Automobile transmission joint and automobile

Abstract

The application provides a vehicle transmission joint and a vehicle, which comprise: a first axial buffer, an axial first end of the first axial buffer being used for being connected with an output end of a power device, an axial second end of the first axial buffer being used for being connected with an input end of a load or an input end of a differential mechanism, the first axial buffer being telescopic along an axial direction, and the first axial buffer having an inner cavity; and a second axial buffer, which is arranged in the inner cavity, an axial first end of the second axial buffer being connected with the first axial buffer, and an axial second end of the second axial buffer being arranged apart from the first axial buffer to form a buffer gap, and the second axial buffer being telescopic along the axial direction. The vehicle transmission joint has a multi-stage vibration damping function, can play a damping effect, and can not only improve the running stability of the vehicle, but also stably drive the vehicle transmission joint under the condition that the load or the differential mechanism runs in a plurality of complex working conditions such as swinging, sliding, shaking, telescoping and bending.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile transmission, and in particular to a vehicle transmission joint and an automobile. BACKGROUND

[0002] At present, the input end of the load and the output end of the power device or the input end of the differential and the output end of the power device are connected in a rigid manner. In actual operation, the swinging, sliding, and shaking of the load or the differential during operation directly act on the power device of the automobile, affecting the driving stability of the automobile. SUMMARY

[0003] The present application provides a vehicle transmission joint and an automobile to solve the problems in the related art. The technical solutions are as follows.

[0004] In a first aspect, the present application provides a vehicle transmission joint, comprising:

[0005] A first axial buffer, an axial first end of the first axial buffer is configured to be connected with an output end of a power device, an axial second end of the first axial buffer is configured to be connected with an input end of a load or an input end of a differential, the first axial buffer is axially telescopic, and the first axial buffer has an inner cavity;

[0006] A second axial buffer, the second axial buffer is arranged in the inner cavity, an axial first end of the second axial buffer is connected with the first axial buffer, and an axial second end of the second axial buffer is arranged apart from the first axial buffer to form a buffer gap, and the second axial buffer is axially telescopic.

[0007] In an embodiment, the second axial buffer comprises:

[0008] A first connecting piece, the first connecting piece is connected with the first axial buffer;

[0009] A second connecting piece, the second connecting piece is arranged apart from the first connecting piece along the axial direction of the second axial buffer, and the second connecting piece is arranged apart from the first axial buffer to form the buffer gap;

[0010] An elastic piece, the elastic piece is arranged between the first connecting piece and the second connecting piece to form a telescopic region, and the telescopic region is axially telescopic.

[0011] In an embodiment, the second axial buffer further comprises:

[0012] A first fastener, a head of the first fastener abutting against a side of the first connecting member away from the elastic member, a shank of the first fastener sequentially penetrating the first connecting member, the elastic member and the second connecting member;

[0013] A fastening nut, the fastening nut being screwed on the shank of the first fastener, the fastening nut abutting against a side of the second connecting member away from the elastic member.

[0014] In an embodiment, the vehicle transmission joint further comprises:

[0015] A connector, the connector being arranged on an axial first end of the first axial buffer, the connector being provided with an inner ring gear;

[0016] An input shaft, the input shaft being provided with an input end and an outer ring gear, the input end being used for connecting with an output end of a power device, the outer ring gear being inserted into the inner ring gear and being engaged with the inner ring gear, so that the inner ring gear rotates with the outer ring gear to drive the first axial buffer to rotate.

[0017] In an embodiment, a side of the connector away from the first axial buffer is provided with a through hole, a hole diameter of the through hole being smaller than a hole diameter of a central hole of the inner ring gear to form a first limiting end face between the through hole and the inner ring gear;

[0018] The input shaft is provided with a first shaft section and a second shaft section arranged sequentially along an axial direction of the input shaft, the first shaft section being provided with the input end, the first shaft section penetrating the through hole, the second shaft section being provided with the outer ring gear, an outer diameter of the second shaft section being larger than an outer diameter of the first shaft section to form a second limiting end face between the second shaft section and the first shaft section, the second limiting end face abutting against the first limiting end face.

