CN105485168B - 一种径向支承垫织构表面摩擦副 - Google Patents

一种径向支承垫织构表面摩擦副 Download PDF

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CN105485168B
CN105485168B CN201610007796.2A CN201610007796A CN105485168B CN 105485168 B CN105485168 B CN 105485168B CN 201610007796 A CN201610007796 A CN 201610007796A CN 105485168 B CN105485168 B CN 105485168B
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rectangle
support pads
bearing
curved surface
bearing block
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CN105485168A (zh
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赵建华
高殿荣
毋少峰
梁瑛娜
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Yanshan University
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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
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/10Construction relative to lubrication
    • F16C33/1025Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/1045Details of supply of the liquid to the bearing
    • 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
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/06Sliding surface mainly made of metal
    • F16C33/10Construction relative to lubrication
    • F16C33/1025Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/1065Grooves on a bearing surface for distributing or collecting the liquid

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

一种径向支承垫织构表面摩擦副,轴承座在与轴承配合的两个表面上,均设有6个曲面矩形的支承垫。曲面矩形支承垫的中部为矩形腔,矩形腔区域内的深部不同,前半区域为矩形深腔,后半区域为矩形浅腔。每个矩形深腔上均设有一个通孔,即为进液孔,进液孔延伸到轴承座的外表面。矩形腔与曲面矩形的支承垫之间为封液带,在封液带的上表面设有润滑凹槽,润滑凹槽的截面为圆柱形。相邻两个曲面矩形的支承垫之间置有条形凹槽,即为回液槽,回液槽的表面设有回液孔。本发明依靠封液带表面的润滑凹坑将润滑液存储在凹坑中,而在轴承座发生“烧瓦”时将储存的润滑液再次涂敷在摩擦表面,提高轴承的摩擦磨损性能,延长轴承的运行寿命。

Description

一种径向支承垫织构表面摩擦副
技术领域 本发明涉及水润滑静压支承技术领域。
背景技术 自然界海水、淡水的比热大、清洁无污染,因此水润滑轴承的热变形小、运行精度高、环境污染风险为零、价格低廉,在海洋开发、食品医疗等领域得到了长足的发展。但由于海淡水自身独特的物理及理化性质,其粘度小、泄漏严重、承载能力小、润滑性差、腐蚀性强。它的不足之处:水润滑轴承的承载能力较小,容易发生过载而“烧瓦”,使得轴承摩擦副的摩擦磨损非常严重。
发明内容 本发明的目的是提供一种封液带表面进行织构化处理,减阻降磨,改善水润滑轴承发生“烧瓦”时轴承座表面与转轴间的摩擦磨损性能的径向支承垫织构表面摩擦副。
本发明主要包括:轴承座、轴承、支承垫、矩形深腔、矩形浅腔、封液带、润滑凹槽和回液槽。其中,轴承座在与轴承配合的两个表面上,均设有6个曲面矩形的支承垫,轴承座在与轴承配合的两个表面上的对应的曲面矩形支承垫位置相同。曲面矩形支承垫的中部为矩形腔,矩形腔区域内的深部不同,沿着轴转动方向,前半区域为矩形深腔,后半区域为矩形浅腔。在每个矩形深腔上均设有一个通孔,即为进液孔,该进液孔延伸到轴承座的外表面。矩形腔与曲面矩形的支承垫之间为封液带,在该封液带的上表面设有若干润滑凹槽,润滑凹槽的截面可为圆柱形、锥形、半球形、梯形等等。最好,润滑凹槽的截面为圆柱形。相邻两个曲面矩形的支承垫之间置有条形凹槽,即为回液槽,回液槽的表面设有回液孔。
本发明在使用时,润滑液由进液孔流入并填满矩形腔。由于转动轴的转动作用,润滑液便由矩形腔的深腔流入到浅腔;在流经深腔与浅腔的阶梯区域时,产生动压效应,提供动压承载力。由于进液孔持续向矩形腔内供液,润滑液只能从四周的封液带流出。由于封液带与转动轴间的间隙非常小,仅有30微米左右。因此润滑液流过封液带时,产生较大的液阻,使得回字形槽及内部支承区域的静压力升高,产生较大的静压支承力。
本发明与现有技术相比具有如下优点:
(1)由于海淡水的粘度小,因此轴承的静态、动态承载力较小,最终导致轴承的承载力及刚度较小,容易因过载而导致轴承与支承座间发生直接接触,产生较大的摩擦磨损。
(2)依靠封液带表面的润滑凹坑将润滑液存储在凹坑中,而在轴承座发生“烧瓦”时将储存的润滑液再次涂敷在摩擦表面,提高轴承的摩擦磨损性能,延长轴承的运行寿命。
附图说明
图1是海淡水润滑轴承轴承座示意图;
图2是海淡水润滑轴承的轴承座剖视图;
图3是海淡水润滑轴承的径向支承垫的结构示意图;
图4是圆柱形润滑凹坑剖面图;
图5是锥形润滑凹坑剖面图;
图6是半球形润滑凹坑剖面图;
图7是球形润滑凹坑剖面图;
图8是梯形润滑凹坑剖面图;
图9是椭球形润滑凹坑剖面图。
具体实施方式 在图1至图8所示的本发明的示意简图中,轴承座1在与轴承11的轴肩2配合的两个表面上,均设有6个曲面矩形的支承垫3,轴承座在与轴承配合的两个表面上的对应的曲面矩形支承垫位置相同。曲面矩形支承垫的中部为矩形腔,矩形腔区域内的深部不同,沿着轴转动方向,前半区域为矩形深腔4,后半区域为矩形浅腔5。在每个矩形深腔上均设有一个通孔,即为进液孔6,该进液孔延伸到轴承座的外表面。矩形腔与曲面矩形的支承垫之间为封液带7,在该封液带的上表面设有润滑凹槽8,润滑凹槽的截面为圆柱形。相邻两个曲面矩形的支承垫之间置有条形凹槽,即为回液槽9,回液槽的表面设有回液孔10。

