A planetary anti-slip differential transmission mechanism

Abstract

In order to solve the problem of complex existing differential structures, the present application provides a planetary differential transmission mechanism, including a first base plate and a second base plate, a connecting body and a transmission body are arranged between the first base plate and the second base plate, and the transmission body is sleeved with a central transmission shaft; the transmission body is connected with a right planetary gear set and a left planetary gear set; the right planetary gear set includes a first planetary unit and a second planetary unit, the first planetary unit includes a first ring gear, a first planetary gear, and a first sun gear; the left planetary gear set includes a third planetary unit and a fourth planetary unit, the third planetary unit includes a third ring gear, a third planetary gear, and a third sun gear; it also includes a first transmission gear shaft and a second transmission gear shaft, the first transmission gear shaft is meshed with the first ring gear, and the second transmission gear shaft is meshed with the third ring gear; the first sun gear is connected with a right output part, and the third sun gear is connected with a left output part. The present application structure is provided with two power transmission paths, which can prevent the vehicle from slipping, and the overall structure is simple.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle driving, in particular to a planetary anti-slip differential transmission mechanism. Background Art

[0002] The differential is driven by a bowl gear and an angle gear, and contains side gears and differential pinions. When the vehicle is moving straight, there is no differential effect, and the differential pinion and side gear will rotate with the bowl gear without differential effect. Once the resistance of the inner and outer wheels is different when the vehicle turns, the differential gear set is forced to rotate due to the resistance and then adjust the left and right wheel speeds. With the development of the automobile market, people are gradually pursuing driving under extreme road conditions. For example, when either side of the left or right wheel falls into a pothole or is suspended in the air, the wheel on the suspended side is prone to idling, causing the vehicle to be unable to drive.

[0003] In order to solve the problem of wheel slippage at the output end of the differential in the prior art, the "multi-plate clutch type inter-wheel limited speed differential" disclosed in the Chinese invention patent CN201510506207.0 proposes a planetary differential structure with bevel gears, including planetary bevel gears, differential housing, half-shaft gears, and limited slip friction plates. The differential housing is connected to the planetary bevel gears, and the planetary bevel gears are connected to the half-shaft gears, so that the power of the engine enters the limited speed differential through the transmission shaft, directly drives the differential housing, and then the planetary bevel gears drive the left and right half-shafts. The limited slip friction plates lock the differential housing and the half-shafts by pressing each other to achieve the purpose of anti-skid. This technical structure is complex, and the bevel gears are difficult to match with the half-shaft gears at both ends, resulting in complex assembly. Summary of the invention

[0004] In order to solve the problems of complex differential structure and difficult assembly in the prior art, the present invention provides a planetary anti-slip differential transmission mechanism, which aims to allow the vehicle to continue to travel under extreme working conditions and has a simple structure.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a planetary anti-slip differential transmission mechanism, comprising a first base plate and a second base plate symmetrically arranged, two or more connecting bodies are arranged between the first base plate and the second base plate, a transmission body is arranged between the connecting bodies, and the transmission body is sleeved with a central transmission shaft;

[0006] A left planetary gear set is arranged on the left side of the transmission body, and a right planetary gear set is arranged on the right side of the transmission body, and the left planetary gear set is symmetrically arranged with the right planetary gear set;

[0007] The right planetary gear set includes a first planetary unit and a second planetary unit, wherein the first planetary unit includes a first ring gear, a first planetary gear, and a first sun gear, wherein the first ring gear meshes with the first planetary gear, and the first planetary gear meshes with the first sun gear; the second planetary unit includes a second sun gear and a second planetary gear, wherein the second sun gear is sleeved on the outside of the central transmission shaft, and further includes a second planetary gear shaft, wherein the second planetary gear shaft is connected to the first sun gear, the second planetary gear is sleeved on the outside of the second planetary gear shaft, and the second planetary gear meshes with the second sun gear;

[0008] The left planetary gear set includes a third planetary unit and a fourth planetary unit, wherein the third planetary unit includes a third ring gear, a third planetary gear, and a third sun gear, wherein the third ring gear is meshed with the third planetary gear, and the third planetary gear is meshed with the third sun gear; the fourth planetary unit includes a fourth sun gear and a fourth planetary gear, wherein the fourth sun gear is sleeved on the outside of the central transmission shaft, and further includes a fourth planetary gear shaft, wherein the fourth planetary gear shaft is connected to the third sun gear, the fourth planetary gear is sleeved on the outside of the fourth planetary gear shaft, and the fourth planetary gear is meshed with the fourth sun gear;

