CN107042753B - 用于车辆的动力传递装置 - Google Patents

用于车辆的动力传递装置 Download PDF

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Publication number
CN107042753B
CN107042753B CN201710066143.6A CN201710066143A CN107042753B CN 107042753 B CN107042753 B CN 107042753B CN 201710066143 A CN201710066143 A CN 201710066143A CN 107042753 B CN107042753 B CN 107042753B
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China
Prior art keywords
rotary shaft
tolerance ring
ring
outlet side
oil
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CN201710066143.6A
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CN107042753A (zh
Inventor
藤井広太
田端淳
铃木晴久
奥田弘一
舘野啓之
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Toyota Motor Corp
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Toyota Motor 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
    • 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
    • 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
    • B60K6/26—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 motors or the generators
    • 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
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • 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
    • 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
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • 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
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • 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
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • F16D1/0829—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial loading of both hub and shaft by an intermediate ring or sleeve
    • F16D1/0835—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial loading of both hub and shaft by an intermediate ring or sleeve due to the elasticity of the ring or sleeve
    • 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
    • F16H57/00—General details of gearing
    • F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
    • 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
    • B60K2006/381—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 characterized by driveline brakes
    • 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
    • B60K6/36—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 transmission gearings
    • B60K6/365—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 transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract

提供了一种用于车辆的动力传递装置。公差环插入在输出侧旋转轴与转子轴之间。因此，即使在没有消除在输出侧旋转轴与转子轴之间的花键配合部中形成的间隙的情况下，输出侧旋转轴和转子轴这两个旋转轴也在没有间隙的情况下由公差环保持，并且可以抑制咔哒噪声。用于在公差环的环形部与输出侧旋转轴之间供应润滑油的供油槽设置于形成在输出侧旋转轴中的环形槽内。于是，可以在不对公差环进行特别加工的情况下抑制公差环的耐久性的下降。

Description

用于车辆的动力传递装置
技术领域
本发明涉及一种设置在车辆中的动力传递装置。特别地，本发明涉及一种用于抑制由动力传递路径上的间隙所引起的咔哒噪声的构造的改进。
背景技术
已知由于在构成设置在车辆中的动力传递装置的旋转轴之间的具有齿隙的彼此面对的齿之间的碰撞而发生咔哒噪声，并且提出了用于抑制咔哒噪声的措施。例如，在国际公开第WO 2013/080311号(WO 2013/080311 A)的动力传递装置中，第二电动机的转子轴构成了从发动机至驱动轮的动力传递路径的一部分。从而，由于发动机的直接传递的转矩被传递至转子轴，所以即使第二电动机的转矩几乎为零，但在发动机的驱动期间，转子轴的花键齿仍压靠着另一旋转轴的花键齿。由此，消除了转子轴的花键齿与所述另一旋转轴的花键齿之间的齿隙，并且抑制了咔哒噪声。
另一方面，在WO 2013/080311 A的动力传递装置中，虽然能够消除动力传递路径上的第二电动机的转子轴的上游侧(发动机侧)的间隙，但不能消除在布置于第二电动机的下游侧(驱动轮侧)的变速器的输入轴与第二电动机的转子轴之间形成的间隙。由此，如果输入至变速器的转矩变得几乎为零，则可能由于在第二电动机的转子轴与变速器的输入轴之间形成的间隙而发生咔哒噪声。
作为抑制咔哒噪声的措施，考虑了以下情况：公差环设置在第二电动机的转子轴与变速器的输入轴之间，并且调节了第二电动机的转子轴与变速器的输入轴的相对旋转。即，考虑了以下情况：公差环介于转子轴与输入轴之间，并且在到输入轴的输入转矩不超过预定值的情形下，转子轴和输入轴通过公差环一体地旋转。
发明内容
然而，即使在设置了公差环的构造中，由于从第二电动机的转子轴传递至变速器的输入轴的转矩的波动，公差环相对于旋转轴(例如，变速器的输入轴)反复地轻微滑动(例如，在间隙没有消除的范围内在旋转方向上滑动)。例如，在车辆所需的行驶驱动动力小等的行驶状态下，例示了通过第二电动机的转子轴传递至变速器的输入轴的转矩由于发动机转矩的轻微波动而波动的情况等。在公差环反复轻微滑动的情况下，磨损可能在公差环的滑动部等中发生，并且公差环的耐久性可能下降。
作为用于提高公差环的耐久性的手段，考虑了执行用于在公差环中形成供油孔以提高润滑性等的加工的情况；然而，在这种情况下，存在对引起公差环的刚度不足的担忧。
本发明提供一种能够在不对公差环执行特殊加工(可能导致刚度不足等的加工)的情况下抑制用于抑制咔哒噪声的公差环的耐久性的下降的结构。
本发明的第一方案为一种用于车辆的动力传递装置。所述动力传递装置包括第一旋转轴、第二旋转轴、花键配合部和公差环。所述花键配合部被构造成在从动力源至驱动轮的动力传递路径的一部分中将所述第一旋转轴和所述第二旋转轴花键配合。所述公差环设置在如下位置处：在所述位置处，所述第一旋转轴插入所述第二旋转轴中并且所述位置与所述花键配合部不同。所述公差环包括环形部和突起。所述环形部被构造成与所述第一旋转轴和所述第二旋转轴中的一个接触。所述突起被构造成与所述第一旋转轴和所述第二旋转轴中的另一个接触。所述第一旋转轴和所述第二旋转轴中的所述一个设置有槽。所述槽被构造成将润滑油供应至所述公差环的所述环形部所接触的区域。
根据该动力传递装置，公差环设置在第一旋转轴与第二旋转轴之间，由此即使在没有消除第一旋转轴与第二旋转轴之间的间隙的情况下，也可以由公差环以无间隙的方式保持第一旋转轴和第二旋转轴这两者。由此，能够抑制花键配合部中的咔哒噪声。槽(用于向公差环的环形部接触的区域供应润滑油的槽)设置于在第一旋转轴与第二旋转轴之间公差环的环形部所接触的旋转轴中，由此在公差环的环形部与旋转轴之间供应润滑油。因此，即使引起了公差环相对于旋转轴(公差环的环形部接触的旋转轴)反复地轻微滑动(沿旋转方向的滑动)的情形，也可以抑制公差环的环形部的磨损，并且可以抑制公差环的耐久性的下降。即，可以在不对公差环执行特殊加工的情况下抑制公差环的耐久性的下降。
在所述动力传递装置中，所述槽可以沿着所述第一旋转轴和所述第二旋转轴中的所述一个旋转轴的周向延伸。
