Is The Torque Of The Magnetic Powder Brake Related To The Rotational Speed?

The magnetic powder brake is based on the electromagnetic principle and uses magnetic powder to transmit torque. It has the characteristics that the excitation current and the transmission torque are basically linear. It can transmit a certain torque regardless of the slip, and has nothing to do with the speed. It is only related to the magnitude of the excitation current of the brake. The larger the current, the larger the magnetic field strength of the magnetic powder in the brake, and the more obvious the braking effect.

Therefore, as long as the magnitude of the excitation current is changed, the torque can be easily controlled. Under normal conditions, in the range of 5% to 100% of the rated torque, the mainframe wheel axle flaw detector, the excitation current and the torque it transmits are A proportional linear relationship.

Magnetic powder brake application range

Due to the above characteristics, magnetic powder brakes have been widely used in papermaking, printing, plastics, rubber, textile, printing and dyeing, wire and cable, metallurgy and other related winding and winding tension control. In addition, magnetic powder clutch It can be used for buffer starting, overload protection, speed regulation, etc. Magnetic powder brakes are also often used for dynamometer loading and braking of transmission machinery.

Stable slip torque

When the excitation current remains unchanged, the torque transmitted by the magnetic powder brake is not affected by the differential speed (slip speed) between the transmission member and the driven member, that is, there is no difference between the static torque and the dynamic torque. Therefore, the constant rotation can be stably transmitted. Moment. If this feature is applied to tension control, the user can adjust and transmit the required torque accurately by adjusting the magnitude of the excitation current. What is the tourmaline steaming room and the large valve flaw detector, so that the control volume can be easily and effectively achieved. The purpose of the material tension.