SU401601A1 - LOADING LEMEX SCRAPER CONVEYOR - Google Patents

Description

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BACKGROUND OF THE INVENTION The invention relates to stripping loading plots of scraper mobile conveyors.

Known loading plowshares of scraper conveyors, including shelves with a spout, mounted on the base in the form of horizontal and vertical shelves, mounted on a conveyor belt.

A disadvantage of the known loading plowshares is quick wear.

The purpose of the invention is self-sharpening plowshares.

For this, the rear edge of the spout of the plowshare with respect to the horizontal shelf of the base is located below its working edge.

FIG. 1 shows the pan with a loading ploughshare, general view; in fig. 2 - view along arrow A; in fig. 3 - plowshare nose in a larger view.

The loading plow has shelves 1 fixed on base 2, consisting of horizontal and vertical shelves. The ploughshare is fastened to the scraper conveyor level 3. When the scraper is moved to the bottom of the loading and stripping spout, shelf 1 cleans the soil and directs it to the conveyor. On the shelf there are holes 4 through which in a known manner, for example, using bolted

connections, plowshare is attached to the side of the staple 3.

The height of the spout is set depending on its service life, and the front edge of the shelf is set at an angle of 35-40 ° and has a straight length of at least three spout lengths, and then gradually goes into an arc of a circle, the radius of which depends on the size of the plowshare .

Operating experience and experimental work show that when the material is loaded and the soil is stripped, there is an intense wear of the working edge a and the bottom surface b of the nose. So that there is no zauovavi and blunting of the working edge and uniform wear of the lower and upper surfaces of the shelf, ensuring self-sharpening of the working edge a, in the lower part of the shelf

formed in relation to the base of the spout. Geometry and spout dimensions ensure its self-sharpening throughout the entire service life of the coulter. Rear edge in the plowshares with respect to the horizontal bottom shelf

2 is located below its working edge a, so that an angle of about 4 ° forms between the soil surface and the bottom surface of the shelf.

When operating conveyors in the mining industry, bottom hole sizes

spaces are usually limited and not always

you can withstand an angle of 35-40 ° throughout the inclined part of the loading shelf, so the shelves just bend at a large angle. As a result, the loading conditions deteriorate significantly, and the conveyor motions on the face increase. To eliminate these drawbacks while maintaining the dimensions, the geometry of the loading shelf is performed with a smooth transition from a straight line segment r located at an angle of 35-40 ° to the arc of a circle. Moreover, the radius of the arc of a circle depends on the size of the plowshare, provided that the straight section of the loading shelf is maintained for at least three lengths of the bottom surface of the spout.

The bottom surface of the spout should be lower than the lower shelves of the pan tread by an amount equal to the wear throughout the whole service life of the plowshare.

Subject invention

Loading ploughshare scraper conveyor. including shelves with a spout fixed on the base in the form of horizontal and vertical shelves mounted on a conveyor, characterized in that, in order to ensure self-sharpening of the plowshare, the rear edge of its spout relative to the horizontal shelf of the base is located below its working edge.

FIG. one

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