滚针轴承轴向偏移检测方法研究  

The Detecting Methodology Researches of the Axial Positional Shift of the Needle Roller Bearing

作　　者：康献民[1] 杜春英[1] 康华洲[2] 

机构地区：[1]五邑大学机电工程学院,广东江门529020 [2]中北大学机械工程与自动化学院,山西太原030051

出　　处：《机械设计与制造》2014年第1期144-146,150,共4页Machinery Design & Manufacture

基　　金：广东省自然科学基金项目资助(S2011010001082;S2012010008735)

摘　　要：轴向偏移是滚针轴承的一个重要的使用特性,在工作过程中偏移量的大小直接会影响到轴承的振动与噪声,进而影响发动机的使用性能。引起轴向偏移的因素很多,如轴承材料、装配、工作载荷等,主要针对保持架引导面偏差引起的滚针偏移作用力进行了分析,研究了滚针轴承间隙状态下滚针接触的变形几何条件,分析了轴向偏移的检测系统的基本参数,认为由于径向间隙的存在,滚针在接触过程中存在临界点,在临界点之前滚针与前滚针组成两滚针接触,在临界点以后与后滚针组成两滚针接触,检测转速对轴向偏移有较大的影响。Axial shift is the needle bearing＇s important service characteristic which impacts the bearing＇s vibration and noise directly in the working procession. And it also impacts the engine＇s service performance. Axial shift is affected by various factors including material, fit, service load and so on. The manuscript analyzes the needles shift forces caused by the retaincr＇s guide surface deviation.lt makes researches on the geometric condition of roller contact deformation in the condition of needle roller bearing clearance, then designs and calculates the basic parameters of the axial positional shift detecting system. Owing to the radial clearances, the manuscript thinks there are critical point in the needles contacting processes. Before the critical point, a front needle contacts anther front needle. After the critical point, the needles contact the rearing one and which makes a large effect on the axial positional shift caused by rotational speed through the inspection.

关 键 词：滚针轴承 轴向偏移 偏移检测 

分 类 号：TH16[机械工程—机械制造及自动化] TH133.333