Imo Holding Gmbh

Ina Walzlager Schaeffler Kg

Imo Momentenlager Gmbh

Imo Antriebseinheit Gmbh

Hubertus Frank

Erich Russ

Volker Dietz

Rainer Gebauer

Werner Schröppel

Georg Hofmann

Hermann Willaczek

Andreas Nagengast

Richard Nief

Konrad Büttel

Uwe Klinner

Wolfgang Schnapp

Konrad BÜTTEL

Erich Ruß

Werner Schroeppel

Martin VÖLLNER

A main bearing unit for supporting the rotor shaft of a wind turbine, including a rolling bearing having an inner ring, an outer ring and a rolling element arrangement received between the outer and inner ring and a coupling arrangement which is designed to couple the rotor shaft to an output shaft of the wind turbine at least indirectly and so as to transmit torque. The rotor shaft is coupled to one of the outer and inner ring so as to transmit torque. The coupling arrangement is coupled so as to transmit torque to the one of the outer and inner ring as the rotor shaft.

Main bearing unit for the rotor shaft of a wind turbine, and wind turbine

The invention relates to an angular contact roller bearing having an inner ring and an outer ring, between which two or more raceways for a plurality of rolling elements are formed, the rolling elements being designed to roll in their respective raceways in the circumferential direction of the angular contact roller bearing, and the raceways and the rolling elements having cross-sections corresponding to one another at least approximately. A cross-section of a rolling element containing the central longitudinal axis has an at least approximately rectangular design and an imaginary diagonal through the cross-section of the rolling element which for all rolling elements on a raceway of the angular contact roller bearing is arranged on an imaginary surface at least approximately in the form of a cylindrical casing. The ratio of a transverse dimension of the rolling element to its length is characteristic of an angle at which the raceway of the rolling element is inclined relative to the central longitudinal axis of the angular contact roller bearing.

Angular contact roller bearing

The invention is directed to a rolling bearing having at least one row of cylindrical rolling bodies for transmitting axial forces between two annular connection elements which are concentric to a common axis of rotation and which, for the purpose of rotation about the common axis of rotation, are spaced apart from one another by a gap, wherein the at least one row of cylindrical rolling bodies is so arranged that, in the unloaded state of the rolling bearing, the axes of rotation of all the cylindrical rolling bodies of the row lie in a common plane through which the common axis of rotation passes perpendicularly, wherein at least one raceway for the at least one row of cylindrical rolling bodies is in the form of a flat surface of a wire which has on its surface region complementary to the raceway surface an arcuate, convexly curved cross-sectional profile and is thereby inserted at least in some regions into a peripheral recess having a cross-sectional profile complementary thereto in an annular connection element.

Wire race bearing

A wind turbine hub having both blades mounted thereon by means of blade bearings adjustable about the longitudinal axes thereof. The turbine includes means for effecting multi-axes adjustments of a plurality of elements relative to one another. The elements are rotatable about bearings having selectively oriented axes of rotation, each bearing comprising two parts rotatable relative to each other.

Hub of a wind turbine

The invention relates to a corrosion protection device for a bearing arrangement used or usable in machine and/or plant parts and a method for using such (a) corrosion protection device(s), wherein the bearing arrangement consists of at least one metallic material, e.g. 25CrMo4, 42CrMo4, 43CrMo4, 34CrNiMo6, C45, C45N, X20Cr13, GG-20, GGG-40, GS15, St 37 or the like and is used for the mutual relative movement of at least two bearing rings, wherein the bearing arrangement comprises a plurality of rolling elements and a plurality of through-bores and/or a plurality of blind bores, as well as a first screw-mounting surface for affixing a first mating structure and a second screw-mounting surface for affixing an opposite mating structure, characterized in that the corrosion protection device is integrated into at least one of the through-bores and/or blind bores or is or can be introduced in or at such bores.

