How to match the reducer according to the servo motor?This is a question that is often asked. To be precise, servo motors can be equipped with almost all reducers, but you must pay attention to the connecting flange.
In application, how should we match the reducer according to the servo motor?What precautions should be taken during the adaptation process?Technical engineers gave the following reference: four dimensions and two principles to match servo motors with reducers.
Two principles:
Principle 1: Small servo motors can be equipped with large reducers, but large motors are generally not suitable for small reducers;
Principle 2: For the same specifications, the higher the rigidity, the better the quality;
Four dimensions: torque, speed ratio, accuracy, specification
Torque: The rated torque of the reducer must be greater than or equal to the rated torque of the motor multiplied by the reduction ratio.Assuming that the rated torque of the motor is 5N.M and the reduction ratio is 10, then the rated torque of the selected reducer model must be greater than 5*10=50N.M.
Speed ratio: The reduction ratio of the reducer is roughly selected as the motor rated speed divided by the final output speed.For example, if the final output speed is 200RPM and the rated speed of the motor is 3000RPM, then the speed ratio of the reducer is preferably about 1:15.The final output speed depends on the working conditions.
Accuracy: The return clearance (backlash, clearance or rotational clearance) of the reducer depends on the specific work requirements. Generally speaking, the clearance used with the servo motor should not be greater than 20arcmin. Single-stage deceleration that can achieve less than or equal to 3arcmin is generally a high-end product. .
Specifications: The cross-sectional size of the reducer is generally similar to the cross-sectional size of the motor. It is best to refer to the instructions of the selected brand for other parameters. Technical samples generally indicate Selection steps and calculation examples.Specific models have different representations for each brand.Usually expressed roughly by the output flange size or cross-sectional size, there are generally 40/42, 50/60, 70/80, 90, 115/120, 142, 160, 180, 220, 240 and other specifications.
