Drilling and bursting type heading machine

Abstract

The invention discloses a drilling and bursting type heading machine which comprises a drilling and bursting device, an angle control device, a front-back telescopic device and a cantilever type heading machine body. The drilling and bursting device is installed on a front-back moving component of the front-back telescopic device. The front-back telescopic device is installed on the cantilever type heading machine body. The drilling and bursting device comprises a fixing frame, a rock drill component and a bursting device component, wherein the rock drill component and the bursting device component are fixed to and installed on the fixing frame. The angle control device comprises an installation base, an auxiliary rotary hydraulic motor, an adjusting hydraulic cylinder and a main rotary hydraulic motor. When the front-back moving component of the front-back telescopic device completely stretches out, the distance between the front end of the drilling and bursting device and a working surface is smaller than the distance between the front end of a cutting head of the cantilever type heading machine body and the working surface. The drilling and bursting type heading machine is compact in structure, a hard rock stratum with the rock stratum hardness being larger than 10 can be rapidly drilled and burst on the premise that the energy consumption is not increased, and accordingly the purposes of improving the heading efficiency and reducing potential safety hazards are achieved.

Description

technical field [0001] The invention relates to a roadheader, in particular to a drill-increase type roadheader suitable for excavation and excavation of roadways in hard rock formations with a hardness of f>10, and belongs to the technical field of roadheader equipment. Background technique [0002] The roadheader is a machine used to excavate a straight underground roadway. It is divided into an open type roadheader and a shield type roadheader. It usually consists of a walking mechanism, a working mechanism, a loading mechanism and a reloading mechanism. As the walking mechanism advances, The cutting head in the working mechanism continuously breaks the rock and transports the broken rock away, which has the advantages of safety, high efficiency and good roadway quality, especially the cantilever type roadheader, which integrates the functions of cutting, loading, walking and operation It is mainly used to cut underground rock, coal or semi-coal rock roadways with arbi...

AI Technical Summary

Problems solved by technology

[0003] At present, in the excavation of all hard rock roadways in China, drilling and blasting rock excavation will still be a main method for a long time. The heavy-duty cantilever type roadheader is in the experimental stage for large-section rock roadway excavation in China, and the cutting power is large. The whole rock roadway heavy-duty cantilever roadheader with high cutting efficiency, stable work and good dust removal system will represent the future development direction of rock roadway excavation technology; in rock roadway with low hardness f10, the cantilever roadheader not only has extremely low efficiency but also increases energy consumption. , and the picks fall seriously, or even can not be excavated. Usually, the excavation machine needs to be withdrawn to a safe distance and then excavated by drilling and blasting the rock. Excavation has become the bottleneck of the development of excavation mechanization in our country

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