Overhaul device for top beam of hydraulic support with large mining height and application thereof

A technology of hydraulic support and maintenance device, which is applied to mine roof support, mining equipment, earthwork drilling and other directions, can solve problems such as affecting the efficiency of maintenance operations, affecting mining operations, and troublesome maintenance operations, saving underground space, and achieving remarkable results. The effect of improving safety

Inactive Publication Date: 2015-12-30
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When performing maintenance work on the top beam of the large mining height hydraulic support underground, due to the special explosion-proof working environment and narrow working space in the mine, the use of electric drive equipment and heavy lifting equipment is limited, which makes the maintenance work very inconvenient , the maintenance operation is more troublesome, which greatly affects the efficiency of maintenance operations, and even affects the progress of the entire mining operation.

Method used

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  • Overhaul device for top beam of hydraulic support with large mining height and application thereof
  • Overhaul device for top beam of hydraulic support with large mining height and application thereof
  • Overhaul device for top beam of hydraulic support with large mining height and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Such as figure 1 As shown, this embodiment provides a maintenance device for the top beam of hydraulic supports with large mining heights, including a double telescopic lifting jack A1 and a double telescopic lifting jack B13, a maintenance platform 5, a driving rod 3, a guide link 2 and a single telescopic lifting jack. Driving jack 12, one end of lifting jack A1 and lifting jack B13 are hinged on hydraulic support top beam 6, the other end is hinged with maintenance platform 5, one end of driving rod 3 is hinged with lifting jack B13, and the other end is hinged with guide rod 2 and drive Jack 12, one end of the driving jack 12 is hinged on the hydraulic support top beam 6, and one end of the guide link 2 is hinged on the hydraulic support top beam 6, wherein the hinge point of the guide link 2 and the top beam ear seat and the lifting jack ( Including lifting jack A1 and lifting jack B13) and the hinge point of the top beam ear seat are at the same level, and the ins...

Embodiment 2

[0042] Such as figure 2 As shown, this embodiment provides an overhaul device for the top beam of hydraulic supports with large mining heights. , the hydraulic system includes a driving jack hydraulic drive system, a lifting jack hydraulic drive system and an emulsion pumping station, which provides power for the working face emulsion pumping station. The driving jack hydraulic drive system includes a hydraulic lock 18, a three-position four-way reversing valve 19, a filter 21, a stop valve 23, a safety valve 25, a first oil circuit and a second oil circuit, and the driving jack 12 passes through the hydraulic lock 18 It is connected with the three-position four-way reversing valve 19, and the three-position four-way reversing valve 19 is connected to the filter 21 and the stop valve 23 through the first oil circuit, and then connected to the oil inlet pipeline P of the emulsion pump station, and the three-position four-way reversing The valve 19 is also connected to the oil...

Embodiment 3

[0051] Such as image 3 As shown, this embodiment provides a working method for the overhaul device for the top beam of the large mining height hydraulic support as described in Embodiment 2, including the following steps,

[0052] (1) The driving jack 12 is supplied with oil to start, the piston rod of the driving jack 12 stretches out, and the hinge point of the driving jack 12 and the driving rod 3 is constrained by the guide connecting rod 2 to perform circular rotation (by image 3 Point A2 in the movement to point A), the hinge point of the driving rod 3 and the lifting jack B13 rotates in a circle around the hinge point of the lifting jack B13 and the hydraulic support top beam 6 (by image 3 Point B2 in the middle moves to point B), promote lifting jacks 1, 13 and inspection platform 5 to rotate to the vertical locked state;

[0053] (2) After the step (1) is completed, the lifting jacks 1 and 13 are started to supply oil, and the piston rods of the lifting jacks 1 an...

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Abstract

The invention relates to an overhaul device for a top beam of a hydraulic support with large mining height and application thereof. The overhaul device comprises a lifting jack, an overhaul platform, a driving rod, a guide connecting rod and a driving jack, wherein the lifting jack is respectively articulated with the top beam of the hydraulic support and the overhaul platform, one end of the driving rod is articulated with the lifting jack, the other end of the driving rod is connected with the guide connecting rod and the driving jack, and the driving jack and the guide connecting rod are respectively articulated on the top beam of the hydraulic support. According to the invention, the current situation of difficulty in maintenance of an underground top beam valve set of the hydraulic support with large mining height is solved; a double-telescopic jack is combined with the overhaul platform and the top beam of the hydraulic support to form a parallel four-link mechanism, so that the two-dimensional rotation and lifting action of the overhaul platform are realized, the underground space can be effectively saved, and a coal mining machine is prevented from passing through; and meanwhile, a single-telescopic jack is embedded in a locking mechanism to be combined with the parallel four-link mechanism to finish the two-dimensional translation driving and locking of the overhaul platform, thereby increasing the safety.

Description

technical field [0001] The invention relates to a maintenance device for a top beam of a large mining height hydraulic support and an application thereof, belonging to the technical field of coal mining equipment. Background technique [0002] In the mining of coal mines, the hydraulic support, the shearer, and the scraper conveyor are collectively called "three machines". Safety is an indispensable support equipment in coal mining work. Due to the long mining length of the current working face, a large number of hydraulic supports are required for each working face. During the mining work, if any problem with any support cannot be dealt with in time, it will affect the smooth progress of the mining work. The hydraulic supports currently used, especially those with large mining heights and extra large mining heights, have a high top beam height, and there are many vulnerable parts on the top beam of the hydraulic support, such as the top beam valve group, side guard jacks, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D23/16
Inventor 曾庆良孟昭胜杨扬逯振国王庆友张海忠孔帅王泽华高忠燕王新超
Owner SHANDONG UNIV OF SCI & TECH
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