Multi-point loading and side-pulling testing apparatus for static tests on blades of large wind turbines

A technology of wind rotor blades and static force test, which is applied in the direction of measuring device, using stable tension/pressure test material strength, instrument, etc., to achieve the effect of flexible movement

Inactive Publication Date: 2012-05-16
AVIC HUITENG WINDPOWER EQUIP
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Problems solved by technology

Multi-point loading needs to be equipped with a suitable static test loading device. At present, the development of domestic wind power blade testi

Method used

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  • Multi-point loading and side-pulling testing apparatus for static tests on blades of large wind turbines
  • Multi-point loading and side-pulling testing apparatus for static tests on blades of large wind turbines
  • Multi-point loading and side-pulling testing apparatus for static tests on blades of large wind turbines

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Embodiment Construction

[0030] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0031] Such as Figure 1-3 As shown, a multi-point loading side tension test device for static test of large wind turbine blade provided by the present invention, it consists of at least one fixing seat (not marked because it is the prior art) parallel to the ground to fix the blade to be tested 8, wherein: on one side of the blade 8, several side pull brackets 1 are arranged at intervals perpendicular to the ground, and the number of distribution of the side pull brackets 1 corresponds to the number of segmented test parts of the blade to be tested, according to the length of the blade 8 and the reference According to the test standard, the blade is segmented, and the side support 1 is provided with an oblique side support on the side facing the ...

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Abstract

The invention discloses a multi-point loading and side-pulling testing apparatus for static tests on blades of large wind turbines, which is characterized in that a to-be-tested blade is fixed by a permanent seat parallel to the ground, a plurality of side-pulling supports are arranged on one side of the blade and perpendicular to the ground, and the distribution number of the side-pulling supports is corresponding to the number of blade loading points; the testing apparatus is provided with at least a power plant, and the power plant loads static forces on sectionalization test parts of the blade by the plurality of side-pulling supports; the height of a fixed pulley on each side-pulling support can be adjusted with the height of the blade loading point, and the position of each side-pulling support can be flexibly moved according to different blade loading positions. The testing apparatus disclosed by the invention can adapt to tests on different-sized blades, and the blade loading points and the fixed pulleys are always in horizontal positions, therefore, a situation that forces transferred to the blade loading points through pulling a rope are always in the horizontal direction is ensured, and real and reasonable test data are obtained, thereby achieving a test effect on multi-point loading in static tests.

Description

technical field [0001] The invention relates to a novel static loading test device, in particular to a multi-point loading side tension test device for the static test of wind turbine blades. Background technique [0002] With the increase of blade length, single-point loading and two-point loading can no longer meet the test requirements in the static loading of large wind turbine blades. Generally, multi-point loading is used. Compared with single-point loading and two-point loading, this method can Produces more realistic shear loads. Multi-point loading needs to be equipped with a suitable static test loading device. At present, the development of domestic wind power blade testing technology is relatively late, and there is no corresponding static test multi-point loading test device to complete the blade test requirements. Contents of the invention [0003] The purpose of the present invention is to propose a multi-point loading side tension test device for static te...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N3/02
Inventor 田卫国赵伟恒韩玉清邢晓坡吕路勇王建英
Owner AVIC HUITENG WINDPOWER EQUIP
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