Transmission assembly

Abstract

The invention discloses a transmission assembly, and relates to the technical field of automobile transmission. The transmission assembly comprises a front axle frame, a main speed reducer, a front axle transmission shaft, an engine, a gearbox, a transfer case, a rear axle transmission shaft, a spray pump transmission shaft, a rear axle frame and a water-jet propeller, the gearbox is connected between the engine and the transfer case, and the main speed reducer is connected between the front axle frame and the front axle transmission shaft. According to the transmission assembly, the amphibious gear shifting operation function can be achieved through the arrangement of the transfer case and the specific design of the transfer case, power sent by the engine is also sequentially transmitted into the gearbox and then transmitted into the transfer case, gears are controlled by shifting the transfer rod, the engine can transmit the power to the spray pump transmission shaft, and the transmission efficiency is improved. When the vehicle runs, the spraying pump transmission shaft transmits power to the water spraying propeller, so that the water power transmission process is completed, the power of the engine can be switched between a water mode and a land mode, and the adaptive capacity of the vehicle in different environments is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile transmission, in particular to a transmission component. Background Art

[0002] The current engine-driven four-wheel drive system is a driving method that distributes the engine power to the four wheels. It provides better traction and passability than two-wheel drive. By driving the four wheels through the engine, the four-wheel drive system can provide better off-road capability, stability and safety, especially on wet, muddy or soft roads.

[0003] However, this existing four-wheel drive transmission system contains a transfer case, which is one of the core components of the four-wheel drive system. The transfer case distributes the power of the engine to the front axle and the rear axle to drive the rotation of the four wheels, so that the car in the prior art can only move on land. As a result, the transfer case in the prior art cannot adjust the gear position to achieve the switching of the engine power between the water and land modes, thereby limiting the adaptability of the vehicle in different environments. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a transmission assembly to solve the problem that the existing vehicles can only travel on land but cannot travel amphibiously on land and water.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a transmission assembly, including a front axle frame, a main reducer, a front axle drive shaft, an engine, a gearbox, a transfer case, a rear axle drive shaft, a jet pump drive shaft, a rear axle frame and a water jet propulsion device, wherein the gearbox is connected between the engine and the transfer case, the main reducer is connected between the front axle frame and the front axle drive shaft, the power output by the transfer case is transmitted to the front axle frame through the front axle drive shaft and the main reducer, the transfer case includes an input end and a plurality of output ends, and can switch the power output mode according to needs to achieve stepless switching between land driving and water navigation, one of the output ends of the transfer case is connected to the rear axle drive shaft, the rear axle drive shaft is connected to the rear axle frame, the power output by the transfer case is transmitted to the rear axle frame through the rear axle drive shaft, another output end of the transfer case is connected to the jet pump drive shaft, the jet pump drive shaft is connected to the water jet propulsion device, and the power output by the transfer case is transmitted to the water jet propulsion device through the jet pump drive shaft.

[0006] Preferably, the transfer case comprises:

[0007] An assembly box, wherein the assembly box is in a box structure;

[0008] A driving device, wherein the driving device is connected to the assembly box in a transverse interlaced manner, one end of the driving device is connected to the gearbox, and the other end of the driving device is connected to the injection pump transmission shaft;

[0009] A driven device, the driven device is connected to the assembly box in a transversely interlaced manner, one end of the driven device is connected to the front axle drive shaft, and the other end of the driving device is connected to the rear axle drive shaft;

[0010] A speed shift operating device is installed on the top of the assembly box. The speed shift operating device is used to adjust the power output between the driving device and the driven device. The speed shift operating device adopts an electronic control system and can automatically or manually switch the power output mode according to the driving conditions.

[0011] Preferably, the assembly box comprises:

[0012] The lower shell and the upper shell are fastened and installed by bolts, and the lower shell and the upper shell are both made of high-strength aluminum alloy material.

[0013] Preferably, the active device comprises:

[0014] A first main shaft, the first main shaft is rotatably connected with the assembly box through a first bearing;

[0015] A driving gear, the driving gear is inserted and installed on the outside of the first main shaft, and the driving gear is arranged inside the assembly box;

[0016] a first engaging external spline connected to one end of a first main shaft;

[0017] A second spindle, the second spindle is rotatably connected with the assembly box through a second bearing, the second spindle is rotatably connected with the first spindle through a third bearing, and the first spindle and the second spindle both adopt a hollow shaft structure;

[0018] A second engaging external spline, wherein the second engaging external spline is connected to one end of the second main shaft, and the second engaging external spline is arranged opposite to the first engaging external spline;

[0019] A first connecting flange, wherein the other ends of the first main shaft and the second main shaft are both connected with a first connecting flange.

[0020] Preferably, the driven device comprises:

[0021] A third main shaft, the third main shaft is rotatably interlaced with the assembly box;

[0022] A fourth main shaft, the fourth main shaft being rotatably interlaced with the assembly box;

[0023] A driven gear, the driven gear is inserted and installed on the outside of the fourth main shaft, and the driven gear is arranged inside the assembly box, and the driven gear is meshed and connected with the driving gear;

[0024] a third engaging external spline connected to one side of the driven gear;

[0025] A differential case, both ends of which are rotatably connected to the assembly case through a fourth bearing, and the interior of the differential case is filled with lubricating oil;

[0026] A rotary connection mechanism, wherein the rotary connection mechanism is inserted into the inner side of the differential case and connected between the third main shaft and the fourth main shaft;

[0027] a fourth engaging external spline, wherein the fourth engaging external spline is mounted on the differential case and is arranged opposite to the third engaging external spline;

[0028] a second connecting flange, wherein the second connecting flange is connected to an end of the third main shaft away from the fourth main shaft;

[0029] The third connecting flange is connected to the end of the fourth main shaft away from the third main shaft.

