Coupling with anti-loosening structure

Abstract

The utility model relates to the technical field of couplings, and discloses a coupler with an anti-loosening structure, which comprises a coupler A. A coupler B is detachably mounted on the right side of the coupler A. The anti-loosening mechanism is arranged at the front part of the coupler A. The anti-loosening mechanism comprises a fixing block, a rotating plate is hinged to the front portion of the coupler B, a movable plate is elastically connected to the inner wall of the rotating plate through a connecting spring, a fastener is arranged on the inner wall of the fixing block, a fixing assembly is arranged on the inner wall of the front portion of the coupler B, and the fastener comprises a bolt. And the outer wall of the bolt penetrates through the inner wall of the fixed block and is in threaded connection with the inner wall of the movable plate. According to the utility model, the movable plate is additionally arranged and is fixedly connected with the fixed block through the bolt, so that axial force, radial force and torque generated under complex working conditions are effectively resisted, the risk of looseness of the coupler during working is reduced, stable power transmission is ensured, and accidental shutdown and production interruption caused by looseness of the coupler are avoided.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, and in particular to a coupling with an anti-loosening structure. Background Technology

[0002] A coupling is a mechanical transmission device used to connect two shafts (a driving shaft and a driven shaft) so that they can rotate together and transmit torque. It can transfer power from one shaft to another, ensuring that the two shafts remain synchronized during rotation, allowing the various parts of a mechanical device to work in coordination. For example, in the transmission system of an automobile, a coupling transmits power from the engine output shaft to the transmission input shaft, thereby driving the wheels to rotate.

[0003] Traditional couplings typically rely on simple key or bolt connections to connect and position two shafts. However, in actual operation, mechanical equipment often faces various complex working conditions, such as high-speed operation, frequent start-stop, vibration and impact, and load changes. These conditions can cause the coupling to bear large axial, radial, and torque forces, which can easily lead to loosening of the connection. In mechanical systems, this can affect transmission performance, causing abnormal equipment vibration, accelerated component wear, reduced transmission accuracy, noise, and even equipment failure and downtime, increasing maintenance costs and safety risks. Therefore, a coupling with an anti-loosening structure is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a coupling with an anti-loosening structure, which aims to improve the problem in the prior art where certain working conditions can cause the coupling to loosen, thereby affecting production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a coupling with an anti-loosening structure, comprising a coupling A, wherein a coupling B is detachably installed on the right side of the coupling A, and an anti-loosening mechanism is provided at the front of the coupling A;

[0006] The anti-loosening mechanism includes a fixed block, a rotating plate is hinged to the front of the coupling B, a movable plate is elastically connected to the inner wall of the rotating plate by a connecting spring, fasteners are provided on the inner wall of the fixed block, and a fixing component is provided on the inner wall of the front of the coupling B.

[0007] As a further description of the above technical solution:

[0008] The fastener includes a bolt, the outer wall of which penetrates the inner wall of the fixed block and is threaded onto the inner wall of the movable plate.

[0009] As a further description of the above technical solution:

[0010] One end of the connecting spring is fixedly connected to the inner wall of the rotating plate, and the other end of the connecting spring is fixedly connected to the outer wall of the movable plate. The outer wall of the movable plate is slidably connected to the inner wall of the rotating plate.

[0011] As a further description of the above technical solution:

[0012] A connecting groove is formed on the outer wall of the fixed block, and the protrusion of the movable plate contacts the inner wall of the connecting groove.

[0013] As a further description of the above technical solution:

[0014] The rear end of the fixing block is fixedly connected to the front of the coupling A.

[0015] As a further description of the above technical solution:

[0016] The fixing component includes a positioning plate, and a compression ball is fixedly connected to the bottom rear side of the positioning plate. A ball hole is opened on the outer wall of the movable plate, and the outer wall of the compression ball contacts the inner wall of the ball hole.

[0017] As a further description of the above technical solution:

[0018] The rear end of the positioning plate is rotatably connected to the front inner wall of the coupling B.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, through the mutual cooperation between the coupling A, coupling B and their anti-loosening mechanism, and by adding a movable plate and a fixed block connected by bolts, the axial force, radial force and torque generated under complex working conditions are effectively resisted, greatly reducing the risk of loosening of the coupling during operation, ensuring stable power transmission, ensuring continuous and efficient operation of the equipment, and avoiding unexpected shutdowns and production interruptions caused by loose couplings.

