Gear anti-rubbing structure
By setting a combination of rear and front wave springs on the gear, the problem of tooth breakage and damage under stress is solved, the gear is protected against tooth breakage, and the service life of the gear and the stability of the transmission mechanism are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU LONGDE TECH CO LTD
- Filing Date
- 2025-10-20
- Publication Date
- 2026-07-14
AI Technical Summary
Existing gears are prone to tooth breakage, tooth decay, or tooth twisting when subjected to high forces, especially small module gears and powder metallurgy gears, which can affect the normal operation of the transmission mechanism and may lead to the scrapping of equipment.
The combination structure of rear wave spring and front wave spring is adopted. They are riveted together by a riveting device to form a gear anti-tooth structure. The rear pressure plate and the front pressure plate provide pressure support within a set range. When the external force is an acceleration force, it causes the gear to slip and run, thus protecting the gear from damage.
It effectively prevents gears from chipping and being damaged under external forces, thus improving the service life of gears and ensuring the stable operation of the transmission mechanism.
Smart Images
Figure CN224497312U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of gear technology, and in particular to gear anti-tooth-smashing structures. Background Technology
[0002] Gears are toothed, wheel-shaped mechanical parts that usually mesh in pairs. When one gear rotates, the other is driven, and they can continuously mesh to transmit motion and power. Gears are one of the most widely used transmission components. Almost all modern machinery uses gear transmission to some extent. From clocks to large cranes, trains, automobiles, airplanes, ships, tractors, and machine tools in factories, gears play a role everywhere. Gears are also widely used in daily life. They are used in many household appliances such as mechanical watches, multi-speed bicycles, noodle makers, egg beaters, and juicers.
[0003] In the meshing process of existing gear transmissions, phenomena such as broken teeth, tooth decay, and tooth twisting occur, mainly in small module gears, especially powder metallurgy gears and plastic gears. Because the existing gear structure lacks corresponding protective structures on gears subjected to greater forces, when an external force is applied to a gear that exceeds the torsional breaking force of a single gear tooth, that single gear tooth will be twisted or broken, thus affecting the operation of the entire transmission mechanism and potentially rendering very expensive equipment unusable. Utility Model Content
[0004] In view of the shortcomings of the prior art, this application provides a gear anti-tooth-breakage structure, which overcomes the shortcomings of the prior art and aims to solve the problems in the prior art.
[0005] To achieve the above objectives, this application provides the following technical solution: a gear anti-tooth-damaging structure, including a connecting shaft, a connecting rod fixedly mounted on the outer side of the connecting shaft, two limiting strips symmetrically fixedly mounted on the outer edge of the connecting rod, a rear pressure plate slidably connected to the outer edge of the connecting rod, a groove formed on the inner wall of the rear pressure plate, two limiting grooves symmetrically formed on the inner wall of the groove, a connecting post fixedly mounted on the end of the connecting rod away from the connecting shaft, a gear body inserted into the outer edge of the connecting post, a slot formed on the inner wall of the gear body, a rear wave spring provided on the inner wall of the slot, a stud threadedly connected to the inner wall of the connecting post, a rotating sleeve fixedly mounted on the outer side of the stud, a protective plate fixedly mounted on the outer edge of the rotating sleeve, a front wave spring provided on the side of the gear body away from the rear wave spring, and a front pressure plate provided on the side of the front wave spring away from the gear body.
[0006] As a preferred technical solution of this application, the rear wave spring is sleeved on the outer side of the connecting column, and the inner wall shape of the slot and the shape of the rear wave spring are both C-shaped.
[0007] By adopting the above technical solution, the rear wave spring can be stably engaged in the inner wall of the slot. After being riveted together by the riveting equipment, when the external force is within the set range during the operation of the gear body, the rear pressure plate and the front pressure plate exert pressure to ensure that the gear body does not slip with the connecting shaft during operation. When the external force is an acceleration force, the rear wave spring and the front wave spring lift the rear pressure plate and the front pressure plate, causing the gear body to slip and run, protecting the gear body from tooth breakage and damage.
[0008] As a preferred technical solution of this application, the inner wall shape of the slot is adapted to the outer shape of the connecting rod, and the two limiting strips are slidably connected to the inner wall positions of the two limiting grooves.
[0009] By adopting the above technical solution, the rear pressure plate can be limited, thereby ensuring that the rear pressure plate will not shake or shift when it is positioned on the outside of the connecting rod.
[0010] As a preferred technical solution of this application, the connecting post has a threaded hole on the side away from the connecting rod, and the stud is threaded to the inner wall of the threaded hole.
[0011] By adopting the above technical solution, the rotating sleeve and the front wave spring can be stably set on the side of the front pressure plate away from the front wave spring, ensuring that they will not shake randomly.
[0012] As a preferred technical solution of this application, slots are provided on both sides of the gear body, and the front wave spring and the rear wave spring are respectively disposed on the inner wall of the two slots.
[0013] By adopting the above technical solution, the gear body can be made to slip and rotate simultaneously from both sides, protecting the gear body from tooth breakage and damage.
[0014] As a preferred technical solution of this application, the side of the protective sheet away from the rotating sleeve is fitted with the front wave spring sheet.
[0015] By adopting the above technical solution, the protective plate can limit the front pressure plate, ensuring that the gear body will not arbitrarily separate from the front pressure plate and the front wave spring when subjected to force.
[0016] The beneficial effects of this application are:
[0017] 1. Through the coordinated use of the rear pressure plate, the front wave spring, the gear body, the rear wave spring, and the front pressure plate, the gear anti-tooth-breakage structure, after all components are assembled and riveted together by a riveting device, ensures that when the external force is within a set range during gear body operation, the rear and front pressure plates exert pressure to prevent the gear body from slipping on the connecting shaft. When the external force is an acceleration force, the rear and front wave springs push up the rear and front pressure plates, causing the gear body to slip and operate, protecting the gear body from tooth breakage and damage, thereby improving the service life of the structure.
[0018] 2. The use of rotating sleeve, stud and protective plate can limit the front pressure plate and front wave spring after riveting, ensuring that the front pressure plate and front wave spring will not arbitrarily separate from the gear body when subjected to force. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall riveting and forming structure of this application;
[0020] Figure 2 This is a schematic diagram of the explosive unfolding structure of this application;
[0021] Figure 3 This is a schematic diagram of the stud structure of this application.
[0022] In the diagram: 1. Connecting shaft; 2. Connecting rod; 3. Limiting strip; 4. Rear pressure plate; 5. Slot; 6. Limiting slot; 7. Rear wave spring; 8. Gear body; 9. Groove; 10. Connecting column; 11. Rotating sleeve; 12. Stud; 13. Protective plate; 14. Front wave spring; 15. Front pressure plate. Detailed Implementation
[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0024] Reference Figure 1-3The gear anti-tooth-damaging structure includes a connecting shaft 1, a connecting rod 2 fixedly mounted on the outer side of the connecting shaft 1, two limiting strips 3 symmetrically fixedly mounted on the outer edge of the connecting rod 2, a rear pressure plate 4 slidably connected to the outer edge of the connecting rod 2, a groove 5 opened on the inner wall of the rear pressure plate 4, two limiting grooves 6 symmetrically opened on the inner wall of the groove 5, a connecting post 10 fixedly mounted on the end of the connecting rod 2 away from the connecting shaft 1, a gear body 8 inserted into the outer edge of the connecting post 10, a slot 9 opened on the inner wall of the gear body 8, a rear wave spring 7 provided on the inner wall of the slot 9, a stud 12 threadedly connected to the inner wall of the connecting post 10, a rotating sleeve 11 fixedly mounted on the outer side of the stud 12, a protective plate 13 fixedly mounted on the outer edge of the rotating sleeve 11, a front wave spring 14 provided on the side of the gear body 8 away from the rear wave spring 7, and a front pressure plate 15 provided on the side of the front wave spring 14 away from the gear body 8.
[0025] Reference Figure 2 The rear wave spring 7 is sleeved on the outer side of the connecting post 10. The inner wall shape of the slot 9 and the rear wave spring 7 are both C-shaped. The C-shaped shape of the inner wall of the slot 9 and the rear wave spring 7 allows the rear wave spring 7 to be stably engaged in the inner wall position of the slot 9. After being riveted together by the riveting equipment, when the external force is within the set range during the operation of the gear body 8, the rear pressure plate 4 and the front pressure plate 15 exert pressure to ensure that the gear body 8 does not slip with the connecting shaft 1 during operation. When the external force is an acceleration force, the rear wave spring 7 and the front wave spring 14 push up the rear pressure plate 4 and the front pressure plate 15, causing the gear body 8 to slip and run, protecting the gear body 8 from tooth breakage and damage.
[0026] Reference Figure 2 The inner wall shape of the slot 5 is adapted to the outer shape of the connecting rod 2, and the two limiting strips 3 are slidably connected to the inner wall of the two limiting grooves 6. By the two limiting strips 3 being slidably connected to the inner wall of the two limiting grooves 6, the rear pressure plate 4 can be limited, thereby ensuring that the rear pressure plate 4 will not shake or shift arbitrarily when it is set on the outer side of the connecting rod 2.
[0027] Reference Figure 3 The connecting post 10 has a threaded hole on the side away from the connecting rod 2. The stud 12 is threaded to the inner wall of the threaded hole. By threading the stud 12 to the inner wall of the threaded hole, the rotating sleeve 11 and the front wave spring 14 can be stably set on the side of the front pressure plate 15 away from the front wave spring 14, ensuring that they will not shake randomly.
[0028] Reference Figure 2The gear body 8 has slots 9 on both sides. The front wave spring 14 and the rear wave spring 7 are respectively set on the inner wall of the two slots 9. By setting the front wave spring 14 and the rear wave spring 7 on the inner wall of the two slots 9, the gear body 8 can be simultaneously induced to slip and rotate from both sides, protecting the gear body 8 from tooth breakage and damage.
[0029] Reference Figure 3 The protective plate 13 is attached to the front pressure plate 15 on the side away from the rotating sleeve 11. By attaching the protective plate 13 to the front pressure plate 15 on the side away from the rotating sleeve 11, the protective plate 13 can limit the front pressure plate 15 and ensure that the gear body 8 will not arbitrarily separate from the front wave spring 14 and the front pressure plate 15 when subjected to force.
[0030] Working principle: When using this device, firstly, slide the rear pressure plate 4 to the outer position of the connecting rod 2, thereby sliding the limiting groove 6 to the outer position of the limiting strip 3. Then, the rear wave spring 7 and the front wave spring 14 can be respectively snapped onto the two sides of the groove 9. Then, the front pressure plate 15 is installed on the other side of the front wave spring 14. Then, a riveting device can be used to rivet them together. Then, the rotating sleeve 11 can be taken and the stud 12 rotated to the inner wall of the threaded hole until the side of the protective plate 13 away from the rotating sleeve 11 is in contact with the front pressure plate 15. The protective plate 13 can limit the front pressure plate 15, ensuring that the front wave spring 14 and the front pressure plate 15 will not arbitrarily separate from the gear body 8 when subjected to force. When the external force is within the set range when the gear body 8 is running, the rear pressure plate 4 and the front pressure plate 15 exert pressure to ensure that the gear body 8 will not slip with the connecting shaft 1 when running. When the external force is an acceleration force, the rear wave spring 7 and the front wave spring 14 push up the rear pressure plate 4 and the front pressure plate 15, causing the gear body 8 to slip and run, protecting the gear body 8 from tooth breakage and damage.
[0031] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A gear anti-tooth-smashing structure, including a connecting shaft (1), characterized in that, A connecting rod (2) is fixedly mounted on the outer side of the connecting shaft (1). Two limiting strips (3) are symmetrically fixedly mounted on the outer edge of the connecting rod (2). A rear pressure plate (4) is slidably connected to the outer edge of the connecting rod (2). A slot (5) is provided on the inner wall of the rear pressure plate (4). Two limiting grooves (6) are symmetrically provided on the inner wall of the slot (5). A connecting post (10) is fixedly mounted on the end of the connecting rod (2) away from the connecting shaft (1). A gear body (8) is inserted into the outer edge of the connecting post (10). The inner wall of the body (8) is provided with a slot (9), and the inner wall of the slot (9) is provided with a rear wave spring (7). The inner wall of the connecting column (10) is threaded with a stud (12), and a rotating sleeve (11) is fixedly mounted on the outer side of the stud (12). A protective plate (13) is fixedly mounted on the outer edge of the rotating sleeve (11). A front wave spring (14) is provided on the side of the gear body (8) away from the rear wave spring (7), and a front pressure plate (15) is provided on the side of the front wave spring (14) away from the gear body (8).
2. The gear anti-tooth-smashing structure according to claim 1, characterized in that, The rear wave spring (7) is sleeved on the outer side of the connecting post (10), and the inner wall shape of the slot (9) and the rear wave spring (7) are both C-shaped.
3. The gear anti-tooth-smashing structure according to claim 1, characterized in that, The inner wall shape of the slot (5) is adapted to the outer shape of the connecting rod (2), and the two limiting strips (3) are slidably connected to the inner wall position of the two limiting grooves (6).
4. The gear anti-tooth-smashing structure according to claim 1, characterized in that, The connecting post (10) has a threaded hole on the side away from the connecting rod (2), and the stud (12) is threaded to the inner wall of the threaded hole.
5. The gear anti-tooth-smashing structure according to claim 1, characterized in that, The gear body (8) has slots (9) on both sides, and the front wave spring (14) and the rear wave spring (7) are respectively located on the inner wall of the two slots (9).
6. The gear anti-tooth-smashing structure according to claim 1, characterized in that, The protective sheet (13) is attached to the front pressure sheet (15) on the side away from the rotating sleeve (11).