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公开(公告)号：US10428917B2
公开(公告)日：2019-10-01
申请号：US15169125
申请日：2016-05-31
发明人： Yuri Spitsberg , Perry Robert Gibson , David Parks
摘要： Shaft assemblies include an elongate shaft having a plurality of closely spaced apart external notches with wall segments having a greater outer diameter than an outer diameter of the notches residing therebetween and at least one self-retaining locking ring that engages one of the notches to axially lock into position on the shaft and provide a pull out force that is between about 100 lbf to about 1000 lbf. The notches can have a width that is between about 0.010 inches to about 0.020 inches, on average, and a depth that is between about 0.001 inches to about 0.010 inches, on average.
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公开(公告)号：US10415693B2
公开(公告)日：2019-09-17
申请号：US15384179
申请日：2016-12-19
申请人： GE Avio S.r.l.
发明人： Paolo Altamura
摘要： An oil transfer assembly supplies oil into a moving, rotating tube extending along an axis. The assembly is provided with a support plate transversal to the axis and a sleeve, which is angularly fixed with respect to the support plate, it is configured to be coupled in a sliding and watertight way to a terminal section of the inlet of said tube and has at least one chamber for transferring oil into said terminal section of the inlet. The assembly is also equipped with at least two tubular bodies, which project axially from the support plate, define between them an annular channel communicating with the chamber and join the sleeve to the support plate in a watertight manner and with clearances so as to leave freedom of orientation of the sleeve around any direction orthogonal to the axis.
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公开(公告)号：US10408069B2
公开(公告)日：2019-09-10
申请号：US15150832
申请日：2016-05-10
申请人： SNECMA
摘要： A radial control shaft for a device for controlling the pitch of fan blades of a turbine engine having an unducted fan, is disclosed. The shaft includes an external portion that is designed to be mounted in the control device from its outside and to be coupled to at least one fan blade in order to adjust its pitch, and an internal portion, independent of the external portion, that is designed to be mounted from the inside of the control device, to be connected to a load transfer bearing in order to pivot the shaft about a radial axis, and to close an oil enclosure in which the bearing is housed, the external and internal portions of the shaft being coupled to each other. A method of mounting such a shaft and a control device including such a shaft are also disclosed.
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公开(公告)号：US10396623B2
公开(公告)日：2019-08-27
申请号：US16169734
申请日：2018-10-24
申请人： MINEBEA CO., LTD.
发明人： Makoto Otsuka , Yutaka Kamogi , Jun Ohmura
摘要： A motor includes: a motor shaft including a press-fitting surface; and a first annular projection group and a second annular projection group formed in the press-fitting surface of the motor shaft. The first annular projection group and the second annular projection group are separated from each other in an axial direction, a distance between an adjacent two of annular projections in the first annular projection group and a distance between an adjacent two of annular projections in the second annular projection group are smaller than a distance between the first annular projection group and the second annular projection group in the axial direction.
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公开(公告)号：US20190249720A1
公开(公告)日：2019-08-15
申请号：US16249187
申请日：2019-01-16
申请人： ROLLS-ROYCE plc
发明人： Alan R. MAGUIRE
CPC分类号： F16D3/50 , F02C3/04 , F02C7/36 , F02K3/06 , F05D2240/61 , F05D2240/62 , F16C3/02 , F16D3/06
摘要： A turbofan engine driveshaft comprises, in axial sequence along an axial centreline, a driving portion, and a driven portion. The driving portion has a first end and a second end. The second end of driving portion is connected to the driven portion. The driven portion comprises an annular drum having a radially inwardly facing surface, with the annular drum having a stiffener attached to the radially inwardly facing surface.The driveshaft is supported radially by a bearing assembly at the connection between the driving portion and the driven portion. The driving portion is configured to accommodate a predetermined range of movement of the outer end relative to the inner end.
