Brake of a large wind turbine
AssigneeAktiebolaget Skf
InventorsWolfgang Glaentz, Henning Kern, Hans-Juergen Liesegang
Life of this patent
Estimating the term…
Abstract
A system includes a wind turbine having a fixed part and a rotational part and a brake having a brake disk mounted to the rotational part for rotation with the rotational part. At least one brake block is fixed relative to the fixed part and has a friction surface facing the brake disk. The brake block is shiftable between a first position with the friction surface spaced from the brake disk and a second position with the friction surface in contact with and pressed against the brake disk, and the friction surface and/or the brake disk are configured such that pressing the at least one brake block against the brake disk creates a micro-interference fit between the at least one brake block and the brake disk.
Claims15
A system comprising:
- a wind turbine having a fixed part and a rotational part, the rotational part including a main shaft and a rotor blade hub mounted on the main shaft,
- a brake disk fixedly mounted to the main shaft for rotation with the rotational part,
- at least one brake block movably connected with the fixed part and having a friction surface facing the brake disk, the at least one brake block being shiftable between a first position with the friction surface spaced from the brake disk and a second position with the friction surface in contact with and pressed against the brake disk only when there is a complete or approaching stoppage of the rotational part,
- the friction surface and/or the brake disk being configured such that pressing the at least one brake block against the brake disk creates a micro-interference fit between the at least one brake block and the brake disk in which particles on the brake block friction surface press into the brake disk so as to prevent relative rotation between the at least one brake block and the brake disk to thereby secure the main shaft against rotational or pivotal movements.
A system comprising:
- a wind turbine having a fixed part and a rotational part, the rotational part including a main shaft and a rotor blade hub mounted on the main shaft,
- a brake disk fixedly mounted on the main shaft for rotation with the main shaft,
- at least one brake block movably connected with the fixed part and having a friction surface facing the brake disk, the at least one brake block being shiftable between a first position with the friction surface spaced from the brake disk and a second position with the friction surface in contact with and pressed against the brake disk only when there is a complete or approaching stoppage of the rotational part,
- the friction surface and/or the brake disk being configured such that pressing the at least one brake block against the brake disk creates a micro-interference fit between the at least one brake block and the brake disk in which particles of the brake block friction surface press into the brake disk so as to prevent relative rotation between the at least one brake block and the brake disk to thereby secure the main shaft against rotational or pivotal movements.
Dependencies are inferred from the claim text.