What are the noise reduction measures for planetary gear reducers?

The planetary gear reducer is a kind of transmission equipment with a wide range of uses. It is inevitable that it will make noise during operation. So what are the noise reduction measures for the planetary gear reducer?

1. Properly increase the helix angle of the driving gear.As the helix angle increases, so does the gear overlap, which will greatly reduce noise.It should be noted that the appropriate helix angle needs to be selected.

2. Increase the tooth surface width of the driven gear: If the tooth surface width increases, the meshing degree of the gears will also increase, the relative stability will also be enhanced, and the noise reduction effect will be better.

3. Improve the gear precision: Improve the gear precision, which will greatly improve the gear surface roughness, thereby improving the gear movement precision and effectively reducing noise.

4. Reasonable selection of tooth surface hardness and gear backlash: When the gear backlash is less than 0.04 mm, the noise is low, so the gear backlash can be appropriately reduced to reduce noise.In addition, when the hardness of the driving gear is 2-3HBC higher than that of the driven gear, the noise can be effectively reduced.

5. Special treatment for the tooth surface: Under the conditions of the gear strength design, high damping cast iron or some non-metallic materials can be used to process the gear, and the tooth surface can also be coated with non-metallic materials for treatment.Since the material has good plasticity and toughness, it can effectively reduce noise by reducing vibration and impact.

6. Improve the lubrication conditions of the gear: the lubrication of the gear should be based on the peripheral speed of the gear to select the appropriate lubrication method and lubricant to effectively reduce the noise.Note that lubrication should be combined with circulating oil lubrication.

7. Reasonably design the structure of the gear box: a reasonable gear box structure can improve the sealing performance of the gear box and make it have a good noise reduction effect.In the case of high noise requirements, damping materials, such as foam plastics, can be placed on the surface of the box to reduce the noise of the reducer.