SU787573A1

SU787573A1 - Bulldozer working member

Info

Publication number: SU787573A1
Application number: SU792721998A
Authority: SU
Inventors: Леонид Андреевич Хмара; Владилен Иванович Баловнев; Сергей Васильевич Шатов; Виктор Кириллович Тимошенко; Василий Васильевич Мелашич
Original assignee: Днепропетровский инженерно-строительный институт; Московский Автомобильно-Дорожный Институт
Priority date: 1979-02-08
Filing date: 1979-02-08
Publication date: 1980-12-15

Description

(54) РАБОЧИЙ ОРГАН БУЛЬДОЗЕРА(54) WORKING AUTHOR OF BULLDOZER

1one

Изобретение относитс к строительно-дорожным машинам, а именно к землеройным машинам типа бульдозеров.The invention relates to road construction machines, namely, earth-moving machines such as bulldozers.

Известен бульдозер, включающий базовый трактор, отвал с ножом, толкаюшие брусь и гидроцилиндры управлени 1.A bulldozer is known, including a base tractor, blade with a knife, push bars and control cylinders 1.

Однако при его работе возникает большое сопротивление подъему срезаемой стружки грунта по лобовой поверхности отвала, которое увеличиваетс по мере возрастани призмы волочени , оказывающей притружаюш .ее действие на поднимающийс пласт грунта . В целом это отрицательно сказываетс на производительности машины.However, during its operation, there is a great resistance to the lifting of cutting soil chips along the frontal surface of the blade, which increases as the drawing prism increases, which exerts an effect on the lifting layer of soil. In general, this has a negative effect on machine performance.

Наиболее близким к изобретению по технической сущности и достигаемому результату вл етс бульдозер, включающий базовый трактор, отвал с ножом в его нижней части, боковые открылки, вынесенный вперед лополнительпый нож, св занный с боковыми открылками, и гидроцилиндры управлени . При работе бульдозера передний дополнительный нож срезает грунт, а отвал перемещает его 2.The closest to the invention in terms of technical essence and the achieved result is a bulldozer including a base tractor, blade with a knife in its lower part, side flaps, a front blade extended to the side flaps, and control hydraulic cylinders. When the bulldozer is working, the front additional knife cuts off the ground, and the blade moves it 2.

Однако срезанный передним ножом грунт сдвигаетс лобовой поверхностью отвала, а не перекатываетс по нему, как в бульдозерах обычной конструкции, что прпводит к увеличению сопротивлени , перемеп1ению грунта и, следовательно, к снижению производительности .However, the ground cut by the front knife moves the front surface of the blade, rather than rolling over it, as in conventional bulldozers, which leads to an increase in resistance, soil mixing and, consequently, to a decrease in productivity.

Цель изобретени - повышение npoii3J водительности за счет уменьшени сопротивлени подъему стружки по отвальной поверхности.The purpose of the invention is to increase the water content of npoii3J by reducing the resistance of chip lifting to the dump surface.

Указанна цель достигаетс тем, что передний нож выполнен с отвальной частью, соединен с боковыми открылками с возмож10 ностью фиксированного перемещени и расположен выще уровн ножа отвала.This goal is achieved by the fact that the front knife is made with the tail part, connected to the side flaps with the possibility of fixed movement and is located above the blade level of the blade.

На фиг. 1 схематически изображен рабочий орган, общий вид; на фиг. 2 - узел I на фиг. 1; на фиг. 3 - процесс копани грунта при незначительной толщине срезаемой 5 стружки; на фиг. 4 - то же, при максимальной толщине стружки грунта.FIG. 1 shows schematically the working body, general view; in fig. 2 — node I in FIG. one; in fig. 3 - the process of digging the soil with a small thickness of the cut 5 chips; in fig. 4 - the same, with a maximum thickness of soil chips.

Claims

The working body of the bulldozer consists of pushing bars 1, on which with the help of struts 2 the main blade 3 jg is mounted with a cutting knife 4 installed in its lower part. On the end surfaces of the main blade 3, side flaps 5 are mounted, on which an additional blade 6 with a cutting knife 7 is installed ahead of the main blade 3, and the cutting knives 4 and 7 are located at different levels. The lateral folds 5 are made with longitudinal grooves 8. The mounting holes 9 are made in brackets 10, which are attached to the lateral folds 5 on the same level with longitudinal grooves 8. To the end surfaces of the dividing blade 6, there are attached 11 longitudinal slots 8 Mounted with brackets 10 locking fingers 12. - The blade of the bulldozer works as follows. Using a hydraulic control system, the working equipment is installed so that the cutting blade 4 of the main blade is cut into the soil mass, and the blade 7 of the additional blade 6 is positioned with a slight gap above the ground surface (Fig. 3). When the base tractor moves forward, the process of excavation occurs, which, without being loaded from the prism side of the dragging line, moves along the frontal surface of the main blade 3, and then is transported in front of the separating blade 6, forming a drag prism. The side flaps 5 are designed to reduce the loss of soil in the side rollers. After the maximum prism of the soil has been set in front of the working equipment, the cutting knife 4 is excavated from the soil mass and transported to the required distance. In the case when it is necessary to cut the soil at a small distance (i.e., in this case, the maximum thickness of the cutting chips must be), the development of the soil is carried out simultaneously with two cutting blades 4 and 7, respectively, of the main 3 and additional 6 dumps (Fig. 4). Moreover, the cutting knife 7 of the additional blade 6 develops the soil in the traditional way, and the cutting knife 4 of the main blade 3 - without loading the seam stratum with a drawing prism. In addition, the proposed bulldozer blade design allows adjustment to varying ground conditions, varying between cutting blades 4 and 7. This distance can be changed by moving an additional blade 6 relative to the main blade 3. To do this, lower this type of working equipment to the surface soil, remove the locking pins 12, and then moving the base tractor forward or backward reduces or increases the distance between the cutting knives 4 and 7. After that, an additional blade 6 is fixed on the side by opening the locking pins 12 into the mounting holes 9, made with the same clamp on the brackets 10, and into the holes made on the lugs 11 fastened to the end surfaces of the dividing blade 6. The formula of the invention The bulldozer tool, which includes the pusher bar , blade with a knife, braces and side openers with an additional front knife, characterized in that, in order to increase productivity by reducing the resistance to chip lifting on the dump surface, the front knife is made mouldboard portion is connected to the lateral wings and with the possibility of moving and fixed is located above the level of the knife blade. Sources of information taken into account during the examination 1. “Construction machines. Directory. T. I. Ed. V. A. Buman and F. A. Lapira, M., “Mashchinostroenie, 1976, fig. 120 and 121.

2. US patent number 3121964, cl. 172-804, published. 1964 (prototype).

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