CN219013269U - Surface texture roller chain pin shaft - Google Patents
Surface texture roller chain pin shaft Download PDFInfo
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- CN219013269U CN219013269U CN202223051701.7U CN202223051701U CN219013269U CN 219013269 U CN219013269 U CN 219013269U CN 202223051701 U CN202223051701 U CN 202223051701U CN 219013269 U CN219013269 U CN 219013269U
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- pin shaft
- roller chain
- surface texture
- utility
- sleeve
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Abstract
The utility model discloses a roller chain pin shaft with a textured surface. The pin shaft surface of the roller chain is provided with circular pit textures which are uniformly arranged. The surface texture arrangement is parallel to the central axis of the pin shaft and is uniformly distributed. According to the utility model, the surface texture is processed on the surface of the pin shaft of the roller chain to store surface abrasive dust, store lubricating oil and increase the oil film bearing capacity, so that the friction and abrasion conditions and lubrication conditions of the pin shaft and the sleeve in the roller chain are improved, the service life of the roller chain is prolonged, and the mechanical efficiency is improved.
Description
Technical Field
The utility model relates to a pin roll, in particular to a roller chain pin roll, and belongs to the technical field of engineering.
Background
Roller chain wear failure is mainly due to excessive frictional wear between the pin and the sleeve. In the closed chain transmission at normal temperature, when the chain is meshed with the chain wheel, the pin shaft and the sleeve form a revolute pair. Under the working condition, the lubrication condition between the pin shaft and the sleeve is poor, and the friction and wear phenomenon is serious. The relative movement between the pin and the sleeve makes it difficult to form a dynamic oil film. Even when the lubricant is sufficiently supplied, mixed lubrication is always present in the friction portion. When lubrication is sufficient, the pin shaft and the sleeve are lubricated at the boundary; when lubrication is insufficient, the friction state is dry. With the increase of the working time of the chain transmission, the abrasion between the pin shaft and the sleeve is increased, and the chain is abraded and stretched. The pair of pin and sleeve directly affects the mechanical efficiency and service life of the roller chain, and it is necessary to improve the tribological properties between the pin and sleeve by surface technology.
In recent years, a great deal of research has shown that the smoother the surface is not the friction pair, the smaller the coefficient of friction between the friction pair. The surface texture technology is to process a micro structure with a certain size and a certain shape on the smooth surface, store abrasive dust on the surface of the friction pair, store lubricating oil for secondary lubrication, enhance the bearing force of an oil film and effectively improve the friction and abrasion condition and the lubrication condition of the surface of the friction pair.
Disclosure of Invention
The utility model aims to relieve frictional wear between a pin shaft and a sleeve of a roller chain, improve the mechanical efficiency of the roller chain and prolong the service life of the roller chain. Therefore, the round pit surface texture is processed on the surface of the pin shaft to collect abrasive dust generated by friction and abrasion, so that abrasive particle abrasion is reduced; storing lubricating oil for secondary lubrication; the bearing capacity of the oil film is enhanced, so that the lubrication condition between the pin shaft and the sleeve is improved, the friction and abrasion between the pin shaft and the sleeve are weakened, the mechanical efficiency of the roller chain can be effectively improved, and the service life of the roller chain is prolonged.
The utility model is realized in the following way: a surface textured roller chain pin. Circular pit textures which are uniformly arranged are arranged on the circumferential surface of the pin shaft.
In order to achieve the purpose, the utility model adopts the technical means that: the surface texture is processed on the circumferential surface of the pin shaft by a laser.
The further technical means are as follows: the circular pits with the surface texture are uniformly arranged on the surface of the pin shaft in a linear mode parallel to the central axis of the pin shaft.
The further technical means are as follows: the diameter d=50-300 mu m of the surface texture round pit, the depth h=50-100 mu m, and the area ratio of the texture is s=3-10%.
The further technical means are as follows: the spacing l=500-1000 μm between the surface texture circular pits.
The utility model has the beneficial effects that: the surface texture is processed on the surface of the pin shaft, so that abrasive dust generated by friction and abrasion can be collected, and the abrasion of abrasive particles is reduced, thereby weakening the friction and abrasion between the pin shaft and the sleeve.
The surface texture of the pin shaft is processed, so that lubricating oil can be stored under the condition of oil shortage, and secondary lubrication is performed, thereby improving the lubrication state between the pin shaft and the sleeve.
The surface texture is processed on the surface of the pin shaft, so that a tiny hydrodynamic bearing can be formed, and the oil film bearing capacity is enhanced, thereby improving the lubrication state and the contact condition between the pin shaft and the sleeve.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a side view of the present utility model;
FIG. 3 is an enlarged partial schematic view of the present utility model;
FIG. 4 is an assembled partial cross-sectional view of the present utility model;
FIG. 5 is a schematic structural view of a roller chain;
FIG. 6 is a partial cross-sectional view of a roller chain;
in the figure: 1-a pin shaft; 2-circular pit texture; 3-sleeve; 4-a roller; 5-an outer link plate; 6-inner chain plate.
Detailed Description
The present utility model will be further described with reference to the drawings and examples in order to make the objects, technical means and advantages of the present utility model more apparent.
As shown in fig. 1, 2 and 3, a roller chain pin with a textured surface is characterized by comprising a pin body 1 and a surface texture 2.
The surface texture 2 is a circular pit texture, and the linear lines parallel to the central axis of the pin shaft are uniformly arranged on the surface of the pin shaft.
The diameter d=200 μm and the depth h=100 μm of the surface texture circular pits, and the area ratio of the texture is s=4%.
The surface texture roller chain pin roll is characterized in that: the spacing between the surface texture circular pits l=600 μm.
Fig. 4 is a partial assembly view of the present utility model. The sleeve 3 is sleeved on the pin shaft 1, and the pin shaft 1 and the sleeve 3 form a pair of rotary friction pairs in the use process. The surface texture 2 can be used for storing abrasive dust, storing lubricating oil and enhancing the bearing force of an oil film, so that the friction and wear performance between the pin shaft and the sleeve is improved, the mechanical efficiency of the roller chain is improved, and the service life of the roller chain is prolonged.
The foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, but is not intended to limit the scope of the utility model.
Claims (5)
1. A surface textured roller chain pin, characterized by: the surface of the pin shaft (1) of the roller chain is provided with circular pit-shaped surface textures (2) which are uniformly arranged.
2. A surface textured roller chain pin according to claim 1, characterized in that: the surface textures (2) are uniformly arranged on the surface of the pin shaft in a linear mode parallel to the central axis of the pin shaft (1).
3. A surface textured roller chain pin according to claim 1, characterized in that: the surface texture (2) is processed on the surface of the pin shaft (1) by a laser.
4. A surface textured roller chain pin according to claim 1, characterized in that: the diameter d=50-300 mu m and the depth h=50-100 mu m of the round pits of the surface texture (2), and the area ratio of the surface texture (2) is s=3-10%.
5. A surface textured roller chain pin according to claim 1, characterized in that: the spacing l=500-1000 μm between the surface textures (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223051701.7U CN219013269U (en) | 2022-11-16 | 2022-11-16 | Surface texture roller chain pin shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223051701.7U CN219013269U (en) | 2022-11-16 | 2022-11-16 | Surface texture roller chain pin shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219013269U true CN219013269U (en) | 2023-05-12 |
Family
ID=86244449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223051701.7U Active CN219013269U (en) | 2022-11-16 | 2022-11-16 | Surface texture roller chain pin shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219013269U (en) |
-
2022
- 2022-11-16 CN CN202223051701.7U patent/CN219013269U/en active Active
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