Abstract: The present invention relates to an apparatus for determining the actual state and/or the remaining service life of structural components, for example large-diameter rolling bearings, of a work machine, in particular a construction machine, a material-handling machine and/or a conveyor machine, comprising a sensor system for acquiring state information relating to the structural component, and an analytical device for analyzing the acquired state information and determining the actual state and/or the remaining service life on the basis of a comparison with predetermined damage characteristics, wherein an active database device is provided for storing the damage characteristics, to which database device a determination device for determining the damage characteristics from design data of the structural component, and an adjustment device for adjusting the predetermined damage characteristics on the basis of the state and/or the remaining service life information determined by the evaluation device are connect

Abstract: The present invention relates to a drive and/or adjustment device for driving and/or adjusting a rotatable assembly, for example a large rolling bearing ring of a wind turbine or a slewing gear of a construction machine or of a hoist, comprising an output element for rotationally driving and/or adjusting the rotatable assembly, a transmission which is connected upstream of the output element and has at least one torque-transmitting gear, and an overload safety mechanism for the rotatable assembly. The overload safety mechanism is provided on the gear, which is divided and has two gear parts that are torque-transmittingly interconnected via spur toothing and held axially in spur toothing engagement by an axial securing means which yields at a predetermined axial loading between the gear parts.

Abstract: The present invention relates in general to working machines with working units which are subject to fluctuating loads or have a fluctuating power consumption. The invention relates in particular to a drive train assembly for driving such a working unit, the drive train assembly having a flywheel accumulator for mitigating the load impacts or load fluctuations. According to the invention, a starting aid for easier starting up of the flywheel accumulator into its desired operating speed range is provided, the starting aid having a planetary transmission, which is connected in terms of drive to the flywheel accumulator, and a control actuator for braking and/or accelerating a planetary transmission element in order to adjust the step-up/step-down ratio of the planetary transmission when starting up the flywheel accumulator.

Abstract: The invention relates to a seal for a large roller bearing for sealing a joint between two adjacent ring segments or ring parts of the roller bearing, wherein at least two mutually spaced apart sealing limbs of a rubber elastic and/or yielding sealing material for sealing insertion into grooves that are formed at both sides of the joint in ring segments or ring parts that are adjacent to one another and a connection section connecting the sealing limbs and composed of a rubber elastic and/or yielding sealing material to span said joint.

Abstract: The present invention relates to a crane, in particular to a revolving tower crane, having a load suspension means attached to a hoist rope, drive devices for moving a plurality of crane elements and for traveling the load suspension means, a control apparatus for controlling the drive devices such that the load suspension means travels along a travel path, and an oscillation damping device for damping oscillation movements of the load suspension means, wherein said oscillation damping device has a control module for influencing the control of the drive devices in dependence on oscillation-relevant criteria. It is proposed not only to take account of the actual oscillation movement of the rope per se in the oscillation damping measures, but also the dynamics of the steel construction of the crane and its drivetrains.

Abstract: The present invention relates to an energy storage device, comprising a switchgear cabinet housing in which a plurality of receiving spaces are provided, in which receiving spaces at least one control device and a variable number of electrical storage blocks are accommodated in an exchangeable manner, wherein the storage blocks can be selectively interconnected in series or in parallel and are connected to power connections by means of a current controller. Therefore, it is initially proposed to form the control device which is installed in the switchgear cabinet housing and the associated power electronics components themselves in a reconfigurable or variable manner in order to allow the controller and power electronics to be matched to another mode of operation or another application, without having to exchange the control and power electronics module and provide corresponding wiring for this purpose.

Abstract: The invention relates to a bus-capable device having an input interface and an output interface for connecting to a serial bus, particularly a CAN bus, wherein the input interface and the output interface each have at least one signal line connection, and further having a terminating resistor for terminating the bus and a switch apparatus for switching the terminating resistor active as a function of the connection status of the input and output interfaces, wherein the input interface and the output interface each having a supply voltage connection for providing a supply voltage to the output and/or input interfaces of a respective next bus-capable device and a feedback connection for receiving the supply voltage from an output and/or input interface of a respective next bus-capable device, wherein the switch apparatus has an evaluation circuit for determining the presence of the supply voltage at the feedback connections of the input and output interfaces and an activation circuit for switching the terminati

Abstract: The cooling and/or heating of drive and/or transmission units of construction machines and similar equipment is disclosed. A temperature control device can cool and/or heat such drive and/or transmission units. The temperature control device can include a heat exchanger module having a liquid jacket through which flow is possible. The heat exchanger module can form a ring body for fitting in a sandwich-like manner between two transmission and/or drive sections. The ring body can have a central through-cutout for a drive element to pass through and can have on each opposite end face a connection flange for precision-fit end-face connection to the two transmission and/or drive sections.

Abstract: The invention relates to a large rolling bearing, more particularly an open-center large rolling bearing, comprising two concentric running rings, between which a plurality of rolling elements is provided in a bearing gap, which rolling elements roll on at least two raceways. More particularly, the bearing gap between the running rings and/or between at least one running ring and the rolling elements is at least partially filled with a solid lubricant, which comprises a polymer matrix and a lubricant embedded therein.

