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Bottom lifting mechanism for hydraulic bracket of thin coal bed

A technology of hydraulic support and thin coal seam, which is applied to mine roof support, mining equipment, earthwork drilling and other directions, can solve the problem that the lifting mechanism cannot use the hydraulic support of thin coal seam to lift the frame, and avoid the inability to lift the bottom, the expansion of space, The effect of improving the carrying capacity

Active Publication Date: 2014-04-09
CATERPILLAR ZHENGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a bottom lifting mechanism for thin coal seam hydraulic support, said bottom lifting mechanism should solve the technical problem that the common lifting mechanism in the prior art cannot be used for thin coal seam hydraulic support lifting

Method used

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  • Bottom lifting mechanism for hydraulic bracket of thin coal bed
  • Bottom lifting mechanism for hydraulic bracket of thin coal bed
  • Bottom lifting mechanism for hydraulic bracket of thin coal bed

Examples

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Embodiment Construction

[0015] The present invention will be described in further detail below through embodiments in conjunction with the accompanying drawings.

[0016] like figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 As shown, in this embodiment, it includes the first upper link 1, the second upper link 2, the first lower link 3, the second lower link 4, the rib plate 5 and the bottom lift jack, the first upper link The upper end of the connecting rod 1 and the second upper connecting rod 2 is hinged by a pin, the lower end of the first upper connecting rod 1 is hinged with the upper end of the first lower connecting rod 3, and the lower end of the second upper connecting rod 2 is connected with the second lower connecting rod 4 The upper ends are hinged, the first lower link 3 and the second lower link 4 are hinged on the rib plate 5, the first upper link 1, the second upper link 2, the first lower link 3 and the second lower link The structure formed by the rod 4 and the rib p...

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Abstract

The invention relates to a bottom lifting mechanism for a hydraulic bracket of a thin coal bed. The bottom lifting mechanism comprises a first upper connecting rod, a second upper connecting rod, a first lower connecting rod, a second lower connecting rod, a rib plate and a bottom lifting jack; the upper ends of the first upper connecting rod and the second upper connecting rod are hinged through a pin shaft; the lower end of the first upper connecting rod is hinged with the upper end of the first lower connecting rod; the lower end of the second upper connecting rod is hinged with the upper end of the second lower connecting rod; the position of a hinging shaft of the first upper connecting rod and the first lower connecting rod is hinged with one end of the bottom lifting jack; the other end of the bottom lifting jack is hinged on an ear plate of a base; the position of a hinging shaft of the second upper connecting rod and the second lower connecting rod is hinged with one end of another bottom lifting jack; and the other end of the another bottom lifting jack is hinged on the ear plate of the base. According to the bottom lifting mechanism for the hydraulic bracket of the thin coal bed, the bottom lifting mechanism can be reasonably arranged in a limited space of the base as much as possible so that the space of the bracket for the thin coal bed is enlarged as much as possible; a bottom lifting function can be better realized; and the problem that the thin coal bed cannot be used for lifting a bottom is avoided.

Description

technical field [0001] The invention relates to a hydraulic support for a comprehensive mechanized coal mining working face under a thin coal seam, in particular to a bottom lifting mechanism for a thin coal seam hydraulic support. Background technique [0002] With the shortage of energy, the pace of coal mining in my country is accelerating, and more and more mines are facing the problem of resource depletion. At present, thin coal seams are being mined, and a new type of frame that can be used for cover mining of thin coal seams has appeared. —Hydraulic support for thin coal seam, the support is composed of top beam, shield beam, base, column, connecting rod, balance jack, etc. However, thin coal seam is prone to soft bottom plate, because the base is relatively thin and the space is limited, it is impossible to install the commonly used lift The bottom mechanism makes it difficult to move the frame. Contents of the invention [0003] The object of the present invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D23/04E21D23/16
Inventor 宋新扩邵天旗魏连河卫智慧陈素芳陈真张召马玉贤张海建张卫警肖争光
Owner CATERPILLAR ZHENGZHOU
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