Tunnel ahead support stent

A technology of advanced support and roadway, which is applied to mine roof supports, mining equipment, earthwork drilling, etc., can solve problems such as poor adaptability, and achieve the effect of strong adaptability and improved support conditions.

Active Publication Date: 2009-08-19
SHANDONG TIANSHENG COAL MINE EQUIP CO LTD
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The task of the present invention is to solve the technical problem of poor adaptability to the unevenness of th

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
  • Tunnel ahead support stent
  • Tunnel ahead support stent
  • Tunnel ahead support stent

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1

[0020] Combine figure 1 , figure 2 and image 3 , A roadway advanced support bracket, including a main frame body a and a sub-frame body b, the main and auxiliary frame bodies a and b each include a top beam 1 and a base 2, and a telescopic support is provided between the top beam 1 and the base 2. The column 3 and the four-bar linkage mechanism 4 are supported. The rear end of the base 2 is provided with a frame-moving jack 5, and the frame-moving jack 5 and the sliding seat 15 are connected by a crosshead 16. The main and auxiliary frames a and b are arranged side by side to form a group. The main and auxiliary frames a and b are connected by the anti-fall jacks 6, 7 through the connector 8, that is, between the bases of the main frame and the auxiliary frame. A bottom anti-fall jack 6 is provided, and a top anti-fall jack 7 is arranged between the top beams. Taking the main frame body a as an example, the top beam 1 is composed of front, middle and rear beam...

Example Embodiment

[0023] Example 2

[0024] Except that no inner guard plate (outer guard plate) is provided on the top beams of the above-mentioned main frame body and auxiliary frame body, and the base of the main frame body and the auxiliary frame body does not adopt a fixed seat body and a movable seat plate, and corresponding adjustment jacks, The other technical content is the same as the corresponding part of the technical content of the first embodiment.

Example Embodiment

[0025] Example 3

[0026] Except that the top beam and the base of the main (sub) frame body are each composed of two sections of hinged joints, the other technical content is the same as the corresponding part of the technical content of Embodiment 1 or Embodiment 2.

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 an advance support bracket of a machine lane, comprising a main support body and a minor support body which are combined into a group side by side, the main support body and a minor support body are connected with each other by a connector of an anti-fall jack; the support bodies in the main support body and the minor support body comprise top beams and bases, retractable supporting columns and supporting four bar linkage mechanisms are arranged between the top beams and the bases, support-moving jacks are arranged at the rear ends of the bases; the advance support bracket of the invention is characterized in that the top beams are composed of at least two sections of beam bodies, the two sections of beam bodies are hinged with each other in sequence, the bases also comprise at least two base bodies, two sections of the base bodies are also hinged with each other in sequence; each base body faces squarely one section of beam bodies therein. The advance support bracket of the invention can effectively overcome the technical disadvantage in the prior art that the suitability thereof is very weak to unevenness of the machine lane top plate and base plate as the top beams and bases both adopt an integral type rigid structure and has strong suitability to unevenness of the top plate and base plate of the machine lane.

Description

technical field [0001] The invention relates to a roadway advance support bracket, which can meet the requirements of the advance support distance (20-30m), support strength and other support specifications (pedestrian road, cable road, etc.) of the coal mining face, and is easy to use , fast, conducive to rapid advancement of the working face, easy installation, maintenance and removal. The support can be used for self-moving walking support in various mine roadways to protect the safety of underground workers and equipment in the roadway, and belongs to the field of mining machinery manufacturing and application. Background technique [0002] In mines with modern comprehensive mechanized mining, especially in coal mining, as the coal mining face advances, the roadways at both ends of the working face will be damaged, causing the roadways behind the coal mining face to collapse, and the roadways near the working face will also collapse. However, the roadways at both ends 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
IPC IPC(8): E21D23/04E21D23/03
Inventor 牛敬业岳永强刘鹏飞张连宝
Owner SHANDONG TIANSHENG COAL MINE EQUIP CO LTD
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