CN104582987B - 用于车辆的动力传输设备 - Google Patents
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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
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/069—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by pivoting or rocking, e.g. sprags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
- B60K6/383—One-way clutches or freewheel devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
- B60K6/405—Housings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
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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
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears
- F16H48/11—Differential gearings with gears having orbital motion with orbital spur gears having intermeshing planet gears
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/904—Component specially adapted for hev
- Y10S903/912—Drive line clutch
- Y10S903/913—One way
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/952—Housing details
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- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
来自混合动力车辆的发动机的动力输入到分力装置的输入轴(302)。单向离合器(500)和分力装置容纳在壳体(600)内。盖构件(700)设置在壳体(600)内侧。单向离合器(500)包括外圈(510)、内圈(520)和楔块(530)。外圈(510)以花键接合到盖构件(700)的突出部分(701)。内圈(520)以花键接合到输入轴(302),且通过盖构件(700)的突出部分(702)通过衬套(522)可旋转地支撑。输入轴(302)通过盖构件(700)通过第一轴承(340)、旋转构件(322A)和第二轴承(350)可旋转地支撑。
Description
技术领域
本发明涉及一种用于车辆的动力传输设备。
背景技术
日本专利申请公开No.2010-269718(JP 2010-269718 A)描述了提供有发动机、第一旋转电机和第二旋转电机的混合动力车辆内的结构。所述结构包括:i)行星齿轮组,所述行星齿轮组具有连接到第一旋转电机的太阳轮、连接到第二旋转电机的齿圈,和连接到发动机的行星架,和ii)单向离合器,所述单向离合器带有第一旋转电机和第二旋转电机。
发明内容
如在JP 2010-269718 A中所描述的那样,在提供有带有第一旋转电机和第二旋转电机的单向离合器的混合动力车辆中,当单向离合器布置在靠近发动机的输出轴的位置中时,由于从发动机传递的振动等,单向离合器的耐久性可能降低。
本发明改进了提供有发动机、第一旋转电机、第二旋转电机和带有第一旋转电机和第二旋转电机的单向离合器的车辆内的单向离合器的耐久性。
本发明的一个方面涉及用于包括发动机、第一旋转电机和第二旋转电机的车辆的动力传输设备。此动力传输设备包括差速齿轮单元、单向离合器、壳体、第一盖构件、第一轴承和第二轴承。差速齿轮单元具有第一旋转元件、第二旋转元件和第三旋转元件。第一旋转元件连接到第一旋转电机。第二旋转元件连接到第二旋转电机。第三旋转元件连接到来自发动机的动力输入到其内的输入轴。单向离合器布置在发动机和第一旋转电机之间。单向离合器构造为允许输入轴在一个方向上旋转且抑制输入轴在另一个方向上旋转。单向离合器包括内圈和外圈。内圈以花键接合到输入轴。单向离合器、第一旋转电机、差速齿轮单元和第二旋转电机容纳在壳体内。第一盖构件布置在壳体的内部且固定到壳体。第一盖构件以花键接合到外圈。输入轴通过第一轴承由第一旋转元件可旋转地支撑。第一旋转元件通过第二轴承由第一盖构件可旋转地支撑。
