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Gearbox rings

Gearbox rings

In doubly-fed or semi-direct-drive wind turbines, the gearbox is responsible for increasing the low-speed rotation of the main shaft (~10 RPM) to the high-speed rotation required by the generator (~1500 RPM). Key components such as the planetary gear ring, internal gear ring, and high-speed shaft flange are typically ring forgings, enduring tremendous transmission torque and impact loads.

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  • Performance Requirements
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Performance Requirements
Aspect Specification
Material Alloy structural steels (e.g., 20CrNiMo, 8620, 34CrNiMo6)
Primary Process Carburizing and Quenching
Surface Property High hardness (58-62 HRC) for wear resistance
Core Property Sufficient toughness (≥ 30J impact energy) to withstand impact
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