CN110248836B - 包括用于限制离合器板组件的移离的止挡部的机动车离合器组件 - Google Patents
包括用于限制离合器板组件的移离的止挡部的机动车离合器组件 Download PDFInfo
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- F16D13/00—Friction clutches
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- F16H2045/021—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type three chamber system, i.e. comprising a separated, closed chamber specially adapted for actuating a lock-up clutch
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- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0215—Details of oil circulation
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- F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
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- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
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Abstract
提供了一种机动车离合器组件。该机动车离合器组件包括:径向延伸区段,其包括抵接表面;离合器单元,其包括第一离合器板和隔板;可轴向移动的活塞,其用于接合离合器单元;和弹性连接器,其将隔板连接至所述径向延伸区段。所述弹性连接器将隔板远离所述抵接表面预加载。该机动车离合器组件包括止挡部,该止挡部设置成用于接触隔板以限制隔板远离抵接表面的轴向移动。所述止挡部与抵接表面相距一轴向距离,以使得隔板能够由弹性连接器压迫而抵靠止挡部以提供间隙,从而使得第一离合器板能够移动远离抵接表面。还提供了一种形成机动车离合器组件的方法。
Description
技术领域
本公开总体上涉及机动车离合器组件,且更具体地涉及用于限制变矩器中的离合器板组件的移离的止挡部。
背景技术
片弹簧的阶梯高度可用于限制离合器板组件的移离,但片弹簧不能为离合器板提供真正的止挡部。在片弹簧的形状高度上也有很大公差,从而不利地影响离合器间隙和移离控制。
发明内容
提供了一种机动车离合器组件。该机动车离合器组件包括:径向延伸区段,其包括抵接表面;离合器单元,其包括第一离合器板和隔板;可轴向移动的活塞,其用于接合离合器单元;和弹性连接器,其将隔板连接至所述径向延伸区段。所述弹性连接器将隔板远离所述抵接表面预加载。该机动车离合器组件还包括止挡部,该止挡部设置成用于接触隔板以限制隔板远离抵接表面的轴向移动。所述止挡部与抵接表面相距一轴向距离,以使得隔板能够由弹性连接器压迫而抵靠止挡部以提供间隙,从而使得第一离合器板能够移动远离抵接表面。
在机动车的实施例中,所述止挡部可由止挡板的径向外部部分形成。所述止挡板可包括多个轴向延伸贯穿所述止挡板的孔,以使流体能够从止挡板的变速器侧表面流动穿过孔并径向向外流动到第一离合器板。所述径向延伸区段可以是前盖的一部分。所述抵接表面可由前盖的径向延伸区段的内表面形成。所述止挡板可固定到前盖的径向延伸区段。毂区段可固定到前盖,所述活塞能够沿所述毂区段密封地轴向滑动。所述毂区段和所述止挡板可通过同一焊接部固定到前盖。焊接部可以是激光焊接部。所述焊接部可设置在前盖的径向延伸区段的内周表面处。弹性连接器可由多个周向间隔开的片弹簧形成。离合器单元还可包括第二离合器板。所述隔板可轴向地定位在第一离合器板和第二离合器板之间。所述隔板可包括径向外部部分,以用于接合第一离合器板的径向内部部分和第二离合器板的径向内部部分。
