On-orbit serviceable secondary mirror adjustment mechanism
A technology for adjusting mechanisms and secondary mirrors, applied in the direction of instruments, installation, optics, etc., can solve the problems of short life of the secondary mirror adjusting mechanism, and achieve the effects of simple structure, reduced time, and high feasibility
Active Publication Date: 2021-05-14
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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[0004] In view of this, it is necessary to provide an on-orbit repairable secondary mirror adjustment mechanism for the defects of the existing technology. It is used to solve the problem of short service life of the existing space telescope secondary mirror adjustment mechanism
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[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0038] see Figure 1 to Figure 6, the on-orbit repairable secondary mirror adjustment mechanism according to an embodiment of the present invention includes a mounting frame 6, a fixed platform 24, a repair pad 7, a moving platform 19, 6 transmission links, a maintenance guide rail assembly 9, a travel switch 28, and a positioning indicator light 10;
[0039] The fixed platform 24 is a hollow polygon with a certain thickness. It is fixed on the installation f...
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The invention provides an on-orbit repairable secondary mirror adjustment mechanism, which belongs to the field of space remote sensing application technology, including a mounting frame, a fixed platform, a repair pad, a moving platform, 6 transmission links, a maintenance guide rail assembly, a travel switch, and an in-position indicator Light; the fixed platform is used to carry and connect optical and transmission components; the moving platform is used to carry the secondary mirror and its accessories, one end of the transmission link is connected to the inner side of the fixed platform, and the other end is fixedly connected to the moving platform; 6 transmission links In parallel, it forms a six-degree-of-freedom parallel mechanism together with the fixed platform and the moving platform to realize the on-orbit precision adjustment of the secondary mirror; the maintenance guide rail assembly provides fast and rough positioning for astronauts on-orbit maintenance; the travel switch is used to sense whether the fixed platform is Closely fit the mating surface, when the limit switch is activated, the in-position indicator light is on. The on-orbit repairable secondary mirror adjustment mechanism of the present invention can realize on-orbit maintenance of the secondary mirror, and solves the problem of short service life of the existing space telescope secondary mirror adjustment mechanism.
Description
technical field [0001] The invention belongs to the technical field of space remote sensing applications, and in particular relates to an on-orbit repairable secondary mirror adjustment mechanism. Background technique [0002] With the continuous pursuit of imaging quality by human beings, space telescopes have made great progress in the direction of large aperture, high resolution, and large field of view. There are strict requirements on the relative position and attitude between the primary mirror and the secondary mirror in a large space telescope. Due to manufacturing errors, installation errors, launch shock vibration, gravity release, temperature changes, air pressure changes, and material property changes, the relative position and attitude between the primary and secondary mirrors will change after entering orbit, resulting in image quality degradation and image position. drift. Therefore, an adjustment link needs to be set between the primary and secondary mirror...
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IPC IPC(8): G02B7/00
CPCG02B7/004G02B7/008
Inventor 赵海波赵伟国董吉洪
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI