CN110481315A - 与车轮轮毂装置一体的等速万向节组件 - Google Patents

与车轮轮毂装置一体的等速万向节组件 Download PDF

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CN110481315A
CN110481315A CN201811066226.6A CN201811066226A CN110481315A CN 110481315 A CN110481315 A CN 110481315A CN 201811066226 A CN201811066226 A CN 201811066226A CN 110481315 A CN110481315 A CN 110481315A
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hub
ball
constant velocity
vehicle wheel
velocity cardan
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CN110481315B (zh
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崔元准
金羲日
郑共燮
朴基东
郑昌熙
李范宰
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Modern Auto Co Ltd
Hyundai Wia Corp
Kia Corp
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Kia Motors Corp
Hyundai Wia Corp
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00Hubs
    • B60B27/0015Hubs for driven wheels
    • B60B27/0036Hubs for driven wheels comprising homokinetic joints
    • B60B27/0042Hubs for driven wheels comprising homokinetic joints characterised by the fixation of the homokinetic joint to the hub
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00Hubs
    • B60B27/0005Hubs with ball bearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00Hubs
    • B60B27/0094Hubs one or more of the bearing races are formed by the hub
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12Torque-transmitting axles
    • B60B35/18Arrangement of bearings
    • 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
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/22Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06Ball or roller bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06Ball or roller bearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2380/00Bearings
    • B60B2380/10Type
    • B60B2380/12Ball bearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2380/00Bearings
    • B60B2380/60Rolling elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2380/00Bearings
