Self moving type hydraulic forepole

Abstract

The invention relates to a self moving type hydraulic forepole. The self moving type hydraulic forepole comprises a protecting body box, a compensation oil cylinder, Pi-type steel, a bearing and a hanging bracket and is characterized in that the compensation oil cylinder is fixedly connected with the Pi-type steel and is fixed into the protection body box, the hanging bracket is composed of at least two connecting rods and a swing angle oil cylinder, the swing angle oil cylinder is fixedly connected with the ends of the connecting rods, the hanging bracket is connected with the connecting rodsthrough pins, four blocking teeth are mounted on the bottom of the protection body box, and the blocking teeth are connected with the protection body box through bearings. The site construction procedure can be simplified, an old type forepole needs to be dismounted one by one, time and labor are wasted, many hidden dangers exist, after the device is used, the labor intensity of a worker is reduced, the man hour use rate of construction can be improved, and time of half hour to one hour can be effectively saved.

Description

technical field [0001] The invention relates to a self-moving hydraulic forward probe beam. Background technique [0002] At present, the buried depth of the roadway constructed by our unit is more than 1100 meters, which is a typical deep roadway. Due to the high stress of ground pressure and the influence of mining, the original rock around it has been transformed into a soft rock state, and the deformation characteristics of the surrounding rock are mainly continuous. The time is long, and the displacement of the top, bottom and two sides is large. The roadway construction adopts the anchor net spraying support method, and the initial spraying of 30mm concrete is generally used as temporary support. The process is not only complicated, but also consumes a lot of physical strength of the workers and the existing safety hazards are not conducive to safe production, and faults are often encountered on site The construction environment with complex geological structures such...

AI Technical Summary

Problems solved by technology

The roadway construction adopts the anchor net spraying support method, and the initial spraying of 30mm concrete is generally used as temporary support. The process is not only complicated, but also consumes a lot of physical strength of the workers and the existing safety hazards are not conducive to safe production, and faults are often encountered on site , Caving and other complex geological structures in the construction environment, so when the initial spray 30mm concrete is used as temporary support, it is no longer able to meet the safety production requirements of the site

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