Zero setting tool for wind power blade

Abstract

The invention provides a zero setting tool for a wind power blade. The zero setting tool comprises a supporting rod, limiting devices and zero setting pointers. The limiting devices are symmetricallyarranged at the two ends of the supporting rod, and the inner side faces of the limiting devices can be matched with the outer side faces of two adjacent bolts, for fixing the wind power blade, on a hub respectively. The zero setting pointers comprise the first zero setting pointer for comparing hub zero marking lines and the second zero setting pointer for comparing wind power blade zero markinglines. The first zero setting pointer and the limiting devices are located on the same side of the supporting rod, and the second zero setting pointer is arranged on the other side of the supporting rod. The projection of the part, coinciding with the hub zero marking lines, of the first zero setting pointer and the projection of the part, coinciding with the wind power blade zero marking lines, of the second zero setting pointer on a horizontal plane are located on the same straight line. The zero setting tool is simple in structure and easy to operate, the zero setting precision and efficiency of the wind power blade can be improved to a great degree, and therefore the generating capacity of a draught fan and the running reliability of a wind turbine generator are effectively improved.

Description

technical field [0001] The invention relates to the technical field of wind power generator maintenance, in particular to a zero alignment tool for wind power blades. Background technique [0002] Wind turbines need to perform blade zero calibration every year. The accuracy of blade zero directly affects the utilization coefficient of wind energy and the availability of the unit. If the zero position deviation of a single blade is large, it will cause the vibration of the unit, which will cause a chain reaction, which is not good for the safe and stable operation of the unit. Therefore, this work requires high precision. [0003] In the existing technology center, when the fan generator set is used for zero calibration of the blade, it is generally compared with a string or a cable tie. However, at present, the zero mark line of the blade of most wind power generator sets in the industry is not at the same level as the zero mark line of the hub casting. On the plane, such a...

AI Technical Summary

Problems solved by technology

If the zero position deviation of a single blade is large, it will cause the vibration of the unit, which will cause a chain reaction, which is not good for the safe and stable operation of the unit. Therefore, this work requires high precision.

[0003] In the existing technology center, when the fan generator set is used for zero calibration of the blade, it is generally compared with a string or a cable tie. However, at present, the zero mark line of the blade of most wind power generator sets in the industry is not at the same level as the zero mark line of the hub casting. On the plane, such a comparison with the zero reticle line will often cause deviations with the naked eye, resulting in deviations in the zero position of the blades, and the cable ties are soft and easy to move. The whole process of zeroing the blades is very irregular, with large errors, and the temperature in winter is low. , the cable tie is fragile and easy to break, which affects the orderly progress of the zeroing work

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