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Balance jib for tower cranes

A tower crane and balance arm technology, applied in the field of balance arms, can solve the problems of high cost, inconvenient transportation, hidden safety hazards of disassembly and assembly in the air, etc., to improve the safety factor of use, reduce the risk of disassembly and assembly, and facilitate disassembly and assembly Effect

Active Publication Date: 2016-11-30
SICHUAN CONSTR MACHINERY GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first type of counterweight made of cast iron increases the price of the whole tower crane due to its high cost, thereby reducing the purchase rate of the boom tower crane; the second type of counterweight made of concrete, although its cost is low, However, its small specific gravity, large volume, and inconvenient transportation bring great safety hazards to disassembly and assembly in the air

Method used

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  • Balance jib for tower cranes
  • Balance jib for tower cranes
  • Balance jib for tower cranes

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Experimental program
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Effect test

Embodiment Construction

[0023] Such as figure 1 , figure 2 , image 3 as well as Figure 4 Shown is a balance arm for tower cranes provided by the present invention with low manufacturing cost, low risk of disassembly and assembly in the air, and high safety factor. The balance arm includes a balance arm body 1, and a counterweight structure 2 is arranged at the end of the balance arm body 1. It is characterized in that: the counterweight structure 2 includes a counterweight shell 3 and a filler 4. In the The counterweight shell 3 is provided with a mounting and fixing mechanism 5, the filler 4 is filled in the counterweight shell 3, and the counterweight structure 2 is arranged on the counterweight shell 3 through the mounting and fixing mechanism 5. Describe the end of the balance arm body 1. In the above scheme, since the counterweight structure 2 is composed of the counterweight shell 3 and the density filled in the counterweight shell 3 is not less than 4.0g / cm 3 Filler 4 is formed, becaus...

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PUM

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Abstract

The invention discloses a balance arm, in particular discloses a balance arm used for a tower crane, and belongs to the technical field of design and manufacture of lifting equipment components. Provided is a balance arm of a tower crane with low manufacturing cost, low risk of disassembly and assembly in the air, and high safety factor. The balance arm includes a balance arm body, and a counterweight structure is arranged at the end of the balance arm body. The counterweight structure includes a counterweight shell and a filler, and a fixed installation mechanism is arranged on the counterweight shell. The filler is filled in the weight shell, and the weight structure is arranged at the end of the balance arm body through the fixed installation mechanism of the weight shell.

Description

technical field [0001] The invention relates to a balance arm, in particular to a balance arm used for a tower crane, and belongs to the technical field of design and manufacture of lifting equipment components. Background technique [0002] Tower cranes used for urban construction generally work in places with dense buildings, and the working range is very limited, so the design of the balance arm is particularly important. Therefore, the jib tower crane with a short balance arm has been favored by users in urban construction of favor. [0003] Due to the short balance arm of the existing jib tower crane, it has great advantages in densely built cities. However, when designing the counterweight, the biggest disadvantage of this type of tower crane is the short balance arm. [0004] According to the bending moment formula: M=F×L: for the same bending moment, the smaller L is, the larger F will be. Therefore, the weight of the counterweight of the jib tower crane is much l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/72
Inventor 王晓平周成强
Owner SICHUAN CONSTR MACHINERY GRP