Transmission shaft support assembly, transmission shaft assembly and vehicle

Abstract

The invention relates to the field of transmission shafts, in particular to a transmission shaft support assembly, a transmission shaft assembly and a vehicle. The transmission shaft support assembly comprises a supporting unit and a cushioning unit. The supporting unit comprises a supporting base, a blocking plate and a reinforcing drainage plate. The supporting seat is arc-shaped, and the inner circumferential surface of the supporting seat is an arc-shaped avoiding surface. The blocking plate protrudes out of the arc-shaped receding face. The reinforcing drainage plate is in a concave shape relative to the arc-shaped receding face. And a plurality of through holes are formed in the arc-shaped avoiding surface. The cushioning unit comprises an elastic bushing and a rigid hoop. The rigid hoop is arranged on the outer side of the elastic lining in a sleeving mode. And the rigid hoop is detachably connected with the supporting seat. And a buffer space is formed between the rigid hoop and the arc-shaped avoiding surface. The transmission shaft assembly comprises a transmission shaft support assembly. A vehicle includes a driveshaft assembly. The problem that too much silt is accumulated on the transmission shaft support assembly can be solved.

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: 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; 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.

[0006] 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; 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.

[0007] 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; 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.

[0008] 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; and the first elastic pad and the second elastic pad each have a plurality of deformation holes.

[0009] In some embodiments, the elastic modulus of the first elastic pad is greater than the elastic modulus of the elastic bushing; and the elastic modulus of the second elastic pad is greater than the elastic modulus of the first elastic pad.

[0010] In some embodiments, 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.

[0011] 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 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; and the reinforcing rib is located at one end of the first arc-shaped seat close to the first mounting portion.

[0012] In some embodiments, 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.

[0013] In a second aspect, the present invention provides a transmission shaft assembly, the transmission shaft assembly comprising any transmission shaft support assembly of the first aspect, the transmission shaft assembly further comprising: 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.

[0014] In a third aspect, the present invention provides a vehicle, the vehicle comprising the transmission shaft assembly according to the second aspect, and the vehicle further comprising: Frame; Among them, the support unit of the transmission shaft assembly is detachably connected to the frame; the shock-absorbing unit of the transmission shaft assembly is located above the support unit; the blocking plate in the transmission shaft assembly is located on the side of the support seat close to the front of the vehicle; the reinforced guide plate in the transmission shaft assembly is located on the side of the support seat close to the rear of the vehicle.

[0015] In order to solve the problem of sand accumulation on the transmission shaft support assembly, the present invention has the following advantages: A blocking plate and a reinforced drainage plate are respectively arranged on both sides of the support unit. The blocking plate is located at one end close to the front of the vehicle and can block most of the intruding mud and sand; the reinforced drainage plate is located on the side close to the rear of the vehicle, and the rainwater on the road can flush the bracket assembly and cause the mud and sand to flow out from the reinforced drainage plate in the direction of the rainwater flushing; in addition, the support unit is set as a mesh structure, so that the mud and sand can leak out from the through hole, and the shock absorbing unit can exert pressure on the mud and sand falling on the support unit during the shock absorbing process to squeeze it off; thus, the three technical points cooperate with each other and work together to reduce the accumulation of mud and sand, improve the cleanliness of the sealing lip of the internal bearing of the shock absorbing unit, and thus improve the service life of the internal bearing of the shock absorbing unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a transmission shaft assembly according to an embodiment is shown; Figure 2 A schematic diagram of a transmission shaft support assembly according to an embodiment is shown; Figure 3 Shows Figure 2 A schematic cross-sectional view of a transmission shaft support assembly of the illustrated embodiment; Figure 4 Shows Figure 2 A schematic diagram of a support unit of the illustrated embodiment; Figure 5 Shows Figure 2 A schematic diagram of a shock absorbing unit of the illustrated embodiment; Figure 6 Shows Figure 5 A schematic cross-sectional view of the AA plane of the illustrated embodiment.

