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A carbon fiber thin-walled cylindrical main support structure for a large-caliber space camera

A technology of space camera and thin-walled cylinder, which is applied in the field of space optical remote sensing, can solve the problems of difficulty in controlling the size and weight of the whole machine, difficulty in satisfying self-weight deformation and vibration response, and low specific stiffness, so as to reduce product quality and reduce product quality. Envelope, the effect of meeting the shading requirements

Active Publication Date: 2022-07-01
CHANGGUANG SATELLITE TECH CO LTD
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AI Technical Summary

Problems solved by technology

The traditional truss structure has a large outer envelope and requires an additional light-shielding structure, making it difficult to control the size and weight of the whole machine; the A-type truss rod structure has low specific stiffness and is greatly affected by the weight of the secondary mirror. Requirements such as vibration response

Method used

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  • A carbon fiber thin-walled cylindrical main support structure for a large-caliber space camera
  • A carbon fiber thin-walled cylindrical main support structure for a large-caliber space camera
  • A carbon fiber thin-walled cylindrical main support structure for a large-caliber space camera

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Embodiment Construction

[0026] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0028] like Figure 1-Figure 3 As shown, a carbon fiber thin-walled cylindrical main support structure for a large-diameter space camera includes a secondary mirror truss assembly 1 and a front barrel assembly 2. The secondary mirror truss assembly 1 includes a secondary mirror joint 3, three secondary mirror truss rods 4, Several truss rod left clamping blocks 5 and some truss rod right clamping blocks 6 are provided with secondary mirror assembly interfaces 17 on the lower surface of the secondary mirror joint 3, and three adhesive mounting surfaces are evenly arranged on the side wall of the secondary mirror joint 3, and are matched with each other. T...

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Abstract

The invention provides a carbon fiber thin-walled cylindrical main support structure for a large-caliber space camera, which includes a secondary mirror truss assembly and a front barrel assembly. The secondary mirror truss assembly includes a secondary mirror joint, three secondary mirror truss rods, and a plurality of truss rod left clamping blocks and a number of truss rod right clamps, a secondary mirror assembly interface is arranged on the lower surface of the secondary mirror joint, the front barrel assembly includes a barrel body, a longitudinal rib, a longitudinal rib upper joint and a longitudinal rib lower joint, and the upper end of the barrel body is arranged with upper flanges , the lower end of the barrel body is arranged with a lower flange; three longitudinal ribs are arranged, which are evenly arranged on the outer wall of the barrel body, and the side wall of one end of each secondary mirror truss rod is bonded to the corresponding bonding mounting surface of the side wall of the secondary mirror joint, and the other One end is connected to the top surface of the upper flanging through the left clamping block of the truss rod and the right clamping block of the truss rod. The present invention is a main support structure that takes into account both light shading and force transmission paths. The structure has a small outer envelope, high specific stiffness and light weight.

Description

technical field [0001] The invention belongs to the technical field of space optical remote sensing, and in particular relates to a carbon fiber thin-walled cylindrical main support structure of a large-caliber space camera. Background technique [0002] Large-diameter and long-focal-length coaxial optical system space cameras generally refer to cameras with a diameter of more than 1m. The secondary mirror and its supporting structure are located at the light entrance. The primary and secondary distances are large, and the installation accuracy of the secondary mirror is high. Obscuration ratio, self-weight deformation, temperature rise deformation and vibration response have strict requirements. The traditional truss structure has a large outer envelope and requires an additional shading structure, which makes it difficult to control the size and weight of the whole machine; the A-type truss-rod structure has low specific stiffness and is greatly affected by the weight of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B17/56
CPCG03B17/561
Inventor 宋训鹏张雷袁健龚小雪杨云飞霍占伟
Owner CHANGGUANG SATELLITE TECH CO LTD
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