Low noise gear

Abstract

The utility model provides a kind of low noise gear belongs to gear technical field, it solves the technical problem of the noise of the gear block collision of existing cannot be weakened, influence noise reduction performance.A kind of low noise gear, including gear body, a pair of shaft rod fixed coaxially on gear body, multiple guide sliding slots are annularly opened on the axle of gear body, each guide sliding slot is slidably connected with damping block, the end of each damping block is exposed in the gear block gap of gear body, and vibration-proof assembly is arranged in each damping block, and sound absorption cavity is opened in gear body, and sound absorption sponge is fixed in sound absorption cavity, and sound hole is opened in the groove bottom of each guide sliding slot, which is communicated with sound absorption cavity.The utility model has the advantages of reducing the noise of gear block collision, improving noise reduction performance.

Description

Technical Field

[0001] This utility model belongs to the field of gear technology, and relates to a gear, particularly a low-noise gear. Background Technology

[0002] A gear is a mechanical component with teeth on its rim that can continuously mesh to transmit motion and power. In use, existing gears, due to their mostly fixed, rigid structure, will mesh and collide with each other during transmission, generating noise and failing to meet usage requirements in noise-sensitive environments.

[0003] A search revealed a noise-reducing gear disclosed in Chinese patent literature [Application No.: 202320845793.1; Publication No.: CN 220037384 U]. This noise-reducing gear includes a drive disk, an engagement ring on the outer wall of the drive disk's outer ring, and a reinforcing ring welded to the outer wall at the center of the drive disk. A drive hole is formed at the reinforcing ring on the outer wall at the center of the drive disk, and heat dissipation holes are evenly distributed on the outer wall of the drive disk. Equally distributed gear teeth are welded to the outer wall of the engagement ring, and wear-resistant components are provided on the outer walls of the gear teeth and the outer wall of the engagement ring. This invention utilizes the engagement ring, which is inserted into the connecting groove of the drive disk via a connecting protrusion. After the drive disk and engagement ring rotate, the heat dissipation holes drive airflow and oil from one side of the drive disk to the other side, facilitating passive heat dissipation and easy replacement. When the gear teeth in the engagement ring mesh, the teeth contact the wear-resistant plate, reducing wear. The connecting pad isolates the gear teeth from the engagement ring, thus reducing the noise generated during meshing.

[0004] Although this patent reduces the noise generated during meshing, the mechanical impact caused by the instantaneous contact / disengagement between the gear teeth during meshing produces a noticeable collision sound. This application cannot reduce the noise from the collision of the gear teeth, thus affecting the noise reduction performance. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a low-noise gear. The technical problem this invention aims to solve is: how to reduce the noise of tooth block collisions and improve noise reduction performance.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A low-noise gear includes a gear body and a pair of shafts coaxially fixed on the gear body. The gear body has multiple guide grooves circumferentially formed along its axis. Each guide groove is slidably connected to a damping block. One end of each damping block is exposed in the gap between the gear teeth of the gear body. Each damping block is provided with an anti-vibration component. The gear body has a sound-absorbing cavity with a sound-absorbing sponge fixed inside. The bottom of each guide groove has a sound-transmitting hole communicating with the sound-absorbing cavity.

[0008] The working principle of this utility model is as follows: when the gear bodies mesh with each other, the shock-absorbing block fills the gap between the gear bodies, reducing the mechanical impact distance, thereby further reducing the noise of the operation between the gear bodies. Furthermore, the sound generated when the shock-absorbing block is pressed and moved is absorbed by the sound-absorbing sponge in the sound-absorbing cavity, further reducing the noise generation, so that the gear body can operate with low noise throughout the entire process.

[0009] The vibration damping component includes a pair of slidably connected within each damping block. The surface of each slidable block is in contact with the groove wall of the corresponding guide groove, and a pair of return springs are fixed between each pair of slidable blocks.

[0010] With the above structure, the two stabilizing blocks can be pushed by the return spring, so that the stabilizing blocks always fit against the groove wall of the guide slide, stabilizing the normal movement of the shock absorber. Furthermore, the stabilizing blocks, through their retractable capability, further absorb the vibration and noise caused by mechanical impact.

