CN220452538U - Universal joint - Google Patents
Universal joint Download PDFInfo
- Publication number
- CN220452538U CN220452538U CN202322027014.XU CN202322027014U CN220452538U CN 220452538 U CN220452538 U CN 220452538U CN 202322027014 U CN202322027014 U CN 202322027014U CN 220452538 U CN220452538 U CN 220452538U
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- CN
- China
- Prior art keywords
- ring
- far away
- ball
- ball ring
- universal joint
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- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims 1
- 239000010687 lubricating oil Substances 0.000 abstract description 12
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 13
- 238000004401 flow injection analysis Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000641 cold extrusion Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Pivots And Pivotal Connections (AREA)
Abstract
The utility model relates to the technical field of universal joints, and particularly discloses a universal joint which comprises a three-pin frame body and three groups of three-fork joint shafts connected to the outer side of the three-pin frame body, wherein ball rings are arranged on the three-fork joint shafts, and needle rollers in contact with the ball rings are arranged on the outer walls of the three-fork joint shafts; the ball ring is provided with a check ring piece sleeved on the three-fork joint shaft at one side far away from the three-pin frame body, a limit disc is arranged at one side of the check ring piece far away from the ball ring, a stud is fixedly connected to one side of the limit disc, a thread groove matched with the thread of the stud is formed at one side of the three-fork joint shaft far away from the three-pin frame body, and a detachable end cover is connected to the limit disc; the annular drainage groove is arranged in the ball ring, and the limiting disc can limit the ball ring and the retainer ring piece, so that the ball ring and the retainer ring piece are stably arranged on the three-fork joint shaft, and the ball ring and the retainer ring piece are simple in structure and convenient to assemble and disassemble; the setting of cylindricality hole, annular drainage groove and class hole, the injection of lubricating oil is carried out from the opening part in cylindricality hole to the convenience, only need take out the sealing member during the operation, conveniently carries out the filling of lubricating oil.
Description
Technical Field
The utility model relates to the technical field of universal joints, in particular to a universal joint.
Background
The universal joint is a part for realizing variable-angle power transmission, is used for changing the position of the transmission axis direction, and is a joint part of a universal transmission device of an automobile driving system. The existing three-fork universal joint adopts a cylindrical shaft three-fork universal joint.
In the closed cold extrusion compact type constant-speed three-fork universal joint disclosed in the prior patent publication No. CN211117215U, the closed cold extrusion compact type constant-speed three-fork universal joint comprises a three-pin shaft body, rollers and a top cover, wherein through holes are formed in the surface of the three-pin shaft body, the number of the through holes is three, shaft heads are connected to the surfaces of the through holes, the rollers are sleeved on the surfaces of the shaft heads, rolling pins are arranged between the shaft heads and the rollers, protruding blocks are fixedly connected to the surfaces of the shaft heads, grooves matched with the protruding blocks are formed in the surfaces of the rolling pins, oil inlet channels are formed in two sides of the inner part of the shaft heads, an oil inlet hopper is communicated with an inlet of each oil inlet channel, an oil outlet is formed in the surface of each oil inlet channel, and the oil outlet extends to the outer part of the shaft heads; the two sides of the inner part of the shaft head are respectively provided with an oil inlet passage, an inlet of the oil inlet passage is communicated with an oil hopper, the surface of the oil inlet passage is provided with an oil outlet, and the oil outlet extends to the outer part of the shaft head, and the top cover is taken down, so that lubricating oil is added into the inner part of the three-fork universal joint, and the lubricating oil can uniformly infiltrate into the inner part of the three-fork universal joint; the two sliding rods are extruded, the sliding rods are placed in the connecting grooves, so that the sliding rods can be released, the sliding rods are well fixed through the clamping frame and the sliding groove plates, and the top cover is well fixed.
Among the above-mentioned universal joint, can lubricate in the gyro wheel, but during the dismouting, adopt card frame and draw runner board to fix the slide bar to fix the top cap, the operation is comparatively inconvenient, and need lay a plurality of parts in the spindle nose, increases universal joint structure loaded down with trivial details nature. Aiming at the problems, the universal joint with simple structure and convenient lubrication oil addition is provided.
Disclosure of Invention
The present utility model is directed to a universal joint that solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the universal joint comprises a three-pin frame body and three groups of three-fork joint shafts connected to the outer side of the three-pin frame body, wherein a ball ring is arranged on each three-fork joint shaft, and a needle roller in contact with the ball ring is arranged on the outer wall of each three-fork joint shaft;
the ball ring is provided with a check ring piece sleeved on the tripod shaft at one side far away from the tripod shaft, a limit disc is arranged at one side far away from the ball ring, a stud is fixedly connected to one side of the limit disc, a thread groove matched with the stud in a thread manner is formed in one side far away from the tripod shaft, and a detachable end cover is connected to the limit disc;
the ball ring is internally provided with an annular drainage groove, the inner wall of the ball ring is provided with a plurality of drainage holes communicated with the annular drainage groove, the ball ring is provided with a cylindrical hole communicated with the annular drainage groove, and a sealing piece is arranged at the opening of the cylindrical hole communicated with the outside.