根据所述动力传递装置，能够在公差环的周向上的宽广范围内在公差环的环形部和旋转轴(与公差环的环形部接触的旋转轴)之间供应润滑油。因此，可以充分发挥抑制公差环的环形部的磨损的效果，并且可以可靠地抑制公差环的耐久性的下降。
在所述动力传递装置中，所述槽可以设置在所述第一旋转轴和所述第二旋转轴中的所述一个旋转轴的所述周向上的整个圆周上。
根据所述动力传递装置，槽设置在旋转轴(与公差环的环形部接触的旋转轴)的周向上的整个圆周上，由此，即使公差环在周向上相对于旋转轴偏移，也可以在公差环的环形部与旋转轴之间的整个圆周上供应润滑油。因此，可以在不受偏移的影响的情况下抑制公差环的环形部的磨损。
在所述动力传递装置中，所述公差环可以在所述周向上的一部分中具有至少一个切口。
根据所述动力传递装置，公差环的切口用作在公差环与旋转轴(与公差环的环形部接触的旋转轴)之间供应的润滑油的排出口。因此，有效地执行了诸如磨损粉屑等的异物从切口的排出，并且通过润滑油的流动满意地执行了公差环的冷却。于是，可以抑制公差环的耐久性的下降。
在所述动力传递装置中，所述第一旋转轴和所述第二旋转轴中的所述一个可以具有供油孔，所述供油孔可以被构造成向所述槽供应所述润滑油，并且所述供油孔的数量可以大于所述公差环的所述至少一个切口的数量。
在公差环的切口的位置与一个供油孔的位置重叠的情况下，从供油孔供应的润滑油可能不供应至槽，而是可能从切口排出。然而，根据所述动力传递装置，由于供油孔的数量大于切口的数量，所以其它供油孔的位置不与切口的位置重叠。因此，从供油孔(不与切口的位置重叠的供油孔)供应的润滑油被满意地供应至槽。相应地，即使公差环在周向上相对于旋转轴(与公差环的环形部接触的旋转轴)偏移，也可以在公差环的环形部与旋转轴之间供应润滑油，并且可以抑制公差环的环形部的磨损。此外，当将公差环组装在第一旋转轴中时，不需要在确认切口的位置不与供油孔的位置重叠的同时进行组装的操作，并且提高了组装可操作性。
附图说明
下面将参照附图描述本发明的示例性实施例的特征、优点以及技术和工业意义，其中相同的附图标记表示相同的元件，并且其中：
图1是图示了应用本发明的用于混合动力车辆的动力传递装置的示意图；
图2是自动变速器的接合工作表；
图3是在直线上示出了动力传递装置中的相应各个旋转元件的转速的相对关系的列线图，所述相应各个旋转元件针对每个变速档位具有不同接合状态；
图4是示出了动力传递装置的一部分的截面图；
图5是示出了公差环的形状的图示；
图6是以放大比例示出了公差环在输出侧旋转轴中的安装位置的图示；
图7是沿图4中的线A-A截取的第一承插接合部的截面图以及从径向外侧观察时的第一承插接合部的图示；
图8是第二变形例中的输出侧旋转轴的截面图以及从径向外侧观察时的输出侧旋转轴的图示；并且
图9是示出了第三变形例中的公差环的形状的图示。
具体实施方式
在下文中，将参照附图详细描述本发明的实施例。
图1是图示了应用本发明的用于混合动力车辆的动力传递装置10。在图1中，动力传递装置10在作为附接至车身的非旋转构件的变速器壳12(在下文中，称为壳12)中在公共轴线C上串联地包括输入轴14、差动单元11(电子式差动单元)、自动变速器20以及输出轴22，输入轴14作为输入旋转构件，差动单元11(电子式差动单元)作为直接或通过脉动吸收减振器(脉动衰减装置)(未示出)等间接地联接至输入轴14的无级变速单元，自动变速器20通过传递构件18串联地联接在从差动单元11至驱动轮(未示出)的动力传递路径上，输出轴22作为联接至自动变速器20的输出旋转构件。动力传递装置10适当地用于(例如)动力传递装置10纵向地安装在车辆上的发动机前置后轮驱动(FR)车辆中。动力传递装置10设置在发动机8与驱动轮之间，发动机8为诸如汽油机或柴油机的内燃机，作为直接或通过脉动吸收减振器(未示出)间接地联接至输入轴14的行驶用的动力源。来自发动机8的输出(动力)依次通过构成动力传递路径的一部分的差动齿轮装置(终减速机构)(未示出)、车桥等传递至驱动轮。
以这种方式，在本实施例的动力传递装置10中，发动机8与差动单元11直接联接到彼此。发动机8与差动单元11彼此直接联接意味着在没有经过诸如变矩器或液力偶合器的液力动力传递装置而进行联接。例如，通过脉动吸收减振器等进行联接。
差动单元11包括第一电动机MG1、差动行星齿轮装置24、第二电动机MG2和固定制动器B0，第一电动机MG1用作控制输入轴14和传递构件18(输出轴)的差动状态的差动电动机，差动行星齿轮装置24作为将发动机8的输出分配至第一电动机MG1和传递构件18的差动机构，第二电动机MG2被联接成与用作输出轴的传递构件18一体地旋转，固定制动器B0用于使输入轴14的旋转停止。本实施例的第一电动机MG1和第二电动机MG2是具有发电功能的所谓的电动发电机。第一电动机MG1至少包括用于产生反作用力的发电机(发电)功能，并且第二电动机MG2至少包括用作用于行驶的电动机的电机(电动机)功能，所述电动机被配置成输出作为用于行驶的驱动力源的驱动力。
用作差动机构的差动行星齿轮装置24是单小齿轮型，并且包括太阳齿轮S0、小齿轮P0、行星架CA0和齿圈R0作为旋转元件。