[0021] 2. In this utility model, through the mutual cooperation between the fixed components and other structures, when the movable plate is not in use, it is rotated to the right side, thereby causing the positioning plate to rotate downwards. This ensures that the movable plate will not rotate when not in use or during transportation, and is located on one side of the coupling B, making the overall layout of the equipment more compact and reasonable. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a coupling with an anti-loosening structure proposed in this utility model.

[0023] Figure 2 This is a three-dimensional schematic diagram of the movable plate of a coupling with an anti-loosening structure proposed in this utility model.

[0024] Figure 3 This is an enlarged structural diagram of point A of a coupling with an anti-loosening structure proposed in this utility model;

[0025] Figure 4 This is a schematic diagram showing the coupling B and its positioning plate of a coupling with an anti-loosening structure proposed in this utility model.

[0026] Legend:

[0027] 1. Coupling A; 2. Coupling B; 3. Anti-loosening mechanism; 301. Fixing block; 302. Movable plate; 303. Bolt; 305. Rotating plate; 306. Connecting spring; 4. Fixing assembly; 401. Positioning plate; 402. Ball hole; 403. Extrusion ball. Detailed Implementation

[0028] 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.

[0029] Reference Figures 1-2 One embodiment of this utility model provides a coupling with an anti-loosening structure, including a coupling A1, a coupling B2 detachably installed on the right side of the coupling A1, a spline provided between the coupling A1 and the coupling B2 and fixed by corresponding screws, and an anti-loosening mechanism 3 provided at the front of the coupling A1; the anti-loosening mechanism 3 enhances the stability of the coupling and reduces the occurrence of loosening during operation.

[0030] Reference Figures 1-3 The anti-loosening mechanism 3 includes a fixed block 301. A rotating plate 305 is hinged to the front of the coupling B2. The rotating plate 305 can rotate horizontally. A movable plate 302 is elastically connected to the inner wall of the rotating plate 305 through a connecting spring 306. A protrusion is provided on the side of the movable plate 302 away from the coupling A1. The protrusion is designed for easy positioning. Fasteners are provided on the inner wall of the fixed block 301. The fasteners can limit the movable plate 302. A fixing component 4 is provided on the inner wall of the front of the coupling B2. The fixing component 4 allows the movable plate 302 to be folded and limited when not in use.

[0031] Reference Figures 1-3The fasteners include bolts 303, the outer wall of which penetrates the inner wall of the fixing block 301 and is threaded onto the inner wall of the movable plate 302. Two sets of bolts 303 are provided. Threaded holes are opened on both the upper and lower sides of the movable plate 302. The movable plate 302 is fixed and limited by the threaded connection between the bolts 303 and the threaded holes. One end of the connecting spring 306 is fixedly connected to the inner wall of the rotating plate 305, and the other end is fixedly connected to the outer wall of the movable plate 302. The outer wall of the movable plate 302 penetrates and slidably connects to the inner wall of the rotating plate 305. The elasticity of the connecting spring 306 allows the movable plate 302 to have the purpose of resetting and pre-positioning. A connecting groove is opened on the outer wall of the fixing block 301, and the protrusion of the movable plate 302 contacts the inner wall of the connecting groove. The two contact, such as... Figure 1 As shown, the movable plate 302 is pulled to the right by the elasticity of the connecting spring 306, which facilitates the subsequent installation of the bolt 303. The distance between the movable plate 302 and its rotating plate 305 can be adjusted to accommodate different models of couplings. The rear end of the fixed block 301 is fixedly connected to the front of the coupling A1. The two are fixed together to support the fixed block 301.

[0032] Reference Figures 2-4 The fixing component 4 includes a positioning plate 401. A compression ball 403 is fixedly connected to the bottom rear side of the positioning plate 401. The rear side of the positioning plate 401 is cylindrical and the front side is square. The compression ball 403 is provided at the rear of the square plate. The compression ball 403 is made of rubber. A ball hole 402 is opened on the outer wall of the movable plate 302. The outer wall of the compression ball 403 contacts the inner wall of the ball hole 402. The contact between the two can fix the movable plate 302 after it is stored, so as to prevent rotation. The rear end of the positioning plate 401 is rotatably connected to the front inner wall of the coupling B2. When the movable plate 302 needs to be stored, the positioning plate 401 needs to be rotated upward first, and then reset so that the ball hole 402 contacts the compression ball 403.