[0019] In an embodiment, the vehicle transmission joint further comprises:

[0020] A first buffer member, the first buffer member being sleeved on the first shaft section, the first buffer member being clamped between the first limiting end face and the second limiting end face.

[0021] In an embodiment, a side of the connector close to the first axial buffer is provided with a second buffer member, the second buffer member abutting against an end face of the input shaft close to the outer ring gear.

[0022] In an embodiment, a side of the connector close to the first axial buffer is provided with a positioning groove, the positioning groove being arranged around the inner ring gear, the positioning groove and the second buffer member being adapted.

[0023] In an embodiment, the axial first end surface of the first axial buffer has a first connecting hole and a first exhaust hole, and the first exhaust hole communicates with the inner cavity;

[0024] The connector has a second connecting hole and a second exhaust hole on the side close to the first axial buffer, the second connecting hole communicates with the first connecting hole, and the second exhaust hole communicates with the first exhaust hole;

[0025] The vehicle transmission joint further comprises:

[0026] The head of the second fastener abuts against the side of the connector away from the first axial buffer, the rod of the second fastener is sequentially arranged through the second connecting hole and the first connecting hole, and the rod of the second fastener is screwed with the first connecting hole.

[0027] In a second aspect, the embodiments of the present application provide an automobile comprising the vehicle transmission joint.

[0028] The advantages or beneficial effects of the above technical solutions at least include:

[0029] The vehicle transmission joint comprises a first axial buffer and a second axial buffer, wherein the axial first end of the first axial buffer is connected with the output end of the power device, the axial second end of the first axial buffer is connected with the input end of the load or the input end of the differential, so as to indirectly connect the power device and the load or the differential together, the first axial buffer can be stretched and contracted along the axial direction, and the first axial buffer can be used for one-stage vibration damping, so as to achieve the effect of shock absorption; meanwhile, the second axial buffer is arranged in the inner cavity, the axial first end of the second axial buffer is connected with the first axial buffer, and the axial second end of the second axial buffer is arranged away from the first axial buffer to form a buffer gap, in the case of compression of the first axial buffer, the buffer gap is compressed along with the first axial buffer, so as to achieve two-stage vibration damping, and the effect of shock absorption is further improved; in addition, the second axial buffer can be stretched and contracted along the axial direction, in the case of compression of the first axial buffer to eliminate the buffer gap and push the second axial buffer, the second axial buffer is compressed along with the first axial buffer, so as to achieve three-stage vibration damping, and the effect of shock absorption is further improved, the vehicle transmission joint has multi-stage vibration damping function, and the effect of shock absorption is excellent; in the case of various complex working conditions such as swinging, sliding, shaking, stretching, bending and the like generated by the load or the differential, the automobile running stability is improved, and the vehicle transmission joint can still stably transmit power.

[0030] The above summary is intended to illustrate, but not limit, the present application. Further aspects, embodiments and features of the present application will be readily apparent from the detailed description and drawings below. BRIEF DESCRIPTION OF DRAWINGS

[0031] In the drawings, like numerals refer to like elements throughout the various drawings. The drawings are not necessarily to scale, the emphasis instead being placed on illustrating principles of the application. It should be understood that the drawings are merely illustrative of certain embodiments of the application and that they, therefore, do not limit the scope of the application.

[0032] Fig. 1 A perspective view of a transmission joint for a vehicle according to a preferred embodiment of the present application;

[0033] Fig. 2 An exploded view of a transmission joint for a vehicle according to a preferred embodiment of the present application;

[0034] Fig. 3 A perspective view of a connector according to a preferred embodiment of the present application.

