CN101410264B - 动力传递装置及其装配方法 - Google Patents

动力传递装置及其装配方法 Download PDF

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CN101410264B
CN101410264B CN2007800105618A CN200780010561A CN101410264B CN 101410264 B CN101410264 B CN 101410264B CN 2007800105618 A CN2007800105618 A CN 2007800105618A CN 200780010561 A CN200780010561 A CN 200780010561A CN 101410264 B CN101410264 B CN 101410264B
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rotor
stator
pilot sleeve
transmission device
torque transfer
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CN101410264A (zh
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伊原博卓
三浦徹也
糟谷悟
鬼头昌士
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Aisin AW Co Ltd
Toyota Motor Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/22Arrangement 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
    • B60K6/40Arrangement 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/22Arrangement 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
    • B60K6/26Arrangement 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 motors or the generators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/22Arrangement 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
    • B60K6/36Arrangement 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 transmission gearings
    • B60K6/365Arrangement 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 transmission gearings with the gears having orbital motion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/42Arrangement 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
    • B60K6/44Series-parallel type
    • B60K6/445Differential gearing distribution type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/50Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54Transmission for changing ratio
    • B60K6/547Transmission for changing ratio the transmission being a stepped gearing
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49009Dynamoelectric machine
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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  • Combustion & Propulsion (AREA)
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  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
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Abstract

一种动力传递装置及其装配方法,可使具有电动机和传动机构的动力传递装置中的转子装配性得到提高。在本发明的动力传递装置中,具有:电动机(2),该电动机(2)具有在定子(12)的内周侧相对于该定子(12)呈同心圆状配置的转子(13);传动机构(1),用于传递动力。其中,所述传动机构(1)中的一个规定结构构件(7)的一部分,以与所述定子(12)或转子(13)的中心轴线一致的状态向所述定子(12)或转子(13)一侧突出,所述转子(13)滑套于该突出部分(7)的外周侧,并且在所述突出部分(7)的外周面与所述转子(13)的内周面之间设置有空隙(C),该空隙(C)可***用于使所述转子(13)向轴线方向移动的导向套筒。

Description

动力传递装置及其装配方法
技术领域
本发明涉及一种动力传递装置以及用于装配该动力传递装置的方法,该动力传递装置具有变速器等传动机构和用于对该传动机构输入或输出的扭矩进行增减的电动机。
背景技术
一直以来,作为车辆用的动力装置,已知有将内燃机与电动机组合而成的装置、或将电动机作为动力源的装置等。即使是在应用了这种动力装置的车辆上,为了控制驱动扭矩以及内燃机或电动机的转数,还需要装载变速器。在特开2003-127681号公报中记载了一个示例。在该特开2003-127681号公报中所记载的装置是一种混合动力汽车用的驱动装置,内燃机被连接在行星齿轮机构的行星齿轮架上的同时,第1电动发电机被连接在该行星齿轮机构的太阳齿轮上。并且,内啮合齿轮被连接在有级式自动变速器输入侧的构件上。该自动变速器输出侧的构件被连接于汽车传动轴上,第2电动发电机通过齿轮组被连接在该汽车传动轴上。因此,在特开2003-127681号公报所记载的装置中,所述行星齿轮机构构成了将内燃机输出的动力分配至第1电动发电机和输出侧的分配机构,从该分配机构向自动变速器传递动力的过程中,通过第2电动发电机施加或吸收扭矩。此外,在特开2003-127681号公报中还记载了下述构造:将自动变速器配置在第2电动发电机和汽车传动轴之间,并将第2电动发电机安装于自动变速器的输入轴上。
此外,在特开2001-268853号公报中,公开了下述构造:电动机定子被安装在壳体内部,变速器的输入轴被配置在与该电动机定子相同的轴线上,并且将与该电动机定子对置的电动机转子安装在所述输入轴上。
