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US 10,246,311 B2Granted
Winch
AssigneeLiebherr-Components Biberach GmbH
InventorsJohannes Bulling, Erich Harsch
Life of this patent
Estimating the term…
Abstract
The present invention relates to a winch, in particular a luffing winch, with a winch drum, at least one main drive driving the transmission input shaft, and at least one emergency drive driving the transmission input shaft in case of emergency, wherein at least one emergency drive can be coupled to the driven wheel of the transmission input shaft as required via at least one intermediate gear. The present invention furthermore is directed to a construction machine or a lifting device with at least one such winch.
Claims19
A winch, comprising:
- a winch drum arranged on a drum shaft;
- at least one main drive driving the drum shaft, the main drive arranged coaxially with the winch drum on the drum shaft;
- and
- at least one emergency drive driving the drum shaft in case of emergency, the emergency drive comprising a drive wheel,
- wherein at least one emergency drive is coupleable to a driven wheel of the drum shaft as required via at least one intermediate gear, the intermediate gear in constant engagement with the emergency drive, via the drive wheel, independent of a current position of the intermediate gear and shiftably mounted for coupling in and out in a direction of its shaft axis, the driven wheel arranged on the drum shaft between the winch drum and the main drive.
2 more elements
A winch, comprising:
- a winch drum arranged on a drum shaft;
- at least one main drive driving the drum shaft, the main drive arranged coaxially with the winch drum on the drum shaft;
- and
- at least one emergency drive driving the drum shaft in case of emergency, wherein at least one emergency drive is coupleable to a driven wheel of the drum shaft via at least one intermediate gear, the intermediate gear shiftably mounted for coupling in and out in a direction of its shaft axis, the driven wheel arranged on the drum shaft between the winch drum and the main drive;
- wherein, when the emergency drive drives the drum shaft, the intermediate gear is shifted along its shaft axis via actuation of a lever mechanism until it engages in the driven wheel, and
- wherein, when the main drive drives the drum shaft and the emergency drive is shut off, the intermediate gear is not in engagement with the driven wheel.
3 more elements
Dependencies are inferred from the claim text.