How to install segmented blades
An installation method and blade technology, which is applied in the assembly of wind turbines, wind power generation, etc., can solve problems such as easy rework, low installation efficiency, misalignment between the blade root section and the blade tip section, and achieve improved service life and alignment accuracy , The effect of improving installation efficiency
Active Publication Date: 2019-03-08
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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Problems solved by technology
[0006] However, according to the installation method of the prior art, since there is no positioning datum in the docking process, it is impossible to ensure that the connecting piece 3 is concentric with the threaded holes of the blade root section 2 and the blade tip section 4, resulting in that the stud bolts are not perpendicular to the The bending moment load is generated by the blade, which affects the service life of the bolt
[0007] In addition, because the docking process depends on the positioning of the threaded hole, the outer surface of the blade root section and the blade tip section are misaligned, which affects the overall aerodynamic performance of the blade.
And because the docking process is all manual positioning, resulting in large errors, easy rework, and low installation efficiency
Method used
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[0039] Below, will refer to Figure 3 to Figure 12 A method of installing a segmented blade according to an exemplary embodiment of the present invention will be described in detail.
[0040] According to an exemplary embodiment of the present invention, the blade may be divided into two or more blade segments. For convenience of description, the blade will be divided into a root section 100 and a tip section 200 (such as Figure 8 shown) as an example for description. It should be understood that when the blade is divided into two or more blade segments, the method for assembling the blade root segment 100 and the blade tip segment 200 described below is also applicable to assembling the two or more blade segments together
[0041] Such as Figure 4 As shown, a plurality of threaded holes 110 are provided at the end surface of the blade root section 100 that is to be abutted with the blade tip section 200 . In addition, a plurality of threaded holes 210 (such as Figure ...
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The invention provides a mounting method for a segmented blade. The segmented blade comprises two or more blade segments. Multiple threaded holes are formed in the butt-joint end faces of the adjacent blade segments. The method comprises the steps that multiple first positioning components are arranged on the inner surface of each of every two adjacent blade segments, and multiple second positioning components corresponding to the first positioning components are arranged on the inner surface of the other blade segment in every two adjacent blade segments; multiple first positioning components and multiple second positioning components are correspondingly connected to the multiple positioning rods so that every two adjacent blade segments can be in butt joint with each other; and the first end of a connecting piece is fixed to a threaded hole in each blade segment, and the second end of each connecting piece is fixed to a threaded hole, corresponding to the threaded hole of the blade segment, of the other blade segment in every two adjacent blade segments. According to the mounting method for the segmented blade, the butt-joint precision of the segmented blade can be improved.
Description
technical field [0001] The present invention relates to a method for installing segmented blades, more specifically, to a method for installing segmented blades that can improve the installation accuracy. Background technique [0002] Blades are an important component of wind turbines. As the power of wind turbines continues to increase, the length of the blades is also increasing. [0003] However, the increase in the length of the blade increases the manufacturing difficulty and also brings a lot of inconvenience to the subsequent transportation. In order to solve the above problems, a technique of designing blades in segments has been developed. A plurality of threaded holes are provided at the butt joints of the segmented blades, and the segmented blades are installed by using bolts and connectors when installing the blades. The installation accuracy of the segmented blade affects the load of the connecting bolts at the segment and the aerodynamic performance of the b...
Claims
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IPC IPC(8): F03D13/10B23P15/04
CPCY02E10/72
Inventor 王徐莉樊祥希杨文智
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD