CN102884327B - 偏心轴承 - Google Patents
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- CN102884327B CN102884327B CN201180022236.XA CN201180022236A CN102884327B CN 102884327 B CN102884327 B CN 102884327B CN 201180022236 A CN201180022236 A CN 201180022236A CN 102884327 B CN102884327 B CN 102884327B
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- 238000005096 rolling process Methods 0.000 claims abstract description 53
- 230000033001 locomotion Effects 0.000 claims abstract description 18
- 239000003792 electrolyte Substances 0.000 description 3
- 241000272470 Circus Species 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/10—Bearings, parts of which are eccentrically adjustable with respect to each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/22—Cranks; Eccentrics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/4694—Single-split roller or needle cages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/54—Cages for rollers or needles made from wire, strips, or sheet metal
- F16C33/542—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal
- F16C33/543—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from a single part
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
- F16C33/3887—Details of individual pockets, e.g. shape or ball retaining means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Rolling Contact Bearings (AREA)
Abstract
本发明涉及一种用于车辆制动***的电液式活塞泵设备的偏心轴承(1)。本发明设有能够绕其轴线(6)转动驱动的轴(2)、相对于轴(2)偏心的轴承环(3)以及在轴(2)和轴承环(3)之间的、对应于轴(2)和轴承环(3)之间的间隙(4)的不同宽度而具有不同直径的滚动体(5)。在轴(2)转动驱动时,轴承环(3)的偏心率以轴(2)的一半转动速度绕该轴旋转并且驱动在外侧贴靠在轴承环(3)上的泵活塞(9)做往复直线运动。滚动体保持架(7)在直径最大的两个滚动体(5)之间开口,该滚动体保持架在朝轴(2)和轴承环(3)之间的间隙(4)变窄的方向上对滚动体(5)施加负载并由此确保当滚动体被驱动时滚动体(5)在轴(2)上绕转。
Description
技术领域
本发明涉及一种具有根据独立权利要求1的前序部分所述特征的偏心轴承。依据本发明的偏心轴承特别地设置用于机动车辆的液压制动***的电液式活塞泵设备。这类泵设备被用于产生液压制动压力以在防滑调节制动***和/或助力制动***中进行制动操纵。
背景技术
已知的偏心轴承具有偏心轴,所述偏心轴一体式地或者以其他的方式刚性且偏心地安装在电机的电机轴上或者在可被电机驱动的传动机构的输出轴上。在偏心轴上,设有滚动轴承,该滚动轴承具有同心地包围偏心轴的轴承环及滚动体,所述滚动体围绕轴以通常但非强制的等距的方式设置在位于偏心轴和轴承环之间的间隙中。滚动体通常是滚子或滚针,然而也可以是其他的滚动体,例如球体。轴承环可以被理解为外环,可以设有内环,例如被压到偏心轴上。然而内环不是必须的,滚动体也可以直接在偏心轴上滚动。泵活塞设备的一个或多个泵活塞通过其前端部在外侧贴靠在轴承环上。所述泵活塞例如通过弹簧在设备中从外侧被压在轴承环上。