    • B60B2380/70Arrangements
    • B60B2380/73Double track
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00Hubs
    • B60B27/0078Hubs characterised by the fixation of bearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00Purpose of invention
    • B60B2900/10Reduction of
    • B60B2900/111Weight
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00Purpose of invention
    • B60B2900/10Reduction of
    • B60B2900/112Costs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • F16C19/163Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00Articles relating to transporting
    • F16C2326/01Parts of vehicles in general
    • F16C2326/02Wheel hubs or castors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2361/00Apparatus or articles in engineering in general
    • F16C2361/41Couplings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063Fixing them on the shaft
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • F16D2003/22303Details of ball cages
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • F16D3/224Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a sphere

Abstract

一种与车轮轮毂装置一体的等速万向节组件,其可以包括:内座圈,其联接至驱动轴的端部;多个万向节滚珠,其保持在所述内座圈中;以及轮毂壳体,其容纳并且联接在其中保持有万向节滚珠的内座圈,轴承联接到轮毂壳体的外周向表面,轮毂壳体设置成用作等速万向节的外座圈和车轮轮毂装置。

Description

与车轮轮毂装置一体的等速万向节组件
技术领域
概括而言,本发明涉及一种与车轮轮毂装置一体的等速万向节组件。
背景技术
通常,在车辆中使用的万向节是一种用于在具有不同的驱动轴线角度的驱动/从动轴之间传递转动动力(扭矩)的联轴器。胡克万向节、柔性万向节等使用在具有小的动力传递角度的驱动/从动轴之间,而等速万向节使用在具有较大的动力传递角度的驱动/从动轴之间。
由于即使在驱动轴和从动轴具有较大的角度偏差的时候,等速万向节也能够以相等的速度传递动力,因此,等速万向节主要以独立的悬架的方式使用在前驱动车辆的车轴中。
在驱动车轮的传统结构中,车轮轮毂装置和等速万向节分开制造,等速万向节的外座圈穿过车轮轮毂装置以花键联接,轮毂螺母紧固至外座圈的端部,形成等速万向节与车轮轮毂装置的组件。
然而,通过花键联接组装并且由轮毂螺母紧固分开的等速万向节和车轮轮毂装置的传统配置具有这些问题:由于增加了零件的数量而因此增加重量和制造成本;由于花键联接而产生间隙;由于轮毂螺母的松动而使得质量变差。
公开于本发明背景部分的信息仅仅旨在加深对本发明的总体背景的理解,而不应当被视为承认或以任何形式暗示该信息构成已为本领域一般技术人员所公知的现有技术。
发明内容
本发明的各个方面致力于提供一种与车轮轮毂装置一体的等速万向节组件,以提供高强度的结构,同时通过减少零件的数量来减少其重量并且降低成本。
在本发明的各个方面中,提供一种与车轮轮毂装置一体的等速万向节组件,该组件包括:内座圈,其联接至驱动轴的端部;多个万向节滚珠,其保持在所述内座圈中;以及轮毂壳体,其容纳并且联接在其中保持有万向节滚珠的内座圈,轴承联接到轮毂壳体的外周向表面,轮毂壳体设置成用作外座圈和车轮轮毂装置;其中,转向节支架固定至所述轴承的周向外环;多滚道(multiple-row)的轴承滚珠组装至所述周向外环,使得这些滚道(row)的轴承滚珠分别容纳在轮毂壳体以及轴承的周向内环上;锁定螺母联接至所述轮毂壳体,以向所述周向内环施加预加载荷。
所述等速万向节组件进一步可以包括锁定环,其固定地联接至所述轮毂壳体,同时紧靠锁定螺母的侧表面;以及多个螺栓,其通过锁定环螺栓连接至所述锁定螺母。
所述轮毂壳体包括:环形的轮毂部,所述内座圈的万向节滚珠安装至所述环形的轮毂部,环形的轮毂部支撑所述内环;以及壳体部,其支撑所述外环。
所述轴承滚珠包括:外滚珠和内滚珠,所述外滚珠和内滚珠设置在所述壳体部的外周向表面上;内环,其支撑并且保持所述内滚珠;以及外环,其能够滑动地支撑所述外滚珠和内滚珠。
所述外滚珠由与所述壳体部一起形成的滚珠支撑件保持。
轮毂盖安装成联接所述环形的轮毂部和内座圈。
所述轮毂壳体在外周向侧设置有螺纹部,围绕所述螺纹部形成有多个键槽。
所述锁定螺母具有在其内周向表面上的螺纹部并且具有多个通孔;所述锁定螺母使用锁定螺母和轮毂壳体的螺纹部围绕轮毂壳体联接,从而通过调节锁定螺母与内环的紧固力,给轴承的内环施加预加载荷。
锁定环包括在其内周向表面上的多个突出部并且包括多个通孔,所述锁定环的突出部装配到形成于所述轮毂壳体的键槽中。
紧固件配置为进入所述锁定螺母的通孔和所述锁定环的通孔中以连接锁定螺母和锁定环。
所述轮毂壳体可以包括具有沟槽的轮毂部,所述万向节滚珠插入到所述沟槽中,所述轮毂部定位在轮毂壳体的整体长度(A)内,其中,至少轴承滚珠的滚道、锁定螺母以及防护罩布置在轮毂壳体的整体长度(A)内;所述内座圈的中心定位在所述轮毂部中;轮毂壳体的整体长度(A)与内座圈的中心长度(B)之间的关系满足条件“1.25≤A/B≤1.4”。
轴承滚珠的节圆直径(PCD)C与万向节滚珠的节圆直径D之间的关系可以满足条件“1.7≤C/D≤1.9”。
万向节滚珠的节圆直径(PCD)D与驱动轴的直径E之间的关系可以满足条件“2.15≤D/E≤2.35”。
根据本发明的示例性的实施方案,单个轮毂壳体配置成既用作等速万向节的外座圈,又用作车轮轮毂装置,具有以下效果:通过减少零件的数量来减少其重量并且降低制造成本;消除在动力传输期间产生的联接噪声和间隙;通过等速万向节的外座圈与车轮轮毂装置的一体的结构提供高强度结构。
另外,内座圈的中心定位在轮毂壳体的整体长度内的配置显著地减小了等速万向节在车辆的水平方向上的尺寸,这在其装配方面是有利的。
再者,满足条件“1.25≤A/B≤1.4”的配置具有以下效果:保证轮毂部的足够的辐条(spoke)厚度,从而维持轮毂壳体的强度;维持驱动轴的足够的转动角度,从而改善转向性能。
此外,满足条件“1.7≤C/D≤1.9”的配置具有以下效果:保证轴承滚珠的足够的安装空间以及轴承的足够的强度;通过防止与周边零件的干涉来提供足够的耐久性。
最后,满足条件“2.15≤D/E≤2.35”的配置具有满足驱动轴的强度和等速万向节的容许强度的效果。
本发明的方法和装置具有其它的特性和优点,这些特性和优点从并入本文中的附图和随后的实施方案中将是显而易见的,或者将在并入本文中的附图和随后的实施方案中进行详细陈述,这些附图和实施方案共同用于解释本发明的特定原理。
附图说明
图1为示出根据本发明的示例性实施方案的与车轮轮毂装置一体的等速万向节组件的立体图;
图2为示出图1的等速万向节组件的锁定螺母和锁定环分离的视图;
图3为锁定螺母和锁定环联接的部分的放大图;
图4为图1的等速万向节组件的截面图;以及
图5、图6以及图7为示出等速万向节组件的详细配置的视图。
应当理解,附图不一定是按照比例绘制,而是呈现各种特征的简化表示,以对本发明的基本原理进行说明。本发明所包括的具体设计特征(包括例如具体尺寸、方向、位置和形状)将部分地由具体所要应用和使用的环境来确定。
在这些图中,贯穿附图的多幅图,相同的附图标记表示本发明的相同或等同的部分。
具体实施方式
下面将详细参考本发明的各个实施方案,这些实施方案的示例呈现在附图中并描述如下。尽管本发明将与本发明的示例性的实施方案相结合进行描述,应当理解本说明书并非旨在将本发明限制为这些示例性的实施方案。相反,本发明旨在不但覆盖本发明的示例性的实施方案,而且覆盖可以被包括在本发明的精神和由所附权利要求所限定的范围之内的各种选择形式、修改形式、等价形式及其它实施方案。
下面将结合所附附图对本发明的示例性实施方案进行具体描述。
