A gear reducer with a noise reduction structure

Abstract

This utility model relates to the field of gear reducers, specifically to a gear reducer with a noise reduction structure, including a gearbox and vibration damping pads attached to the lower perimeter of the gearbox for cushioning. This gear reducer with a noise reduction structure, through the arrangement of the gearbox, vibration damping pads, sound-absorbing layer, upper gear cover, bolts, a first elastic ring, a nut, a sound-absorbing layer, a screw, and a second elastic ring, effectively reduces vibrations generated during operation by the vibration damping pads attached to the lower perimeter of the gearbox. Simultaneously, the gearbox and upper gear cover are fixed together by the first and second elastic rings fitted onto the bolts and screw, further enhancing the overall cushioning. Furthermore, the sound-absorbing layer inside the gearbox and the sound-absorbing layer inside the upper gear cover effectively reduce the noise generated during gear transmission, thereby improving the overall noise reduction effect.

Description

Technical Field

[0001] This utility model relates to the field of gear reducers, specifically to a gear reducer with a noise reduction structure. Background Technology

[0002] Gear reducers utilize gear transmission in multiple stages to achieve speed reduction. These reducers are widely used in metallurgy, mining, hoisting, transportation, cement, construction, chemical, textile, printing and dyeing, pharmaceutical, machinery manufacturing, automated production lines, food processing, and other fields.

[0003] A search revealed a utility model gear reducer with publication number CN219452825U, comprising a first gearbox, a second gearbox at the top of the first gearbox, the first and second gearboxes being of the same size and material, and both being hollow in the middle. A reduction mechanism is located in the middle of both gearboxes, comprising a second drive shaft and a first drive shaft. A rotating motor is located on the right side of both gearboxes, and a fixing component is provided at the connection between the first and second gearboxes. This utility model innovates upon the traditional gear reducer structure by incorporating the worm gear mechanism, which allows for changing the transmission direction. This worm gear mechanism within the gearbox enables the device to simultaneously perform horizontal and vertical transmission, achieving dual functionality and significantly improving its practicality.

[0004] Existing gear reducers lack noise reduction capabilities, and high-noise working environments can negatively impact the physical and mental health of operators, such as causing hearing damage and increased psychological stress. Noise or vibration may also mask early signs of equipment malfunctions, leading to delayed detection and handling of faults and increasing safety hazards. In the comparative case mentioned above, the gear reducers also lack noise reduction functions. Consequently, the vibrations and noise generated during operation, as well as the transmission noise between gears, not only affect the surrounding working environment but also shorten the service life of the gear reducers.

[0005] Therefore, it is necessary to invent a gear reducer with a noise reduction structure to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a gear reducer with a noise reduction structure. The shock-absorbing pads pasted around the bottom of the gearbox effectively reduce shaking. Simultaneously, the gearbox and upper gear cover are fixed together by bolts and screws using first and second elastic rings, enhancing overall buffering. Furthermore, the sound-absorbing layer inside the gearbox and the sound-absorbing layer inside the upper gear cover effectively reduce noise generated during gear transmission, thereby improving the overall noise reduction effect. This addresses the problem mentioned in the background art that existing gear reducers lack noise reduction capabilities, and that high-noise working environments negatively impact the physical and mental health of operators, such as hearing damage and increased psychological stress. Noise or vibration may also mask early signs of equipment malfunctions, leading to delayed detection and handling, and increasing safety hazards.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a gear reducer with a noise reduction structure, including a gearbox;

[0008] A shock-absorbing pad is pasted around the bottom of the gearbox for cushioning. An oil plug is provided on the rear side of the gearbox. Sound-absorbing layers are provided on the front and rear sides of the inside of the gearbox. A gear assembly is provided inside the gearbox. An upper gear cover is threaded on the top of the gearbox. Bolts pass through both sides of the upper gear cover. A first elastic ring is sleeved on the outside of the bolts. A nut is threaded below the first elastic ring.

[0009] A sound-absorbing layer is installed inside the upper gear cover for noise reduction. A vent is provided on the top of the upper gear cover. Screws pass through both sides of the upper gear cover, and a second elastic ring is sleeved on the outside of the screws.

[0010] Preferably, elastic pads are attached to both sides of the upper part of the gearbox, and the elastic pads are U-shaped.

[0011] Preferably, a corrosion-resistant layer is provided on the outside of the sound-absorbing layer, and the dimensions of the sound-absorbing layer and the corrosion-resistant layer match the inside of the gearbox on both sides.

[0012] Preferably, the sound-absorbing layer is made of sound-absorbing cotton, and the corrosion-resistant layer is made of epoxy resin.

[0013] Preferably, the sound-absorbing layer is tightly attached to the inside of the upper gear cover, and the material of the sound-absorbing layer is sound-absorbing cotton.

[0014] Preferably, the screw and the second elastic ring are provided in four sets, and the bolt and the first elastic ring are provided in two sets.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] This invention, through the arrangement of a gearbox, shock-absorbing pads, a sound-absorbing layer, an upper gear cover, bolts, a first elastic ring, a nut, a sound-absorbing layer, a screw, and a second elastic ring, effectively reduces vibrations generated during the operation of the gear reducer by using shock-absorbing pads attached around the bottom of the gearbox. Furthermore, the gearbox and upper gear cover are secured to each other by the first and second elastic rings fitted onto the bolts and screw, enhancing overall cushioning. In addition, the sound-absorbing layer inside the gearbox and the sound-absorbing layer inside the upper gear cover effectively reduce noise generated during gear transmission, thereby improving the overall noise reduction effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

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

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

[0020] Figure 3 This is a schematic diagram of the gearbox and upper gear cover structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the upper gear cover structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the sound-absorbing layer structure of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Gearbox; 2. Oil plug; 3. Vibration damping pad; 4. Elastic pad; 5. Sound-absorbing layer; 6. Corrosion-resistant layer; 7. Gear assembly; 8. Upper gear cover; 9. Bolt; 10. First elastic ring; 11. Nut; 12. Sound-absorbing layer; 13. Breather; 14. Screw; 15. Second elastic ring. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-5 The gear reducer shown includes a gearbox 1 with a noise reduction structure.

[0027] Shock-absorbing pads 3 are pasted around the bottom of gearbox 1 for cushioning. An oil plug 2 is provided on the rear side of gearbox 1. Sound-absorbing layers 5 are provided on the front and rear sides of the inside of gearbox 1. Gear assembly 7 is provided inside gearbox 1. An upper gear cover 8 is threaded on the top of gearbox 1. Bolts 9 pass through both sides of the upper gear cover 8. A first elastic ring 10 is sleeved on the outside of the bolts 9. A nut 11 is threaded on the bottom of the first elastic ring 10.

[0028] The sound-absorbing layer 12 is installed inside the upper gear cover 8 for noise reduction. A vent 13 is provided on the top of the upper gear cover 8. Screws 14 pass through both sides of the upper gear cover 8. A second elastic ring 15 is sleeved on the outside of the screws 14. When the entire gear reducer is running, a certain amount of vibration will be generated. The vibration damping pads 3 pasted around the bottom of the gearbox 1 can effectively reduce some of the shaking. At the same time, the gearbox 1 and the upper gear cover 8 are also fixed by the first elastic ring 10 and the second elastic ring 15 on the bolts 9 and screws 14, which also enhances the overall buffering. In addition, the sound-absorbing layer 5 inside the gearbox 1 and the sound-absorbing layer 12 inside the upper gear cover 8 can effectively reduce the noise generated by the transmission between gears, thereby improving the overall noise reduction effect.

[0029] like Figure 1 and Figure 2 As shown, elastic pads 4 are attached to both sides of the upper part of the gearbox 1. The elastic pads 4 are U-shaped. The gearbox 1 and the upper gear cover 8 are tightly attached to the elastic pads 4. When the gearbox 1 and the upper gear cover 8 shake, the gearbox 1 and the upper gear cover 8 will impact the elastic pads 4 when the upper gear cover 8 is shaken up and down by external force, which will reduce the noise generated when the gearbox 1 and the upper gear cover 8 shake up and down.

[0030] like Figure 2 As shown, a corrosion-resistant layer 6 is provided on the outside of the sound-absorbing layer 5. The dimensions of the sound-absorbing layer 5 and the corrosion-resistant layer 6 match the inside of the gearbox 1. The sound-absorbing layer 5 provided inside the gearbox 1 can effectively reduce the noise generated by the transmission between gears, thereby improving the overall noise reduction effect.

