How To Control The Tension With Magnetic Powder Clutch And Motor Drag?

Motor-clutch-shaft connection, accelerating, decelerating and speed-increasing gear if necessary according to the required torque. The clutch must use the corresponding tension controller.

1. The tension requirement is not high, you can use manual tension controller

2. To go higher, add speed sensor, and automatic tension controller, use taper control

3. High requirements, plus tension sensor and automatic tension controller, closed loop control

The magnetic powder brake is based on the electromagnetic principle and uses magnetic powder to transmit torque. It has the characteristics of a substantially linear relationship between the exciting current and the transmission torque. It can transmit a certain amount of torque without being related to slip, and has the advantages of fast response speed, simple structure, no pollution, no noise, no shock vibration and energy saving. It is a multi-purpose, high-performance automatic control element. Has been widely used in papermaking, printing, plastics, rubber, textiles, printing and dyeing, wire and cable, metallurgy, tablet presses and other related winding processing industry unwinding and winding tension control. Magnetic powder brakes are also often used for dynamometer loading and braking of transmission machinery. Magnetic powder brakes and magnetic powder clutches are often paired.

Magnetic powder brake has the following major characteristics

1. Can control a wide range easily.

2, can achieve continuous sliding operation.

3. Stable torque can be obtained.

4. No tweet sound. The slipping phenomenon of the action surface occurs in the friction mode, but it does not appear here, and no connection sound is emitted, so the operation is quite quiet.

5. The heat capacity is very large. Due to the use of magnetic powder with excellent heat resistance and the ideal cooling method, it can be used safely even in the severe continuous sliding operation.

6, can achieve smooth continuous and driving state. Since the static friction coefficient and the dynamic friction coefficient are almost the same, vibration will not occur when fully connected, and it can respond to load acceleration and deceleration.