A drive shaft bracket assembly, a drive shaft assembly and a vehicle

Abstract

The present invention relates to the field of drive shafts, and more particularly, to a drive shaft support assembly, a drive shaft assembly and a vehicle. The drive shaft support assembly includes a support unit and a shock absorption unit. The support unit includes a support seat, a blocking plate and a reinforcement and drainage plate. The support seat is arc-shaped, and the inner circumferential surface of the support seat is an arc-shaped avoidance surface. The blocking plate protrudes from the arc-shaped avoidance surface; the reinforcement and drainage plate is recessed relative to the arc-shaped avoidance surface. There are a plurality of through holes on the arc-shaped avoidance surface. The shock absorption unit includes an elastic bushing and a rigid hoop. The rigid hoop is sleeved on the outside of the elastic bushing. The rigid hoop is detachably connected to the support seat. There is a buffer space between the rigid hoop and the arc-shaped avoidance surface. The drive shaft assembly includes the drive shaft support assembly; the vehicle includes the drive shaft assembly. The present invention can solve the problem of excessive sediment accumulation on the drive shaft support assembly.

Description

Technical Field

[0001] The present invention relates to the field of transmission shafts, and in particular to a transmission shaft bracket component, a transmission shaft assembly and a vehicle. Background Art

[0002] Three-section drive shafts are often used in some large vehicles or vehicles with a long wheelbase, such as large buses and some heavy trucks. In these vehicles, due to the long body, the distance from the transmission to the drive axle is far, and a longer drive shaft is required to transmit power. The use of a three-section drive shaft can better adapt to the structural layout of the vehicle and can effectively solve the problem of long-distance power transmission. In order to prevent the drive shaft from excessive bending and deformation during operation, a support device needs to be set in the middle section of the drive shaft. Because the three-section drive shaft is relatively long, if there is no support bracket, it is easy to vibrate and bend when transmitting power, affecting the stability of power transmission and the service life of the drive shaft.

[0003] Since the transmission shaft is located at the bottom of the vehicle body, the transmission shaft bracket installed on the transmission shaft is also located at the bottom of the vehicle body. When the vehicle is running, the mud and sand rolled up often accumulate on the bracket. It is not easy to clean the bottom of the vehicle. The accumulation of mud and sand will affect the performance of the bracket and easily cause wear, which will affect the service life of the bearing connected to the bracket. Therefore, the invention of a transmission shaft bracket that is not easy to accumulate mud and sand is urgently needed. Summary of the invention

[0004] In order to solve the problem of sediment accumulation on a transmission shaft support assembly, the present invention provides a transmission shaft support assembly, a transmission shaft assembly and a vehicle.

[0005] In a first aspect, the present invention provides a transmission shaft support assembly, the transmission shaft support assembly comprising:

[0006] A support unit, the support unit comprising a support seat, a blocking plate and a reinforced guide plate; the support seat is integrally formed with the blocking plate and the reinforced guide plate respectively; the support seat is arc-shaped; the blocking plate and the reinforced guide plate are distributed at both ends of the axis of the support seat; the inner circumferential surface of the support seat is an arc-shaped avoidance surface; the blocking plate protrudes from the arc-shaped avoidance surface; the reinforced guide plate is concave relative to the arc-shaped avoidance surface; the arc-shaped avoidance surface has a plurality of through holes; the through holes penetrate to the side of the support seat away from the arc-shaped avoidance surface;

[0007] The shock absorbing unit includes a coaxial elastic bushing and a rigid clamp; the rigid clamp is sleeved on the outside of the elastic bushing; the rigid clamp is detachably connected to the support seat; a buffer space is provided between the rigid clamp and the arc-shaped avoidance surface; the concave side of the arc-shaped avoidance surface faces the rigid clamp; the axis of the support seat is parallel to the axis of the rigid clamp; the blocking plate and the reinforced guide plate are arranged relatively along the axis of the support seat.

