CN214742864U - Cold extrusion universal joint for preventing bearing needle roller from inclining - Google Patents
Cold extrusion universal joint for preventing bearing needle roller from inclining Download PDFInfo
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- CN214742864U CN214742864U CN202120629079.XU CN202120629079U CN214742864U CN 214742864 U CN214742864 U CN 214742864U CN 202120629079 U CN202120629079 U CN 202120629079U CN 214742864 U CN214742864 U CN 214742864U
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- universal joint
- roller
- cross
- needle roller
- cap
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- 238000000641 cold extrusion Methods 0.000 title claims description 6
- 239000000428 dust Substances 0.000 claims abstract description 5
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a prevent cold crowded universal joint of bearing kingpin slope, affiliated universal joint technical field, including the cross, the cross on be equipped with four bearing assembly with cross nested connection, bearing assembly include the kingpin cap, kingpin cap and cross be equipped with the oil blanket between the cross, kingpin cap front end be equipped with the dust cover that cup joints mutually with the cross. The device has the characteristics of simple structure, good operation stability and long service life. The condition that the universal joint fails in advance due to the fact that the roller pins are inclined in the working process is prevented, and therefore the service life of the universal joint is effectively prolonged.
Description
Technical Field
The utility model relates to a universal joint technical field, concretely relates to prevent cold crowded universal joint of bearing kingpin slope.
Background
The universal joint is used for various automobiles, engineering machinery, ships and mechanical transmission parts, and plays a role in angle-variable power transmission. The design of a needle bearing of a universal joint is usually based on domestic and foreign standards, and according to the design requirement of bearing needle rollers on the standards, the total circumferential clearance of the needle bearing is not more than 0.5mm and is generally controlled to be between 0.2 and 0.4mm, so when the universal joint works, contact stress exists between a cross shaft and the needle rollers, the needle rollers incline when the needle rollers are subjected to larger contact stress, and once the needle rollers incline, the needle rollers are subjected to larger stress action from the cross shaft to cause the situations of needle roller breakage, indentation burning on the surfaces of a cross shaft journal and a bearing raceway and the like, so that the universal joint is enabled to fail in advance.
Disclosure of Invention
The utility model discloses mainly solve and have the running stability difference among the prior art and the short not enough of life, provide a prevent cold crowded universal joint of bearing kingpin slope, it has simple structure, the good and long service life's of running stability characteristics. The condition that the universal joint fails in advance due to the fact that the roller pins are inclined in the working process is prevented, and therefore the service life of the universal joint is effectively prolonged.
The above technical problem of the present invention can be solved by the following technical solutions:
a cold extrusion universal joint for preventing a bearing needle roller from inclining comprises a cross shaft, wherein four bearing assemblies which are connected with the cross shaft in a nested mode are arranged on the cross shaft, each bearing assembly comprises a needle roller cap, an oil seal is arranged between each needle roller cap and the cross shaft, and a dust cover which is sleeved with the cross shaft is arranged at the front end of each needle roller cap.
Preferably, the needle roller cap comprises a shaft sleeve, a plurality of needle rollers distributed annularly are arranged in the shaft sleeve, and a plurality of arc needle roller grooves clamped with the needle rollers one by one are formed in the inner wall of the shaft sleeve.
Preferably, a gasket sleeved with the cross shaft is arranged between the lower end of the needle roller and the shaft sleeve.
Preferably, the arc needle roller groove has an arc structure of 100 to 135 degrees.
The utility model discloses can reach following effect:
the utility model provides a prevent cold crowded universal joint of bearing kingpin slope compares with prior art, has simple structure, operating stability good and long service life's characteristics. The condition that the universal joint fails in advance due to the fact that the roller pins are inclined in the working process is prevented, and therefore the service life of the universal joint is effectively prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a structural sectional view of a bearing assembly according to the present invention.
Fig. 3 is a schematic structural view of the needle shaft cap of the present invention.
