The invention relates to an elastic rotary bearing for two-blade rotors that are used in wind turbines with high load cycles. The invention especially relates to a new rotor hub for especially elastically borne two-blade rotors of wind turbines into which an elastic rotary bearing is integrated which in turn is composed of two rotary bearing units of layer elements and conical elements.
F16F 1/41 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction consisting of a stack of similar elements separated by non-elastic intermediate layers the spring consisting of generally conically arranged elements
The invention relates to an oscillation damper which is in particular suitable for wind turbines and which is based on the eddy current principle and is temperature-controlled in such a way that it can not only effectively dissipate the heat generated by the eddy current but can also effectively and self-adjustingly compensate for the damping loss occurring at higher temperatures.
F16F 15/03 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using electromagnetic means
F16F 7/10 - Vibration-dampersShock-absorbers using inertia effect
F03D 13/20 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors
3.
CARDANICALLY FLEXIBLE COUPLING FOR TRANSMITTING HIGH AXIAL FORCES FOR DRIVE TRAINS IN WIND TURBINES
The invention relates to machine components which are intended preferably for drive trains for driven installations and have the function of a cardanically flexible coupling with simultaneously high torsional stiffness, and are capable of absorbing high forces acting axially on the installation. The particular functionality of these couplings is achieved in particular through the use of specially equipped and oriented hydraulic springs. The invention relates in particular to drive trains for wind turbines, which are equipped with a corresponding coupling according to the invention, in order to divert and distribute in particular high axial forces.
F16D 3/06 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
F16D 3/12 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
F16D 3/64 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts
4.
SOUND-PROOFED PLANETARY GEARBOX, AND WIND TURBINE COMPRISING SUCH A GEARBOX
The invention relates to a planetary gearbox for higher gear ratios which can be used in machines and plants, in particular wind turbines, in which high torques and powers have to be transmitted. More particularly, the invention relates to such a planetary gearbox which, owing to a special novel design, is particularly sound-proofed with respect to sound events, in particular radially and torsionally directed sound events, which occur frequently during operation of the machine or plant.
The invention relates to a suspension device, which is simple to handle and can be used in a reversible manner, by means of which a vibration damper can be attached externally to parts of a wind turbine in the course of the construction in order to suppress or absorb vibrations occurring in this building phase.
The invention relates to a tuned mass damper or vibration damper which, with the aid of an assembly (2) of a plurality of stacked, specially shaped or bent leaf springs (2.1), can be adapted over a certain range to the disturbance frequencies acting on a component to be damped or of the vibration system to be damped, the position of the damper mass (1, 34) being changed essentially only slightly. The invention relates in particular to one- and two-dimensionally effective tuned mass dampers. The tuned mass dampers according to the invention are suitable in particular for installations, vehicles and machines that undergo frequent changes in rotational speed, resulting frequently in disturbance frequencies that become noticeable, in particular, in the form of structure-borne sound, or other vibrations.
The invention relates to a new type of tuned mass damper which is suitable in particular for damping oscillations of a low frequency, and can thus be used preferably as a construction damper when building or siting high, narrow structures, such as wind-turbine towers. The invention relates in particular to a pendulum oscillation damper having a first pendulum, to which the mass is attached, and a second pendulum, which is formed by a spring-like support device of a different design and is operated using a gas-air volume such that, with the aid thereof, the frequency of the oscillation system can be adapted and adjusted.
F16F 7/10 - Vibration-dampersShock-absorbers using inertia effect
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/04 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only in a chamber with a flexible wall
F16F 9/56 - Means for adjusting the length of, or for locking, the spring or damper, e.g. at the end of the stroke
The invention relates to novel elastic torsion stop components based on multilayer elastomer metal elements in cylindrical, conical, or spherical shape, which are particularly suitable for use as maintenance-free and low-wear joints having a large angular spread, for example in vibration absorbers, such as in pendulum vibration absorbers of wind turbines.
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
F16F 1/393 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin with spherical or conical sleeves
F16F 1/40 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction consisting of a stack of similar elements separated by non-elastic intermediate layers
F16F 1/48 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction characterised by the mode of stressing loaded mainly in torsion
E04B 1/98 - Protection against other undesired influences or dangers against vibrations or shocksProtection against other undesired influences or dangers against mechanical destruction, e.g. by air-raids
F03D 7/02 - Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
F16F 7/108 - Vibration-dampersShock-absorbers using inertia effect the inertia member being resiliently mounted on plastics springs
The invention relates to a new type of independently damping pendulum suspension for pendulum dampers for use in tall slender constructions and technical installations, more particularly wind turbines. The invention relates more particularly to a Cardan joint equipped with damping elements and mounted at the other end opposite the pendulum mass, which Cardan joint is able, despite the small motions there, to sufficiently damp the oscillations of the pendulum produced by disturbing frequencies.
F16F 15/03 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using electromagnetic means
F16F 7/10 - Vibration-dampersShock-absorbers using inertia effect
10.
BEARING STRUCTURE MADE OF ELASTOMER BEARING ELEMENTS WHICH CAN BE MOUNTED AND EXCHANGED INDIVIDUALLY
The invention relates to a bearing structure for large and heavy machines and systems, such as a wind turbine for example. In particular, the invention relates to such a bearing structure based on elastomer bearing elements, which can be mounted and exchanged individually without having to at least partly disassemble the bearing structure together with the system or machine. The invention further relates to a method for simply exchanging elastomer elements in a bearing for heavy and large systems and machines.
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
F16F 1/40 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction consisting of a stack of similar elements separated by non-elastic intermediate layers
11.
