CN202707792U - 具有四唇密封结构的轮毂轴承单元 - Google Patents

具有四唇密封结构的轮毂轴承单元 Download PDF

Info

Publication number
CN202707792U
CN202707792U CN 201220370306 CN201220370306U CN202707792U CN 202707792 U CN202707792 U CN 202707792U CN 201220370306 CN201220370306 CN 201220370306 CN 201220370306 U CN201220370306 U CN 201220370306U CN 202707792 U CN202707792 U CN 202707792U
Authority
CN
China
Prior art keywords
lip
hub
outward flange
flange dish
dust cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220370306
Other languages
English (en)
Inventor
梅松
唐威
张欣欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
The new torch Science and Technology Ltd. in Hubei
Original Assignee
Hubei New Torch Science & Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hubei New Torch Science & Technology Co Ltd filed Critical Hubei New Torch Science & Technology Co Ltd
Priority to CN 201220370306 priority Critical patent/CN202707792U/zh
Application granted granted Critical
Publication of CN202707792U publication Critical patent/CN202707792U/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
    • F16C33/783—Details of the sealing or parts thereof, e.g. geometry, material of the mounting region
    • 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
    • F16C19/186—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 three raceways provided integrally on parts other than race rings, e.g. third generation hubs
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors

Landscapes

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

Abstract

本实用新型公开了具有四唇密封结构的轮毂轴承单元，其包括内圈、磁性防尘盖、橡胶密封圈、钢球、保持架、外法兰盘、内法兰盘及滚花螺栓，橡胶密封圈外圆上设有四个唇口，其中，唇口a、唇口b和唇口c与磁性防尘盖接触密封，唇口a和唇口b在磁性防尘盖直径方向，唇口c在磁性防尘盖端面方向；密封圈与防尘盖之间形成三个内腔；唇口d与外法兰盘端面配合密封，使橡胶密封圈与轴承外法兰盘内壁紧密接触，起到防尘密封效果。本实用新型对轴承滚道端口密封，阻止润滑油外泄，阻止水分和灰尘进入，避免对轴承的磨损，起到良好密封效果。

