Patents Assigned to Miba Gleitlager GmbH
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Patent number: 9419495Abstract: A wind turbine has a rotor and a generator. A planetary transmission is arranged between the rotor and the generator, the planetary transmission being operatively connected to the rotor and the generator. The planetary transmission has at least one planet gear, at least one planet pin, and a planet carrier, the planet gear being arranged on the planet pin. At least one sliding bearing is arranged between the planet pin and the planet carrier, and the planet gear is rotationally fixed to the planet pin.Type: GrantFiled: January 15, 2013Date of Patent: August 16, 2016Assignee: Miba Gleitlager GmbHInventor: Alexander Kari
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Publication number: 20150369284Abstract: The invention relates to a slide bearing set (4), comprising a slide bearing combination consisting of a radial bearing (6) with a radial bearing slide surface (7) and comprising a first axial bearing (8) with an axial bearing slide surface (9), wherein the first axial bearing (8) is arranged next to the radial bearing (6) in an axial direction (10), and with a lubricant supply device, which comprises a supply line (20) for a lubricant to the radial bearing slide surface (7) of the radial bearing (6). At least one first transversal groove (22) is disposed in the radial bearing (6) such that at least one part of the lubricant is deviated towards the first axial bearing (8) and the first axial bearing (8) can be supplied with the lubricant solely via the radial bearing (6).Type: ApplicationFiled: January 27, 2014Publication date: December 24, 2015Applicant: Miba Gleitlager GmbHInventors: Gunther HAGER, Johannes Sebastian HOELZL, Alexander KARI
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Publication number: 20150369352Abstract: The invention relates to a wind power plant gear mechanism (1) with an axle (5) and a gearwheel (2), wherein at least one plain bearing bush (4, 20) is arranged between the axle (5) and the gearwheel (2), and wherein the at least one plain bearing bush (4, 20) is connected to the gearwheel (2) via a conical press fit, wherein the at least one plain bearing bush (4, 20) has a first end surface (8) and a second end surface (9) which lies opposite the former along a longitudinal center axis (7) through the at least one plain bearing bush (4, 20), and wherein the first end surface (8) has a diameter d (10) and the second end surface (9) has a diameter D (11), wherein the diameter D (11) is greater than the diameter d (10), and wherein a bearing surface (13) for the at least one plain bearing bush (4, 20) is formed so as to adjoin the end surface (9) with the diameter D (11).Type: ApplicationFiled: January 27, 2014Publication date: December 24, 2015Applicant: Miba Gleitlager GmbHInventors: Gunther HAGER, Johannes Sebastian HOELZL
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Publication number: 20150361962Abstract: The invention relates to a wind turbine gearbox (1) having at least one gearwheel (2) which is mounted on an axle (5), wherein a bearing point with a plain bearing (4) is arranged between the gearwheel (2) and the axle (5), and wherein, in the axle (5), there is formed a recess for the supply of a lubricant to the plain bearing (4). In the region of a contact surface of the plain bearing (4), a groove (18) is formed in the gearwheel (2) or an intermediate space (7) is formed between the plain bearings (4), which groove or intermediate space is connected via at least one connecting line (16) to the surrounding atmosphere.Type: ApplicationFiled: January 27, 2014Publication date: December 17, 2015Applicant: Miba Gleitlager GmbHInventors: Gunther HAGER, Johannes Sebastian HOELZL, Alexander KARI
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Patent number: 9162423Abstract: The invention relates to a multilayered bearing shell (2) comprising a back metal layer (3) as a carrier element for the layer structure and at least one further bearing layer joined to the back metal layer (3), wherein the back metal layer (3) is made from a bronze. The back metal layer (3) contains in addition to copper, which forms the matrix of the bronze, tin in a proportion selected from a range with a lower limit of 1.25 wt. % and an upper limit of 12 wt. %, zinc in a proportion selected from a range with a lower limit of 0.25 wt. % and an upper limit of 6 wt. % and phosphorus in a proportion selected from a range with a lower limit of 0.01 wt. % and an upper limit of 0.5 wt. %.Type: GrantFiled: June 13, 2012Date of Patent: October 20, 2015Assignees: Miba Gleitlager GmbH, MTU Friedrichshafen GmbHInventors: Reiner Boeschen, Robert Mergen, Falko Langbein, Ulrich Schmid
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Publication number: 20150219154Abstract: The invention relates to a multi-layered plain bearing (1) comprising a sliding layer (5) made from a tin-based alloy, which contains between 1 wt. % and 8 wt. % Sb, between 8 wt. % and 20 wt. % Cu and if necessary at least one of the elements Si, Cr, Ti, Zn, Ag and Fe, wherein the proportion of each of these elements is between 0.1 wt. % and 2 wt. %, the total content of all of the alloy elements is a maximum of 30 wt. % and remainder is formed by Sn, wherein at least a proportion of the Cu with Sn is present as a copper-rich deposit in the tin matrix with a maximum particle size of 50 nm and/or in addition contains at least one further element from a second group consisting of Al, Bi and Ni, wherein the proportion of the at least one further element is between 0.1 wt. % and 5 wt. % for each of said elements, and wherein the sliding layer (5), which contains at least one element of the second element group, is deposited by a PVD-method when the particle size of the nanoparticles is greater than 50 nm.Type: ApplicationFiled: December 16, 2014Publication date: August 6, 2015Applicant: MIBA GLEITLAGER GMBHInventors: Walter GAERTNER, Johann NAGL, Christian UEBLEIS, Jakob ZIDAR
