SU1454919A1 - Excavator bucket tooth for working frozen soil - Google Patents

Abstract

The invention relates to the mining industry and m. used for excavation of frozen soils. The goal is to reduce the energy intensity of the process of deepening the teeth in the soil. The device includes a shank and a working part. The section of the working part in the plane perpendicular to the longitudinal axis of symmetry of the tooth is an isosceles triangle. The front face of the tooth is made in the form of a rectangle. The angle between the side edges is variable and varies from 180 at the cutting edge to 27 at the shank. When a tooth moves, the proppant penetrates the ground, splits the plastic deformation in the vertical direction and gradually develops these deformations as the tooth deepens. 5 il. "O (l

Description

one

The invention relates to the excavation and movement of soils, namely to the teeth of excavator buckets for the development of frozen soils.

The purpose of the invention is to reduce the energy intensity of the process of embedding teeth in the ground.

FIG. 1 shows a tooth excavator, side view; in fig. 2 - the same, top view; in fig. .3 - section A-A in FIG. one; in fig. 4 is a section BB in FIG. one; in fig. 5 is a sectional view BB in FIG. one.

The excavator bucket tooth includes a working part 1 with a front face 2, a cutting edge 3, two side faces 4, a wedging edge

to

15

5 formed by jiepece4eHHeM side faces, with the wedging angle c decreasing with distance from cutting edge 3.

In order to increase wear resistance, the cutting edge 3 and the wedging edge 5 are fused with an alloy, which is well suited for impact abrasive wear.

When a tooth moves, the wedging part, penetrating into the ground, contributes to the development of plastic, soil deformations in the vertical direction, since the wedging angle if decreases as it moves away from the cutting edge, the work of the wedging part will be reduced to a gradual development insignificant4; JV CO

with

plastic deformations of the soil as the tooth deepens.

Claims (1)

Image formula Excavator bucket tooth for the development of frozen soils, including the shank and the working part, section 1454919 is an isosceles triangle, the front and side faces of the working part, forming a cutting edge, differing in that, in order to reduce the energy intensity of the teeth digging process in the runes, the front face is made in the form of a rectangle, and the angle between the side edges , ..-, ,,,, „iiwjri ilopila, and the angle between the juice which in a plane perpendicular to 10 faces varies from 180 ° at the cutting edge to the longitudinal axis of symmetry of the tooth, leading to the edge and 27 ° at the shank is an isosceles triangle, the front and side faces of the working part, forming a cutting edge, characterized in that, in order to reduce the energy intensity of the teeth digging process in i run, the front face is formed as a rectangle, and the angle between the side faces iiwjri spit, and the angle between the juice faces vary from 180 ° at the cutting edge to 27 ° at the shank Ch Fie.2 / t- / t