[0008] In some embodiments, the rigid clamp comprises a fixing ring, an arc-shaped bottom plate and two arc-shaped side plates; the elastic bushing is located in the fixing ring and the two are interference fit; the arc-shaped bottom plate is located on the side of the fixing ring close to the arc-shaped avoidance surface; there is a distance between the two arc-shaped side plates; the arc-shaped bottom plate and the arc-shaped side plates are respectively attached to the outer circumferential surface of the fixing ring; the two ends of the arc-shaped bottom plate are respectively bent to form a first extension plate; the end of the arc-shaped side plate close to the arc-shaped bottom plate is bent to form a second extension plate; the first extension plate and the second extension plate are attached one-to-one;

[0009] One end of the arc-shaped contour of the support seat is a first mounting portion, and the other end is a second mounting portion; one of the first extension plates and the corresponding second extension plate are detachably connected to the first mounting portion; the other first extension plate and the corresponding second extension plate are detachably connected to the second mounting portion.

[0010] In some embodiments, the shock absorbing unit further includes two groups of elastic fixing modules; one group of the elastic fixing modules corresponds to the first mounting portion; the other group of the elastic fixing modules corresponds to the second mounting portion; the elastic fixing modules include a first elastic pad, a second elastic pad and a fixing bolt; the first extension plate and the second extension plate are clamped between the first elastic pad and the second elastic pad; the first elastic pad is affixed to the first mounting portion or the second mounting portion on one side away from the first extension plate; the second elastic pad, the second extension plate, the first extension plate and the first elastic pad are detachably connected to the first mounting portion or the second mounting portion through the fixing bolt;

[0011] The first extension plate has a first through hole; the second extension plate has a second through hole; the first elastic pad has a first convex ring integrally formed on it; the second elastic pad has a second convex ring integrally formed on it; the first convex ring is passed through the first through hole; the second convex ring is passed through the second through hole; the fixing bolt passes through the second elastic pad, the second convex ring, the first convex ring and the first elastic pad in sequence.

[0012] In some embodiments, the side of the first elastic pad facing the first extension plate is a wavy plane; the side of the second elastic pad facing the second extension plate is a wavy plane; the first elastic pad and the second elastic pad are respectively provided with a plurality of deformation holes.

[0013] In some embodiments, the elastic modulus of the first elastic pad is greater than that of the elastic bushing; the elastic modulus of the second elastic pad is greater than that of the first elastic pad.

[0014] In some embodiments, the support unit further includes a first arc seat and a second arc seat; the support seat is located between the first arc seat and the second arc seat; one end of the first arc seat is integrally formed with the first mounting portion; one end of the second arc seat is integrally formed with the second mounting portion; the axis of the first arc seat is parallel to the axis of the support seat; the axis of the second arc seat is parallel to the axis of the support seat; the concave direction of the first arc seat is opposite to the concave direction of the support seat; the concave direction of the second arc seat is opposite to the concave direction of the support seat; the end of the first arc seat away from the support seat is a first locking portion; the end of the second arc seat away from the support seat is a second locking portion; the first locking portion and the second locking portion are respectively used for detachably connecting with the vehicle frame.

[0015] In some embodiments, the length of the first locking portion from the first mounting portion is greater than the length of the second locking portion from the second mounting portion; a reinforcing rib plate is integrally formed on the concave side of the first arc seat; the length direction of the reinforcing rib plate is parallel to the axis of the first arc seat; the reinforcing rib plate is located at one end of the first arc seat close to the first mounting portion.

[0016] In some embodiments, when the inside of the elastic bushing is unloaded, the extended plane of the joint surface between the first extension plate and the second extension plate is located between the axis of the rigid hoop and the support seat.

[0017] In a second aspect, the present invention provides a drive shaft assembly, the drive shaft assembly includes any one of the drive shaft support assemblies of the first aspect, and the drive shaft assembly further includes:

[0018] A first shaft tube, a second shaft tube and a third shaft tube, one end of the second shaft tube is connected to the first shaft tube through a universal joint; the other end of the second shaft tube is connected to the third shaft tube through a universal joint; a bearing is installed on the second shaft tube; the bearing is located inside the elastic bushing of the drive shaft support assembly; the bearing is in interference fit with the elastic bushing.

