Structure capable of mounting and dismounting balancing weight automatically by tower crane

Abstract

The invention discloses a structure capable of mounting and dismounting a balancing weight automatically by a tower crane. The structure comprises a lifting mechanism (11), a lifting pulley (12), an automatic balancing weight device (14) and a steel wire rope (13), wherein the lifting mechanism is installed on a balance arm (16); the automatic balancing weight device (14) comprises a support (21), a first upper pulley (22) and a second upper pulley (23) which are installed on the support (21), a lower pulley (24) which is positioned below the first upper pulley (22) and the second upper pulley (23) and is connected with a balancing weight (15); the steel wire rope (13) starts from the lifting mechanism (11), sequentially bypasses the lifting pulley (12), the second upper pulley (23), the lower pulley (24) and the first upper pulley (22), winds back and is fixed on the lifting mechanism (11). The lifting mechanism of the tower crane acts as a power source, so that the balancing weight can be stably and conveniently mounted and dismounted.

Description

technical field [0001] The invention relates to a structure for installing and dismounting a balance weight of a tower crane, in particular to a structure for self-installing and self-disassembling a balance weight of a tower crane. Background technique [0002] The balance weight of the tower crane is generally made of cast iron or reinforced concrete, and placed at the end of the balance arm to keep the torque balance of the tower crane during operation. At present, the most common way to install and disassemble tower cranes is to use hoisting equipment such as truck cranes to lift each structural part of the tower crane according to certain steps, and then complete the assembly or disassembly of the complete tower crane. The same goes for loading and unloading of counterweights. [0003] However, the current counterweight loading and unloading method has the following disadvantages: First, the use of truck cranes requires additional rental fees, which increases the cost....

AI Technical Summary

Problems solved by technology

[0003] However, the current method of loading and unloading the counterweight has the following disadvantages: First, the use of truck cranes requires additional rental fees, which increases the cost

The second is that in some special and complicated working conditions, it is difficult to use the truck crane to complete the loading and unloading of the counterweight: for example, when the installation site is small, the truck crane is inconvenient to operate; for another example, the tower crane sometimes needs to complete the arm change or disintegration in the air. At this time, part of the counterweight needs to be removed. At this time, the height of the counterweight from the ground may be as high as 200m.

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