Description

具有四唇密封结构的轮毂轴承单元
技术领域
一种轿车轮毂轴承单元，具体地说是一种具有四唇密封结构的车轮毂轴承单元。
技术背景
装在轿车制动器上的轮毂轴承单元，是一个相对独立的部件，由于制动器直接与灰尘、泥浆、水接触，工作环境恶劣，因此结构设计至关重要，要求有良好的密封性。从目前轴承的使用和试验情况看，很大一部分轴承损坏都是由密封失效引起的，密封失效的主要原因是来自轴承外部杂质污染和泥水的侵入造成界面腐蚀，从而造成密封失效加速了轴承磨损报废，严重的造成轿车制动器报废。
发明内容
本实用新型的目的是针对上述装在轿车制动器上轴承密封性能不好，轴承外部杂质污染侵入轴承内造成界面腐蚀，密封失效使轴承磨损报废问题，提供一种具有四唇密封结构的轮毂轴承单元，该轴承不仅密封防尘效果好，而且使用寿命长。
本实用新型的技术方案是这样实现的：一种四唇密封结构的轮毂轴承单元，它包括内圈、磁性防尘盖、橡胶密封圈、钢球、保持器、外法兰盘、内法兰盘及滚花螺栓，其特征在于：在轮毂单元的外法兰盘内圆上设有两列滚道，与轮毂单元外法兰盘内圆上设的两列滚道相对应的内圈和内法兰盘的外圆上也分别设有滚道；把钢球装在保持架上，依次将两只保持架分别安装在轮毂单元外法兰盘内圆与内圈和内法兰盘外圆之间的滚道内，把上密封圈和磁性防尘盖配合安装在外法兰盘内圆与内圈外圆的一端之间；下密封圈安装在内法兰盘外圆与外法兰盘一端的之间，再将螺栓装入内法兰盘的内孔。
上密封圈的主要特征在于：橡胶密封圈外圆上设有四个唇口，其中唇口a、唇口b和唇口c与磁性防尘盖接触密封，唇口a和唇口b在磁性防尘盖直径方向，唇口c在磁性防尘盖端面方向。密封圈与防尘盖之间形成三个内腔。唇口d与外法兰盘端面配合密封，使橡胶密封圈与轴承外法兰盘内壁紧密接触，起到防尘密封效果。
本实用新型的有益效果是，一种四唇密封结构的轮毂轴承单元，上密封圈唇口d与外法兰盘端面配合密封，使橡胶密封圈与轴承外法兰盘内壁紧密接触，起到防尘效果；上密封圈唇口a、唇口b和唇口c与磁性防尘盖紧密接触进行密封，橡胶密封圈唇边a和唇边b能承受较大的压力，对轴承滚道端口密封，阻止润滑油外泄，阻止水分和灰尘进入，避免对轴承的磨损，起到良好密封效果。
附图说明
下面结合附图和实施例对本实用新型作进一步的描述：
图1是本实用新型的结构示意图。
图2是上密封圈的结构示意图。
在图1中：1、内圈，2、磁性防尘盖，3、上密封圈，4、保持器，5、外法兰盘，6、钢球，7、下密封圈，8、内法兰盘，9、滚花螺栓。
在图2中：唇口a，唇口b，唇口c，唇口d。
具体实施方式
在图1的实施例中，具有四唇密封结构的轮毂轴承单元，在轮毂单元的外法兰盘5内圆上设有两列滚道，与轮毂单元外法兰盘内圆上设的两列滚道相对应的内圈1和内法兰盘8的外圆上也分别设有滚道；把钢球6装在保持架4上，依次将两只保持架分别安装在轮毂单元外法兰盘5内圆与内圈1和内法兰盘8外圆之间的滚道内，把上密封圈3和磁性防尘盖2配合安装在外法兰盘5内圆与内圈1外圆的一端之间；下密封圈7安装在内法兰盘8外圆与外法兰盘5一端的之间，再将滚花螺栓9装入内法兰盘8的内孔。
在图2的实施例中，将橡胶密封圈压入轮毂单元内部，上密封圈的唇口d与外法兰盘端面配合密封，使上密封圈与轴承外法兰盘内壁紧密接触，起到防尘效果；上密封圈的唇口a、唇口b和唇口c与磁性防尘盖紧密接触进行密封，唇口a和唇口b在磁性防尘盖直径方向，唇口c在磁性防尘盖端面方向。密封圈与防尘盖之间形成三个内腔。当轮毂轴承总成工作时，由于滚动体和内滚道之间摩擦发热，轴承内腔温度升高，腔内空气压强增大，形成正压，油脂有外泄的趋势，唇口a与防尘盖之间由于过盈大能承受较大压力，组织油脂外泄。当轮毂轴承总成停止工作，温度下降到环境温度时，由于高温时轴承内腔空气少量外漏，内部压强会低于大气压，外部空气带着外唇口处水分和灰尘有渗入的趋势，此时受外部压强作用，唇口c向腔内移动，唇口d受到压力作用与外法兰盘端面紧贴更紧密，从而唇边受到压力作用使密封圈与外法兰盘内壁贴的更紧密，密封圈阻止水分和灰尘进入轮毂单元总成内腔。轮毂单元总成内腔积累的少量水分，当轴承下次运转后，受离心力的作用将腔内积累的少量水分清理出去。

Claims (2)

