一种用于空间星冕仪的防振动结构
By designing an anti-vibration structure on the space coronagraph and using flexible dampers and vibration isolation sleeves to absorb and attenuate vibrations, the impact of micro-vibrations on imaging quality was solved, achieving high stability and long lifespan imaging results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-17
AI Technical Summary
Space imaging camera systems are extremely sensitive to micro-vibrations, which leads to a decline in image quality. Existing technologies are unable to meet the requirements for on-orbit stability and lifespan.
The structure employs a vibration-resistant design, including flexible dampers and vibration isolation sleeves, which are fixed to the bracket with screws to form an array of vibration isolation units. This absorbs and attenuates vibration energy, reducing the transmission of vibration to optical components.
It effectively reduces the failure rate of imaging cameras, extends the lifespan of components, meets the requirements for more than 10 years of on-orbit service, and maintains stable imaging contrast.
Smart Images
Figure CN224515792U_ABST
Abstract
Claims
1. A vibration-proof structure for a spatial coronagraph, characterized in that, The device includes several vibration damping units symmetrically arranged on the upper side of the support. Each vibration damping unit includes a cylindrical flexible damper with a central hole. The support has bolt holes, and the central hole of the flexible damper is directly opposite to the bolt holes of the support. The flexible damper is fixedly connected to the support by screws passing through the central hole and the bolt holes of the support.
2. The anti-vibration structure for a spatial coronagraph according to claim 1, wherein The top surface of the flexible damper is provided with a vibration isolation sleeve, and the inner wall of the central hole of the flexible damper and the bottom surface of the flexible damper are provided with vibration isolation pads.
3. The anti-vibration structure for a spatial coronagraph according to claim 1, wherein The flexible damper has an annular groove in the middle, and the vibration source is installed on the flexible damper through the annular groove.
4. The anti-vibration structure for a spatial coronagraph according to claim 3, wherein The annular groove includes an inner annular groove and an outer annular groove. The height of the inner annular groove is less than the height of the outer annular groove, and the inner annular groove and the outer annular groove form a stepped surface.
5. The anti-vibration structure for a spatial coronagraph according to claim 1, wherein The vibration damping units are symmetrically distributed on both sides of the vibration source.
6. The anti-vibration structure for a spatial coronagraph according to claim 1, wherein The support frame is a rectangular frame structure, with a set of vibration damping units installed at each of the four corners of the support frame.
7. The vibration-damping structure for a space coronagraph according to claim 1, characterized in that, The screw includes a screw, a spring washer, and a flat washer. After the screw is inserted into the spring washer and the flat washer in sequence, the flexible damper is fixed in the bracket.