Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Cartridge Type Two-Stage Proportional Speed ​​Regulating Valve Based on Pressure Soaring Rate Detector

A proportional speed control valve and detection valve technology, which is applied in fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve problems such as overshoot, spool impact flow, and influence on valve dynamic performance, so as to suppress pressure overshoot. Adjust, reduce the impact of the valve core, improve the effect of flow control accuracy

Active Publication Date: 2021-07-16
TAIYUAN UNIV OF TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The "Electro-hydraulic proportional decompression and speed regulation compound control valve" with the publication number CN1053110 uses control algorithms and hardware circuits to improve the control accuracy and equal flow characteristics of the valve, but due to the dynamic response of the hardware circuit, the dynamic response and control of the pressure sensor Due to the influence of the calculation time of the algorithm, when the inlet pressure or load pressure of the hydraulic valve undergoes a sudden change, it will still cause the valve core shock and flow overshoot, which will seriously affect the dynamic performance of the valve.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Cartridge Type Two-Stage Proportional Speed ​​Regulating Valve Based on Pressure Soaring Rate Detector
  • A Cartridge Type Two-Stage Proportional Speed ​​Regulating Valve Based on Pressure Soaring Rate Detector
  • A Cartridge Type Two-Stage Proportional Speed ​​Regulating Valve Based on Pressure Soaring Rate Detector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Introduce detailed technical scheme of the present invention below in conjunction with accompanying drawing:

[0019] Such as Figure 1-2 As shown, a cartridge-type two-stage proportional speed control valve based on a pressure soaring rate detector includes: Valvistor cartridge valve 1, Valvistor pilot valve 2, pressure soaring rate detector 3 and digital flow compensator 4; The pressure soaring rate detector includes an inlet pressure soaring rate detection valve 5 and an outlet pressure soaring rate detection valve 6, wherein the inlet pressure soaring rate detection valve includes the first two-position two-way slide valve 7 and the first throttle hole 13, The first two-position two-way spool valve, including: the first spool 8, the first valve sleeve 9, the first right spring 11, the first left spring 12 and the first orifice 13; the inlet pressure soaring rate detection valve The first spool 8, the first right spring 11 and the right end valve chamber of the inle...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a plug-in two-stage proportional speed regulating valve based on a pressure soaring rate detector. The proportional speed regulating valve uses the pressure soaring rate detector to detect the change of the inlet pressure or outlet pressure of the main valve in real time. The opening of the valve port of the device controls the pressure of the main valve control chamber and reduces the flow overshoot of the main valve. A plug-in two-stage proportional speed regulating valve based on a pressure soaring rate detector disclosed by the present invention has the ability to quickly detect sudden pressure changes, quickly adjust the flow overshoot caused by the sudden pressure change, and improve the proportional regulation by combining a digital flow compensator. The constant flow characteristic of the speed valve improves the dynamic performance of the proportional speed control valve.

Description

technical field [0001] The invention belongs to the technical field of electro-hydraulic control valves, and in particular relates to a plug-in two-stage proportional speed regulating valve based on a pressure soaring rate detector. Background technique [0002] In the electro-hydraulic control system, the interpolation-type two-stage proportional throttle valve is widely used in the motion control of hydraulic actuators. Due to the influence of the pressure difference at the valve port, the output flow of the cartridge-type two-stage proportional throttle valve is not constant. Displacement-flow feedback proportional throttle valve is a cartridge type two-stage proportional throttle valve. One of its advantages is that there is an approximate linear relationship between the flow through the main valve and the flow through the pilot valve. However, its output Flow is still affected by changes in differential pressure across the valve port. In order to reduce the influence o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
CPCF15B13/02F15B2013/004
Inventor 黄家海赵海娟郝惠敏王鹤
Owner TAIYUAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com