1. Use materials with high vibration attenuation rates. For gears with light load and low rotation, plastic gears are a good choice, but attention should be paid to the problem of temperature rise. Cast iron gears are more effective at reducing noise than steel gears.
2. Proper lubrication requires sufficient lubrication. Lubricating oil with high viscosity has lower noise.
3. The rotation speed of low-speed operation and low-load gears should be kept as low as possible, and the load should be reduced as much as possible to reduce noise.
4. Use high-precision gears to reduce the pitch error, tooth shape error, tooth groove deviation, and tooth rib error, and the noise will become smaller. Grinding the tooth surface can not only improve the gear and various precisions, but also improve the tooth surface roughness. So this has a very good effect on reducing noise.
5. The ideal tooth surface roughness can be achieved by grinding, rubbing and grinding the smooth tooth surface. In addition, warm-up operation in oil for a period of time can also improve the tooth surface roughness, which can reduce noise.
6. Correct tooth surface contact. Implement tooth surface crowning processing or end cutting processing to prevent single piece contact, and the noise will naturally be reduced. Proper tooth shaping is also effective in reducing noise. Eliminate bumps or scratches on the tooth surface.
7. Appropriate backlash - generally a more balanced load, slightly larger backlash is also effective in reducing noise.
