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US 8,939,298 B2Granted
Ballast carriage for a crawler crane
AssigneeLiebherr-Werk Ehingen GmbH
InventorHans-Dieter Willim
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a crane with a travelling undercarriage, an uppercarriage rotatably mounted on the same with a luffing boom and derrick boom arranged on the same, and a ballast carriage connectable with the uppercarriage via a coupling element, wherein the ballast carriage is a standardized heavy-duty transport device with separate drive and separate drive controller, and wherein this drive controller can be influenced as a result of the movement of the crane.
Claims15
A crane comprising:
- a travelling undercarriage;
- an uppercarriage rotatably mounted on the undercarriage with a luffing boom and a derrick boom arranged on the uppercarriage;
- a ballast carriage connectable with the uppercarriage via a rigid guide frame with an articulation point, the rigid guide frame movably mounted with respect to the articulation point in an articulation region;
- and
- a ballast pallet hanging via at least one pendulum from the articulation point, wherein the rigid guide frame picks up ballast and puts the ballast down on the ballast carriage,
- wherein the ballast carriage is a transport device with its own drive and controller, the drive and controller of the ballast carriage separate from a drive and a controller of the travelling undercarriage,
- wherein the controller of the ballast carriage is influenced as a result of movement of the crane,
- wherein the ballast carriage is movable into a desired position by the drive of the ballast carriage, and
- wherein detected longitudinal movement of the rigid guide frame relative to a neutral position of the rigid guide frame is converted into an actuation signal for the controller of the ballast carriage.
6 more elements
A crane comprising:
- a travelling undercarriage;
- an uppercarriage rotatably mounted on the undercarriage with a luffing boom and a derrick boom arranged on the uppercarriage;
- a ballast carriage connectable with the uppercarriage via a rigid guide frame with an articulation point, the rigid guide frame movably mounted with respect to the articulation point in an articulation region;
- and
- a ballast pallet hanging via at least one pendulum from the articulation point, wherein the rigid guide frame picks up ballast and puts the ballast down on the ballast carriage,
- wherein the ballast carriage is a transport device with its own drive and controller, the drive and controller of the ballast carriage separate from a drive and a controller of the travelling undercarriage,
- wherein the controller of the ballast carriage is influenced as a result of movement of the crane,
- wherein the ballast carriage is movable into a desired position by the drive of the ballast carriage,
- wherein detected longitudinal movement of the rigid guide frame relative to a neutral position of the rigid guide frame is converted into an actuation signal for the controller of the ballast carriage, and
- wherein pendular movement of the at least one pendulum is detected via at least one sensor, such that based on variables detected by the at least one sensor, further actuation signals are generated for the controller of the ballast carriage.
7 more elements
A crane comprising:
- a travelling undercarriage;
- an uppercarriage rotatably mounted on the undercarriage with a luffing boom and a derrick boom arranged on the uppercarriage;
- a ballast carriage connectable with the uppercarriage via a rigid guide frame with an articulation point;
- and
- a ballast pallet hanging via at least one pendulum from the articulation point, wherein the rigid guide frame picks up ballast and puts the ballast down on the ballast carriage,
- wherein the ballast carriage is a transport device with its own drive and controller, the drive and controller of the ballast carriage separate from a drive and controller of the travelling undercarriage,
- wherein the controller of the ballast carriage is influenced as a result of movement of the crane,
- wherein the ballast carriage is movable into a desired position by the drive of the ballast carriage, and
- wherein pendular movement of the at least one pendulum is detected via at least one angle sensor, such that based on variables detected by the at least one angle sensor, further actuation signals are generated for the controller of the ballast carriage.
6 more elements
Dependencies are inferred from the claim text.