Coupler reinforcing structure
By setting the boss and limit bumps on the active and driven ends of the coupling, and using the connecting member locking structure, the problem of torque overload when the coupling is subjected to large torque is solved, and the torque resistance strength and service life are improved.
Patent Information
- Application Number
- CN202421137075.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-05-23
AI Technical Summary
Existing couplings are prone to torque overload when they are subjected to large torque, resulting in fatigue and breakage of bolts, affecting the service life of the active end and driven end.
A coupling reinforcement structure is designed, by providing a first boss and a second boss on the active end and the driven end, and embedding a limit bump and an insertion groove therebetween, the boss is locked with a connecting member to increase the torque resistance strength.
By increasing the limit contact area and friction resistance, the torque resistance of the active end and the driven end are improved, the service life of the coupling is extended, and the probability of fatigue and fracture of the connector due to torque is reduced.
Smart Images
Figure CN222823580U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of couplings, and in particular to a coupling reinforcement structure. Background Art
[0002] A coupling is a connecting piece used to connect and fix two shaft sections, and is commonly used to connect the output shaft and the driven shaft of a motor.
[0003] In the related art, the coupling includes a driving end, a driven end and a connecting bolt. The connecting bolt is used to connect and fix the driving end and the driven end so that the driven end and the driving end can maintain synchronous rotation. During installation, the driving end and the driven end are respectively connected and fixed to two different shaft sections to realize the transmission of torque between the two different shaft sections.
[0004] In the above-mentioned related technologies, when the active end and the driven end are positioned and fixed by high-quality connecting bolts, they can withstand strong torque. However, when the torque provided by the equipment is large or the torque is borne for a long time, torque overload will still exist, causing the bolts themselves to fatigue and break, which is not conducive to improving the service life of the active end and the driven end. Utility Model Content
[0005] In order to enable the driving end and the driven end to maintain good connection firmness when subjected to large torque and to extend the service life, the present application provides a coupling reinforcement structure.
[0006] A coupling reinforcement structure provided in this application adopts the following technical solution:
[0007] A coupling reinforcement structure, comprising:
[0008] The active end has a first boss fixedly provided on one side, and a embedding groove is provided on the surface of the first boss;
[0009] The driven end is fixedly provided with a second boss on the side wall facing the active end, and the second boss is fixedly provided with a limiting convex block on the side wall facing the first boss, and the limiting convex block is embedded in the embedding groove, and when the active end rotates circumferentially along its own axis, the inner wall of the embedding groove and the limiting convex block are limited along the axial direction;
[0010] A connecting member is disposed on the first boss and is used to lock the first boss and the second boss.
[0011] By adopting the above technical solution, when the active end and the driven end are locked by the connecting piece, the limiting protrusion is embedded in the embedding groove, so that the limiting contact area of the active end and the driven end in the axial direction is increased, so as to increase the torque resistance of the active end and the driven end, and maintain a good connection firmness when carrying a large torque.
[0012] Optionally, the connecting member includes a connecting bolt and a connecting nut, and the first boss and the second boss are both provided with through holes, and the connecting bolts pass through the through holes in turn and are connected and fixed to the connecting nuts.
[0013] By adopting the above technical solution, when the connecting bolt and the connecting nut are threadedly connected, the active end and the driven end are locked, so that the active end and the driven end can rotate synchronously and have good connection firmness.
[0014] Optionally, the connecting members are provided in a plurality of groups, and the plurality of groups of connecting members are evenly arranged circumferentially along the axis of the first boss.
[0015] By adopting the above technical solution, when multiple groups of connecting parts are evenly arranged circumferentially, the connection locking strength between the active end and the driven end is increased, thereby further improving the torque resistance between the active end and the driven end, which helps to reduce the probability of fatigue fracture of the connecting parts when subjected to torque.
[0016] Optionally, the number of the limiting protrusions and the embedding grooves corresponds one to one, and a plurality of the limiting protrusions are provided. When the limiting protrusions are embedded in the embedding grooves, the corresponding through holes on the first boss and the second boss are aligned with each other.
[0017] By adopting the above technical solution, when the limiting protrusion and the embedded groove are embedded and limited, the positioning and alignment of the through-holes are achieved, so that the connecting bolts in the connecting parts can be quickly passed through the corresponding through-holes and connecting nuts for locking and fixing, which helps to reduce the alignment time and improve the installation efficiency.
[0018] Optionally, the groove bottom side wall of the embedding groove is provided with friction convex patterns, and the limiting protrusion is pressed tightly against the friction convex patterns when embedded in the embedding groove.
