SU1437470A1 - Method and apparatus for erecting thin-wall cylindrical shells insertable into each other for hydraulic structures - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to hydraulic engineering. The purpose of the invention is to simplify the installation of shells and the expansion of technological capabilities due to the independent rotation of the shells relative to each other. When implementing the mounting method on the stationary rollers, the outer casing 2 is installed. Then, a support made in the form of a guide groove is additionally coaxial with the roller supports. Two roller carts 3 are installed on the chute, on which the inner shell 1 is placed. When the inner shell 1 is inserted into the outer shell 2, reciprocating and rotational movements are independent of each other until the shells are fully aligned. Upon reaching the design position, the required gaps between their walls are fixed by means of clamps 11 and the roller carts 3 are released from the weight of the inner shell 1. The device contains a frame consisting of longitudinal and transverse elements. The transverse elements are made with a curvature of a given radius. Rollers are mounted on transverse elements that interact with the inner surface of outer sheath 2. The rollers are the running gear and move the inner sheath 1 along the outer 2. The longitudinal members are equipped with rotary rollers. The longitudinal and transverse elements are interconnected rigidly with a given eccentricity. Transverse elements may be flexible. 2 sec. and 1 z. p. f-ly, 5 ill. (L

Description

from 1

four:

The invention relates to hydraulic construction and can be used in the construction of protective structures, embankments, mooring support, made in the form of guide groove 4, so that the end of groove 4 coincides with the edge of the outer shell 2 without clearance.

Nok, in particular, during the construction of the head, the radius of the guiding chute is 4

support, made in the form of guide groove 4, so that the end of groove 4 coincides with the edge of the outer shell 2 without a gap.

pile sections.

The purpose of the invention is to simplify installation and expansion of technological capabilities due to independent rotation of the shells relative to one another.

taken to be equal to the inner radius of the outer shell 2. Two roller carriages 3 are installed on the guide chute 4, on which the inner shell 1 is placed. Shells 1 and 2 are turned. In FIG. 1 shows the method of mounting 10 is tipped around the longitudinal axis, the shells are made (on the left — the inner sheath, preparatory operations for welding, fitting — before inserting it into the outer sheath, on the right — the stiffeners to the grooves and the openings — assembled shells one into the other); to the nozzles, with some of

they are welded inside the outer shell 2 and outside the inner shell 1. The inner shell 1 is rotated on the swivel rollers 9 of the carriage 3, and the outer shell 1 on the stationary roller supports 5, until they are conveniently positioned to enter the inner shell 1 into the cavity of one another, in the form of 20 outer 2.

roller carriage 3 installed on the input operation is carried out with the fixed outer casing 2. On the roller carriages 3, the inner casing 1 is moved (manually or by means of a drive) into the cavity of the outer casing 2 to

construction of hydraulic structures, 25 design position. At the same time, due to the particular head sections of the piles, the rib-design features of the roller carriage 3 have a reciprocating movement of the inner shell 1 can alternate or be produced simultaneously with its rotation around the longitudinal axis in order to circumvent the movement and stiffening ribs that prevent movement shell elements.

FIG. 2 shows section A-A in FIG. one; in fig. 3 - roller trolley, plan; in fig. 4 shows a section BB in FIG. one; in FIG. 5 - clamp, section (node I in Fig. 1).

A device for mounting thin-walled cylindrical shells 1 and 2, assembled an erecting chute 4 located coaxially with stationary roller supports 5. The mounted thin-walled metal cylindrical shells 1, 2 used for

stiffness, nozzles, holes, which during the installation process are welded inside the outer shell 2 and outside the inner shell 1.