[0017] Figure numerals: 10 support unit; 11 support seat; 111 arc-shaped avoidance surface; 112 through hole; 113 first mounting portion; 114 second mounting portion; 12 blocking plate; 13 reinforcement guide plate; 14 first arc-shaped seat; 141 first locking portion; 15 second arc-shaped seat; 151 second locking portion; 16 reinforcement rib; 20 shock-absorbing unit; 21 elastic bushing; 22 rigid clamp; 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 DESCRIPTION

[0018] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0019] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the 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, "plurality" means two or more.

[0020] The three-section transmission shaft often used in some large vehicles is long, so a support device is required to prevent bending and deformation. The support device is generally installed under the bearing. The transmission shaft is located at the bottom of the vehicle body, and the support device is also located at the bottom. Therefore, dust and sand splashed by the vehicle when driving are easy to fall on the support device and accumulate, thereby affecting the performance of the support device and easily causing wear and tear, affecting the service life of the bearing connected thereto. In this embodiment, a transmission shaft support assembly is provided, such as Figure 2 As shown, the transmission shaft support assembly includes a support unit 10 and a shock absorbing unit 20 .

[0021] like Figure 4As shown, the support unit 10 may include a support seat 11, a blocking plate 12 and a reinforced guide plate 13. The support seat 11 is integrally formed with the blocking plate 12 and the reinforced guide plate 13 respectively. The support seat 11 may be arc-shaped, and the blocking plate 12 and the reinforced guide plate 13 are distributed at both ends of the axis of the support seat 11. The inner circumferential surface of the support seat 11 is an arc-shaped avoidance surface 111. The blocking plate 12 protrudes from the arc-shaped avoidance surface 111, and the reinforced guide plate 13 is concave relative to the arc-shaped avoidance surface 111 and extends outward for a distance. When actually installed on a vehicle, the arc-shaped avoidance surface 111 is set upward, the blocking plate 12 is higher than the arc-shaped avoidance surface 111 of the support seat 11, and the reinforced guide plate 13 is lower than the arc-shaped avoidance surface 111 of the support seat 11. Thereby, the blocking plate 12 can block most of the mud and sand that invade the side of the blocking plate 12 away from the reinforced guide plate 13. The reinforced drainage plate 13 can play a role in drainage, so that some sand and gravel can be washed out of the support seat 11 by rainwater during the driving of the vehicle. The arc-shaped avoidance surface 111 can have multiple through holes 112, and the through holes 112 penetrate to the side of the support seat 11 away from the arc-shaped avoidance surface 111, so that the sand and gravel falling on the arc-shaped avoidance surface 111 can fall out to the outside space through the through holes 112, and when it rains or is washed with a water gun, part of the water can pass over the top of the blocking plate 12 and splash onto the support seat 11, and even part of the water can slide down the side wall of the side of the blocking plate 12 toward the reinforced drainage plate 13, so that part of the sand and gravel can flow out of the support seat with the water through the through holes 112 and the upper surface of the reinforced drainage plate 13. Furthermore, part of the invading sand and gravel is blocked by the blocking plate 12, part of it falls out through the through hole 112, and part of it flows out through the reinforced drainage plate 13. The combined effect of the three structures can minimize the accumulation of sand and gravel on the drive shaft bracket assembly, thereby ensuring the cleanliness of the internal parts of the shock absorbing unit 20 to increase its service life and reduce abnormal noise.

