Wind power generation blade test device
A technology for wind power generation blades and test devices, which is applied in wind power generation, measurement devices, vibration testing, etc., can solve problems such as expensive, complex equipment, and large errors, and achieve the goal of enhancing loading strength, improving accuracy, and promoting loading modes effect of change
Active Publication Date: 2021-03-26
通标标准技术服务有限公司
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Problems solved by technology
However, the current fatigue tests are all simply using hydraulic loading or resonance loading. Although hydraulic loading is accurate and reliable, it is expensive and expensive. Resonance loading is low in cost but has large errors, and the test is not easy to control.
There are also methods for testing in harsh environments by creating a harsh environment, such as using a freezing test chamber to make freezing rain, so that the test is carried out in freezing rain to improve the strength and accuracy of the fatigue test, but the equipment required is still complicated and the price is not high. , therefore, how to improve the existing wind turbine blade fatigue loading method, and then provide more accurate and reliable detection data for the performance of wind turbine blades is worthy of our consideration
Method used
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[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0031] It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are conventional methods, and the reagents and materials, if not otherwise specified, can be obtained from commercial sources; in the description of the present invention, The orientation or positional relationship indicated by the term is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, use a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention.
[0032] Such as Figure 1~5 A...
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The invention discloses a wind power generation blade test device, which comprises a support which is used for fixing the blade root part of a blade; a clamp which is used for clamping the blade section, and the bottom of which is provided with a base; an excited vibration loading mechanism, which comprises a first motor, a double-shaft speed reducer, a transmission shaft, a mounting plate I, an electric cylinder, a mounting plate II, and a pair gravity blocks, wherein each gravity block comprises a magnet column and a gravity sleeve arranged outside the magnet column in a sleeving mode, a plurality of through holes being formed in each gravity sleeve in the axial direction of the gravity sleeve, and a plurality of gravity cylinders and a plurality of pairs of locking nuts; and an excitation auxiliary mechanism which comprises a pair of second motors arranged on the surface of the outer side of the clamp, hollow circular ring center trays arranged on the second motors and round balls arranged in the trays, wherein the trays are made of non-magnetic materials, and the round balls are electromagnets, wherein when the moving end of the electric cylinder extends to the limit, the gravity sleeves are not in contact with the trays. The device has the beneficial effect of improving the fatigue test strength and accuracy.
Description
technical field [0001] The invention relates to the technical field of wind power generation. More specifically, the present invention relates to a wind power generation blade testing device. Background technique [0002] The blade is a key component of wind power generation equipment and an important part that converts wind energy into mechanical energy. In the actual operation process, the blade has been damaged by rain, water, wind and frost in various external environments for a long time, such as the combination of dynamic loads such as wind shear force and turbulence. , may cause fatigue damage. Therefore, the fatigue test is an important test test in the design, shaping and production of wind power blades. Usually the design life of the blade is 20 years. The fatigue test is used to determine whether the wind power blades can survive the design life. Work safely during the period. However, the current fatigue tests are all simply using hydraulic loading or resonance...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G01M13/00G01M7/02
CPCG01M13/00G01M7/02G01M7/022Y02E10/72
Inventor 杨林
Owner 通标标准技术服务有限公司