CN103821830A - 等速万向接头 - Google Patents

等速万向接头 Download PDF

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Publication number
CN103821830A
CN103821830A CN201310528653.2A CN201310528653A CN103821830A CN 103821830 A CN103821830 A CN 103821830A CN 201310528653 A CN201310528653 A CN 201310528653A CN 103821830 A CN103821830 A CN 103821830A
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needle bearing
constant velocity
velocity joint
spoke frame
axle journal
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CN103821830B (zh
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金孝锡
金旼奎
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Hyundai Motor Co
Kia Corp
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Hyundai Motor Co
Kia Motors 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
    • F16D3/202Universal 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 one coupling part having radially projecting pins, e.g. tripod joints
    • F16D3/205Universal 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 one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
    • F16D3/2055Universal 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 one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part having three pins, i.e. true tripod joints
    • 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
    • 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
    • F16D3/202Universal 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 one coupling part having radially projecting pins, e.g. tripod joints
    • F16D3/205Universal 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 one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
    • 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
    • F16D3/202Universal 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 one coupling part having radially projecting pins, e.g. tripod joints
    • 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
    • F16D3/202Universal 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 one coupling part having radially projecting pins, e.g. tripod joints
    • F16D2003/2026Universal 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 one coupling part having radially projecting pins, e.g. tripod joints with trunnion rings, i.e. with tripod joints having rollers supported by a ring on the trunnion

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

一种等速万向接头,包括:在壳体的内侧上具有引导槽的等速万向接头壳体;设置在等速万向接头壳体中与一轴结合并且具有辐架轴颈的辐架;以及设置在等速万向接头壳体的引导槽中的球面滚子。在球面滚子与辐架轴颈之间设置滚针轴承,其中在球面滚子中形成多个滚针轴承插孔,并且滚针轴承设置在滚针轴承插孔中。

