Self movable forepoling support with caterpillar band top beam

Abstract

The invention relates to a self movable forepoling support with a caterpillar band top beam, which effectively solves the problems about bad stability and safety of a supporting structure. The self movable forepoling support with the caterpillar band top beam comprises a left part and a right part, wherein the left part and the right part have the same structure; each part is composed of two parts, namely a main frame and a sub frame, and the main frame and the sub frame have the same structure; the lower part of a main frame supporting mechanism is mounted on a support underframe; a main frame caterpillar band top beam is mounted at the upper part of the main frame supporting mechanism; the lower part of a sub frame supporting mechanism is mounted on a sub frame support base; a sub frame caterpillar band top beam is mounted at the upper part of the sub frame supporting mechanism; a main support base is hinged to and connected with a sub support base via a base push-and-pull jack; the rear end of the main frame caterpillar band top beam is connected with the front end of the sub frame caterpillar band top beam via the push-and-pull jack so as to form a support thrust mechanism; a telescopic box is hinged to and connected onto the space between the corresponding ends of the main frame caterpillar band top beam and the sub frame caterpillar band top beam; lateral beams with the lateral beam jacks are mounted on the corresponding surfaces on the inner sides of the main frame caterpillar band top beam and the sub frame caterpillar band top beam; pre-tightening mechanisms with the same structure are symmetrically mounted at two ends of a top beam supporting frame. The self movable forepoling support is safe and reliable to use and convenient to move and saves labor force.

Description

technical field [0001] The invention relates to coal mine machinery, in particular to a self-moving advanced support bracket with a crawler top beam. Background technique [0002] The advanced support methods of fully mechanized coal mining face mainly adopt two forms: single hydraulic prop with hinged top beam and common advanced hydraulic support. The single hydraulic prop is combined with the hinged top beam. The operation process is to remove the single hydraulic prop at the rear when the working face is pushed forward, and manually transport it to the front for re-support. The artificial support has low strength, small support area, and labor The strength is high, the number of people employed is high, the risk of returning to the column is high, and the efficiency is low. Other traditional support methods also have problems such as low degree of mechanization, high labor intensity, and poor stability and safety of the support structure. The common advanced hydraulic ...

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Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a self-moving advanced support bracket with a crawler top beam, which can effectively solve the problem of poor stability and safety of the support structure, low degree of mechanization, and difficult work. The problem of low efficiency and large damage to the roof by the support

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