Low-noise gear

Abstract

The utility model belongs to the technical field of gears, and particularly relates to a low-noise gear which comprises an installation shell, the side face of the installation shell is fixedly connected with a fixing shaft, the end, away from the installation shell, of the fixing shaft is rotationally connected with a gear, a noise reduction device is arranged on the inner wall of the gear, and the noise reduction device comprises a first positive magnetic block. The side face of the first positive magnetic block is fixedly connected to the inner wall of the gear, an oil bag is fixedly connected to the side face of the mounting shell, a second positive magnetic block is fixedly connected to the side face of the oil bag, a plurality of hoses are fixedly connected to the circumferential face of the oil bag, and nozzles are fixedly connected to the ends, away from the oil bag, of the hoses. And the circumferential surface of the oil bag is fixedly connected with a one-way liquid inlet pipe. According to the gear, the problem that when the gear rotates, friction is increased due to insufficient lubrication of the tooth surface, and noise is generated when the gear rotates is solved, so that the effect of reducing the noise generated by the gear is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gears, and particularly relates to a low-noise gear. Background Art

[0002] As an important part of the mechanical transmission system, a gear can effectively transmit torque and change the speed ratio through its precise tooth profile and reasonable design. It consists of a gear hub, teeth, a pitch circle, etc., and realizes power transmission through meshing.

[0003] A patent with the patent publication number CN105485300A discloses a gear, which includes a gear body. The gear body is composed of a tooth ring and a connecting disk. The outer ring of the tooth ring is provided with teeth, and the inner ring is provided with a groove for installing the connecting disk. The connecting disk is provided with a positioning groove matching the groove and an installation hole in the middle. A gear with such a structure has the advantages of simple installation, convenient use, and cost savings.

[0004] However, the current gear has the following problems: when the gear rotates, the tooth surface has increased friction due to insufficient lubrication, resulting in noise generated when the gear rotates. Therefore, we propose a low-noise gear. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a low-noise gear, which can solve the problem that in the related technology, when the gear rotates, the tooth surface has increased friction due to insufficient lubrication, resulting in noise generated when the gear rotates.

[0006] The technical solution adopted by the utility model is specifically as follows:

[0007] A low-noise gear includes an installation shell. A fixed shaft is fixedly connected to the side of the installation shell. One end of the fixed shaft away from the installation shell is rotatably connected to a gear. A noise reduction device is arranged on the inner wall of the gear. The noise reduction device includes a first positive magnetic block, and the side of the first positive magnetic block is fixedly connected to the inner wall of the gear. An oil bag is fixedly connected to the side of the installation shell. A second positive magnetic block is fixedly connected to the side of the oil bag. A plurality of hoses are fixedly connected to the circumferential surface of the oil bag. One end of each of the plurality of hoses away from the oil bag is fixedly connected to a nozzle. A one-way liquid inlet pipe is fixedly connected to the circumferential surface of the oil bag.

[0008] The tooth tip of the gear is located at the nozzle of the nozzle, and there is a gap between the second positive magnetic block and the gear.

[0009] The oil bag is arranged in a ring shape, and there is a gap between the oil bag and the gear.

[0010] A dust removal device is provided on the circumferential surface of the installation shell. The dust removal device includes a fixed block. The side surface of the fixed block is fixedly connected to the circumferential surface of the installation shell. A long rod penetrates and slides through the side surface of the fixed block. One end of the long rod away from the fixed block is fixedly connected to an L-shaped brush. The top of the L-shaped brush is fixedly connected to an arc-shaped block. A spring is provided between the L-shaped brush and the fixed block. A plurality of abutting blocks are fixedly connected to the inner wall of the gear.

[0011] The inner wall of the L-shaped brush is in contact with the tooth top of the gear, and the arc-shaped block is located on the displacement track of the plurality of abutting blocks.

[0012] A gap is provided between the L-shaped brush and the fixed block, and a gap is provided between the arc-shaped block and the fixed block.

[0013] The technical effects achieved by the present utility model are as follows:

[0014] Through the setting of the noise reduction device, the cooperation of the positive magnetic block one, the oil bag, the positive magnetic block two, the hose, and the nozzle enables the positive magnetic block two to move away from the positive magnetic block one. The movement of the positive magnetic block two will squeeze the oil bag. When the oil bag is squeezed, the lubricating liquid inside it will be sprayed out from the nozzle through the hose, thereby lubricating the gear, reducing the friction force of the gear during movement, and thus reducing the noise of the gear.

