Tower crane with wind-proof structure

Abstract

The invention relates to building engineering machines, in particular to a tower crane with a wind-proof structure. A crane boom and a balance arm are rotatably arranged on a rotary table, and a first guyed tower and a second guyed tower are arranged at the top of the top end of the crane boom and the top of the top end of the balance arm. A first cord stretching device and a second cord stretching device are arranged at the tops of the towers. The first guyed tower and the first cord stretching device are connected through a first cord, and the second guyed tower and the second cord stretching device are connected through a second cord. A balance weight lifting device is arranged at the top in a jacking sleeve frame, and can vertically move in standard knots. A balance weight slideway matching the balance weight lifting device is arranged on the balance arm, a first cord lifter and a second cord lifter are arranged on the crane boom and the balance arm respectively, and fixed hooks matching the first cord lifter and the second cord lifter are arranged on a base. A balance weight can be fast mounted and dismounted in typhoon weather or other strong wind states, and after the balance weight is dismounted, the crane boom and the balance arm can be bent to reduce the wind area and keep the gravity center of a tower body 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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