Bearing arrangement comprising a corrosion protection device

The invention relates to a tracking device comprising a receiving structure that can be adjusted about at least one axis, for mounting at least one element that is sensitive to electromagnetic waves and has a preferential radiation direction, and comprising at least one rotational drive per axis for the purpose of actively rotationally adjusting said receiving structure in order for the element(s) mounted thereupon to track a celestial body on one or multiple axes with the aid of a control system and according to a predetermined algorithm, (each of) the rotational drive(s) comprising two annular connection elements that are concentric with one another, are mounted one upon the other, and are or can be coupled to at least one motor for mutual relative adjustment, a first connection element comprising at least one planar connection surface for fixing in place to a foundation, base, column or a connection element of another pivoting unit, and a second connection element comprising at least one planar connection surface for the purpose of coupling to said receiving structure or to a connection element of another pivoting unit in a rotationally-fixed manner. In addition, at least one row of roller elements is provided between the concentric annular connection elements of a pivoting unit, said roller elements rolling along raceways on the first and second connection elements, a toothing being provided that extends at least partially around one connection element and is formed, together with the raceway(s) that are in place, by machining or shaping a shared annular main part, and bore holes distributed in a circle and passing through the planar contact surface being provided on the other connection element for the purpose of fixing to a contact part, and being formed together with the raceway(s) that are in place by machining or shaping a shared annular main part.

Tracking device comprising a receiving structure which can be adjusted about at least one axis, for mounting at least one element that is sensitive to electromagnetic waves and has a preferential radiation direction

The invention relates to a rolling bearing arrangement (), preferably a large rolling bearing with a diameter of 0.5 or more, for mounting parts of an energy system, in particular as blade bearings for a wind turbine, comprising at least two relatively rotatable annular elements () arranged concentrically with one another and at least regionally inside one another, for connection to relatively rotatable parts of the energy system, wherein two relatively rotatable connecting elements () are separated from each other by a gap () and at least partially overlap each other in the radial direction, wherein, further, provided in the region of the gap () in radially overlapping regions of the annular connecting elements () are at least two rows of rolling elements (), each of which rolls along a respective two raceways () that overlap each other at least regionally in the radial direction, wherein one or more raceways () for rolling elements () are disposed in radially overlapping sections () in such fashion that the contact angle which the connecting line between the centers of the points of contact of a rolling element () with its two raceways makes with the ring plane is equal to or greater than 45&#xb0;, such that such an axial rolling bearing serves to transmit predominantly axially acting force components, and wherein at least one additional bearing is provided for transmitting predominantly radially acting force components and has a contact angle of less than 45&#xb0;, preferably 25&#xb0; or less, particularly 10&#xb0; or less, wherein any raceways for radial rolling bearings that are incorporated directly into the annular connecting elements () are, at most, ones having a maximum distance between them, perpendicular to the raceway surface, that is equal to or less than 25% of the largest distance perpendicular to the raceway surface between two raceways of an axial rolling-bearing row.

Arrangement for mounting counter-rotatable parts of an energy system

The invention relates to a drive mechanism () for rotatably coupling a first system part or machine part, preferably an assembly (A), to a base, pedestal or frame or to another system part or machine part, for example for rotary positioning during the processing of large workpieces or during the moving of loads, which drive mechanism comprises two ring-shaped connecting elements () each having at least one planar connecting surface () and fastening means () that are arranged distributed in a crown shape therein and effect connection to different system parts or machine parts or the like, said two connecting elements () being arranged concentrically with each other and radially one inside the other with a gap-shaped interspace () in which are disposed one or more rows of rolling elements (), each row whereof rolls between two respective raceways () on the two connecting elements (), thus enabling same to rotate relative to each other, at least one connecting surface () and at least one raceway () being formed by machining or shaping a common base body. The invention is characterized in that at least one fully circumferentially extending row of magnets () is arranged inside the gap () on one connecting element () and at least one fully circumferentially extending row of coils () is arranged directly opposite said magnets on the other connecting element (). According to the invention, at least one fully circumferentially extending row of magnets is arranged inside the gap on one connecting element and at least one fully circumferentially extending row of coils is arranged directly opposite said magnets on the other connecting element.

Drive mechanism for rotatably coupling a system part or a machine part

The invention is directed to a wind power plant having a rotor mounted rotatably about an axis directed approximately in the wind direction, and having at least two mutually concentric annular elements for connection to oppositely rotatable system components of the wind power plant, one of which comprises means for connection to the rotor of the wind power plant or to a drive shaft of a gearbox coupled thereto; at least one element having a freewheel characteristic is disposed between the two connection elements and together with them forms a freewheel, at least one connection element being provided with at least one integrated raceway for a row of rolling bodies rolling thereon.

Wind power plant

The invention relates to a blade bearing or nacelle bearing of a wind turbine, comprising two rings mounted adjacent to each other and rotatable relative to each other for connection on one side to the hub of the wind turbine and on the other side to a blade of same, or for connection on one side to the tower of the wind turbine and on the other side to the nacelle of same, wherein the two rings rotatable relative to one another are each provided with a circumferential internal toothing or are non-rotatably coupled for the purpose of joint toothed engagement by one or more toothed planetary gears running around a central sun gear, the planetary gears in turn meshing with the toothed sun gear.

