Noise reduction gear

Abstract

The utility model discloses a noise reduction gear which comprises a gear body, rectangular grooves are formed in the left side face and the right side face of gear teeth of the gear body, sound absorption plates are filled in the rectangular grooves, a rubber pad of a V-shaped structure is arranged between the gear teeth, the left side and the right side of the rubber pad are pressed on the sound absorption plates, and the sound absorption plates are fixed and limited. A counter bore is formed in the bottom of the rubber pad, a flat screw is arranged in the counter bore, a threaded hole is formed in the gear body corresponding to the flat screw, and the flat screw is fixedly connected with the threaded hole in a threaded mode. The noise generated by meshing impact and vibration is reduced through the arrangement of the rubber pad, and meanwhile, the sound absorption plate and the sound absorption cotton are adopted for sound absorption treatment, so that the noise generated when the gears are mutually meshed and rotate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear technology field, concretely relates to a noise reduction gear. BACKGROUND

[0002] Gear transmission is one of the most common ways in mechanical transmission, and is widely used in industrial equipment, automobiles, aerospace and other fields. However, the traditional gear is prone to noise due to meshing impact and vibration during transmission, especially under high speed and heavy load working conditions, the noise problem is more prominent. This not only affects the working environment, but also may cause equipment fatigue damage. SUMMARY

[0003] The utility model discloses to the defects and insufficient of prior art, provide a kind of noise reduction gear that can reduce noise when mutually meshing rotation.

[0004] To achieve the above object, the utility model employs the technical scheme of: a noise reduction gear, including gear body, its innovation point is that: the gear tooth left and right side of the gear body is provided with rectangular groove, the inside of the rectangular groove is filled with sound-absorbing board, V-shaped structure rubber pad is arranged between the gear tooth, the left and right sides of the rubber pad are pressed on the sound-absorbing board, the sound-absorbing board is fixed and limited, the bottom of the rubber pad is provided with counterbore, and flat head screw is arranged in the counterbore, and threaded hole is formed in the gear body corresponding to the flat head screw, and the flat head screw is screw thread fixed connection with the threaded hole.

[0005] Further, the front of the gear body is provided with an annular groove, the annular groove is filled with sound-absorbing cotton, and the annular groove is communicated with the threaded hole.

[0006] Further, the left and right ends of the rubber pad extend to the upper surface of the gear tooth, and the top of the sound-absorbing board is limited.

[0007] Further, the front of the gear body is further provided with a cover plate, and the cover plate is fixed by the threaded hole and the bolt.

[0008] After adopting the above structure, the utility model has the beneficial effects that:

[0009] The utility model reduces noise by setting rubber pad, and simultaneously uses sound-absorbing board and sound-absorbing cotton for sound-absorbing treatment, thereby reducing noise generated when the gear is mutually meshed and rotated. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the structural schematic diagram of the utility model;

[0011] Figure 2 It is the structural schematic diagram of the cover plate in the utility model.

[0012] MARKED FOR EXPLANATION:

[0013] 1 gear body, 2 rectangular groove, 3 sound absorption board, 4 rubber pad, 5 flat head screw, 6 threaded hole, 7 annular groove, 8 sound absorption cotton, 9 cover plate. DETAILED DESCRIPTION

[0014] The utility model will be further explained in connection with the drawings.

[0015] In order to make the utility model purposes, technical scheme and advantages more clearly, the following is in connection with the drawings and specific embodiment, the utility model is further detailed explanation.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0016] Reference Figure 1 A kind of noise reduction gear, including gear body 1, rectangular groove 2 is set in the left and right side surface of the gear tooth of gear body 1, sound absorption board 3 is filled in rectangular groove 2, V-shaped structure rubber pad 4 is arranged between gear tooth, the left and right sides of rubber pad 4 are pressed on sound absorption board 3, sound absorption board 3 is fixed and positioned by rubber pad 4, counterbore is set in the bottom of rubber pad 4, and flat head screw 5 is set in counterbore, and threaded hole 6 is set in the corresponding gear body of flat head screw, and flat head screw 5 and threaded hole 6 are threadedly connected.Specifically, rubber pad 4 can reduce impact and vibration noise when gear meshes and rotates, and part of noise can be absorbed by using sound absorption board 3, to further reduce the noise generated when gear meshes and rotates;When rubber pad 4 is damaged in long-term use, it can be replaced by removing flat head screw 5, which is convenient and quick, and improves practicability.

[0017] In the embodiment, annular groove 7 is set in the front of gear body 1, and sound absorption cotton 8 is filled in annular groove 7, and annular groove 7 is communicated with threaded hole 6.Threaded hole 6 is used as sound absorption hole, and noise is transmitted to sound absorption cotton 8, and noise is absorbed by sound absorption cotton 8, to further reduce noise.

[0018] In the embodiment, the left and right ends of rubber pad 4 extend to the upper surface of gear tooth, and the top of sound absorption board 3 is positioned, to further fix sound absorption board 3.

[0019] In the embodiment, cover plate 9 is further set in the front of gear body 1, and cover plate 9 is fixed by threaded hole and bolt.Cover plate 9 covers annular groove 7 and sound absorption cotton 8, to fix sound absorption cotton 8.

[0020] The above is only used to explain the technical scheme of the utility model, but not limit it, other modifications or equivalent replacements of the technical scheme of the utility model made by ordinary skilled in the art should be covered in the scope of the claims of the utility model.

Claims

1. A noise reducing gear comprising a gear body, characterised in that: The rectangular groove is internally filled with sound-absorbing plates, V-shaped rubber pads are arranged between the gear teeth, the left and right sides of the rubber pad are pressed on the sound-absorbing plates to fix and limit the sound-absorbing plates, a counterbore is arranged at the bottom of the rubber pad, a flat head screw is arranged in the counterbore, a threaded hole is arranged on the corresponding gear body of the flat head screw, and the flat head screw is in threaded connection with the threaded hole.

2. The noise reducing gear of claim 1, wherein: The front surface of the gear body is provided with an annular groove, and the annular groove is filled with sound-absorbing cotton.

3. The noise reducing gear of claim 1, wherein: The left and right ends of the rubber pad extend to the upper surface of the gear tooth to limit the top of the sound-absorbing plate.

4. The noise reducing gear of claim 1, wherein: The front surface of the gear body is also provided with a cover plate, and the cover plate is fixed through the threaded hole and the bolt.

Images