Construction machine

US8943874B2 · kind B2 · utility

Assignee

• LIEBHERR-WERK EHINGEN GMBH · DE

Inventors

• Thomas Lerner · Oggelshausen, DE
• Roland Bohnacker · Blaubeuren, DE

Key dates

• Filing date: Mar 25, 2011
• Grant date: Feb 3, 2015
• Expiry date: Sep 3, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66C23/78
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

The present disclosure relates to a construction machine having an undercarriage; a superstructure rotatably supported relative to the undercarriage by a revolving roller connection; and a control system, wherein measuring devices are arranged in the revolving roller connection for the force measurement in the directions of pulling and compression, and the control system determines the force in the axis direction of the axis of rotation as well as the torque which is caused by the eccentricity of the force with respect to the axis of rotation from the detected measured values of the measuring devices. From this, improved monitoring of the operational safety and stability of such a construction machine is achieved.