Tower crane with windproof structure

Abstract

A tower crane with a windproof structure relates to a kind of construction machinery. The lifting arm and the balance arm are rotatably arranged on a rotary platform. There are A stay rope tower and B stay rope tower on the top of the lift arm and balance arm. The rope stretching device and the B rope stretching device, there is a rope connection between the A rope tower and the A rope stretching device, there is a B rope connection between the B rope tower and the B rope stretching device, and the jacking sleeve The top is equipped with a counterweight lifting device, which can move up and down inside the standard section. The balance arm is provided with a counterweight slideway that matches the counterweight lifting device. The lifting arm and the balance arm are respectively equipped with armor ropes for lifting There is a fixed hook that cooperates with the first rope lifter and the second rope lifter on the base. The invention not only can quickly install and disassemble the counterweight when a typhoon comes or other strong wind conditions, but also can bend the lifting arm and the balance arm after the counterweight is removed to reduce the wind receiving area and keep the center of gravity of the tower stable.

Description

technical field [0001] The invention relates to a construction engineering machine, in particular to a tower crane for a construction site. Background technique [0002] Tower cranes are referred to as tower cranes for short, also known as tower cranes, which originated in Western Europe. It is a rotating crane with a boom mounted on the top of a tall tower. The tower crane has a large working space and is mainly used for vertical and horizontal transportation of materials and installation of building components in house construction. It consists of three parts: metal structure, working mechanism and electrical system. The metal structure includes the tower body, the boom and the base, etc. The working mechanism has four parts: lifting, luffing, slewing and walking. The electrical system includes motors, controllers, power distribution cabinets, connecting lines, signals and lighting devices, etc. With the advancement of engineering technology, the floors of buildings a...

AI Technical Summary

Problems solved by technology

With the advancement of engineering technology, the floors of buildings are getting higher and higher, making the required tower cranes higher and higher, but too high tower cranes have the problem of poor stability, especially during typhoons in the southeast coast, often An incident in which a tower crane was hung upside down in a typhoon day caused heavy casualties

In addition, all tower cranes need to install counterweights. Most of the counterweights are hoisted to the tower cranes by other cranes. It is troublesome to install and disassemble, which makes it impossible for the tower cranes to be quickly installed.

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