MKD112B-024-KP0-BN 力士乐同步伺服电机

　　1、轴承

　　丝杠轴承座上的轴承磨损后间隙过大，或者轴承缺少润滑脂后轴承滚动体和保持架磨损严重造成负载过重。轴承磨损后间隙过大会造成电机转子中心和丝杠中心存在同轴度误差，使机械系统产生抖动。轴承滚动体和保持架磨损严重会造成摩擦力增加导致“堵转”，“堵转”在不至于导致“过载报警”的情况下，由于负载过重，会增加伺服系统的响应时间产生振动。

　　2、电机转子不平衡

　　电机转子的动平衡制造时有缺陷或使用后变差，就会产生形如“振动电机”一样的振动源。

　　3、转轴弯曲

　　转轴弯曲的情况类似于转子不平衡，除了会产生振动源也会产生电机转子中心和丝杠中心的同轴度误差，使机械传动系统产生抖动。

　　4、联轴器

　　联轴器制造缺陷或使用后磨损会造成联轴器两部分的同轴度误差，特别是使用铸造的刚性联轴器，由于本身的制造精度差，更容易产生同轴度误差导致振动。

　　5、导轨的平行度

　　导轨的平行度在制造时较差会导致伺服系统无法到达位置或无法停留在位置，这时伺服电机会不停的在寻找位置，使电机连续的振动。

　　6、丝杠与导轨平面的平行度误差

　　丝杠与导轨平面的平行度误差，丝杠在安装过程中与导轨所在平面有平行度误差也会使电机由于负载不均匀产生振动。

　　7、丝杠弯曲

　　丝杠弯曲后丝杠除了受到轴向推力外还会受到变化的径向力，弯曲大时径向力大，弯曲小时径向力小，同样这种不应该存在的径向力也会使机械传动系统产生振动。

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　　1. Bearing

　　After the bearing on the lead screw bearing seat is worn, the clearance is too large, or the bearing is lack of grease, the bearing rolling element and cage are seriously worn, resulting in excessive load. Excessive clearance after bearing wear causes coaxiality error between motor rotor center and lead screw center, resulting in jitter of mechanical system. The serious wear of bearing rolling element and cage will increase the friction and lead to "locked rotor". When the "locked rotor" does not lead to "overload alarm", the response time of servo system will be increased and vibration will be generated due to excessive load.

　　2. Motor rotor unbalance

　　When the dynamic balance of the motor rotor is defective in manufacturing or becomes worse after use, it will produce the same vibration source as the "vibrating motor".

　　3. Shaft bending

　　The bending of the rotating shaft is similar to the imbalance of the rotor. In addition to the vibration source, it will also produce the coaxiality error of the motor rotor center and the lead screw center, resulting in jitter of the mechanical transmission system.

　　4. Coupling

　　The manufacturing defect or wear after use of the coupling will cause the coaxiality error of the two parts of the coupling, especially the cast rigid coupling. Due to its poor manufacturing accuracy, it is easier to produce coaxiality error and cause vibration.

　　5. Parallelism of guide rail

　　The poor parallelism of the guide rail during manufacturing will lead to the servo system unable to reach or stay at the specified position. At this time, the servo motor will keep looking for the position to make the motor vibrate continuously.

　　6. Parallelism error between lead screw and guide rail plane

　　During the installation of the guide rail, there will be an error in the parallelism between the lead screw and the plane of the guide rail due to the vibration.

　　7. Lead screw bending

　　After the lead screw is bent, in addition to the axial thrust, the lead screw will also be subject to the changing radial force. When the bending is large, the radial force is large, and when the bending is small. Similarly, this kind of radial force that should not exist will also vibrate the mechanical transmission system.