High-speed two-way permanent-magnetic reset proportion electromagnet

A proportional electromagnet and electromagnet technology, applied in the field of electromagnets, can solve the problems of insufficiency, slow system response, large quality of moving iron, etc., so as to improve the spool position control accuracy, improve the system response bandwidth, and improve the economy and efficiency. The effect of social benefit

Inactive Publication Date: 2012-08-15
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure has the advantages of large output force and simple structure, but the mass of the moving iron is large, the inertia is large, the inductance of the coil is large, the nonlinearity and hysteresis are obvious, the system response is slow, and it can only move in one directi

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  • High-speed two-way permanent-magnetic reset proportion electromagnet
  • High-speed two-way permanent-magnetic reset proportion electromagnet

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Embodiment Construction

[0017] Attached below figure 1 And embodiment the present invention is described further.

[0018] The present invention includes an electromagnet shell 1, a cylindrical push rod 2, a permanent magnet inner ring 3, a fixing screw 4, a permanent magnet outer ring 5, a coil frame 6, an electromagnetic coil 7, a linear Hall sensor 8, a fixing nut 9, and a lead hole 10. Non-magnetic screw 11, rear end cover 12 and zero adjustment screw 13; inside the electromagnet housing 1, there is a coaxial coil frame 6, and the outer surface of the coil frame 6 is provided with three annular grooves, and the linear Hall sensor 8 is glued to it. The junction is in the middle annular groove, and two electromagnetic coils 7 are reversely wound and connected in series in the annular grooves on both sides. One side of the coil bobbin 6 is fixed to the rear end cover 12 through a non-magnetic screw 11; the inside of the coil bobbin 6 The cylinder push rod 2 is coaxially installed, and the rod end o...

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PUM

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Abstract

The invention discloses a high-speed two-way permanent-magnetic reset proportion electromagnet. A coil framework is coaxially arranged in a shell; three ring grooves are formed in an outer side surface of the framework; a linear hall sensor is adhered in the middle ring groove; electromagnetic coils are reversely wound and connected in series in the ring grooves at two sides of the middle ring groove; one side of the coil framework is fixedly connected with a rear end cover; a cylindrical push rod is coaxially arranged in the coil framework, one end with a rod extends out of the shell of the electromagnet and is in clearance fit with a shell hole of the electromagnet, and an outer permanent magnetic ring is sleeved on the outer side of the other end of the cylindrical push rod; and an inner permanent magnetic ring is coaxially arranged in the cylindrical push rod and is fastened on a small end face of a zero position adjusting screw through a set screw. The inner and outer permanent magnetic rings from a linear magnetic spring, so that the high-speed two-way permanent-magnetic reset proportion electromagnet has a relatively high magnetic spring elasticity modulus, the quality of amovable iron core is reduced, the natural frequency of an electromagnet system is increased, a displacement closed-loop regulating system is formed with an external proportional amplifier through position feedback of the linear hall sensor, and the valve core displacement adjustment accuracy and the system closed-loop bandwidth are improved.

Description

technical field [0001] The invention relates to an electromagnet, in particular to a high-speed bidirectional permanent magnet reset proportional electromagnet. Background technique [0002] Pneumatic proportional control technology is a new application technology developed from traditional on-off pneumatic technology to proportional servo control. Pneumatic proportional servo valve is a necessary core component of pneumatic servo positioning motion control system, and is a typical representative of mechanical and electrical integration products. The development of pneumatic proportional servo components represents the highest level of scientific and technological research and development of pneumatic component manufacturers. [0003] The proportional electromagnet is the key component of the pneumatic proportional valve. Its input is generally the current or voltage signal output by the proportional amplifier, and the output is the push-pull force or displacement, which dr...

Claims

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Application Information

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IPC IPC(8): H01F7/06F16K31/06
Inventor 袁月峰陶国良刘昊
Owner ZHEJIANG UNIV
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