[0009] It also includes two or more transmission gear shaft groups, the transmission gear shaft group includes a first transmission gear shaft and a second transmission gear shaft arranged in parallel and meshing with each other, the two ends of the first transmission gear shaft are respectively rotatably connected to the first contact plate and the second base plate, and the two ends of the second transmission gear shaft are also rotatably connected to the first contact plate and the second base plate;

[0010] The first transmission gear shaft is meshed with the first gear ring, and the second transmission gear shaft is meshed with the third gear ring;

[0011] The first sun gear is connected to the right output part, and the third sun gear is connected to the left output part.

[0012] In the specific use of the present application, the first base plate and the second base plate can be selected to have the same structure and can be replaced with each other. The two are arranged symmetrically and both adopt a plate-like structure. The plates are provided with connecting holes; the connector can be selected to have a T-shaped structure, that is, it is composed of a horizontal plate and a vertical plate. The horizontal plate and the vertical plate can be arranged in one piece or can be welded. The two ends of the horizontal plate are respectively abutted against the first base plate and the second base plate. A connecting hole is arranged in the horizontal plate. The first base plate, the second base plate and the connector can be fastened together by passing bolts through the through holes. In order to improve the stability of the overall structure, two or more connectors can be provided, which are generally evenly arranged around the base plate; it also includes a transmission body, which includes a shaft sleeve, a wing plate is integrally arranged or welded on the outer side of the shaft sleeve, an opening is provided on the wing plate, the vertical plate of the connector is clamped in the opening, a central transmission shaft is sleeved in the shaft sleeve, the shaft sleeve and the central transmission shaft can be connected by a flat key or other keys, the central transmission shaft can be divided into a central transmission left shaft and a central transmission right shaft, which are respectively connected in the shaft sleeve by keys, and the central transmission shaft is divided into two parts to facilitate the assembly of the entire structure;

[0013] A left planetary gear set is arranged on the left side of the transmission body, and a right planetary gear set is arranged on the right side of the transmission body. The left planetary gear set and the right planetary gear set can adopt the same structure and can be replaced with each other, but they need to be arranged symmetrically; wherein the right planetary gear set includes a first planetary unit and a second planetary unit, wherein the first planetary unit includes a first gear ring, a first planetary wheel, and a first sun wheel, wherein the first gear ring is annular, including inner teeth of the first gear ring integrally arranged inwardly and outer teeth of the first gear ring integrally arranged outwardly; two or more first planetary wheels can be arranged, and generally three are selected, which are evenly arranged around the first sun wheel, and one side of the first planetary wheel is connected to the first gear ring. The inner teeth of the ring are meshed, and the other side is meshed with the first sun gear, so as to form a planetary transmission. Two or more shaft holes are evenly arranged on the side of the first sun gear along the axis direction of the first sun gear; the second planetary unit includes a second sun gear and a second planetary gear. The second sun gear can be connected to the central transmission shaft through a key and sleeved on the outside of the central transmission shaft. It also includes a second planetary gear shaft. The second planetary gear shaft is rotatably connected to the shaft hole of the first sun gear through a bearing. At the same time, the second planetary gear is connected to the second planetary gear shaft through a key or other existing connection method, sleeved on the outside of the second planetary gear shaft, and the second planetary gear is meshed with the second sun gear;

[0014] In the present application, the left planetary gear set includes a third planetary unit and a fourth planetary unit, the third planetary unit includes a third ring gear, a third planetary gear, and a third sun gear, the third ring gear is meshed with the third planetary gear, and the third planetary gear is meshed with the third sun gear; the fourth planetary unit includes a fourth sun gear and a fourth planetary gear, the fourth sun gear is sleeved on the outside of the central transmission shaft, and also includes a fourth planetary gear shaft, the fourth planetary gear shaft is connected to the third sun gear, the fourth planetary gear is sleeved on the outside of the fourth planetary gear shaft, and the fourth planetary gear is meshed with the fourth sun gear; wherein the third planetary gear is meshed with the first planetary gear The third sun gear has the same structure as the first sun gear, the third ring gear has the same structure as the first ring gear, the third planetary gear has the same structure as the first planetary gear, the fourth sun gear has the same structure as the second sun gear, the fourth planetary gear has the same structure as the second planetary gear, the fourth planetary gear shaft has the same structure as the second planetary gear shaft, and the connection relationship and position relationship of the corresponding components in the left planetary gear set and the right planetary gear set are also the same; the first sun gear is connected to the right output part, and the third sun gear is connected to the left output part, wherein the output part can be selected to output through the connection hole in the prior art, or to output through the connection flange;