[0030] Preferably, the rotary connection mechanism comprises:

[0031] Side shaft gears, the side shaft gears are arranged opposite to each other, and one of the side shaft gears is connected to the end of the third main shaft close to the fourth main shaft, and the other side shaft gear is connected to the end of the fourth main shaft close to the third main shaft;

[0032] A planetary shaft, wherein the planetary shaft is disposed between the half-shaft gears and the planetary shaft is inserted and installed on the differential case;

[0033] Planetary gears are respectively installed on both ends of the planetary shaft through insertion, and the planetary gears are meshed and connected with the half-shaft gears. The planetary gears are made of high-strength alloy steel.

[0034] Preferably, the speed control device comprises:

[0035] An engagement sleeve, wherein the engagement sleeve is respectively arranged on the driving device and the driven device, and an engagement fork is arranged on the outer rotating sleeve of the engagement sleeve;

[0036] A slide bar, the slide bar is fixedly inserted and installed on the top of the engagement fork;

[0037] A connecting seat, the connecting seat is connected to the end of the sliding rod, and the connecting seats are arranged opposite to each other;

[0038] The transfer mechanism is installed through the top of the assembly box, and the bottom of the transfer mechanism cooperates with the connecting seat to move the slide rod. The transfer mechanism adopts an electronic control system, which can automatically control the switching of the coupling sleeve according to the parameters of the vehicle speed and throttle opening to achieve stepless switching of the power output mode.

[0039] Preferably, the speed control device further comprises:

[0040] The bearing seat is fixedly mounted on the top of the assembly box, and a cover plate is installed on the top of the bearing seat. The transfer mechanism is movably connected with the bearing seat and the cover plate, and the bearing seat and the cover plate are made of high-strength aluminum alloy material.

[0041] Preferably, the transfer mechanism comprises:

[0042] A transfer rod, the transfer rod is interlaced and connected with the top of the assembly box;

[0043] A rotating sphere, the rotating sphere is connected to the middle part of the transfer rod, and the rotating sphere is movably connected with the bearing seat and the cover plate;

[0044] A transfer ball, the transfer ball is connected to the bottom end of the transfer rod, and the transfer ball cooperates with the inner cavity of the connecting seat;

[0045] A friction positioning assembly is installed through the interior of the rotating sphere, and is used to frictionally position the relative position between the rotating sphere and the bearing seat. The friction positioning assembly adopts a multi-plate friction plate structure, which can automatically adjust the friction force according to different working conditions to achieve control of the transfer rod position.

[0046] Preferably, the friction positioning assembly comprises:

[0047] A first interpenetrating rod, wherein the first interpenetrating rod is slidably interpenetratingly connected with the rotating sphere, and an extension line of the first interpenetrating rod intersects with the center of the rotating sphere;

[0048] An extrusion friction block, wherein the extrusion friction block is fixedly connected to one end of the first insertion rod, a slide groove matching the extrusion friction block is provided on the rotating sphere, and the extrusion friction block is slidably matched with the inner cavity of the slide groove, and a friction pad is connected to the extrusion friction block;

[0049] A first spring, wherein the first spring is movably sleeved on the outside of the first insertion rod, and the first spring is used for elastically supporting the extrusion friction block;

[0050] A traction rope, one end of which is connected to the other end of the first insertion rod, and the traction rope is made of a high-strength steel wire rope;

[0051] A fixed pulley, wherein a cavity is provided inside the rotating sphere, the fixed pulley is rotatably disposed inside the cavity, and the fixed pulley is used to guide the traction rope;

[0052] A pressing rod, the pressing rod is slidably connected with the transfer rod;

[0053] A second insertion rod, one end of which is connected to the pressing rod, the other end of which is connected to a connecting block, the other end of which is connected to the connecting block, and the second insertion rod is slidably and interlacedly connected to the rotating sphere;

[0054] The second spring is movably sleeved on the outside of the second penetration rod, and the elastic coefficients of the first spring and the second spring can be adjusted according to actual working conditions.

[0055] The present invention discloses a transmission assembly, which has the following beneficial effects:

[0056] Through the setting of the transfer case, the specific design of the transfer case can realize the amphibious gear shifting operation function. The power generated by the engine is also transmitted to the gearbox in sequence, and then to the transfer case. By toggling the transfer lever to control the gear position, the engine can transmit power to the jet pump drive shaft, and the jet pump drive shaft transmits power to the water jet propulsion device, thereby completing the water power transmission process. Not only is the drive axle connected to achieve land driving, but the gearbox is also indirectly connected to the water jet propulsion device, enabling it to operate on water, solving the problem that existing vehicles can only travel on land and cannot travel in both water and land. The power of the engine can be switched between water and land modes, thereby improving the vehicle's adaptability in different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0058] Figure 1 It is a schematic diagram of the top view structure of the present invention;