如图1至图4所示,根据本发明的示例性的实施方案的等速万向节组件包括内座圈10、多个万向节滚珠20以及轮毂壳体40,所述内座圈10联接到驱动轴1的端部;所述多个万向节滚珠20装配在内座圈10中;所述轮毂壳体40设置成用作外座圈和车轮轮毂装置,在其中保持有万向节滚珠20的内座圈10固定地插入到轮毂壳体40中,轴承30联接到轮毂壳体40的外周向表面。
驱动轴1配置为通过变速器从发动机向车轮传递动力。
等速万向节分为球式(ball-type)万向节和三脚架式(tripod-type)万向节。内座圈10和万向节滚珠20是球式万向节的部件。
轮毂壳体40配置成既用作等速万向节的外座圈,又用作配置为联接车轮和转向节支架的车轮轮毂装置。因此,与等速万向节的外座圈和车轮轮毂装置分开制造并且通过轮毂螺母联接在一起的相关技术相比,该轮毂壳体具有减少零件的数量、降低重量以及制造成本的优点。
换而言之,在传统的结构中,等速万向节的外座圈与车轮轮毂装置为花键联接并且通过轮毂螺母紧固。这里,花键联接和通过轮毂螺母紧固会引起包括连接噪声和间隙的产生以及轮毂螺母的松动的问题。
在另一方面,根据本发明的示例性的实施方案,轮毂壳体40自身配置成既用作等速万向节的外座圈,又用作车轮轮毂装置,从而减少零件的数量、降低重量以及制作成本,同时消除了连接噪声和间隙的产生以及轮毂螺母的松动的问题,这有利于获得高强度的结构。
轮毂壳体40包括环形的轮毂部41、壳体部42以及凸缘部43;所述环形的轮毂部41在车辆的水平方向上在其内侧端部和外侧端部处均开口,轮毂部在其内周向表面上具有沟槽41a,万向节滚珠20容纳在沟槽41a中;所述壳体部42从轮毂部41朝向车辆的外侧延伸,使得轮毂部41的外侧端部容纳在其中;所述凸缘部43从壳体部42的外侧端部径向地增大,围绕凸缘部43联接有轮盘2。
沟槽41a的数量与万向节滚珠20的数量相同。沟槽41a在车辆的水平方向上延伸。
在本发明的示例性的实施方案中,等速万向节组件进一步包括防护罩50和轮毂盖60,所述防护罩50连接在轮毂部41的内侧开口端部与驱动轴1的端侧之间;所述轮毂盖60可拆卸地联接至轮毂部41的外侧开口端部。
这里,由于驱动轴1可以穿过轮毂部41的外侧开口端部从车辆的外部朝向内侧插入并且组装,因此,可以有利于驱动轴1的组装。
轮毂部41的内部空间由防护罩50和轮毂盖60紧密地密封,以防止润滑脂的泄露和外来物质的侵入。
在本发明的示例性的实施方案中,等速万向节组件进一步包括联接至轮毂壳体40的凸缘部43的车轮导向件70。
车轮导向件70压配(press-fitted)在凸缘部43中,因此,当轮盘2联接至凸缘部43的时候,轮盘于中央处导向并且围绕车轮导向件装配。
轴承30包括轴承滚珠31、周向内环32以及周向外环33,所述轴承滚珠31包括外滚珠31a和内滚珠31b,外滚珠31a和内滚珠31b在壳体部42的外周向表面上设置在车辆的水平方向上的外侧和内侧处;所述周向内环32支撑并且保持内滚珠31b;周向外环33覆盖外滚珠31a和内滚珠31b,转向节支架3联接至周向外环33。
外滚珠31a由与壳体部42一体地形成的滚珠支撑件44固定地保持。
换而言之,转向节支架3固定至轴承30的周向外环33,轴承滚珠31的内滚珠31b和外滚珠31a组装至周向外环33,使得内滚珠31b和外滚珠31a分别容纳在轴承的周向内环32和轮毂壳体40上。
因此,根据本发明的各个方面,由于不需要用于支撑外滚珠31a的单独的部件(例如周向内环部),因此具有减少零件和制造工艺步骤的数量、降低重量以及制造成本的优点,有助于改善生产率。
另外,等速万向节组件也包括锁定螺母81、锁定环82以及多个螺栓83,所述锁定螺母81在拧紧到轮毂壳体40上的同时,向周向内环32施加预加载荷;所述锁定环82在紧靠锁定螺母81的侧表面的同时,固定地联接至轮毂壳体40;多个螺栓83通过锁定环82紧固至锁定螺母81。
换而言之,轮毂壳体40在其一侧外周向地设置有螺纹部45(例如,外螺纹部分),围绕螺纹部45形成有多个键槽46。
锁定螺母81具有在其内周向表面上的螺纹部81a(例如,内螺纹部分)以及周向地设置的多个通孔81b。
锁定环82具有在其内周向表面上的多个突出部82a,以及周向地设置的多个通孔82b。
因此,在组装期间,使用锁定螺母81的螺纹部81a和轮毂壳体40的螺纹部45将锁定螺母81围绕轮毂壳体40螺纹联接,这样轴承30的周向内环32不仅恰当地定位,而且通过调节锁定螺母81的紧固力来施加恰当水平的预加载荷。锁定螺母81紧固以后,组装锁定环82,使得锁定环82的突出部82a装配到轮毂壳体40的键槽46中。最后,螺栓83通过锁定环82的通孔82b螺栓连接至锁定螺母81的通孔81b中,完成轴承30的组装。
