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A switching flux permanent magnet linear motor feed device

A permanent magnet straight line, switching magnetic flux technology, applied in the direction of electromechanical devices, electric components, electrical components, etc., can solve the problems of large thrust fluctuation, low efficiency, high motor cost, etc., to reduce thrust fluctuation and enhance robustness , compact structure

Active Publication Date: 2019-02-01
JIANGSU DEPER GATING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with the traditional "rotary servo motor + ball screw" spindle linear drive method, there are still disadvantages such as low efficiency, large thrust fluctuations, and high motor costs, making it difficult to be widely used in the field of high-precision, high-thrust, long-stroke drive linear feed.

Method used

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  • A switching flux permanent magnet linear motor feed device
  • A switching flux permanent magnet linear motor feed device
  • A switching flux permanent magnet linear motor feed device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A switching flux permanent magnet linear motor feeding device is characterized in that it at least includes: a device base 1, a feeding slide 2, a primary mover module 3, a secondary stator 4, a guide rail slider 5, and a linear guide rail 6 , grating ruler 7, grating ruler reading head 8 and secondary iron core pressure plate 9; device base 1 is a rectangular structure, device base 1 fixes linear guide rails 6 along both ends of the width, and linear guide rails 6 are distributed along the length direction, between linear guide rails 6 The secondary stator 4 is fixed by the secondary iron core pressure plate 9; the primary mover module 3 has two, which have the same structure, and there is a gap between the two primary mover modules, and the gap makes the magnetic circuits of the same phase windings complementary , to reduce thrust fluctuation; there is a grating ruler reading head 8 on the side of the feed slide 2, and a grating ruler 7 on the side of the linear guide ...

Embodiment 2

[0022] refer to figure 1 and figure 2 As shown, a switching flux permanent magnet linear motor feeding device at least includes: a device base 1, a feeding slide 2, a primary mover module 3, a secondary stator 4, a guide rail slider 5, a linear guide rail 6, Grating ruler 7, grating ruler reading head 8 and secondary iron core pressure plate 9; device frame 1 is a rectangular structure, device frame 1 fixes linear guide rails 6 along both ends of the width, and linear guide rails 6 are distributed along the length direction, between linear guide rails 6 The secondary stator 4 is fixed by the secondary iron core pressing plate 9;

[0023] (See figure 2 ) There are two primary mover modules 3 with the same structure, and there is a gap between the two primary mover modules. The gap makes the magnetic circuits of the same-phase windings complementary and reduces thrust fluctuations.

[0024] Such as figure 1 and Figure 5 As shown, guide rail sliders 5 are respectively ins...

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Abstract

The invention relates to a switch flux permanent magnet linear motor feeding device which at least comprises a device seat, a feeding sliding table, primary rotor modules, secondary stators, a guide rail slider, a linear guide, a grating ruler, a grating ruler reading head, and a secondary core pressing plate. The feeding sliding table is provided with two same primary rotor modules along an axial central line, and the two primary rotor modules are spaced with a certain distance to realize the symmetrical complementation of a motor magnetic field. The device seat is provided with the secondary stators along the axial central line, and the secondary stators are superposed by a silicon steel sheet to form a whole body. The electromagnetic thrust generated in between the primary rotor modules and the secondary stators drive the feeding sliding table to realize axial feeding motion on the device seat. The linear motor of the invention has good working performance in the field of high precision, large thrust and long stroke driving linear motors.

Description

technical field [0001] The invention belongs to the field of high-precision, large-thrust, and long-stroke drive linear feeding devices, and in particular relates to a switching magnetic flux permanent magnet linear motor feeding device. Background technique [0002] Nowadays, permanent magnet linear synchronous motors have been widely used in the feed systems of various CNC machine tools due to their high speed, high acceleration, fast response speed, and high positioning accuracy. However, compared with the traditional "rotary servo motor + ball screw" spindle linear drive method, there are still disadvantages such as low efficiency, large thrust fluctuations, and high motor costs, making it difficult to be widely used in the field of high-precision, high-thrust, long-stroke drive linear feed. . [0003] In view of the above technical problems, it is necessary to provide a new type of high-precision high-thrust linear motor that can overcome the above-mentioned defects, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K41/03
CPCH02K41/033
Inventor 梁锦涛纪小品张言王文博
Owner JIANGSU DEPER GATING TECH CO LTD