在差动行星齿轮装置24中，行星架CA0联接至输入轴14即发动机8以构成第一旋转元件RE1，太阳齿轮S0联接至第一电动机MG1以构成第二旋转元件RE2，并且齿圈R0联接至传递构件18以构成第三旋转元件RE3。如上构造的差动行星齿轮装置24将发动机8的输出分配至第一电动机MG1和传递构件18。利用发动机8的输出的分配部分，对由第一电动机MG1发电所得的电能进行存储，或者可旋转地驱动第二电动机MG2。由此，差动单元11用作电子式差动装置。例如，差动单元11处于所谓的无级变速状态，由此传递构件18的转速能够与发动机8的转速不相关地连续改变。
自动变速器20是行星齿轮型多档位(multistage)变速器，其包括单小齿轮型第一行星齿轮装置26和单小齿轮型第二行星齿轮装置28，并且用作有级自动变速器。第一行星齿轮装置26包括第一太阳齿轮S1、第一小齿轮P1、第一行星架CA1和第一齿圈R1。第二行星齿轮装置28包括第二太阳齿轮S2、第二小齿轮P2、第二行星架CA2和第二齿圈R2。
在自动变速器20中，第一太阳齿轮S1通过第一制动器B1选择性地联接至壳12。在自动变速器20中，第一行星架CA1和第二齿圈R2一体地联接，以通过第二离合器C2联接至传递构件18并且通过第二制动器B2联接至壳12。在自动变速器20中，第一齿圈R1和第二行星架CA2一体地联接以联接至输出轴22。在自动变速器20中，第二太阳齿轮S2通过第一离合器C1选择性地联接至传递构件18。在自动变速器20中，第一行星架CA1和第二齿圈R2通过单向离合器F1联接至壳12。
在自动变速器20中，根据第一离合器C1、第二离合器C2、固定制动器B0、第一制动器B1和第二制动器B2的接合状态，选择性地建立了多个变速档位。各离合器C1、C2和各制动器B0、B1、B2的接合状态与由所述接合状态建立的变速档位之间的关系在图2的接合工作表中示出。
当利用第一电动机MG1和第二电动机MG2驱动车辆时，固定制动器B0被接合。如果固定制动器B0被接合，则输入轴14停止旋转，并且第一电动机MG1的反作用转矩从传递构件18输出。相应地，实现了除第二电动机MG2之外还利用第一电动机MG1进行驱动。通过释放第一离合器C1、第二离合器C2、第一制动器B1和第二制动器B2，自动变速器20进入空档状态。
图3是示出了动力传递装置10中的相应各个的旋转元件的转速的相对关系的列线图，相应各个旋转元件针对每个变速档位具有不同的接合状态。图3的列线图为具有水平轴和垂直轴的二维坐标，其中水平轴表示各个行星齿轮装置24、26、28的变速比的关系，垂直轴表示相对转速。在三条水平线中，下水平线X1表示为零的转速，上水平线X2表示为“1.0”的转速，即，联接至输入轴14的发动机8的转速Ne，并且X3表示从差动单元11至自动变速器20的第三旋转元件RE3的转速。
图3中所示的垂直线Y1、Y2、Y3对应于构成差动单元11的差动行星齿轮装置24的三个元件。垂直线Y1、Y2、Y3分别表示第二旋转元件RE2、第一旋转元件RE1和第三旋转元件RE3的相对转速。垂直线Y1、Y2、Y3之间的间隔根据差动行星齿轮装置24的变速比确定。
自动变速器20的四个垂直线Y4、Y5、Y6、Y7分别表示对应于第四旋转元件RE4的第二太阳齿轮S2、对应于第五旋转元件RE5的第一齿圈R1和第二行星架CA2、对应于第六旋转元件RE6的第一行星架CA1和第二齿圈R2以及对应于第七旋转元件RE7的第一太阳齿轮S1的相对转速。垂直线Y4、Y5、Y6、Y7之间的间隔分别根据第一行星齿轮装置26和第二行星齿轮装置28的变速比来确定。
如图3的列线图中所示，差动单元11是处于第一旋转元件RE1至第三旋转元件RE3可相对旋转的差动状态中。在直线L0与垂直线Y3的交点处表示的齿圈R0的转速由车速V限制为恒定的情况下，控制了第一电动机MG1的转速。于是，如果在直线L0和垂直线Y1的交点处表示的太阳齿轮S0的转速增大或减小，则在直线L0和垂直线Y2的交点处表示的行星架CA0的转速(即，发动机转速Ne)增大或减小。
如果通过控制第一电动机MG1的转速而使太阳齿轮S0具有与发动机转速Ne相同的转速来使得差动单元11的变速比固定为“1.0”，则直线L0与水平线X2相一致。然后，齿圈R0即传递构件18以与发动机转速Ne相同的转速旋转。可替代地，如果通过控制第一电动机MG1的转速而使太阳齿轮S0的转速变为零来使得差动单元11的变速比固定为小于“1.0”的值(例如，约“0.7”)，则传递构件18以高于发动机转速Ne的速度旋转。例如，如由直线L0R所表示的，第二电动机MG2反向旋转，联接至齿圈R0的传递构件18以低于零的转速旋转。
在自动变速器20中，可以建立包括第一变速档位1st至第四变速档位4th的前进变速或倒车变速档位的有级变速。在图3中，1st表示第一变速档位中的各旋转元件的转速的关系。2nd表示第二变速档位中的各旋转元件的转速的关系。3rd表示第三变速档位中的各旋转元件的转速的关系。4rd表示第四变速档位中的各旋转元件的转速的关系。Rev表示在倒车变速档位中的各个旋转元件的转速的关系。
图4是示出了动力传递装置10的一部分的截面图。图4示出了主要用作差动单元11的输出轴的传递构件18和联接至传递构件18的第二电动机MG2中的每一个的截面。传递构件18包括联接至差动行星齿轮装置24的齿圈R0的输入侧旋转轴30、用作自动变速器20的输入轴的输出侧旋转轴32和第二电动机MG2的转子轴34。输入侧旋转轴30、输出侧旋转轴32和转子轴34全部绕同一轴线C布置。输出侧旋转轴32对应于本发明的第一旋转轴，并且转子轴34对应于本发明的第二旋转轴。