In the figure: the device comprises a bearing assembly 1, a cross shaft 2, a gasket 3, a needle shaft cap 4, an oil seal 5, a dust cover 6, a shaft sleeve 7, an arc needle roller groove 8 and a needle roller 9.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): as shown in fig. 1, 2 and 3, the cold extrusion universal joint for preventing the inclination of the bearing roller pins comprises a cross shaft 2, four bearing assemblies 1 which are connected with the cross shaft 2 in an embedded mode are arranged on the cross shaft 2, each bearing assembly 1 comprises a roller pin cap 4, each roller pin cap 4 comprises a shaft sleeve 7, 18 roller pins 9 which are distributed annularly are arranged in each shaft sleeve 7, and 18 arc roller pin grooves 8 which are clamped and embedded with the roller pins 9 one by one are formed in the inner wall of each shaft sleeve 7. The arc needle roller groove 8 is in an arc structure of 115 degrees. A gasket 3 which is sleeved with the cross shaft 2 is arranged between the lower end of the needle roller 9 and the shaft sleeve 7. An oil seal 5 is arranged between the needle roller shaft cap 4 and the cross shaft 2, and a dust cover 6 which is sleeved with the cross shaft 2 is arranged at the front end of the needle roller shaft cap 4.
In conclusion, the cold extrusion universal joint for preventing the bearing needle roller from inclining has the characteristics of simple structure, good operation stability and long service life. The condition that the universal joint fails in advance due to the fact that the roller pins are inclined in the working process is prevented, and therefore the service life of the universal joint is effectively prolonged.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without deviating from the basic characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
In conclusion, the above description is only the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.
Claims (1)
1. A cold extrusion universal joint for preventing bearing needle roller inclination comprises a cross shaft (2), and is characterized in that: the universal joint pin is characterized in that four bearing assemblies (1) which are connected with the universal joint pin (2) in a nested manner are arranged on the universal joint pin (2), each bearing assembly (1) comprises a needle roller cap (4), an oil seal (5) is arranged between each needle roller cap (4) and the universal joint pin (2), and a dust cover (6) which is sleeved with the universal joint pin (2) is arranged at the front end of each needle roller cap (4); the roller pin shaft cap (4) comprises a shaft sleeve (7), a plurality of roller pins (9) distributed in an annular mode are arranged in the shaft sleeve (7), a gasket (3) sleeved with the cross shaft (2) is arranged between the lower ends of the roller pins (9) and the shaft sleeve (7), a plurality of arc roller pin grooves (8) which are clamped and embedded with the roller pins (9) one by one are formed in the inner wall of the shaft sleeve (7), and the arc roller pin grooves (8) are of an arc-shaped structure of 100-135 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120629079.XU CN214742864U (en) | 2021-03-29 | 2021-03-29 | Cold extrusion universal joint for preventing bearing needle roller from inclining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120629079.XU CN214742864U (en) | 2021-03-29 | 2021-03-29 | Cold extrusion universal joint for preventing bearing needle roller from inclining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214742864U true CN214742864U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120629079.XU Active CN214742864U (en) | 2021-03-29 | 2021-03-29 | Cold extrusion universal joint for preventing bearing needle roller from inclining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214742864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901668A (en) * | 2021-03-29 | 2021-06-04 | 浙江钱富万向节有限公司 | Cold extrusion universal joint for preventing bearing roller pin from inclining and machining method thereof |
-
2021
- 2021-03-29 CN CN202120629079.XU patent/CN214742864U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901668A (en) * | 2021-03-29 | 2021-06-04 | 浙江钱富万向节有限公司 | Cold extrusion universal joint for preventing bearing roller pin from inclining and machining method thereof |
| CN112901668B (en) * | 2021-03-29 | 2024-02-02 | 浙江钱富万向节有限公司 | Cold extrusion universal joint capable of preventing bearing needle roller from tilting and processing method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 311243 Sanying Industrial Zone, Guali Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Qianfu Transmission Co.,Ltd. Country or region after: China Address before: 311243 Sanying Industrial Zone, Guali Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: Zhejiang Qianfu universal joint Co.,Ltd. Country or region before: China |