CN113738779A - 用于车辆的等速万向节 - Google Patents

用于车辆的等速万向节 Download PDF

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CN113738779A
CN113738779A CN202110571835.2A CN202110571835A CN113738779A CN 113738779 A CN113738779 A CN 113738779A CN 202110571835 A CN202110571835 A CN 202110571835A CN 113738779 A CN113738779 A CN 113738779A
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constant velocity
velocity joint
knuckle
boot
bearing assembly
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CN113738779B (zh
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金东佑
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Hyundai Wia 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0015—Hubs for driven wheels
    • B60B27/0036—Hubs for driven wheels comprising homokinetic joints
    • 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
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal 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
    • F16D3/22—Universal 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
    • F16D3/223—Universal 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0015—Hubs for driven wheels
    • B60B27/0036—Hubs for driven wheels comprising homokinetic joints
    • B60B27/0042—Hubs for driven wheels comprising homokinetic joints characterised by the fixation of the homokinetic joint to the hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0073—Hubs characterised by sealing means
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/80—Labyrinth sealings
    • F16C33/805—Labyrinth sealings in addition to other sealings, e.g. dirt guards to protect sealings with sealing lips
    • 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
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal 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
    • F16D3/22—Universal 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
    • F16D3/221—Universal 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 located in sockets in one of the coupling parts
    • 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
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
    • F16D3/30—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected in which the coupling is specially adapted to constant velocity-ratio
    • 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
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
    • F16D3/845—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/30—Manufacturing methods joining
    • B60B2310/306—Manufacturing methods joining by clamping or wedging, e.g. by clamping inserts as joining means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/50—Improvement of
    • B60B2900/511—Sealing
    • B60B2900/5112—Sealing against dust or dirt
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings 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
    • F16C19/18—Bearings 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 two or more rows of balls
    • F16C19/181—Bearings 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 two or more rows of balls with angular contact
    • F16C19/183—Bearings 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 two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings 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 two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • F16C19/185—Bearings 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 two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with two raceways provided integrally on a part other than a race ring, e.g. a shaft or housing
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
    • F16C33/7879—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring
    • F16C33/7883—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring mounted to the inner race and of generally L-shape, the two sealing rings defining a sealing with box-shaped cross-section
    • 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
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal 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
    • F16D3/22—Universal 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
    • F16D3/223—Universal 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
    • F16D2003/22326—Attachments to the outer joint member, i.e. attachments to the exterior of the outer joint member or to the shaft of the outer joint member
    • 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
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/12—Mounting or assembling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S464/00—Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts
    • Y10S464/904—Homokinetic coupling
    • Y10S464/906—Torque transmitted via radially spaced balls

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

Abstract

本发明提供一种用于车辆的等速万向节，其可以包括：轮毂壳体、轴承组件以及防护罩，轮毂壳体与在轮毂壳体中的等速万向节结合，轴承组件包括内圈、外圈以及动力传递构件，内圈安装在轮毂壳体的外表面上，外圈与内圈隔开预定距离并安装在转向节上，动力传递构件设置在内圈和外圈之间，防护罩具有卡箍座，卡箍座位于轴承组件的内圈上，防护罩具有固定卡箍，固定卡箍固定在防护罩的顶部，并且防护罩通过固定卡箍联接至内圈，其中，防护罩包括防护唇缘，防护唇缘形成在卡箍座的一个端部或两个端部并朝向转向节突出。

