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  • Electromagnetic particle clutch and brake

Article: 00026432

Electromagnetic particle clutch and brake

Technical description



The electromagnetic powder clutch and brake combine the ?exibility of hydraulic clutch with set stability of friction clutch (brake). Torque is transferred by special,alloy, dry ferromagnetic powder whose apparent viscosity can be changed bymodulating the current of electromagnetic coil. The clutch (brake) can withstand continuous slip (within the framework of its empirically set, rated thermal values) atprecisely speci?ed and stable value of torque which is determined by level ofelectromagnet excitation. Slip between input and output member of the clutchis not indispensable for transferring the torque and if load torque does not exceed the value of rotating torque for which the clutch (brake) has been excited, synchronous action will occur.

Conversely, if load torque exceeds level of excitation torque, slip will occur inabsolutely smooth manner with value of torque speci?ed in advance.

For all practical purposes, coe?cients of static and dynamic friction are practicallyidentical, output torque is independent of speed or slip speed.

Powder parameters are insensitive to temperature growth at working surfaces,and the clutch will all the time have the characteristic for which the torque transferredis directly proportional to current. It should be noted that utilization of dry powder instead of wet powder ensures better stability and accuracy of torque regulation.

Specifications

  • Operation: electromagnetic particle
  • Torque: Min.: 3 Nm (2.21 ft.lb)

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