Laminated Element Or Plural Elements Abutting Or Spaced Along Axis Of Rotation Patents (Class 464/96)
  • Patent number: 8033919
    Abstract: An elastic shaft coupling has a drive-side interface and an output-side mechanical interface. Both interfaces are intended in each case for connecting the shaft coupling to an adjacent machine element. The shaft coupling has at least two elastic rubber elements which are connected behind one another between the drive-side and the output-side interfaces and the axial material thickness of which increases in each case at a growing radial spacing from the center axis of the shaft coupling. To reduce the amount of rubber of the shaft coupling with retention of its elastic properties, the respective rubber elements are of non-uniform configuration with regard to their torsional rigidity and to be precise are so non-uniform that the torsional rigidity of one of the two rubber elements is always at least one and a half times as great as the torsional rigidity of the other rubber element.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: October 11, 2011
    Assignee: Hackforth GmbH
    Inventor: John Baikie
  • Publication number: 20090264207
    Abstract: The invention relates to an elastic shaft coupling (1) having a drive-side (2) and having an output-side mechanical interface (15), both interfaces (2, 15) being intended in each case for connecting the shaft coupling (1) to an adjacent machine element, wherein the shaft coupling (1) has at least two elastic rubber elements (4, 9) which are connected behind one another between the drive-side (2) and the output-side interfaces (15) and the axial material thickness (S1, S2) of which increases in each case at a growing radial spacing (R1, R2) from the centre axis (10) of the shaft coupling (1). The present invention is based on the object of reducing the amount of rubber of the shaft coupling with retention of its elastic properties.
    Type: Application
    Filed: April 5, 2007
    Publication date: October 22, 2009
    Inventor: John Baikie
  • Publication number: 20040222716
    Abstract: A turbomachine has at least one rotor disk that is attached at an overhung end of a mounted first shaft, and an electric rotor of an electric machine that is connected with the end of the first shaft that lies opposite the rotor disk, by way of a coupling. The electric rotor is arranged between the first shaft and a second shaft, mounted so as to rotate, which is oriented in alignment with the first shaft, and is also connected with the electric rotor by way of a coupling. The electric rotor is arranged between the couplings as a coupling intermediate piece, without any mounting of its own, and has coupling elements that work together with coupling elements on the shaft ends, without radial play.
    Type: Application
    Filed: March 23, 2004
    Publication date: November 11, 2004
    Inventor: Werner Bosen
  • Patent number: 6325723
    Abstract: A radially soft drive coupling for reducing vibration transmitted across the coupling in certain marine drive applications. The elastomeric elements interconnecting the hub and housing are precompressed by an amount which is at least in the range of 15-20% to produce significant radial and torsional softening of the spring rate of the elastomer. The radial spring rate whose magnitude expressed in lb/in is in the range of between one half and three times the magnitude of said design torque level expressed in lb-in.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: December 4, 2001
    Assignee: Lord Corporation
    Inventor: Thomas A. David
  • Patent number: 6234903
    Abstract: A shaft coupling (1) has at least one elastic torque transmission element (4) in a single piece to which connecting elements (3) are fixed at the driving and driven sides. In order to increase the stressability due to the thermal stresses on the elastic transmission elements (4) and thus to ensure higher power densities with smaller volumes, at least one cooling element (6) made of a good heat-conducting material is non-detachably embedded in the transmission element (4). The cooling element (6) extends through a core zone of maximum heat generation and through a relatively cooler outer zone of the transmission element (4).
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: May 22, 2001
    Assignee: Hackforth GmbH & Co. KG
    Inventors: J├╝rgen Walter, Ulrich Falz
  • Patent number: 5545090
    Abstract: The shaft coupling has a pair of parallel sheetmetal membranes which are fixed together at their outer periphery and at their inner peripheries and are connected by respective sets of connectors to a hub and a formation which can be connected to another shaft. The connectors can include clamping bushes which have their heads or shoulders between the membrane and are engaged by clamping screws extending into the bushes from the exterior so that between the membranes, only the thickness of a shoulder is provided along the inner periphery. A highly compact shaft coupling can be obtained in terms of axial dimensions.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: August 13, 1996
    Assignee: Centa-Antriebe Kirschey GmbH
    Inventor: Gerhard Kirschey
  • Patent number: 5517375
    Abstract: An assembly that couples a spindle shaft to the cover of a hard disk drive. The disk drive has a cover that is attached to a baseplate. Extending from the baseplate is a spindle shaft which supports a hub and the magnetic disk of the drive unit. The spindle shaft has a plurality of protrusions which are embedded into a metal shim. The metal shim is coupled to the cover by a sheet of elastomeric material. The metal shim and elastomeric sheet secure the end of the spindle shaft to the cover of the assembly.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: May 14, 1996
    Assignee: Maxtor Corporation
    Inventors: F. Eugene Dion, Kris Buchanan
  • Patent number: 5476421
    Abstract: A shock absorbing assembly for a drilling machine utilizing a down hole hammer having a driver member for receiving input forces, a driven member for transmitting forces from the driver member to an attached drill string, and a resilient member which is placed under tension and elongated when downward forces are applied. The resilient member under tension receives and dissipates shocks and vibrations.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: December 19, 1995
    Assignee: Duramax, Inc.
