A Tunnel Drilling Rig with Adjustable Luffing Mechanism

Abstract

The invention provides an underground drill rig with an adjustable variable-amplitude mechanism. The underground drill rig comprises a rack with a caterpillar band, a turnover mechanism is installed on the rack, a mast assembly is arranged on the turnover mechanism, a drill rig head is installed on the mast assembly, and the position of the drill rig head on the mast assembly can be adjusted. The turnover mechanism comprises a pair of first supporting devices movably installed at the front end of the rack, the first supporting devices can rotate relative to the rack, and the two ends of each first supporting device can stretch and retract. A rotating shaft frame is arranged between the first supporting devices, a rotating disc which can rotate by 360 degrees is installed on the rotating shaft frame, and the mast assembly is fixed to the rotating disc. The rotating shaft frame is driven by a turnover oil cylinder, and the angle of the rotating shaft frame is adjusted through the turnover oil cylinder. The drill rig can pass through a narrow roadway; as the variable-amplitude mechanism is arranged, the position, the drilling angle and the like of the drill rig head can be adjusted in a large range, and thus the whole drill rig is higher in adaptability and universality.

Description

technical field [0001] The invention relates to a coal mine drilling equipment, in particular to a tunnel drilling machine with an adjustable amplitude-changing mechanism. Background technique [0002] The hydraulic tunnel drilling rig is a drilling rig developed in recent years for drilling exploration holes, gas drainage holes, water injection holes, and other engineering holes. It is divided into desktop assembly type and crawler walking type: the desktop assembly type needs manual handling, which is particularly inconvenient to use; while the crawler walking type is more convenient to use, but the existing tunnel drilling rigs with adjustable luffing mechanisms are bulky and cannot be used. It is suitable for the tunnel working face with small working space, let alone moving under complex road conditions. Existing tunnel drilling rigs with adjustable luffing mechanisms are equipped with multiple hydraulic control valves or steering valves in the hydraulic system in orde...

AI Technical Summary

Problems solved by technology

It is divided into desktop assembly type and crawler walking type: the desktop assembly type needs manual handling, which is particularly inconvenient to use; while the crawler walking type is more convenient to use, but the existing tunnel drilling rigs with adjustable luffing mechanisms are bulky and cannot be used. Adapt to the tunnel working face with small working space, let alone move under complex road conditions

Existing tunnel drilling rigs with adjustable luffing mechanisms are equipped with multiple hydraulic control valves or steering valves in the hydraulic system in order to be able to drill holes in multiple directions, resulting in complex systems, reduced reliability, and troublesome operation; The operating environment is complex, the stability requirements for the drilling rig body will be stricter, and the safety requirements for operators will be higher, but the existing crawler drilling rigs cannot meet the above requirements

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