在转动驱动时,偏心轴由于其偏心率而在圆形轨道上运动并且由此绕其自身转动。由于偏心轴在圆形轨道上的运动,轴承环也在一个圆形轨道上或者说在同一圆形轨道上运动,并且由此驱动在外部贴靠在其上的泵活塞做所希望的往复直线运动,以通过交替的抽吸和挤压输送制动液或者常见的流体,如在活塞泵中已知的那样。由于其滚动轴承,轴承环不与偏心轴一起转动。
在用于机动车辆液压制动***的电液式活塞泵设备中,偏心轴承将电机或传动机构的输出轴的转动运动转化为往复直线运动以驱动泵活塞。
发明内容
具有权利要求1的特征的依据本发明的偏心轴承具有可转动驱动的轴,在所述轴上设有滚动轴承,所述滚动轴承具有围绕所述轴的轴承环,以及所述滚动轴承具有围绕所述轴设置在位于轴和轴承环之间的间隙中的多个滚动体,其中所述滚动体可以等距布置,但不是必须的。滚动体保持架将所述滚动体以其相对彼此的间距进行保持,其中,所述滚动体的这些间距可以是相同的或不同的。与已知的偏心轴承不同的是,依据本发明的偏心轴承的轴与其转动轴线同心地布置,同样地可想到且本发明并不排除的是,所述轴相对于其转动轴线是偏心的。作为对轴的偏心率的替代或者必要时的附加,轴承环相对于轴偏心,并且滚动体对应于由于轴承环相对于轴的偏心率引起的在轴和轴承环之间的不同间隙宽度而具有不同直径。这些滚动体的直径与在轴承环和轴之间的、在相应滚动体所在圆周位置上的间隙的宽度一样大。
如由滚动轴承已知的那样,在轴转动驱动时,滚动体在轴上和轴承环中滚动,并且绕轴旋转。在此,直径大的滚动体将轴承环从轴推开,并且在直径小的滚动体所在的相对侧上轴承环靠近所述轴。可以说,变化的间隙宽度随着滚动体一起绕转动驱动的轴旋转,也就是说,最宽的、最窄的和其他各个间隙宽度与滚动体一起绕轴旋转。轴承环以相对于轴的一个偏心率在绕轴的圆形轨道上运动。轴的转动运动被转化成在外部贴靠在轴承环上的一个或多个泵活塞的往复直线运动。滚动体以比轴的转动速度更小的绕转速度绕轴旋转,轴承环在圆形轨道上运动的速度也同样地更小。依据本发明的偏心轴承能够减速(Geschwindigkeitsuntersetzung),轴承环的偏心率的绕转速度在抗扭转的轴承环中比轴的转动速度更慢。减速具有下列优点,即,可实现以更高转速进行驱动,这在功率相同的情况下能采用更小更轻的电机。
依据本发明的偏心轴承的另一优点是,它们的结构更简单和成本更低。
依据本发明的偏心轴承特别地设置用于已述的应用,即用于在机动车辆的液压制动***中产生制动压力的电液式活塞泵设备中,在其中该偏心轴承将电机的转动运动转化为往复直线运动以驱动泵活塞。然而本发明并不仅限于这种应用,而是还涉及与这种偏心轴承不同的偏心轴承。
从属权利要求在内容上具有在权利要求1中给出的发明的有利的设计和改进方案。
优选的是,所述滚动体保持架是弹性的(权利要求2),其将滚动体向内朝向轴、向外朝向轴承环和/或沿周向施加负载。权利要求4规定,所述滚动体保持架在朝所述轴和轴承环之间的间隙变窄的方向上对所述滚动体施加负载。本发明的这种设计方案具有的优点是,当在滚动体和轴或者和轴承环之间具有间隙时,滚动体以一个预应力被朝向轴、轴承环施加负载,或者在朝向变窄的间隙被施加负载时中既朝向轴又朝向轴承环被施加负载。即使预应力较小,本发明的这种设计方案也确保了,当轴(或轴承环)被转动驱动时,滚动体在轴上并且在轴承环中滚动并由此类似地在行星齿轮传动机构的行星齿轮中绕轴旋转。滚动体绕轴的旋转确保了所希望的轴承环在绕轴的圆形轨道上的运动。
为了弹性的构造,权利要求5规定,所述滚动体保持架在一个周向位置开口。滚动体保持架的这种设计方案与例如锁紧涨圈或锁紧环的卡环类似。滚动体保持架的在一处开口的设计还简化了依据本发明的偏心轴承的组装。根据权利要求6,所述滚动体保持架在直径最大的两个滚动体之间开口,并且滚动体在两个周向方向上朝沿轴和轴承环之间的间隙变窄的方向施加负载。如果偏心轴仅具有一个直径最大的滚动体,则所述滚动体保持架在该滚动体和一个相邻的滚动体之间开口。
附图说明
下面将借助于在附图中示出的实施例对本发明进行详细阐述。唯一的附图以正视图示出了依据本发明的偏心轴承。
具体实施方式
在图中所示的依据本发明的偏心轴承1具有被轴承环3围绕的轴2。在位于该轴承环3和轴2之间的间隙4中设有滚子5作为环绕轴2的滚动体。轴承环3和滚子5可以在必要时还与轴2一起被理解为滚动轴承。轴2可通过电机绕该轴的轴线6(同时也是该轴的转动轴线)被转动地驱动,所述电机由于位于图示平面的后面而不可见。轴2不具有偏心率。其可以例如是电机的电机轴的端部。
