Grinding device for pin of roller chain
By designing a roller chain pin grinding device with a limited displacement conveying mechanism and a grinding mechanism, the problems of time-consuming, labor-intensive, and safety hazards in pin end burr treatment have been solved, realizing automated positioning and grinding of the pin, and improving production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SHUANGLING CHAIN TRANSMISSION
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-16
AI Technical Summary
In the existing technology, burrs exist at the ends of the roller chain pins, and manual polishing is time-consuming, labor-intensive, and poses safety hazards.
A roller chain pin grinding device was designed, which includes a limited displacement conveying mechanism and a grinding mechanism. The pin is positioned and ground by components such as a support table, movable plate, fixed plate, connecting rod, spring, limiting part, ring seat, and locking bolt. The grinding is automated by using a grinding machine and a guide plate.
It enables automated positioning and grinding of the pin shaft, improving production efficiency and reducing the safety risks of manual operation.
Smart Images

Figure CN224359874U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roller chain pin processing technology, and in particular to a grinding device for roller chain pins. Background Technology
[0002] A roller chain is a type of chain drive used for transmitting mechanical power. It is widely used in household, industrial, and agricultural machinery, including conveyors, plotters, printing presses, automobiles, motorcycles, and bicycles. It consists of a series of short cylindrical rollers linked together and driven by a gear called a sprocket. It is a simple, reliable, and efficient power transmission device.
[0003] The pins used in roller chains are cut by a cutting machine, and their ends will have burrs and other defects, making their surfaces not smooth enough. They need to be ground again. Normally, the pins are manually held close to the grinding machine for grinding, which is not only time-consuming and labor-intensive, but also prone to injury due to worker error, which is not conducive to production and processing. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a grinding device for roller chain pins, thereby solving the problems mentioned in the background section.
[0005] A grinding device for a roller chain pin includes a conveying mechanism for limiting the pin and a grinding mechanism for grinding the pin. The conveying mechanism includes a support platform, a movable plate, a fixed plate, a connecting rod, a spring, a first limiting part, a ring seat, a second limiting part, a connecting part, a locking bolt, and a support column. The bottom of the support platform is supported by a base. The fixed plate and the movable plate are mounted on the support platform from top to bottom. The connecting rod consists of multiple parts fixed to the bottom of the fixed plate and passing through the movable plate. The spring is sleeved on the lower end of the connecting rod and connected to the bottom of the movable plate. The first limiting part consists of multiple parts that are mounted around the side of the fixed plate. The ring seat is supported on the base by the support column. The second limiting part consists of multiple parts that are mounted around the inner ring of the ring seat and are staggered with the limiting parts on the side of the fixed plate. The fixed plate and the ring seat are limited by a limiting component.
[0006] The limiting component includes a connecting part and a locking bolt. The connecting part is rotatably mounted on the ring seat, and the locking bolt can be rotatably inserted into the threaded hole on the fixed plate through the waist hole of the connecting part.
[0007] The grinding mechanism includes a grinding machine and a guide plate. The grinding machine is mounted on the base via a bracket, and the guide plate is mounted on the bracket to guide the pin shaft to the underside of the grinding disc of the grinding machine.
[0008] By adopting the above technical solution, it is convenient to place the pin, position the pin, and perform end grinding.
[0009] The fixed plate is composed of a flat plate and an inclined plate. The flat plate has a notch on one side near the grinding disc of the grinder. One edge of the grinding disc of the grinder can be moved to the notch, and the bottom surface of the notch is set lower than the bottom of the grinding disc of the grinder.
[0010] By adopting the above technical solution, the pin can be smoothly transferred to the grinding machine for grinding.
[0011] The contact surfaces of the connecting part and the locking bolt are provided with anti-slip textures so that the locking bolt and the connecting part remain stable when the locking bolt is tightened on the fixed plate.
[0012] By adopting the above technical solution, the locking bolt and the connecting part can be tightly connected to prevent shaking.
[0013] Both the first limiting part and the second limiting part of the corresponding pair are provided with arc-shaped surfaces, and the arc-shaped surfaces of the first limiting part and the second limiting part are arranged opposite to each other.
[0014] By adopting the above technical solution, the pin shaft is limited.
[0015] The fixed plate is rotatably mounted on the top of the support platform, and the movable plate is movably disposed in the middle of the support platform.
[0016] By adopting the above technical solution, it is possible to support and move the pin.
