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Triplex-redundancy coil structure of electro-hydraulic servo valve

An electro-hydraulic servo valve and three-redundancy technology, applied in the field of mechanical hydraulics, can solve problems such as aircraft out of control, poor working conditions, and loss of life safety, and achieve the effect of increasing control margin and improving reliability

Active Publication Date: 2020-04-28
AVIC NANJING SERVO CONTROL SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its failure will cause the aircraft to lose control, resulting in irreparable loss of life safety and economic loss
As a hydraulic component, the electro-hydraulic servo valve is used in harsh working conditions. In order to improve reliability, the control margin of the electro-hydraulic servo valve can be increased

Method used

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  • Triplex-redundancy coil structure of electro-hydraulic servo valve
  • Triplex-redundancy coil structure of electro-hydraulic servo valve

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Embodiment Construction

[0018] This part is the embodiment of the present invention, which is used to explain and illustrate the technical solution of the present invention.

[0019] The three-redundancy coil structure of the electro-hydraulic servo valve of the present invention includes a large winding 5, a small winding 6, a retaining wall, a lead wire 4, and an armature assembly 8, and the large winding 5 and the small winding 6 are installed side by side, and the large winding 5 and the small winding 6 are arranged side by side. A retaining wall is provided between the small windings 6 to form a coil assembly 12; the two coil assemblies 12 are installed on the two cantilevers of the armature assembly 8; the two small windings 6 are connected in series through lead wires, and the two coil assemblies 12 The small windings 6 are adjacent, and the large windings 5 ​​are arranged at both ends of the armature assembly 8 .

[0020] The large winding 5 and the small winding 6 are made by winding the ena...

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Abstract

The invention discloses a triplex-redundancy coil structure of an electro-hydraulic servo valve. The triplex-redundancy coil structure comprises large windings, small windings, dead walls, a lead wireand an armature assembly; each large winding and the corresponding small winding are installed together side by side, the corresponding dead wall is arranged between the large winding and the small winding, and a coil assembly is formed; the two coil assemblies are installed on two cantilevers of the armature assembly; the two small windings are connected in series through the lead wire, the twosmall windings of the two coil assemblies are adjacent, and the large windings are arranged at the two ends of the armature assembly; the large windings and the small windings are formed by winding enameled wires around coil frameworks; and each coil framework is of a structure provided with two grooves, and the corresponding dead wall is arranged between the grooves of the coil framework. According to the triplex-redundancy coil structure on the premise that the size of existing coils is not changed, the effect of increasing the control redundancy of the electro-hydraulic servo valve is achieved, and the reliability of the electro-hydraulic servo valve is improved.

Description

technical field [0001] The invention belongs to the field of mechanical hydraulics, and specifically relates to a three-redundancy coil structure of an electro-hydraulic servo valve. The control margin of the valve improves the reliability of the electro-hydraulic servo valve. It is suitable for hydraulic servo control systems with higher requirements for reliability and safety. Background technique [0002] As a precise and complex hydraulic servo control element, the electro-hydraulic servo valve is widely used in the aerospace field. Its failure will cause the loss of control of the aircraft, resulting in irreparable loss of life safety and economic loss. As a hydraulic component, the electro-hydraulic servo valve is used in harsh working conditions. In order to improve reliability, the control margin of the electro-hydraulic servo valve can be increased. [0003] Traditional electro-hydraulic servo valves adopt dual redundancy control, which contains two coil assembli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06F15B13/02H01F7/08H01F7/126
CPCF16K31/0679F16K31/061F15B13/02H01F7/08H01F7/081H01F7/126
Inventor 张驰葛声宏赵义伟
Owner AVIC NANJING SERVO CONTROL SYST CO LTD
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