Friction type torsion protector
By designing an adjustable torque spring preload mechanism in the friction torque protector, the problem that traditional torque protectors cannot be adjusted dynamically is solved, and the optimal protection effect of the equipment under different working conditions is achieved.
Patent Information
- Application Number
- CN202421454055.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-25
AI Technical Summary
Traditional friction torque protectors cannot be dynamically adjusted according to the actual workload, resulting in the inability to provide optimal protection in the event of large or unstable load changes, which may lead to system damage.
A friction torque protector is designed, and the active rotation shaft and the driven rotation shaft are installed through the first and second mounting holes. The position of the bolt adjustment ring is adjusted, and the torque spring is driven to compress or rebound, and the preload force of the torque spring is adjusted according to actual working needs, thereby adjusting the starting torque of the protector.
This design enables the equipment to adapt to different working conditions, prevent excessive displacement of the rotating shaft and damage to the equipment caused by overload, and improves the practical performance of the torque protector.
Smart Images
Figure CN222687162U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of torque protectors, in particular to a friction type torque protector. Background Art
[0002] As we all know, a torque protector is a device used to protect mechanical devices and tools. It can limit the transmission of torque to avoid excessive damage to equipment or materials. It is usually used in automotive tools, power tools and other equipment. It can automatically disengage torque when the set torque value is exceeded to protect the safety of tools and users. Torque protectors can usually be divided into two types: friction type and ball type.
[0003] However, traditional friction torque protectors usually have fixed limit values and cannot be dynamically adjusted according to the actual workload. This means that when the load changes greatly or is unstable, the protector may not provide the best protection, causing damage to the system. Therefore, technical improvements are urgently needed. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a friction torque protector is proposed. When the friction torque protector is used, the active rotating shaft and the driven rotating shaft are conveniently installed in the first mounting ring and the second mounting ring respectively through the first mounting hole and the second mounting hole. By rotating the adjusting bolts on both sides, the position of the adjusting ring can be adjusted as required, thereby driving the torque spring to compress or rebound. The preload force of the torque spring can be adjusted according to actual working requirements, thereby adjusting the starting torque of the protector, so that the equipment can adapt to different working conditions.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A friction torque protector comprises a first mounting ring and a second mounting ring, wherein the rear end of the outer wall of the first mounting ring is fixedly connected to a rotating shaft, a through slot is provided in the middle of the outer wall of the rear end of the first mounting ring, the through slot penetrates the first mounting ring and is connected to the rotating shaft, an adjustment ring is slidably connected to the front end of the inner wall of the through slot, a clamping disk is provided at the rear end of the adjustment ring, a plurality of clamping blocks are fixedly connected to the edge of the outer wall of the rear end of the clamping disk, a mounting slot is provided in the middle of the outer wall of the front end of the clamping disk, and a torque spring is fixedly connected to the front end of the outer wall of the mounting slot;
[0007] A connecting shaft is fixedly connected to the edge of the outer wall at the front end of the second mounting ring, a positioning ring is fixedly connected to the middle of the inner wall of the connecting shaft, and a plurality of clamping grooves are provided on the edge of the outer wall of the positioning ring.
[0008] Through the above technical scheme, compared with the existing friction torque protector, when the friction torque protector is used, the limiting ring slides in the limiting groove to ensure that the position of the rotating shaft in the positioning groove is fixed, thereby preventing excessive displacement of the rotating shaft under overload conditions, and further preventing damage to the equipment due to excessive axial force. The movement of the torque spring can easily drive the clamping plate to move, thereby driving multiple clamping blocks to clamp with the clamping grooves, thereby making the rotating shaft and the connecting shaft rotate as a whole, and the practical performance is high.
[0009] Furthermore, the front end of the torque spring is fixedly connected to the rear end of the outer wall of the adjustment ring;
[0010] Through the above technical solution, the front end of the torque spring is fixedly connected to the rear end of the outer wall of the adjustment ring, so as to facilitate the movement of the adjustment ring.
[0011] Furthermore, both sides of the outer wall at the front end of the first mounting ring are threadedly connected with adjusting bolts, and the rear ends of the adjusting bolts penetrate the first mounting ring and the rotating shaft and are rotatably connected to the outer wall at the front end of the adjusting ring;
[0012] Through the above technical solution, the rear end of the adjusting bolt passes through the first mounting ring and the rotating shaft and is rotatably connected to the outer wall of the front end of the adjusting ring, so as to drive the adjusting ring to move.
