Cantilever-type heading machine

Abstract

The invention discloses a cantilever-type heading machine. The machine comprises a chassis, a cantilever-type cutting part, a loading shovel plate, a scraping plate conveyor and star wheels or rakingclaws; the scraping plate conveyor is arranged between double crawler-type walking parts, and the conveyor tail of the scraping plate conveyor is arranged on the loading shovel plate; the star wheelsor raking claws are rotatably installed on the loading shovel plate and distributed at the two sides of the vertical center line of a chute at the conveyor tail of the scraping plate conveyor; three or more star wheels or raking claws are installed on the loading shovel plate, two or more star wheels or raking claws are distributed at one side of the scraping plate conveyor, one or more star wheels or raking claws are distributed at the other side of the scraping plate conveyor, and the adjacent star wheels or raking claws at the same side of the scraping plate conveyor are distributed left and right. According to the cantilever-type heading machine, when the loading width is increased, a loading device and the cantilever-type cutting part cannot interfere each other, and accordingly structural optimization of equipment is facilitated.

Description

technical field [0001] The invention relates to the technical field of roadheaders, in particular to a cantilever type roadheader. Background technique [0002] The traditional cantilever-type longitudinal-axis roadheader has a history of about 70 years. Its chassis includes a frame body and a double crawler running part. The frame body is connected to the crawler running part. The front part of the chassis is set There is a loading device, and a scraper conveyor is arranged between the double crawler-type running parts, and the tail of the scraper conveyor is arranged on the shovel of the loading device. This model has a series of advantages such as simple and reliable structure, relatively easy processing and manufacturing, low cost, good adaptability, and small installation and withdrawal workload. The cantilever-type horizontal-axis roadheader whose cutting drum width is smaller than the width of the roadway to be constructed, in addition to the advantages of the above-...

AI Technical Summary

Problems solved by technology

[0003] However, in terms of material shoveling, since the above-mentioned cantilever roadheader has been using the loading device of "loading shovel + star wheel" or "loading shovel + claw" (the star wheel refers to the The mechanical movement of the mechanism is only a kind of raking mechanical device that rotates. The raking claw refers to a raking mechanical device that has both rotary and swinging mechanical movements of the raking working mechanism during the raking process). The device has only one star wheel or claws installed on both sides of the scraper conveyor, and the material is transferred from the loading scraper to the scraper conveyor. The loading width of the chassis is fixed because of the diameter of the star wheel or the claw. The width of the construction roadway is more than 4m. During the loading process, the chassis of the roadheader needs to move horizontally and vertically in the roadway multiple times to complete the loading of all materials. This will not only waste time, reduce production efficiency, but also damage the bottom plate of the roadway.

There are two star wheels or claws in the loading device of the prior art, and the diameter of the star wheels or claws cannot be increased arbitrarily according to the span of the roadway, because if the star wheel or the claws are used to adapt to the increase in the span of the roadway The diameter of the claw increases, which not only increases the energy consumption of material loading, but also increases the longitudinal size of the loading blade, which will cause interference between the cantilever cutting part and the blade. In order to avoid the cantilever cutting part and the blade If the plate interferes, the cantilever cutting part must be lengthened accordingly, but it is not feasible to lengthen the cantilever cutting part due to various factors

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