A large permanent magnet rotor automatic magnetizer

Abstract

The invention discloses an automatic magnetizer for a large-sized permanent magnet rotor, and belongs to the field of magnetizing equipment. The automatic magnetizer comprises an electrical cabinet, a cooling device and a magnetizing table, the electrical cabinet is connected with the magnetizing table through a cable, the cooling device is connected with a magnetizing coil of the magnetizing table through a water pipe and used for cooling the magnetizing coil, the electrical cabinet comprises a control cabinet and a capacitor cabinet, a PLC (programmable logic controller) is placed in the control cabinet and used for controlling control units in the automatic magnetizer to run, the magnetizing table comprises a multi-pole magnetizing coil, a magnetic-flux measurement coil, an automatic rotor position seeking device, a rotor lifting device and a trolley, the multi-pole magnetizing coil corresponds to the permanent magnet rotor to be magnetized, the magnetic-flux measurement coil is used for measuring whether the rotor is saturate or not, and the trolley is used for conveying the rotor. The rotor can be magnetized once by the automatic magnetizer.

Description

technical field [0001] The invention belongs to the field of magnetizing equipment, in particular to a large-scale permanent magnet rotor automatic magnetizing machine. Background technique [0002] In order to meet the needs of high-power and high-energy-efficiency motors, the motor rotor adopts a multi-pole oblique design, and multiple pieces of NdFeB with strong coercive force are packaged on the rotor. Magnetization before packaging will make packaging very difficult. For magnetism, there is only one-time magnetization equipment for 2-4 pole power motors, and there is no large-scale multi-pole structure NdFeB permanent magnet rotor magnetizer. Contents of the invention [0003] The object of the present invention is to overcome the above defects and provide a magnetizing device capable of magnetizing a large-size rare earth permanent magnet rotor at one time. [0004] For this reason, the present invention provides the following technical solutions: a large-scale pe...

AI Technical Summary

Problems solved by technology

[0002] In order to meet the needs of high-power and high-energy-efficiency motors, the motor rotor adopts a multi-pole oblique design, and multiple pieces of NdFeB with strong coercive force are packaged on the rotor. Magnetization before packaging will make packaging very difficult. For magnetism, there is only one-time magnetization equipment for 2-4 pole power motors, and there is no large-scale multi-pole structure NdFeB permanent magnet rotor magnetizer

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