§12 滑动轴承.pdf

第十二章 Sleeve bearings 滑动轴承 §12－1 General considerations 概述 §12－2 Materials of sleeve bearings (materials of bearing shells and inserts) 滑动轴承材料（轴瓦及轴承衬材料） §12－3 Simplified calculations for bearings operating with non-fluid friction 非液体摩擦轴承设计计算 §12－4 Load-carrying mechanics of the hydrodynamic lubrication bearings 液体动压润滑轴承承载机理 §12－1 general considerations 概述 一、 Types of sleeve bearings 分类 一、 Types of sleeve bearings 分类 I With respect to friction condition ： I With respect to friction condition ： 按摩擦状态分 按摩擦状态分 1） Non-fluid friction bearings 1） Non-fluid friction bearings 非液体摩擦轴承 非液体摩擦轴承 2 ） Fluid friction bearings Fluid friction bearings 液体摩擦轴承 II With respect to load-carrying direction 按承载方向分： 1）Thrust bearings 推力轴承：FA 2 ） Radial bearings 向心轴承：Fr Radial bearings 向心轴承：Fr •Solid bearings :used for low speed and light load shaft (the clearance in the bearing can not be adjusted and it is difficult to assembly) 整体式：低速轻载（间隙不可调，安装困难） •Split bearings: common application 剖分式：一般应用 Solid shell Split shells • 二、 Characteristics and applications 特点和应用 1、Advantages ① Operating steady , reliably and noiselessly 工作稳定、可靠、无噪音 ② Under fluid friction, friction and wear are small and oil film has a marked damping effect 液体摩擦时，摩擦、磨损小，油膜吸振 2 、 Shortcomings High starting torque 起动阻力大 3 、Applications 应用 ①Shafts running at exceptionally high speeds or requiring high-precision guidance or carrying heavy load （fluid friction bearings ） 高速、重载、精密（液体摩擦滑动轴承） ②Shafts r