[0015] The present application also includes two or more transmission gear shaft groups, and the transmission gear shaft group includes a first transmission gear shaft and a second transmission gear shaft arranged in parallel and meshing with each other, the two ends of the first transmission gear shaft are respectively rotatably connected to the first contact plate and the second base plate through bearings, and the two ends of the second transmission gear shaft are also rotatably connected to the first contact plate and the second base plate through bearings. The first transmission gear shaft or the second transmission gear shaft can also be selected as a spline shaft, or transmission teeth are integrally arranged on the outside of the shaft or are arranged with transmission teeth through a key connection, wherein the first transmission gear shaft is meshed with the outer teeth of the first gear ring, and the second transmission gear shaft is meshed with the outer teeth of the third gear ring.

[0016] In specific application, the first base plate and the second base plate are connected to the axle housing of the vehicle chassis through bearings, and can rotate flexibly in the housing under the drive of external force. If the structure of the present application is installed in the front axle housing, the left output part can be connected to the left front wheel of the vehicle, and the right output part can be connected to the right front wheel of the vehicle. The output end of the vehicle reduction gear box is connected to the first transmission gear shaft, or is connected to the second transmission gear shaft, driving the first transmission gear shaft or the second transmission gear shaft to rotate; on the one hand, when the first transmission gear shaft rotates, it can also drive the first base plate and the second base plate to rotate, and then transmit the power to the connecting body, which is transmitted from the connecting body to the transmission body, and then to the central transmission shaft. That is, when the first transmission gear shaft rotates, it can drive the central transmission shaft to rotate. Since the second sun gear and the fourth sun gear are sleeved on the central transmission shaft, the rotation of the central transmission will drive the second sun gear and the fourth sun gear to rotate, and the second The sun gear rotates to transfer power to the second planetary gear, and the second planetary gear transfers power to the first sun gear, and then the power is output through the right output part connected to the first sun gear; the fourth sun gear rotates to transfer power to the fourth planetary gear, and the fourth planetary gear transfers power to the third sun gear, and then the power is output through the left output part connected to the third sun gear; on the other hand, the rotation of the first transmission gear shaft drives the second transmission gear shaft to rotate synchronously, wherein the first transmission gear shaft transfers power to the first ring gear, and then transfers it to the first planetary gear in turn, transfers power to the first sun gear through the first planetary gear, and then outputs power through the right output part connected to the first sun gear; the second transmission gear shaft transfers power to the third ring gear, and then transfers it to the third planetary gear in turn, transfers power to the third sun gear through the third planetary gear, and then outputs power through the left output part connected to the third sun gear.

[0017] Thus, in specific applications, when external power is transmitted to the structure of the present application, on the one hand, it can be transmitted to the second planetary unit and the fourth planetary unit through the connecting body and the transmission body and then through the central transmission shaft, and then transmitted from the second planetary unit to the first sun gear for right-side power output, and from the fourth planetary unit to the third sun gear for left-side power output; or the external power is transmitted to the first planetary unit through the first ring gear, and then the first sun gear is used for right-side power output, and the external power is transmitted to the third planetary unit through the second ring gear, and then the third sun gear is used for left-side power output, thereby avoiding the existing slipping phenomenon and having a simple structure; through the structure of the present application, it is possible to avoid the need to manually or mechanically switch the steering system when the vehicle slips during driving, and anti-skid phenomenon can be achieved at the same time when turning, and by setting two power transmission paths, it is possible to prevent skidding when encountering deep pits while the vehicle is turning, thereby improving the stability of the vehicle when driving on slippery roads, and if the structure of the present application is applied to off-road vehicles or special vehicles, the off-road passing performance of the vehicle can be improved, and the off-road driving will be smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partially exploded schematic diagram of the planetary anti-slip differential transmission mechanism of the present invention;

[0019] Figure 2 1. It is a schematic diagram of a transmission body of a planetary anti-slip differential transmission mechanism of the present invention from a first perspective;

[0020] Figure 3 2 is a schematic diagram of a transmission body of a planetary anti-slip differential transmission mechanism of the present invention from a second viewing angle;

[0021] Figure 4 It is a schematic diagram of the combination of the transmission body, the connecting body and the central transmission shaft of the planetary anti-slip differential transmission mechanism of the present invention from a first perspective;

