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Large-stroke overall top beam suspension support

A technology of suspension support and large stroke, which is applied in mine roof support, mining equipment, earthwork drilling and mining, etc. It can solve the problems of production and safety impact, support equipment cannot meet the support requirements, and the inclination angle is unstable.

Inactive Publication Date: 2011-03-30
陈刚 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coal seams with large dip angles are characterized by unstable inclination angles and large changes in coal seam thickness. In the production of working faces under such conditions, the application of a set of existing support equipment often cannot meet the support requirements. Coal, and where the coal seam becomes thinner, it is necessary to lift the top or break the bottom, and the pillars need to be replaced frequently. The large gangue falling from the goaf impacts the rear pillars of the working face, which has a great impact on production and safety. Therefore, it is necessary to This kind of support equipment can adapt to the change requirements of coal seam thickness, reduce the impact of frequent replacement of pillars in large-inclination working faces, and prevent safety hazards caused by gangue impacting pillars

Method used

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  • Large-stroke overall top beam suspension support
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  • Large-stroke overall top beam suspension support

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Experimental program
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Effect test

Embodiment Construction

[0009] 1. Bracket installation

[0010] The large-stroke pillar is hinged with the top beam column groove through the connecting pin to form a large-stroke integral top beam suspension bracket.

[0011] 2. Adjust the height of the bracket

[0012] The support height of the stand is controlled by raising and lowering the pillar with a large stroke.

[0013] 3. Adjust the height of the baffle plate

[0014] When the height of the working face changes, the height of the baffle plate can be adjusted by adjusting the oil cylinder.

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Abstract

The invention discloses a novel overall top beam suspension support for assembling a large-stroke single hydraulic prop, which is applicable to support of a coal mine. The overall top beam suspension support has large expansion stroke; and the maximum support height of the support can reach 2-2.5 times of the minimum support height according to different selected props. The large-stroke overall top beam suspension support is characterized in that the prop is selected according to a working face condition, and the minimum height and the maximum height of the support are adjusted so as to adapt to back production of coal beds with different thickness, thus avoiding replacement of the single prop owing to frequent change of the thickness of the coal beds on the same working face, and reducing the total quantity of the standby props of the mine.

Description

[0001] Technical field: The present invention is a kind of support equipment applied to coal mining face with large inclination angle. Background technique: [0002] A high-dip coal seam generally refers to a coal seam with a coal seam dip between 35° and 55°. When the longwall working face is arranged in such a coal seam, the more advanced support equipment is the integral top beam suspension support. Coal seams with large dip angles are characterized by unstable inclination angles and large changes in coal seam thickness. In the production of working faces under such conditions, the application of a set of existing support equipment often cannot meet the support requirements. Coal, and where the coal seam becomes thinner, it is necessary to lift the top or break the bottom, and the pillars need to be replaced frequently. The large gangue falling from the goaf impacts the rear pillars of the working face, which has a great impact on production and safety. Therefore, it is nec...

Claims

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Application Information

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IPC IPC(8): E21D23/04E21D23/16
Inventor 陈刚孙广义王琼张晓宇岳强王新华
Owner 陈刚
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