Combined drilling unit

Abstract

The invention discloses a combined drilling unit which works together with various existing tunneling machines. After a hard rock tunnel is regularly punched by using the combined drilling unit, the rock mechanical property is improved, then the tunneling operation is carried out, the hard rock operation application range of the tunneling machine is enlarged, and the hard rock tunnel operation is completed by medium-small machines; and meanwhile, the combined drilling unit can be quickly dismounted from the tunneling machine and share a hydraulic source with the tunneling machine. The combined drilling unit specifically comprises a left hydraulic drilling assembly, a right hydraulic drilling assembly and a main girder assembly. The combined drilling unit has the advantages of simple structure, simple manufacture, low cost, and multiple and reliable actions; the hydraulic drilling assemblies have two space position states of drilling and cutting, wherein the hydraulic drilling assemblies and the cutting part of the tunneling machine are fixed together for drilling position states; and under the action of the main girder assembly, the hydraulic drilling assemblies are folded up and are arranged at the upper part of the tunneling machine body in order to be in a cutting position state, so that the combined drilling unit is free of influencing the cutting operation of the tunneling machine.

Description

technical field [0001] The invention relates to coal mine and hard rock roadway drilling machinery, in particular to a combined rock drilling unit that can be used in conjunction with various roadheaders, can be quickly installed and disassembled, and realizes drilling operations for the top of the roadway and side support. Background technique [0002] With the gradual deepening of coal mining, the geological conditions faced by roadheaders in the roadway operation process are gradually complicated, especially in the later stage of coal mining, the coexistence of coal and stone is very common. At present, the hard rock roadheader series, mainly EBZ200H, generally have large dimensions, which cannot be applied in small roadways, and the cost is high. [0003] Combined operation unit is the development direction of coal mine equipment. Among them, the integrated machine for digging and bolting and the integrated machine for drilling and digging are multi-functional roadheader...

AI Technical Summary

Problems solved by technology

At present, the hard rock roadheader series, mainly EBZ200H, generally have large dimensions and cannot be used in small roadways, and the cost is high

[0003]Combined operation unit is the development direction of coal mine equipment, among which the integrated drilling and bolting machine and the integrated drilling and digging machine are multi-functional roadheaders developed by various manufacturers, such as the application number ZL 200720014106.2 The bolter integrated with digging, bolting and protection solves the problems of waste of time caused by the separate work of the roadheader, bolter and support machine, and the problems of high strength and low efficiency of manual bolting. The bolter is installed on the roadheader to cut On both sides of the head, although the mechanism can realize the integrated operation of excavation, anchor and protection in principle, there are strict space constraints in the actual working process of the roadway, and the increase of the anchor protection mechanism will affect the normal operation convenience of the roadheader and the quality of roadway formation. Thereby limit the popularization of this equipment; Application number is the roadheader and drilling machine integration equipment that the integrated drilling machine of 200620090742.9 is designed for high gas roadway, this model can realize that the drilling structure does not affect the tunneling operation, but The drilling coverage is narrow, and drilling cannot be realized below the cutting part and at the top of the roadway. At the same time, the drilling depth of the structure is small, and it is necessary to frequently switch between drilling and excavation. Commonly used roadheaders such as EBZ160 and EBZ200 are suitable for coal rock hardness Generally, f<7; based on the analysis of existing equipment and patents, it can be obtained that bolters and drilling machines occupy a large space, and the power of pneumatic drilling is small; the adjustment range of hydraulic cylinders for horizontal angle and height angle adjustment is limited; Low is a problem with existing models

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