CN103282684B - 隔离断开器 - Google Patents

隔离断开器 Download PDF

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CN103282684B
CN103282684B CN201280004032.8A CN201280004032A CN103282684B CN 103282684 B CN103282684 B CN 103282684B CN 201280004032 A CN201280004032 A CN 201280004032A CN 103282684 B CN103282684 B CN 103282684B
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hub
belt pulley
pulley
overrunning clutch
inertia member
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CN103282684A (zh
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J·哈维
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Gates Corp
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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D47/00—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings
    • F16D47/04—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings of which at least one is a freewheel
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
    • F16D3/12—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/72—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D47/00—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings
    • F16D47/02—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings of which at least one is a coupling
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/1213—Spiral springs, e.g. lying in one plane, around axis of rotation
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F16H2055/366—Pulleys with means providing resilience or vibration damping

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Pulleys (AREA)

Abstract

一种隔离断开器包括：毂，与毂接合的单向离合器，与毂旋转接合的皮带轮，可操作地接合在单向离合器和皮带轮之间的弹簧，以及通过弹性体部件与毂接合的惯性部件，惯性部件大致布置在皮带轮的宽度内，惯性部件可独立于皮带轮移动。

Description

隔离断开器
技术领域
本发明涉及一种隔离断开器，并且更特别地涉及一种隔离器断开器，所述隔离断开器具有附连到毂的单向离合器和惯性部件，所有这些容纳在皮带轮宽度内。
背景技术
车辆内燃发动机典型地包括前端皮带传动附件驱动装置。附件可以包括动力转向装置、交流发电机、水泵等。附件驱动装置也可以被称为蛇形驱动装置，原因是皮带常常沿着围绕发动机的前平面的迂回路径。
典型的蛇形驱动系统包括在车辆的内燃发动机的曲柄轴上的驱动皮带轮、用于附件的一系列从动皮带轮以及围绕主动和传动皮带轮传动的多楔皮带。蛇形驱动装置的优点在于通过在皮带上提供自动皮带张紧器可以固定地安装附件。
也已知在皮带传动附件和皮带轮之间提供断开器组件，从而当皮带轮随着发动机的速度振荡时，允许皮带传动附件在高速下暂时操作或“过度运转”皮带轮。
已知交流发电机皮带轮可以包含单向离合器、弹性部件或单向离合器和弹性部件两者。也已知相同的方法可以用于曲柄轴皮带轮。在后一种情况下不仅交流发电机惯性而且所有附件的惯性将与皮带驱动装置隔离。同时扭矩要求以及曲柄轴隔离器的所有其它元件的挑战明显更高。
对于没有断开部件的曲柄轴隔离器，选择弹簧刚度使得存在于曲柄轴的前端的扭转振动由它的弹性元件衰减并且防止该振动以不利方式影响ABDS。尽管在发动机操作期间是有益的，但是在起动和停止期间，装置存在于曲柄轴上会存在挑战。由于弹簧刚度使得第一系统固有频率在起动期间在空转之下，因此发动机RPM通过该固有频率导致装置的皮带轮和毂之间的放大相对运动。这导致弹性元件的大幅变形并且可以导致疲劳断裂和重大故障。可以通过使用在皮带轮和毂之间限制弹性元件的行程的限位件（一个或多个）防止该故障。然而，必须正确地放置和设计限位件以防止发动机操作的起动阶段期间的有害噪声。
现有技术的代表是美国专利6,044,943，其公开了一种曲柄轴断开器，该曲柄轴断开器具有安装毂、可旋转地安装在安装毂上的皮带轮，安装在所述皮带轮内的环形载件、安装在其间的偏压装置、以及安装在环形载件和皮带轮之间的单向离合器。偏压装置保护皮带驱动装置免于曲柄轴冲量并且降低皮带系统的角共振频率。单向离合器防止由于发动机的起动/停止或发动机的突然减速引起的驱动装置中的皮带张力的突然反向，并且防止由于张紧器的输出不足以用于反向模式导致的瞬时反向打滑皮带尖鸣。单向离合器限制可以传递的扭矩的最大量，防止瞬时超负荷期间的皮带打滑。
需要一种隔离断开器，所述隔离断开器具有附连到毂的单向离合器和惯性部件，所有这些包含在皮带轮宽度内。本发明满足该需要。
发明内容
本发明的主要方面是一种隔离断开器，所述隔离断开器具有附连到毂的单向离合器和惯性部件，所有这些包含在皮带轮宽度内。
本发明的其它方面将由本发明的以下描述和附图指出或变得明显。
本发明包括一种隔离断开器，所述隔离断开器包括：毂，与所述毂接合的单向离合器，与所述毂旋转接合的皮带轮，可操作地接合在所述单向离合器和所述皮带轮之间的弹簧，以及通过弹性体部件与所述毂接合的惯性部件，所述惯性部件大致布置在所述皮带轮的宽度内，所述惯性部件可独立于所述皮带轮移动。
附图说明
包含在说明书中并且形成说明书的一部分的附图示出本发明的优选实施例，并且与描述一起用于解释本发明的原理。
图1是装置的横截面。
图2是装置的分解图。
图3是装置的横截面分解图。
具体实施方式
图1是装置的横截面图。隔离断开器包括毂10。毂10可以安装到轴，例如曲柄轴或传动附件轴（未显示）。
单向离合器20安装到毂10。单向离合器20典型地压配合到离合器载件30上。离合器20接合毂10。
扭力弹簧40的第一端部41连接到离合器载件30。扭力弹簧40的第二端部42连接到皮带轮支撑部件50。
皮带轮70安装到皮带轮支撑件50和皮带轮支撑件60。皮带轮70包括皮带接合表面71。
弹性体环80连接到毂10。惯性环90连接到弹性体环80。惯性环与弹性体环的组合阻尼在发动机操作期间导致的曲柄轴振荡和振动。弹性体环80使用已知的粘合剂或机械配合或压配合牢固地固定在惯性环90和毂10之间。
皮带轮组件50、60、70相对于毂10在每个轴承110、120上旋转地可动。惯性环90独立于皮带轮组件50、60、70移动。
轴承110、120可以包括球轴承或本领域中已知的任何其它合适的轴承。
该装置的所有部件包含在由皮带轮支撑件50和皮带轮支撑件60轴向地限定并且由皮带轮70径向地限定的包络部内。
图2是装置的分解图。平面P2与惯性环90的圆周相交。平面P1与皮带轮70的圆周相交。在已组装的装置中，平面P1与平面P2共面，因此惯性环90相对于旋转轴线A-A与皮带轮70径向对准。弹簧40包含在每个皮带轮支撑件50和皮带轮支撑件60之间的毂10的轴线长度内。
图3是装置的横截面分解图。弹簧40、单向离合器20和离合器载件30均包含在毂10的接收部分11内。弹性体环80与毂外部件12接合。
在操作中，惯性部件90和弹性体环80吸收和阻尼曲柄轴扭转振动，由此防止振动将高负荷施加到曲柄轴和/或影响皮带驱动系统。单向离合器断开器特征允许皮带驱动系统的高惯性部件在快速发动机减速期间暂时“过度运转”曲柄轴。该装置将断开特征和隔离特征组合成紧凑包装体，该紧凑包装体可以在有限空间中用于发动机曲柄轴上。
尽管已在本文中描述了本发明的形式，但是本领域的技术人员将显而易见可以在部件的构造和关系上进行变化而不脱离本文中所述的发明的精神和范围。