输入侧旋转轴30和输出侧旋转轴32布置在当从径向外侧观察时在轴线C的方向上彼此分离的位置处，并且第二电动机MG2的转子轴34将输入侧旋转轴30和输出侧旋转轴32联接。
第二电动机MG2的转子轴34形成为圆筒形，并且布置成覆盖在轴线C的方向上彼此面对的输入侧旋转轴30和输出侧旋转轴32的外周端部(末端部)(使得各个旋转轴30、32被插入)。转子轴34被构造成使得轴线C的方向上的一端通过轴承35a由联接至壳12的电动机罩37可旋转地支撑，并且轴线C的方向上的另一端通过轴承35b由壳12可旋转地支撑。输出侧旋转轴32通过轴承36等由壳12可旋转地支撑。
在输入侧旋转轴30中，在轴线C的方向上面向输出侧旋转轴32的一侧(图中的右侧)的外周部中形成外周齿38。在输出侧旋转轴32中，与输入侧旋转轴30的外周齿38具有相同形状的外周齿40形成在轴线C的方向上面向输入侧旋转轴30的一侧(图中的左侧)的外周部中。在第二电动机MG2的圆筒形转子轴34的内周侧上，形成有花键配合至外周齿38和外周齿40的内周齿42。输入侧旋转轴30的外周齿38和转子轴34的内周齿42花键配合，并且输出侧旋转轴32的外周齿40和转子轴34的内周齿42花键配合。输入侧旋转轴30的外周齿38和转子轴34的内周齿42彼此花键配合，由此形成了将输入侧旋转轴30与转子轴34联接以便传递动力的花键配合部50。在前述的花键配合部50中，在外周齿38与内周齿42之间形成有齿隙，并且在所述齿隙之间允许输入侧旋转轴30与转子轴34的相对旋转。输出侧旋转轴32的外周齿40和转子轴34的内周齿42彼此花键配合，由此形成了将输出侧旋转轴32与转子轴34联接以便传递动力的花键配合部52。在花键配合部52中，在外周齿40与内周齿42之间形成有齿隙，并且在所述齿隙之间允许输出侧旋转轴32与转子轴34的相对旋转。花键配合部52对应于本发明的花键配合部。以这种方式，根据本实施例的动力传递装置10在从作为动力源的发动机8至驱动轮的动力传递路径的一部分中包括通过将输出侧旋转轴(第一旋转轴)32和转子轴(第二旋转轴)34花键配合而形成的花键配合部52。
第二电动机MG2的转子46固定至转子轴34的外周部，并且第二电动机MG2的定子48布置在转子46的外周侧上。
在如上构造的动力传递装置10中，如果发动机8的转矩(输出)被传递至输入侧旋转轴30，则该转矩通过输入侧旋转轴30与转子轴34之间的花键配合部50传递至转子轴34。此外，转矩通过转子轴34和输出侧旋转轴32的花键配合部52传递至输出侧旋转轴32。相应地，即使在转矩不从第二电动机MG2输出的状态下，仍消除了在输入侧旋转轴30与转子轴34的花键配合部50中形成的间隙。
另一方面，在输入至自动变速器20的转矩变为零的情况下，由于没有消除在转子轴34与输出侧旋转轴32之间形成的间隙，因此在转子轴34与输出侧旋转轴32之间可能出现咔哒噪声。为了消除该问题，在本实施例中，公差环54于花键配合部52附近插入在转子轴34与输出侧旋转轴32之间。
环形槽56在输出侧旋转轴32的外周部中形成，并且公差环54容纳在由环形槽56形成的环形空间中。图5示出了公差环54的形状。
图5中所示的公差环54由金属(例如，弹簧钢)制成，并且形成为在周向的一部分中具有切口62的大致环形形状。公差环54包括形成为大致环形形状的环形部64和从环形部64在径向上向外突起的多个向外突起66。环形部64在周向的一部分中具有切口62并且由此能够预先弹性变形并配合至输出侧旋转轴32。向外突起66对应于本发明的突起。
向外突起66布置在环形部64的在宽度方向(图5的左视图中的左右方向)上的中央，并且在组装后与转子轴34接触。向外突起66等角度地布置在周向上，并且平坦表面68在周向上相邻的向外突起66、66之间形成。平坦表面68用作环形部64的一部分。向外突起66在从轴线C的方向上观察时形成为梯形形状，并且在组装后与转子轴34的内周面接触的接触表面70在径向外侧上形成。公差环54通过冲压一钢板而成型，并且如由图5中的虚线所示，在每个向外突起66的后侧形成有空间。公差环54的硬度设定为低于输出侧旋转轴32的外周面和转子轴34的内周面的硬度的值。
公差环54被设计成使得在环形部64的内周面与输出侧旋转轴32的环形槽56的外周面之间发生滑动，而在每个向外突起66的接触表面70与转子轴34的内周面(下面描述的内周承插面80)之间不发生滑动。例如，公差环54的环形部64与输出侧旋转轴32接触的总面积大于公差环54的每个向外突起66的接触表面70与转子轴34接触的总面积。
以这种方式，公差环54设置在如下位置处：在该位置处，输出侧旋转轴(第一旋转轴)32插入转子轴(第二旋转轴)34中，并且该位置与花键配合部52不同。公差环54具有与输出侧旋转轴(第一旋转轴；本发明的一个旋转轴)32接触的环形部64和与转子轴(第二旋转轴；本发明的另一旋转轴)34接触的向外突起(突起)66。