[0019] By adopting the above technical solution, the setting of the friction convex pattern further increases the friction resistance between the limiting protrusion and the bottom side wall of the embedded groove, which helps to further improve the torsional strength between the active end and the driven end and can increase the service life.
[0020] Optionally, the circumferential inner walls of the first boss and the second boss are fixedly provided with limit blocks, and the circumferential outer walls of the active end and the driven end are fixedly provided with clamping blocks. When the first boss is sleeved on the circumferential outer wall of the active end and the second boss is sleeved on the circumferential outer wall of the driven end, the clamping blocks and the corresponding limit blocks form a circumferential limit abutment.
[0021] By adopting the above technical solution, the first boss and the second boss are both circumferentially limited by the limiting block and the clamping block, so that the first boss and the active end are kept relatively fixed, and the second boss and the driven end are kept relatively fixed.
[0022] Optionally, a receiving groove is formed on a side wall of the second boss toward the active end, and the connecting nut is embedded and received in the receiving groove.
[0023] By adopting the above technical solution, the opening of the storage groove makes it difficult for the connecting nut to be directly exposed on the surface, thereby reducing the probability of the connecting nut being touched by foreign objects, protecting the connecting nut, and helping to reduce the probability of the connecting nut being rusted or damaged.
[0024] Optionally, a connecting hole is formed on the peripheral outer wall of the second boss, and the connecting hole is connected to the receiving groove. When the connecting nut slides from the connecting hole to the bottom of the receiving groove, the connecting nut and the through hole are concentrically arranged.
[0025] By adopting the above technical solution, the opening of the connecting hole allows the connecting nut to be directly slid and embedded into the bottom of the receiving groove, and allows the connecting nut to be directly aligned with the through hole, which facilitates the threaded connection between the connecting nut and the connecting bolt, facilitates installation, and helps to improve installation efficiency.
[0026] Optionally, a limiting surface is provided on the inner wall of the embedding groove, and the circumferential side wall of the connecting nut abuts against the limiting surface to form a circumferential rotation limit.
[0027] By adopting the above technical solution, the limiting surface and the circumferential side wall of the connecting nut are in limiting contact, so that when the connecting nut and the connecting bolt are threadedly connected, the connecting nut is not easy to rotate synchronously, which facilitates the effective threaded connection between the connecting nut and the connecting bolt.
[0028] In summary, the present application includes at least one of the following beneficial technical effects:
[0029] 1. When the active end and the driven end are locked by the connecting piece, the limiting protrusion is embedded in the embedded groove, so that the limiting contact area of the active end and the driven end in the axial direction is increased, so as to increase the anti-torque strength of the active end and the driven end, and maintain a good connection firmness when carrying a large torque;
[0030] 2. When multiple groups of connecting parts are evenly arranged circumferentially, the connection locking strength between the active end and the driven end is increased, thereby further improving the torque resistance between the active end and the driven end, which helps to reduce the probability of fatigue fracture of the connecting parts when subjected to torque;
[0031] 3. The opening of the storage groove makes it difficult for the connecting nut to be directly exposed on the surface, thereby reducing the probability of the connecting nut being touched by foreign objects, protecting the connecting nut, and helping to reduce the probability of the connecting nut being rusted or damaged. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 It is a half-section view of the coupling reinforcement structure in the present application along its own axial direction.
[0033] Figure 2 It is a half-section view of the first boss in the present application along its own axial direction.
[0034] Figure 3 It is a schematic end view of the first boss in this application.
[0035] Figure 4 It is an exploded view of the half-section view of the active end, the first boss, the driven end, and the second boss in this application.
[0036] Figure 5 It is a partial cross-sectional view of the coupling reinforcement structure in the present application along the axial direction.
[0037] Explanation of the reference numerals: 1. Active end; 11. First boss; 111. Embedded groove; 112. Friction convex pattern; 2. Driven end; 21. Second boss; 211. Limiting protrusion; 212. Receiving groove; 213. Connecting hole; 214. Limiting surface; 3. Connecting piece; 31. Connecting bolt; 32. Connecting nut; 4. Sleeve groove; 5. Limiting block; 6. Clamping block; 7. Through hole. DETAILED DESCRIPTION
[0038] The following is combined with Figure 1-5 This application is described in further detail.
[0039] The embodiment of the present application discloses a coupling reinforcement structure.
