Advanced supporting system for bolt-mesh supporting and supporting method

Abstract

The invention discloses an advanced supporting system for bolt-mesh supporting. The advanced supporting system comprises a floor supporting body and a roof supporting body. The floor supporting body comprises a bearing block (9), a floor drilling preventing baffle (10) and a guiding plate (11), a vertically-through fixing groove (12) is formed in the middle of the bearing block (9), the guiding plate (11) is arranged in the fixing groove (12), and the floor drilling preventing baffle (10) is an arc plate. The roof supporting body comprises a front top beam protecting plate arranged at the front end of a top beam of an advanced hydraulic support (1), a rear top beam protecting plate arranged at the rear end of the top beam of the advanced hydraulic support (1), and a cylindrical pressure-bearing row (2), and the front top beam protecting plate comprises a plate-type pressure-bearing baffle (4) and a bar-type containing hopper (5). The advanced supporting system is simple in structure, low in cost and easy and convenient to operate.

Description

technical field [0001] The invention relates to the field of advance support for coal mine roadways, in particular to an advance support system and a support method for anchor net support. Background technique [0002] With the continuous improvement of the degree of mechanization of fully mechanized mining faces, under suitable geological conditions, major coal mines in my country have gradually used advanced support hydraulic supports. According to structural characteristics, advanced supports can be divided into: large mining height four-link advanced support hydraulic pressure Supports, self-moving hydraulic supports for advanced support, hydraulic supports for straddle-type advanced supports, and crawler-type advanced support hydraulic supports. The first three kinds of advance support hydraulic supports all need to take actions such as lowering, pulling (or pushing), lifting, adjusting, and then lowering and lifting when moving the frame. That is to say, there are tech...

AI Technical Summary

Problems solved by technology

However, the sliding friction generated by this method of moving the frame will seriously affect the service life of the frame, and will bring defects such as large forward resistance and extremely unstable walking, which will easily cause harm to the safety of roadway personnel.

[0003] At the same time, for all the current traditional advanced supports, the structure of pushing and moving the frame is mostly used, and the pushing and moving of the frame may cause problems such as the deflection of the support, the rollover of the support and the difficulty of moving the frame.

[0004] These problems are all relatively related. If one problem is not solved well, other problems will gradually become prominent, causing a great hidden danger to the safety of coal mining.

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