SU1115995A1 - Arrangement for setting sections of long-size structure on foundation in vertical position - Google Patents

Abstract

DEVICE FOR SETTING SECTIONS lengthy STRUCTURES ON FOUNDATIONS upright, for example, by helicopter, comprising resilient orienting member and attached thereto the elastic member, characterized in that, in order to increase the reliability of mating sections lengthy design, it is provided with a rod and the spring-loaded zshdelkoy, moreover, the rod is made with a groove in which the pivotally indicated latch is hingedly mounted, wherein the elastic element is made in the form of a conical spring attached by its smaller m base to the elastic orienting element, and a large base - to the inner rod.

Description

The invention relates to a back-lift mechanical engineering and can be used for installation by vertical building or horizontal positioning of sections of lengthy structures, for example, for installing supports in the construction of power lines using a helicopter.

A device is known for placing sections of a lengthy structure on a foundation in a vertical position, for example, using a helicopter, comprising an elastic orienting element and an elastic element SP attached thereto.

However, the known device requires a high accuracy of maintaining a hanging vert-oleta with a mounted section over the previously mounted one, since any deviation in the direction of an increase in the hanging error leads to the breakage of elastic elements.

In addition, the stiffness of the elastic elements is maximum at the point of their attachment to the elastic elastic element and decreases towards their ends, while at the initial moment of joining the sections the rigidity of the device should be minimal for more reliable joining, and the measures of convergence of the joined elements by its stiffness must be increased to prevent the offset between the mounted and mounted sections.

The purpose of the invention is to improve the reliability of the joining of sections of lengthy design. The goal is achieved by the fact that a device for installing sections of a lengthy structure on a foundation in a vertical position, for example, using a helicopter, contains a elastic orienting element and is attached to it. The elastic element is provided with a rod and a spring-loaded latch, the rod being made with a groove wherein the aforementioned latch is hingedly mounted, wherein the elastic element is made in

- the form of a conical spring, attached by its smaller base to the elastic orienting element, and by a large base to the above-indicated rod. ,

Fig; 1 shows two devices and mounted sections in the installation position, general view; Fig. 2 shows the proposed device with mounted sections.

The device consists of an elastic element in the form of a conical spring 1, attached with its lower base to the elastic orienting element 2 made of steel or synthetic rope. The upper base of the conical spring 1 is attached to a rigid cylindrical rod 3 with a thread on the opposite end. The threaded end of the rod 3 is provided with a nut 4. In the cylindrical rigid rod 3 there is a groove in which on the axis 5 a latch 6 with a spring 7 is hingedly mounted.

The installation of section 8 on section 9 is carried out using a helicopter (not shown). .

The devices, the minimum number of which when installing the sections is equal to two, are fixed (on the ground) in the diagonally arranged rotors of the mounted section 8 with the help of the threaded rod 3 and the nut 4. The mounted section 8 is fixed on the external suspension of the helicopter (not shown). Next, the helicopter hangs over the installation site sections, and the elastic orienting elements 2 are passed through the corresponding holes in the mounted section 9.

When tensioning the elastic orienting elements 2 with the help of winches according to the number of halyards or manually, the mounted section 8 is orientated and its longitudinal and transverse oscillations are extinguished. During the subsequent descent of the helicopter with the mounted section 8 and the tension of the elastic orienting elements 2, the conical springs 1 enter the holes of the mounted section 9. Thus, an accurate longitudinal-transverse and azimuthal orientation of the mounted section 8 relative to the mounted section 9 occurs and the final thickening of its oscillations. With further reduction of the verterapt, the conic springs 1 become more and more precise guidance of the mounted section 8 in the direction and its design position.

In the final stage of installation, rigid cylindrical rods 3 are introduced into the holes of section 9, having carried out the final accurate guidance of the mounted section 8 to the design position, while the spring-loaded latch 6

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rotates about the axles 5, and with the final alignment of the mounting joint, the mounted section 8 is fixed against the previously installed section 9.

Similarly to the above, the sections are joined in a horizontal position.

159954

In the proposed device, in comparison with the known, the reliability of the joining of the sections is improved, the oscillations of the mounted 5 section are suppressed, the safety of the installation is improved, and the time required for its installation is reduced.

Claims (1)

DEVICE FOR INSTALLING SECTIONS OF LONG-DIMENSIONAL CONSTRUCTION ON THE FOUNDATION IN THE VERTICAL POSITION, for example, by means of a helicopter containing an elastic orienting element and an elastic element attached to it, characterized in that, in order to increase the reliability of joining the sections of the long structure, it is equipped with a rod the latch, and the rod is made with a groove in which the aforementioned latch is pivotally mounted, while the elastic element is made in the form of a conical spring attached with its smaller base lowering to the elastic orienting element, and a large base to the inner core. _and ί = g S sl