基于有限元法的推力圆锥滚子轴承动态接触分析
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摘要
为了用推力圆锥滚子轴承代替推力圆柱滚子轴承,并应用于盾构机主轴承,根据接触力学理论,用有限元方法对应用于盾构机主轴承的推力圆锥滚子轴承进行了静态和动态接触分析,分析了套圈和滚动体的接触力、接触应力、速度和摩擦损耗等。针对轴承的特点和应用工况,重点研究了滚子和动圈的速度、接触力和接触应力,滚子和套圈挡边之间存在的滑动摩擦。研究结果表明:滚子与套圈接触应力在滚子两端存在由"边缘效应"引起应力集中;轴承的摩擦损耗主要来自于滚子和套圈挡边之间存在的滑动摩擦,并计算出了相应的摩擦损耗量;为推力圆锥滚子轴承应用于盾构机主轴承提供了研究基础和参考。
In order to replace thrust cylindrical roller bearings with thrust tapered roller bearings in shields, the static and dynamic contact analysis of thrust tapered roller bearing used in shields were done based on finite element method,according to contact mechanics theory. The contact force, contact stress, speed and friction loss etc. were analyzed. According to the characteristic of the bearing and the working condition, the research was focused on the velocities of the roller and the moving ring, the contact forces and the contact stresses between the roller and the moving ring and the sliding friction between the roller endface and the ring ribs. The results show that the stress concentrations caused by contact edge-effect between roller and ring exist at the roller ends, and that the sliding friction loss is mostly from the sliding between roller endface and ring ribs and the friction loss capacity factor is calculated with FEA. The presented paper offers a research base and a reference for thrust tapered roller bearings to use in shields.
In order to replace thrust cylindrical roller bearings with thrust tapered roller bearings in shields, the static and dynamic contact analysis of thrust tapered roller bearing used in shields were done based on finite element method,according to contact mechanics theory. The contact force, contact stress, speed and friction loss etc. were analyzed. According to the characteristic of the bearing and the working condition, the research was focused on the velocities of the roller and the moving ring, the contact forces and the contact stresses between the roller and the moving ring and the sliding friction between the roller endface and the ring ribs. The results show that the stress concentrations caused by contact edge-effect between roller and ring exist at the roller ends, and that the sliding friction loss is mostly from the sliding between roller endface and ring ribs and the friction loss capacity factor is calculated with FEA. The presented paper offers a research base and a reference for thrust tapered roller bearings to use in shields.
引文
[1] 闻传涛,杨涌泉,拾益跃.大型推力圆锥滚子轴承滚道及挡边尺寸的确定[J].轴承,2000,5(5):11-13.
[2] 陈朔东,陈武亮.新型推力滚子轴承的强度计算[J].机械工程师,2003,1(1):51-52.
[3] 陈武亮.新型推力滚子轴承的强度计算[J].机械工程师,2004,6(6):45-47.
[4] 王玉敏,王振英,刘丽红,等.推力滚子轴承挡边强度计算[J].哈尔滨轴承,2004,12(4):15-17.
[5] 黄龙发,许正功,韩志刚.圆锥滚子推力轴承结构改进设计及有限元分析[J].机械,2006,12(12):58-61,64.
[6] 张阗,李雪飞,周铭丽.轧机压下机构用满装推力圆锥滚子轴承的设计[J].轴承,2009,9(9):15-16.
[7] 魏延刚.新型滚动体轴承—深穴空心圆柱滚子轴承承载性能的理论研究[J].机械工程学报,2005,2(2):107-111.
[8] 张杰,梁政,韩传军,等.深穴空心推力圆锥滚子轴承的设计及接触分析[J].华中科技大学学报,2014,6(6):28-32.
[2] 陈朔东,陈武亮.新型推力滚子轴承的强度计算[J].机械工程师,2003,1(1):51-52.
[3] 陈武亮.新型推力滚子轴承的强度计算[J].机械工程师,2004,6(6):45-47.
[4] 王玉敏,王振英,刘丽红,等.推力滚子轴承挡边强度计算[J].哈尔滨轴承,2004,12(4):15-17.
[5] 黄龙发,许正功,韩志刚.圆锥滚子推力轴承结构改进设计及有限元分析[J].机械,2006,12(12):58-61,64.
[6] 张阗,李雪飞,周铭丽.轧机压下机构用满装推力圆锥滚子轴承的设计[J].轴承,2009,9(9):15-16.
[7] 魏延刚.新型滚动体轴承—深穴空心圆柱滚子轴承承载性能的理论研究[J].机械工程学报,2005,2(2):107-111.
[8] 张杰,梁政,韩传军,等.深穴空心推力圆锥滚子轴承的设计及接触分析[J].华中科技大学学报,2014,6(6):28-32.