A multi-directional self-moving arch anti-shock advance hydraulic support

Abstract

The invention relates to a multi-directional self-moving arch anti-shock advance hydraulic support, which comprises a double telescopic column assembly, a supporting beam assembly, an arch beam assembly, a connecting frame assembly, a side support net assembly, a parking assembly, a driving wheel assembly, Universal wheel assembly, bottom beam. During the support operation, the double telescopic column assembly lifts the column to drive the support beam assembly to swing, so that the arch beam assembly is close to the roof of the roadway, and the side support net assembly is close to the side help of the roadway through the extension of the pushing hydraulic cylinder to realize the temporary support function ;The damping block assembly monitors the anti-collision, and the installation position has a multiple relationship with the advancing distance of the advanced hydraulic support, so as to avoid repeatedly supporting the top plate; the driving wheel assembly has the function of self-moving, the universal wheel assembly has the function of turning and going up and down, and the parking assembly supports the ground , to prevent slippage. The invention cooperates with equipment such as roadheaders and bolters to work together, has a high degree of automation, improves roadway driving efficiency, and has three-stage energy-absorbing and shock-absorbing functions to improve the safety of underground operations.

Description

technical field [0001] The invention relates to the field of coal mine machinery, in particular to a multi-directional self-moving arch-shaped anti-shock advance hydraulic support. Background technique [0002] Article 97 of the "Coal Mine Safety Regulations" (2016 edition) stipulates that the support must be strengthened within the influence range of the advance pressure of all the safety exits of the coal mining face and the connection of the roadway, and the length of the roadway to strengthen the support shall not be less than 20m. Since there are generally loader, crusher, belt conveyor and other equipment in the coal mining face transportation roadway, the self-moving advanced hydraulic support occupies a large area, which makes the support space within the advanced support range of the roadway very narrow, and the coal mine roadway is advanced. Difficult to support; most of the existing advanced hydraulic supports are aimed at flat roadways, and have poor adaptability...

AI Technical Summary

Problems solved by technology

Since the transport roadway of the coal mining face is generally equipped with reloading machines, crushers, belt conveyors and other equipment, the self-moving advanced hydraulic support occupies a large space, making the support space within the advance support range of the roadway very narrow, and the coal mine roadway ahead Difficult support; most of the existing advanced hydraulic supports are aimed at level roadways, and have poor adaptability to arched roadways. During the support process, there is no monitoring of the stress and strain of the surrounding rock, and it is difficult to find local undulations, heaving, rockfall, etc. , easy to cause casualties; due to the repeated loading and unloading of the roadway roof during the movement of the advanced hydraulic support, the roadway roof is loose and broken, which brings difficulties to the safety maintenance of the roadway. How to avoid damage to the roadway roof by the advanced hydraulic support is also A major problem in current advanced hydraulic support

[0003] Invention patent 201910746262.5 discloses a self-moving advanced support device without repeated support, which realizes non-repeated support and circular self-moving support in the advance support area of ​​the narrow support space along the working face transportation. Invention patent 201911043844.3 discloses a The crawler-type stack-type advance hydraulic support handling device is suitable for the handling work of the stack-type advance hydraulic support in the roadway of the fully mechanized mining face, but the track-type and crawler-type advance hydraulic supports are difficult to turn, the space utilization rate is not high, and the adaptability is poor; Invention Patent 202010235887.8 discloses an advanced support bracket and an advanced support bracket group, which can realize uniform stress on the top beam of the advanced support and evenly bear the load on the roof of the roadway, but this kind of advanced hydraulic support needs manual loading and unloading, and generally requires The laying of the track requires manual uprighting of the pillars, which does not get rid of the heavy physical labor, and the sliding support itself is unstable, which cannot guarantee the safe production of the working face

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