SU1541366A1 - Apparatus for making holes in soil - Google Patents

Abstract

The invention relates to construction equipment, namely, devices for the formation of wells in the soil under the piles. The goal is to simplify the design of the device. It includes a base machine with a mast, along the guides of which the percussion mechanism (UM) and the hammering gear move, and the mechanism of its extraction. The hammer head in the upper part has a head and protrusions on the side surface. On the lower part of the mast, by means of the cheeks, the supporting platform of the mechanism for the extraction of the projectile is installed. Vertical guides are mounted on the support platform, along which the crosshead with the extraction hydraulic cylinders (HZ) moves. HZ rods secured to the support site. On the traverse there are grips rotating around horizontal axes fixed in the eyes of the traverse and stops. The grippers are mounted with the ability to interact with the projections of the hammer. The bearing surfaces of the grippers and stops are cylindrical and have the same curvature. The hammer is inserted into the ground, then HZ extraction is included in the work. The traverse begins to rise, while the pushers, remaining in place, release the grippers. The latter rotate around an axis until they, with their upper part, are bumped into the body of the hammer. Subsequently, when lifting the crosshead

Description

The invention relates to construction equipment, namely, devices for the formation of wells in the ground for ramming, driving and lowering piles.

The purpose of the invention is to simplify the design of the device.

FIG. 1 shows a device for the formation of wells in the ground, a general view; in fig. 2 — front removal mechanism; in fig. 3 extraction mechanism, top view; in fig. 4 is a section A-A in FIG. 3; figure 5 - the same, at the time of lifting the traverse.

The device includes a base machine 1 with a mast 2, along the guides of which the impact mechanism 3 and the driving head 4 move, having a head 5 and side projections 6 in the upper suit. On the lower part of the mast

3 15

(Figures 2 and 3) movably, by means of the cheeks 7, a supporting platform 8 of a mechanism for extracting a drilling projectile with vertical guides 9 rigidly attached thereto is mounted on which the yoke 10 moves with the extraction hydraulic cylinders 11, the rods 12 of which are fixed on the supporting platform 8 .

On the traverse 10, grippers 13 are mounted, rotating around horizontal axes I, fixed in lugs 15 of traverse 10, and stops 16. Moreover, the diameters of the horizontal axes 1 are smaller than the diameters of the holes 17 in the grips 13, which excludes the effect of loads on the axle when the projectile is removed.

The lower part of the grippers 13 is made in the form of a cylindrical surface with stops 18 and 19 on two sides, one of which 18 serves to interact with the stops 16, and the other 19 with pushers 20, which are rigidly fixed on the support platform 8.

The surfaces of the stops 16, which interact with the cylindrical surfaces of the grippers 13, are cylindrical and have the same curvature for the length of the load of the entire supporting surface.

A device for the formation of wells in the grooves works as follows.

By maneuvering the base machine, the device is installed above the place where the well should be pierced under the pile. The mast is set vertically, and the support platform 8 with the traverse 10 rests on the ground.

Traverse 10 is set in the lower rest position. The grippers 13 are supported on one side by the stops 16, and on the other side by the push rods 20, ensuring free passage of the driving projectile into the openings of the cross member 10 and the supporting platform 8 (Fig.).

The hammering mechanism A is driven into the ground by the percussion mechanism 3 up to the design mark, then the extraction hydraulic cylinders 11 are activated. After activation of the hydraulic cylinders 11, the yoke 10 begins to rise relative to the support surface 8, while the thickness

Cathels 20, remaining in place, mastered

Q

$ 20 25

-Jq

,

 . Q

50

55

3664

grippers 13, which are able to move around axis 1 and rotate until they press with their upper part into the body of the hammer b. With a further rise, the yoke arms 13 interact with their upper part with the head 5 in the upper part of the driving projectile or with the projections 6 located on the lateral surface of the driving projectile, and the lower part, made in the form of a cylindrical surface with a cylindrical surface of the stops 16 of the same curvature, produces removing it from the ground.

The projectile is lifted along with the percussion mechanism 3 of the winch of the base machine.

If the driving projectile did not detach from the ground in one stroke of the hydraulic cylinders 11, then by lowering and lifting the yoke 10 again, it is removed for the following stops located on the side surface. When lowering the crosspiece 10, the upper part of the grippers 13 slides along the lateral surface of the driving projectile A, copying its profile.

After removing the drill projectile, the k of the yoke 10 with the supporting platform is raised, and the device is moved to a new mark.

Claims (1)

Invention Formula A device for the formation of wells in the ground, including a base machine with a mast, a percussion mechanism mounted on the mast, a driving projectile and a mechanism for removing the driving wedge, row, having a bearing pad with vertical guides and pushers, a traverse with extraction cylinders and stops, and grippers mounted on the cross-arm and interacting with stops and pushers, characterized in that, in order to simplify the design of the device, the driving projectile is made with protrusions on the lateral surface, and the grips are fixed on the ground erse and pivotally mounted to cooperate with protrusions pile projectile, the gripper bearing surfaces and stops are made cylindrical, cal and the same curvature. ////////////////////////////////////////////////// /// y //// 99ЈltjSl tls ft CCsXSESj SW YuL Compiled by L. Cherepenkina Editor V. Danko Tehrel M. Khodanych-Proofreader L. Patay Order 269 Circulation 86 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., D / 5 Subscription