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tower crane

A technology of tower cranes and jibs, which is applied to cranes and other directions, can solve the problems of multiple additional platforms, complicated loading and unloading, and the overall structure of the balance arm, and achieves improved safety, convenient and fast assembly and disassembly, and convenient daily maintenance. Effect

Active Publication Date: 2015-10-28
ZOOMLION HEAVY IND CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a tower crane to solve the problems in the prior art that the overall structure of the balance arm is complex, there are many additional platforms, and the loading and unloading is complicated

Method used

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Embodiment Construction

[0033] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0034] Such as Figure 3 to Figure 12 As shown, according to the embodiment of the present invention, the tower crane includes a balance arm 10, a boom 20, a tower head 30, an upper support 40, a lower support, a slewing mechanism and a tower body, wherein the lower support is fixedly arranged on the tower On the body, the upper support 40 is rotatably arranged on the lower support through a slewing mechanism, the bottom of the tower head 30 is fixedly arranged on the upper support 40 , and the balance arm 10 and the lifting arm 20 are fixedly connected on the tower head 30 . The tower crane also includes a hoisting mechanism 50, which is fixedly arranged on the upper support 40, and is used for hoi...

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Abstract

The invention provides a tower crane. The tower crane comprises: a balance arm (10), a crane arm (20), a tower head (30) connected with the balance arm (10) and the crane arm (20) and disposed therebetween, an upper bearer (40) fixedly disposed at the bottom of the tower head (30), and a hoisting mechanism (50) fixedly disposed on the upper bearer (40). The tower crane of the invention is capable of solving the problems that a crane has a complex balance arm total structure and many additional platforms, and is complex to assemble and disassemble in the prior art.

Description

technical field [0001] The invention relates to the field of construction hoisting machinery, in particular to a tower crane. Background technique [0002] Tower crane is an important construction machinery and equipment, widely used in construction and other industries. According to the structural form, it can be divided into two types: hammerhead and flat head tower cranes. But their main structural forms are basically the same. In particular, the layout of the three major mechanisms is basically the same, for example: the hoisting mechanism is located at the position of the balance arm close to the counterweight; the luffing mechanism is located at the first boom section of the boom; the slewing mechanism is located on the upper support. [0003] When the tower crane runs for a long time, the three major mechanisms run for a long time and wear and consume a lot, resulting in a high failure rate of the mechanism components, especially the lifting motor and reducer are pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/72B66C23/62
Inventor 谭泽松郑昌明周海建
Owner ZOOMLION HEAVY IND CO LTD
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