[0059] Figure 2 It is a schematic diagram of the front structure of the present invention;

[0060] Figure 3 It is a schematic diagram of the three-dimensional structure of the transfer case of the present invention;

[0061] Figure 4 It is a schematic diagram of the coordination structure of the active device and the driven device of the present invention;

[0062] Figure 5 It is a structural schematic diagram of the active device of the present invention;

[0063] Figure 6 It is a structural schematic diagram of the driven device of the present invention;

[0064] Figure 7 It is a structural schematic diagram of the rotary connection mechanism of the present invention;

[0065] Figure 8 It is a schematic diagram of the internal top view of the transfer case of the present invention;

[0066] Fig. 9 It is a schematic diagram of the three-dimensional structure of the speed change control device of the present invention;

[0067] Fig.10 It is a schematic diagram of the side structure of the speed change control device of the present invention;

[0068] Fig.11 It is a schematic diagram of the internal structure of the transfer mechanism of the present invention;

[0069] Fig.12 This is a schematic diagram of the internal structure of the rotating sphere of the present invention;

[0070] Fig.13 It is a partial structural schematic diagram of the friction positioning assembly of the present invention.

[0071] In the figure: 1, front axle frame; 2, main reducer; 3, front axle drive shaft; 4, engine; 5, gearbox; 6, transfer case; 61, assembly box; 611, lower housing; 612, upper housing; 62, driving device; 621, first main shaft; 622, driving gear; 623, first joint external spline; 624, second main shaft; 625, second joint external spline; 626, first connecting flange; 63, driven device; 631, third main shaft; 632, fourth main shaft; 633, driven gear; 634, third joint external spline; 635, differential case; 636, rotary connection mechanism; 6361, half shaft gear; 6362, planetary shaft; 6363, planetary gear; 637, fourth Engagement external spline; 638, second connecting flange; 639, third connecting flange; 64, speed control device; 641, engagement sleeve; 642, slide rod; 643, connecting seat; 644, transfer mechanism; 6441, transfer rod; 6442, rotating sphere; 6443, transfer sphere; 6444, friction positioning assembly; 64441, first insertion rod; 64442, extrusion friction block; 64443, first spring; 64444, traction rope; 64445, fixed pulley; 64446, pressing rod; 64447, second insertion rod; 64448, second spring; 645, bearing seat; 7, rear axle drive shaft; 8, jet pump drive shaft; 9, rear axle frame; 10, water jet propulsion. DETAILED DESCRIPTION

[0072] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0073] The embodiment of the present application provides a transmission assembly to solve the problem that the existing vehicles can only travel on land but cannot travel on land and water. The transfer case 6 is set up, and the specific design of the transfer case 6 can realize the amphibious gear shifting operation function. The power generated by the engine 4 is also transmitted to the gearbox 5 in sequence, and then transmitted to the transfer case 6. The gear position is controlled by toggling the transfer lever 6441, so that the engine 4 can transmit the power to the jet pump drive shaft 8, and the jet pump drive shaft 8 transmits the power to the water jet propulsion unit 10, thereby completing the water power transmission process.

[0074] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0075] An embodiment of the invention discloses a transmission assembly.

[0076] According to the attached Figure 1As shown in Figure 13, it includes a front axle frame 1, a main reducer 2, a front axle drive shaft 3, an engine 4, a gearbox 5, a transfer case 6, a rear axle drive shaft 7, a jet drive shaft 8, a rear axle frame 9 and a water jet propulsion device 10. The gearbox 5 is connected between the engine 4 and the transfer case 6. The main reducer 2 is connected between the front axle frame 1 and the front axle drive shaft 3. The power output by the transfer case 6 is transmitted to the front axle frame 1 through the front axle drive shaft 3 and the main reducer 2. One of the output ends of the transfer case 6 is connected to the rear axle drive shaft 7. The rear axle drive shaft 7 is connected to the rear axle frame 9. The power output by the transfer case 6 is transmitted to the rear axle frame 9 through the rear axle drive shaft 7. Another output end of the transfer case 6 is connected to the jet drive shaft 8. The transfer case 6 includes multiple input ends and output ends, and the power output mode can be flexibly switched according to needs to achieve stepless switching between land driving and water navigation. This feature improves the adaptability and flexibility of the transmission component, and the power output can be freely switched according to different working conditions, which greatly improves the practicality and creativity of the transmission component. The jet pump drive shaft 8 is connected to the water jet propeller 10, and the power output of the transfer case 6 is transmitted to the water jet propeller 10 through the jet pump drive shaft 8. When driving on land, the power emitted by the engine 4 is successively transmitted to the gearbox 5, and then to the transfer case 6. At this time, the transfer lever 6441 is toggled, and the gear position is controlled by the speed control device 64 inside the transfer case 6. When the front and rear axles are driven, the power is transmitted to the universal transmission device composed of the universal joint and the transmission shaft through the driving gear 622 and the driven gear 633, and then to the front axle drive shaft 3 and the rear axle drive shaft 7; the power is transmitted to the front wheels by the front axle drive shaft 3, the main reducer 2 and the front axle frame 1, and transmitted to the rear wheels by the rear axle drive shaft 7, and finally realizes four-wheel drive on land. When the amphibious vehicle enters the water for water operations, the driver steps on the clutch and engages the ship gear. The power generated by the engine 4 is also transmitted to the gearbox 5 in turn, and then to the transfer case 6. At this time, the transfer lever 6441 is toggled, and the gear position is controlled by the speed control device 64 inside the transfer case 6, which is in the jet pump driving state; then it is transmitted to the jet pump drive shaft 8 through the universal transmission device composed of the universal joint and the transmission shaft, so as to realize the transmission of power to the water jet propulsion device 10, thereby completing the water power transmission process, thereby completing the water power transmission process, not only connecting the drive axle to realize land driving, but the gearbox 5 is also indirectly connected to the water jet propulsion device 10, so that it can operate on water, solving the problem that the existing vehicles can only travel on land and cannot travel amphibiously on land and water.