以上所述的动力传输设备也可包括衬套。第一盖构件可具有突出部分。突出部分可延伸到内圈的径向外侧端部的径向内侧上。突出部分通过衬套可旋转地支撑内圈的径向外侧端部。突出部分可构造为限制内圈向径向内侧的移动。
在以上所述的动力传输设备中,在其处单向离合器和输入轴以花键接合的接合部分处,在单向离合器和输入轴之间在径向方向上的间隙可大于输入轴在径向方向上的振动量和内圈在径向方向上的振动量之和。
在以上所述的动力传输设备中,接合部分在径向方向上的间隙可大于输入轴在径向方向上的振动量、内圈在径向方向上的振动量和外圈在径向方向上的振动量之和。
在以上所述的动力传输设备中,第一盖构件和第二盖构件构造为限制外圈在其轴向方向上的移动。
以上所述的动力传输设备也可包括紧固到第一盖构件的第二盖构件。第一盖构件和第二盖构件可构造为限制外圈在其轴向方向上的移动。
在以上所述的动力传输设备中,外圈、内圈和输入轴可通过第一盖构件支撑。
本发明使得可改进提供有发动机、第一旋转电机、第二旋转电机和用于以第一旋转电机和第二旋转电机驱动车辆的单向离合器的混合动力车辆中的单向离合器的耐久性。
附图说明
本发明的典型实施例的特征、优点和技术和工业重要性将参考附图在下文中描述,其中类似的附图标号指示类似的元件,且其中:
图1是示意性地示出了混合动力车辆的框图;
图2是示出了壳体的内部结构的框架格式的视图;
图3是单向离合器周围的详细结构的视图;和
图4是内圈的花键部分的放大视图。
具体实施方式
在后文中,将参考附图描述本发明的示例实施例。在以下的描述中,类似的零件将以类似的附图标号指示且通过相同的术语指示且具有相同的功能。因此,将不重复对这些零件的详细描述。
图1是示意性地示出了根据本发明的一个示例实施例的混合动力车辆的框图。此混合动力车辆是FR(前置发动机后驱动)车辆,但所述混合动力车辆也可以是不同于FR车辆的车辆。在示例实施例中描述为混合动力车辆的车辆也包括提供有巡航增程功能(即,增程式车辆)的电动车辆,其中发动机主要用于发电。
混合动力车辆包括混合动力系统100、自动变速器(多速度变速器)400、传动轴402、差速器404和后轮406。混合动力系统100包括发动机200、阻尼器202、分力装置(差速齿轮单元)310、第一马达-发电机311、第二马达-发电机312和单向离合器500。
如在图1中所示,发动机200、阻尼器202、单向离合器500、第一马达-发电机311、分力装置310、第二马达-发电机312和自动变速器400都以此次序从车辆的前方朝向车辆的后方布置。从阻尼器202到第二马达-发电机312的部件(更具体地,阻尼器202、单向离合器500、第一马达-发电机311、分力装置310和第二马达-发电机312)容纳在壳体600内部。
固定到壳体600的盖构件700提供在壳体600内部。壳体600的内部结构将在下文中详细描述。
自动变速器400连接到混合动力系统100的输出轴。从自动变速器400输出的驱动力通过传动轴402和差速器404被传递到左后车轮和右后车轮406。
图2是示出了壳体600的内部结构的框架格式的视图。图3是单向离合器500周围的详细结构的视图。现在将参考图2和图3详细描述混合动力系统100。
动力从发动机200通过阻尼器202输入到分力装置310的输入轴302。阻尼器202和输入轴302通过花键接合而连接在一起。
分力装置310将从发动机200输入到输入轴302的动力分配到第一马达-发电机311和输出轴304。
分力装置310包括输入轴302、太阳轮322、行星轮324、行星架326、齿圈328和输出轴304。行星架326通过输入轴302连接到发动机200,且可旋转且可回转地支撑了行星轮324。太阳轮322通过旋转构件322A连接到第一马达-发电机311的转子。齿圈328通过行星轮324与太阳轮322啮合,且连接到自动变速器400的未示出的输入轴且通过输出轴304连接到第二马达-发电机312的转子。
分力装置310通过太阳轮322、行星架326和齿圈328相对彼此旋转来用作差速齿轮单元。来自发动机200的动力通过分力装置310的此差速功能被分配到第一马达-发电机311和输出轴304。
