Magnetic Powder Brake Working Principle And Basic Structure
Release Date:06/07/2019
The working principle of the magnetic powder brake and the magnetic powder clutch is similar. The gap between the rotor and the stator is filled with granular magnetic powder. The magnetic field is applied to the excitation coil on the stator by a DC power source to generate a magnetic field. After the magnetic powder is magnetized, a certain combination is formed between the stator and the rotor. Force, thus adding a corresponding braking torque to the rotor. It has the advantages of compact structure, high-speed response, no vibration, no noise, continuous sliding operation, good heat dissipation and high-precision torque control. It is widely used in braking, start control, industrial machinery inching and operation, and measurement. Power loading and other occasions.
The magnetic powder brake is composed of input shaft (active rotor), output shaft (driven rotor), alloy magnetic powder and yoke with excitation coil. The difference between the clutch and the clutch is that the driven rotor has been fixed. The following is the basic of the magnetic powder brake. Structure diagram:
1. The magnetic powder brake torque transmission and the braking induced magnet current are independent of other factors such as the rotational speed. This embodies the accuracy of the torque control and greatly improves the control accuracy.
2. The magnetic powder brake responds quickly, combining and separating without impact, vibration and noise.
3. The torque has a good linear relationship, which shows good torque controllability. By adjusting the excitation current, it is very convenient to control the transmission or braking torque.
4. Good heat dissipation performance and large heat capacity, allowing long-term operation under continuous slip conditions.
5. The idling torque is small, the combination performance is good, the operation is convenient, reliable and accurate.
6. The magnetic powder brake magnetic circuit has reasonable design, no leakage, small magnetic leakage, small volume, large torque, reliable operation, excellent performance and long service life.
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