Working Principle And Introduction Of Magnetic Powder Clutch

The magnetic powder clutch is a combination of a transmission unit (input shaft) and a driven unit (output shaft). The space between the two sets of cells is filled with granular magnetic powder (approximately 40 microns in volume). When the magnetic coil is not conducting, the torque will not be transmitted from the transmission shaft to the driven shaft. However, if the coil is electromagnetically energized, the magnetic powder will attract hardening due to the action of the magnetic force, and the torque will be transmitted between successive slidings. .

The powder clutch is an excellent automatic control element. It uses magnetic powder as the working medium and uses the excitation current as the control means to achieve the purpose of controlling braking or transmitting and transferring. Its output transition has a good linear relationship with the excitation current and has nothing to do with the speed or slip, and has the advantages of fast response and simple structure.

The characteristics of the magnetic powder clutch are as follows:

(1) High precision torque control

The torque control range is very wide, and the control precision is high, and the torque and the exciting current are correctly proportional, and high-precision control can be realized.

(2) Superior durability and long life

It adopts super-alloy magnetic powder with high heat resistance, wear resistance, oxidation resistance and corrosion resistance, and has a long service life.

(3) Constant torque characteristics of superior stability

The magnetic powder has good magnetic characteristics, and the bonding force between the particles is stable, the sliding torque is very stable, and it has no relationship with the relative number of revolutions to maintain a constant torque.

(4) Continuous sliding operation

 The heat-dissipating effect is excellent, and the cooling structure with uniform heat distortion and the high heat resistance of the magnetic powder allow the connection and the braking power and the sliding power to be large, and the sliding operation can be smoothly performed without causing vibration.

(5) The connection is smooth and has no impact

The impact at the time of connection is extremely small, and it can start and stop smoothly without impact. Moreover, the resistance torque is extremely small and does not cause useless heat.

(6) Suitable for high frequency operation

Respond to agile and fast and special heat dissipation structure, suitable for high frequency operation.

(7) Lightweight, maintenance-free, long life

The type is simple and lightweight, using high-temperature coils and special grease bearings, and wear-resistant special treatment for the armature that is easy to wear, prolonging the service life.

Magnetic powder clutches are widely used in wire rope, cable, packaging, printing, paper and paper processing, textile, rubber and leather, metal foil strip processing and other automatic tension control systems for coiling devices. For more information, please pay attention to the PRE powder clutch company website: https://www.pre-webguidesystem.com/powder-clutch/