Advanced support combined unit suitable for soft rock excavation

Abstract

A kind of advanced support combined unit suitable for soft rock excavation, including tail unit, main unit, cutting part and conveying device, the front end of the main unit is provided with a forward beam, and its technical points: the main unit includes The main support group of the main unit and the auxiliary support group of the main unit are set in a staggered front: the main support group of the main unit includes the connecting plate I, the support cylinder I, the longitudinal beam I, the top beam I, and the side support plate I; the auxiliary support group of the main unit includes Connecting plate II, supporting cylinder II, longitudinal beam II, and top beam II; the stern unit includes the main support group of the stern unit and the auxiliary support group of the stern unit, which are arranged alternately from back to front: the main support group of the stern unit includes connecting plate III, supporting oil cylinder III, Longitudinal Beam III, Top Beam III, Side Support Plate II; Auxiliary Support Group of Tail Unit includes Connecting Plate IV, Support Oil Cylinder IV, Longitudinal Beam IV, Top Beam IV. It fundamentally solves the problems of poor safety and difficult backward operation 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 an advanced support type combined unit suitable for soft rock excavation. Background technique [0002] At present, for the tunneling of soft rock roadways, the cantilever type roadheader is mainly used to complete, and the main problems are as follows: the grounding pressure of the cantilever type roadheader is high, and when used in soft rock roadway, the roadheader is easy to sink into the weak connecting plate; When the cantilever roadheader cuts coal and rock, the load on the cutting head is large, and the vibration of the roadheader is large. In severe cases, it may even cause the body of the roadheader to yaw; The roof cannot be supported in a timely and effective manner. It is usually necessary to withdraw the roadheader and use special support equipment such as bolters to permanently support the roof, thus affecting the excavation efficiency. [0003] Existing compreh...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an advanced support type combination unit suitable for soft rock excavation, which fundamentally solves the problem of poor safety, narrow application range, difficult retreat operation, poor controllability, and problems in the excavation process of existing excavation machines. Easy to subside and other problems, it has the advantages of low equipment wear, stable travel, safe and reliable operation process, easy to control, etc.

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