• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    It is a gear for a backlash-free spur gear stage with a hub (1) and a sprocket (2) is described, which is divided along an axis normal division plane into two sub-rings, namely in a hub-fixed collar part (3) and in a coaxially rotatably mounted relative to this ring ring (4) which forms the hub (1) in sections enclosing springs (6), which are connected with their roots (11) integral with the ring collar (4) and with their free, against the hub (1) projecting ends (7 ) are supported on stops (8) of the hub (1). In order to secure advantageous spring loads, it is proposed that the ring collar (4) rotatably mounted on the hub (1) forms at least three springs (6) rotationally symmetrical with respect to the sprocket axis and that the likewise symmetrically arranged stops (8) of the hub (1) Circumferential direction against the roots (11) of the associated springs (6) radially outwardly rising contact surfaces (10) for the free ends (7) of the springs (6).
    公开号:AT511812A4
    申请号:T50001/2011
    申请日:2011-12-02
    公开日:2013-03-15
    发明作者:
    申请人:Miba Sinter Austria Gmbh；
    IPC主号:
    专利说明:

    Printed: 07-12-2011
    1 10 2011/50001
    (38201) II
    The invention relates to a gear for a backlash-free spur gear with a hub and a ring gear, which is divided along an axis normal division plane into two sub-rings, namely in a hub-fixed collar part and in a coaxial with this rotatably mounted ring collar, the hub portions enclosing springs forms, which are integrally connected with their roots with the ring collar and are supported with their free, projecting towards the hub ends of attacks of the hub.
    To ettial ten a backlash-free spur gear for transmitting alternating torques, the use of gears with a divided along an axis normal pitch ring gear is known, the two sub-rings, namely a hub-fixed ring part and a relation to this ring coaxially rotatable ring ring, are resiliently braced against each other so that the engagement of such a split ring gear in a mating the two sub-rings resiliently against the opposite tooth flanks of the mating gear create free of play. In order to achieve the mutual resilient tension of the two Kranzteiie, a hub of the gear enclosing ring spring can be used (EP 1 728 010 B1), which is supported with their ends to a stop of the hub-fixed collar part and the collar ring under a corresponding bias. However, the ring spring is a separate structural part.
    In order to avoid the expense associated with such a separate annular spring, has already been proposed (WO 2008/142131 A1) to divide the annular spring on a plurality of each extending over a peripheral portion springs and integrally form these springs with the ring collar, so that the free ends of the springs 02-12-2011 2 2 10 2011/50001
    Printed: 07-12 * 2011 rotatably mounted within a re-entrant annular shoulder of the hub-fixed crown egg ring ring only on a stop of the hub-fixed collar part must be supported. However, it has been found that the occurring loads acting as unilaterally clamped Biegefedem springs can lead to a local overload of the springs, especially at a comparatively small wall thickness of the annular disk body used for the ring ring.
    The invention is therefore the object of a gear of the type described in such a way that the risk of a local overload of the springs can be largely excluded.
    Starting from a gear for a backlash-free sprocket stage, the invention solves the problem set by the fact that rotatably mounted on the hub ring ring at least three rotationally symmetrical with respect to the sprocket axis arranged springs and that the likewise rotationally symmetrical arranged stops of the hub in the circumferential direction against the roots of the associated springs Having radially outwardly rising ramp surfaces for the free ends of the springs.
    By providing a correspondingly inclined contact surface for the free end of the annular ring formed with the ring springs an additional degree of freedom is obtained for the displacement of the springs when engaging a counter gear in the ring gear of the gear, so that a local overloading of the springs can prevent load balancing. In addition, with a shift of the spring ends along their contact surfaces, the spring travel increases, which opens up the possibility of using softer springs and thus counteracting local overloading of the springs. In addition, the radial components of the spring forces caused by the inclined contact surfaces cause centering of the ring collar relative to the hub-fixed ring part of the ring gear.
    Although the structural design of the stops with the contact surfaces for the free ends of the springs can be different, particularly simple construction conditions arise when distributed over the outer circumference of the hub 3/6 02-12-2011 3 3 102011/50001
    Printed: 07-12-2011 te axial grooves are provided, which form the stops for the free ends of the springs. This means that at least one of the groove walls must be inclined relative to a diameter plane for forming the contact surface in the circumferential direction. The arrangement of axial grooves on the outer circumference of the hub of the gear also provides an advantageous prerequisite for an axial securing of the. Ring ring. For this purpose, the hub can project axially beyond the ring collar, so that at least the adjoining the stop face groove wall of the axial grooves of the respective spring can run away inclined. Due to such a course of the axial grooves caused by the inclined groove wall following the contact surface on the free end of the springs force exerted against the hub-fixed rim part directed, axial force component that presses the ring collar on its feathers to the hub fixed ring part of the ring gear and at repealing loads against the hub-fixed rim part leads back.
    In the drawing, the subject invention is shown, for example. Show it
    1 shows a gear according to the invention for a backlash-free spur gear in a partially torn view of the side with the ring collar,
    2 shows this gear in a plan view perpendicular to the wheel axle without ring collar, Fig. 3 the hub-side stop for the free end of a spring of the ring ring in a section along the line III-III of FIG. 2 on a larger scale and
    4 a of FIG. 3 corresponding section of the hub in a section along the line IV-IV of FIG. 2nd
    The gear for a backlash-free spur gear has, according to the illustrated embodiment, a hub 1 and a ring gear 2, which is composed of a hub-fixed ring part 3 and a ring ring 4, which is rotatably mounted on bearing lugs 5 on the hub 1. As can be seen from FIG. 1, springs 6 which extend over a peripheral portion of the hub 1 are integrally formed on the ring-shaped ring collar 4, which are arranged rotationally symmetrically with respect to the sprocket axis. The free ends 7 of these springs 6 4/6 02-12-2011
    Printed: 07-12-2011 E014.1 10 2011/50001 4 are supported against the hub 1 and are supported on stops 8, which are formed by axial grooves 9 on the outer circumference of the hub 1. These likewise rotationally symmetrical with respect to the sprocket axis arranged stops 8 each form a contact surface 10 for the free ends 7 of the springs 6, as shown in particular in FIGS. 3 and 4 can be removed. The contact surfaces 10, which are formed by a wall of the axial grooves 9, rise radially outwardly against the roots 11 (FIG. 1) of the springs 6, so that upon mutual rotation of the collar ring 4 relative to the hub-fixed collar part 3, the free ends 7 of Springs 6 accumulate on the contact surfaces 10 and thus increase the displacement resistance accordingly, because yes, the springs 6 must be additionally tensioned. The conditional by the contact surfaces 10 radial displacement of the free spring ends 7 allows an advantageous for the spring load spring characteristic, without affecting the spring loading of the ring ring 4 relative to the hub-fixed ring part 3.
    2, the axial grooves 9 are inclined away from the respective spring 6, wherein an axial force component can be exerted on the free end 7 of the springs 6 in the direction of the hub-fixed rim part 3 due to the inclination of the groove wall 12 adjoining the contact surface 10. when the free end 7 of the springs 6 runs on this inclined groove wall 12. This means a return of the ring collar 4, if there is a tendency due to a corresponding load, that the ring ring 4 lifts from the hub-fixed ring part 3. 5/6 02-12-2011
    权利要求:
    Claims (3)
    [1]
    Patent Attorneys Dipl.-Ing, Helmut Hübscher Dipl., Ing. Karl Winfried Hellmich Spittelwiese 7, A 4020 Linz (36201) 11 Claims: 1. Gear for a backlash-free spur gear with a hub (1) and a sprocket (2), which is divided into two sub-rings along an axis-normal division plane, namely in a hub-fixed Ring part (3) and in this opposite coaxially rotatably mounted ring collar (4) which forms the hub (1) partially enclosing springs (6), which are connected with their roots (11) integral with the ring collar (4) and with their free, against the hub (1) projecting ends (7) on stops (8) of the hub (1), characterized in that the rotatably mounted on the hub (1) ring gear (4) arranged at least three rotationally symmetrical with respect to the sprocket axis Feathers (6) and that the likewise rotationally symmetrical arranged stops (8) of the hub (1) in the circumferential direction against the roots (11) of the associated springs (6) radially outwardly rising contact surfaces (10) f for the free ends (7) of the springs (6).
