SU1219737A1 - Bucket-chain working member of trencher - Google Patents

Description

2. Working body according to claim 1, characterized in that, in order to distribute the loads on the chain elements more evenly, between each rock-breaking and transporting elements on the chain is mounted an additional 1

The invention relates to earthmoving machinery, namely, working lOp- gangs of trench excavators.

The purpose of the invention is to reduce energy consumption, cutting process, alignment and compaction of the walls of the trench, as well as more even distribution of loads on the target elements.

Figure 1 shows a chain working body in the working position, side view of figure 2 - rock cutting element with mounted disk undercutting knives on it, top view.

The chain working body of a trench excavator contains a supporting frame 1, an endless chain 2 placed on it, connected with a drive (not shown), rock breaking 3 and transporting 4 elements mounted on chain links.

On the outer surfaces of the side faces of the elements 3 with the possibility of free rotation in planes parallel to the longitudinal vertical plane of symmetry of the working body, the disk undercutting knives 6 are mounted by means of the axles 5, while the cutting edges of each pair of knives are placed in front of the cutting edge of the corresponding rock-cutting element 3, and the outer surfaces of these knives are made convex.

a soft cutter, with the lower part of the cutting edge of the rock-breaking element located above, and the lower part of the cutting edge of the additional cutter - at the level of the lower part of the cutting edges of the disk undercutting knives.

In addition, an additional cutter 7, is mounted between each rock-destroying 3 and transporting 4 elements on a chain.

part of the cutting edge of the element 3 is located, and the lower part of the cutting edge of the cutter 7 - at the level of the lower part of the cutting edges of the disk undercutting knives 6.

To remove the developed soil away from the trench, a driving screw 8 was used.

The device works as follows.

When the included working body is fed to the face, disc knives b are cut along its entire length of the slit, and the rock-breaking elements 3 and additional cutting tools 7 following each pair of these knives provide layer-by-layer cutting of the soil already separated from the trench walls at different levels. Designed soil transporting elements 4

taken out of the trench and with the help of the screw 8 is taken aside. Making the outer surfaces of the disc undercutting knives 6 convex allows to obtain vertical walls of the trench

more equal and compacted, which increases their stability and prevents crumbling of the soil.

Editor N. Dankulich

Compiled by B. Kuzmenkov

Tehred I. Veres Corrector A. Zimokos

1301/41 Circulation 641 Subscription

VNIIPI USSR State Committee

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

Branch PPP Patent, Uzhgorod, st. Project, 4

FIG. I

Claims (2)

1. CHAIN WORKING BODY OF THE TRANCH EXCAVATOR, containing a supporting frame and an endless chain placed on it, connected to the drive and equipped with rock-cutting and transporting elements mounted alternately on its links, about the heat? ; it is important that, in order to reduce the energy intensity of the cutting process, as well as to level and seal the walls of the trench, on the outer surfaces of the side faces of the rock-breaking elements with the possibility of free rotation in planes parallel to the longitudinal vertical plane of symmetry of the working body, they are mounted circular cutting knives, while the cutting edges of each pair of knives are placed in front of the cutting κρο ·: of the corresponding rock crusher on the element, and the outer surfaces of these knives are made convex. (= <s Fig / And »And with © 00 m 2. The working body according to claim 1, wherein in order to more evenly distribute the loads on the chain elements, an additional cutter is mounted on the chain between each rock cutting and transporting elements, the lower part of the cutting edge of the rock cutting element being located higher and the lower part of the cutting edge of the additional cutter is at the level of the lower part of the cutting edges of the disk cutting knives.