CN202851683U - 汽车轮毂轴承锁紧结构 - Google Patents

汽车轮毂轴承锁紧结构 Download PDF

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CN202851683U
CN202851683U CN2012205409389U CN201220540938U CN202851683U CN 202851683 U CN202851683 U CN 202851683U CN 2012205409389 U CN2012205409389 U CN 2012205409389U CN 201220540938 U CN201220540938 U CN 201220540938U CN 202851683 U CN202851683 U CN 202851683U
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locking nut
locking
section
stage casing
axle tube
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徐友良
陈作云
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SAIC Iveco Hongyan Commercial Vehicle Co Ltd
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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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • 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
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/546—Systems with spaced apart rolling bearings including at least one angular contact bearing
    • F16C19/547—Systems with spaced apart rolling bearings including at least one angular contact bearing with two angular contact rolling bearings
    • F16C19/548—Systems with spaced apart rolling bearings including at least one angular contact bearing with two angular contact rolling bearings in O-arrangement
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/60—Positive connections with threaded parts, e.g. bolt and nut connections
    • 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
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063—Fixing them on the shaft

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

本实用新型公开了一种汽车轮毂轴承锁紧结构，包括锁紧螺母和半轴套管；同实用新型采用物理手段，使锁紧螺母左段的孔壁变薄，再在半轴套管上设置对应的锁紧槽，锁紧螺母和半轴套管套接好后，将锁紧螺母左段敲打变形，使锁紧螺母左段嵌入锁紧槽内，从而对锁紧螺母的周向运动进行锁定；本实用新型的有益技术效果是：结构简单，加工、安装方便，且结构稳定性较好。

Description

汽车轮毂轴承锁紧结构
技术领域
    本实用新型涉及一种限制套接件轴向位移的结构，尤其涉及一种汽车轮毂轴承锁紧结构。
背景技术
汽车高速行驶时，会产生振动力和冲击力，当这些作用力传递到汽车轮毂轴承上时，套接在轮毂轴承上的锁紧螺母容易发生周向窜动，自动回松，如果任其发展，将会导致轴承间隙不断增大，加快轮毂内的不正常磨损，最终导致制动鼓、制动蹄片、轴承和半轴套管等一并损坏，造成汽车轮毂脱离的重大事故。
为了避免前述情况的发生，现有技术中，汽车上多采用双锁紧螺母加锁片结构，锁紧螺母外圆上开有花键槽，装配时，先拧紧第一个锁紧螺母，放入锁片，再拧紧第二个锁紧螺母，最后用工具将锁片上的锁边分别敲入两个锁紧螺母的花键槽中。该锁紧结构中采用的零部件种类、数量较多，生产成本较高，且装配复杂，装配效率低。
实用新型内容
针对背景技术中的问题，本实用新型提出了一种汽车轮毂轴承锁紧结构，包括锁紧螺母和半轴套管；锁紧螺母外壁的轴截面为变截面结构，锁紧螺母左段的外径最小，锁紧螺母中段的外径大于锁紧螺母左段的外径，锁紧螺母右段的外径大于锁紧螺母中段的外径，左段、中段和右段之间平滑过度；锁紧螺母内孔的轴截面为变截面结构，锁紧螺母左段的内孔直径大于锁紧螺母中段的内孔直径，锁紧螺母右段的内孔直径与锁紧螺母中段的内孔直径相同；右段和中段长度范围内的锁紧螺母内孔上设置有内螺纹；
半轴套管端部的外壁上设置有锁紧槽，半轴套管中部的外壁上设置有外螺纹；
锁紧螺母套接在半轴套管外壁上，锁紧螺母上的内螺纹与半轴套管上的外螺纹位置对应，锁紧螺母左段将锁紧槽覆盖；锁紧螺母和半轴套管套接好后，敲击锁紧螺母左段，使锁紧螺母左段发生形变并嵌入锁紧槽内。
前述结构部件数量少，装配方便，且锁紧装置和螺母为整体结构，便于加工制作，成本较低，经过实验验证，该结构稳定可靠，可有效限制螺母的周向窜动，从而限制螺母的的轴向位移，保证车辆的安全性。
为了便于装配时拧紧螺母，本实用新型还作了如下改进：锁紧螺母中段的外壁上设置有多个装配平面，多个装配平面沿锁紧螺母周向均匀设置。装配平面用于与工具接触受力，便于将锁紧螺母拧紧。
本实用新型的有益技术效果是：结构简单，加工、安装方便，且结构稳定性较好。
附图说明
图1、锁紧螺母轴截面结构示意图；
图2、锁紧螺母结构立体示意图；
图3、采用本实用新型的锁紧结构装配示意图；
图4、锁紧槽位置处的立体结构示意图。
具体实施方式
一种汽车轮毂轴承锁紧结构，包括锁紧螺母2和半轴套管1；锁紧螺母2外壁的轴截面为变截面结构，锁紧螺母2左段的外径最小，锁紧螺母2中段的外径大于锁紧螺母2左段的外径，锁紧螺母2右段的外径大于锁紧螺母2中段的外径，左段、中段和右段之间平滑过度；锁紧螺母2内孔的轴截面为变截面结构，锁紧螺母2左段的内孔直径大于锁紧螺母2中段的内孔直径，锁紧螺母2右段的内孔直径与锁紧螺母2中段的内孔直径相同；右段和中段长度范围内的锁紧螺母2内孔上设置有内螺纹；半轴套管1端部的外壁上设置有锁紧槽，半轴套管1中部的外壁上设置有外螺纹；锁紧螺母2套接在半轴套管1外壁上，锁紧螺母2上的内螺纹与半轴套管1上的外螺纹位置对应，锁紧螺母2左段将锁紧槽覆盖；锁紧螺母2和半轴套管1套接好后，敲击锁紧螺母2左段，使锁紧螺母2左段发生形变并嵌入锁紧槽内（如图4中标记A位置处所示，）。
在前述结构的基础上，本实用新型还作了如下改进：锁紧螺母2中段的外壁上设置有多个装配平面（如图2中标记3所示），多个装配平面沿锁紧螺母2周向均匀设置。

