SU365424A1 - DEVICE FOR SCREWING SCREW PILES - Google Patents

Description

one

The invention relates to the field of bridge construction and is used for screwing and unscrewing screw piles with a surfacing tape of a span built on the axis of a bridge.

A device for screwing screw piles under water is known, which includes a pontoon on which a housing is mounted by means of brackets, with a cartridge inside the latter, and a drive.

However, the known device does not preclude the embedding of the pontoon and does not increase the stability of the floating tape of the bridge.

In order to prevent the pontoons from melting down and to increase the stability of the bridge floating tape in the proposed device, an obi.ma is rigidly fixed on the case, inside which there are shock absorbers connected by means of guide rods and stops with a ring fixed on the cartridge, and the stop is made with projections for fixing the drive.

FIG. 1 shows the proposed device for screwing screw piles under water, a general view; in fig. 2 is a section along A-A in FIG. one; in fig. 3 - a section of a floating tape of the bridge at the time of screwing the screw piles.

The device consists of a bracket / fixed in the lugs 2 of the pontoon 3, a cartridge 4 located inside the housing 5. The pontoon in the middle has an annular support lug 6 on which the housing rests. In the upper part, the cartridge is provided with an annular recess, in which half rings 7 are fixed, supported through rollers 8 on stops 9 of shock absorbers 10 and limiting movement

chuck down relative to the bracket. The stops 9 are rigidly connected to the rails 11 arranged in the cage 12 fixedly attached to the body. The stops 9 with guides // rest on the shock absorbers.

10, also located in the cage 12. To prevent the stops 9 from rotating, the cage 12 is provided with a groove 13 in which one of the stops is mounted. The stops have cutouts J4 which are connected in the working position.

high-speed fasteners-locks 15 of the screwing mechanism 16 installed on the device. The pontoons 3 are assembled into a floating tape 17, onto which automobiles 18 are driven, equipped with platforms 19 for transporting equipment and a hydraulic drive 20 of the automobile. The screwing mechanism 16 is removed from the platform 19 with the help of portable beams and secured to the upper part of the cartridge 4 by means of the lock 15, and the cartridge

crepe t on pile 21.

The device works as follows.

The torque from the screwing mechanism 16 through the grooves 4 of the natron is transmitted to the pile of the pile 21. Due to the friction forces, the cartridge and the associated screwing mechanism 16 move down along with the pile 21, the cartridge through the half ring 7, roller 8 presses the stops 9 and moves them downward, squeezing the shock absorbers 10. At the moment of changing the direction of movement of the drive 20, a small pause is formed in the operation of the screwing mechanism 16, and the stem 4 under the influence of the shock absorbers 10 returns to its original position. Then the cycle repeats.

Subject invention

Claims (2)

1. A device for screwing screw piles under water, including peptone, on which a case is mounted by means of brackets, and a natron is placed inside the latter, and a drive, characterized in that, in order to prevent the pontoons and increase stability of the bridge mounts, the case is rigidly fixed a yoke inside which are placed dampers connected by means of guide rods n stops with a ring fixed on the cartridge. 2. The device according to claim 1, characterized in that the stop is made with protrusions for securing the drive. / b / $ USJ