Crane
A crane and tensioning mechanism technology, applied in the direction of cranes, etc., can solve the problems of hanging ring shaking, difficult operation, hitting the tower, etc., and achieve the effects of reducing scale and cost, easy climbing operation, and improving assembly efficiency.
Inactive Publication Date: 2016-03-02
SANY AUTOMOBILE HOISTING MACHINERY
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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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[0028] 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.
[0029] see figure 1 , shows the structure of the crane provided by the embodiment of the present invention. In this embodiment, the crane is used for hoisting a wind turbine as an example for description. 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.
[0030] Wherein, the boom 31 is installed on the installation platform 3, preferably, the installation platform 3 is provided with a turntable, the boom 31 is hinged to the turntable, and the turntable can realize 360° rotation. A luffing cylinder is arranged between the boom 31 and the turntable, and the luffing cylinder is used to control the ...
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The invention provides a crane. The crane comprises a mounting table, a rotary table arranged on the mounting table, a cargo boom, first clamps, second clamps and a telescopic mechanism. The cargo boom is hinged to the rotary table. A first clamping cavity is defined by the first clamps. A second clamping cavity is defined by the second clamps. The mounting table is fixedly connected with the first clamps or the second clamps. The telescopic mechanism is connected between the first clamps and the second clamps. According to the crane, the crane can efficiently ascend or descend along a tower drum without changing the structure of the tower drum, the climbing operation of the crane on the tower drum is easy to implement, and operation difficulty is low; and the assembling efficiency of a wind turbine generator can be increased, and the assembling cost of the wind turbine generator can be reduced.
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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Inventor 刘江平吴国锐李明刚
Owner SANY AUTOMOBILE HOISTING MACHINERY