Description

等速万向接头
相关申请的交叉引用
本申请要求于2012年11月15日向韩国知识产权局提交的韩国专利申请No.10-2012-0129746号的优先权和权益,通过引用将其全部内容结合于此。
技术领域
本公开涉及一种等速万向接头,更特别地涉及一种减少滚针轴承数量并简化制造工艺的等速万向接头。
背景技术
通常,等速万向接头(CVJ,constant velocity joint)是使得驱动轴能够以恒定的速度以及各种角度传送动力的装置。
等速万向接头通常用于前轮驱动汽车或全轮驱动汽车。
图1是示出了一般等速万向接头的视图。
参照图1,一般等速万向接头包括:在内侧上具有引导槽110的等速万向接头壳体100;设置在等速万向接头壳体100内与轴300结合并且具有辐架轴颈202的辐架(spider)200;设置在等速万向接头壳体100的引导槽110中的球面滚子400;以及设置在球面滚子400与辐架202之间的滚针轴承500。
此外,在辐架轴颈202上设置有碰撞件(striker)600和弹性挡圈(circlip)700,以防止滚针轴承500分离。
从发动机(未示出)输出的动力传输至壳体100并且然后通过球面滚子400、辐架200、以及轴300传输至轮(未示出)。
即使轮的状态(phase,相位)根据车辆的行驶状况而改变,球面滚子400也会沿着引导槽110移动,使得轴300与壳体100之间的连接角改变并且使得来自发动机的动力顺畅地传送至轮。
然而,一个滚子套件需要大约三十个滚针轴承,每个等速万向接头需要三个滚子套件,并且前轮驱动汽车通常需要两个等速万向接头,因此需要大约一百八十个滚针轴承。
此外,因为许多部件都要求打磨,所以成本的负担高。在致力于减小部件接触面上的摩擦力时增加打磨,并且球面滚子400的与滚针轴承500接触的内侧以及辐架轴颈202的与滚针轴承接触的外侧需要精确的打磨。
由于存在许多摩擦面的原因(其中摩擦产生于滚针轴承500、球面滚子400、与辐架轴颈202之间的表面上以及滚针轴承500之间),使得噪音、振动、以及粗糙(NVH)特性差。
在背景技术部分中披露的以上信息仅用于加强对本公开的背景的理解,并且因此背景技术部分可能包含并不构成已为该国本领域的普通技术人员所知的现有技术的信息。
发明内容
本公开已致力于提供一种具有减少部件数量、缩短打磨过程、以及减少摩擦面的优点的等速万向接头。
等速万向接头包括:在其内侧上具有引导槽的等速万向接头壳体;设置在等速万向接头壳体中与一轴结合并且具有辐架轴颈的辐架;设置在等速万向接头壳体的引导槽中的球面滚子;以及设置在球面滚子与辐架轴颈之间的滚针轴承,其中在球面滚子中形成多个滚针轴承插孔,并且滚针轴承分别设置在所述滚针轴承插孔中。
在本公开的一个或多个示例性实施例中,等速万向接头可进一步包括设置在辐架轴颈上用以防止滚针轴承分离的碰撞件和弹性挡圈。
在本公开的示例性实施例中,在辐架上形成有防止滚针轴承分离的台阶形部分。
在本公开的示例性实施例中,球面滚子的内径大于滚针轴承的中心围绕辐架轴颈的旋转半径。
在本公开的示例性实施例中,滚针轴承嵌入孔形成在球面滚子的内侧上的曲面中,使得与滚针轴承的接触点远离辐架轴颈的中心。
在本公开的示例性实施例中,滚针轴承形成为中空管的形状。
在本公开的示例性实施例中,穿过滚针轴承的内侧和外侧形成有一个或多个通孔。
在本公开的另一个示例性实施例中,等速万向接头包括:在其内侧上具有引导槽的等速万向接头壳体;设置在等速万向接头壳体内与一轴结合并且具有辐架轴颈的辐架;设置在等速万向接头壳体的引导槽中的球面滚子;以及设置在球面滚子与辐架轴颈之间的滚针轴承,其中在球面滚子中形成有多个滚针轴承插孔,并且滚针轴承相应地设置在所述滚针轴承插孔中。
在本公开的示例性实施例中,等速万向接头进一步包括设置在辐架轴颈上用以防止滚针轴承分离的碰撞件和弹性挡圈。
在本公开的示例性实施例中,在辐架上形成有防止滚针轴承分离的台阶形部分。
滚针轴承的中心围绕辐架轴颈的旋转半径可大于辐架轴颈的外半径。
滚针轴承插孔可形成在辐架轴颈的外侧上的曲面中,使得与滚针轴承的接触点远离辐架轴颈的中心。
在本公开的示例性实施例中,滚针轴承形成为中空管的形状。
在本公开的示例性实施例中,穿过滚针轴承的内侧和外侧形成有一个或多个通孔。
根据本公开的示例性实施例的等速万向接头,可减少部件的数量并且缩短打磨过程,从而可降低制造成本。
此外,根据本公开的示例性实施例的等速万向接头,可减少摩擦表面,从而改善NVH特性。
附图说明
图1是示出了一般等速万向接头的视图。
图2是示出了根据本公开示例性实施例的等速万向接头的构造的一部分的视图。
图3和图4是示出了根据本公开示例性实施例的等速万向接头的滚针轴承和滚针轴承插孔的视图。
图5是示出了根据本公开示例性实施例的等速万向接头构造的一部分的部分断面图。
图6是示出了根据本公开示例性实施例的等速万向接头构造的一部分的部分横截面图。
