Multi-milling cutter processing device of multi-groove carving drilling rod

Abstract

The invention relates to a multi-milling cutter processing device of a multi-groove carving drilling rod. The multi-milling cutter processing device is characterized by comprising a rack, a driving mechanism and a milling mechanism, the driving mechanism and the milling mechanism are installed at the positions of a feeding port and a discharging port of the rack, the driving mechanism has a bidirectional driving function, the output end of the driving mechanism is provided with a screw guiding assembly for conveying and controlling surface milling grooves of the drilling rod, and the driving mechanism and the screw guiding assembly are matched with the rack through a first linear guide rail and a second linear guide rail; the position of the milling mechanism is provided with a gripper for clamping the drilling rod to prevent the drilling rod from retreating, the milling mechanism is provided with a plurality of milling cutter assemblies which can work selectively, and the milling cutter assemblies conduct groove milling operation according to the advancement rotational speed of the screw guiding assembly. According to the multi-milling cutter processing device, the milling mechanism of the multi-head milling cutter is adopted, meanwhile, groove milling operation is carried out on the drilling rod, the previous manner of one-by-one milling is avoided, and the production efficiency is greatly improved; and the quality and the service life of groove carving of the drilling rod are ensured.

Description

technical field [0001] The invention relates to a groove milling processing equipment, in particular to a multi-milling cutter processing equipment for a multi-groove grooved drill rod for coal drilling. It belongs to the technical field of drilling equipment. Background technique [0002] Mine gas control is a prerequisite for safe production in coal mines, and arranging gas drainage boreholes is a common measure for mine gas control. At present, there are three kinds of drill pipes commonly used in China: one is a smooth drill pipe that relies on wind or hydraulic slag removal, the other is a spiral drill pipe that relies on mechanical power to remove slag, and the other is a drill pipe that relies on eddy current loosening and wind force. Slagging triangular drill pipe. The above three types of drill pipes have the following defects in the drilling process of soft coal seams: smooth drill pipes have weak slag removal ability and are prone to hole blockage during the dri...

AI Technical Summary

Problems solved by technology

The above three types of drill pipes have the following defects in the drilling process of soft coal seams: smooth drill pipes have weak slag removal ability and are prone to hole blockage during the drilling process of soft coal seams; In the area where the hole collapses or the hole wall shrinks significantly, the phenomenon of drill sticking and drill drop is prone to occur; although the triangular drill pipe causes eddy current flow under high-speed rotation and forms a slag discharge channel, the slag discharge channel formed by the vortex flow of the drill pipe is small , the slag removal ability is weak, and when the hole collapses, it is easy to get stuck

[0004] The traditional processing method of grooved drill pipe is turning on a lathe or milling with a milling cutter. When processing a double or triple flute drill pipe, it needs to be repeatedly processed two to three times. , there is a lateral force on the entire rod body, which causes the milling depth to change during long-distance milling, which greatly affects the production efficiency and quality of the drill rod

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