[0022] like Figure 2As shown, the shock absorbing unit 20 may include a coaxial elastic bushing 21 and a rigid clamp 22. The rigid clamp 22 is sleeved on the outside of the elastic bushing 21 and can play a role in fixing the elastic bushing 21. The rigid clamp 22 is detachably connected to the support seat 11, so that the support seat 11 can support the transmission shaft through the rigid clamp 22. There is a buffer space between the rigid clamp 22 and the arc-shaped avoidance surface 111, and the concave side of the arc-shaped avoidance surface 111 faces the rigid clamp 22. The reserved buffer space can provide a space for the deformation and displacement of the elastic bushing 21 after installation. The shock absorbing unit 20 will squeeze the mud and sand during the vibration process to squeeze the mud and sand out of the through hole 112. The blocking plate 12 can limit the vibration process of the shock absorbing unit 20, avoid the shock absorbing unit 20 from excessive position movement along the axial direction of the transmission shaft, and ensure the stability of the transmission shaft bracket structure. The axis of the support seat 11 is parallel to the axis of the rigid clamp 22, and the blocking plate 12 and the reinforced guide plate 13 are arranged relatively along the axis of the support seat 11. The side close to the blocking plate 12 can be the direction of the front of the vehicle, so that the blocking plate 12 can be used to the greatest extent to block the mud and sand that invades from the front direction of the vehicle when the vehicle is moving.

[0023] In this embodiment, if Figure 3 As shown, the rigid clamp 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 in the fixed ring 221 and the two are positioned by interference fit. The arc-shaped bottom plate 222 is located on the side of the fixed ring 221 close to the arc-shaped avoidance surface 111. When actually applied to the vehicle, the arc-shaped bottom plate 222 is located below the fixed ring 221, thereby supporting the elastic bushing 21. The arc-shaped bottom plate 222 and the arc-shaped side plate 223 are respectively attached to the outer circumferential surface of the fixed ring 221. When actually applied to the vehicle, the arc-shaped side plate 223 is located obliquely above the fixed ring 221. There is a spacing between the two arc-shaped side plates 223, and 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; the two ends of the arc-shaped bottom plate 222 are respectively bent to form a first extension plate 224. The first extension plate 224 and the second extension plate 225 are fitted in a one-to-one correspondence.

[0024] One end of the arc-shaped profile of the support seat 11 is the first mounting portion 113, and the other end is the second mounting portion 114. One of the first extension plates 224 and the corresponding second extension plate 225 is 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 the second mounting portion 114, respectively, a stable connection between the rigid clamp 22 and the support seat 11 can be achieved. Since there is a spacing between the two arc-shaped side plates 223, the spacing of the arc-shaped side plates 223 can change slightly when the fixing ring 221 shakes, so that the arc-shaped side plates 223 do not form a large restriction on the fixing ring 221, which is beneficial to a certain buffering effect on the fixing ring 221 when the fixing ring 221 shakes under force.

[0025] In this embodiment, if Figure 3 , Figure 5 and Figure 6 As shown, the shock absorbing unit 20 also 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 absorbing unit 20 are connected together by the 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. The 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 the fixing bolt 235. The first elastic pad 231 and the second elastic pad 232 can play a good buffering role, so that the first extension plate 224 and the second extension plate 225 are not easily worn and the connection is more stable.

[0026] The first extension plate 224 has a first through hole 112; the second extension plate 225 has a second through hole 112. The first elastic pad 231 is integrally formed with a first convex ring 233, and the second elastic pad 232 is integrally formed with a second convex ring 234. 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.

[0027] In this embodiment, if Figure 5 and Figure 6 As shown, the side of the first elastic pad 231 facing the first extension plate 224 is a wave plane; the side of the second elastic pad 232 facing the second extension plate 225 is a wave plane. A plurality of deformation holes 236 are respectively distributed in an annular manner on the first elastic pad 231 and the second elastic pad 232. Both the wave plane and the deformation holes 236 can increase the deformation space of the first elastic pad 231 and the second elastic pad 232, thereby enhancing the buffering effect.

[0028] 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 it is for the elastic material to deform and the better the shock absorbing effect. Therefore, the shock absorbing effects of the second elastic pad 232, the first elastic pad 231, and the elastic bushing 21 can be successively strengthened. Among them, the elastic bushing 21 is mainly for bearing shock absorption, and the shock absorption demand is the strongest; 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 the fixation and avoid the loosening of the bolts, and improve the reliability of the structure. The first elastic pad 231 is easier to deform to provide a buffer below, while the rigid hoop 22 is easier to deform above to strengthen the buffer above. Multiple buffer structures cooperate with each other, so that the vehicle can have the best shock absorption performance and reliability during the bumpy process.

