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Single-column type advance support device of blasting work surface

A technology of advanced support and working face, which is applied to pillars/brackets, roof beams supporting mine roofs, mining equipment, etc., can solve the problems of complex structure, high cost, poor applicability, etc. simple structure

Active Publication Date: 2015-03-25
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 excavation face of the present invention includes a single hydraulic strut 1, a support top beam mechanism 2 is fixedly installed at the top of the single hydraulic strut 1, and the bottom end of the single hydraulic strut is installed with Post shoes 11. By installing the column shoe 11 at the bottom end of the single hydraulic column 1, the pressure on the bottom plate can be reduced.

[0018] The support top beam mechanism 2 includes a first fixed beam 3, a first left support beam 4, a first right support beam 5, a first left support beam 6 and a first right support beam 7. The middle part of the first fixed beam 3 It is fixedly installed on the top of the single hydraulic strut 1, the first fixed beam 3 is perpendicular to the axis of the single hydraulic strut 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 only that the supporting top beam mechanism further includes a first middle supporting beam, the first left supporting beam and the first right supporting beam are connected by the first middle supporting beam, and the first supporting beam is connected by the first middle supporting 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 difference between this embodiment and Embodiment 1 is only that the supporting roof 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, the left slider is slidably installed on the first left support beam 6, and the left slider and the first left slider are installed on the left slider. A locking mechanism for the relative movement of the left support beam 6, the second left support beam 9 has the same length as the first left support beam 4, the lower end of the second right support beam 10 is hinged in the middle of the first fixed beam 3, the second right The upper end of the support beam 10 is hinged on the right slider, the right slider is slidably installed on the first right support beam 7, and a lock is...

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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 roof of a mine, in particular to an articulated single-column advance support device for the roof of a blasting working face. Background technique [0002] Whether it is manual coal loading or mechanical coal loading on the blasting face, workers must discharge coal and install supports under the newly suspended roof after blasting. Roofing accidents often occur, causing great personal danger to workers. In addition, dealing with the falling gangue and filling the empty roof increase the cost of coal mining, and the procedures such as reinforcing the bracket before firing the gun and supporting the shed after the firing increase the ineffective labor of the workers. In order to avoid the roof collapse accident during the excavation, the alternating or reversible advanced support composed of hydraulic support is now used for advanced support. However, these devices have complex structures, high cost, an...

Claims

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Application Information

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Patent Type & Authority Patents(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