球轴承塑料保持架锁口变形及模态分析  

Deformation and Modal Analysis of Plastic Cage Lock of Ball Bearing

作　　者：李厅 杨兰玉[2] 刘德利 周猛 金翀 Li Ting;Yang Lanyu;Liu Deli;Zhou Meng;Jin Chong(School of Mechanical and Electrical Engineering,Soochow University,Suzhou 215006,China;School of Mechanical Engineering,Changshu Institute of Technology,Changshu 215500,China;China University of Mining and Technology,School of Mechanical Engineering,Xuzhou 221116,China;Changshu CSC Bearing Co.,Ltd.,Changshu 215500,China)

机构地区：[1]苏州大学机电工程学院,江苏苏州215006 [2]常熟理工学院机械工程学院,江苏常熟215500 [3]中国矿业大学机电工程学院,江苏徐州221116 [4]常熟长城轴承有限公司,江苏常熟215500

出　　处：《煤矿机械》2020年第2期82-84,共3页Coal Mine Machinery

摘　　要：工程塑料保持架托辊轴承多用于煤矿输送机械。在高转速下,工程塑料保持架兜孔锁口处会产生扩张变形,严重时会导致保持架的脱落。根据保持架轻量化原则,在原有保持架基础上减轻梁部质量,利用Pro/E软件分别建立了深沟球轴承工程塑料保持架改进前、后的三维模型,在ANSYS Workbench中对改进前、后保持架兜孔锁口的位移变化及保持架自由模态进行了有限元分析。结果表明:改进后保持架的最高许用转速为15 000 r/min;在10 000 r/min工况下,改进后的保持架面内弯曲振动频率相比改进前有效避免产生共振的比例提高14%~66%;改进后的保持架径向翘曲振动频率相比改进前有效避免产生共振的比例提高30%~60%。Supporting roller bearing of engineering plastic cage is mostly used in coal mine conveying machinery. At high rotating speed, the pocket lock of the engineering plastic cage will be expanded and deformed, which will cause the cage to fall off seriously. According to the principle of lightening the cage, the beam quality was reduced on the basis of the original cage. Pro/E software was used to establish the three-dimensional models before and after the improvement of the deep groove ball bearing engineering plastic cage. Finite element analysis was carried out on the displacement change of the cage pocket lock and the free mode of the cage before and after the improvement in ANSYS Workbench. The results show that the maximum permissible rotation speed of the improved cage is 15 000 r/min. Under the condition of 10 000 r/min. The frequency of in-plane bending vibration of the improved cage is increased by 14%~66% compared with that of the improved cage, and the frequency of radial warping vibration of the improved cage is increased by 30%~60% compared with that of the improved cage.

关 键 词：塑料保持架 模态分析 有限元分析 

分 类 号：TH133.3[机械工程—机械制造及自动化]