Abstract: A tower crane with a load lifting means mounted on a hoisting cable, driving devices for moving several crane elements and traversing the load lifting means, and a control device for controlling the driving devices such that the load lifting means moves along a traversing path between at least two target points. The control device has a traversing path determining module for determining a desired traversing path between the at least two target points and an automatic traversing control module for automatically traversing the load lifting means along the determined traversing path.

Abstract: An adjusting drive for adjusting the rotational position of a large rolling bearing that comprises two bearing rings that can be rotated relative to each other, having an actuator for rotating the two bearing rings relative to each other. According to the invention, the actuating drive has a ring channel cylinder, which is formed in or on one of the bearing rings of the large rolling bearing, and at least one piston, which is received in the ring channel cylinder in a movable manner and is drivingly connected to the other bearing ring of the two bearing rings.

Abstract: The present invention relates to an energy storage device, comprising power terminals for connecting to a voltage circuit of power electronics of a drive system, which drive system can be controlled by an external system controller as well as at least one electrical storage block; at least one power converter for connecting the voltage circuit of the power electronics of the drive system to an internal voltage circuit of the storage block; and a control device for controlling the at least one power converter. Said control device has a controller board having output and/or feed-in control means for controlling the power converter for the outputting of current from/feeding of current into the storage block, and/or voltage closed-loop and/or open-loop control means for the closed-loop and/or open-loop control of the output voltage of the energy storage device. According to the invention, said control device has an adaptation board, which is connected to the controller board.

Abstract: The invention relates to a method for determining an error voltage of a current converter to which a load, in particular in the form of a three-phase machine such as an asynchronous machine, is connected, is determined and if necessary compensated, wherein an output voltage on the current converter is increased stage-by-stage or step-by-step and which is measured here as a current adjusting a step response. The invention further relates to a three-phase machine, for example in the form of an asynchronous machine having power electronics comprising a current converter and in the form of a compensation device for compensating the error voltage of the current converter. The invention further relates to a method for operating and/or controlling such a three-phase machine, in which the error voltage of the current converter is determined and compensated.

Abstract: The present invention generally relates to the detection of the discard state of high-strength fiber ropes. The invention relates to a device for detecting the discard state of high-strength fiber ropes for various operating conditions, wherein a rope core of the fiber rope is sheathed with a rope sheath which is intended to wear more quickly than the rope core, comprising an optical detection device for detecting the rope surface and/or a load spectrum counter for detecting the load cycles to which the fiber rope is subjected, and on the other hand to a lifting gear such as a crane comprising such a device. According to the invention, there is provided a detection device for detecting the light absorption coefficient and/or the degree of reflection of the rope sheath and an adaptation device for adapting the algorithm, by means of which the discard state is determined, in dependence on the detected light absorption coefficient and/or the detected degree of reflection.

Abstract: The present invention relates to a drive for reaching a desired position of a component such as of a rotor blade, a crane tower, a superstructure and the like, having at least two drive elements that are in toothed engagement with one another and of which at least one is drivable from a drive source and the other is connectable to the component, and having a lubricating device for lubricating the drive elements, wherein at least one lubricant passage for the supply of lubricant to a meshing tooth pair is led through one of the drive elements. It is proposed to effect the supply of the lubricant by a distributor that is connected upstream of the lubricant passage integrated in the drive element and to control the connection between a supply passage of the distributor and the at least one lubricant passage integrated in the drive element by a relative movement between the drive element and the distributor.

Abstract: A drilling apparatus in the form of a Kelly drilling rig including a drilling tool holder for holding a drill rod, in particular a Kelly bar, which can be rotatably driven by a rotary drive via a gearbox, wherein the gearbox includes a gearbox housing with multiple gearbox elements rotatably mounted therein. At least one plastically deformable shock absorber element for absorbing shocks is provided on at least one of the gearbox elements in the gearbox housing.

Abstract: The invention relates to a drive unit for a construction and/or material handling machine or lifting equipment such as a crane, comprising a torque density of more than 20 Nm/l at a predetermined output speed, wherein the drive unit comprises a drive motor and a connected transmission, wherein a fast-running electric motor is provided as the drive motor, wherein the motor speed thereof is at least two times said output speed of the drive unit and is reduced by the transmission by a factor of at least 2 to the output speed of the drive unit.

Abstract: A crane, a construction machine or an industrial truck, with a control station including at least one input means for inputting control commands, a graphical simulation module for calculating a virtual representation of the machine surroundings and/or machine components visible from the control station, such as a boom or a load hook, and a display device for displaying the calculated virtual representation, wherein a movement simulation module is provided for determining movements and/or deformations of the machine components according to the inputted control commands, depending on which the graphical simulation module calculates the virtual representation.

Abstract: The invention relates to a method for winding a cable winch, in which method a plurality of cable winding layers is wound one over the other, a plurality of cables being wound, in multiple strands, onto the same winding region of the cable winch such that the cables are adjacent to each other in the same cable winding layer.

Abstract: A construction machine, in particular in the form of a crane such as a revolving tower crane, having a control apparatus for controlling at least one piece of work equipment of the construction machine using a structure data model that includes digital information on a structure to be erected and/or to be worked. A method of controlling such a construction machine with the aid of digital data from such a structure data model. The construction machine has a data exchange module connectable to the master construction site computer for the exchange of digital data with a master construction site computer, with the data exchange module having reading and/or writing means for reading and/or writing access to the master construction site computer. The construction machine carries out at least individual work steps such as the traveling of a construction element in automated manner using digital data from the master construction site computer.