Hoisting gear
AssigneeWirth Maschinen-und Bohrgeratefabrik GmbH
InventorsPeter Heinrichs, Albrecht Heinrichs
Life of this patent
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Abstract
The invention relates to a hoisting gear, comprising a rotatably mounted drum (5), for the winding of a hoisting means (4), which may be driven by at least one rotating drive mechanism (19), comprising a rotating drive motor (21), driving the drum (5), by means of at least one gearbox (25). The at least one rotating drive mechanism (19) is arranged next to the drum (5), in relation to the rotation axis (S) of the drum (5), in such a way that the drum (5) and the rotating drive mechanism (19) overlap in a projection perpendicular to the rotation axis (S) of the drum (5).
Claims12
Lifting gear for raising and lowering a load, in particular drilling equipment,
- with flexible tension means (4) attached to the load,
- with a drum (5) mounted to rotate about an axis (S) for winding up the tension means (4) and
- with at least one first rotary driving device (19), which incorporates at least one rotary driving motor (21) acting on the drum (5) through a change-speed gearbox (25), by which the drum (5) is driven in rotation at will in the direction for winding-up or unwinding the tension element (4),
- characterised in that
- the first rotary driving device (19) is mounted alongside the drum (5) in relation to the axis of rotation (S) of the drum (5) in such a way that the drum (5) and the rotary driving device (19) at least partially overlap in a projection perpendicular to the axis of rotation (S) of the drum (5).
Dependencies are inferred from the claim text.