Claims (5)

1.一种隔离断开器，包括：
毂；
与所述毂接合的单向离合器；
在第一球轴承和第二球轴承上与所述毂旋转接合的皮带轮；可操作地接合在所述单向离合器和所述皮带轮之间的弹簧；以及
通过弹性体部件与所述毂接合的惯性部件，所述惯性部件布置在一包络部内，所述包络部包括所述皮带轮、与所述第一球轴承接合的第一皮带轮支撑件和与所述第二球轴承接合的第二皮带轮支撑件，所述惯性部件能够独立于所述皮带轮移动。
2.根据权利要求1所述的隔离断开器，还包括布置在所述弹簧和所述单向离合器之间的载件。
3.根据权利要求1所述的隔离断开器，其中所述惯性部件与所述皮带轮大致共面。
4.一种隔离断开器，包括：
毂；
与所述毂接合的单向离合器；
通过第一皮带轮支撑件和第二皮带轮支撑件与所述毂旋转接合的皮带轮；
可操作地接合在所述单向离合器和所述第一皮带轮支撑件之间的弹簧；
布置在所述弹簧和所述单向离合器之间的载件；以及
通过弹性体部件与所述毂接合的惯性部件，所述惯性部件大致布置在所述皮带轮的宽度内，并且所述惯性部件与所述皮带轮大致共面，所述惯性部件能够独立于所述皮带轮移动。
5.根据权利要求4所述的隔离断开器，还包括在所述毂和所述第一皮带轮支撑件之间的第一球轴承和在所述毂和所述第二皮带轮支撑件之间的第二球轴承。
CN201280004032.8A 2011-01-24 2012-01-20 隔离断开器 Active CN103282684B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/931,061 US8506434B2 (en) 2011-01-24 2011-01-24 Isolating decoupler
US12/931,061 2011-01-24
PCT/US2012/021956 WO2012102946A1 (en) 2011-01-24 2012-01-20 Isolating decoupler

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CN103282684A CN103282684A (zh) 2013-09-04
CN103282684B true CN103282684B (zh) 2015-12-02

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EP (1) EP2668412B1 (zh)
JP (1) JP5608293B2 (zh)
KR (1) KR101476571B1 (zh)
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BR (1) BR112013011700B1 (zh)
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