Chain polishing and positioning device

By designing a chain grinding positioning device, a fast tensioning installation of the chain is achieved using a fixed rod, gears, and a tension mechanism. Combined with the cooperation of the rotating roller and the support roller, the problem of unstable chain grinding positioning is solved, enabling stable grinding and double-sided grinding of the chain, and improving grinding efficiency.

CN223889623UActive Publication Date: 2026-02-10TIANJIN DINGXIN CHAIN CO LTD
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Patent Information

Application Number
CN202423110275.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2026-02-10
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

Existing chain grinding and positioning fixtures cannot be adapted to the overall size of the chain, resulting in the inability to stably tension and position chains of various sizes, and making chain installation inconvenient.

Method used

A chain grinding and positioning device was designed. Through the cooperation of a fixed rod, gears and driven gears, a tension mechanism is used to achieve rapid tensioning and installation of the chain, and double-sided grinding is achieved through the cooperation of a rotating roller and a support roller.

Benefits of technology

It enables rapid tensioning and stable grinding of the chain, ensuring the chain's stability during the grinding process, and can grind both sides of the chain simultaneously, thus improving grinding efficiency.

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Abstract

The utility model provides a chain polishing and positioning device which comprises a fixing seat, a supporting rod is welded to the fixing seat, a fixing groove is formed in the fixing seat, a fixing block is movably installed in the fixing groove, a fixing rod is welded to the fixing block, supporting plates are welded to one side of the fixing rod and one side of the supporting rod, and the supporting plates are welded to the other side of the fixing rod and one side of the supporting rod. A driving motor is fixedly installed on the supporting rod, a gear and a driven gear are rotationally installed on the supporting plate, the gear is installed on the driving motor through an output shaft, and a chain is movably installed between the gear and the driven gear. When the chain polishing and positioning device is used, the fixing rod is moved towards the direction of the supporting rod, the width between the gear and the driven gear is reduced through movement, after a chain is installed on the gear and the driven gear, the fixing rod is moved through pulling force of the pulling force mechanism, and rapid tightening installation of the chain is completed through movement of the fixing rod.
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Description

Technical Field

[0001] This utility model relates to the field of chain polishing equipment, specifically a chain polishing positioning device. Background Technology

[0002] After processing and assembly, burrs on the chain surface need to be removed. During chain polishing, positioning fixtures are required to ensure chain stability. However, existing chain polishing positioning fixtures are not easily adapted to the overall chain dimensions for positioning and tensioning, thus preventing them from tensioning and positioning chains of various sizes.

[0003] According to patent document CN218837252U, a device for chain grinding includes a base plate. A support column and two uprights are slidably fitted on the upper side of the base plate. A hydraulic push rod is provided on one side of the support column, and two electric push rods are mounted on the upper side of the support column. Each electric push rod has a deburring mechanism at its output end. A threaded rod is rotatably fitted between the two uprights. A fixing block is fixed to the upper end of each upright, and a connecting rod is rotatably fitted to one side of each fixing block. In use, the connecting rod facilitates the upward movement of the support block during the opposite movement of the two uprights, thereby facilitating the adjustment of the height of the sprocket on the fixing column and thus adjusting the chain tension. However, while this solution achieves tension adjustment, it cannot quickly tighten the chain during initial installation, causing inconvenience in use. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a chain grinding and positioning device to solve the problems mentioned in the background art. This utility model has a novel structure. In use, the fixed rod is moved towards the support rod, which reduces the width between the gear and the driven gear. After the chain is installed on the gear and the driven gear, the fixed rod is moved by the pulling force of the tension mechanism. The movement of the fixed rod completes the rapid tensioning and installation of the chain.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a chain grinding and positioning device, comprising a fixed base, a support rod welded to the fixed base, a fixed groove formed on the fixed base, a fixed block movably installed inside the fixed groove, a fixed rod welded to the fixed block, a support plate welded to one side of both the fixed rod and the support rod, a drive motor fixedly installed on the support rod, a gear and a driven gear rotatably installed on the support plate, the gear being mounted on the drive motor via an output shaft, and a chain movably installed between the gear and the driven gear.

[0006] Furthermore, a limiting seat is welded onto the fixed base, the limiting seat has a sliding groove, a slider is movably installed inside the sliding groove, and a rotating roller is rotatably installed on the slider.

