SU941485A1

SU941485A1 - Scraper bucket

Info

Publication number: SU941485A1
Application number: SU803009638A
Authority: SU
Inventors: Владимир Александрович Нилов; Виктор Александрович Борисенков; Илирик Арсеньевич Коцанди
Original assignee: Воронежский инженерно-строительный институт
Priority date: 1980-11-28
Filing date: 1980-11-28
Publication date: 1982-07-07

Description

(54) КОВШ СКРЕПЕРА(54) BUCKET SCRAPER

1one

Изобретение относитс к землеройнотранспортным машинам и может быть использовано в механизмах разгрузки скрепера .The invention relates to earth-moving machines and can be used in the unloading mechanisms of the scraper.

Известен ковш скрепера с механизмом принудительной разгрузки, включаюший гидроцилиндры, св занные с кареткой .A scraper bucket with a forced unloading mechanism is known, including hydraulic cylinders associated with the carriage.

Недостатком данной конструкции вл етс сложность конструкции каретки и направл ющих .The disadvantage of this design is the complexity of the design of the carriage and guides.

Наиболее близким техническим решением к изобретению вл етс ковш скрепера , включаюший днише с режуш.им ножом, боковые стенки, выдвижную заднюю стенку , каретку с катками, направл ющие каретки и крайн.ие и средние гидроцилиндры, закрепленные на каретке корпусами посредством цилиндрических шарниров и соединенные штоками соответственно с буфером и задней стенкой 2.The closest technical solution to the invention is a scraper bucket, including the bottom with a cutting knife, side walls, retractable rear wall, a carriage with rollers, guide carriages and extreme and average hydraulic cylinders mounted on the carriage by means of cylindrical hinges and connected stocks, respectively, with the buffer and the back wall 2.

Недостатком конструкции вл етс закрепление всех гидроцилиндров к подвижной каретке с помошью проушин и пальцев, оси которых разнесены вдоль каретки, вследствие чего последн выполнена с четырьм -опорными роликами, а весь механизм имеет значительную «мертвую длину. Кроме того , в указанной конструкции поджатие задней стенки к днищу при выгрузке осуществл етс только за счет ее веса, что не обеспечивает надежного поджати .A disadvantage of the design is the fixing of all hydraulic cylinders to the movable carriage with the help of eyelets and fingers, the axes of which are spaced along the carriage, as a result of which the latter is made with four support rollers, and the whole mechanism has a significant dead length. In addition, in this design, the preload of the rear wall to the bottom during unloading is carried out only due to its weight, which does not ensure reliable preload.

5Целью изобретени вл етс повышение надежности работы механизма.5 The purpose of the invention is to increase the reliability of the mechanism.

Указанна цель достигаетс тем, что цилиндрические шарниры и катки расположены на одной геометрической оси, а ось соединени штока среднего гидроцилиндра с задней стенкой размещена ниже расположени цилиндрических шарниров.This goal is achieved in that the cylindrical hinges and rollers are located on the same geometric axis, and the axis of connection of the rod of the middle hydraulic cylinder with the rear wall is located below the location of the cylindrical hinges.

На фиг. 1 изображен ковш скрепера с механизмом разгрузки; на фиг. 2 - то же, вид сверху; на фнг. 3 - сечение А-А на 15 фиг. 1; на фиг. 4 - ковш скрепера с механизмом в положении разгрузки; на фиг. 5 - вариант креплени гидроцилиндров механизма разгрузки.FIG. 1 shows a scraper bucket with an unloading mechanism; in fig. 2 - the same, top view; on fng. 3 - section A-A on 15 of FIG. one; in fig. 4 - scraper bucket with a mechanism in the unloading position; in fig. 5 is a variant of mounting the hydraulic cylinders of the unloading mechanism

Ковш 1 включает механизм разгрузки, состо щий из центрального гидроцилиндра The bucket 1 includes a discharge mechanism consisting of a central hydraulic cylinder

Claims

20 2, pivotally connected to the rear sliding wall 3 and to the carriage 4 by means of pins 5 and separable bearings 6 (FIG. 2). Side hydraulic cylinders 7 are connected pivotally with buffer 8 by means of lugs 9, and with carriage 4 by means of axles 10 and detachable bearings 6. Carriage 4 is equipped with support rollers 11 connected by spacers 12 that are coaxially with detachable bearings 6. Fastening central hydraulic cylinder 2 to the rear sliding wall 3 is below the axis of the split bearings 6. The carriage support rollers .4 are installed in guides 13 rigidly connected to the buffer 8. A design variant is also possible (Fig. 3), in which the side hydraulic cylinders 7 are connected to the carriage 4 along redstvom lugs 14 coaxial with the bearings 6 detachable central hydraulic cylinder 2 and the road wheels 11. The bucket works as follows. In the initial position, the rear extension on the wall 3 is in the extreme right position. The cylinders 2 and 7 are selected so that the area of the rodless cavity of the central cylinder 2 is slightly less than the total area of the rodless cavities of the side cylinders 7. When the bucket is unloaded, fluid is simultaneously supplied to the brushless cavities of the cylinders 2 and 7 and begins to move in the guides 13 of the carriage 4, and along with it, the rear wall 3. The central hydraulic cylinder 2 operates as a rigid connection. Due to the fastening of the central hydraulic cylinder 2 to the rear sliding wall 3 below the axis of the support rollers And carriage 4, the central hydraulic cylinder 2 is inclined at an acute angle to the plane-side hydraulic cylinders 7. This ensures a constant preload of the rear sliding wall 3 to the bottom of the bucket and eliminates its lifting up from the bucket during operation unloading mechanism. When fully using the stroke of the lateral hydraulic cylinders 7, the rear sliding wall 3 continues to move due to the extension of the central hydraulic cylinder 2. The unloading mechanism returns to its original position in reverse order when reversing the flow of working fluid in the hydraulic cylinders 2 and 7. Using the proposed unloading mechanism, the scraper bucket simplifies the connection hydraulic cylinders between themselves and their associated carriage, increase the reliability of the mechanism and reduce the simple scraper due to malfunction m unloading mechanism Claims of the scraper bucket, comprising a bottom with a cutting knife, side walls, a retractable rear wall, a carriage with rollers, guide carriages, extreme and middle hydraulic cylinders attached to the carriage by means of cylindrical hinges and connected by means of cylinders with buffer and rear wall, respectively, that, in order to increase its reliability, cylindrical hinges and rollers are located on the same geometric axis, and the axis of connection of the rod of the middle hydraulic cylinder with the rear wall is located below cylindrical scharnirov. Sources of information taken into account during the examination 1. USSR author's certificate No. 641041, cl. E 02 F 3/64, 1977.

2. US patent number 3952432, cl. 37-126, published. 1976 (prototype). // f2 ff -Tff 7 2 Fg / g. J s

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