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Forward slip type hydraulic support

A hydraulic support and front-end technology, which is applied to mine roof support, mining equipment, earthwork drilling and mining, etc., can solve the problems of limited popularization and application, high price, and strict geological conditions.

Inactive Publication Date: 2008-08-13
李泽宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fully-mechanized mining supports can be placed without tying the roof net, but the fully-mechanized mining supports weigh more than ten tons, and the light-type fully-mechanized mining supports also weigh seven to eight tons. The support for fully mechanized mining can only be used for machine mining, not blast mining, so the popularization and application are limited

Method used

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  • Forward slip type hydraulic support
  • Forward slip type hydraulic support
  • Forward slip type hydraulic support

Examples

Experimental program
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Embodiment approach

[0020] Combining Figure 1 and figure 2 , the first embodiment of the front sliding hydraulic support of the present invention includes an integrated top beam 1 whose front section is parallel to the top plate and the rear section is obliquely downward and in contact with the bottom plate; The slider 23 that slides on the lower guide rail 22 and the upper guide rail 24; one end is connected to the top beam through a pin 17, and the other end is connected to the connecting piece 16 connected to the slider 23 that slides on the top beam; the hydraulic prop 8 supported under the top beam; The chassis 25 connected to the lower end of the hydraulic prop 8; one end is hinged with the top beam through the pin 11, and the frame moving cylinder 12 is hinged at the other end with the slider 23 through the pin 18; The force transmission member 20 hinged with the front end of the top beam of the adjacent frame; the front extension beam oil cylinder 7 and the front extension beam 5 hinged t...

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Abstract

The present invention discloses a forward slip hydraulic support used in the working surface top board support for coal mine underground, includes integral top beam 1, hydraulic prop 8 at the bottom of top beam, chassis 25 connected with the lower of hydraulic prop 8, front extending beam and oil cylinder of front extending beam 5. The present invention is characterized in: most of forepart 9 paralleled with top board, the back part of the curving top beam of the back part 10 inclined downwardly is on the baseboard in the state of moving support, the forepart 9 supported by adjacent bracket forepart of top beam slides forward. When working surface is used, forward slip type hydraulic support is densely in a horizontal row, and especially has a strong adaptability to mining three soft coal seam.

Description

technical field [0001] The invention relates to a light hydraulic support used for underground mining face support. Background technique [0002] The hydraulic supports are divided into two categories: sliding roof beam hydraulic supports and fully mechanized mining supports. The present invention is a hydraulic support between the two. Its background technology also has two major categories, and the first category is the technology described in the "General Technical Conditions for Sliding Roof Beam Hydraulic Supports" of China's coal industry. Existing technology in this field has suspension top beam hydraulic support (Chinese patent application number 88104291.9); Trident hydraulic support (Chinese patent application number 96209441.2); Side-by-side sliding top beam hydraulic support (Chinese patent application number 91200747.8) Wait. Above-mentioned these supports all are made up of parts such as hydraulic strut, front extension beam, frame shifting cylinder, two top ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D23/04E21D23/16
Inventor 李泽宇
Owner 李泽宇
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