Multi-drive axle power transmission structure of novel multi-purpose shaft transmission system for all-terrain vehicle

Abstract

The present invention provides a multi-drive axle power transmission structure of a novel multi-purpose shaft transmission system for an all-terrain vehicle. The multi-drive axle power transmission structure has extensive use, can be applied to multi-drive axle power transmission of an all-terrain amphibious vehicle or wheeled armored vehicle, and can effectively improve the smoothness of high-speed advancing of the all-terrain amphibious vehicle and wheeled armored vehicle on the off-road pavement, and improve the comfort of a driver and passengers. Due to a drive axle gear transmission box shell being mounted at an end portion of an axle tube of an entire drive axle, the entire drive axle provided with a left drive wheel and a right drive wheel can span higher obstacles. Moreover, the off-road performance of the vehicle on complex terrains is greatly improved by a multi-drive axle power transmission system. An input shaft bevel gear right-angle transmission box shell of multiple sets of novel multi-purpose shaft transmission box bodies and a transmission shaft universal joint, etc. connected with an engine in series are mounted in a vehicle body chassis of the all-terrain amphibious vehicle or wheeled armored vehicle, and the chassis armor can effectively prevent explosive fragments and shock waves from damaging the transmission system in the vehicle body chassis.

Description

Multi-drive axle power transmission structure of a new multi-purpose shaft transmission system for all-terrain vehicles Technical Field

[0001] The present invention relates to the technical field of power transmission structures of all-terrain amphibious vehicles and wheeled armored vehicles, and in particular to a multi-drive axle power transmission structure of a novel multi-purpose shaft transmission system of an all-terrain vehicle. Background Art

[0002] All modern all-terrain amphibious vehicles and armored vehicles utilize a drive axle structure in which the vehicle body and drive axle are integrated into a single unit. However, this rear drive axle structure is not well suited for off-road driving and does not guarantee adequate comfort for the driver and passengers. This is due to the vehicle's short frame or the significant mounting limitations between the engine and the drive axle shaft. Consequently, most vehicles utilize a single-piece design for the vehicle frame and drive axle, with the frame and drive axle fixed to form a rigid structure. This integration of the frame and drive axle requires the use of a chain drive to transmit power across multiple drive shafts. For example, the chain drive system in "Chain Drive Device for Amphibious All-Terrain Vehicle," filed with application number cn200520010330.5, occupies valuable space within the vehicle body, reducing its effective use. However, this approach effectively transmits power from the engine to the drive shafts through the sprocket chain. However, this drive system has its drawbacks. Because the vehicle body frame and drive axles are integrated into a single structure, the chain drive between each drive axle significantly reduces the durability of the transmission system. This integral structure reduces the rebound response of the drive axle on uneven surfaces, preventing it from effectively mitigating impact forces from the road surface. This can cause the vehicle to experience severe jolting when traveling on uneven surfaces. Because the vehicle body frame and drive axles are integrated into a rigid, integral structure, when the drive axles fluctuate, the frame can only pivot around the vehicle's center of gravity, preventing the rigidly connected multiple drive axles from forming a cross-axle configuration. Consequently, when the vehicle travels off-road, each wheel's tracking performance is poor, preventing it from maintaining close contact with the road surface. One wheel is always in the air, reducing power transmission efficiency and significantly reducing passenger comfort. Therefore, it is imperative to design a new multi-axle drive system for all-terrain vehicles that offers superior performance, high transmission efficiency, and the ability to adapt to off-road driving while maintaining passenger comfort, while also allowing for the separation of the vehicle body and drive axles. Summary of the Invention

[0003] In order to solve the problems in the prior art, the present invention proposes a multi-drive axle power transmission structure of a new multi-purpose shaft transmission system for an all-terrain vehicle. The specific technical solutions are as follows:

[0004] The new multi-purpose shaft transmission box adopts a vertically arranged installation method to transmit power. Taking the front double-axle and double-axle structure of the double-axle structure with four-wheel drive independent suspension steering and the matching rear axle with four-wheel drive integral drive axle double rear axle structure as an example, the first set of transmission box housings, the second set of transmission box housings and the third set of transmission box housings of the universal joint output shaft bevel gear transmission box housing of the new multi-purpose shaft transmission box installed in a vertical position, the left universal joint output shaft bearing seat and the right universal joint output shaft bearing seat and the universal joint output spline shaft of each set of transmission box housings are arranged horizontally and installed in the middle position of the front and rear drive axles of the longitudinal axis of the armored wheel type body chassis of the all-terrain amphibious vehicle.

[0005] The left and right universal joint output shaft bearing seats and the universal joint output shaft bearing seats and the universal joint output spline shaft of the first set of transversely arranged universal joint output shaft bevel gear right-angle transmission box housing are installed in the middle position of the first drive shaft at the front of the vehicle chassis. The left and right independent suspension clevis shaft steering knuckles of the first set of drive axles are transversely arranged and installed at the position of the first drive shaft on the left and right front sides of the vehicle body of all-terrain amphibious vehicles, wheeled armored vehicles, etc.

[0006] The left and right universal joint output shaft bearing seats and the universal joint output shaft bearing seats and the universal joint output spline shaft of the second set of transversely arranged and installed universal joint output shaft bevel gear right-angle transmission box housing are installed in the middle position of the second drive shaft at the front of the vehicle chassis. The left independent suspension clevis shaft steering knuckle and the right independent suspension clevis shaft steering knuckle of the second set of drive axles are transversely arranged and installed at the position of the second drive shaft on the left and right sides of the front of the vehicle body of all-terrain amphibious vehicles, wheeled armored vehicles, etc.

[0007] At the same time, the third integral drive axle and the fourth integral drive axle are transversely arranged and installed at the positions of the third drive shaft and the fourth drive shaft at the rear of the vehicle body of all-terrain amphibious vehicles, wheeled armored vehicles, etc. The left side universal joint output shaft bearing seat and the right side universal joint output shaft bearing seat of the third set of universal joint output shaft bevel gear right-angle transmission box housing and the universal joint output spline shaft are transversely arranged and installed between the two sets of bridge tubes of the third integral drive axle and the fourth integral drive axle and the three shafts are kept in a parallel installation position with each other.

[0008] The first set of transmission box housings, the second set of transmission box housings and the third set of transmission box housings of the universal joint output shaft bevel gear transmission box housing of the new multi-purpose shaft transmission box body, the left universal joint output shaft bearing seat and the right universal joint output shaft bearing seat and the universal joint output spline shaft of each set of transmission box housings are installed in the form of an integral structure with the vehicle body chassis, maintaining a relatively fixed power transmission position with the vehicle body.

[0009] At the lower part of the vehicle chassis, the left-side independent suspension clevis axle steering knuckle of the first drive axle is connected to the left side of the vehicle body through a double A-type support arm, and the right-side independent suspension clevis axle steering knuckle is connected to the right side of the vehicle body through a double A-type support arm. The left-side independent suspension clevis axle steering knuckle of the second drive axle is connected to the left side of the vehicle body through a double A-type support arm, and the right-side independent suspension clevis axle steering knuckle is connected to the right side of the vehicle body through a double A-type support arm. At the same time, the third and fourth integral drive axles are flexibly connected to the vehicle chassis using a longitudinal four-link and a transverse Panhard rod. The suspension uses coil springs, air springs or leaf springs to support the vehicle body.

[0010] The multi-drive axle power transmission structure of the new multi-purpose shaft transmission system of the all-terrain vehicle includes a new multi-purpose shaft transmission box body, which is characterized by:

[0011] The new multi-purpose shaft transmission box is composed of three parts: the input shaft bevel gear right-angle transmission box housing, the intermediate transmission shaft support protection tube, and the universal joint output shaft bevel gear right-angle transmission box housing. The input shaft bevel gear right-angle transmission box housing and the internally installed input spline shaft and bevel transmission gear bearing combination, the intermediate transmission shaft support protection tube of suitable length and the intermediate transmission shaft and driven bevel gear combination installed in the tube cavity, the universal joint output shaft bevel gear right-angle transmission box housing and the internally installed output shaft bevel transmission gear bearing combination, the left end driven bevel gear, the right end driven bevel gear and the end universal joint output spline shaft combination. The input shaft bevel gear right-angle transmission box housing is composed of a plurality of groups of cylindrical housings with different diameters. The input shaft bevel gear right-angle transmission box housing includes an active bevel gear cylindrical housing, a small bearing seat cylindrical housing with a large bearing seat cylindrical housing, and a driven bevel gear cylindrical housing and a driven bevel gear bearing seat cylindrical housing in the vertical direction are combined into an irregular input shaft bevel gear right-angle transmission box shell. The active bevel gear cylindrical housing and the small bearing seat cylindrical housing in the horizontal direction of the input shaft are welded together. In the vertical direction, the driven bevel gear cylindrical housing and the active bevel gear cylindrical housing and the small bearing cylindrical housing in the horizontal direction are welded into an integrated structure. The flange of the active bevel gear cylindrical housing in the horizontal direction is fastened to the flange of the large bearing seat cylindrical housing with bolts. In the vertical direction, the flange of the driven bevel gear bearing seat cylindrical housing is fastened to the flange of the driven bevel gear cylindrical housing with bolts, and the input shaft bevel gear right-angle transmission box housing of the new multi-purpose shaft transmission box body is installed with an input shaft active bevel gear combination and an intermediate transmission shaft driven bevel gear combination, the universal joint of the engine transmission shaft or the universal joint of the intermediate transmission shaft is in a horizontal position and the input spline shaft extending longitudinally backward is inserted into the input shaft bevel gear right-angle transmission box housing of the new multi-purpose shaft transmission box body which is installed side by side and coaxially in a longitudinal position, two sets of large bearings are installed in the large input shaft bearing seat in the horizontal direction in the input shaft bevel gear right-angle transmission box housing, and an internal tooth spline sleeve that can mesh with the input spline shaft is installed in the large bearing hole.And the inner end of the internal spline shaft sleeve of suitable length is welded with a bevel gear, that is, an integrated internal spline shaft bevel gear combination, two sets of small bearings are installed in the small bearing seat of the input shaft in the horizontal direction in the input shaft bevel gear right angle transmission box housing, and gaskets for adjusting the gap are installed on the left and right sides of the small bearing hole, the universal joint of the engine drive shaft or the intermediate drive shaft universal joint input spline shaft penetrates into the input shaft bevel gear right angle transmission box housing and is installed in the internal spline hole of the integrated internal spline shaft bevel gear in the large bearing hole and is aligned with the input The spline shaft parts of the input shaft mesh with each other and transmit power. The coaxial optical shaft part passes through the bearing holes of the two sets of small bearings installed in the small bearing seat, and then a universal joint is installed on the spline shaft part exposed at the end of the input shaft bevel gear right angle transmission box housing and fastened with a large nut. The universal joint input spline shaft at the front and rear ends of the output shaft bearing seat at the end of the input shaft bevel gear right angle transmission box housing is horizontal and extends longitudinally forward and backward. The output spline shaft and the intermediate transmission shaft are connected. It is the input shaft coaxial spline shaft of the input shaft bevel gear right angle transmission box housing.

[0012] The intermediate transmission shaft support protection tube of the novel multi-purpose shaft transmission box is composed of a plurality of cylindrical shell tubes of different diameters and lengths, including: a driven bevel gear bearing seat cylindrical shell in the vertical direction, an intermediate transmission shaft support protection tube shell of suitable length and a cylindrical shell of the intermediate transmission shaft end input shaft bevel gear bearing seat welded into a coaxial intermediate transmission shaft support protection tube. In the vertical direction, the flange of the driven bevel gear cylindrical housing of the input shaft bevel gear right angle transmission box housing and the flange of the driven bevel gear bearing seat cylindrical housing of the intermediate transmission shaft support protection tube are fastened with bolts, and in the vertical direction, the flange of the input shaft bevel gear bearing seat cylindrical housing at the end of the intermediate transmission shaft support protection tube and the flange of the input shaft bevel gear bearing seat cylindrical housing installed on the universal joint output shaft bevel gear right angle transmission box housing are fastened with bolts, and the driven bevel gear vertically installed in the input shaft bevel gear right angle transmission box housing and the horizontal input shaft is installed in the bearing seat of the vertical driven bevel gear cylindrical housing, while the input shaft active bevel gear installed on the horizontal input spline shaft is installed with the vertical direction The intermediate transmission shaft and the driven bevel gear mesh with each other and transmit power. An intermediate transmission shaft of suitable length is installed in the tube cavity of the intermediate transmission shaft support protection tube which is installed in a vertical direction with the horizontal input shaft. The two ends of the intermediate transmission shaft are spline shaft parts. The spline head part of the upper end penetrates into the housing of the input shaft bevel gear right-angle transmission box and meshes with the spline groove in the center spline hole of the driven bevel gear meshing with the input shaft active bevel gear. The spline head part of the lower end penetrates into the housing of the universal joint output shaft bevel gear right-angle transmission box and meshes with the spline groove in the center spline hole of the input bevel gear at the end of the intermediate transmission shaft which meshes with the left output shaft driven bevel gear and the right output shaft driven bevel gear installed on the horizontal universal joint output spline shaft and transmits power.

[0013] The universal joint output shaft bevel gear right-angle transmission box housing of the novel multi-purpose shaft transmission box body is composed of a plurality of groups of cylindrical shells with different diameters, including: a left universal joint output shaft bearing seat cylindrical shell and a right universal joint output shaft bearing seat cylindrical shell in a horizontal position, a universal joint output shaft bevel gear cylindrical shell in the middle position, and an intermediate transmission shaft terminal output shaft bevel gear cylindrical shell installed in a vertical position, wherein a left output shaft bearing seat cylindrical shell and a right output shaft bearing seat cylindrical shell are welded on the left and right sides outside the universal joint output shaft bevel gear cylindrical shell, a group of intermediate transmission shaft terminal output shaft bevel gear cylindrical shells are installed in the vertical direction of the universal joint output shaft bevel gear cylindrical shell, and in the vertical direction, the flange of the terminal output shaft bevel gear bearing seat cylindrical shell of the intermediate transmission shaft support protection tube is fastened with bolts to the flange of the intermediate transmission shaft terminal output shaft bevel gear cylindrical shell of the universal joint output shaft bevel gear right-angle transmission box housing;

[0014] The output shaft bevel gear at the terminal end of the intermediate transmission shaft installed vertically in the housing of the universal joint output shaft bevel gear right angle transmission box is the input shaft bevel gear meshing with the intermediate transmission shaft in the housing of the universal joint output shaft bevel gear right angle transmission box. The input shaft bevel gear meshing with the intermediate transmission shaft and the bearing assembly are installed in the cylindrical housing of the output shaft bevel gear bearing seat at the terminal end of the intermediate transmission shaft, and mesh with the left output shaft driven bevel gear and the right output shaft driven bevel gear installed on the universal joint output spline shaft in the horizontal position in the housing of the universal joint output shaft bevel gear right angle transmission box to transmit power;

[0015] The output shaft bearing seat on the left and the output shaft bearing seat on the right are respectively installed with two sets of bearings in a horizontal position in the housing of the universal joint output shaft bevel gear right angle transmission box. The left output shaft driven bevel gear and the right output shaft driven bevel gear are respectively installed in the two sets of bearing holes. The end universal joint output spline shaft is inserted into the center holes of the left driven bevel gear and the right driven bevel gear. The middle position of the left driven bevel gear and the right driven bevel gear installed on the end universal joint output spline shaft is inserted into the end universal joint output spline shaft. A sliding gear sleeve is inserted into the middle position of the left driven bevel gear and the right driven bevel gear, wherein the center holes of the left driven bevel gear and the right driven bevel gear are light hole structures without internal tooth spline grooves, and the sliding gear sleeve inserted on the end universal joint output spline shaft The center hole of the sleeve has an internal tooth spline groove structure and meshes with the output spline shaft. At the same time, the sliding gear sleeve can slide left and right, respectively meshing with the inner teeth of the driven bevel gear on the left or the driven bevel gear on the right side of the end universal joint output spline shaft, thereby realizing the forward and reverse functions of the driven bevel gear and the output spline shaft of the end output shaft, so that the vehicle has a forward and backward reverse gear function. At the same time, the end universal joint output spline shaft installed in the left universal joint output shaft bearing seat and the right universal joint output shaft bearing seat in a horizontal position outside the universal joint output shaft bevel gear right-angle transmission box housing is equipped with the left end constant velocity ball cage universal joint outer ball cage and the right end constant velocity ball cage universal joint at the left and right ends. Power is output to both sides at the same time, providing convenient conditions for the subsequent arrangement and installation of the transmission half shaft.

[0016] The half-axle differential can be optionally installed in the housing of the universal joint output shaft bevel gear right-angle transmission case, so that the left and right constant-speed ball cages and universal joint outer ball cages installed at the left and right ends of the universal joint output spline shaft have a differential function. In the horizontal position of the universal joint output shaft bevel gear right-angle transmission case housing, two sets of bearings are installed in the left universal joint output shaft bearing seat and the right universal joint output shaft bearing seat respectively. The boss edges on the left and right sides of the differential case are respectively installed in the two sets of bearing holes. A differential gear combination is installed in the differential case, and a driven bevel gear on the end output shaft differential is installed outside the differential case. The input shaft bevel gear that meshes with the vertically installed intermediate drive shaft in the universal joint output shaft bevel gear right-angle transmission case housing meshes with each other. At the same time, the left and right universal joint output shaft bearing seats are penetrated into the bearing holes installed in the left universal joint output shaft bearing seats. The left and right transmission spline half-shafts are respectively penetrated into the center spline holes of the left and right differential bevel gears installed in the differential housing and mesh with each other. The left end constant velocity ball cage universal joint is installed at the left spline half-shaft end and the right end constant velocity ball cage universal joint is installed at the right spline half-shaft end, and power is transmitted to the left and right sides at the same time.

[0017] Furthermore, the integral drive axle used for multi-drive axle power transmission is the same integral drive axle, and an integral drive shaft is installed in the integral drive axle bridge tube. The drive axle gear or sprocket chain with an elliptical longitudinal section installed at the left or right end of the integral drive axle bridge tube) is composed of a shell with a rectangular cross section and two ends of the rectangular shell with semi-cylindrical shell ends and an integral drive axle gear or sprocket chain transmission box shell with an elliptical longitudinal section and a suitable length, the interior of which is suitable for installing a drive gear combination or a drive sprocket combination. Taking the drive axle gear transmission box shell as an example, a drive axle gear transmission box shell is installed in the drive axle gear transmission box shell. A plurality of transmission gear assemblies are arranged in sequence and mesh with each other, wherein symmetrical drive axle tube bearing seats are welded to the left and right inner walls of the integral drive axle tube end within the drive axle gear transmission case housing, an integral drive shaft is installed and passed through the symmetrical axle tube bearing seats, a drive shaft transmission first large gear is installed on the integral drive shaft, bearings are mounted on the left and right sides of the integral drive shaft, and the bearings are also mounted in the symmetrical drive axle tube bearing seats on the left and right inner walls within the drive axle gear transmission case housing, maintaining the transmission first large gear installed on the integral drive shaft in a transmission position intermediate between the left and right bearing seats of the drive axle tube. A symmetrical intermediate transmission gear assembly bearing seat is mounted on the left and right inner walls at a central position within the drive axle gear transmission case housing, bearings and an intermediate transmission gear shaft are mounted in the left and right bearing seats, and an intermediate transmission gear is mounted on the intermediate transmission gear shaft at a position intermediate between the left and right bearing sets. The drive axle gear transmission case housing has symmetrically mounted input shaft bearing seats on the left and right inner walls of the input shaft end. The splined shaft of the outer CVJ (Constant Velocity Joint) passes through the bearing holes mounted in the left and right bearing seats. The input shaft drive pinion is mounted on the splined shaft of the outer CVJ (Constant Velocity Joint) between the left and right bearing seats. The splined shaft of the outer CVJ passes through the bearing seat at the input shaft end of the drive axle gear transmission case housing and is secured with a nut at the protruding portion. The left and right sets of bearings are installed in the bearing seats at the left and right ends of the integral drive axle bridge tube, which are used to fix the integral drive shaft installed in the tube cavity of the integral drive axle bridge tube. There are spline teeth at both ends of the integral drive shaft, which can be used to install flanges for fixing wheel hub tires and flanges for fixing brake discs, and the protruding parts of the flanges at both ends of the integral drive shaft are fastened with nuts. Longitudinal and transverse push-pull rod supports, shock absorber spring supports, brake pump supports and other accessories are also welded on the outside of the integral drive axle bridge tube to control the movement posture of the integral drive axle.

[0018] To expand the applicability of the integrated drive axle, the transmission gear mounted on the integrated drive shaft within the integrated drive axle gearbox housing can be replaced with a differential gear assembly with differential function, and the integrated drive shaft mounted within the integrated drive axle tube can be replaced with left and right drive axle half shafts compatible with the differential assembly. The invention is characterized in that the differential gear assembly is mounted within the drive axle gearbox housing, positioned between two symmetrical left and right axle tube bearing seats. The left and right bosses of the differential housing engage with the left and right axle tube bearing seats within the drive axle gearbox housing. A differential bevel gear assembly is mounted within the differential housing. The spline shafts of the left and right drive axle half shafts, which extend through the left and right ends of the integrated drive axle tube, respectively extend through the center spline shaft holes of the left and right differential bevel gears within the differential housing, meshing and transmitting power. Bearings are mounted within the left and right bearing seats of the integrated drive axle tube to secure the left and right drive axle half shafts, providing differential function between the two drive axle half shafts.

[0019] The drive sprocket and chain assembly within the integrated drive axle sprocket and chain transmission case is an improved version of the drive gear structure within the integrated drive axle gear transmission case. The first large gear mounted on the integrated drive shaft between the two symmetrical left and right sets of drive axle tube bearing seats within the integrated drive axle gear transmission case is replaced with a first large gear. The second intermediate gear mounted on the intermediate gear shaft within the integrated drive axle gear transmission case is replaced with an intermediate chain guide wheel. The third small gear mounted on the input shaft between the two symmetrical left and right sets of input shaft bearing seats within the integrated drive axle gear transmission case is replaced with a third small gear. A transmission chain meshes and transmits power between the transmission sprockets, while the intermediate chain guide wheel assists the chain in smooth operation. The integrated drive axle sprocket and chain transmission case and the integrated drive axle gear transmission case have the same appearance, installation location, and function, and the installation locations of the shafts within the transmission case are the same.

[0020] Furthermore, the transmission structure characteristics of the special all-terrain amphibious vehicle or wheeled armored vehicle with four-drive axles and 8x8 drive wheels are:

[0021] The front axle of the multi-drive axle power transmission structure of the new multi-purpose shaft transmission system of the all-terrain vehicle is a front double-axle structure with independent suspension steering; when the universal joint output shaft bevel gear right-angle transmission box housing of the two sets of new multi-purpose shaft transmission boxes in this scheme is applied to two sets of independent suspension clevis shaft steering knuckle drive axles, the left universal joint output shaft bearing seat and the right universal joint output shaft bearing seat of the universal joint output shaft bevel gear right-angle transmission box housing of the first set of new multi-purpose shaft transmission boxes and the universal joint output spline shaft extending to the left and right sides are horizontally arranged and installed in the middle position of the first set of independent suspension drive axle body at the first drive axle position at the front of the all-terrain amphibious vehicle or wheeled armored vehicle body, and are at the middle position of the constant velocity ball joint universal joint and the left transmission half shaft of the left clevis shaft steering knuckle and the constant velocity ball joint universal joint and the right transmission half shaft of the right clevis shaft steering knuckle installed on both sides of the vehicle body, and are installed with the vehicle body chassis to form an integral structure.

[0022] When two sets of independent suspension clevis steering knuckle drive axles are used to transmit power, the left and right clevis steering knuckles installed on the left and right sides of the vehicle body of all-terrain amphibious vehicles, wheeled armored vehicles, etc. and are coaxial are connected to the vehicle frame through a preferred connection method such as double A-type support arms, multi-link trailing arms or longitudinal swing arms. Taking the first set of independent suspension clevis steering knuckle power transmission as an example, the universal joint output shaft bevel gear right-angle transmission box housing of the first set of new multi-purpose shaft transmission box body matched with the front of the vehicle body and the transmission half-shaft that transmits power to the left, the constant velocity ball joint universal joint of the first set of independent suspension clevis steering knuckle on the left side of the vehicle body, the transmission half-shaft that transmits power to the right, and the constant velocity ball joint universal joint of the first set of independent suspension clevis steering knuckle on the right side of the vehicle body constitute the first set of independent suspension steering front axle structure. The constant velocity ball joint of the left side of the first independent suspension and the constant velocity ball joint of the right side of the first independent suspension are installed in the center holes of the two coaxial left and right side of the sheepshead shaft steering knuckles on the left and right sides of the vehicle body, and the sheepshead shaft steering knuckles are connected to the vehicle body through double A-type support arms, and are arranged and installed on the left and right sides of the first drive shaft at the front of the vehicle body of all-terrain amphibious vehicles, wheeled armored vehicles, etc. At the same time, the axis center lines of the two coaxial sheepshead shaft steering knuckles, the constant velocity ball joint of the left side of the sheepshead shaft steering knuckle and the constant velocity ball joint of the right side of the sheepshead shaft steering knuckle, are located at the left side of the universal joint output shaft bearing seat and the right side of the universal joint output shaft bearing seat of the first set of universal joint output shaft bevel gear right-angle transmission box housing installed as an integral structure with the vehicle body, and there is a sufficiently long travel distance between the axis center lines of the two coaxial constant velocity ball joints of the left side of the sheepshead shaft steering knuckle and the constant velocity ball joint of the right side of the sheepshead shaft steering knuckle and the vehicle chassis.

[0023] A left-side constant velocity ball joint (CVJ) outer ball cage is mounted on the left end of the CVJ output spline shaft outside the left end of the CVJ output shaft bearing seat of the first set of CVJ output shaft bevel gear right-angle transmission case housing, which is laterally arranged and mounted at the first drive axle position on the vehicle chassis. The CVJ outer ball cage is fastened with a center screw. A transmission half-shaft extending laterally to the left is mounted in the center spline hole of the inner ball cage of the left CVJ outer ball cage, which is also mounted on the left end of the CVJ output spline shaft of the first set of CVJ output shaft bevel gear right-angle transmission case housing. The inner ball cage mounted on the right end of the transmission half-shaft engages with the CVJ outer ball cage. The transmission half-shaft, which transmits power to the left and is mounted through the center spline hole of the inner ball cage, extends laterally to the left to the right within the steering knuckle hole of the clevis shaft of the left independent suspension of the vehicle body. The left end of the transmission half-shaft engages with the center spline hole of the inner ball cage to transmit power.

[0024] A right-side constant velocity ball joint (CVJ) outer ball cage is mounted on the right side of the right-side universal joint output shaft bearing seat of the first set of universal joint output shaft bevel gear right-angle transmission case housings, which are transversely arranged and mounted on the first drive axle position on the vehicle chassis. A right-side constant velocity ball joint (CVJ) outer ball cage is simultaneously mounted on the right side of the universal joint output shaft bearing seat of the first set of universal joint output shaft bevel gear right-angle transmission case housings and fastened with a center screw. A transmission half-shaft extending laterally to the right is mounted in the center spline hole of the inner ball cage within the right-side constant velocity ball joint outer ball cage, which is also mounted on the right side of the universal joint output shaft bevel gear right-angle transmission case housings. The inner ball cage mounted on the left side of the transmission half-shaft engages with the constant velocity ball joint outer ball cage. The transmission half-shaft, which transmits power to the right and is mounted through the center spline hole of the inner ball cage, extends laterally to the right to the left within the steering knuckle hole of the independent suspension clevis shaft of the vehicle body. The right side of the transmission half-shaft engages with the center spline hole of the inner ball cage to transmit power.

[0025] When the universal joint output shaft bevel gear right-angle transmission box housing of the two sets of new multi-purpose shaft transmission boxes in this scheme are used for the independent suspension clevis shaft steering knuckle, the left universal joint output shaft bearing seat and the right universal joint output shaft bearing seat of the universal joint output shaft bevel gear right-angle transmission box housing of the second set of new multi-purpose shaft transmission box and the universal joint output spline shaft extending to the left and right sides are also arranged horizontally and installed in the middle position of the second group of independent suspension drive axle body at the second drive axle position at the front of the all-terrain amphibious vehicle or wheeled armored vehicle body. At the same time, they are located in the middle position of the constant velocity ball cage universal joint and the left transmission half shaft of the left clevis shaft steering knuckle and the constant velocity ball cage universal joint and the right transmission half shaft of the right clevis shaft steering knuckle installed on both sides of the vehicle body and are installed into an integral structure with the vehicle body chassis.

[0026] When two sets of independent suspension clevis steering knuckle drive axles are used to transmit power, the left and right clevis steering knuckles installed on the left and right sides of the vehicle body of all-terrain amphibious vehicles, wheeled armored vehicles, etc. and are coaxial are connected to the vehicle frame through a preferred connection method such as double A-type support arms, multi-link trailing arms or longitudinal swing arms. Taking the second set of independent suspension clevis steering knuckle power transmission as an example, the second set of new multi-purpose shaft transmission box body at the front of the vehicle body is equipped with a universal joint output shaft bevel gear right-angle transmission box housing and a transmission half-shaft for transmitting power to the left, as well as the constant velocity ball joint universal joint of the second set of independent suspension clevis steering knuckle on the left side of the vehicle body and the transmission half-shaft for transmitting power to the right, and the constant velocity ball joint universal joint of the second set of independent suspension clevis steering knuckle on the right side of the vehicle body to form a second set of independent suspension steering double front axle structure. The constant velocity ball joint universal joint of the left side of the second independent suspension and the constant velocity ball joint universal joint of the right side of the second independent suspension are installed in the center holes of the two coaxial left and right side of the cross shaft steering knuckles and connected to the vehicle body through double A-type support arms, and are arranged and installed on the left and right sides of the second drive shaft at the front of the vehicle body of all-terrain amphibious vehicles, wheeled armored vehicles, etc. At the same time, the axis center lines of the two coaxial cross shaft steering knuckles, the constant velocity ball joint universal joint of the left side of the cross shaft steering knuckle and the constant velocity ball joint universal joint of the right side of the cross shaft steering knuckle, are located at the left side of the universal joint output shaft bearing seat and the right side of the universal joint output shaft bearing seat of the second set of universal joint output shaft bevel gear right-angle transmission box housing installed as an integral structure with the vehicle body and the lower position of the vehicle body, and there is a sufficiently long travel distance between the axis center lines of the two coaxial constant velocity ball joints of the left side of the cross shaft steering knuckle and the constant velocity ball joint universal joint of the right side of the cross shaft steering knuckle and the vehicle chassis.

