SU975566A1 - Apparatus for lifting long structures - Google Patents

Description

(54) DEVICE FOR LIFTING LONG-DIMENSIONAL STRUCTURES

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The invention relates to a lifting and transport machinery, in particular to devices for lifting lengthy structures.

A device for lifting length-dimensional structures around the axis of the hinge is known, containing guides with a stop mounted on a structure on which a yoke is hinged on a trolley and connected with a cable with lifting means 1.

However, the use of this device for lifting lengthy structures leads to large forces in the lower part of the structure, which leads to unacceptable deformations.

The purpose of the invention is to reduce deformations of the base of the structure when lifting by reducing the bending and axial forces at the bottom of the structure.

For this purpose, the device is provided with additional Guides, one ends of which are rigidly attached to the main guides, while the other ends are made with openings and are connected to the structure by means of the axis of the support hinge.

The drawing shows a device for lifting a long structure.

The device contains mounted on the lateral sides of the structure 1, guides 2 and stops 3. The collar 4 is fastened to the carriage 6 by means of a hinge 5. The base of the structure 1 is fixed to the foundation 8 by means of a supporting joint 7. The mounting tower 9 is positioned from the foundation 8 convenient for installation of the structure in a vertical position. For unloading from the efforts of the lower part of the structure, the guides 2 are rigidly connected to the additional guides 10, reinforcing the joints with braces 11. The lower ends

 the guides 10 have holes, the centers of which during installation must coincide with the horizontal axial line of the hinge 7. When connecting the fixed part of the hinge 7 located on the foundation 8, its movable part fixed on the structure 1, at the beginning the elongated axis of the hinge 7 goes into the hole one guide 10, then the axis connects the movable and fixed parts of the hinge 7, after which the axis passes through the hole of the other guide 10. The device operates as follows. The structure 1 is lifted by turning it around the hinge 7 and moving the collar 4 with the carriage 6 along the guides 2 using the tension force of the cable 12. When the collar 4 touches the stop 3, the carriage 6 is torn off from the ground surface and the lift continues with a fixed position clamp on the stop. Finish lifting installation structure in a vertical position. The installation of additional guides allows the axial and axial forces normal to the axis to be redistributed from the bottom of the length of the numerical design to the support hinge by redistributing these forces to the foundation, which prevents the structure from being inadmissible at the installation stage.

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Claims (1)

t .1 Claims of the invention A device for lifting lengthy structures around the axis of the supporting joint, comprising guide rails mounted on a structure on which a hinge clamped on a trolley, connected by a cable with lifting means, characterized in that, in order to reduce base deformations the structure when lifting by reducing the bending and axial forces in the lower part of the structure, it is equipped with additional Guides, one ends of which are rigidly attached to the main guides and the other terminals are made with holes and are connected to the structure by means of the axis of the supporting joint. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 637325, cl. In 66 F 11/02, 1978 (prototype).