SU899754A1 - Apparatus for forming trenches - Google Patents

Description

(54) DEVICE FOR TRANSCHEENING

one

The invention relates to building machines, and more particularly to machines for forming trenches in the ground in order to create an impervious curtain or wall in the ground.

A device for penetrating w, spruce trees with vertical walls is known, in which a base machine is used with a mounted tool, made in the form of a screw elevator, and two cutting elements in the form of endless chains 1.

The disadvantages of this machine are the shallow depth of the trench being created, the unconsolidated trench walls, the complexity of the design of the working body and, consequently, the low degree of reliability of this body.

The closest to the proposed technical essence and the achieved result is a device for forming trenches mainly under an impervious curtain, including an impact mechanism, tubular guides, a wedge-shaped knife part and a frame

In this device, the wedge-shaped knives are equipped with rollers at the ends, which facilitate the movement of the knives along the grooves.

pre-installed in the wells of pipe-guides, connected by a transverse frame with block 2.

The disadvantages of this device is the complexity of the design of the working body and low productivity, due to the necessity of drilling wells for each subsequent segment of the trench and installing pipe-guides with grooves into these wells.

The purpose of the invention is to increase productivity.

Claims (2)

This goal is achieved by the fact that, in the device for forming trenches, mainly under an impervious curtain, including a percussion mechanism, tubular guides, a wedge j visible knife part and a frame, the frame is provided with vertical bushings in which tubular guides rigidly connected to the wedge are placed the knife part at the same time in each guide is placed the mechanism of percussive action, and the wedge-shaped knife part has a cantilevered segment and an additional tubular guide at the end, lennoy on the end of the console segment. FIG. the device is shown in the initial position, before the start of the working cycle; in fig. 2 - the same, during the penetration of the trench. The device for forming trenches consists of a wedge knife part 1, at the ends of which there are mechanisms of percussion action 2 placed in tubular guides 3 rigidly connected with the ends of the wedge working part of the knife. These elements constitute the main working body, beyond which a cantilever section 4 juts out on one side and is provided with a tubular section 5 at the end. The tubular wedge guides are placed into the other 6 guides located on the space frame 7, which is installed on the trolley 8. The trolley is placed along the longitudinal axis of the trench along the track 9. The trolley is placed on a winch 10 with two ropes 11, which are thrown over the blocks and fixed to the main oh knife part. The device operates as follows, along the longitudinal axis of the constructed trench, a rail track is laid on which a rail carriage with a frame is installed, in the vertical bushings of which the tubular guides of the wedge knife part are placed. When starting the percussion mechanisms (for example, pneumatically, by supplying compressed air through the hoses), the working body begins to sink into the ground, with the tubular guide section located at the end of the cantilever section protruding beyond the wedge-blade part moving along the leading well previously drilled to depth of the project mark of the bottom of the created trench. As a result of immersing the working tool in the ground, a section of the trench with compacted smooth walls is formed. The vertical direction of movement of the working body is carried out using the above-mentioned tubular guides of the main working body, whose position in the initial period of the working cycle is fixed by vertical sleeves located on the frame, and then, with full immersion of the working body in the ground, the walls of the holes formed percussion action. When the working body reaches the design level, the percussion mechanisms are remotely switched to reverse and the working body is retrieved to the surface with a winch. The following trench section is laid after the device is moved along the rails along the axis of the trench, with the section of tubular guide at the end of the cantilever section moving along the wellhead of the previous section of trench. The technical and economic advantages of the proposed invention are to increase the productivity of work to create deep trenches, simplify the production technology and increase the reliability of the device. Claim device Forming trenches, including a percussion mechanism, tubular guides, a wedge-shaped knife part and a frame, characterized in that, in order to increase productivity, the frame is provided with vertical sleeves in which tubular guides rigidly connected to a wedge-shaped knife are placed part, with a percussion mechanism in each guide, the wedge-shaped knife part has a cantilever at the end and an additional tubular guide mounted on end of the cantilever cut. Sources of information taken into account in the examination 1. USSR author's certificate number 581207, cl. E 02 F 5/20, 1976. 2. USSR author's certificate number 514062, cl. E 02 D 17/00, 1973 (prototype). . LJ . / Ha