Correct use of hollow shaft magnetic powder brake

Tue Mar 29 2022 Klara

The correct use of the hollow shaft magnetic powder brake is as follows:

1. When the hollow shaft magnetic powder brake and clutch are used as continuous sliding for coiling and coiling, the product and service life will vary due to different operating conditions (relative sliding speed, etc.). But in general, the life of iron powder when the rated torque is reduced in the rated current is about 4500 to 7500 hours. However, in some cases, it cannot be used below the rated torque, so it can continue to be used, and the life can be further extended. However, even at the same slip duty rate, if the slip rotation speed, that is, the relative rotation speed is continuously high, the life tends to be shortened, so the setting should be made to reduce the relative rotation speed.

2. In order to prolong the life of iron powder, it is also a way to make the allowable sliding work rate more abundant during use. For example, if it is used at 50% of the allowable sliding duty, the life can be approximately doubled.

3. If the driven component is used as the input side, it will continue to idle for a long time, and the iron powder will be stirred, and the service life will be greatly reduced. Please try to avoid this method. If it is unavoidable in structure, please set the current to the weak excitation state when using it. When running at low-speed rotation (below 16RPM), when used for continuous operation such as tension control, it will produce stable and stable torque characteristics. However, in the case of intermittent rotation with idling, after the voltage is applied, the start of the torque may be delayed a little bit. This situation cannot be avoided. Please use it as follows.

Even when the winding is finished, continue to give weak excitation (the fixed current of 7-150%), so that the iron powder does not fall from the action surface; please increase the low rotation speed and increase it to 16RPM.

The magnetic powder brake should not be operated in a humid environment, so as not to damage the magnetic powder. After the magnetic powder brake is used, it needs to be maintained to ensure its service life. In addition, in the magnetic powder brake installation environment, please choose a dry and ventilated environment, to avoid humidity and dust. The hollow shaft magnetic powder brake needs to add a certain amount of magnetic powder. The magnetic powder brake uses the magnetic powder to transmit the torque. The quality of the magnetic powder determines the quality of the magnetic powder brake.

Correct use of hollow shaft magnetic powder brake