Single-column type advance support device of blasting work surface

A technology of advanced support and working face, which is applied in the direction of pillars/brackets, roof beams supporting mine roofs, mining equipment, etc., which can solve problems such as poor applicability, high cost, and complex structure, and achieve low cost, simple operation, and The effect of simple structure

Active Publication Date: 2013-01-23
徐州徐工精密工业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these devices are complex in structure, high in cost, and poor in applicability when the roof is uneven.

Method used

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  • Single-column type advance support device of blasting work surface
  • Single-column type advance support device of blasting work surface
  • Single-column type advance support device of blasting work surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] like figure 1 As shown, the single-column advanced support device for the blasting working face of the present invention includes a single hydraulic prop 1, a support top beam mechanism 2 is fixedly installed on the top of the single hydraulic prop 1, and a bottom end of the single hydraulic prop is installed with a Column shoes11. By installing the column shoe 11 at the bottom end of the single hydraulic prop 1, the pressure on the bottom plate can be reduced.

[0018] Support top beam mechanism 2 comprises the first fixed beam 3, the first left support beam 4, the first right support beam 5, the first left support beam 6 and the first right support beam 7, the middle part of the first fixed beam 3 Fixedly installed on the top of the single hydraulic prop 1, the first fixed beam 3 is perpendicular to the axis of the single hydraulic prop 1, the lower end of the first left support beam 4 is hinged with the left end of the first fixed beam 3, and the first right support...

Embodiment 2

[0023] The difference between this embodiment and Embodiment 1 is that the support top beam mechanism also includes a first middle support beam, the first left support beam and the first right support beam are connected through the first middle support beam, and the first middle support beam is connected with the first middle support beam. The right end of a left support beam is hinged with the left end of the first middle support beam, and the left end of the first right support beam is hinged with the right end of the first middle support beam. By arranging the first middle support beam, the support roof beam mechanism can be adapted to a more complicated roof shape.

Embodiment 3

[0025] like Figure 4 As shown, the only difference between this embodiment and Embodiment 1 is that the support top beam mechanism 2 also includes a second left support beam 9 and a second right support beam 10, and the lower end of the second left support beam 9 is hinged on the first The middle part of the fixed beam 3, the upper end of the second left support beam 9 is hinged on the left slider, and the left slider is slidably installed on the first left support beam 6, and the left slider and the first left slider are prevented from being installed on the left slider. A locking mechanism for the relative movement of the left support beam 6, the second left support beam 9 is equal in length to the first left support beam 4, the lower end of the second right support beam 10 is hinged at the middle part of the first fixed beam 3, the second right The upper end of support beam 10 is hinged on the right slide block, and right slide block is slidably installed on the first righ...

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PUM

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Abstract

The invention relates to a single-column type advance support device of a blasting work surface top plate. The single-column type advance support device of a blasting work surface comprises a single body hydraulic support and a support top beam mechanism mounted on the single body hydraulic support; the mechanism comprises a first fixing beam, a first left supporting beam, a first right supporting beam, a first left supporting beam and a first right supporting beam; the middle part of the first fixing beam is fixedly mounted at the top end of the single body hydraulic support; the lower end of the first left supporting beam and the lower end of the first right supporting beam are respectively hinged with left and right ends of the first fixing beam; the upper ends of the first left supporting beam and the first right supporting beam are hinged with the positions of the first left supporting beam and the first right supporting beam, which are close to the middle part; the lengths of the first left supporting beam and the first right supporting beam are equal; the right end of the first left supporting beam and the left end of the first right supporting beam are hinged; and the upper surfaces of the first left supporting beam and the first right supporting beam are contacted with the top plate. The single-column type advance support device has a simple structure, is convenient to operate, and can be applicable to a condition that the top plate is uneven.

Description

technical field [0001] The invention relates to a support device for the mine roof, in particular to a hinged single-column advance support device for the roof of the blasting working face. Background technique [0002] Regardless of whether coal is manually loaded or mechanically loaded at the blasting face, workers have to extract coal and install support under the newly exposed roof after blasting. Roof fall accidents occur from time to time, causing great personal danger to workers. In addition, dealing with falling gangue and filling the empty roof both increase the cost of coal mining, and processes such as reinforcing the bracket before blasting and supporting the shed after blasting increase the ineffective labor of workers. In order to avoid roof fall accidents during excavation, alternate or reversed advance supports composed of hydraulic supports are often used for advance support. However, these devices have complex structures, high cost, and poor applicability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D15/44E21D17/01E21D17/10
Inventor 孙义之缪保民
Owner 徐州徐工精密工业科技有限公司
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