Main Shaft Fixture
Patent No. EP4198301 (titled "Main Shaft Fixture") was filed by Liftra APS on Oct 6, 2015. The application was issued on Jan 29, 2025.
Patent Summary
A main shaft fixture for wind turbines that enables secure fixation of the main shaft during maintenance without requiring the turbine to be halted. The fixture comprises multiple radial pressure mandrels with tap shoes that can be displaced between a passive and active position to engage with the main shaft. The fixture can be mounted on stable structural components in the nacelle, including the bottom frame, and provides facilities for anchoring self-hoisting cranes. The fixture also features a slide lining that allows for controlled rotation of the main shaft during maintenance, preventing damage to the shaft and fixture.
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Date
Description
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EP4198301
- Application Number
- EP22211827A
- Filing Date
- Oct 6, 2015
- Status
- Granted And Under Opposition
- Dec 26, 2024
- Publication Date
- Jan 29, 2025
- External Links
- Slate, Register , Google Patents