[0027] A left CVJ outer ball joint is mounted on the left end of the CVJ output spline shaft at the outer left end of the left CVJ output shaft bearing seat of the second set of CVJ output shaft bevel gear right-angle transmission case housing, which is laterally mounted on the vehicle chassis at the second drive axle position. The CVJ outer ball joint is secured to the vehicle chassis with a central screw. A drive axle shaft extending laterally to the left is mounted within the center spline hole of the inner ball joint within the left CVJ outer ball joint mounted on the left end of the CVJ output spline shaft of the second set of CVJ output shaft bevel gear right-angle transmission case housing. The inner ball joint mounted on the right end of the drive axle shaft engages with the CVJ outer ball joint. The drive axle shaft, which transmits power to the left and is mounted through the center spline hole of the inner ball joint, extends laterally to the left to the right within the steering knuckle hole of the left independent suspension clevis shaft of the vehicle body. The left end of the drive axle shaft engages with the center spline hole of the inner ball joint to transmit power.

[0028] A right-side constant velocity ball joint outer ball joint is mounted on the right side of the universal joint output shaft bearing seat or the right end of the universal joint output spline shaft of the second set of universal joint output shaft bevel gear right-angle transmission case housing, which is transversely mounted at the second drive axle position on the vehicle chassis, and is fastened with a center screw. A right-side constant velocity ball joint outer ball joint is mounted in the center spline hole of the inner ball joint within the right-side constant velocity ball joint outer ball joint mounted on the right end of the universal joint output spline shaft of the second set of universal joint output shaft bevel gear right-angle transmission case housing. A right-side drive axle shaft extending laterally to the right is mounted in the center spline hole of the inner ball joint. The inner ball joint mounted on the left end of the drive axle shaft engages with the constant velocity ball joint outer ball joint. The right-side drive axle shaft, which transmits power to the right and is mounted in the center spline hole of the inner ball joint, extends laterally to the right and is mounted in the left-side telescopic constant velocity ball joint outer ball joint within the steering knuckle hole of the independent suspension clevis shaft on the right side of the vehicle body. The right end of the drive axle shaft engages with the center spline hole of the inner ball joint to transmit power.

[0029] An inter-axle differential can be optionally installed in the housing of the universal joint output shaft bevel gear right-angle transmission box of the supporting independent suspension clevis shaft steering knuckle between the left universal joint output shaft bearing seat and the right universal joint output shaft bearing seat, so that a differential function is provided between the left constant velocity ball cage universal joint installed at the left end of the universal joint output spline shaft at the left end outside the left universal joint output shaft bearing seat, the right constant velocity ball cage universal joint installed at the right end of the universal joint output spline shaft at the right end outside the right universal joint output shaft bearing seat, the left and right drive half shafts and the tires.

[0030] The rear axle of the double-bridge structure is a four-wheel drive integral drive axle double rear axle structure. The matching third integral drive axle and fourth integral drive axle are composed of a tubular bridge tube of suitable length and an elliptical drive axle gear or sprocket chain transmission box shell installed at the left end position of the third integral drive axle tube and an elliptical drive axle gear or sprocket chain transmission box shell installed at the right end position of the fourth integral drive axle tube to form an integral drive axle shell. The two sets of rear-drive integral drive axles share a set of new multi-purpose shaft transmission boxes.

[0031] The left and right universal joint output shaft bearing seats of the universal joint output shaft bevel gear right-angle transmission case housing of the third set of new multi-purpose shaft transmission box and the universal joint output shaft bearing seats and the universal joint output spline shaft extending to the left and right sides are horizontally arranged and installed at the rear of the body of an all-terrain amphibious vehicle or a wheeled armored vehicle, located in the middle position of the third integral drive axle and the fourth integral drive axle and installed with the vehicle chassis to form an integral structure. At the same time, the left and right universal joint output shaft bearing seats of the universal joint output shaft bevel gear right-angle transmission case housing and the universal joint output spline shaft extending to the left and right sides are maintained in a parallel installation position with the third and fourth groups of integral drive axles of the double rear axle.

[0032] The universal joint output shaft bevel gear right-angle transmission box housing of the third set of new multi-purpose shaft transmission box arranged laterally and installed on the chassis of an all-terrain amphibious vehicle or a wheeled armored vehicle is a universal joint output shaft. The universal joint output spline shaft ends extending outward from the left and right ends of the universal joint output shaft bearing seat and the right universal joint output shaft bearing seat are simultaneously installed with the left constant velocity ball cage universal joint outer ball cage and the right constant velocity ball cage universal joint and fastened with a center screw, and a transmission half shaft extending laterally to the left is inserted and installed in the center spline hole of the inner ball cage of the left constant velocity ball cage universal joint outer ball cage, and a transmission half shaft extending laterally to the right is inserted and installed in the center spline hole of the inner ball cage of the right constant velocity ball cage universal joint outer ball cage.

[0033] In order to correspond to the installation position of the left side universal joint output shaft bearing seat of the third set of universal joint output shaft bevel gear right-angle transmission box housing and the constant velocity ball cage universal joint installed at the left end of the universal joint output spline shaft end and the transmission half-shaft that outputs power to the left, the third integral drive axle gear (or sprocket chain) transmission box housing is preferably installed in a horizontal position at the left end position of the third integral drive axle bridge tube. The drive axle gear (or sprocket chain) transmission box housing installed at the left end of the third integral drive axle bridge tube is installed in a horizontal position parallel to the ground, and can also be in a vertical position or any position that is convenient for the installation of the transmission half-shaft. Among them, the horizontal position to transmit power is preferably the best example.

[0034] The third integral drive axle gear or sprocket chain transmission box housing installed at the left end of the integral drive axle is in a horizontal installation position, and the universal joint and input spline shaft are in the installation position on the left and rear end of the third integral drive axle, so that the constant velocity ball cage universal joint outer ball cage with telescopic function installed to the right on the right input spline shaft outside the integral drive axle gear or sprocket chain transmission box housing is in a relative position with the constant velocity ball cage universal joint outer ball cage installed to the left on the left end of the left universal joint output spline shaft outside the left universal joint output shaft bevel gear right angle transmission box housing of the third set of new multi-purpose shaft transmission box. The transmission half-shaft that outputs power to the left is preferably arranged horizontally and installed outside the third set of new multi-purpose shaft transmission box body, the universal joint output shaft, the bevel gear right-angle transmission box housing, and the left end of the universal joint output spline shaft is installed to the left in the constant velocity ball cage universal joint outer ball cage. The transmission half-shaft installed in the constant velocity ball cage universal joint outer ball cage and the center spline hole of the inner ball cage extend horizontally to the left to the drive axle gear or sprocket chain welded on the left end of the third integral drive axle bridge tube outside the right input shaft bearing seat of the transmission box housing. The constant velocity ball cage universal joint outer ball cage with telescopic function extends to the right and engages with the center spline hole of the inner ball cage to transmit power.

[0035] In order to correspond to the third set of universal joint output shaft bevel gear right angle transmission box housing, the universal joint output shaft bearing seat and the constant velocity ball cage universal joint installed on the right end of the universal joint output spline shaft, and the installation position of the transmission half-shaft that outputs power to the right, the fourth integral drive axle gear or sprocket chain transmission box housing is preferably installed in a horizontal position at the right end position of the fourth integral drive axle bridge tube. The drive axle gear (or sprocket chain transmission box housing) installed on the right end of the fourth integral drive axle bridge tube is parallel to the ground and in a horizontal installation position. It can also be a vertical position or any position that is convenient for the installation of the transmission half-shaft, among which the horizontal position power transmission is preferably the best example.

[0036] The fourth integral drive axle gear (or sprocket chain) transmission box housing installed at the right end of the integral drive axle is in a horizontal installation position, and the universal joint and input spline shaft are in the installation position on the right side and front end of the fourth integral drive axle, so that the constant velocity ball cage universal joint outer ball cage with telescopic function installed to the left on the left input spline shaft outside the integral drive axle gear (or sprocket chain) transmission box housing is in a relative position with the constant velocity ball cage universal joint outer ball cage installed to the right on the right end of the universal joint output spline shaft outside the right side universal joint output shaft bevel gear right angle transmission box housing of the third set of new multi-purpose shaft transmission box. At the same time, the transmission half-shaft that outputs power to the right is preferably arranged horizontally and installed outside the third set of new multi-purpose shaft transmission box body universal joint output shaft bevel gear right-angle transmission box housing, and the right end of the universal joint output spline shaft is installed to the right in the constant velocity ball cage universal joint outer ball cage. The transmission half-shaft installed in the constant velocity ball cage universal joint outer ball cage and the center spline hole of the inner ball cage penetrates and extends horizontally to the right to the drive axle gear or sprocket chain welded on the right end of the fourth integral drive axle bridge tube outside the transmission box housing. The outer ball cage of the constant velocity ball cage universal joint with telescopic function extends to the left outside the left input shaft bearing seat, meshes with the center spline hole of the inner ball cage and transmits power.

[0037] When the third set of new multi-purpose shaft transmission box is used to drive the third set of integral drive axles and the fourth set of integral drive axles, an inter-axle differential can be optionally installed in the middle position of the universal joint output spline shafts at the left and right ends of the universal joint in the universal joint output shaft bevel gear right-angle transmission box housing of the new multi-purpose shaft transmission box, so that a differential function is provided between the left constant velocity ball joint universal joint and the transmission half-shaft that outputs power to the left, and between the right constant velocity ball joint universal joint and the transmission half-shaft that outputs power to the right.

[0038] The dual front axle drive axle used for four-axle drive is an independent suspension steering axle. The first set of new multi-purpose shaft transmission boxes and the second set of new multi-purpose shaft transmission boxes for the two sets of independent suspension front drive axles and the dual rear axle drive axle are integral drive axles and share a set of new multi-purpose shaft transmission boxes. They are the same new multi-purpose shaft transmission boxes. In order to synchronize the rotational speeds of the wheelsets between the dual front axles and the dual rear axles, the transmission speed ratios of the drive axle gear or sprocket chain transmission box housing installed on the third integral drive axle and the transmission gear (or sprocket chain) in the drive axle gear or sprocket chain transmission box housing installed on the fourth integral drive axle can be adjusted to make the rotational speeds of the front wheel group and the rear wheel group the same.

[0039] When the use of the integral drive axle is expanded to apply to the dual rear axle drive of an all-terrain amphibious vehicle or a wheeled armored vehicle, an inter-axle differential can be optionally installed between the left and right drive axle half-shafts in the third integral drive axle gear (or sprocket chain) transmission box housing and the fourth integral drive axle gear or sprocket chain transmission box housing, so that a differential function is provided between the left and right drive axle half-shafts in the integral drive axle bridge tube and the drive wheels installed at both ends.

[0040] The multi-drive axle power transmission structure of the new multi-purpose shaft transmission system of the all-terrain vehicle is expanded to be applied to the all-terrain UTV ATV with three drive axles and 6x6 drive wheels. Or the transmission structure characteristics of amphibious vehicles and wheeled armored vehicles are: the transmission mode of the expanded three-drive axle structure is improved from the transmission mode of the four-drive axle, wherein the front axle of the double-axle structure is a four-wheel drive independent suspension steering front double-axle structure. The first group of left-side independent suspension clevis shaft steering knuckle constant velocity ball cage universal joints and the installed transmission half-shaft for outputting power to the left and the first group of right-side independent suspension clevis shaft steering knuckle constant velocity ball cage universal joints and the installed transmission half-shaft for outputting power to the right are combined with the first set of new multi-purpose shaft transmission box universal joint output shaft bevel gear right-angle transmission box shell and transmit power. At the same time, the second group of left-side independent suspension clevis shaft steering knuckle constant velocity ball cage universal joints and the installed transmission half-shaft for outputting power to the left and the second group of right-side independent suspension clevis shaft steering knuckle constant velocity ball cage universal joints and the installed transmission half-shaft for outputting power to the right are combined with the second set of new multi-purpose shaft transmission box universal joint output shaft bevel gear right-angle transmission box shell and transmit power.

[0041] When expanding the three-axle 6x6 drive structure, the second independent suspension drive axle is removed from the front twin axles of the two independent suspension clevis knuckles. Only the constant velocity ball joint (CVJ) and the left-side power output half-shaft of the first left independent suspension clevis knuckle remain in the first drive axle position, along with the constant velocity ball joint (CVJ) and the right-side power output half-shaft of the first right independent suspension clevis knuckle. These are combined with the universal joint output shaft and the bevel gear right-angle transmission case of the first new multi-purpose axle transmission case to transmit power. When expanding the three-axle structure, the dual-axle rear axle adopts an integral drive axle dual rear axle structure. The third and fourth integral drive axles share the universal joint output shaft and the bevel gear right-angle transmission case of the third new multi-purpose axle transmission case to transmit power. The first independent suspension front axle and the two integral drive rear axles combine to form a three-axle 6x6 drive wheel drive structure. In the above structure, the second set of independent suspension clevis shaft steering knuckle and constant velocity ball joint and the universal joint output shaft bevel gear right-angle transmission box housing of the second set of new multi-purpose shaft transmission box are discarded, and the three drive axles only use two sets of new multi-purpose shaft transmission boxes, the universal joint output shaft bevel gear right-angle transmission box housing of the first set of new multi-purpose shaft transmission box and the universal joint output shaft bevel gear right-angle transmission box housing of the third set of new multi-purpose shaft transmission box to transmit power.

[0042] When the use of the integral drive axle is expanded to apply to the dual rear axle drive of an all-terrain amphibious vehicle or a wheeled armored vehicle, an inter-axle differential can be optionally installed between the left and right drive axle half-shafts in the third integral drive axle gear (or sprocket chain) transmission box housing and the fourth integral drive axle gear or sprocket chain transmission box housing, so that a differential function is provided between the left and right drive axle half-shafts in the integral drive axle bridge tube and the drive wheels installed at both ends.

[0043] The multi-drive axle power transmission structure of the new multi-purpose shaft transmission system of the all-terrain vehicle is extended to be applied to the special all-terrain amphibious vehicle or wheeled armored vehicle with an integral four-drive axle and 8x8 drive wheels, and its structural features are as follows: the front axle of the double-axle structure is a four-wheel drive integral drive axle double front axle structure, wherein the first integral drive axle is composed of a tubular bridge tube with a suitable length and an elliptical drive axle gear (or sprocket chain) transmission box shell installed at the left end of the first integral drive axle tube to form an integral drive axle shell, and the same second integral drive axle is a double front axle structure composed of a tubular bridge tube with a suitable length and an elliptical drive axle gear or sprocket chain transmission box shell installed at the right end of the second integral drive axle tube to form an integral drive axle shell, and a new multi-purpose shaft transmission box body is shared between the first set of integral drive axles and the second set of integral drive axles of the two sets of front axles driven by the double axle.

[0044] The left side universal joint output shaft bevel gear bearing seat and the right side universal joint output shaft bevel gear bearing seat of the universal joint output shaft bevel gear right-angle transmission box housing of the first set of new multi-purpose shaft transmission box body and the universal joint output shaft bevel gear bearing seat and the universal joint output spline shaft extending to the left and right sides are arranged horizontally and installed at the front chassis position of the body of an all-terrain amphibious vehicle or a wheeled armored vehicle, in the middle position of the first integral drive axle and the second integral drive axle, and are installed with the vehicle body chassis to form an integral structure. At the same time, the left side universal joint output shaft bearing seat and the right side universal joint output shaft bearing seat of the universal joint output shaft bevel gear right-angle transmission box housing and the universal joint output spline shaft extending to the left and right sides maintain an installation position parallel to each other with the first group of integral drive axles and the second group of integral drive axles of the dual-drive front axle.

[0045] The first set of new multi-purpose shaft transmission box body arranged horizontally and installed on the chassis of an all-terrain amphibious vehicle or a wheeled armored vehicle is a universal joint output shaft bevel gear right-angle transmission box housing. The universal joint output spline shaft extending outward from the left end outside the universal joint output shaft bearing seat is installed with the left end constant velocity ball cage universal joint outer ball cage. At the same time, the universal joint output spline shaft extending outward from the right end outside the universal joint output shaft bearing seat is installed with the right end constant velocity ball cage universal joint outer ball cage and fastened with a center screw.

[0046] At the same time, a transmission half-shaft extending laterally to the left is inserted into the center spline hole of the inner ball cage in the outer ball cage of the constant velocity ball cage universal joint installed on the left end of the universal joint output spline shaft. The transmission half-shaft outputting power to the left installed with the inner ball cage extends laterally to the left to the first integral drive axle of the dual-drive front axle installed on the left side of the drive axle gear or sprocket chain on the left side of the input shaft bearing seat outside the transmission box housing. The outer ball cage of the constant velocity ball cage universal joint with telescopic function installed on the right side and extending to the right is engaged with the center spline hole of the inner ball cage and transmits power.

[0047] The first integral drive axle gear or sprocket chain transmission box housing installed at the left end of the integral drive axle is in a horizontal installation position, and the universal joint and input spline shaft are in the installation position on the left and rear end of the first integral drive axle, so that the constant velocity ball cage universal joint outer ball cage with telescopic function installed to the right on the right input spline shaft outside the integral drive axle gear or sprocket chain transmission box housing is in a relative position with the constant velocity ball cage universal joint outer ball cage installed to the left on the left universal joint output spline shaft end outside the left universal joint output shaft bevel gear right angle transmission box housing of the first set of new multi-purpose shaft transmission box. Among them, the transmission half-shaft that outputs power to the left is preferably arranged horizontally and installed in the outer ball cage of the constant velocity ball cage universal joint with the end of the universal joint output spline shaft installed to the left on the left side outside the shell of the first set of new multi-purpose shaft transmission box universal joint output shaft bevel gear right-angle transmission box. At the same time, the transmission half-shaft installed in the outer ball cage of the constant velocity ball cage universal joint and the center spline hole of the inner ball cage is inserted into the outer ball cage of the constant velocity ball cage universal joint and extends horizontally to the left to the drive axle gear or sprocket chain welded on the left end of the first integral drive axle bridge tube. It is inside the outer ball cage of the constant velocity ball cage universal joint with telescopic function that extends to the right outside the input shaft bearing seat on the right side outside the transmission box shell, meshes with the center spline hole of the inner ball cage and transmits power.

[0048] At the same time, a transmission half-shaft extending laterally to the right is inserted into the center spline hole of the inner ball cage in the outer ball cage of the constant velocity ball cage universal joint installed on the right end of the universal joint output spline shaft on the right side of the first set of universal joint output shaft bevel gear right-angle transmission box housing. The transmission half-shaft extending laterally to the right is installed in the inner ball cage installed on the left end of the transmission half-shaft, and the constant velocity ball cage universal joint outer ball cage installed on the right end of the universal joint output spline shaft engages with each other. The transmission half-shaft installed with the inner ball cage for transmitting power to the right extends laterally to the right to the drive axle gear or sprocket chain installed on the right side of the second integral drive axle of the dual-drive front axle. The constant velocity ball cage universal joint outer ball cage with telescopic function installed on the left side outside the input shaft bearing seat outside the transmission box housing engages with the center spline hole of the inner ball cage and transmits power.

[0049] The second integral drive axle gear or sprocket chain transmission box housing installed at the right end of the integral drive axle is in a horizontal installation position, and the universal joint and input spline shaft are in the installation position on the right side and front end of the second integral drive axle, so that the constant velocity ball cage universal joint outer ball cage with telescopic function installed to the left on the left input spline shaft outside the integral drive axle gear or sprocket chain transmission box housing is in a relative position with the constant velocity ball cage universal joint outer ball cage installed to the right on the right universal joint output spline shaft end outside the right universal joint output shaft bevel gear right angle transmission box housing of the first set of new multi-purpose shaft transmission box. At the same time, the transmission half-shaft that outputs power to the right is preferably arranged horizontally and installed in the outer ball cage of the constant velocity ball cage universal joint with the end of the universal joint output spline shaft installed to the right on the right side outside the first set of new multi-purpose shaft transmission box body universal joint output shaft bevel gear right-angle transmission box housing. At the same time, the transmission half-shaft installed in the outer ball cage of the constant velocity ball cage universal joint and the center spline hole of the inner ball cage penetrates and extends horizontally to the right to the drive axle gear (or sprocket chain) welded on the right end of the second integral drive axle bridge tube. The input shaft bearing seat on the left side outside the transmission box housing extends to the left outside the outer ball cage of the constant velocity ball cage universal joint with a telescopic function, which meshes with the inner ball cage and transmits power.

[0050] When the universal joint output shaft bevel gear right-angle transmission case housing of the first set of new multi-purpose shaft transmission box is used to drive the first integral drive axle and the second integral drive axle of the two sets of double front axles to transmit power, an inter-axle differential can be optionally installed in the middle position of the left and right sets of constant velocity ball joint output spline shafts in the universal joint output shaft bevel gear right-angle transmission case housing of the first set of new multi-purpose shaft transmission box, so that a differential function is provided between the constant velocity ball joint universal joint installed at the left end of the left universal joint output spline shaft and the transmission half-shaft that transmits power to the left and the constant velocity ball joint universal joint installed at the right end of the right universal joint output spline shaft and the transmission half-shaft that transmits power to the right.

[0051] The integral drive axle is expanded and applied to the transmission system of the four-drive axle 8x8 drive wheel. The matching new multi-purpose shaft transmission box is applied to the double rear axle of the integral drive axle to transmit power. The rear axle of the double-bridge structure is a four-wheel drive integral drive axle double rear axle structure, wherein the third integral drive axle is composed of a tubular bridge tube with a suitable length and an elliptical drive axle gear or sprocket chain transmission case installed at the left end of the third integral drive axle tube to form an integral drive axle shell. The same fourth integral drive axle is composed of a tubular bridge tube with a suitable length and an elliptical drive axle gear or sprocket chain transmission case installed at the right end of the fourth integral drive axle tube to form an integral drive axle shell. The second set of new multi-purpose shaft transmission box is shared between the third set of integral drive axles and the fourth integral drive axles of the two sets of rear axles of the double-bridge drive.

[0052] The left and right universal joint output shaft bearing seats of the universal joint output shaft bevel gear right-angle transmission case housing of the second set of new multi-purpose shaft transmission case and the universal joint output shaft spline shaft extending to the left and right are arranged horizontally and installed on the rear chassis position of the all-terrain amphibious vehicle or wheeled armored vehicle, located in the middle position of the third integral drive axle and the fourth integral drive axle, and installed with the vehicle chassis to form an integral structure. At the same time, the left and right universal joint output shaft bearing seats of the universal joint output shaft bevel gear right-angle transmission case housing and the universal joint output shaft spline shaft extending to the left and right are maintained in a parallel installation position with the third and fourth groups of integral drive axles of the dual-drive rear axle.

[0053] The second set of new multi-purpose shaft transmission box body is laterally arranged and installed on the chassis of an all-terrain amphibious vehicle or a wheeled armored vehicle. The universal joint output shaft bevel gear right-angle transmission box housing is installed on the left side universal joint output shaft bearing seat and the universal joint output spline shaft extending outward to the left end. The left end constant velocity ball cage universal joint outer ball cage is also installed on the right end universal joint output spline shaft extending outward to the right end outside the right side universal joint output shaft bearing seat and is fastened with a center screw.

[0054] At the same time, a transmission half-shaft extending laterally to the left is inserted into the center spline hole of the inner ball cage in the outer ball cage of the constant velocity ball cage universal joint installed on the left end of the universal joint output spline shaft on the left side of the second set of universal joint output shaft bevel gear right-angle transmission box housing. The transmission half-shaft extending laterally to the left is installed in the inner ball cage installed on the right side of the universal joint output spline shaft, wherein the inner ball cage installed on the right side end of the transmission half-shaft is meshed with the constant velocity ball cage universal joint outer ball cage installed on the left end of the universal joint output spline shaft, and the transmission half-shaft outputting power to the left installed with the inner ball cage extends laterally to the left to the drive axle gear or sprocket chain installed on the left side of the third integral drive axle of the dual-drive rear axle. The constant velocity ball cage universal joint outer ball cage with telescopic function installed on the right side outside the input shaft bearing seat outside the transmission box housing is meshed with the center spline hole of the inner ball cage and transmits power.

[0055] The third set of integral drive axle gear or sprocket chain transmission box housing installed at the left end of the integral drive axle is in a horizontal installation position, and the universal joint and input spline shaft are in the installation position on the left and rear end of the third integral drive axle, so that the constant velocity ball cage universal joint outer ball cage with telescopic function installed to the right on the right input spline shaft outside the integral drive axle gear or sprocket chain transmission box housing is in a relative position with the constant velocity ball cage universal joint outer ball cage installed to the left on the left side of the universal joint output spline shaft end outside the left side universal joint output shaft bevel gear right angle transmission box housing of the second set of new multi-purpose shaft transmission box. Among them, the transmission half-shaft that outputs power to the left is preferably arranged horizontally and installed in the universal joint output shaft bevel gear right-angle transmission box shell of the second set of new multi-purpose shaft transmission box body. The universal joint output spline shaft end is installed to the left in the constant velocity ball cage universal joint outer ball cage. At the same time, the transmission half-shaft installed in the constant velocity ball cage universal joint outer ball cage and the center spline hole of the inner ball cage penetrates and extends horizontally to the left to the drive axle gear or sprocket chain welded on the left end of the third integral drive axle bridge tube. The input shaft bearing seat on the right side of the transmission box shell extends to the right. The constant velocity ball cage universal joint outer ball cage with telescopic function is engaged with the center spline hole of the inner ball cage and transmits power.

[0056] At the same time, a transmission half-shaft extending laterally to the right is inserted into the center spline hole of the inner ball cage in the outer ball cage of the constant velocity ball cage universal joint installed on the right end of the universal joint output spline shaft on the right side of the second set of universal joint output shaft bevel gear right-angle transmission box housing. The transmission half-shaft extending laterally to the right is installed in the inner ball cage installed on the left end of the transmission half-shaft, and the constant velocity ball cage universal joint outer ball cage installed on the right end of the universal joint output spline shaft engages with each other. The transmission half-shaft installed with the inner ball cage for transmitting power to the right extends laterally to the right to the drive axle gear or sprocket chain installed on the right side of the fourth integral drive axle of the dual-drive rear axle. The constant velocity ball cage universal joint outer ball cage with telescopic function installed on the left side outside the input shaft bearing seat outside the transmission box housing engages with the center spline hole of the inner ball cage and transmits power.

[0057] The fourth integral drive axle gear or sprocket chain transmission case housing mounted on the right end of the integral drive axle is installed in a horizontal position, with the universal joint and input spline shaft located on the right and front end of the fourth integral drive axle. The outer constant velocity ball joint (CVJ) with telescopic function, mounted to the left on the left input spline shaft outside the integral drive axle gear or sprocket chain transmission case housing, is positioned opposite the outer constant velocity ball joint (CVJ) universal joint, mounted to the right on the right end of the universal joint output spline shaft outside the right universal joint output shaft bevel gear right-angle transmission case housing of the second new multi-purpose shaft transmission case. At the same time, the transmission half-shaft that outputs power to the right is preferably arranged horizontally and installed in the outer ball cage of the constant velocity ball cage universal joint on the right side outside the second set of new multi-purpose shaft transmission box universal joint output shaft bevel gear right-angle transmission box shell. At the same time, the transmission half-shaft is installed in the outer ball cage of the constant velocity ball cage universal joint and the center spline hole of the inner ball cage, and extends horizontally to the right to the drive axle gear (or sprocket chain) welded on the right end of the fourth integral drive axle bridge tube. The input shaft bearing seat on the left side of the transmission box shell extends to the left, and the outer ball cage of the constant velocity ball cage universal joint with telescopic function is engaged with the center spline hole of the inner ball cage to transmit power.

[0058] When the universal joint output shaft bevel gear right-angle transmission case housing of the second set of new multi-purpose shaft transmission box is used to drive the third integral drive axle and the fourth integral drive axle of two sets of double rear axle drive axles to transmit power, an inter-axle differential can be optionally installed in the middle position of the left and right sets of constant velocity ball joint output spline shafts in the universal joint output shaft bevel gear right-angle transmission case housing of the second set of new multi-purpose shaft transmission box, so that a differential function is provided between the constant velocity ball joint universal joint installed at the left end of the left universal joint output spline shaft and the transmission half-shaft that transmits power to the left and the constant velocity ball joint universal joint installed at the right end of the right universal joint output spline shaft and the transmission half-shaft that transmits power to the right.

[0059] When the use of the integral drive axle is expanded and applied to all-terrain amphibious vehicles or wheeled armored vehicles to transmit power under the working conditions of four drive axles, since the four drive axles are of the same integral drive axle structure and do not have the steering function of wheel hub tire deflection, an inter-axle differential combination must be installed between the left and right drive axle half-shafts installed in each set of integral bridge tubes in the first set of integral drive axle gears or sprocket chain transmission box housing, the second set of integral drive axle gears or sprocket chain transmission box housing, the third set of integral drive axle gears or sprocket chain transmission box housing, and the fourth set of integral drive axle gears or sprocket chain transmission box housing, so that a differential function can be provided between the left and right drive axle half-shafts installed on the inter-axle differential in the first set of integral drive axles, the second set of integral drive axles, the third set of integral drive axles, and the fourth set of integral drive axles and the drive wheels installed at the ends of the two half-shafts, so that a speed difference can be generated between the coaxial wheel pairs on the left and right sides of the vehicle chassis, so that the vehicle can generate tire slip and steering functions.

[0060] At the same time, the vehicle body of the four-wheel drive integral drive axle 8×8 drive wheel structure is equipped with left and right brake steering systems. The four integral drive axles installed on the vehicle chassis include the first integral drive axle, the second integral drive axle, the third integral drive axle, and the fourth integral drive axle. The left brake system is installed on the left wheel hub of the same integral drive axle, and the right brake system is installed on the right wheel hub. When a moving vehicle uses the brake system on one side, the rotation speed of the drive wheel on one side of the vehicle body is reduced, and the drive wheel on the opposite side of the same axis accelerates the rotation speed of the drive axle half shaft and the drive wheel under the action of the differential, so that the drive wheels on both sides of the four integral drive axles have a speed difference at the same time, thereby realizing tire sliding steering or turning on the spot.