    [2]
    2. Gear according to claim 1, characterized in that over the outer circumference of the hub (1) distributed axial grooves (9) form the stops (8) for the free ends (7) of the springs (6).
    [3]
    3. Gear according to claim 2, characterized in that the hub (1) projects axially beyond the ring collar (4) and that at least the groove surface (10) adjoining groove wall (12) of the axial grooves (9) of the respective spring (6 ) runs away. Linz, December 2, 2011 Miba Sinter Austria GmbH by:
    类似技术:
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    同族专利:
    公开号 | 公开日
    BR112014012875A2|2017-06-13|
    WO2013078489A1|2013-06-06|
    EP2786046A1|2014-10-08|
    CN103988000B|2016-11-02|
    CN103988000A|2014-08-13|
    US9506550B2|2016-11-29|
    EP2786046B1|2015-07-15|
    US20140216190A1|2014-08-07|
    AT511812B1|2013-03-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US7752937B1|2009-12-21|2010-07-13|Winzeler Gear, Inc|Anti-backlash gear|US20150047448A1|2013-08-16|2015-02-19|Johnson Electric S.A.|Gear|JPS6263268A|1985-09-12|1987-03-19|Honda Motor Co Ltd|Gear drive device|
    US5979259A|1997-05-08|1999-11-09|Cummins Engine Company, Inc.|Gear train assembly including a scissor gear|
    EP1555584A1|2004-01-13|2005-07-20|Rolex S.A.|Toothed wheel for the removal of play, gear, and the use of this gear|
    AT413748B|2004-03-22|2006-05-15|Miba Sinter Austria Gmbh|GEAR FOR A GAME-FREE HEAD WHEEL STAGE|
    JP4053528B2|2004-09-07|2008-02-27|本田技研工業株式会社|Scissor gear|
    WO2008142131A2|2007-05-21|2008-11-27|Vcst Industrial Products|Split gear for avoiding backlash when engaging a mating gear|
    DE102009015947B4|2009-03-27|2013-06-27|Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg|Rattle-free component pairing|
    CN101598212B|2009-07-06|2011-04-20|西华大学|Mechanism for automatically eliminating gear backlash|AT514590B1|2014-02-13|2015-02-15|Metaldyne Internat Deutschland Gmbh|gear|
    JP6347122B2|2014-03-11|2018-06-27|日本精工株式会社|Toroidal continuously variable transmission|
    DE102014208268B3|2014-04-30|2015-05-13|Magna Powertrain Ag & Co. Kg|Gear for a play-free gear stage and hereby equipped gear stage|
    KR101646120B1|2014-12-03|2016-08-05|현대자동차 주식회사|Motor coupling device|
    AT517424B1|2015-06-25|2019-09-15|Miba Sinter Austria Gmbh|Device for releasing play of meshing gears of a gear drive|
    NL2015189B1|2015-07-18|2017-02-07|Vcst Ind Products Bvba|Scissor gear assembly.|
    AT517484B1|2015-10-06|2017-02-15|Metaldyne Int Deutschland Gmbh|gearing|
    US10767732B2|2017-08-22|2020-09-08|Ecolab Usa Inc.|Eccentric gear drive with reduced backlash|
    AT520531B1|2018-04-24|2019-05-15|Miba Sinter Austria Gmbh|gear|
    法律状态:
    2020-08-15| MM01| Lapse because of not paying annual fees|Effective date: 20191202 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50001/2011A|AT511812B1|2011-12-02|2011-12-02|GEAR FOR A GAME-FREE HEAD WHEEL STAGE|ATA50001/2011A| AT511812B1|2011-12-02|2011-12-02|GEAR FOR A GAME-FREE HEAD WHEEL STAGE|
    CN201280057496.5A| CN103988000B|2011-12-02|2012-09-07|Gear for gapless spur gear level|
    US14/342,596| US9506550B2|2011-12-02|2012-09-07|Gear for a spur gear stage without play|
    PCT/AT2012/050134| WO2013078489A1|2011-12-02|2012-09-07|Gear for a spur gear stage without play|
    BR112014012875A| BR112014012875A2|2011-12-02|2012-09-07|clearance for a clearance-free straight sprocket stage|
    EP12769869.4A| EP2786046B1|2011-12-02|2012-09-07|Gear for a spur gear stage without play|
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