Anti-rotation device and method for lifting, suspending and moving a load

Abstract

An anti-rotation device (14) for suspending a load (12) under a machine (10) for lifting and moving this load (12) comprises a sling system (16A, 16B, 16C) provided with an element (18) for attachmentto the machine (10). The anti-rotation device for suspending further comprises a spacer beam (20), having a main longitudinal axis (Ai) and a vertical transverse yaw rotation axis (A2), comprising: an upper attachment system (22A, 22B) for attachment to the sling system (16A, 16B, 16C), designed so as to allow it to be suspended in an essentially horizontal arrangement of the main longitudinal axis of same (Ai), and freely about the vertical transverse axis of same (A2) under the machine (10) by means of the sling system (16A, 16B, 16C); a lower attachment system (24A, 24B, 26A, 26B) for attachment to the load (12), designed to allow the load (12) to be moved by the spacer beam (20) about the vertical transverse axis of same (A2). The spacer beam (20) comprises propulsion means (28) arranged so as to initiate the rotation of same, selectively in one direction or the other, about the vertical transverse axis of same (A2) when it is suspended from the machine (10) via the sling system (16A, 16B, 16C).

Description

technical field [0001] The invention relates to an anti-rotation device for lifting and moving machines for lifting and moving loads to hang the loads. The invention also relates to methods of lifting and moving loads using such an anti-swing device. Background technique [0002] The invention is especially but not only applicable to the field of maintenance of high-voltage lines in buildings and cables installed on continuous iron towers. Certain jobs, for example, require setting up and installing these towers. In view of the total weight of the tower and the limited lifting capacity of the machinery generally used for this type of work, the tower to be installed is designed as a plurality of separate parts to be installed or even assembled together, which are installed one after the other at the installation site. To this end, once the various components have been transported by road to the vicinity of the work site, each section is assembled, and then each section is l...

AI Technical Summary

Problems solved by technology

However, while it may be suitable for some not heavy loads, such as work gondolas, the operator rides it to handle the high-voltage line section, beyond a certain weight, such as the weight of a steel tower section, in view of the inertial stress of the load imposed on the helicopter , it can be dangerous

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