SU1294987A1 - Working member of mine cutter-loader - Google Patents

Abstract

The invention relates to mining engineering and is intended for combines operating on hard rocks. The goal is to expand the technological capabilities of the executive body. The Executive body includes a hub 1 with a linear disc cones 3, loading blades 7, a cutting disc and a notch part. The latter is equipped with notch radial 4 and tangential 5 disk cutters installed in the same cutting line. The axes of the cones 4 are located at an angle about the axis of rotation of the actuator. Sharoshes 3-5 have the same geometric S (L 7 K

Description

cue parameters. Rolling A, rolling around the face, destroys it. As a result, the development of cracks occurs, which is an additional outcrop plane for the sha. The invention relates to mining machinery and is intended for combine harvesters producing strong rocks.

The aim of the invention is to expand the technological capabilities of the executive body.

Figure 1 shows the executive body of a mining combine, side view; figure 2 - view A on fig.i fig.Z - scan of the executive body; figure 4 and 5 - the installation node of the tangential disk cone; figure 6 - the destruction of the Kutkov part of the slab.

The executive body of a mining combine includes a hub 1, double support brackets 2 with linear disc cones 3 fixed in them, radial 4 and tangential 5 cross disc cones connected to increase the rigidity of the flange 6 of the cutting disc, and loading blades 7. Radial notches - disk cutters 4 are installed at an angle about the axis of rotation of the actuator, and tangential notch disk cutters at the same angle to the plane normal to the axis of rotation of the actuator, and the projects and the axis of rotation of the tangential disk cutter on this plane is rotated relative to the radius of the actuator at the same angle about and does not pass through the axis of rotation of the actuator (Figures 4 and 5), which ensures their good fit into the cutting path. The minimum value of the angle about is limited by the condition of guaranteed rotation of the disk cone on the axis. The magnitude of the angle is determined by the formula

The chips 5. In turn, the cutters 5 cut the chips, forming a flattened surface for the cutters 4, which facilitates their introduction into the destroyed array. 1 hp f-ly, 6 ill.

e, 3rctgf- b, InuDu.o J

where V „- feed rate, m / s;

n is the number of disk cones; O) - rotational speed of the actuator, s; D d - diameter, executive

body, m

The notch disk cutters 4 and 5 are mounted on the actuator so that they do not overlap or reduce the cross sections of the loading window formed by the loading blades 7. In the layout example of the actuator, two radial and two tangential disk cutters are installed in the notch cutting line. In order to unify the working tool on the executive body, the geometrical parameters of the notched disk cones are assumed to be equal to the corresponding parameters of the linear disk cones.

The executive body of the mining combine works as follows.

Linear disk cutters, rolling around the face, each in its line of cut, due to the screw position on the actuator, destroy the array in sequence from the exposed surface to the bottom hole. In a kutka, the destruction of an array is carried out by radial and tangential disk cones installed in the notch part of the executive body. With a screw arrangement of linear and notching (radial and tangential) disk

cones for each tool in their cutting line creates an additional surface that favorably affects the process of mechanical destruction. The destruction of the Kutka part of the array is different from the destruction in the linear part. The radial notch disc sharps 4, rolling over the rock massif, produce its destruction in the mode of frontal cutting. Wherein. In addition to separating the elementary pieces C (Fig. 6), cracks develop under the blade of the disk roller cutter D directed deep into the array. These cracks are an additional outcrop plane for tangential notched disc cones 5 operating in undercut mode. In turn, the tangential notch disc cone 5 cuts off chips, forming a flattened surface for the radial notch disc cone 4, which facilitates its introduction into the destroyed array. Such an arrangement of the notch part of the executive body allows the design of the bottom plane and the self-cutting of the combine by an oblique approach.

Claims (2)

1. The executive body of a mining combine that contains a notch, an AO cutting disc, a hub with a screw loading blade and linear disc cones mounted on axles housed in brackets, bid l characterized in that, in order to expand technological capabilities, its notch part is equipped with notched radial and tangential disk cutters installed in the same cutting line, and the notch radial and tangential disk cutters have the same geometrical parameters with linear disk cutters. 2. The executive body of the mining harvester POP.1, characterized in that the axes of the radial notch disk cones located under about arctg . noDu.o J where UE - feed rate, m / s; number of disk cones п п.со rotational speed of the actuator, s, D ts.o diameter of the executive body, m, to the axis of rotation of the actuator, and the axis of the tangential notch disc cones are inclined to the plane normal to the axis of the actuator rotated at the same angle, and their projections onto this plane are rotated relative to the radius of the actuator by the same angle and offset from the axis of rotation executive body. te. F. five Fa2b Editor G. Volkova Compiled by E.Trushin Tehred L.Serdyukova Order 579/35 Circulation 455 Subscription VNINPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Proofreader L. Pilipenko