﻿ 伺服电机的型号怎么选择？ - 常见问答

0531-55536261

#### 伺服电机的型号怎么选择？

1. Verification of speed and encoder resolution.

2. Conversion of load moment on motor shaft and calculation of acceleration and deceleration moment.

3. Calculate the load inertia, inertia matching. As an example, the inertia matching of some products can reach 50 times, but the smaller the actual, the better the accuracy and response speed.

Fourth, the calculation and selection of regenerative resistance, for servo, generally more than 2 kw, external configuration.

Fifth, cable selection, twisted-pair shielded encoder cable, for Japanese products such as Anchuan servo absolute encoder is 6 cores, incremental is 4 cores.

In this paper, only the dynamic problem of motor is considered. For linear motion, it is expressed by velocity v (t), acceleration a (t) and required external force F (t), and for rotary motion, it is expressed by angular velocity (t), angular acceleration (t) and required torque T (t), which can be expressed as functions of time, independent of other factors. Obviously. The maximum power P motor of the motor should be greater than the peak power P required by the workload, but that is not enough. The power in physical sense includes two parts: torque and speed, but they are limited in the actual transmission mechanism. The peak value, T peak, represents the maximum value or peak value. The maximum speed of the motor determines the upper limit of the deceleration ratio of the reducer. The upper limit of n is equal to the peak value and the maximum/peak value. Similarly, the maximum torque of the motor determines the lower limit of the deceleration ratio. The lower limit of n is equal to the peak value of T/T motor. The maximum limit of n is greater than the upper limit of n, so the motor chosen is inappropriate. Conversely, a wide analogy of each motor can be used to determine the feasible range of transmission ratios between the upper and lower limits. The principle of selecting motor only by peak power is not sufficient, and the accurate calculation of transmission ratio is very complicated.

The above selection calculation is troublesome and sometimes necessary. The alternative method is:

A new selection principle is to separate the motor characteristics from the load characteristics and to express them graphically. This representation method makes it easier to check the feasibility of the driving device and compare different systems. In addition, it also provides a possible range of the transmission ratio. The advantages of this method are: it is suitable for all kinds of loads; it separates the characteristics of loads and motors; the parameters of power can be expressed graphically and applied to all kinds of motors. Therefore, it is no longer necessary to use a large number of analogies to check whether the motor can drive a specific load.

• 联系人：张经理
• 手机：18660772233（微信同号）
• 电 话：0531-55536261 / 0531-55536272
• 邮 箱：911510021@qq.com
• 地 址：山东济南市济南时代欧亚电子大厦一楼A111号