Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Linear motor

A technology of linear motors and linear guide rails, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve problems affecting the control performance of linear motors and reduce the stability of motor operation, so as to promote practical applications and weaken cogging reluctance effect, the effect of mitigating thrust fluctuations

Inactive Publication Date: 2010-05-05
HUAZHONG UNIV OF SCI & TECH
View PDF5 Cites 0 Cited by
  • 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, Mechanical Industry Press, there is a cogging reluctance effect in the control process, It reduces the stability of the motor operation and seriously affects the control performance of this type of linear motor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Linear motor
  • Linear motor
  • Linear motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

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

[0013] like 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] like 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 magnetic f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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. Occupy 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 stator...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02K41/02H02K1/17
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com