Actuating drive for adjusting a large rolling bearing
AssigneeLiebherr-Components Biberach GmbH
InventorsMartin Dahl, Stephan Kreiner, Markus Schuster, Thomas Schulze, Klaus Graner, Andreas Palmer
Life of this patent
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Abstract
An adjusting drive for adjusting the rotational position of a large rolling bearing that comprises two bearing rings that can be rotated relative to each other, having an actuator for rotating the two bearing rings relative to each other. According to the invention, the actuating drive has a ring channel cylinder, which is formed in or on one of the bearing rings of the large rolling bearing, and at least one piston, which is received in the ring channel cylinder in a movable manner and is drivingly connected to the other bearing ring of the two bearing rings.
Claims16
An actuating drive for adjusting a rotational position of a large roller bearing having at least two bearing rings configured to be rotated with respect to one another,
- an annular groove cylinder in or at a first bearing ring of the at least two bearing rings, wherein the annular groove cylinder is interrupted at least once at a periphery and is provided at both sides of the interruption with a feed for hydraulic fluid, and
- at least one piston displaceably received in the annular groove cylinder, wherein the at least one piston is drive-wise connected to a second bearing ring of the at least two bearing rings via a driving disk running around at least in a sealing gap of the annular groove cylinder,
- wherein a connection of the driving disk to the second bearing ring is free of play-in a peripheral direction or is subject to play in axial and radial directions.
Dependencies are inferred from the claim text.