SU1390311A2 - Scraper bucket - Google Patents

Description

| (6) 1222768

(21) 3925928 / 29-03

(22) 07/10/85

(46) 04.23.88. Bul J5

(7J) Mogilev Machine Building

institute

(72) A.M. Shchemelev and A.A. Shchemelev

(53) 621.878.6 (088.8)

(56) USSR Copyright Certificate M. 12 22768, cl. E 02 F 3/64, J984.

(54) BUCKET SCRAPER

(57) The invention relates to building and road machines. The purpose of the invention is to increase the productivity of the scraper. On the front flap of the bucket 2 bucket (k) 1 in the guides 3 are installed hinges 4, which are connected to the shoulders 5 of the two shoulders bracket. on. The shoulders 5 are connected to the hydraulic cylinders 12 for raising and lowering the loading device. Rotational drives 8 are installed on the beam connecting the shoulders 5.

a working body JO, made from coaxial onBON and additional cylindrical arcuate springs (P) of the same diameter and with the same pitch of turns. Each of the additional P with its ends is connected with the opposite shoulders 5. The adjacent coils of the main and additional P are offset relative to each other, in the gaps between the coils with a step equal to the step P, ribbon helixs of elastic material are installed. Adjacent turns P and spirals are fastened by means of clamps. The activated drives 8 rotate the working bodies 10, which move the soil going into the prism of the dragging to the zone of the flap 2. When lifting to the hydraulic cylinders 12, the working members 10 are withdrawn from K J and are raised up. Moving in the direction of the food 3, they move into K 1 from the prism of a drawing the soil formed by cleaving. 4 il.

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FIG.

The invention relates to construction and road machines and can be used on scrapers, bulldozers and other machines, and is an improvement to the well-known scraper bucket according to auth. No. 1222768,

The purpose of the invention is to increase the performance of the scraper.

FIG. The scraper bucket is depicted. with an assembly for removing the prism of the drag on the front flap in a transport position; Fig. 2 shows a unit for removing a drawing prism in a working position; in FIG. 3, view A in FIG. Fig. 4 shows a fragment of the working body of the assembly for removing the drawing prism. The bucket 1 consists of a body with a front flap 2, on the front sheet of which are mounted in vertical guides 3 hinges 4. The latter are connected to the arms 5 of the two shoulders, which are connected to each other in the upper and lower parts by means of transverse beams 6 and 7 On the upper beam 7 there are installed rotational drives 8, which, through the bearing units 9, ensure the rotation of the working element 10 installed by the lower part through the bearing supports 11 on the lower beam 6. The shoulders 5 are connected to hydraulic cylinders 12 designed for lifting lowering the boot device. The working body 10 is made up of coaxial main and additional arcuate springs of the same diameter and with the same pitch of turns, adjacent turns of the main and additional springs are offset relative to each other. In the gap between the adjacent coils of the springs, a tape helix J3 is made of elastic material, for example, of sheet reinforced rubber. Adjacent coils of springs and spirals are fastened with clips 14. As a result, the elastic elements play the role of auger blades and effectively work as a working member, which is also an adaptive working member.

The scraper bucket works in the following 1M way.

In the transport position, the loading device is raised and is in the position shown in FIG.

At the beginning of the digging process, the flap 2 is raised, the bucket is buried and the bucket is filled with soil.

Tom. The assembly for removing the prism of the drag by means of the hydraulic cylinders 12 is rotated relative to the hinges 4. At the same time, the hinges 4 perform translational motion under the action of their own gravity and due to the force of the hydraulic cylinders 12 along the guides 3, which can be made in the form of a pipe or a dovetail. The formation of a drawing prism begins from the moment the soil emerges from the bucket when the filling ratio reaches 0.5-0.6. Engaged motors 8 rotate the working bodies JO, which move the soil going into the prism of the dragging to the flap 2 zone. Rotation of the working bodies -10 occurs before the end of the digging process. When the bucket 1 is lifted by the hydraulic cylinders 1 2, the working bodies 10 are removed from the bucket 1 and then rise up, moving in the direction of the transport position, the working bodies are moved to the bucket from the drawing prism of the ground, which fell there or due to cleaving, or due to the accumulation of loose soil that is on the surface of the bottom.

The installation of such a unit on the flap allows the bucket to be moved into a primer which, when chipped, goes into a prism. dragging, and in terms of productivity, such a device, by installing a ribbon helix, corresponds to the screw performance, being at the same time a flexible adapting tool that can adapt when it encounters a stone, and then return to its original position, as well as move the material along the desired path. . The transport device sufficiently effectively fills the front part of the bucket, moving the soil up in the cleavage zone, thereby reducing the load in the cleaved area, and provides an increase in the cleavage angle, which leads to a decrease in the dynamics of the working process.

Claims (1)

Formula of gain The scraper bucket according to aut. No. J222768, which is different from the fact that, in order to increase productivity, the assembly for removing the drawing prism is equipped with sizes equal to those of the main springs, additional cylindrical arcuate springs, each of which is connected by its ends with opposite arms of the bracket and are installed coaxially with the main spring and with the displacement of its turns relative to the adjacent turns of the latter, and filled with elastic material at P between the turns equal to the step of the springs,. tape spirals, each of which is installed in the gap formed by the displacement of adjacent turns, corresponding to the primary and secondary springs, while the adjacent turns of the spring and the helix are fastened together by means of clamps. / rh .12 / iO FIG. Fi.CH