A crane operation support device that supports a driving operation of a crane that includes a boom, configured to be capable of switching a driving operation mode between a first operation mode in which each operation of lifting and lowering of a hook suspended from a tip of the boom and turning and derricking of the boom is independently operated, and a second operation mode in which a movement of the hook is operated by a combined operation of the turning of the boom and at least one of the lifting and lowering and the derricking of the hook by a single operation.

A crane operation support device that supports a driving operation of a crane that includes a boom, configured to be capable of switching a driving operation mode between a first operation mode in which each operation of lifting and lowering of a hook suspended from a tip of the boom and turning and derricking of the boom is independently operated, and a second operation mode in which a movement of the hook is operated by a combined operation of the turning of the boom and at least one of the lifting and lowering and the derricking of the hook by a single operation.

Various hoisting systems with anti-two-block sensing devices are provided. In one embodiment, an apparatus includes a crane having a hoisting line and an anti-two-block sensing device installed about the hoisting line. The anti-two-block sensing device includes an upper chandelier, a lower trigger assembly suspended from the upper chandelier, and a detector positioned to detect movement of the lower trigger assembly with respect to the upper chandelier. The lower trigger assembly can include two plates each having a hoisting line aperture and a slot that allows transverse installation of the plate about the hoisting line. Further, the two plates can be positioned such that their slots are offset from one another and the plates cooperate to fully surround the hoisting line. Additional systems, devices, and methods are also disclosed.

Various hoisting systems with anti-two-block sensing devices are provided. In one embodiment, an apparatus includes a crane having a hoisting line and an anti-two-block sensing device installed about the hoisting line. The anti-two-block sensing device includes an upper chandelier, a lower trigger assembly suspended from the upper chandelier, and a detector positioned to detect movement of the lower trigger assembly with respect to the upper chandelier. The lower trigger assembly can include two plates each having a hoisting line aperture and a slot that allows transverse installation of the plate about the hoisting line. Further, the two plates can be positioned such that their slots are offset from one another and the plates cooperate to fully surround the hoisting line. Additional systems, devices, and methods are also disclosed.

Various hoisting systems with anti-two-block sensing devices are provided. In one embodiment, an apparatus includes a hoisting system having a hoisting line, a sleeve positioned on the hoisting line, and an anti-two-block sensing device installed about the hoisting line so as to allow the hoisting line to move through the anti-two-block sensing device. The anti-two-block sensing device includes a detector positioned to detect a sleeve component when the sleeve is present within the anti-two-block sensing device. Additional systems, devices, and methods are also disclosed.

Various hoisting systems with anti-two-block sensing devices are provided. In one embodiment, an apparatus includes a hoisting system having a hoisting line, a sleeve positioned on the hoisting line, and an anti-two-block sensing device installed about the hoisting line so as to allow the hoisting line to move through the anti-two-block sensing device. The anti-two-block sensing device includes a detector positioned to detect a sleeve component when the sleeve is present within the anti-two-block sensing device. Additional systems, devices, and methods are also disclosed.

An induction sensor assembly for a securing and locking unit of a telescoping jib having at least one signal transmitter configured for generating an electromagnetic stray field oriented towards its active switching surface, and at least one switching element provided for contactless cooperation with the signal transmitter. The signal transmitter and switching element are displaceable relative to each other in relation to an adjusting direction extending in parallel with a main plane. To provide a simple and cost-effective installation of the induction sensor assembly despite having high detection security, the active switching surface of the signal transmitter and the main plane are inclined with respect to each other. As such, the electromagnetic stray field of the signal transmitter is also advantageously inclined whereby a possible displacement between the signal transmitter and switching element cannot exert an influence on the precision of the position detection in relation to the adjusting direction.

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.

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.

A hoist lifting system having planning and monitoring of components. The system monitors one or more components and may have a processing structure and memory storing instructions to configure the processing structure to: receive hoist machine data; determine a rotation speed of a bearing, a travel speed of a rope, a load on the bearing, a friction in the at least one bearing based on the hoist machine data; and store the rotation speed, the travel speed, the load, and the friction in a maintenance database in memory. The hoist lifting system may have the processing structure determine a wear of one or more components.