CN210050211U - Star cover with good lubricating effect - Google Patents
Star cover with good lubricating effect Download PDFInfo
- Publication number
- CN210050211U CN210050211U CN201920725475.5U CN201920725475U CN210050211U CN 210050211 U CN210050211 U CN 210050211U CN 201920725475 U CN201920725475 U CN 201920725475U CN 210050211 U CN210050211 U CN 210050211U
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- Prior art keywords
- oil
- groove
- shaft hole
- hole
- contact surface
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Abstract
The utility model discloses a lubricated effectual star cover, the protective sleeve comprises a sleeve body, the center department of the cover body is provided with the shaft hole, be provided with the spline groove on the periphery in shaft hole, be provided with a set of roller groove on the circumference surface of the cover body, the roller groove includes the contact surface, evenly distributed has a plurality of oil storage groove on the contact surface. The utility model relates to a simple structure, inside clearance lubricating oil reserve volume height, the lubricated effectual star cover of mobility are strong.
Description
Technical Field
The utility model relates to a star cover technical field specifically is a lubricated effectual star cover.
Background
The star cover is key spare part in the rzeppa constant velocity universal joint, and the ball groove surface in the star cover among the prior art sets up for complete curved surface, and in the course of the work, because some lubricating oil is less in the clearance, the friction is serious between ball and the star cover, and the surface wear of ball and ball groove is big, and the heat production is many, and can't in time dispel the heat, leads to the star cover life-span to hang down. Therefore, a new type of inner race with good lubrication effect is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lubricated effectual star cover to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the star-shaped sleeve with good lubricating effect comprises a sleeve body, wherein a shaft hole is formed in the center of the sleeve body, a spline groove is formed in the circumferential surface of the shaft hole, a group of roller grooves are formed in the outer circumferential surface of the sleeve body, each roller groove comprises a contact surface, and a plurality of oil storage grooves are uniformly distributed in the contact surface.
Preferably, both ends of one side of each roller groove, which is far away from the shaft hole, are provided with oil through holes, a group of oil through channels are arranged at the position, which is close to the outer ring, of the sleeve body, and the oil through holes between the adjacent roller grooves are connected by the oil through channels.
Preferably, the contact surface is a standard spherical surface, and an oil separating gap is formed between the contact surface and the ball.
Preferably, the surface of the roller groove is provided with an outer oil hole, the circumferential surface of the shaft hole is provided with a group of inner oil holes, and the outer oil hole is communicated with the inner oil holes through a connecting oil duct.
Preferably, a group of oil storage chambers are arranged on the circumferential inner surface of the shaft hole at the inner oil hole.
Preferably, an oil through groove is formed in the circumferential inner surface of the shaft hole and connected with the adjacent oil storage cavities.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses in, evenly distributed has a plurality of oil sumps on the contact surface in the roller groove, can store more lubricating oil in the oil sump to improve the lubricated effect of star cover. The oil passage is communicated with the adjacent roller grooves, so that the lubricating oil can flow between the adjacent roller grooves. The contact surface is a standard spherical surface, so that the assembly fit degree between the sleeve body and the ball can be improved, a certain amount of lubricating oil is always kept in the roller groove in the working process of the star-shaped sleeve due to the arrangement of the oil storage groove and the oil through passage, the sufficient amount of lubricating oil promotes the generation of an oil separation gap, the oil separation gap can improve the lubricating effect, and the abrasion is reduced. The outer oil hole is communicated with the inner oil hole through the connecting oil duct, so that the lubricating oil in the shaft hole and the ball groove can flow, and the fluidity of the lubricating oil in the star-shaped sleeve is improved. The oil storage cavity can improve the amount of lubricating oil in the shaft hole. The utility model relates to a simple structure, inside clearance lubricating oil reserve volume height, the lubricated effectual star cover of mobility are strong.
Drawings
FIG. 1 is a schematic view of a preferred lubrication spider;
FIG. 2 is a schematic view of a portion of the structure at K in FIG. 1;
FIG. 3 is a schematic view showing the surface structure of the central axial bore of the inner race having a good lubricating effect.
In the figure: 1-shaft hole, 2-spline groove, 3-sleeve body, 4-roller groove, 5-oil storage groove, 6-oil through hole, 7-oil through channel, 8-contact surface, 9-oil separation gap, 10-outer oil hole, 11-connecting oil channel, 12-inner oil hole, 13-oil storage cavity and 14-oil through groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a lubricated effectual star cover, includes the cover body 3, the center department of the cover body 3 is provided with shaft hole 1, be provided with spline groove 2 on the periphery of shaft hole 1, be provided with a set of roller groove 4 on the circumference surface of the cover body 3, roller groove 4 includes contact surface 8, evenly distributed has a plurality of oil storage grooves 5 on the contact surface 8.
In the assembling process, the spline groove 12 in the shaft hole 1 is matched and installed with a spline on the shaft, and the roller is installed in the roller groove 4 in a rolling matching manner; in the working process, a plurality of oil storage tanks 5 are uniformly distributed on the contact surface 8 in the roller groove 4, and more lubricating oil can be stored in the oil storage tanks 5, so that the lubricating effect of the star-shaped sleeve is improved.
Preferably, oil through holes 6 are formed in two ends of one side of each roller groove 4, which is far away from the shaft hole 1, a group of oil through channels 7 are formed in the position, close to the outer ring, of the sleeve body 3, and the oil through holes 6 between the adjacent roller grooves 4 are connected through the oil through channels 7.