Blade bearing or nacelle bearing of a wind turbine

The invention is directed to a rolling bearing arrangement comprising two annular elements that are arranged mutually concentrically and at least regionally inside each other, for connection each to a respective one of two oppositely rotatable system components, and comprising a gap between said connecting elements, such that they are able to rotate in opposite directions about an imaginary axis located at the center of the annular connecting elements and extending approximately perpendicular to the ring plane, wherein at least two rows of rolling bodies are provided in the region of the gap between the connecting elements, wherein the annular connecting elements completely or partially overlap each other in the radial direction and one or more raceways for rolling bodies are arranged in radially overlapping regions of the annular connecting elements, in such a way that the contact angle which the connecting line between the centers of the points of contact of a rolling body with its two raceways makes with the ring plane is equal to or greater than 75&#xb0;, and wherein the rolling bodies of at least one row have a contact angle of 15&#xb0; or less.

Rolling bearing arrangement

A rolling bearing, particularly a rotor bearing, or main bearing, for a wind power generating plant, the bearing having at least two mutually concentric rings separated from each other by a gap in which one or more rows of rolling elements roll along raceways on both rings, such that the two rings are rotatable in mutually opposite directions about their common axis, wherein each ring has at least one connection surface for connection to a foundation, wherein the connection surfaces extend parallel to one another and are passed through approximately perpendicularly by a plurality of fastening bores for receiving fastening bolts extending through them or screwed into them, wherein the raceway of at least one rolling-element row is formed on a part separate from the ring concerned and is pushed away from the ring concerned in a direction perpendicular to the connection surfaces, by at least one resilient element.

Rotor bearing for a wind power generating plant

An assembly for absorbing torques at the rotor hub of a wind turbine whose rotation axis extends toward the wind, and for diverting axial and radial forces and tilting moments into a load-bearing structure by means of a main bearing, and for extracting rotational energy from the rotor hub by means of a gear whose planet gears mesh with a sun gear and a ring gear, and comprising a generator connectable to an output side of the planetary gear, and operates to convert the rotational energy into electrical energy, wherein the planetary gear is integrated with a main bearing of a wind power plant, and the ring gear of the planetary gear is driven by the rotor hub, while the planet gear carrier is fixed to the chassis of a gondola of the power plant, and the sun gear of the planetary gear mechanism is drivingly connected to the generator, and the generator does nor protrude radially beyond the rotor bearing or main bearing.

Assembly for extracting the rotational energy from the rotor hub of the wind turbine of a wind turbine system

A ball bearing having first and second races and, disposed in a gap between the two races, a row of balls of radius Rthat roll along facing tracks of the two races, wherein centers of the balls move on a circular path surrounded by a torus circumscribing all the balls of the row and having the toroidal radius R, a toroidal angle coordinate &#x3c6;, and a poloidal angle coordinate &#x3b8;, wherein each track has with each ball two nearly punctiform contact areas P, P; PPat respective contact angles &#x3b8;, &#x3b8;; &#x3b8;and &#x3b8;, wherein the cross section of the track in the region of the contact points P. . . Phas a finite transverse radius of curvature R. . . R, with R&#x3e;R, and wherein in the vicinity of a contact point P. . . Pthe transverse radius of curvature (R) is a continuous and differentiable function of the poloidal angle coordinate &#x3b8;: R=R(&#x3b8;) that increases outward from the respective contact point P. . . Pin both poloidal directions: R(&#x3b8;)&#x2267;R(&#x3b8;).

Ball bearing

The invention is directed to a device for rotatably coupling two coaxial connecting elements, at least one of which is configured as a circular ring, and each of which has at least one annular surface that faces the corresponding surface of the respective other connecting element but is spaced apart therefrom by a gap, such that they are rotatable in opposite directions about an imaginary axis (axis of rotation) at the center of the annular connecting element and approximately perpendicular to the ring plane, wherein disposed in the gap between the two connecting elements is a rotary joint, configured as a single- or multi-row rolling bearing, for absorbing axial and radial loads and tilting moments, wherein at least one annular connecting element comprises, on its surface facing the gap, a continuously circumferential, planar shoulder having an oblong or elongated cross section and extending away from the gap to a freely terminating, peripheral circumferential edge.

Growing community of inventors

Höchstadt, Germany

Hubertus Frank