Ball hinge support structure of large caliber reflector of space remote sensor

Abstract

A ball hinge support structure of a large caliber reflector of a space remote sensor belongs to the technical field of space remote sensors, relates to a ball hinge support structure, and aims to provide the ball hinge support structure of the large caliber reflector of the space remote sensor. The invention adopts the technical scheme that the ball hinge support structure comprises a connecting flange, an upper bearing support, a lower bearing support, a ball rod, a ball rod grooves, cylindrical pins, a taper sleeve, a reflecting mirror, a back panel, and the like, wherein an end of the ball hinge adjacent to the flange is a cylinder-shaped structure; four grooves are formed on the ball rod at intervals; a ball head at the other end of the ball rod is a spherical cavity; the rod end of the ball rod is connected with the flange through a screw and the cylindrical pin; the flange is connected with the back panel through a screw; the upper bearing support, the ball head of the ball rod and the lower bearing support are assembled together through a screw and the cylindrical pin; the upper bearing support is connected with the taper sleeve through a screw; and glue is used for gluing the taper sleeve and the reflecting mirror. By the adoption of the ball hinge support structure, the temperature stress and the assembly stress caused by different linear expansion coefficients of materials are unloaded, the vibration is reduced, and the reflecting mirror shape accuracy and the imaging quality are ensured.

Description

Technical field: [0001] The invention belongs to the technical field of space remote sensing, and relates to a support structure for a large-diameter optical mirror of a space remote sensor. Background technique: [0002] Space remote sensors are used to conduct general surveys and detailed surveys of earth and space resources, and their applications in fields such as earth observation and space exploration have important scientific and economic significance. Optical elements in space remote sensors, especially large-aperture mirrors, are the most important components in the entire optical system, and their surface shape accuracy is directly related to the imaging quality of the entire remote sensor. In the field of optics, those with a clear aperture larger than 600mm are usually called large apertures. Due to the large size and heavy weight of the mirror surface, the mirror surface is often deformed. The quality of the surface shape accuracy has a great relationship with ...

AI Technical Summary

Problems solved by technology

The advantages and disadvantages of this structure are: when the camera is subjected to vibration, the soft head can absorb energy to reduce vibration, but when the space environment where the remote sensor is located has temperature changes, due to the inconsistency of the linear expansion coefficient of the mirror and the support material Even if the soft head has a certain degree of flexibility, the mirror will still be subjected to a lot of stress, and the assembly of this structure is very difficult, and a slight deviation will cause a lot of assembly stress, which will seriously affect the mirror. The shape of the surface affects the image quality

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