轴承环3相对于轴2是偏心的,轴承环3与轴2之间的间隙4的宽度沿周向变化。从位于附图右上方的最大间隙宽度开始,间隙宽度沿两个周向方向减小到最小间隙宽度,所述最小间隙宽度与最大间隙宽度对置,即位于附图的左下方。
构成滚动体的滚子5相应于不同的间隙宽度而具有不同的直径。滚子5的直径分别与轴承环3与轴2之间的在相应的滚子5所处位置上的间隙4的宽度一样大。
在轴2被转动驱动的情况下,滚子5在轴2的圆周上滚动,并且在此以比轴2的转动速度更小的绕转速度绕转。在轴承环3和轴2之间的间隙4的最大间隙宽度与直径最大的两个滚子5一起绕转。同样地,在轴承环3和轴2之间的间隙4的最小间隙宽度与直径最小的两个滚子5一起绕转。换句话说,在轴2的转动驱动期间,轴承环3相对于轴2的偏心率绕该轴2旋转,其中当轴承环3不共同转动时,偏心率的绕转速度小于轴2的转动速度。轴承环3在绕轴2的轴线6(也是该轴的转动轴线)的圆形轨道上运动,其中轴承环3的圆形运动的速度小于轴2的转动速度,因此出现减速。
滚子5被容纳在滚动体保持架7中,该滚动体保持架将这些滚子以它们相互间的间距进行保持。滚动体保持架7在直径最大的两个滚子5之间开口,并且以这种方式被构造成弹性的,类似如作为机械制造中的锁紧涨圈或锁紧环已知的卡环。该滚动体保持架7具有预应力,该滚动体保持架沿周向对直径最大的两个滚子5朝远离彼此的方向施加负载,如箭头8所示。滚动体保持架7通过其预应力沿两个周向朝向轴2和轴承环3之间的间隙4变得更窄的方向对滚子5施加负载。滚动体保持架7通过其预应力朝向轴2和轴承环3预紧,从而使滚子5贴靠在轴2和轴承环3上,并且在轴2转动驱动时在轴2上并在轴承环3中滚动,且以轴2的转动速度一半的速度绕轴2旋转。此外,滚动体保持架7在一处开口的弹性的构造简化了偏心轴承1的组装。
滚子5被可转动地容纳在滚动体保持架7的矩形空出部(所谓的袋部)中。这种滚动体保持架7是滚动轴承中已知的,该滚动体保持架也被称作轴承保持架或者简称为保持架。在滚子轴承中,该滚动体保持架也被称为滚子保持架,在球轴承中,被称为球保持架。
在轴承环3的外部,泵活塞9以其前端部贴靠在该轴承环3上。附图中仅示出了该泵活塞9的前端部,该泵活塞相对于轴2径向地布置,并且被未示出的活塞弹簧从外侧朝向轴承环3施压。活塞泵9以沿轴向移动的方式,即相对于轴2的径向移动的方式容纳在泵壳体11的泵孔10中。偏心轴承1在两个于此实施例中彼此相对的(即以对置方式布置的)泵活塞9之间位于泵壳体11的圆柱形偏心腔12中。通过轴2的转动驱动,轴承环3进行运动,但不与轴2一起转动,而是以比轴2的转动速度更小的速度在绕轴2的轴线6和转动轴线的圆形轨道上运动。轴承环3的圆形运动驱动泵活塞9进行往复直线运动。由此,偏心轴承1将轴2的转动运动转变为往复直线运动以驱动泵活塞9。泵壳体11是所谓的液压块的组成部分,在该液压块中,除了泵活塞9,还设有未示出的液压部件,如用于机动车辆液压制动***的防滑调节装置的电磁阀,并且这些液压部件液压地相互连接。这类液压块本身是已知的,在此不再详细阐述。
Claims (3)
1.一种用于将转动运动转化为往复直线运动的偏心轴承,所述偏心轴承具有能够转动驱动的轴(2)、围绕所述轴(2)的轴承环(3)以及多个滚动体(5),所述滚动体绕所述轴(2)布置在位于所述轴(2)和轴承环(3)之间的间隙(4)中,其特征在于,所述轴承环(3)相对于所述轴(2)是偏心的,所述滚动体(5)具有与在所述轴(2)和轴承环(3)之间的不同间隙宽度相对应的不同直径,以及所述偏心轴承(1)具有滚动体保持架(7),其中所述滚动体保持架(7)在周向上是弹性的,并且所述滚动体保持架(7)在朝所述轴(2)和轴承环(3)之间的间隙(4)变窄的方向上对所述滚动体(5)弹性地施加负载。
2.按照权利要求1所述的偏心轴承,其特征在于,所述滚动体保持架(7)在一个周向位置开口。
3.按照权利要求1所述的偏心轴承,其特征在于,所述滚动体保持架(7)在直径最大的滚动体(5)之间开口。
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DE102010028581A DE102010028581A1 (de) | 2010-05-05 | 2010-05-05 | Exzenterlager |
DE102010028581.1 | 2010-05-05 | ||
PCT/EP2011/053582 WO2011138073A1 (de) | 2010-05-05 | 2011-03-10 | Exzenterlager |
