Steel wire rope pre-tightening device for flexible attachment of tower crane

Abstract

The invention discloses a steel wire rope pre-tightening device for flexible attachment of a tower crane. The steel wire rope pre-tightening device comprises a first connecting plate, a second connecting plate, screws, a connector and a plurality of pulleys. The first connecting plate is in threaded connection to one end of each screw. The second connecting plate is in threaded connection to the other end of each screw. The positions, on the outer side of the first connecting plate and the outer side of the second connecting plate, of each screw are each provided with a nut. The connector comprises an upper connecting plate, a lower connecting plate and two rib plates, wherein the upper connecting plate and the lower connecting plate are parallel, and the two rib plates are fixed between the upper connecting plate and the lower connecting plate. The two rib plates are rotationally connected to the outer side of the first connecting plate. Second mounting plates perpendicular to the second connecting plate are fixed to the outer side wall of the second connecting plate. The pulleys are arranged on the second mounting plates. According to the steel wire rope pre-tightening device for flexible attachment of the tower crane, flexible attachment of the tower crane can be achieved, and for buildings and variable-section buildings with attachment points far away from a tower body, the field construction requirement is met, and safety operation, smooth mounting and smooth demounting of the tower crane are achieved.

Description

technical field [0001] The invention relates to a construction machine, in particular to a flexible attached steel wire rope pretensioning device for a tower crane. Background technique [0002] The special operation industry stipulates that the length of the rigidly attached attachment rod of the tower crane should not exceed 8m. For variable-section building structures such as hyperbolic cooling towers and construction operations where the attachment point is more than 30m away from the tower body, it is necessary to ensure that the tower crane When the construction work is completed and the normal joint removal is satisfied, the length of at least one attached tie rod is far more than 8m, and the weight of the super-long attached tie rod will inevitably cause deformation of the attached tie rod structure. Its correction, this will inevitably cause serious safety hazards to the daily construction of tower cranes; so rigid attachment is not suitable for ultra-long-distance ...

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Problems solved by technology

[0002] The special operation industry stipulates that the length of the rigidly attached attachment rod of the tower crane should not exceed 8m. For variable-section building structures such as hyperbolic cooling towers and construction operations where the attachment point is more than 30m away from the tower body, it is necessary to ensure that the tower crane When the construction work is completed and the normal joint removal is satisfied, the length of at least one attached tie rod is far more than 8m, and the weight of the super-long attached tie rod will inevitably cause deformation of the attached tie rod structure. Its correction, this will inevitably cause serious safety hazards to the daily construction of tower cranes; so rigid attachment is not suitable for ultra-long-distance attachment construction

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