Drilling machine for coal mine underground rail

Abstract

The invention provides a drilling machine for a coal mine underground rail. The machine comprises a drill bit, a driving assembly, a feeding assembly, a clamping assembly and a shaft sleeve assembly;the driving assembly comprises a pneumatic motor, a speed reducer and a transmission shaft, wherein the speed reducer and the transmission shaft are in transmission connection with the pneumatic motor, and the drill bit is fixedly connected with the transmission shaft; the feeding assembly comprises a feeding transmission supporting piece, a feeding gear shaft and a feeding handle, wherein the feeding transmission supporting piece is arranged in a speed reducer shell, the feeding gear shaft is arranged on the shell and is in meshed transmission with the feeding transmission supporting piece, and the feeding handle is fixedly connected with the feeding gear shaft; the clamping assembly comprises a clamping frame, a positioning clamping plate, two connecting arms, two clamping arms, a clamping handle, and an adjustable connecting piece; and the shaft sleeve assembly comprises a sleeve body, a sealing ring and a cooling liquid connector. The machine is portable and light, meets the coal mine underground explosion-preventing requirements, is simple, time-saving and labor-saving in operation during use, and is capable of improving the construction efficiency compared with similar devices in the prior art.

Description

technical field [0001] The invention relates to track drilling equipment, in particular to an underground track drilling machine for coal mines. Background technique [0002] Due to the needs of installation and use, underground rails in coal mines often need to be drilled, reamed and chamfered. Since the equipment used in underground coal mines must meet the explosion-proof requirements, electric rail drilling machines and internal combustion engine rail drilling machines are widely used on the ground. Because the electrical explosion-proof of the motor and the explosion-proof of the intake and exhaust of the internal combustion engine do not meet the requirements, the machine cannot be used in the underground environment of coal mines. If explosion-proof treatment is required, the volume, weight and cost will increase sharply, and the portability and lightness of the orbital drilling machine will be lost, and the cost will be relatively high. [0003] At present, manual h...

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Problems solved by technology

[0002] Due to the needs of installation and use, underground rails in coal mines often need to be drilled, reamed and chamfered. Since the equipment used in underground coal mines must meet the explosion-proof requirements, electric rail drilling machines and internal combustion engine rail drilling machines are widely used on the ground. Because the electrical explosion-proof of the motor and the explosion-proof of the intake and exhaust of the internal combustion engine do not meet the requirements, the machine cannot be used in the underground environment of coal mines. If explosion-proof treatment is required, the volume, weight and cost will increase sharply, and the portability and lightness of the orbital drilling machine will be lost, and the cost will be relatively high

[0003] At present, manual hydraulic punching machines are basically used in underground coal mine drilling operations. Although they can meet the requirements of portable, portable and explosion-proof working conditions, using manual hydraulic punching machines for hydraulic pressing and extrusion track punching is labor-intensive and efficient. very low

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