Claims (2)

1.一种径向支承垫织构表面摩擦副,主要包括轴承座、轴承、支承垫、矩形深腔、矩形浅腔、封液带、润滑凹槽和回液槽,其特征在于:轴承座在与轴承配合的两个表面上,均设有6个曲面矩形的支承垫,轴承座在与轴承配合的两个表面上的对应的曲面矩形支承垫位置相同,曲面矩形支承垫的中部为矩形腔,矩形腔区域内的深部不同,沿着轴转动方向,前半区域为矩形深腔,后半区域为矩形浅腔,在每个矩形深腔上均设有一个通孔,即为进液孔,该进液孔延伸到轴承座的外表面,矩形腔与曲面矩形的支承垫之间为封液带,在该封液带的上表面设有润滑凹槽,相邻两个曲面矩形的支承垫之间置有条形凹槽,即为回液槽,回液槽的表面设有回液孔。
2.根据权利要求1所述的一种径向支承垫织构表面摩擦副,其特征在于:润滑凹槽的截面为圆柱形。
CN201610007796.2A 2016-01-07 2016-01-07 一种径向支承垫织构表面摩擦副 Active CN105485168B (zh)

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CN105822660B (zh) * 2016-05-03 2018-07-03 西安交通大学 一种高压区耦合的槽式制冷剂动压流体无油润滑轴承副
WO2019009345A1 (ja) * 2017-07-07 2019-01-10 イーグル工業株式会社 摺動部材
CN112539334A (zh) * 2020-10-27 2021-03-23 清华大学 带倾角的表面微凹织构
CN113051684B (zh) * 2021-03-26 2022-08-02 天津大学 一种基于多尺度界面调控的跨临界主轴系统设计方法

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CN101576121A (zh) * 2009-06-17 2009-11-11 重庆大学 动静压混合油膜轴承
CN203594686U (zh) * 2013-10-28 2014-05-14 南车玉柴四川发动机股份有限公司 一种发动机曲轴止推

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US5403098A (en) * 1992-09-18 1995-04-04 Koyo Seiko Co., Ltd. Hydrodynamic bearing device
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CN101576121A (zh) * 2009-06-17 2009-11-11 重庆大学 动静压混合油膜轴承
CN203594686U (zh) * 2013-10-28 2014-05-14 南车玉柴四川发动机股份有限公司 一种发动机曲轴止推

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