还提供了一种包括该离合器组件的变矩器。
还提供了一种形成机动车离合器组件的方法。该方法包括:提供离合器单元,所述离合器单元包括第一离合器板和隔板;提供可轴向移动的活塞,以用于接合所述离合器单元;通过多个弹性连接器将隔板弹性连接至径向延伸区段,所述弹性连接器将隔板远离所述径向延伸区段的抵接表面预加载;和提供止挡部,所述止挡部设置成用于接触隔板以限制隔板远离抵接表面的轴向移动,所述止挡部与抵接表面相距一轴向距离,以使得隔板能够由弹性连接器压迫而抵靠止挡部以提供间隙,从而使得第一离合器板能够移动远离抵接表面。
在该方法的实施例中,所述止挡部可由止挡板的径向外部部分形成。所述止挡板可包括多个轴向延伸贯穿所述止挡板的孔,以使流体能够从止挡板的变速器侧表面流动穿过孔并径向向外流动到第一离合器板。所述抵接表面可由前盖的径向延伸区段的内表面形成。所述方法可包括将所述止挡板和毂区段通过同一焊接部固定到所述前盖的径向延伸区段,所述活塞能够沿所述毂区段密封地轴向滑动。将所述止挡板和毂区段固定到径向延伸区段可包括将止挡板和毂区段激光焊接到径向延伸区段。
附图说明
下面参考附图描述本发明,其中:
图1示出了根据本发明一个实施例的变矩器的剖视侧视图。
具体实施方式
本公开提供了一种用于控制四板离合器设计中的离合器板之间的移离的止挡部。止挡部形成为具有孔的板,以允许离合器板之间的均匀流动分布。可通过激光焊接将止挡板连接至盖。板高度允许左离合器板组件的足够移离。片弹簧将离合器板连接至盖,且大到足以总是将离合器单元的隔板推压抵靠止挡部。
图1示出了根据本发明一个实施例的变矩器10的剖视侧视图。变矩器10可绕中心轴线11旋转,且包括用于连接内燃机曲轴的前盖12和形成叶轮或泵18的壳体16的后盖14。本文所使用的术语轴向、径向和周向是相对于中心轴线11而言。前盖12是大致杯形的,且包括径向延伸区段12a和环形的轴向延伸区段12b,径向延伸区段12a与中心轴线11相交并远离中心轴线11径向延伸,环形的轴向延伸区段12b在区段12a的外周处轴向地突出。变速器10以已知的方式还包括:涡轮20,其包括多个涡轮叶片22;叶轮18,其包括多个叶轮叶片24;和导轮26,其包括轴向地位于涡轮20和叶轮18之间的多个导轮叶片28。在操作期间,叶轮18通过内燃机旋转,使叶轮叶片24产生驱动涡轮叶片22的流体流动。该流体从涡轮20通过导轮叶片28重引导回到叶轮18。
变矩器10还包括减振器组件30,该减振器组件30将涡轮20连接至离合器组件15的锁止离合器32。减振器组件30包括支撑径向内部组弹簧38的两个盖板34,36,其中,涡轮侧盖板34的径向外端部形成离心摆式减震器40的中间凸缘,前盖侧盖板36的径向外端部形成弹簧保持器42,以用于径向外部组弹簧44。由盖板34,36经由弹簧38驱动的驱动凸缘46轴向地设置在盖板34,36之间,并连接至减振器毂48,减振器毂48构造成不可相对旋转地连接至变速器输入轴50。减振器组件30还包括固定到盖板36的驱动板52,该驱动板52布置成用于接触弹簧44的端部,使得减振器组件可由锁止离合器32通过弹簧44驱动。
减振器组件30驱动地连接至锁止离合器32的离合器单元58的第一离合器板56的径向外部径向部分56c。在该实施例中,离合器单元58包括三个板——离合器板56、另一离合器板60和将离合器板56,60隔开的隔板62;然而,在其他实施例中,离合器单元中的板的数量可不是三个。离合器板56包括:径向外部部分56c,其通过与弹簧44接触而驱动地连接至减振器组件30;和径向内部部分56d,其用于离合器接合。在径向外部部分56c和径向内部部分56d之间,离合器板56包括中间部分56e,中间部分56e支撑离合器板60的轴向延伸的边沿60c。更具体地,中间部分56e包括沿轴向延伸贯穿该中间部分的周向间隔开的槽56f,槽56f中的每个接收边沿60c的、轴向延伸穿过槽56f的多个周向间隔开的舌片60d中的相应一个。在边沿60c的径向内侧,离合器板60包括径向内部部分60e,以用于离合器接合。
