SU1232752A1 - Working member of bulldozer - Google Patents

Description

The invention relates to road construction machines, namely, earth-moving machines such as bulldozers.

The aim of the invention is to increase productivity.

Fig. 1 shows the working body of the bulldozer, general view (Front; Fig. 2 - the same, rear view; Fig. 3 is a diagram of the work of the working body.

The working body of the bulldozer includes a blade 1 with a cutting knife, on which a rectangular side cut 2 is made. On the blade there is an overlapped cutting plate 3 that can move along blade 1 in the slots 4 under the influence of 5 hydraulic cylinder fixed on the blade

The hydraulic cylinder 5 moves the plate 3 in order to expose it in order to provide a certain width P of the uncovered part of the notch 2, depending on the length L of the working stroke of the bulldozer. The values of L and P are related

V

L h-kp

where B is the length of the blade; h is the height of the notch; V is the volume of soil in front of the dump

V 2-5-5S-, (2)

m where H is the height of the blade;

w is a coefficient depending on the H / B ratio,

The working body works as follows.

The tool is hung on. bulldozer that has a cross

I 0,5 (B -), (1)

the bias of the blade. Before starting work, taking into account the known length of the working code L of the bulldozer, set the length of the notch 2 equal to size I

according to the formula (I). Soil is developed with a cut of chips with a thickness h equal to the height of the notch and width. Each follower; 5 1osh, the working stroke of the bulldozer is made at a transverse

its lateral displacement along arrow A (FIG. 1). During the working stroke, the chips accumulate in front of the blade. The entire volume of cut soil for the entire working stroke accumulates in front of the blade only at the end of it, i.e. at the place of unloading. At the same time, there should be practically no loss of soil in the side rollers, since the cutting will be done with a narrow knife of width

f,, After each lateral displacement of the bulldozer, its tracks go along the ground at different heights, therefore the tool (dump) must be installed with a cross-section bias to obtain

horizontal position of the cutting edge.

Fig, 3 shows a diagram of the work of the working body.

Example ,, Requires removal of layer

soil in the area of length L, width B, thickness h. The working device seizes the width of the chip, and begins to cut it, at 1, and prevent soil from entering. Drag prism formed

gradually, first in the middle part (position D), then expands to the edges of the blade (position D) and at the end of the turn is completely formed (position E).

/ /// /

Editor P. Cossey

Compiled by A. Tolmachyov

Tehred I. Veres Correction. Syrohman

Order 2744/31, Draw 641 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Fig.Z

Claims (1)

WORKING BODY OF THE BULLDOZER, containing a blade with a cutting knife, characterized in that, in order to increase the productivity of the bulldozer, the blade is made with a side cut located in the lower part, the length of which is less than half the length of the blade, and is equipped with a waybill installed with the possibility of overlapping the side cut along the blade cutting plate with drive control. and boo boo boo Figure 1 J 232752