[0013] Furthermore, a slide groove is provided at the rear end of the inner wall of the through groove, and a sliding ring is fixedly connected to the upper end of the outer wall at the rear end of the clamping plate, and the sliding ring is slidably connected inside the slide groove;
[0014] Through the above technical solution, the sliding ring is slidably connected inside the sliding groove, which facilitates improving the stability of the movement of the clamping plate.
[0015] Furthermore, the clamping blocks are respectively clamped and matched with the clamping slots;
[0016] Through the above technical solution, the clamping blocks are respectively engaged with the clamping grooves, so that the whole body can rotate together.
[0017] Furthermore, a positioning groove is provided in the middle of the outer wall at the front end of the connecting shaft, a limiting groove is provided in the middle of the bottom surface of the positioning groove, the rear end of the rotating shaft is engaged with the positioning groove, the rear end of the inner wall of the rotating shaft is fixedly connected with a limiting ring, and the limiting ring is slidably connected inside the limiting groove;
[0018] Through the above technical solution, the limiting ring is slidably connected inside the limiting groove, which facilitates the limiting ring to be limited.
[0019] Furthermore, a first mounting hole is provided at the middle of the upper end and the lower end of the outer wall of the first mounting ring, and a plurality of second mounting holes are provided at the edge of the outer wall of the second mounting ring;
[0020] With the above technical solution, the driving shaft and the driven shaft can be easily connected through the first mounting hole and the second mounting hole.
[0021] Furthermore, a driving rotating shaft is disposed inside the first mounting ring, and a driven rotating shaft is disposed inside the second mounting ring;
[0022] Through the above technical solution, the coordination between the driving shaft and the driven shaft is improved.
[0023] The utility model has the following beneficial effects:
[0024] 1. The utility model proposes a friction torque protector. Compared with the existing friction torque protector, when the friction torque protector is used, the driving shaft and the driven shaft are conveniently installed in the first mounting ring and the second mounting ring respectively through the first mounting hole and the second mounting hole. By rotating the adjusting bolts on both sides, the position of the adjusting ring can be adjusted as required, thereby driving the torque spring to compress or rebound. The preload force of the torque spring can be adjusted according to actual working requirements, thereby adjusting the starting torque of the protector, so that the equipment can adapt to different working conditions.
[0025] 2. The utility model proposes a friction torque protector. Compared with the existing friction torque protector, when the friction torque protector is used, the limit ring slides in the limit groove to ensure that the position of the rotating shaft in the positioning groove is fixed, thereby preventing excessive displacement of the rotating shaft under overload conditions, thereby preventing equipment damage due to excessive axial force. The torque spring movement can easily drive the clamping plate to move, thereby driving multiple clamping blocks to clamp with the clamping grooves, thereby making the rotating shaft and the connecting shaft rotate as a whole, and the practical performance is high. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is an axonometric diagram of a friction torque protector proposed by the utility model;
[0027] Figure 2 This is a schematic diagram of an explosion of a friction type torque protector proposed by the utility model;
[0028] Figure 3 This is an axial section view of a friction type torque protector proposed by the utility model;
[0029] Figure 4 This is a schematic axial section diagram of a friction type torque protector proposed by the utility model;
[0030] Figure 5 This is a schematic cross-sectional view of a rotating shaft in a friction torque protector proposed by the utility model;
[0031] Figure 6It is a front cross-sectional schematic diagram of a friction type torque protector proposed by the utility model;
[0032] Figure 7 for Figure 4 Enlarged view of point A in the middle.