[0022] Figure 5 It is a schematic diagram of the combination of the transmission body, the connecting body and the central transmission shaft of the planetary anti-slip differential transmission mechanism of the present invention from a second viewing angle;

[0023] Figure 6 It is a schematic diagram of a combination of a first side plate and a second side plate of a planetary anti-slip differential transmission mechanism of the present invention from a first viewing angle;

[0024] Figure 7 It is a schematic diagram of the combination of the first side plate and the second side plate of the planetary anti-slip differential transmission mechanism of the present invention from a second viewing angle;

[0025] Figure 8 It is a schematic diagram of the planetary anti-slip differential transmission mechanism of the present invention with a connector transmission output from a first viewing angle;

[0026] Fig. 9 It is a schematic diagram of the planetary anti-slip differential transmission mechanism of the present invention with the transmission output of the connector from a second viewing angle;

[0027] Fig.10 It is a schematic diagram of the combination of the first planetary gear shaft, the first planetary gear and the fifth planetary gear from a first viewing angle of the planetary anti-slip differential transmission mechanism of the present invention;

[0028] Fig.11 It is a schematic diagram of the combination of the first planetary gear shaft, the first planetary gear and the fifth planetary gear from a second viewing angle of the planetary anti-slip differential transmission mechanism of the present invention;

[0029] Fig.12 It is a schematic diagram of the combination of the first planetary gear shaft, the first planetary gear and the fifth planetary gear from a third viewing angle of the planetary anti-slip differential transmission mechanism of the present invention;

[0030] Fig.13 It is a schematic diagram of the first gear ring of the planetary anti-slip differential transmission mechanism of the present invention;

[0031] Fig.14 2 is a schematic diagram of a first connecting sleeve of a planetary anti-slip differential transmission mechanism according to the present invention from a first viewing angle;

[0032] Fig.15 It is a schematic diagram of the first connecting sleeve of the planetary anti-slip differential transmission mechanism of the present invention from a second viewing angle;

[0033] Fig.16 2 is a schematic diagram of a second connecting sleeve of a planetary anti-slip differential transmission mechanism according to the present invention from a first viewing angle;

[0034] Fig.17 2 is a schematic diagram of the second connecting sleeve of the planetary anti-slip differential transmission mechanism of the present invention from a second viewing angle;

[0035] Fig.18 It is an exploded schematic diagram of the first planetary unit of the planetary anti-slip differential transmission mechanism of the present invention;

[0036] Fig.19 It is an exploded schematic diagram of the second planetary unit of the planetary anti-slip differential transmission mechanism of the present invention;

[0037] In the figure: 1 first base plate, 2 second base plate, 310 connecting body, 311 web, 320 transmission body, 330 central transmission shaft, 4 right planetary gear set, 410 first planetary unit, 411 first ring gear, 412 first planetary gear, 4121 first planetary gear shaft, 413 first sun gear, 420 second planetary unit, 422 second planetary gear, 423 second sun gear, 430 first side plate, 440 second side plate, 452 fifth planetary gear, 5 left planetary gear set, 601 first transmission gear shaft, 602 second transmission gear shaft, 710 first connecting sleeve, 711 right output flange, 712 first annular protrusion, 720 second connecting sleeve, 721 second chassis, 722 second annular protrusion, 801 second ring gear, 802 fourth ring gear. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0039] As can be seen from the figure, a planetary anti-slip differential transmission mechanism includes a first base plate 1 and a second base plate 2 that are symmetrically arranged, two or more connecting bodies 310 are arranged between the first base plate 1 and the second base plate 2, and a transmission body 320 is arranged between the connecting bodies 310, and the transmission body 320 is sleeved with a central transmission shaft 330;

[0040] The left side of the transmission body 320 is provided with a left planetary gear set 5, and the right side of the transmission body 320 is provided with a right planetary gear set 4, and the left planetary gear set 5 and the right planetary gear set 4 are symmetrically arranged;

[0041] The right planetary gear set 4 includes a first planetary unit 410 and a second planetary unit 420. The first planetary unit 410 includes a first ring gear 411, a first planetary gear 412, and a first sun gear 413. The first ring gear 411 is meshed with the first planetary gear 412, and the first planetary gear 412 is meshed with the first sun gear 413. The second planetary unit 420 includes a second sun gear 423 and a second planetary gear 422. The second sun gear 423 is sleeved on the outside of the central transmission shaft 330, and also includes a second planetary gear 422 shaft. The second planetary gear 422 shaft is connected to the first sun gear 413, the second planetary gear 422 is sleeved on the outside of the second planetary gear 422 shaft, and the second planetary gear 422 is meshed with the second sun gear 423.

