Noise reduction type chain wheel

Abstract

The utility model relates to the technical field of chain wheel transmission, and discloses a noise reduction type chain wheel which comprises chain wheel bodies and tooth bodies, the whole chain wheel bodies are arranged in a double-layer mode, a plurality of tooth bodies used for transmission meshing are fixedly installed on the outer wall faces of the chain wheel bodies at equal intervals, and fixing pieces are arranged between the chain wheel bodies. A shaft ring used for being connected with a shaft body is fixedly installed at the axis of the fixing piece through a screw, a shaft groove used for strengthening connection is formed in the inner wall face of the shaft ring, through mutual matching of the structures, the overall connection strength of the chain wheel is improved conveniently, meanwhile, noise generated by collision in the running process of the chain wheel is reduced, and the service life of the chain wheel is prolonged. The noise influence is reduced, the use experience is improved, and the device is more practical.

Description

Technical Field

[0001] The utility model relates to the technical field of sprocket transmission, in particular to a noise-reducing sprocket. Background Art

[0002] A sprocket is a wheel with cog-shaped sprocket teeth, which is mainly used to mesh with a block with accurate pitch on a link chain or cable. The principle is to transmit power through the meshing of the chain and the sprocket to achieve the movement of the mechanical device. Sprockets are widely used in mechanical transmission in chemical industry, textile machinery, escalators, wood processing, multi-story parking garages, agricultural machinery, food processing, instrumentation, petroleum and other industries.

[0003] However, when the existing assembled sprocket is in use, the connection between its internal structures is not tight enough, and the structure may become loose after long-term use, which causes the sprocket to not only generate vibration and noise when rotating, but also collide with the transmission chain, thereby causing serious wear of the case and increased noise due to collision, affecting use. In order to solve the above problems, while facilitating the improvement of the overall connection strength of the sprocket, the noise caused by collision during the operation of the sprocket is reduced, the noise impact is reduced, and the user experience is improved. For this reason, we have proposed a noise-reducing sprocket. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a noise-reducing sprocket to solve the above-mentioned problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise-reducing sprocket, comprising a sprocket body and a tooth body, the sprocket body as a whole presents a double-layer arrangement, and a plurality of tooth bodies for transmission engagement are evenly and fixedly installed on the outer wall surface of the sprocket body, a fixing piece is arranged between the sprocket bodies, a shaft ring for connecting to the shaft body is fixedly installed at the axis center of the fixing piece by screws, and an inner wall surface of the shaft ring is provided with an axis groove for strengthening the connection.

[0008] Preferably, there are two groups of fixing members, and a clamping groove matching with the sprocket body is provided at a position corresponding to the sprocket body on one side of the fixing member, and the sprocket body is clamped and installed inside the clamping groove.

[0009] Preferably, the outer wall surface of the fixing member is provided with a T-shaped connecting groove, and the inside of the connecting groove is plugged with a connecting plug block for supporting and fixing, and the connecting plug block is fixedly connected to the fixing member by screws.

[0010] Preferably, the outer wall surface of the sprocket body is sleeved with a rubber ring for reducing collision.

[0011] Preferably, the rubber ring is provided with engaging grooves matching with the plurality of teeth at positions corresponding to the plurality of teeth.

[0012] Preferably, noise reduction blocks matching with the rubber ring are fixedly mounted on both sides of the outer wall surface corresponding to the tooth body.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a noise reduction sprocket, which has the following beneficial effects:

[0015] 1. The noise reduction sprocket supports and fixes the inside of the sprocket body by setting the fixing parts, thereby reducing the noise impact caused by structural looseness.

[0016] 2. The noise reduction sprocket fixes and supports the fixing parts on both sides through the setting of the connecting groove and the connecting plug, so as to strengthen the overall structure of the sprocket.

[0017] 3. The noise reduction sprocket reduces the noise generated when the sprocket collides with the chain by setting the rubber ring and the engaging groove, thereby reducing the noise impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection groove structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the rubber ring structure of the utility model.

