SU1537771A1 - Equipment for breaking frozen soil - Google Patents

Abstract

The invention relates to the cutting of equipment with bar tools. The goal is to expand the technological capabilities of the device. The equipment includes the feed (SCP) 2 located in the guides of frame 1 with hydraulic cylinder, symmetrically driven bars. Each bar contains an arrow 9, asterisks 7 and 8 and the cutting chain 6 surrounding them, the bars are located radially relative to a common center of symmetry. Each boom 9 has a brake and is connected by means of pivot points 12 and pads 13, which are displaceable relative to frame 1, are connected to the HCP 2. When the bars are located in the upper position above the ground surface, their sprockets 8 are close to each other. When extending the GCP 2 rod, frame 1 is lowered down and the bars are buried in the ground to a predetermined depth. Upon further lowering of the frame 1 and turning off the brakes 11 of the arrows 9, the bars make an angular movement, while the asterisks of the 8 bars diverge. Then the arrows 9 are braked and the bars are raised up with the help of the PEG 2. As a result of lowering and raising the bars with their expansion, wider slits are formed. 2 Il.

Description

(21) 4400556 / 29-03

(22) 03/30/88

(46) 01/23/90. Bul K 3 (72) A.S. Shavolov

(53) 621.879.44. (088.8)

(56) USSR inventor's certificate No. 1221286, cl. E 02 F 5/00, 1984.

USSR Author's Certificate No. 1146376, cl. E 02 F 5/06, 1984.

(54) EQUIPMENT FOR DESTRUCTION OF FROZEN GROUNDS

(.57) The invention relates to the cutting of crevices by equipment with bar tools. The goal is to expand the technological capabilities of the device. The equipment includes the feed (SCP) 2 located in the guides of frame 1 with hydraulic cylinder, symmetrically driven bars. Each bar contains an arrow 9, asterisks 7 and 8 and the regime chain covering them 6,

bars are located radially relative to the common center of symmetry. Each boom 9 has a brake and is connected by means of articulated t 12 and pads 13. located with the possibility of movement relative to frame 1, with the PEG 2. When the bars are located in the upper position above the ground surface, their sprockets 8 are close to each other. When extending the GCP 2 rod, frame 1 is lowered down and the bars are buried in the ground to a predetermined depth. Upon further lowering of the frame 1 and switching on the brakes of the arrows 9, the bars make an angular movement, while the asterisks of the 8 bars diverge. Then the arrows U are braked and the bars are raised up with the help of the PEG 2. As a result of lowering and lifting the bars with their expansion, wider slits are formed. 2 Il.

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(L

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with N

one

The invention relates to earthmoving machinery, and more specifically to equipment with bar tools for cutting gaps in high strength soils.

The purpose of the invention is to expand the technological capabilities of the equipment.

FIG. 1 shows a diagram of the equipment, front view; in fig. 2 - the same plan view.

Equipment for the destruction of frozen soils includes a frame 1, suspended by means of a hydraulic cylinder 2 to the metalwork 3 of the base machine. The frame 1, provided with rollers 4, which are in contact with the guides 5 of the base machine, has radially mounted sections on which bars are mounted. Each bar includes a cutting chain 6, covering the leading 7 and the driven 8 sprockets and in contact with the boom (its frame) 9, freely mounted on the drive shaft 10 of the driving sprocket 7 and equipped with a controllable brake 11. In addition, the booms 9 of all bars are hinged by 12 g with a platform 13, which is connected with the racks of the frame 1 by means of sliders 14. In turn, the platform 13 connects the frame 1 with the hydraulic cylinder 2. The drive shafts 10 are connected to the motors 15 of the bar rotation via mechanical (bevel gears sixteen.

The equipment is used as follows.

With the disinhibited (11) arrows 9, by retracting the rod of the hydraulic cylinder 2, the frame 1 is lifted (with all the elements mounted on it; first, the platform 13 with its sliders 14 moves along the legs of the frame 1 to its final position, after which the whole frame 1, accompanied by rolling the rollers 4 relative to the fixed guides 5 of the base machine. Fixing the final upper position (as well as the final lower position) of the platform 13 relative to the vertical uprights of the frame 1 is reached Settings abutment elements 9-11 in rotation relative to the frame system 1. Upon reaching platform 13, the upper end position (which corresponds to

five

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five

0

five

0

five

0

five

mutual convergence of the driven sprockets 8 of all bars, as shown in FIG. 1) the brakes 11 are activated and the device becomes prepared for the bars to be buried in the ground, which is ensured by the reverse extension of the hydraulic cylinder rod 2 and the lowering of the frame 1 down the guides 5. At the same time, the platform 13 together with the rods 12 remain stationary the sprockets 8 to the ground turn on the motors 15 and, through bevel gears 16, transmit the rotation to the drive shafts 10 and leading sprockets 7 bar chains 6, after which axial introduction of the working bars into the ground to a predetermined depth takes place. Then, the soil treatment zone is expanded due to the angular rotation relative to the center of symmetry of the bars buried in the ground, which is achieved by further extending the rod of the hydraulic cylinder 2 when the arrows 9 are braked. At the same time, platform 13 begins to move down the vertical legs of the frame 1, and bars and as the stars 7 and 8 rotate, they will make angular movements, moving their driven stars 8 away from each other. Such movements of the bars occur to the final lower position of the platform 13 (in Fig. 1 this position is shown by dotted lines; then the arrows of the 9 bars are again braked and the rod of the hydraulic cylinder 2 is advanced. At the same time, the system of elements 13-12 moves up to its final position, after which it moves up and the frame 1 itself with all the elements installed on it. As soon as platform 13 takes up its upper end position, the booms 9 are braked and the device again becomes prepared for its next axial insertion EIW soil (after rearranging the new location of guide 5).

In the development of high-strength soils, initial axial -deepening of the bars is performed to a limited (rather than to the full specified) depth, after which the bars are diluted (by the above-mentioned technique), then they are partially raised, not removed from the soil, but only the arch bars then re-axial

51

implanting bars into the ground, then divorcing them again, then reducing them, etc. until a gap is formed to a predetermined depth

Both methods of breaking frozen ground by cutting slits into it require the subsequent excavation of the soil by other means.

Claims (1)

Invention Formula Equipment for the destruction of frozen soils, including a frame in the guides of the base machine with a feed hydraulic cylinder, located on the frame symmetrically related, 15 16 7 B1 H 6 Fi.d 377716 The drive bars, each of which contains an arrow, sprockets and a cutting chain surrounding them, are characterized by the fact that, in order to expand the technological capabilities of the device, the bars are located radially relative to the longitudinal plane of symmetry of the frame, and their arrows have angular movement brakes and connected to the supply hydraulic cylinder by means of articulated joints and platforms located with 15 can be moved relative to the frame. 16 / Yu, 11 .1, 12 / /