[0042] The left planetary gear set 5 includes a third planetary unit and a fourth planetary unit, wherein the third planetary unit includes a third ring gear, a third planetary gear, and a third sun gear, wherein the third ring gear is meshed with the third planetary gear, and the third planetary gear is meshed with the third sun gear; the fourth planetary unit includes a fourth sun gear and a fourth planetary gear, wherein the fourth sun gear is sleeved on the outside of the central transmission shaft 330, and further includes a fourth planetary gear shaft, wherein the fourth planetary gear shaft is connected to the third sun gear, the fourth planetary gear is sleeved on the outside of the fourth planetary gear shaft, and the fourth planetary gear is meshed with the fourth sun gear;

[0043] It also includes two or more transmission gear shaft groups, the transmission gear shaft group includes a first transmission gear shaft 601 and a second transmission gear shaft 602 that are arranged in parallel and mesh with each other, the two ends of the first transmission gear shaft 601 are respectively rotatably connected to the first contact plate and the second base plate 2, and the two ends of the second transmission gear shaft 602 are also rotatably connected to the first contact plate and the second base plate 2;

[0044] The first transmission gear shaft 601 is meshed with the first gear ring 411, and the second transmission gear shaft 602 is meshed with the third gear ring;

[0045] The first sun gear 413 is connected to the right output part, and the third sun gear is connected to the left output part.

[0046] In specific application, the first base plate 1 and the second base plate 2 are connected to the axle housing of the vehicle chassis through bearings, and can rotate flexibly in the housing under the drive of external force. If the structure of the present application is installed in the front axle housing, the left output part can be connected to the left front wheel of the vehicle, and the right output part can be connected to the right front wheel of the vehicle. The output end of the vehicle reduction gear box is connected to the first transmission gear shaft 601, or is connected to the second transmission gear shaft 602, driving the first transmission gear shaft 601 or the second transmission gear shaft 602 to rotate; on the one hand, when the first transmission gear shaft 601 rotates, it can also drive the first base plate 1 and the second base plate 2 to rotate, and then transmit the power to the connecting body 310, which is transmitted from the connecting body 310 to the transmission body 320. When it is transmitted to the central transmission shaft 330, that is, when the first transmission gear shaft 601 rotates, it can drive the central transmission shaft 330 to rotate. Since the second sun gear 423 and the fourth sun gear are sleeved on the central transmission shaft 330, the rotation of the central transmission will drive the second sun gear 423 to rotate and the fourth sun gear 423 to rotate. The sun gear rotates, and the second sun gear 423 rotates to transmit power to the second planetary gear 422, which transmits power to the first sun gear 413, and then outputs power through the right output part connected to the first sun gear 413; the fourth sun gear rotates to transmit power to the fourth planetary gear, which transmits power to the third sun gear, and then outputs power through the left output part connected to the third sun gear; on the other hand, the rotation of the first transmission gear shaft drives the second transmission gear shaft to rotate synchronously, wherein the first transmission gear shaft transmits power to the first ring gear 411, and then transmits it to the first planetary gear 412 in sequence, transmits power to the first sun gear 413 through the first planetary gear 412, and then outputs power through the right output part connected to the first sun gear 413; the second transmission gear shaft transmits power to the third ring gear, and then transmits it to the third planetary gear in sequence, transmits power to the third sun gear through the third planetary gear, and then outputs power through the left output part connected to the third sun gear.

[0047] In this way, in specific applications, external power is transmitted to the structure of the present application. On the one hand, it can be output through the connecting body 310 and the transmission body 320 and then through the second planetary unit 420 and the fourth planetary unit, or the external power can be output through the first planetary unit 410 and the third planetary unit, thereby avoiding the existing slipping phenomenon and having a simple structure.

