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Bullet mining hydraulic support

A technology of hydraulic support and blasting mining, which is applied in mine roof support, mining equipment, earthwork drilling and mining, etc. It can solve the problems of mutual replacement, insecurity, roof leakage, etc., and achieves reduced labor intensity and high frame stability , the effect of simple structure

Inactive Publication Date: 2006-08-30
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

However, when the frame is moved, it is necessary to manually straighten the column, and the sliding frame itself is an unstable mechanism, which has a low shielding rate for the roof. It happened, but the working surface is still low-yielding, inefficient, and unsafe
[0005] Fully mechanized mining hydraulic supports and π-beam single pillars or sliding supports have their own advantages and disadvantages in use, but they cannot replace each other

Method used

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  • Bullet mining hydraulic support
  • Bullet mining hydraulic support
  • Bullet mining hydraulic support

Examples

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Embodiment Construction

[0023] First refer to figure 1 and Fig. 2 illustrate according to the blast mining hydraulic support of the present invention, each blast mining hydraulic support includes three support sections, namely an intermediate support section 2 and two adjacent support sections 1, 3, and the three support sections are arranged in parallel. The intermediate support section 2 and the adjacent support sections 1 and 3 are basically the same in structure, the difference is that the guiding coupling mechanism and the pushing device used for the relative movement of the intermediate support section 2 and the adjacent support sections 1 and 3 are interactive structures, which are explained separately below .

[0024] With reference to Fig. 2, Fig. 5 and Fig. 8, wherein Fig. 2 is the side view of blast mining hydraulic support of the present invention, Fig. 5 and Fig. 8 are the side views of intermediate support section and adjacent support section respectively, but in Fig. 5 and Fig. 8 only...

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Abstract

The invention discloses cannon plucking liquid pressure supporting that includes three parallel frame burls that each has a base, which is installed a column and column flex device. The column connects to a top beam that installs telescopic girder and telescopic girder flex device. Coal blocking board and coal blocking board rotating device are set at the front of the top beam. Protecting beam connects to the base, and guiding coupling structure and pusher jack are installed between the top beam and the base. Each coal blocking board and flex beam has spraying device and a control device to control the flex device and spraying device.

Description

technical field [0001] The invention relates to support equipment used in mining, and more specifically relates to a mining hydraulic support. Background technique [0002] Coal mining uses different hydraulic supports depending on the size of the mine and different geological conditions. [0003] Large-scale mines adopt comprehensive mechanized coal mining, referred to as fully mechanized mining. The hydraulic support used has a stable and reliable frame type, which provides a safe and reliable working space for the comprehensive working face. It has many functions, complex structure, and heavy weight, which results in large investment, high cost per ton of coal, and inconvenient relocation. Therefore, the applicable coal seam geological conditions are limited. [0004] For small and medium-sized coal mines, blast mining is mainly used, and the support of the working face mostly uses π-shaped beams and single pillars. In recent years, some sliding supports have been develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D23/04E21D23/12E21F5/02
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