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

Braking method of directional control valve

A directional control valve, closed-loop control technology, applied in the valve operation/release device, valve details, valve device and other directions, can solve the problems of restricting the performance of the directional control valve, difficult to guarantee the accuracy, etc., to achieve low mechanical wear and equipment. The effect of long service life and high power density

Inactive Publication Date: 2016-06-08
WUXI HUAMU MACHINERY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Directional control valves, because they belong to the category of machinery, often adopt axis control in the process of control. Because the accuracy of the current control method (axis control) is difficult to be guaranteed, it also restricts the use of directional control valves. Its application-level performance is further improved

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The braking method of the directional control valve described in the embodiment of the present invention first collects the steering angle signal of the directional control valve through the integrated digital amplifier, then amplifies it through the integrated digital amplifier, and at the same time feeds back the position signal of the liquid level sensor inside the oil cylinder, Closed-loop control is realized; the flow velocity flowing through the directional control valve is detected again, and fed back to the integrated digital amplifier, and then the rotation angle of the steering motor of the directional control valve is corrected.

[0015] It is also mentioned that the sensor is docked with the integrated digital amplifier by means of wireless transmission.

[0016] A speed sensor is arranged on the pipeline where the directional control valve is located.

[0017] The integrated digital amplifier performs AD conversion on the steering angle signal.

[0018] Th...

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 discloses a direction control valve braking method which comprises the steps as follows: collecting a turn angle signal of a direction control valve by an integrated digital amplifier at first, then amplifying the turn angle signal by the integrated digital amplifier, and feeding back a position signal of a liquid level sensor in an oil cylinder at the same time to achieve closed-loop control; and detecting the flow speed of liquid flowing through the direction control valve, feeding back the flow speed to the integrated digital amplifier, and correcting a turn angle of a steering motor of the direction control valve. According to the direction control valve braking method, the shortage of the control of an electronic mechanical shaft is made up for, the property of a hydraulic technology is improved at the same time, namely the power density is higher, the energy storage and natural overload protection functions are achieved, the mechanical wear is low, the service life of equipment is longer, and the linear movement can be directly realized.

Description

technical field [0001] The invention relates to a braking method for a directional control valve, which belongs to the technical field of hydraulic mechanical control. Background technique [0002] Directional control valves, because they belong to the category of machinery, often adopt axis control in the process of control. Because the accuracy of the current control method (axis control) is difficult to be guaranteed, it also restricts the use of directional control valves. Its application-level performance has been further improved. [0003] Today's society is completely driven by digital electronic devices: computers, automation systems, automobiles, aerospace, electronic communications, and advanced network technologies are all built on digital technology. Compared with analog technology, digital technology has more typical advantages: faster and stronger data processing capability, simpler programmability, immunity to electromagnetic noise interference, signal proces...

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): F16K31/02
Inventor 徐晓东
Owner WUXI HUAMU MACHINERY
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