1. Load and precision: This is necessary when a load has to be moved and precise positioning is required.Generally speaking, such automated equipment is aviation, satellite, medical, military science and technology, wafer equipment, robotics, etc.Their common feature is that the torque required to move the load far exceeds the torque capacity of the servo motor itself.This problem can be effectively solved by increasing the output torque of the servo motor through the planetary reducer. 2. Boosting torque: The way to boost the output torque can be to directly increase the output torque of the servo motor, but this way can not only use expensive high-end power servo motors, but also use the strongest structure.The increase in torque is proportional to the increase in control current.At this time, using a relatively high-end driver, increasing the specifications of power electronic components and related electromechanical equipment, will also increase the cost of the control system. 3. Improve use efficiency: In theory, increasing the power of the servo motor is also a way to increase the output torque.By increasing the speed of the servo motor twice, the power density of the servo system can be doubled without increasing the specification of the control system components such as the driver, ie, without adding additional cost.This requires the matching of the servo planetary reducer to achieve the purpose of torque increase.Therefore, the development of the * power servo motor must be combined with the application of the servo planetary reducer instead of omitting it. 4. Improve * service performance: It is understood that improper matching of load inertia is one of the reasons for the instability of servo control.For the load inertia*, the inverse square of the reduction ratio can be used to tune the *good equivalent load inertia for the *good control response.Therefore, from this point of view, planetary gearboxes are a good match for the control response of servo applications. 5. Increase the service life of the equipment: the planetary reducer can also effectively solve the attenuation of the low-speed control characteristics of the motor.Due to the reduction of speed, the controllability of the servo motor will be attenuated to a certain extent, especially in the stability of signal acquisition and low-speed control.Therefore, using a reducer can make the motor have a higher speed. 6. Reduce equipment cost: From the perspective of cost, assuming that a 0.4kW AC servo motor with a driver needs to consume one equipment cost, a 5kW AC servo motor with a driver must consume 15 equipment.However, if the 0.4kW servo motor and driver are used together with a set of planetary reducers, the above can be done at a cost of 15 to over 50% of the operating cost.Therefore, users decide to choose servo planetary reducers according to different processing needs.Generally speaking, in the operation of the machine, there are requirements for low speed, maximum torque and maximum power density, and most of them use planetary gear reducers.The principle and basic structure of planetary reducer consists of input sun gear, planetary gear, output planetary arm and fixed internal gear ring.The working principle of the planetary reducer is that the power is input from the Mada end to the sun gear, and the sun gear will drive the planetary gear on the planetary boom.In addition to rotating about its own axis, the star gear drives the planetary arm to rotate about the center of the transmission system.
