Continuously-viable cutting drilling machine

Abstract

The invention relates to a continuously-viable cutting drilling machine. The continuously-viable cutting drilling machine comprises a drill boom. A guide rail, a chain, a chain wheel, a drill pipe and a drill bit are arranged on the drill boom. The continuously-viable cutting drilling machine further comprises a movable arm, a cab, an air compressor, a platform assembly, a drill rod snubber and a cutting mechanism. The drill rod snubber and the cutting mechanism are arranged at the two ends of the drill boom respectively. The cutting mechanism comprises a power head, a brake, a feeding motor and a cutting motor. The feeding motor is used for providing downward-pressure for the drill pipe to feed and lift the drill pipe during drilling, the cutting motor is used for driving the drill pipe to rotate and providing the cutting torque needed in the drilling process, and the power head carries out transmission through a gear to reduce the rotating speed of the cutting motor, improve the output torque and output appropriate drilling rotating speed and the appropriate cutting torque to the drilling pipe so that the optimal drilling working efficiency can be improved and the loss of the drill bit can be lowered. By means of a guiding and limiting sleeve of the drill rod snubber, the drill pipe carries out operation stably and slightly moves up and down during working, the service life of the guiding and limiting sleeve is prolonged, the guiding and limiting sleeve is convenient to dismount and replace, and when abraded, the guiding and limiting sleeve can be replaced by taking down the drill bit.

Description

technical field [0001] The invention relates to the field of drilling machines, in particular to a cutting drilling machine capable of stepless speed regulation. Background technique [0002] Existing cutting drills have the following deficiencies: [0003] (1) Existing cutting drilling rigs only have a fixed speed and torque for the drill pipe, but the actual working conditions of cutting drilling are very complicated, and the rock hardness in different areas is different. Even if the rock hardness in the same area is also different, the required speed and torque are also different. different. Using fixed speed and torque in some rock formations can result in wasted energy, increased cost or inefficiency, and increased bit wear. [0004] (2) The engine speed and main pump flow rate of existing cutting drilling rigs cannot be adjusted according to the load, resulting in energy loss, which is not energy-saving and environmentally friendly. When the cutting drilling rig is ...

AI Technical Summary

Problems solved by technology

[0003] (1) Existing cutting drilling rigs only have a fixed speed and torque for the drill pipe, but the actual working conditions of cutting drilling are very complicated, and the rock hardness is different in different areas. Even if the rock hardness is different in the same area, the required speed and torque are also different. different

Fixed RPM and torque in some formations can result in wasted energy, increased cost or inefficiency, increased bit wear

[0004] (2) The engine speed and main pump flow rate of existing cutting drilling rigs cannot be adjusted according to the load, resulting in energy loss, which is not energy-saving and environmentally friendly

When the cutting drilling rig is not operated for a long time in the drilling gap, the engine is still running at high speed, resulting in high fuel consumption and increased use costs

[0005] (3) The air compressor is driven by the engine through the pulley. The main head of the air compressor is installed in the engine cover. The structure is complex and the working environment temperature is high. The service life of the air compressor head and belt is short, and the workload of belt replacement is large. And the installation is difficult, time-consuming and labor-intensive

[0006] (4) The limit sleeve is short and has poor guiding performance. The drill pipe swings seriously during work, and the service life of the limit sleeve is short. When replacing the limit sleeve, the drill pipe must be removed before proceeding.

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