Description

用于车辆的等速万向节
技术领域
本发明涉及一种用于车辆的等速万向节，更具体地，涉及一种具有可以防止异物从外部进入等速万向节的结构的汽车用等速万向节。
背景技术
通常，轮毂和轴承安装在与驱动轴连接的轮胎上，用于支撑车辆上下方向和前后方向的载荷以及车辆转弯引起的水平载荷。等速万向节安装在车辆的驱动轴上，用于将动力从变速器传递至车轮。等速万向节、轮毂和轴承通常通过紧固件分开组装以用作单个单元。
根据现有技术的常规等速万向节的结构，轴承组件联接至转向节，并且轴承组件和等速万向节结合。等速万向节的外圈与转向节之间的距离被最小化，以防止异物从外部进入组装好的等速万向节。如果异物从外部进入等速万向节，则异物可能会通过轴承密封件进入轴承组件，这可能会导致异常噪音或轴承晃动，因此可能损坏轴承。为了解决该问题，轴承密封件的唇缘被最大程度地重叠以密封轴承组件，但是存在轴承阻力转矩增加的问题。
因此，期望开发一种能够有效地阻止异物从外部进入轴承组件并且能够减小轴承阻力转矩的技术。
上述作为本申请的相关技术的说明仅用于帮助理解本发明的背景技术，不应被理解为包括在本领域技术人员已知的相关技术中。
发明内容
本发明的目的是提供一种用于车辆的等速万向节，其能够有效地阻止异物进入等速万向节并且能够减小轴承阻力转矩。
为实现本发明的目的，根据本发明的用于车辆的等速万向节包括：轮毂壳体、轴承组件以及防护罩，轮毂壳体与在轮毂壳体中的等速万向节结合；轴承组件包括内圈、外圈以及动力传递构件，内圈安装在轮毂壳体的外表面上，外圈与内圈隔开预定距离并安装在转向节上，动力传递构件设置在内圈和外圈之间；防护罩具有卡箍座，卡箍座位于轴承组件的内圈上，防护罩具有固定卡箍，固定卡箍固定在防护罩的顶部，并且防护罩通过固定卡箍联接至内圈，其中，防护罩包括防护唇缘，防护唇缘形成在卡箍座的一个端部或两个端部并朝向转向节突出。
防护唇缘可以从卡箍座的面向车辆的外部或内部的端部朝向转向节突出，从而防止进入防护罩和转向节之间的异物进入轴承组件。
防护唇缘可以从卡箍座的面向车辆的外部和内部的两个端部朝向转向节突出，从而双重地防止进入防护罩和转向节之间的异物进入轴承组件。
防护唇缘的长度可以为3mm至10mm。
防护罩与转向节之间的距离可以为0.5mm至1mm。
可以通过将轮毂壳体的端部朝向内圈弯曲而在轮毂壳体上形成挤压内圈的发泡部。
防护罩还可以具有防护罩座部，防护罩座部位于轮毂壳体的发泡部上，并且防护罩座部的厚度为5mm或更大。
可以在内圈和外圈的两侧之间设置有轴承密封件。
根据本发明，由于防护唇缘从卡箍座的面向车辆的外部或内部的一个或更多个端部朝向转向节突出，所以可以防止进入防护罩和转向节之间的异物进入轴承组件。此外，由于进入防护罩和转向节之间的异物的运动路径像迷宫一样弯曲，所以即使异物从外部进入，也可以减少进入轴承组件的异物。
此外，根据该结构，由于防止进入防护罩和转向节之间的异物进入轴承组件，所以即使减少轴承密封件的重叠量，也可以保持密封轴承组件的能力。
此外，当减少轴承密封件的重叠量时，可以减小轴承组件的阻力转矩，从而可以提高车辆的整体燃料效率。
附图说明
通过下文结合附图所呈现的详细描述将会更为清楚地理解本发明的以上和其它目的、特征以及其他优点，在这些附图中：
图1是示出根据本发明的实施方案的用于车辆的等速万向节的示意图；
图2是图1的A部分的放大图；
图3是示出根据本发明的另一实施方案的用于车辆的等速万向节的示意图；
图4是示出根据本发明的另一实施方案的用于车辆的等速万向节的示意图；
图5是示出根据本发明的另一实施方案的用于车辆的等速万向节的示意图；以及
图6是示出根据本发明的另一实施方案的用于车辆的等速万向节的示意图。
具体实施方式
应当理解，此处所使用的术语“车辆”或“车辆的”或其它类似术语一般包括机动车辆，例如包括运动型多用途车辆(SUV)、大客车、卡车、各种商用车辆的乘用汽车，包括各种舟艇、船舶的船只，航空器等等，并且包括混合动力车辆、电动车辆、可插式混合动力电动车辆、氢动力车辆以及其它替代性燃料车辆(例如源于非石油的能源的燃料)。正如此处所提到的，混合动力车辆是具有两种或更多动力源的车辆，例如汽油动力和电力动力两者的车辆。