In one alternative: the retainer ring piece comprises a retainer ring, and one side, far away from the ball ring, of the retainer ring is connected with a clamp spring.
In one alternative: the inner diameter of the clamp spring is smaller than the outer diameter of the limiting disc.
In one alternative: one side of the limiting disc, which is far away from the stud, is provided with an inner hexagonal groove.
In one alternative: the annular inner wall of the end cover is connected with an inner positioning ring, and the annular outer wall of the limiting disc is provided with a positioning ring groove matched with the inner positioning ring.
In one alternative: one side of the end cover, which is far away from the limiting disc, is a spherical surface.
In one alternative: and the inner wall of the three-pin frame body is provided with a spline.
In one alternative: the sealing piece comprises a threaded sealing plug, an inner wall of the cylindrical hole, which is close to the opening, is provided with an inner thread matched with the threaded sealing plug, and one end, which is far away from the annular drainage groove, of the threaded sealing plug is provided with a bolt groove.
In one alternative: one side of the ball ring, which is far away from the check ring piece, is provided with a gasket sleeved on the three-fork joint shaft, and one side of the gasket, which is far away from the ball ring, is provided with a rubber gasket connected on the three-fork joint shaft.
Compared with the prior art, the utility model has the beneficial effects that:
after the ball ring and the retainer ring piece are arranged on the three-fork joint shaft, the stud is connected in the threaded groove, and the limiting disc can limit the ball ring and the retainer ring piece, so that the ball ring and the retainer ring piece are stably arranged on the three-fork joint shaft, and the three-fork joint shaft is simple in structure and convenient to assemble and disassemble;
according to the utility model, the cylindrical hole, the annular drainage groove and the flow injection hole are arranged, so that the injection of lubricating oil is conveniently carried out from the opening of the cylindrical hole, and the sealing piece is only required to be taken out during operation, so that the filling of the lubricating oil is conveniently carried out;
the end cover can further protect the limiting disc.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a partially disassembled structure of the present utility model.
FIG. 3 is a schematic cross-sectional view of the spacing disc and end cap of the present utility model.
FIG. 4 is a schematic cross-sectional view of the ball ring of the present utility model.
In the figure: 11. a three-pin frame; 12. a spline; 13. a ball ring; 14. an end cap; 15. a three-fork joint shaft; 16. needle roller; 17. a thread groove; 18. a gasket; 19. a retainer ring; 20. clamping springs; 21. a limiting disc; 22. an inner hexagonal groove; 23. a stud; 24. an inner positioning ring; 25. positioning ring grooves; 26. a cylindrical hole; 27. a threaded sealing plug; 28. an annular drainage groove; 29. and a flow orifice.
Detailed Description
Example 1
Referring to fig. 1-4, in the embodiment of the present utility model, the universal joint includes a tripod body 11 and three sets of three-way joint shafts 15 connected to the outer side of the tripod body 11, a ball ring 13 is installed on the three-way joint shafts 15, and a needle roller 16 contacting with the ball ring 13 is installed on the outer wall of the three-way joint shaft 15;
the ball ring 13 is provided with a check ring piece sleeved on the three-fork joint shaft 15 at the side far away from the three-pin frame 11, a limit disc 21 is arranged at the side far away from the ball ring 13, a stud 23 is fixedly connected to one side of the limit disc 21, a thread groove 17 in threaded fit with the stud 23 is arranged at the side far away from the three-fork joint shaft 15, and a detachable end cover 14 is connected to the limit disc 21;
the stud 23 is connected in the thread groove 17, and the limiting disc 21 can limit the ball ring 13 and the retainer ring piece, so that the ball ring 13 and the retainer ring piece are stably arranged on the three-fork shaft, and the structure is simple, and the disassembly and assembly are convenient;
an annular drainage groove 28 is formed in the ball ring 13, a plurality of flow injection holes 29 communicated with the annular drainage groove 28 are formed in the inner wall of the ball ring 13, a cylindrical hole 26 communicated with the annular drainage groove 28 is formed in the ball ring 13, and a sealing piece is arranged at an opening part of the cylindrical hole 26 communicated with the outside;
after the sealing piece is taken out, lubricating oil is conveniently added from the cylindrical hole 26, the lubricating oil flows to the corresponding flow injection hole 29 in the annular drainage groove, and the lubricating oil flows between the ball ring 13 and the three-fork joint shaft 15 from the flow injection hole 29, so that the ball ring 13 can smoothly rotate.
The retainer piece comprises a retainer 19, and a clamp spring 20 is connected to one side, away from the ball ring 13, of the retainer 19.
The inner diameter of the clamp spring 20 is smaller than the outer diameter of the limiting disc 21; so that the limiting disc 21 can play a limiting and blocking role.
An inner hexagonal groove 22 is formed in one side, far away from the stud 23, of the limiting plate 21; the limiting plate 21 is turned by a tool conveniently.
The annular inner wall of the end cover 14 is connected with an inner positioning ring 24, and the annular outer wall of the limiting disc 21 is provided with a positioning ring groove 25 matched with the inner positioning ring 24; when the end cover 14 is installed, the positioning ring 24 is clamped into the positioning ring groove 25, so that the position of the end cover 14 can be fixed; the inner retaining ring 24 may be a rubber material.
