某方位转台的结构工艺性分析与装配过程参数控制  

Analysis on Structural Processability of an Azimuth Turntable and Parameter Control during Assembly

作　　者：张武[1] 屈博[1] 张满宁 付小波[1] 郝刚[1] 

机构地区：[1]西安电子工程研究所,710100

出　　处：《火控雷达技术》2015年第4期24-26,共3页Fire Control Radar Technology

摘　　要：针对某方位转台面对面排列的角接触球轴承组件和下轴承内外圈需同时定位的结构特点,结合主要承担轴向载荷的塑料导轨预留0.4mm装配间隙的要求,分析转台的结构工艺性,讨论轴承组件的预紧和预紧对基座中心载荷的卸荷作用,探讨转台的轴向载荷主要由基座和托架形成的塑料导轨承载的措施,通过实践验证了预紧量选取和预紧卸荷值计算的正确性,给出了转台轴承组件装配尺寸的控制要求,通过预紧提高了转台运转的均匀性。Aiming at structural characteristics of face- to- face arranged angular contact ball bearing assembly and inner and outer rings within a lower bearing needed to be positioned simultaneously on azimuth turntable,combining requirement of 0. 4mm assembly gap reserved for plastical guiderails used to bear axial load,structual processablity of turntable is anlyzed,pretightening of bearing assembly and down loading function of pretightening on base center load is discussed,and measures that axial load of turntable is mainly supported by plastical guiderails formed by base and bracket is probed. Connectness of selecting pretightening amount and calculating pretightening down loading value is verified by practice. And control requirement for turntable bearing assembly mounting size is given,the uniformity of turntable running is increased by pretightenting.

关 键 词：方位转台 角接触球轴承 面对面排列 预紧 静摩擦力矩 

分 类 号：TN957[电子电信—信号与信息处理]