Supporting assembly for spatial large-aperture reflector
A mirror support and large space technology, which is applied in the aerospace field, can solve the problems of increased difficulty in the process of mirror support hole processing and support structure assembly, and achieve the effects of easy processing accuracy, reduced support difficulty, and improved utilization
Pending Publication Date: 2020-09-22
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology
However, the difficulty in processing the mirror support hole and the assembly process of the support structure is greatly increased.
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[0036] Attached below figure 1 It is described in detail in order to better illustrate the structural features and functional features of the present invention, but not to limit the protection scope of the present invention.
[0037] The large-diameter reflector support assembly of the present invention adopts a matching taper sleeve (reflector support cylinder 2), and the locking nut 3 is axially locked. The large-aperture reflector is made of silicon carbide, and the back adopts a three-point support method. The 3 installation holes of the reflector are opposite to the mirror support tube 2, the mirror installation holes and the reflector support tube 2 are pre-installed, and the mirror support tube 2 is repaired so that the three support surfaces are coplanar, and the coplanarity requirement is Within 2μm. The flatness of the mirror supporting backplane 1 and the mounting surface processed by the mirror supporting is required to be within 2 μm. During installation, the s...
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The invention discloses a supporting assembly for a spatial large-aperture reflector. The supporting assembly is composed of a reflector supporting back plate, a reflector supporting cylinder, a locking nut and a flexible gasket. A reflector is axially positioned and fixed on the reflector supporting back plate through a locking nut and a stud at the front end of the reflector supporting cylinder,and the locking nut is isolated from the reflector through a flexible gasket and used for uniformly applying locking pressure. The supporting assembly has the advantages that the reflector supportingassembly solves the problems that a reflector supporting structure in an original large-diameter off-axis three-mirror optical system is complex in design, high in assembly process requirement and the like; meanwhile, the problem that additional stress is brought to the mirror body of the reflector due to cantilever support, temperature field change and an installation detection mode of a traditional large-caliber support structure is solved. Influence of the support on the optical surface type can be effectively reduced. Due to the fact that the structure is simple and implementation is easy, the supporting assembly has practical engineering significance in achieving light weight of the space large-caliber optical load.
Description
technical field [0001] The invention belongs to the field of aerospace, and relates to a support assembly for large-diameter reflectors in space, in particular to solve the problem of stress-free support of large-diameter reflectors in the field of aerospace. This design can effectively simplify the difficulty of design and engineering realization of large-diameter reflector supports; it can effectively improve the efficiency of large-diameter reflector assembly; it can also effectively reduce the influence of large-diameter reflector assembly stress on the surface shape. It has great engineering practical application value and economic benefits. [0002] technical background [0003] With the continuous development of my country's aerospace industry, the ground resolution requirements of space optical remote sensing instruments are getting higher and higher; at the same time, the requirements for detection field of view (width) and detection sensitivity are also higher and h...
Claims
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IPC IPC(8): G02B7/183
CPCG02B7/183
Inventor 刘晓华姚劲刚郑庚
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI