CN111779763A - 直流牵引电机用抱轴瓦 - Google Patents
直流牵引电机用抱轴瓦 Download PDFInfo
- Publication number
- CN111779763A CN111779763A CN202010623501.0A CN202010623501A CN111779763A CN 111779763 A CN111779763 A CN 111779763A CN 202010623501 A CN202010623501 A CN 202010623501A CN 111779763 A CN111779763 A CN 111779763A
- Authority
- CN
- China
- Prior art keywords
- bush
- axle suspension
- traction motor
- direct current
- sealing
- 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.)
- Pending
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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/1045—Details of supply of the liquid to the bearing
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F16C33/121—Use of special materials
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/14—Special methods of manufacture; Running-in
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
本发明涉及机车直流牵引电机悬挂时所用的抱轴瓦,具体为直流牵引电机用抱轴瓦。解决现有抱轴瓦漏油、易失圆、耐磨性较差的问题。直流牵引电机用抱轴瓦包括瓦体,瓦体两端分别开有两道密封槽,密封槽内有密封毡圈,密封槽的结构保证抱轴瓦装配后密封毡圈的径向挤压变形量为0.8-1.2mm。瓦体外径与直流牵引电机机座内孔公差配合选用小过渡配合,保证其过盈量在‑0.05mm~+0.035mm之间;瓦体内径保证其与轮轴单边间隙在0.3mm~0.5mm之间。瓦体滑动面上设有锡基合金层。本发明采用双道密封槽,避免润滑油的泄漏。选用合适的外径公差,避免装配后抱轴瓦内孔变形失圆。选用合适的内径公差,避免抱轴瓦与轮轴直接摩擦。
Description
技术领域
本发明涉及机车直流牵引电机悬挂时所用的抱轴瓦,具体为直流牵引电机用抱轴瓦。
背景技术
直流牵引电机与机车轮轴安装方式分为滚动抱轴悬挂结构和滑动抱轴悬挂结构。现有滑动抱轴瓦每端只有一道密封槽,密封不良,在使用过程中滑动抱轴结构经常会出现漏油及碾瓦问题,甚至造成机破故障,影响机车的正常营运。另外,抱轴瓦滑动面耐磨性相对较差。再者,抱轴瓦内外径尺寸不合适,导致抱轴瓦装配后存在装夹不紧或者装夹过紧,使得抱轴瓦内径变形失圆,引起与轮轴直接摩擦。
发明内容
本发明解决现有抱轴瓦存在的上述缺陷和问题,提供一种直流牵引电机用抱轴瓦,以克服现有抱轴瓦存在的缺陷和问题。
本发明是采用如下技术方案实现的:直流牵引电机用抱轴瓦,包括瓦体,瓦体两端分别开有两道密封槽,密封槽内有密封毡圈,密封槽的结构保证抱轴瓦装配后密封毡圈的径向挤压变形量为0.8-1.2mm。机车轮轴与密封圈摩擦会引起机车轮轴温度升高,温度过高会导致碾瓦现象,因此,传统设计理念认为抱轴瓦每端只能有一道密封槽。本发明克服传统设计理念,瓦体两端分别开有两道密封槽,但通过设计合理的密封槽结构,使得抱轴瓦装配后密封毡圈的径向挤压变形量在1mm左右,这样每端两个密封毡圈可以起到增强密封的效果,防止润滑油泄露,同时通过密封毡圈的径向挤压变形量精确选择,也不会因为增多密封圈且过盈量太大,引起摩擦后温度升高,导致碾瓦现象发生。
进一步,瓦体外径与直流牵引电机机座内孔公差配合选用小过渡配合,保证其过盈量在-0.05mm~+0.035mm之间;瓦体内径保证其与轮轴单边间隙在0.3mm~0.5mm之间。这样既可以减少抱轴瓦装配后的变形量,也不致抱轴瓦从机座中松脱。
更进一步,瓦体滑动面上设有锡基合金层,提高摩擦面耐磨性。
本发明采用双道密封槽结构,避免润滑油的泄漏,避免了润滑油过量消耗,并污染环境。选用合适的外径公差,减小抱轴瓦与机座抱轴孔的过盈量,避免装配后抱轴瓦内孔变形失圆。选用合适的内径公差,补偿安装时外径的过盈或间隙引起轴瓦变形,使得轴瓦内孔与轮轴的润滑间隙均匀,避免抱轴瓦与轮轴直接摩擦,引起剧烈发热,以致碾瓦。
附图说明
图1为本发明所述直流牵引电机用抱轴瓦的结构示意图;
图2为本发明所述直流牵引电机用抱轴瓦的装配示意图。
图中:1-瓦体,2-轮轴,3-密封毡圈,4-锡基合金层,5-回油孔,6-油箱,7-润滑油,8-吸油毡,9-机座。
具体实施方式
