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A crane

A technology of cranes and booms, which is applied to cranes and other directions, can solve the problems of difficult climbing operation of the boom, shaking of the hanging ring, and difficult operation, so as to achieve easy implementation of climbing operations, reduce scale and cost, and improve assembly efficiency effect

Inactive Publication Date: 2016-03-30
SANY AUTOMOBILE HOISTING MACHINERY
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  • Claims
  • Application Information

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Problems solved by technology

This hoisting method only needs the length of the jib to be greater than the maximum length of the tower section. Although it can reduce the scale and cost of the hoisting equipment, it needs to add additional hanging rings to the tower, which not only affects the integrity of the appearance of the tower , and the hanging ring is prone to shake and hit the tower
In addition, because the steel wire rope is flexible and the length of each section of the tower is relatively long, the hooking process of each steel wire rope requires additional tools to assist in the operation, and the operation of hanging in the air is difficult, which makes the climbing operation of the boom difficult and inefficient. low, and will affect the assembly efficiency of wind turbines

Method used

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Embodiment Construction

[0029] 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. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0030] see figure 1 , shows the structure of the crane provided in the first embodiment of the present invention. In this embodiment, the crane is used for hoisting wind turbines as an example for illustration. As shown in the figure, the crane at least includes: a mounting platform 3, a boom 31, a first hoop 1, a second hoop 2 and a telescoping mechanism.

[0031] Wherein, the lifting arm 31 is installed on the installation platform 3 , and in this embodiment the installation platform 3 is fixedly connected with the first hoop 1 , and in other embodiments, the installation platform 3 can be fixedly connected with the second hoop 2 . Preferably, a turntable is provided on the installation pla...

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Abstract

A crane is provided. The crane comprises a mounting table, a crane arm mounted on the mounting table, first hold hoops forming a first clamping cavity, second hold hoops forming a second clamping cavity and a telescoping mechanism connecting the first hold hoops and the second hold hoops, wherein the mounting table is fixedly connected to the first hold hoops or the second hold hoops. The crane can efficiently climb up and down a tower cylinder without the need of changing the structure of the tower cylinder, and crane climbing on the tower cylinder is easy to perform and is low in degree of operation difficulty, thus facilitating assembly efficiency increasing of wind turbine generators and assembly cost reducing of the wind turbine generators.

Description

technical field [0001] The present invention relates to the technical field of hoisting equipment, more specifically, to a crane. Background technique [0002] Wind energy is a new type of renewable energy with the most mature technology and the most conditions for large-scale development in the current clean energy field. In the past ten years, the global wind power generation field has advanced by leaps and bounds. From the previous 1.5MW wind turbines to the current popularization of 2MW wind turbines, 10MW wind turbines have also begun to be installed. [0003] The main structure of the wind turbine includes a tower, a nacelle and blades. The tower has multiple sections, and the height of each section of the tower ranges from 10 meters to more than 30 meters. The nacelle and blades are installed on the top of the tower. At present, the hoisting of wind turbines is mainly completed by large cranes or hoisting ships. The hoisting sequence is the tower, the nacelle and the...

Claims

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Application Information

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IPC IPC(8): B66C23/62
CPCB66C23/207
Inventor 吴国锐叶明刘江平
Owner SANY AUTOMOBILE HOISTING MACHINERY