    Inventors: Richard E. Moore, John T. Work
  • Patent number: 5382194
    Abstract: A yieldable coupling wherein an externally toothed hub which can transmit torque to a rotary driven unit mates with an internally toothed sleeve forming part of a flange further having a support connectable to the output element of a rotary driving unit and an elastomeric connector between the support and the sleeve. The connector can include one or more rubber rings which are vulcanized to the adjacent components of the flange. A needle bearing or a friction bearing can be interposed between the hub and the connector.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: January 17, 1995
    Assignee: KTR Kupplungstechnik GmbH
    Inventors: Helmut Scherner, Reinhard Wibbeling, Josef Schurhorster
  • Patent number: 5238454
    Abstract: A one-piece flexible coupling is integrally molded from plastic. A plurality of discs are connected by posts over small circumferential extents with slots formed over the remainder of the circumferential extent of the discs. The posts between adjacent discs are offset by 90.degree. from the previous and subsequent discs. Shafts are connected at both ends of the flexible coupling, and the flexible coupling transmit rotation between the shafts, even when they are at non-parallel angles relative to each other.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: August 24, 1993
    Assignee: Build-A-Mold Limited
    Inventor: Horst Schmidt
  • Patent number: 5066263
    Abstract: A resilient shaft coupling, especially for Diesel engine drives, essentially comprises two rigid coupling parts such as a hub on the drive side of the shaft coupling and a flange ring on the end of the drive shaft opposite to the drive side, whereby the hub and the flange ring are connected in an elastic rotating manner via a series of identical elastic annular connecting links. Radial supports for the elastic annular connecting links are provided at one of the rigid coupling parts in order to avoid improperly restraint masses that cause imbalance of the shaft due to centrifugal forces. In order to improve the angular movability of the resilient shaft coupling, the radial supports are provided with angular movability. This is achieved by a metallic ring membrane which provides angular movability between two axially neighboring annular connecting links, whereby the ring membrane is clamped between the connecting rims of the annular connecting links.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: November 19, 1991
    Assignee: Hackforth GmbH & Co. KG
    Inventors: Manfred Lunke, Ulrich Falz, Jurgen Walter
  • Patent number: 4934978
    Abstract: A slitting cutter with at least one drive unit which, by a cutting wheel gear, drives the driven shaft of the cutting wheels equipped with cutting teeth. Although optionally hitherto a clutch has been provided between the driving unit and the actual cutting wheel gear, abrupt blocking of jamming processes on the cutting teeth seriously stressed the cutting wheel gear. This is now inventively prevented in that a rotation-elastic damping member is provided gradually between the driven shaft and the particular cutting wheel.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: June 19, 1990
    Assignee: Bauer Spezialtiefbau GmbH
    Inventors: Maximilain Arzberger, Johann Haberer
  • Patent number: 4929115
    Abstract: A resilient shaft coupling in which a rigid primary and a rigid secondary coupling member are connected together by at least one resilient annular assembly of a multi-part construction that is composed of a number of ring segments that are identical and run circumferentially in close succession. Each segment is composed of axially outer metallic segment plates and an inner rubber body that has a trapezoidal cross-sectional shape with a radially outwardly increasing width in an axial plane. In order to obtain higher thermal stressability of the shaft coupling, at least one window is provided in the rubber body of each segment. The ends of the window end in the vicinity of the radial end faces of the segment. Openings are also provided in the two segment plates of each segment and are congruent with the window in the rubber body.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: May 29, 1990
    Assignee: Hackforth GmbH & Co., KG
    Inventors: Manfred Lunke, Ulrich Falz, Jurgen Walter
  • Patent number: 4743219
    Abstract: A deformable drive shaft includes drive side and driven side connections and a flexible intermediate section interconnecting the connections, the flexible intermediate section being formed of an alternating sequence of disc-shaped rigid segments and disc-shaped flexible segments, the formed rigid segments having surfaces with complementary funnel-shaped projections and funnel-shaped depressions formed thereon, the funnel-shaped projections of a given formed rigid segment extending through an adjacent flexible segment into adjacent respective funnel-shaped depressions of the next formed rigid segment.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: May 10, 1988
    Assignee: Metzeler Kautschuk GmbH
    Inventors: Carl Heynemann, Otto Richter
  • Patent number: 4708514
    Abstract: A highly-resilient shaft coupling includes a hub for rotating about a longitudinal axis, a drive ring, a resilient ring assembly including two axially-continuous circular ring parts bearing radially on the hub. Each ring part includes elastomeric ring sectors and ring sector plates adhered to opposite axial ends of each elastomeric ring sector. An elastomeric ring sector of one circular ring part spans parts of two elastomeric ring sectors of the other ring part. A drive ring drivingly interconnects the hub and the resilient ring assembly at one axial end thereof. Fastener means secure together the ring sector plates at one axial end of each of the two circular ring parts, in a confronting relation. Passageways for cooling air extend between the ring sectors which are secure together. A coupling part is secured to one of the ring sectors at the end which is opposite the drive ring.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: November 24, 1987
    Assignee: Hackforth G.m.b.H. & Co. KG
    Inventors: Jurgen Walter, Ulrich Falz, Manfred Lunke
  • Patent number: 4664642
    Abstract: The resilient shaft coupling for connection of two coupling parts comprises at least two coupling members resilient under application of an applied torque, of which at least one is mountable on a first coupling part and at least one of the other coupling members is mountable on another one of the coupling parts, wherein the coupling members are mounted on a common connecting piece freely movable relative to the coupling parts. To provide a coupling in which the coupling parts are free from axial force loads, the outer surfaces of the coupling members facing in the same axial direction are connected to the coupling parts. Each of these outer surfaces lie substantially in a radial plane of the axle coupling, while the sides of the coupling members facing in the opposite axial direction from the outer surfaces of the coupling members connected to the coupling parts are coupled to the connecting piece.
    Type: Grant
    Filed: October 30, 1985
    Date of Patent: May 12, 1987
    Assignee: Centa Antriebe Dipl. Ing. G. Kirschey GmbH & Co. KG
    Inventor: Gerhard Kirschey
  • Patent number: 4664037
    Abstract: A double coupling comprising two flexible couplings are connected to each other through an intermediate hollow shaft and have outer parts on each and each with a hub and radially extending arms between which rubber blocks shaped as ring segments are inserted in a prestressed state. The rubber blocks each comprise a central, radially inwardly narrowing wedge to which two rubber members carrying plates on their free surfaces are symmetrically vulcanized on either side. The wedges are connected to corresponding claws of the intermediate shaft. The wedge and claws, along with the intermediate shaft serves as a common hub portion and form an inner part of the flexible coupling. One hub is secured to a solid shaft and the other hub is secured to a hollow shaft. The solid shaft extends through the hollow shaft and they move relative to each other, even in misaligned positions. As compared to similar prior art couplings for transmitting comparable power, the weight of such a doubling coupling is reduced.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: May 12, 1987
    Assignee: Thyssen Industrie AG
    Inventor: Ernst Piepenbreier
  • Patent number: 4582501
    Abstract: A vibration and noise isolating coupling (11) for a rotating drive train uses a plurality of vibration and noise isolating modules (17) which are arranged circumferentially about the coupling (11) in two rows (21, 22). Each module consists of a plurality of rubber sheets separated by laminations. A pair of drive discs (13, 14) sandwich the modules (17), and a driven disc (15) is located between the two rows (21, 22) of the module (17). Force transmitted from the drive discs (13, 14) is transmitted through the driven disc (15) via the modules 17. The drive discs (13, 14) are compressed toward one another, thereby compressing the module (17) and consequently the rubber sheets within the module (17).The arrangement provides the advantage of resiliently transferring rotating force to rubber components while maintaining the rubber in a compressed state and maintaining a power-transfer capability even if the rubber components are fully deteriorated.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: April 15, 1986
    Assignee: Allied Corporation
    Inventor: Charles B. Gibbons
  • Patent number: 4563166
    Abstract: An extra-resilient shaft coupling. Two rigid parts are interconnected by a resilient intermediate member which transmits torque. The intermediate member includes two external metal ring members which are in the form of one or more peripheral parts and are interconnected by an elastomeric material, preferably vulcanized in situ. To avoid over-stressing the elastomeric material at the regions adjacent to the metal parts, the ring members, near the outer peripheral surface of the rubber element, are provided with an axially projecting annular shoulder which abuts an edge region of the rubber element. The inner peripheral edge of the ring members has an approximately V cross-section, the point of the V being rounded and the outer side surface being recessed relative to the outer surface of the ring member to thus form a peripheral recess for receiving a lip formed on the rubber element.
    Type: Grant
    Filed: March 23, 1984
    Date of Patent: January 7, 1986
    Assignee: Hackforth GmbH & Co. KG
    Inventors: Jurgen Walter, Ulrich Falz, Manfred Lunke
  • Patent number: 4380442
    Abstract: A rotary flexible coupling has two interleaved sets of input and output driver blocks connected to input and output flanges, respectively. First and second tires of inelastic material are spaced radially inwardly and radially outwardly from the blocks. Each block is connected to each tire by a cylindrical segment of a cylindrical layer of elastomeric material and torque is transmitted from the input blocks to the output blocks via the elastomeric layers and the tires.
    Type: Grant
    Filed: February 20, 1981
    Date of Patent: April 19, 1983
    Assignee: Firma Carl Freudenberg
    Inventor: Friedrich-Wilhelm Amsel