一种带轴套的链轮销轴连接装置
By introducing a lubrication mechanism and a disassembly mechanism into the sprocket pin connection device, the problem of local accumulation and loss of lubricating grease on the mating surface is solved, achieving lubrication stability and quick disassembly of the device, extending component life and improving equipment operational stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 杭州慧杭科技有限公司
- Filing Date
- 2025-10-23
- Publication Date
- 2026-07-17
AI Technical Summary
In the use of existing sprocket pin connection devices with bushings, the lubricating grease produced by the oil outlet hole accumulates locally and is partially missing on the mating surface, resulting in semi-dry friction or even dry friction, which shortens the life of the core components.
A sprocket pin connection device with a bushing was designed, which adopts a lubrication mechanism and a disassembly mechanism. The lubrication mechanism realizes the stable storage and quantitative delivery of lubricating grease through structures such as a limiting ring, a plug hole, a pin, and an oil outlet hole. The oil outlet hole cooperates with the oil discharge component to ensure the uniform distribution of lubricating grease. The disassembly mechanism realizes the quick disassembly and replacement of the device through structures such as a base plate, a positioning rod, and a limiting plate.
It achieves continuous and stable delivery of lubricating grease, avoids friction and wear, reduces component failure rate, shortens maintenance time, and improves equipment utilization.
Smart Images
Figure CN224515855U_ABST
Abstract
Claims
1. A sprocket bushed pin axle connection device comprising a pin axle (1) characterised in that: The pin (1) is provided with a lubrication mechanism (2) inside, which is used to automatically deliver lubricating grease to the mating gap when the connecting part is rotated. The bottom of the pin (1) is provided with a disassembly mechanism (3). The lubrication mechanism (2) includes a limiting ring (201), the bottom end of which is fixedly connected to the top of the pin (1). The bottom outer wall of the pin (1) has an insertion hole (202), and the inner wall of the insertion hole (202) is slidably connected to a locking rod (203). The top of the pin (1) has an oil inlet (204), and the top end of the pin (1) has an insertion hole (206). A pin (207) is slidably connected to the inner wall. A limit hole (209) is opened on the outer wall of the pin (207). An oil storage groove (211) is opened inside the top of the pin (1). Multiple oil outlet holes (210) are opened on the outer wall of the pin (1). The bottom ends of the multiple oil outlet holes (210) all pass through the pin (1) and are connected to the oil storage groove (211). An oil draining component (212) is provided on the inner wall of the multiple oil outlet holes (210).
2. A sprocket bushed pin axle connection as defined in claim 1 wherein: The disassembly mechanism (3) includes a base plate (301). The inner wall of the base plate (301) is slidably connected to the bottom of the pin (1). The outer wall of the base plate (301) is provided with a plurality of guide holes (302). The inner walls of the plurality of guide holes (302) are slidably connected with positioning rods (303). The bottom ends of the plurality of positioning rods (303) are slidably connected with a limiting plate (304). The outer wall of the limiting plate (304) is provided with a plurality of limiting grooves (305). The bottom end of the pin (1) is slidably connected with a bushing (306). The outer wall of the bushing (306) is slidably connected with a sprocket (308). The inner wall of the sprocket (308) is provided with a locking groove (309). The inner wall of the limiting plate (304) is fixedly connected with a bearing (311). The inner wall of the bearing (311) is fixedly connected with a connecting rod (310). The top end of the connecting rod (310) is fixedly connected to the bottom of the pin (1).
3. A bushed sprocket pin axle connection as defined in claim 1 wherein: The oil discharge assembly (212) includes an absorbent sponge (2121), one side of which is fixedly connected to the inner wall of the oil outlet (210), and the other side of which is fixedly connected to a filter layer (2122). One side of the filter layer (2122) is fixedly connected to an exudate layer (2123).
4. A bushed sprocket pin axle connection as defined in claim 1 wherein: The inner wall of the oil inlet (204) is slidably connected to a sealing cap (205), and the size of the oil inlet (204) matches that of the sealing cap (205).
5. A bushed sprocket pin axle connection as defined in claim 1 wherein: The lubrication mechanism (2) also includes a handle (208), the bottom of which is fixedly connected to the top of the pin (207).
6. A bushed sprocket pin axle connection as defined in claim 2 wherein: The disassembly mechanism (3) also includes a snap-fit head (307), the rear side of which is fixedly connected to the outer wall of the bushing (306), and the snap-fit head (307) engages with the engagement groove (309).
7. A bushed sprocket pin axle connection as defined in claim 2 wherein: The two ends of the positioning rod (303) are slidably connected to the inner walls of the guide hole (302) and the limiting groove (305), respectively, and the guide hole (302) and the limiting groove (305) correspond one-to-one.
8. A bushed sprocket pin axle connection as defined in claim 1 wherein: A rubber ring (4) is slidably connected to the outer wall of the pin (1), and the bottom of the rubber ring (4) is fixedly connected to the top of the base plate (301).