返回至图4，在与公差环54的环形部64接触的输出侧旋转轴32内，形成了与轴线C平行的轴向油路72和将轴向油路72和环形槽56(环形空间)连通的第一径向油路74。在输出侧旋转轴32中，形成了将轴向油路72和在壳12内形成的供应油路73连通的第二径向油路75。
如图6中所示(以放大比例示出了公差环54在输出侧旋转轴32中的安装位置的图示)，本实施例具有的特征在于，在输出侧旋转轴(与公差环54的环形部64接触的旋转轴)32的周向上延伸的供油槽79在输出侧旋转轴32的整个周向(环形槽56的整个周向；整周)上设置在环形槽56的底部处。供油槽79设置在环形槽56的在宽度方向(沿轴线C的方向)上的中央位置处，并且具有开口74a，该开口74a是第一径向油路74的下游端。开口74a对应于本发明的供油孔(用于向供油槽79供应润滑油的供油孔)。供油槽79的宽度(沿轴线C的方向上的尺寸)设定为小于环形槽56的底部的宽度且大于第一径向油路74的开口74a的内径。供油槽79对应于本发明的槽。供油槽79的宽度(沿轴线C的方向上的尺寸)设定为小于每个向外突起66的宽度。于是，环形槽56的外周面的一部分面向在每个向外突起66的后侧上形成的空间。
因此，从液压控制回路(未图示)供应至壳12的供应油路73的润滑油通过第二径向油路75、轴向油路72和第一径向油路74到达供油槽79，供油槽79填充有润滑油。所供应的润滑油润滑公差环54(润滑公差环54的环形部64与输出侧旋转轴32中的环形槽56的外周面之间的空间)，清洗由于公差环54的磨损而产生的磨损粉屑，或者冷却公差环54。润滑公差环54的润滑油经过切口62，并且通过在输出侧旋转轴32中形成的槽86(下文描述)排出。润滑油还被供应至在公差环54的每个向外突起66的后侧上形成的空间，并且该空间用作润滑油的存储部。
具体而言，供应至供油槽79的内部的大部分润滑油流入在每个向外突起66的后侧上形成的空间中，并且润滑环形槽56的面向该空间的外周面。公差环54的环形部64与环形槽56的外周面接触。然后，如下所述，在公差环54相对于输出侧旋转轴32轻微滑动的情况下，环形槽56的面向该空间(润滑油所流入的空间)的外周面相对于公差环54相对地旋转(相对地旋转对应于滑动的量)。然后，直到那时还未被润滑的环形槽56的外周面(不面向润滑油)面向该空间并且由润滑油润滑。重复这种滑动，由此环形槽56的大部分外周面由润滑油润滑。即，环形槽56的外周面与公差环54的环形部64的内周面之间的空间由润滑油润滑。
以这种方式，供油槽(槽)79设置在输出侧旋转轴32的表面中(具体而言，设置在输出侧旋转轴32中形成的环形槽56的表面中)，输出侧旋转轴32作为在输出侧旋转轴(第一旋转轴轴)32和转子轴(第二旋转轴)34之中与公差环54的环形部64接触的旋转轴。润滑油供应至输出侧旋转轴32中的与公差环54的环形部64接触的区域。
在输出侧旋转轴32中，第一外周承插面76在轴线C的方向上形成在外周齿40与容纳公差环54的环形槽56之间。在输出侧旋转轴32中，第二外周承插面78在轴线C方向上相对于环形槽56形成在与第一外周承插面76的位置相对的一侧(在图4中的右侧)的位置处。即，公差环54在轴线C的方向上布置在第一外周承插面76与第二外周承插面78之间。
在转子轴34的内周侧上，形成了在组装后配合至第一外周承插面76和第二外周承插面78的内周承插面80。内周承插面80被设定为具有在组装后在轴线C方向上能够与第一外周承插面76和第二外周承插面78配合的长度。
如果第一外周承插面76和内周承插面80配合，则第一外周承插面76的尺寸和内周承插面80的尺寸(尺寸公差)被设定为使得第一外周承插面76与内周承插面80无间隙地配合。如果第二外周承插面78和内周承插面80配合，则第二外周承插面78的尺寸和内圆周承插面80的尺寸(尺寸公差)被设定为使得第二外周承插面78与内圆周承插面80无间隙地配合。在图4中，第一外周承插面76与内周承插面80配合的部分被定义为第一承插接合部82，并且第二外周承插面78与内周承插面80配合的部分被定义为第二承插接合部84。
第一承插接合部82和第二承插接合部84两者具有相同的尺寸关系。即，第一外周承插面76和第二外圆周承插面78的外径彼此相等，并且也等于内周承插面80的孔的直径。第一承插接合部82和第二承插接合部84在公差环54的在轴线C的方向上的两侧形成。由于第一承插接合部82和第二承插接合部84具有高气密性，所以润滑油容易积聚在由输出侧旋转轴32的环形槽56所形成的环形空间中。
第一承插接合部82和第二承插接合部84如上构造，由此可以防止输出侧旋转轴32的偏移。因此，可以减小由偏移引起的公差环54的偏心负荷。
图7的左侧是沿图4中的A-A线截取的第一承插接合部82的截面图。图7的右侧是从径向外侧观察时第一承插接合部82的图示。如图7中所示，如果在轴线C的方向上观察第一外周承插面76，则在第一外周承插面76中，经过轴线C的方向上两侧的平行于轴线C的多个(在本实施例中为四个)槽86等角度地形成。槽86形成在第一外周承插面76中，由此在第一承插接合部82中形成间隙，并且该间隙用作环形空间中的润滑油排出口。即，通过轴向油路72、第一径向油路74和供油槽79供应至公差环54的润滑油在润滑公差环54之后通过槽86排出。