图7是示出了根据本公开示例性实施例的等速万向接头构造的一部分的部分断面图。
具体实施方式
在下面的详细描述中,仅简单地以示意的方式示出和描述了本公开的某些示例性实施例。
如本领域技术人员应当认识到的,可以各种不同的方式对所描述的实施例进行修改,所有这些修改都不偏离本公开的精神或范围。
贯穿本说明书,相同的部件给定相同的参考标号。
在附图中,为了清楚起见而放大了层、膜、板、区域等的厚度。
其中诸如层、膜、区域、板等的各个部件被描述为“在”另一部件“上”的情况旨在不仅包括其中各个部件“直接地在…上”的情况,而且还包括其中其他部件介于各个部件与另一部件之间的情况。
相反,当元件被称为“直接地在”另一元件“上”时,则不存在介于其间的元件。
贯穿本说明书,除非明确地描述为与之相反,否则,词语“包括(comprise)”以及诸如“包括(comprises)”或者“包括(comprising)”等变型应当理解为意指包括所述元件,而非排除任何其他的元件。
在下文中将参照附图对本公开示例性实施例进行详细描述。
图1是示出了一般等速万向接头的视图,并且图2是示出了根据本公开示例性实施例的等速万向接头的构造的一部分的视图。
首先参照一般等速万向接头的构造来描述与根据示例性实施例的等速万向接头相似或者相同的构造。
在描述根据本公开示例性实施例的等速万向接头时,为了更好理解并易于描述,对与一般等速万向接头相同的部件给定相同的参考标号。
根据本公开示例性实施例的等速万向接头包括:在内侧上具有引导槽110的等速万向接头壳体100;设置在等速万向接头壳体100内与轴300结合并且具有辐架轴颈230的辐架230;设置在等速万向接头壳体100的引导槽110中的球面滚子430;以及设置在球面滚子400与辐架轴颈232之间的滚针轴承530。
在球面滚子430中形成多个滚针轴承插孔432,并且滚针轴承530设置在滚针轴承插孔432中。
等速万向接头进一步包括辐架轴颈232中的防止滚针轴承分离的碰撞件600和弹性挡圈700。
图3和图4是示出了等速万向接头的滚针轴承和滚针轴承插孔的视图。
参照图3,在本公开示例性实施例中,球面滚子430的内径R1大于滚针轴承中心A围绕辐架轴颈232的旋转半径R2。
在滚针轴承530旋转时,相关接触点应当处于滚针轴承中心A之外,以引发滚针轴承530的滚动接触。因此,球面滚子430的内半径R1设定为大于滚针轴承中心A围绕辐架轴颈232的旋转半径R2。
参照图4,滚针轴承插孔432可形成在球面滚子的内侧上的曲面434中,使得与滚针轴承的接触点远离辐架轴颈的中心A。
图5是示出了等速万向接头构造的一部分的部分断面图。
参照图5,在等速万向接头中,在辐架260的辐架轴颈262中形成有多个滚针轴承孔265,并且滚针轴承560设置在滚针轴承插孔265中,从而可减小与球面滚子460的摩擦。
也即,滚针轴承插孔265可形成在辐架轴颈262中。
参照图5,等速万向接头还可具有与在图3和图4中示出的构造类似的用于引发滚动接触的构造。
在等速万向接头中,滚针轴承560的旋转半径设定为大于辐架轴颈262的外半径。
此外,与在图4中示出的类似,滚针轴承插孔265可形成在辐架轴颈262的外侧上的曲面中,使得与滚针轴承560的接触点与辐架轴颈262间隔开。
在图5中示出的等速万向接头中的滚针轴承560的旋转半径、辐架轴颈262外侧的作用、以及曲面的形成与在图3和图4示出的类似/相同,并且不再提供重复的描述。
防止滚针轴承560分离的台阶形部分270可形成在辐架260上。
图6是示出了等速万向接头构造的一部分的部分横截面图。
参照图6,滚针轴承570可形成为中空管的形状。
当滚针轴承形成为中空管的形状时,部件之间的摩擦可通过将润滑油(润滑脂)注入滚针轴承来减小,并且滚针轴承570的摩擦热易于消散。
图7是示出了等速万向接头构造的一部分的部分断面图。
参照图7,滚针轴承580为中空管,并且可穿过滚针轴承580的内侧和外侧形成一个或多个通孔585。
当滚针轴承580形成为中空管的形状并且形成通孔585时,由于通过通孔585增大了与润滑油的接触面积以及增大了摩擦热的消散,因而可通过将润滑油(润滑脂)注入滚针轴承来减小构件之间的摩擦。
当形成滚针轴承插孔265和432并且滚针轴承530、560、570、及580插入到滚针轴承插孔265和432中时,可去除打磨辐架轴颈232和辐架轴颈262以及打磨球面滚子430和球面滚子460中的至少任一过程,从而简化整个工艺。
此外,可使所使用的滚针轴承530、560、570及580的数量减少为少于在一般等速万向接头中使用的滚针轴承的数量,从而可减少部件的数量,并且可更加简化该工艺。
此外,使用中空滚针轴承570和580允许减小构件之间的摩擦并且易于消散滚针轴承570和580的摩擦热。
尽管已结合目前被视为实用的示例性实施例描述了本实施例,但应当理解的是,本发明不限于所公开的实施例。相反,本发明旨在涵盖包含在所附权利要求的精神和范围内的各种修改和等同布置。

