SU968558A1 - Apparatus for excavating dense grounds - Google Patents

Description

(50 DEVICE FOR DEVELOPMENT OF STRONG SOILS

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The invention relates to devices for the development of ice, solid and frozen soils.

A device for pa3pa6ot strong and frozen soils, including self-propelled means, the attachment mechanism and the working body, made in the form of an active percussion instrument SP.

The disadvantage of such a device is the low efficiency () of the development of durable soils due to the lack of a device that creates an additional concentration of stresses in the soil. ,

The closest in technical essence and the achieved result to the invention is a device for forming cuts in ice and solid soils, containing self-propelled means for moving the working body in the form of a disk cutter and a device for forming transverse

cuts in the ice and strong soils along the movement of the working body, made in the form of multi-disk. cutters and installed in front of self-propelled and working body of f2J.

However, in the known device, the slot cutting device has a complex structure with a reciprocating 10 operating cycle, which allows to create stress concentrations in only one direction in the direction of movement of the self-propelled means, which reduces the operating efficiency of the device. By the way, the process of developing ice, strong and frozen soils will be more effective if, instead of a cutting body, apply a shock working body.

Claims (2)

The purpose of the invention is to increase the efficiency of soil excavation by creating an additional concentration of stresses in the destruction zone. The goal is achieved by the fact that in a device for the development of durable soils, including self-propelled means, a frame, a working body and a device for making transverse cuts, made in the form of cutters and mounted on the frame, the cutters of the device for making transverse cuts are made conical and their axes are parallel and on, interconnected by means of a hydraulic cylinder. Moreover, the working body is made in the form of an active percussion instrument, and the cutters are made with opposite winding of a helical spiral. Nl FIG. 1 image; Eno proposed device, general view; Fig. 2 is the same, top view; in fig. 3 a device for making transverse notches, side view; in fig. k view A in FIG. 3; in fig. 5 the shape and location of the cut transverse incisions by the cutting tool; in fig. 6 is a section BB in FIG. 3. A trailer device (device 6 1 is connected to a self-propelled means 2. To the upper part of the device 1 with the help of a pu 3 a parallelogram suspension, the frame k of the device for forming transverse notches, consisting of two conical mills 5 with interchangeable teeth, is attached 6. Drive conical mills 5 from the hydraulic motor 7 through sprockets 8 and chains 9. The milling cutters 5 are pivotally connected to the frame by levers 10 on which the axes of the milling cutters are parallel. The distance between the milling cutter 1 and 5 is controlled by the hydraulic cylinder 11. The ganna is carried out by hydraulic cylinders 12. An active percussion tool 13 is installed at the rear of the hitch device 1 and controlled by hydraulic cylinder 1. For more effective soil loosening, the milling cutter 5 is made with opposite spiral helical windings so that when cutting transverse targets on the surface of the soil being developed, symmetric fir-trees are formed the figure, made in the form The device works as follows: When lowering the frame, connected by hinges with 3 parallelogram suspensions with the hitch device 1, hydrocyline ramie 12 occurs implement of tapered cutters 5 the soil to the desired depth. The drive of the milling cutters at this time is carried out from the hydraulic motor 7 and through the sprockets 8 and the chain 9. As a result of the incision of the milling cutters 5, embedded in the ground, all the turns of the helical helix, which are in the ground, are evenly involved in increasing the radius of the helical helix Cut 5 by the same amount at each step of the helical spiral. Simultaneously with the cutting of the soil by the cutters 5, their axial movement together with the device 1 and the self-propelled means 2 takes place due to the pulling force generated by the spiral coil of the milling cutter 5 and the pulling force of the self-propelled means 2 "As the transverse notches form with the cutters 5, the active / Gift tool 13 mounted on the rear of the device 1 is symmetrical with respect to the cut transverse slots. The lifting and pressing of the active impact tool 13 is carried out by a hydraulic cylinder 14. As a result of creating a concentration of stresses by mills 5 in three directions, in a plane, perpendicular to the movement of the device, at the root of the array 1) bridges 16 formed between the holes, the soil is developed more efficiently with an active percussion tool 13. Depending on the properties of the developed soil, the distance between the mills 5 connected by hinges with the frame by the levers 10 can change with the help of hydraulic cylinders 11. The use of the invention will allow. to increase the efficiency of the development of ice frozen and solid ground. Claim 1. Device for the development of durable soils, including self-propelled means, frame, working body and device for the formation of transverse cuts, made in the form of cutters and mounted on the frame, which is so as to increase the effectiveness of the development of soils by creating additional concentration of stresses in the zone of destruction, the cuts of the device for the formation of transverse cuts are made conical and their axes are set pa5968, 5 parallel to and on the levers connected by means of m cylinders. 2. The device according to claim 1, about tl and which is the fact that the working body is made in the form of an active percussion instrument, and the cutters are made with opposite winding of a helical spiral. 10 3,, and 7 / / I / / 3 W P Sources of information taken into account during the examination 1. Author's certificate of the USSR No. 815169, cl. E 02 F 5/30, 1979. 2, USSR Copyright Certificate No. 522385, cl. F 25 C 5/16, 1975 (prototype). / // / V