本文所用的术语仅为了描述特定实施例的目的，并不旨在限制本申请。正如本文所使用的，单数形式“一”、“一个”和“所述”旨在也包括复数形式，除非上下文另有清楚的说明。还将理解当在本说明书中使用术语“包含”和/或“包括”时，指明存在所述特征、整体、步骤、操作、元件和/或组件，但是不排除存在或加入一种或多种其他的特征、整体、步骤、操作、元件、组件和/或其群体。正如本文所述的，术语“和/或”包括一种或多种相关列举项目的任何和所有组合。在整个说明书中，除非明确地相反描述，术语“包括”和变化形式例如“包含”或“包括有”应被理解为暗示包含所述元件但是不排除任何其它元件。此外，在说明书中描述的术语“单元”，“器件”，“部件”和“模块”意为用于执行至少一个功能和操作的单元，并且可以由硬件组件或者软件组件以及它们的组合来实现。
此外，本申请的控制逻辑可以实施为计算机可读介质上的非瞬态计算机可读介质，其包含由处理器、控制器等执行的可执行程序指令。计算机可读介质的示例包括但不限于ROM、RAM、光碟(CD)-ROM、磁带、软盘、闪盘驱动器、智能卡和光学数据存储设备。计算机可读介质还可以分布在网络连接的计算机系统上，使得计算机可读介质例如通过远程信息处理服务器或控制器区域网络(Controller Area Network，CAN)以分布方式存储和执行。
下面参照附图详细描述根据本发明的示例性实施方案的用于车辆的等速万向节。
图1是示出根据本发明的实施方案的用于车辆的等速万向节的示意图，图2是图1的A部分的放大图。
参考图1和图2，根据本发明的实施方案的用于车辆的等速万向节可以包括轮毂壳体100、轴承组件200和防护罩300。
轮毂壳体100通过将轮毂和等速万向节500的外圈整合而构成，并且等速万向节500联接在轮毂壳体100中，从而能够将驱动扭矩从发动机传递至车轮。
由于轮毂壳体100是通过将轮毂和等速万向节500的外圈整合而构成的，所以等速万向节500的中心移动至车辆的外部，因此可以增加驱动轴的长度，相应地可以改进等速万向节500的驱动轴的铰接角度。
此外，由于轮毂壳体100是通过将轮毂和等速万向节500的外圈整合而构成的，因此通过去除现有技术中的轮毂与等速万向节500之间的联接器，可以减轻重量并降低制造成本。此外，随着重量的减轻，可以提高燃油效率，并减少或消除诸如联接器产生的噪音以及由于固定等速万向节壳体和轮毂的轮毂螺母的松动而导致的劣质之类的问题。
可以通过将轮毂壳体100的端部朝向内圈210弯曲而在轮毂壳体100上形成对安装在轮毂壳体100的外表面上的内圈210进行挤压的发泡部(foaming portion)110。发泡部110可以通过轨道发泡形成。可以通过形成在轮毂壳体100上的发泡部将预载荷施加至轴承组件200的内圈210。预载荷可以是由于在组装轴承组件200的一些部件时轴向施加的预定力而引起的弹性压缩变形的大小。
轴承组件200可以包括：内圈210、外圈220以及动力传递构件230，内圈210安装在轮毂壳体100的外表面上，外圈220与内圈210隔开预定距离并安装在转向节400上，动力传递构件230设置在内圈210和外圈220之间。
特别地，内圈210可以被强制地安装在轮毂壳体100的外表面上并且可以与轮毂壳体100一起旋转。内圈210还可以用作轴承组件200的内轨道。
外圈220可以设置成与轴承组件200的内圈210相距预定距离，并且用作轴承组件200的外轨道。外圈220联接至转向节400，因此外圈220可以是位置不变的非旋转元件。
动力传递构件230可以设置在内圈210和外圈220之间。根据特定实施方案，动力传递构件230可以是滚珠或辊子，并且可以在外圈220和内圈210的轨道部分上旋转。
防护罩300可以防止润滑油从等速万向节500泄漏，并且可以防止异物进入等速万向节500。
特别地，防护罩300可以具有卡箍座310和防护唇缘320，并且可以进一步具有防护罩座部330。
此外，卡箍座310位于轴承组件200的内圈210的顶部，固定卡箍600设置在卡箍座310上。防护罩300可以通过固定卡箍600联接至轴承组件200的内圈210。
如上所述，在根据本发明的实施方案的用于车辆的等速万向节500中，由于防护罩300设置在轴承组件200的内圈210上并且通过固定卡箍600联接至内圈210，所以等速万向节500可以与应用了轨道发泡的轮毂壳体100一起制成紧凑型。
参考图2至图6，防护唇缘320可以形成在卡箍座310的一个端部或两个端部，并且可以朝向转向节400突出。
详细地，如图2、图3和图5所示，防护唇缘320可以从卡箍座310的面向车辆的外部或内部的一个端部朝向转向节400突出。
