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Bilateral flat-plate type linear motor

A linear motor and flat-plate technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of large inertial force, consumption, and limited effective thrust of linear motors, etc., to facilitate heat dissipation, simple pipeline layout, and improve continuous Effects on Thrust and Efficiency

Inactive Publication Date: 2013-08-07
BEIJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mover of the above two linear motors is the primary coil, and its moving parts still consume a lot of inertial force, and the effective thrust output by the linear motor is limited.

Method used

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  • Bilateral flat-plate type linear motor
  • Bilateral flat-plate type linear motor
  • Bilateral flat-plate type linear motor

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Embodiment Construction

[0017] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings. as attached image 3 As shown, the linear motor system is composed of a controller, a driver, and the bilateral flat linear motor of the present invention, and the grating ruler scale 1 and the grating ruler reading head are the attached image 3 The position feedback device shown.

[0018] According to the set motion plan, the controller sends corresponding command signals to the driver, and the driver amplifies the control signal, and outputs the power current to the coil I2 and coil II11 of the linear motor. The windings of coil I2 and coil II11 are arranged in a specific way. Under the action of three-phase alternating current, the stator coil generates a specific traveling wave magnetic field. In this traveling wave magnetic field, the linear motor mover 3 generates an axial thrust relative to the stator coil. Coil I2 and coil II11 are respectively...

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Abstract

A bilateral flat-plat type linear motor is characterized in that a moving-iron structure is adopted, and two groups of coils serve as stators to be arranged on two sides of a permanent magnet rotor symmetrically. Stator coils of the motor are connected to a three-phase alternating current to generate a specific travelling-wave magnetic field. Axial thrust corresponding to the stators is generated by the rotor under the action of the travelling-wave magnetic field. In the specific travelling-wave magnetic field, directions of thrust generated by the stators and the rotor are the same. Since the structure with a long rotor and short stators is adopted by the linear motor, the travelling-wave magnetic field generated by the stator coils is guaranteed to effectively drive the rotor to make reciprocating motion. Huge attraction between unilateral coils with iron cores and the permanent magnet rotor are mutually offset through the bilateral action structure. With no long cables and drag chains, the linear motor is compact in structure, mass of moving parts of the linear motor is light, and wasting inertia force is small. High thrust of the linear motor is realized, and effective thrust and working efficiency of the motor are increased.

Description

technical field [0001] The invention is a double-sided plate type linear motor. The stator power terminal inputs UVW three-phase alternating current to generate a traveling wave magnetic field. Under the action of the traveling wave magnetic field of the two stators, the mover generates a combined thrust relative to the stator. The invention relates to a double-sided flat-plate linear motor. The mover reciprocates under the drive of two sets of stator coils, and is especially suitable for heavy-load and high-acceleration applications. Background technique [0002] In heavy-load and high-acceleration applications, the linear motor has a large thrust requirement, and the continuous thrust of the motor requires 5000-10000N. CN101527494A discloses a unilateral flat-plate linear motor, which consists of a stator composed of a set of permanent magnet excitation modules, a mover composed of coils, several guide rails and sliders. The linear motor is an ironless type, so the thrust...

Claims

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Application Information

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IPC IPC(8): H02K41/03
Inventor 聂松林董武涛伍鹏廖伍举赵君鑫邓龙农
Owner BEIJING UNIV OF TECH
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