Drill bushing assembly and novel drill box for automatic anchor protection operation

Abstract

The invention provides a drill bushing assembly and a novel drill box for automatic anchor protection operation, and belongs to the technical field of roadway supporting, and the drill box comprises a drill box body, a drill box motor, a motor transmission shaft, a damping piece, a damping type anchor rod, a drill bushing and an abutting column. Wherein the drilling box motor and the liquid distribution plate are mounted on the drilling box body, and the drilling sleeve is connected with the motor transmission shaft to transmit torque; the tray clamping claws are symmetrically assembled on the drilling box body in a detachable mode and can limit the anchor rod tray. The drill bushing is provided with the damping piece disengaging hole in a double-inclined-face mode, the damping piece can be disengaged through the damping piece disengaging hole in the anchoring process, the drill bushing is in a multi-face limiting mode, and therefore the drill rod is more convenient to disassemble. According to the drilling box, the reliability is improved, the service life of the drilling box is prolonged, the working safety and efficiency are improved while the labor intensity of automatic anchor protection operation is reduced, and the automation and standardization progress of the anchor protection operation is promoted.

Description

technical field [0001] The invention belongs to the technical field of roadway support, and specifically discloses a drill sleeve assembly and a novel drill box for automatic anchoring operation. Background technique [0002] The underground mining method is the main mining method of coal resources in China. The support working face is a densely distributed workplace for mine operators, and the support work is carried out immediately after the tunnel is excavated, and the operating environment is also relatively harsh. The traditional supporting process mainly relies on manual drilling and anchoring. There are defects such as single function of anchoring equipment, poor matching coordination, low operation efficiency, many people, and poor safety. Therefore, it is easy to cause serious mining imbalance. [0003] At present, the intelligent anchoring machine has begun to be developed and gradually replaced the traditional bolting machine. It is found through experiments that ...

AI Technical Summary

Problems solved by technology

The traditional support process mainly relies on manual drilling and anchoring, which has defects such as single function of anchoring equipment, poor matching coordination, low operating efficiency, large number of people, and poor safety, so it is easy to cause serious imbalance in mining

[0003] At present, the intelligent anchoring machine is beginning to be developed and gradually replaces the traditional bolting machine. After testing, it is found that the following problems are prone to occur when using an ordinary drilling box for automatic anchoring operations, resulting in failure of the drilling box

[0004] (1) At present, the bolts commonly used in coal mines are damping bolts, and the tail is equipped with damping parts. During the fastening process of the bolt, it is judged whether the torque of the bolt is fastened in place by whether the damping parts are twisted. Parts fall off into the drill sleeve, with the increase of the number of operations, the accumulated damping parts will affect the normal use of the drill box

[0005] (2) According to the technical specifications and standards of bolt support, the orientation of the anchor trays that have completed the work must be consistent. During the stirring and fastening process of the anchor bolts in the ordinary drilling box, the trays will rotate with the anchor bolts, and the orientations will be randomly distributed. Workers need to correct the orientation of the pallets one by one, which requires a large amount of labor

[0006] (3) According to the hexagonal shape of the anchor rod, the contact surface between the inside of the drill sleeve and the anchor rod of the ordinary drill box is designed as an inner hexagon to limit the anchor rod. However, during the process of replacing the drill rod, the limit surface must be squared Can be installed, due to the low illumination environment underground, the replacement process takes a long time

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