Roller cart 3 includes a frame consisting of longitudinal 6 and transverse elements f. The transverse elements 7 are made with a curvature of a given radius. Rollers 8 are mounted on transverse elements 7 and interacting with the inner surface of outer shell 2. Rollers 8 are the undercarriage of the carriage and move the inner shell 1 along outer 2. Longitudinal frame elements 6 are equipped with turning rollers 9,

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When assembled, shells are a section of a pile of a hydraulic structure. After installing the shells 1 and 2 one into another in the design position, they fix the required gap between the walls of the shells 1, 2 with, for example, calibrating clamps AND installed on

the ends of the shells 1 and 2. In this case, the internal servants for turning the inner shell 40 by clamps 11 of the multi-slot 1 around the longitudinal axis. Longitudinally lift above roller supports

carts 3, ensuring the coaxiality and rigidity of the structure required for the further elec- tric grease and welding of stiffeners and nozzles. Freed

6 and transverse elements 7 are rigidly interconnected with a given eccentricity. The transverse elements 7 can be completely flexible or composite.

jointly hinged. The curvature given by the weight of the inner shell 1 of the roller radius can be changed during retooling due to the flexibility of the material or the articulation of the joint eliminated during installation by installing at least one stiffening element 10. This design feature allows the carriage to fit into the limited gap between the walls outer 2 and inner 1 shells when changing the diameter of the latter. The method of installation of shells collected

The trolleys 3 are removed from the cavity of the outer shell 2 and re-placed on the guide groove 4 to repeat the assembly cycle.

Clamps 11 consist of a replaceable insert-gauge 12, upper and lower jaws 13 and 14 with threads in different directions, moving with the help of a power screw 15 with threads in different directions.

at the ends of the pin 16, and performed one inside the other, is as follows. 55 simultaneously two functions: provide with To stationary roller supports 5 with a prescribed accuracy the size of the gap between

the walls of the shells and their alignment, as well as rigidly fix the position of the shells alone

the outer sheath is poured in. Then the coaxial rollers 5 are additionally placed

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When assembled, shells are a section of a pile of a hydraulic structure. After installing the shells 1 and 2 one into another in the design position, they fix the required gap between the walls of the shells 1, 2 with, for example, calibrating clamps AND installed on

the ends of shells 1 and 2. In this case, the inner sheath 1 with clamps 11 is somewhat raised above the roller supports

The trolleys 3 are removed from the cavity of the outer shell 2 and re-placed on the guide groove 4 to repeat the assembly cycle.

Clamps 11 consist of a replaceable insert-gauge 12, upper and lower jaws 13 and 14 with threads in different directions, moving with the help of a power screw 15 with threads in different directions.

at the ends of the pin 16, and 5 simultaneously perform two functions: provide with a given accuracy the gap between

in another. Clamps 11 are installed on the ends of the shells in an amount of not less than two, and after the electric lifting of the structural elements of the shells are removed.

Claims (3)

Invention Formula . The method of installation of thin-walled cylindrical shells, assembled one into another, for the construction of hydraulic shell elements, and when the design of the shells is achieved, fix the required gaps between their walls by means of clamps, which are installed on the ends of the shells and release the roller carts from the weight of the inner shell. 2. Device for mounting thin-walled g. -. cylindrical shells assembled structures, which consist in the fact that my-O one to another, for erecting hydrotech- able shells with constructive constructions, containing a frame of elements, are mounted on supports of co-axial and transverse elements with the role of one another with the possibility of rotation, characterized in that the rollers An inner shell is inserted into the hollow-core elements mounted relatively external, characterized in that, for the purpose of 5 rollers of transverse elements with simplified installation and expansion with technological eccentricity and transverse the elements of the gigantic capabilities are due to the independent-made radius of curvature, and in each turning of the shells one relative rollers of the transverse elements interact with the other, the inner shell is installed with the inner surface of the outer roller carts and when the sheath is inserted, and the rollers of the longitudinal ele -20 cops - with the outer surface of the reciprocating post-envelope dependent on each other. body and rotational movements with 3. The device according to p. 2, different the power of running and turning rollers by the fact that the transverse elements are made lay up to the full combination of constructive-flexible. shell elements, and when the design of the shells is achieved, fix the required gaps between their walls by means of clamps, which are installed on the ends of the shells and release the roller carts from the weight of the inner shell. (ag.1 e: rtsg, 2 fzg.5 (rig.