[0033] Working principle: When installing the coupling, first connect coupling A1 to the driving shaft and coupling B2 to the driven shaft. Since a spline is provided between coupling A1 and coupling B2, and they are fixed with corresponding screws, initial circumferential and axial positioning is achieved. At this time, the fixing block 301 in the anti-loosening mechanism 3 is fixed to the front of coupling A1. When the anti-loosening mechanism 3 needs to be installed, first rotate the positioning plate 401 upwards to release the contact limit between the compression ball 403 and the ball hole 402. Then rotate the rotating plate 305 to bring it close to the fixing block 301, and at this time pull out the movable plate 302, so that the protrusion on its outer wall extends towards the fixing block 301. When the movable plate 302 rotates 180 degrees, the elastic force of the connecting spring 306 keeps the movable plate 302... Pull to the right to align the screw holes on the movable plate 302 with the corresponding positions on the fixed block 301. Then, pass the two sets of bolts 303 through the inner wall of the fixed block 301 and screw them into the screw holes on the upper and lower sides of the movable plate 302. Through the threaded connection between the bolts 303 and the screw holes, the movable plate 302 is fixed to the fixed block 301. This further connects the coupling A1 and the coupling B2 together through the anti-loosening mechanism 3, enhancing the overall stability of the coupling and reducing the possibility of loosening during operation.

[0034] When the movable plate 302 needs to be stored, for example when the anti-loosening mechanism 3 is not needed, first rotate the positioning plate 401 upwards, then flip the movable plate 302 back to its original position, and then rotate the positioning plate 401 downwards. At this time, the compression ball 403 on the rear bottom side of the positioning plate 401 re-engages with the ball hole 402 on the outer wall of the movable plate 302. Since the compression ball 403 is made of rubber and has a certain elasticity, it will generate a certain friction and compression force when in contact, thereby fixing the stored movable plate 302 and preventing it from rotating when not in use.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coupling with anti-loosening structure comprising a coupling A (1), characterized in that: The right side of the coupling A (1) is detachably installed with a coupling B (2), and the front part of the coupling A (1) is provided with an anti-loose mechanism (3); The anti-loose mechanism (3) comprises a fixed block (301), the front part of the coupling B (2) is hingedly connected with a rotating plate (305), the inner wall of the rotating plate (305) is elastically connected with a movable plate (302) through a connecting spring (306), the inner wall of the fixed block (301) is provided with a fastener, and the front inner wall of the coupling B (2) is provided with a fixing assembly (4).

2. The shaft coupling with the anti-loosening structure according to claim 1, characterized in that: The fastener comprises a bolt (303), the outer wall of the bolt (303) penetrates the inner wall of the fixed block (301) and is threadedly connected on the inner wall of the movable plate (302).

3. The shaft coupling with the anti-loosening structure according to claim 1, characterized in that: One end of the connecting spring (306) is fixedly connected on the inner wall of the rotating plate (305), and the other end of the connecting spring (306) is fixedly connected on the outer wall of the movable plate (302), and the outer wall of the movable plate (302) penetrates and is slidingly connected on the inner wall of the rotating plate (305).

4. The shaft coupling with the anti-loosening structure according to claim 1, characterized in that: The outer wall of the fixed block (301) is provided with a connecting groove, and the protrusion of the movable plate (302) is in contact with the inner wall of the connecting groove.

5. The shaft coupling with anti-loosening structure according to claim 1, characterized in that: The rear end of the fixed block (301) is fixedly connected on the front part of the coupling A (1).

6. The shaft coupling with an anti-loosening structure according to claim 1, characterized in that: The fixing assembly (4) comprises a positioning plate (401), the bottom rear side of the positioning plate (401) is fixedly connected with a pressing ball (403), the outer wall of the movable plate (302) is provided with a ball hole (402), and the outer wall of the pressing ball (403) is in contact with the inner wall of the ball hole (402).

7. The shaft coupling with the anti-loosening structure according to claim 6, characterized in that: The rear end of the positioning plate (401) is rotationally connected on the front inner wall of the coupling B (2).

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