Multifunctional rotary derrick

Abstract

The invention discloses a multifunctional rotary derrick which comprises a main derrick body and a rocker arm, wherein the top of the main derrick body is provided with guiding pulleys, and the top of the rocker arm is provided with a load bearing pulley and a lifting pulley. The multifunctional rotary derrick further comprises a base, a rotary column is vertically arranged in the center of the base, a plurality of idler wheels are evenly arranged on the base around the rotary column, a rotary base connected to the rotary column in a sleeved mode and in contact with the idler wheels is arranged above the base, a connecting cover is fixedly arranged at the position, corresponding to the rotary column, of the rotary base, the bottom of the main derrick body is hinged to the upper portion of the connecting cover, the rocker arm is hinged to the side wall of the connecting cover or the rotary base, and two sets of rope winding shafts and a fixed pulley are further and fixedly arranged on the rotary base. The multifunctional rotary derrick is simple in structure and convenient to disassemble and assemble, is used for tower material lifting in the vertical direction, is capable of conveniently carrying out 360-degree free rotation and meets the requirement of lifting work with different heights and different angles in the iron tower erecting process.

Description

technical field [0001] The invention relates to a hoisting device used when erecting an iron tower, in particular to a rotating holding pole. Background technique [0002] In the construction of transmission lines, high-voltage iron towers need to be erected. The high-voltage iron towers are generally four sets of square-shaped iron towers with a truss structure assembled from several steel rods as tower materials. When erecting a high-voltage iron tower, first build the foundation and tower foot on the ground, and then gradually build up the tower material components. [0003] When the high-voltage iron tower is erected to a certain height, in order to safely transport each component to the erected height, it is necessary to use lifting tools to lift the tower material of the high-voltage iron tower. However, due to the distance between the four sets of truss structures of the high-voltage iron tower, and the general terrain of the place where the high-voltage iron tower i...

AI Technical Summary

Problems solved by technology

During the hoisting operation of the rocker arm, the lifted tower material is generally directly below the rocker arm, and cannot be shifted horizontally. If horizontal rotation displacement is required, the main rod, rocker arm and bracket must be adjusted Re-disassembly and overall adjustment of the main rod and rocker arm rotation, the operation is cumbersome and requires a lot of waste of manpower. Due to the heavy weight of the rocker arm, it is also easy to cause danger

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