[0048] Thus, in specific applications, when external power is transmitted to the structure of the present application, on the one hand, it can be transmitted to the second planetary unit 420 and the fourth planetary unit through the connecting body 310 and the transmission body 320 and then through the central transmission shaft, and then transmitted from the second planetary unit 420 to the first sun gear 413 for right-side power output, and from the fourth planetary unit to the third sun gear for left-side power output; or the external power is transmitted to the first planetary unit 410 through the first ring gear 411, and then the first sun gear 413 is used for right-side power output, and the external power is transmitted to the third planetary unit through the second ring gear 801, and then the third sun gear is used for left-side power output, thereby avoiding the existing slipping phenomenon and having a simple structure; through the structure of the present application, it is possible to avoid the need to manually or mechanically switch the steering system when the vehicle slips during driving, and anti-skid phenomenon can be achieved at the same time when turning, and by setting two power transmission paths, it is possible to prevent skidding when encountering a deep pit while the vehicle is turning, thereby improving the stability of the vehicle when driving on slippery roads, and if the structure of the present application is applied to off-road vehicles or special vehicles, the off-road passing performance of the vehicle can be improved, and the off-road driving will be smoother.

[0049] The common structure of the prior art can be selected for the connection between the structure of the present application and the axle housing. For example, by arranging two bearings in the housing, the first base plate 1 and the second base plate 2 are respectively engaged with the inner rings of the two bearings, so that when driven by an external force, the structure of the present application can be driven to rotate for power output; in addition, the connection between the external power and the structure of the present application in the present application can also select the conventional structure in the prior art, such as gear transmission connection, etc.; and the left output part and the external connection structure and the right output part and the external connection structure in the present application can also adopt structures familiar to those skilled in the art, such as flange connection, etc. These three parts do not belong to the scope of protection of the present application, so they are not described in detail here.

[0050] Regarding the tooth profiles of all the gears meshing with each other in the present application, straight teeth or helical teeth known to those skilled in the art can be selected, so that the structure of the present application can be easily assembled and the transmission can be reliable.

[0051] Furthermore, in order to improve the stability of the overall structure of the present application, the right planetary gear set 4 also includes a first side plate 430 and a second side plate 440, and the first side plate 430 and the second side plate 440 are symmetrically arranged on both sides of the first gear ring 411; and the first side plate 430 and the second side plate 440 are connected by bolts; the first side plate 430 and the second side plate 440 can select the same structure, and both can adopt circular plates, and the two are connected by bolts, and a separator can be arranged between the two to prevent the rotation of the first planetary gear 412 from being affected by the small distance; and also includes a first planetary gear shaft 4121, and the two ends of the first planetary gear shaft 4121 are respectively rotatably connected to the first side plate 430 and the second side plate 440 through bearings, and the first planetary gear 412 is sleeved on the outside of the first planetary gear shaft 4121 by a key or other existing connection method; the first side The plate 430 and the second side plate 440 constitute the planetary frame of the first planetary unit 410, thereby improving the transmission stability of the first planetary unit 410; similarly, the left planetary gear set 5 includes a third side plate and a fourth side plate, which are symmetrically arranged on both sides of the third gear ring; and the third side plate and the fourth side plate are connected by bolts; it also includes a third planetary gear shaft, which is rotatably connected to the third side plate and the fourth side plate respectively, and the third planetary gear is sleeved on the outer side of the third planetary gear shaft; wherein the third side plate and the first side plate 430, the second side plate 440 and the fourth side plate can select plates of the same structure, and the first planetary gear shaft 4121 and the third planetary gear shaft can also select shafts of the same structure, and at the same time, the connection relationship and position relationship of the corresponding components are also the same, and the transmission stability of the third planetary unit is improved by setting the third side plate and the fourth side plate.

[0052] Furthermore, the first sun gear 413 of the present application is also provided with a first connecting sleeve 710, and the first connecting sleeve 710 includes a right output flange 711, and a right output part is provided on the right output flange 711. The right output part can be selected to be integrally provided with a connecting hole on the right output flange 711, so as to be conveniently connected to the right front wheel of the vehicle. Two or more first annular protrusions 712 are arranged at intervals on the right output flange 711, and a space for accommodating the second planetary gear 422 and the second sun gear 423 is formed between the two or more first annular protrusions 712. The number of the first annular protrusions 712 can be consistent with the number of the second planetary gears 422, and the first annular protrusions 712 and the second planetary gears 422 are arranged at intervals. By providing the same number of first annular protrusions 712 and second planetary gears 422, the deviation of the rotation axis is small during use, thereby improving the rotation balance of the local structure. degree, which can also improve the stability of this local structure, wherein the first connecting sleeve 710 and the first sun gear 413 can be set as an integral structure or welded, or a through hole can be set on the first annular protrusion 712 of the first connecting sleeve 710, and the first connecting sleeve 710 is fastened to the first sun gear 413 by a bolt member, and the output end connection is facilitated by setting the first connecting sleeve 710; in order to facilitate the connection of the output end on the other side of the device of the present application, a third connecting sleeve is also provided on the third sun gear, and the third connecting sleeve includes a left output flange, and a left output part is provided on the left output flange, and two or more third annular protrusions are arranged on the left output flange at intervals, and a space for accommodating the fourth planetary gear and the fourth sun gear is formed between the two or more third annular protrusions, wherein the third connecting sleeve and the first connecting sleeve 710 can select components with the same structure.