[0040] Reference Figure 1-2The coupling reinforcement structure includes an active end 1, a driven end 2 and a connecting member 3. The active end 1 is fixedly provided with a first boss 11 on the peripheral outer wall near the driven end 2, and the driven end 2 is fixedly provided with a second boss 21 on the peripheral outer wall near the active end 1. The first boss 11 is provided with an embedding groove 111 on the surface facing the driven end 2, and the second boss 21 is fixedly provided with a limiting protrusion 211 on the side wall facing the active end 1. When the limiting protrusion 211 is embedded in the embedding groove 111, the active end 1 and the driven end 2 are coaxially arranged, and the side wall of the limiting protrusion 211 and the inner wall of the embedding groove 111 form a limiting abutment in the circumferential direction of the axis of the first boss 11. During installation, the first boss 11 and the second boss 21 are locked by the connecting member 3, so that the torsional moment strength of the active end 1 and the driven end 2 in the circumferential direction of the axis is increased. When subjected to a large torque load, fatigue damage and cracking are not likely to occur, which helps to extend the service life of the coupling.
[0041] In this embodiment, the driving end 1 and the driven end 2 are both cylindrical, and the driving end 1 and the driven end 2 are the same in size and shape, and are used for two shaft segments with the same diameter to be inserted and fixed by threaded connection. The coupling and the technology of coaxially fixing different shaft segments are conventional settings and are not the main improvement concept of this application, so they are not further described in detail.
[0042] Reference Figure 1-3 In this embodiment, a plurality of embedding grooves 111 are provided, and the plurality of embedding grooves 111 are evenly distributed along the circumferential direction of the axis of the active end 1. Correspondingly, the number of the limiting protrusions 211 corresponds to the number of the embedding grooves 111, so that the limiting protrusions 211 can be embedded in the corresponding embedding grooves 111, and the anti-torque strength is improved by increasing the limiting contact area. In addition, the groove bottom of the embedding groove 111 is provided with a friction convex pattern 112. When the limiting protrusion 211 is embedded in the groove bottom of the embedding groove 111, the friction convex pattern 112 and the limiting protrusion 211 are pressed against each other. Under the locking of the connecting member 3, the extrusion friction between the friction convex pattern 112 and the limiting protrusion 211 is further increased, which helps to increase the anti-torque strength.
[0043] Reference Figure 4The first boss 11 and the active end 1 as well as the second boss 21 and the driven end 2 are separately arranged, so as to reduce the steps of turning the active end 1 and the driven end 2, and the processing is relatively convenient. It should be further explained that the facing side walls of the first boss 11 and the second boss 21 are both provided with a sleeve groove 4, and the circumferential inner wall of the sleeve groove 4 is fixedly provided with a limit block 5, and the number of limit blocks 5 is provided in plurality, and the plurality of limit blocks 5 are evenly distributed along the circumferential inner wall of the corresponding first boss 11 or the second boss 21, so that the plurality of limit blocks 5 are arranged in a tooth shape as a whole, and the circumferential outer wall of the adjacent end of the active end 1 and the driven end 2 is integrally provided with a clamping block 6, and the number of the clamping blocks 6 corresponds to the number of the limit blocks 5. During installation, the first boss 11 is sleeved on the circumferential side of the active end 1, and the second boss 21 is sleeved on the circumferential side of the driven end 2, and the clamping block 6 and the limit block 5 are clamped with each other to form a circumferential rotation limit, so that the first boss 11, the second boss 21 and the corresponding active end 1 and the driven end 2 remain relatively fixed.
[0044] Reference Figure 4 and Figure 5 The connecting member 3 includes a connecting bolt 31 and a connecting nut 32. The first boss 11 and the second boss 21 are both provided with a through hole 7. The through hole 7 is hung through the parallel side walls of the corresponding first boss 11 and the second boss 21 for the screw of the connecting bolt 31 to pass through. During installation, the screw of the connecting bolt 31 passes through the corresponding two through holes 7 in sequence and is threadedly connected with the connecting nut 32. In this embodiment, a plurality of through holes 7 are provided, and the plurality of through holes 7 are evenly arranged along the circumferential direction of the axis of the first boss 11, and the through holes 7 and the embedding groove 111 are arranged at intervals, so that when the limiting protrusion 211 is embedded in the corresponding embedding groove 111, the through holes 7 on the first boss 11 and the second boss 21 can be automatically aligned, so that the connecting bolt 31 can be quickly inserted and passed through the through hole 7.