第一马达-发电机311和第二马达-发电机312都是三相交流电旋转电机。第一马达-发电机311可使用从分力装置310输入的来自发动机200的动力生成动力(即,电力)。第二马达-发电机312可使用通过第一马达-发电机311生成的电力进行驱动。第二马达-发电机312的转子连接到分力装置310的输出轴304。分力装置310的输出轴304连接到自动变速器400的未示出的输入轴。
如在图2中所示,分力装置310提供在第一马达-发电机311和第二马达-发电机312之间。同时,单向离合器500提供在阻尼器202(发动机200)和第一马达-发电机311之间。即,单向离合器500布置在比第一马达-发电机311更靠近发动机200的位置处。
盖构件700通过螺栓固定到壳体600。盖构件700在大体上垂直于输入轴302的方向(在后文中也成为“径向方向”)上延伸且将壳体600的内侧进行划分。
盖构件700具有在径向方向上延伸的主体部分和从主体部分在大体上平行于输入轴302的方向(在后文中也成为“轴向方向”)上延伸的突出部分701、703。突出部分701以柱形形状从盖构件700的主体部分侧表面向车辆的前方延伸。突出部分702从盖构件700的主体部分的径向内侧端部延伸到单向离合器500的内圈520的径向外侧端部的径向内侧的位置。突出部分703以柱形形状从盖构件700的主体部分侧表面向车辆的后方延伸。
在径向方向上延伸的小盖构件710通过螺栓711紧固到突出部分701的尖端。壳体600的内部被盖构件700和小盖构件710划分为其处容纳了阻尼器202的空间(在后文中称为“阻尼器室”)、其处容纳了单向离合器500的空间(在后文中称为“离合器室”)和其处容纳了第一马达-发电机311、分力装置310和第二马达-发电机312的空间(在后文中称为“马达室”)。
来自提供在输入轴302内的油孔303的润滑油通过离心力供给到离合器室。用于保证离合器室的油密性的油封713提供在小盖构件710和输入轴302之间。O型圈705也提供在突出部分701的尖端(接触小盖构件710的表面)上。从油孔303供给到离合器室的润滑油然后通过离心力通过提供在盖构件700内的油孔704移动到马达室。用于将润滑油供给到楔块530的油路524提供在内圈520内部。
单向离合器500包括外圈510、内圈520和楔块530。
外圈510通过花键部分511以花键接合到盖构件700的突出部分701。作为结果,外圈500的在径向向外方向(即离开输入轴302的方向)上的移动通过盖构件700的突出部分701限制。
外圈510在轴向方向上的移动通过盖构件700和小盖构件710限制。此类型的布置消除了对于将外圈510在轴向方向上定位的扣合圈的需求,因此实现了零件数量的降低。
内圈520通过花键部分521以花键接合到输入轴302。内圈520通过衬套522由盖构件700的突出部分702可旋转地支撑。作为结果,内圈520在径向向内方向(即朝向输入轴302的方向)上的移动被盖构件700的突出部分702限制。内圈520在轴向方向上的移动被滑环523限制。
单向离合器500允许输入轴302在一个方向(向前方向)上旋转且抑制输入轴302在另一个方向(相反方向)上旋转。更具体地,当内圈520试图在一个方向(向前方向)上相对于被盖构件700限制旋转的外圈510旋转时,楔块530分离,且内圈520被允许在一个方向上旋转。另一方面,当内圈520试图在另一个方向(相反方向)上旋转时,楔块530与外圈510和内圈520接合,且内圈520变成固定到外圈510。
此外,输入轴302通过第一轴承340由将第一马达-发电机311的转子连接到太阳轮322的旋转构件322A可旋转地支撑。而且,旋转构件322A通过第二轴承350由盖构件700的突出部分703可旋转地支撑。即,输入轴302通过第一轴承340、旋转构件322A和第二轴承350由盖构件700的突出部分703可旋转地支撑。作为结果,输入轴302在径向向外方向上的移动被盖构件700的突出部分703限制。
在此示例实施例中,单向离合器500可布置在靠近发动机200的位置中,因此来自发动机200的振动等倾向于被传递到单向离合器500。然而,在此示例实施例中,如上所述,单向离合器500的外圈510和内圈520,以及输入轴302都通过相同的盖构件700支撑。即,外圈510由盖构件700支撑在花键部分511处,内圈520由盖构件700通过衬套522支撑,且输入轴302由盖构件700通过第一轴承340、旋转构件322A和第二轴承350支撑。作为结果,单向离合器500的支撑精度得以改进且每个构件的振动量可降低,因此可改进单向离合器500的耐久性。