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Patent number: 9074627Abstract: The invention relates to an anti-friction coating (4) for a multi-layered friction bearing (1) made from a tin-based alloy which, in addition to tin, contains at least one element from the group comprising antimony and copper as the main alloying element, optionally lead and/or bismuth, and unavoidable impurities originating from the elements during the manufacturing process, and the proportion of antimony is at most 20% by weight, the proportion of copper is at most 10% by weight and the total proportion of lead and bismuth is at most 1.Type: GrantFiled: December 9, 2010Date of Patent: July 7, 2015Assignee: Miba Gleitlager GmbHInventor: Jakob Zidar
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Publication number: 20140378261Abstract: A wind turbine has a rotor and a generator. A planetary transmission is arranged between the rotor and the generator, the planetary transmission being operatively connected to the rotor and the generator. The planetary transmission has at least one planet gear, at least one planet pin, and a planet carrier, the planet gear being arranged on the planet pin. At least one sliding bearing is arranged between the planet pin and the planet carrier, and the planet gear is rotationally fixed to the planet pin.Type: ApplicationFiled: January 15, 2013Publication date: December 25, 2014Applicant: MIBA GLEITLAGER GMBHInventor: Alexander Kari
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Patent number: 8845199Abstract: The invention relates to a method for the production of an anti-friction bearing element (1) comprising a carrier metal which forms a back bearing side and a bearing metal, wherein the carrier metal is made from a bronze-based alloy. The bearing metal is also made from a bronze-based alloy, wherein the hardness of said bronze-based alloy is reduced at least in some areas by heat treatment, so that in the radial direction of the anti-friction bearing a hardness gradient is formed with increasing hardness in the direction of the back side (7) of the anti-friction bearing element (1).Type: GrantFiled: June 13, 2012Date of Patent: September 30, 2014Assignee: Miba Gleitlager GmbHInventors: Lukas Haedicke, Falko Langbein
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Patent number: 8840521Abstract: The invention relates to a gear train (1), in particular a planetary gear train, for a wind turbine comprising a plurality of gears, in particular planet gears (4), which are each supported on a shaft (8) by means of a bearing element, wherein the bearing element is a multi-layer plain bearing (7).Type: GrantFiled: April 14, 2011Date of Patent: September 23, 2014Assignee: Miba Gleitlager GmbHInventors: Alexander Kari, Christian Forstner
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Patent number: 8586513Abstract: The invention relates to an anti-friction coating (4) made from a tin-based alloy which, in addition to tin, contains at least one other element from the group comprising antimony and copper, optionally lead and/or bismuth, and optionally at least one element form a group comprising zirconium, silicon, zinc, nickel and silver, and the proportion of antimony is at most 20% by weight, the proportion of copper is at most 10% by weight, the total proportion of lead and bismuth is at most 1.5% by weight, the total proportion of copper and antimony is at least 2% by weight and the total proportion of zirconium, silicon, zinc, nickel and silver is at most 3% by weight, and tin is present bonded in the form of inter-metallic phases and freely as a tin phase with beta-tin grains.Type: GrantFiled: December 9, 2010Date of Patent: November 19, 2013Assignee: Miba Gleitlager GmbHInventor: Jakob Zidar
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Publication number: 20130216169Abstract: The invention relates to a multi-layer plain bearing (1) that has a front side (4) that can face the element to be supported and a rear side (6) opposite the front side, comprising a supporting layer (2), a sliding layer (3) arranged on the front side (4) and an anti-fretting layer (5) arranged on the rear side (6), wherein the anti-fretting layer (5) is made of a copper-based alloy having copper mixed-crystal grains.Type: ApplicationFiled: April 14, 2011Publication date: August 22, 2013Applicant: MIBA GLEITLAGER GMBHInventor: Jakob Zidar
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Publication number: 20130188898Abstract: The invention relates to a method for the production of an anti-friction bearing element (1) comprising a carrier metal which forms a back bearing side and a bearing metal, wherein the carrier metal is made from a bronze-based alloy. The bearing metal is also made from a bronze-based alloy, wherein the hardness of said bronze-based alloy is reduced at least in some areas by heat treatment, so that in the radial direction of the anti-friction bearing a hardness gradient is formed with increasing hardness in the direction of the back side (7) of the anti-friction bearing element (1).Type: ApplicationFiled: June 13, 2012Publication date: July 25, 2013Applicant: MIBA GLEITLAGER GMBHInventors: Lukas HAEDICKE, Falko LANGBEIN
