Patent · US Active

Control system for a boom crane

US7850024B2 · kind B2 · utility

3Cited by

4References

27Claims

0Family size

Assignee

LIEBHERR-WERK NENZING GMBH · AT

Inventors

Klaus Schneider · Hergatz, DE
Oliver Sawodny · Stuttgart, DE
Joerg Neupert · Stuttgart, DE

Key dates

Filing date	Oct 16, 2007
Grant date	Dec 14, 2010
Priority date	—
Expiry date	Apr 10, 2028

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB66C13/063
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A control system for a boom crane, having a tower and a boom pivotally attached to the tower, a first actuator for creating a luffing movement of the boom, a second actuator for rotating the tower, first means for determining the position rA and/or velocity {dot over (r)}A of the boom head by measurement, second means for determining the rotational angle φD and/or the rotational velocity {dot over (φ)}D of the tower by measurement, the control system controlling the first actuator and the second actuator. In the control system of the present invention the acceleration of the load in the radial direction due to a rotation of the tower is compensated by a luffing movement of the boom in dependence on the rotational velocity {dot over (φ)}D of the tower determined by the second means. The present invention further comprises a boom crane having such a system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.