Direct-acting type ratio overflow valve

A proportional relief valve, direct-acting technology, applied in the direction of fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve the problems of low cost, proportional increase in opening pressure, etc.

Active Publication Date: 2013-02-06
CHONGQING HONGJIANG MACHINERY
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the technical problem that the existing direct-acting proportional relief valve cannot meet the requirements of high cracking pressure when the input signal is zero, proportional increase of cracking pressure when the input signal increases, small d

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
  • Direct-acting type ratio overflow valve
  • Direct-acting type ratio overflow valve
  • Direct-acting type ratio overflow valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing:

[0023] figure 1 It is the structural diagram of the direct-acting proportional overflow valve. It can be seen from the figure that the direct-acting proportional overflow valve consists of a proportional electromagnet 1, a spring seat 3, a transition rod 12, a spring 11, a spool 4, and a valve Seat 5, valve body 9 and adjusting screw 7 and other components. The spring seat 3, spring 11, valve core 4 and valve seat 5 are installed in the through hole of the valve body, the proportional electromagnet 1 is installed on the left end of the valve body 9, the spring seat 3 is directly installed on the right end of the proportional electromagnet 1, and the proportional solenoid The push rod 2 of iron penetrates in the seat hole of the spring seat 3, and is connected with the left end of the spool 5 by the transition rod 12. Spring 11 is installed on spring seat 3 and spool 4, wi...

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

PropertyMeasurementUnit
Stiffnessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a direct-acting type ratio overflow valve which comprises a ratio electromagnet, a spring base, a spring, a valve core, a valve base, a valve body and an adjusting screw, wherein a push rod of the ratio electromagnet is directly connected with the valve core or is connected with the valve core through a transition rod, the spring base is directly arranged on the end surface of the ratio electromagnet, and the spring is arranged on the spring base and the valve core; and spring force and force output by the ratio electromagnet are acted on the valve core in a superposition manner, when the input is zero, the ratio overflow valve can have high opening pressure, the adjusting screw is adjusted to change the spring force, a characteristic curve of the ratio overflow valve moves in an upper-down manner, and a dead zone of the ratio overflow valve can not be increased. According to the valve, the requirements that the direct-acting type ratio overflow valve has the high opening pressure when an input signal is zero, and when the input signal is increased, the opening pressure is increased in a ratio manner, and the dead zone is small can be met, and the cost is low.

Description

technical field [0001] The invention relates to a valve, in particular to a direct-acting proportional overflow valve. Background technique [0002] The proportional relief valve has more powerful functions than ordinary relief valves, these functions include: convenient pressure adjustment; constituting a constant pressure source of the hydraulic system; conveniently forming a pressure negative feedback system; reasonably adjusting the amplitude of the control signal to obtain hydraulic pressure The overload protection function of the system, etc. [0003] The direct-acting proportional relief valve with force control proportional solenoid is usually composed of proportional solenoid, valve body, valve core and valve seat. The force output by the proportional solenoid push rod directly acts on the valve core through the guide cylinder. The increase of the electromagnetic force increases proportionally, so that the opening pressure also increases proportionally. In the cas...

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
IPC IPC(8): F15B13/02
Inventor 黄贵川雷友军谢远文何利王康
Owner CHONGQING HONGJIANG MACHINERY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap