SU1477838A1 - Apparatus for percussive working of soil - Google Patents

Abstract

The invention relates to the construction, in particular to machines for the dynamic compaction of soils, and the compaction of foundation pits. The purpose of the invention is to increase the efficiency of work. The device consists of a base machine with an arrow, on the head of which there is a block, which is surrounded by the guide cable 8. The hitch device has a longitudinal channel through which the guide rope 8 is passed, and a cable block drive. The guide rope 8 interacts with the working body. The tensioning mechanism of the guide rope 8 is made in the form of a power cylinder 12, which is mounted in the upper part of the boom. A stop 14 is fixed on the rod 13 of the power cylinder 12. The stop 14 has a channel 15 for the passage of the guide cable 8. A spring-loaded clamps 16 are mounted in the channel 15, cooperating with the stop 17 fixed on the power cylinder 12. A limiter is mounted on the free end of the guide cable 8 11, the mass of which exceeds the mass of the guide rope at least 1.1 times. By turning on the power cylinder 12, the rod 13 with the stop 14 moves downward, the spring-loaded grippers 16 move away from the stop 17, seize the free branch of the rope 8 and tension it. 4 il.

Description

The invention relates to the construction, in particular, to machines for dynamic soil compaction, loosening frozen and durable soils, crushing oversize, tamping down foundation pits, as well as in all cases when it is necessary to freely drop the working bodies when using crane mechanisms without special guide masts. .

The purpose of the invention is to increase the efficiency of work.

Figure 1 shows the proposed device, a General view; figure 2 - vi And figure 1; fig.Z - node I in figure 1; figure 4 - scheme of the device.

The device consists of a base machine 1 with an arrow 2 on a cable-block drive 3, on which the coupling device 4 is mounted, on castor-brackets

5 last by means of a hinged mushroom grip

6, the working member 7 is suspended. A guide cable 8 is fixed to the upper part of the mushroom grip 6, passing through the central opening 9 of the coupling device 4, thrown over the blocks 10 and ending at the free end by a limiter 11, the weight of which is at least

1.1 times the mass of the rope. A device for tensioning a free rope 8, made in the form of a power cylinder 12, is fixed to the upper part of the boom 2, to the rod 13 of which a stop 14 is fixed, in its channel 15 spring-loaded clamps 16 are mounted, which interact with the stop 17 fixed on the body of the power cylinder 12 . On the upper part of the boom 2 fixed stops 18.

The device works as follows.

With the help of the base machine 1, the axis of the working body 7 is combined with the place of excavation. The cable block drive 3 lifts the working body 7, while under the action of the mass of the limiter 11, which is not less than 1.1 times the weight of the entire rope., The free branch of the rope 8, the passage through the channel 15 of the stop 14, is lowered. The mass of the limiter 11 is selected 1.1 times the mass of the rope 8 because of the reliable overcoming of the friction force frp 0.04 to the top

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one (or two) side outlets 10 of the boom 2 to prevent rope sagging on the side of the implement 7.

When the coupling between the shanks of the castors 5 of the coupling device and the stops 18, the castors open and the working body 7 fall freely, while the rope 8 attached to the mushroom-shaped grip 6 follows the working body with the restrictor 11 lifting upwards.

5 14 are moved downward, the spring-loaded grippers 16 are retracted from the stop 17, capture the free branch of the rope 8 and tension it. With small movements in the ground of the body, smaller in magnitude of the maximum stroke of the rod 13 of the power cylinder 12, it is possible to tension the cable without spring-loaded grippers by directly acting on the stop 14 on the stop 11, whose transverse size exceeds the diameter of the channel 15 of the stop 14. In addition, in this case, it is possible to use a power cylinder 12 with a double-sided hollow rod, in the cavity of which the cable 8 passes. Switching the cable-block drive 3 lowers the drawbar stroystva 4 which moves in a highly tensioned rope 8-mentioned (completely eliminates its sagging). Since the rope 8 is fixed to the upper part of the mushroom-shaped gripper 6 pivotally mounted on the working member 7, the gripper 6 is oriented in exact accordance with the direction of the rope 8, due to which the coupling device 4 is securely docked with the working member 7. Then the rod moves into the cavity the cylinder 12, the spring-loaded grippers 16, reach to the stop 17, releasing the rope 8. With the cable-assembly drive 3, the coupling device 4, together with the working body 7, rises up and the working cycle repeats.

The proposed device allows, without using guide masts, to freely drop the working body both on the horizontal and on the inclined surface of the ground (tamping down slopes) with reliable coupling of the working body to the coupling device regardless of

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places of its fall, as well as deviations from the horizontal of its working surface, which significantly increases the efficiency in the production of works.

Claims (1)

Invention Formula A device for percussive excavation, containing a base machine with a boom, at the end of which a block is placed, bending around a guide cable, passed through a longitudinal channel of a hitch with a cable-block drive, interacting 7838ch with a working body having a gripping device, a tensioning mechanism of the guide rope, characterized in that, in order to increase the efficiency of operations, the tensioning mechanism of the guide rope is made in the form of an JQ power cylinder mounted on the upper part of the power cylinder with a stop fixed on its rod, having a channel for the passage of the guide rope and a restrictor mounted on the free end of the rope, the weight of the restrictor exceeding 5 times the weight of the guide rope at least 1.1 times. 12 Type A FIG. 2 Editor N.Rogulich Compiled by A.Shishova Tehred L. Bliynyk Proofreader L. Patay Order 2324/30 Circulation 590 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and publishing complex Patent. Uzhgorod, st. Gagarin, 101 Fig.b Subscription