公差环54在组装之后在输出侧旋转轴32与转子轴34之间被压缩和变形，并且在输出侧旋转轴32与公差环54的接触表面与转子轴34与公差环54的接触表面之间产生了用于垂直地挤压彼此的面的挤压力。由于基于所产生的挤压力和接触表面之间的摩擦系数而产生了摩擦阻力，所以转子轴34和输出侧旋转轴32由公差环54在周向上没有间隙地保持。因此，即使在没有消除花键配合部52中的间隙的状态下，转子轴34和输出侧旋转轴32也由公差环54没有间隙地保持。因此，抑制了在花键配合部52中产生的咔哒噪声。
由于从第二电动机MG2的转子轴34传递至输出侧旋转轴32的转矩的波动，公差环54相对于输出侧旋转轴32反复轻微地滑动(例如，在不消除间隙的范围内在旋转方向上滑动)。例如，在车辆所需的行驶驱动动力较小等的行驶状态下，例证了如下情形：由于发动机转矩的轻微波动等，通过第二电动机MG2的转子轴34向输出侧旋转轴32传递的转矩轻微波动。即使如上所述在本实施例中公差环54反复轻微滑动的情形下，供油槽79形成在与公差环54的环形部64接触的输出侧旋转轴32(在输出侧旋转轴32中形成的环形槽56)中，由此润滑油被供应至公差环54的环形部64与输出侧旋转轴32之间。因此，可以抑制公差环54的环形部64的磨损，并抑制公差环54的耐久性的下降。即，可以在不执行用于在公差环54中形成供油孔的特殊加工等的情况下抑制公差环54的耐久性的下降。因此，可以在不导致公差环54的刚度的不足或者不利地影响公差环54的功能(调节转子轴34和输出侧旋转轴32的相对旋转的功能)的情况下抑制公差环54的耐久性的下降。
根据本实施例，由于供油槽79设置在输出侧旋转轴32的整个周向上，所以能够在公差环54的环形部64与输出侧旋转轴32之间于公差环54的周向上的宽广范围内供应润滑油。因此，可以充分地发挥抑制公差环54的环形部64的磨损的效果，并且可以可靠地抑制公差环54的耐久性的下降。
根据本实施例，切口62在配合至输出侧旋转轴32的外周的状态下形成在周向上的一部分中，并且切口62用作在公差环54与输出侧旋转轴32之间供应的润滑油的排出口。因此，有效地执行了诸如磨损粉屑的异物从切口62排出，并且通过润滑油的流动满意地执行了公差环54的冷却。于是，也可以抑制公差环54的耐久性的下降。
根据本实施例，第一径向油路74在与公差环54的环形部64接触的输出侧旋转轴32中形成，由此润滑油也被供应至在公差环54的每个向后突起66的后侧形成的空间。相应地，可以使该空间用作润滑油的存储部。
根据本实施例，由于槽86在作为润滑油排出口作用的第一承插接合部82中形成，因此到达第一承插接合部82的润滑油通过槽86排出，并且提高了润滑油的排出性。于是，提高了公差环54的冷却性能。
接下来，将描述第一变形例。该变形例是第一径向油路(将轴向油路72与供油槽79连通的油路)74的变形例，并且由于其他构造与上述实施例中的构造相同，因此将主要描述第一径向油路74。
在上述实施例中，第一径向油路74的开口74a仅在一处形成。相反，在本变形例中，第一径向油路74在两处形成，并且在供油槽79中形成的开口74a在两处形成。例如，将轴向油路72与供油槽79连通的第一径向油路74、74在输出侧旋转轴32的周向上相移180°的相应位置处形成，并且开口74a、74a在相移180°的相应位置处形成。例如，在相对于图6中所示的一个第一径向油路74的开口74a的形成位置相移180°的位置处(设置在图6中的深侧的供油槽79)，形成了另一个第一径向油路74的开口74a。即，尽管公差环54的切口62在一处形成，但第一径向油路74(第一径向油路74的开口74a)在两处形成。该构造对应于本发明的“用于向所述槽供应所述润滑油的供油孔的数量大于所述公差环的所述切口的数量”。
以这种方式，如果第一径向油路74的开口74a在两处形成，则在公差环54的切口62的位置与一个第一径向油路74的开口74a的形成位置重叠的情况下，从第一径向油路74供应的润滑油可能不供应至供油槽79，而是可能从切口62排出。然而，由于第一径向油路74的开口74a的数量(在本变形例中为两个)比切口62的数量(在本变形例中为一个)多，因此该另一个第一径向油路74的开口74a的形成位置不与切口62的位置重叠。因此，从第一径向油路(不与切口62的位置重叠的第一径向油路)74供应的润滑油被满意地供应至供油槽79。因此，即使公差环54在周向上相对于输出侧旋转轴32偏移，也可以在公差环54的环形部64与输出侧旋转轴32之间供应润滑油，并且可以抑制公差环54的环形部64的磨损。当将公差环54组装在输出侧旋转轴32中时，无需在确认切口62的位置不与第一径向油路74的位置重叠的同时进行组装的操作，并且提高了组装的可操作性。
接下来，将描述第二变形例。在该变形例中，设置在输出侧旋转轴32中的供油槽的构造与上述实施例中的构造不同。由于其他构造与上述实施例中的构造相同，因此将主要描述供油槽的构造。
在上述实施例中，供油槽79在输出侧旋转轴32的周向上延伸。与之相比，在本变形例中，如图8(左侧为输出侧旋转轴32的剖视图，并且右侧为从径向外侧观察输出侧旋转轴32时的图示；公差环54由虚线表示)中所示，供油槽79A在沿着轴线C的方向上延伸，并且多个供油槽79A在周向上间断性地设置。
