Air-cooled permanent magnet eddy-current flexible speed regulation device for preventing overheating

Abstract

The invention relates to the field of permanent magnet transmission technologies, in particular to an air-cooled permanent magnet eddy-current flexible speed regulation device for preventing overheating, which comprises a permanent magnet rotor, a conductor rotor, a spindle and an air gap adjustment mechanism, wherein a permanent magnet disc I, a permanent magnet disc II and an intermediate disc are arranged in the permanent magnet; a conductor disc I, a conductor disc II and a spacer support are arranged in the conductor rotor; main cooling fins are both arranged on the back lateral surfaces of the conductor disc I and the conductor disc II; conductors are both arranged on the inner lateral surfaces of the conductor disc I and the conductor disc II. The device is characterized in that auxiliary cooling fins are respectively arranged on the opposite inner lateral surfaces of the conductor disc I and the conductor disc II; and the auxiliary cooling fins are arranged on a non-coupling area of the inner edges of the conductors. In comparison with the prior art, the device has the advantages that (1) the heat dissipation performance of an air-cooled permanent magnet product is improved and the application range of the high-power air-cooled permanent magnet product is extended; and (2) the temperature measuring accuracy rate is improved, the timely alarm and machine halt are realized, and the safety production of equipment is guaranteed.

Description

technical field [0001] The invention relates to the technical field of permanent magnet transmission, in particular to an air-cooled permanent magnet eddy current flexible speed regulating device for preventing overheating. Background technique [0002] Permanent magnet transmission technology is a torque transmission scheme that realizes the torque transmission between the motor and the load without mechanical connection through conductors and permanent magnets. When the conductor moves in the magnetic field of the permanent magnet, an eddy current will be generated in the conductor, and the magnetic field generated by the eddy current and the The magnetic fields of the permanent magnets interact to form the transmission of torque. The main features of this technology are: 1. Energy-saving effect; 2. It allows a large installation alignment error (up to 5mm), which can simplify the installation and debugging process; 3. Improve the starting ability of the motor and reduce s...

AI Technical Summary

Problems solved by technology

The heat dissipation performance of permanent magnet eddy current transmission has become the bottleneck of the development of permanent magnet transmission technology, which seriously restricts the development and application of high-power permanent magnet eddy current transmission products, and needs to be solved urgently

[0004] In addition, the conventional method of temperature measurement at the edge of the conductor disk cannot guarantee the accuracy of temperature measurement. The non-contact temperature measurement device is often inaccurate due to the deviation of the installation position or vibration, and the high temperature alarm cannot be issued in time and the shutdown can be stopped in time, resulting in burning the disk. Accidents, there are major production safety hazards

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