Tensioning device for a wind turbine blade spar

By using the tensioning device of the wind turbine blade main beam, a combination of conforming mechanism and adjustment mechanism is used to achieve rigid support for the pultruded main beam, solving the stacking and misalignment problems caused by the binding method and ensuring the reliability of the blade.

CN119503203BActive Publication Date: 2026-06-23SINOMA TECH BAICHENG WIND POWER BLADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SINOMA TECH BAICHENG WIND POWER BLADE CO LTD
Filing Date
2024-11-12
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In the existing technology, the method of binding the pultruded main beam can easily lead to the stacking and misalignment of pultruded plates during the lifting process, causing damage to the main beam and affecting the reliability of the formed blade.

Method used

The tensioning device for the main beam of the wind turbine blade includes a conforming mechanism, a support component, and an adjustment mechanism. The rigid support component provides rigid support for the pultruded main beam, and the adjustment mechanism adjusts the volume of the fixed cavity to prevent the pultruded plates from stacking or misaligning.

Benefits of technology

During lifting and transportation, it effectively avoids stacking and misalignment between pultruded plates, protects the integrity of the pultruded main beam, and improves the reliability of the formed blades.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119503203B_ABST
    Figure CN119503203B_ABST
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Abstract

The application relates to the technical field of wind power equipment, in particular to a tensioning device of a wind power blade girder. The tensioning device comprises a shape-following mechanism, a supporting assembly and an adjusting mechanism. The shape-following mechanism has a predetermined length and opposite first and second end portions along the length direction of the shape-following mechanism; the supporting assembly and the shape-following mechanism enclose a fixing cavity for accommodating a pultrusion girder, and the supporting assembly comprises a rigid supporting piece and a first connecting piece; in the length direction, one end of the rigid supporting piece is rotationally connected to the first end portion through the first connecting piece, and the other end is detachably arranged with the second end portion to open or close the fixing cavity; the adjusting mechanism is connected with at least one of the shape-following mechanism and the rigid supporting piece and drives the rigid supporting piece to move relative to the shape-following mechanism to adjust the volume of the fixing cavity. The tensioning device can avoid the stacking and mispositioning of pultrusion plates, so that the pultrusion girder is prevented from being damaged.
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