[0077] Furthermore, the transfer case 6 includes: an assembly box 61, which is a box structure; a driving device 62, which is laterally interlaced with the assembly box 61, and one end of the driving device 62 is connected to the gearbox 5, and the other end of the driving device 62 is connected to the injection pump drive shaft 8; a driven device 63, which is laterally interlaced with the assembly box 61, and one end of the driven device 63 is connected to the front axle drive shaft 3, and the other end of the driving device 62 is connected to the rear axle drive shaft 7; a speed shift operating device 64, which is interlaced and installed on the top of the assembly box 61, and the speed shift operating device 64 adopts an electronic control system, and can automatically switch or manually switch the power output mode according to the driving conditions. The introduction of electronic control technology enables the transmission component to intelligently adjust the power output according to the driving conditions, thereby improving the transmission efficiency and driving experience, and embodying a high degree of innovation. The speed control device 64 is used to adjust the power output between the active device 62 and the driven device 63. The transfer case 6 adopts a three-axis structure, and the active device 62 and the driven device 63 are easily protected by the assembly box 61. The power is output to one end of the active device 62 through the gearbox 5, and the water and land gears are adjusted in conjunction with the speed control device 64 to achieve adjustment of the power output of the active device 62 or the driven device 63 according to the usage.

[0078] Furthermore, the assembly box 61 includes: a lower shell 611 and an upper shell 612, which are fastened and installed by bolts, and the lower shell 611 and the upper shell 612 are convenient for protecting the active device 62 and the driven device 63. The lower shell 611 and the upper shell 612 of the assembly box 61 are made of high-strength aluminum alloy material, which has good heat dissipation performance and strength. The selection of advanced materials optimizes the heat dissipation performance and strength of the transmission component, improves the reliability and service life of the transmission component, and embodies a certain degree of creativity.

