Low-vibration noise-reduction worm and gear speed reducer
By introducing air-filled shock absorbers and noise reduction covers into the worm gear reducer, vibration and noise problems are solved, achieving vibration and noise reduction effects, improving the stability and environmental adaptability of the equipment, and making it suitable for the retrofitting of new and old equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU HENGWEI REDUCER CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-04-24
AI Technical Summary
The vibration and noise generated by existing worm gear reducers during operation lead to wear of mechanical parts, shorten equipment life, affect the working environment and the health of operators, and pose safety hazards.
It adopts an airbag-type shock absorber and noise reduction cover design. The airbag absorbs vibration energy and reduces noise, while the modular design enhances connection stability and reduces wear and noise impact.
It effectively reduces vibration and noise, extends equipment life, improves safety and working environment quality, reduces maintenance costs, and is suitable for retrofitting both new and old equipment.
Smart Images
Figure CN224162050U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of worm gear reducer technology, and in particular to a low-vibration and noise-reducing worm gear reducer. Background Technology
[0002] A worm gear reducer is a mechanical device that uses the meshing between a worm and a worm wheel to achieve speed reduction and transmission. With its unique transmission method, the worm gear reducer provides high-efficiency speed reduction while ensuring the stability and safety of the system, making it an important component of modern mechanical transmission systems.
[0003] During operation, speed reducers generate vibration and noise due to factors such as gear meshing errors, unbalanced rotating parts, inappropriate lubrication, material defects, and structural loosening. These problems can lead to a series of adverse consequences, such as accelerated wear of mechanical parts, shortened equipment lifespan, and increased maintenance costs. Furthermore, excessively high noise levels not only affect the working environment but may also harm the health of operators, causing hearing damage and increased psychological stress. In addition, significant vibration may cause resonance in the entire machine or its components, further exacerbating the risk of mechanical failure and potentially leading to decreased production efficiency, or even, in extreme cases, safety accidents. Therefore, effective control and optimization of speed reducer vibration and noise are crucial for improving equipment reliability, extending service life, and improving the working environment. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a low-vibration, low-noise worm gear reducer.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A low-vibration, noise-reducing worm gear reducer includes: a reducer body, the bottom of which is fixed to a base, the base being fixed to a mounting position by bolt one, and a cooling pipe connected to the reducer body; a noise-reducing cover, the reducer body being located inside the noise-reducing cover, the noise-reducing cover having several openings for the shaft of the reducer body to pass through; a mounting frame, fixedly fitted onto the bottom end of the side wall of the noise-reducing cover, the mounting frame being fixed to the mounting position by bolt two; and a shock-absorbing component disposed between the reducer body and the noise-reducing cover.
[0007] As a preferred technical solution of this utility model, the shock absorber includes: an airbag, the sidewall of which is fixed to the inner side of the noise reduction cover; and a connecting pipe, which is connected to the airbag and used to control the expansion and contraction of the airbag.
[0008] As a preferred technical solution of this utility model, the noise reduction cover is provided with fasteners inside, the fasteners include: a compression frame, the compression frame is slidably connected to the inner side of the noise reduction cover, the compression frame is sleeved on the reducer body, and the compression frame is located above the bolt one; and an airbag two, the top of the airbag two is fixed to the bottom of the airbag one, the bottom of the airbag two is fixed to the upper surface of the compression frame, and the airbag two is connected to the airbag one.
[0009] As a preferred embodiment of this utility model, the cross-section of the second airbag has a U-shaped structure.
[0010] As a preferred technical solution of this utility model, the side wall of the noise reduction cover is provided with a number of air holes.
[0011] As a preferred embodiment of this utility model, a rubber pad is fixed to the bottom of the base.
[0012] This utility model has the following beneficial effects:
[0013] 1. Enhanced vibration reduction performance: By setting an airbag between the reducer body and the noise reduction cover, and utilizing its deformation characteristics to absorb the vibration energy of the reducer body sidewall, the vibration generated during mechanical operation is effectively reduced. This not only reduces the noise level, but also reduces the wear of parts caused by vibration and extends the service life of the equipment.
