Mechanical and electrical braking is a method of using a mechanical mechanism to quickly shut down the motor for braking. Electromagnetic braking is a common mechanical brake. Electric braking is used to generate torque in the direction of speed, and the motor decelerates quickly. Generally speaking, Xi'an Sima motors require short-circuit braking, response braking, energy braking, DC braking, and energy feedback braking.

1. Emergency braking

For example, the electromagnetic resistance braking method is used for heavy machinery. B. For bicycles, speakers, electric drums, etc., the advantage is that the Cima motor is accurately positioned, avoiding accidents caused by sudden power failure of the motor. When the motor is severely braked, the fault will increase, so there is no need to perform braking.

2. Working principle of electromagnetic brake lining

The Cima motor must be directly connected to the stator winding and torque of the motor, and the motor is started through the DC bus.

The motor braking power increases as follows:

(1) Rapid shutdown battery technology rotation;

(2) The DC generator has high resistance and can maintain braking torque in the event of a fault.

(3) The working principle of the brake is as follows: When the three-phase asynchronous motor is directly connected to the motor, the direction of rotation is free.

(4) Even if there is a sudden power failure, the motor will make noise.

(5) The sudden reversal of the motor speed after connection is a temporary separation fault;

(6) When the motor fan is directly connected to the motor, the three-phase asynchronous motor has a phase fan whose rotation direction is consistent with the rotor direction.

(7) The motor type of the motor cover only works in one stage, that is, 0c is at the front and rear.

The brake resistor is part of the safe operation of the motor, and its performance and efficiency are less affected than the motor itself. In this case, the motor must be braked (not ignited), the motor will open when the power is off, and the Xi'an Sima motor will switch to the direction of rotation when the power is off.

When the motor is running well, the three-phase asynchronous motor is concentrated on the hinge, thereby generating a rotating magnetic field, which is introduced into the brake rotor together with the fixed hinge.

When the conical rotor starts and brakes, the motor speed pulse will cut off the rotor around the setting, thereby generating a voltage. Opposite to the size and direction of the voltage rotor, when the brake resistor is large and the braking torque is small, a voltage drop will occur.

The method of completing the rotor motor braking is to change the power supply sequence of the rotary switch to rebuild the reverse force, and the braking torque must be adjusted by the resistor motor.

Sima motors can be braked in three ways: mechanical braking and electrical braking.

Mechanical braking: The method of quickly braking the motor when the motor is turned off is called mechanical braking.