SU1004597A1 - Apparatus for making holes in earth - Google Patents

Description

(54) DEVICE FOR FORMATION OF WELLS IN GROUND

one

The invention relates to the construction of foundations and foundations and relates to equipment for the formation of wells in the ground.

A device for loosening durable soils is known, comprising a base machine with an arrow, with which a guide rod is pivotally connected, interacting through a fixing-pressing head with a ripper wedge and a free-falling striker 1.

The disadvantage of this device is that the described device is intended only for loosening durable soils and it is impossible to use it for punching deep wells in soft and medium soil hardness, since when the submersible submersion is full height, the latter will jam and cannot be removed by lifting base machine arrows. Moreover, the articulation of the guide rod with the boom of the base machine does not allow vertical wells to be produced, since the movement of the guide rod downward occurs due to a change in the boom reach, and this leads to inclination of the guide rod.

The closest to the proposed solution to the technical essence and the achieved result is a device for the formation of wells in the ground, including a rope drive associated with a drummer mounted for movement along a guide having an emphasis in the upper part and interacting with the tip, and rubber washer 2.

The disadvantages of this device are 10 with low efficiency of its penetration into the ground, due to the fact that the weight of the impactor is limited, since the latter is placed inside the hollow body, and a significant part of the impact energy of the impactor against the tip is spent on stretching the elastic tg and compressing the shock absorber ( rubber), placed between the cover and the case. Also, the outer guide tube has a large mass, which leads to the absorption of part of the impact energy to overcome the inertia force of the outer guide. At the same time, when being submerged, the external guide perceives the total resistance of the soil and, accordingly, all the impact energy of the striker, which leads to its rapid destruction.

The mass of the drummer placed in the hollow body cannot be increased due to the limited length of the hull dimensions.

The external guide, being immersed in the ground, requires great efforts and a special device for its removal due to the great friction on the lateral surface and the vacuum effect (suction effect) arising during the removal of the device.

The purpose of the invention is to increase the efficiency and reliability of the device and increase the depth of penetration.

This goal is achieved by the fact that in the well punching device, which includes a cable drive connected to a drummer mounted for movement along a guide having a stop in the upper part and interacting with the tip, and a rubber nub, the guide is rigidly connected to the tip and placed concentrically inside the drummer, while the lower part of the drummer is made in the form of a cone, the smaller base of which is directed to the tip.

In addition, the drummer is made of rings, while between the lower cone ring and the previous one there is a rubber pad.

The drawing shows the described device.

The device for the formation of wells in the ground consists of a base machine 1 with an arrow 2, a drummer 3 with a cable drive 4 in the form of a cable-block system with a drum and a drive motor from the base machine, a tip 5 which is rigidly fixed with a guide 6 It has a removable stop 7. The drummer 3 freely covers the guide 6. The drummer 3 is connected to the rope drive 4 through the cable lock 8, and is made up of a lower cone-shaped ring 9 fixed on the pipe 10 and the rings 11 dressed on the pipe 10. CA and are pressed against the nut 12, and between the lower ring 9 and the rings 11 placed calibrating rubber schayba 13.

The device works as follows.

To install the tip 5 in the design position along the axis of the well, the tip 5 and the hammer 3 (in the lower position) are fixed with a detachable pin 14. After installing the tip in the center of the future well, install and fix the support post 15 so that the boom rests on it and remove the finger 14. Next, the impactor 3 is lifted and released, which slides along the guide 6. When the impactor 3 falls, the impact energy is transferred to the tip 5, which, together with the impactor 3, sink into the ground, breaking a hole. When the hammer 3 is immersed in the ground, the rubber plate 13, squeezing vertically, increases horizontally in diameter, as a result of which the diameter of the well is larger than the diameter of the hammer 3, thereby reducing the friction force of the hammer against the walls of the well. gin when it is extracted. By achievement

the design depth of the well extracts the tip 5 by lifting the hammer 3, which, leaning against the stop 7, extracts the tip 5.

The use of the invention allows

improve the efficiency of the device for the formation of wells in the soil by increasing the depth of the wells and the accuracy of their penetration.

Claims (2)

1. An apparatus for forming wells in a ground comprising a cable drive coupled to a drummer mounted for movement along a rail. having a stop in the upper part, and interacting with the tip, and a rubber washer, characterized in that, in order to increase the penetration depth and reliability of the device, the guide is rigidly connected 5 with a tip and placed concentrically inside the drummer, while the lower part of the drummer is made in the form of a cone, the smaller base of which is directed to the tip. 2. The device according to claim 1, characterized by   the fact that the drummer is made of rings, while between the lower ring and the previous one there is a rubber washer. Sources of information taken into account in the examination 1- USSR Author's Certificate No. 589343, cl. E 02 F 5/30, 1978. 2. USSR author's certificate number 694600, cl. E 02 F 5/20, 1977 (prototype).