[0015] Through the setting of the dust removal device, the cooperation of the L-shaped brush, the arc-shaped block, the spring, and the abutting blocks enables the spring to drive the L-shaped brush and the arc-shaped block to reset through its own elastic force. Repeating like this, the reciprocating movement of the L-shaped brush is realized. The reciprocating movement of the L-shaped brush can better clean the dust on the surface of the gear, thereby avoiding the problem that dust and fine particles enter the gap between the gear teeth and the tooth roots, resulting in an increase in friction between the gear teeth. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the whole of the present utility model;

[0017] Figure 2 is a schematic diagram of the back of the present utility model;

[0018] Figure 3 is a schematic diagram of the structure at the hose of the present utility model;

[0019] Figure 4 is the present utility model Figure 3 schematic diagram of the structure at position A in;

[0020] Figure 5 is a schematic diagram of the structure at the L-shaped brush of the present utility model.

[0021] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0022] 1. Installation shell; 2. Noise reduction device; 3. Dust removal device; 4. Fixed shaft; 5. Gear; 21. First positive magnetic block; 22. Oil bag; 23. Second positive magnetic block; 24. Hose; 25. Nozzle; 26. One-way liquid inlet pipe; 31. Fixed block; 32. Long rod; 33. L-shaped brush; 34. Arc-shaped block; 35. Spring; 36. Contact block. Detailed implementation mode

[0023] In order to make the purpose and advantages of the present utility model more clear, the present utility model will be specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementation modes of the present utility model, and does not strictly limit the scope of protection specifically claimed by the present utility model.

[0024] As Figures 1-5 shown, a low-noise gear includes an installation shell 1. A fixed shaft 4 is fixedly connected to the side of the installation shell 1. One end of the fixed shaft 4 away from the installation shell 1 is rotatably connected to a gear 5. A noise reduction device 2 is arranged on the inner wall of the gear 5. The noise reduction device 2 includes a first positive magnetic block 21. The side of the first positive magnetic block 21 is fixedly connected to the inner wall of the gear 5. An oil bag 22 is fixedly connected to the side of the installation shell 1. When the oil bag 22 is squeezed, the lubricating liquid inside it will be sprayed out from the nozzle 25 through the hose 24, so as to lubricate the gear 5. A second positive magnetic block 23 is fixedly connected to the side of the oil bag 22. During the rotation of the first positive magnetic block 21, it will pass by the position aligned with the second positive magnetic block 23. At the same time, both the first positive magnetic block 21 and the second positive magnetic block 23 are positive poles, and due to the repulsion of like poles, a plurality of hoses 24 are fixedly connected to the circumferential surface of the oil bag 22. One end of the plurality of hoses 24 away from the oil bag 22 is fixedly connected to a nozzle 25. A one-way liquid inlet pipe 26 is fixedly connected to the circumferential surface of the oil bag 22. The one-way liquid inlet pipe 26 can supplement the lubricating liquid inside the oil bag 22;

[0025] The tooth top of the gear 5 is located at the nozzle of the nozzle 25, and there is a gap between the second positive magnetic block 23 and the gear 5;

[0026] The oil bag 22 is arranged in a ring shape, and there is a gap between the oil bag 22 and the gear 5;

[0027] According to the above structure, when the gear 5 is rotating, the rotation of the gear 5 will drive the positive magnetic block 1 21 to rotate. The positive magnetic block 1 21 will pass the position aligned with the positive magnetic block 2 23 during the rotation. At the same time, the moving positive magnetic block 1 21 and the positive magnetic block 2 23 are both positive poles, and because of the repulsion of the same poles, the positive magnetic block 2 23 will move in the direction away from the positive magnetic block 1 21. The movement of the positive magnetic block 23 will squeeze the oil bag 22. When the oil bag 22 is squeezed, the lubricating fluid inside it will be sprayed out from the nozzle 25 through the hose 24, thereby lubricating the gear 5, reducing the friction of the gear during movement, and thereby reducing the noise of the gear 5.

