SU1518458A1 - Bulldozer blade - Google Patents

Abstract

The invention relates to road construction machines. The goal is to reduce the energy intensity of the process of cutting the soil. The blade 1 of the bulldozer includes a cutting edge 3, which is made of alternating offset teeth 4 in the direction of the working movement and unbiased teeth 5 interconnected by side walls / BS / 6 with cutting edges 7. The cutting edges of teeth 4 and 5 and BS 6 form a common cutting edge 3 of the blade 1 in the form of a broken line of isosceles trapezoids. The trapezium bases are the cutting edges 8 and 9, respectively, of the teeth 4 and 5, and the lateral sides are the cutting edges 7 of the BS 6. The teeth 4 and 5 are made in the form of isosceles trapezoids with smaller bases on the cutting edges 8 and 9. As the machine moves and The depth of the blade, teeth 4 and 5 are in contact with the ground. By creating a total critical state of the soil between the areas of mutually displaced cutting edges of the teeth 4 and 5, the cutting energy intensity is reduced. In addition, the energy consumption is reduced due to the application of loads on the soil from the side of the BS 6 cutting edges. 4 Il.

Description

Vida

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SP

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FIG. 2

The invention relates to road construction machines, in particular to earth-moving machines such as bulldozers

The aim of the invention is to reduce the energy intensity of the cutting process.

FIG. Shows a bulldozer blade mounted on a base machine; FIG. 2 is a view A of FIG. L; on fig.Z - section bb in fig a 2; figure 4 is a view In fig.Z,

The blade 1 of the bulldozer, suspended on the base machine 2, includes a cutting edge 3, which is made of alternating displacement 4 in the direction of the working movement of the teeth and unbiased 5 teeth interconnected by side walls 6 with cutting lower edges 7, cutting edges the teeth 5 and 4 and the side walls 6 form a common cutting edge 3 of the blade 1 in the form of a broken line consisting of isosceles trapezoids; the bases of which are cutting edges 8 and 9, respectively, teeth 4 and 5, and the lateral sides are 7 edges of the side walls 6 "Tine 4 and 5 are made in the form of isosceles trapezium with smaller bases on the cutting edges 8 and 9. Tooth 4 and 5 are limited by the length of the general size G (figure 3).

The blade of the bulldozer works as follows.

At. The movement of the Mapin and the penetration of the blade installed in the direct dozer position, the tooth comes into contact with the ground. Continuous cutting is carried out in layers, since

the cutting edges of the displaced and unbiased teeth are divorced in height relative to each other, and the cutting edges of the teeth are interconnected by the cutting edges of the side walls, i.e., there are no gaps between the layers. Wherein . . there is a decrease in the energy intensity of the cutting process by creating

total critical state

soil between the areas of application of loads by mutually offset cutting edges of the teeth and additionally due to the application of loads on the soil with

the sides of the cutting edges of the side walls, the presence of teeth 4 and 5 of the Trapezoidal shape (pointed) also reduces energy consumption, and the side walls 6 exclude the possibility of foreign objects falling and being caught between the teeth,

The invention of a bulldozer blade, including

a cutting edge made of alternating teeth that are displaced and unbiased in the direction of the working movement, differing in that, in order to reduce the intensity of the cutting process, the teeth are interconnected by means of lateral walls with cutting edges, which together with the cutting edges of the teeth form a common cutting edge of the blade in the form of a broken line consisting of isosceles trapezoids, the bases of which are the cutting edges of the teeth, and the lateral sides - the cutting edges of the side walls, while the tooth in Are shaped in the form of an isosceles trapezium with smaller bases on the cutting edges.

FIG. 3 View B

Claims (1)

Formula of the invention Blade of a bulldozer, including a cutting edge made of alternating shifted and unshifted teeth in the direction of the working movement, characterized in that, in order to reduce the energy intensity of the soil cutting process, the teeth are interconnected by side walls with cutting lower edges, ] which together with the cutting edges of the teeth form a common cutting edge of the blade in the form of a broken line consisting of isosceles trapezoid, the bases of which are the cutting edges of the teeth, and the sides - cutting edges of the side walls, while the teeth are made in the form of isosceles trapezoid with smaller bases on the cutting edges. FIG. 3 View B