Split type space optical remote sensor focusing structure

Abstract

A split type space optical remote sensor focusing mechanism comprises at least three crossed roller units for increasing the bearing capacity of the focusing mechanism, split type sliding block connecting pieces for reducing assembly internal stress and deformation and a third-stage flexible joint for providing flexibility in the corresponding direction. The crossed roller units are uniformly distributed along the circumferential direction around the movement axis of the focusing mechanism and are connected with a fixed seat through screws; the number of the split type sliding block connectingpieces corresponds to that of the crossed roller units, and the split type sliding block connecting pieces are arranged at the positions corresponding to the sliding blocks of the crossed roller units respectively and tightly attached to the sliding blocks of the crossed roller units. The third-stage flexible joint is fixedly connected with the split type sliding block connecting pieces through screws, and the third-stage flexible joint is made of an elastic sheet. On the premise of meeting emission impact, the focusing mechanism which is as light as possible, high in precision, high in stability and good in machining and assembling manufacturability is achieved, and the focusing mechanism has a great practical significance in improving the imaging quality of a large space optical remotesensor.

Description

technical field [0001] The invention belongs to the technical field of remote sensor focusing, and in particular relates to a split-type space optical remote sensor focusing mechanism. Background technique [0002] In order to ensure the on-orbit imaging quality of the space optical remote sensor and eliminate the defocus phenomenon caused by various reasons, it is necessary to set up a focusing mechanism. In recent years, with the continuous development of space detection technology, more stringent requirements have been put forward for the focusing mechanism: large size, light weight, high precision, high rigidity and high stability. [0003] At present, there are many ways to implement the focusing mechanism, among which the more commonly used ones are driven by motors, driven by ball screws, and guided by linear guide rails, and most of them are guided by two guide rails. For conventional small-sized focusing mirrors, The focusing mechanism of this structure can meet th...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the existing technical problems, the present invention provides a split-type space optical remote sensor focusing mechanism to solve the problem that traditional technical solutions cannot achieve a large-scale focusing mechanism with excellent comprehensive performance

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