直流牵引电机用抱轴瓦,包括瓦体1,瓦体1两端分别开有两道密封槽,密封槽内有密封毡圈3,密封槽的结构保证抱轴瓦装配后密封毡圈3的径向挤压变形量为0.8-1.2mm(如,可选用0.8 mm、0.9 mm、1.0 mm、1.1 mm、1.2 mm)。瓦体1外径与直流牵引电机机座内孔公差配合选用小过渡配合,保证其过盈量在-0.05mm~+0.035mm之间(如,可选用-0.05mm、0mm、+0.035mm);瓦体1内径保证其与轮轴2单边间隙在0.3mm~0.5mm之间(如,可选0.3mm、0.4 mm、0.5mm)。瓦体1滑动面上设有锡基合金层4,提高摩擦面耐磨性。具体实施时,瓦体1的毛坯和锡基合金层4采用离心浇注铸造工艺制成,减少铸造缺陷,改善铸件的机械性能和物理性能;再将整瓦切割成两半。车削内外孔及密封槽时用工装将上下瓦扣合回一个整圆,然后整体加工。与现有抱轴瓦一样,瓦体1上开有与密封槽底相通的回油孔5,并且回油孔5与靠内的密封槽槽底相通,避免密封槽堆积的润滑油溢出,造成浪费和污染;回油孔结构设计,可以将抱轴瓦与轮轴之间多余的润滑油输送回油箱中,循环利用。瓦体1上开有进油孔,进油孔内有吸油毡8,吸油毡8将油箱6内的润滑油7送至瓦体1与轮轴2之间。
Claims (5)
1.一种直流牵引电机用抱轴瓦,包括瓦体(1),其特征在于,瓦体(1)两端分别开有两道密封槽,密封槽内有密封毡圈(3),密封槽的结构保证抱轴瓦装配后密封毡圈(3)的径向挤压变形量为0.8-1.2mm。
2.根据权利要求1所述的直流牵引电机用抱轴瓦,其特征在于,瓦体(1)外径与直流牵引电机机座内孔公差配合选用小过渡配合,保证其过盈量在-0.05mm~+0.035mm之间;瓦体(1)内径保证其与轮轴(2)单边间隙在0.3mm~0.5mm之间。
3.根据权利要求1或2所述的直流牵引电机用抱轴瓦,其特征在于,瓦体(1)滑动面上设有锡基合金层(4)。
4.根据权利要求3所述的直流牵引电机用抱轴瓦,其特征在于,瓦体(1)的毛坯和锡基合金层(4)采用离心浇注铸造工艺制成。
5.根据权利要求4所述的直流牵引电机用抱轴瓦,其特征在于,瓦体(1)上开有与密封槽底相通的回油孔(5),并且回油孔(5)与靠内的密封槽槽底相通。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010623501.0A CN111779763A (zh) | 2020-07-01 | 2020-07-01 | 直流牵引电机用抱轴瓦 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010623501.0A CN111779763A (zh) | 2020-07-01 | 2020-07-01 | 直流牵引电机用抱轴瓦 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111779763A true CN111779763A (zh) | 2020-10-16 |
Family
ID=72761562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010623501.0A Pending CN111779763A (zh) | 2020-07-01 | 2020-07-01 | 直流牵引电机用抱轴瓦 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111779763A (zh) |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030015352A1 (en) * | 2001-07-17 | 2003-01-23 | Robin Lawrence E. | Flow retarder for bearing assembly of downhole drilling motor |
CN101169255A (zh) * | 2006-10-23 | 2008-04-30 | 湖南迅达集团有限公司 | 瓶内再生沼气净化器与压力表装置 |
CN101614285A (zh) * | 2009-06-05 | 2009-12-30 | 宁波星箭航天机械厂 | 球阀 |
CN201723589U (zh) * | 2010-07-28 | 2011-01-26 | 戚墅堰机车车辆厂工业公司 | 一种铜合金抱轴瓦 |
CN202160048U (zh) * | 2011-07-26 | 2012-03-07 | 佳木斯电机股份有限公司 | 大型轴瓦电机内腔的防漏油结构 |
CN102644660A (zh) * | 2012-05-11 | 2012-08-22 | 西南石油大学 | 一种井口可调井下滑动轴承节 |
CN103481959A (zh) * | 2013-09-29 | 2014-01-01 | 昆山凯诺尔金属制品有限公司 | 一种引导轮装置 |
CN103835863A (zh) * | 2014-03-07 | 2014-06-04 | 国电联合动力技术有限公司 | 一种水下密封系统、应用其的潮汐能发电机组及应用方法 |
CN103925373A (zh) * | 2014-04-30 | 2014-07-16 | 湖北新置密封件有限公司 | 一种迷宫式停机双向密封装置 |
CN204082424U (zh) * | 2014-06-30 | 2015-01-07 | 杭州林东新能源科技股份有限公司 | 用于潮流能发电的水下轴系转动保护装置及潮流发电装置 |
CN204299572U (zh) * | 2014-10-31 | 2015-04-29 | 中国石油化工股份有限公司 | 一种水平井找漏窜管柱 |
CN110433725A (zh) * | 2019-08-30 | 2019-11-12 | 四川星一环宇智能科技有限公司 | 无菌罐搅拌驱动结构 |
