Flat-top tower crane with jacking section adding mechanism arranged below

Abstract

The invention discloses a flat-top tower crane with a jacking section adding mechanism arranged below. The flat-top tower crane comprises a foundation base, a main arm, a climbing frame and a hydraulic system, a vertical sliding support is installed on the foundation base, the climbing frame is installed in the vertical sliding support, the left side and the right side of the vertical sliding support are each provided with a hydraulic cylinder, cylinder bodies of the hydraulic cylinders are fixed to the foundation base, and piston rods of the hydraulic cylinders are connected with the climbingframe; the main arm comprises main arm sections stacked one by one from bottom to top, and the lowest main arm section is placed in the climbing frame; and one side face of the vertical sliding support is provided with an inlet and outlet of a main arm section to be installed, and a channel allowing the main arm section to be installed to penetrate up and down is formed in the climbing frame. Compared with the prior art, the two symmetrically-arranged hydraulic cylinders are adopted for driving the climbing frame, symmetrical jacking is achieved, and the jacking capacity and balance of the flat-top tower crane can be improved; and meanwhile, the structure that the climbing frame is arranged below is adopted, the hoisting time and energy consumption can be saved, and meanwhile the time andperson-time of high-altitude operation can be avoided.

Description

technical field [0001] The invention relates to a flat-top tower crane with a jacking and knuckle mechanism placed below, in particular to a hydraulic jacking and knuckle system for a flat-top tower crane. Background technique [0002] Tower crane is an important equipment for the modern construction industry to realize production mechanization and automation, reduce physical labor intensity and improve production efficiency. Flat-top tower cranes without tower caps have the advantages of low installation height, simple loading and unloading, simple stress on the steel structure of the boom, and long life, and are increasingly used in the construction industry. With the development of prefabricated buildings, single components are getting heavier and heavier, and lifting vertical transportation equipment with large lifting capacity has become the first choice in the construction of large-scale prefabricated buildings. In prefabricated buildings, it is necessary to use a buil...

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Problems solved by technology

[0004] Purpose of the invention: In view of the problems that the existing tower crane climbing and jointing mechanism is installed on the top of the tower crane, there are problems such as high-altitude operations, large safety hazards, high labor intensity, and low work efficiency. The flat-top tower crane can improve the working efficiency of the flat-top tower crane in jacking and adding knots, and at the same time can increase the jacking capacity and avoid high-altitude operations. The flat-top tower crane in this case can adapt to the climbing and knotting work of large-scale tower cranes

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