[0079] Specifically, the active device 62 includes: a first main shaft 621, which is rotatably connected to the assembly box 61 through a first bearing; a driving gear 622, which is installed on the outside of the first main shaft 621 through an insertion, and the driving gear 622 is arranged inside the assembly box 61; a first engaging external spline 623, which is connected to one end of the first main shaft 621; a second main shaft 624, which is rotatably connected to the assembly box 61 through a second bearing, and the second main shaft 624 is rotatably connected to the first main shaft 621 through a third bearing. The first main shaft 621 and the second main shaft 624 adopt a hollow shaft structure, which can effectively reduce the overall weight of the transmission assembly. By optimizing the main shaft structure, the weight of the transmission component is reduced while ensuring the strength, thereby improving the transmission efficiency and fuel economy, and it has certain innovation; the second engaging external spline 625, the second engaging external spline 625 is connected to one end of the second main shaft 624, and the second engaging external spline 625 is arranged opposite to the first engaging external spline 623; the first connecting flange 626, the other ends of the first main shaft 621 and the second main shaft 624 are both connected to the first connecting flange 626. The driven device 63 includes: a third main shaft 631, which is rotatably connected to the assembly box 61; a fourth main shaft 632, which is rotatably connected to the assembly box 61; a driven gear 633, which is installed on the outside of the fourth main shaft 632 and arranged inside the assembly box 61, and is meshed with the driving gear 622; a third engaging external spline 634, which is connected to one side of the driven gear 633; ​​and a differential case 635, both ends of which are rotatably connected to the assembly box 61 through a fourth bearing, and the interior of the differential case 635 is filled with special lubricating oil, which can maintain good lubrication performance under high temperature and high load conditions. The use of special lubricating oil improves the lubrication performance and reliability of the transmission component under extreme working conditions, extends the service life, and embodies a certain degree of creativity; the rotating connection mechanism 636, the rotating connection mechanism 636 is interspersed on the inner side of the differential case 635, and the rotating connection mechanism 636 is connected between the third main shaft 631 and the fourth main shaft 632; the fourth engaging external spline 637, the fourth engaging external spline 637 is installed on the differential case 635, and the fourth engaging external spline 637 and the third engaging external spline 634 are arranged opposite to each other; the second connecting flange 638, the second connecting flange 638 is connected to the end of the third main shaft 631 away from the fourth main shaft 632; the third connecting flange 639, the second connecting flange 638 is connected to the end of the fourth main shaft 632 away from the third main shaft 631.The rotating connection mechanism 636 includes: half-shaft gears 6361, which are arranged opposite to each other, and one of the half-shaft gears 6361 is connected to the end of the third main shaft 631 close to the fourth main shaft 632, and the other half-shaft gear 6361 is connected to the end of the fourth main shaft 632 close to the third main shaft 631; planetary shafts 6362, which are arranged between the half-shaft gears 6361, and the planetary shafts 6362 are inserted and installed on the differential case 635; planetary gears 6363, which are respectively inserted and installed at both ends of the planetary shaft 6362, and the planetary gears 6363 are made of high-strength alloy steel material, and have excellent wear resistance and fatigue strength after special heat treatment. The use of high-performance materials and special treatment greatly improves the wear resistance and strength of key transmission components, improves the reliability and service life of transmission components, and has high innovation. The planetary gear 6363 is meshed and connected with the half-shaft gear 6361. The planetary gears 6363 are fixedly installed at both ends of the planetary shaft 6362, so that the two planetary gears 6363 can rotate synchronously. The rotation and interlacing between the planetary shaft 6362 and the differential case 635 makes the rotation of the planetary shaft 6362 more stable. , through the meshing between the planetary gear 6363 and the half-shaft gear 6361, the fourth main shaft 632 can rotate synchronously with the third main shaft 631, the first main shaft 621 serves as the input shaft, and undertakes the task of power input; the second main shaft 624 serves as the output shaft of the jet pump, and is responsible for power output to the water jet propulsion device 10; and the third main shaft 631 and the fourth main shaft 632 serve as the front and rear axle output shafts, the first main shaft 621 and the second main shaft 624 are located on the same axis, and maintain a parallel relationship with the third main shaft 631 and the fourth main shaft 632. Such a design ensures smooth and efficient power transmission. The first main shaft 621 is the input shaft, and power is transmitted from the shaft to the transfer case 6. One end of the first main shaft 621 uses a second bearing in the inner circular hole at one end of the second main shaft 624. The second bearing is connected to the shaft with a shaft retaining ring, so that the respective rotations of the first main shaft 621 and the second main shaft 624 will not affect each other; the first main shaft 621 uses the first bearing to make the rotation of the first main shaft 621 more stable, and the first connecting flange 626 connected to the first main shaft 621 is connected to the gearbox 5, so that power can be transmitted to the first main shaft 621 through the gearbox 5. The driving gear 622 and the first engaging external spline 623 are fixed to the first main shaft 621 and mesh with the driven gear 633.The second engaging external spline 625 connected to the second main shaft 624, the first engaging external spline 623 connected to the first main shaft 621 and the engaging sleeve 641 form an above-water operation gear. When not in operation, the engaging sleeve 641 cooperates with the first engaging external spline 623 on the first main shaft 621 with its internal spline. By operating the transfer rod 6441, the sliding rod 642 pushes one of the engaging sleeves 641 to slide axially, so that the internal spline of the engaging sleeve 641 engages with the second engaging external spline 625 on the second main shaft 624, so that the first main shaft 621 can rotate synchronously with the second main shaft 624, so that power can be transmitted from the first main shaft 621 to the second main shaft 624 through the engaging sleeve 641 for output. The third main shaft 631 and the fourth main shaft 632 transmit power through the rotary connection mechanism 636. The planetary gear 6363 inside the rotary connection mechanism 636 is installed on the differential case 635 by the planetary shaft 6362. The third connecting flange 639 is connected to the front axle drive shaft 3, and the second connecting flange 638 is connected to the rear axle drive shaft 7 to realize two-way four-axis drive. The driven gear 633 is sleeved on the differential case 635 through a bushing. The third engaging external spline 634 and the fourth engaging external spline 637 are matched with the other engaging sleeve 641 to form a land four-wheel drive gear. When not in operation, the coupling sleeve 641 cooperates with the third coupling external spline 634 on the driven gear 633 through its internal spline, and then by manipulating the transfer rod 6441, the slide bar 642 pushes the above-mentioned coupling sleeve 641 to slide axially, so that the slide bar 642 engages with the fourth coupling external spline 637 on the differential case 635, so that the third main shaft 631 and the fourth main shaft 632 can rotate synchronously, so that the power can be transmitted from the first main shaft 621 to the third main shaft 631 and the fourth main shaft 632 through the driving gear 622, the driven gear 633, the coupling sleeve 641, and the differential case 635 in sequence to achieve front and rear axle four-wheel drive output.