[0035] REFERENCE NUMERALS

[0036] 1. first axial buffer, the axial first end of the first axial buffer is configured to be connected to an output end of a power device, the axial second end of the first axial buffer is configured to be connected to an input end of a load or a differential, the first axial buffer is axially telescopic, the first axial buffer has an inner cavity 11; 2. second axial buffer, the axial first end of the second axial buffer is configured to be connected to the output end of the power device, the axial second end of the second axial buffer is configured to be connected to the input end of the load or the differential, the second axial buffer is axially telescopic, the second axial buffer has an inner cavity 21; 3. connector, the connector has an inner ring gear 31, the inner ring gear 31 has a plurality of through holes 32, the inner ring gear 31 has a plurality of positioning grooves 33, the connector has a first connecting hole 12, the connector has a second connecting hole 34, the connector has a first exhaust hole 13, the connector has a second exhaust hole 35, the connector has a first connecting member 21, the first connecting member 21 has a first elastic member 23, the first connecting member 21 has a second elastic member 22, the connector has a second connecting member 22, the second connecting member 22 has a second elastic member 23, the second connecting member 22 has a first elastic member 21; 4. input shaft, the input shaft has a first shaft segment 41, the first shaft segment 41 has an outer ring gear 421, the first shaft segment 41 has a second limiting end surface 43, the input shaft has a second shaft segment 42, the second shaft segment 42 has a first buffer member 5, the second shaft segment 42 has a second buffer member 6, the second shaft segment 42 has a second fastener 7; DETAILED DESCRIPTION

[0037] In the following, only certain example embodiments are simply described. As those skilled in the art will recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.

[0038] Reference Figs. 1-3 is a transmission joint for a vehicle according to a preferred embodiment of the present application, comprising:

[0039] 1. first axial buffer, the axial first end of the first axial buffer is configured to be connected to an output end of a power device, the axial second end of the first axial buffer is configured to be connected to an input end of a load or a differential, the first axial buffer is axially telescopic, the first axial buffer has an inner cavity 11;

[0040] A second axial buffer 2 is arranged in the inner cavity 11, an axial first end of the second axial buffer 2 is connected with the first axial buffer 1, and an axial second end of the second axial buffer 2 is arranged apart from the first axial buffer 1 to form a buffer gap, and the second axial buffer 2 is axially telescopic.

[0041] The vehicle transmission joint of the present application comprises the first axial buffer 1 and the second axial buffer 2, wherein the axial first end of the first axial buffer 1 can be connected with the output end of the power device, the axial second end of the first axial buffer 1 can be connected with the input end of the load or the input end of the differential, so as to indirectly connect the power device and the load or the differential together, and since the first axial buffer 1 is axially telescopic, the first axial buffer 1 can be used for one-stage shock absorption, thereby achieving the effect of shock absorption; meanwhile, since the second axial buffer 2 is arranged in the inner cavity 11, the axial first end of the second axial buffer 2 is connected with the first axial buffer 1, and the axial second end of the second axial buffer 2 is arranged apart from the first axial buffer 1 to form a buffer gap, and in the case of compression of the first axial buffer 1, the buffer gap also follows the compression of the first axial buffer 1, thereby achieving the effect of two-stage shock absorption, and the effect of shock absorption can be further improved; in addition, since the second axial buffer 2 is axially telescopic, in the case of compression of the first axial buffer 1 to eliminate the buffer gap and push the second axial buffer 2, the second axial buffer 2 also follows the compression of the first axial buffer 1, thereby achieving the effect of three-stage shock absorption, and the effect of shock absorption can be further improved, so that the vehicle transmission joint has the function of multi-stage shock absorption, and the effect of shock absorption is excellent; in the case of various complex working conditions such as swinging, sliding, shaking, stretching, bending and the like of the load or the differential, not only the running stability of the automobile can be improved, but also the vehicle transmission joint can still stably transmit power.

[0042] In addition, the vehicle transmission joint of the present embodiment, since the first axial buffer 1 is axially telescopic, the second axial buffer 2 is axially telescopic and has a buffer gap, in the case of installation of the load or the differential and the like on the output end of the power device and insufficient axial installation position, the first axial buffer 1 can be pushed to move towards the output end of the power device to compress the first axial buffer 1, so that the output end of the power device has a larger axial installation space on the side close to the load or the differential, the axial installation space can easily install the load or the differential and the like on the output end of the power device, thereby reducing the installation difficulty of the output end of the power device and the load or the differential and the like, and the installation efficiency can be improved.