[0061] The multi-drive axle power transmission structure of the new multi-purpose shaft transmission system of the all-terrain vehicle is expanded and applied to the transmission structure of the three-axle drive 6x6 drive wheel and the four-axle drive 8x8 drive wheel structure. The front axle used for the double-axle structure is the first set of the new multi-purpose shaft transmission box body's universal joint output shaft bevel gear right-angle transmission box housing's left universal joint output shaft bearing seat and the right universal joint output shaft bearing seat must be in a horizontal position and arranged horizontally on the all-terrain amphibious vehicle or wheeled armored vehicle body chassis, so as to better arrange and install the universal joint and drive half-shaft to transmit power, but in order to obtain the power transmitted by the remote engine, the vertically installed second An input shaft bevel gear right-angle transmission case housing and a universal joint output shaft bevel gear right-angle transmission case housing of a new multi-purpose shaft transmission case are installed and fixed by rotating the intermediate transmission shaft support protection tube and the flange plate 90 degrees in the axial position of the intermediate transmission shaft, so that the input spline shaft in the input shaft bevel gear right-angle transmission case housing of the new multi-purpose shaft transmission case installed in a vertical position is in a longitudinal installation position, parallel to the longitudinal axis of the all-terrain amphibious vehicle or wheeled armored vehicle body, and has a transmission phase difference of 90 degrees with the universal joint output shaft bevel gear right-angle transmission case housing installed transversely at the chassis position of the all-terrain amphibious vehicle or wheeled armored vehicle body in the axial position of the intermediate transmission shaft.

[0062] Among them, the left side universal joint output shaft bearing seat and the right side universal joint output shaft bearing seat of the universal joint output shaft bevel gear right angle transmission box housing of the second set of new multi-purpose shaft transmission box body must be installed in a horizontal position and horizontally on the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle body, so as to better arrange and install the universal joint and the transmission half shaft to transmit power. However, in order to obtain the power transmitted by the remote engine, the input shaft bevel gear right angle transmission box housing of the second set of new multi-purpose shaft transmission box body installed in a vertical position and the universal joint output shaft bevel gear right angle transmission box housing must be installed in a horizontal position. The intermediate drive shaft support protection tube and the flange are rotated 90 degrees and installed and fixed in the axial position of the intermediate drive shaft, so that the input spline shaft of the bevel gear right-angle transmission box housing of the new multi-purpose shaft transmission box installed in the vertical position is in a longitudinal installation position, parallel to the longitudinal axis of the all-terrain amphibious vehicle or wheeled armored vehicle body, and has a transmission phase difference of 90 degrees with the universal joint output shaft bevel gear right-angle transmission box housing installed in the transverse position of the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle in the axial position of the intermediate drive shaft.

[0063] The matching rear axle of the double-axle structure is a four-wheel drive integral drive axle. The third set of new multi-purpose shaft transmission box is shared between the two sets of rear integral drive axles of the double rear axle structure. The left and right universal joint output shaft bearing seats of the universal joint output shaft bearing seats of the transmission box housing must be in a horizontal position and arranged horizontally on the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle to better arrange and install the universal joint and drive half-shaft to transmit power. However, in order to obtain the power transmitted by the remote engine, the input shaft bevel gear right-angle transmission box of the third set of new multi-purpose shaft transmission box installed in a vertical position must be installed. The housing and the universal joint output shaft bevel gear right-angle transmission box housing are installed and fixed by rotating the intermediate drive shaft support protection tube and the flange 90 degrees in the axial position of the intermediate drive shaft, so that the input spline shaft of the input shaft bevel gear right-angle transmission box housing of the new multi-purpose shaft transmission box installed in the vertical position is in a longitudinal installation position, parallel to the longitudinal axis of the all-terrain amphibious vehicle or wheeled armored vehicle body, and has a transmission phase difference of 90 degrees with the universal joint output shaft bevel gear right-angle transmission box housing installed in the transverse arrangement at the chassis position of the all-terrain amphibious vehicle or wheeled armored vehicle body in the axial position of the intermediate drive shaft.

[0064] Expanded integral drive axle is applied to the transmission structure of four-axle drive 8x8 drive wheel structure. The front axle of the double-axle structure is a four-wheel drive integral drive axle. The first set of new multi-purpose shaft transmission box body is shared between the two sets of front integral drive axles. The universal joint output shaft bevel gear right-angle transmission box housing's left universal joint output shaft bearing seat and the right universal joint output shaft bearing seat must be in a horizontal position and arranged horizontally on the all-terrain amphibious vehicle or wheeled armored vehicle body chassis to better arrange and install the universal joint and drive half-shaft to transmit power. However, in order to obtain the power transmitted by the remote engine, the first set of new multi-purpose shaft transmission box body installed in the vertical position must be installed. The input shaft bevel gear right angle transmission box housing and the universal joint output shaft bevel gear right angle transmission box housing are installed and fixed by rotating the intermediate transmission shaft support protection tube and the flange plate 90 degrees in the axial position of the intermediate transmission shaft, so that the input spline shaft in the input shaft bevel gear right angle transmission box housing of the new multi-purpose shaft transmission box installed in the vertical position is in a longitudinal installation position, parallel to the longitudinal axis of the all-terrain amphibious vehicle or wheeled armored vehicle body, and has a transmission phase difference of 90 degrees with the universal joint output shaft bevel gear right angle transmission box housing installed in the transverse arrangement at the chassis position of the all-terrain amphibious vehicle or wheeled armored vehicle body in the axial position of the intermediate transmission shaft.

[0065] The rear axle of the matching double-axle structure is a four-wheel drive integral drive axle. The second set of new multi-purpose shaft transmission box shared by the two sets of rear integral drive axles of the double rear axle structure, the universal joint output shaft bevel gear right-angle transmission box housing's left universal joint output shaft bearing seat and the right universal joint output shaft bearing seat must be in a horizontal position and arranged horizontally on the all-terrain amphibious vehicle or wheeled armored vehicle body chassis, in order to better arrange and install the universal joint and drive half-shaft to transmit power, but in order to obtain the power transmitted by the remote engine, the second set of new multi-purpose shaft transmission box input shaft bevel gear right-angle transmission installed in the vertical position must be The box housing and the universal joint output shaft bevel gear right-angle transmission box housing are installed and fixed by rotating the intermediate drive shaft support protection tube and the flange 90° in the axial position of the intermediate drive shaft, so that the input spline shaft of the new multi-purpose shaft transmission box installed in the vertical position and the input spline shaft in the bevel gear right-angle transmission box housing are in a longitudinal installation position, parallel to the longitudinal axis of the all-terrain amphibious vehicle or wheeled armored vehicle body, and have a transmission phase difference of 90° with the universal joint output shaft bevel gear right-angle transmission box housing installed transversely on the chassis position of the all-terrain amphibious vehicle or wheeled armored vehicle in the axial position of the intermediate drive shaft.

[0066] The multi-drive axle power transmission structure of the new multi-purpose axle transmission system of the all-terrain vehicle is applied to the new multi-purpose axle transmission box for transmitting power of the all-terrain amphibious vehicle or wheeled armored vehicle and must be installed in a vertical arrangement on the vehicle chassis; therefore, the front axle of the double-axle structure is a four-wheel drive independent suspension steering front double-axle structure, and the first set of new multi-purpose axle transmission boxes in a longitudinal installation position, the input shaft of the new multi-purpose axle transmission box, the input spline shaft of the bevel gear right-angle transmission box housing, and the drive shaft connected in series with the engine, as well as the drive shaft universal joint and other combined components are installed in the middle position inside the body chassis of the all-terrain amphibious vehicle or wheeled armored vehicle, and the second set of new multi-purpose axle transmission boxes in a longitudinal installation position, the input shaft of the new multi-purpose axle transmission box, the input spline shaft of the bevel gear right-angle transmission box housing, and the drive shaft connected in series with the engine, as well as the drive shaft universal joint and other combined components are installed in the middle position inside the body chassis of the all-terrain amphibious vehicle or wheeled armored vehicle.

[0067] The matching rear axle of the double-axle structure is a four-wheel drive integral drive axle. The third set of new multi-purpose shaft transmission box is shared by the two sets of rear integral drive axles of the double rear axle structure and is installed in a longitudinal position. The input shaft of the new multi-purpose shaft transmission box, the input spline shaft of the bevel gear right-angle transmission box shell, the drive shaft connected in series with the engine, and the drive shaft universal joint and other combined components are installed in the middle position inside the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle. The drive shaft and universal joint that output power from the engine end are connected in series to the input shaft spline shaft outside the shell of each set of longitudinally installed new multi-purpose shaft transmission box, so that each set of new multi-purpose shaft transmission box obtains rotational driving force. The chassis armor can effectively prevent explosive fragments and shock waves from damaging the internal transmission system of the vehicle chassis. At the same time, the first set of universal joint output shaft bevel gear right-angle transmission box body of the new multi-purpose shaft transmission box installed on the outside of the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle, the universal joint transmission half shaft installed on the left side and the universal joint transmission half shaft installed on the right side, and the matching second set of universal joint output shaft bevel gear right-angle transmission box body, the universal joint transmission half shaft installed on the left side and the universal joint transmission half shaft installed on the right side, and the third set of universal joint output shaft bevel gear right-angle transmission box body, the universal joint transmission half shaft installed on the left side and the universal joint transmission half shaft installed on the right side, and the matching third integral drive axle and fourth integral drive axle and other combined components are made of high-strength alloy material with large redundancy design to improve the resistance to destruction of explosive fragments and shock waves, thereby improving the battlefield survivability of the all-terrain amphibious vehicle or wheeled armored vehicle to maintain rapid movement.

[0068] The expanded integrated drive axle is used in the transmission structure of a four-axle drive 8x8 drive wheel configuration. The front axle of the dual-axle structure is a four-wheel drive integrated drive axle. The first set of new multi-purpose shaft transmission cases, including the input shaft, bevel gear, right-angle transmission case housing, input shaft spline shaft, and the drive shaft connected in series with the engine, as well as the drive shaft universal joint and the terminal output shaft universal joint, are installed in the center of the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle. The rear axle of the dual-axle structure is a four-wheel drive integrated drive axle. The second set of new multi-purpose shaft transmission cases, including the input shaft, bevel gear, right-angle transmission case housing, input shaft spline shaft, intermediate drive shaft, and drive shaft universal joint, are installed in the center of the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle.

[0069] The engine terminal output drive shaft, which is installed longitudinally parallel to the vehicle body's longitudinal axis, is connected to the input spline shaft of the drive shaft universal joint. The output spline shaft, which is horizontally positioned and extends longitudinally backward at the rear side of the engine drive shaft universal joint, penetrates into the input shaft bevel gear right-angle transmission box housing of the first set of new multi-purpose shaft transmission boxes that are installed side by side and coaxially in a longitudinal position. The engine intermediate drive shaft, which is installed longitudinally parallel to the vehicle body's longitudinal axis, is connected to the output spline shaft of the output shaft universal joint at the end of the input shaft bevel gear right-angle transmission box housing of the first set of new multi-purpose shaft transmission boxes. At the same time, the engine intermediate drive shaft transmits power to the output spline shaft, which is horizontally positioned and extends longitudinally backward at the rear side of the coaxial universal joint, and penetrates into the input shaft bevel gear right-angle transmission box housing of the second set of new multi-purpose shaft transmission boxes that are installed side by side and coaxially in a longitudinal position and transmits power. The chassis armor can effectively prevent the shock wave of explosive fragments from damaging the internal transmission system of the vehicle chassis.

[0070] At the same time, the universal joint output shaft bevel gear right-angle transmission box body of the first new multi-purpose shaft transmission box installed on the outside of the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle, the universal joint transmission half-shaft installed on the left side and the universal joint transmission half-shaft installed on the right side, and the matching first integral drive axle and second integral drive axle combination components, as well as the universal joint output shaft bevel gear right-angle transmission box body of the second new multi-purpose shaft transmission box body, the universal joint transmission half-shaft installed on the left side and the universal joint transmission half-shaft installed on the right side, and the matching third integral drive axle and fourth integral drive axle and other combination components are made of high-strength alloy material with large redundancy design to improve the resistance to destructive ability against the shock wave of explosive fragments, thereby improving the battlefield survivability of the all-terrain amphibious vehicle or wheeled armored vehicle to maintain rapid movement.

[0071] The constant velocity ball joint used in the novel multi-purpose shaft transmission system of the present invention serves as an example. In this transmission system, it is not specifically a constant velocity ball joint. In order to reduce the actual production and use costs, the constant velocity ball joint used as an example in the present invention can be replaced by a cross-axis universal joint or a flexible universal joint coupling, and other types of universal joints to transmit power.

[0072] The novel multi-purpose shaft transmission system of the present invention is extended to be applied to the structural mode of transmitting power of three-drive axles 6×6 drive wheels and four-drive axles 8×8 drive wheels to serve as a demonstration. In the vehicle body transmission system, it is not specific to three-drive axles and four-drive axles to transmit power. In order to meet the special vehicles' higher requirements for off-road performance and carrying capacity, multiple sets of novel multi-purpose shaft transmission boxes can be matched with multiple groups of independent suspension clevis shaft steering knuckle transmission systems and multiple groups of integral drive axle transmission systems to be arranged and installed on the chassis position of special vehicles with long bodies, and the power can be transmitted in a reasonable matching mode.

[0073] In the present invention, when the integral drive axle used in conjunction with the new multi-purpose shaft transmission system transmits power, the three sets of transmission gears or sprocket groups installed in the integral drive axle gear or sprocket chain transmission box housing serve as a demonstration. In this transmission system, there are not specifically three sets of transmission gears or sprocket combinations. During production and use, the number of transmission gears or sprocket groups installed in the integral drive axle gear or sprocket chain transmission box housing can be increased or decreased according to actual working conditions to achieve the best transmission matching.

[0074] Compared with the prior art, the above technical solution has the following beneficial effects:

[0075] The advantages of applying the multi-drive axle power transmission structure of the new multi-purpose shaft transmission system of an all-terrain vehicle to the transmission structure of a special all-terrain amphibious vehicle or wheeled armored vehicle with four-drive axles and 8x8 drive wheels are:

[0076] Wide range of uses: This transmission structure can be applied to the multi-drive axle transmission power of all-terrain amphibious vehicles or wheeled armored vehicles, and can be applied to the transmission of driving force of small multi-drive axle all-terrain karts, UTVs, ATVs, large multi-drive axle missile transport vehicles, and special heavy-duty transport equipment with multi-drive axles;

[0077] When used in all-terrain amphibious vehicles or wheeled armored vehicles to transmit power through multiple drive axles, each drive axle can be equipped with air springs, coil springs, or leaf springs. This can effectively improve the smoothness of all-terrain amphibious vehicles and wheeled armored vehicles when traveling at high speeds on off-road surfaces, and enhance the comfort of the driver and passengers.

[0078] Since the drive axle gear or sprocket chain transmission box housing is installed at the end of the integral drive axle bridge tube, the integral drive axle equipped with two sets of left and right drive wheels can cross higher obstacles. At the same time, the power transmission system using multiple drive axles greatly improves the off-road performance of all-terrain amphibious vehicles or wheeled armored vehicles in complex terrain.

[0079] The new multi-purpose shaft transmission housing used to transmit power to all-terrain amphibious vehicles or wheeled armored vehicles must be installed vertically within the vehicle chassis. Multiple sets of these multi-purpose shaft transmission housings, including the input shaft bevel gear right-angle transmission housing and the universal joints connected in series with the engine, are installed within the chassis. Chassis armor effectively protects the transmission system from explosive fragments and shock waves.

[0080] At the same time, the universal joint output shaft, bevel gear right-angle transmission box housing, universal joint transmission shaft assembly, integral drive axle and other combined components of the new multi-purpose shaft transmission box installed on the outside of the all-terrain amphibious vehicle or wheeled armored vehicle chassis are made of high-strength alloy material with large redundancy design to improve the transmission components' resistance to explosive fragments and shock waves, thereby improving the all-terrain amphibious vehicle or wheeled armored vehicle's battlefield survivability to maintain rapid movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] Figure 1 is a cross-sectional view of the new multi-purpose shaft transmission box

[0082] FIG2 is a top view of an 8x8 drive wheel four-drive axle with independent suspension, a double-front-axle drive, a double-steering front axle, a matching integral drive axle, and a double rear axle combination;

[0083] FIG3 is a left side view of a four-axle 8x8 drive wheel system composed of four sets of integral drive axles;

[0084] FIG4 is a top view of the four-drive axle 8x8 drive wheels formed by the combination of four sets of integral drive axles.

[0085] As shown in the figure;

[0086] 100-Input shaft bevel gear right angle transmission case;

[0087] 101- New multi-purpose shaft transmission box input shaft bevel gear right angle transmission box housing input spline shaft;

[0088] 102-driving bevel gear;

[0089] 103-Input shaft bevel gear right angle transmission box input spline shaft large bearing seat driving bevel gear cylindrical housing;

[0090] 104-Input shaft bevel gear right angle transmission box driving bevel gear cylindrical housing small bearing seat cylindrical housing;

[0091] 105- driven bevel gear cylindrical housing;

[0092] 106-driven bevel gear installed at the end of the intermediate transmission shaft;

[0093] 107- flange of the cylindrical housing of the driven bevel gear bearing seat;

[0094] 108-Intermediate transmission shaft of the new multi-purpose shaft transmission box;

[0095] 109-Intermediate transmission shaft support protection tube of the new multi-purpose shaft transmission box;

[0096] 110- flange of the cylindrical housing of the bevel gear bearing seat at the end of the intermediate transmission shaft;

[0097] 111- driving bevel gear at the end of the intermediate transmission shaft;

[0098] 112-Universal joint output shaft bevel gear right angle transmission box;

[0099] 113-Universal joint output spline shaft;

[0100] 114-middle sliding gear sleeve;

[0101] 115-Universal joint output spline shaft, left side universal joint outer ball cage;

[0102] 116-Universal joint output spline shaft right side universal joint outer ball cage;

[0103] 117-right universal joint output shaft bearing seat;

[0104] 118-left universal joint output shaft bearing seat;

[0105] 119-left bevel driven gear;

[0106] 120-right bevel driven gear;

[0107] 1400 - Input shaft bevel gear right-angle transmission housing for the first new multi-purpose shaft transmission housing;

[0108] 1401- Input shaft bevel gear right-angle transmission housing of the second set of new multi-purpose shaft transmission housing;

[0109] 1402 - The first set of new multi-purpose shaft transmission housings for universal joint output shafts, bevel gear right-angle transmission housings;

[0110] 1403- Second set of new multi-purpose shaft transmission housings for universal joint output shaft bevel gear right angle transmission housings;

[0111] 1404- Input shaft bevel gear right angle transmission housing of the third set of new multi-purpose shaft transmission housings;

[0112] 1405- The second set of transmission half shafts outputting power to the left;

[0113] 1406- The second set of transmission half shafts outputting power to the right;

[0114] 1407-The third group of transmission half shafts outputting power to the left

[0115] 1408-The third set of transmission half shafts outputting power to the right

[0116] 1409-Third integral drive axle

[0117] 1410-Fourth integral drive axle

[0118] 1411-Third integral drive axle gear (or sprocket chain) transmission case housing

[0119] 1412-Fourth integral drive axle gear (or sprocket chain) transmission case housing

[0120] 1413-The third set of integral drive axle gear transmission case housing has a telescopic constant velocity ball joint on the right side;

[0121] 1414-The fourth set of integral drive axle gear transmission case has a telescopic constant velocity ball joint on the left side of the housing;

[0122] 1415-The first set of transmission half shafts outputting power to the right;

[0123] 1416-The third set of new multi-purpose shaft transmission housings for the universal joint output shaft bevel gear right angle transmission housing;

[0124] 1417-The first set of CV joints for the left independent suspension clevis shaft steering knuckle;

[0125] 1418-The first set of CV joints for the right independent suspension clevis axle steering knuckle;

[0126] 1419-Second set of CV joints for the left independent suspension clevis axle steering knuckle;

[0127] 1420-Second set of CV joints for the right independent suspension clevis shaft steering knuckle;

[0128] 1421-The first set of transmission half shafts outputting power to the left;

[0129] 1501 - Input shaft bevel gear right-angle transmission housing for the first new multi-purpose shaft transmission housing;

[0130] 1502 - The first set of new multi-purpose shaft transmission housings for universal joint output shafts, bevel gear right-angle transmission housings;

[0131] 1503- Input shaft bevel gear right-angle transmission housing of the second set of new multi-purpose shaft transmission housing;

[0132] 1504- second set of new multi-purpose shaft transmission housings for universal joint output shaft bevel gear right angle transmission housings;

[0133] 1505-Fourth integral drive axle gear (or sprocket chain) transmission case housing;

[0134] 1506-fourth set of integral drive axles;

[0135] 1507-the first set of integral drive axles;

[0136] 1508-First set of integral drive axle gear (or sprocket chain) transmission case housing;

[0137] 1509-The first set of integral drive axle gear transmission case housing has a telescopic constant velocity ball joint on the right side;

[0138] 1510-Second set of integral drive axles;

[0139] 1511-Second set of integral drive axle gear (or sprocket chain) transmission case housing;

[0140] 1512-The second set of integral drive axle gear transmission case has a telescopic constant velocity ball joint on the left side of the housing;

[0141] 1513-the third set of integral drive axles;

[0142] 1514-The third set of integral drive axle gear transmission box housing right side has telescopic function constant velocity ball joint universal joint

[0143] 1515-The fourth set of integral drive axle gear transmission case has a telescopic constant velocity ball joint on the left side of the housing;

[0144] 1516- The third set of integral drive axle gear (or sprocket chain) transmission case;

[0145] 1517-The first set of transmission half shafts outputting power to the left;

[0146] 1518-The first set of transmission half shafts outputting power to the right;

[0147] 1519-The second set of transmission half shafts outputting power to the left;

[0148] 1520- The second set of transmission half shafts outputting power to the right;

[0149] 1521-tandem engine output drive shaft;

[0150] 1522-input shaft universal joint;

[0151] 1523-output shaft universal joint;

[0152] 1524-Intermediate transmission shaft of the first and second sets of input shaft bevel gear right angle transmission case housing in series;

[0153] 1525-input shaft universal joint; Modes for Carrying Out the Invention

[0154] Example 1: The multi-drive axle power transmission structure of the new multi-purpose shaft transmission system of an all-terrain vehicle includes a new multi-purpose shaft transmission box body, which is characterized in that the new multi-purpose shaft transmission box body is composed of three parts: an input shaft bevel gear right-angle transmission box housing, an intermediate transmission shaft support protection tube, and a universal joint output shaft bevel gear right-angle transmission box housing, wherein the input shaft bevel gear right-angle transmission box housing 100 and the input spline shaft 101 and bevel transmission gear bearing combination 102 installed inside, an intermediate transmission shaft support protection tube 109 of suitable length and the intermediate transmission shaft 108 installed in the tube cavity and the driven bevel gear 106 combination, the universal joint output shaft bevel gear right-angle transmission box housing 112 and the output shaft bevel transmission gear bearing combination 111 installed inside, the left end driven bevel gear 119, the right end driven bevel gear 120 and the end universal joint output spline shaft 113 are combined. The input shaft bevel gear right angle transmission box housing 100 is composed of a plurality of cylindrical housings of different diameters. The input shaft bevel gear right angle transmission box housing 100 includes a driving bevel gear cylindrical housing (103) with a large bearing seat cylindrical housing, a small bearing seat cylindrical housing (104), and a driven bevel gear cylindrical housing (105) and a driven bevel gear bearing seat cylindrical housing (107) in a vertical direction, which are combined into an irregular input shaft bevel gear right angle transmission box shell. The driving bevel gear cylindrical housing 103 and the small bearing seat cylindrical housing 104 in the horizontal direction are welded together. In the vertical direction, the driven bevel gear cylindrical housing 105 is welded together with the driving bevel gear cylindrical housing 103 and the small bearing cylindrical housing 104 in the horizontal direction to form an integrated structure. The flange of the driving bevel gear cylindrical housing 103 in the horizontal direction is fastened with the flange of the large bearing seat cylindrical housing by bolts. In the vertical direction, the flange of the driven bevel gear bearing seat cylindrical housing 107 is fastened to the flange of the driven bevel gear cylindrical housing 105 with bolts, and the input shaft bevel gear right-angle transmission box housing 100 of the new multi-purpose shaft transmission box body is installed with an input shaft 101, an active bevel gear combination 102 and an intermediate transmission shaft 108, a driven bevel gear combination, the universal joint 1522 of the engine transmission shaft or the universal joint 1525 of the intermediate transmission shaft is in a horizontal position and the input spline shaft 101 extending longitudinally backward is inserted into the input shaft bevel gear right-angle transmission box housing 100 of the new multi-purpose shaft transmission box body which is installed side by side and coaxially in a longitudinal position, two sets of large bearings are installed in the horizontal input shaft large bearing seat 103 in the input shaft bevel gear right-angle transmission box housing 100, and an internal tooth spline sleeve that can mesh with the input spline shaft 101 is installed in the large bearing hole.And the inner end of the internal spline shaft sleeve of suitable length is welded with a bevel gear, that is, an integrated internal spline shaft bevel gear combination 102, and two sets of small bearings are installed in the small bearing seat 104 of the input shaft in the horizontal direction of the input shaft bevel gear right angle transmission box housing 100, and gaskets for adjusting the gap are installed on the left and right sides of the small bearing hole. The universal joint 1522 of the engine drive shaft or the universal joint 1525 of the intermediate drive shaft input spline shaft 101 penetrates the internal spline hole of the integrated internal spline shaft bevel gear 102 installed in the large bearing hole in the input shaft bevel gear right angle transmission box housing 100 and is connected with the internal spline hole of the integrated internal spline shaft bevel gear 102 The spline shaft portions of the input shaft 101 mesh with each other and transmit power, and the coaxial optical axis portion passes through the bearing holes of two sets of small bearings installed in the small bearing seat 104, and then a universal joint is installed on the spline shaft portion exposed at the end 104 of the input shaft bevel gear right angle transmission box housing and fastened with a large nut. The universal joint input spline shaft 101 at the front and rear ends of the output spline shaft 101 extending longitudinally forward and backward and connected to the intermediate transmission shaft is the input shaft coaxial spline shaft 101 of the input shaft bevel gear right angle transmission box housing 100;.

[0155] The intermediate transmission shaft support protection tube 109 of the novel multi-purpose shaft transmission box is composed of a plurality of cylindrical shell tubes of different diameters and lengths, including: a driven bevel gear bearing seat cylindrical shell 107 in the vertical direction, an intermediate transmission shaft support protection tube shell 109 of suitable length and an end input shaft bevel gear bearing seat cylindrical shell 110 of the intermediate transmission shaft 108 welded into a coaxial intermediate transmission shaft support protection tube 109. In the vertical direction, the flange of the driven bevel gear cylindrical housing 105 of the input shaft bevel gear right angle transmission box housing and the flange of the driven bevel gear bearing seat cylindrical housing 107 of the intermediate transmission shaft support protection tube are fastened with bolts, and in the vertical direction, the flange of the end input shaft bevel gear bearing seat cylindrical housing 110 of the intermediate transmission shaft support protection tube 109 and the flange of the end input shaft bevel gear bearing seat cylindrical housing 110 installed on the universal joint output shaft bevel gear right angle transmission box housing 112 are fastened with bolts, and the driven bevel gear 106 vertically installed in the input shaft bevel gear right angle transmission box housing and the input shaft 101 in the horizontal position is installed in the bearing seat 107 of the driven bevel gear cylindrical housing in the vertical direction, and the input shaft active bevel gear 102 installed on the horizontal input spline shaft 101 is connected to the intermediate transmission shaft 109 installed in the vertical direction. The intermediate transmission shaft driven bevel gear 106 meshes with each other and transmits power. An intermediate transmission shaft 108 of suitable length is installed in the tube cavity of the intermediate transmission shaft support protection tube 109 which is installed in a vertical direction with the horizontal input shaft 101. The two ends of the intermediate transmission shaft are spline shaft parts. The spline head part of the upper end penetrates into the input shaft bevel gear right angle transmission box housing 100 and the spline groove in the center spline hole of the driven bevel gear 106 which meshes with the input shaft active bevel gear 102 and meshes with each other. The spline head part of the lower end penetrates into the universal joint output shaft bevel gear right angle transmission box housing 112 and meshes with the spline groove in the center spline hole of the intermediate transmission shaft end input bevel gear 111 which meshes with the left output shaft driven bevel gear 119 and the right output shaft driven bevel gear 120 installed on the horizontal position universal joint output spline shaft 113 and transmits power.

[0156] The universal joint output shaft bevel gear right angle transmission box housing 112 of the novel multi-purpose shaft transmission box is composed of a plurality of cylindrical shells of different diameters, including: a left universal joint output shaft bearing seat cylindrical shell 118 and a right universal joint output shaft bearing seat cylindrical shell 117 in a horizontal position, a universal joint output shaft bevel gear cylindrical shell 112 in the middle position, and a vertically installed intermediate transmission shaft terminal output shaft bevel gear cylindrical shell 110, wherein the left and right sides of the universal joint output shaft bevel gear cylindrical shell 112 are combined. A left output shaft bearing seat cylindrical housing 118 and a right output shaft bearing seat cylindrical housing 117 are welded together. A set of intermediate transmission shaft terminal output shaft bevel gear cylindrical housings 110 are installed in the vertical direction of the universal joint output shaft bevel gear cylindrical housing 112. In the vertical direction, the flange of the intermediate transmission shaft terminal output shaft bevel gear bearing seat cylindrical housing 110 of the intermediate transmission shaft support protection tube 109 and the flange of the intermediate transmission shaft terminal output shaft bevel gear cylindrical housing 110 of the universal joint output shaft bevel gear right-angle transmission box housing 112 are fastened with bolts.

