A wind power bolt with a positioning spring

By combining a positioning spring with a rubber traction plate, the problem of bolts loosening due to vibration in wind power equipment is solved, achieving multi-dimensional anti-loosening and long-term protection, adapting to complex environments, and reducing operation and maintenance costs.

CN122106984APending Publication Date: 2026-05-29JIANGSU DITE HIGH STRENGTH FASTENERS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU DITE HIGH STRENGTH FASTENERS CO LTD
Filing Date
2026-04-02
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Bolts in wind power equipment can become loose due to vibration. Existing anti-loosening technologies cannot simultaneously cope with axial vibration and circumferential rotation, and are prone to damage in complex environments, increasing operation and maintenance costs.

Method used

The system employs a combination of positioning springs and rubber traction plates. The elastic reaction force and the insertion of the rubber traction plates restrict the loosening of the nuts. Combined with the sealing protection of the rubber cover, it achieves multi-dimensional anti-loosening and long-term protection.

Benefits of technology

It effectively prevents bolts from loosening, extends service life, reduces maintenance difficulty, adapts to harsh environments, and reduces the risk of fatigue in individual components.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122106984A_ABST
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Abstract

The application relates to the technical field of bolts, in particular to a wind power bolt with a positioning spring, which comprises a screw rod, the top end of the screw rod is fixed with a top plate, a nut is sleeved on the rod body of the screw rod through screwing, a grommet is sleeved on the rod body of the screw rod, the top surface of the grommet is fixed with a spring, and the spring is clamped between the grommet and the top plate; the beneficial effect is that, through the cooperation of the positioning spring and the rubber traction plate and in combination with the sealing protection structure, multi-dimensional anti-loosening and long-acting protection are realized; the spring generates elastic reaction force under pressure, continuously compresses the threaded connection and absorbs vibration energy; the rubber traction plate provides secondary axial pressure through deformation and rebound, and the insertion structure of the insertion block and the insertion groove limits the circumferential rotation of the grommet, so that the nut is fundamentally prevented from loosening.
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