A pulse-jet assisted roadheader

Abstract

The invention discloses a pulsed jet assisted heading machine. The pulsed jet assisted heading machine comprises two pulsed jet systems fixedly mounted on the two sides of the front end of a cantilever type heading machine correspondingly. Each pulsed jet system comprises a pulsed jet device, a posture adjusting mechanism and a distance adjusting mechanism, wherein the pulsed jet device, the posture adjusting mechanism and the distance adjusting mechanism are sequentially connected together, and the distance adjusting mechanism is fixedly mounted on the cantilever type heading machine. Each pulsed jet device comprises an energy storage system, an impact system and a spraying system. The pulsed jet assisted heading machine is compact in structure, a hard rock stratum with the hardness f larger than 10 can be rapidly eroded and weakened on the premise of not increasing the energy consumption, and then the purposes of improving the heading efficiency and reducing potential safety hazardsare achieved.

Description

technical field [0001] The invention relates to the field of roadheaders, in particular to a pulse jet assisted type roadheader. 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 arbitrary cross-sections. [0003] At present, water-jet assisted rock breaking is an environmentally friendly and safe rock-breaking method. The hea...

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Problems solved by technology

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a pulse jet assisted roadheader, which has a simple structure, high impact force, high work efficiency, and a pulse jet device for efficiently weakening the rock mass is designed and combined with the tunneling ability. Low-efficiency, high-cutting-efficiency roadheader is organically combined, and the pulse jet device is used to weaken the hard rock first, reducing the rock strength, realizing environmentally friendly and efficient weakened rock mass, and avoiding the failure and efficiency of the roadheader when mining hard rock. Problems of low and serious pick damage

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