[0017] The beneficial effects of the grinding device for roller chain pins of this utility model are:
[0018] The pin can be restricted by limiting part one and limiting part two, and the fixed plate and ring seat are limited by the cooperation of the connecting part and the locking bolt. The fixed plate is pushed to rotate on the support platform, and the ring seat is pushed to rotate on the support column at the same time. When the pin moves to the front of the grinding disc of the grinder, it will be guided by the guide plate and pressed down to slightly lower than the bottom of the grinding disc of the grinder. When the pin moves down, it will push down the movable plate and the pin will contact the bottom of the grinding disc of the grinder. The grinder can then be started to grind and deburr the end of the pin. The above operation can be repeated to send the pins to the bottom of the grinder for grinding. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the grinding device for the roller chain pin proposed in this utility model;
[0020] Figure 2 Another perspective view of the grinding device for the roller chain pin proposed in this utility model;
[0021] Figure 3 This is a schematic diagram of the component structure on the fixed plate of the grinding device for the roller chain pin proposed in this utility model.
[0022] Figure 4 This is a schematic diagram of the structure of the grinding device ring seat for the roller chain pin proposed in this utility model.
[0023] Figure 5 This is a schematic diagram of the structure of the grinding device bracket for the roller chain pin proposed in this utility model.
[0024] In the diagram: 1. Base; 2. Support platform; 3. Movable plate; 4. Fixed plate; 5. Connecting rod; 6. Spring; 7. Limiting part one; 8. Ring seat; 9. Limiting part two; 10. Connecting part; 11. Locking bolt; 12. Bracket; 13. Grinding machine; 14. Guide plate; 15. Pin; 16. Support column. Detailed Implementation
[0025] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.
[0026] Reference Figure 1-5 A grinding device for a roller chain pin includes a conveying mechanism for limiting the pin 15 and a grinding mechanism for grinding the pin 15. The conveying mechanism includes a support platform 2, a movable plate 3, a fixed plate 4, a connecting rod 5, a spring 6, a first limiting part 7, a ring seat 8, a second limiting part 9, a connecting part 10, a locking bolt 11, and a support column 16. The bottom of the support platform 2 is supported by a base 1. The fixed plate 4 and the movable plate 3 are installed on the support platform 2 from top to bottom. Multiple connecting rods 5 are fixed to the bottom of the fixed plate 4 and pass through the movable plate 3. The spring 6 is sleeved on the lower end of the connecting rod 5 and connected to the bottom of the movable plate 3. Multiple first limiting parts 7 are installed around the side of the fixed plate 4. The ring seat 8 is supported on the base 1 by the support column 16. Multiple second limiting parts 9 are installed around the inner ring of the ring seat 8 and are staggered with the first limiting parts 7 on the side of the fixed plate 4. The fixed plate 4 and the ring seat 8 are limited by a limiting component.
[0027] The limiting components include a connecting part 10 and a locking bolt 11. The connecting part 10 is rotatably mounted on the ring seat 8, and the locking bolt 11 can be inserted through the waist hole of the connecting part 10 and rotatably into the threaded hole on the fixed plate 4.
[0028] The grinding mechanism includes a grinding machine 13 and a guide plate 14. The grinding machine 13 is mounted on the base 1 via a bracket 12, and the guide plate 14 is mounted on the bracket 12 to guide the pin 15 to the bottom of the grinding disc of the grinding machine 13. It should be noted that the bracket 12 is detachably mounted on the base 1. The height of the grinding disc of the grinding machine 13 can be adjusted by using a bracket 12 of appropriate height according to the actual length of the pin 15 produced. Preferably, when placing the pin 15, the top of the pin 15 should be 2mm higher than the bottom surface of the grinding disc of the grinding machine 13. After the pin 15 moves to the grinding disc of the grinding machine 13, it can push the movable plate 3 downward slightly to ensure that the pin 15 is smoothly moved to the bottom of the grinding machine 13 for grinding by the grinding disc of the grinding machine 13.
[0029] The fixed plate 4 is composed of a flat plate and an inclined plate. The flat plate has a notch on the side near the grinding disc of the grinder 13. One edge of the grinding disc of the grinder 13 can be moved to the notch, and the bottom surface of the notch is set lower than the bottom of the grinding disc of the grinder 13; so as to facilitate the transfer of the pin 15 to the bottom of the grinder 13 for grinding.
[0030] The contact surfaces of the connecting part 10 and the locking bolt 11 are provided with anti-slip textures so that when the locking bolt 11 is tightened on the fixed plate 4, the locking bolt 11 and the connecting part 10 remain in a stable state; ensuring that the locking bolt 11 and the connecting part 10 stably limit the connection between the fixed plate 4 and the ring seat 8.