[0157] The output shaft bevel gear 111 at the end of the intermediate transmission shaft 108 installed in the vertical direction in the universal joint output shaft bevel gear right angle transmission box housing 112 is the input shaft bevel gear 111 meshing with the intermediate transmission shaft 108 in the universal joint output shaft bevel gear right angle transmission box housing 112. The input shaft bevel gear 111 meshing with the intermediate transmission shaft 108 and the bearing assembly are installed in the cylindrical housing 110 of the output shaft bevel gear bearing seat at the end of the intermediate transmission shaft, and mesh with the left output shaft driven bevel gear 119 and the right output shaft driven bevel gear 120 installed on the universal joint output spline shaft 113 in the horizontal position in the universal joint output shaft bevel gear right angle transmission box housing 112 to transmit power;

[0158] The output shaft bevel gear right-angle transmission case housing 112 of the universal joint output shaft is horizontally positioned in the output shaft bearing seat 118 on the left and the output shaft bearing seat 117 on the right. Two sets of bearings are installed in each of them. The left output shaft driven bevel gear 119 and the right output shaft driven bevel gear 120 are installed in the two sets of bearing holes respectively. The end universal joint output spline shaft 113 is inserted into the center hole of the left driven bevel gear 119 and the right driven bevel gear 120. The middle position of the left driven bevel gear 119 and the right driven bevel gear 120 installed on the end universal joint output spline shaft 113 is penetrated and installed on the end universal joint output spline shaft 113. The sliding gear sleeve 114 is inserted into the middle position of the left driven bevel gear 119 and the right driven bevel gear 120, wherein the center hole of the left driven bevel gear 119 and the right driven bevel gear 120 is a light hole structure without an internal tooth spline groove, and the end output spline shaft 113 is penetrated. The center hole of the inserted sliding gear sleeve 114 has an internal tooth spline groove structure and meshes with the universal joint output spline shaft 113. At the same time, the sliding gear sleeve can slide left and right, and meshes with the inner teeth of the driven bevel gear 119 on the left side or the driven bevel gear 120 on the right side of the end universal joint output spline shaft 113, thereby realizing the forward and reverse function of the end output shaft driven bevel gear and the output spline shaft, so that the vehicle has a forward and backward reverse gear function. At the same time, the end universal joint output spline shaft 113 installed in the left universal joint output shaft bearing seat 118 and the right universal joint output shaft bearing seat 117 in a horizontal position outside the universal joint output shaft bevel gear right-angle transmission box housing 112 is equipped with a left end constant velocity ball cage universal joint outer ball cage 115 and a right end constant velocity ball cage universal joint 116 at the left and right ends. Power is output to the left and right sides at the same time, providing convenient conditions for the subsequent arrangement and installation of the transmission half shaft.

[0159] The half-axle differential can be optionally installed in the universal joint output shaft bevel gear right angle transmission case housing 112, so that the left and right constant velocity ball cages and universal joint outer ball cages installed at the left and right ends of the universal joint output spline shaft 113 have a differential function. In the horizontal position of the universal joint output shaft bevel gear right angle transmission case housing 112, two sets of bearings are installed in the left universal joint output shaft bearing seat 118 and the right universal joint output shaft bearing seat 117 respectively. The boss edges on the left and right sides of the differential case are respectively installed in the two sets of bearing holes. A differential gear combination is installed in the differential case, and a driven bevel gear on the end output shaft differential is installed outside the differential case, and is installed on the universal joint. The input shaft bevel gear 111 of the right-angle transmission box housing 112 and the intermediate transmission shaft 108 mesh with each other. At the same time, the bearing holes installed in the left universal joint output shaft bearing seat 118 and the right universal joint output shaft bearing seat 117 are penetrated by the left and right transmission spline half shafts. The left and right transmission spline half shafts respectively penetrate the center spline holes of the left and right differential bevel gears installed in the differential housing and mesh with each other. The left end constant velocity ball cage universal joint 115 is installed at the end of the spline half shaft on the left, and the right end constant velocity ball cage universal joint 116 is installed at the end of the spline half shaft on the right, and power is transmitted to the left and right sides at the same time.

[0160] In the input shaft bevel gear right-angle transmission box housing 100 of the new multi-purpose shaft transmission box body, the driving bevel gear 102 installed on the input shaft 101 in the rotating horizontal position and in the middle position of the two sets of bearing seats is engaged with the driven bevel gear 106 at the input end position of the intermediate transmission shaft 108 installed in the vertical direction, and rotates to transmit power at the same time, changing the power output of the engine motor in the horizontal direction into vertical output power.

[0161] An intermediate transmission shaft 108, meshing with the driving bevel gear 102 and rotating simultaneously with the driven bevel gear 106 at the input end, is mounted within the bearing seat 105 at the input end of the vertical intermediate transmission shaft support protection tube 109. This simultaneously drives the intermediate transmission shaft 108, meshing with the splined shaft hole of the driven bevel gear 106 within the lumen of the intermediate transmission shaft support protection tube 109, to rotate simultaneously. The rotating intermediate transmission shaft 108 transmits power to the output shaft end bevel gear 111, meshing with the splined shaft of the intermediate transmission shaft 108, mounted within the bearing seat 110 at the end of the intermediate transmission shaft support protection tube. This in turn drives the driving bevel gear 111, mounted within the right-angle transmission box housing 112 of the universal joint output shaft bevel gear, to rotate simultaneously. The universal joint output shaft bevel gear right-angle transmission box housing 112 of the new multi-purpose shaft transmission box body is equipped with a universal joint output shaft spline shaft 113 in the output shaft bearing seats at the left and right ends in a horizontal position, and the left driven conical large gear 119 and the right driven conical large gear 120 installed in a horizontal position in the left and right output shaft bearing seats are meshed with each other and rotate simultaneously, driving the universal joint output shaft 113 to rotate and transmit power at the same time.

[0162] Since the central shaft holes of the left and right sets of driven bevel gears mounted on the universal joint output shaft bearing seat are of a smooth hole structure without an internal spline groove. They cannot mesh with the universal joint output spline shaft. Therefore, the left and right sets of driven bevel gears meshing with the active conical output gear 111 at the end of the intermediate transmission shaft 108 can rotate in both the forward and backward directions simultaneously. In the middle position of the left and right sets of driven bevel gears on the universal joint output spline shaft 113, the sliding groove inserted into the universal joint output spline shaft 113 is The center hole of the movable gear sleeve 114 has an internal tooth spline groove structure, and meshes with the spline groove of the universal joint output spline shaft 113. At the same time, the sliding sleeve 114 can slide to the left and right. When sliding to the left, it can mesh with the spline sleeve on the inner side of the driven conical large gear 119 at the left end. When sliding to the right, it can mesh with the spline sleeve on the inner side of the driven conical large gear 120 at the right end, thereby realizing the forward and reverse rotation function of the universal joint output spline shaft, so that the vehicle has a reverse gear function of moving forward and backward.

[0163] The integral drive axle used for multi-drive axle power transmission is the same integral drive axle, and an integral drive shaft is installed in the integral drive axle bridge tube. The drive axle gear or sprocket chain with an elliptical longitudinal section installed at the left or right end of the integral drive axle bridge tube) The transmission box shell is composed of a shell with a rectangular cross section and two ends of the rectangular shell are semi-cylindrical shell ends and an integral drive axle gear or sprocket chain transmission box shell with an elliptical longitudinal section with a suitable length, the interior of which is suitable for installing a transmission gear combination or a transmission sprocket combination. Taking the drive axle gear transmission box shell as an example, multiple groups of presses are installed in the drive axle gear transmission box shell. A transmission gear assembly arranged in sequence and meshing with each other, wherein symmetrical drive axle tube bearing seats are welded to the left and right inner walls of the integral drive axle tube end within the drive axle gear transmission case housing, an integral drive shaft is installed and passed through the symmetrical axle tube bearing seats, a first large gear for driving the drive shaft is installed on the integral drive shaft, bearings are mounted on the integral drive shaft on the left and right sides of the first large gear, and the bearings are simultaneously mounted in the symmetrical drive axle tube bearing seats on the left and right inner walls within the drive axle gear transmission case housing, maintaining the first large gear for driving the integral drive shaft in a transmission position intermediate between the left and right bearing seats of the drive axle tube. A symmetrical intermediate transmission gear assembly bearing seat is mounted on the left and right inner walls at a central position within the drive axle gear transmission case housing, bearings and an intermediate transmission gear shaft are mounted in the left and right bearing seats, and a second intermediate transmission gear is mounted on the intermediate transmission gear shaft at a position intermediate between the left and right sets of bearings. The drive axle gear transmission case housing has symmetrically mounted input shaft bearing seats on the left and right inner walls of the input shaft end. The splined shaft of the outer CVJ (Constant Velocity Joint) passes through the bearing holes mounted in the left and right bearing seats. The third input shaft drive pinion is mounted on the splined shaft of the outer CVJ (Constant Velocity Joint) between the two sets of bearing seats. The splined shaft of the outer CVJ passes through the bearing seat at the input shaft end of the drive axle gear transmission case housing and is secured with a nut at the protruding portion. The left and right sets of bearings are installed in the bearing seats at the left and right ends of the integral drive axle bridge tube, which are used to fix the integral drive shaft installed in the tube cavity of the integral drive axle bridge tube. There are spline teeth at both ends of the integral drive shaft, which can be used to install flanges for fixing wheel hub tires and flanges for fixing brake discs, and the protruding parts of the flanges at both ends of the integral drive shaft are fastened with nuts. Longitudinal and transverse push-pull rod supports, shock absorber spring supports, brake pump supports and other accessories are also welded on the outside of the integral drive axle bridge tube to control the movement posture of the integral drive axle.

[0164] In order to expand the applicability of the integral drive axle, the first transmission gear installed on the integral drive shaft in the integral drive axle gear transmission box housing can be replaced with a differential drive gear assembly with differential function according to the needs of vehicle use, and the integral drive shaft installed in the integral drive axle bridge tube can be replaced with the left and right drive axle half shafts that are suitable for the differential assembly. Its characteristics are: a large gear combination with a differential drive is installed in the drive axle gear transmission case housing, in the middle position of the left and right symmetrical bridge tube bearing seats, the boss edges on the left and right sides of the differential case are respectively embedded in the left and right bridge tube bearing seats in the drive axle gear transmission case housing, a differential bevel gear combination is installed in the differential case, the spline shafts of the left and right drive axle half shafts inserted into the left and right ends of the integral drive axle bridge tube are respectively inserted into the center spline shaft holes of the left and right differential bevel gears in the differential case and mesh with each other to transmit power, and bearings are installed in the bearing seats at the left and right ends of the integral drive axle bridge tube to fix the left and right drive axle half shafts so that the left and right drive axle half shafts have a differential function.

[0165] The drive sprocket and chain assembly within the integrated drive axle sprocket and chain transmission case is an improved version of the drive gear structure within the integrated drive axle gear transmission case. The first large gear mounted on the integrated drive shaft between the two symmetrical left and right sets of drive axle tube bearings within the integrated drive axle gear transmission case is replaced with a first large sprocket. The second intermediate gear mounted on the intermediate gear shaft within the integrated drive axle gear transmission case is replaced with an intermediate chain guide pulley. The third small gear mounted on the input shaft between the two symmetrical left and right sets of input shaft bearings within the integrated drive axle gear transmission case is replaced with a third small sprocket. A transmission chain meshes and transmits power between the drive sprockets, while the intermediate chain guide pulley assists the chain in smooth operation. The integrated drive axle sprocket and chain transmission case and the integrated drive axle gear transmission case have the same appearance, installation location, and function, and the shafts within the transmission case have the same installation location.

[0166] The transmission structure characteristics of the special all-terrain amphibious vehicle or wheeled armored vehicle with four-drive axle 8x8 drive wheels are: the multi-drive axle power transmission structure of the all-terrain vehicle's new multi-purpose axle transmission system; the front axle of the double-axle structure is a front double-axle structure with four-wheel drive independent suspension steering; when cooperating with the front and rear two sets of independent suspension clevis axle steering knuckles to transmit power, the left and right clevis axle steering knuckles installed on the left and right sides of the all-terrain amphibious vehicle, wheeled armored vehicle, etc. and coaxial are connected to the frame through a preferred connection method such as double A-type support arms, multi-link trailing arms or longitudinal swing arms.

[0167] Taking the first set of independent suspension clevis steering knuckle power transmission as an example, the first set of new multi-purpose shaft transmission box body assembled in the front part of the vehicle body, the universal joint output shaft bevel gear right-angle transmission box housing 1402 and the transmission half shaft 1421 for transmitting power to the left, the first set of independent suspension clevis steering knuckle on the left side of the vehicle body, the constant velocity ball cage universal joint 1417 and the transmission half shaft 1415 for transmitting power to the right, and the first set of independent suspension clevis steering knuckle on the right side of the vehicle body constitute the first set of independent suspension steering front axle structure. The constant velocity ball joint universal joint 1417 of the left side of the first independent suspension and the constant velocity ball joint universal joint 1418 of the right side of the first independent suspension are installed in the center holes of the left and right coaxial claw shaft steering knuckles on the left and right sides of the vehicle body and connected to the claw shaft steering knuckle with the vehicle body through double A-type support arms, and are arranged and installed on the left and right sides of the first drive shaft at the front of the vehicle body of an all-terrain amphibious vehicle, a wheeled armored vehicle, etc. At the same time, the constant velocity ball joint universal joint 1417 of the left side of the claw shaft steering knuckle and the constant velocity ball joint universal joint 1418 of the right side of the claw shaft steering knuckle are installed in the center holes of the left and right coaxial claw shaft steering knuckles on the left and right sides of the vehicle body. The center lines of the two coaxial clevis shaft steering knuckles of the speed ball cage universal joint 1418 are located at the left side universal joint output shaft bearing seat 118 and the right side universal joint output shaft bearing seat 117 of the first set of universal joint output shaft bevel gear right angle transmission box housing 1402 installed into an integral structure with the vehicle body and the lower part of the vehicle body, and there is a sufficiently long travel distance between the center lines of the two coaxial left and right clevis shaft steering knuckles' constant velocity ball cage universal joints 1417 and the right clevis shaft steering knuckle's constant velocity ball cage universal joints 1418 and the vehicle chassis.

[0168] When the two sets of new multi-purpose shaft transmission boxes in this scheme are used for independent suspension clevis shaft steering knuckles, the left side universal joint output shaft bearing seat 118 and the right side universal joint output shaft bearing seat 117 of the universal joint output shaft bevel gear right angle transmission box housing 1402 of the first set of new multi-purpose shaft transmission box 1400 and the universal joint output spline shaft 113 extending to the left and right sides are arranged horizontally and installed in the middle position of the first group of independent suspension drive axle body at the first drive axle position at the front of the all-terrain amphibious vehicle or wheeled armored vehicle body, and are located in the middle position of the constant velocity ball cage universal joint 1417 and the left side transmission half shaft 1421 of the left clevis shaft steering knuckle and the constant velocity ball cage universal joint 1418 and the right side transmission half shaft 1415 of the right clevis shaft steering knuckle installed on the left and right sides of the vehicle body, and are installed with the vehicle body chassis to form an integral structure.

[0169] The left end of the universal joint output spline shaft 113 on the left side of the universal joint output shaft bearing seat 118 of the first set of universal joint output shaft bevel gear right angle transmission box housing 1402 which is laterally arranged and installed at the first drive axle position on the vehicle body chassis is installed with the left end of the universal joint output spline shaft 113 on the left side and fastened with a center screw. A transmission half-shaft 1421 extending laterally to the left is installed through the center spline hole of the inner ball cage in the left constant velocity ball cage outer ball cage 115 installed at the left end of the universal joint output spline shaft 113 of the first set of universal joint output shaft bevel gear right-angle transmission box housing 1402. The inner ball cage installed at the right end of the transmission half-shaft engages with the constant velocity ball cage outer ball cage 115. The transmission half-shaft 1421 that transmits power to the left and is installed through the center spline hole of the inner ball cage extends laterally to the left to the constant velocity ball cage outer ball cage 1417 with telescopic function installed to the right in the steering knuckle shaft hole of the independent suspension clevis shaft on the left side of the vehicle body, and the left end of the transmission half-shaft 1421 engages with the center spline hole of the inner ball cage to transmit power.

[0170] The right end of the universal joint output spline shaft 113 on the right side of the universal joint output shaft bearing seat 117 of the first set of universal joint output shaft bevel gear right angle transmission box housing 1402 which is horizontally arranged and installed at the first drive axle position on the vehicle body chassis is also installed with the right end of the universal joint output spline shaft 113 which is fastened with a center screw. A transmission half-shaft 1415 extending laterally to the right is installed through the center spline hole of the inner ball cage in the right side constant velocity ball cage universal joint outer ball cage 116 installed at the right end of the universal joint output spline shaft 113 of the first set of universal joint output shaft bevel gear right-angle transmission box housing 1402. The inner ball cage installed at the left end of the transmission half-shaft is meshed with the constant velocity ball cage universal joint outer ball cage 116. The transmission half-shaft 1415 that transmits power to the right and is installed through the center spline hole of the inner ball cage extends laterally to the right to the constant velocity ball cage universal joint outer ball cage 1418 with telescopic function installed to the left in the steering knuckle shaft hole of the independent suspension clevis shaft on the right side of the vehicle body, and the right end of the transmission half-shaft 1415 is meshed with the center spline hole of the inner ball cage to transmit power.

[0171] Taking the second set of independent suspension clevis shaft steering knuckle power transmission as an example, the second set of new multi-purpose shaft transmission box body assembled in the front part of the vehicle body, the universal joint output shaft bevel gear right-angle transmission box housing 1403 and the transmission half shaft 1405 for transmitting power to the left, the second set of independent suspension clevis shaft steering knuckle on the left side of the vehicle body, the constant velocity ball cage universal joint 1419 and the transmission half shaft 1406 for transmitting power to the right, and the second set of independent suspension clevis shaft steering knuckle on the right side of the vehicle body form the second set of independent suspension steering double front axle structure. The constant velocity ball joint 1419 of the left side of the second independent suspension and the constant velocity ball joint 1420 of the right side of the second independent suspension are installed in the center holes of the left and right coaxial steering knuckles of the two independent suspensions and connected to the vehicle body through double A-type support arms. The two independent suspensions are arranged and installed on the left and right sides of the second drive shaft at the front of the vehicle body of an all-terrain amphibious vehicle, a wheeled armored vehicle, etc. At the same time, the constant velocity ball joint 1419 of the left side of the steering knuckle and the constant velocity ball joint of the right side of the steering knuckle of the two independent suspensions are installed in the center holes of the left and right coaxial steering knuckles of the two independent suspensions and connected to the vehicle body through double A-type support arms. The center lines of the two coaxial clevis shaft steering knuckles of the universal joint 1420 are located at the left universal joint output shaft bearing seat 118 and the right universal joint output shaft bearing seat 117 of the second set of universal joint output shaft bevel gear right angle transmission box housing 1403 installed into an integral structure with the vehicle body and the lower part of the vehicle body, and there is a sufficiently long travel distance between the center lines of the two coaxial left clevis shaft steering knuckle constant velocity ball cage universal joints 1419 and the right clevis shaft steering knuckle constant velocity ball cage universal joints 1420 and the vehicle chassis.

[0172] When the two sets of new multi-purpose shaft transmission boxes in this scheme are used for the independent suspension clevis shaft steering knuckle, the left side universal joint output shaft bearing seat 118 and the right side universal joint output shaft bearing seat 117 of the universal joint output shaft bevel gear right angle transmission box housing 1403 of the second set of new multi-purpose shaft transmission box 1401 and the universal joint output spline shaft 113 extending to the left and right sides are also arranged horizontally and installed in the middle position of the second group of independent suspension drive axle body at the second drive axle position at the front of the all-terrain amphibious vehicle or wheeled armored vehicle body, and are at the middle position of the constant velocity ball cage universal joint 1419 and the left side transmission half shaft 1405 of the left clevis shaft steering knuckle and the constant velocity ball cage universal joint 1420 and the right side transmission half shaft 1406 of the right clevis shaft steering knuckle installed on the left and right sides of the vehicle body, and are installed into an integral structure with the vehicle body chassis.

[0173] The left side constant velocity ball cage universal joint outer ball cage 115 is installed on the left side end of the universal joint output spline shaft 113 at the outer left end of the left side universal joint output shaft bearing seat 118 of the second set of universal joint output shaft bevel gear right angle transmission box housing 1403 which is laterally arranged and installed at the second drive axle position on the vehicle body chassis and is fastened with a center screw. The transmission half shaft 1405 extending laterally to the left is installed through the center spline hole of the inner ball cage in the outer ball cage 115 of the left constant velocity ball cage universal joint installed at the left end of the universal joint output spline shaft 113 of the second set of universal joint output shaft bevel gear right angle transmission box housing 1403. The inner ball cage installed on the right end of the transmission half shaft is meshed with the outer ball cage 115 of the constant velocity ball cage universal joint, and the transmission half shaft 1405 for transmitting power to the left is installed through the center spline hole of the inner ball cage and extends laterally to the left to the steering knuckle shaft hole of the independent suspension clevis shaft on the left side of the vehicle body. The outer ball cage 1419 of the constant velocity ball cage universal joint with telescopic function is installed to the right, and the left end of the transmission half shaft 1405 is meshed with the center spline hole of the inner ball cage to transmit power.

[0174] The right end of the universal joint output spline shaft 113 on the right side of the universal joint output shaft bearing seat or 117 of the second set of universal joint output shaft bevel gear right angle transmission box housing 1403 which is laterally arranged and installed at the second drive axle position on the vehicle body chassis is also equipped with a right end constant velocity ball cage universal joint outer ball cage 116 and fastened with a center screw. The transmission half shaft 1406 extending laterally to the right is installed through the center spline hole of the inner ball cage in the outer ball cage 116 of the right constant velocity ball cage universal joint installed at the right end of the universal joint output spline shaft 113 of the second set of universal joint output shaft bevel gear right angle transmission box housing 1403. The inner ball cage installed at the left end of the transmission half shaft is meshed with the outer ball cage 116 of the constant velocity ball cage universal joint, and the transmission half shaft 1406 transmitting power to the right is installed through the center spline hole of the inner ball cage and extends laterally to the right to the steering knuckle shaft hole of the independent suspension clevis shaft on the right side of the vehicle body. The outer ball cage 1420 of the constant velocity ball cage universal joint with telescopic function is installed to the left, and the right end of the transmission half shaft 1406 is meshed with the center spline hole of the inner ball cage to transmit power.

[0175] An inter-axle differential can be optionally installed between the left-side universal joint output shaft bearing seat 118 and the right-side universal joint output shaft bearing seat 117 in the universal joint output shaft bevel gear right-angle transmission box housing 112 of the supporting independent suspension clevis steering knuckle, so that a differential function is provided between the left-side constant velocity ball cage universal joint 115 installed on the left end of the universal joint output spline shaft 113 at the left end outside the left universal joint output shaft bearing seat 118 and the right-side constant velocity ball cage universal joint 116 installed on the right end of the universal joint output spline shaft 113 at the right end outside the right universal joint output shaft bearing seat 117, as well as the left and right drive half-shafts and tires.

[0176] The dual-axle rear axle is a four-wheel drive, integrated drive axle dual rear axle structure. The third integrated drive axle 1409 and the fourth integrated drive axle 1410 are assembled into an integrated drive axle housing, which is composed of a tubular bridge tube of suitable length, an elliptical drive axle gear or sprocket chain transmission housing 1411 installed at the left end of the third integrated drive axle tube 1409, and an elliptical drive axle gear or sprocket chain transmission housing 1412 installed at the right end of the fourth integrated drive axle tube 1410. The two sets of rear-drive integrated drive axles share a new multi-purpose shaft transmission housing.

[0177] The left side universal joint output shaft bearing seat 118 and the right side universal joint output shaft bearing seat 117 of the universal joint output shaft bevel gear right-angle transmission box housing 1416 of the third set of new multi-purpose shaft transmission box body 1404 and the universal joint output shaft spline shaft 113 extending to the left and right are arranged horizontally and installed at the rear part of the body of the all-terrain amphibious vehicle or wheeled armored vehicle, in the middle position of the third integral drive axle 1409 and the fourth integral drive axle 1410 and installed into an integral structure with the vehicle chassis. At the same time, the left side universal joint output shaft bearing seat 118 and the right side universal joint output shaft bearing seat 117 of the universal joint output shaft bevel gear right-angle transmission box housing 1416 and the universal joint output shaft spline shaft 113 extending to the left and right are maintained in a parallel installation position with the third group of integral drive axles 1409 and the fourth group of integral drive axles 1410 of the double rear axle.

[0178] The third set of new multi-purpose shaft transmission housings 1404, which are laterally mounted on the chassis of an all-terrain amphibious vehicle or wheeled armored vehicle, includes a bevel gear right-angle transmission housing 1416 for the universal joint output shaft. The ends of the universal joint output spline shafts 113 extending outward from the left and right universal joint output shaft bearing blocks 118 and 117 are simultaneously mounted with the left and right constant velocity ball joint outer spheres 115 and right constant velocity ball joint 116, and are fastened together with a central screw. A transmission half shaft 1407 extending laterally to the left is inserted into the center spline hole of the inner sphere of the left constant velocity ball joint outer sphere 115, while a transmission half shaft 1408 extending laterally to the right is inserted into the center spline hole of the inner sphere of the right constant velocity ball joint outer sphere 116.

[0179] In order to correspond to the installation position of the left side universal joint output shaft bearing seat 118 of the third set of universal joint output shaft bevel gear right-angle transmission box housing 1416 and the constant velocity ball cage universal joint 115 installed at the left end of the universal joint output spline shaft 113 to output power to the left side of the transmission half-shaft 1407, the third integral drive axle gear (or sprocket chain) transmission box housing 1411 is preferably installed in a horizontal position at the left end position of the third integral drive axle 1409 bridge tube, and the drive axle gear (or sprocket chain transmission box housing 1411 installed at the left end of the third integral drive axle 1409 bridge tube is parallel to the ground and in a horizontal installation position. It can also be a vertical position or any position that is convenient for the installation of the transmission half-shaft, among which the horizontal position transmission of power is preferably the best example.

[0180] The third integral drive axle gear or sprocket chain transmission box housing 1411 installed at the left end of the integral drive axle 1409 is in a horizontal installation position, and the universal joint and input spline shaft 1413 are in an installation position on the left and rear end of the third integral drive axle 1409, so that the constant velocity ball cage universal joint outer ball cage 1413 with telescopic function installed to the right on the right input spline shaft outside the integral drive axle gear or sprocket chain transmission box housing 1411 and the constant velocity ball cage universal joint outer ball cage 115 installed to the left on the left end of the left universal joint output spline shaft 113 outside the left universal joint output shaft bevel gear right-angle transmission box housing 1416 of the third set of new multi-purpose shaft transmission box 1404 are in a relative position. The transmission half shaft 1407 for outputting power to the left is preferably arranged horizontally and installed outside the third set of new multi-purpose shaft transmission box body 1404 universal joint output shaft bevel gear right-angle transmission box housing 1416, and the left end of the left universal joint output spline shaft 113 is installed to the left inside the constant velocity ball cage universal joint outer ball cage 115. The transmission half shaft 1407 is installed in the constant velocity ball cage universal joint outer ball cage 115 and penetrates the center spline hole of the inner ball cage and extends horizontally to the left to the drive axle gear or sprocket chain transmission box housing (1411) welded to the left end of the bridge tube of the third integral drive axle 1409. The constant velocity ball cage universal joint outer ball cage (1413) with a telescopic function extends to the right outside the right input shaft bearing seat and meshes with the center spline hole of the inner ball cage to transmit power.

[0181] In order to correspond to the universal joint output shaft bearing seat 117 and the universal joint output spline shaft 113 on the right side of the third set of universal joint output shaft bevel gear right-angle transmission box housing 1416 and the constant velocity ball cage universal joint (116) installed on the right end, the installation position of the transmission half-shaft 1408 that outputs power to the right is adjusted, and at the same time, the fourth integral drive axle gear or sprocket chain transmission box housing 1412 is preferably installed in a horizontal position at the right end position of the fourth integral drive axle 1410 bridge tube. The drive axle gear (or sprocket chain transmission box housing 1412) installed at the right end of the fourth integral drive axle 1410 bridge tube is parallel to the ground and in a horizontal installation position. It can also be a vertical position or any position that is convenient for the installation of the transmission half-shaft, among which the horizontal position transmission of power is preferably the best example.

[0182] The fourth integral drive axle gear or sprocket chain transmission case housing 1412 installed at the right end of the integral drive axle (1410) is in a horizontal installation position, and the universal joint and the input spline shaft 1414 are in the installation position on the right side and front end of the fourth integral drive axle 1410, so that the telescopic constant velocity ball cage universal joint outer ball cage 1414 installed to the left on the left input spline shaft outside the integral drive axle gear or sprocket chain transmission case housing (1412) and the constant velocity ball cage universal joint outer ball cage 116 installed to the right on the right end of the right universal joint output spline shaft (113) outside the right universal joint output shaft bevel gear right angle transmission case housing 1416 of the third set of new multi-purpose shaft transmission box body 1404 are in a relative position. At the same time, the transmission half-shaft 1408 that outputs power to the right is preferably arranged horizontally and installed outside the third set of new multi-purpose shaft transmission box 1404 universal joint output shaft bevel gear right-angle transmission box housing 1416, and the right end of the universal joint output spline shaft 113 is installed to the right in the constant velocity ball cage universal joint outer ball cage 116. The transmission half-shaft 1408 installed in the constant velocity ball cage universal joint outer ball cage 116 and the center spline hole of the inner ball cage is inserted into the center spline hole of the inner ball cage and extends horizontally to the right to the drive axle gear or sprocket chain transmission box housing 1412 welded on the right end of the fourth integral drive axle 1410 bridge tube. It is inside the constant velocity ball cage universal joint outer ball cage 1414 with telescopic function that extends to the left outside the left input shaft bearing seat, and meshes with the center spline hole of the inner ball cage to transmit power.

[0183] When the third set of new multi-purpose shaft transmission box 1404 is used to drive the third group of integral drive axles 1409 and the fourth group of integral drive axles 1410, an inter-axle differential can be optionally installed in the middle position of the universal joint output spline shaft 113 at the left and right ends in the universal joint output shaft bevel gear right-angle transmission box housing 1416 of the new multi-purpose shaft transmission box 1404, so that there is a differential function between the left constant velocity ball cage universal joint 115 and the transmission half shaft 1407 that outputs power to the left, and the right constant velocity ball cage universal joint 116 and the transmission half shaft 1408 that outputs power to the right.

[0184] The dual front axle drive axle expanded for four-axle drive is an independent suspension steering axle, and the first set of new multi-purpose shaft transmission boxes 1400 and the second set of new multi-purpose shaft transmission boxes 1401 supporting the two sets of independent suspension front drive axles share a set of new multi-purpose shaft transmission boxes 1404 with the dual rear axle drive axle, which are integral drive axles. They are the same new multi-purpose shaft transmission box. In order to synchronize the rotational speeds of the wheelsets between the dual front axles and the dual rear axles, the transmission speed ratios of the drive axle gear or sprocket chain transmission box housing (1411) installed on the third integral drive axle 1409 and the drive axle gear or sprocket chain transmission box housing 1412 installed on the fourth integral drive axle 1410 can be adjusted to make the rotational speeds of the front wheel group and the rear wheel group the same.

[0185] When the use of the integral drive axle is expanded to apply to the dual rear axle drive of an all-terrain amphibious vehicle or a wheeled armored vehicle, an inter-axle differential can be optionally installed between the left and right drive axle half-shafts in the third integral drive axle gear (or sprocket chain) transmission box housing 1411 and the fourth integral drive axle gear or sprocket chain transmission box housing 1412, so that a differential function is provided between the left and right drive axle half-shafts in the integral drive axle bridge tube and the drive wheels installed at both ends.

[0186] The multi-drive axle power transmission structure of the new multi-purpose axle transmission system for all-terrain vehicles described in Example 2 is expanded and applied to the transmission structure characteristics of the three-drive axle 6x6 drive wheel all-terrain UTV ATV or amphibious vehicle and wheeled armored vehicle: the transmission method of the expanded three-drive axle structure is improved from the transmission method of the four-drive axle, wherein the front axle of the double-axle structure is a four-wheel drive independent suspension steering front double-axle structure. The first set of left-side independent suspension clevis steering knuckle constant velocity ball joint universal joint 1417 and the installed transmission half shaft 1421 for outputting power to the left and the first set of right-side independent suspension clevis steering knuckle constant velocity ball joint universal joint 1418 and the installed transmission half shaft 1415 for outputting power to the right cooperate with the first set of new multi-purpose axle transmission The universal joint output shaft bevel gear right-angle transmission box housing 1402 of the power box body 1400 is combined and transmits power. At the same time, the constant velocity ball cage universal joint 1419 of the second set of left independent suspension clevis shaft steering knuckle and the installed transmission half shaft 1405 for outputting power to the left and the constant velocity ball cage universal joint 1420 of the second set of right independent suspension clevis shaft steering knuckle and the installed transmission half shaft 1406 for outputting power to the right cooperate with the universal joint output shaft bevel gear right-angle transmission box housing 1403 of the second set of new multi-purpose shaft transmission box body 1401 to transmit power.

[0187] When expanding the three-drive axle 6x6 drive structure, the second set of independent suspension drive axles is removed from the front double axles of the two sets of independent suspension shear shaft steering knuckles, leaving only the first set of left-side independent suspension shear shaft steering knuckle's constant velocity ball joint universal joint 1417 and the transmission half shaft 1421 for outputting power to the left, and the first set of right-side independent suspension shear shaft steering knuckle's constant velocity ball joint universal joint 1418 and the transmission half shaft 1415 for outputting power to the right, which cooperate with the universal joint output shaft bevel gear right-angle transmission box housing 1402 of the first set of new multi-purpose shaft transmission box 1400 to transmit power. When expanding the triple-drive axle structure, the rear axle of the dual-axle structure is an integrally driven dual rear axle structure. The third and fourth integrally driven axles 1409 and 1410 of the two rear-drive units share the universal joint output shaft and bevel gear right-angle transmission case 1416 of the third new multi-purpose shaft transmission case 1404 for power transmission. The first independent suspension front axle and the two integrally driven rear axles combine to form a triple-drive axle 6x6 drive wheel transmission structure. This structure eliminates the second independent suspension clevis steering knuckle and constant velocity ball joint universal joint, as well as the universal joint output shaft and bevel gear right-angle transmission case of the second new multi-purpose shaft transmission case. The three drive axles utilize only two new multi-purpose shaft transmission cases: the universal joint output shaft and bevel gear right-angle transmission case 1402 of the first new multi-purpose shaft transmission case 1400 and the universal joint output shaft and bevel gear right-angle transmission case 1416 of the third new multi-purpose shaft transmission case 1404.

[0188] When the use of the integral drive axle is expanded to apply to the dual rear axle drive of an all-terrain amphibious vehicle or a wheeled armored vehicle, an inter-axle differential can be optionally installed between the left and right drive axle half-shafts in the third integral drive axle gear (or sprocket chain) transmission box housing 1411 and the fourth integral drive axle gear or sprocket chain transmission box housing 1412, so that a differential function is provided between the left and right drive axle half-shafts in the integral drive axle bridge tube and the drive wheels installed at both ends.

[0189] The multi-drive axle power transmission structure of the new multi-purpose shaft transmission system for an all-terrain vehicle described in Example 3 is extended to be applied to a special all-terrain amphibious vehicle or wheeled armored vehicle with an integral four-drive axle and 8x8 drive wheels, and its structural features are as follows: the front axle of the double-axle structure is a four-wheel drive integral drive axle double front axle structure, wherein the first integral drive axle 1507 is composed of a tubular bridge tube with a suitable length and an elliptical drive axle gear or sprocket chain transmission box housing 1508 installed at the left end position of the first integral drive axle tube 1507 to form an integral drive axle shell, and the same second integral drive axle 1510 is a double front axle structure composed of a tubular bridge tube with a suitable length and an elliptical drive axle gear or sprocket chain transmission box housing 1511 installed at the right end position of the second integral drive axle tube 1510 to form an integral drive axle shell, and the first set of new multi-purpose shaft transmission box body 1501 is shared between the first set of integral drive axles 1507 and the second set of integral drive axles 1510 of the two sets of front axles of the double-axle drive.

[0190] The left side universal joint output shaft bearing seat 118 and the right side universal joint output shaft bearing seat 117 of the universal joint output shaft bevel gear right angle transmission box housing 1502 of the first set of new multi-purpose shaft transmission box 1501 and the universal joint output shaft spline shaft 113 extending to the left and right sides are arranged horizontally and installed at the front chassis position of the all-terrain amphibious vehicle or wheeled armored vehicle, in the middle position between the first integral drive axle 1507 and the second integral drive axle 1510, and installed with the vehicle chassis to form an integral structure. At the same time, the left side universal joint output shaft bearing seat 118 and the right side universal joint output shaft bearing seat 117 of the universal joint output shaft bevel gear right angle transmission box housing 1502 and the universal joint output shaft spline shaft 113 extending to the left and right sides maintain a parallel installation position with the first group of integral drive axles 1507 and the second group of integral drive axles 1510 of the dual-drive front axle.

[0191] The first set of new multi-purpose shaft transmission box 1501 arranged transversely and installed on the chassis of an all-terrain amphibious vehicle or a wheeled armored vehicle is equipped with a universal joint output shaft bevel gear right-angle transmission box housing 1502. At the same time, a left-end constant velocity ball cage universal joint outer ball cage 115 is installed on the universal joint output spline shaft 113 extending outward from the left end outside the left universal joint output shaft bearing seat 118. At the same time, a right-end constant velocity ball cage universal joint outer ball cage 116 is installed on the universal joint output spline shaft 113 extending outward from the right end outside the right universal joint output shaft bearing seat 117 and fastened with a center screw.

[0192] At the same time, a transmission half-shaft 1517 extending laterally to the left is inserted into the center spline hole of the inner ball cage in the outer ball cage 115 of the constant velocity ball cage universal joint at the left end of the left universal joint output spline shaft 113 installed on the left side of the first set of universal joint output shaft bevel gear right-angle transmission box housing 1502. The inner ball cage installed at the right end of the transmission half-shaft is meshed with the constant velocity ball cage universal joint outer ball cage 115 installed at the left end of the universal joint output spline shaft 113. The transmission half-shaft 1517 installed with the inner ball cage for outputting power to the left extends laterally to the left to the drive axle gear or sprocket chain installed on the left side of the first integral drive axle 1507 of the dual-drive front axle. The constant velocity ball cage universal joint outer ball cage 1509 with telescopic function installed on the right side outside the input shaft bearing seat outside the transmission box housing 1508 is meshed with the center spline hole of the inner ball cage and transmits power.

[0193] The first integral drive axle gear or sprocket chain transmission box housing 1508 installed at the left end of the integral drive axle 1507 is in a horizontal installation position, and the universal joint and input spline shaft 1509 are in the installation position on the left and rear end of the first integral drive axle 1507, so that the constant velocity ball cage universal joint outer ball cage 1509 with telescopic function installed to the right on the right input spline shaft outside the integral drive axle gear or sprocket chain transmission box housing 1508 and the constant velocity ball cage universal joint outer ball cage 115 installed to the left on the left end of the universal joint output spline shaft 113 outside the left universal joint output shaft bevel gear right-angle transmission box housing 1502 of the first set of new multi-purpose shaft transmission box 1501 are in a relative position. Among them, the transmission half-shaft 1517 that outputs power to the left is preferably arranged horizontally and installed in the constant velocity ball cage universal joint outer ball cage 115 with the end of the universal joint output spline shaft 113 installed to the left on the left side outside the first set of new multi-purpose shaft transmission box 1501 universal joint output shaft bevel gear right-angle transmission box housing 1502. At the same time, the transmission half-shaft 1517 installed in the constant velocity ball cage universal joint outer ball cage 115 and the center spline hole of the inner ball cage is inserted and extended horizontally to the left to the drive axle gear or sprocket chain transmission box housing 1508 welded on the left end of the bridge tube of the first integral drive axle 1507. It is inside the constant velocity ball cage universal joint outer ball cage 1509 with telescopic function that extends to the right outside the input shaft bearing seat on the right side, meshes with the center spline hole of the inner ball cage and transmits power.

[0194] At the same time, a transmission half-shaft 1518 extending laterally to the right is installed in the center spline hole of the inner ball cage in the outer ball cage 116 of the constant velocity ball cage universal joint on the right end of the universal joint output spline shaft 113 on the right side of the first set of universal joint output shaft bevel gear right-angle transmission box housing 1502. The inner ball cage installed at the left end of the transmission half-shaft is meshed with the constant velocity ball cage universal joint outer ball cage 116 installed at the right end of the universal joint output spline shaft 113. The transmission half-shaft 1518 installed with the inner ball cage for transmitting power to the right extends laterally to the right to the drive axle gear or sprocket chain installed on the right side of the second integral drive axle 1510 of the dual-drive front axle. The constant velocity ball cage universal joint outer ball cage 1512 with telescopic function installed on the left side of the input shaft bearing seat outside the transmission box housing 1511 is meshed with the center spline hole of the inner ball cage and transmits power.

[0195] The second integral drive axle gear or sprocket chain transmission box housing 1511 installed at the right end of the integral drive axle 1510 is in a horizontal installation position, and the universal joint and input spline shaft 1512 are in the installation position on the right side and front end of the second integral drive axle 1510, so that the constant velocity ball cage universal joint outer ball cage 1512 with telescopic function installed to the left on the left input spline shaft outside the integral drive axle gear or sprocket chain transmission box housing 1511 and the constant velocity ball cage universal joint outer ball cage 116 installed to the right on the right end of the universal joint output spline shaft 113 outside the right side universal joint output shaft bevel gear right-angle transmission box housing 1502 of the first set of new multi-purpose shaft transmission box 1501 are in a relative position. At the same time, the transmission half shaft 1518 for outputting power to the right is preferably arranged horizontally and installed outside the first set of new multi-purpose shaft transmission box body 1501 universal joint output shaft bevel gear right-angle transmission box housing 1502, and the end of the universal joint output spline shaft 113 on the right side is installed to the right in the constant velocity ball cage universal joint outer ball cage 116. At the same time, the transmission half shaft 1518 installed in the constant velocity ball cage universal joint outer ball cage 116 and the center spline hole of the inner ball cage is penetrated and extended horizontally to the right to the drive axle gear (or sprocket chain) welded on the right end of the bridge tube of the second integral drive axle 1510, and is inserted into the constant velocity ball cage universal joint outer ball cage 1512 with telescopic function extending to the left outside the input shaft bearing seat on the left side of the transmission box housing 1511, and meshes with the inner ball cage to transmit power.

[0196] When the universal joint output shaft bevel gear right-angle transmission box housing 1502 of the first set of new multi-purpose shaft transmission box 1501 is used to drive the first integral drive axle 1507 and the second integral drive axle 1510 of two sets of double front axles to transmit power, an inter-axle differential can be optionally installed in the middle position of the left and right sets of constant velocity ball cage universal joint output spline shafts 113 in the universal joint output shaft bevel gear right-angle transmission box housing 1502 of the first set of new multi-purpose shaft transmission box 1501, so that a differential function is provided between the constant velocity ball cage universal joint 115 installed at the left end of the left universal joint output spline shaft 113 and the transmission half shaft 1517 that transmits power to the left and the constant velocity ball cage universal joint 116 installed at the right end of the right universal joint output spline shaft 113 and the transmission half shaft 1518 that transmits power to the right.

[0197] The integral drive axle is expanded and applied to the transmission system of the four-drive axle 8x8 drive wheels. When the matching new multi-purpose shaft transmission box is applied to the double rear axle of the integral drive axle to transmit power, the rear axle of the double-bridge structure is a four-wheel drive integral drive axle double rear axle structure, including a third integral drive axle 1513 which is composed of a tubular bridge tube with a suitable length and an elliptical drive axle gear or sprocket chain transmission box shell 1516 installed at the left end of the third integral drive axle tube 1513 to form an integral drive axle shell. The same fourth integral drive axle 1506 is composed of a tubular bridge tube with a suitable length and an elliptical drive axle gear or sprocket chain transmission box shell 1505 installed at the right end of the fourth integral drive axle tube 1506 to form an integral drive axle shell. The second set of new multi-purpose shaft transmission box 1503 is shared between the third set of integral drive axles 1513 and the fourth integral drive axle 1506 of the two sets of rear axles of the double-bridge drive.

[0198] The left side universal joint output shaft bearing seat 118 and the right side universal joint output shaft bearing seat 117 of the universal joint output shaft bevel gear right-angle transmission box housing 1504 of the second set of new multi-purpose shaft transmission box 1503 and the universal joint output shaft spline shaft 113 extending to the left and right are arranged horizontally and installed on the rear chassis position of the all-terrain amphibious vehicle or wheeled armored vehicle, in the middle position of the third integral drive axle 1513 and the fourth integral drive axle 1506, and installed with the vehicle chassis to form an integral structure. At the same time, the left side universal joint output shaft bevel gear bearing seat 118 and the right side universal joint output shaft bevel gear bearing seat 117 of the universal joint output shaft bevel gear right-angle transmission box housing 1504 and the universal joint output spline shaft 113 extending to the left and right maintain a parallel installation position with the third group of integral drive axles 1513 and the fourth group of integral drive axles 1506 of the dual-drive rear axle.

[0199] The universal joint output shaft bevel gear right-angle transmission box housing 1504 of the second set of new multi-purpose shaft transmission box 1503 which is laterally arranged and installed on the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle is equipped with a left-end constant velocity ball cage universal joint outer ball cage 115 on the left-side universal joint output shaft bearing seat 118 and the universal joint output spline shaft 113 extending outward from the left end. At the same time, the right-end constant velocity ball cage universal joint outer ball cage 116 is equipped with a right-end constant velocity ball cage universal joint outer ball cage 116 on the right-side universal joint output shaft bearing seat 117 and fastened with a center screw.

[0200] At the same time, a transmission half-shaft 1519 extending laterally to the left is inserted into the center spline hole of the inner ball cage in the outer ball cage 115 of the constant velocity ball cage universal joint on the left end of the left universal joint output spline shaft 113 installed on the left side of the second set of universal joint output shaft bevel gear right-angle transmission box housing 1504. The inner ball cage installed on the right end of the transmission half-shaft is meshed with the constant velocity ball cage universal joint outer ball cage 115 installed on the left end of the universal joint output spline shaft 113. The transmission half-shaft 1519 installed with the inner ball cage for outputting power to the left extends laterally to the left to the drive axle gear or sprocket chain installed on the left side of the third integral drive axle 1513 of the dual-drive rear axle. The constant velocity ball cage universal joint outer ball cage 1514 with telescopic function installed on the right side outside the input shaft bearing seat outside the transmission box housing 1516 is meshed with the center spline hole of the inner ball cage and transmits power.

[0201] Among them, the third set of integral drive axle gear or sprocket chain transmission box housing 1516 installed on the left end of the integral drive axle 1513 is in a horizontal installation position, and the universal joint and input spline shaft 1514 are in the installation position on the left side and rear end of the third integral drive axle 1513, so that the constant velocity ball cage universal joint outer ball cage 1514 with telescopic function installed to the right on the right side input spline shaft outside the integral drive axle gear or sprocket chain transmission box housing 1516 and the constant velocity ball cage universal joint outer ball cage 115 installed to the left on the left side universal joint output spline shaft 113 end outside the left side universal joint output shaft bevel gear right angle transmission box housing 1504 of the second set of new multi-purpose shaft transmission box body 1503 are in a relative position. The transmission half shaft 1519 for outputting power to the left is preferably arranged transversely and installed outside the universal joint output shaft bevel gear right angle transmission box housing 1504 of the second set of new multi-purpose shaft transmission box body 1503. The end of the universal joint output spline shaft 113 is installed to the left in the constant velocity ball cage universal joint outer ball cage (115). At the same time, the transmission half shaft 1519 is installed in the constant velocity ball cage universal joint outer ball cage 115 and the center spline hole of the inner ball cage. It extends transversely to the left to the drive axle gear or sprocket chain transmission box housing 1516 welded on the left end of the third integral drive axle 1513. The input shaft bearing seat on the right side extends to the right and the constant velocity ball cage universal joint outer ball cage 1514 with telescopic function is engaged with the center spline hole of the inner ball cage and transmits power.

[0202] At the same time, a transmission half-shaft 1520 extending laterally to the right is installed in the center spline hole of the inner ball cage in the outer ball cage 116 of the constant velocity ball cage universal joint on the right end of the universal joint output spline shaft 113 on the right side of the second set of universal joint output shaft bevel gear right-angle transmission box housing 1504. The inner ball cage installed at the left end of the transmission half-shaft is meshed with the outer ball cage 116 of the constant velocity ball cage universal joint installed at the right end of the universal joint output spline shaft 113. The transmission half-shaft 1520 installed with the inner ball cage for transmitting power to the right extends laterally to the right to the fourth integral drive axle 1506 of the dual-drive rear axle. The drive axle gear or sprocket chain transmission box housing 1505 is installed on the right side. The outer ball cage 1515 of the constant velocity ball cage universal joint with telescopic function installed on the left side and extending to the left is meshed with the center spline hole of the inner ball cage and transmits power.

[0203] The fourth integral drive axle gear or sprocket chain transmission case housing 1505, mounted on the right end of the integral drive axle 1506, is installed horizontally, with the universal joint and input spline shaft 1515 positioned on the right and front end of the fourth integral drive axle 1506. The telescopic constant velocity ball joint outer ball cage 1515, mounted to the left on the left input spline shaft outside the integral drive axle gear or sprocket chain transmission case housing 1505, is positioned opposite the constant velocity ball joint outer ball cage 116, mounted to the right on the end of the right universal joint output spline shaft 113 outside the right universal joint output shaft bevel gear right-angle transmission case housing 1504 of the second set of novel multi-purpose shaft transmission housing 1503. At the same time, the transmission half-shaft 1520 that outputs power to the right is preferably arranged horizontally and installed in the constant velocity ball cage universal joint outer ball cage 116 with the universal joint output spline shaft 113 end mounted to the right on the right side outside the second set of new multi-purpose shaft transmission box 1503 universal joint output shaft bevel gear right-angle transmission box housing 1504. At the same time, the transmission half-shaft 1520 is installed in the constant velocity ball cage universal joint outer ball cage 116 and the center spline hole of the inner ball cage, and extends horizontally to the right to the drive axle gear (or sprocket chain) welded on the right end of the bridge tube of the fourth integral drive axle 1506 transmission box housing 1505. The input shaft bearing seat extends to the left outside the transmission box housing 1505, and the constant velocity ball cage universal joint outer ball cage 1515 with telescopic function extends to the left and engages with the center spline hole of the inner ball cage to transmit power.

[0204] When the universal joint output shaft bevel gear right-angle transmission box housing 1504 of the second set of new multi-purpose shaft transmission box body 1503 is used to drive the third integral drive axle 1513 and the fourth integral drive axle 1506 of two sets of double rear axle drive axles to transmit power, an inter-axle differential can be optionally installed in the middle position of the left and right sets of constant velocity ball cage universal joint output spline shafts 113 in the universal joint output shaft bevel gear right-angle transmission box housing 1504 of the second set of new multi-purpose shaft transmission box body 1503, so that a differential function is provided between the constant velocity ball cage universal joint 115 installed at the left end of the left universal joint output spline shaft 113 and the transmission half shaft 1519 that transmits power to the left and the constant velocity ball cage universal joint 116 installed at the right end of the right universal joint output spline shaft 113 and the transmission half shaft 1520 that transmits power to the right.

[0205] When the use of the integral drive axle is expanded and applied to an all-terrain amphibious vehicle or a wheeled armored vehicle body to transmit power under the working conditions of four sets of drive axles, since the four sets of drive axles are of the same integral drive axle structure and do not have the steering function of wheel hub tire deflection, they must be in the first set of integral drive axle gears or sprocket chain transmission box housing 1508, the second set of integral drive axle gears or sprocket chain transmission box housing 1511, and the third set of integral drive axle gears or sprocket chain transmission box housing 1516, and the fourth set of integral drive axle gears or sprocket chain transmission box housing 1517. An inter-axle differential combination is installed between the left and right drive axle half-shafts installed in the bridge tube of each set of integral drive axles in the box shell 1506, so that the left and right drive axle half-shafts installed on the inter-axle differential in the bridge tubes of the first set of integral drive axles 1507, the second set of integral drive axles 1510, the third set of integral drive axles 1513, and the fourth set of integral drive axles 1506 have a differential function and the drive wheels installed at the ends of the two half-shafts can generate a speed difference between the coaxial wheel pairs on the left and right sides of the vehicle chassis, so that the vehicle can generate tire slip and steering functions. At the same time, two sets of left and right brake steering systems are installed on the vehicle body of the four-wheel drive integral drive axle 8×8 drive wheel structure. Among them, the four sets of integral drive axles installed on the vehicle chassis include the first set of integral drive axles 1507, the second set of integral drive axles 1510, the third set of integral drive axles 1513, and the fourth set of integral drive axles 1506. Two sets of left and right brake systems are installed. The left brake system is installed on the left wheel hub of the same integral drive axle, and the right brake system is installed on the right wheel hub. When the moving vehicle uses the brake system on one side, the speed of the drive wheel on one side of the vehicle body is reduced, and the drive wheel on the opposite side of the same axis accelerates the speed of the drive axle half shaft and the drive wheel under the action of the differential, so that the drive wheels on the left and right sides of the four sets of integral drive axles have a speed difference at the same time, thereby realizing tire sliding steering or turning on the spot.

[0206] Example 4 The multi-drive axle power transmission structure of the new multi-purpose shaft transmission system for all-terrain vehicles is expanded and applied to the transmission structure of three-axle drive 6x6 drive wheels and four-axle drive 8x8 drive wheel structures. The front axle used for the double-axle structure is a four-wheel drive independent suspension steering front double-axle structure. The left side universal joint output shaft bearing seat 118 and the right side universal joint output shaft bearing seat 117 of the first set of new multi-purpose shaft transmission box body of the universal joint output shaft bevel gear right-angle transmission box housing 1402 must be in a horizontal position and arranged horizontally on the body chassis of the all-terrain amphibious vehicle or wheeled armored vehicle, so as to better arrange and install the universal joint and drive half-shaft to transmit power. However, in order to obtain the power transmitted by the remote engine, the output of the first set of new multi-purpose shaft transmission box body installed in the vertical position must be installed horizontally. The input shaft bevel gear right angle transmission box housing 1400 and the universal joint output shaft bevel gear right angle transmission box housing 1402 are installed and fixed by rotating the intermediate transmission shaft support protection tube 109 and the flange 110 by 90 degrees on the axial position of the intermediate transmission shaft 108, so that the input spline shaft (101) in the input shaft bevel gear right angle transmission box housing 1400 of the novel multi-purpose shaft transmission box body installed in a vertical position is in a longitudinal installation position and is parallel to the longitudinal axis of the all-terrain amphibious vehicle or wheeled armored vehicle body, and has a transmission phase difference of 90 degrees with the universal joint output shaft (113) in the universal joint output shaft bevel gear right angle transmission box housing 1402 installed in a transverse arrangement at the chassis position of the all-terrain amphibious vehicle or wheeled armored vehicle body on the axial position of the intermediate transmission shaft 108.

[0207] The left side universal joint output shaft bearing seat 118 and the right side universal joint output shaft bearing seat 117 of the universal joint output shaft bevel gear right angle transmission box housing 1403 of the second set of new multi-purpose shaft transmission box body must be installed in a horizontal position and horizontally on the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle body, so as to better arrange and install the universal joint and the transmission half shaft to transmit power. However, in order to obtain the power transmitted by the remote engine, the input shaft bevel gear right angle transmission box housing 1401 of the second set of new multi-purpose shaft transmission box body installed in a vertical position and the universal joint output shaft bevel gear right angle transmission box housing 1403 must be installed in the middle transmission The intermediate transmission shaft support protection tube 109 and the flange 110 are rotated 90 degrees and fixed on the axial position of the shaft 108, so that the input spline shaft (101) in the input shaft bevel gear right-angle transmission box housing 1401 of the novel multi-purpose shaft transmission box body installed in a vertical position is in a longitudinal installation position, parallel to the longitudinal axis of the all-terrain amphibious vehicle or wheeled armored vehicle body, and has a transmission phase difference of 90 degrees with the universal joint output shaft (113) in the universal joint output shaft bevel gear right-angle transmission box housing 1403 installed in a transverse arrangement at the chassis position of the all-terrain amphibious vehicle or wheeled armored vehicle body on the axial position of the intermediate transmission shaft 108.

[0208] The rear axle of the matching double-axle structure is a four-wheel drive integral drive axle. The left side universal joint output shaft bearing seat 118 and the right side universal joint output shaft bearing seat 117 of the universal joint output shaft bevel gear right angle transmission box housing 1416 of the third set of new multi-purpose shaft transmission box body must be installed in a horizontal position and horizontally on the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle body to better arrange and install the universal joint and drive half-shaft to transmit power. However, in order to obtain the power transmitted by the remote engine, the input shaft bevel gear right angle transmission box housing 1404 of the third set of new multi-purpose shaft transmission box body installed in the vertical position must be connected to the universal joint output shaft bevel gear right angle transmission box housing 1404 and the universal joint output shaft bevel gear right angle transmission box housing 1404. The bevel gear right angle transmission box housing 1416 is installed and fixed by rotating the intermediate transmission shaft support protection tube 109 and the flange 110 by 90 degrees on the axial position of the intermediate transmission shaft 108, so that the input spline shaft (101) in the bevel gear right angle transmission box housing 1404 of the new multi-purpose shaft transmission box body installed in a vertical position is in a longitudinal installation position, parallel to the longitudinal axis of the all-terrain amphibious vehicle or wheeled armored vehicle body, and has a transmission phase difference of 90 degrees with the universal joint output shaft (113) in the bevel gear right angle transmission box housing 1416 of the universal joint output shaft installed in a transverse arrangement at the chassis position of the all-terrain amphibious vehicle or wheeled armored vehicle body on the axial position of the intermediate transmission shaft 108.

[0209] The expanded integral drive axle is applied to the transmission structure of the four-axle drive 8x8 drive wheel structure. The front axle of the double-axle structure is a four-wheel drive integral drive axle. The double front axle structure is matched with the first set of new multi-purpose shaft transmission box shared between the two sets of front integral drive axles. The left side universal joint output shaft bearing seat 118 and the right side universal joint output shaft bearing seat 117 of the universal joint transmission box housing 1502 must be in a horizontal position and arranged horizontally on the body chassis of the all-terrain amphibious vehicle or wheeled armored vehicle to better arrange and install the universal joint and drive half-shaft to transmit power. However, in order to obtain the power transmitted by the remote engine, the input shaft bevel gear right-angle transmission box housing of the first set of new multi-purpose shaft transmission box installed in the vertical position must be installed. The intermediate transmission shaft support protection tube 109 and the flange 110 are rotated 90 degrees and fixed on the axial position of the intermediate transmission shaft 108 by the body 1501 and the universal joint output shaft bevel gear right angle transmission box housing 1502, so that the input spline shaft (101) in the input shaft bevel gear right angle transmission box housing 1501 of the novel multi-purpose shaft transmission box body installed in a vertical position is in a longitudinal installation position and is parallel to the longitudinal axis of the body of the all-terrain amphibious vehicle or wheeled armored vehicle, and has a transmission phase difference of 90 degrees on the axial position of the intermediate transmission shaft 108 with the universal joint output shaft bevel gear right angle transmission box housing 1502 installed in a transverse arrangement at the chassis position of the body of the all-terrain amphibious vehicle or wheeled armored vehicle.

[0210] The left side universal joint output shaft bearing seat 118 and the right side universal joint output shaft bearing seat 117 of the universal joint output shaft housing 1504 of the second set of new multi-purpose shaft transmission box body shared between the two sets of rear integral drive axles of the double rear axle structure must be installed in a horizontal position and transversely on the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle body, so as to better arrange and install the universal joint and the transmission half shaft to transmit power. However, in order to obtain the power transmitted by the remote engine, the input shaft bevel gear right angle transmission box housing 1503 of the second set of new multi-purpose shaft transmission box body installed in the vertical position must be connected with the universal joint output shaft The bevel gear right angle transmission case housing 1504 is installed and fixed by rotating the intermediate transmission shaft support protection tube 109 and the flange 110 by 90 degrees on the axial position of the intermediate transmission shaft 108, so that the input spline shaft (101) in the bevel gear right angle transmission case housing 1503 of the input shaft of the novel multi-purpose shaft transmission case installed in a vertical position is in a longitudinal installation position and is parallel to the longitudinal axis of the body of the all-terrain amphibious vehicle or wheeled armored vehicle, and has a transmission phase difference of 90 degrees with the universal joint output shaft (113) in the bevel gear right angle transmission case housing 1504 of the universal joint output shaft installed in a transverse arrangement at the chassis position of the body of the all-terrain amphibious vehicle or wheeled armored vehicle on the axial position of the intermediate transmission shaft 108.

[0211] The multi-drive axle power transmission structure of the new multi-purpose axle transmission system for all-terrain vehicles described in Example 5 is applied to all-terrain amphibious vehicles or wheeled armored vehicles. The new multi-purpose axle transmission housing for transmitting power must be installed vertically on the vehicle chassis. Therefore, for a front axle of a dual-axle structure with four-wheel drive and independent suspension steering, the first set of the new multi-purpose axle transmission housing, which is mounted longitudinally, includes the input shaft, bevel gear, right-angle transmission housing 1400, input spline shaft 101, and a drive shaft connected in series with the engine, as well as a universal joint for the drive shaft. The second set of the new multi-purpose axle transmission housing, which is mounted longitudinally, includes the input shaft, bevel gear, right-angle transmission housing 1401, input spline shaft 101, and a drive shaft connected in series with the engine, as well as a universal joint for the drive shaft, and other components.

[0212] The matching rear axle of the double-axle structure is a four-wheel drive integral drive axle. The third set of new multi-purpose shaft transmission box is shared by the two sets of rear integral drive axles of the double rear axle structure and is longitudinally installed. The input shaft bevel gear right-angle transmission box housing 1404 of the new multi-purpose shaft transmission box, the input spline shaft 101 and the drive shaft connected in series with the engine, as well as the drive shaft universal joint and other combined components are installed in the middle position inside the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle. The drive shaft and universal joint that output power from the engine end are connected in series to the input shaft spline shaft outside the housing of each set of longitudinally installed new multi-purpose shaft transmission box, so that each set of new multi-purpose shaft transmission box obtains rotational driving force. The chassis armor can effectively prevent explosive fragments and shock waves from damaging the internal transmission system of the vehicle chassis. The first set of universal joint output shaft bevel gear right angle transmission case 1402 of the new multi-purpose shaft transmission case installed at the external position of the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle, the universal joint 115 transmission half shaft 1421 installed on the left and the universal joint 116 transmission half shaft 1406 installed on the right, and the matching second set of universal joint output shaft bevel gear right angle transmission case 1403, the universal joint 115 transmission half shaft 1405 installed on the left and the universal joint 116 transmission half shaft 140 6, as well as the third set of universal joint output shaft bevel gear right-angle transmission box housing 1416, the universal joint 115 transmission half shaft 1407 installed on the left side and the universal joint 116 transmission half shaft 1408 installed on the right side, and the matching third integral drive axle 1409 and fourth integral drive axle 1410 and other combined components are made of high-strength alloy material with large redundancy design to improve the ability to resist damage to explosive fragments and shock waves, thereby improving the battlefield survivability of all-terrain amphibious vehicles or wheeled armored vehicles to maintain rapid movement.

[0213] The expanded integrated drive axle is applied to the transmission structure of a four-axle drive 8x8 drive wheel structure. The front axle of the dual-axle structure is a four-wheel drive integrated drive axle. The first set of new multi-purpose shaft transmission housings, including the input shaft bevel gear right-angle transmission housing 1501, input shaft spline shaft 101, drive shaft 1521 connected in series with the engine, drive shaft universal joint 1522, and terminal output shaft universal joint 1523, are installed in the center of the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle. The rear axle of the dual-axle structure is a four-wheel drive integrated drive axle. The second set of new multi-purpose shaft transmission housings, including the input shaft bevel gear right-angle transmission housing 1503, input shaft spline shaft 101, intermediate drive shaft 1524, and drive shaft universal joint 1525, are installed in the center of the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle.

[0214] The engine terminal output transmission shaft 1521, which is longitudinally installed in parallel with the longitudinal axis of the vehicle body, is connected to the input spline shaft 101 of the transmission shaft universal joint 1522. The output spline shaft 101, which is horizontally positioned behind the engine transmission shaft universal joint 1522 and extends longitudinally backward, penetrates into the input shaft bevel gear right-angle transmission box housing 1501 of the first set of new multi-purpose shaft transmission box bodies that are longitudinally installed side by side and coaxially. The engine intermediate transmission shaft 1524, which is parallel to the longitudinal axis of the vehicle body and is installed in a longitudinal position, is connected to the output spline shaft (101) of the output shaft universal joint 1523 at the end of the input shaft bevel gear right-angle transmission box housing 1501 of the first set of new multi-purpose shaft transmission box body. At the same time, the engine intermediate transmission shaft 1524 transmits power to the output spline shaft 101 on the rear side of the coaxial universal joint 1525, which is horizontal and extends longitudinally backward, and penetrates into the input shaft bevel gear right-angle transmission box housing 1503 of the second set of new multi-purpose shaft transmission box body installed in a parallel and coaxial longitudinal position and transmits power. The chassis armor can effectively prevent the shock wave of explosive fragments from damaging the internal transmission system of the vehicle chassis.

[0215] At the same time, the universal joint output shaft bevel gear right-angle transmission box housing 1502 of the first new multi-purpose shaft transmission box body installed on the outside of the body chassis of the all-terrain amphibious vehicle or wheeled armored vehicle, the universal joint 115 transmission half shaft 1517 installed on the left side and the universal joint 116 transmission half shaft 1518 installed on the right side, and the matching first integral drive axle 1507 and second integral drive axle 1510 combination components, as well as the universal joint output shaft bevel gear right-angle transmission box housing 1504 of the second new multi-purpose shaft transmission box body, the universal joint 115 transmission half shaft 1519 installed on the left side and the universal joint 116 transmission half shaft 1520 installed on the right side, and the matching third integral drive axle 1513 and fourth integral drive axle 1506 and other combination components are made of high-strength alloy material with a large redundancy design to improve the ability to resist damage to the shock wave of explosive fragments, thereby improving the battlefield survivability of the all-terrain amphibious vehicle or wheeled armored vehicle to maintain rapid movement.

[0216] The constant velocity ball joint used in the novel multi-purpose shaft transmission system of the present invention serves as an example. In this transmission system, it is not specifically a constant velocity ball joint. In order to reduce the actual production and use costs, the constant velocity ball joint used as an example in the present invention can be replaced by a cross-axis universal joint or a flexible universal joint coupling, and other types of universal joints to transmit power.

[0217] The novel multi-purpose shaft transmission system of the present invention is extended to be applied to the structural mode of transmitting power of three-drive axles 6×6 drive wheels and four-drive axles 8×8 drive wheels to serve as a demonstration. In the vehicle body transmission system, it is not specific to three-drive axles and four-drive axles to transmit power. In order to meet the special vehicles' higher requirements for off-road performance and carrying capacity, multiple sets of novel multi-purpose shaft transmission boxes can be matched with multiple groups of independent suspension clevis shaft steering knuckle transmission systems and multiple groups of integral drive axle transmission systems to be arranged and installed on the chassis position of special vehicles with long bodies, and the power can be transmitted in a reasonable matching mode.

[0218] In the present invention, when the integral drive axle used in conjunction with the new multi-purpose shaft transmission system transmits power, the three sets of transmission gears or sprocket groups installed in the integral drive axle gear or sprocket chain transmission box housing serve as a demonstration. In this transmission system, there are not specifically three sets of transmission gears or sprocket combinations. During production and use, the number of transmission gears or sprocket groups installed in the integral drive axle gear or sprocket chain transmission box housing can be increased or decreased according to actual working conditions to achieve the best transmission matching.

[0219] The working principle of the transmission structure in the embodiment is based on the example of a new multi-purpose shaft transmission box adopting a vertically arranged structure to match the integral drive axle transmission power and the matching independent suspension clevis shaft steering knuckle transmission power;

[0220] The new multi-purpose shaft transmission housing shown in Figures 3 and 4 is vertically mounted in the center of the interior of an all-terrain amphibious vehicle or wheeled armored vehicle. The universal joint output shaft bearing seat of the new multi-purpose shaft transmission housing's bevel gear right-angle transmission housing is horizontally mounted in the center of the chassis's front and rear drive axles, ensuring an appropriate spacing between the universal joint output shaft bearing seat and the axle tube of the drive axle, maintaining a parallel power transmission position between the two shafts. The universal joint output spline shaft of the new multi-purpose shaft transmission housing, which is horizontally mounted on the vehicle chassis, is mounted on the left and right ends of two constant velocity ball joint outer balls, secured with center screws. The left and right constant velocity ball joint outer ball joints are simultaneously installed with left and right transmission half-shafts meshing with the left and right inner ball joints. The left and right transmission half-shafts extend to the left and right sides respectively to the drive axle gear or sprocket chain transmission box installed at the left or right end of the integral drive axle bridge tube to transmit power to the constant velocity ball joint universal joint installed on the input shaft end. The rotating constant velocity ball joint universal joint outer ball joint that outputs power to the left drives the transmission half-shaft installed with the inner ball joint to rotate simultaneously, and extends to the left to the input shaft bearing seat of the drive axle gear or sprocket chain transmission box installed at the left end of the integral drive axle bridge tube. The telescopic constant velocity ball joint outer ball joint that extends to the right engages with the inner ball joint, driving the telescopic constant velocity ball joint universal joint and the input shaft first transmission gear or sprocket installed on the constant velocity ball joint universal joint spline shaft between the left and right input shaft bearing seats in the drive axle gear or sprocket chain transmission box housing to rotate simultaneously. The power is transmitted to the second intermediate transmission gear or chain guide wheel installed on the intermediate shaft between the left and right bearing seats in the middle position of the drive axle gear or sprocket chain transmission box that meshes with the input shaft transmission gear, and rotates simultaneously, and drives the third transmission large gear or large sprocket installed on the integral drive shaft in the drive axle gear or sprocket chain transmission box that meshes with the intermediate transmission gear. The integral drive shaft rotates in the integral drive axle bridge tube and transmits power to the drive wheels installed on the left and right ends of the integral drive shaft, which rotate together to drive the vehicle forward.When the vehicle is traveling on an undulating road, the entire drive axle bounces with the undulations of the road surface and moves vertically with the frame chassis or cross-axis with the front axle. In the process of transmitting power, the spline shaft end of the right end of the transmission half-shaft that outputs power to the left is connected and penetrates into the universal joint output shaft of the new multi-purpose shaft transmission box installed on the vehicle chassis. The universal joint output spline shaft on the left end of the right-angle transmission box housing is connected to the center spline hole of the inner ball joint in the outer ball joint of the constant velocity ball joint universal joint, and keeps relatively motionless with the vehicle body in the motion posture. The spline shaft end of the left end of the transmission half shaft that outputs power to the left is connected and penetrates into the center spline hole of the inner ball cage inside the outer ball cage of the constant velocity ball cage universal joint with telescopic function, and it fluctuates with the overall drive axle while maintaining continuous power transmission during the motion posture. In the process of power transmission, the spline shaft end of the left end of the transmission half shaft that outputs power to the right is connected and penetrates into the new multi-purpose gear installed on the chassis of the vehicle body. The universal joint output shaft bevel gear right angle transmission box housing universal joint output spline shaft on the right side of the constant velocity ball cage universal joint outer ball cage center spline hole in the inner ball cage, and in the motion posture to maintain a relatively fixed power transmission position with the vehicle body, the right end of the transmission half shaft that outputs power to the right is connected with the spline shaft end and penetrates into the integral drive axle gear or sprocket chain installed in a horizontal position at the bottom of the vehicle body. The left input spline shaft end outside the transmission box housing extends to the left, and the inner ball cage center spline hole in the outer ball cage of the constant velocity ball cage universal joint with telescopic function The constant velocity cage universal joint installed on the left end of the universal joint output spline shaft and the constant velocity cage universal joint installed on the right end and the constant velocity cage universal joint installed on the left or right end of the input shaft end of the gear transmission box of the integral drive axle can compensate for the angular momentum changes and displacement changes generated by the drive half-shafts under various working conditions, ensuring smooth power transmission of the transmission system.

[0221] FIG2 takes the example of a new multi-purpose shaft transmission box that adopts a vertically arranged and installed structure to match the front-drive independent suspension clevis shaft steering knuckle power transmission. The new multi-purpose shaft transmission box is arranged vertically and installed inside the body of an all-terrain amphibious vehicle or wheeled armored vehicle. The universal joint output shaft bearing seat of the new multi-purpose shaft transmission box, the bevel gear right-angle transmission box, and the universal joint output shaft bearing seat of the new multi-purpose shaft transmission box are arranged horizontally and installed at the position of the front drive axle of the all-terrain amphibious vehicle or wheeled armored vehicle chassis. The output spline shaft of the universal joint output shaft bearing seat of the new multi-purpose shaft transmission box and the axial centerline between the independent suspension clevis shaft steering knuckle on the right side of the body at the front drive axle position of the all-terrain amphibious vehicle or wheeled armored vehicle body remain in the same vertical plane. The left and right ends of the universal joint output shaft of the universal joint output shaft bearing seat of the new multi-purpose shaft transmission box that is arranged horizontally and installed at the chassis position of the all-terrain amphibious vehicle or wheeled armored vehicle are simultaneously installed with two left and right constant velocity ball joint outer ball joints and fastened with a center screw. Preferably, the rotating universal joint output shaft is mounted on the left and right ends of two constant velocity ball joint outer ball joints, and two left and right transmission half-shafts are mounted on the left and right ends of the rotating universal joint output shaft, which are meshed with the central spline holes of the left and right inner ball joints. The two rotating left and right transmission half-shafts extend laterally to the left and right sides respectively to the bearing seats of the left and right sets of independent suspension clevis shaft steering knuckles mounted on the left and right sides of the all-terrain amphibious vehicle or wheeled armored vehicle. The outer ball joints of the constant velocity ball joint universal joint with telescopic function are mounted on the bearing seats of the left and right clevis shaft steering knuckles, which mesh with the central spline holes of the inner ball joints and drive the wheel hub flanges mounted on the right and left clevis shaft steering knuckle bearing seats to rotate together, thereby driving the rotating wheel hub tire to drive the vehicle forward. When the vehicle moves forward on an undulating road, the left and right clevis shaft steering knuckles on the vehicle body bounce with the undulations of the road surface, performing heavy vertical bouncing movements with the vehicle body or cross-axis movements with the front axle. In the transmission system, the inner ends of the left and right transmission half-shafts that preferably output power to the left and right sides at the same time are connected to the left and right transmission half-shaft ends of the constant velocity ball cage universal joints installed at the left and right ends of the new multi-purpose shaft transmission box universal joint output shaft bearing seat arranged horizontally on the frame chassis. In the motion posture, they maintain a relatively fixed power transmission position with the frame chassis, and the outer ends of the left and right transmission half-shafts extend to the left and right sides respectively to the left and right constant velocity ball cage universal joints with telescopic function installed on the left and right sets of clevis shaft steering knuckle bearing seats, which are meshed and connected with each other, and maintain the continuity of power transmission in the transmission system when the left and right sets of clevis shaft steering knuckles make large strokes and fluctuate in the motion posture.

[0222] The above describes the basic principles and main features of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the invention to be protected. The scope of protection of the invention is defined by the attached claims and their equivalents.