[0045] Reference Figure 4 and Figure 5 In order to prevent the connection nut 32 from being exposed on the surface of the second boss 21, a receiving groove 212 is provided on the surface of the second boss 21 facing the first boss 11. The receiving groove 212 is for the connection nut 32 to be embedded and received. A connecting hole 213 is provided on the horizontal side wall of the receiving groove 212. The connecting hole 213 is connected to the circumferential outer wall of the second boss 21 to guide the connection nut 32 to slide into the receiving groove 212. It should be further explained that a limiting surface 214 is provided on the horizontal inner wall of the receiving groove 212 away from the connecting hole 213. When the connection nut 32 abuts against the limiting surface 214, the connection nut 32 is aligned with the through hole 7, and the connection nut 32 is limited by the limiting surface 214 in the circumferential direction. When the connection bolt 31 is rotationally connected with the connection nut 32, the connection nut 32 is not easy to slip, which can increase the effectiveness of the threaded connection.
[0046] The implementation principle of a coupling reinforcement structure in an embodiment of the present application is as follows: after the limiting protrusion 211 is embedded in the corresponding embedding groove 111, it contacts with the friction ridge 112, so that the anti-torque strength between the active end 1 and the driven end 2 is increased. At the same time, when the connecting nut 32 and the connecting bolt 31 are connected and fixed, the first boss 11 and the second boss 21 are squeezed against each other. When the limiting protrusion 211 and the friction ridge 112 are squeezed, the friction resistance between the first boss 11 and the second boss 21 is further increased, so that the anti-torque torque is further increased, which can extend the service life of the coupling and reduce the probability of fatigue failure when the connecting bolt 31 is subjected to a large load torque.
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A coupling reinforcement structure, characterized in that: include: The active end (1) has a first boss (11) fixedly provided on one side, and a embedding groove (111) is provided on the surface of the first boss (11); The driven end (2) is fixedly provided with a second boss (21) on the side wall facing the driving end (1), and the second boss (21) is fixedly provided with a limiting convex block (211) on the side wall facing the first boss (11), and the limiting convex block (211) is embedded in the embedding groove (111), and when the driving end (1) rotates circumferentially along its own axis, the inner wall of the embedding groove (111) and the limiting convex block (211) are limited along the axial direction; A connecting member (3) is provided on the first boss (11) and is used for locking the first boss (11) and the second boss (21).
2. A coupling reinforcement structure according to claim 1, characterized in that: The connecting member (3) comprises a connecting bolt (31) and a connecting nut (32); the first boss (11) and the second boss (21) are both provided with a through hole (7); the connecting bolt (31) passes through the through hole (7) in sequence and is connected and fixed to the connecting nut (32).
3. A coupling reinforcement structure according to claim 1, characterized in that: The connecting members (3) are provided in a plurality of groups, and the plurality of groups of connecting members (3) are evenly arranged in the circumferential direction along the axis of the first boss (11).
4. A coupling reinforcement structure according to claim 2, characterized in that: The number of the limiting protrusions (211) and the embedding grooves (111) corresponds one to one, and a plurality of the limiting protrusions (211) are provided. When the limiting protrusions (211) are embedded in the embedding grooves (111), the corresponding through holes (7) on the first boss (11) and the second boss (21) are aligned with each other.
5. The coupling reinforcement structure according to claim 1, characterized in that: The groove bottom side wall of the embedding groove (111) is provided with a friction convex pattern (112), and the limiting protrusion (211) is tightly pressed against the friction convex pattern (112) when embedded in the embedding groove (111).
6. A coupling reinforcement structure according to claim 1, characterized in that: The first boss (11) and the second boss (21) are both fixedly provided with a limit block (5) on their circumferential inner walls, and the active end (1) and the passive end (2) are both fixedly provided with a clamping block (6) on their circumferential outer walls. When the first boss (11) is sleeved on the circumferential outer wall of the active end (1) and the second boss (21) is sleeved on the circumferential outer wall of the passive end (2), the clamping block (6) and the corresponding limit block (5) form a circumferential limit abutment.
7. A coupling reinforcement structure according to claim 2, characterized in that: A receiving groove (212) is provided on the side wall of the second boss (21) facing the active end (1), and the connecting nut (32) is inserted and received in the receiving groove (212).
8. A coupling reinforcement structure according to claim 7, characterized in that: A communication hole (213) is provided on the peripheral outer wall of the second boss (21), and the communication hole (213) is communicated with the receiving groove (212).
9. A coupling reinforcement structure according to claim 7, characterized in that: The inner wall of the embedding groove (111) is provided with a limiting surface (214), and the circumferential side wall of the connecting nut (32) abuts against the limiting surface (214) to form a circumferential rotation limit.