CN103792645A - Small reflector ultrahigh power thermal stability supporting structure - Google Patents
Small reflector ultrahigh power thermal stability supporting structure Download PDFInfo
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- CN103792645A CN103792645A CN201410035533.3A CN201410035533A CN103792645A CN 103792645 A CN103792645 A CN 103792645A CN 201410035533 A CN201410035533 A CN 201410035533A CN 103792645 A CN103792645 A CN 103792645A
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Abstract
The invention provides a small reflector ultrahigh power thermal stability supporting structure, and belongs to the technical field of the aerospace technology. The supporting structure solves the problems that in the prior art, a reflector is low in intrinsic frequency and poor in external disturbance resistance, a reflection mirror surface is large in shape change, the requirement for the assembly technique level is high, interchangeability is poor and mass production is difficult to achieve. The supporting structure comprises a mirror chamber and a flexible joint, the flexible joint and the reflector are in glue joint and fixed concentrically, the flexible joint is fixed in the mirror chamber and comprises a cylindrical barrel and multiple flexible single arms which are uniformly distributed on the outer side of the cylindrical barrel in the circumference direction and each flexible single arm is a double-layer flexible hinge. Under the action of temperature loads, in the process that thermal deformation stress deformation energy of the lens barrel is transmitted to the reflector, the thermal deformation stress deformation energy is absorbed when passing a flexible unload groove of the flexible joint, uniform deformation of the reflector is guaranteed, at the moment, surface precision slightly changes, the parts are fixedly connected, the requirement for the assembly technique is not high, and the supporting structure is good in interchangeability and high in external dynamic interference resistance.
Description
Technical field
The invention belongs to field of aerospace technology, relate to a kind of supporting construction that is applied to small mirrors, be specifically related to a kind of small mirrors superelevation power thermal stability supporting construction.
Background technology
Catoptron is as the vitals of photoelectric instrument, determines the image quality of electro-optical system, require catoptron to resist extraneous dynamic disturbance ability strong, and reflecting mirror surface shape changes little.The supporting construction of catoptron, when catoptron is carried out to effective location, needs to reduce the interference of outer bound pair catoptron and the face deformation of catoptron.
Small mirrors supporting construction of the prior art mostly is perimeter support form, and catoptron is fixed to as in its custom-designed lens barrel, and periphery compresses it by jackscrew, then puts glue and fixes, and mirror axis is to fixing by trim ring.This kind of reflecting mirror support structure natural frequency is low, and the pretightning force of jackscrew directly acts on small mirrors, lacks unloading structure and cause its opposing external interference ability between catoptron and lens barrel; Owing to considering for lightweight, lens barrel conventionally selects lightweight but the large aluminum alloy materials of linear expansion coefficient is made, in large temperature levels variation range, because not mating of linear expansion coefficient causes the thermal deformation of lens barrel to be directly passed to the poor small mirrors of rigidity by jackscrew and thin adhesive layer, cause reflecting mirror surface shape to change greatly, easily cause thrashing; Do not there is offloading functions because jackscrew pretension and glue-line are fixing, so the assembly precision to catoptron is had relatively high expectations, as a rule small mismachining tolerance or rigging error all can cause obvious impact to system, so existing small mirrors supporting way requires high to assembly technology level, interchangeability is poor, is difficult to mass production.
Summary of the invention
The object of the invention is to propose a kind of small mirrors superelevation power thermal stability supporting construction, the catoptron natural frequency that solves prior art existence is low, opposing external interference ability, reflecting mirror surface shape changes greatly, require high to assembly technology level, interchangeability is poor, is difficult to the problem of mass production.
For achieving the above object, a kind of small mirrors superelevation power thermal stability supporting construction of the present invention comprises mirror cell and soft joint; Described soft joint and catoptron glued joint fixing with one heart, and soft joint is fixed on inside, described mirror cell, and described soft joint comprises cylindrical tube and multiple flexible single armed, and described multiple flexible single armed circumference uniform distributions are in described cylindrical tube outside, and each flexible single armed is Double-layer flexible hinge.
Described soft joint is fixed on inside, described mirror cell and is specially: described soft joint and described mirror cell clearance fit, the mode that footpath upwards holds out against each flexible single armed by jackscrew respectively realizes the radially fixing of soft joint and mirror cell, axially trim ring and soft joint end contact, trim ring is threaded with mirror cell, realizes the axial location of soft joint and mirror cell by trim ring relatively moving of mirror cell.
Described multiple flexible single armed is 3 or 4.
Described multiple flexible single armed is 3.