[0019] In a third aspect, the present invention provides a vehicle, which includes the drive shaft assembly described in the second aspect. The vehicle further includes:

[0020] a vehicle frame;

[0021] Wherein, the support unit of the drive shaft assembly is detachably connected to the vehicle frame; the shock absorption unit of the drive shaft assembly is located above the support unit; the baffle plate in the drive shaft assembly is located on the side of the support seat close to the front of the vehicle; the reinforcement and drainage plate in the drive shaft assembly is located on the side of the support seat close to the rear of the vehicle.

[0022] To solve the problem of sediment accumulation on the drive shaft support assembly, the present invention has the following advantages:

[0023] A baffle plate and a reinforcement and drainage plate are respectively arranged on both sides of the support unit. The baffle plate is located at one end close to the front of the vehicle and can block most of the invading sediment; the reinforcement and drainage plate is located on the side close to the rear of the vehicle, and the rainwater on the road can wash the support assembly, causing the sediment to flow out from the reinforcement and drainage plate along the direction of the rainwater wash; in addition, the support unit is set as a mesh structure, so that the sediment can leak out from the through holes, and during the shock absorption process of the shock absorption unit, pressure can be applied to the sediment falling on the support unit to make it fall off; thus, the three technical points cooperate with each other and act together to reduce the accumulation of sediment, improve the cleanliness of the sealing lip of the bearing inside the shock absorption unit, and further improve the service life of the bearing inside the shock absorption unit. Description of the Drawings

[0024] Figure 1 Shows a schematic diagram of a drive shaft assembly of an embodiment;

[0025] Figure 2 Shows a schematic diagram of a drive shaft support assembly of an embodiment;

[0026] Figure 3 Shows Figure 2 A cross-sectional schematic diagram of the drive shaft support assembly of the shown embodiment;

[0027] Figure 4 Shows Figure 2 A schematic diagram of the support unit of the shown embodiment;

[0028] Figure 5 Shows Figure 2 A schematic diagram of the shock absorption unit of the shown embodiment;

[0029] Figure 6 Shows Figure 5 A cross-sectional schematic diagram of the A-A plane of the shown embodiment.

[0030] Reference numerals: 10 support unit; 11 support base; 111 arc-shaped avoidance surface; 112 through hole; 113 first mounting portion; 114 second mounting portion; 12 blocking plate; 13 reinforcing drainage plate; 14 first arc-shaped seat; 141 first locking portion; 15 second arc-shaped seat; 151 second locking portion; 16 reinforcing rib plate; 20 shock absorption unit; 21 elastic bushing; 22 rigid hoop; 221 fixing ring; 222 arc-shaped bottom plate; 223 arc-shaped side plate; 224 first extension plate; 225 second extension plate; 23 elastic fixing module; 231 first elastic pad; 232 second elastic pad; 233 first convex ring; 234 second convex ring; 235 fixing bolt; 236 deformation hole; 30 first shaft tube; 40 second shaft tube; 50 third shaft tube. Detailed implementation manners

[0031] The present disclosure will now be described with reference to several exemplary embodiments. It should be understood that the description of these embodiments is only for enabling those of ordinary skill in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0032] As used herein, the term "comprising" and its variants are to be construed as open-ended terms meaning "including but not limited to". The term "based on" is to be construed as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be construed as "at least one embodiment". The term "another embodiment" is to be construed as "at least one other embodiment". The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific circumstances. In addition, the terms "mounted", "arranged", "provided with", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral structure; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, or there may be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "a plurality of" is two or more.

[0033] On some large vehicles, the three-section drive shaft that is often adopted has a relatively long length, and a support device needs to be provided to prevent bending deformation. The support device is generally installed below the bearing. Since the drive shaft is located at the bottom of the vehicle body, the support device is also located at the bottom. Therefore, the dust, sand and gravel splashed up when the vehicle is running are likely to fall on the support device and accumulate, which will affect the performance of the support device and cause wear, affecting the service life of the bearing connected thereto. In this embodiment, a drive shaft bracket assembly is provided. As Figure 2 shown, the drive shaft bracket assembly includes a support unit 10 and a shock absorption unit 20.

