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Magnetic field shielding device for machining of permanent magnet rotating shaft

A shielding device and machining technology, applied in the field of magnetic field shielding devices, can solve the problems of not being used to solve the precision of machining, not using it, etc., and achieve the effect of avoiding adverse effects, improving the accuracy and the quality of machining

Active Publication Date: 2017-03-29
ZHUZHOU GOFRONT EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the above-mentioned two patents all involve magnetic field shielding, none of the above-mentioned patents uses laminated silicon steel sheets and the gap between the silicon steel sheet layers and the permanent magnet rotor to shield the magnetic field, nor is it used to solve mechanical problems. The problem of machining accuracy

Method used

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  • Magnetic field shielding device for machining of permanent magnet rotating shaft
  • Magnetic field shielding device for machining of permanent magnet rotating shaft
  • Magnetic field shielding device for machining of permanent magnet rotating shaft

Examples

Experimental program
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Embodiment 1

[0027] Such as figure 1 , image 3 and Figure 4 As shown, the magnetic field shielding device 2 is set on the permanent magnet rotor 1 to shield the magnetic field generated by the permanent magnets 12 in the permanent magnet rotor 1 . The permanent magnet rotor 1 includes: a permanent magnet rotating shaft 11 , a permanent magnet 12 and an iron core 13 . The magnetic field shielding device 2 includes: a shielding tube 23 , a silicon steel sheet layer 22 , a shielding layer protective cover 21 , a screw 25 , a left end cap 26 and a right end cap 27 . Wherein the left end cap 26 and the right end cap 27 are arranged on the axial direction of the permanent magnet rotating shaft 11, and the shielding cylinder 23, the silicon steel sheet layer 22 and the shielding layer protective sleeve 21 are arranged on the circumferential direction of the permanent magnet rotating shaft 11 from outside to inside direction.

[0028] Such as figure 1 , figure 2 and image 3 As shown, th...

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Abstract

The invention provides a magnetic field shielding device for machining of a permanent magnet rotating shaft. A permanent magnet rotor comprises the permanent magnet rotating shaft, a permanent magnet, and an iron core, wherein the permanent magnet rotating shaft is sleeved by the permanent magnet and the iron core, the permanent magnet rotor is sleeved by the magnetic field shielding device, a silicon steel sheet layer is arranged in the magnetic field shielding device, and a gap is formed between the silicon steel sheet layer and the permanent magnet rotor. The magnetic field shielding device provided by the invention has the advantages that the outer side of the permanent magnet rotor is sleeved by the silicon steel sheet layer, and the gap is formed between the silicon steel sheet layer and the permanent magnet rotor, so that the magnetic induction intensity outside the silicon steel sheet layer can be greatly attenuated, a magnetic field generated by the rotor can be further shielded, and the processing precision and quality for the permanent magnet rotating shaft and the three-coordinate loss measurement precision are improved.

Description

technical field [0001] The invention relates to a magnetic field shielding device, in particular to a device for shielding the magnetic field by preventing the magnetic field from affecting a permanent magnet rotating shaft during processing. Background technique [0002] The processing of the permanent magnet shaft is to install the permanent magnet in place after the rough machining of the permanent magnet shaft is completed. In order to ensure the mechanical accuracy of the permanent magnet shaft, it is necessary to grind the permanent magnet shaft and send it to three-coordinate measurement. In the process of grinding and three-coordinate measurement, the permanent magnet rotor has been magnetized. When the machine tool grinds the permanent magnet shaft, the permanent magnet rotor will generate a magnetic force on the machine tool, which will affect the grinding process of the permanent magnet shaft by the machine tool. Precision and quality of processing. Therefore, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/03
CPCH02K15/03
Inventor 张锦何业建李庆锋晏斌李周林
Owner ZHUZHOU GOFRONT EQUIP
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