光学精密工程2012，Vol.20Issue(7)：1509-1516,8.DOI:10.3788/OPE.20122007.1509
大型地平式望远镜的方位轴系支撑结构
Azimuth shafting bearing structure in a large Alt-azimuth telescope
摘要
Abstract
An azimuth shafting bearing structure was designed for a 2 m telescope engineering project. The typical azimuth bearing structures in large Alt-azimuth telescopes were compared, and the shafting bearing scheme for integrating a high-angular contact thrust ball bearing with a radial ball bearing was put forward. The corresponding parameters of the high-angular contact thrust ball bearing were devised. Based on the Hertz contact theory and the Finite Element Method(FEM) software ANSYS, the static performance parameters within the range of 60-85?original contact angle were calculated and validated in nonlinear simulation. The 85?high-angular thrust ball bearing structure was designed with the processing technique. A prototyping bearing with a diameter of 1 500 mm was developed firstly at home and it shows good performance in a axial run-out of 0.009 mm, a radial run-out of 0. 006 mm, the maximum starting torque without load of 30 N ?m, and the load capacity more than 30 t. The design can offer a reliable guidance and advanced technique paths for developing the high precision azimuth shaftings of large telescope systems.关键词
地平式望远镜/方位轴承/支撑结构/Hertz接触理论/ANSYS接触仿真Key words
Alt-azimuth telescope/ azimuth bearing/ supporting structure/ Hertz contact theory, ANSYS contact simulation分类
机械制造引用本文复制引用
王槐,代霜,张景旭..大型地平式望远镜的方位轴系支撑结构[J].光学精密工程,2012,20(7):1509-1516,8.基金项目
中科院三期创新工程专项资金资助项目 （）