[0034] As Figure 4As shown, the support unit 10 may include a support base 11, a blocking plate 12, and a reinforcing drainage plate 13. The support base 11 is integrally formed with the blocking plate 12 and the reinforcing drainage plate 13 respectively. The support base 11 may be arc-shaped, and the blocking plate 12 and the reinforcing drainage plate 13 are distributed at both ends of the axis of the support base 11. The inner circumferential surface of the support base 11 is an arc-shaped avoidance surface 111. The blocking plate 12 protrudes from the arc-shaped avoidance surface 111, and the reinforcing drainage plate 13 is recessed relative to the arc-shaped avoidance surface 111 and extends outward for a certain distance. In the actual situation of being installed on a vehicle, the arc-shaped avoidance surface 111 is arranged upward, the blocking plate 12 is higher than the arc-shaped avoidance surface 111 of the support base 11, and the reinforcing drainage plate 13 is lower than the arc-shaped avoidance surface 111 of the support base 11. Thus, the blocking plate 12 can block most of the sediment invading from the side of the blocking plate 12 facing away from the reinforcing drainage plate 13. The reinforcing drainage plate 13 can play a role in drainage, so that part of the sand and stones can be washed out of the support base 11 by rainwater during the driving of the vehicle. There may be a plurality of through holes 112 on the arc-shaped avoidance surface 111, and the through holes 112 penetrate to the side of the support base 11 facing away from the arc-shaped avoidance surface 111, so that the sand and stones falling on the arc-shaped avoidance surface 111 can fall out to the external space through the through holes 112. When it rains or is washed with a water gun, part of the water can cross the top of the blocking plate 12 and then splash onto the support base 11. Even part of the water can slide down along the side wall of the blocking plate 12 facing the reinforcing drainage plate 13, so that part of the sand and stones can flow out of the support base along with the water through the through holes 112 and the upper surface of the reinforcing drainage plate 13. Furthermore, part of the invading sand and stones is blocked by the blocking plate 12, part falls out along the through holes 112, and part flows out along the reinforcing drainage plate 13. The combined action of the three structures can achieve the effect of minimizing the accumulation of sand and stones on the drive shaft support assembly, thereby ensuring the cleanliness of the internal parts of the shock absorption unit 20 to improve the service life and reduce abnormal noise.

[0035] As Figure 2As shown, the shock absorption unit 20 may include a coaxial elastic bushing 21 and a rigid hoop 22. The rigid hoop 22 is sleeved outside the elastic bushing 21 and can play a role in fixing the elastic bushing 21. The rigid hoop 22 is detachably connected to the support seat 11, so that the support seat 11 can support the transmission shaft through the rigid hoop 22. There is a buffer space between the rigid hoop 22 and the arc-shaped avoidance surface 111. The concave side of the arc-shaped avoidance surface 111 faces the rigid hoop 22. The reserved buffer space can provide a space for accommodating the deformation and displacement amounts after the elastic bushing 21 is installed. During the vibration process, the shock absorption unit 20 will exert an extrusion force on the sediment to squeeze the sediment out of the through hole 112. The baffle plate 12 can limit the vibration process of the shock absorption unit 20, preventing the shock absorption unit 20 from moving excessively axially along the transmission shaft and ensuring the stability of the transmission shaft bracket structure. The axis of the support seat 11 is parallel to the axis of the rigid hoop 22. The baffle plate 12 and the reinforcement drainage plate 13 are arranged oppositely along the axis of the support seat 11. The side close to the baffle plate 12 can be the front direction of the vehicle, so that the baffle plate 12 can be used to block the sediment invading from the front direction when the vehicle is moving to the greatest extent.