-
2020
- 2020-07-01 CN CN202010623501.0A patent/CN111779763A/zh active Pending
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030015352A1 (en) * | 2001-07-17 | 2003-01-23 | Robin Lawrence E. | Flow retarder for bearing assembly of downhole drilling motor |
CN101169255A (zh) * | 2006-10-23 | 2008-04-30 | 湖南迅达集团有限公司 | 瓶内再生沼气净化器与压力表装置 |
CN101614285A (zh) * | 2009-06-05 | 2009-12-30 | 宁波星箭航天机械厂 | 球阀 |
CN201723589U (zh) * | 2010-07-28 | 2011-01-26 | 戚墅堰机车车辆厂工业公司 | 一种铜合金抱轴瓦 |
CN202160048U (zh) * | 2011-07-26 | 2012-03-07 | 佳木斯电机股份有限公司 | 大型轴瓦电机内腔的防漏油结构 |
CN102644660A (zh) * | 2012-05-11 | 2012-08-22 | 西南石油大学 | 一种井口可调井下滑动轴承节 |
CN103481959A (zh) * | 2013-09-29 | 2014-01-01 | 昆山凯诺尔金属制品有限公司 | 一种引导轮装置 |
CN103835863A (zh) * | 2014-03-07 | 2014-06-04 | 国电联合动力技术有限公司 | 一种水下密封系统、应用其的潮汐能发电机组及应用方法 |
CN103925373A (zh) * | 2014-04-30 | 2014-07-16 | 湖北新置密封件有限公司 | 一种迷宫式停机双向密封装置 |
CN204082424U (zh) * | 2014-06-30 | 2015-01-07 | 杭州林东新能源科技股份有限公司 | 用于潮流能发电的水下轴系转动保护装置及潮流发电装置 |
CN204299572U (zh) * | 2014-10-31 | 2015-04-29 | 中国石油化工股份有限公司 | 一种水平井找漏窜管柱 |
CN110433725A (zh) * | 2019-08-30 | 2019-11-12 | 四川星一环宇智能科技有限公司 | 无菌罐搅拌驱动结构 |
Non-Patent Citations (3)
Title |
---|
徐祥发: "《机械密封手册》", 31 October 1990 * |
明仁雄等: "《液压与气压传动》", 31 October 2003 * |
赵贵祥: "《钻探液压技术》", 30 April 1985 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104246258A (zh) | 能够在预装配情况下压入的滚动轴承单元 | |
CN205331209U (zh) | 一种高效滚动轴承 | |
CN105317928A (zh) | 梯级链的润滑密封结构 | |
CN102000617B (zh) | 一种立轴式制砂机主轴系统 | |
CN204037339U (zh) | 汽车传动轴中间支撑托架总成 | |
WO2010108394A1 (zh) | 一种含油滑动轴承系统及其应用的电机 | |
CN111779763A (zh) | 直流牵引电机用抱轴瓦 | |
CN213575155U (zh) | 一种包括内衬套的深沟球轴承及摩托车传动结构 | |
CN203670481U (zh) | 汽车轮毂轴承外圈 | |
CN205298275U (zh) | 一种新型深沟球轴承 | |
JP6084365B2 (ja) | 保持器および玉軸受 | |
CN105090258A (zh) | 齿轮泵的滚动轴承结构及齿轮泵 | |
CN204755608U (zh) | 一种卡车轮毂轴承的密封结构 | |
CN201807390U (zh) | 一种立轴式制砂机主轴系统 | |
CN213016474U (zh) | 凸轮轴衬套安装结构 | |
CN205937457U (zh) | 一种新型的轮毂轴承 | |
CN215673155U (zh) | 一种寿命长轴承 | |
CN215360752U (zh) | 一种轮毂密封装配结构 | |
CN220060249U (zh) | 一种外圈端面焊接挡片的轴承 | |
CN221236808U (zh) | 轴套防磨损起动机单向器 | |
CN220816260U (zh) | 一种多凸度滚道的轮毂单元 | |
CN214874004U (zh) | 车用轮毂总成 | |
CN203836161U (zh) | 用于车辆驱动桥减速器的突缘、密封总成 | |
CN216788988U (zh) | 一种新型深沟球轴承 | |
CN218670429U (zh) | Rv减速器、工业机器人 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201016 |
|
RJ01 | Rejection of invention patent application after publication |