Servo motor shaft release key precautions
In recent years, many servo drives, servo motor sales dealers, agents, major sales personnel, as well as those engaged in industrial control, automation, CNC machine tool technology have often met, many new servo motors are sold out, and soon The fault has returned to repair. What is the reason? Since it is often through a lot of people, it is not easy to understand clearly. It is necessary to follow up and learn in detail. It is basically caused by negligence and improper operation. Today, I will talk about the disassembly of the motor shaft, because the motor failure has a large proportion, and there should be no such problem at all.
Servo motor is different from traditional ordinary motor and different from variable frequency motor. The servo motor is an encoder that must be equipped with motor rotation information feedback on the motor, and the encoder of the home is often an optical system. As we all know, the accuracy of the optical system is also high, so the servo motor is the most important and most important installation specification. That is, the motor can't be tapped, and the motor shaft can be pulled. Because the motor moves slightly, it may cause the servo motor to malfunction. This should become a common sense for people to face the servo motor.
In reality, our domestic knowledge about servo system servo motors is basically not available. Due to the backwardness of our country's technology, we still rely heavily on foreign servo technology servo products, which not only causes technical training for our technicians to be negatively treated abroad. It is also easy to form their technical protection barriers, and they are even more reluctant to teach us more knowledge. Together with our four- or five-year-old we basically have to use their designed automation system, it has led us to adopt it in recent years. When the servo system and servo technology are used to develop and improve the precision quality of industrial control equipment, our development engineers are still very unregulated about servo knowledge. It’s just a period of technical disconnection. As we spontaneously engage in the development of automation and industrial control systems, we have to use money to buy lessons. This may be the new machine failure rate encountered by major servo sales dealers in the past five years. A sudden increase in the syndrome.
Well, I have to talk nonsense. At this point, I think many engineers also understand that the servo motor must be disassembled with special tools to ensure that the motor shaft is displaced. The ultimate goal of this article is to hope that the majority of servo users can be reminded, don't be fortunate, and get rid of the shaft keys with bare hands. Special tools must be used to avoid damage to the motor. The drawing is an illustration of removing the motor shaft key with a puller.
Of course, it is better to use a motor shaft pull key tool, which is not difficult for us to be a mechanical engineer. I visited a customer and he made a very useful tool, as shown in the figure. The puller is made into a cylinder, and the buckle is made into a circular hole with a right shaft diameter. The circular hole is opened with a groove that can pass the shaft key. When the key is removed, the set is turned to the shaft, and the key is turned to a primary card. Position, then twist the top wire, it is convenient to remove the key.
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