[0033] Legend:
[0034] 1. First mounting ring; 2. Rotating shaft; 3. Through slot; 4. Adjusting ring; 5. Snap-on plate; 6. Slide slot; 7. Sliding ring; 8. Snap-on block; 9. Mounting slot; 10. Torque spring; 11. Adjusting bolt; 12. Connecting shaft; 13. Second mounting ring; 14. Positioning slot; 15. Limiting slot; 16. Limiting ring; 17. Positioning ring; 18. Snap-on slot; 19. First mounting hole; 20. Second mounting hole; 21. Active rotating shaft; 22. Driven rotating shaft. DETAILED DESCRIPTION
[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0036] Reference Figure 1-7 , an embodiment provided by the utility model:
[0037] A friction torque protector, comprising a first mounting ring 1 and a second mounting ring 13, wherein the rear end of the outer wall of the first mounting ring 1 is fixedly connected to a rotating shaft 2, a through groove 3 is provided in the middle of the outer wall of the rear end of the first mounting ring 1, the through groove 3 penetrates the first mounting ring 1 and is connected to the rotating shaft 2, an adjusting ring 4 is slidably connected to the front end of the inner wall of the through groove 3, a clamping plate 5 is provided at the rear end of the adjusting ring 4, a plurality of clamping blocks 8 are fixedly connected to the edge of the outer wall of the rear end of the clamping plate 5, a mounting groove 9 is provided in the middle of the outer wall of the front end of the clamping plate 5, and a torque spring 10 is fixedly connected to the front end of the outer wall of the mounting groove 9;
[0038] The connecting shaft 12 is fixedly connected to the edge of the front outer wall of the second mounting ring 13 , and a positioning ring 17 is fixedly connected to the middle of the inner wall of the connecting shaft 12 . A plurality of clamping grooves 18 are formed on the edge of the outer wall of the positioning ring 17 .
[0039] Compared with the existing friction torque protector, when the friction torque protector is used, the limiting ring 16 slides in the limiting groove 15 to ensure that the position of the rotating shaft 2 in the positioning groove 14 is fixed, thereby preventing the rotating shaft 2 from excessive displacement under overload conditions, and further preventing equipment damage due to excessive axial force. The movement of the torque spring 10 facilitates the movement of the clamping plate 5, thereby driving multiple clamping blocks 8 to clamp with the clamping grooves 18, thereby making the rotating shaft 2 and the connecting shaft 12 rotate as a whole, and has high practical performance.
[0040] The front end of the torque spring 10 is fixedly connected to the rear end of the outer wall of the adjusting ring 4, and the front end of the torque spring 10 is fixedly connected to the rear end of the outer wall of the adjusting ring 4, so as to facilitate the movement of the adjusting ring 4. Both sides of the outer wall of the front end of the first mounting ring 1 are threadedly connected with adjusting bolts 11, and the rear ends of the adjusting bolts 11 penetrate the first mounting ring 1 and the rotating shaft 2 and are rotatably connected to the outer wall of the front end of the adjusting ring 4, and the rear ends of the adjusting bolts 11 penetrate the first mounting ring 1 and the rotating shaft 2 and are rotatably connected to the outer wall of the front end of the adjusting ring 4, so as to facilitate the movement of the adjusting ring 4. A sliding groove 6 is provided at the rear end of the inner wall of the through groove 3, and a sliding ring 7 is fixedly connected to the upper end of the outer wall of the rear end of the clamping plate 5, and the sliding ring 7 is slidably connected inside the sliding groove 6, and is slidably connected inside the sliding groove 6 by the sliding ring 7, so as to improve the stability of the movement of the clamping plate 5, and the clamping blocks 8 are respectively engaged with the clamping grooves 18, and the clamping blocks 8 are respectively engaged with the clamping grooves 18 The connecting shaft 12 is provided with a positioning groove 14 in the middle of the front end outer wall, and a limiting groove 15 is provided in the middle of the bottom surface of the positioning groove 14. The rear end of the rotating shaft 2 is engaged with the positioning groove 14, and the rear end of the inner wall of the rotating shaft 2 is fixedly connected with a limiting ring 16, and the limiting ring 16 is slidably connected inside the limiting groove 15. The limiting ring 16 is slidably connected inside the limiting groove 15 by the limiting ring 16, which is convenient for limiting the limiting ring 16. The middle of the upper and lower ends of the outer wall of the first mounting ring 1 are provided with first mounting holes 19, and the edge of the outer wall of the second mounting ring 13 is provided with a plurality of second mounting holes 20. The first mounting holes 19 and the second mounting holes 20 are convenient for installing and connecting the driving rotating shaft 21 and the driven rotating shaft 22. The first mounting ring 1 is provided with a driving rotating shaft 21, and the second mounting ring 13 is provided with a driven rotating shaft 22. The driving rotating shaft 21 and the driven rotating shaft 22 are convenient for improving the matching.