[0028] like Figures 1-5 As shown, the circumferential surface of the mounting shell 1 is provided with a dust removal device 3, which includes a fixed block 31, the side of the fixed block 31 is fixedly connected to the circumferential surface of the mounting shell 1, a long rod 32 is passed through and slides on the side of the fixed block 31, an end of the long rod 32 away from the fixed block 31 is fixedly connected to an L-shaped brush 33, the top of the L-shaped brush 33 is fixedly connected to an arc block 34, a spring 35 is provided between the L-shaped brush 33 and the fixed block 31, the spring 35 will drive the L-shaped brush 33 and the arc block 34 to reset through its own elastic force, and so on, so as to realize the reciprocating motion of the L-shaped brush 33, the reciprocating motion of the L-shaped brush 33 will better clean the dust on the surface of the gear 5, a plurality of abutment blocks 36 are fixedly connected to the inner wall of the gear 5, the rotation of the abutment blocks 36 will abut against the arc block 34, so that the arc block 34 moves;

[0029] The inner wall of the L-shaped brush 33 contacts the tooth top of the gear 5, and the arc block 34 is located on the displacement track of the plurality of abutment blocks 36;

[0030] A gap is provided between the L-shaped brush 33 and the fixed block 31, and a gap is provided between the arc block 34 and the fixed block 31;

[0031] According to the above structure, the rotation of the gear 5 will also drive the resistance block 36 to rotate, and the rotation of the resistance block 36 will resist the arc block 34, so that the arc block 34 moves, and the movement of the arc block 34 will drive the L-shaped brush 33 to squeeze the spring 35. When the rotation of the resistance block 36 does not resist the arc block 34, the spring 35 will drive the L-shaped brush 33 and the arc block 34 to reset through its own elastic force, and so on, thereby realizing the reciprocating motion of the L-shaped brush 33. The reciprocating motion of the L-shaped brush 33 can better clean the dust on the surface of the gear 5, thereby avoiding the problem that dust and fine particles can enter the gap between the tooth surface and the tooth root of the gear 5, resulting in increased friction between the tooth surfaces of the gear 5.

[0032] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model are implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. A low-noise gear, comprising a mounting shell (1), a fixed shaft (4) fixedly connected to a side surface of the mounting shell (1), and a gear (5) rotatably connected to an end of the fixed shaft (4) away from the mounting shell (1), characterized in that: The inner wall of the gear (5) is provided with a noise reduction device (2), the noise reduction device (2) comprises a positive pole magnetic block 1 (21), the side of the positive pole magnetic block 1 (21) is fixedly connected to the inner wall of the gear (5), the side of the mounting shell (1) is fixedly connected to an oil bag (22), the side of the oil bag (22) is fixedly connected to a positive pole magnetic block 2 (23), the circumferential surface of the oil bag (22) is fixedly connected to a plurality of hoses (24), one end of the plurality of hoses (24) away from the oil bag (22) is fixedly connected to a nozzle (25), and the circumferential surface of the oil bag (22) is fixedly connected to a one-way liquid inlet pipe (26).

2. A low noise gear according to claim 1, characterized in that: The tooth top of the gear (5) is located at the nozzle of the nozzle (25), and a gap is provided between the positive pole magnetic block 2 (23) and the gear (5).

3. A low noise gear according to claim 2, characterized in that: The oil bag (22) is arranged in a ring shape, and a gap is arranged between the oil bag (22) and the gear (5).

4. A low noise gear according to claim 3, characterized in that: The circumferential surface of the mounting shell (1) is provided with a dust removal device (3), the dust removal device (3) comprises a fixed block (31), the side surface of the fixed block (31) is fixedly connected to the circumferential surface of the mounting shell (1), a long rod (32) passes through the side surface of the fixed block (31) and slides, an L-shaped brush (33) is fixedly connected to one end of the long rod (32) away from the fixed block (31), an arc block (34) is fixedly connected to the top of the L-shaped brush (33), a spring (35) is provided between the L-shaped brush (33) and the fixed block (31), and a plurality of abutment blocks (36) are fixedly connected to the inner wall of the gear (5).

5. A low noise gear according to claim 4, characterized in that: The inner wall of the L-shaped brush (33) contacts the tooth top of the gear (5), and the arc block (34) is located on the displacement track of the plurality of abutment blocks (36).

6. A low noise gear according to claim 5, characterized in that: A gap is provided between the L-shaped brush (33) and the fixed block (31), and a gap is provided between the arc-shaped block (34) and the fixed block (31).

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