Single-arm onboard roof bolter for underground coal mine

Abstract

The invention belongs to the technical field of an underground coal mine short-wall exploitation device, and particularly relates to a single-arm onboard roof bolter for an underground coal mine, which solves the problems of the existing anchor support device. The single-arm onboard roof bolter comprises a rotating base, a cantilever, an operating platform assembly, a drilling arm rotating device and a drill frame, wherein the movable rotating base capable of rotating horizontally is a base for connecting the single-arm onboard roof bolter and equipment, the cantilever is supported on the rotating base, the cantilever is of an inner-outer sleeve structure, one end of the cantilever is connected with the rotating base through a horizontal hinge shaft, the other end of the cantilever is hinged to the operating platform assembly, the drill arm rotating device is installed on the front end of the operating platform assembly, and the drill frame can be installed on the front end of the operating platform assembly in a rotating manner. The single-arm onboard roof bolter is used for supporting other coal mine equipment mining machinery, roadway repairing machinery and the like, can move back and forth on a track provided by the equipment by adopting the hydraulic oil as a power source, has multiple degrees of freedom such as extension, rotation and the like and can realize the anchor installation construction of a whole section.

Description

technical field [0001] The invention belongs to the technical field of underground short-wall mining equipment in coal mines, and in particular relates to a single-arm airborne bolter for underground coal mines. Background technique [0002] In the repair construction of the underground roadway in the coal mine, the empty head distance is required to be very small, and it is necessary to follow the construction process and carry out bolt support in time. The existing single-arm bolter is mainly used for equipment such as roadheaders, and is attached to the cutting arm of the roadheader, relying on the cutting arm of the roadheader with sufficient rigidity as the drill frame support, and at the same time, due to the large space of the cutting arm Due to the limitation of the drill frame, only one side of the bolt installation can be realized, and a single drill frame does not have the ability to install the full-section bolt of the roadway. The single-boom drilling rig of th...

AI Technical Summary

Problems solved by technology

The existing single-arm bolter is mainly used for equipment such as roadheaders, and is attached to the cutting arm of the roadheader, relying on the cutting arm of the roadheader with sufficient rigidity as the support of the drill frame. At the same time, due to the large space size of the cutting arm Due to the limitation of the drilling rig, only one side of the anchor rod can be installed, and the single drill rig does not have the ability to install the full-section anchor rod of the roadway.

The single-arm drilling rig of the rock drilling rig has a small load capacity, a small swing angle range, and no operating platform. During the roadway repair process, it is not convenient to manually handle the roof and old bolts.

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