[0080] Furthermore, the speed control device 64 includes: a coupling sleeve 641, which is respectively coupled and sleeved on the driving device 62 and the driven device 63, and a coupling fork is provided on the outer rotation sleeve of the coupling sleeve 641. There are two coupling sleeves 641, coupling fork, slide bar 642 and connecting seat 643, one of which is matched with the driving device 62, and the other coupling sleeve 641 is matched with the driven device 63; a slide bar 642, which is fixedly inserted and installed on the coupling fork. The top portion; the connecting seat 643, which is connected to the end of the slide bar 642, and the connecting seat 643 is arranged opposite to each other; the transfer mechanism 644, which is inserted and installed on the top of the assembly box 61, and the bottom of the transfer mechanism 644 cooperates with the connecting seat 643 to move the slide bar 642. The transfer mechanism 644 adopts an electronic control system, which can automatically control the switching of the coupling sleeve 641 according to parameters such as vehicle speed and throttle opening, and realize the stepless switching of the power output mode. The introduction of electronic control technology realizes the intelligent stepless switching of the power output mode, improves the transmission efficiency and driving experience, and reflects a high degree of creativity. The speed control device 64 also includes: a bearing seat 645, which is fixedly installed on the top of the assembly box 61, and a cover plate is installed on the top of the bearing seat 645, and the transfer mechanism 644 is movably connected with the bearing seat 645 and the cover plate. The bearing seat 645 and the cover plate are made of high-strength aluminum alloy material, and the surface is anodized, which has good corrosion resistance and heat dissipation performance. The use of advanced materials and surface treatment processes has improved the corrosion resistance and heat dissipation performance of key structural parts, improved the reliability and service life of the transmission components, and embodied a certain degree of innovation. The transfer mechanism 644 rotates under the limit of the bearing seat 645. When the transfer mechanism 644 radially rotates relative to the slide bar 642, the use of the coupling sleeve 641 can be selected. When the bottom of the transfer mechanism 644 rotates to the inside of one of the connecting seats 643, the transfer mechanism 644 is rotated and shifted along the axial direction of the coupling sleeve 641 connected thereto, so that the transfer mechanism 644 can manipulate the horizontal movement of the coupling fork to drive the horizontal movement of the coupling sleeve 641 to achieve horizontal sliding engagement of the coupling sleeve 641. Due to the radial rotation of the transfer mechanism 644, it can only rotate to the inside of one of the connecting seats 643 at a time, so it can only drive one coupling sleeve 641 to perform axial sliding engagement, so as to realize the selection of one of the two gears for land and water, and prevent two gears from being engaged at the same time, causing gear disorder.

[0081] Furthermore, the transfer mechanism 644 includes: a transfer rod 6441, which is interlaced and connected with the top of the assembly box 61; a rotating sphere 6442, which is connected to the middle of the transfer rod 6441, and the rotating sphere 6442 is movably interlaced and connected with the bearing seat 645 and the cover plate; a transfer sphere 6443, which is connected to the bottom end of the transfer rod 6441, and the transfer sphere 6443 cooperates with the inner cavity of the connecting seat 643; a friction positioning assembly 6444, which is interlaced and installed inside the rotating sphere 6442, and the friction positioning assembly 6444 is used to frictionally position the relative position between the rotating sphere 6442 and the bearing seat 645, and the friction positioning assembly 6444 adopts a multi-plate friction plate structure, which can automatically adjust the friction force according to different working conditions to achieve precise control of the position of the transfer rod 6441. The multi-plate friction plate structure can automatically adjust the friction force according to the working conditions, realize the precise control of the transfer lever position, improve the control accuracy and reliability of the transmission components, and has high creativity. The friction positioning assembly 6444 includes: a first penetration rod 64441, which is slidably and interlaced with the rotating sphere 6442, and the extension line of the first penetration rod 64441 intersects with the center of the rotating sphere 6442; an extrusion friction block 64442, which is fixedly connected to one end of the first penetration rod 64441, and the rotating sphere 6442 is provided with a slide groove that matches the extrusion friction block 64442, and the extrusion friction block 64442 is slidably matched with the inner cavity of the slide groove, and the extrusion friction block 64442 is connected with a friction pad; a first spring 64443, which is movably sleeved on the outside of the first penetration rod 64441, and the first spring 64443 is used to squeeze the extrusion friction block 64442 elastic support; a traction rope 64444, one end of which is connected to the other end of the first penetration rod 64441; a fixed pulley 64445, a cavity is provided inside the rotating sphere 6442, the fixed pulley 64445 is rotatably arranged inside the cavity, and the fixed pulley 64445 is used to guide the traction rope 64444; a pressing rod 64446, the pressing rod 64446 is slidably and interlacedly connected with the transfer rod 6441; a second penetration rod 64447, one end of the second penetration rod 64447 is connected to the pressing rod 64446, the other end of the second penetration rod 64447 is connected to a connecting block, the other end of the traction rope 64444 is connected to the connecting block, and the second penetration rod 64447 is slidably and interlacedly connected with the rotating sphere 6442;The second spring 64448 is movably sleeved on the outside of the second insertion rod 64447 and is used through the ball groove provided in the bearing seat 645 and the cover plate, so as to facilitate the rotation of the rotating ball 6442 to limit the rotation of the rotating ball 6442, so that the rotation of the rotating ball 6442 is more stable. The rotating ball 6442 is convenient for limiting the movement of the transfer rod 6441, so that the transfer rod 6441 can only rotate with the center of the rotating ball 6442 as the center, so that the rotation of the transfer ball 6443 is more stable, and the transfer ball 6443 and the connecting seat are connected. 643 cooperate with each other, the transfer ball 6443 can choose to cooperate with the inner cavity of the connecting seat 643 to move the connecting seat 643. When the transfer rod 6441 needs to be moved, the pressing rod 64446 needs to be pressed, so that the second insertion rod 64447 drives the connecting block to move vertically downward, so that the connecting block drives the end of the traction rope 64444 to move, so that the traction rope 64444 pulls the first insertion rod 64441 under the guidance of the fixed pulley 64445, and the first insertion rod 64441 is pulled by the first insertion rod 64441. The extrusion friction block 64442 is pulled so that the extrusion friction block 64442 can be stored in the inner cavity of the slide groove. At this time, the friction pad on the extrusion friction block 64442 does not fit the inner wall of the ball groove on the bearing seat 645, so that the friction positioning assembly 6444 can be unlocked to frictionally position the rotating ball 6442, and the transfer rod 6441 can be moved. Under normal conditions, the pressing rod 64446 is not pressed, and the compression deformation of the first spring 64443 facilitates the elastic support of the extrusion friction block 64442, so that the extrusion friction block 6444 The friction pad 64442 fits tightly with the inner wall of the ball groove, thereby increasing friction and preventing the transfer rod 6441 from rotating randomly, making the gear position more stable. The compression deformation of the second spring 64448 facilitates the support and reset of the pressing rod 64446. There are at least two extrusion friction blocks 64442, which is convenient for increasing friction. The elastic coefficients of the first spring 64443 and the second spring 64448 can be adjusted according to actual working conditions to meet different power output requirements. The traction rope 64444 uses a high-strength steel wire rope, which can effectively withstand the tension during high-load transmission. By optimizing the elastic coefficient of the spring and the material of the traction rope, the friction positioning assembly can adapt to different power output requirements and withstand the tension during high-load transmission, which improves the adaptability and reliability of the transmission assembly and reflects a high degree of innovation. ;