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Publication number: 20130071246Abstract: The invention relates to a bearing element (7) for supporting the rotor hub (4) of a wind turbine (1), comprising at least one inner ring element (10, 40) and at least one outer ring element (11, 41), wherein a plain bearing is formed between the inner ring element (10, 40) and the outer ring element (11, 41), and wherein the plain bearing is formed by at least two plain bearings (8, 9, 38, 39) arranged at an axial distance (44) from one other.Type: ApplicationFiled: April 14, 2011Publication date: March 21, 2013Applicant: Miba Gleitlager GmbHInventors: Alexander Kari, Christian Forstner
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Publication number: 20130053210Abstract: The invention relates to a gear train (1), in particular a planetary gear train, for a wind turbine comprising a plurality of gears, in particular planet gears (4), which are each supported on a shaft (8) by means of a bearing element, wherein the bearing element is a multi-layer plain bearing (7).Type: ApplicationFiled: April 14, 2011Publication date: February 28, 2013Applicant: MIBA GLEITLAGER GMBHInventors: Alexander Kari, Christian Forstner
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Publication number: 20130051715Abstract: The invention relates to an anti-fretting layer (5) for a multi-layer plain bearing (1), the anti-fretting layer being composed of a copper-based alloy, which in addition to copper as the main alloying element contains at least one element from the group comprising germanium, tin, indium, zinc, nickel, cobalt, bismuth, lead, silver and antimony and unavoidable impurities originating from production, wherein the total fraction of said alloying elements is at least 1 wt. % and at most 30 wt. %, and wherein copper mixed-crystal grains comprising copper and the at least one element are present in the copper alloy, wherein the copper mixed-crystal grains are oriented in such a way that an orientation index M{hkl} according to formula (I) M ? { hkl } = I ? { hkl } ? ? I 0 ? { hkl } I 0 ? { hkl } ? ? I ? { hkl } of each of the lattice plane sets {hkl} has a value of less than 3.Type: ApplicationFiled: April 14, 2011Publication date: February 28, 2013Applicant: Miba Gleitlager GmbHInventor: Jakob Zidar
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Publication number: 20120321909Abstract: The invention relates to a multilayered bearing shell (2) comprising a back metal layer (3) as a carrier element for the layer structure and at least one further bearing layer joined to the back metal layer (3), wherein the back metal layer (3) is made from a bronze. The back metal layer (3) contains in addition to copper, which forms the matrix of the bronze, tin in a proportion selected from a range with a lower limit of 1.25 wt. % and an upper limit of 12 wt. %, zinc in a proportion selected from a range with a lower limit of 0.25 wt. % and an upper limit of 6 wt. % and phosphorus in a proportion selected from a range with a lower limit of 0.01 wt. % and an upper limit of 0.5 wt. %.Type: ApplicationFiled: June 13, 2012Publication date: December 20, 2012Applicants: MTU FRIEDRICHSHAFEN GMBH, MIBA GLEITLAGER GMBHInventors: Reiner BOESCHEN, Robert MERGEN, Falko LANGBEIN, Ulrich SCHMID
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Patent number: 8324138Abstract: The invention documents an anti-friction lacquer containing at least one additive (5) that has a polymer matrix distributed within. Additive (5) is subject to change in temperature conditions in a temperature region with an upper threshold of 600° C. for a particular irreversible energy consuming conversion, such as phase change or modification change.Type: GrantFiled: July 31, 2007Date of Patent: December 4, 2012Assignee: Miba Gleitlager GmbHInventor: Robert Mergen
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Publication number: 20120251023Abstract: The invention relates to a method for producing a plain bearing element (1) by means of coating a surface (5) of a substrate with a tribologically effective sliding layer (6) by means of cathode sputtering in a gas atmosphere and using at least one metal target (16), with a substrate having a cylindrical cavity (3) being used, and the target (16) being arranged at least partially in the cavity (3) and furthermore the discharge for sputtering the target (16) is supported or maintained by means of a third electrode (26).Type: ApplicationFiled: November 5, 2010Publication date: October 4, 2012Applicant: MIBA GLEITLAGER GMBHInventor: Walter Gaertner
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Patent number: 8147981Abstract: An alloy, in particular for an anti-friction coating, includes elements which form a matrix and at least a soft phase and/or a hard phase, which soft phase elements and/or hard phase elements form a solid solution or a bond with the matrix element. The soft phase and/or hard phase is dispersed in the matrix and the solid solution or bond is formed only in the region of the phase boundary of the matrix with the soft phase and/or with the hard phase.Type: GrantFiled: November 19, 2010Date of Patent: April 3, 2012Assignee: Miba Gleitlager GmbHInventors: Hubert Lang, Thomas Rumpf