众所周知,作为上述特开2003-127681号公报及特开2001-268853号公报中所记载的电动机或电动发电机,在转子中具有永久磁铁的构造,将这种构造的转子***定子的内周侧时,有时在转子与定子之间因磁力产生的吸引力会发生作用,导致难以将二者维持为同心圆状的位置关系。在上述特开2003-127681号公报或特开2001-268853号公报所记载的构造中,由于将电动机或电动发电机直接安装在齿轮组及自动变速器的轴或驱动轴上,因此,如果将转子嵌合在这些轴或驱动轴上,则能够将转子以相对于定子为所谓对心状态来进行安装。但是,在安装了电动机或电动发电机的状态下,将会成为电动机或电动发电机与齿轮组或自动变速器等其他机构连接的状态。因此,在上述现有的构造中,在装配过程中不能或难以对电动机或电动发电机进行检查及调节,并且还有检查及调节的精度发生恶化的可能性。
发明内容
本发明是着眼于上述技术课题而进行的,其目的在于,使具有电动机和传动机构的动力传递装置中的转子装配性得到提高。
为了达成上述目的,在本发明的动力传递装置中,具有:电动机,该电动机具有在定子的内周侧相对于该定子呈同心圆状配置的转子;传动机构,用于传递动力,该动力传递装置的特征在于,所述传动机构中的一个规定结构构件的一部分,以使其中心轴线与该定子或转子一致的状态向所述定子或转子一侧突出,使所述转子滑套于该突出部分的外周侧,并且在所述突出部分的外周面与所述转子的内周面之间设置有空隙,该空隙可***使所述转子向轴线方向移动的导向套筒(guide sleeve)。
此外,在上述发明中,本发明的动力传递装置的特征在于,在所述突出部分中,比其前端部更靠近底端部侧的外周面成为几乎紧贴所述导向套筒并嵌合的导向部。
并且,在上述任意一项的发明中,本发明的动力传递装置的特征在于,所述突出部分包括向所述传动机构传递动力的轴,并且在所述轴与所述转子之间,安装有以可传递扭矩的方式连接该轴和转子的连接构件。
并且,在上述任意一项的发明中,本发明的动力传递装置的特征在于,通过所述套筒,所述转子相对于所述定子被定心。
此外另一方面,本发明还涉及一种动力传递装置的装配方法,该动力传递装置具有:电动机,该电动机具有在其定子的内周侧相对于该定子呈同心圆状配置的转子;传动机构,用于传递动力,该动力传递装置装配方法的特征在于,在所述传动机构中的一个规定结构构件的一部分,以使其中心轴线与该定子或转子一致的方式向所述定子或转子一侧突出的状态下,安装所述传动机构,并将导向套筒嵌合于该突出部分的外周侧,再将所述转子嵌合在该导向套筒的外周侧,同时使其沿该导向套筒向轴线方向移动,将所述转子旋转自如地安装在与定子相同的轴线上,之后将所述导向套筒从所述突出部分拔下。
并且,本发明的动力传递装置的装配方法的特征在于,在上述方法的发明中,通过所述动力传递装置的壳体或与该壳体一体的构件,而旋转自如地支承所述转子在轴线方向的两端部之后,再将所述导向套筒从所述突出部分拔下。
根据本发明,由于将导向套筒嵌合于从传动机构向电动机一侧突出的部分上,并且将转子安装成使其沿该导向套筒的外周面向轴线方向移动,因此,即使在传动机构被配置在电动机的一端侧导致无法确保工作空间的状态下,也能够将转子相对于定子几乎保持在同一轴线上并进行安装。因此,既能够避免转子干扰定子,还能够易于进行该安装工作。此外,当旋转被安装的转子时,相对于其中心侧的所述突出部分转子可充分离开,因此能够防止转子与突出部分的摩擦以及由此导致的烧伤。
此外,根据本发明,通过所述突出部分的底端侧部分和在此嵌合的导向套筒,能够构成用于转子安装的导向部,因此转子安装的易操作性较为良好。
并且,根据本发明,能够将导向套筒嵌合在从传动机构突出的轴上,并通过使转子沿该导向套筒的外周面向轴线方向移动而进行安装,因此使得转子变得易于安装的同时,由于该轴与转子是通过连接构件被连接的,因而在安装了转子的状态下,转子与所述轴离开并可单独旋转。因此,在动力传递装置的安装过程中,能够使电动机单独工作从而进行试验及调节等。
并且,根据本发明,通过所述突出部分或***轴与转子之间的空隙的导向套筒,能够将转子配置并保持在与定子的中心轴线一致的位置上,因此可以提高转子的装配性。
并且,根据本发明,在传动机构装配完成的状态下,通过从该传动机构向电动机侧突出的部分上使导向套筒嵌合,并沿该导向套筒将转子送到轴线方向上,从而安装转子。因此,由于通过所述导向套筒,能够以持续维持在与定子相同轴线上的状态将装配过程中的转子进行安装,所以能够容易进行该项操作。由于在转子的安装之后,要将导向套筒拔下,因此能够维持使转子离开于所述突出部的状态,因而能够使电动机单独工作从而进行试验及调节等。
