Vibration screen motor burning in the use of vibrating screen is a more common fault, then what causes such a fault easily occurred? Let's take a look at some of the more common causes of the burn.
The installation problem is that the vibration motor is equipped with a heavy eccentric block at both ends, such as vertical or oblique mounting, the bearing is axially subjected to the gravity of the eccentric block. If there is no special device in the vibrating motor of the vibrating screen, it will have an adverse effect on the bearing, thus shortening the service life. Preventive measures: 1, select vertical vibration motor; 2, avoid vertical or slant installation as far as possible.
The loosening of anchor bolt is one of the main troubles which causes vibration motor to burn out. Because of the special structure of vibration motor itself, the exciting force produced by the eccentric block on both ends of the vibration motor is 2000 times per minute to hit the anchor bolt, Because of the vibration of vibration motor itself, the anchor bolt is easy to loosen. Once a bolt looses, it will cause the other bolts to loosen or even break in a short time, thus burning down the motor. Preventive measures: ①frequently reinforce anchor bolt; ②The addition of anti-loosening devices; ③To ensure good contact between the floor and the motor floor, so that several anchor bolts are evenly stressed.
The problem of heat dissipation, ordinary motor--There is fan at the end, which makes the wind flow along the vertical bars above the case, not only radiates faster, but also clears the dust above, making the motor work in good condition. However, vibration motor has no fan to dissipate heat, and depends on natural cooling. In addition, the working environment is very bad. The dust is very large. The dust is easy to accumulate on the surface of the motor, which causes the high temperature inside and burn down the motor. Preventive measures: 1. Always remove dust from vibrating motor surface of vibrating screen and make it work under good conditions; During the design process, the surface of the vibration motor should be as smooth as possible, If the dust is not easy to accumulate, if working in the environment with large dust, the heat sink bar on the shell surface should be taken into account, because at this time, the heat sink bar not only can not play the role of heat dissipation, but also easy to cause dust accumulation, obstructing the heat dissipation of the motor.
The above three are more common vibration screen motor burn-out way, I hope that we should pay more attention to when using.