Stepping type tunneling support device suitable for tunneling in hard rock

Abstract

A walking-type excavation support device suitable for tunneling in hard rock roadways, including a tail unit, a main unit, a cutting unit, a shutter assembly, and a conveying device. The front end of the main unit is provided with a forward beam. The above-mentioned main unit includes the main support group of the main unit and the auxiliary support group of the main unit which are arranged staggered from back to front: the main support group of the main unit includes connecting plate I, supporting oil cylinder I, longitudinal beam I, top beam I, and side support plate I ; The auxiliary support group of the main unit includes the connecting plate II, the supporting cylinder II, the longitudinal beam II, and the top beam II; Including connecting plate III, supporting cylinder III, longitudinal beam III, top beam III, and side support plate II; the auxiliary support group of the stern unit includes connecting plate IV, supporting cylinder IV, longitudinal beam IV, and top beam IV. It fundamentally solves the problems of poor safety and poor controllability of existing roadheaders, and has the advantages of low equipment wear and stable travel.

Description

technical field [0001] The invention relates to the field of coal mine machinery, in particular to a step-type excavation supporting device suitable for excavation of hard rock roadways, which mainly completes the rapid advancement of roadway excavation operations by blasting. Background technique [0002] At present, there are mainly two methods for tunneling in hard rock roadways, one is to use a hard rock roadheader, and the other is to use blasting to complete. When cutting hard rock with a hard rock roadheader, the cutting head and equipment are severely damaged, and picks and other components often need to be replaced. In addition, after the cantilever roadheader cuts out a section of empty roof distance, the roof cannot be supported in time and effectively. It is usually necessary to withdraw the roadheader and use special bolter and other support equipment to permanently support the roof, thus affecting Drilling efficiency. When carrying out blasting operations, ma...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a step-type tunneling support device suitable for tunneling in hard rock, which fundamentally solves the problems of poor safety, narrow application range, difficult retreat operation, and poor controllability of existing tunneling machines. Low equipment wear, stable travel, safe and reliable operation process, easy to control, etc.

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