Patent application number | Description | Published |
20100067838 | ROLLING BEARING ARRANGEMENT - 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°, and wherein the rolling bodies of at least one row have a contact angle of 15° or less. | 03-18-2010 |
20110229312 | ROLLING BEARING ASSEMBLY AND WIND TURBINE EQUIPPED THEREWITH - A rolling bearing arrangement comprising two rings arranged concentrically and at least regionally one inside the other, and a gap between the rings, such that the rings are rotatable in opposite directions about an axis at the center of the rings and perpendicular to a ring plane, wherein at least one raceway is closed on itself in a circular shape in a plane and is provided with at least one row of symmetrical rolling bodies between the rings, wherein the rolling bodies of one row are guided at generally equidistant spacings by a cage having at least one disk-shaped region is placed in continuously circumferential, groove-shaped depression in the region of the raceway of one bearing ring, and wherein the cage is shaped like a comb, comprising a plurality of spacers that are joined together along a spine region, and, between every two neighboring spacers, a respective pocket for receiving a respective rolling body. | 09-22-2011 |
20110255815 | DEVICE FOR ROTATABLY COUPLING TWO COAXIAL CONNECTING ELEMENTS - 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. | 10-20-2011 |
20120020792 | WIND POWER PLANT - 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. | 01-26-2012 |
20130011089 | BALL BEARING - A ball bearing having first and second races and, disposed in a gap between the two races, a row of balls of radius R | 01-10-2013 |
20130039611 | SEALING ASSEMBLY FOR A ROLLING BEARING - The invention relates to a sealing assembly for a rolling bearing having two mutually concentric rings spaced apart from each other by a fully circumferential gap in which one or more rows of revolving rolling elements are disposed, such that the two rings are rotatable relative to each other about their common axis, wherein the gap is sealed in the region of at least one of its two mouths, and wherein provided in the region of a gap seal are at least two seal rings, each having at least one sealing lip and an anchoring region on a surface region of the particular seal ring that faces away from the sealing lip, the seal rings being fixed to the same rolling bearing ring, whereas their respective sealing lips bear against the other rolling bearing ring, specifically against surface regions having identical or similar cross section. | 02-14-2013 |
20130062833 | DEVICE FOR FIXING ELASTIC ELEMENTS - The invention relates to a device for sealing a gap between parts that are moved relative to one another, namely a fixing part, for fixing at least one elastic sealing element at an edge thereof, and a stop part along which another edge of at least one elastic sealing element runs, wherein the fixing part comprises, running along the gap, at least one groove in which are inserted one or more anchoring parts that engage through or around the sealing element and/or a retaining element that retains same. | 03-14-2013 |
20130239722 | SWIVEL DRIVE - A device for a rotary drive of a crane, a working platform, a tracking photovoltaic assembly, a heliostat, or the like, for tracking mirrors of a solar thermal power station, etc., on a foundation or chassis, of a heavy duty vehicle, or another part of a machine, comprising a worm gear having a housing having a connecting surface for connecting to a part of a machine or facility, chassis, or a foundation, with a rotatable worm, and a worm wheel rotatably mounted in the housing, wherein there is provided a rolling contact bearing on each side of toothing of the worm wheel engaged with the worm, and a connecting surface for connecting to a part of a machine or facility, to a chassis or a foundation The housing and the worm wheel each formed in one piece, wherein the smallest internal diameter of the housing is larger than the largest external diameter of the worm wheel. | 09-19-2013 |
20130287328 | BEARING ARRANGEMENTS AND INTEGRATED COOLING AND/OR HEATING DEVICES AND METHOD FOR INTEGRATED HEATING OR COOLING - A bearing arrangement comprising mutually rotatable components, and devices for integrated heating and cooling of rolling-element raceways, or of mutually rotatable components, and a method for integrated heating or cooling applicable to the mutually rotatable components, and devices for integrated heating or cooling of the components and rolling-element raceways wherein the respective heating and/or cooling is effected by direct heat input into the components, or direct heat removal from the components, and is controllable, and is produced by the interaction of cold- or heat-producing elements, or functions or devices, and is adapted to switch between a heating effect and a cooling effect. | 10-31-2013 |
20130315736 | ASSEMBLY FOR EXTRACTING THE ROTATIONAL ENERGY FROM THE ROTOR HUB OF THE WIND TURBINE OF A WIND TURBINE SYSTEM - 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 not protrude radially beyond the rotor bearing or main bearing. | 11-28-2013 |
20130343688 | ASSEMBLY AS BEARING ARRANGEMENT FOR THE ROTATIONAL MOUNTING OF MACHINE AND PLANT PARTS - A bearing arrangement for rotational mounting of machine and plant components, comprising a nose ring, a bearing ring and a retaining ring of a large rolling bearing serving as a main mounting of a rotor of a wind power installation, and further comprising a plurality of tapered-roller rolling bearing arrays, particularly at least two tapered-roller rolling element arrays, which roll circulatingly about a main axis of rotation about the axial direction, and further comprising at least one cylindrical roller array arranged perpendicularly to the tapered-roller rolling element arrays and operative to support radial force components, wherein the plurality of tapered-roller rolling bearing arrays for supporting all axial force components are arranged parallel to one another, and planes of the tapered-roller rolling element arrays in which the tapered-roller rolling element arrays rotate about the axial main axis upon rotational movement of the mounted part do not intersect. | 12-26-2013 |
20140023305 | ROTOR BEARING FOR A WIND POWER GENERATING PLANT - 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. | 01-23-2014 |
20140191508 | ROTARY JOINT FOR UNDERWATER OPERATION AND SYSTEM EQUIPPED THEREWITH FOR GENERATING ENERGY FROM WATERPOWER - A rotary joint for use in a system for generating energy from water power, the joint comprising a first rotationally symmetrical connecting element and a second rotationally symmetrical connecting element disposed concentrically with the first connecting element and rotatable relative thereto, an annular gap between the two connecting elements, and a row of rolling elements rolling along a race on each of the connecting elements, wherein provided to seal the annular gap is a sealing device having a sealing ring fixed to the first connecting element, and a circumferential sealing lip, or sealing surface, extends along a lead-in surface, wherein the second connecting element is divided into a race ring, with at least one race, and a lead-in ring with a lead-in surface for at least one sealing ring, the lead-in ring being removably connected to at least one race ring. | 07-10-2014 |
20140348456 | ROLLING BEARING ARRANGEMENT WITH INCLINED HARDNESS ZONES - The invention relates to a rolling bearing arrangement for a rotational connection for a roller/ball combination raceway system, for the purpose of relative movement of a plurality of rotating elements, in particular two rolling bearing rings supported on one another. At least one rolling element raceway is hardened along its annular shape in the contact area between rolling element and rolling bearing ring. The invention is characterized in that provided at the beginning and the end of the at least one hardened rolling element raceway is at least one overlap region which extends along the rolling element raceway, the overlap region comprising a region of lower hardness than the surrounding hardened region, the lower hardness gap region, extending at an inclination through the overlap region. | 11-27-2014 |
20140356169 | HUB OF A WIND TURBINE - 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. | 12-04-2014 |
20150071578 | BLADE BEARING OR NACELLE BEARING OF A WIND TURBINE - 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. | 03-12-2015 |