Iron-gallium alloy converse magnetostriction actuator driven by rotating motor and using method

A technology of inverse magnetostriction and rotating motors, applied in the direction of piezoelectric effect/electrostriction or magnetostriction motors, generators/motors, electrical components, etc., can solve the problem of low magnetic permeability of magnetostrictive materials and current Problems such as heat loss and high temperature have been solved to meet the needs of high-precision positioning and work stably

Inactive Publication Date: 2014-07-09
ZHEJIANG SCI-TECH UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of piezoelectric ceramics is that the material itself is relatively brittle, and the tangential load capacity is limited
The disadvantage of this driving method is that the energy consumption is large and the temperature is high.
The magnetic permeability of magnetostrictive materials is usually low, which requires more ampere-turns to drive, and the current in the coil will cause heat loss

Method used

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  • Iron-gallium alloy converse magnetostriction actuator driven by rotating motor and using method
  • Iron-gallium alloy converse magnetostriction actuator driven by rotating motor and using method
  • Iron-gallium alloy converse magnetostriction actuator driven by rotating motor and using method

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Embodiment 1

[0020] Embodiment 1, Figure 1 to Figure 7 An iron-gallium alloy inverse magnetostrictive driver driven by a rotating motor is given, including a rotating motor and an iron-gallium alloy inverse magnetostrictive driver; the iron-gallium alloy inverse magnetostrictive driver includes an upper conductive core 1 and a lower conductive core 3 and mover iron core 6; there is a gap between the upper magnetic core 1 and the lower magnetic core 3, and permanent magnets 4 parallel to each other are arranged in the gap between the upper magnetic core 1 and the lower magnetic core 3 (the magnetization direction of the permanent magnet 4 is the axial direction) and the iron-gallium alloy 5, the gap on one side of the iron-gallium alloy 5 is set as the mover gap, and the mover iron gap matching with the mover gap is arranged in the mover gap. Core 6; a circular fixed block 11 is arranged on the output shaft of the rotating motor, and the mover iron core 6 is fixed on the edge of the fixed ...

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Abstract

The invention discloses an iron-gallium alloy converse magnetostriction actuator driven by a rotating motor. The iron-gallium alloy converse magnetostriction actuator comprises the rotating motor and an iron-gallium alloy converse magnetostriction actuator body. The iron-gallium alloy converse magnetostriction actuator body comprises an upper magnetic-conducting iron core (1), a lower magnetic-conducting iron core (3) and a rotor iron core (6). A gap is formed between the upper magnetic-conducting iron core (1) and the lower magnetic-conducting iron core (3) and internally provided with a permanent magnet (4) and iron-gallium alloy (5) parallel to the permanent magnet (4). The iron-gallium alloy (5) penetrates through the upper magnetic-conducting iron core (1). The rotor iron core (6) which is in clearance fit with the gap is arranged at the position, corresponding to the gap between the upper magnetic-conducting iron core (1) and the lower magnetic-conducting iron core (3), of an output shaft of the rotating motor.

Description

technical field [0001] The invention relates to a magnetostrictive driver capable of realizing micron positioning accuracy, in particular, a permanent magnet is used to provide a driving magnetic field for an iron-gallium alloy magnetostrictive material, and the magnetostrictive material reverse hysteresis effect is used to change the driving magnetic field of the iron-gallium alloy, thereby changing The telescopic length of Fe-Gallium alloy is driven by a rotating motor to directly realize micro-linear and micro-displacement positioning. Background technique [0002] Smart materials, such as piezoelectric ceramics and magnetostrictive materials, enable micron-scale positioning. After the voltage is applied to the piezoelectric ceramics, the micro-displacement positioning is realized through the piezoelectric positive effect, and the larger positioning stroke is realized through the displacement amplification mechanism or the stacking method. The disadvantage of piezoelectr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/04
Inventor 夏永明张丽慧陆凯元方攸同燕龙潘海鹏雷美珍滕伟峰
Owner ZHEJIANG SCI-TECH UNIV
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