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Cam indexer motor reduction ratio

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Update time : 2019-05-05 20:13:19
The cam indexer is driven by a motor. Commonly used are gear reduction motors, stepper motors, servo motors, etc. So, how do you choose the reduction ratio of the motor?
The speed ratio of the motor used by the splitter is the speed change. Because of the choice of the speed of the motor, considering the load and torque of the splitter, the speed of the selecte motor is high and cannot meet the requirements of use. It is necessary to adjust the speed to The required speed can be, for example, a parameter with a reduction ratio of 1:20, then the torque of its output shaft is theoretically increased by 20 times and the speed is reduced by 20 times. If the output of the motor is 3000 rpm, Then, after passing through the reducer, the speed is 150 rpm.

The splitter uses the reduction ratio of the stepper motor. Theoretically, the gear ratio of the motor reducer refers to the ratio of the instantaneous input speed to the output speed in the speed reduction mechanism. The symbol “i” indicates the reduction ratio: for example, the reduction ratio is 1/ 64, that is, if the stepping motor outputs a torque of 1 N.m, the output torque converted by the reduction gear box is 64 N.m, and of course the rotation speed is reduced to 1/64 of the original rotation speed. The general deceleration ratio is expressed by the ratio of the input speed and the output speed with "1" as the denominator. If the input speed is 1500r/min and the output speed is 25r/min, then the reduction ratio is: i= 60:1.

The deceleration ratio of the general deceleration mechanism used in the motor is the actual reduction ratio, but some special reducers such as cycloidal reducer or harmonic reducer are sometimes rounded by rounding method, and do not denominator, such as the actual reduction ratio It is 28.13, and the label is generally marked 28.