Pedrail type liftable anchor bar anchor cable construction drill rig and double-lane fast digging technique

Abstract

The invention relates to a crawler type top slope anchor rod and anchor rope construction drill. The drill is mainly characterized in that a coal-pushing shovel is installed in front of a crawler walking part; a hydraulic drill used for the construction of the top anchor rod and anchor rope is installed in front of a drill platform and can rotate by 30 degrees to the left or the right, and the hydraulic drill used for construction of the slope anchor rod and anchor rope is installed at one side of the middle part of the drill platform and can rotate by 90 degrees to the left or the right; mechanical equipment used in a dual-lane fast tunneling technology comprises two comprehensive excavators or continuous mining machines, four crawler type top slope anchor rod and anchor rope construction drills, a scraper conveyer and a belt conveyer; and the process flow comprises: the comprehensive excavators or the continuous mining machines cutting coal, charging coal and transporting coal; unloading to a permanent support; the crawler type top slope anchor rod and anchor rope construction drill entering an operation place; the top slope anchor rod and anchor rope supporting; unloading to the permanent support; the comprehensive excavators or the continuous mining machines entering the operation place; reducing the labor intensity, and improving advance rate and creating safe operation environment.

Description

technical field [0001] The invention belongs to the coal mine underground tunneling technology, is a double-lane rapid tunneling technology suitable for large, medium and small coal mine anchor net support roadways, and is a rapid tunneling technology preferentially used in high gas mines, high outburst mines and low gas mines. craft. Background technique [0002] At present, the main methods of roadway excavation in various coal mines are continuous mining, continuous excavation, and fully mechanized excavation. Body drilling rig or crawler drilling rig, such as the mobile walking bolter disclosed in Chinese Patent No. 200420091861.7, has two drilling rig devices, two advanced supports, crawler type traveling mechanism, and the overall horizontal movement slideway and platform of the drilling rig device; The traveling mechanism is driven by a hydraulic motor, and the bolter platform is installed on the frame of the traveling mechanism; two hydraulic cylinder-type advanced ...

AI Technical Summary

Problems solved by technology

[0005] 2. The construction of roof anchor bolts and cables is non-mechanized and labor-intensive

The mine roof bolt and cable construction using the continuous mining and continuous excavation technology has basically realized mechanization, and the mine roof bolt and cable construction using the fully mechanized excavation technology is still a manual operation of a single drilling rig, while the auxiliary bolt and cable construction is all The excavation process is all carried out with hand-held pneumatic drills. The thrust of the drilling comes from the human arm and arm, and the labor intensity of the workers is high.

Since the construction of the anchor bolts and cables mainly relies on manpower, the construction quality of the anchor bolts and cables cannot be guaranteed fundamentally.

[0006] 3. Slow construction speed

It takes a lot of time to erect and dismantle scaffolding when the construction section exceeds 2 meters

[0007] 4. Low efficiency

Due to the large number of drilling holes and the large number of construction workers, the operation efficiency is low

[0008] 5. Low safety factor

The construction workers work alternately at high altitude, and the working safety environment is poor

[0009] 6. Long impact time

The existing continuous mining, continuous excavation double- or three-lane tunneling technology consists of a continuous mining machine or a high-power roadheader and a crawler bolter that are large in size and cannot work in the same tunnel at the same time. It is necessary to reverse the tunnel to realize excavation. Branch parallel operation, while the distance of the reverse roadway is from 20 meters to 110 meters, the impact time is long, and the tunneling speed has a great influence

[0010] 7. Too much invalid footage

The distance between cross-cuts should neither be too long nor too short; if the distance between cross-cuts is too long, the distance between continuous mining machines or high-power roadheaders and crawler bolters will be increased, and the impact time will be prolonged; if the distance between cross-cuts is too short, the construction of cross-cuts will The increase in the number will increase a lot of invalid footage

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