Linear motor

A linear motor, linear guide technology, applied in the direction of electric components, electromechanical devices, electrical components, etc., can solve the problems affecting the control performance of the linear motor, reduce the running stability of the motor, etc., to promote practical application, weaken the cogging reluctance effects, effects with high dynamics

Inactive Publication Date: 2005-08-17
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is only one row of magnetic steel in the distribution of traditional permanent magnet synchronous rotating motors and linear motors. See Ye Yunyue's "Linear Motor Principles and Applications" Page6~7, Me

Method used

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  • Linear motor
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Embodiment Construction

[0012] The implementation status of the present invention will be further described below in conjunction with the accompanying drawings.

[0013] Such as figure 1 and figure 2 As shown, the mover includes: mover iron core 1, coil winding and tooth slot 2, slide table top 7; the stator includes: magnetic steel 3, linear guide rail 4, base 5; there is an air gap between the mover and the stator 6.

[0014] Such as image 3 The stator of the linear motor shown uses magnets with dislocation distribution. In the figure, there are 3 magnets and 8 gaps between the magnets. The magnets are divided into two rows, and the two rows of magnets are offset by 1 slot width. Thereby, the sudden change of the magnetic field can be reduced, so as to weaken the influence of the reluctance effect and alleviate the thrust instability problem of the motor during the motion. The optimized design of the upper part of the cross-section of the magnetic steel is arc-shaped, so that the air gap magn...

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Abstract

This invention relates to line motor, which belongs to line motor field and used in permanent line motor process and its servo control. The invention is composed of stator and rotor, wherein the stator comprises magnetic steel, base socket and the magnetic steel is divided into two rows with one gear groove width crossed; the rotor comprises rotor iron core, coil set and gear groove, slide bench and the rotor is connected to the rotor and has gas gaps with the rotor supported by line rail to make the rotor move along line.

Description

technical field [0001] The invention belongs to the field of linear motors and is specifically applied to the manufacture of permanent magnet linear motors and its servo control. Background technique [0002] With the development of precision manufacturing technology and numerical control technology, high-speed, high-efficiency, and high-precision have become the development direction of current CNC machine tools. Occupies a unique position in precision machining. There is only one row of magnetic steel in the distribution of traditional permanent magnet synchronous rotating motors and linear motors. See Ye Yunyue's "Linear Motor Principles and Applications" Page6~7, Mechanical Industry Press, there is a cogging reluctance effect in the control process, The stability of motor operation is reduced, which seriously affects the control performance of this type of linear motor. Contents of the invention [0003] The invention proposes a linear motor, which optimizes the stat...

Claims

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Application Information

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IPC IPC(8): H02K1/17H02K41/02
Inventor 艾武金振荣陈幼平张代林刘凌云杜志强常雪峰谢经明余文勇
Owner HUAZHONG UNIV OF SCI & TECH
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