φ85厘米望远镜镜筒的机械设计

THE MECHANICAL DESIGN OF THE 85 cm TELESCOPE TUBE

一架望远镜的质量不仅取决于其光学零件的质量,同时还取决于整个机械结构的优劣。因此,机械设计在望远镜制造中占有极其重要的地位。对于一架现有望远镜的改装,机械设计的难度更大。本文介绍用于改装双筒望远镜的φ85厘米反射望远镜镜筒的设计和结构分析。由于EM-1赤道装置的承载能力有限,镜筒设计中如何降低重量成为设计的关键问题。为此,镜筒的主要部件,诸如筒体和主镜室等均作过力学分析,选择其中最佳的方案。该镜筒将作为一个完整的镜筒安装在EM-1装置上。它主要用于光电测光工作,也可以作光谱工作。

The optimal performance of a telescope does not only depend on the quality of the optical parts but also on the properties of the entire structure, so the mechanical design Plays an important role in the telescope making. This peper describes the design and the structure analysis of the 85 cm telescope tube, that will be fixed on the EM-1 mounting. For the load capacity of the mounting is limited, how to reduce the weight of the telescope tube is the crucial problem in the design.For this ressor; the main parts of the tube,such. as the tube body and the main mirror cell are analysed with the finite element method and the best concept is selected.