The electromagnetic brake 3 phase motor consists of three phase asynchronous motor and brake. It is the sub-series of three phase asynchronous motor. The brake can be divided into two types: manually release and bolt release. All the brake motors produced by ZHOUYI are AC brake motors. The combination of brake and variable frequency is widely adopted by the actuator. All the electric motors produced by ZHOUYI can be equipped with frequency converter. But it should be noted that when the brake is equipped with a frequency converter, an additional axial flow fan is necessary.
The electromagnetic brake 3 phase motor is suitable for lifter, winding engine, gate operator and some other equipment sets.
The electromagnetic brake 3 phase motor has the following features:
1. Large braking torque;
2. Small temperature rise;
3. Simple installation and debugging;
4. Fast braking response speed, high reliability and strong universality.
1. Braking time
The braking time (t) of the brake motor is the time period from the cut-off of supply of electric motor and brake to the fully stop of the shaft. Generally, the brake time of motor of which the frame No. is 63~80 is 0.5 seconds; the brake time of motor of which the frame No. is 90~132 is 1 second; and the brake time of motor of which the frame No. is 160~180 is 2 seconds.
2. Adjustment and maintenance
During the use of the brake motor, the gap between friction disk and the back cover of the electric motor will get larger along with the increasing of the braking frequency because of the abrasion of the friction disk. The gap directly decides the braking torque of the electric motor during the long-term operation. During the adjustment, the gap should not be too small, otherwise the motor will burn down because the incomplete separation of friction plate of the friction disk and back cover of the electric motor can not be realized. Meanwhile, the gap should not be too large, otherwise the keep plate can not press tightly or there will be strong noise during the tight pressing.
The gap between keep plate and electromagnetic chuck is decided by the brake. Generally, the gap of the motor of which the frame No. is 63~112 is 0.25mm～0.30mm; the gap of the motor of which the frame No. is 132~180 is 0.50mm～0.80mm.
3. Variable frequency operation
All the asynchronous motor produced by ZHOUYI can be equipped with frequency converter. But the brake of these motors should be independently equipped with stable working power supply instead of being connected with the power supply terminal of the electric motor in parallel. Otherwise the brake can not work properly. It should be noted that when the brake is equipped with a frequency converter, an additional axial flow fan is necessary. Meanwhile, this axial flow fan should also be equipped with an independent power supply and it should be controlled independently. The max frequency of the asynchronous motors produced by ZHOUYI is 60Hz. If you have special requirements, please consult us directly.
ZHOUYI is a professional electromagnetic brake motor manufacturer and supplier, specializes in design and manufacture industrial electric motors, speed reducers and gearboxes since 1990. With manufacturing process in accordance to IEC standard, our company is committed to providing quality 3 phase electric motors with a variety of model selections and configurations, to meet specific needs for your equipment and machines.