Claims

1. The multi-drive axle power transmission structure features of the new multi-purpose shaft transmission system of the all-terrain vehicle include: The novel multi-purpose shaft transmission box adopts a vertically arranged installation mode to transmit power. The front axle of the double-bridge structure is a front double-bridge structure with independent suspension steering of four-wheel drive, and the rear axle of the matching double-bridge structure is a combination of a four-wheel drive integral drive axle double rear axle structure. The first transmission case housing (1402), the second transmission case housing (1403) and the third transmission case housing (1404) of the universal joint output shaft bevel gear right-angle transmission case housing of the novel multi-purpose shaft transmission box installed in a vertical position, the left universal joint output shaft bearing seat (118) and the right universal joint output shaft bearing seat (117) and the universal joint output spline shaft (113) of each transmission case housing are horizontally arranged and installed in the middle position of the front and rear drive axles on the longitudinal axis of the chassis of the all-terrain amphibious vehicle and the armored wheel type vehicle body; The left side universal joint output shaft bearing seat (118) and the right side universal joint output shaft bearing seat (117) and the universal joint output spline shaft (113) of the first set of universal joint output shaft bevel gear right angle transmission box housing (1402) installed in a transverse arrangement are installed in the middle position of the first drive shaft at the front of the vehicle chassis, and the left side independent suspension clevis shaft steering knuckle (1417) and the right side independent suspension clevis shaft steering knuckle (1418) of the first set of drive axles are transversely arranged and installed at the positions of the first drive shafts at the front left and right sides of the vehicle body of an all-terrain amphibious vehicle, a wheeled armored vehicle, etc. The left side universal joint output shaft bearing seat (118) and the right side universal joint output shaft bearing seat (117) and the universal joint output spline shaft (113) of the second set of universal joint output shaft bevel gear right angle transmission box housing (1403) installed in a transverse arrangement are installed in the middle position of the second drive shaft at the front of the vehicle chassis, and the left side independent suspension clevis shaft steering knuckle (1419) and the right side independent suspension clevis shaft steering knuckle (1420) of the second set of drive axles are installed in a transverse arrangement at the positions of the second drive shafts at the front left and right sides of the vehicle body of an all-terrain amphibious vehicle, a wheeled armored vehicle, etc. At the same time, the third integral drive axle (1409) and the fourth integral drive axle (1410) are transversely arranged and installed at the positions of the third drive shaft and the fourth drive shaft at the rear of the vehicle body of an all-terrain amphibious vehicle, a wheeled armored vehicle, etc., and the left universal joint output shaft bearing seat (118) and the right universal joint output shaft bearing seat (117) of the third set of universal joint output shaft bevel gear right-angle transmission box housing (1416) and the universal joint output spline shaft (113) are transversely arranged and installed in the middle position of the two sets of bridge tubes of the third integral drive axle (1409) and the fourth integral drive axle (1410) and maintain the installation position of the three shafts parallel to each other; The first transmission case (1402), the second transmission case (1403) and the third transmission case (1404) of the universal joint output shaft bevel gear right-angle transmission case of the novel multi-purpose shaft transmission case, the left universal joint output bearing seat (118) and the right universal joint output shaft bearing seat (117) and the universal joint output spline shaft (113) of each transmission case are installed in an integral form with the vehicle chassis, and maintain a relatively immobile power transmission position with the vehicle body; The left independent suspension clevis shaft knuckle (1417) of the first drive axle at the lower part of the vehicle chassis is connected to the left side of the vehicle body through a double A-type support arm, the right independent suspension clevis shaft knuckle (1418) is connected to the right side of the vehicle body through a double A-type support arm, the left independent suspension clevis shaft knuckle (1419) of the second drive axle is connected to the left side of the vehicle body through a double A-type support arm, and the right independent suspension clevis shaft knuckle (1420) is connected to the right side of the vehicle body through a double A-type support arm. Meanwhile, the third integral drive axle (1409) and the fourth integral drive axle (1410) are flexibly connected to the vehicle chassis by longitudinal four-link and transverse Panhard rods, and the suspension uses coil springs, air springs or leaf springs to support the vehicle body; The novel multi-purpose shaft transmission housing is composed of three parts: an input shaft bevel gear right-angle transmission housing, an intermediate transmission shaft support protection tube, and a universal joint output shaft bevel gear right-angle transmission housing, wherein the input shaft bevel gear right-angle transmission housing (100) and an input spline shaft (101) and a bevel transmission gear bearing assembly (102) installed inside, an intermediate transmission shaft support protection tube (109) of suitable length and an intermediate transmission shaft (108) and a driven bevel gear (106) assembly installed inside the tube cavity, a universal joint output shaft bevel gear right-angle transmission housing (112) and an intermediate output shaft bevel transmission gear bearing assembly (111) installed inside, and the left end from The right end of the driving bevel gear (119), the driven bevel gear (120) and the end output spline shaft (113) are combined; the input shaft bevel gear right angle transmission box housing (100) is composed of a plurality of groups of cylindrical shells with different diameters, and the input shaft bevel gear right angle transmission box housing (100) includes a driving bevel gear cylindrical shell (103) with a large bearing seat cylindrical shell, a small bearing seat cylindrical shell (104) and a driven bevel gear cylindrical shell (105) and a driven bevel gear bearing seat cylindrical shell (107) are combined to form an irregular input shaft bevel gear right angle transmission box housing, and the driving bevel gear cylindrical shell in the horizontal position input shaft direction is The driven bevel gear cylindrical housing (105) is welded to the small bearing seat cylindrical housing (104) in the vertical direction, and the active bevel gear cylindrical housing (103) and the small bearing cylindrical housing (104) in the horizontal direction are welded to form an integrated structure. The flange of the active bevel gear cylindrical housing (103) in the horizontal direction is fastened with bolts to the flange of the large bearing seat cylindrical housing; the flange of the driven bevel gear bearing seat cylindrical housing (107) in the vertical direction is fastened with bolts to the flange of the driven bevel gear cylindrical housing (105). The input shaft bevel gear right-angle transmission box housing (100) of the novel multi-purpose shaft transmission box body is equipped with an input shaft bevel gear right-angle transmission box housing (100). The input shaft (101) driving bevel gear combination (102) and the intermediate transmission shaft (108) driven bevel gear combination, the universal joint (1522) of the engine transmission shaft or the universal joint (1525) of the intermediate transmission shaft is horizontally positioned at the rear end and the input spline shaft (101) extends longitudinally backwards and penetrates into the input shaft bevel gear right angle transmission box housing (100) of the novel multi-purpose shaft transmission box body which is arranged side by side and coaxially in the longitudinal installation position, two sets of large bearings are installed in the large input shaft bearing seat (103) in the horizontal direction in the input shaft bevel gear right angle transmission box housing (100), and an internal tooth spline shaft sleeve which can mesh with the input spline shaft (101) is installed in the large bearing hole;The inner end of the internal spline shaft sleeve of suitable length is welded with a bevel gear, that is, an integrated internal spline shaft bevel gear assembly (102), two sets of small bearings are installed in the input shaft small bearing seat (104) in the horizontal direction in the input shaft bevel gear right-angle transmission box housing (100), and gaskets for adjusting the gap are installed on the left and right sides of the small bearing hole, and the universal joint (1522) of the engine transmission shaft or the universal joint (1525) of the intermediate transmission shaft input spline shaft (101) is inserted into the internal spline hole of the integrated internal spline shaft bevel gear (102) installed in the large bearing hole in the input shaft bevel gear right-angle transmission box housing (100) and is connected to the input shaft. The spline shaft parts of the shaft (101) mesh with each other and transmit power, and the coaxial optical shaft part passes through the bearing holes of two sets of small bearings installed in the small bearing seat (104) and then installs a universal joint on the spline shaft part exposed at the end (104) of the input shaft bevel gear right angle transmission box housing and fastens it with a large nut. The output spline shaft (101) at the end of the input shaft bevel gear right angle transmission box housing (100) is horizontally positioned outside and longitudinally extends forward and backward. The output spline shaft (101) and the intermediate transmission shaft are connected at the front and rear ends of the universal joint input spline shaft (101), which is the input shaft coaxial spline shaft (101) of the input shaft bevel gear right angle transmission box housing (100); The intermediate transmission shaft support protection tube (109) of the novel multi-purpose shaft transmission housing is composed of a plurality of groups of cylindrical housing tubes of different diameters and lengths, including: a driven bevel gear bearing seat cylindrical housing (107) in the vertical direction, an intermediate transmission shaft support protection tube housing (109) of suitable length and an input shaft bevel gear bearing seat cylindrical housing (110) at the end of the intermediate transmission shaft (108) welded to form a coaxial intermediate transmission shaft support protection tube (109); a driven bevel gear cylindrical housing (105) of the input shaft bevel gear right-angle transmission housing in the vertical direction; and a driven bevel gear cylindrical housing (105) of the input shaft bevel gear right-angle transmission housing. The flange of the driven bevel gear bearing seat cylindrical housing (107) of the intermediate transmission shaft support protection tube is fastened with bolts, and the flange of the input shaft bevel gear bearing seat cylindrical housing (110) of the intermediate transmission shaft support protection tube (109) in the vertical direction is fastened with the flange of the input shaft bevel gear bearing seat cylindrical housing (110) of the universal joint output shaft bevel gear right angle transmission box housing (112) with bolts, and the driven bevel gear bearing seat cylindrical housing (110) of the intermediate transmission shaft support protection tube (109) in the vertical direction is fastened with bolts, and the driven bevel gear bearing seat cylindrical housing (110) of the intermediate transmission shaft support protection tube (109) in the vertical direction is fastened with bolts. The bevel gear (106) is installed in a bearing seat (107) of a cylindrical housing of a driven bevel gear in a vertical direction, and the input shaft active bevel gear (102) installed on the horizontal input spline shaft (101) meshes with the intermediate transmission shaft driven bevel gear (106) installed in the vertical direction to transmit power. An intermediate transmission shaft (108) of suitable length is installed in the tube cavity of the intermediate transmission shaft support protection tube (109) installed in a vertical direction with the horizontal input shaft (101), wherein the two ends of the intermediate transmission shaft are spline shaft parts, and the spline head part at the upper end thereof penetrates into the input shaft conical spline shaft. The spline groove in the central spline hole of the driven bevel gear (106) meshing with the input shaft driving bevel gear (102) in the gear right angle transmission box housing (100) meshes with each other, and the spline head portion at the lower end thereof penetrates into the universal joint output shaft bevel gear right angle transmission box housing (112), and meshes with the spline groove in the central spline hole of the intermediate transmission shaft end input bevel gear (111) meshing with the left output shaft driven bevel gear (119) and the right output shaft driven bevel gear (120) installed on the horizontal universal joint output spline shaft (113) and transmits power; The universal joint output shaft bevel gear right-angle transmission box housing (112) of the novel multi-purpose shaft transmission box is composed of a plurality of groups of cylindrical housings with different diameters, including: a left universal joint output shaft bearing seat cylindrical housing (118) and a right universal joint output shaft bearing seat cylindrical housing (117) in a horizontal position, a universal joint output shaft bevel gear cylindrical housing (112) in the middle position, and a middle transmission shaft terminal output shaft bevel gear cylindrical housing (110) installed in a vertical position, wherein the universal joint output shaft bevel gear cylindrical housing (112) is welded on the left and right sides of the universal joint output shaft bevel gear cylindrical housing (112). There are a left output shaft bearing seat cylindrical housing (118) and a right output shaft bearing seat cylindrical housing (117), a set of intermediate transmission shaft terminal output shaft bevel gear cylindrical housings (110) are installed in the vertical direction of the universal joint output shaft bevel gear cylindrical housing (112), and the flange of the intermediate transmission shaft terminal output shaft bevel gear cylindrical housing (110) of the intermediate transmission shaft support protection tube (109) in the vertical direction is fastened with a flange of the intermediate transmission shaft terminal output shaft bevel gear cylindrical housing (110) of the universal joint output shaft bevel gear right-angle transmission box housing (112) by bolts; The output shaft bevel gear (111) at the end of the intermediate transmission shaft (108) vertically installed in the universal joint output shaft bevel gear right angle transmission box housing (112) is the input shaft bevel gear (111) meshing with the intermediate transmission shaft (108) in the universal joint output shaft bevel gear right angle transmission box housing (112); the input shaft bevel gear (111) meshing with the intermediate transmission shaft (108) and the bearing assembly are installed in the cylindrical housing (110) of the output shaft bevel gear bearing seat at the end of the intermediate transmission shaft, and mesh with the left output shaft driven bevel gear (119) and the right output shaft driven bevel gear (120) installed on the output spline shaft (113) at a horizontal position in the universal joint output shaft bevel gear right angle transmission box housing (112) to transmit power; Two sets of bearings are installed in the left output shaft bearing seat (118) and the right output shaft bearing seat (117) in a horizontal position in the housing (112) of the universal joint output shaft bevel gear right angle transmission box, respectively. The left output shaft driven bevel gear (119) and the right output shaft driven bevel gear (120) are installed in the two sets of bearing holes, respectively. The end gear is inserted into the center hole of the left driven bevel gear (119) and the right driven bevel gear (120). The universal joint output spline shaft (113) is installed at the middle position of the left driven bevel gear (119) and the right driven bevel gear (120) on the end universal joint output spline shaft (113), and a sliding gear sleeve (114) is inserted into the end universal joint output spline shaft (113), wherein the center holes of the left driven bevel gear (119) and the right driven bevel gear (120) are light hole structures without internal tooth spline grooves, and the end universal joint output spline shaft The center hole of the sliding gear sleeve (114) inserted into the output spline shaft (113) has an internal tooth spline groove structure and meshes with the output spline shaft (113). At the same time, the sliding gear sleeve can slide left and right, respectively meshing with the inner side teeth of the driven bevel gear (119) on the left side or the driven bevel gear (120) on the right side of the output spline shaft (113) of the end universal joint, thereby realizing the forward and reverse rotation function of the driven bevel gear of the end output shaft and the output spline shaft, so that the vehicle has a forward and backward reverse gear function. At the same time, the left end of the universal joint output shaft bearing seat (118) and the right end of the universal joint output shaft bearing seat (117) installed in the left universal joint output shaft bearing seat (118) and the right universal joint output shaft bearing seat (117) are installed with the left end constant velocity ball cage universal joint outer ball cage (115) and the right end constant velocity ball cage universal joint (116) at the left and right ends to output power to the left and right sides at the same time, providing convenient conditions for the subsequent arrangement and installation of the transmission half shaft. The half-axle differential can be optionally installed in the universal joint output shaft bevel gear right angle transmission case housing (112), so that the left and right constant velocity ball cage universal joint outer ball cages installed at the left and right ends of the universal joint output spline shaft (113) have a differential function, wherein two sets of bearings are installed in the left universal joint output shaft bearing seat (118) and the right universal joint output shaft bearing seat (117) at a horizontal position in the universal joint output shaft bevel gear right angle transmission case housing (112), respectively, and the boss edges on the left and right sides of the differential housing are respectively installed in the two sets of bearing holes, a differential gear assembly is installed in the differential housing, and a driven bevel gear on the terminal output shaft differential is installed outside the differential housing, and the universal joint is provided with a plurality of bearings. The input shaft bevel gear (111) meshing with the vertically installed intermediate transmission shaft (108) in the output shaft bevel gear right-angle transmission case housing (112) meshes with each other, and at the same time, two left and right transmission spline half shafts are inserted into the bearing holes installed in the left universal joint output shaft bearing seat (118) and the right universal joint output shaft bearing seat (117). The left and right transmission spline half shafts are respectively inserted into the center spline holes of the left and right differential bevel gears installed in the differential housing and mesh with each other. A left constant velocity ball cage universal joint (115) is installed at the end of the left spline half shaft and a right constant velocity ball cage universal joint (116) is installed at the end of the right spline half shaft, and power is transmitted to both sides at the same time; The integral drive axle used for multi-drive axle power transmission is the same integral drive axle, and an integral drive shaft is installed in the integral drive axle bridge tube. The drive axle gear (or sprocket chain) transmission box housing with an elliptical longitudinal section installed at the left or right end of the integral drive axle bridge tube is composed of a shell with a rectangular cross section and two ends of the rectangular shell with semi-cylindrical shell ends and an integral drive axle gear (or sprocket chain) transmission box housing with an elliptical longitudinal section and a suitable length, the interior of which is suitable for installing a drive gear combination or a drive sprocket combination. Taking the drive axle gear transmission box housing as an example, multiple groups of sequentially installed A transmission gear combination arranged and meshing with each other, wherein left and right symmetrical drive axle bridge tube bearing seats are welded on the inner walls on the left and right sides of the position of the integral drive axle bridge tube end in the drive axle gear transmission box housing, an integral drive shaft is installed and penetrated in the left and right symmetrical bridge tube bearing seats, and the first large gear of drive shaft transmission is installed on the integral drive shaft. Bearings are set on the integral drive shaft on the left and right sides of the first large gear, and the bearings are also installed in the symmetrical drive axle bridge tube bearing seats on the inner walls on the left and right sides of the drive axle gear transmission box housing, and the first large gear of transmission installed on the integral drive shaft is kept in the middle transmission position of the left and right bearing seats of the drive axle bridge tube; the drive axle The bearing seats of the intermediate transmission gear combination that are symmetrical on the left and right sides are installed on the inner walls on the left and right sides of the middle position of the axle gear transmission box housing, and the bearings and the intermediate transmission gear shaft are installed in the left and right bearing seats, as well as the second intermediate transmission gear installed on the intermediate transmission gear shaft in the middle position of the left and right groups of bearings; the input shaft bearing seats that are symmetrical on the left and right sides of the input shaft end in the drive axle gear transmission box housing are installed, and the spline shaft of the outer ball cage of the constant velocity ball cage universal joint is inserted into the bearing holes installed in the left and right bearing seats, and the third transmission pinion of the input shaft is installed on the spline shaft of the outer ball cage of the constant velocity ball cage universal joint in the middle position of the left and right groups of bearing seats; the constant velocity ball The spline shaft of the outer ball cage of the cage universal joint passes through the bearing seat at the input shaft end of the drive axle gear transmission box housing, and is fastened with a nut at its protruding part; the left and right sets of bearings are installed in the bearing seats at the left and right ends of the integral drive axle bridge tube, which are used to fix the integral drive shaft installed in the tube cavity of the integral drive axle bridge tube, and there are spline teeth at both ends of the integral drive shaft, which can be installed with flanges for fixing wheel hub tires and flanges for fixing brake discs, and the protruding parts of the flanges at both ends of the integral drive shaft are fastened with nuts, and longitudinal and transverse push-pull rod supports, shock-absorbing spring supports, brake pump supports and other accessories are also welded outside the integral drive axle bridge tube to control the movement posture of the integral drive axle; In order to expand the applicability of the integral drive axle, according to the needs of vehicle use, the first transmission gear installed on the integral drive shaft in the integral drive axle gear transmission box housing can be replaced with a differential drive gear assembly with a differential function, and the integral drive shaft installed in the integral drive axle bridge tube can be replaced with two left and right drive axle half shafts matched with the differential assembly; its characteristics are: : The large gear assembly with differential transmission is installed in the housing of the drive axle gear transmission case. In the middle of the left and right symmetrical bridge tube bearing seats, the boss edges on the left and right sides of the differential housing are respectively embedded in the bridge tube bearing seats on the left and right sides of the drive axle gear transmission case housing. A differential bevel gear assembly is installed in the differential housing. The spline shafts of the left and right drive axle half shafts inserted at the left and right ends of the integral drive axle bridge tube are respectively inserted into the central spline shaft holes of the left and right differential bevel gears in the differential housing and mesh with each other to transmit power. Bearings are installed in the bearing seats at the left and right ends of the integral drive axle bridge tube to fix the left and right drive axle half shafts so that the left and right drive axle half shafts have a differential function. The transmission sprocket and chain combination in the integral drive axle sprocket chain transmission box housing is improved from the transmission gear structure in the integral drive axle gear transmission box housing, wherein the transmission first large gear installed on the integral drive shaft at the middle position of the two symmetrical drive axle bridge tube bearing seats in the integral drive axle gear transmission box housing is replaced with the transmission first large sprocket, the second intermediate transmission gear installed on the intermediate transmission gear shaft in the middle position in the integral drive axle gear transmission box housing is replaced with the intermediate chain guide wheel, the input shaft transmission third small gear installed on the outer ball cage spline shaft of the constant velocity ball cage universal joint between the two symmetrical input shaft bearing seats at the left and right input shaft ends in the integral drive axle gear transmission box housing is replaced with the transmission third small sprocket, a group of transmission chains are used to mesh with each other and transmit power between the transmission sprockets, and the intermediate chain guide wheel assists the chain to run smoothly; the integral drive axle sprocket chain transmission box housing and the integral drive axle gear transmission box housing have the same appearance, the same installation position, the same function, and the same installation position of each shaft in the transmission box housing; The transmission structure characteristics of the special all-terrain amphibious vehicle or wheeled armored vehicle with four-drive axles and 8x8 drive wheels are: The multi-drive axle power transmission structure of the new multi-purpose shaft transmission system of the all-terrain vehicle is composed of a front double-axle structure with independent suspension steering and a four-wheel drive, and a rear axle with a matching double-axle structure, which is composed of a four-wheel drive integral drive axle double rear axle structure; When the universal joint output shaft bevel gear right-angle transmission case housings of the two sets of new multi-purpose shaft transmission cases in the present scheme are applied to two sets of independent suspension horn shaft steering knuckle drive axles, the left universal joint output shaft bearing seat (118) and the right universal joint output shaft bearing seat (117) of the universal joint output shaft bevel gear right-angle transmission case housing (1402) of the first set of new multi-purpose shaft transmission case (1400) and the universal joint output spline shaft (113) extending outward to the left and right sides are transversely arranged and installed in the middle position of the first set of independent suspension drive axle body at the first drive axle position at the front of the body of an all-terrain amphibious vehicle or wheeled armored vehicle, and are located in the middle position of the constant velocity ball cage universal joint (1417) of the left horn shaft steering knuckle and the left drive half shaft (1421) and the constant velocity ball cage universal joint (1418) of the right horn shaft steering knuckle and the right drive half shaft (1415) installed on the left and right sides of the body, and are installed with the body chassis to form an integral structure; When two sets of independent suspension clevis knuckle drive axles are used to transmit power, the coaxial left and right clevis knuckles installed on the left and right sides of the vehicle body of an all-terrain amphibious vehicle, a wheeled armored vehicle, etc. are connected to the vehicle frame through a preferred connection method such as a double A-type support arm, a multi-link trailing arm or a longitudinal swing arm. Taking the first set of independent suspension clevis knuckle transmission power as an example, the universal joint output shaft bevel gear right-angle transmission box housing (140) of the first set of new multi-purpose shaft transmission box body assembled in the front of the vehicle body 2) and the transmission half shaft (1421) for transmitting power to the left and the constant velocity ball cage universal joint (1417) of the first group of independent suspension clevis shaft steering knuckle on the left side of the vehicle body, and the transmission half shaft (1415) for transmitting power to the right and the constant velocity ball cage universal joint (1418) of the first group of independent suspension clevis shaft steering knuckle on the right side of the vehicle body to form a first group of independent suspension steering front axle structure; the constant velocity ball cage universal joint (1417) of the clevis shaft steering knuckle on the left side of the first group of independent suspension and the clevis shaft steering knuckle on the right side are connected to each other. The constant velocity ball cage universal joint (1418) is installed in the center holes of two coaxial clevis shaft steering knuckles on the left and right sides of the vehicle body, and the clevis shaft steering knuckle is connected to the vehicle body through double A-type support arms, and is arranged and installed on the left and right sides of the first driving shaft at the front of the vehicle body of an all-terrain amphibious vehicle, a wheeled armored vehicle, etc. At the same time, the constant velocity ball cage universal joint (1417) of the left clevis shaft steering knuckle and the constant velocity ball cage universal joint (1418) of the right clevis shaft steering knuckle are two coaxial clevis shaft steering knuckles. The axis centerline is located at the left side universal joint output shaft bearing seat (118) and the right side universal joint output shaft bearing seat (117) of the first set of universal joint output shaft bevel gear right angle transmission box housing (1402) installed in an integral structure with the vehicle body and the lower part of the vehicle body, and there is a sufficiently long travel distance between the axis centerlines of the left side clevis shaft steering knuckle constant velocity ball cage universal joint (1417) and the right side clevis shaft steering knuckle constant velocity ball cage universal joint (1418) and the vehicle body chassis; The first set of universal joint output shaft bevel gear right angle transmission case housing (1402) is laterally arranged and installed at the first driving axle position on the vehicle body chassis. The left end of the universal joint output spline shaft (113) is installed with a left end constant velocity ball cage universal joint outer ball cage (115) and fastened with a center screw; the central spline hole of the inner ball cage in the left constant velocity ball cage universal joint outer ball cage (115) installed at the left end of the universal joint output spline shaft (113) of the first set of universal joint output shaft bevel gear right angle transmission case housing (1402) is penetrated and installed with a transmission half shaft (1421) extending laterally to the left; the inner ball cage installed at the right end of the transmission half shaft is meshed with the constant velocity ball cage universal joint outer ball cage (115) and is penetrated and installed with the central spline hole of the inner ball cage for transmitting power to the left. It extends horizontally to the left into the outer ball cage (1417) of a constant velocity ball cage universal joint with telescopic function installed rightward in the steering knuckle shaft hole of the left independent suspension clevis shaft of the vehicle body, and the left end of the transmission half shaft (1421) meshes with the central spline hole of the inner ball cage to transmit power; The right end of the universal joint output spline shaft (113) is simultaneously installed with a right end constant velocity ball cage universal joint outer ball cage (116) at the right end of the universal joint output spline shaft (113) of the first set of universal joint output shaft bevel gear right angle transmission box housing (1402) which is laterally arranged and installed at the first drive axle position on the vehicle body chassis and is fastened with a center screw; the right end of the universal joint output spline shaft (113) of the first set of universal joint output shaft bevel gear right angle transmission box housing (1402) is simultaneously installed with an inner screw at the right end of the universal joint output spline shaft (113) of the first set of universal joint output shaft bevel gear right angle transmission box housing (1402) A transmission half shaft (1415) extending transversely to the right is inserted into the center spline hole of the ball cage, an inner ball cage installed at the left end of the transmission half shaft meshes with an outer ball cage (116) of a constant velocity ball cage universal joint, and the transmission half shaft (1415) for transmitting power to the right, which is inserted into the center spline hole of the inner ball cage, extends transversely to the right to an outer ball cage (1418) of a constant velocity ball cage universal joint with a telescopic function installed to the left in the shaft hole of the steering knuckle of the clevis shaft of the right side of the vehicle body, and the right end of the transmission half shaft (1415) meshes with the center spline hole of the inner ball cage to transmit power; When the universal joint output shaft bevel gear right-angle transmission case housings of the two sets of novel multi-purpose shaft transmission cases in the present scheme are applied to the independent suspension horn shaft steering knuckle, the left universal joint output shaft bearing seat (118) and the right universal joint output shaft bearing seat (117) of the universal joint output shaft bevel gear right-angle transmission case housing (1403) of the second set of novel multi-purpose shaft transmission case (1401) and the universal joint output spline shaft (113) extending outward to the left and right sides are also arranged transversely and installed in the middle position of the second set of independent suspension drive axle body at the second drive axle position at the front of the body of an all-terrain amphibious vehicle or wheeled armored vehicle, and are located in the middle position of the constant velocity ball cage universal joint (1419) and the left drive half shaft (1405) of the left horn shaft steering knuckle and the constant velocity ball cage universal joint (1420) and the right drive half shaft (1406) of the right horn shaft steering knuckle installed on the left and right sides of the body, and are installed with the body chassis to form an integral structure; When two sets of independent suspension clevis knuckle drive axles are used to transmit power, the coaxial left and right clevis knuckles installed on the left and right sides of the vehicle body of an all-terrain amphibious vehicle, a wheeled armored vehicle, etc. are connected to the vehicle frame through a preferred connection method such as a double A-type support arm, a multi-link trailing arm or a longitudinal swing arm. Taking the second set of independent suspension clevis knuckle transmission power as an example, the universal joint output shaft bevel gear right-angle transmission box housing (1) of the second set of new multi-purpose shaft transmission box body assembled in the front of the vehicle body 403) and a transmission half shaft (1405) for transmitting power to the left, and a constant velocity ball cage universal joint (1419) of a second set of independent suspension horn shaft steering knuckle on the left side of the vehicle body, and a transmission half shaft (1406) for transmitting power to the right, and a constant velocity ball cage universal joint (1420) of a second set of independent suspension horn shaft steering knuckle on the right side of the vehicle body to form a second set of independent suspension steering double front axle structure; the constant velocity ball cage universal joint (1419) of the horn shaft steering knuckle on the left side of the second set of independent suspension and the right side The constant velocity ball cage universal joint (1420) of the clevis shaft steering knuckle is installed in the center holes of two coaxial clevis shaft steering knuckles on the left and right sides and the clevis shaft steering knuckle is connected to the vehicle body through double A-type support arms, and is arranged and installed on the left and right sides of the second drive shaft at the front of the vehicle body of an all-terrain amphibious vehicle, a wheeled armored vehicle, etc. At the same time, the constant velocity ball cage universal joint (1419) of the left clevis shaft steering knuckle and the constant velocity ball cage universal joint (1420) of the right clevis shaft steering knuckle of the two coaxial clevis shaft steering knuckles The axis centerline is located between the left side universal joint output shaft bearing seat (118) and the right side universal joint output shaft bearing seat (117) of the second set of universal joint output shaft bevel gear right angle transmission box housing (1403) installed as an integral structure with the vehicle body and the lower part of the vehicle body, and there is a sufficiently long travel distance between the axis centerlines of the left side clevis shaft steering knuckle constant velocity ball cage universal joint (1419) and the right side clevis shaft steering knuckle constant velocity ball cage universal joint (1420) and the vehicle body chassis; The left end of the universal joint output spline shaft (113) is simultaneously installed with a left constant velocity ball cage universal joint outer ball cage (115) at the left end of the universal joint output spline shaft (113) of the second set of universal joint output shaft bevel gear right angle transmission box housing (1403) which is laterally arranged and installed at the second drive axle position on the vehicle body chassis and is fastened with a center screw; the inner ball cage in the left constant velocity ball cage universal joint outer ball cage (115) installed at the left end of the universal joint output spline shaft (113) of the second set of universal joint output shaft bevel gear right angle transmission box housing (1403) is A transmission half shaft (1405) extending laterally to the left is inserted into the center spline hole of the cage, and an inner ball cage installed at the right end of the transmission half shaft meshes with an outer ball cage (115) of a constant velocity ball cage universal joint. The transmission half shaft (1405) transmitting power to the left is inserted into the center spline hole of the inner ball cage and extends laterally to the left to the outer ball cage (1419) of a constant velocity ball cage universal joint with a telescopic function installed rightward in the shaft hole of the steering knuckle of the left independent suspension clevis shaft of the vehicle body, and the left end of the transmission half shaft (1405) meshes with the center spline hole of the inner ball cage to transmit power; The right end of the universal joint output spline shaft (113) is simultaneously installed with a right end constant velocity ball cage universal joint outer ball cage (116) and fastened with a center screw; the inner end of the right end of the universal joint output spline shaft (113) installed at the right end of the second set of universal joint output shaft bevel gear right angle transmission box housing (1403) at the second drive axle position on the vehicle body chassis is provided with a right end constant velocity ball cage universal joint outer ball cage (116) installed at the right end of the universal joint output spline shaft (113) of the second set of universal joint output shaft bevel gear right angle transmission box housing (1403) A transmission half shaft (1406) extending transversely to the right is inserted into the center spline hole of the ball cage, and an inner ball cage installed at the left end of the transmission half shaft meshes with an outer ball cage (116) of a constant velocity ball cage universal joint. The transmission half shaft (1406) transmitting power to the right is inserted into the center spline hole of the inner ball cage and extends transversely to the right to the outer ball cage (1420) of a constant velocity ball cage universal joint with a telescopic function installed to the left in the shaft hole of the steering knuckle of the clevis shaft of the independent suspension on the right side of the vehicle body, and the right end of the transmission half shaft (1406) meshes with the center spline hole of the inner ball cage to transmit power; An inter-axle differential can be optionally installed in the universal joint output shaft bevel gear right-angle transmission box housing (112) of the supporting independent suspension ramshackle steering knuckle between the left universal joint output shaft bearing seat (118) and the right universal joint output shaft bearing seat (117), so that a differential function is provided between the left constant velocity ball cage universal joint (115) installed at the left end of the universal joint output spline shaft (113) at the left end outside the left universal joint output shaft bearing seat (118) and the right constant velocity ball cage universal joint (116) installed at the right end of the universal joint output spline shaft (113) at the right end outside the right universal joint output shaft bearing seat (117), as well as the left and right drive half shafts and tires; The rear axle of the double-bridge structure is a four-wheel drive integral drive axle double rear axle structure, and the third integral drive axle (1409) and the fourth integral drive axle (1410) installed in conjunction with each other are composed of a tubular bridge tube with a suitable length, an elliptical drive axle gear (or sprocket chain) transmission box housing (1411) installed at the left end of the third integral drive axle tube (1409), and an elliptical drive axle gear (or sprocket chain) transmission box housing (1412) installed at the right end of the fourth integral drive axle tube (1410) to form an integral drive axle housing; the two sets of rear-drive integral drive axles share a set of new multi-purpose shaft transmission housings (1404). The left and right universal joint output shaft bearing seats (118) and the right and left universal joint output shaft bearing seats (117) of the universal joint output shaft bevel gear right angle transmission case housing (1416) of the third set of novel multi-purpose shaft transmission case (1404) and the universal joint output spline shaft (113) extending outward to the left and right are horizontally arranged and installed at the rear of the body of the all-terrain amphibious vehicle or wheeled armored vehicle, in the middle position of the third integral drive axle (1409) and the fourth integral drive axle (1410) and installed with the vehicle chassis to form an integral structure, and at the same time, the left and right universal joint output shaft bearing seats (118) and the right and left universal joint output shaft bearing seats (117) of the universal joint output shaft bevel gear right angle transmission case housing (1416) and the universal joint output spline shaft (113) extending outward to the left and right are maintained in a parallel installation position with the third and fourth sets of integral drive axles (1409) of the double rear axle. The ends of the universal joint output spline shaft (113) extending outwardly from the left and right ends of the universal joint output shaft bearing seat (118) and the right universal joint output shaft bearing seat (117) of the third set of new multi-purpose shaft transmission box body (1404) arranged transversely and installed on the chassis of an all-terrain amphibious vehicle or a wheeled armored vehicle are simultaneously installed with the left constant velocity ball cage universal joint outer ball cage (115) and the right constant velocity ball cage universal joint (116) and fastened with a center screw; a transmission half shaft (1407) extending transversely to the left is inserted into the center spline hole of the inner ball cage of the left constant velocity ball cage universal joint outer ball cage (115), and a transmission half shaft (1408) extending transversely to the right is inserted into the center spline hole of the inner ball cage of the right constant velocity ball cage universal joint outer ball cage (116); In order to correspond to the installation position of the left universal joint output shaft bearing seat (118) of the third set of universal joint output shaft bevel gear right angle transmission box housing (1416) and the constant velocity ball cage universal joint (115) installed at the left end of the universal joint output spline shaft (113) end to output power to the left side of the transmission half shaft (1407), the third integral drive axle gear (or sprocket chain) transmission box housing (1411) is preferably installed in a horizontal position at the left end position of the third integral drive axle (1409) bridge tube, and the drive axle gear (or sprocket chain) transmission box housing (1411) installed at the left end of the third integral drive axle (1409) bridge tube can be installed in a horizontal position parallel to the ground, or in a vertical position or in any position convenient for the installation of the transmission half shaft, wherein the preferred horizontal position for transmitting power is the best example; The third integral drive axle gear (or sprocket chain) transmission case housing (1411) installed at the left end of the integral drive axle (1409) is installed in a horizontal position, and the universal joint and the input spline shaft (1413) are installed at the left and rear end of the third integral drive axle (1409), so that the constant velocity ball cage universal joint outer ball cage (1413) with telescopic function installed rightward on the right input spline shaft outside the integral drive axle gear (or sprocket chain) transmission case housing (1411) and the constant velocity ball cage universal joint outer ball cage (115) installed leftward on the left end of the left universal joint output spline shaft (113) outside the left universal joint output shaft bevel gear right-angle transmission case housing (1416) of the third set of new multi-purpose shaft transmission case (1404) are in relative position. The transmission half shaft (1407) for outputting power to the left is preferably arranged horizontally and installed outside the third set of new multi-purpose shaft transmission housing (1404) universal joint output shaft bevel gear right-angle transmission housing (1416) in the left universal joint output spline shaft (113) with the left end thereof mounted to the left in the constant velocity ball cage universal joint outer ball cage (115); the transmission half shaft (1407) is installed in the constant velocity ball cage universal joint outer ball cage (115) and penetrates the central spline hole of the inner ball cage and extends horizontally to the left to the drive axle gear (or sprocket chain) transmission housing (1411) welded to the left end of the bridge tube of the third integral drive axle (1409) and extends to the right outside the right input shaft bearing seat in the constant velocity ball cage universal joint outer ball cage (1413) with telescopic function and meshes with the central spline hole of the inner ball cage to transmit power; In order to correspond to the right side universal joint output shaft bearing seat (117) and the universal joint output spline shaft (113) of the third set of universal joint output shaft bevel gear right angle transmission box housing (1416) and the constant velocity ball cage universal joint (116) installed at the right end, the installation position of the transmission half shaft (1408) that outputs power to the right side, at the same time, the fourth integral drive axle gear (or sprocket chain) transmission box housing (1412) is preferably installed in a horizontal position at the right end position of the fourth integral drive axle (1410) bridge tube, and the drive axle gear (or sprocket chain) transmission box housing (1412) installed at the right end of the fourth integral drive axle (1410) bridge tube is installed in a horizontal position parallel to the ground, or it can be in a vertical state or any position that is convenient for the installation of the transmission half shaft, wherein the preferred horizontal position transmission of power is the best demonstration example; The fourth integral drive axle gear (or sprocket chain) transmission case housing (1412) installed at the right end of the integral drive axle (1410) is installed in a horizontal position, and the universal joint and the input spline shaft (1414) are installed at the right side and front end of the fourth integral drive axle (1410), so that the telescopic constant velocity ball cage universal joint outer ball cage (1414) installed on the left input spline shaft outside the integral drive axle gear (or sprocket chain) transmission case housing (1412) is relatively in position with the constant velocity ball cage universal joint outer ball cage (116) installed on the right end of the right universal joint output spline shaft (113) outside the right universal joint output shaft bearing seat (117) of the universal joint output shaft cone gear right-angle transmission case housing (1416) of the third set of new multi-purpose shaft transmission case (1404). Position; at the same time, the transmission half shaft (1408) that outputs power to the right is preferably arranged horizontally and installed outside the third set of new multi-purpose shaft transmission box body (1404) universal joint output shaft bevel gear right-angle transmission box housing (1416) in which the right end of the universal joint output spline shaft (113) is installed to the right, and the transmission half shaft (1408) that penetrates and is installed in the constant velocity ball cage universal joint outer ball cage (116) and the center spline hole of the inner ball cage is extended horizontally to the right to the drive axle gear (or sprocket chain) transmission box housing (1412) welded on the right end of the bridge tube of the fourth integral drive axle (1410) and extends to the left outside the left input shaft bearing seat, and meshes with the center spline hole of the inner ball cage to transmit power; When the third set of new multi-purpose shaft transmission housing (1404) is used to drive the third set of integral drive axles (1409) and the fourth set of integral drive axles (1410), an inter-axle differential can be optionally installed in the middle position of the universal joint output spline shafts (113) at the left and right ends in the universal joint output shaft bevel gear right-angle transmission housing (1416) of the new multi-purpose shaft transmission housing (1404), so that a differential function is provided between the left constant velocity ball cage universal joint (115) and the transmission half shaft (1407) outputting power to the left, and between the right constant velocity ball cage universal joint (116) and the transmission half shaft (1408) outputting power to the right; The double front axle drive axle extended for four-axle drive is an independent suspension steering axle, and the first set of new multi-purpose shaft transmission housing (1400) and the second set of new multi-purpose shaft transmission housing (1401) of the two sets of independent suspension front drive axles and the double rear axle drive axle are an integral drive axle and share a set of new multi-purpose shaft transmission housing (1404), which are the same new multi-purpose shaft transmission housing. In order to synchronize the rotation speeds of the wheel sets between the double front axles and the double rear axles, the transmission speed ratio of the transmission gear (or sprocket chain) in the transmission housing (1411) of the drive axle gear (or sprocket chain) installed on the third integral drive axle (1409) and the transmission gear (or sprocket chain) in the transmission housing (1412) of the drive axle gear (or sprocket chain) installed on the fourth integral drive axle (1410) can be adjusted to make the rotation speeds of the front wheel group and the rear wheel group the same; When the integral drive axle is used to expand the dual rear axle drive of an all-terrain amphibious vehicle or a wheeled armored vehicle, an inter-axle differential can be optionally installed between the left and right drive axle half-axles in the third integral drive axle gear (or sprocket chain) transmission box housing (1411) and the fourth integral drive axle gear (or sprocket chain) transmission box housing (1412), so that a differential function is provided between the left and right drive axle half-axles in the integral drive axle bridge tube and the drive wheels installed at both ends.

2. The multi-drive axle power transmission structure of the new multi-purpose shaft transmission system for all-terrain vehicles according to claim 1 is extended and applied to the transmission structure of three-drive axle 6x6 drive wheel all-terrain UTV ATV or amphibious vehicle and wheeled armored vehicle, and the transmission structure is characterized in that: the transmission mode of the extended three-drive axle structure is improved from the transmission mode of the four-drive axle, wherein the front axle of the double-axle structure is a four-wheel drive independent suspension steering front double-axle structure, the first group of left-side independent suspension clevis shaft steering knuckle constant velocity ball cage universal joint (1417) and the installed transmission half shaft (1421) for outputting power to the left and the first group of right-side independent suspension clevis shaft steering knuckle constant velocity ball cage universal joint (1418) and the installed transmission half shaft (1415) for outputting power to the right cooperate with the first set of new multi-purpose shaft transmission box ( The universal joint output shaft bevel gear right angle transmission case housing (1402) of the second set of new multi-purpose shaft transmission case (1401) is combined and transmits power, and the constant velocity ball cage universal joint (1419) of the second set of left independent suspension horn shaft steering knuckle and the installed transmission half shaft (1405) for outputting power to the left and the constant velocity ball cage universal joint (1420) of the second set of right independent suspension horn shaft steering knuckle and the installed transmission half shaft (1406) for outputting power to the right cooperate with the universal joint output shaft bevel gear right angle transmission case housing (1403) of the second set of new multi-purpose shaft transmission case (1401) to transmit power; When expanding the three-drive axle 6x6 drive structure, the front double axle of the two sets of independent suspension clevis shaft knuckles is removed from the second set of independent suspension drive axles, and only the first set of left independent suspension clevis shaft knuckles of the first drive axle position are retained. The constant velocity ball cage universal joint (1417) and the transmission half shaft (1421) for outputting power to the left and the first set of right independent suspension clevis shaft knuckles of the first drive axle position are retained. The constant velocity ball cage universal joint (1418) and the transmission half shaft (1415) for outputting power to the right are combined with the universal joint output shaft bevel gear right-angle transmission box housing (1402) of the first set of new multi-purpose shaft transmission box (1400) to transmit power; when expanding the three-drive axle structure, the rear axle of the double-axle structure is an integral drive axle double rear axle structure, and the third set of integral drive axles (1409) and the fourth set of integral drive axles (1410) of the two rear drives are combined. The universal joint output shaft bevel gear right-angle transmission case (1416) of the third set of new multi-purpose shaft transmission case (1404) is shared and combined to transmit power, and the first set of independent suspension front axles and the two sets of integral drive axle rear axles are combined into a transmission structure of three drive axles with 6x6 drive wheels; in the above structure, the second set of independent suspension ram shaft steering knuckles and constant velocity ball cage universal joints and the universal joint output shaft bevel gear right-angle transmission case of the second set of new multi-purpose shaft transmission case are discarded, and the three drive axles only use the universal joint output shaft bevel gear right-angle transmission case (1402) of the first set of new multi-purpose shaft transmission case (1400) and the universal joint output shaft bevel gear right-angle transmission case (1416) of the third set of new multi-purpose shaft transmission case (1404) to transmit power; When the integral drive axle is used to expand the dual rear axle drive of an all-terrain amphibious vehicle or a wheeled armored vehicle, an inter-axle differential can be optionally installed between the left and right drive axle half-axles in the third integral drive axle gear (or sprocket chain) transmission box housing (1411) and the fourth integral drive axle gear (or sprocket chain) transmission box housing (1412), so that a differential function is provided between the left and right drive axle half-axles in the integral drive axle bridge tube and the drive wheels installed at both ends.

