Supercharge Your Innovation With Domain-Expert AI Agents!

Valve device and support frame including the valve device

A technology of support frame and valve device, which is applied in the direction of mine roof support, pillar/bracket, mining equipment, etc., can solve the problems of occupation of the forward mechanism, excessive hydraulic capacity, and the pressure on the piston surface of the lifting cylinder cannot be maintained all the time. Achieve space-saving, cost-effective manufacturing effects

Inactive Publication Date: 2013-07-24
MARCO SYSTEMANALYSE UND ENTWICKLUNG GMBH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem with the known valve arrangement is that the pressure at the piston surface of the lifting cylinder cannot always be maintained when the shield bracket is pulled forward, since in this case the forward mechanism takes up too much hydraulic capacity

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
  • Valve device and support frame including the valve device
  • Valve device and support frame including the valve device
  • Valve device and support frame including the valve device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] figure 1 The schematic circuit diagram shown in shows a valve arrangement for a support frame in a mine, comprising two setting cylinders 10 , 12 and a lifting cylinder 14 . A first openable non-return valve 16 for controlling the setting cylinder 10 has a piston surface connection 18 , a ring surface connection 20 and a pressure line connection 22 . Piston surface connection 18 is in communication with piston surface A' of setting cylinder 10 and ring surface connection 20 is connected with ring surface B' of setting cylinder 10 while ring surface connection 20 is the control connection for valve 16 . The pressure line connection 22 is connected to the pressure line A2.

[0017] The second non-return valve 24 serves to control the lift cylinder 14 and has a pressure line connection 26 , a piston surface connection 28 and a control connection 30 . The pressure line connection 26 is connected to the ring surface connection 20 of the first check valve 16 . The piston s...

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 arrangement has an unlockable non-return valve (16) i.e. check valve, with a piston surface connection (18) and a ring surface connection (20) for being attached to a setting cylinder (10) of a support frame. Another unlockable non-return valve (24) includes a pressure pipe connection (26) and a piston surface connection (28) for being attached to a piston surface of a lift cylinder (14). The valve (24) has a control connection (30) connected with the piston surface connection (18). The pressure pipe connection is connected with the ring surface connection.

Description

technical field [0001] The invention relates to a valve arrangement for a support frame in a mine, comprising a first openable non-return valve having a setting cylinder for contact with the support frame Connected piston surface connection and ring surface connection, and pressure line connection. Furthermore, the valve arrangement comprises a second openable non-return valve having a pressure line connection, a piston surface connected to a piston surface of a lifting cylinder for the slideway of the support frame Connections, and control system connections. Background technique [0002] Such valve arrangements are known from the prior art, whereby setting cylinders are used to set the support frame and lift cylinders are used to lift the entire shield frame with slides. However, a problem with the known valve arrangement is that the pressure at the piston surface of the lifting cylinder cannot always be maintained when the shield bracket is being pulled forward, since i...

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): E21D15/51E21D23/16
CPCE21D23/16
Inventor 马丁·罗伊特
Owner MARCO SYSTEMANALYSE UND ENTWICKLUNG GMBH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com