How much do you know about the performance of brake motors?

Publish Time:

2020-07-08

The rear end cover of the brake motor is equipped with an asbestos wear-resistant material friction disc and an excitation coil. When the motor is de-energized, the friction disc is pressed tightly against the machined plane on the rear end cover of the motor by the brake spring through the block pressure plate, thus generating a strong frictional torque on the brake disc to achieve braking. When the excitation coil is energized, an electromagnetic force is generated, which attracts the spring pressure plate, causing the pressure plate to leave the friction disc. This releases the friction disc, allowing the motor to rotate freely. Depending on the motor power, the coil resistance is between tens and hundreds of ohms. The braking time of the brake motor is the total time from the moment the motor and brake stop receiving power to the moment the shaft stops. Generally, for motors with frame sizes 63-80, the braking time is 0.5 seconds; for motors with frame sizes 90-132, the braking time is 1 second; and for motors with frame sizes 160-180, the braking time is 2 seconds. Brake motors are mainly used for vertical motion transmission. The brake only needs to be externally connected to 12-24VDC. When the stepper motor is de-energized, the brake is activated immediately, which helps to fix the motor shaft and ensures that the stepper motor remains locked when de-energized. Currently, 57, 86, and 110 series two-phase or three-phase motors can be equipped with brake assemblies.

The braking time of the brake motor is the total time from the moment the motor and brake are de-energized to the moment the shaft stops. Generally, for motors with frame sizes 63~80, the braking time is 0.5 seconds; for motors with frame sizes 90~132, the braking time is 1 second; and for motors with frame sizes 160~180, the braking time is 2 seconds.

Brake motors are mainly suitable for vertical motion transmission. The brake only requires an external 12~24VDC power supply. When the stepper motor is de-energized, the brake is activated immediately, fixing the motor shaft and ensuring that the stepper motor remains locked when de-energized. Currently, 57, 86, and 110 series two-phase or three-phase motors can be equipped with brake assemblies.

In the field of industrial automation and mechanical equipment, brakes are core components that ensure safe operation and precise control. Their performance directly affects production efficiency and personnel safety. AC brakes, as braking devices driven by AC power, play an irreplaceable role in various industrial scenarios due to their high efficiency, reliability, and rapid response.

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