[0043] The first axial buffer 1 can be a metal bellows, which has high strength and rigidity and can withstand extreme conditions such as high pressure, high temperature and external impact, so that it can be reliably connected with the load or the differential together. At the same time, the bellows structure of the metal bellows gives good elasticity and deformability, which can make the metal bellows axially extend smoothly, and can also adapt to the thermal expansion and contraction and vibration deformation of the power device during work, reducing the risk of stress concentration and fatigue failure, and prolonging the service life of the first axial buffer 1.

[0044] In other embodiments, the first axial buffer 1 can also be a plastic bellows, which can also make the first axial buffer 1 axially extend smoothly, and can also reliably connect the first axial buffer 1 with the load or the differential together.

[0045] In other embodiments, the first axial buffer 1 can also be a spring or other suitable elastic member, as long as it can make the first axial buffer 1 axially extend and move, and can also be reliably connected with the load or the differential together.

[0046] In an embodiment, the second axial buffer 2 comprises:

[0047] The first connecting piece 21 is connected with the first axial buffer 1;

[0048] The second connecting piece 22 is arranged apart from the first connecting piece 21 along the axial direction of the second axial buffer 2, and the second connecting piece 22 is arranged apart from the first axial buffer 1 to form a buffer gap;

[0049] The elastic member 23 is clamped between the first connecting piece 21 and the second connecting piece 22 to form an extension and contraction area, which can axially extend and contract. In this way, when the first axial buffer 1 is compressed to eliminate the buffer gap and push the second axial buffer 2, the first connecting piece 21 and the second connecting piece 22 extrude the elastic member 23 under the thrust of the first axial buffer 1, and the elastic member 23 axially deforms to make the first connecting piece 21, the second connecting piece 22 and the elastic member 23 all axially move, that is, to compress the second axial buffer 2 and achieve vibration damping. The second axial buffer 2 has a simple and practical structure and high vibration damping stability.

[0050] In an embodiment, the elastic member 23 can be an elastic gasket, which has a simple structure, is convenient to install, and has low cost, which is conducive to reducing the cost of the vehicle transmission joint.

[0051] In other embodiments, the elastic member 23 can be a spring, a spring piece, an elastic sleeve or other elastic members, as long as it can axially extend and contract.

[0052] In an embodiment, the second axial buffer 2 further comprises:

[0053] A first fastener (not shown in the figure) has its head abutting against the side of the first connecting piece 21 away from the elastic member 23, and has its shank passing through the first connecting piece 21, the elastic member 23 and the second connecting piece 22 in sequence;

[0054] A fastening nut (not shown in the figure) is screwed on the shank of the first fastener and abuts against the side of the second connecting piece 22 away from the elastic member 23. That is, the first connecting piece 21, the second connecting piece 22 and the elastic member 23 are connected to form a modular structure by the cooperation of the fastener and the fastening nut. The modular structure has good integrity and high damping stability. Meanwhile, the modular structure is convenient to install and can greatly improve the assembly efficiency of the vehicle transmission joint.

[0055] Of course, in other embodiments, the second axial buffer 2 can be a corrugated pipe, a spring, a spring sheet or other elastic member.

[0056] In an embodiment, the vehicle transmission joint further comprises:

[0057] A connector 3 is arranged on the axial first end of the first axial buffer 1, and the connector 3 is provided with an inner ring gear 31;

[0058] An input shaft 4 is provided with an input end and an outer ring gear 421. The input end is used to connect with the output end of the power device. The outer ring gear 421 is inserted into the inner ring gear 31 and meshes with the inner ring gear 31, so that the inner ring gear 31 rotates with the outer ring gear 421 to drive the first axial buffer 1 to rotate. That is, by connecting the input shaft 4 with the output end of the power device, the torque output by the output end of the power device can be transmitted to the input shaft 4, so that the input shaft 4 rotates with the output end of the power device. By the meshing of the outer ring gear 421 and the inner ring gear 31, the torque output by the input shaft 4 can be transmitted to the first axial buffer 1, so that the first axial buffer 1 rotates with the input shaft 4 to drive the load or the differential to rotate. The cooperation of the outer ring gear 421 and the inner ring gear 31 can improve the synchronization degree of the first axial buffer 1 and the input shaft 4, thereby improving the transmission efficiency.