[0007] Furthermore, a lifting mechanism is fixed to the top of the limiting seat, one end of the lifting mechanism is fixed to the slider, a power mechanism is fixedly installed on the slider, and one end of the rotating roller is installed on the power mechanism.

[0008] Furthermore, a support roller is fixedly installed on the limiting seat, the support roller is installed at the bottom of the chain, and the rotating roller is rotatably installed between the chains.

[0009] Furthermore, a tension mechanism is fixed inside the fixing groove, one end of which is fixed to a fixing block, and a positioning hole is provided on the fixing block.

[0010] Furthermore, a displacement mechanism is fixedly installed inside the fixing groove, and one end of the displacement mechanism is in movable contact with the positioning hole.

[0011] The beneficial effects of this utility model are:

[0012] 1. In use, the fixed rod is moved toward the support rod, which reduces the width between the gear and the driven gear. After the chain is installed on the gear and the driven gear, the fixed rod is moved by the tension of the tension mechanism. The movement of the fixed rod completes the rapid tensioning and installation of the chain.

[0013] 2. In this chain grinding and positioning device, the displacement mechanism pushes the fixed block to move during grinding, and the displacement mechanism pushes one end of the chain to tighten. The fixed rod completes the fixing of the chain under the limit fixation, which facilitates the stability of the chain during the later grinding.

[0014] 3. This chain grinding and positioning device, during grinding, rotates the roller to push the chain into contact with the support roller. At the same time, the rotating roller and the support roller cooperate to readjust the tension of the chain. The rotating roller rotates at the same time as the chain rotates. The rotating roller and the support roller cooperate to achieve simultaneous grinding of both sides of the chain. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a chain grinding and positioning device according to the present invention;

[0016] Figure 2 This is a schematic diagram of the gear structure of a chain grinding and positioning device according to the present invention;

[0017] Figure 3 This is an enlarged structural diagram of point A of the chain grinding and positioning device of this utility model;

[0018] Figure 4 This is a schematic diagram of the chain and rotating roller cooperation structure of a chain grinding and positioning device according to this utility model;

[0019] Figure 5 This is a schematic diagram of the power mechanism of a chain grinding and positioning device according to the present invention;

[0020] In the diagram: 1. Fixed base; 2. Support rod; 3. Support plate; 4. Drive motor; 5. Fixed groove; 6. Fixed rod; 7. Chain; 8. Limit seat; 9. Slide groove; 10. Slider; 11. Lifting mechanism; 12. Support roller; 13. Rotating roller; 14. Gear; 15. Fixed block; 16. Positioning hole; 17. Displacement mechanism; 18. Tension mechanism; 19. Power mechanism. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1 to 5 This utility model provides a technical solution: a chain grinding and positioning device, including a fixed base 1, a support rod 2 welded on the fixed base 1, a fixed groove 5 on the fixed base 1, a fixed block 15 movably installed inside the fixed groove 5, a fixed rod 6 welded on the fixed block 15, a support plate 3 welded to one side of both the fixed rod 6 and the support rod 2, a drive motor 4 fixedly installed on the support rod 2, a gear 14 and a driven gear rotatably installed on the support plate 3 respectively, the gear 14 being mounted on the drive motor 4 via an output shaft, a chain 7 movably installed between the gear 14 and the driven gear, a limit seat 8 welded on the fixed base 1, a sliding groove 9 on the limit seat 8, a slider 10 movably installed inside the sliding groove 9, a rotating roller 13 rotatably installed on the slider 10, the gear 14 driving the chain 7 to rotate actively, and the chain 7 contacting and rubbing against the support roller 12 during active rotation to achieve burr grinding.

[0023] In this embodiment, a lifting mechanism 11 is fixed to the top of the limiting seat 8. One end of the lifting mechanism 11 is fixed to the slider 10. A power mechanism 19 is fixedly installed on the slider 10. One end of the rotating roller 13 is installed on the power mechanism 19, which is a DC motor. The DC motor drives the rotating roller 13 to rotate. A support roller 12 is fixedly installed on the limiting seat 8. The support roller 12 is installed at the bottom of the chain 7. The rotating roller 13 is rotatably installed between the chains 7. A tension mechanism 18 is fixed inside the fixing groove 5. A tension spring is used to move the fixed rod 6, causing the driven gear on the fixed rod 6 to quickly tighten one end of the chain 7. One end of the tension mechanism 18 is fixed to the fixed block 15, and the fixed block 15 has a positioning hole 16. A displacement mechanism 17 is fixedly installed inside the fixed groove 5. One end of the displacement mechanism 17 is in contact with the positioning hole 16. Both the displacement mechanism 17 and the lifting mechanism 11 are linear reciprocating electric push rods. The lifting mechanism 11 pushes the rotating roller 13 to squeeze the chain 7, and the squeezing achieves full contact and grinding between the rotating roller 13 and the chain 7.