Claims (14)

1.一种等速万向接头,包括:
等速万向接头壳体,在其内侧上具有引导槽;
辐架,设置在所述等速万向接头壳体中、与一轴结合并且具有辐架轴颈;
球面滚子,设置在所述等速万向接头壳体的所述引导槽中;以及
滚针轴承,设置在所述球面滚子与所述辐架轴颈之间;
其中,在所述球面滚子中形成有多个滚针轴承插孔,并且所述滚针轴承设置在所述滚针轴承插孔中。
2.根据权利要求1所述的等速万向接头,进一步包括设置在所述辐架轴颈上用以防止所述滚针轴承分离的碰撞件和弹性挡圈。
3.根据权利要求1所述的等速万向接头,其中,在所述辐架上形成有防止所述滚针轴承分离的台阶形部分。
4.根据权利要求1所述的等速万向接头,其中,所述球面滚子的内径大于所述滚针轴承的中心围绕所述辐架轴颈的旋转半径。
5.根据权利要求1所述的等速万向接头,其中,所述滚针轴承插孔形成在所述球面滚子的内侧上的曲面中,使得与所述滚针轴承的接触点和所述辐架轴颈的中心间隔开。
6.根据权利要求1所述的等速万向接头,其中,所述滚针轴承形成为中空管的形状。
7.根据权利要求6所述的等速万向接头,其中,穿过所述滚针轴承的内侧和外侧形成有一个或多个通孔。
8.一种等速万向接头,包括:
等速万向接头壳体,在其内侧上具有引导槽;
辐架,设置在所述等速万向接头壳体中、与一轴结合并且具有辐架轴颈;
球面滚子,设置在所述等速万向接头壳体的所述引导槽中;以及
滚针轴承,设置在所述球面滚子与所述辐架轴颈之间;
其中,在所述辐架滚子中形成有多个滚针轴承插孔,并且所述滚针轴承设置在所述滚针轴承插孔中。
9.根据权利要求8所述的等速万向接头,进一步包括设置在所述辐架轴颈上用以防止所述滚针轴承分离的碰撞件和弹性挡圈。
10.根据权利要求8所述的等速万向接头,其中,在所述辐架上形成有防止所述滚针轴承分离的台阶形部分。
11.根据权利要求8所述的等速万向接头,其中,所述滚针轴承的中心围绕所述辐架轴颈的旋转半径大于所述辐架轴颈的外半径。
12.根据权利要求8所述的等速万向接头,其中,所述滚针轴承插孔形成在所述辐架轴颈的外侧上的曲面中,使得与所述滚针轴承的接触点和所述辐架轴颈的中心间隔开。
13.根据权利要求8所述的等速万向接头,其中,所述滚针轴承形成为中空管的形状。
14.根据权利要求13所述的等速万向接头,其中,穿过所述滚针轴承的内侧和外侧形成有一个或多个通孔。
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US20140135133A1 (en) 2014-05-15

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