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[Dry goods] Analyze the situation that the servo motor needs a reducer

Time: 2020-6-10 Click: 3543 times

Want to know the servo motorWhen do you need a reducer to be used together, it is necessary toLook at it from the needs of actual work applications and cost considerations.

1. Heavy load high precision: This is required when the load must be moved and precise positioning is required.Generally, automation equipment such as aviation, satellite, medical, military technology, wafer equipment, robots and so on.Their common feature is that the torque required to move the load often 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 a reducer.      

2. Increasing torque: The method of increasing the output torque may be to directly increase the output torque of the servo motor, but this method not only requires the use of an expensive and high-power servo motor, but also the motor has a stronger structure, and the increase in torque is positive. Compared with the increase in the control current, the use of a relatively large driver at this time, the increase in the specifications of power electronic components and related electromechanical equipment, will also greatly increase the cost of the control system.  

3. Improve performance: It is understood that improper matching of load inertia is one of the biggest reasons for the instability of servo control.For large load inertia, the inverse square of the reduction ratio can be used to adjust the best equivalent load inertia to obtain the best control response.So from this point of view, the planetary reducer is the best match for the control response of servo applications.    

4. Reduce equipment cost: From a cost point of view, assuming that a 0.4KW AC servo motor is used with a driver, it will cost one unit of equipment cost. If a 5KW AC servo motor is used with a servo driver, it will cost 15 units of cost. However, if a 0.4KW servo motor is used with The driver, with a set of reducers, can achieve the aforementioned 15 unit cost to complete, saving more than 50% in operating costs.     

Therefore, we can choose planetary reducer products with different installation methods according to different actual work requirements.Generally speaking, there are occasions requiring low speed, high torque, and high power density in machine operation, and most of them use planetary reducers.

Copyright: Shanghai Ever-Power Reducer Co., Ltd. Address: Desheng Road, Shanghai