[0036] In this embodiment, as Figure 3 shown, the rigid hoop 22 may include a fixed ring 221, an arc-shaped bottom plate 222 and two arc-shaped side plates 223. The elastic bushing 21 is located inside the fixed ring 221 and the two are in interference fit to achieve positioning. The arc-shaped bottom plate 222 is located on the side of the fixed ring 221 close to the arc-shaped avoidance surface 111. In actual application to a vehicle, the arc-shaped bottom plate 222 is located below the fixed ring 221, thus playing a role in supporting and lifting the elastic bushing 21. The arc-shaped bottom plate 222 and the arc-shaped side plates 223 are respectively attached to the outer circumferential surface of the fixed ring 221. In actual application to a vehicle, the arc-shaped side plates 223 are located obliquely above the fixed ring 221. There is a distance between the two arc-shaped side plates 223. One end of the arc-shaped side plate 223 close to the arc-shaped bottom plate 222 is bent to form a second extension plate 225; both ends of the arc-shaped bottom plate 222 are bent to form first extension plates 224. The first extension plates 224 and the second extension plates 225 are attached to each other in a one-to-one correspondence.

[0037] One end of the arc-shaped contour of the support base 11 is a first mounting portion 113, and the other end is a second mounting portion 114. One of the first extension plates 224 and the corresponding second extension plate 225 are detachably connected to the first mounting portion 113, and the other first extension plate 224 and the corresponding second extension plate 225 are detachably connected to the second mounting portion 114. By connecting the first extension plate 224 and the second extension plate 225 to the corresponding first mounting portion 113 and second mounting portion 114 respectively, a stable connection between the rigid hoop 22 and the support base 11 can be achieved. Since there is a spacing between the two arc-shaped side plates 223, when the fixing ring 221 shakes, the spacing between the arc-shaped side plates 223 can change slightly, so that the arc-shaped side plates 223 do not form a large restriction on the fixing ring 221, which is beneficial to the fixing ring 221 to play a certain buffering effect when the fixing ring 221 is stressed and shakes.

[0038] In this embodiment, as Figure 3 , Figure 5 and Figure 6 shown, the shock absorption unit 20 further includes two groups of elastic fixing modules 23. One group of elastic fixing modules 23 corresponds to the first mounting portion 113; the other group of elastic fixing modules 23 corresponds to the second mounting portion 114. The support unit 10 and the shock absorption unit 20 are connected together by two groups of elastic fixing modules 23. The elastic fixing module 23 includes a first elastic pad 231, a second elastic pad 232 and a fixing bolt 235. The first extension plate 224 and the second extension plate 225 are clamped between the first elastic pad 231 and the second elastic pad 232. One side of the first elastic pad 231 facing away from the first extension plate 224 is attached to the first mounting portion 113 or the second mounting portion 114. The second elastic pad 232, the second extension plate 225, the first extension plate 224 and the first elastic pad 231 are detachably connected to the first mounting portion 113 or the second mounting portion 114 by a fixing bolt 235. The first elastic pad 231 and the second elastic pad 232 can play a good buffering role, making the first extension plate 224 and the second extension plate 225 not easily worn and the connection more stable.

[0039] The first extension plate 224 has a first through hole 112; the second extension plate 225 has a second through hole 112. A first convex ring 233 is integrally formed on the first elastic pad 231, and a second convex ring 234 is integrally formed on the second elastic pad 232. The first convex ring 233 is inserted into the first through hole 112, and the second convex ring 234 is inserted into the second through hole 112. The fixing bolt 235 sequentially passes through the second elastic pad 232, the second convex ring 234, the first convex ring 233 and the first elastic pad 231. The first convex ring 233 and the second convex ring 234 can reduce the rigid collision between the first extension plate 224 and the second extension plate 225 and the fixing bolt 235, improve the buffering performance and wear resistance, and increase the service life.

[0040] In this embodiment, as Figure 5 and Figure 6 shown, one side of the first elastic pad 231 facing the first extension plate 224 is a wavy plane; one side of the second elastic pad 232 facing the second extension plate 225 is a wavy plane. A plurality of deformation holes 236 are annularly distributed on the first elastic pad 231 and the second elastic pad 232 respectively. Both the wavy plane and the deformation holes 236 can increase the deformation space of the first elastic pad 231 and the second elastic pad 232, enhancing the buffering effect.

