摘要:
The invention relates to a crane, in particular a rotary tower crane, comprising a lifting cable configured to run out from a crane boom and comprises a load receiving component, drive devices configured to move multiple crane elements and displace the load receiving component, a controller configured to control the drive devices such that the load receiving apparatus is displaced along a movement path, and a pendulum damping device configured to dampen pendulum movements of the load receiving apparatus and/or of the lifting cable. The pendulum damping device comprises a pendulum sensor system configured to detect pendulum movements of at least one of the lifting cable and the load receiving component and a regulator module comprising a closed control loop configured to influence the actuation of the drive devices depending on a pendulum sensor system signal returned to the control loop.
摘要:
The invention relates to a method for the transfer of a load hanging at a load rope of a crane or excavator comprising a slewing gear, a luffing mechanism and a hoisting gear comprising a computer-controlled regulator for the damping of the load oscillation which has a trajectory planner, a disturbance observer and a state regulator with a pre-control, wherein the working space is first fixed by selection of two points, with one of the two points being fixed as the destination point by direction presetting by means of the hand lever and with the nominal speeds for the slewing gear and the luffing mechanism being preset by the hand lever signals.
摘要:
The invention refers to a crane or excavator for the transaction of a load, which is carried by a load cable with a turning mechanism for the rotation of the crane or excavator, a seesaw mechanism for the erection or incline of an extension arm and a hoisting gear for the lifting or lowering of the load which is carried by a cable with an actuation system. The crane or excavator has, in accordance with the invention, a track control system, whose output values are entered directly or indirectly as input values into the control system for position or speed of the crane or excavator, whereas the set points for the control system in the track control are generated in such a way that a load movement results from it with minimized oscillation amplitudes.
摘要:
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.
摘要:
The present invention comprises a method for the control of a drive of a crane, in particular of a slewing gear and/or of a luffing mechanism, wherein a desired movement of the boom tip serves as an input value on the basis of which a control parameter for the control of the drive is calculated, characterized in that the oscillation dynamics of the system comprising the drive and the crane structure are taken into account in the calculation of the control parameter to reduce natural oscillations. The present invention furthermore comprises a method for the control of a hoisting gear of a crane, wherein a desired hoisting movement of the load serves as an input value on the basis of which a control parameter for the control of the drive is calculated.
摘要:
The present invention shows a crane control of a crane which includes at least one cable for lifting a load, wherein at least one sensor unit is provided for determining a cable angle relative to the direction of gravitational force. Furthermore, there is shown a crane control for driving the positioners of a crane which includes at least one first and one second strand of cables for lifting the load, with a load oscillation damping for damping spherical pendular oscillations of the load, wherein first and second sensor units are provided, which are associated to the first and second strands of cables, in order to determine the respective cable angles and/or cable angular velocities, and the load oscillation damping includes a control in which the cable angles and/or cable angular velocities determined by the first and second sensor units are considered. Furthermore, a corresponding crane and a method are shown.
摘要:
A guidance system for manually guided vehicles such as reach stackers or straddle carriers is disclosed. In accordance with the disclosure, the position of the vehicles is permanently automatically detected and supplied to a guiding system for carrying out. Starting from transport job lists made available externally, the travel jobs are assigned to the individual vehicles in an optimized form. Suitable travel routes for the travel jobs are determined and the travel jobs, including the travel routes, are automatically transferred to the vehicle operators. Their carrying out is monitored.
摘要:
The present invention comprises a method for the control of a drive of a crane, in particular of a slewing gear and/or of a luffing mechanism, wherein a desired movement of the boom tip serves as an input value on the basis of which a control parameter for the control of the drive is calculated, characterized in that the oscillation dynamics of the system comprising the drive and the crane structure are taken into account in the calculation of the control parameter to reduce natural oscillations. The present invention furthermore comprises a method for the control of a hoisting gear of a crane, wherein a desired hoisting movement of the load serves as an input value on the basis of which a control parameter for the control of the drive is calculated.
摘要:
The present invention relates to a crane control apparatus for a crane where a load is suspended on a crane cable from a cable suspension point of the crane, comprising an observer for estimating at least the position and/or velocity of the load from at least one sensor input of a first sensor by using a physical model of the load suspended on the crane cable, whereby the physical model of the observer uses the load position and/or the load velocity as a state variable.
摘要:
The present disclosure relates to a system for determining the load mass of a load carried by a hoist cable of a crane, said system comprising a measurement arrangement for measuring the cable load in the hoist cable and a calculation unit for determining the load mass on the basis of the cable force, wherein the calculation unit has a compensation unit which describes and at least partly compensates the effect of the indirect determining of the load mass via the cable force in a model.