YEJ brake motor working principle/OPERATING PRINCIPLE1.The rear end cover of the motor is equipped with a friction disc and an excitation coil made of asbestos wear-resistant material. When the motor loses power, the friction disc is tightly pressed against the processed plane of the rear end cover of the motor by the brake spring through a clamping plate, so that the brake disc generates a strong friction torque to achieve the purpose of braking. When the excitation coil is energized, electromagnetic attraction is generated to attract the spring clamping plate, and the clamping plate leaves the friction disc. The friction disc is released and the motor rotates flexibly. Depending on the power of the motor, the coil resistance is between tens and hundreds of ohms.
2. The DC brake cannot be directly connected to the AC power supply. The brake chuck is equipped with a winding coil, and the rated voltage of the winding is a low-voltage DC voltage. When working, the single-phase AC power supply must be rectified and provided to the chuck winding. Therefore, a rectifier is also installed in the brake motor junction box. The wiring method is shown in Figure 5 on page 25.