如图4和图6所示，防护唇缘320从卡箍座310的面向车辆的外部或内部的两个端部朝向转向节400突出，因此可以双重地防止进入防护罩300和转向节400之间的异物进入轴承组件200。
由于防护唇缘320从卡箍座310的面向车辆的外部或内部的一个或更多个端部朝向转向节400突出，所以可以防止进入防护罩300和转向节400之间的异物进入轴承组件200。
此外，由于防护唇缘320从卡箍座310的面向车辆的外部或内部的一个或更多个端部朝向转向节400突出，因此进入防护罩300和转向节400之间的异物的运动路径像迷宫一样弯曲，从而可以减少进入内部之后进入轴承组件200的外部异物。
可以考虑防护罩300和固定卡箍600的厚度来确定防护唇缘320的长度。根据特定实施方案，防护唇缘320的长度可以是3mm至10mm。
根据特定实施方案，如图5所示，防护唇缘320可以在卡箍座310的面向车辆外部的端部朝向转向节400突出。在这种情况下，防护唇缘320向上突出至轴承密封件240的上端，从而能够更有效地防止异物进入轴承座240。在这种情况下，防护唇缘320的长度可以是3mm至10mm。
根据特定实施方案，如图6所示，防护唇缘320可以从卡箍座310的面向车辆的内部和外部的端部朝向转向节400突出。在这种情况下，防护唇缘320在面向车辆的内部的端部的长度和防护唇缘320在面向车辆的外部的端部的长度可以不同。特别地，根据特定实施方案，防护唇缘320在面向车辆的内部的端部的长度可以是3mm至5mm。此外，根据特定实施方案，防护唇缘320在面向车辆的外部的端部的长度可以具有3mm至10mm以突出至轴承密封件240的上端。
如上所述，由于防护唇缘320从卡箍座310的面向车辆的外部或内部的端部朝向转向节400突出，并且防护唇缘在面向车辆的外部的端部突出至轴承密封件240的上端，因此可以更有效地防止已经进入防护罩300和转向节400之间的异物进入轴承组件200。
防护罩300和转向节400之间的距离可以是0.5mm至1.0mm。特别地，防护罩300的上端与转向节400之间的距离可以是0.5mm至1.0mm。此外，轴承组件200和转向节400之间的距离可以是0.5mm至1.0mm。
如上所述，在根据本发明的实施方案的用于车辆的等速万向节500中，防护唇缘320的长度为3mm至10mm，防护罩300和转向节400之间的距离为0.5mm至1mm，并且轴承组件200与转向节400之间的距离为0.5mm至1mm，从而使防护罩300与转向节400之间的间隙以及轴承组件200与转向节400之间的间隙最小。因此，即使异物从外部进入防护罩300和转向节400之间，也可以使实际进入轴承组件200的异物量最小化。
同时，防护罩300还可以具有防护罩座部330，防护罩座部330位于轮毂壳体100的发泡部110上。防护罩座部330形成有预定或更大的厚度，并且根据特定实施方案，其可以具有5mm或更大的厚度。
通常，如果防护唇缘320移动，则存在转向节400被摩擦并且引起轴承组件200的异常噪音的问题。为了解决该问题，需要增加防护唇缘320的刚度，为此，防护唇缘320可以具有预定或更大的厚度。
如果防护罩座部330的厚度小于5mm，则当防护罩300铰接时，由于防护唇缘320的运动而产生对转向节400的干扰。因此，防护罩座部330的厚度可以是5mm或更大。
同时，如图1至图6所示，根据本发明的实施方案，轴承密封件240可以设置在用于车辆的等速万向节500的内圈210和外圈220的两侧之间。
根据本发明的实施方案的用于车辆的等速万向节，如上所述具有可以防止进入防护罩300和转向节400之间的异物进入轴承组件200的结构，其具有以下效果。
此外，由于防护唇缘320从卡箍座310的面向车辆的外部或内部的一个或更多个端部朝向转向节400突出，因此可以防止进入防护罩300和转向节400之间的异物进入轴承组件200。此外，由于进入防护罩300和转向节400之间的异物的运动路径像迷宫一样弯曲，所以即使异物从外部进入，也可以减少进入轴承组件200的异物。
此外，根据该结构，由于可以防止进入防护罩300和转向节400之间的异物进入轴承组件200，所以即使减少轴承密封件的重叠量，也可以保持密封轴承组件200的能力。
此外，当减少轴承密封件240的重叠量时，可以减小轴承组件200的阻力转矩，从而可以提高车辆的整体燃料效率。

Claims (9)

1.一种用于车辆的等速万向节，所述等速万向节包括：
轮毂壳体，其与在轮毂壳体中的等速万向节结合；
轴承组件，其包括内圈、外圈以及动力传递构件，所述内圈安装在轮毂壳体的外表面上，所述外圈与内圈隔开预定距离并安装在转向节上，所述动力传递构件设置在内圈和外圈之间；以及
防护罩，其具有卡箍座，所述卡箍座位于所述轴承组件的内圈上，所述防护罩具有固定卡箍，所述固定卡箍固定在防护罩的顶部，并且防护罩通过固定卡箍联接至内圈，其中，防护罩包括防护唇缘，所述防护唇缘形成在卡箍座的一个端部或两个端部并朝向转向节突出。
2.根据权利要求1所述的用于车辆的等速万向节，其中，所述防护唇缘从卡箍座的面向车辆的外部或内部的一个端部朝向所述转向节突出，从而防止进入所述防护罩和转向节之间的异物进入所述轴承组件。
3.根据权利要求1所述的用于车辆的等速万向节，其中，所述防护唇缘从卡箍座的面向车辆的外部和内部的两个端部朝向所述转向节突出，从而双重地防止进入所述防护罩和转向节之间的异物进入所述轴承组件。
4.根据权利要求1所述的用于车辆的等速万向节，其中，所述防护唇缘的长度为3mm至10mm。
5.根据权利要求1所述的用于车辆的等速万向节，其中，所述防护罩与所述转向节之间的距离为0.5mm至1mm。
6.根据权利要求1所述的用于车辆的等速万向节，其中，所述轴承组件和所述转向节之间的距离为0.5mm至1mm。
7.根据权利要求1所述的用于车辆的等速万向节，其中，通过将所述轮毂壳体的端部朝向所述内圈弯曲而在轮毂壳体上形成挤压内圈的发泡部。
8.根据权利要求7所述的用于车辆的等速万向节，其中，所述防护罩还具有防护罩座部，所述防护罩座部位于轮毂壳体的发泡部上，并且防护罩座部的厚度为5mm或更大。
9.根据权利要求1所述的用于车辆的等速万向节，其中，在所述内圈和所述外圈的两侧之间设置有轴承密封件。
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