Authors: A.G. Garganeev, D.K. Kyui, E.I. Kashin, N.Yu. Sipaylova

Title of the article: Hysteresis couplings on the basis of Fe-Cr-Co material

Year: 2018, Issue: 4, Pages: 32-37

Index UDK: 621.825:621.318.12; 621.313.392

DOI: 10.26730/1816-4528-2018-4-33-38

Abstract: Among the variety of electromagnetic clutches that transmit the motion from the drive to the driven shaft of the electric drive technological mechanism, hysteresis clutches are particularly distinguished. Due to the peculiarities of the hysteresis energy conversion, the hysteresis clutches accelerate (or operate in the locked mode) with a constant torque, which is important for reliable operation of the technological mechanism. A deformable alloy of the Fe-Cr-Co type is a modern magnetic material with high mechanical and stable magnetic properties over a wide temperature range and with a high energy product value for hysteresis materials. Using the preliminary analysis of the magnetic properties and the calculation of the magnetic conductivities, the authors obtained the adjusting characteristics of the clutches for four structural schemes of the hysteresis clutches. For Fe-Cr-Co 22Х15KA hysteresis clutches it was possible to obtain opti-mum values of frequencies and inductions, at which the maximum values of hysteresis angle and relative magnetic per-meability can be reached. It was concluded that the combination of hysteresis energy conversion features, ease of imple-mentation and the possibility of torque control under high temperatures and peripheral velocities are a prerequisite for the alternative use of hysteresis clutches in electric drives that control the torque limit, for example, in pipeline valve control systems. When using the hysteresis clutch electric drives, there is no need to implement a sophisticated torque control algorithm for the drive motor.

Key words: clutches hysteresis torque speed control

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