Mechanical clutch protector for torque overload of stirring paddle

By incorporating a stabilizing protrusion and a limit socket on the flywheel, the high replacement cost and poor stability caused by welding and fixing the starting gear ring are resolved. This design enables detachable fixing and multi-point limiting of the starting gear ring, improving the flexibility and stability of the mechanical clutch protector.

CN224135039UActive Publication Date: 2026-04-17NANTONG HUISHUN CHEM IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG HUISHUN CHEM IND CO LTD
Filing Date
2025-06-06
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Most existing mechanical clutch protectors have their starting gear rings welded and fixed, making them inconvenient to replace independently after damage, resulting in high replacement costs. Furthermore, the pressure plate relies on a single limit structure, leading to poor stability.

Method used

A stabilizing protrusion is installed at one end of the flywheel. The starting gear ring is fitted onto the outside of the stabilizing protrusion and fixed by the fourth bolt. The limit socket is inserted into the limit slot and connected by bolts to achieve detachable fixing and reinforced limit of the starting gear ring, thereby improving stability.

Benefits of technology

It enables convenient replacement of the starting gear ring, reduces replacement costs, and improves the stability of the pressure plate through a multi-point limiting structure, preventing slippage and deviation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stirring paddle torque overload mechanical clutch protector, which relates to the technical field of mechanical clutch protectors, and comprises a flywheel, one end of the flywheel is provided with a stable protruding seat, the outside of the stable protruding seat is provided with a starting gear ring, and the starting gear ring is connected with the flywheel. A fixing assembly is arranged at one end of the stabilizing protruding seat, a mounting sleeve is arranged at the other end of the flywheel, a cover plate is arranged at one end of the mounting sleeve, the other end of the mounting sleeve is fixed to the flywheel by arranging a third bolt, a first bolt is arranged on one side of the cover plate, and one end of the first bolt penetrates through the cover plate to be fixed to the mounting sleeve in a threaded mode. According to the scheme, the problems that most starting gear rings of an existing mechanical clutch protector are fixed in a welded mode and are inconvenient to replace independently after being damaged, the whole flywheel needs to be replaced, the replacement cost is high, and a pressing disc is limited through a single limiting structure and is prone to sliding, and the stability is poor are solved.
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Description

Technical Field

[0001] This utility model relates to the technical field of mechanical clutch protectors, specifically a mechanical clutch protector for agitator torque overload. Background Technology

[0002] The mechanical clutch protector for agitator torque overload is an overload protection device specifically designed for agitator equipment. It uses a mechanical structure to cut off power transmission when the torque exceeds the limit, thus protecting the equipment safety.

[0003] For example, the Chinese authorized patent CN212225965U (A Mechanical Clutch) includes a housing and a power input device. A planetary transmission mechanism is installed inside the housing. The top of the housing is equipped with a cam mechanism for switching the transmission chain of the planetary transmission mechanism on and off, and a locking mechanism for manually locking the cam mechanism. The output end of the power input device is connected to the planetary transmission mechanism. This invention uses the cam mechanism and locking mechanism to achieve the function of manually engaging and disengaging the transmission chain, a function completely absent in existing clutches. It also boasts advantages such as a compact overall structure, light weight, high torque transmission, and reliable transmission safety. The planetary transmission mechanism reduces the size and weight of the equipment, lowers maintenance difficulty, and improves the reliability of the drive system. Furthermore, this invention retains mechanical gripping capability after power failure, and the gripping capability can be unlocked and locked manually.

[0004] However, most existing mechanical clutch protectors have their starting gear rings welded and fixed, making them inconvenient to replace independently after damage. They require replacing the entire flywheel, resulting in high replacement costs. Furthermore, the pressure plate relies on a single limiting structure for limiting, which is prone to slippage and leads to poor stability. Therefore, they do not meet the current requirements. In response, we proposed a mechanical clutch protector for agitator torque overload. Utility Model Content

[0005] The purpose of this utility model is to provide a mechanical clutch protector for overload torque of agitator impeller, in order to solve the problems mentioned in the background art. The starting gear ring of most existing mechanical clutch protectors is welded and fixed, which is inconvenient to replace independently after damage. It is necessary to replace the entire flywheel, resulting in high replacement costs. In addition, the pressure plate relies on a single limiting structure for limiting, which is prone to slippage and leads to poor stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mechanical clutch protector for stirring paddle torque overload, comprising: a flywheel, a stabilizing protrusion at one end of the flywheel, a starting gear ring on the outside of the stabilizing protrusion, a fixing component at one end of the stabilizing protrusion, a mounting sleeve at the other end of the flywheel, a cover plate at one end of the mounting sleeve, the other end of the mounting sleeve being fixed to the flywheel by a third bolt, a first bolt on one side of the cover plate, one end of the first bolt passing through the cover plate and threadedly fixed to the mounting sleeve, and a second bolt on one side of the first bolt.

[0007] Preferably, the mounting sleeve has a first friction plate inside, a first pressure plate on one side of the first friction plate, and a second pressure plate and a second friction plate inside the mounting sleeve.

[0008] Preferably, a driven disc is provided at the center of both the first friction plate and the second friction plate, and a torque damper is provided on one side of the driven disc.

[0009] Preferably, the inner wall of the mounting sleeve is provided with a limiting slot, and the outer walls of the first pressure plate and the second pressure plate are both provided with limiting sockets, and the limiting sockets are inserted into the limiting slots.

[0010] Preferably, the upper surface of the limiting socket is provided with a through hole, and the inner bottom surface of the limiting slot has a hole for connection with the second bolt, and one end of the second bolt passes through the cover plate and the through hole in sequence and then connects with the hole on the inner bottom surface of the limiting slot.

[0011] Preferably, the fixing component includes a pressure plate, one end of which is provided with a connecting plate, a mounting groove is provided between the pressure plate and the connecting plate, and a through hole is provided on one side surface of the pressure plate.

[0012] Preferably, one side surface of the starting gear ring is provided with a bolt hole, and the bolt hole penetrates the starting gear ring. The fixing component also includes a fourth bolt, and one end of the fourth bolt passes through the flywheel, the bolt hole and the through hole in sequence before being threaded to a nut.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model sets a stabilizing protrusion at one end of the flywheel, and the starting gear ring is sleeved on the outside of the stabilizing protrusion. One end of the fourth bolt passes through the flywheel, the bolt hole and the through hole in sequence and is then threaded to connect the nut, so as to fix the fixing component and the stabilizing protrusion. This has a squeezing effect on the starting gear ring to prevent it from falling off. In addition, the starting gear ring is detachable, which makes it easy to replace independently, improves flexibility and reduces replacement cost. This solves the problem that most of the starting gear rings of existing mechanical clutch protectors are fixed by welding. After damage, it is inconvenient to replace them independently and requires the replacement of the entire flywheel, resulting in high replacement cost.

[0015] (2) By setting through holes on the surface of the limit socket, and when the first pressure plate and the second pressure plate are installed, the limit socket is inserted into the limit slot to achieve the effect of limiting and preventing rotation, thereby improving the stability of the first pressure plate and the second pressure plate. One end of the second bolt passes through the cover plate and the through hole in sequence and connects with the hole on the bottom surface of the limit slot to reinforce the first pressure plate and the second pressure plate, prevent slippage and offset, further improve stability, and solve the problem that the pressure plate relies on a single limit structure for limiting, which is prone to slippage and leads to poor stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram showing the disassembled structure of the flywheel, fixed assembly, and starting gear ring of this utility model.

[0019] Figure 4 This is a schematic diagram of the fixing component structure of this utility model;

[0020] In the diagram: 1. Flywheel; 2. Starting gear ring; 3. Mounting sleeve; 4. Cover plate; 5. First bolt; 6. Second bolt; 7. Third bolt; 8. Fixing assembly; 9. First pressure plate; 10. First friction plate; 11. Second friction plate; 12. Second pressure plate; 13. Limit slot; 14. Limit socket; 15. Through hole; 16. Driven plate; 17. Torque damper; 18. Fourth bolt; 19. Stabilizing protrusion; 20. Bolt hole; 21. Pressure plate; 22. Connecting plate; 23. Mounting groove; 24. Through hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4 This utility model provides an embodiment of a mechanical clutch protector for agitator torque overload, comprising: a flywheel 1, a stabilizing protrusion 19 at one end of the flywheel 1, a starting gear ring 2 on the outside of the stabilizing protrusion 19, a fixing component 8 at one end of the stabilizing protrusion 19, a mounting sleeve 3 at the other end of the flywheel 1, a cover plate 4 at one end of the mounting sleeve 3, and the other end of the mounting sleeve 3 being fixed to the flywheel 1 by a third bolt 7; a first bolt 5 on one side of the cover plate 4, with one end of the first bolt 5 passing through the cover plate 4 and threadedly fixed to the mounting sleeve 3; a second bolt 6 on one side of the first bolt 5; a first friction plate 10 inside the mounting sleeve 3; and a first friction plate 10 on one side of the first friction plate 10. The mounting sleeve 3 is equipped with a first pressure plate 9 and a second pressure plate 12 and a second friction plate 11. A driven plate 16 is provided at the center of both the first friction plate 10 and the second friction plate 11. A torque damper 17 is provided on one side of the driven plate 16. A limit slot 13 is provided on the inner wall of the mounting sleeve 3. A limit socket 14 is provided on the outer wall of both the first pressure plate 9 and the second pressure plate 12. The limit socket 14 is inserted into the limit slot 13. The first friction plate 10, the first pressure plate 9, the second pressure plate 12 and the second friction plate 11 are installed inside the mounting sleeve 3. The limit socket 14 is inserted into the limit slot 13 to limit and prevent rotation, thereby improving the stability of the first pressure plate 9 and the second pressure plate 12.