并且,根据本发明,由于安装完成的转子旋转自如地被壳体或与之一体的构件支承,因此即使拔下导向套筒,也能够将转子保持在与定子相同的轴线上。而且,由于与所述突出部分之间可以维持足够的空隙,因此不会导致转子与所述突出部分的烧伤等,从而能够进行电动机的检查及调整。
附图说明
图1为表示本发明一个示例的剖视图。
图2为表示应用了本发明动力传递装置的混合动力汽车的驱动***的模式框架图。
图3为表示该动力传递装置的机械式变速部的结合工作表的图表。
图4为表示使用导向套筒安装转子过程的模式示意图。
图5为表示设置了用于转子定心的导向套筒机构的一个示例的示意图。
具体实施方式
下面根据如图所示的具体实施例对本发明进行说明。图1为表示作为本发明对象的动力传递装置的一部分的剖视图。此处所示的动力传递装置,具备机械式变速部1和电动机2。该变速部1和电动机2被收纳在壳体3的内部。该壳体3的构造为,其一端侧(图1中的左侧)是较大开口,而另一端部侧(图1中的右侧)是可供未图示的输出轴贯穿的较小开口,通过被安装在其内部的隔壁部4将其划分为两个收纳腔5、6。并且,变速部1被配置在图1右侧的收纳腔5内,而电动机2被配置在图1左侧的收纳腔6内并邻接于隔壁部4。
变速部1由有级式齿轮变速机构、带式或环形等无级变速机构等构成,其构成主要是为了通过变更动力的传递路线而改变变速比。以后再讲述以行星齿轮机构为主体而构成的有级式变速部1的一个示例。此外,变速部1具备相当于本发明突出部分的输入轴7,该输入轴7贯穿隔壁部4并向电动机2的收纳腔6一侧突出。
此外,隔壁部4为,在其中心部侧具备轴套部8的板状构件,其被嵌合并被对心在壳体3内周部所形成的套筒接合部9上,且通过螺栓10被固定在壳体3上。所述输入轴7沿该隔壁部4的轴套部8的中心轴线贯穿隔壁部4,并通过嵌合在其外周侧的轴承11而旋转自如地被隔壁部4支承。
另一方面,电动机2具备定子12和在该定子12的内周侧与之呈同心圆状配置的转子13。该电动机2可以使用适当形式的产品,例如可使用永磁同步电动机。此时,在定子12中设有线圈14,而在转子13中装有永久磁铁15。该转子13在其内周部具备圆筒部16,该圆筒部16的长度接近所述线圈14在轴线方向上的长度。此外,所述输入轴7从转子13的隔壁部4一侧的端部,以可到达相反一侧端部的长度突出。并且,在输入轴7前端部的外周面上形成有花键17。在该输入轴7上比花键17更靠近后端部一侧的外周面上,滑套有转子13的圆筒部16。具体而言,与输入轴7中从所述隔壁部4的突出部分的最大外径相比,所述圆筒部16的最小内径被设定为足够大,从而在圆筒部16的内周面与输入轴7的外周面之间形成有空隙(间隙)C。该空隙C是用于***后文详述的导向套筒Sg的。
并且,在圆筒部16的内周面中,与输入轴7的花键17对置部分的内径,大于花键17的外径,在该部分形成有相对于输入轴7的花键17处于离开状态的花键18。
收纳所述电动机2的收纳腔6,通过与所述隔壁部4对置地安装在所述壳体3内周部的另一隔壁部19而被划分。并且,所述转子13通过嵌合在该圆筒部16两端部的轴承20、21而旋转自如地被各隔壁部4、19支承。如前文所述,转子13滑套于输入轴7上,由于其各自的花键17、18并未啮合,因此在安装转子13并通过轴承20、21进行了支承的状态下,能够使转子13单独旋转。
此外,在所述圆筒部16中的另一隔壁部19一侧的端部处,安装有分解器22的转子23,在其外周侧沿半径方向相对地设置有定子24,该定子24被固定在所述另一隔壁部19的内侧面上。
在所述另一隔壁部19处,形成与所述输入轴7的中心轴线一致的轴套部25,在该轴套部25中***有动力分配机构26的输出轴27。该输出轴27是用于将来自动力分配机构26的动力传递至电动机2及变速部1的轴,其前端部可***所述圆筒部16的内周侧,并被形成为圆筒状,以使其能够嵌合于所述输入轴7的外周侧。并且,在该圆筒部分的内外两面均形成有花键,该花键与转子13上的花键18及输入轴7上的花键17嵌合。因此,通过相当于本发明之连接构件的所述输出轴27,转子13与输入轴7以可传递动力的方式被间接地连接在一起。此外,以后再详述关于动力分配机构26。
用于向所述变速部1和动力分配机构26以及各轴承11、20、21等供给润滑油或油压、或使之排放的油路28、29,贯穿所述各隔壁部4、19的内部而形成。并且,通过该油路28、29而给排油压的油压控制电路(未图示)被安装在所述壳体3的下部,此外,油底壳(未图示)以收纳该油压控制电路的状态被安装在壳体3的下部。
如图1所示的上述动力传递装置,能够安装在混合动力汽车上,在图2中对该构造的一个示例用框架图进行了图示。此处所示的示例为,一种作为双电动机混合动力驱动装置的构造示例,尤其是一种向车辆前后方向安装的构造示例。首先,对变速部1的构造进行说明,在图2所示的例中,其构造为,通过两组行星齿轮机构30、31能够设定前进4速/后退1速的变速比。该行星齿轮机构30、31虽然也可以采用单小齿轮型或双小齿轮型的任何一种形式,但在图2所示的例中,其各自采用了单小齿轮型行星齿轮机构。即,各行星齿轮机构30、31的构造为,将外齿齿轮的太阳齿轮S1、S2,和在其外周侧以同心圆状配置的内齿齿轮的内啮合齿轮R1、R2,以及被配置在该太阳齿轮S1、S2与内啮合齿轮R1、R2之间并对分别啮合的小齿轮进行支持的齿轮架CA1、CA2作为旋转要素,从而发挥差动作用。
该第1行星齿轮机构30中的齿轮架CA1和第2行星齿轮机构31中的内啮合齿轮R2相连接,并且,第1行星齿轮机构30中的内啮合齿轮R1和第2行星齿轮机构31中的齿轮架CA2相连接,因此,该行星齿轮机构30、31被构成为CR-CR结合的复合行星齿轮机构。
并且,还设置有用于对该复合行星齿轮机构选择性地传递动力的三个离合器机构C1、C2、C3。这些离合器机构C1、C2、C3例如是油压式的摩擦啮合器,其中第1离合器机构C1被配置在所述输入轴7与第2行星齿轮机构31的太阳齿轮S2之间,而且第2离合器机构C2被配置在第1行星齿轮机构30的齿轮架CA1与输入轴7之间,并且第3离合器机构C3被配置在第1行星齿轮机构30的太阳齿轮S1与输入轴7之间。
并且,还设置有对第1行星齿轮机构30的太阳齿轮S1进行选择性固定的第1制动机构B1;以及对第2行星齿轮机构31的内啮合齿轮R2进行选择性固定的第2制动机构B2。作为该制动机构B1、B2,可采用油压式的多片式制动器或带式制动器等。此外,与第2制动机构B2并列地设置单向离合器F1。当第1行星齿轮机构30的齿轮架CA1以及第2行星齿轮机构31的内啮合齿轮R2要向与输入轴7相反的方向旋转之际,该单向离合器F1与其卡合从而阻止其旋转。并且,在第2行星齿轮机构31的齿轮架CA2上连接有输出轴32。该输出轴32被配置在与所述输入轴7相同的轴线上,并从壳体3中突出。
接下来对动力分配机构26进行说明。该动力分配机构26为,将内燃机(发动机)33输出的动力分配至电动发电机(M1)34和所述变速部1的机构,其由行星齿轮机构而构成。该行星齿轮机构只需通过三个旋转要素发挥差动作用即可,可使用单小齿轮型或双小齿轮型等适当构造的产品,在图2所示的示例中采用了单小齿轮型的行星齿轮机构。并且,该行星齿轮机构是由作为增速机构而构成的,内燃机33被连接在齿轮架CA0上,而电动发电机34被连接在太阳齿轮S0上,并且所述输出轴27被连接在内啮合齿轮R0上。
并且,该动力分配机构26的输出轴27与变速部1的输入轴7连接,同时在该输出轴27及输入轴7上连接有所述电动机(M2)的转子13。此外,所述电动发电机34也可以是发电机,所述电动机2也可以是具备发电功能的电动发电机。此外,这些电动发电机34以及电动机2,通过未图示的变换器等控制器被连接在蓄电池上,并且,通过用电子控制装置来控制该变换器,从而可以控制驱动扭矩、发电扭矩及发电量等。