[0011] A damping spring is fixed between the bottom of each guide groove and the corresponding damping block.

[0012] By adopting the above structure, the shock absorption force that the stabilizer can absorb during movement can be further improved by using shock-absorbing springs, thereby improving the noise reduction effect.

[0013] Each tooth block of the gear body is fixed with a high-strength wear-resistant plate, and each tooth block of the gear body is fixed with a honeycomb structure inside.

[0014] By adopting the above structure, the damage to the gear body during operation can be reduced by high-strength wear-resistant plates, extending the service life of the gear body, and the structural strength of the tooth block part in the gear body can be improved by honeycomb structure.

[0015] The high-strength wear-resistant plate uses low-carbon steel as the base material, and a high-carbon, high-chromium alloy wear-resistant layer is overlaid on the surface of the high-strength wear-resistant plate. The honeycomb structure is made of aluminum alloy.

[0016] By adopting the above structure, low-carbon steel can be used as the base material for high-strength wear-resistant plates, providing high-strength performance. Furthermore, the wear resistance is improved by overlaying a high-carbon, high-chromium alloy wear-resistant layer on the surface of the high-strength wear-resistant plate.

[0017] Compared with existing technologies, this low-noise gear has the following advantages:

[0018] 1. When the gear bodies mesh with each other, the shock absorber blocks fill the gaps between the gear bodies, reducing the mechanical impact distance and thus further reducing the noise of the gear bodies during operation.

[0019] 2. Furthermore, the sound generated when the shock absorber moves under pressure is absorbed by the sound-absorbing sponge in the sound-absorbing cavity, further reducing noise generation and enabling the gear body to operate with low noise throughout the entire process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the internal structure of the gear body in this utility model.

[0022] Figure 3 This is a schematic diagram of the internal structure of the shock absorber block in this utility model.

[0023] In the diagram, 1. Gear body; 2. Shaft; 3. Guide groove; 4. Shock-absorbing block; 5. Sound-absorbing cavity; 6. Sound-absorbing sponge; 7. Sound-permeable hole; 8. Stable block; 9. Return spring; 10. Shock-absorbing spring; 11. High-strength wear-resistant plate; 12. Honeycomb structure. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] like Figures 1-3 As shown, a low-noise gear includes a gear body 1 and a pair of shafts 2 coaxially fixed on the gear body 1. Multiple guide grooves 3 are circumferentially formed on the gear body 1 along its axis. Each guide groove 3 is slidably connected to a damping block 4. One end of each damping block 4 is exposed in the gap between the gear teeth of the gear body 1. Each damping block 4 is provided with an anti-vibration component. A sound-absorbing cavity 5 is formed in the gear body 1. A sound-absorbing sponge 6 is fixed in the sound-absorbing cavity 5. The bottom of each guide groove 3 is provided with a sound-transmitting hole 7 that communicates with the sound-absorbing cavity 5.

[0026] When the gear bodies 1 mesh with each other, the damping block 4 fills the gap between the gear bodies 1, reducing the mechanical impact distance, thereby further reducing the noise of the operation between the gear bodies 1. Furthermore, the sound generated when the damping block 4 is pressed and moved is absorbed by the sound-absorbing sponge 6 in the sound-absorbing cavity 5, further reducing the noise generation, so that the gear bodies 1 can operate with low noise throughout the entire process.

[0027] The vibration damping assembly includes a pair of slidably connected stable blocks 8 within each damping block 4. The surface of each stable block 8 is in contact with the groove wall of the corresponding guide groove 3, and a pair of return springs 9 are fixed between each pair of stable blocks 8.

[0028] With the above structure, the two stabilizing blocks 8 can be pushed by the return spring 9, so that the stabilizing blocks 8 always fit against the groove wall of the guide slide 3, stabilizing the normal movement of the shock absorber 4. Furthermore, the stabilizing blocks 8 absorb the vibration and noise caused by mechanical impact through their retractable capacity.

[0029] Each guide groove 3 has a damping spring 10 fixed between its bottom and the corresponding damping block 4.

