Crane and cable drum unit for same
AssigneeLiebherr-Werk Biberach GmbH
InventorsMartin Assfalg, Michael Altmann, Michael Eggert
Life of this patent
Estimating the term…
Abstract
A crane (2), more particularly a mobile fast-erecting crane, having at least one supply connection to which a supply line (16), more particularly a power cable, can be connected, wherein the supply line can be wound on a cable drum (15), which can be mounted on a drum mount (10) on the crane, with the cable drum being mounted to rotate on a drum support frame (18), which has running gear (18) for moving the cable drum over the ground and which has releasable mounting means, shaped to match the drum mount of the crane, for separably mounting the drum support frame on the drum mount of the crane. The invention further relates to a cable drum unit for winding a supply line (16) of a crane (2).
Claims19
A crane having at least one supply connection to which a supply line is connectable, wherein the supply line is windable onto a cable drum that is fastenable to a drum mount of the crane, wherein the cable drum is rotatably supported at a drum bearing frame that has a chassis for moving the cable drum on the ground, and wherein the drum bearing frame is releasably attachable to the drum mount with a shape-matched connection,
- wherein the drum mount has a reception compartment that has a compartment opening through which the cable drum is pushable into the reception compartment together with the drum bearing frame and the chassis,
- wherein a cable drum unit is receivable by the reception compartment when the cable drum unit is in a horizontal stowing orientation that is tilted by approximately 90° with respect to a travel orientation standing on the ground, wherein the cable drum unit comprises the supply line, the cable drum, and the drum bearing frame, and wherein the reception compartment has a height that is smaller than a longitudinal extent of the reception compartment or less than 75° of the longitudinal extent of the reception compartment.
A crane comprising:
- a reception compartment;
- and
- at least one supply connection to which a supply line is connectable,
- wherein the supply line is windable onto a cable drum that is fastenable to a drum mount of the crane, wherein the cable drum is rotatably supported at a drum bearing frame that has a chassis for moving the cable drum on the ground, and wherein the drum bearing frame is releasably attachable to the drum mount with a shape-matched connection,
- wherein the drum bearing frame has a support section comprising two support arms that are spaced apart from one another, the support section forming a ground contact surface or mutually spaced apart ground contact points together with the chassis and extending on a side of the cable drum together with the chassis, the support section and an axis of rotation of the cable drum forming a triangle when viewing the cable drum in the direction of the axis of rotation, and wherein the axis of rotation extends above the chassis and the support section in a state supported on the ground between the chassis and the support section,
- wherein the reception compartment has a height, and wherein the support section and a wheel or wheels of the chassis define a spread that is larger than the height of the reception compartment and that fits with an exact fit between a compartment bottom and a top of the reception compartment in a position of the spread tilted at an acute angle with respect to the vertical.
Dependencies are inferred from the claim text.