The oil passage 7 communicates with the adjacent roller grooves 4 so that the lubricating oil can flow between the adjacent roller grooves 4.
Preferably, the contact surface 8 is a standard spherical surface, and an oil separation gap 9 is formed between the contact surface 8 and the ball.
The contact surface 8 is a standard spherical surface and can improve the assembly engagement degree between the sleeve body 3 and the ball, and due to the arrangement of the oil storage tank 5 and the oil through channel 7, a certain amount of lubricating oil is always kept in the roller groove 4 in the working process of the star-shaped sleeve, the sufficient amount of lubricating oil promotes the generation of the oil separation gap 9, the oil separation gap 9 can improve the lubricating effect, and the abrasion is reduced.
Preferably, the surface of the roller groove 4 is provided with an outer oil hole 10, the circumferential surface of the shaft hole 1 is provided with a group of inner oil holes 12, and the outer oil hole 10 is communicated with the inner oil holes 12 through a connecting oil passage 11.
The outer oil hole 10 is communicated with the inner oil hole 12 through a connecting oil passage 11, so that lubricating oil in the shaft hole 1 and the ball groove 4 can flow, and the fluidity of the lubricating oil in the star-shaped sleeve is improved.
Preferably, a set of oil reservoir chambers 13 are provided on the circumferential inner surface of the shaft hole 1 at the inner oil hole 12.
The oil reservoir 13 can increase the amount of lubricating oil in the shaft hole 1.
Preferably, an oil through groove 14 is provided on the circumferential inner surface of the shaft hole 1, and the oil through groove 14 connects the adjacent oil reservoir chambers 13.
The oil through groove 14 is used to communicate the lubricating oil in the adjacent oil reservoir chamber 13.
The utility model discloses a theory of operation is: the utility model relates to a star-shaped sleeve with good lubricating effect, in the assembling process, a spline groove 12 in a shaft hole 1 is matched and installed with a spline on a shaft, and a roller is installed in a rolling and matching way in a roller groove 4; in the working process, a plurality of oil storage tanks 5 are uniformly distributed on the contact surface 8 in the roller groove 4, and more lubricating oil can be stored in the oil storage tanks 5, so that the lubricating effect of the star-shaped sleeve is improved. The oil passage 7 communicates with the adjacent roller grooves 4 so that the lubricating oil can flow between the adjacent roller grooves 4. The contact surface 8 is a standard spherical surface and can improve the assembly engagement degree between the sleeve body 3 and the ball, and due to the arrangement of the oil storage tank 5 and the oil through channel 7, a certain amount of lubricating oil is always kept in the roller groove 4 in the working process of the star-shaped sleeve, the sufficient amount of lubricating oil promotes the generation of the oil separation gap 9, the oil separation gap 9 can improve the lubricating effect, and the abrasion is reduced. The outer oil hole 10 is communicated with the inner oil hole 12 through a connecting oil passage 11, so that lubricating oil in the shaft hole 1 and the ball groove 4 can flow, and the fluidity of the lubricating oil in the star-shaped sleeve is improved. The oil reservoir 13 can increase the amount of lubricating oil in the shaft hole 1. The oil through groove 14 is used to communicate the lubricating oil in the adjacent oil reservoir chamber 13.
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 departing from the spirit or essential 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.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a lubricated effectual star cover, includes cover body (3), its characterized in that: the center department of the cover body (3) is provided with shaft hole (1), be provided with spline groove (2) on the periphery of shaft hole (1), be provided with a set of roller groove (4) on the circumference surface of the cover body (3), roller groove (4) are including contact surface (8), evenly distributed has a plurality of oil storage groove (5) on contact surface (8).
2. A lubricated effective spider as claimed in claim 1, wherein: both ends that shaft hole (1) one side was kept away from in roller groove (4) are provided with logical oilhole (6), cover body (3) are close to outer lane department and are provided with a set of oil duct (7), and oil hole (6) between adjacent roller groove (4) are linked to each other by oil duct (7).
3. A lubricated effective spider as claimed in claim 1, wherein: the contact surface (8) is a standard spherical surface, and an oil separation gap (9) is formed between the contact surface (8) and the ball.
4. A lubricated effective spider as claimed in claim 1, wherein: the surface of the roller groove (4) is provided with an outer oil hole (10), the circumferential surface of the shaft hole (1) is provided with a group of inner oil holes (12), and the outer oil hole (10) is communicated with the inner oil holes (12) through a connecting oil duct (11).
5. A lubricated effective spider as claimed in claim 1, wherein: a group of oil storage chambers (13) are arranged on the circumferential inner surface of the shaft hole (1) and are positioned at the inner oil hole (12).
6. A lubricated effective spider as claimed in claim 1, wherein: an oil through groove (14) is formed in the circumferential inner surface of the shaft hole (1), and the oil through groove (14) is connected with the adjacent oil storage cavity (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920725475.5U CN210050211U (en) | 2019-05-21 | 2019-05-21 | Star cover with good lubricating effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920725475.5U CN210050211U (en) | 2019-05-21 | 2019-05-21 | Star cover with good lubricating effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210050211U true CN210050211U (en) | 2020-02-11 |
Family
ID=69382361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920725475.5U Expired - Fee Related CN210050211U (en) | 2019-05-21 | 2019-05-21 | Star cover with good lubricating effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210050211U (en) |
-
2019
- 2019-05-21 CN CN201920725475.5U patent/CN210050211U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200211 Termination date: 20210521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |