Wear-resistant buffer shock-absorbing high-precision coupling
By introducing elastic gaskets, buffer structures, and rubber rings into the coupling, the vibration and impact problems in the power transmission process are solved, achieving wear resistance and shock absorption effects for the equipment, and improving the service life and transmission accuracy of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI KAIWEN STONE PRECISION MASCH CO LTD
- Filing Date
- 2025-10-13
- Publication Date
- 2026-07-07
AI Technical Summary
Existing couplings lack effective buffer and vibration reduction structures during power transmission, resulting in severe equipment vibration and impact, increased wear and frequent failures, and shortened equipment lifespan.
The design incorporates components such as elastic gaskets, gasket bodies, buffer structures, and rubber rings. Through elastic deformation and energy absorption, it mitigates vibration and impact, compensates for installation deviations, and improves transmission accuracy and stability.
It effectively reduces equipment wear, extends service life, improves operational stability and transmission accuracy, reduces maintenance costs, and ensures stable equipment operation.
Smart Images
Figure CN224469526U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coupling technology, specifically to a wear-resistant, buffering, shock-absorbing, high-precision coupling. Background Technology
[0002] A coupling is a key component that connects two shafts or a shaft to a rotating part, ensuring that power and motion are smoothly and efficiently transmitted from one shaft to another. In automobiles, this typically involves the connection between the engine and the transmission system, ensuring that power is smoothly transmitted to the wheels, thus propelling the car forward.
[0003] In existing technologies, most couplings typically use rigid connecting parts to directly connect two rotating shafts during power transmission, lacking effective buffering and vibration damping structures. This results in the inability to effectively mitigate vibrations and impacts during power transmission, causing the equipment to be continuously affected by these vibrations and impacts. Internal components are in a state of high-frequency vibration for a long time, which aggravates wear and leads to frequent equipment failures. This necessitates frequent maintenance or replacement of parts, greatly shortening the service life of the equipment and making it inconvenient to use.
[0004] In light of this, we have introduced a wear-resistant, shock-absorbing, high-precision coupling. Utility Model Content
[0005] The purpose of this invention is to provide a wear-resistant, buffering, and shock-absorbing high-precision coupling to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant, buffering, and shock-absorbing high-precision coupling, comprising: a first metal claw disc, a gasket body, and a connecting column;
[0007] A second metal claw disc is disposed on one side of the first metal claw disc, and an elastic gasket is disposed between the first and second metal claw discs. When the coupling is in operation, as power is transmitted from the first metal claw disc to the second metal claw disc, the elastic gasket can effectively buffer and absorb vibrations, impacts, and torque fluctuations generated by the operation of the equipment. At the same time, it can also compensate for minor deviations that may occur between the two metal claw discs during installation, avoiding stress concentration and component wear caused by misalignment, thereby improving the service life and transmission efficiency of the coupling and ensuring more stable and reliable equipment operation.
[0008] The gaskets are evenly spaced on the surface of the elastic gasket, and the gaskets and the elastic gaskets are integrally formed. The surface of the second metal claw disk is provided with a slot for placing the gaskets, and the slot and the second metal claw disk are integrally formed.
[0009] The connecting column has a rubber ring inside and is installed on one side of the first metal claw disk. The connecting column and the first metal claw disk are fixedly connected or can be integrally formed. The surfaces of the first metal claw disk and the second metal claw disk are provided with a buffer structure. The vibration generated by the first metal claw disk and the second metal claw disk is alleviated by the cooperation of the fixed sleeve of the buffer structure, the first buffer ring and the second buffer ring.
[0010] Preferably, the buffer structure includes bolts connecting to the surface of the fixed sleeve. These bolts are made of high-strength alloy steel and undergo a special heat treatment process, possessing good toughness and fatigue resistance, enabling them to maintain a stable fastening effect under long-term vibration. The fixed sleeve is made of a metal material with good mechanical properties, formed through precision casting or forging, and then undergoes multiple machining processes to ensure high dimensional accuracy and surface quality. The fixed sleeve is installed on the surfaces of the first and second metal claw discs. Two sets of fixed sleeves are used; this symmetrical distribution design allows for more uniform force distribution on the buffer structure, effectively avoiding buffer failure caused by uneven force distribution. If the shock absorption effect decreases or a component is damaged, the first buffer ring is connected inside the fixed sleeve, and the second buffer ring is connected inside the fixed sleeve and located to one side of the first buffer ring. Both the first and second buffer rings are made of highly elastic and high-damping rubber material. This rubber material is treated with a special formula and vulcanization process, and has excellent elastic recovery ability and energy absorption characteristics. The first buffer ring can first contact and absorb the energy generated by the vibration of the metal claw disc. When the first buffer ring cannot completely absorb the vibration energy, the second buffer ring will further buffer and absorb the remaining vibration energy. Through this dual buffer design, the shock absorption effect of the buffer structure is greatly improved.
[0011] Preferably, the surface of the fixing sleeve is provided with a threaded groove for screwing in a bolt. The threaded groove and the fixing sleeve are integrally formed. After the bolt passes through the fixing sleeve, a nut is screwed in, and the nut is used to tighten the bolt.
[0012] Preferably, the bolt has an external thread on its surface and the nut has an internal thread. The external thread and the internal thread are matched and screwed together. The nut also has an internal thread that precisely matches the external thread of the bolt. The internal thread is also precisely machined, with its tooth profile perfectly matching the external thread and the pitch being exactly the same. During the manufacturing process, it undergoes multiple precision machining and inspection processes to ensure the dimensional and shape accuracy of the thread.
[0013] Preferably, the surface of the slot is connected to a roller, and the roller contacts the gasket body. The roller and the gasket body are in close contact. When the first metal claw disk and the second metal claw disk move or vibrate relative to each other during power transmission, the gasket body will be displaced and deformed in the slot. At this time, the roller will roll with the movement of the gasket body. The rolling of the roller can more smoothly adapt to the dynamic changes of the gasket body, so that the elastic gasket can play a more flexible role in the buffering and shock absorption process, thereby enhancing the buffering and shock absorption performance of the coupling.
[0014] Preferably, the connecting column has a shaft hole for installing the rotating shaft, and a rubber ring is installed inside the shaft hole. The rubber ring plays multiple important roles in the operation of the entire coupling. The rubber ring has good elasticity and flexibility. When the rotating shaft is installed, it can fit tightly against the surface of the rotating shaft, fill the small gaps that may exist between the rotating shaft and the shaft hole, play an effective sealing role, prevent dust, impurities and other foreign objects from entering the shaft hole, avoid these impurities from causing wear to the rotating shaft and shaft hole, and thus extend the service life of the equipment.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] (1) Through the synergistic effect of the elastic pad, pad body, slot and the fixed sleeve, first buffer ring and second buffer ring in the buffer structure, the vibration and impact generated during power transmission can be effectively mitigated. This can not only protect the connected equipment, reduce the wear and failure caused by vibration, and extend the service life of the equipment, but also improve the stability and reliability of the equipment operation and ensure the smooth progress of the production process. In some precision equipment with high vibration requirements, the buffering and shock absorption performance of this coupling can ensure that the accuracy of the equipment is not affected and improve the processing quality of the product.
[0017] (2) The rubber ring can compensate for the small deviations during shaft installation, ensuring the stability of power transmission and reducing power transmission loss and transmission error caused by installation deviation. The elastic pad and buffer structure reduce the interference of vibration and impact on power transmission, making the power transmission from one shaft to another more stable and accurate, meeting the strict requirements of high precision equipment for power transmission accuracy, and significantly improving the accuracy of its processing or production, and improving product quality.
[0018] (3) The connection method of fixing sleeve, bolt and nut makes the installation and disassembly of the coupling more convenient. During equipment installation, commissioning or maintenance, the staff can quickly operate the coupling, which improves work efficiency. Moreover, since the wear of each component is effectively controlled, the difficulty and workload of maintenance work are reduced accordingly, thus reducing equipment maintenance costs.
[0019] (4) The roller connected to the slot surface contacts the gasket body. During the deformation of the elastic gasket, the roller rolls, reducing the friction between the two and reducing the degree of wear. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a front view structural diagram of the second metal claw disk of this utility model;
[0022] Figure 3 This is a schematic diagram of the structure when the fixing sleeve and the first buffer ring of this utility model are connected;
[0023] Figure 4 This is a schematic diagram of the structure of the fixed sleeve, bolt, nut, first buffer ring and second buffer ring of this utility model when they are connected in three dimensions.
[0024] In the figure: 1. First metal claw disc; 2. Connecting post; 3. Rubber ring; 4. Fixing sleeve; 5. Elastic washer; 6. Second metal claw disc; 7. Slot; 8. Roller; 9. Bolt; 11. First buffer ring; 12. Second buffer ring; 13. External thread part; 14. Nut; 15. Internal thread part; 16. Thread groove; 17. Washer body; 18. Shaft hole. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-4 This utility model provides a technical solution: a wear-resistant, buffer, shock-absorbing, high-precision coupling, comprising: a first metal claw disk 1, a second metal claw disk 6 disposed on one side of the first metal claw disk 1, and an elastic pad 5 disposed between the first metal claw disk 1 and the second metal claw disk 6.
[0027] The gasket body 17 is evenly spaced on the surface of the elastic gasket 5, and the surface of the second metal claw disk 6 is provided with a slot 7 for placing the gasket body 17.
[0028] The connecting column 2 has a rubber ring 3 inside and is installed on one side of the first metal claw disk 1. The surfaces of the first metal claw disk 1 and the second metal claw disk 6 are provided with a buffer structure. The vibration generated by the first metal claw disk 1 and the second metal claw disk 6 is relieved by the cooperation of the fixing sleeve 4, the first buffer ring 11 and the second buffer ring 12 of the buffer structure.
[0029] The buffer structure includes bolts 9 connected to the surface of the fixing sleeve 4. Bolts 9 are made of high-strength alloy steel and undergo a special heat treatment process, possessing good toughness and fatigue resistance, enabling them to maintain a stable fastening effect under long-term vibration. The fixing sleeve 4 is made of a metal material with good mechanical properties, formed through precision casting or forging, and then undergoes multiple machining processes to ensure high standards of dimensional accuracy and surface quality. The fixing sleeves 4 are installed on the surfaces of the first metal claw plate 1 and the second metal claw plate 6. There are two sets of fixing sleeves 4; this symmetrical distribution design allows for more even force distribution on the buffer structure, effectively preventing a decrease in buffering effect or partial loss of buffering performance due to uneven force distribution. If the component is damaged, the first buffer ring 11 is connected inside the fixed sleeve 4, and the second buffer ring 12 is connected inside the fixed sleeve 4 and located on one side of the first buffer ring 11. Both the first buffer ring 11 and the second buffer ring 12 are made of highly elastic and highly damped rubber material. This rubber material is treated with a special formula and vulcanization process, and has excellent elastic recovery ability and energy absorption characteristics. The first buffer ring 11 can first contact and absorb the energy generated by the vibration of the metal claw disk. When the first buffer ring 11 cannot completely absorb the vibration energy, the second buffer ring 12 will further buffer and absorb the remaining vibration energy. Through this double buffer design, the shock absorption effect of the buffer structure is greatly improved.
[0030] The surface of the fixing sleeve 4 is provided with a threaded groove 16 for screwing the bolt 9. The threaded groove 16 and the fixing sleeve 4 are integrally formed. The bolt 9 passes through the fixing sleeve 4 and is screwed with a nut 14. The nut 14 is used to tighten the bolt 9.
[0031] The bolt 9 has an external thread 13 on its surface, and the nut 14 has an internal thread 15 on its interior. The external thread 13 and the internal thread 15 are matched and screwed together. The nut 14 also has an internal thread 15 that is precisely matched with the external thread 13 of the bolt 9. The internal thread 15 is also processed with strict precision. Its tooth profile is perfectly matched with the external thread 13, and the pitch is completely consistent. During the manufacturing process, it undergoes multiple processes of fine processing and inspection to ensure the dimensional and shape accuracy of the thread.
[0032] The surface of the slot 7 is connected to a roller 8, and the roller 8 contacts the gasket body 17. The roller 8 and the gasket body 17 are in close contact. When the first metal claw disk 1 and the second metal claw disk 6 move or vibrate relative to each other during power transmission, the gasket body 17 will be displaced and deformed in the slot 7. At this time, the roller 8 will roll as the gasket body 17 moves. The rolling of the roller 8 can more smoothly adapt to the dynamic changes of the gasket body 17, so that the elastic gasket 5 can play a more flexible role in the buffering and shock absorption process, thereby enhancing the buffering and shock absorption performance of the coupling.
[0033] The connecting column 2 has a shaft hole 18 for installing the rotating shaft, and the rubber ring 3 is installed inside the shaft hole 18. The rubber ring 3 plays multiple important roles in the operation of the entire coupling. The rubber ring 3 has good elasticity and flexibility. When the rotating shaft is installed, it can fit tightly against the surface of the rotating shaft, fill the possible small gaps between the rotating shaft and the shaft hole 18, play an effective sealing role, prevent dust, impurities and other foreign objects from entering the shaft hole 18, avoid these impurities from causing wear to the rotating shaft and the shaft hole 18, and thus extend the service life of the equipment.
[0034] Specifically, in practical applications, this coupling is used to connect two shafts that need to transmit power. By installing the shafts in the shaft holes 18 inside the connecting column 2, a stable connection with the coupling is achieved. Since the rubber ring 3 is installed inside the shaft holes 18, when the shaft rotates, the rubber ring 3 plays a role in buffering and damping, which can reduce the friction and vibration transmission between the shaft and the connecting column 2. At the same time, the rubber ring 3 has a certain elasticity, which can compensate for the slight deviations that may exist in the shaft during installation and ensure the stability of power transmission.
[0035] When the coupling is working, power is transmitted from one shaft to the elastic pad 5 through the first metal claw disc 1, and then from the elastic pad 5 to the second metal claw disc 6, and finally to another shaft. In this process, the elastic pad 5 can buffer the impact and vibration generated during power transmission by its own elastic deformation. At the same time, the cooperation between the pad body 17 and the slot 7 further enhances the stability of the elastic pad 5 when transmitting power, preventing the elastic pad 5 from shifting or falling off. The roller 8 connected to the surface of the slot 7 contacts the pad body 17. When the elastic pad 5 deforms, the roller 8 can roll, reducing the friction between the pad body 17 and the slot 7, making the buffering effect of the elastic pad 5 more significant, reducing the degree of wear, and extending the service life of the coupling.
[0036] The buffer structure consists of a fixed sleeve 4, a first buffer ring 11, a second buffer ring 12, bolts 9, and nuts 14. The fixed sleeve 4 is installed on the surfaces of the first metal claw disc 1 and the second metal claw disc 6, in two sets, and is fixed by bolts 9 and nuts 14. The external thread 13 on the surface of the bolt 9 matches and engages with the internal thread 15 inside the nut 14. The bolt 9 passes through the fixed sleeve 4 and is then screwed onto the nut 14. This connection method ensures the stability of the fixed sleeve 4. During the operation of the coupling, when the first metal claw disc 1 and the second metal claw disc 6 vibrate, the vibration is first transmitted to the fixed sleeve 4, and the first buffer ring 12... Ring 11 and the second buffer ring 12 are connected inside the fixed sleeve 4, and the second buffer ring 12 is located on one side of the first buffer ring 11. They can effectively absorb and mitigate vibration energy. The first buffer ring 11 and the second buffer ring 12 are usually made of materials with good elasticity and damping properties, such as rubber or silicone. When vibration is transmitted to the first buffer ring 11 and the second buffer ring 12, the first buffer ring 11 and the second buffer ring 12 will undergo elastic deformation, converting the vibration energy into their own internal energy, thereby reducing the impact of vibration on the first metal claw plate 1 and the second metal claw plate 6, and further improving the buffering and vibration reduction performance of the coupling.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wear-resistant, buffering, and shock-absorbing high-precision coupling, characterized in that, include: A first metal claw disk (1) is provided on one side of the first metal claw disk (1) and a second metal claw disk (6) is provided between the first metal claw disk (1) and the second metal claw disk (6). The gasket body (17) is evenly spaced on the surface of the elastic gasket (5), and the surface of the second metal claw disk (6) is provided with a slot (7) for placing the gasket body (17); A connecting column (2) is provided inside the connecting column (2), and the connecting column (2) is installed on one side of the first metal claw disk (1). The surfaces of the first metal claw disk (1) and the second metal claw disk (6) are provided with a buffer structure. Through the cooperation of the fixing sleeve (4), the first buffer ring (11) and the second buffer ring (12) of the buffer structure, the vibration generated by the first metal claw disk (1) and the second metal claw disk (6) is relieved.
2. The wear-resistant, buffering, and shock-absorbing high-precision coupling according to claim 1, characterized in that, The buffer structure includes bolts (9) connected to the surface of the fixed sleeve (4). The fixed sleeve (4) is installed on the surface of the first metal claw disk (1) and the second metal claw disk (6). There are two sets of fixed sleeves (4). The first buffer ring (11) is connected inside the fixed sleeve (4), and the second buffer ring (12) is connected inside the fixed sleeve (4) and located on one side of the first buffer ring (11).
3. The wear-resistant, buffering, and shock-absorbing high-precision coupling according to claim 2, characterized in that, The surface of the fixing sleeve (4) is provided with a threaded groove (16) for threading a bolt (9), and the bolt (9) passes through the fixing sleeve (4) and is threaded with a nut (14).
4. The wear-resistant, buffering, and shock-absorbing high-precision coupling according to claim 3, characterized in that, The bolt (9) has an external thread (13) on its surface and an internal thread (15) on its interior. The external thread (13) and the internal thread (15) are matched and screwed together.
5. The wear-resistant, buffering, and shock-absorbing high-precision coupling according to claim 1, characterized in that, The surface of the slot (7) is connected to a roller (8), and the roller (8) is in contact with the gasket body (17).
6. The wear-resistant, buffering, and shock-absorbing high-precision coupling according to claim 1, characterized in that, The connecting column (2) has a shaft hole (18) for installing the rotating shaft inside, and the rubber ring (3) is installed inside the shaft hole (18).