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CN102884327A CN102884327A (zh) | 2013-01-16 |
CN102884327B true CN102884327B (zh) | 2015-05-20 |
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US (1) | US8950942B2 (zh) |
EP (1) | EP2567111A1 (zh) |
JP (1) | JP2013525710A (zh) |
CN (1) | CN102884327B (zh) |
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US9175535B2 (en) * | 2011-09-29 | 2015-11-03 | Coil Solutions, Inc. | Propulsion generator and method |
DE102012210704A1 (de) | 2012-06-25 | 2014-01-02 | Robert Bosch Gmbh | Exzenterwälzlager |
CN104930061A (zh) * | 2015-05-28 | 2015-09-23 | 江苏万达特种轴承有限公司 | 一种表面镀镍环状开口式回转支承保持架及其加工工艺 |
CN105156481B (zh) * | 2015-09-07 | 2018-02-16 | 大连理工大学 | 一种精密定位用偏心密珠轴套 |
DE102018110925A1 (de) * | 2018-05-07 | 2019-11-07 | Liebherr-Components Biberach Gmbh | Stellantrieb zum Verstellen eines Großwälzlagers |
CN113202853A (zh) * | 2021-05-25 | 2021-08-03 | 钟永先 | 具有减速功能的偏心轴承及有其的减速机 |
CN114001095B (zh) * | 2021-11-09 | 2022-10-21 | 华南理工大学 | 一种能支撑轴做行星运动的复合滚动轴承 |
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- 2010-05-05 DE DE102010028581A patent/DE102010028581A1/de active Pending
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2011
- 2011-03-10 EP EP11709092A patent/EP2567111A1/de not_active Withdrawn
- 2011-03-10 CN CN201180022236.XA patent/CN102884327B/zh not_active Expired - Fee Related
- 2011-03-10 JP JP2013508407A patent/JP2013525710A/ja not_active Withdrawn
- 2011-03-10 US US13/695,662 patent/US8950942B2/en not_active Expired - Fee Related
- 2011-03-10 WO PCT/EP2011/053582 patent/WO2011138073A1/de active Application Filing
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Publication number | Publication date |
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DE102010028581A1 (de) | 2011-11-10 |
EP2567111A1 (de) | 2013-03-13 |
US8950942B2 (en) | 2015-02-10 |
JP2013525710A (ja) | 2013-06-20 |
US20130195390A1 (en) | 2013-08-01 |
CN102884327A (zh) | 2013-01-16 |
WO2011138073A1 (de) | 2011-11-10 |
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