如图8中所示，本变形例中的多个供油槽79A在周向上以与向外突起66的周向间距相同的间距设置在多处。因此，供应至供油槽79A的润滑油分别被供应至向外突起66的后侧，并且润滑油被供应至公差环54的环形部64与输出侧旋转轴32之间。在本示例中，作为用于向各供油槽79A供应润滑油的构造，例如，例证了设置有对应于相应的各个供油槽79A的多个径向油路(将轴向油路72与相应的各个供油槽79A连通的径向油路)的构造。
在本变形例中，如在上述实施例中，即使引起了公差环54相对于输出侧旋转轴32反复轻微滑动的情形，也可以抑制公差环54的环形部64的磨损，并且可以抑制公差环54的耐久性的下降。即，可以在不执行用于在公差环54中形成供油孔的特殊加工等的情况下抑制公差环54的耐久性的下降。因此，可以在不会引起公差环54的刚度的不足或者不利地影响公差环54的功能(调节转子轴34与输出侧旋转轴32的相对旋转的功能)的情况下抑制公差环54的耐久性的下降。
接下来，将描述第三变形例。该变形例是公差环的变形例，并且由于其他构造与上述实施例的构造相同，因此将主要描述公差环的构造。
图9示出了根据本变形例的公差环140的形状。公差环140由金属(例如，弹簧钢)制成，并且形成为在周向的一部分中具有切口142的大致环形形状。公差环140包括形成为大致环形形状的环形部144和从环形部144在径向上向外突起的多个向外突起146。向外突起146布置在环形部144的宽度方向(图9的左边视图中的左右方向)上的中央。向外突起146在周向上等角度地布置，并且平坦表面148在周向上形成在相邻的向外突起146之间。平坦表面148用作环形部144的一部分。
如图9中所示，本实施例的向外突起146在从径向外侧观察时形成为斜齿形状。即，当从径向外侧观察时，向外突起146分别相对于环形部144的宽度方向倾斜地布置。具体而言，当从径向外侧观察向外突起146时，与向外突起146的纵向方向平行地延伸的中心线L1相对于环形部144的宽度方向成预定角度倾斜。公差环140设定为使得其内周侧滑动，而在每个向外突起146的顶表面与转子轴34之间不发生滑动。
如果公差环140如上所述地形成，在公差环140与输出侧旋转轴32一体地旋转的同时，则供应至公差环140的润滑油被推出至每个向外突起146内的倾斜表面并且顺利地排出。其他功能效果与上述实施例中的功能效果相同。本变形例的公差环140适用于各变形例的构造。
尽管已经基于附图详细描述了本发明和各个变形例的实施例，但是本发明还应用于其他方面。
例如，在上述实施例以及各变形例中，尽管动力传递装置10是包括两个电动机MG1、MG2的混合型动力传递装置10，但本发明不必限于本实施例和各个变形例的混合型动力传递装置10。例如，本发明可应用于包括一个电动机的混合型动力传递装置或不包括电动机的动力传递装置。即，如果动力传递装置在从动力源至驱动轮的动力传递路径的一部分中包括通过将第一旋转轴与第二旋转轴花键配合形成的花键配合部，则可以适当地应用本发明。因此，本发明不限于转子轴34和输出侧旋转轴32的花键配合部52。
在上述实施例和各变形例中，尽管自动变速器20是包括四个前进档位的有级变速器，但是没有特别限定变速档位的数量或内部联接构造。代替有级自动变速器20，例如，可以应用包括带式无级变速器的无级变速器。
在上述实施例和各变形例中，用于向公差环54供应润滑油的流路在输出侧旋转轴32中形成。然而，在应用了具有朝向内周侧的突起的公差环的情况下，由于公差环的环形部与转子轴34的内周面接触，因此供油槽或油路在转子轴34中形成。
以上描述的各种构造仅仅是实施例，并且本发明可以在基于本领域技术人员的知识以增添了各种修改和改进的方案来执行。
本发明可应用于安装有用于抑制咔哒噪声的公差环的旋转轴的构造。

Claims (4)

1.一种用于车辆的动力传递装置，所述动力传递装置的特征在于包括：
第一旋转轴；
第二旋转轴；
花键配合部，其被构造成在从动力源至驱动轮的动力传递路径的一部分中将所述第一旋转轴和所述第二旋转轴花键配合；以及
公差环，其设置在所述第一旋转轴被插入所述第二旋转轴中的位置处，并且所述位置与所述花键配合部不同，
所述公差环包括环形部和突起，
所述环形部被构造成与所述第一旋转轴和所述第二旋转轴中的一个旋转轴接触，
所述突起被构造成与所述第一旋转轴和所述第二旋转轴中的另一个旋转轴接触，
所述第一旋转轴和所述第二旋转轴中的所述一个旋转轴被设置有槽、供油孔和轴向油路，
所述轴向油路被构造成向所述供油孔供应润滑油，
所述供油孔被构造成向所述槽供应所述润滑油，
所述槽被构造成将所述润滑油供应至所述公差环的所述环形部所接触的区域，并且
所述公差环在周向上的一部分中具有切口，所述切口将供应至所述公差环的所述环形部所接触的所述区域的所述润滑油排出。
2.根据权利要求1所述的动力传递装置，其特征在于，
所述槽沿着所述第一旋转轴和所述第二旋转轴中的所述一个旋转轴的周向延伸。
3.根据权利要求2所述的动力传递装置，其特征在于，
所述槽设置在所述第一旋转轴和所述第二旋转轴中的所述一个旋转轴的所述周向上的整个圆周上。
4.根据权利要求3所述的动力传递装置，其特征在于，
所述供油孔的数量大于所述公差环的所述切口的数量。
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