本发明的示例性的实施方案的特征在于,轮毂部41定位在轮毂壳体40的整体长度A内,内座圈10的中心Z定位在轮毂部41中。
这里,轮毂壳体40的整体长度A表示轮毂壳体在车辆的水平方向上的整体长度。
在轮毂壳体40的整体长度A内,至少布置有轴承滚珠31(包括外滚珠31a和内滚珠31b的两个滚道)、锁定螺母81以及防护罩50。
由于内座圈的中心定位在轮毂壳体的整体长度的右侧以外会使组件的整个尺寸增大,因此,等速万向节的外座圈和车轮轮毂装置分开制造并且通过花键和轮毂螺母联接的传统的结构,在等速万向节组件的装配方面是不利的。
相反,根据本发明的示例性的实施方案,内座圈10的中心Z定位在轮毂壳体40的整体长度A内,使得组件的尺寸在车辆的长度方向上显著地减小,有利于装配组件。
如图5所示,本发明的特征在于,轮毂壳体40的整体长度A与内座圈10的中心长度B之间的关系满足条件“1.25≤A/B≤1.4”。
这里,中心长度B表示从轮毂壳体40的凸缘部43的外侧端部到内座圈10的中心Z的长度。
在轮毂壳体40的整体长度A为定值的情况下,如果A/B<1.25,则内座圈10的中心长度B相对于图5所示的状态增大,即,内座圈10的中心Z在朝向车辆的内部的方向上移动至位置Z1。
如果内座圈10的中心长度B随着内座圈10的中心Z朝向位置Z1的移动而增大,则轮毂部41的辐条厚度T1相对于图5所示的状态减小,轮毂壳体40的强度下降。
如果为了改善轮毂壳体的强度而随意增大轮毂部41的辐条厚度T1,那么轮毂壳体40的外径会增大,同样轴承30的尺寸也增大,这不利于降低组件的重量。
在轮毂壳体40的整体长度A为定值的情况下,如果A/B>1.4,则内座圈10的中心长度B相对于图5所示的状态减小,即,内座圈10的中心Z在朝向车辆的外部的方向上移动至位置Z2。
如果内座圈10的中心长度B随着内座圈10的中心Z朝向位置Z2的移动而减小,则驱动轴1的容许转动角度从Y1减小至Y2,这会对转向性能产生不利影响,从而导致最小转弯半径减小,并且因此使转向性能变差。
因此,在本发明的示例性的实施方案中,满足条件“1.25≤A/B≤1.4”的配置具有以下效果:保证轮毂部41的足够的辐条厚度T1,从而维持轮毂壳体40的强度;维持驱动轴1的足够的转动角度,从而改善转向性能。
另外,如图6所示,本发明的特征在于,轴承滚珠31的节圆直径(PCD)C与万向节滚珠20的节圆直径D之间的关系满足条件“1.7≤C/D≤1.9”。
这里,轴承滚珠31的PCD C表示轴承滚珠31的节圆的直径,外滚珠31a和内滚珠31b的PCD相同。
万向节滚珠20的PCD D表示万向节滚珠20的节圆的直径。
万向节滚珠20的PCD D是为了车辆所需要的强度而根据标准规范所取的定值。
因此,在万向节滚珠20的PCD D为定值的情况下,如果C/D<1.7,则轴承滚珠31的PCD C减小,即,万向节滚珠20与轴承滚珠31之间的距离减小。
如果万向节滚珠20与轴承滚珠31之间的距离随着轴承滚珠31的PCD C的减小而减小,那么,为了保证轴承滚珠31的安装空间,则需要改变设计来减小轴承滚珠31的尺寸以及周向内环32的厚度,从而导致轴承30的强度降低和寿命减少。
另外,在万向节滚珠20的PCD D为定值的情况下,如果C/D>1.9,则轴承滚珠31的PCD C增大,即,万向节滚珠20与轴承滚珠31之间的距离增大。
如果万向节滚珠20与轴承滚珠31之间的距离随着轴承滚珠31的PCD C的增大而增大,那么,虽然充分地保证了轴承滚珠31的安装空间,但是周向外环33的重量和尺寸相应地增大,从而在周向外环33与周边的零件(例如,转向节支架、轮盘或者制动钳)之间产生干涉,使组件的耐久性变差。
因此,根据本发明的示例性的实施方案,满足条件“1.7≤C/D≤1.9”的配置具有以下效果:保证轴承滚珠31的足够的安装空间以及轴承30的足够的强度;通过防止与周边零件的干涉来提供足够的耐久性。
另外,如图7所示,本发明的特征在于,万向节滚珠20的PCD D与驱动轴1的直径E之间的关系满足条件“2.15≤D/E≤2.35”。
万向节滚珠20的PCD D是为了车辆所需要的强度而根据标准规范所取的定值。
因此,在万向节滚珠20的PCD D为定值的情况下,如果D/E<2.15,那么驱动轴1的直径E增大。
如果在万向节滚珠20的PCD D固定的情况下增大驱动轴1的直径E,那么,尽管驱动轴1的强度增大,但仍需要改变设计来减小内座圈10的截面厚度,从而导致等速万向节组件不能满足其容许强度。
另外,在万向节滚珠20的PCD D为定值的情况下,如果D/E>2.35,那么驱动轴1的直径E减小。在这种情况下,驱动轴1自身的强度降低,从而导致等速万向节组件不能满足其容许强度。
