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Mining fast energy absorption erosion prevention yielding component

A component and anti-shock technology, which is applied in the field of rapid energy-absorbing anti-shock abdication support components, can solve problems such as deformation and damage of support materials or support equipment, and overall instability of the support system

Inactive Publication Date: 2012-08-01
LIAONING TECHNICAL UNIVERSITY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, once there is a sudden rock burst, the energy carried by the damaged surrounding rock will have a huge impact on the support system, resulting in instantaneous deformation and failure of the support material or support equipment, thus causing the overall instability of the support system.

Method used

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  • Mining fast energy absorption erosion prevention yielding component
  • Mining fast energy absorption erosion prevention yielding component
  • Mining fast energy absorption erosion prevention yielding component

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0015] The basic structure of energy-absorbing anti-shock abdication support components is based on the good bearing capacity of thin-walled metal pipes under axial compression and the high energy absorption rate when crushed. The component body can be made of metal materials, Other similar elastoplastic materials may also be used. Made into a thin-walled cylindrical structure with a special crease shape, it has better load-bearing and energy-absorbing characteristics. In terms of material selection, high-strength low-carbon steel plates or similar elastic-plastic materials are preferred.

[0016] The energy-absorbing anti-shock abdication support member is a thin-walled cylindrical structure with a special crease shape, which can be made into a polygonal structure or a ...

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PUM

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Abstract

The invention discloses a mining fast energy absorption erosion prevention yielding component. The component adopts a waved cylindrical structure comprising convex textures (52) and concave textures (53), wherein the convex textures (52) and the concave textures (53) are connected with each other according to a certain included angle (51). As the thin wall cylindrical structure in a specific wave shape is made of an elastic plastic material with high strength and large impact ductility, nominal support capability can be reached under the action of axial dead load, considerable elastic plastic compressive deformation yielding can be realized under the action of impact load, external impact can be eliminated fast, and impact energy can be absorbed efficiently. As support material or support equipment in a support system is protected from being damaged seriously, the safety of on-site working personal, and other production equipment are protected.

Description

technical field [0001] The invention relates to the field of coal mine support safety, in particular to a fast energy-absorbing anti-shock abdication support component that can be used in combination with existing support forms. Background technique [0002] Rock burst is one of the main dynamic disasters in mining engineering. With the increasing mining depth of mineral resources, the occurrence frequency and damage degree of rock burst are becoming more and more intense. When the impact occurs, a large amount of impact energy is released instantaneously, causing the roadway side, roof and bottom heave, and the overall support structure is unstable. Accidents such as equipment overturning, damage, and even casualties have seriously affected the safe mining of coal mines and the safety of on-site personnel. [0003] Rockburst (also known as mine earthquake or rockburst) is one of the major disasters in coal mines, and it is the instantaneous concentrated release of a huge e...

Claims

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Application Information

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IPC IPC(8): E21D15/50
Inventor 潘一山王洪英李忠华陈志才徐兴强肖永惠
Owner LIAONING TECHNICAL UNIVERSITY
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