SU603731A1

SU603731A1 - Scraper

Info

Publication number: SU603731A1
Application number: SU752147932A
Authority: SU
Inventors: Владилен Иванович Баловнев; Леонид Андреевич Хмара; Александр Борисович Ермилов; Александр Васильевич Рубайлов; Виталий Яковлевич Дворковой; Юрий Павлович Бакатин; Андрей Андреевич Яркин; Сергей Иванович Павлов; Фоат Измайлович Зайнетдинов; Владимир Сергеевич Танин-Шахов
Original assignee: Московский Автомобильно-Дорожный Институт; Всесоюзный научно-исследовательский институт строительного и дорожного машиностроения; Челябинский Завод Дорожных Машин Им. Колющенко
Priority date: 1975-06-23
Filing date: 1975-06-23
Publication date: 1978-04-25

Description

/5V СКРЕПЕР/ 5V SCRAPER

Изобретение относитс к области землеройно-транспортных машин, в частности к скреперам.This invention relates to the field of earthmoving machinery, in particular scrapers.

Известны ковшовые рабочие, органы землеройных машин с режущимиступеньчатыми ножами, обеспечивающими одновременное резание грунта HlJНаиболее близким техническим решением к предлагаемому вл етс скрепер, включающий т говую раму, ходовую часть двухщелевой ковш с заслонкой, жестким передним и шарнирно закрепленным задним режущими ножами и гидроцилиндры управлени T/JJ.Known bucket workers, earthmoving machinery with cutting blade knives, providing simultaneous cutting of soil. Jj

Основным недостатком указанной конструкции вл етс относительно высокое усилие копани грунта при одновременном взаимодействии с грунтом переднего и заднего режущих ножей, что ограничивает глубину и скорость копани грунта отрицательно вли ющих на производительность .The main disadvantage of this design is the relatively high force of digging the soil while interacting with the soil of the front and rear cutting blades, which limits the depth and speed of digging the soil adversely affecting productivity.

Целью данного изобретени вл етс увеличение производительности скрепера и снижение усили копани грунта. The purpose of this invention is to increase the productivity of the scraper and reduce the digging force.

j Указанна цель достигаетс тем, что передний режущий нож скрепера выполнен ; с выступом в вертикальной плоскости, I при этом длина выступа переднего ножа ; равна 0,25-0,35 ширины ковша. j This goal is achieved by the fact that the front scraper blade is complete; with a protrusion in a vertical plane, I with the length of the protrusion of the front knife; equal to 0.25-0.35 bucket width.

Одновременно копание грунта передним и задним ножами сопровождаетс процессом полублокированного разрушени грунта задним ножом, что обеспечивает существенное уменьшение общего усили копани .At the same time, digging the soil with the front and rear blades is accompanied by a semi-blocked soil destruction process with the rear knife, which provides a significant reduction in the total digging force.

На фиг. 1 показан общий вид скрепера в разрезе; на фиг. 2-вид скрепера сверху; на фиг. 3---разрез А-А на фиг. 2; на фиг. А на фиг. 3; на фиг. 5 - форма стружки грунта, вырезаема передним ножом скрепера; на фиг. 6 форма стружки, вырезаема задним ножом.FIG. 1 shows a general view of the scraper in section; in fig. 2 is a top view of the scraper; in fig. 3 --- section A-A in FIG. 2; in fig. And in FIG. 3; in fig. 5 - the form of soil chips, cut out with a front scraper knife; in fig. 6 form of shavings, cut out the rear knife.

Claims

The scraper includes a traction frame 1, a flap 2 with a control hydraulic cylinder 3, side walls 4 and a bucket rear wall 5, a chassis 6, a pusher support 7, a rear control hydraulic cylinder 8, a rear bottom 9 of a bucket with hydraulic cylinders 10 and a cutting knife 11 and the front bottom 12 of the bucket with a cutting knife 13, made with a protrusion in the vertical plane. The hydraulic cylinders 10 hinge but are fixed on the back bottom 9 by means of eyelets 14 and fingers 15- On the back of the rear knife 11 brackets 17 are rigidly fixed, pivotally connected by means of fingers 16 with pro 18, mounted on the back bottom 9- Through npoyjiiMH 19 and 20, the brackets 16 are hingedly connected to the rods of the hydraulic cylinders 10. On the rear bottom 9, stops 21 are rigidly fixed for unloading the hydraulic cylinders 10 when the knife 11 is placed in the operating position. The length of the front knife 13 is 0.25-0.35 times the length of the rear knife 11. The operation of the scraper is carried out as follows. When digging soil by hydraulic cylinders 10, the rear knife 11 is moved to install it on the stops 21. The front knife 13, as it moves to the stitch, cuts the chips of the soil 35 inches wide in the bucket, which fills the front part of the scraper bucket. At the same time, the rear knife 11 produces cutting of the remaining lateral portions of the soil over the entire width of the bucket, while filling the rear part of the bucket. At the end of the set of soil, the bucket raises the rear knife 11, turns the hydraulic cylinders 1 into a horizontal position, closing the window between the front bottom 12 and the rear of the PMC .I. 9, valve 2 is closed by a hydraulic cylinder 3 and then the soil is transported to the place of unloading. Due to the fact that the front knife of the scraper is made with a protrusion in a vertical plane, the length of which is 0.25-0.35 of the bucket width, the digging force decreases on average by 20 with a significant increase in the bucket filling ratio. At the same time, the expected annual economic effect from the use of this design is within 2000JtQ. Per machine. Claim 1. Scraper comprising a chassis, chassis, double-slotted bucket with a flap, rigid front and hinged rear cutting blades and control hydraulic cylinders, characterized in that, in order to increase productivity and reduce ground digging force, the front blade is made with a ledge in a vertical plane.

2. The scraper according to claim 1, about tl and h ay i and with the fact that the length of the protrusion is 0.25-0.35 the width of the bucket. Sources of information taken into account in the examination 1. Copyright certificate HVM4i 859. cl. Е 02 f 3/6, 197. f- US patent ff 31003.555 cl. 37-126 publ. 19b2 / prototype /.

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