[0031] The corresponding set of limiting parts 1 7 and limiting parts 2 9 are both provided with arc-shaped surfaces. The arc-shaped surfaces of limiting parts 1 7 and limiting parts 2 9 are arranged opposite to each other, which can stably limit the pin 15.
[0032] The fixed plate 4 is rotatably mounted on the top of the support platform 2, and the movable plate 3 is movably set in the middle of the support platform 2 to support the pin 15 and move the pin 15.
[0033] In use, the pin 15 can be placed between the first limiting part 7 and the second limiting part 9, the fixing plate 4 can be pressed down, and the ring seat 8 can be rotated so that the first limiting part 7 and the second limiting part 9 restrict the pin 15. At this time, the position of the connecting part 10 can be adjusted, and the locking bolt 11 can be passed through the waist hole of the connecting part 10 and tightened into the threaded hole on the fixing plate 4. The fixing plate 4 and the ring seat 8 are restricted by the cooperation of the connecting part 10 and the locking bolt 11.
[0034] At this time, the fixed plate 4 can be pushed to rotate on the support platform 2, and the ring seat 8 can be pushed to rotate on the support column 16 simultaneously. The pin 15 moves to the front of the grinding disc of the grinder 13. It will be guided by the guide plate 14 and the top of the pin 15 will be pressed down to be slightly lower than the bottom of the grinding disc of the grinder 13. When the pin 15 moves down, it will push the movable plate 3 down. Then it moves to the bottom of the grinder 13 and the pin 15 contacts the bottom of the grinding disc of the grinder 13. The grinder 13 can be started to grind and deburr the end of the pin 15. The pins 15 can be sent to the bottom of the grinder 13 one by one for grinding in the same way.
[0035] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A grinding device for a roller chain pin, comprising a conveying mechanism for limiting the pin (15) and a grinding mechanism for grinding the pin (15), characterized in that: The transfer mechanism includes a support platform (2), a movable plate (3), a fixed plate (4), a connecting rod (5), a spring (6), a limiting part one (7), a ring seat (8), a limiting part two (9), a connecting part (10), a locking bolt (11), and a support column (16). The bottom of the support platform (2) is supported by a base (1). The fixed plate (4) and the movable plate (3) are installed on the support platform (2) from top to bottom. The connecting rod (5) consists of multiple rods fixed to the bottom of the fixed plate (4) and passing through the movable plate (6). 3) The spring (6) is sleeved on the lower end of the connecting rod (5) and connected to the bottom of the movable disk (3). The first limiting part (7) is a plurality of parts that are installed around the side of the fixed disk (4). The ring seat (8) is supported on the base (1) by the support column (16). The second limiting part (9) is a plurality of parts that are installed around the inner ring of the ring seat (8) and are staggered with the first limiting part (7) on the side of the fixed disk (4). The fixed disk (4) and the ring seat (8) are limited by the limiting component. The limiting component includes a connecting part (10) and a locking bolt (11). The connecting part (10) is rotatably mounted on the ring seat (8), and the locking bolt (11) can be inserted through the waist hole of the connecting part (10) and rotatably into the threaded hole on the fixing plate (4). The grinding mechanism includes a grinding machine (13) and a guide plate (14). The grinding machine (13) is mounted on the base (1) via a bracket (12). The guide plate (14) is mounted on the bracket (12) and is used to guide the pin (15) to the bottom of the grinding disc of the grinding machine (13).
2. The grinding device for roller chain pins according to claim 1, characterized in that: The fixed plate (4) is composed of a flat plate and an inclined plate. The flat plate has a notch on one side near the grinding disc of the grinder (13). The edge of one side of the grinding disc of the grinder (13) can be moved to the notch, and the bottom surface of the notch is set lower than the bottom of the grinding disc of the grinder (13).
3. The grinding device for roller chain pins according to claim 2, characterized in that: The contact surfaces of the connecting part (10) and the locking bolt (11) are provided with anti-slip textures so that when the locking bolt (11) is tightened on the fixed plate (4), the locking bolt (11) and the connecting part (10) remain in a stable state.
4. The grinding device for roller chain pins according to claim 3, characterized in that: The corresponding set of limiting part one (7) and limiting part two (9) are both provided with arc-shaped surfaces, and the arc-shaped surfaces of limiting part one (7) and limiting part two (9) are arranged opposite to each other.
5. The grinding device for roller chain pins according to claim 4, characterized in that: The fixed disk (4) is rotatably mounted on the top of the support platform (2), and the movable disk (3) is movably disposed in the middle of the support platform (2).