[0082] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining 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 present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A transmission assembly, comprising a front axle frame (1), a main reducer (2), a front axle drive shaft (3), an engine (4), a gearbox (5), a transfer case (6), a rear axle drive shaft (7), a jet pump drive shaft (8), a rear axle frame (9) and a water jet propulsion device (10), characterized in that: The gearbox (5) is connected between the engine (4) and the transfer case (6); the main reducer (2) is connected between the front axle frame (1) and the front axle drive shaft (3); the power output by the transfer case (6) is transmitted to the front axle frame (1) through the front axle drive shaft (3) and the main reducer (2); the transfer case (6) comprises an input end and a plurality of output ends, and can switch the power output mode according to needs to realize stepless switching between land driving and water navigation; one of the output ends of the transfer case (6) is connected to the rear axle drive shaft (7); the rear axle drive shaft (7) is connected to the rear axle frame (9); the power output by the transfer case (6) is transmitted to the rear axle frame (9) through the rear axle drive shaft (7); another output end of the transfer case (6) is connected to the jet pump drive shaft (8); the jet pump drive shaft (8) is connected to the water jet propeller (10); the power output by the transfer case (6) is transmitted to the water jet propeller (10) through the jet pump drive shaft (8).

2. A transmission assembly according to claim 1, characterized in that: The transfer case (6) comprises: An assembly box (61), wherein the assembly box (61) is in a box structure; A driving device (62), wherein the driving device (62) is connected to the assembly box (61) in a transversely interlaced manner, and one end of the driving device (62) is connected to the gearbox (5), and the other end of the driving device (62) is connected to the injection pump transmission shaft (8); A driven device (63), the driven device (63) and the assembly box (61) are connected in a transversely interlaced manner, and one end of the driven device (63) is connected to the front axle drive shaft (3), and the other end of the driving device (62) is connected to the rear axle drive shaft (7); A speed shift operating device (64) is installed on the top of the assembly box (61) and is used to adjust the power output between the driving device (62) and the driven device (63). The speed shift operating device (64) adopts an electronic control system and can automatically or manually switch the power output mode according to the driving conditions.

3. A transmission assembly according to claim 2, characterized in that: The assembly box (61) comprises: A lower shell (611) and an upper shell (612), wherein the lower shell (611) and the upper shell (612) are fastened and installed by bolts, and the lower shell (611) and the upper shell (612) are both made of high-strength aluminum alloy material.

4. A transmission assembly according to claim 2, characterized in that: The active device (62) comprises: A first main shaft (621), the first main shaft (621) being rotatably interlaced with the assembly box (61) via a first bearing; A driving gear (622), the driving gear (622) is inserted and installed on the outside of the first main shaft (621), and the driving gear (622) is arranged inside the assembly box (61); A first engaging external spline (623), wherein the first engaging external spline (623) is connected to one end of the first main shaft (621); A second main shaft (624), wherein the second main shaft (624) is rotatably connected to the assembly box (61) via a second bearing, and the second main shaft (624) is rotatably connected to the first main shaft (621) via a third bearing, and both the first main shaft (621) and the second main shaft (624) are hollow shaft structures; A second engaging external spline (625), wherein the second engaging external spline (625) is connected to one end of the second main shaft (624), and the second engaging external spline (625) is arranged opposite to the first engaging external spline (623); A first connecting flange (626), the other ends of the first main shaft (621) and the second main shaft (624) are both connected to the first connecting flange (626).

5. A transmission assembly according to claim 2, characterized in that: The driven device (63) comprises: A third main shaft (631), the third main shaft (631) being rotatably interlaced with the assembly box (61); A fourth main shaft (632), the fourth main shaft (632) being rotatably interlaced with the assembly box (61); A driven gear (633), the driven gear (633) is inserted and installed on the outside of the fourth main shaft (632), and the driven gear (633) is arranged inside the assembly box (61), and the driven gear (633) is meshed and connected with the driving gear (622); a third engaging external spline (634), the third engaging external spline (634) being connected to one side of the driven gear (633); A differential case (635), both ends of which are rotatably connected to the assembly case (61) via a fourth bearing, and the interior of the differential case (635) is filled with lubricating oil; A rotating connection mechanism (636), wherein the rotating connection mechanism (636) is inserted into the inner side of the differential case (635), and the rotating connection mechanism (636) is connected between the third main shaft (631) and the fourth main shaft (632); A fourth engaging external spline (637), the fourth engaging external spline (637) being mounted on the differential case (635), and the fourth engaging external spline (637) and the third engaging external spline (634) being arranged opposite to each other; a second connecting flange (638), the second connecting flange (638) being connected to an end of the third main shaft (631) away from the fourth main shaft (632); The third connecting flange (639), the second connecting flange (638) is connected to the end of the fourth main shaft (632) away from the third main shaft (631).