ROTATION DAMPER AND VIBRATION ABSORBER EQUIPPED THEREWITH
The invention relates to a novel rotation vibration damper and to vibration absorbers having said damper for wind turbines or other high and, relative to the height thereof, narrow installations or buildings. The invention in particular relates to vibration absorbers comprising at least one oscillating mass on a pendulum cable or pendulum rod, wherein the mass is caused to vibrate by means of an excitation frequency and can then be damped by a rotation damper according to the invention, in particular a rotating eddy current magnet damper, as part of the absorber.
The invention relates to a vibration absorber or damper which can be adapted to the disruptive sequences of a component to be damped or a machine or system to be damped over a specific range by means of a leaf spring with a variable physically effective length, said disruptive sequences acting in a specific direction. The invention relates in particular to a vibration absorber that is largely undamped itself such that larger amplitudes and therefore larger forces can be achieved. The damper according to the invention is suitable in particular for reducing the structure-borne noise in systems and machines, preferably wind turbines, which frequently undergo changes in rotational speed and are thus subject to vibrations.
F16F 7/10 - Vibration-dampersShock-absorbers using inertia effect
F16F 7/104 - Vibration-dampersShock-absorbers using inertia effect the inertia member being resiliently mounted
F16F 15/073 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with metal springs using only leaf springs
13.
WIND POWER PLANTS HAVING ELASTIC SELF-ALIGNING BALL BEARINGS
The invention relates to wind power plants which are equipped with novel elastic self-aligning ball bearings. Said self-aligning ball bearings can, in principle, be used for the cardanic suspension of a pendulum absorber, preferably in the tower of a wind power plant as well as for the rope attachment of floating off-shore plants at the bottom of a body of water. The invention also relates to the correspondingly equipped vibration pendulum absorbers per se and to corresponding installations and pendulum absorbers which have additional damping devices.
The invention relates to a vibration absorber, which in the broadest sense is based on a pendulum device for dampening undesirable vibrations, which as a result of acting forces, in particular wind forces, occur in high slender structures, in particular wind turbines. The invention thereby relates to such vibration absorbers, in which the pendulum mass can be entirely or partially or temporarily stopped or braked by means of an electromagnetic brake depending on the control of the brake, by way of corresponding power supply or current regulation.
The invention relates to a novel vibration absorber for damping vibrations of buildings or machinery with a natural frequency of preferably below 1 Hz, preferably below 0.5 Hz, in particular less than 0.25 Hz, as can occur, for example, in wind power plants or else in other high narrow buildings or installations. The invention relates, in particular, to vibration absorbers which, in addition to a main mass which is set fixedly per se and is moved along a path which is analogous or similar to a pendulum mass, have a substantially smaller rotating flywheel mass which can be set in a variable manner, moves with the main mass on the path thereof, and with the aid of which the frequency of the absorber can be precision set and/or adapted.
The invention relates to a vibration damper, which can be variably adapted, over a certain range, to the disturbance sequences of the component to be damped or of the machine or system to be damped. The invention relates in particular to a vibration damper that is largely undamped itself such that larger amplitudes and therefore larger forces can be achieved here. The damping device according to the invention is suitable in particular for systems and machines that are subjected to frequent changes in rotational speed, such as wind turbines.
The invention relates to an elastic bushing that has a novel damping system as a result of corresponding structural measures and arrangements, for the purpose of eliminating or reducing unwanted vibrations in planetary bearings, particularly planetary gears for planetary gearboxes. The invention also particularly relates to the use of such bushings, planetary gears or planetary gearboxes in machine parts and installations that only transmit low or zero torque, such as in wind turbines.
F16H 57/08 - General details of gearing of gearings with members having orbital motion
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
F16H 57/04 - Features relating to lubrication or cooling
18.
ADAPTIVE ELASTIC BEARING AND TUNED MASS DAMPER CONTAINING SAME
The invention relates to a tuned mass damper which has variable rigidity and can therefore be tuned and adjusted in a controlled way to different excitation frequencies arising in the system or machine to be damped. The variable rigidity is achieved by the arrangement of appropriately placed compressible free spaces (06) which can be filled with elastomer material (05) in a controlled way. The invention relates in particular to such tuned mass dampers according to the invention which are capable of damping, by means of hydraulic and elastic means, the vibrations generated by different frequencies in that the rigidity of the elastic means can be changed in a controlled way.
F16F 1/393 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin with spherical or conical sleeves
19.
HYDRAULIC DAMPER AND USE THEREOF IN PENDULUM ABSORBERS FOR WIND TURBINES
The invention relates to a novel damper type for hydraulically damping in vibration absorbers, in particular pendulum absorbers. Due to its design features, the hydraulic damper as per the invention has adjustable damping characteristics corresponding to its axial strain during operation, which differ from conventional dampers. The invention further relates to novel dampers, or pendulum absorbers, which are also substantially temperature-independent as a result of corresponding devices or without the different damping characteristics. The invention also relates to the use of such hydraulic dampers as essential components in pendulum absorbers that have been optimised for use, in particular in towers or buildings, preferably in wind turbines.
The invention relates to an elastomeric bushing and to a bearing equipped with the bushing in question. The bushing according to the invention can be pretensioned, or calibrated, even after installation in the bearing by the displacement of elastomeric material within the bushing, the material being displaced by different pressing and clamping means in the bushing and/or in the surrounding bearing.
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
21.
ANTI-FRICTION BEARING WHICH CAN BE PRESTRESSED HYDRAULICALLY
The invention relates to an anti-friction bearing which has a bearing-prestressing system and can be prestressed in a targeted and adjustable manner by appropriate pressure-generating means. The anti-friction bearing can be prestressed variably over a broad range, even during operation, by hydraulic fluids which exert pressure within an elastomeric pressure ring.
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