[0023] The upper surface of the limiting socket 14 is provided with a through hole 15, and the inner bottom surface of the limiting slot 13 has a hole for connecting with the second bolt 6. One end of the second bolt 6 passes through the cover plate 4 and the through hole 15 in sequence and connects with the hole on the inner bottom surface of the limiting slot 13. After the cover plate 4 is closed, one end of the first bolt 5 passes through the cover plate 4 and is threaded to the mounting sleeve 3 to fix the cover plate 4 and the mounting sleeve 3. The second bolt 6 passes through the cover plate 4 and the through hole 15 in sequence and connects with the hole on the inner bottom surface of the limiting slot 13, which has a reinforcing effect on the first pressure plate 9 and the second pressure plate 12, prevents sliding and displacement, and further improves stability.

[0024] The fixing component 8 includes a pressure plate 21, with a connecting plate 22 at one end. A mounting groove 23 is provided between the pressure plate 21 and the connecting plate 22. A through hole 24 is provided on one side surface of the pressure plate 21, and a bolt hole 20 is provided on one side surface of the starting gear ring 2, with the bolt hole 20 penetrating the starting gear ring 2. The fixing component 8 also includes a fourth bolt 18, with one end of the fourth bolt 18 passing through the flywheel 1, the bolt hole 20, and the through hole 24 in sequence before being threaded onto a nut. This allows the starting gear ring 2 to be fitted onto the outside of the stabilizing protrusion 19. The fixing component 8 is fixed to the stabilizing protrusion 19, which exerts a squeezing effect on the starting gear ring 2 to prevent it from falling off. Furthermore, the detachable starting gear ring 2 facilitates independent replacement, improving flexibility and reducing replacement costs.

[0025] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mechanical clutch protector for agitation paddle torque overload, comprising a flywheel (1), characterized in that: One end of the flywheel (1) is provided with a stabilizing protrusion (19), and a starting gear ring (2) is provided on the outside of the stabilizing protrusion (19). One end of the stabilizing protrusion (19) is provided with a fixing component (8). The other end of the flywheel (1) is provided with a mounting sleeve (3). One end of the mounting sleeve (3) is provided with a cover plate (4). The other end of the mounting sleeve (3) is fixed to the flywheel (1) by a third bolt (7). One side of the cover plate (4) is provided with a first bolt (5), and one end of the first bolt (5) passes through the cover plate (4) and is threaded to the mounting sleeve (3). One side of the first bolt (5) is provided with a second bolt (6).

2. The mechanical torque overload clutch protector for an agitator paddle as set forth in claim 1, wherein: The mounting sleeve (3) is provided with a first friction plate (10) inside, and a first pressure plate (9) is provided on one side of the first friction plate (10). The mounting sleeve (3) is also provided with a second pressure plate (12) and a second friction plate (11).

3. The mechanical torque overload clutch protector for an agitator paddle as set forth in claim 2, wherein: A driven disc (16) is provided at the center of both the first friction plate (10) and the second friction plate (11), and a torque damper (17) is provided on one side of the driven disc (16).

4. The mechanical torque overload clutch protector for an agitator paddle as set forth in claim 2, wherein: The inner wall of the mounting sleeve (3) is provided with a limiting slot (13), and the outer walls of the first pressure plate (9) and the second pressure plate (12) are both provided with limiting sockets (14), and the limiting sockets (14) are inserted into the limiting slots (13).

5. The mechanical torque overload clutch protector for an agitator paddle as set forth in claim 4, wherein: The upper surface of the limiting socket (14) is provided with a through hole (15), and the inner bottom surface of the limiting slot (13) has a hole for connecting with the second bolt (6). One end of the second bolt (6) passes through the cover plate (4) and the through hole (15) in sequence and then connects with the hole on the inner bottom surface of the limiting slot (13).

6. The mechanical clutch protector for impeller torque overload according to claim 1, characterized in that: The fixing component (8) includes a pressure plate (21), a connecting plate (22) is provided at one end of the pressure plate (21), an installation groove (23) is provided between the pressure plate (21) and the connecting plate (22), and a through hole (24) is provided on one side surface of the pressure plate (21).

7. The mechanical torque overload clutch protector for an agitator paddle as set forth in claim 1, wherein: The starting gear ring (2) has a bolt hole (20) on one side surface, and the bolt hole (20) passes through the starting gear ring (2). The fixing component (8) also includes a fourth bolt (18), and one end of the fourth bolt (18) passes through the flywheel (1), the bolt hole (20) and the through hole (24) in sequence before being threaded to a nut.

Citation Information

Patent Citations

  • Mechanical clutch

    CN212225965U