6. A transmission assembly according to claim 5, characterized in that: The rotating connection mechanism (636) comprises: Side shaft gears (6361), the side shaft gears (6361) are arranged opposite to each other, and one of the side shaft gears (6361) is connected to the end of the third main shaft (631) close to the fourth main shaft (632), and the other side shaft gear (6361) is connected to the end of the fourth main shaft (632) close to the third main shaft (631); A planetary shaft (6362), wherein the planetary shaft (6362) is disposed between the half-shaft gears (6361), and the planetary shaft (6362) is inserted and installed on the differential case (635); Planetary gears (6363), the planetary gears (6363) are respectively installed on both ends of the planetary shaft (6362), and the planetary gears (6363) are meshed and connected with the half-shaft gears (6361), and the planetary gears (6363) are made of high-strength alloy steel material.

7. A transmission assembly according to claim 2, characterized in that: The speed control device (64) comprises: An engagement sleeve (641), the engagement sleeve (641) being respectively engagement-sleeved on the driving device (62) and the driven device (63), and an engagement fork is disposed on the outer rotating sleeve of the engagement sleeve (641); A slide bar (642), the slide bar (642) is fixedly inserted and installed on the top of the engagement fork; A connecting seat (643), the connecting seat (643) is connected to the end of the sliding rod (642), and the connecting seats (643) are arranged opposite to each other; The transfer mechanism (644) is inserted and installed on the top of the assembly box (61), and the bottom of the transfer mechanism (644) cooperates with the connecting seat (643) to move the slide bar (642). The transfer mechanism (644) adopts an electronic control system, which can automatically control the switching of the coupling sleeve (641) according to the parameters of the vehicle speed and the throttle opening to achieve stepless switching of the power output mode.

8. A transmission assembly according to claim 7, characterized in that: The speed control device (64) further comprises: A bearing seat (645), the bearing seat (645) is fixedly mounted on the top of the assembly box (61), and a cover plate is installed on the top of the bearing seat (645), the transfer mechanism (644) is movably connected with the bearing seat (645) and the cover plate, and the bearing seat (645) and the cover plate are made of high-strength aluminum alloy material.

9. A transmission assembly according to claim 7, characterized in that: The transfer mechanism (644) comprises: A transfer rod (6441), the transfer rod (6441) is interlacedly connected with the top of the assembly box (61); A rotating sphere (6442), the rotating sphere (6442) is connected to the middle of the transfer rod (6441), and the rotating sphere (6442) is movably connected with the bearing seat (645) and the cover plate; A transfer ball (6443), the transfer ball (6443) is connected to the bottom end of the transfer rod (6441), and the transfer ball (6443) cooperates with the inner cavity of the connecting seat (643); A friction positioning assembly (6444) is installed in an interlaced manner inside the rotating sphere (6442), and the friction positioning assembly (6444) is used to frictionally position the relative position between the rotating sphere (6442) and the bearing seat (645). The friction positioning assembly (6444) adopts a multi-plate friction plate structure and can automatically adjust the friction force according to different working conditions to achieve control of the position of the transfer rod (6441).

10. A transmission assembly according to claim 9, characterized in that: The friction positioning assembly (6444) includes: A first penetration rod (64441), wherein the first penetration rod (64441) is slidably and interpenetratingly connected to the rotating sphere (6442), and an extension line of the first penetration rod (64441) intersects with the center of the rotating sphere (6442); An extrusion friction block (64442), wherein the extrusion friction block (64442) is fixedly connected to one end of the first insertion rod (64441), a sliding groove matching the extrusion friction block (64442) is provided on the rotating sphere (6442), and the extrusion friction block (64442) is slidably matched with the inner cavity of the sliding groove, and a friction pad is connected to the extrusion friction block (64442); A first spring (64443), wherein the first spring (64443) is movably sleeved on the outside of the first penetration rod (64441), and the first spring (64443) is used for elastically supporting the extrusion friction block (64442); A traction rope (64444), one end of which is connected to the other end of the first insertion rod (64441), and the traction rope (64444) is made of a high-strength steel wire rope; A fixed pulley (64445), wherein a cavity is provided inside the rotating sphere (6442), the fixed pulley (64445) is rotatably disposed inside the cavity, and the fixed pulley (64445) is used to guide the traction rope (64444); A pressing rod (64446), wherein the pressing rod (64446) is slidably interlaced with the transfer rod (6441); A second insertion rod (64447), one end of the second insertion rod (64447) is connected to the pressing rod (64446), the other end of the second insertion rod (64447) is connected to a connecting block, the other end of the traction rope (64444) is connected to the connecting block, and the second insertion rod (64447) is connected to the rotating sphere (6442) in a sliding and interlaced manner; The second spring (64448) is movably mounted on the outside of the second insertion rod (64447), and the elastic coefficients of the first spring (64443) and the second spring (64448) can be adjusted according to actual working conditions.

Images