以上文所述的两组行星齿轮机构30、31为主体而构成的变速部1的构造为,通过对所述各离合器机构C1、C2、C3和制动机构B1、B2以及单向离合器F1进行如图3所示的结合或分离,从而对前进4速和后退1速进行设定。此外,图3为表示结合工作表的图表,其中,“○”记号表示结合状态,空白栏表示分离状态,带括号的“○”记号表示为使动力源制动器(或发动机制动器)生效而结合的状态。该离合器机构C1、C2、C3以及制动机构B1、B2的结合/分离的控制,是通过从前文所述的油压控制电路输出的油压来进行的。
接下来对上文所述动力传递装置的安装顺序(方法)进行说明。首先,对于在安装所述各隔壁部4、19之前的壳体3,从其较大的开口部一侧(车载状态下的内燃机33一侧)顺次***变速部1的结构构件,并安装在壳体3的内部。其次,将变速部1的输入轴7***隔壁部4的轴套部8,使隔壁部4与被形成在壳体3内周部的套筒接合部9进行嵌合,并通过螺栓10进行固定。在关闭收纳变速部1的收纳腔5的同时,使输入轴7通过轴承11而旋转自如地被轴套部8支承。
接着,在壳体3的内周部安装电动机2的定子12。在该状态下,所述输入轴7突出在与定子12相同的轴线上。在该输入轴7的突出端一侧嵌合导向套筒Sg。在图4中对该状态进行了模式化的图示。导向套筒Sg是由金属等表面硬度较高的材料制成的圆筒状构件,其被设定为,内径与所述输入轴7的最大外径几乎相等,而且外径与所述圆筒部16的内径几乎相等。换言之,其为壁厚与所述空隙C的宽度几乎相等的圆筒体。并且,输入轴7的最大外径的部分为,比形成了花键17的前端部更靠后侧(后端部一侧)的部分,因此,在输入轴7中,与其前端部相比,其后端部一侧部分的外周部构成了本发明的导向部。
若在所述导向套筒Sg的外周侧嵌合转子13的圆筒部16时,则由于导向套筒Sg几乎紧贴输入轴7而进行嵌合并与输入轴7一样被支承在与定子12相同的轴线上,因此,嵌合于此的转子13,被支承且被对心在与定子12相同的轴线上。在该状态下,若将转子13向该轴线方向移动,即将其送入定子12的内周侧时,由于转子13是在相对于定子12被对心的状态下向轴线方向移动,因此不会与定子12接触就被送入其内周侧。若将转子13送入到预期的位置时,则圆筒部16的端部嵌合预先安装于隔壁部4的轴承20,因而转子13通过该轴承20旋转自如地被隔壁部4支承。
因此,根据上述构造或方法,即使收纳电动机2的收纳腔6的一端侧被隔壁部4或变速部1封闭,能够以与两端支承状态同样的状态容易地安装转子13。
将转子13***定子12的内周侧之后,将另一隔壁部19***壳体3的内部并安装在壳体3的内周面上。此时,分解器22的转子23已预先装入所述圆筒部16,而且分解器22的定子24已预先固定在所述另一隔壁部19的内侧面上。并且,通过预先将轴承21安装在圆筒部16的另一侧端部的外周部或所述另一隔壁部19的内周部,从而使圆筒部16的另一侧端部通过该轴承21而旋转自如地被所述另一隔壁部19支承。即,转子13通过各轴承20、21而旋转自如地被各隔壁部4、19支承。
在这种情况下,由于通过与沿定子12中心轴线突出的输入轴7几乎紧贴并嵌合的导向套筒Sg来支承转子13,因此,转子13通过导向套筒Sg而被对心(定心)。因此,当安装所述另一隔壁部19时,转子13的端部易于与轴承21进行嵌合,因而能够易于进行另一隔壁部19的安装。而且,此时还能够回避转子13干扰定子12。
在安装了所述另一隔壁部19之后,将导向套筒Sg从输入轴7上拔下。此时,由于转子13被其两端侧的隔壁部4、19支承,而导向套筒Sg几乎没有被施加负载,因此能够容易地拔下导向套筒Sg。此外,即使拔下导向套筒Sg,转子13也可以通过各轴承20、21而被支承在与定子12相同轴线上的位置处。即,即使在拔下导向套筒Sg时,转子13也不会干扰定子12。
若拔下导向套筒Sg时,则在输入轴7的外周面与转子13的圆筒部16的内周面之间,具有几乎相当于导向套筒Sg壁厚的空隙C,从而使输入轴7与转子13处于充分离开的状态。此外,在该状态下,由于没有***动力分配机构26上的输出轴27,因而输入轴7与转子13未被连接。因此,电动机2能够单独工作,并且能够在不受变速部1的影响下,容易并正确地进行该扭矩测定等检查以及分解器22的调节等。