锁止离合器32还包括:抵接表面,其由前盖12的径向延伸区段12a的内表面66形成;和活塞64,其用于通过迫使离合器单元58抵靠内表面66来接合离合器单元58。更具体地,活塞64接触第一离合器板56,并压迫离合器板56,以迫使板60,62朝着发动机压迫,使得离合器板60接触内表面66。离合器板56,60分别包括金属基板56a,60a和分别相应地位于基板56a,60a的两个径向延伸的且轴向朝向的表面上的摩擦材料56b,60b。在其他布置中,板62、活塞64和/或内表面66可包括摩擦材料,以代替摩擦材料56b,60b中的一个或多个。在接合期间,活塞64接触板56的摩擦材料56b,且板60的摩擦材料60b压靠前盖12的内表面66。
活塞64可沿毂区段68轴向滑动,毂区段68不可相对旋转地固定到前盖12的径向延伸区段12a。毂区段68包括:通道69a,其用于将流体供送到活塞64的变速器侧;和通道69b,其用于将流体供送到活塞64的发动机侧。毂区段68在其外周表面处的凹槽中设有密封环70。活塞64的内轴向延伸环区段72的内周表面接触密封环70,使得活塞64在活塞64的最内周表面处相对于毂区段68密封。径向延伸的支撑板74例如通过焊接固定到毂区段68。支撑板74从毂区段68径向向外突出,且在其外周表面处设有密封环76,以用于接触活塞64的外轴向延伸环区段78的内周表面。活塞64还包括径向延伸的环区段80,该环区段80从内环区段72径向向外延伸到外环区段78。活塞64通过多个周向间隔开的弹性连接器弹性地连接至支撑板74(在该实施例中,弹性连接器是片弹簧82的形式),使得活塞64轴向移动远离支撑板74以接合锁止离合器32,但是在滑行状态下被远离离合器单元58预加载。每个片弹簧82均通过穿过支撑板74的相应的第一紧固件固定到支撑板74,并通过穿过活塞64的环区段80的相应的第二紧固件固定到活塞64,第一紧固件成第一铆钉84的形式,第二紧固件成第二铆钉85的形式。
隔板62也通过多个周向间隔开的弹性连接器弹性连接至前盖12的径向延伸区段12a(在该实施例中,弹性连接器是片弹簧86的形式),使得活塞64在离合器接合和脱开期间可相对于前盖12轴向移动。每个片弹簧86均通过相应的第一紧固件固定到前盖12的径向延伸区段12a,并通过相应的第二紧固件固定到隔板62,第一紧固件成由前盖12形成的挤压铆钉88的形式,第二紧固件成穿过隔板62的径向内部部分90的铆钉88的形式。隔板62的径向外部部分92轴向地定位在离合器板56,60之间。片弹簧86固定到径向内部部分90的朝向发动机侧的径向延伸表面90a。
离合器组件15还包括形成在止挡板94的端部处的止挡部95,止挡板94是刚性的且固定到前盖12的径向延伸区段12a,用于限制隔板62远离径向延伸区段12a的轴向移动。在一个优选实施例中,止挡板94被激光焊接到径向延伸区段12a。止挡板94包括固定到径向延伸区段12a的径向内部部分94a、径向内部部分94a径向外侧的中间部分94b和形成止挡部95的径向外部部分94c,其构造成用于接触隔板62的径向内部部分90的内径向端部的变速器侧表面90b。径向内部部分94a的内径向端部夹在前盖12的内表面66和毂区段68的朝向发动机侧的径向延伸表面68a之间。
在图1所示的实施例中,止挡板94通过激光焊接部96固定到前盖12的径向延伸区段12a,激光焊接部96位于前盖12的内周表面径向延伸区段12a处,也将毂区段68固定到径向延伸区段12a的内周表面。止挡板94设置在毂区段68中的通道69b的发动机侧,使得通道69b供送到轴向地位于止挡板94和活塞64之间的区域。中间部分94b设有多个周向间隔开的孔98,该孔98从发动机侧径向延伸表面94d穿过止挡板94轴向延伸到径向延伸的变速器侧表面94e。孔98设置用于使流体能够从通道69b轴向地流过止挡板94并径向向外直接流到离合器板60,以在两个离合器板56,60之间提供均匀的流动分布。
