Self-moving stable drilling trolley for drilling of roadway floor anchor rod

Abstract

The invention discloses a self-moving stable drilling trolley for drilling of a roadway floor anchor rod. The stable drilling trolley comprises an under frame (1), a working component (2), an upper frame (3) and a device locating component (4), wherein the upper frame is fixedly arranged on the under frame; the working component is arranged on the under frame, and comprises a body (21), a front-back guiding mechanism (22), a front-back locating mechanism (23), a left-right guiding mechanism (24), a left-right locating mechanism (25), a drilling machine installation rack (26) and a drilling machine (27); the device locating component comprises a top locating and supporting hydraulic cylinder (41), a bottom locating and supporting hydraulic cylinder (42) and a control valve group and pump station (43); the control valve group and pump station is connected with the top locating and supporting hydraulic cylinder and the bottom locating and supporting hydraulic cylinder. According to the self-moving stable drilling trolley for drilling of the roadway floor anchor rod, disclosed by the invention, quick drilling on a roadway floor can be realized on the premise that a reverse supporting force is provided during a drilling process, so that the installation speed of the anchor rod is integrally increased, and the requirement of quick roadway excavation can be met.

Description

technical field [0001] The invention relates to a drilling jumbo, in particular to a self-moving roadway bottom plate bolting and stabilizing drilling jumbo suitable for drilling and bolting the roadway bottom plate in coal mines, 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, mining depth and geologica...

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 installing bolts is slow and the efficiency is low, which is not suitable for the requirements of rapid roadway formation

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