[0053] Furthermore, in the present application, the first planetary gear shaft 4121 is also sleeved with a fifth planetary gear 452, and the fifth planetary gear 452 is sleeved with the first planetary gear shaft 4121 by a key or other existing methods, and also includes a second gear ring 801, the inner side of the second gear ring 801 is meshed with the second planetary gear 422, and the outer side of the second gear ring 801 is meshed with the fifth planetary gear 452; by providing the second gear ring 801 and the fifth planetary gear 452 meshed therewith, the transmission of the first planetary unit 410 and the second planetary unit 420 is more stable; similarly, in the present application The third planetary gear shaft is also sleeved with the sixth planetary gear, and also includes a fourth gear ring 802, the inner side of the fourth gear ring 802 is meshed with the fourth planetary gear, and the outer side of the fourth gear ring 802 is meshed with the fifth planetary gear 452, wherein the fourth gear ring 802 can be selected to be the same component as the second gear ring 801, and the sixth planetary gear can be selected to be the same component as the fifth planetary gear 452. By providing the fourth gear ring 802 and the sixth planetary gear meshed therewith, the transmission of the third planetary unit and the fourth planetary unit is made more stable, thereby improving the stability of the overall structure.

[0054] Furthermore, in the present application, the second side plate 440 is also connected to a second connecting sleeve 720, which includes a second chassis 721, on which two or more second annular protrusions 722 are arranged at intervals, and a space for accommodating the fifth planetary gear 452 and the second gear ring 801 is formed between the two or more second annular protrusions 722; by providing the second connecting sleeve 720, not only can the second gear ring 801 be effectively protected to prevent external interference during transmission, but also the aesthetics of the overall structure can be improved, and the number of the second annular protrusions 722 can also be selected to be consistent with the number of the fifth planetary gear 452, thereby improving the stability of this local structure; similarly, a fourth connecting sleeve can also be selected to be connected to the fourth side plate, and the fourth connecting sleeve includes a fourth chassis, on which two or more fourth annular protrusions are arranged at intervals, and a space for accommodating the sixth planetary gear and the fourth gear ring 802 is formed between the two or more fourth annular protrusions, thereby improving the stability of this local area, wherein the fourth connecting sleeve can select a component with the same structure as the second connecting sleeve 720.

[0055] It should be understood that the embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make any various changes and modifications to the present invention, and these equivalent forms fall within the limits of the appended claims of the application.

Claims

1. A planetary anti-slip differential transmission mechanism, characterized in that: The invention comprises a first base plate (1) and a second base plate (2) which are symmetrically arranged, two or more connecting bodies (310) being arranged between the first base plate (1) and the second base plate (2), a transmission body (320) being arranged between the connecting bodies (310), and a central transmission shaft (330) being sleeved on the transmission body (320); a left planetary gear set (5) being arranged on the left side of the transmission body (320), and a right planetary gear set (4) being arranged on the right side of the transmission body (320), and the left planetary gear set (5) and the right planetary gear set (4) being arranged symmetrically; The right planetary gear set (4) comprises a first planetary unit (410) and a second planetary unit (420), wherein the first planetary unit (410) comprises a first ring gear (411), a first planetary gear (412), and a first sun gear (413), wherein the first ring gear (411) meshes with the first planetary gear (412), and the first planetary gear (412) meshes with the first sun gear (413); the second planetary unit (420) comprises a second sun gear (423) and a second planetary gear (422), wherein the second sun gear (423) is sleeved on the outside of the central transmission shaft (330), and further comprises a second planetary gear (422) shaft, wherein the second planetary gear (422) shaft is connected to the first sun gear (413), the second planetary gear (422) is sleeved on the outside of the second planetary gear (422) shaft, and the second planetary gear (422) meshes with the second sun gear (423); The left planetary gear set (5) comprises a third planetary unit and a fourth planetary unit, wherein the third planetary unit comprises a third ring gear, a third planetary gear, and a third sun gear, wherein the third ring gear meshes with the third planetary gear, and the third planetary gear meshes with the third sun gear; the fourth planetary unit comprises a fourth sun gear and a fourth planetary gear, wherein the fourth sun gear is sleeved on the outside of the central transmission shaft (330), and further comprises a fourth planetary gear shaft, wherein the fourth planetary gear shaft is connected to the third sun gear, the fourth planetary gear is sleeved on the outside of the fourth planetary gear shaft, and the fourth planetary gear meshes with the fourth sun gear; It also includes two or more transmission gear shaft groups, the transmission gear shaft group includes a first transmission gear shaft (601) and a second transmission gear shaft (602) arranged in parallel and meshing with each other, the two ends of the first transmission gear shaft (601) are respectively rotatably connected to the first base plate and the second base plate (2), and the two ends of the second transmission gear shaft (602) are also rotatably connected to the first base plate and the second base plate (2); The first transmission gear shaft (601) meshes with the first gear ring (411), and the second transmission gear shaft (602) meshes with the third gear ring; the first sun gear (413) is connected to the right output part, and the third sun gear is connected to the left output part.

