RU2235876C1 - Assembly for fixing disc rolling cutters of plough - Google Patents

Abstract

FIELD: mining equipment engineering.

SUBSTANCE: device has rolling cutters supports, rocking arm, middle portion of which is jointly fixed on executing member of plough, and its shoulders are placed at angle to each other with possible interaction with supports placed on executing member of plough. Rolling cutters supports are mounted on end portions of rocking arm. Rocking arm shoulders are placed at angle to each other equal or greater than 90°.

EFFECT: device allows increased reliability of operation and increased destruction effectiveness due to adaptation to surface being destroyed.

2 cl, 2 dwg

Description

The invention relates to a mining tool and may find application in plow installations used in the coal industry.

Known fasteners of disk cones in the form of a support shaft on which the cone / 1 / is mounted and rotates.

The main disadvantage of cones with rigid support is their failure when they meet with strong inclusions of rock mass.

Also known cones fixed in spring-loaded bearings / 2 /.

The disadvantage of such cones is the relative complexity of the mount, its lack of reliability and the relatively low efficiency of the destruction of coal with inclusions.

The aim of the invention is to simplify the mount of disk cones and increase the efficiency of destruction.

This goal is achieved in that the attachment site of the disk plow cones containing the cone bearings has a rocker arm, the middle part of which is pivotally mounted on the plow executive body, and its shoulders are angled to each other with the possibility of interaction with the stops placed on the plow executive body, while the supports of the cones are mounted on the end sections of the rocker arm.

The arms of the rocker arm are located at an angle to each other equal to or greater than 90 °.

This embodiment of the support of the disk cone allows for a relatively simple design of elastic fastening of the cones, with a minimum number of fasteners, to ensure high reliability and durability of the mount due to the exclusion of special springs and devices necessary for their fastening. The coal destruction efficiency of the declared cutter is improved due to the self-redistribution of the feed force between two cutters located in parallel, nearest cutting lines. It is the fastening of two cones in one rocker, and the fact that its middle part is pivotally mounted on the executive organ, provides the same (or close to it) load on each cone.

The invention is illustrated by drawings, where figure 1 schematically depicts a mounting unit of disk cones; figure 2 is a view of it along arrow A.

The mount includes a disk cone 1 mounted on a support shaft 2 and a disk cone 3 mounted on a support shaft 4.

The shafts 2 and 4 are mounted on the end sections of the arms of the rocker arm 5 and 6, fastened together by an axis 7, pivotally mounted on the executive body 8 of the plow. The arms of the rocker arms 5 and 6 are deployed at an angle to each other. This angle must be equal to or greater than 90 °. The arms abut in their extreme positions on the stops 9 and 10, placed on the executive body 8, and form a rocker arm common to both cones, the middle part of which is pivotally fixed via axis 7 to the plow's executive body. Roller cutters can be located in parallel or in the same cutting line.

The pressure force on the face G (in the direction of arrow B) during the operation of the plow's executive body presses the cones 1 and 3 to the rock mass and simultaneously moves them along the arrow along the face. In this case, the redistribution of the depth of cut on the cones will be determined by the efforts on each cone. With equal effort on cones, the latter remove the same shavings. When one of the cones of solid inclusions meets in the corner, it unfolds from the bottom towards the corresponding stop for each cone: cone 1 - towards the stop 9, and cone 3 - towards the stop 10. At the same time, the cone that is turned from the bottom is deepened into the bottom . In figure 2, the rotation corresponds to the position of the cones shown by the dotted line. This protects the roller cone from damage, increasing its reliability.

The knot of fastening disk cones will provide the greatest economic effect on the plow executive body during the destruction of coal with a large number of solid inclusions.

Sources of information

1. MGKrapivin "Mountain tools". M., 1979, p. 53.

2. German patent No. 1953550, M.cl. E 21 C 9/08.

Claims (2)

1. The site of attachment of disk plow cones, containing support cone, characterized in that it carries a beam, the middle part of which is pivotally mounted on the plow executive body, and its shoulders are located at an angle to each other with the possibility of interaction with the stops placed on the plow executive body while supporting the cones mounted on the end sections of the rocker arm. 2. The attachment site of the plow cones according to claim 1, characterized in that the rocker arms are at an angle to each other equal to or greater than 90 °.

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