Planetary reducer is a widely used traditional deceleration equipment, which mainly achieves transmission accuracy through the coordination between gears. Many people are not familiar with the return clearance of planetary reducers, so the editor of Zhuochuang Transmission Technology will give you a brief introduction.
Gap refers to the gap between gears, commonly known as return clearance or back clearance. The return clearance (also known as back clearance, clearance) in the neutral energy parameters of planetary reducers, the lower the value, the higher the transmission accuracy, the more expensive the price, and the higher the transmission efficiency (unit: arcmin, generally referred to as high-precision type below 3, and low precision type above 15).
Return clearance: Fix the input end so that the output end rotates clockwise and counterclockwise. When the output end is subjected to a positive or negative 2% rated torque, the output end of the reducer experiences a small angular displacement, which is called the return clearance, also known as the "back clearance". The unit is "arc minute", which is 1/60 of one degree.
The precision unit of planetary reducer is "arc minute":
Arcmin: One degree is divided into 60 arcmin (=60 Arcmin=60 ′). If the return clearance is marked as 1 arcmin, it means that when the reducer rotates one revolution, the angular deviation at the output end is 1/60 °. In practical applications, this angular deviation is related to the shaft diameter, b=2 · π· r · a °/360 °. That is to say, when the output radius is 500mm and the gearbox accuracy is jt=3 ′, i.e. a °=3/60, the deviation of the gearbox after one revolution is b=0.44mm.
The basic knowledge of the return clearance of planetary reducers is the above. The planetary reducers produced by Zhuochuang Transmission Technology have a single stage accuracy of no more than 2 arc minutes and a double stage accuracy of no more than 4 arc minutes. Overall, the accuracy is very high and the quality is also good.