如上文所述的导向套筒Sg,具有定心并支承转子13的功能。在图5中表示了使该功能得到积极发挥的构造示例。本发明并不仅限于图5所示的示例,而图5所示的示例是在导向套筒Sg上设置了内径夹头的示例。即,导向套筒Sg的后端部被封闭,并设置有贯穿其端板部50的中心部且旋转自如地被支承的螺纹轴51。此外,该螺纹轴51的前端部旋转自如地被安装于导向套筒Sg内部的支承板52支承。因此,该螺纹轴51是沿导向套筒Sg的中心轴线配置的。
并且,在螺纹轴51处安装有外周面形成锥状的不旋转的圆锥53。即,通过使螺纹轴51旋转,可使圆锥53沿轴线方向前后移动。在该圆锥53的外周侧,呈放射状地配置有多个夹头卡爪54。这些夹头卡爪54朝着导向套筒Sg的中心部被弹性地推压,以使其与圆锥53的外周面接触。例如,各夹头卡爪54通过具有弹性的环或带(均未图示)而被捆在一起。此外,各夹头卡爪54被导板55所支承以使其向导向套筒Sg的半径方向移动并能够从导向套筒Sg的外周面突出。
因此,在图5所示的构造中,若旋转螺纹轴51从而使圆锥53向图5的左方后退时,则夹头卡爪54向导向套筒Sg的内周侧后退,由于连接该夹头卡爪54外周面的圆的半径,变成小于转子13的圆筒部16的内径,因此可以使转子13嵌合在导向套筒Sg的外周侧。与此相反,若使圆锥53向图5的右方前进时,则夹头卡爪54被推出到导向套筒Sg的外周侧,因此,通过将转子13预先嵌合在导向套筒Sg的外周侧,从而使夹头卡爪54被顶在圆筒部16的内周面,转子13被定心的同时,还被导向套筒Sg支承。
在上述的具体例中,表示了在混合动力驱动装置的动力传递装置中应用了本发明的示例,但是本发明并不仅限于上述的具体例,还能够适用于电动汽车中的动力传递装置等其他的动力传递装置。此外,本发明的传动机构,并不仅限于上文所述的行星齿轮式有级变速机构,也可以采用没有变速功能的传动机构。并且,本发明的电动机,并不仅限于永磁式的电动机,也可采用其他适当形式的电动机。并且,在本发明中,以可传递扭矩的方式连接输入轴和转子的连接构件,并不仅限于前文所述的动力分配机构26的输出轴27,也可采用其他适当的连接构件,此外用于该扭矩传递的装置也不仅限于花键,还可以采用如锯齿、滑键等通过旋转方向而互相卡合从而实现一体化的装置。

Claims (5)

1.一种动力传递装置,具有电动机和传动机构,其中,所述电动机具有在定子的内周侧相对于该定子呈同心圆状配置的转子,所述传动机构用于传递动力,所述动力传递装置的特征在于,
所述传动机构中的一个规定结构构件的一部分,以其中心轴线对齐所述定子或转子的中心轴线的状态,向所述定子或转子一侧突出,所述转子滑套于该突出部分的外周侧,并且在所述突出部分的外周面与所述转子的内周面之间设置有能够***导向套筒的空隙,该导向套筒使所述转子沿轴线方向移动,
在所述突出部分中,比其前端部更靠近底端部侧的外周面成为几乎紧贴并嵌合所述导向套筒的导向部。
2.如权利要求1所述的动力传递装置,其特征在于,所述突出部分包括向所述传动机构传递动力的轴,并且在所述轴与所述转子之间安装有以可传递扭矩的方式连接该轴和转子的连接构件。
3.如权利要求1或2所述的动力传递装置,其特征在于,通过所述导向套筒,所述转子相对于所述定子被定心。
4.一种动力传递装置的装配方法,该动力传递装置具有电动机和传动机构,其中,所述电动机具有在定子的内周侧相对于该定子呈同心圆状配置的转子,所述传动机构用于传递动力,所述动力传递装置的装配方法的特征在于,
在所述传动机构中的一个规定结构构件的一部分以其中心轴线对齐所述定子或转子的中心轴线的方式,向所述定子或转子一侧突出的状态下,安装所述传动机构,并将导向套筒嵌合于该突出部分的外周侧,再将所述转子嵌合在该导向套筒的外周侧的同时使其沿该导向套筒向轴线方向移动,从而将所述转子旋转自如地安装在与定子相同的轴线上,之后从所述突出部分拔下所述导向套筒。
5.如权利要求4所述的动力传递装置的装配方法,其特征在于,通过所述动力传递装置的壳体或与该壳体成一体的构件,旋转自如地支承所述转子沿轴线方向的两端部之后,从所述突出部分拔下所述导向套筒。
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