[0041] In this embodiment, the elastic modulus of the first elastic pad 231 is greater than that of the elastic bushing 21, and the elastic modulus of the second elastic pad 232 is greater than that of the first elastic pad 231. The smaller the elastic modulus, the easier the elastic material is to deform and the better the shock absorption effect. Therefore, the shock absorption effects of the second elastic pad 232, the first elastic pad 231, and the elastic bushing 21 can be sequentially enhanced. Among them, the elastic bushing 21 mainly provides shock absorption for the bearing and has the strongest shock absorption requirement; when normally installed at the corresponding position of the vehicle, the first elastic pad 231 is located below the second elastic pad 232. The second elastic pad 232 is not easy to deform, which can improve the stability of fixation and avoid the loosening of bolts, improving the reliability of the structure. The first elastic pad 231 is easier to deform to provide buffering below, while the rigid clamp 22 is easier to deform above to strengthen the buffering above. Multiple buffering structures cooperate with each other, so that the vehicle can have the best shock absorption performance and reliability during bumpy driving.

[0042] In this embodiment, as Figure 3 shown, the support unit 10 further includes a first arc-shaped seat 14 and a second arc-shaped seat 15. The support seat 11 is located between the first arc-shaped seat 14 and the second arc-shaped seat 15. One end of the first arc-shaped seat 14 is integrally formed with the first mounting portion 113, and one end of the second arc-shaped seat 15 is integrally formed with the second mounting portion 114. The axis of the first arc-shaped seat 14 is parallel to the axis of the support seat 11, and the axis of the second arc-shaped seat 15 is parallel to the axis of the support seat 11. The concave direction of the first arc-shaped seat 14 is opposite to the concave direction of the support seat 11, and the concave direction of the second arc-shaped seat 15 is opposite to the concave direction of the support seat 11. Thus, the first arc-shaped seat 14, the support seat 11, and the second arc-shaped seat 15 are integrally formed to form an "M"-shaped bracket. One end of the first arc-shaped seat 14 away from the support seat 11 is a first locking portion 141, and one end of the second arc-shaped seat 15 away from the support seat 11 is a second locking portion 151. The first locking portion 141 and the second locking portion 151 are respectively used for detachable connection with the vehicle frame. The "M"-shaped bracket formed by extending both sides of the "V"-shaped support seat 11 can generate more corners for slight deformation, thereby achieving a stronger support effect and shock absorption performance, making the installation of the drive shaft more stable.

[0043] In this embodiment, as Figure 3As shown, the length of the first locking portion 141 from the first mounting portion 113 is greater than the length of the second locking portion 151 from the second mounting portion 114. Therefore, a reinforcing rib plate 16 is integrally formed on the concave side of the first arc-shaped seat 14. The length direction of the reinforcing rib plate 16 is parallel to the axis of the first arc-shaped seat 14, and the reinforcing rib plate 16 is located at one end of the first arc-shaped seat 14 close to the first mounting portion 113. The junction of the longer first arc-shaped seat 14 and the first mounting portion 113 is a corner. The arrangement of the reinforcing rib plate 16 at the corner can improve the overall stiffness, strength and stability of the drive shaft support structure, and reduce the possibility of fatigue failure caused by stress concentration.

[0044] In this embodiment, when the elastic bushing 21 is unloaded inside, the extended plane of the joint surface between the first extension plate 224 and the second extension plate 225 is located between the axis of the rigid hoop 22 and the support seat 11, that is, a certain deformation amount is reserved. Thus, after the drive shaft is installed, the elastic bushing 21 is compressed and descends, and the extended plane of the joint surface between the first extension plate and the second extension plate 225 can tend to be flush with the axis of the rigid hoop 22.

[0045] In this embodiment, a drive shaft assembly is provided, as Figure 1 shown. The drive shaft assembly includes the drive shaft support assembly in any one of the above embodiments, and further includes a first shaft tube 30, a second shaft tube 40 and a third shaft tube 50.

