Large inclining angle fully mechanized hydraulic support anti-tilting and anti-sliding device

Abstract

The invention provides a large inclining angle fully mechanized hydraulic support anti-tilting and anti-sliding device which comprises a top beam movable side protecting board, a shield beam movable side protecting board, a movable adjustable frame beam, a pushing jack, a one-way lock, a one-way lock hydraulic pipe and an anti-sliding liquid feeding and returning pipe, wherein the top beam movable side protecting board, the shield beam movable side protecting board and the movable adjustable frame beam are arranged on an air way side of a hydraulic support of a large inclining angle mining working surface, the piston cavities of a top beam jack, a shield beam jack and an adjustable frame beam jack simultaneously feed or return the liquid through the anti-sliding liquid feeding and returning pipe, the piston cavity of the pushing jack is connected with the one-way lock on the anti-sliding liquid feeding and returning pipe through the one-way lock hydraulic pipe, one end of the anti-sliding liquid feeding and returning pipe is connected with a side protecting board jack hydraulic pipe of the lower cavity of a beam protecting board jack, and the one-way lock is opened when the hydraulic support in descending is pulled. The large inclining angle fully mechanized hydraulic support anti-tilting and anti-sliding device has the beneficial effects of being simple in operation, good for frame moving of the hydraulic support and capable of well controlling the falling of the hydraulic support, improving the production efficiency of the mining working surface and lowering the labor intensity of a worker.

Description

technical field [0001] The invention relates to support equipment for coal mines, in particular to an anti-fall and anti-skid device for fully mechanized mining hydraulic supports with a large inclination angle. Background technique [0002] Fully mechanized mining hydraulic supports are used in large-inclination coal mining faces, and are generally equipped with anti-fall and anti-skid devices to prevent the hydraulic support from sliding or falling during use. At present, in large-inclination coal mining faces, hydraulic The anti-fall and anti-slip mechanisms of the brackets are all set on the side of the machine lane of the hydraulic support, relying on the anti-fall and anti-skid device on the side of the hydraulic support machine to protrude and resist the adjacent hydraulic support below to prevent itself from sliding down, but this anti-skid and anti-skid There are many shortcomings in the inverted structure, which have a great impact on production. For example, the a...

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Problems solved by technology

[0002] Fully mechanized mining hydraulic supports are used in large-inclination coal mining faces, and are generally equipped with anti-fall and anti-skid devices to prevent the hydraulic support from sliding or falling during use. At present, in large-inclination coal mining faces, hydraulic The anti-fall and anti-slip mechanisms of the brackets are all set on the side of the machine lane of the hydraulic support, relying on the anti-fall and anti-skid device on the side of the hydraulic support machine to protrude and resist the adjacent hydraulic support below to prevent itself from sliding down, but this anti-skid and anti-skid There are many shortcomings in the inverted structure, which have a great impact on production. For example, the anti-fall and anti-slip device of the hydraulic support may not be able to stretch out due to the pressure of the roof, or after the anti-fall and anti-slip device is extended, due to the anti-slip and anti-slip device The thrust of the jack is relatively large. While resisting the lower hydraulic support, it also pushes up the main frame at the same time, so that the pulled hydraulic support is in tight contact with the hydraulic support above it, resulting in increased friction between adjacent hydraulic supports. As a result, it is difficult to move the hydraulic support frame. If the anti-fall and anti-skid device is contracted to reduce the friction between the hydraulic supports, then after the anti-fall and anti-skid device shrinks, the gap generated by the hydraulic support's slide will be filled with gangue, and the hydraulic support cannot return to its original position after moving in place. Therefore, an anti-fall and anti-skid device for large-inclination fully-mechanized mining hydraulic support is invented to overcome the shortcomings of existing anti-fall and anti-skid methods for large-inclination hydraulic support, and it is helpful for the promotion of fully-mechanized mining hydraulic support in large-inclination coal mining faces. The application in the

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