The side of the end cover 14 away from the limiting plate 21 is a spherical surface.
The inner wall of the three-pin frame 11 is provided with a spline 12.
The sealing piece comprises a threaded sealing plug 27, an inner wall of the cylindrical hole 26 close to the opening is provided with an inner thread matched with the threaded sealing plug 27, and one end of the threaded sealing plug 27 far away from the annular drainage groove 28 is provided with a bolt groove;
the threaded sealing plug 27 is in threaded connection with the opening, the opening of the cylindrical hole 26 can be plugged, the bolt groove is formed, and the threaded sealing plug 27 can be rotated by using tools conveniently.
In the embodiment, the stud 23 is connected in the thread groove 17, and the limiting disc 21 can limit the ball ring 13 and the retainer ring piece, so that the ball ring 13 and the retainer ring piece are stably arranged on the three-fork shaft;
the threaded sealing plug 27 is taken out, so that lubricating oil is conveniently added from the cylindrical hole 26, the lubricating oil flows to the corresponding flow injection hole 29 in the annular drainage groove, and the lubricating oil flows between the ball ring 13 and the three-fork joint shaft 15 from the flow injection hole 29, so that the ball ring 13 can smoothly rotate.
Example 2
The difference from the embodiment 1 is that a gasket 18 sleeved on the three-fork joint shaft 15 is arranged on one side of the ball ring 13 away from the retainer ring piece, and a rubber gasket connected on the three-fork joint shaft 15 is arranged on one side of the gasket 18 away from the ball ring 13;
in this embodiment, the arrangement of the gasket 18 and the rubber washer reduces the abrasion to the tripod body 11 when the ball ring 13 rotates, and the gasket 18 and the rubber washer can be replaced later.
Claims (9)
1. The universal joint comprises a three-pin frame body (11) and three groups of three-fork joint shafts (15) connected to the outer side of the three-pin frame body (11), wherein a ball ring (13) is arranged on each three-fork joint shaft (15), and a needle roller (16) in contact with the ball ring (13) is arranged on the outer wall of each three-fork joint shaft (15);
the method is characterized in that: the ball ring (13) is provided with a check ring piece sleeved on the three-fork joint shaft (15) at one side far away from the three-pin frame body (11), a limit disc (21) is arranged at one side far away from the ball ring (13), a stud (23) is fixedly connected to one side of the limit disc (21), a thread groove (17) in threaded fit with the stud (23) is formed in one side far away from the three-fork joint shaft (15), and a detachable end cover (14) is connected to the limit disc (21);
an annular drainage groove (28) is formed in the ball ring (13), a plurality of filling holes (29) communicated with the annular drainage groove (28) are formed in the inner wall of the ball ring (13), a cylindrical hole (26) communicated with the annular drainage groove (28) is formed in the ball ring (13), and a sealing piece is arranged at the opening of the cylindrical hole (26) communicated with the outside.
2. A universal joint according to claim 1, wherein: the retainer ring piece comprises a retainer ring (19), and one side, far away from the ball ring (13), of the retainer ring (19) is connected with a clamp spring (20).
3. A universal joint according to claim 2, wherein: the inner diameter of the clamp spring (20) is smaller than the outer diameter of the limiting disc (21).
4. A universal joint according to claim 1, wherein: one side of the limiting disc (21) far away from the stud (23) is provided with an inner hexagonal groove (22).
5. A universal joint according to claim 1, wherein: the annular inner wall of the end cover (14) is connected with an inner positioning ring (24), and the annular outer wall of the limiting disc (21) is provided with a positioning ring groove (25) matched with the inner positioning ring (24).
6. A universal joint according to claim 1, wherein: one side of the end cover (14) far away from the limiting disc (21) is a spherical surface.
7. A universal joint according to claim 1, wherein: the inner wall of the three-pin frame body (11) is provided with a spline (12).
8. A universal joint according to claim 1, wherein: the sealing piece comprises a threaded sealing plug (27), an inner wall, close to the opening, of the cylindrical hole (26) is provided with an inner thread matched with the threaded sealing plug (27), and one end, far away from the annular drainage groove (28), of the threaded sealing plug (27) is provided with a bolt groove.
9. A universal joint according to claim 1, wherein: one side of the ball ring (13) far away from the check ring piece is provided with a gasket (18) sleeved on the three-fork joint shaft (15), and one side of the gasket (18) far away from the ball ring (13) is provided with a rubber gasket connected on the three-fork joint shaft (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322027014.XU CN220452538U (en) | 2023-07-31 | 2023-07-31 | Universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322027014.XU CN220452538U (en) | 2023-07-31 | 2023-07-31 | Universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220452538U true CN220452538U (en) | 2024-02-06 |
Family
ID=89727808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322027014.XU Active CN220452538U (en) | 2023-07-31 | 2023-07-31 | Universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220452538U (en) |
-
2023
- 2023-07-31 CN CN202322027014.XU patent/CN220452538U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |