Driving joint component

Abstract

The utility model relates to a driving joint component, which comprises a driving joint fork, the driving joint fork comprises a joint fork main body and two joint fork arms which are integrally formed, the joint fork main body is provided with a mounting hole, and the joint fork arms are provided with rotating holes. The rotating shaft assembly comprises shaft sleeves installed at the two ends of the rotating hole, a shaft tube connected with the shaft sleeves in an inserted mode and end covers fixed to the ends of the shaft tube, the end covers are connected with the yoke arms in a sealed mode, the shaft tube is rotatably connected with the shaft sleeves, and an annular lubricating cavity is formed between the shaft tube and the rotating hole. The bearing piece is mounted in the mounting hole; the oil injection connector is installed on the yoke arm, and the oil injection connector is communicated with the lubricating cavity. The two ends of the shaft tube are supported in an overhead mode through the shaft sleeve, the space of the lubricating cavity is enlarged, the lubricating grease containing amount is increased, the lubricating duration of the lubricating cavity on the rotating shaft assembly is prolonged, and the risks of abrasion and abnormal sound are reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive suspension technology, and in particular to a drive joint component. Background Technology

[0002] The drive knuckle assembly is a crucial component connecting the wheels to the vehicle body, significantly impacting vehicle stability and safety. It is used to assemble and connect the wheels, caliper devices, and axle components. The spatial layout of the drive knuckle assembly and the flexibility of movement of the connected components must meet requirements for driving dynamics, rigidity, and strength.

[0003] The poor lubrication effect of the shaft tube in the drive joint component and the small grease storage space in the lubrication space can easily lead to grease loss during long-term operation of the drive joint component, resulting in technical problems such as excessive wear of the bushing and abnormal noise at the connection. Therefore, improvements are needed. Utility Model Content

[0004] To overcome the problems existing in the related technologies, this utility model provides a drive joint component to solve the technical problems such as excessive wear of the bushing part and abnormal noise of the connection part caused by easy loss of grease.

[0005] According to a first aspect of the present invention, a drive unit component is provided, comprising:

[0006] The drive fork includes an integrally formed fork body and two fork arms. The fork body is provided with mounting holes, and the fork arms are provided with rotating holes. The center lines of the two rotating holes are arranged in parallel, and the center line of the rotating holes and the center line of the mounting holes are perpendicular to each other.

[0007] The rotating shaft assembly includes bushings installed at both ends of the rotating hole, a shaft tube inserted into and connected to the bushings, and an end cap fixed to the end of the shaft tube. The end cap is sealed to the fork arm. The shaft tube and the bushings are rotatably connected. An annular lubrication cavity is provided between the shaft tube and the rotating hole.

[0008] The bearing component is installed in the mounting hole;

[0009] An oil injection connector is installed on the fork arm, and the oil injection connector is connected to the lubrication cavity.

[0010] In one embodiment, the bushing includes a plug portion and a stepped portion, the plug portion being plugged into the rotating hole, and the stepped portion abutting and confining the plug portion.

[0011] In one embodiment, the pivot assembly includes an elastic element mounted on the end cap, and the end of the fork arm partially protrudes to form an annular flange, the elastic element elastically abutting against the flange.

[0012] In one embodiment, the edge of the end cap is bent to form a reinforcing ring, and the elastic element is mounted on the reinforcing ring and abuts against the flange flange.

[0013] In one embodiment, the elastic element includes a sealing rib and a sealing lip, the sealing rib abutting against the bushing and the sealing lip sealingly abutting against the flange flange.

[0014] In one embodiment, the included angle between the two fork arms is in the range of 120 degrees to 150 degrees.

[0015] In one embodiment, the oil injection connector protrudes obliquely from the outward side of the fork body.

[0016] In one embodiment, the bearing component is a double-row roller bearing or a double-row deep groove ball bearing.

[0017] In one embodiment, the drive fork further includes a connecting boss that protrudes laterally from the fork body, the connecting boss having a through hole whose axis is parallel to the center line of the mounting hole.

[0018] In one embodiment, the drive fork is integrally cast, and the bushing is made of copper.

[0019] The technical solution provided by the embodiments of this utility model can include the following beneficial effects: the bushing supports both ends of the shaft tube, increasing the space of the lubrication cavity, which can accommodate a larger amount of lubricating grease, prolonging the lubrication time of the shaft assembly, and reducing the risk of wear and abnormal noise. The oil filling connector is connected to the lubrication cavity, enabling grease replenishment. The bushing avoids direct contact and friction between the shaft tube and the fork arm, resulting in a low coefficient of friction. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0021] Figure 1 This is a schematic diagram of the structure of a drive section component according to one embodiment.

[0022] Figure 2 This is a longitudinal cross-sectional view of a drive section component according to one embodiment.

[0023] Figure 3 This is a schematic cross-sectional view of a drive section component according to one embodiment.

[0024] Figure 4 yes Figure 3 Enlarged diagram of point A in the middle.

[0025] Figure 5This is an exploded structural diagram of a drive section component according to one embodiment.

[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of an elastic element according to one embodiment.

[0027] In the figure, the drive fork is 10; the fork body is 11; the fork arm is 12; the flange is 121; the mounting hole is 13; the rotating hole is 14; the connecting boss is 15; the through hole is 16; the lubrication cavity is 17; the shaft assembly is 20; the shaft tube is 21; the bushing is 22; the step is 221; the plug is 222; the end cover is 23; the reinforcing ring is 231; the elastic element is 24; the sealing rib is 241; the sealing lip is 242; the bearing is 30; and the oil filling joint is 40. Detailed Implementation

[0028] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] like Figures 1 to 3 As shown, this utility model provides a drive joint component, which includes a drive joint fork 10, a rotating shaft assembly 20, a bearing component 30, and an oil injection connector 40. The drive joint fork 10 includes an integrally formed fork body 11 and two fork arms 12, and the drive joint fork 10 has an approximately Y-shaped structure. Preferably, the included angle of the two fork arms 12 is in the range of 120 degrees to 150 degrees. The two fork arms 12 can be configured to be 120 degrees, 125 degrees, 130 degrees, 144 degrees, or 150 degrees.

[0030] The fork body 11 is provided with mounting holes 13, and the fork arm 12 is provided with rotating holes 14. The bearing 30 is installed in the mounting holes 13 of the drive fork 10. The center lines of the two rotating holes 14 are arranged parallel to each other, and the center lines of the rotating holes 14 and the mounting holes 13 are perpendicular to each other. The rotating shaft assembly 20 is installed in the rotating holes 14 and is rotatably connected to the drive fork 10.

[0031] The pivot assembly 20 includes bushings 22 mounted at both ends of the pivot hole 14, a shaft tube 21 inserted into and connected to the bushings 22, and an end cap 23 fixed to the end of the shaft tube 21. The bushings 22 and the fork arm 12 are fixedly connected. The shaft tube 21 and the bushings 22 are rotatably connected, and the end cap 23 is sealed to the fork arm 12. An annular lubrication cavity 17 is provided between the shaft tube 21 and the pivot hole 14. An oil injection connector 40 is mounted on the fork arm 12 and communicates with the lubrication cavity 17.

[0032] The bushing 22 provides overhead support for both ends of the shaft tube 21, increasing the space of the lubrication chamber 17. This allows for a larger capacity of lubricating grease, extending the lubrication time of the shaft assembly 20 and reducing the risk of wear and abnormal noise. The grease inlet connector 40 connects to the lubrication chamber 17, enabling grease replenishment. The bushing 22 prevents direct contact and friction between the shaft tube 21 and the fork arm 12, resulting in a low coefficient of friction.

[0033] Preferably, the bushing 22 is a hollow stepped shaft structure, and the bushing 22 is inserted into the fork arm 12. The shaft tube 21 is inserted into the bushing 22, and a lubrication cavity 17 is formed between the outer peripheral wall of the shaft tube 21 and the outer peripheral wall of the rotating hole 14. The diameter of the lubrication cavity 17 is adjusted by the size of the bushing 22, and the volume of the lubrication space can be easily adjusted.

[0034] The bushing 22 includes a plug portion 222 and a stepped portion 221. The outer diameter of the stepped portion 221 is larger than the outer diameter of the plug portion 222, forming a stepped shaft structure. The plug portion 222 is plugged into the rotating hole 14, and the stepped portion 221 abuts against and is confined within the plug portion 222. The plug portion 222 is adapted to the rotating hole 14, and the wall thickness of the plug portion 222 can adaptively adjust the spacing of the lubrication cavities 17.

[0035] Preferably, the shaft tube 21 is configured as a tubular shaft structure, and the outer peripheral wall of the shaft tube 21 is configured as an optical shaft structure.

[0036] Furthermore, the bushing 22 is made of copper. The bushing 22 can be made of brass or copper alloy, thereby improving the rotational flexibility of the bushing 22.

[0037] The drive fork 10 is manufactured by integral casting, while the fork body 11 and the two fork arms 12 are integrally formed by forging or casting, which greatly improves the stability and strength of the structure.

[0038] like Figures 3 to 6 As shown, the end cap 23 is fixed to the end of the shaft tube 21 and extends outward from the shaft tube 21 to block the mating part between the shaft tube 21 and the rotating hole 14.

[0039] Furthermore, the pivot assembly 20 includes an elastic element 24 mounted on the end cap 23. The end of the pivot arm 12 partially protrudes to form an annular flange 121, and the elastic element 24 elastically abuts against the flange 121. The flange 121 is a shaft-shaped protrusion on the end face of the pivot arm 12. The elastic element 24 is a rubber structural component to seal the joint between the end cap 23 and the flange 121, further reducing the leakage and loss of lubricating oil.

[0040] The end cap 23 has an annular structure, and its edge is curved to form a reinforcing ring 231. The cross-section of the end cap 23 is U-shaped. An elastic element 24 is installed on the reinforcing ring 231 and elastically abuts against the outer peripheral wall of the flange flange 121, forming an annular sealing area between the elastic element 24 and the flange flange 121. The reinforcing ring 231 is arranged around the flange flange 121 to form a concentric circle structure, and the elastic element 24 is installed on the reinforcing ring 231 and elastically abuts against the flange flange 121.

[0041] In a preferred embodiment, the elastic element 24 includes a sealing rib 241 and a sealing lip 242. The sealing rib 241 abuts against the bushing 22, and the sealing lip 242 seals against the flange flange 121. The sealing rib 241 is an annular curved rib to form an elastic compression deformation seal. The sealing lip 242 is an inclined protruding tongue structure, with its protrusion direction facing the end of the fork arm 12, and it seals against the outer peripheral wall of the flange flange 121 to achieve an elastic abutment seal. The sealing rib 241 and the sealing lip 242 constitute a double seal of the elastic element 24, resulting in a good sealing effect.

[0042] In one embodiment, the oil injection connector 40 protrudes at an angle toward the fork body 11. The oil injection connector 40 is connected to the fork arm 12 and the lubrication cavity 17 to inject lubricating oil. The angled arrangement of the oil injection connector 40 toward the fork body 11 allows for lubrication of the outside of the connection point, improving the ease of application.

[0043] Preferably, the two oil filling connectors 40 are arranged in a figure-eight shape to avoid the moving space of the drive joint components and improve the ease of connection.

[0044] like Figures 1 to 3 As shown, in one embodiment, the bearing component 30 employs a double-row roller bearing or a double-row deep groove ball bearing. The mounting hole 13 has an elongated structure, which allows the double-row roller bearing or double-row deep groove ball bearing to expand the support area and increase the load-bearing support area. Furthermore, the large axial length of the bearing component 30 improves connection stability.

[0045] In one embodiment, the drive fork 10 further includes a connecting boss 15 that protrudes laterally from the fork body 11. The connecting boss 15 has a through hole 16, the axis of which is parallel to the center line of the mounting hole 13. The connecting boss 15 protrudes from one side of the fork body 11, forming a lateral protrusion structure to enhance the structural strength of the fork body 11. Preferably, the connecting boss 15 has two through holes 16 for connecting the caliper assembly to achieve the connection of the caliper assembly.

[0046] Preferably, the connecting boss 15 is disposed at the intersection of the two segmented fork arms 12 to enhance the structural strength of the segmented fork arms 12. Furthermore, the intersection of the connecting boss 15 and the two segmented fork arms 12 further improves the structural strength.

[0047] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of this application and include common knowledge or customary technical means in the art that are not disclosed in this invention.

Claims

1. A drive joint component, characterized by The utility model relates to a drive yoke, comprising a yoke body and two yoke arms, the yoke body is provided with a mounting hole, the yoke arms are provided with rotating holes, the center lines of the two rotating holes are parallel, and the center lines of the rotating holes and the center line of the mounting hole are perpendicular to each other. The utility model relates to a rotating shaft assembly, comprising a shaft sleeve mounted at both ends of the rotating hole, a shaft tube connected to the shaft sleeve, and an end cover fixed to the end of the shaft tube, the end cover is sealingly connected to the yoke arm, the shaft tube and the shaft sleeve are rotatably connected, and the shaft tube and the rotating hole have an annular lubricating cavity. The utility model relates to a bearing piece mounted in the mounting hole. The utility model relates to an oil injection joint mounted on the yoke arm, which is in communication with the lubricating cavity. The shaft sleeve comprises a plug-in part and a step part, the plug-in part is connected to the rotating hole, and the step part abuts against the plug-in part.

2. The drive joint component of claim 1, wherein, The rotating shaft assembly comprises an elastic piece mounted on the end cover, the end of the yoke arm is partially protruding to form an annular flange, and the elastic piece elastically abuts against the flange.

3. The drive spool component of claim 1, wherein, The edge of the end cover is bent to form a reinforcing ring, the elastic piece is mounted on the reinforcing ring and abuts against the flange.

4. The drive spool component of claim 3, wherein, The elastic piece comprises a sealing protrusion and a sealing lip, the sealing protrusion abuts against the shaft sleeve, and the sealing lip sealingly abuts against the flange.

5. The drive spool component of claim 3, wherein, The included angle of the two yoke arms ranges from 120 degrees to 150 degrees.

6. The drive spool component of claim 1, wherein, The oil injection joint is inclined and protruded outward from the yoke body.

7. The drive spool component of claim 1, wherein, The bearing piece adopts double-row roller bearings or double-row deep groove ball bearings.

8. The drive spool component of claim 1, wherein, The drive yoke further comprises a connecting boss laterally protruding from the yoke body, the connecting boss is provided with a through hole, and the axis of the through hole is parallel to the center line of the mounting hole.

9. The drive spool component of claim 1, wherein, The drive yoke is integrally cast, and the shaft sleeve is made of copper.

10. The drive spool component of claim 1, wherein, ​

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