一种光电转台的轴承装配分析

Analysis of Bearing Assembling of Opto-electronic Turntable

在轴承的安装方式、预紧量、预紧载荷、润滑与密封等方面分析计算的基础上,提出了一种轴承的装配方式。探讨了精密光电转台轴系结构精度,在样机的装配中运用了这种独特的轴系装配方式,将装配中难以控制的轴承预紧量转换为调节端盖的厚度,不但解决了轴系装配中的预紧问题,而且较好保证了轴系的精度。经多次装调测试证明,该装配方式能够保证轴承达到最佳的预紧效果,为转台平稳运行,实现较高的跟踪精度奠定了基础,具有较好的实际指导意义。

A bearing assembling method is proposed based on analysis calculation of bearing assembling meth- od, pre-tightening amount, pre-tightening load, lubrication and sealing. The shafting structure precision of the precise opto-electronic turntable is discussed. The unique shafting assembling method is used in prototype assembling, and the bearing pre-tightening amount is converted into the regulation of the end-cover thickness. Not only the pre-tightening problem during shafting assembling is resolved but also the shafting precision is guaranteed. Assem- bling and debugging experiments show that the assembling method can guarantee the best pre-tightening effect and provides basis for the turntable stable running and high precision tracking, which has better actual guidance.