Development machine

Abstract

The invention discloses a development machine. The development machine comprises a tunneling main body (1), wherein an auxiliary drilling device is arranged on the tunneling main body (1), and comprises a drilling machine (21) and a first mounting rack which is connected with the tunneling main body (1); and the drilling machine (21) is arranged on the mounting rack, and the drilling direction of the drilling machine (21) is the same as the tunneling direction of the development machine. The development machine also comprises a first driving device for driving the drilling machine (21) to drill. Before the development machine drives a hard rock formation, the drilling machine can be used for drilling the rock formation to destroy the organization structure of the rock formation, so a rock formation blasting mode of the prior art before tunneling is replaced, which is favorable for guaranteeing the safety of equipment and operation staffs and improves the safety of tunneling operation; and besides, the development machine can be applied to hard-rock tunnels in which blasting cannot be implemented, and has a wide application range.

Description

technical field [0001] The invention relates to the technical field of coal mining machinery, in particular to a roadheader. Background technique [0002] With the rapid development of my country's economic construction, the coal industry continues to develop in the direction of mechanization and automation, and comprehensive mechanical mining equipment is more and more widely used in coal production under various geological conditions. [0003] In the operation of mechanized mining, the roadheader is one of the main mining equipment, and the excavation of the roadway is realized through the rotary cutting of the cutting head. In the tunneling process of coal mine roadway, the roadheader is mainly used to excavate coal rock, semi-coal rock or rock roadway. The hardness of coal rock and semi-coal rock is relatively low, and the roadheader can usually excavate normally. [0004] However, the hardness of the rock roadway is relatively high, and the roadheader can only economic...

AI Technical Summary

Problems solved by technology

[0004] However, the hardness of the rock roadway is relatively high, and the roadheader can only economically excavate the roadway with relatively low rock hardness. At present, the rock roadway boring machine is mainly designed for the surface pressure of the rock with a Platinum hardness coefficient of 8 or less. The higher the hardness, the lower the mining efficiency of the roadheader, and the service life of the roadheader is relatively low under the mining conditions with relatively high hardness; Excavation is achieved, that is, explosives of predetermined strength are buried in the rock formation, and the rock is blasted when the explosives are detonated to realize the tunneling of harder rock formations

[0005] However, the risk of blasting work is relatively high. During the blasting process, there will be a lot of rock fragments collapsing at high speed, which will cause certain damage to coal mining equipment such as roadheaders. Such as damage to coal mining equipment, but because the blasting work is affected by many unknown factors, and it is easy to damage the excavation face, the risk is relatively high, it is easy to cause casualties, and there is a relatively large safety hazard

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