在图1所示的实施例中,径向内部部分94a沿前盖12的内表面66垂直于中心轴线11径向延伸,于是中间部分94b朝前盖12的径向延伸区段12a轴向地倾斜,同时径向向外延伸,然后径向向外地直接延伸到外部部分94c,外部部分94c径向向外延伸,使得止挡板94的外径位于隔板60的内径的径向外侧。片弹簧86使隔板62远离前盖12的内表面66预加载,从而提供间隙,以使得当锁止离合器32脱开时离合器板60可从内表面66移离。止挡板94的径向外部部分94c定位成与内表面66相距一轴向距离,使得当活塞64不迫使离合器单元58靠向前盖12时,片弹簧86使隔板62远离内表面66预加载,且隔板62的径向内部部分90接触止挡板94的径向外部部分94c,且离合器板60可从内表面66移离。
在前述说明书中,已经参考特定示例性实施例及其示例描述了本发明。然而,显而易见的是,在不脱离所附权利要求中阐述的本发明的更广泛精神和范围的情况下,可对其进行各种修改和改变。因此,说明书和附图应以说明性方式而非限制性意义来看待。
Claims (10)
1.一种机动车离合器组件,包括:
径向延伸区段,其包括抵接表面;
离合器单元,其包括第一离合器板和隔板;
可轴向移动的活塞,其用于接合离合器单元;
弹性连接器,其将隔板连接至所述径向延伸区段,所述弹性连接器将隔板远离所述抵接表面预加载;和
止挡部,其设置成用于接触隔板以限制隔板远离抵接表面的轴向移动,所述止挡部与抵接表面相距一轴向距离,以使得隔板能够由弹性连接器压迫而抵靠止挡部以提供间隙,从而使得第一离合器板能够移动远离抵接表面。
2.根据权利要求1所述的机动车离合器组件,其中,所述止挡部由止挡板的径向外部部分形成,所述止挡板包括多个轴向延伸贯穿所述止挡板的孔,以使流体能够从止挡板的变速器侧表面流动穿过孔并径向向外流动到第一离合器板。
3.根据权利要求2所述的机动车离合器组件,其中,所述径向延伸区段是前盖的一部分,所述抵接表面由前盖的径向延伸区段的内表面形成,所述止挡板固定到前盖的径向延伸区段。
4.根据权利要求3所述的机动车离合器组件,其中,所述机动车离合器组件还包括固定到前盖的毂区段,所述活塞能够沿所述毂区段密封地轴向滑动,所述毂区段和所述止挡板通过同一焊接部固定到前盖。
5.根据权利要求4所述的机动车离合器组件,其中,所述焊接部设置在前盖的径向延伸区段的内周表面处。
6.根据权利要求1所述的机动车离合器组件,其中,所述离合器单元还包括第二离合器板,所述隔板轴向地定位在第一离合器板和第二离合器板之间。
7.根据权利要求6所述的机动车离合器组件,其中,所述隔板包括径向外部部分,以用于接合第一离合器板的径向内部部分和第二离合器板的径向内部部分。
8.一种形成机动车离合器组件的方法,包括:
提供离合器单元,所述离合器单元包括第一离合器板和隔板;
提供可轴向移动的活塞,以用于接合所述离合器单元;
通过多个弹性连接器将隔板弹性连接至径向延伸区段,所述弹性连接器将隔板远离所述径向延伸区段的抵接表面预加载;和
提供止挡部,所述止挡部设置成用于接触隔板以限制隔板远离抵接表面的轴向移动,所述止挡部与抵接表面相距一轴向距离,以使得隔板能够由弹性连接器压迫而抵靠止挡部以提供间隙,从而使得第一离合器板能够移动远离抵接表面。
9.根据权利要求8所述的方法,其中,所述止挡部由止挡板的径向外部部分形成,所述止挡板包括多个轴向延伸贯穿所述止挡板的孔,以使流体能够从止挡板的变速器侧表面流动穿过孔并径向向外流动到第一离合器板。
10.根据权利要求9所述的方法,其中,所述抵接表面由前盖的径向延伸区段的内表面形成,所述方法包括将所述止挡板和毂区段通过同一焊接部固定到所述前盖的径向延伸区段,所述活塞能够沿所述毂区段密封地轴向滑动。
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