[0029] In this embodiment, if Figure 3 As shown, the support unit 10 also includes a first arc seat 14 and a second arc seat 15. The support seat 11 is located between the first arc seat 14 and the second arc seat 15. One end of the first arc seat 14 is integrally formed with the first mounting portion 113, and one end of the second arc seat 15 is integrally formed with the second mounting portion 114. The axis of the first arc seat 14 is parallel to the axis of the support seat 11, and the axis of the second arc seat 15 is parallel to the axis of the support seat 11. The concave direction of the first arc seat 14 is opposite to the concave direction of the support seat 11, and the concave direction of the second arc seat 15 is opposite to the concave direction of the support seat 11. Thus, the first arc seat 14, the support seat 11, and the second arc seat 15 are integrally formed to form an "M"-shaped bracket. The end of the first arc seat 14 away from the support seat 11 is the first locking portion 141, and the end of the second arc seat 15 away from the support seat 11 is the 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 the left and right sides of the "V"-shaped support seat 11 can generate more corners for slight deformation, thereby achieving a stronger support effect and shock-absorbing performance, making the installation of the transmission shaft more stable.

[0030] In this embodiment, if 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 16 is integrally formed on one side of the concave portion of the first arc seat 14. The length direction of the reinforcing rib 16 is parallel to the axis of the first arc seat 14, and the reinforcing rib 16 is located at one end of the first arc seat 14 close to the first mounting portion 113. The junction of the longer first arc seat 14 and the first mounting portion 113 is a corner. The reinforcing rib 16 is provided at the corner, which can improve the rigidity, strength and stability of the overall structure of the transmission shaft support and reduce the possibility of fatigue damage caused by stress concentration.

[0031] In this embodiment, when the elastic bushing 21 is unloaded, the extension plane of the fitting surface between the first extension plate 224 and the second extension plate 225 is located between the axis of the rigid clamp 22 and the support seat 11, that is, a certain amount of deformation is reserved. Therefore, after the transmission shaft is installed, the elastic bushing 21 is pressed down, and the extension plane of the fitting surface between the first extension plate 224 and the second extension plate 225 can be flush with the axis of the rigid clamp 22.

[0032] In this embodiment, a transmission shaft assembly is provided, such as Figure 1 As shown, the transmission shaft assembly includes the transmission shaft support assembly of 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 .

[0033] 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 in the elastic bushing 21 of the transmission shaft support assembly, and the bearing is interference fit with the elastic bushing 21. The transmission shaft support can support the second shaft tube 40, that is, the middle section of the transmission shaft assembly, by cooperating with the bearing, thereby enhancing the stability of the power transmission of the transmission shaft assembly, and further increasing the service life of the transmission shaft assembly.

[0034] In this embodiment, a vehicle is provided. The vehicle includes the transmission shaft assembly in the above embodiment, and the vehicle also includes a frame.

[0035] The support unit 10 of the transmission shaft assembly is detachably connected to the vehicle frame. The shock absorbing unit 20 of the transmission shaft assembly is located above the support unit 10. The blocking plate 12 in the transmission shaft assembly is located on the side of the support seat 11 close to the front of the vehicle. The reinforced drainage plate 13 in the transmission shaft assembly is located on the side of the support seat 11 close to the rear of the vehicle. When the vehicle is driving, mud and sand will invade from the front direction, and the blocking plate 12 located on the side of the support seat 11 close to the front can block most of the mud and sand. When it rains or the vehicle is washed, the mud and sand on the support unit 10 can flow out along the reinforced drainage plate 13 with the water flow.

[0036] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail 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 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; 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.

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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