Flexible shield support with adjustable height

A technology for flexible cover supports and adjustable supports, which is applied in pillars/supports, mining equipment, earthwork drilling and mining, etc. It can solve problems such as large thickness changes, unstable coal seam occurrence, and inability to adapt to changes in coal seam thickness to increase the support height Effect

Inactive Publication Date: 2013-06-05
王琼 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The steeply inclined coal seam has the characteristics of complex geological structure, unstable coal seam occurrence, and large thickness variation. In order to solve the problem that the currently used flexible cover support cannot adapt to the thickness change of the coal seam, improve the coal recovery rate and safety, and reduce the labor intensity of workers, Invented a support with low cost, simple installation process, convenient movement, safety and reliability, and can adapt to the change of coal seam thickness, which is called height-adjustable flexible cover support. The content of the invention is as follows:

Method used

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  • Flexible shield support with adjustable height
  • Flexible shield support with adjustable height

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Experimental program
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Embodiment Construction

[0011] 1. Installation of bracket

[0012] Install the telescopic support leg 2 in the support frame body 1. When installing, first pass the non-helical end of the screw rod 3 through the fixed plate 6, then install the baffle plate 5, fasten it through the nut, and then install the telescopic support leg 2 Insert it into the bracket frame body 1 until the round hole on its upper end face connects with the screw rod 3, and rotate the screw rod 3 to shrink the telescopic bracket legs 2 and enter into the bracket frame body 1, its state is as follows figure 1 , 2 shown.

[0013] 2. Initial support height setting

[0014] During the initial installation, the screw rod can be adjusted according to the thickness of the coal seam at the cut hole, so that the height of the support can be adapted to the thickness of the coal.

[0015] 3. Support adjustment when coal thickness changes

[0016] When the thickness of the coal seam becomes smaller, the telescopic support legs are cont...

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Abstract

The invention discloses a flexible shield support capable of fitting in with variation in thickness of a coal seam. A telescopic support leg is installed on a normal flexible shield support and connected with the flexible shield support through a screw rod. When the thickness of the coal seam changes, the extending length of the telescopic support leg is adjusted through the screw rod and the supporting range of the support is changed. Therefore, the support can fit in with a certain range of variation in thickness of the coal seam.

Description

[0001] Technical field: the present invention is a kind of support equipment applied to steeply inclined coal mining face. Background technique: [0002] The mining method of steeply inclined coal seams has always been a difficult problem in coal mining technology, which has attracted the attention of relevant state departments. For a long time, people have made unremitting efforts on this, and made gratifying progress. However, due to the particularity of mining conditions in steeply inclined coal seams, mining methods are still the main obstacle to improving the technical and economic aspects of such mines. Steeply inclined coal seam reserves account for 8% of my country's total coal reserves, while 80% of the mining areas in the south have steeply inclined coal seams. Therefore, the research on mining methods of steeply inclined coal seams still plays a very important role in the development of my country's coal industry. [0003] The mining method of steeply inclined coa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D15/14
Inventor 王琼陈刚张晓宇孙广义
Owner 王琼
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