A hoisting mechanism for a large-diameter primary mirror

Abstract

The invention discloses a hoisting mechanism for a large-caliber primary mirror. A Whiffle-tree structure is introduced into the hoisting mechanism of the primary mirror to avoid damage to the primary mirror caused by stress concentration caused by excessive local stress, and to ensure the safety and security of the hoisting process. reliability. The present invention utilizes two sets of positioning structures to respectively realize the radial positioning of the lifting mechanism relative to the primary mirror and the primary mirror chamber, and transfers the coaxial positioning references of the primary mirror and the primary mirror chamber through the intermediary of the lifting mechanism, so that the primary mirror can be realized It has high radial positioning accuracy in the process of loading into the main mirror chamber, which avoids blindness in the installation process. The present invention can also realize the hoisting process of primary mirrors with different calibers by adjusting the relative positions of the two groups of mechanisms, which ensures that the present invention has high applicability. The operation of the present invention is simple and reliable. By rotating the inner and outer supports, the hoisting mechanism can easily realize the installation, positioning and lifting process of the main mirror, and the protection of the main mirror is correspondingly increased.

Description

technical field [0001] The invention relates to the technical field of optical instruments, in particular to a hoisting mechanism for a large-diameter primary mirror. Background technique [0002] In the technical fields of space detection and astronomical observation, in order to improve the resolution, it is necessary to increase the aperture of the photoelectric detection equipment, resulting in a sharp increase in the size and weight of the primary mirror, and the cost is very expensive. Due to the fragility and fragility of the material of the primary mirror, its lifting, installation, handling and other operations are accompanied by great risks. If the local stress is too large in the above process, the primary mirror may be irreversibly damaged such as chipping, breaking, and fracture, which will bring a great delay to the development and service life of the entire photoelectric detection equipment and a sharp increase in cost. . Therefore, it is necessary to design...

AI Technical Summary

Problems solved by technology

In order to improve the safety of the lifting process, the rigidity of its structure is artificially increased. The result of the increase in rigidity and weight is that the operation process is difficult to achieve simple and light, which brings a lot of inconvenience to the operator.

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