Debugging device and debugging method for a split-type power stage servo valve

A debugging method and servo valve technology, applied in the field of servo valve debugging, can solve problems such as inability to accurately locate problems, and achieve the effect of improving test efficiency and pass rate

Active Publication Date: 2016-08-31
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this debugging method is that the test curve can only reflect the comprehensive effect of the main valve core and valve sleeve, and the small valve core and small valve sleeve.
When the test curve is abnormal, the problem cannot be accurately located

Method used

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  • Debugging device and debugging method for a split-type power stage servo valve
  • Debugging device and debugging method for a split-type power stage servo valve
  • Debugging device and debugging method for a split-type power stage servo valve

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Embodiment Construction

[0021] Such as figure 1 As shown, a servo valve A provided by the present invention with a split power stage servo valve debugging device includes a control oil system 27 without a small spool, a main spool 3, a main spool control chamber 16, a second main valve Core control cavity 24 , second main valve core 25 , control cavity communication channel 23 , internal leakage channel 26 . The control oil in the control oil system 27 without a small spool directly acts on the left end of the main spool 3 . The main spool 3 communicates with the second main spool 25 through an internal leakage passage 26 . The main spool 3 is provided with a main spool control cavity 16, the second main spool 25 is provided with a second main spool control cavity 24, and the gap between the main spool control cavity 16 and the second main spool control cavity 24 The outside communicates with the control chamber communication channel 23, and the control chamber communication channel 23 can be opene...

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Abstract

The invention belongs to the debugging field of servo valves, and particularly discloses a debugging device and method for a split type power level servo valve. The servo valve which is provided with the debugging device for the split type power level servo valve comprises a control oil system without a small valve element, a main valve element, a main valve element control cavity, a second main valve element control cavity, a second main valve element, a control cavity communication channel and an inner leakage passage. The control oil system without the small valve element comprises a small debugging screw and a small debugging valve bush. According to the debugging method, resolution ratio curves and pressure gain curves under the two conditions that the small valve element does not exist and the small valve element exists are measured. According to the debugging device and method, the self-designed small debugging valve bush and the small debugging screw are adopted, so that debugging is achieved step by step, the parts where problems happen can be positioned accurately, and the testing efficiency and the percent of pass are improved.

Description

technical field [0001] The invention belongs to the field of debugging of servo valves, and in particular relates to a debugging device and a debugging method of a split-type power stage servo valve. Background technique [0002] The electro-hydraulic servo valve is a control device that precisely controls the magnitude and direction of the output flow or pressure by the input current. It is the key control element of the electro-hydraulic servo mechanism of aerospace vehicles such as rockets and missiles. The power stage structure of the servo valve is divided into two types, namely integral type and split type. Among them, the split power stage structure is one of the key components of the large-flow high-response servo valve, and its structural parameters and debugging methods determine the performance of the whole valve. Therefore, after the structural parameters are determined in the development process, its power stage debugging method and device are of great signific...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 杨文祥陈琴左哲清王书铭陈祖希刘茂林张俊杰韩旭
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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