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A Hybrid Excitation Switched Flux Linear Motor for Axial Feed

A hybrid excitation and switching magnetic flux technology, applied in electrical components, electromechanical devices, propulsion systems, etc., can solve the problems of complex motor circuit connection, large amount of permanent magnet magnets, and easy damage of magnets, so as to achieve convenient and simple assembly, The effect of good working performance and low inertia

Inactive Publication Date: 2016-08-24
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The linear motor is usually divided into two structures, the moving coil type and the moving magnet type. The moving coil structure motor has problems such as large amount of permanent magnet steel and complicated motor circuit connection; the moving magnet structure motor has large copper consumption, low efficiency, and magnetic steel fragile

Method used

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  • A Hybrid Excitation Switched Flux Linear Motor for Axial Feed
  • A Hybrid Excitation Switched Flux Linear Motor for Axial Feed
  • A Hybrid Excitation Switched Flux Linear Motor for Axial Feed

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Embodiment Construction

[0014] The composition structure and electromagnetic performance of a hybrid excitation switch-flux linear motor for axial feeding of the present invention will be specifically introduced below in conjunction with the accompanying drawings:

[0015] refer to figure 1 As shown, a hybrid excitation switch magnetic flux linear motor for axial feeding in the present invention mainly consists of a feed shaft 1, a stator mounting sleeve 2, a machine base 3, a large stator ring 4, and a small stator ring 5 , Armature winding 6, magnetic steel 7, excitation winding 8, stator yoke collar 9, mover gear ring 10 and other components. The stator small tooth ring 5, the stator large tooth ring 4, the magnetic steel 7, the armature winding 6, the field winding 8, and the stator yoke collar 9 are arranged axially on the stator installation sleeve to form the primary stator of the linear motor .

[0016] combine figure 1 and figure 2 As shown, the magnetic steel 7 is magnetized along the ...

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Abstract

The invention relates to a hybrid field switch flux linear motor used for axial feeding. A stator small toothed ring, a stator big toothed ring, magnetic steel, an armature winding, a field winding and a stator yoke lantern ring are arranged on a stator mounting sleeve along the axial direction to compose a primary stator of the linear motor; active cell toothed rings are embedded on the outer diameter of a feeding shaft one by one along the axial direction to compose a secondary active cell of the linear motor. Through the design of the combined stator module structure, the linear motor is convenient and simple to assemble; the magnetic steel and the winding are arranged on a motor stator, the material usage and manufacturing cost of the linear motor are reduced; the active cell of the motor only has the active cell toothed rings, so that the drive robustness is strong and the inertia is low. As the field winding is arranged and the magnetic field of the motor is adjusted, the performances of low-speed loading and high-speed feeding of the linear motor are improved. In addition, the hybrid field switch flux linear motor used for the axial feeding greatly improves the motor running stability as a simple cooling liquid solenoid is arranged to enable the magnetic steel, the armature winding and the field winding to radiate heat together.

Description

technical field [0001] The invention belongs to the field of servo direct drive motors for machine tool feeding, in particular to a hybrid excitation switch magnetic flux linear motor for axial feeding. Background technique [0002] In today's high-end CNC processing machine tools, cylindrical permanent magnet linear motors are used to replace the "rotary servo motor + ball screw" spindle axial feed method, which has the advantages of high linear speed, fast instantaneous response, and high linear positioning accuracy, and is becoming more and more popular. Wide range of applications. The high power density and precise control performance of existing sine wave permanent magnet linear synchronous motors make them the first choice for cylindrical linear motors for axial feed drives. The linear motor is usually divided into two structures, the moving coil type and the moving magnet type. The moving coil structure motor has problems such as large amount of permanent magnet stee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K41/03
Inventor 赵升吨梁锦涛朱牧之李泳峄
Owner XI AN JIAOTONG UNIV
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