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A comprehensive stiffness measuring device for servo valve armature assembly

A measuring device and servo valve technology, which is applied in the field of hydraulic devices, can solve the problems of not being able to respond to the stress and deformation of the armature components, and achieve the effect of accurate positioning and analysis

Active Publication Date: 2020-08-21
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the comprehensive stiffness of the armature assembly adopts a series measurement method, which cannot reflect the deformation of the armature assembly during the working process of the servo valve.

Method used

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  • A comprehensive stiffness measuring device for servo valve armature assembly
  • A comprehensive stiffness measuring device for servo valve armature assembly
  • A comprehensive stiffness measuring device for servo valve armature assembly

Examples

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Embodiment Construction

[0016] A comprehensive stiffness measurement device for a servo valve armature assembly provided by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Such as figure 1 and figure 2 As shown, a comprehensive stiffness measurement device for a servo valve armature assembly provided by the present invention includes a mounting base 1, an armature assembly 2, a rotating fork 3, a fixing screw 4, an angle sensor 5, a torque sensor 6, a micro-drive wheel 7, Locking spool 8, locking screw 9; there is a through hole on the installation base 1, the locking spool 8 is inserted into the through hole and fits with the installation base 1, and can slide flexibly. A locking screw 9 is installed on the surface, and the locking screw 9 is threadedly connected with the installation base 1 and withstands the locking valve core 8; the armature assembly 2 is fixedly installed on the installation base 1...

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Abstract

The invention belongs to the technical field of hydraulic devices, and particularly relates to a measurement device of synthetical stiffness of servo valve armature component. A through hole is formedin an installing base body, a locking valve element is inserted into the through hole, a locking screw is installed on the vertical surface of the through hole of the installing base body, and the screw is connected with the installing base body and props up the locking valve element; an armature component is fixedly installed on the installing base body, a small ball at one end of the armature component is inserted into a groove of the locking valve element through the other through hole on the installing base body and in clearance fit with the groove of the locking valve element, and two flat part of the armature component are in clearance fit with a rotary shifting fork; and an angle sensor is fixedly installed on the installing base body, the rotary shifting fork is connected with theupper end of the angle sensor through a rigid coupling, a torque sensor is connected with the lower end of the angle sensor through a flexible coupling, and a micro driving rotary wheel is connectedto the lower end of the torque sensor through a coupling. According to the measurement device of the synthetical stiffness of the servo valve armature component, a measurement function of the synthetical stiffness can be realized, the synthetical stiffness value is closer to the actual condition, and the positioning analysis towards a problem is more accurate.

Description

technical field [0001] The invention belongs to the technical field of hydraulic devices, and in particular relates to a comprehensive stiffness measuring device for an armature assembly of a servo valve. Background technique [0002] The electro-hydraulic servo valve is the key component of the electro-hydraulic servo mechanism, and the armature assembly is the core component of the pre-stage of the servo valve, and its stiffness characteristics directly determine the performance of the servo valve. In the prior art, the comprehensive stiffness of the armature assembly is measured in series, which cannot reflect the stress and deformation of the armature assembly during the working process of the servo valve. [0003] By analyzing the force condition of the armature assembly in the working process of the servo valve, a comprehensive stiffness measurement method close to its real force deformation condition is proposed, and the corresponding test device is developed to reali...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M5/00
CPCG01M5/0075
Inventor 孟健张俊杰全立娟周宣杨强朱剑
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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