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Electro-mechanical Converter for Axial Split-phase Valve with Symmetrical Torque-Angle Characteristic

An axial phase splitting and converter technology, applied in electrical components, electromechanical devices, magnetic circuit rotating parts, etc., can solve the problem of poor positioning accuracy of 2D digital valves, and achieve the effect of improving positioning accuracy

Active Publication Date: 2011-12-21
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the shortcomings of poor positioning accuracy of 2D digital valves caused by the asymmetry of the moment-angle characteristics of the existing axial split-phase valve electrical-mechanical converters, the present invention provides a method that can improve the positioning accuracy of 2D digital valves. Electro-mechanical Converter for Axial Split-phase Valve with Symmetrical Torque-Angle Characteristic

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  • Electro-mechanical Converter for Axial Split-phase Valve with Symmetrical Torque-Angle Characteristic
  • Electro-mechanical Converter for Axial Split-phase Valve with Symmetrical Torque-Angle Characteristic
  • Electro-mechanical Converter for Axial Split-phase Valve with Symmetrical Torque-Angle Characteristic

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] refer to Figure 1 ~ Figure 12d, an electro-mechanical converter for an axial split-phase valve with symmetrical moment-angle characteristics, including a first stator cage cover 15, a first stator cage seat 5, a second stator cage cover 14, a second Stator holder seat 12, stator silicon steel sheet 16, first coil holder 7, second coil holder 13, first control coil 6, second control coil 9, permanent magnet 8, rotor silicon steel sheet 17, rotor holder 4 , rotor shaft 3, housing 18, front end cover 1, rear end cover 10 and right bearing 2, left bearing 11. Wherein the first stator cage cover 15, the first stator cage seat 5, the second stator cage cover 14, the second stator cage seat 12 and the rotor cage 4 are high-strength reinforced nylon material injection molding (of course , and other insulating materials can also be used), which can reduce the weight o...

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Abstract

The invention relates to an electric-mechanical converter with symmetric torque angle characteristic for an axial split-phase type valve. The electric-mechanical converter comprises a shell, a first stator holding frame cover, a first stator holding frame base, a second stator holding frame cover, a second stator holding frame base, stator silicon-steel plates, a first coil holding frame, a second coil holding frame, a first control coil, a second control coil, permanent magnets and a rotor component are mounted in the shell; the permanent magnets are located between a first stator holding frame and a second stator holding frame; the permanent magnets are partitioned into four areas in the way that a whole circumference is quartered, wherein each area is axially magnetized and N poles andS poles are alternated pairwise. The invention provides electric-mechanical converter with symmetric torque angle characteristic for the axial split-phase type valve and the electric-mechanical converter can improve positioning accuracy of a 2D (two-dimensional) digital valve.

Description

technical field [0001] The invention belongs to the field of fluid transmission and control, in particular to an electro-mechanical converter for a 2D digital servo valve. Background technique [0002] In recent years, the 2D digital servo valve using the principle of servo screw mechanism has been widely used in metal material testing machines, earthquake simulation shaking tables and related aerospace fields because of its simple structure, fast response speed, high precision, and strong anti-pollution ability. have been widely used. Conventional electro-mechanical converters for 2D digital servo valves are generally two-phase hybrid stepper motors controlled in AC servo mode, and their structure can be divided into axial phase splitting and radial phase splitting according to the different phase splitting methods of the motor stator. Two, the former has the following advantages compared with the latter: First, the axial phase separation is adopted, the control winding ca...

Claims

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Application Information

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IPC IPC(8): H02K37/10H02K1/18H02K1/14H02K1/24
Inventor 孟彬阮健左强
Owner ZHEJIANG UNIV OF TECH