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Mining edge floating hydraulic support

A hydraulic support, floating technology, applied in mine roof support, mining equipment, earth square drilling and mining, etc., can solve the problems of hidden dangers in mining production safety, reduced hydraulic support support effect, small effective support area, etc., to achieve good support effect, The effect of large contact surface and firm foundation

Active Publication Date: 2019-09-06
TANGSHAN DONGHUA IRON & STEEL ENTERPRISE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the existing hydraulic support encounters high geological hardness, there will often be a large gap between the roof of the hydraulic support and the roof of the roadway, the effective support area is small, and the support effect of the hydraulic support is greatly reduced, which brings great harm to mineral production. Security risks

Method used

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  • Mining edge floating hydraulic support
  • Mining edge floating hydraulic support
  • Mining edge floating hydraulic support

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing.

[0013] like Figure 1-3 As shown, a mining edge floating hydraulic support includes a base 1 and a support top 3, the base and the support top are connected by four hydraulic telescopic rods 2, and the edges of the upper end surface of the support top are evenly arranged A plurality of hydraulic jack blocks 4 are arranged in the cloth. Each hydraulic jack block can be adjusted in height as needed,

[0014] The supporting top seat 3 has four walls and a bottom, forming a pool-like semi-open chamber, inside which is laid with fine sand, and the bottom has a leak hole 9, which communicates with the piston cylinder 5 below the leak hole, and the bottom of the piston cylinder is installed There is a piston 6 that slides up and down, the bottom of the piston is connected with a piston driving plate 7, and the two ends of the piston driving plate are respectively installed with ...

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PUM

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Abstract

The invention discloses a mining edge floating type hydraulic support comprising a base and a supporting top seat. The base and the supporting top seat are connected through four hydraulic telescopic rods. A plurality of hydraulic top blocks are evenly arranged on the edge of the upper end face of the supporting top seat. The supporting top seat is provided with four walls and a bottom to form a water-tank-shaped half-open chamber. Fine sand is laid inside the water-tank-shaped half-open chamber. The bottom is provided with a leaking hole. The leaking hole downward communicates with a piston cylinder. A piston sliding up and down is mounted on the lower portion of the piston cylinder. The bottom of the piston is connected with a piston driving plate. Telescopic hydraulic columns are mounted at the two ends of the piston driving plates correspondingly. The other ends of the telescopic hydraulic columns are connected with the bottom of the supporting top seat.

Description

technical field [0001] The invention relates to a mining edge floating hydraulic support. Background technique [0002] When the existing hydraulic support encounters high geological hardness, there will often be a large gap between the roof of the hydraulic support and the roof of the roadway, the effective support area is small, and the support effect of the hydraulic support is greatly reduced, which brings great harm to mineral production. Security risks. Contents of the invention [0003] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a mining edge floating hydraulic support, which supplies fine sand to the gap through the hydraulic support itself to fill the gap between the hydraulic support and the roof of the roadway. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: a mining edge floating hydraulic support, including a base, and a support top, the base and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D23/04E21D23/16
Inventor 燕胜姚智鑫
Owner TANGSHAN DONGHUA IRON & STEEL ENTERPRISE GRP CO LTD