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公开(公告)号：US20190211871A1
公开(公告)日：2019-07-11
申请号：US15868278
申请日：2018-01-11
CPC分类号： F16C33/585 , F02C7/06 , F02C7/32 , F16C3/02 , F16C19/26 , F16C2240/40 , F16C2240/70 , F16C2326/43 , F16C2361/61 , F16C2361/65 , F16H39/14 , F16H47/04 , H02K7/085 , H02K7/10 , H02K7/1823 , H02K15/0006 , H02K2213/03
摘要： An inner bearing race has a body extending from a first end to a second end. An inner bearing race surface defined between a pair of lands extends radially outwardly of the inner bearing race surface, with one of the lands extending to the second end. The bearing race surface is defined by inner face surfaces of the lands. The inner bearing race surface extends for an axial distance between the inner facing surfaces along a central axis C of the body and defines a first distance. A second distance defines an outer diameter of the inner bearing race surface is defined as a second distance and a ratio of the first distance to the second distance being between 0.20 and 0.30. An integrated drive generator and a method are also disclosed.
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公开(公告)号：US10337225B2
公开(公告)日：2019-07-02
申请号：US15846346
申请日：2017-12-19
申请人： Manfred Bauszus
发明人： Philipp Bentzinger , Milto Benjamin
摘要： A roller for a roller door has a roller bearing surrounded by a roller on the outer circumference and into which a bearing pin is inserted on the inner circumference, which protrudes in the axial direction from the roller bearing. The bearing pin has an inner part of a harder material and a bearing sleeve made of a softer material, wherein the inner part is pressed or screwed into the bearing sleeve. A method for mounting a roller includes injection molding a bearing sleeve made of plastic, inserting and/or screwing an inner part into an inner ring of a roller bearing and the bearing sleeve, and fixing the inner part to the bearing sleeve in a force-locked manner, and applying a roller to an outer ring of the roller bearing.
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公开(公告)号：US20190178345A1
公开(公告)日：2019-06-13
申请号：US16238222
申请日：2019-01-02
申请人： Enplas Corporation
摘要： In a shaft body, a first end in an axial direction of a core part having a crisscross cross section orthogonal to the axial direction is connected to a helical gear via a first connecting part, and the second end in the axial direction of the core part is connected to a worm via a second connecting part. A plurality of first framework parts are formed at regular intervals along a direction of a shaft core in the core part between the first connecting part and the second connecting part. A second framework part extends across the first connecting part, the first framework part, and the core part like a diagonal brace. A third framework part extends across a pair of the first framework parts adjacent to each other and the core part like a diagonal brace. A fourth framework part extends across the second connecting part, the first framework part, and the core part like a diagonal brace.
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公开(公告)号：US10316854B2
公开(公告)日：2019-06-11
申请号：US15446506
申请日：2017-03-01
申请人： ROLLS-ROYCE PLC
发明人： Martin T Bentley
摘要： A shaft has an axis, an outer surface, an inner surface and is arranged to rotate in a first circumferential direction. The shaft comprises a first set of equally circumferentially spaced apertures extending through the shaft between the outer and inner surfaces of the shaft. A second set of equally circumferentially spaced apertures extends through the shaft between the outer and inner surfaces of the shaft. The first and second sets of apertures are arranged in first and second planes arranged perpendicularly to the axis of the shaft. The second plane is spaced axially downstream from the first plane. Each aperture in the second set of apertures is circumferentially displaced in a second circumferential direction from a circumferential mid position between the two apertures in the first set of apertures to reduce the stresses in the shaft.
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公开(公告)号：US20190168281A1
公开(公告)日：2019-06-06
申请号：US16321518
申请日：2017-08-01
摘要： A method may be utilized to produce a steering spindle part configured as a hollow shaft and having a connecting portion at its end. At least a part of the connecting portion includes increased wall thickness relative to a portion of the steering spindle part adjoining the connecting portion. The method may involve providing a circular, hollow cylindrical tube with an inner surface that is smooth in a circumferential direction, providing a circular, hollow cylindrical sleeve with an outer surface that is smooth in a circumferential direction, inserting the sleeve into an end portion of the tube, and jointly deforming the end portion of the tube and the sleeve such that a flow of material occurs. This flow may form positively locking elements on the tube and the sleeve that engage into one another in the circumferential direction and generate positive locking in the circumferential direction.
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