Luffing mechanism for crane, has hydraulic rocker cylinders carrying out rocking movement of crane cantilever arm, and pressure sensor monitoring function of hydraulic cylinder of rocker cylinders

摘要

The mechanism has hydraulic rocker cylinders (10, 20) carrying out a rocking movement of a crane cantilever arm. A pressure sensor (30) monitors a function of a hydraulic cylinder of the rocker cylinders. The sensor is arranged as per the rocker cylinders in such a manner that the pressure is measured on a piston surface of the rocker cylinders. The sensor is arranged in the mechanism such that the pressure in a region of a piston rod of the rocker cylinders is measured. A communication unit forwards sensor data to a local or central receiving and/or controlling unit. An independent claim is also included for a crane comprising a logic unit.