[0041] Working principle: When in use, the active rotating shaft 21 and the driven rotating shaft 22 are conveniently installed in the first mounting ring 1 and the second mounting ring 13 respectively through the first mounting hole 19 and the second mounting hole 20. By rotating the adjusting bolts 11 on both sides, the position of the adjusting ring can be adjusted as required, thereby driving the torque spring 10 to compress or rebound. The preload force of the torque spring 10 can be adjusted according to actual working requirements, thereby adjusting the starting torque of the protector, so that the equipment can adapt to different working conditions. When an overload occurs, the torque spring 10 exceeds the set torque threshold and is compressed at this time, thereby causing the clamping plate 5 to disengage from the positioning ring 17. Subsequently, the limiting ring 16 slides in the limiting groove 15 to ensure that the position of the rotating shaft 2 in the positioning groove 14 is fixed, preventing the rotating shaft 2 from being excessively displaced under overload conditions, thereby preventing damage to the equipment due to excessive axial force. When the equipment is operating normally, the spring restores the torque deformation to cause the clamping plate 5 to be clamped with the positioning ring 17, thereby driving the driven rotating shaft 22 to continue rotating.
[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A friction torque protector, comprising a first mounting ring (1) and a second mounting ring (13), characterized in that: The rear end of the outer wall of the first mounting ring (1) is fixedly connected to a rotating shaft (2); a through groove (3) is provided in the middle of the outer wall of the rear end of the first mounting ring (1); the through groove (3) penetrates the first mounting ring (1) and is through-connected to the rotating shaft (2); an adjusting ring (4) is slidably connected to the front end of the inner wall of the through groove (3); a clamping plate (5) is provided at the rear end of the adjusting ring (4); a plurality of clamping blocks (8) are fixedly connected to the edge of the outer wall of the rear end of the clamping plate (5); a mounting groove (9) is provided in the middle of the outer wall of the front end of the clamping plate (5); a torque spring (10) is fixedly connected to the front end of the outer wall of the mounting groove (9); A connecting shaft (12) is fixedly connected to the edge of the front end outer wall of the second mounting ring (13), a positioning ring (17) is fixedly connected to the middle of the inner wall of the connecting shaft (12), and a plurality of clamping grooves (18) are provided on the edge of the outer wall of the positioning ring (17).
2. A friction torque protector according to claim 1, characterized in that: The front end of the torque spring (10) is fixedly connected to the rear end of the outer wall of the adjustment ring (4).
3. A friction torque protector according to claim 1, characterized in that: Adjustment bolts (11) are threadedly connected to both sides of the front end outer wall of the first mounting ring (1), and the rear ends of the adjustment bolts (11) penetrate the first mounting ring (1) and the rotating shaft (2) and are rotationally connected to the front end outer wall of the adjustment ring (4).
4. A friction torque protector according to claim 1, characterized in that: A sliding groove (6) is provided at the rear end of the inner wall of the through groove (3), and a sliding ring (7) is fixedly connected to the upper end of the outer wall of the rear end of the clamping plate (5), and the sliding ring (7) is slidably connected inside the sliding groove (6).
5. A friction torque protector according to claim 1, characterized in that: The clamping blocks (8) are respectively clamped and matched with the clamping grooves (18).
6. A friction torque protector according to claim 5, characterized in that: A positioning groove (14) is provided in the middle of the outer wall of the front end of the connecting shaft (12), a limiting groove (15) is provided in the middle of the bottom surface of the positioning groove (14), the rear end of the rotating shaft (2) is snap-fitted with the positioning groove (14), the rear end of the inner wall of the rotating shaft (2) is fixedly connected with a limiting ring (16), and the limiting ring (16) is slidably connected inside the limiting groove (15).
7. A friction torque protector according to claim 1, characterized in that: The first mounting ring (1) has first mounting holes (19) in the middle of the upper and lower ends of the outer wall, and the second mounting ring (13) has a plurality of second mounting holes (20) at the edge of the outer wall.
8. A friction torque protector according to claim 1, characterized in that: A driving rotating shaft (21) is arranged inside the first mounting ring (1), and a driven rotating shaft (22) is arranged inside the second mounting ring (13).