Coal mine adaptive mobile diagonal positioning base plate anchor pole drilling jumbo

Abstract

The invention discloses a coal mine adaptive mobile diagonal positioning base plate anchor pole drilling jumbo comprising a chassis (1), a work member (2), an upper rack (3), and a device positioning member (4); the upper rack is fixed on the chassis; the work member is arranged on the chassis, and comprises a body (21), a front-back guide slot (22), a front-back positioning flange (23), a left-right guide slot (24), a left-right positioning flange (25), a drill rig mounting rack (26) and a drill rig (27); the device positioning member comprises positioning support bidirectional telescoping hydraulic cylinders (41) and a control valve block and a pumping station (42); two positioning support bidirectional telescoping hydraulic cylinders (41) are vertically fixed on diagonal positions of the upper rack or the chassis in a centrosymmetric manner; the coal mine adaptive mobile diagonal positioning base plate anchor pole drilling jumbo can fast drill a tunnel bottom plate while providing reverse direction support force in a drilling process, thus wholly improving anchor pole installation speed, and satisfying fast tunnel forming requirements.

Description

technical field [0001] The invention relates to a drilling trolley, in particular to a coal mine self-moving and diagonally positioned floor bolt drilling trolley which is suitable for drilling and bolting the bottom plate of a roadway in a coal mine, and belongs to the technical field of underground support equipment . Background technique [0002] Due to the different characteristics of the rock mass at different depths around the roadway and the different stress environments, the surrounding rock is prone to uncoordinated deformation due to factors such as geological periodic movement and groundwater pressure, especially for underground mining in coal mines. The surrounding rock will deform and move into the roadway. The phenomenon that the floor of the roadway or the gob floor rises upwards is called the floor heave. The floor heave is a dynamic phenomenon that often occurs in the mine roadway. It is related to the nature of the surrounding rock. , impact of mining, min...

AI Technical Summary

Problems solved by technology

[0004] Improve the strength of the surrounding rock of the floor, mainly including floor grouting, floor bolt support, etc. When using bolt support for the floor, it is necessary to drill the floor first. The traditional method needs to be above the drill pipe during the drilling process. Wooden columns or reverse air legs are used to support the roof of the roadway to provide reverse support. However, in order to ensure that the bottom plate of the roadway will not be damaged before the anchor is installed, the anchor must be installed within a certain distance from the excavation face. The size of this distance is related to the nature of the floor rock, and generally should not be greater than 10 meters. At the same time, in order to ensure that the roadway excavation speed is not affected, the bolt installation speed is usually fast, and this traditional drilling method is not only complicated and labor-intensive. The consumption of material resources is large, and the speed of drilling and installation of bolts is slow and the efficiency is low, which is not suitable for the requirements of rapid roadway formation

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