Movable type tower crane

Abstract

The invention discloses a movable type tower crane which comprises a bottom frame, wherein the bottom frame is articulated to and supported on a stand of a locomotive; a support device is movably arranged between the lower part of the bottom frame and the stand of the locomotive; a work arm and a balance arm are respectively articulated to and supported at the two sides of the top of the bottom frame; the work arm and the balance arm are opposite to each other; a suspension arm folding and unfolding device is arranged in an inner cavity in the top of the bottom frame; two stay cords are tied between the suspension arm folding and unfolding device and the work arm and between the suspension arm folding and unfolding device and the balance arm respectively; a balancing trolley is arranged on the balance arm in a sliding way; a lifting trolley is arranged on the work arm in a sliding way. The movable type tower crane not only is convenient to move and rapid and convenient to transfer, but also is high in lifting height, long in lifting distance and high in lifting efficiency.

Description

technical field [0001] The invention relates to engineering hoisting equipment, in particular to a movable tower crane installed on a locomotive. Background technique [0002] In the construction process of large buildings such as buildings, engineering tower cranes are essential to transport building materials and related objects on the ground to each floor to be built. Generally, larger buildings have higher floors, a large amount of construction, and a long construction period. In engineering, fixed tower cranes with firm feet, high tower height, long lifting distance, and large working range are often used as lifting and lifting tools. Because the foundation needs to be poured before the fixed tower crane is built, and it takes a lot of manpower and time to install the tower crane. , Construction amount is little, construction period is short, then spend a large amount of manpower and time to be used to build above-mentioned fixed tower crane and seem very uneconomical....

AI Technical Summary

Problems solved by technology

Because the foundation needs to be poured before the fixed tower crane is built, and it takes a lot of manpower and time to install the tower crane. , the building volume is small, and the construction period is short, it is very uneconomical to spend a lot of manpower and time on building the above-mentioned fixed tower cranes.

For this reason, when constructing such small buildings in engineering, a one-armed crane is often used to complete the hoisting of building materials and related objects. Due to its structure and its own rigidity, it has defects such as low lifting height, small lifting distance, and insufficient lifting tonnage. In actual use, its lifting height does not exceed the height of three floors, and its lifting distance cannot cover the entire floor. The weight of the lifting object is relatively small, and the lifting efficiency is not high

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