[0046] One end of the second shaft tube 40 is connected to the first shaft tube 30 through a universal joint, and the other end of the second shaft tube 40 is connected to the third shaft tube 50 through a universal joint. A bearing is installed on the second shaft tube 40, and the bearing is located inside the elastic bushing 21 of the drive shaft support assembly, and the bearing is in interference fit with the elastic bushing 21. The drive shaft support can support the second shaft tube 40, that is, the middle section of the drive shaft assembly, through the cooperation with the bearing, thereby enhancing the stability of the power transmission of the drive shaft assembly and further improving the service life of the drive shaft assembly.

[0047] In this embodiment, a vehicle is provided. The vehicle includes the drive shaft assembly in the above embodiment, and the vehicle further includes a vehicle frame.

[0048] The support unit 10 of the drive shaft assembly is detachably connected to the vehicle frame. The shock absorption unit 20 of the drive shaft assembly is located above the support unit 10. The blocking plate 12 in the drive shaft assembly is located on the side of the support seat 11 close to the head of the vehicle. The reinforcement and drainage plate 13 in the drive shaft assembly is located on the side of the support seat 11 close to the tail of the vehicle. When the vehicle is running, sediment will invade from the head direction. The blocking plate 12 located on the side of the support seat 11 close to the head can block most of the sediment. When there is rain or the vehicle is washed, the sediment on the support unit 10 can flow out along the reinforcement and drainage plate 13 with the water flow.

[0049] Those of ordinary skill in the art can understand that the above embodiments are specific cases for implementing the present disclosure, and in practical applications, various changes can be made to them in form and details without departing from the scope of the present disclosure.

Claims

1. A transmission shaft support assembly, characterized in that: The transmission shaft support assembly comprises: A support unit, the support unit comprising a support seat, a blocking plate and a reinforced guide plate; the support seat is integrally formed with the blocking plate and the reinforced guide plate respectively; the support seat is arc-shaped; the inner circumferential surface of the support seat is an arc-shaped avoidance surface; the blocking plate protrudes from the arc-shaped avoidance surface; the reinforced guide plate is concave relative to the arc-shaped avoidance surface; the arc-shaped avoidance surface is arranged upward, the blocking plate is higher than the arc-shaped avoidance surface, and the reinforced guide plate is lower than the arc-shaped avoidance surface; the arc-shaped avoidance surface is provided with a plurality of through holes; the through holes penetrate to the side of the support seat away from the arc-shaped avoidance surface; A shock absorbing unit, the shock absorbing unit comprises a coaxial elastic bushing and a rigid clamp; the rigid clamp is sleeved on the outside of the elastic bushing; the rigid clamp is detachably connected to the support seat; a buffer space is provided between the rigid clamp and the arc-shaped avoidance surface; the concave side of the arc-shaped avoidance surface faces the rigid clamp; the axis of the support seat is parallel to the axis of the rigid clamp; the blocking plate and the reinforced guide plate are arranged relatively along the axis of the support seat; When the transmission shaft support assembly is located on a vehicle, the blocking plate is located on a side of the support base close to the front of the vehicle, and the reinforced guide plate is located on a side of the support base close to the rear of the vehicle.

2. A transmission shaft support assembly according to claim 1, characterized in that: The rigid clamp comprises a fixing ring, an arc-shaped bottom plate and two arc-shaped side plates; the elastic bushing is located in the fixing ring and the two are interference fit; the arc-shaped bottom plate is located on the side of the fixing ring close to the arc-shaped avoidance surface; there is a distance between the two arc-shaped side plates; the arc-shaped bottom plate and the arc-shaped side plates are respectively attached to the outer circumferential surface of the fixing ring; the two ends of the arc-shaped bottom plate are respectively bent to form a first extension plate; the end of the arc-shaped side plate close to the arc-shaped bottom plate is bent to form a second extension plate; the first extension plate and the second extension plate are attached one-to-one; One end of the arc-shaped contour of the support seat is a first mounting portion, and the other end is a second mounting portion; one of the first extension plates and the corresponding second extension plate are detachably connected to the first mounting portion; the other first extension plate and the corresponding second extension plate are detachably connected to the second mounting portion.

