US 11,919,749 B2
Crane, and method for controlling such a crane
Michael Palberg, Riedlingen (DE); Jürgen Resch, Degernau (DE); and Oliver Fenker, Warthausen (DE)
Assigned to Liebherr-Components Biberach GmbH, Biberach an der Riß (DE)
Appl. No. 16/092,550
Filed by Liebherr-Components Biberach GmbH, Biberach an der Riß (DE)
PCT Filed Apr. 7, 2017, PCT No. PCT/EP2017/000450
§ 371(c)(1), (2) Date Oct. 10, 2018,
PCT Pub. No. WO2017/178106, PCT Pub. Date Oct. 19, 2017.
Claims priority of application No. 10 2016 004 350.4 (DE), filed on Apr. 11, 2016.
Prior Publication US 2019/0119078 A1, Apr. 25, 2019
Int. Cl. B66C 13/06 (2006.01); B66C 23/16 (2006.01)
CPC B66C 13/063 (2013.01) [B66C 23/16 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A tower crane subject to dynamic loads during operation comprising:
a tower that supports a boom on which a trolley is displaceable, wherein one or more structural elements of the tower crane experience elastic deformations and movements in response to being subject to the dynamic loads;
a load suspension means attached to a hoist rope running from the trolley, wherein at least one of the load suspension means or the hoist rope experience oscillation movements resultant from the dynamic loads;
drive devices for moving one or more crane elements used for traveling the load suspension means;
a control apparatus for controlling the drive devices such that the load suspension means travels along a travel path; and
an oscillation damping device for damping the oscillation movements of the load suspension means and/or of the hoist rope as a result of the dynamic loads, the oscillation damping device comprising:
determination means comprising a sensor system including at least one deformation sensor, the determination means for determining the elastic deformations and movements of the one or more structural elements of the tower crane under the dynamic loads during operation of the tower crane; and
a control module for automatically influencing the movement of one or more of the crane elements via control of the drive devices in response to the determined elastic deformations and movements.