[0014] 2. Improved tightness and stability: The design of the airbag II and the compression frame can apply additional pressure to the bolt I, enhancing the connection stability between the base and the installation position, preventing loosening or falling off due to long-term vibration, and improving the safety and reliability of the overall structure.
[0015] 3. Modular design facilitates maintenance: The modular design between the noise reduction cover and the reducer body makes maintenance and replacement more convenient. Repair or replacement operations can be completed without large-scale disassembly of the entire system, which greatly improves work efficiency and reduces maintenance costs.
[0016] 4. Improved working environment: By setting up an airbag and noise reduction cover, the operating noise of the reducer is effectively reduced, providing a more comfortable working environment for operators, helping to reduce the negative health effects of noise, and also meeting the environmental protection requirements of modern industry.
[0017] 5. High adaptability and high economic benefits: This design scheme is not only suitable for the manufacturing of new equipment, but also for the upgrading and transformation of existing reducers. It has high flexibility and economy, and can significantly improve equipment performance without significantly increasing costs. Attached Figure Description
[0018] Figure 1This is a schematic diagram of the structure of a low-vibration and noise-reducing worm gear reducer proposed in this utility model;
[0019] Figure 2 This is a three-dimensional cross-sectional view of the inside of the noise-canceling enclosure;
[0020] Figure 3 This is a schematic diagram of the noise reduction cover.
[0021] Figure 4 for Figure 2 Enlarged view of the structure at point A.
[0022] In the diagram: 1. Reducer body, 2. Cooling pipe 1, 3. Base, 4. Bolt 1, 5. Noise reduction cover, 6. Mounting frame, 7. Bolt 2, 8. Opening, 9. Airbag 1, 10. Connecting pipe, 11. Airbag 2, 12. Extrusion frame, 13. Cooling pipe 2, 14. Air hole, 15. Rubber pad. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figure 1-4 A low-vibration noise-reducing worm gear reducer includes a reducer body 1, a noise-reducing cover 5, a mounting frame 6, and shock absorbers. The reducer body 1 has a base 3 fixed to its bottom, which is fixed to the mounting position by bolt 4. A rubber pad 15 is fixed to the bottom of the base 3 to reduce the vibration at the bottom of the reducer body 1. A cooling pipe 2 is connected to the reducer body 1, and coolant flows through the cooling pipe 2 to cool the oil tank inside the reducer body 1. The reducer body 1 is located inside the noise-reducing cover 5. The noise-reducing cover 5 has several openings 8 for the shaft of the reducer body 1 to pass through. The end cap of the reducer body 1 passes through the openings 8, so that the inside of the openings 8 can support the end cap and reduce the vibration at the shaft position. Several air holes 14 are opened on the side wall of the noise-reducing cover 5 to ensure the heat dissipation of the reducer body 1. The mounting frame 6 is fixedly sleeved on the bottom of the side wall of the noise-reducing cover 5 and is fixed to the mounting position by bolt 7.
[0025] The shock absorber is located between the reducer body 1 and the noise reduction cover 5. The shock absorber includes an airbag 9 and a connecting pipe 10. The side wall of the airbag 9 is fixed to the inner side of the noise reduction cover 5. The connecting pipe 10 is connected to the airbag 9 and is used to control the expansion and contraction of the airbag 9. The side wall of the airbag 9 near the reducer body 1 can deform. After inflation, it can adapt to and adhere to the side wall of the reducer body 1, thereby absorbing the vibration energy of the side wall of the reducer body 1. The airbag 9 and the noise reduction cover 5 can reduce the noise of the reducer body 1 during operation and effectively improve the working environment. Furthermore, a cooling pipe 13 is fixedly installed inside the airbag 9. The cooling pipe 13 has a three-dimensional spiral structure and is located on the inner side of the airbag 9 away from the reducer body 1. Coolant is introduced into its interior. In this way, the cooling pipe 12 dissipates heat to the inside of the reducer body 1, and the cooling pipe 13 dissipates heat to the side wall of the reducer body 1, effectively preventing the setting of the airbag 9 and the noise reduction cover 5 from affecting the heat dissipation performance of the device.