因此,根据本发明的示例性的实施方案,满足条件“2.15≤D/E≤2.35”的配置具有满足驱动轴1自身的强度和等速万向节组件的容许强度的效果。
为了方便解释和精确限定所附权利要求,术语“上”、“下”、“内”、“外”、“上面”、“下面”、“上面的”、“下面的”、“向上”、“向下”、“前”、“后”、“背后”、“内侧”、“外侧”、“向内”、“向外”、“内部”、“外部”、“内部的”、“外部的”、“向前”、“向后”被用于参考附图中所显示的这些特征的位置来描述示例性具体实施方案的特征。
前面对本发明具体示例性的实施方案所呈现的描述是出于说明和描述的目的。前面的描述并不旨在成为穷举的,也并不旨在把本发明限制为所公开的精确形式,显然,根据上述教导很多改变和变化都是可能的。选择示例性实施方案并进行描述是为了解释本发明的特定原理及其实际应用,从而使得本领域的其它技术人员能够实现并利用本发明的各种示例性实施方案及其不同选择形式和修改形式。本发明的范围由所附权利要求及其等价形式所限定。

Claims (13)

1.一种与车轮轮毂装置一体的等速万向节组件,该组件包括:
内座圈,其联接至驱动轴的端部;
多个万向节滚珠,其能够转动地安装在所述内座圈中;以及
轮毂壳体,其容纳并且被联接至在其中保持有万向节滚珠的内座圈,其中,所述轮毂壳体包括安装到轮毂壳体的外周向表面的轴承,轮毂壳体设置成用作外座圈和车轮轮毂装置,所述轴承包括内环、外环以及轴承滚珠;
转向节支架固定至所述轴承的外环;
在所述轮毂壳体和所述轴承的内环上分别容纳有用于支撑轴承滚珠的滚道;
所述轴承滚珠安装至所述外环,并且安装在所述轮毂壳体和内环的滚道中;
锁定螺母联接至所述轮毂壳体并且接合至所述内环,以向所述内环施加预加载荷。
2.根据权利要求1所述的与车轮轮毂装置一体的等速万向节组件,进一步包括:
锁定环,其固定地联接至所述轮毂壳体,同时紧靠锁定螺母的侧表面;以及
多个紧固件,其通过锁定环连接至所述锁定螺母。
3.根据权利要求1所述的与车轮轮毂装置一体的等速万向节组件,其中,所述轮毂壳体包括:
环形的轮毂部,所述内座圈的万向节滚珠安装至所述环形的轮毂部,环形的轮毂部支撑所述内环;以及
壳体部,其支撑所述外环。
4.根据权利要求3所述的与车轮轮毂装置一体的等速万向节组件,其中,所述轴承滚珠包括:
外滚珠和内滚珠,所述外滚珠和内滚珠设置在所述壳体部的外周向表面上;
内环,其支撑并且保持所述内滚珠;以及
外环,其能够滑动地支撑所述外滚珠和内滚珠。
5.根据权利要求4所述的与车轮轮毂装置一体的等速万向节组件,其中,所述外滚珠由与所述壳体部一起形成的滚珠支撑件保持。
6.根据权利要求4所述的与车轮轮毂装置一体的等速万向节组件,其中,轮毂盖安装成联接所述环形的轮毂部和内座圈。
7.根据权利要求1所述的与车轮轮毂装置一体的等速万向节组件,其中,所述轮毂壳体在外周向侧设置有螺纹部,围绕所述螺纹部形成有多个键槽。
8.根据权利要求7所述的与车轮轮毂装置一体的等速万向节组件,其中,所述锁定螺母具有在其内周向表面上的螺纹部并且具有多个通孔;所述锁定螺母使用锁定螺母和轮毂壳体的螺纹部围绕轮毂壳体联接,从而通过调节锁定螺母与内环的紧固力,给轴承的内环施加预加载荷。
9.根据权利要求8所述的与车轮轮毂装置一体的等速万向节组件,其中,锁定环包括在其内周向表面上的多个突出部并且包括多个通孔,所述锁定环的突出部装配到形成于所述轮毂壳体的键槽中。
10.根据权利要求9所述的与车轮轮毂装置一体的等速万向节组件,其中,紧固件配置为进入所述锁定螺母的通孔和所述锁定环的通孔中以连接锁定螺母和锁定环。
11.根据权利要求1所述的与车轮轮毂装置一体的等速万向节组件,其中,所述轮毂壳体包括具有沟槽的轮毂部,所述万向节滚珠插入到所述沟槽中,所述轮毂部布置在轮毂壳体的整体长度A内;
至少轴承滚珠的滚道、锁定螺母以及防护罩布置在所述轮毂壳体的整体长度A内;
所述内座圈的中心布置在所述轮毂部中;
轮毂壳体的整体长度A与内座圈的中心长度B之间的关系满足条件“1.25≤A/B≤1.4”。
12.根据权利要求1所述的与车轮轮毂装置一体的等速万向节组件,其中,轴承滚珠的节圆直径C与万向节滚珠的节圆直径D之间的关系满足条件“1.7≤C/D≤1.9”。
13.根据权利要求1所述的与车轮轮毂装置一体的等速万向节组件,其中,万向节滚珠的节圆直径D与驱动轴的直径E之间的关系满足条件“2.15≤D/E≤2.35”。
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