2. The planetary anti-slip differential transmission mechanism according to claim 1, characterized in that: The right planetary gear set (4) further comprises a first side plate (430) and a second side plate (440), wherein the first side plate (430) and the second side plate (440) are symmetrically arranged on both sides of the first gear ring (411); and the first side plate (430) and the second side plate (440) are connected by bolts; and further comprises a first planetary gear shaft (4121), wherein the first planetary gear shaft (4121) is rotatably connected to the first side plate (430) and the second side plate (440), respectively, and the first planetary gear (412) is sleeved on the outside of the first planetary gear shaft (4121).

3. The planetary anti-slip differential transmission mechanism according to claim 1 or 2, characterized in that: The first sun gear (413) is further provided with a first connecting sleeve (710), the first connecting sleeve (710) comprising a right output flange (711), a right output portion being provided on the right output flange (711), two or more first annular protrusions (712) being provided at intervals on the right output flange (711), and a space for accommodating the second planetary gear (422) and the second sun gear (423) being formed between the two or more first annular protrusions (712).

4. The planetary anti-slip differential transmission mechanism according to claim 2, characterized in that: The first planetary gear shaft (4121) is also sleeved with a fifth planetary gear (452), and also includes a second gear ring (801), the inner side of the second gear ring (801) meshing with the second planetary gear (422), and the outer side of the second gear ring (801) meshing with the fifth planetary gear (452).

5. The planetary anti-slip differential transmission mechanism according to claim 4, characterized in that: The second side plate (440) is also connected to a second connecting sleeve (720), the second connecting sleeve (720) comprising a second chassis (721), two or more second annular protrusions (722) being arranged at intervals on the second chassis (721), and a space for accommodating the fifth planetary gear (452) and the second ring gear (801) is formed between the two or more second annular protrusions (722).

6. The planetary anti-slip differential transmission mechanism according to claim 1, 2 or 5, characterized in that: The left planetary gear set (5) further comprises a third side plate and a fourth side plate, the third side plate and the fourth side plate are symmetrically arranged on both sides of the third gear ring; the third side plate and the fourth side plate are connected by bolts; and further comprises a third planetary gear shaft, the third planetary gear shaft is rotatably connected to the third side plate and the fourth side plate respectively, and the third planetary gear is sleeved on the outer side of the third planetary gear shaft.

7. The planetary anti-slip differential transmission mechanism according to claim 1, 2 or 5, characterized in that: The third sun gear is also provided with a third connecting sleeve, which includes a left output flange, on which a left output part is provided, and on which two or more third annular protrusions are arranged at intervals, and between which two or more third annular protrusions, a space is formed to accommodate the fourth planetary gear and the fourth sun gear.

8. The planetary anti-slip differential transmission mechanism according to claim 6, characterized in that: The third planetary gear shaft is also sleeved with a sixth planetary gear and also includes a fourth gear ring (802), the inner side of the fourth gear ring (802) is meshed with the fourth planetary gear, and the outer side of the fourth gear ring (802) is meshed with the fifth planetary gear (452).

9. The planetary anti-slip differential transmission mechanism according to claim 8, characterized in that: The fourth side plate is also connected to a fourth connecting sleeve, which includes a fourth chassis, on which two or more fourth annular protrusions are arranged at intervals, and between the two or more fourth annular protrusions, a space is formed to accommodate the sixth planetary gear and the fourth ring gear (802).

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