SU702165A1 - Working member for an extraction unit - Google Patents

Description

(54) THE EXECUTIVE BODY OF THE EXTRACTIVE UNIT

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The invention relates to the mining industry and can be used for mechanized excavation of minerals, in particular coal.

Known screw executive bodies of coal combines, including the hub, the blades and the tool holders 1.

The closest technical solution is the executive body of the mining combine, which includes two rotary handles, hinged on the body and equipped with crowns, screws, crowns, augers, hydraulic cylinders and contouring device consisting of two shoulders with cutters and copiers 2.

The disadvantages of this executive body include significant overgrinding of coal during excavation.

The aim of the invention is to provide an increase in the grade of coal and its efficient loading.

This goal is achieved by the fact that the screw crowns are made hollow, while the inside is turned) (the crowns of the screw crowns are provided with a rigidly fixed screw spiral with teeth. The contouring device is made in the form of a cutter installed in the lower part of the body.

FIG. 1 depicts the proposed executive body; in fig. 2 - koronkashnek.

The executive body includes a housing 1 on which there are tides 2. At high tides, handles 3 are rigidly fixed, made in the form of hollow cylinders. Hollow crowns-screws 4, fitted with screw spirals 5 and 6 with teeth on the outer and inner surfaces, are mounted on the arms x for rotation. Crowns-screws have individual drives from the engines 7 through a gear transmission (gears 8, 9).

An contouring device, made in the form of a milling cutter 10, which is rotated from the drive motor of the corresponding crown-pzhek, is mounted through gears 11 and 12 on the lower part of the housing. On the housing 1, there are sliding flaps 13.

Claims (2)

The coal extraction by the executive body is carried out in the front of the scarp. The rotating crowns of the nzheki 4 in the end direction destroy the bottoming of the end surface by cutting, cutting out coal in the form of two WpFiOBs, which pass through the cavities of the Chinek crowns and are loaded onto the conveyor through pOCTBOSr of the pnnecky coils 6. The rest of the load is loaded with external wrench blades. The broken coal guides the conveyor to the conveyor with the help of guide plates 13. For shaping the face into a rectangular shape, after the passage of the crowns of the screws, there is a contoured milling cutter 10, which is installed in the lower part of the c. but. The invention will find wide application in the development of coal seams where it is necessary to increase the yield of large classes of coal (for example, anthracite seams). Claim 1. The executive body of the excavation unit, including handles with crown-screws, has screw spirals and contouring device on the outer surface of the topbix, characterized in that, in order to increase the grade of the coal to its efficient loading, the crown-screw and are hollow In this case, the morning surface of the screw crowns is equipped with a rigidly mounted auger spiral with teeth. 2. The executive body of the excavation unit according to claim 1, characterized in that the contouring device is designed as a milling cutter installed in the lower part of the body. Sources of information taken into account in the examination of 1 USSR Author's Certificate No. 254433, cl. E 21 C 25/04, 1968, 2. USSR author's certificate No. 402650, cl. E 21 C 27/02, 1972 (prototype).