[0059] In an embodiment, the side of the connector 3 away from the first axial buffer 1 has a through hole 32, and the hole diameter of the through hole 32 is smaller than the hole diameter of the central hole of the inner ring gear 31 to form a first limiting end face therebetween;

[0060] The input shaft 4 is provided with a first shaft section 41 and a second shaft section 42 arranged in sequence along the axial direction of the input shaft 4, the first shaft section 41 is provided with an input end, the first shaft section 41 passes through the through hole 32, and the second shaft section 42 is provided with an outer gear ring 421, the outer diameter of the second shaft section 42 is larger than the outer diameter of the first shaft section 41 to form a second limiting end face 43 therebetween, the second limiting end face 43 abuts against the first limiting end face to axially limit the input shaft 4, limit the input shaft 4 from being separated from the connector 3, and ensure that the input shaft 4 and the connector 3 are reliably connected together, that is, the input shaft 4 and the first axial buffer 1 are reliably connected together, and the transmission reliability and stability are improved.

[0061] In an embodiment, the transmission joint for vehicle further comprises:

[0062] The first buffer 5 is sleeved on the first shaft section 41, and the first buffer 5 is clamped between the first limiting end face and the second limiting end face 43, so that in the case that the input shaft 4 axially moves towards the first axial buffer 1, the input shaft 4 extrudes the first buffer 5, the first buffer 5 is compressed, the first buffer 5 is compressed to play a role of buffering vibration, and the transmission stability is further improved.

[0063] In an embodiment, the side of the connector 3 close to the first axial buffer 1 is provided with a second buffer 6, and the second buffer 6 abuts against an end face of the input shaft 4 close to the outer gear ring 421, and for the same reason, in the case that the input shaft 4 axially moves away from the first axial buffer 1, the input shaft 4 extrudes the second buffer 6, the second buffer 6 is compressed, the second buffer 6 is compressed to play a role of buffering vibration, and the transmission stability is further improved.

[0064] In an embodiment, the side of the connector 3 close to the first axial buffer 1 has a positioning groove 33, the positioning groove 33 is arranged around the inner gear ring 31, and the positioning groove 33 and the second buffer 6 are matched to position the second buffer 6, so that the second buffer 6 is reliably arranged on the connector 3.

[0065] Specifically, the first buffer 5 can be a rubber pad, a rubber layer, or a sealing ring, and the second buffer 6 can be a rubber layer, a rubber pad, or a sealing ring.

[0066] In an embodiment, the axial first end face of the first axial buffer 1 has a first connecting hole 12 and a first exhaust hole 13, and the first exhaust hole 13 communicates with the inner cavity 11.

[0067] The side of the connector 3 close to the first axial buffer 1 has a second connecting hole 34 and a second exhaust hole 35, the second connecting hole 34 communicates with the first connecting hole 12, and the second exhaust hole 35 communicates with the first exhaust hole 13.

[0068] The vehicle transmission joint further comprises:

[0069] The second fastener 7 is arranged in the second connecting hole 34 and the first connecting hole 12, and the head of the second fastener 7 is arranged on the side of the connector 3 away from the first axial buffer 1, and the rod of the second fastener 7 is screwed with the first connecting hole 12, so that the connector 3 is reliably arranged on the first axial buffer 1 by the second fastener 7, the assembly stability of the connector 3 is improved, the transmission efficiency is further improved, and in addition, since the first exhaust hole 13 and the inner cavity 11 are communicated and the second exhaust hole 35 and the first exhaust hole 13 are communicated, the gas in the inner cavity 11 can be discharged to the outside through the first exhaust hole 13 and the second exhaust hole 35 in turn during the compression of the first axial buffer 1, so that the internal pressure of the first axial buffer 1 is prevented from being too large to cause the vehicle transmission joint to be sharply heated, the normal operation of the vehicle transmission joint is ensured, and the use safety is improved.

[0070] The application provides a vehicle comprising the vehicle transmission joint.

[0071] The vehicle of the application has the same multi-stage vibration damping function as the vehicle transmission joint, can greatly improve the shock absorption effect, can improve the running stability of the vehicle, and can still stably transmit the vehicle transmission joint under the stretching and bending working conditions.