[0021] In the figure: 1. sprocket body; 2. tooth body; 3. fixing piece; 4. shaft ring; 5. shaft groove; 6. clamping groove; 7. connecting groove; 8. connecting plug block; 9. rubber ring; 10. fitting groove; 11. noise reduction block. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-3A noise reduction sprocket comprises a sprocket body 1 and a tooth body 2. The sprocket body 1 is a double-layer arrangement as a whole, and a plurality of tooth bodies 2 for transmission meshing are evenly and fixedly installed on the outer wall surface of the sprocket body 1. A fixing member 3 is arranged between the sprocket bodies 1. A shaft ring 4 for connecting to the shaft body is fixedly installed at the axis center of the fixing member 3 by screws, and an inner wall surface of the shaft ring 4 is provided with a shaft groove 5 for strengthening the connection.

[0024] Furthermore, there are two groups of fixing members 3, and a snap-in groove 6 matching with the sprocket body 1 is opened on one side of the fixing member 3 at a position corresponding to the sprocket body 1. The sprocket body 1 is snap-fitted and installed inside the snap-in groove 6. Through the setting of the fixing member 3, the inside of the sprocket body 1 is supported and fixed, thereby reducing the noise impact caused by structural looseness.

[0025] Furthermore, the outer wall surface of the fixing member 3 is provided with a T-shaped connecting groove 7, and the inside of the connecting groove 7 is plugged with a connecting block 8 for supporting and fixing. The connecting block 8 is fixedly connected to the fixing member 3 by screws. Through the setting of the connecting groove 7 and the connecting block 8, the fixing members 3 on both sides are fixed and supported, so as to strengthen the overall structure of the sprocket.

[0026] Furthermore, the outer wall surface of the sprocket body 1 is sleeved with a rubber ring 9 for reducing collision.

[0027] Furthermore, the rubber ring 9 is provided with fitting grooves 10 corresponding to the positions of the teeth 2. The rubber ring 9 and the fitting grooves 10 can reduce the noise generated when the sprocket and the chain collide, thereby reducing the noise impact.

[0028] Furthermore, noise reduction blocks 11 matching with the tooth body 2 are fixedly installed on both sides of the outer wall surface of the rubber ring 9. The noise reduction blocks 11 can effectively reduce the noise generated when the tooth body 2 contacts the chain, which is more practical.

[0029] Instructions

[0030] When in use, firstly, the two sets of fixing parts 3 are clamped with the sprocket body 1, and then the connecting plugs 8 are inserted into the connecting grooves 7 of the sprocket body 1 opened on the fixing parts 3 in turn to support and fix the fixing parts 3 to strengthen the overall structure of the sprocket. In addition, the noise generated when the sprocket collides with the chain is reduced by the arrangement of the rubber ring 9, the fitting groove 10 and the noise reduction block 11, thereby reducing the noise impact and making it more convenient to use the sprocket.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction sprocket, comprising a sprocket body (1) and a tooth body (2), wherein the sprocket body (1) is in a double-layer configuration, and a plurality of tooth bodies (2) for transmission engagement are fixedly mounted at equal intervals on the outer wall surface of the sprocket body (1), characterized in that: A fixing member (3) is arranged between the sprocket bodies (1), a shaft ring (4) for connecting to the shaft body is fixedly installed at the axis of the fixing member (3) by means of screws, and an inner wall surface of the shaft ring (4) is provided with a shaft groove (5) for strengthening the connection.

2. A noise reduction sprocket according to claim 1, characterized in that: There are two groups of fixing members (3), and a snap-fitting groove (6) matching the fixing member (3) is provided at a position corresponding to the sprocket body (1) on one side of the fixing member (3), and the sprocket body (1) is snap-fitted and installed inside the snap-fitting groove (6).

3. A noise reduction sprocket according to claim 1, characterized in that: The outer wall surface of the fixing member (3) is provided with a T-shaped connection groove (7), and the interior of the connection groove (7) is plugged with a connection plug block (8) for supporting and fixing, and the connection plug block (8) is fixedly connected to the fixing member (3) by screws.

4. A noise reduction sprocket according to claim 1, characterized in that: The outer wall surface of the sprocket body (1) is sleeved with a rubber ring (9) for reducing collision.

5. A noise reduction sprocket according to claim 4, characterized in that: The rubber ring (9) is provided with engaging grooves (10) matching with the plurality of tooth bodies (2) at positions corresponding to the plurality of tooth bodies (2).

6. A noise reduction sprocket according to claim 5, characterized in that: Noise reduction blocks (11) that match the rubber ring (9) are fixedly mounted on both sides of the outer wall surface corresponding to the tooth body (2).

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