Foldable tower cap of miniature tower-type hoisting machinery

Abstract

A foldable tower cap of a miniature tower-type hoisting machinery comprises a tower cap, a balance arm, a rotation disk and a tower body; the rotation disk is installed at the top of the tower body; the balance arm is hinged to one side of the rotation disk; the tower cap is installed above the rotation disk; the tower cap is hinged to one side of the rotation disk via a hinging assembly disposed at a same side of the hinging position between the balance arm and the rotation disk; and four corners at the bottom of the tower cap are all provided with a fixing part, the corresponding positions at the top of the rotation disk are respectively provided with four fixing bases, and locking between the tower cap and the rotation disk is realized through locking of the fixing parts and the fixing bases. The beneficial effects comprise that flexible reliable connection is provided for self mounting and dismounting of the tower cap, extra auxiliary equipment is not needed any more for mounting and dismounting; and because the tower cap is rotatable and foldable and self mounting and dismounting are realized, workload for mounting and dismounting of the tower cap or under transportation operating conditions is furthest reduced, mounting, dismounting and conversion of transportation working conditions are relatively rapid, and transportation cost is saved.

Description

technical field [0001] The invention relates to an accessory part of a small tower crane, in particular to a foldable tower cap of a small tower crane, which belongs to the technical field of crane manufacturing. Background technique [0002] Tower crane is referred to as tower crane for short, also known as tower crane, a rotating crane whose lifting arm is installed on the upper part of a towering tower. The working space is large, and it 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 tower body, jib and 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. [0003] The tower cap on the top of the common sm...

AI Technical Summary

Problems solved by technology

[0003] The tower cap on the top of the common small tower cranes is an integral frame structure, which requires additional auxiliary lifting and transportation equipment when the tower cap is installed, disassembled and transported, and the height of the tower cap directly determines the lifting height of the auxiliary installation equipment Therefore, the tower cap of ordinary small tower cranes requires a large amount of work during installation, disassembly and transportation, and increases the use cost of the equipment.

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