摘要:
The present invention relates to a material handling and/or construction machine, in particular lifting gear such as a crane, comprising a plurality of electric drives for driving work assemblies and/or structural components of the material handling and/or construction machine, a control apparatus for controlling the drives, and a power supply device for supplying electric power to the electric drives, wherein the power supply device has a grid connection for connection to a power grid and drawing of the electric power from the power grid, wherein a measuring device for measuring the total electric power consumption of the material handling and/or construction machine from the power grid is provided at the grid connection at the machine-end grid connection.
摘要:
The invention relates to a method of operating a crane having a luffable crane boom and having a trolley travelable at the crane boom, wherein the crane can be operated in a luffing mode, on the one hand, and in a trolley mode, on the other hand. In accordance with the invention, a switch is made between a luffing mode and a trolley mode by varying the hoist rope reeving. The invention further relates to such a crane for carrying out the method.
摘要:
The present invention relates to a crane, for example in the form of a fast-erecting crane comprising a telescopic and/or luffing tower, having a crane controller for controlling crane movements by means of drive devices, wherein the crane controller has a monitoring device for monitoring stability and limiting crane movements if a load limit is reached. According to the invention, the monitoring device has a wind resistance detection unit for detecting at least one variable wind resistance parameter which influences the wind resistance of the crane, and is designed to change the load limit depending on the detected wind resistance parameter and/or to consider different load limits depending on said wind resistance parameter.
摘要:
The invention relates to a mobile construction crane comprising a superstructure and an undercarriage, wherein one or more electrical consumers are provided in or at the superstructure, wherein a supply of the one or more electrical consumers with electrical energy takes place by at least one current generator installed in the lower undercarriage.
摘要:
The invention relates to a tower crane having a tower which carries a jib, from which a hoisting cable runs off, wherein a guying system is provided and runs, at least in part, along the tower and is spread out, by means of guy supports, in a direction transverse to the longitudinal center plane of the crane, this plane running through the tower and the jib, wherein at least one pair of guy supports which are spread out in a V-shaped manner are articulated on the tower, between the lower end of the latter and the jib.
摘要:
The present disclosure concerns a crane, in particular a tower crane, with a jib from which a load hook can be raised and lowered via a hoisting cable, and with an electric power supply to the load hook and/or to a trolley that may be movable along the crane jib. According to the disclosure, the electric power supply to the load hook and/or to the trolley is at least partly conducted by a running cable which transmits tractive forces for the crane operation.