The reducer is a key part of the industrial robot, accounting for about 32% to 37% of the production cost of the entire industrial robot. With the increase in the output of industrial robots, the demand for speed reducers will also increase rapidly. It usually needs to use four to six reducers, mainly RV reducers, while harmonic reducers are used less, even if it is estimated by four reducers.
Generally, industrial robots will repeat the same movement to complete the process task. In order to make the industrial robot complete the process tasks reliably and ensure the quality of the process, the accuracy of the industrial robot itself is put forward higher requirements. If you want to improve the accuracy of industrial robots, you can use a reducer to improve it.
The role of reducer in industrial robots is to increase the output torque. In the case of heavy load, it is not worthwhile to blindly increase the output power of the motor. We can improve the output torque by reducing the speed of the reducer in the appropriate speed range. In addition, when the motor operates at low frequency, it is easy to generate heat and vibration. For industrial robots that work for a long time, it is not conducive to ensure its own accuracy and reliable operation. The existence of a reducer can make the motor operate at a suitable speed and reduce the speed to the speed required by its various parts, which not only improves the output torque, but also improves the rigidity of the mechanical body.
Source: Jiezhong Robot