[0031] like Figure 2 As shown, the sound-absorbing layer 5 is made of sound-absorbing cotton, and the corrosion-resistant layer 6 is made of epoxy resin. The sound-absorbing layer 5, made of sound-absorbing cotton, can reduce the noise generated by the internal gear transmission, while the corrosion-resistant layer 6 can effectively improve the corrosion resistance of the gearbox 1.

[0032] like Figure 3 and Figure 4 As shown, the sound-absorbing layer 12 is tightly attached to the inside of the upper gear cover 8. The material of the sound-absorbing layer 12 is sound-absorbing cotton. The sound-absorbing layer 12 inside the upper gear cover 8 can effectively reduce the noise generated by the transmission between gears, thereby improving the overall noise reduction effect.

[0033] like Figure 3 , Figure 4 and Figure 5 As shown, there are four sets of screw 14 and second elastic ring 15, and two sets of bolt 9 and first elastic ring 10. The gearbox 1 and the upper gear cover 8 are fixed by the first elastic ring 10 and the second elastic ring 15 being fitted onto the bolt 9 and screw 14, which enhances the overall buffering and reduces noise.

[0034] The working principle of this practical device is as follows: The upper gear cover 8 is placed on the gearbox 1. Then, the bolt 9 and the screw 14 are fitted with a first elastic ring 10 and a second elastic ring 15, which pass through both sides of the gearbox 1 and the upper gear cover 8. Then, the nut 11 is put on one end of the bolt 9 and tightened. After that, the entire gear reducer is placed in the designated position and fixed. Then, when the entire gear reducer is running, a certain amount of vibration will be generated. The vibration damping pads 3 pasted around the bottom of the gearbox 1 can effectively reduce some of the shaking. In addition, the sound-absorbing layer 5 set inside the gearbox 1 and the sound-absorbing layer 12 inside the upper gear cover 8 can effectively reduce the noise generated by the transmission between gears, thereby improving the overall noise reduction effect. In this way, the use of the gear reducer with noise reduction structure is completed.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A gear reducer with a noise reduction structure, characterized in that: Including the gearbox (1); A shock-absorbing pad (3) is pasted around the bottom of the gearbox (1) for cushioning. An oil plug (2) is provided on the rear side of the gearbox (1). A sound-absorbing layer (5) is provided on the front and rear sides of the inside of the gearbox (1). A gear assembly (7) is provided inside the gearbox (1). An upper gear cover (8) is threaded on the top of the gearbox (1). Bolts (9) pass through both sides of the upper gear cover (8). A first elastic ring (10) is sleeved on the outside of the bolts (9). A nut (11) is threaded on the bottom of the first elastic ring (10). A sound-absorbing layer (12) is set inside the upper gear cover (8) for noise reduction. A ventilator (13) is provided on the top of the upper gear cover (8). A screw (14) runs through both sides of the upper gear cover (8). A second elastic ring (15) is sleeved on the outside of the screw (14).

2. The gear reducer with a noise reduction structure according to claim 1, characterized in that: Elastic pads (4) are attached to the upper sides of the gearbox (1), and the elastic pads (4) are U-shaped.

3. A gear reducer with a noise reduction structure according to claim 1, characterized in that: The sound-absorbing layer (5) is provided with a corrosion-resistant layer (6) on the outside, and the dimensions of the sound-absorbing layer (5) and the corrosion-resistant layer (6) match the inside sides of the gearbox (1).

4. A gear reducer with a noise reduction structure according to claim 3, characterized in that: The sound-absorbing layer (5) is made of sound-absorbing cotton, and the corrosion-resistant layer (6) is made of epoxy resin.

5. A gear reducer with a noise reduction structure according to claim 1, characterized in that: The sound-absorbing layer (12) is closely attached to the inside of the upper gear cover (8), and the material of the sound-absorbing layer (12) is sound-absorbing cotton.

6. A gear reducer with a noise reduction structure according to claim 1, characterized in that: The screw (14) and the second elastic ring (15) are provided in four sets, and the bolt (9) and the first elastic ring (10) are provided in two sets.

Images