Claims (2)

1.一种汽车轮毂轴承锁紧结构，其特征在于：包括锁紧螺母（2）和半轴套管（1）；锁紧螺母（2）外壁的轴截面为变截面结构，锁紧螺母（2）左段的外径最小，锁紧螺母（2）中段的外径大于锁紧螺母（2）左段的外径，锁紧螺母（2）右段的外径大于锁紧螺母（2）中段的外径，左段、中段和右段之间平滑过度；锁紧螺母（2）内孔的轴截面为变截面结构，锁紧螺母（2）左段的内孔直径大于锁紧螺母（2）中段的内孔直径，锁紧螺母（2）右段的内孔直径与锁紧螺母（2）中段的内孔直径相同；右段和中段长度范围内的锁紧螺母（2）内孔上设置有内螺纹；
半轴套管（1）端部的外壁上设置有锁紧槽，半轴套管（1）中部的外壁上设置有外螺纹；
锁紧螺母（2）套接在半轴套管（1）外壁上，锁紧螺母（2）上的内螺纹与半轴套管（1）上的外螺纹位置对应，锁紧螺母（2）左段将锁紧槽覆盖；锁紧螺母（2）和半轴套管（1）套接好后，敲击锁紧螺母（2）左段，使锁紧螺母（2）左段发生形变并嵌入锁紧槽内。
2.根据权利要求1所述的汽车轮毂轴承锁紧结构，其特征在于：锁紧螺母（2）中段的外壁上设置有多个装配平面，多个装配平面沿锁紧螺母（2）周向均匀设置。
CN2012205409389U 2012-10-22 2012-10-22 汽车轮毂轴承锁紧结构 Expired - Lifetime CN202851683U (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015154618A1 (zh) * 2014-04-12 2015-10-15 山东浩信机械有限公司 轮毂单元
CN105257713A (zh) * 2015-11-03 2016-01-20 江苏超力电器有限公司 一种新型轴承紧固装置
WO2017020872A1 (zh) * 2015-08-06 2017-02-09 杨东佐 一种连接轴装置及自行车

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015154618A1 (zh) * 2014-04-12 2015-10-15 山东浩信机械有限公司 轮毂单元
WO2017020872A1 (zh) * 2015-08-06 2017-02-09 杨东佐 一种连接轴装置及自行车
CN105257713A (zh) * 2015-11-03 2016-01-20 江苏超力电器有限公司 一种新型轴承紧固装置

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Granted publication date: 20130403