SU891854A1 - Bulldozer equipment - Google Patents

Description

(54) BULBDOZERNO EQUIPMENT

one

The invention relates to road construction machines, namely, earth-moving machines such as bulldozers.

Known dozer equipment includes a blade with a rezhushim knife, push bars and control cylinders 1.

The lack of equipment is the low versatility in the production of preparatory work associated with the lack of the ability to capture and move goods.

The closest to the invention in terms of technical efficiency and the achieved result is bulldozer equipment, including pushing bars, a blade with the main knife and a front jaw with a knife and side walls, connected to the blade brackets, and the control cylinders 2.

A disadvantage of the equipment is the limitation of its technological capabilities, due to the fact that when lowering the front jaw in the process of seizing the cargo, the knife of the jaw prevents the introduction of its side walls into a stack of material.

The aim of the invention is the expansion of technological capabilities.

This goal is achieved by the fact that the additional knife is rigidly connected to the side walls of the front jaw by means of rigidly connected levers, which have fangs fixed on their lower parts, while the additional knife levers are equipped with side cutting blades that are interoperable with the face sides of the side walls of the jaw.

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FIG. 1 is an axonometric view of the bulldozer equipment, general view; in fig. 2 - dozer equipment when operating with a middle protruding knife; in fig. 3 - the same, in the process of seizure of cargo; in fig. 4 - the same, with the middle knife brought in from the front; in fig. 5 - the same, when working with a blade with a raised, protruding knife.

Bulldozer equipment (Fig. 1) includes pushing bars 1, blade 2 with a knife 3 and an occasional jaw with lateral

20 walls 4, equipped in the lower part with Tusks 5, a knife 6, which with the help of levers 7 and hinges 8 is attached to the side walls of the jaw 4. On the levers 7 are installed side trimming knives 9.

The jaw is controlled by hydraulic cylinders 10.

Bulldozer equipment operates as follows.

When developing durable soils with the help of hydraulic cylinders 10, the front jaw rotates counterclockwise and is set to the extreme position (Fig. 2). In this case, the knife of the jaw is located below the knife 3 of the blade 2, forming a protruding middle knife, thus increasing the specific pressure on the cutting edge and it is possible to develop stronger soils.

The design of the dozer equipment provides the ability to capture various kinds of cargo, both single and stored in piles (Fig. 3). To do this, the jaw is retracted to the extreme upper position by means of the hydraulic cylinders 10, the blade of the bulldozer 2 is brought to the cargo to be transported, and then the jaw is lowered. At the same time, the side walls of the jaw 4 are inserted with 5 tusks into the staple with materials and pressed against the blade of the bulldozer 2. The knife of the jaw 6 on the levers 7 rotates relative to the joints 8, without having to resist the introduction of the tusks 5.

To reduce the energy intensity of the digging process in the final stage, both knives 3 and 6 are set at the same level by turning the jaw clockwise using the hydraulic cylinders 10 (Fig. 4). In this case, the cutting of the soil cutting process from the prism-forming process at the jaw section occurs, which results in a reduction in the energy intensity of the soil development process. In the process of digging, the knife of the jaw 6 occupies a fixed position due to the fact that the undercutting side knives 9 with their back ends abut against the ends of the side walls 4 of the jaw.

When performing planning work, the jaw rises to the extreme upper position (Fig. 5) and the digging process in this case is carried out by a dozer blade.

The proposed equipment possesses advanced technological capabilities associated with the capture of stuffed and stacked loads.

Claims (2)

1. Bulldozer equipment, including pushing bars, a blade with a main knife and a front jaw hinged to the blade brackets with an additional knife and side walls, control hydraulic cylinders, characterized in that, in order to expand operational capabilities, an additional knife through rigidly connected with it The arms are pivotally connected to the side walls of the middle jaw, which have canines attached to their lower parts. 2. Equipment according to claim 1, characterized in that the levers of the additional knife are provided with side trimming knives, which are installed with the possibility of interaction with the face sides of the side walls of the jaw. Sources of information taken into account in the examination 1. Pleschkov DI and others. Bulldozers, scrapers, graders. M., “Higher School, 1972, p. . 2. USSR author's certificate for application number 2731146 / 29-03, cl. E 02 F 3/76, 1979 (prototype). eight y / FIG. 2  TO U