1.用于轮毂轴承单元的四唇密封结构，其特征在于，该密封结构具有四个唇口(a，b，c，d)，其中，第一唇口(a)、第二唇口(b)和第三唇口(c)与磁性防尘盖接触密封，第一唇口(a)和第二唇口(b)在磁性防尘盖直径方向，第三唇口(c)在磁性防尘盖端面方向；密封结构与轮毂轴承单元的防尘盖之间形成三个内腔；第四唇口(d)与外法兰盘端面配合密封，使橡胶密封圈与轴承外法兰盘内壁紧密接触，起到防尘密封效果。
2.一种轮毂轴承单元，具有权利要求1中所述的四唇密封结构，其还包括内圈、磁性防尘盖、钢球、保持架、外法兰盘、内法兰盘及滚花螺栓构成，其特征在于：在轮毂单元的外法兰盘内圆上设有两列滚道，与轮毂单元外法兰盘内圆上设的两列滚道相对应的内圈和内法兰盘的外圆上也分别设有滚道；把钢球装在保持架上，依次将两只保持架分别安装在轮毂单元外法兰盘内圆与内圈和内法兰盘外圆之间的滚道内，把上密封圈和磁性防尘盖配合安装在外法兰盘内圆与内圈外圆的一端之间；下密封圈安装在内法兰盘外圆与外法兰盘一端的之间，再将螺栓装入内法兰盘的内孔。
CN 201220370306 2012-07-30 2012-07-30 具有四唇密封结构的轮毂轴承单元 Expired - Fee Related CN202707792U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220370306 CN202707792U (zh) 2012-07-30 2012-07-30 具有四唇密封结构的轮毂轴承单元

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220370306 CN202707792U (zh) 2012-07-30 2012-07-30 具有四唇密封结构的轮毂轴承单元

Publications (1)

Publication Number Publication Date
CN202707792U true CN202707792U (zh) 2013-01-30

Family

ID=47588099

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220370306 Expired - Fee Related CN202707792U (zh) 2012-07-30 2012-07-30 具有四唇密封结构的轮毂轴承单元

Country Status (1)

Country Link
CN (1) CN202707792U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102777500A (zh) * 2012-07-30 2012-11-14 湖北新火炬科技股份有限公司 具有四唇密封结构的轮毂轴承单元

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102777500A (zh) * 2012-07-30 2012-11-14 湖北新火炬科技股份有限公司 具有四唇密封结构的轮毂轴承单元

Similar Documents

Publication Publication Date Title
JP2014240676A (ja) シール付車輪支持用軸受ユニット
CN204239484U (zh) 一种轮毂轴承单元
CN102777500A (zh) 具有四唇密封结构的轮毂轴承单元
CN202707792U (zh) 具有四唇密封结构的轮毂轴承单元
CN204403162U (zh) 长寿命滚珠轴承结构
CN201339658Y (zh) 具有多密封面结构的轴承
CN204239455U (zh) 一种双重密封轴承
CN204628280U (zh) 一种重载多列球结构汽车轮毂轴承单元
US10962057B2 (en) Rolling-element bearing unit for a motor vehicle wheel or a motorbike rocker arm
CN202493584U (zh) 双列满装扣环型圆柱滚子轴承
CN204175806U (zh) 一种汽车张紧轮轴承
CN201330799Y (zh) 一种多唇多腔密封结构式轮毂总成
CN203560296U (zh) 一种密封型汽车轮毂轴承单元
CN203948446U (zh) 一种主轴式全密封单列满装圆柱滚子轴承
CN104847788A (zh) 一种汽车轮毂轴承单元
CN204921712U (zh) 汽车传动轴轴承防尘密封结构
JP2008256064A (ja) 車輪支持用軸受ユニット
CN205025928U (zh) 一种带法兰的双向推力角接触轴承
CN209262084U (zh) 一种双列圆锥轴承t型密封结构
CN105179487A (zh) 一种滚动轴承
JP2013210003A (ja) シール付タンデム型複列アンギュラ玉軸受
CN201763829U (zh) 一种密封结构轴承
CN203868139U (zh) 轮毂轴承单元的组合密封圈
CN204878359U (zh) 一种双重密封的三排滚子转盘轴承
CN203560297U (zh) 一种复合密封型汽车轮毂轴承单元

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: HUBEI NEW TORCH TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: HUBEI NEW TORCH SCIENCE + TECHNOLOGY CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 441004, Xinguang Road, automobile industrial park, Xiangyang hi tech Industrial Development Zone, Hubei 7, China

Patentee after: The new torch Science and Technology Ltd. in Hubei

Address before: 441004, Xinguang Road, automobile industrial park, Xiangyang hi tech Industrial Development Zone, Hubei 7, China

Patentee before: Hubei New Torch Science & Technology Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130130

Termination date: 20180730

CF01 Termination of patent right due to non-payment of annual fee