[0026] Furthermore, the noise reduction cover 5 is equipped with fasteners inside, including a compression frame 12 and an airbag 11. The compression frame 12 is slidably connected to the inner side of the noise reduction cover 5. The compression frame 12 is sleeved on the reducer body 1 and is located above the bolt 4. The top of the airbag 11 is fixed to the bottom of the airbag 9, and the bottom of the airbag 11 is fixed to the upper surface of the compression frame 12. The airbag 11 is connected to the airbag 9. The cross-section of the airbag 11 is a U-shaped structure. The airbag 11 can expand or contract in the vertical direction. When the airbag 11 is inflated, the compression frame 12 can move down and apply pressure to the bolt 4 to maintain the stability of the connection between the base 3 and the installation position.
[0027] The specific working principle of this utility model is as follows:
[0028] The noise reduction cover 5 is placed on the reducer body 1 and fixed in place by the mounting frame 6 and bolt 7. At this time, the reducer body 1 is located inside the noise reduction cover 5. Then, the staff inflates the connecting pipe 10 with an air pump or other device. After the airbag 9 inflates, its sidewall can adapt to the shape of the sidewall of the reducer body 1 and deform. In this way, the airbag 9 is in contact with the sidewall of the reducer body 1. When the reducer body 1 vibrates, the airbag 9 deforms and absorbs the vibration energy. In addition, during the inflation of the airbag 9, the airbag 11 also inflates and expands. The airbag 11 extends downward and drives the compression frame 12 to move downward. The compression frame 12 can fit tightly with the bolt 4 and reinforce the position of the bolt 4. This design can effectively reduce vibration and noise, reduce the wear of the device, and the modular design between the noise reduction cover 5 and the reducer body 1 facilitates maintenance and replacement by the staff. It is also suitable for retrofitting existing reducer bodies 1 and has high economic benefits.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A low-vibration, noise-reducing worm gear reducer, characterized in that, include: The reducer body (1) has a base (3) fixed at the bottom. The base (3) is fixed to the installation position by bolt (4). A cooling pipe (2) is connected to the reducer body (1). Noise reduction cover (5), the reducer body (1) is located inside the noise reduction cover (5), the noise reduction cover (5) has several openings (8), the openings (8) allow the shaft of the reducer body (1) to pass through; The mounting frame (6) is fixedly sleeved on the bottom end of the side wall of the noise reduction cover (5), and the mounting frame (6) is fixed to the mounting position by bolt two (7); The shock absorber is installed between the reducer body (1) and the noise reduction cover (5).
2. The low-vibration, noise-reducing worm gear reducer according to claim 1, characterized in that, The shock absorber includes: Airbag 1 (9), the sidewall of which is fixed to the inner side of the noise reduction cover (5); A connecting pipe (10) is connected to the airbag (9) and is used to control the expansion and contraction of the airbag (9).
3. The low-vibration, noise-reducing worm gear reducer according to claim 2, characterized in that, The noise reduction cover (5) has fasteners inside, the fasteners including: The extrusion frame (12) is slidably connected to the inner side of the noise reduction cover (5). The extrusion frame (12) is sleeved on the reducer body (1) and the extrusion frame (12) is located above the bolt (4). Airbag 2 (11), the top of which is fixed to the bottom of airbag 1 (9), the bottom of which is fixed to the upper surface of the compression frame (12), and the airbag 2 (11) is connected to airbag 1 (9).
4. The low-vibration, noise-reducing worm gear reducer according to claim 3, characterized in that, The cross-section of the second airbag (11) is a U-shaped structure.
5. A low-vibration, noise-reducing worm gear reducer according to claim 4, characterized in that, The noise reduction cover (5) has several air holes (14) on its side wall.
6. The low-vibration, noise-reducing worm gear reducer according to claim 1, characterized in that, A rubber pad (15) is fixed to the bottom of the base (3).