Harmonic reducers are mainly used in aviation, aerospace, robotics, communication equipment, electronic equipment, medical equipment and other fields. Due to the basic components of harmonic reducers and the working principle of harmonic reducers, they are very similar to ordinary gear reducers. The big difference determines that it has the incomparable advantages of ordinary gear reducers, so do you know how to measure the accuracy of harmonic reducers?
When the input shaft changes from the positive direction to the reverse rotation in the working state, the lag of the output shaft in the angle of rotation. Idle distance less than or equal to 1 arc is divided into 1 level, which is represented by the number 1; the idle distance is greater than 1 arc minute and less than or equal to 3 arcs is divided into 2 levels, which is represented by the number 2; the idle distance is greater than 3 arc minutes and less than or equal to 6 arc is divided into 3 levels, represented by the number 3.
Transmission error less than or equal to 30 arc seconds belongs to high-precision harmonic reducer, which is represented by capital letter A, which belongs to A level; transmission error is greater than 30 arc second and less than or equal to 1 arc minute belongs to precision harmonic reducer, which is represented by capital letter B, belongs to the B grade; the transmission error is greater than 1 arc minute and less than or equal to 3 arc minutes belongs to the ordinary harmonic reducer, indicated by the capital letter C, belonging to the C grade.
The price of the harmonic reducer of different accuracy grades is also different. Therefore, when purchasing, you can't just look at the price without knowing some important performance parameters. You can only understand the parameters in detail to better choose the suitable harmonic reducer.