3. A transmission shaft support assembly according to claim 2, characterized in that: The shock absorbing unit also includes two groups of elastic fixing modules; one group of the elastic fixing modules corresponds to the first mounting portion; the other group of the elastic fixing modules corresponds to the second mounting portion; the elastic fixing modules include a first elastic pad, a second elastic pad and a fixing bolt; the first extension plate and the second extension plate are clamped between the first elastic pad and the second elastic pad; the first elastic pad is affixed to the first mounting portion or the second mounting portion on one side away from the first extension plate; the second elastic pad, the second extension plate, the first extension plate and the first elastic pad are detachably connected to the first mounting portion or the second mounting portion through the fixing bolt; The first extension plate has a first through hole; the second extension plate has a second through hole; the first elastic pad has a first convex ring integrally formed on it; the second elastic pad has a second convex ring integrally formed on it; the first convex ring is passed through the first through hole; the second convex ring is passed through the second through hole; the fixing bolt passes through the second elastic pad, the second convex ring, the first convex ring and the first elastic pad in sequence.

4. A transmission shaft support assembly according to claim 3, characterized in that: The side of the first elastic pad facing the first extension plate is a wave plane; the side of the second elastic pad facing the second extension plate is a wave plane; the first elastic pad and the second elastic pad are respectively provided with a plurality of deformation holes.

5. A transmission shaft support assembly according to claim 3, characterized in that: The elastic modulus of the first elastic pad is greater than that of the elastic bushing; and the elastic modulus of the second elastic pad is greater than that of the first elastic pad.

6. A transmission shaft support assembly according to claim 5, characterized in that: The support unit also includes a first arc seat and a second arc seat; the support seat is located between the first arc seat and the second arc seat; one end of the first arc seat is integrally formed with the first mounting portion; one end of the second arc seat is integrally formed with the second mounting portion; the axis of the first arc seat is parallel to the axis of the support seat; the axis of the second arc seat is parallel to the axis of the support seat; the concave direction of the first arc seat is opposite to the concave direction of the support seat; the concave direction of the second arc seat is opposite to the concave direction of the support seat; the end of the first arc seat away from the support seat is a first locking portion; the end of the second arc seat away from the support seat is a second locking portion; the first locking portion and the second locking portion are respectively used for detachable connection with the frame.

7. A transmission shaft support assembly according to claim 6, characterized in that: The length of the first locking portion from the first mounting portion is greater than the length of the second locking portion from the second mounting portion; a reinforcing rib is integrally formed on one side of the concave portion of the first arc-shaped seat; the length direction of the reinforcing rib is parallel to the axis of the first arc-shaped seat; the reinforcing rib is located at one end of the first arc-shaped seat close to the first mounting portion.

8. The transmission shaft support assembly according to claim 2, characterized in that: When the elastic bushing is unloaded, the extension plane of the fitting surface between the first extension plate and the second extension plate is located between the axis of the rigid clamp and the support seat.

9. A transmission shaft assembly, characterized in that: The transmission shaft assembly comprises: The transmission shaft support assembly according to any one of claims 1 to 8; A first shaft tube, a second shaft tube and a third shaft tube, one end of the second shaft tube is connected to the first shaft tube via a universal joint; the other end of the second shaft tube is connected to the third shaft tube via a universal joint; a bearing is installed on the second shaft tube; the bearing is located in the elastic bushing of the transmission shaft support assembly; the bearing is interference fit with the elastic bushing.

10. A vehicle, characterized in that: The vehicle comprises: Frame; A drive shaft assembly as described in claim 9, wherein the support unit of the drive shaft assembly is detachably connected to the vehicle frame; the shock absorbing unit of the drive shaft assembly is located above the support unit; the blocking plate in the drive shaft assembly is located on the side of the support seat close to the front of the vehicle; and the reinforced guide plate in the drive shaft assembly is located on the side of the support seat close to the rear of the vehicle.

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