[0024] In use, the device moves the fixing rod 6, causing the fixing block 15 to move inside the fixing groove 5. As the fixing block 15 moves, it pulls and deforms the tension mechanism 18, generating a reverse tension. One end of the chain 7 is preferentially mounted on the gear 14, and then the center of the chain 7 is mounted on the rotating roller 13. The rotating roller 13 supports the center of the chain 7. After one end of the chain 7 is mounted on the driven gear, the fixing rod 6 is released. Under the pull of the tension mechanism 18, the fixing rod 6 moves in the opposite direction to the support rod 2. The driven gear quickly tightens the chain 7. After the chain 7 is tightened and installed, the displacement mechanism 17 is activated to contact the positioning hole 16 and support the fixing block 15, preventing the chain 7 from falling off due to shaking of the fixing rod 6 during later grinding. During grinding, the lifting mechanism 11 is activated. The rotating roller 13 is pushed to move downwards, causing the chain 7 between the support roller 12 to deform. The chain 7 is in three-point contact with the rotating roller 13 and the support roller 12. The chain 7 moves downwards under the push of the rotating roller 13. The displacement mechanism 17 controls the position of the fixed rod 6. The fixed rod 6 moves inwards and then outwards, so that the rotating roller 13 and the driven gear cooperate to tighten the chain 7. During grinding, the drive motor 4 drives the chain 7 to rotate actively. At the same time as the chain 7 rotates, the rotating roller 13 rotates synchronously. The rotating roller 13 and the chain 7 rotate in opposite directions. The opposite grinding force grinds the burrs on one side of the chain 7. In addition, the chain 7 moves on the support roller 12. When the chain 7 moves, the support roller 12 provides double support and grinding for the burrs on the other side of the chain 7, which facilitates the subsequent grinding process.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A chain grinding and positioning device, comprising a fixed base (1), characterized in that: A support rod (2) is welded on the fixed base (1). A fixed groove (5) is opened on the fixed base (1). A fixed block (15) is movably installed inside the fixed groove (5). A fixed rod (6) is welded on the fixed block (15). A support plate (3) is welded on one side of both the fixed rod (6) and the support rod (2). A drive motor (4) is fixedly installed on the support rod (2). A gear (14) and a driven gear are rotatably installed on the support plate (3). The gear (14) is installed on the drive motor (4) through an output shaft. A chain (7) is movably installed between the gear (14) and the driven gear.

2. The chain grinding and positioning device according to claim 1, characterized in that: A limiting seat (8) is welded onto the fixed seat (1). A sliding groove (9) is opened on the limiting seat (8). A slider (10) is movably installed inside the sliding groove (9). A rotating roller (13) is rotatably installed on the slider (10).

3. The chain grinding and positioning device according to claim 2, characterized in that: The top of the limiting seat (8) is fixed with a lifting mechanism (11), one end of the lifting mechanism (11) is fixed on the slider (10), and a power mechanism (19) is fixedly installed on the slider (10). One end of the rotating roller (13) is installed on the power mechanism (19).

4. The chain grinding and positioning device according to claim 3, characterized in that: A support roller (12) is fixedly installed on the limiting seat (8). The support roller (12) is installed at the bottom of the chain (7). The rotating roller (13) is rotatably installed between the chains (7).

5. The chain grinding and positioning device according to claim 1, characterized in that: A tension mechanism (18) is fixed inside the fixing groove (5). One end of the tension mechanism (18) is fixed on the fixing block (15). The fixing block (15) has a positioning hole (16).

6. The chain grinding and positioning device according to claim 5, characterized in that: A displacement mechanism (17) is fixedly installed inside the fixed groove (5), and one end of the displacement mechanism (17) is in contact with the positioning hole (16).

Citation Information

Patent Citations

  • A device for chain grinding and processing

    CN218837252U