Magnetic powder brake is an excellent automatic control element

Magnetic particle brake is a kind of automatic control element with superior performance. It uses the magnetic powder as the working medium and uses the magnetizing current as the control method to achieve the purpose of controlling the braking or transmitting the torque. The output torque is in a good linear relationship with the excimer current and has nothing to do with the speed or slip, and it has the advantages of quick response and simple structure. Widely used in printing, packaging, paper and paper processing, printing and dyeing, textile, cable, wire, rubber, leather, metal foil and other coiling device tension control system. Magnetic particle brakes can also be used as analog loaders and are widely used for power and efficiency measurement of power and transmission machinery such as motors, internal combustion engines, and transmissions.
The magnetic powder brake is a combination of a transmission unit (input shaft) and a follower unit (output shaft). The space between the two groups of cells is filled with granular magnetic powder (approximately 40 microns in product). When the magnetic coil is not conductive, the torque will not be transmitted from the transmission shaft to the driven shaft. However, if the coil is electromagnetically energized, the magnetic powder attracts the magnetic powder to generate a hardening phenomenon, and the torque is transmitted between successive sliding movements. .