SU302438A1 - DEVICE FOR EDUCATION IN THE GROUND OF EXTRACT TYPE TRENCH - Google Patents

Description

The invention relates to earthmoving machinery, namely, devices for the formation of pits, trenches, gaps and other excavations.

Devices are known for forming a trench-like excavation in the ground, including a base machine, a chute frame, a splinter working unit, made with sections, and a transnorting mechanism.

However, the considerable effort transferred by the working body to the base machine leads to the loss of stability of its base rate.

In the described device, the possibility of efforts transmitted to the machine by the working body is ensured.

For this, each of the working body sections is pivotally attached to the lifting frame and mounted for movement by means of pivotally connected levers. Each of the levers, in turn, is pivotally connected to the rod of the power cylinder, mounted inside the section of the working body.

FIG. 1 shows the described device, side view; on 1fig. 2 is a view along arrow L in FIG. one; in fig. 3 - the mechanism of transverse movements; in fig. 4 is a section along BB in FIG. 3; in fig. 5 - excerpt of the excavation in two sections with broadening the notch; in fig. 6 - a fragment of a slot, a trench in one section; on

FIG. 7 - fragment of the trench in two sections without broadening the notch; in fig. 8 - excerpt pit in one section with the enhancement of the notch.

The device includes the base machine /, the working body 2, the mechanism of transverse movements 3. The working body consists of two sections, which are fastened separately by hinges 4 to the frame of the node 5 or directly to the frame of the base machine. Each section, as an autonomous chain working body of known construction, additionally has lateral knives 6. The dump of soil is made by dump devices 7.

The autonomous rotation of the section 8 for deepening and holding in the desired position is carried out by the hydraulic cylinder 9. The rotation of the section is limited by the stops 10.

The mechanism of transverse movements is installed between the frames of the sections at a distance from the hinges securing them to the lifting frame. It contains two levers 11, one or two hydraulic cylinders 12 and a seal assembly 13. One ends of the levers are hinged on the frames of the sections in their plane, and the free ends of the levers are connected together with a quick-release finger. The cylinders are mounted inside the frames of the sections of the working body, and their rods are pivotally connected with the levers. Turning the levers causes the sections to rotate in mutually opposite directions. The width of the recess is controlled by the stroke length of the cylinder rods. The sealing of the cavity in the places where the stem exits is reached by an elastic sealing unit 13. If necessary, the levers can be separated and pressed against the frames by further drawing in the rods of hydraulic cylinders.

Due to the same physicomechanical PROPERTIES of the soil within the created excavation, the working body is statically balanced. Lateral forces and reactive pieces from them from the side of the working organ on the base machine are not transmitted. The limiting angles of rotation of the section are limited by stops 10. In this case, the uniform rotation of the sections is adjusted automatically by lateral forces on the face mills.

For the development of the soil between the sections and the protection of the arms from the bottom hole, special knives are attached to the frames, which, like the lower cutters, can be removed. The drive of the working bodies of the sections can be carried out, for example, from the gearboxes 14, associated with the transmission of torque. The hydraulic cylinders of the mixing mechanism are controlled automatically.

When the hydraulic cylinders are turned on, the sections perform mutually anti-neutral nepeiMeshes. The outer ends of the levers are released when one section is buried. At the free end of any lever, a retractable ski can be installed, which is the support of the section for widening the notch.

With the aid of the described device, in 1-2 passages, excavations of considerable width are opened (up to 5 m by deepening both sections and activating the mechanism of the crossroads, they are ejected. A fragment of trenches and cracks is made by the deepening of only one section. a hydraulic cylinder with a 9 n locking device for section 15. Lower cutters and special presses of the working section are removed. Narrow trenches (up to 2 m wide can be torn off by recessing sections without turning on The mechanism of the transverse displacement, which serves as the connecting element of the sections. The pits are digging the depth of one section and turning on the hydraulic cylinder of the section rotation.

The ski is retracted to the free of this lever. By repulsing the wall of the wall, its broadening occurs. The working section returns to its initial position under the action of the difference in lateral forces of the turned working body.

Prevention Invention

A device for forming in the ground a dredging of a trench, including a base machine, a lifting frame, a chain working body, made with sections, and a transporting mechanism, characterized in that, in order to reduce the working weight transmitted to the base machine by the working body, each of the working sections The body is pivotally attached to the frame of the lift. I and set the wall with the ability to move the tool m.

interconnected levers, each of which, in turn, is hingedly connected to the rod of the power cylinder, mounted inside the section of the working body.