LUBRICATION MECHANISM OF SOLID LUBRICANTS PARTICLES ADDED INTO LUBRICATING PILS

润滑丸中添加固体润滑剂颗粒的润滑机理

基本信息

批准号：
08650175
负责人：
IZUMI Naoshi
金额：
$ 1.47万
依托单位：
KYUSHU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08650175/
关键词：
SOLID LUBRICANT SCORING ROLLING CONTACT FATIGUE FALSE BRINELLING FRETTING ROLLING BEARING 転がり滑り接触

项目摘要

Scoring proof capability and fretting proof capability of lubricating oils or grease containing solid lubricantsparticles have been investigated by roliing-sliding contact of two rollers and rolling bearings in oscillatory motion. As a reference of fretting proof capability, the effect of operatlng condition such as racial load, oscillationangle and frequency on fretting llfe of osciallatory bearing was studied. And a new test methcd to evaluate antipittinvg performance of lubricating oiis in rolling-sllding contact. th findings are as foll0ws :1.Scoring proof capability of lubricating oils containing particles of molybdenum disulfide, graptdte, carbonfluoride or boron nitride were investigated. (1) Carbon fiuoride and boron nitride added together with a dispers-ant have good scoring proof capability and decrease the coefficient of friction. (2) Addition of molybdenum disfilnde or graphite neither improved scoring proof cability nor modified the frictional characteristics.2.Because the effect of surface roughness of test rollers has decisive effect on pitting life, a new test method in wich the harder roller is not replaced for test oils to be evaluated was phned and proved effective by experiments.3.As for the quite heavy wear in rolling bearings in oscillatory motion due to fretting, which is called as false brinelling, the fretting life was defined with the oscillation number until the relative displacement of the innerring to the outer ring due to wear reached to a threshold. (1) In the case of grease lubrication, as temperature rises, the state of oil-film formation (measured by the electric reslstancc methcd) becomes beetter and the fretting llfe increases. (2) the effect of the oscillation angle and frequency on fretting life can be correlated with thestate of oil-filn formation. (3) A grease containing molydenum disulfide exhibited the pcxssibillty of frettingproof capabillty in the condition in which oil-fiim did not formed.

通过在振荡运动中的两个滚筒和滚动轴承的旋转式接触，研究了润滑油或含有固体润滑剂颗粒的润滑油或油脂的测得能力。为了参考壁板防护能力，研究了操作条件（例如种族负载，振荡和频率）对振动轴承轴承的freffe的影响。以及一种新的测试METHCD，以评估在滚动接触中润滑OIIS的反替氏菌性能。研究结果如foll0ws：1。含有二硫化钼颗粒，graptdte，carbonfluoride或硝酸硼颗粒的润滑油的确定能力。（1）添加的碳和氮化碳和氮化碳具有良好的得分能力，并降低了摩擦系数。（2）添加钼或石墨既不改进得分能力，也不会改善摩擦特征。2.由于测试滚筒的表面粗糙度的影响对寿命具有决定性的影响，因此，一种新的测试方法，在较硬的滚动中，无法通过per逐渐付出了较重的型号。插图被称为假元素，将插图寿命定义为振荡数字，直到由于磨损达到阈值而导致内部环的相对位移。（1）在润滑油润滑的情况下，随着温度的升高，石油膜形成的状态（由电reslstancc Methcd测得）变成啤酒，而折线的LLFE升高。（2）振荡角度和频率对微分寿命的影响与油脂形成的结构有关。（3）在没有形成油-fiim的情况下，含有二硫化钼的油脂表现出pcxsssibillty的pcxsssibillty。