[0030] By adopting the above structure, the shock absorption force that the stabilizer block 8 can absorb during its movement can be further increased by the shock-absorbing spring 10, thereby improving the noise reduction effect.

[0031] Each tooth block of the gear body 1 is fixed with a high-strength wear-resistant plate 11, and each tooth block of the gear body 1 is fixed with a honeycomb structure 12 inside.

[0032] By adopting the above structure, the high-strength wear-resistant plate 11 can reduce the damage caused by the operation of the gear body 1 and extend the service life of the gear body 1. Furthermore, the honeycomb structure 12 can improve the structural strength of the tooth block part in the gear body 1.

[0033] The high-strength wear-resistant plate 11 uses low-carbon steel as the base material, and a high-carbon high-chromium alloy wear-resistant layer is overlaid on the surface of the high-strength wear-resistant plate 11. The honeycomb structure 12 is made of aluminum alloy.

[0034] By adopting the above structure, low-carbon steel can be used as the base material of the high-strength wear-resistant plate 11 to provide high strength performance, and the wear resistance performance can be further improved by overlaying a high-carbon high-chromium alloy wear-resistant layer on the surface of the high-strength wear-resistant plate 11.

[0035] The working principle of this utility model is as follows: The return spring 9 pushes the two stabilizing blocks 8, so that the stabilizing blocks 8 always fit against the groove wall of the guide slide 3, stabilizing the normal movement of the shock absorber 4. The stabilizing blocks 8, through their extensibility, further absorb the vibration and noise caused by mechanical impact. The shock absorber spring 10 further increases the impact force that the stabilizing blocks 8 can absorb when they move, thereby improving the quietness effect. The high-strength wear-resistant plate 11 reduces the damage caused by the operation of the gear body 1 and extends the service life of the gear body 1. The honeycomb structure 12 improves the structural strength of the tooth block part in the gear body 1. The sound generated when the shock absorber 4 moves under pressure is absorbed by the sound-absorbing sponge 6 in the sound absorption cavity 5, further reducing the generation of noise, so that the gear body 1 can operate with low noise throughout the entire process.

[0036] In summary, when the gear bodies 1 mesh with each other, the damping block 4 fills the gap between the gear bodies 1, reducing the mechanical impact distance, thereby further reducing the noise of the operation between the gear bodies 1. Furthermore, the sound generated when the damping block 4 is pressed and moved is absorbed by the sound-absorbing sponge 6 in the sound-absorbing cavity 5, further reducing the noise generation, so that the gear bodies 1 can operate with low noise throughout the entire process.

[0037] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A low noise gear comprising a gear body (1), a pair of shafts (2) coaxially fixed on the gear body (1), characterized in that, The gear body (1) has multiple guide grooves (3) circumferentially arranged along its axis. Each guide groove (3) is slidably connected with a damping block (4). One end of each damping block (4) is exposed in the tooth gap of the gear body (1). Each damping block (4) is provided with an anti-vibration component. The gear body (1) has a sound absorption cavity (5). The sound absorption cavity (5) is fixed with a sound-absorbing sponge (6). The bottom of each guide groove (3) is provided with a sound-transmitting hole (7) that connects to the sound absorption cavity (5).

2. A low noise gear as claimed in claim 1, wherein The vibration damping assembly includes a pair of slidably connected stable blocks (8) in each damping block (4), the surface of each stable block (8) is in contact with the groove wall of the corresponding guide groove (3), and a pair of return springs (9) are fixed between each pair of stable blocks (8).

3. A low noise gear as claimed in claim 1, wherein, Each of the guide grooves (3) has a damping spring (10) fixed between the bottom of the groove and the corresponding damping block (4).

4. A low noise gear as claimed in claim 1, wherein, Each tooth block of the gear body (1) is fixed with a high-strength wear-resistant plate (11), and each tooth block of the gear body (1) is fixed with a honeycomb structure (12).

5. A low noise gear as claimed in claim 1, wherein, The high-strength wear-resistant plate (11) uses low-carbon steel as the base material, and a high-carbon high-chromium alloy wear-resistant layer is overlaid on the surface of the high-strength wear-resistant plate (11). The honeycomb structure (12) is made of aluminum alloy.

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