3. The multi-drive axle power transmission structure of the new multi-purpose shaft transmission system of the all-terrain vehicle according to claim 1 is extended to be applied to the special all-terrain amphibious vehicle or wheeled armored vehicle with integral four-drive axle 8x8 drive wheels. The structural features are: the front axle of the double-bridge structure is a four-wheel drive integral drive axle double front axle structure, wherein the first integral drive axle (1507) is composed of a tubular bridge tube with a suitable length and an elliptical drive axle gear (or sprocket chain) transmission box housing (1507) installed at the left end position of the first integral drive axle tube (1507). 508) is combined into an integral drive axle housing, the same second integral drive axle (1510) is a double front axle structure composed of a tubular bridge tube with a suitable length and an elliptical drive axle gear (or sprocket chain) transmission box housing (1511) installed at the right end of the second integral drive axle tube (1510) to form an integral drive axle housing, and the first set of new multi-purpose shaft transmission box (1501) is shared between the first set of integral drive axles (1507) and the second set of integral drive axles (1510) of the two sets of front axles of the double axle drive; The left and right universal joint output shaft bearing seats (118) and the right and left universal joint output shaft bearing seats (117) of the universal joint output shaft bevel gear right angle transmission case housing (1502) of the first set of novel multi-purpose shaft transmission case (1501) and the universal joint output spline shaft (113) extending outward to the left and right are transversely arranged and installed at the front chassis position of the body of an all-terrain amphibious vehicle or a wheeled armored vehicle, in the middle position between the first integral drive axle (1507) and the second integral drive axle (1510), and are installed with the body chassis to form an integral structure, and at the same time, the left and right universal joint output shaft bearing seats (118) and the right and left universal joint output shaft bearing seats (117) of the universal joint output shaft bevel gear right angle transmission case housing (1502) and the universal joint output spline shaft (113) extending outward to the left and right are maintained in a parallel installation position with the first and second integral drive axles (1507) of the dual drive front axle. The first set of novel multi-purpose shaft transmission housing (1501) of the universal joint output shaft bevel gear right-angle transmission housing (1502) is laterally arranged and installed on the chassis of an all-terrain amphibious vehicle or a wheeled armored vehicle. A left-end constant velocity ball cage universal joint outer ball cage (115) is installed on the universal joint output spline shaft (113) extending outward from the left side of the universal joint output shaft bearing seat (118). A right-end constant velocity ball cage universal joint outer ball cage (116) is installed on the universal joint output spline shaft (113) extending outward from the right side of the universal joint output shaft bearing seat (117) and fastened with a center screw; At the same time, a transmission half shaft (1517) extending laterally to the left is installed in the inner ball cage center spline hole in the constant velocity ball cage universal joint outer ball cage (115) installed on the left side of the universal joint output shaft bearing seat (118) of the first set of universal joint output shaft bevel gear right angle transmission box housing (1502) and the left end of the universal joint output spline shaft (113). The inner ball cage installed at the right end of the transmission half shaft is connected to the constant velocity ball cage universal joint installed on the left end of the universal joint output spline shaft (113). The outer ball cage (115) of the joint meshes with each other, and the transmission half shaft (1517) installed on the inner ball cage for outputting power to the left extends laterally to the left to the first integral drive axle (1507) of the dual-drive front axle, and the drive axle gear (or sprocket chain) transmission box housing (1508) installed on the left side of the input shaft bearing seat outside the right side of the constant velocity ball cage universal joint outer ball cage (1509) with telescopic function installed on the right side and extends to the right side, and meshes with the central spline hole of the inner ball cage to transmit power; The first integral drive axle gear (or sprocket chain) transmission case housing (1508) installed at the left end of the integral drive axle (1507) is installed in a horizontal position, and the universal joint and the input spline shaft (1509) are installed at the left and rear end of the first integral drive axle (1507), so that the constant velocity ball cage universal joint outer ball cage (1509) with a telescopic function installed rightward on the right input spline shaft outside the integral drive axle gear (or sprocket chain) transmission case housing (1508) and the constant velocity ball cage universal joint outer ball cage (115) installed leftward on the end of the left universal joint output spline shaft (113) outside the left universal joint output shaft bevel gear right-angle transmission case housing (1502) of the first set of new multi-purpose shaft transmission case (1501) are in a relative position ; wherein the transmission half shaft (1517) for outputting power to the left is preferably arranged transversely and installed in the outer ball cage (115) of the constant velocity ball cage universal joint with the end of the universal joint output spline shaft (113) on the left side outside the first set of new multi-purpose shaft transmission box (1501) of the universal joint output shaft bevel gear right-angle transmission box housing (1502) mounted to the left, and at the same time, the transmission half shaft (1517) inserted into the center spline hole of the inner ball cage in the outer ball cage (115) of the constant velocity ball cage universal joint and installed extends transversely to the left to the input shaft bearing seat on the right side outside the transmission box housing (1508) of the drive axle gear (or sprocket chain) welded on the left end of the bridge tube of the first integral drive axle (1507) and extends to the right outside the constant velocity ball cage universal joint with the telescopic function. The outer ball cage (1509) meshes with the center spline hole of the inner ball cage and transmits power; At the same time, a transmission half shaft (1518) extending laterally to the right is installed in the inner ball cage center spline hole of the constant velocity ball cage universal joint outer ball cage (116) installed on the right side of the universal joint output shaft bevel gear right angle transmission box housing (1502) on the right side of the universal joint output shaft bevel gear right angle transmission box housing (1502). The inner ball cage installed on the left end of the transmission half shaft is connected to the constant velocity ball cage universal joint installed on the right end of the universal joint output spline shaft (113). The outer ball cage (116) of the joint meshes with each other, and the transmission half shaft (1518) installed on the inner ball cage for transmitting power to the right extends transversely to the right to the second integral drive axle (1510) of the dual-drive front axle, and the drive axle gear (or sprocket chain) transmission box housing (1511) installed on the right side of the input shaft bearing seat of the drive axle gear (or sprocket chain) is installed on the left side of the universal joint outer ball cage (1512) with telescopic function and extends to the left, and meshes with the central spline hole of the inner ball cage to transmit power; The second integral drive axle gear (or sprocket chain) transmission case housing (1511) installed at the right end of the integral drive axle (1510) is installed in a horizontal position, and the universal joint and the input spline shaft (1512) are installed at the right side and front end of the second integral drive axle (1510), so that the constant velocity ball cage universal joint outer ball cage (1512) with telescopic function installed on the left input spline shaft outside the integral drive axle gear (or sprocket chain) transmission case housing (1511) and the constant velocity ball cage universal joint outer ball cage (116) installed on the right end of the right universal joint output spline shaft (113) outside the right universal joint output shaft bevel gear right-angle transmission case housing (1502) of the first set of new multi-purpose shaft transmission case (1501) are relatively The transmission half shaft (1518) for outputting power to the right is preferably arranged transversely and installed outside the first set of novel multi-purpose shaft transmission housing (1501) of the universal joint output shaft bevel gear right-angle transmission housing (1502) in the constant velocity ball cage universal joint outer ball cage (116) with the end of the universal joint output spline shaft (113) facing rightward, and the transmission half shaft (1518) is installed in the constant velocity ball cage universal joint outer ball cage (116) and the central spline hole of the inner ball cage is penetrated and extended to the right side to the drive axle gear (or sprocket chain) transmission housing (1511) welded on the right end of the bridge tube of the second integral drive axle (1510) and extends to the left side of the input shaft bearing seat outside the transmission housing (1511) of the second integral drive axle (1510) and extends to the left side of the constant velocity ball cage universal joint outer ball cage (1512) with telescopic function, and meshes with the inner ball cage to transmit power; When the universal joint output shaft bevel gear right-angle transmission case housing (1502) of the first set of new multi-purpose shaft transmission case (1501) is used to drive the first integral drive axle (1507) and the second integral drive axle (1510) of two sets of double front axles to transmit power, an inter-axle differential can be optionally installed in the universal joint output shaft bevel gear right-angle transmission case housing (1502) of the first set of new multi-purpose shaft transmission case (1501) at the middle position of the left and right sets of constant velocity ball cage universal joint output spline shafts (113), so that a differential function is provided between the constant velocity ball cage universal joint (115) installed at the left end of the left universal joint output spline shaft (113) and the transmission half shaft (1517) transmitting power to the left and the constant velocity ball cage universal joint (116) installed at the right end of the right universal joint output spline shaft (113) and the transmission half shaft (1518) transmitting power to the right; The integral drive axle is extended to be applied to the transmission system of the four-drive axle 8x8 drive wheels, and the matching new multi-purpose shaft transmission box is applied to the double rear axle of the integral drive axle to transmit power. The rear axle of the double-bridge structure is a four-wheel drive integral drive axle double rear axle structure, wherein the third integral drive axle (1513) is composed of a tubular bridge tube with a suitable length and an elliptical drive axle gear (or sprocket chain) transmission box housing (1516) installed at the left end of the third integral drive axle tube (1513) to form an integral drive axle housing, and the fourth integral drive axle (1506) is composed of a tubular bridge tube with a suitable length and an elliptical drive axle gear (or sprocket chain) transmission box housing (1505) installed at the right end of the fourth integral drive axle tube (1506) to form an integral drive axle housing. The second set of new multi-purpose shaft transmission box (1503) is shared between the third set of integral drive axles (1513) and the fourth set of integral drive axles (1506) of the two sets of rear axles of the double-bridge drive; The left side universal joint output shaft bearing seat (118) and the right side universal joint output shaft bearing seat (117) of the universal joint output shaft bevel gear right angle transmission case (1504) of the second set of new multi-purpose shaft transmission case (1503) and the universal joint output shaft spline shaft (113) extending outward to the left and right sides are transversely arranged and installed at the rear chassis position of the body of the all-terrain amphibious vehicle or wheeled armored vehicle, between the third integral drive axle (1513) and the fourth integral drive axle (1506). The left and right universal joint output shaft bevel gear bearing seats (118) and the right and left universal joint output shaft bevel gear bearing seats (117) of the universal joint output shaft bevel gear right-angle transmission box housing (1504) and the universal joint output spline shaft (113) extending outward to the left and right are installed in parallel with the third and fourth integral drive axles (1513) of the dual-drive rear axle; The universal joint output shaft bevel gear right-angle transmission case housing (1504) of the second set of novel multi-purpose shaft transmission case (1503) arranged transversely and installed on the chassis of an all-terrain amphibious vehicle or wheeled armored vehicle is provided with a left-end constant velocity ball cage universal joint outer ball cage (115) installed on the universal joint output spline shaft (113) extending outward from the left side of the universal joint output shaft bearing seat (118), and a right-end constant velocity ball cage universal joint outer ball cage (116) is installed on the universal joint output spline shaft (113) extending outward from the right side of the universal joint output shaft bearing seat (117) and fastened with a center screw; At the same time, a transmission half shaft (1519) extending laterally to the left is installed in the inner ball cage center spline hole of the constant velocity ball cage universal joint outer ball cage (115) installed on the left side of the universal joint output shaft bearing seat (118) of the second set of universal joint output shaft bevel gear right angle transmission box housing (1504) and the left end of the universal joint output spline shaft (113). The inner ball cage installed at the right end of the transmission half shaft is connected to the constant velocity ball cage universal joint installed on the left end of the universal joint output spline shaft (113). The outer ball cage (115) of the joint meshes with each other, and the transmission half shaft (1519) installed on the inner ball cage for outputting power to the left extends transversely to the left to the third integral drive axle (1513) of the dual-drive rear axle, and the drive axle gear (or sprocket chain) transmission box housing (1516) installed on the left side of the third integral drive axle (1513) of the dual-drive rear axle, and the outer ball cage (1514) of the universal joint with a telescopic function and extending to the right and meshes with the central spline hole of the inner ball cage to transmit power; The third set of integral drive axle gear (or sprocket chain) transmission case housing (1516) installed at the left end of the integral drive axle (1513) is installed in a horizontal position, and the universal joint and the input spline shaft (1514) are installed at the left and rear end of the third integral drive axle (1513), so that the constant velocity ball cage universal joint outer ball cage (1514) with telescopic function installed rightward on the right input spline shaft outside the integral drive axle gear (or sprocket chain) transmission case housing (1516) and the constant velocity ball cage universal joint outer ball cage (115) installed leftward on the end of the left universal joint output spline shaft (113) outside the left universal joint output shaft bevel gear right-angle transmission case housing (1504) of the second set of novel multi-purpose shaft transmission case (1503) are in a relative position. The transmission half shaft (1519) for outputting power to the left is preferably arranged transversely and installed outside the universal joint output shaft bevel gear right-angle transmission box housing (1504) of the second set of novel multi-purpose shaft transmission box body (1503) and inside the constant velocity ball cage universal joint outer ball cage (115) with the end of the universal joint output spline shaft (113) mounted to the left. At the same time, the transmission half shaft (1519) inserted into the center spline hole of the inner ball cage and installed in the constant velocity ball cage universal joint outer ball cage (115) extends transversely to the left to the drive axle gear (or sprocket chain) transmission box housing (1516) welded to the left end of the bridge tube of the third integral drive axle (1513) and extends to the right outside the input shaft bearing seat outside the transmission box housing (1516) and meshes with the center spline hole of the inner ball cage to transmit power. At the same time, a transmission half shaft (1520) extending laterally to the right is installed in the inner ball cage center spline hole of the constant velocity ball cage universal joint outer ball cage (116) installed on the right side of the universal joint output shaft bevel gear right angle transmission box housing (1504) on the right side of the universal joint output shaft bevel gear right angle transmission box housing (1504). The inner ball cage installed on the left end of the transmission half shaft is connected to the constant velocity ball cage universal joint installed on the right end of the universal joint output spline shaft (113). The outer ball cage (116) of the joint meshes with each other, and the transmission half shaft (1520) installed on the inner ball cage for transmitting power to the right extends transversely to the right to the fourth integral drive axle (1506) of the dual-drive rear axle, and the drive axle gear (or sprocket chain) transmission box housing (1505) installed on the right side of the input shaft bearing seat outside the left side of the constant velocity ball cage universal joint outer ball cage (1515) with telescopic function extending to the left is meshed with the central spline hole of the inner ball cage to transmit power; The fourth integral drive axle gear (or sprocket chain) transmission case housing (1505) installed at the right end of the integral drive axle (1506) is installed in a horizontal position, and the universal joint and the input spline shaft (1515) are installed at the right side and front end of the fourth integral drive axle (1506); the constant velocity ball cage universal joint outer ball cage (1515) with telescopic function installed on the left input spline shaft outside the integral drive axle gear (or sprocket chain) transmission case housing (1505) is in a relative position to the constant velocity ball cage universal joint outer ball cage (116) installed on the right end of the right universal joint output spline shaft (113) outside the right universal joint output shaft bevel gear right-angle transmission case housing (1504) of the second set of new multi-purpose shaft transmission case (1503); At the same time, the transmission half shaft (1520) that outputs power to the right is preferably arranged horizontally and installed in the outer ball cage (116) of the constant velocity ball cage universal joint installed at the end of the universal joint output spline shaft (113) on the right side outside the second set of new multi-purpose shaft transmission box body (1503) of the universal joint output shaft bevel gear right-angle transmission box housing (1504). At the same time, the transmission half shaft (1520) is installed in the outer ball cage (116) of the constant velocity ball cage universal joint and the central spline hole of the inner ball cage, and extends horizontally to the right to the input shaft bearing seat of the drive axle gear (or sprocket chain) transmission box housing (1505) welded on the right end of the bridge tube of the fourth integral drive axle (1506). The outer ball cage (1515) of the constant velocity ball cage universal joint with a telescopic function extends to the left and meshes with the central spline hole of the inner ball cage to transmit power; When the universal joint output shaft bevel gear right angle transmission case housing (1504) of the second set of new multi-purpose shaft transmission case (1503) is used to drive the third integral drive axle (1513) and the fourth integral drive axle (1506) of two sets of double rear axle drive axles to transmit power, an inter-axle differential can be optionally installed in the universal joint output shaft bevel gear right angle transmission case housing (1504) of the second set of new multi-purpose shaft transmission case (1503) at the middle position of the left and right sets of constant velocity ball cage universal joint output spline shafts (113), so that a differential function is provided between the constant velocity ball cage universal joint (115) installed at the left end of the left universal joint output spline shaft (113) and the transmission half shaft (1519) transmitting power to the left and the constant velocity ball cage universal joint (116) installed at the right end of the right universal joint output spline shaft (113) and the transmission half shaft (1520) transmitting power to the right; When the use of the integral drive axle is extended to an all-terrain amphibious vehicle or a wheeled armored vehicle body and the four drive axles are used to transmit power, since the four drive axles are of the same integral drive axle structure and do not have the steering function of wheel hub tire deflection, it is necessary to install a gear transmission box housing (1508) of the first integral drive axle, a gear transmission box housing (1511) of the second integral drive axle, a gear transmission box housing (1516) of the third integral drive axle, and a gear transmission box housing (1506) of the fourth integral drive axle. An inter-axle differential assembly is installed between the left and right drive axle half shafts installed in a set of integral drive axle tubes, so that the left and right drive axle half shafts installed on the inter-axle differential assembly in the axle tubes of the first set of integral drive axles (1507), the second set of integral drive axles (1510), the third set of integral drive axles (1513), and the fourth set of integral drive axles (1506) and the drive wheels installed at the ends of the two half shafts have a differential function, so that a rotation speed difference can be generated between the coaxial wheel pairs on the left and right sides of the vehicle chassis, so that the vehicle can generate tire slip and steering functions; At the same time, the vehicle body of the four-drive integral drive axle 8×8 drive wheel structure is equipped with two left and right brake steering systems, wherein the four integral drive axles installed on the vehicle chassis include the first integral drive axle (1507), the second integral drive axle (1510), the third integral drive axle (1513), and the fourth integral drive axle (1506) are equipped with two left and right brake systems, wherein the left brake system is installed on the left wheel hub of the same integral drive axle, and the right brake system is installed on the right wheel hub. When the moving vehicle uses the brake system on one side, the rotation speed of the drive wheel on one side of the vehicle body is reduced, and the drive wheel on the opposite side of the same axis accelerates the rotation speed of the drive axle half shaft and the drive wheel under the action of the differential, so that the drive wheels on the left and right sides of the four integral drive axles simultaneously produce a rotation speed difference, thereby realizing tire sliding steering or turning on the spot.

4. According to claim 1, the multi-drive axle power transmission structure of the new multi-purpose shaft transmission system for an all-terrain vehicle is expanded and applied to the transmission structure of a three-axle drive 6x6 drive wheel and a four-axle drive 8x8 drive wheel structure. The front axle used for the double-axle structure is a front double-axle structure with four-wheel drive independent suspension steering. The left side universal joint output shaft bearing seat (118) and the right side universal joint output shaft bearing seat (117) of the first set of new multi-purpose shaft transmission box body of the universal joint output shaft bevel gear right-angle transmission box housing (1402) must be installed in a horizontal position and transversely on the body chassis of the all-terrain amphibious vehicle or wheeled armored vehicle, so as to better arrange and install the universal joint and the transmission half shaft to transmit power. However, in order to obtain the power transmitted by the remote engine, the input of the first set of new multi-purpose shaft transmission box body installed in a vertical position must be installed in a horizontal position. The shaft bevel gear right angle transmission case housing (1400) and the universal joint output shaft bevel gear right angle transmission case housing (1402) are installed and fixed by rotating the intermediate transmission shaft support protection tube (109) and the flange plate (110) by 90 degrees at the axial position of the intermediate transmission shaft (108), so that the input spline shaft (101) in the input shaft bevel gear right angle transmission case housing (1400) of the novel multi-purpose shaft transmission case installed in a vertical position is in a longitudinal installation position, parallel to the longitudinal axis of the body of the all-terrain amphibious vehicle or wheeled armored vehicle, and has a transmission phase difference of 90 degrees with the universal joint output shaft bevel gear right angle transmission case housing (1402) installed in a transverse arrangement at the chassis position of the body of the all-terrain amphibious vehicle or wheeled armored vehicle at the axial position of the intermediate transmission shaft (108); The left universal joint output shaft bearing seat (118) and the right universal joint output shaft bearing seat (117) of the universal joint output shaft bevel gear right-angle transmission case (1403) of the second set of new multi-purpose shaft transmission case must be installed in a horizontal position and in a transverse arrangement on the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle, so as to better arrange and install the universal joint and the transmission half shaft to transmit power. However, in order to obtain the power transmitted by the remote engine, the input shaft bevel gear right-angle transmission case (1401) of the second set of new multi-purpose shaft transmission case installed in a vertical position and the universal joint output shaft bevel gear right-angle transmission case (1403) must be installed on the intermediate transmission shaft. The intermediate transmission shaft support protection tube (109) and the flange (110) are rotated 90 degrees and installed and fixed at the axial position of the intermediate transmission shaft (108), so that the input spline shaft (101) in the input shaft bevel gear right-angle transmission box housing (1401) of the new multi-purpose shaft transmission box installed in a vertical position is in a longitudinal installation position, parallel to the longitudinal axis of the all-terrain amphibious vehicle or wheeled armored vehicle body, and has a transmission phase difference of 90 degrees with the universal joint output shaft (113) in the universal joint output shaft bevel gear right-angle transmission box housing (1403) installed in the chassis position of the all-terrain amphibious vehicle or wheeled armored vehicle body at the axial position of the intermediate transmission shaft (108); The rear axle of the matching double-axle structure is a four-wheel drive integral drive axle. The left universal joint output shaft bearing seat (118) and the right universal joint output shaft bearing seat (117) of the universal joint output shaft bevel gear right-angle transmission case (1416) of the third set of new multi-purpose shaft transmission case body shared by the two sets of rear integral drive axles of the double rear axle structure must be installed in a horizontal position and arranged transversely on the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle body, so as to better arrange and install the universal joint and the transmission half shaft to transmit power. However, in order to obtain the power transmitted by the remote engine, the input shaft bevel gear right-angle transmission case (1404) of the third set of new multi-purpose shaft transmission case body installed in a vertical position must be connected with the universal joint output shaft bevel gear The right-angle transmission case housing (1416) is installed and fixed by rotating the intermediate transmission shaft support protection tube (109) and the flange (110) by 90 degrees at the axial position of the intermediate transmission shaft (108), so that the input spline shaft (101) in the input shaft bevel gear right-angle transmission case housing (1404) of the novel multi-purpose shaft transmission case installed in a vertical position is in a longitudinal installation position, parallel to the longitudinal axis of the body of the all-terrain amphibious vehicle or wheeled armored vehicle, and has a transmission phase difference of 90 degrees with the universal joint output shaft bevel gear right-angle transmission case housing (1416) installed in a transverse arrangement at the chassis position of the body of the all-terrain amphibious vehicle or wheeled armored vehicle at the axial position of the intermediate transmission shaft (108); The expanded integral drive axle is applied to the transmission structure of the four-axle drive 8x8 drive wheel structure. The front axle of the double-axle structure is a four-wheel drive integral drive axle. The left universal joint output shaft bearing seat (118) and the right universal joint output shaft bearing seat (117) of the first set of new multi-purpose shaft transmission box body, the bevel gear right-angle transmission box housing (1502) shared by the two sets of front integral drive axles must be installed in a horizontal position and arranged horizontally on the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle body, so as to better arrange and install the universal joint and the transmission half shaft to transmit power. However, in order to obtain the power transmitted by the remote engine, the input shaft bevel gear right-angle transmission box housing (1502) of the first set of new multi-purpose shaft transmission box body installed in a vertical position must be installed. 1) The intermediate transmission shaft support protection tube (109) and the flange (110) are rotated 90 degrees and installed and fixed at the axial position of the intermediate transmission shaft (108) with the universal joint output shaft bevel gear right angle transmission box housing (1502), so that the input spline shaft (101) in the input shaft bevel gear right angle transmission box housing (1501) of the novel multi-purpose shaft transmission box installed in a vertical position is in a longitudinal installation position, parallel to the longitudinal axis of the body of the all-terrain amphibious vehicle or wheeled armored vehicle, and has a transmission phase difference of 90 degrees with the universal joint output shaft bevel gear right angle transmission box housing (1502) installed in a transverse arrangement at the chassis position of the body of the all-terrain amphibious vehicle or wheeled armored vehicle at the axial position of the intermediate transmission shaft (108); The rear axle of the matching double-axle structure is a four-wheel drive integral drive axle. The left universal joint output shaft bearing seat (118) and the right universal joint output shaft bearing seat (117) of the second set of new multi-purpose shaft transmission box body common to the two sets of rear integral drive axles of the double rear axle structure must be installed in a horizontal position and transversely arranged on the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle body, so as to better arrange and install the universal joint and the transmission half shaft to transmit power. However, in order to obtain the power transmitted by the remote engine, the input shaft bevel gear right-angle transmission box housing (1503) of the second set of new multi-purpose shaft transmission box body installed in a vertical position must be connected to the universal joint output shaft bevel gear right-angle transmission box housing (1504). The intermediate transmission shaft support protection tube (109) and the flange (110) are rotated 90 degrees and installed and fixed at the axial position of the intermediate transmission shaft (108) by the right-angle transmission case housing (1504), so that the input spline shaft (101) in the input shaft bevel gear right-angle transmission case housing (1503) of the novel multi-purpose shaft transmission case installed in a vertical position is in a longitudinal installation position, parallel to the longitudinal axis of the body of the all-terrain amphibious vehicle or wheeled armored vehicle, and has a transmission phase difference of 90 degrees with the universal joint output shaft bevel gear right-angle transmission case housing (1504) installed in the axial position of the intermediate transmission shaft (108).

5. According to claim 1, the multi-drive axle power transmission structure of the new multi-purpose shaft transmission system for all-terrain vehicles is applied to all-terrain amphibious vehicles or wheeled armored vehicles. The new multi-purpose shaft transmission box for transmitting power must be installed in a vertical arrangement on the chassis of the vehicle body; therefore, the front axle of the double-axle structure is a front double-axle structure of a four-wheel drive independent suspension steering, and the first set of new multi-purpose shaft transmission box is longitudinally installed. The input shaft of the new multi-purpose shaft transmission box is the input spline shaft (101) of the bevel gear right-angle transmission box housing (1400) and is connected in series with the engine. The transmission shaft and transmission shaft universal joint and other combined components are installed in the middle position inside the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle, and the input shaft bevel gear right-angle transmission box housing (1401) of the second set of new multi-purpose shaft transmission box in a longitudinal installation position, the input spline shaft (101) of the new multi-purpose shaft transmission box and the transmission shaft and transmission shaft universal joint and other combined components connected in series with the engine are installed in the middle position inside the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle; the chassis armor can effectively prevent the shock wave of explosive fragments from damaging the internal transmission system of the chassis; The rear axle of the matching double-axle structure is a four-wheel drive integral drive axle. The third set of new multi-purpose shaft transmission box bodies shared by the two rear integral drive axles of the double rear axle structure are longitudinally installed. The input shaft bevel gear right-angle transmission box housing (1404) of the new multi-purpose shaft transmission box body, the input spline shaft (101) and the transmission shaft connected in series with the engine and the transmission shaft universal joint and other combined components are installed in the middle position inside the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle. The transmission shaft and universal joint for outputting power at the engine end are connected in series with the input shaft spline shaft outside the input shaft bevel gear right-angle transmission box housing of each set of longitudinally installed new multi-purpose shaft transmission box bodies, so that each set of new multi-purpose shaft transmission box bodies obtains rotational driving force. A first set of universal joint output shaft bevel gear right angle transmission case housing (1402) of a novel multi-purpose shaft transmission case installed at the outside of the chassis of an all-terrain amphibious vehicle or a wheeled armored vehicle, a universal joint (115) transmission half shaft (1421) installed on the left side and a universal joint (116) transmission half shaft (1406) installed on the right side, and a second set of universal joint output shaft bevel gear right angle transmission case housing (1403) of a matching universal joint (115) transmission half shaft (1421) installed on the left side The third set of universal joint output shaft bevel gear right angle transmission box housing (1416), the combination of the universal joint (115) transmission half shaft (1407) installed on the left side and the universal joint (116) transmission half shaft (1408) installed on the right side, and the matching third integral drive axle (1409) and fourth integral drive axle (1410) and other combined components are made of high-strength alloy material with large redundancy design. The expanded integral drive axle is applied to the transmission structure of the four-axle drive 8x8 drive wheel structure. The front axle of the double-axle structure is the integral drive axle of the four-wheel drive. The first set of new multi-purpose shaft transmission box body input shaft bevel gear right angle transmission box housing (1501) input shaft spline shaft (101) and the transmission shaft (1521) connected in series with the engine, as well as the transmission shaft universal joint (1522) and the terminal output shaft universal joint (1523) and other combined components are installed in the whole ground The middle position of the interior of the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle; and the matching rear axle of the double-axle structure is a four-wheel drive integral drive axle, and the input shaft of the second set of new multi-purpose shaft transmission box body, the input shaft bevel gear right-angle transmission box housing (1503), the input shaft spline shaft (101) and the intermediate transmission shaft (1524) and the transmission shaft universal joint (1525) and other combined components are installed in the middle position of the interior of the chassis of the all-terrain amphibious vehicle or wheeled armored vehicle; The engine terminal output transmission shaft (1521) which is longitudinally mounted parallel to the longitudinal axis of the vehicle body is connected to the input spline shaft (101) of the transmission shaft universal joint (1522); the output spline shaft (101) which is horizontally positioned and longitudinally extends rearward on the rear side of the engine transmission shaft universal joint (1522) penetrates into the input shaft bevel gear right-angle transmission box housing (1501) of the first set of new multi-purpose shaft transmission box body which is arranged side by side and coaxially and longitudinally mounted; the engine intermediate transmission shaft (1524) which is longitudinally mounted parallel to the longitudinal axis of the vehicle body is connected to the first set of new multi-purpose shaft transmission box body The output spline shaft (101) of the output shaft universal joint (1523) at the end of the input shaft bevel gear right-angle transmission box housing (1501) of the box body, and at the same time, the engine intermediate transmission shaft (1524) transmits power to the output spline shaft (101) at the rear side of the coaxial universal joint (1525) in a horizontal position and extending longitudinally backward, and penetrates into the input shaft bevel gear right-angle transmission box housing (1503) of the second set of new multi-purpose shaft transmission box body installed side by side and coaxially in a longitudinal position and transmits power. The chassis armor can effectively prevent the shock wave of explosive fragments from damaging the internal transmission system of the vehicle chassis. The first set of new multi-purpose shaft transmission housings installed at the external position of the chassis of an all-terrain amphibious vehicle or wheeled armored vehicle, the universal joint output shaft bevel gear right-angle transmission housing (1502), the left-side mounted universal joint (115), the transmission half shaft (1517) and the right-side mounted universal joint (116) The transmission half shaft (1518), and the matching first integral drive axle (1507) and second integral drive axle (1510) combination components, as well as the universal joint output shaft bevel gear right-angle transmission box housing (1504) of the second set of new multi-purpose shaft transmission box body, the universal joint (115) transmission half shaft (1519) installed on the left side and the universal joint (116) transmission half shaft (1520) installed on the right side, and the matching third integral drive axle (1513) and fourth integral drive axle (1506) and other combination components are made of high-strength alloy material with large redundancy design to improve the ability to resist the shock wave of explosive fragments, thereby improving the battlefield survivability of all-terrain amphibious vehicles or wheeled armored vehicles to maintain rapid movement; The constant velocity ball cage universal joint used in the novel multi-purpose shaft transmission system of the present invention serves as an example. In the present transmission system, it is not specifically a constant velocity ball cage universal joint. In order to reduce the actual production and use costs, the constant velocity ball cage universal joint of the exemplary example of the present invention can be replaced by a cross-axis universal joint or a flexible universal joint coupling, and other types of universal joints to transmit power; The structural mode of the new multi-purpose shaft transmission system of the present invention for extending the application to the transmission of power by three-drive axles 6×6 drive wheels and four-drive axles 8×8 drive wheels is a demonstration. In the vehicle body transmission system, it is not specific to the transmission of power by three-drive axles and four-drive axles. In order to meet the higher requirements of special vehicles for off-road performance and carrying capacity, multiple sets of new multi-purpose shaft transmission boxes can be matched with multiple sets of independent suspension clevis shaft steering knuckle transmission structures and multiple sets of integral drive axle transmission structures, which can be arranged and installed on the chassis position of special vehicles with long bodies, and the power can be transmitted in a matching combination according to a reasonable matching mode; When the integral drive axle used in conjunction with the novel multi-purpose shaft transmission system in the present invention transmits power, the three transmission gear sets installed in the housing of the integral drive axle gear transmission box serve as a demonstration. In this transmission system, there are not specifically three transmission gear combinations. During production and use, the number of transmission gears or sprocket sets installed in the housing of the integral drive axle gear transmission box can be increased or decreased according to actual working conditions to achieve the best transmission match.

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