NEWS CENTER

-

Classification

Classification



Industry News

Company News

Home page

How to improve the internal gear accuracy of the reducer

Time：

2022-05-25 15:47

Source：

1. Improve accuracy

Most of the current gears are hard-tooth surface gear reducers. In terms of improving the machining accuracy, the main reason is to use the grinding process. In terms of surface roughness, in order to realize the gear grinding process, a large number of equipment can be introduced, and the technical level of the equipment is also high. Among them, the German Höfler H400, or the German and H800 forming mills, are some of the best choices. Under the trial of advanced equipment, the precision level of the gear can be improved. Higher machining accuracy level can improve work stability. The improvement of stability can reduce unnecessary vibration. Therefore, the noise is reduced. Under the condition of design permission, a higher gear machining accuracy grade should be selected.

2. Improve roughness

Increase the surface roughness of the gear. Enter the gear parameters when grinding the gears. Outline of trimming gear. After grinding, the precision of the gear is improved, and the grade is increased, reaching the level of 5 precision. When the machining accuracy is improved, the noise during the gear meshing process is effectively reduced. Hardened gears are characteristic of gears. After grinding, the surface roughness of the gear will be higher than Ra0.8. With a reduced coefficient of friction, noise is also reduced. These two relationships are in an approximate linear increase relationship n,. In gears with different tooth surface roughness, the noise level is about 4db. In order to ensure the trimming and tooth direction requirements, it must be tested by the gear testing center. In terms of gear accuracy and gear tooth direction, the relevant standards are met. In general, after grinding, the roughness of the gear surface is improved and the noise is reduced.

3. Gear structure adjustment

According to the requirement of low noise, the gear structure is also a key step in the gear design. When designing, by increasing the tooth width of the gear, at the same time, reducing the pressure angle of the gear pitch, and trimming the chamfer of the tooth top of the gear, under the comprehensive and reasonable selection, the gear displacement coefficient is realized, and the gear structure design is finally completed.

Related News