特别地,在此示例实施例中,单向离合器500在径向向内方向上的移动和输入轴302在径向向外方向上的移动通过相同的盖构件700抑制。因此,单向离合器500在径向向内方向上的振动量和输入轴302在径向向外方向上的振动量之和可精确地被限制。因此,可抑制在径向方向上作用在单向离合器500上的力,因此可合适地改进单向离合器500和其周围零件的耐久性。此外,外圈510在径向向外方向上的移动被相同的盖构件700抑制。因此,在单向离合器500和盖构件700之间的间隙也可被精确地避免。
图4是从轴向方向上观察时内圈520的花键部分521和输入轴312的放大视图。花键部分521在径向方向上的间隙量的值设定为大于内圈520在径向方向上的振动量和输入轴302在径向方向上的振动量之和。此外,花键部分521在径向方向上的间隙量的值设定为大于内圈520在径向向内方向上的振动量、输入轴302在径向方向上的振动量和外圈510在径向方向上的振动量之和。因此,即使输入轴302在径向方向上的振动变大,在径向方向上作用在单向离合器500的内圈520上的力也可被合适地抑制。在此,可更合适地改进单向离合器500的耐久性。
如上所述,在此示例实施例中,单向离合器500的外圈510和内圈520,以及输入轴302通过相同的盖构件700支撑。作为结果,可改进单向离合器500的耐久性。
在此公开的示例实施例在所有方面中仅是示例且不应视作限制性的。本发明的范围不通过前述描述指示而是通过专利的权利要求的范围指示,且意图于包括专利的权利要求的范围和等价于专利的权利要求的范围的意义内的所有修改。
Claims (5)
1.一种用于车辆的动力传输设备,所述车辆包括发动机(200)、第一旋转电机(311)和第二旋转电机(312),所述动力传输设备包括:
差速齿轮单元(310),所述差速齿轮单元(310)具有第一旋转元件(322)、第二旋转元件(328)和第三旋转元件(326),所述第一旋转元件(322)被连接到所述第一旋转电机(311),所述第二旋转元件(328)被连接到所述第二旋转电机(312),并且所述第三旋转元件(326)被连接到输入轴(302),来自所述发动机(200)的动力被输入到所述输入轴(302)中;
单向离合器(500),所述单向离合器(500)被布置在所述发动机(200)和所述第一旋转电机(311)之间,所述单向离合器(500)被构造成允许所述输入轴(302)在一个方向上旋转而抑制所述输入轴(302)在另一个方向上旋转,所述单向离合器(500)包括内圈(520)和外圈(510),所述内圈(520)用花键接合到所述输入轴(302);
壳体(600),所述单向离合器(500)、所述第一旋转电机(311)、所述差速齿轮单元(310)和所述第二旋转电机(312)被容纳在所述壳体(600)内;
第一盖构件(700),所述第一盖构件(700)被布置在所述壳体(600)的内部,并且被固定到所述壳体(600),所述第一盖构件(700)用花键接合到所述外圈(510);
第一轴承(340),所述输入轴(302)经由所述第一轴承(340)被所述第一旋转元件(322)可旋转地支撑;
第二轴承(350),所述第一旋转元件(322)经由所述第二轴承(350)被所述第一盖构件(700)可旋转地支撑;以及
第二盖构件(710),所述第二盖构件(710)被紧固到所述第一盖构件(700),所述第一盖构件(700)和所述第二盖构件(710)被构造成限制所述外圈(510)在所述外圈(510)的轴向方向上的运动。
2.根据权利要求1所述的动力传输设备,进一步包括:
衬套(522),
其中所述第一盖构件(700)具有突出部分(702);
所述突出部分(702)延伸到所述内圈(520)的径向外侧端部的径向内侧上的位置;
所述突出部分(702)经由所述衬套(522)可旋转地支撑所述内圈(520)的径向外侧端部;并且
所述突出部分(702)被构造成限制所述内圈(520)向径向内侧的运动。
3.根据权利要求1或2所述的动力传输设备,其中:
在所述单向离合器(500)和所述输入轴(302)用花键接合的接合部分处,在所述单向离合器(500)和所述输入轴(302)之间在径向方向上的间隙大于所述输入轴(302)在所述径向方向上的振动量和所述内圈(520)在所述径向方向上的振动量之和。
4.根据权利要求3所述的动力传输设备,其中:
所述接合部分在所述径向方向上的间隙大于所述输入轴(302)在所述径向方向上的振动量、所述内圈(520)在所述径向方向上的振动量和所述外圈(510)在所述径向方向上的振动量之和。
5.根据权利要求1所述的动力传输设备,其中:
所述外圈(510)、所述内圈(520)和所述输入轴(302)由所述第一盖构件(700)支撑。
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