[0072] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the different embodiments or examples described in the present application and the features of the different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0073] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one feature. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0074] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of various changes or replacements within the technical range disclosed by the present application, and these should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A vehicle transmission joint, characterized in that: include: a first axial buffer, wherein a first axial end of the first axial buffer is used to be connected to an output end of a power device, and a second axial end of the first axial buffer is used to be connected to an input end of a load or an input end of a differential, the first axial buffer is axially retractable, and the first axial buffer has an inner cavity; a second axial buffer, the second axial buffer being disposed in the inner cavity, the second axial buffer having a first axial end connected to the first axial buffer, the second axial end of the second axial buffer being spaced from the first axial buffer to form a buffer gap, and the second axial buffer being axially retractable; The vehicle transmission joint also includes: a connector, the connector being provided on the first axial end of the first axial buffer, the connector being provided with an inner gear ring; An input shaft is provided with an input end and an outer ring gear, the input end is used to be connected to the output end of the power device, the outer ring gear is inserted into the inner ring gear and meshes with the inner ring gear, so that the inner ring gear rotates with the outer ring gear to drive the first axial buffer to rotate.

2. The vehicle transmission joint according to claim 1, characterized in that: The second axial buffer comprises: a first connecting member connected to the first axial buffer; a second connecting member, the second connecting member and the first connecting member are spaced apart from each other along the axial direction of the second axial buffer, and the second connecting member and the first axial buffer are spaced apart from each other to form the buffer gap; An elastic member is sandwiched between the first connecting member and the second connecting member to form a telescopic area, and the telescopic area can be telescoped along the axial direction.

3. The vehicle transmission joint according to claim 2, characterized in that: The second axial buffer further comprises: a first fastener, wherein the head of the first fastener abuts against a side of the first connecting member facing away from the elastic member, and the stem of the first fastener passes through the first connecting member, the elastic member, and the second connecting member in sequence; A fastening nut is threaded onto the rod of the first fastening member, and the fastening nut abuts against a side of the second connecting member facing away from the elastic member.

4. The vehicle transmission joint according to claim 1, characterized in that: The connector has a through hole on a side facing away from the first axial buffer, wherein the diameter of the through hole is smaller than the diameter of the central hole of the inner gear ring so as to form a first limiting end surface therebetween; The input shaft is provided with a first shaft segment and a second shaft segment arranged in sequence along its axial direction, the first shaft segment is provided with the input end, the first shaft segment passes through the through hole, the second shaft segment is provided with the outer gear ring, the outer diameter of the second shaft segment is larger than the outer diameter of the first shaft segment to form a second limiting end face therebetween, and the second limiting end face and the first limiting end face offset each other.

5. The vehicle transmission joint according to claim 4, characterized in that: The vehicle transmission joint also includes: A first buffer is sleeved on the first shaft segment and is sandwiched between the first limiting end surface and the second limiting end surface.

6. The vehicle transmission joint according to claim 4, characterized in that: A second buffer is provided on a side of the connector close to the first axial buffer, and the second buffer abuts against an end surface of the input shaft close to the outer gear ring.

7. The vehicle transmission joint according to claim 6, characterized in that: The connector has a positioning groove on one side close to the first axial buffer. The positioning groove is arranged around the inner gear ring, and the positioning groove is adapted to the second buffer member.

8. The vehicle transmission joint according to claim 1, characterized in that: The first axial end surface of the first axial buffer has a first connecting hole and a first exhaust hole, and the first exhaust hole is connected to the inner cavity; The connector has a second connecting hole and a second exhaust hole on a side close to the first axial buffer, the second connecting hole is connected to the first connecting hole, and the second exhaust hole is connected to the first exhaust hole; The vehicle transmission joint also includes: The second fastener has its head abutted against the side of the connector facing away from the first axial buffer, the rod of the second fastener passes through the second connecting hole and the first connecting hole in sequence, and the rod of the second fastener is screwed to the first connecting hole.

9. Automobile, characterized in that The vehicle transmission joint comprises the vehicle transmission joint according to any one of claims 1 to 8.

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