RU205798U1 - SCRAPER BUCKET - Google Patents

Abstract

The utility model relates to earth-moving machines, in particular to scrapers. The technical result of the utility model is to reduce the energy intensity of the work. The technical result is achieved due to the fact that an endless chain-roller conveyor with a rear floating spring-loaded tension shaft is installed on the bucket bottom using bearing supports. , the upper branch of which has rollers adjoining each other freely rotating on the axles attached to the axles, and the rear roller axis is also attached to the retractable wall. with articulated control rods connected to the front damper, and on the bottom of the bucket with the help of bearing supports an endless chain-roller conveyor with a rear floating spring-loaded tension shaft is installed, the upper branch of which has adjoining freely rotating on attached to the chain pits in the axles of the rollers, and the axle of the rear roller is also attached to the sliding wall.

Description

The utility model relates to earth-moving vehicles, in particular to scrapers.

Known scraper bucket [Copyright certificate RU patent No. 573536, IPC class. E02F 3/64, 1977], including a bottom with a cutting knife, a retractable rear and side walls, an additional wall pivotally mounted on them with hinged control rods. In the process of digging, the additional transverse wall of the bucket is given different positions in order to reduce friction forces.

The disadvantage of this design of the bucket is the high energy consumption when collecting soil and unloading it, and the additional wall does not make it possible to significantly increase the volume of soil collected in the bucket.

The closest analogue to the claimed is the scraper bucket [Copyright certificate RU patent No. 901393, IPC class. E02F 3/64, 1982], including a bottom with a cutting knife, a front flap, a sliding wall, an additional wall hinged on the side walls with articulated control rods connected to the front flap.

The disadvantage of this design is the high energy consumption when collecting soil and unloading it, due to sliding friction forces on the bottom of the bucket.

The technical result of the utility model is to reduce the energy intensity of the work.

The technical result is achieved due to the fact that a chain-roller endless conveyor with a rear floating spring-loaded tension shaft is installed on the bucket bottom with the help of bearing supports, the upper branch of which has rollers adjacent to each other freely rotating on the axles attached to the chains, and the rear roller axis is attached also to the sliding wall.

The specified set of essential features provides the emergence of the inventive scraper bucket new properties, different from the prototype.

Thus, the declared features of a utility model meet the “novelty” criterion.

FIG. 1 shows a schematic diagram of a scraper bucket, side view.

The scraper bucket, including the bottom 11 with a cutting knife 13, a front flap 4, a sliding wall 5, hingedly mounted on the side walls 1, an additional wall 2 with articulated control rods 3 connected to the front flap 4, and on the bottom of the bucket 11 with the help of bearing supports 9 a chain-roller endless conveyor with a rear floating spring-loaded tension shaft 8 is installed, the upper branch of which has rollers 12 adjoining each other freely rotating on axles 7 attached to the chains 10, and the rear roller axis 7 is also attached to the retractable wall 5.

The scraper bucket works as follows.

At the beginning of digging, the bucket is in a forward-tilted position, the knife is buried in the ground, the front wall is hydraulically lifted (not shown) as high as possible, the retractable wall 5 by the hydraulically driven stop 6 (not shown) is moved to the extreme rear position, the rollers 12 are located on the upper branch in a chain -roller endless conveyor, the lower edge of the additional transverse wall is slightly ahead of the knife and does not interfere with the free flow of soil into the bucket. Subsequently, digging of the soil takes place in the usual way.

As soon as the bucket capacity between the additional wall and the rear wall is completely filled, the flap is lowered down and, by means of the hinged rods, turns the additional flap in the same direction.

At the same time, the lower edge of the additional wall moves circumferentially towards the rear wall, raking up the soil and moving it towards the rear wall and simultaneously lifting it up. Due to this, in the front part of the bucket, a container free of soil remains, which is filled with further movement of the scraper.

The scraper bucket is unloaded in the usual way.

At all stages of filling and unloading the bucket, the soil moves along the rollers of the chain-roller conveyor, rotating the rollers. At the same time, the forces of friction of the soil against the bottom of the bucket and the forces of adhesion are replaced by much lower forces of resistance to the rolling of the rollers on the soil, which reduces the energy intensity of the work.

Sources of information:

1 Copyright certificate RU patent No. 573536, IPC class. E02F 3/64, 1977.

2. Copyright certificate RU patent No. 901393, IPC class. E02F 3/64, 1982.

Claims (1)

Scraper bucket, including a bottom with a cutting knife, a front flap, a sliding wall, an additional wall pivotally mounted on the side walls with hinged control rods connected to the front flap, characterized in that a chain-roller endless conveyor with a rear floating spring-loaded tension shaft, the upper branch of which has rollers adjoining each other freely rotating on axles attached to the chains, and the rear roller axis is also attached to the sliding wall.

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