Magnetic Particle brake is an electromagnetic brake that uses the principle of magnetic Particle sliding energy dissipation to control the braking torque within a certain range. Magnetic Particle brake is mainly composed of rotor, stator, electromagnetic coil, magnetic Particle, junction box, etc.
The working principle of magnetic Particle brake is that when the excitation coil is energized, the magnetic field generated causes the magnetic Particle to form a chain structure, and these magneticParticle chains connect the inner rotor and the outer rotor, thereby transmitting torque. When the excitation coil is de-energized, the magnetic Particle is dispersed due to the centrifugal force, and there is no contact between the inner rotor and the outer rotor, allowing the inner rotor to rotate freely to achieve the braking effect.
Magnetic Particle brake has the characteristics of fast response speed, high frequency, compact structure, easy integration into the machine, good linearity, etc., and is suitable for fast working state and high frequency occasions.
Structure Composition Of Magnetic Particle Brake
- Outer rotor: opposite to the excitation coil, usually fixed on the transmission shaft, used to transmit torque.
- Inner rotor: located inside the outer rotor, cooperates with the outer rotor, and transmits torque through the magnetic Particle chain.
- Stator: Surrounding the rotor, forming a gap between the rotor and the magnetic Particle and other materials in it, braking occurs.
- Excitation coil: When powered on, a magnetic field is generated to attract and fix the magnetic Particle. The excitation coil controls the size and change of the braking torque in the brake to achieve the purpose of precise control of the brake.
- Magnetic Particle: The magnetic Particle filled between the stator and the rotor forms a magnetic Particle chain under the action of the magnetic field generated by the energized excitation coil to transmit torque. Receive the braking control signal from the electromagnetic coil to control the size of the braking torque.
- Frame and mechanical connection: Support the entire brake structure and connect with other mechanical parts.
- Junction box: The junction box is installed in front of the electromagnetic coil and is responsible for easy-to-maintain line wiring.
Conclusion
Magnetic Particle brake is a braking device that works on the electromagnetic principle. It has the characteristics of fast braking response speed, strong braking processing ability, high precision, etc. At the same time, because it will not wear out due to braking, its life can be extended. It is widely used in various fields such as printing machinery, packaging machinery, sewing equipment, textile machinery, etc.