Beneficial effect of the present invention is: a kind of small mirrors superelevation power thermal stability supporting construction of the present invention realizes fixing in mirror cell of catoptron by soft joint, and soft joint is circumferentially provided with multiple flexible single armeds, and each flexible single armed forms multiple flexible compensating grooves.Described structure can realize the stable secure bond of catoptron and mirror cell, and can unload the transmission of outer bound pair catoptron power by the flexible compensating groove on flexible single armed, jackscrew pretightning force makes mirror cell be assemblied in lens barrel with larger rigidity, and reflecting mirror surface shape is not impacted, this structural natural frequencies is high, and opposing external interference ability is strong.Under temperature loading effect; there is very macrostructure distortion in lens barrel; the flexible single armed of supporting construction produces significantly bending; the thermal deformation stress deformation of lens barrel can be in catoptron transmittance process; during through flexible compensating groove, be absorbed; although flexible single armed has produced the distortion of protectiveness, the stress of weak link, much smaller than the yield limit of material, can not produce expendable yield deformation.The stress that on catoptron, the suffered lens barrel thermal deformation transmission of each point comes is not only very little, and very even, thereby has guaranteed the homogeneous deformation of catoptron, and now the variation of surface precision is very little.Therefore can in larger range of temperature, keep the stable of mirror shape; Each parts are fixedly connected with, less demanding to assembly technology, have good interchangeability.
Accompanying drawing explanation
Fig. 1 is a kind of small mirrors superelevation power thermal stability supporting construction one-piece construction schematic diagram of the present invention;
Fig. 2 is the soft joint of a kind of small mirrors superelevation power thermal stability supporting construction of the present invention and the mounting structure figure of catoptron;
Fig. 3 is the soft joint structural representation of a kind of small mirrors superelevation power thermal stability supporting construction of the present invention;
Wherein: 1, mirror cell, 2, jackscrew, 3, soft joint, 301, cylindrical tube, 302, flexible single armed, 4, trim ring, 5, catoptron.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are described further.
Referring to accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, a kind of small mirrors superelevation power thermal stability supporting construction of the present invention comprises mirror cell 1 and soft joint 3; Described soft joint 3 and catoptron 5 glued joint fixing with one heart, soft joint 3 is fixed on 1 inside, described mirror cell, described soft joint 3 comprises cylindrical tube 301 and multiple flexible single armed 302, and described multiple flexible single armed 302 circumference uniform distributions are in described cylindrical tube 301 outsides, and each flexible single armed 302 is Double-layer flexible hinge.
Described soft joint 3 is fixed on 1 inside, described mirror cell and is specially: described soft joint 3 and described mirror cell 1 clearance fit, the mode that footpath upwards holds out against each flexible single armed 302 by jackscrew 2 respectively realizes the radially fixing of soft joint 3 and mirror cell 1, axially trim ring 4 and soft joint 3 end contacts, trim ring 4 is threaded with mirror cell 1, realizes the axial location of soft joint 3 and mirror cell 1 by trim ring 4 relatively moving of mirror cell 1.
Described multiple flexible single armed 302 is 3 or 4.
Described multiple flexible single armed 302 is 3.
Be more than the specific embodiment of the present invention, but limitation of the present invention absolutely not.
Claims (4)
1. a small mirrors superelevation power thermal stability supporting construction, is characterized in that, comprises mirror cell (1) and soft joint (3); Described soft joint (3) and catoptron (5) glued joint fixing with one heart, soft joint (3) is fixed on inside, described mirror cell (1), described soft joint (3) comprises cylindrical tube (301) and multiple flexible single armed (302), described multiple flexible single armeds (302) circumference uniform distribution is in described cylindrical tube (301) outside, and each flexible single armed (302) is Double-layer flexible hinge.
2. a kind of small mirrors superelevation power thermal stability supporting construction according to claim 1, it is characterized in that, described soft joint (3) is fixed on inside, described mirror cell (1) and is specially: described soft joint (3) and described mirror cell (1) clearance fit, the mode that footpath upwards holds out against each flexible single armed (302) by jackscrew (2) respectively realizes the radially fixing of soft joint (3) and mirror cell (1), axially trim ring (4) and soft joint (3) end contact, trim ring (4) is threaded with mirror cell (1), by trim ring (4) in mirror cell relatively moving of (1) realize the axial location of soft joint (3) and mirror cell (1).
3. a kind of small mirrors superelevation power thermal stability supporting construction according to claim 1, is characterized in that, described multiple flexible single armeds (302) are 3 or 4.
4. a kind of small mirrors superelevation power thermal stability supporting construction according to claim 3, is characterized in that, described multiple flexible single armeds (302) are 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410035533.3A CN103792645B (en) | 2014-01-24 | 2014-01-24 | A kind of small mirrors superelevation power heat endurance supporting construction |
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| CN201410035533.3A CN103792645B (en) | 2014-01-24 | 2014-01-24 | A kind of small mirrors superelevation power heat endurance supporting construction |
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| CN103792645A true CN103792645A (en) | 2014-05-14 |
| CN103792645B CN103792645B (en) | 2016-11-09 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621678A (en) * | 2017-09-14 | 2018-01-23 | 中国科学院西安光学精密机械研究所 | A kind of unstressed clamping flexible apparatus for High-precision standard mirror |
| CN107703603A (en) * | 2017-09-30 | 2018-02-16 | 中国科学院长春光学精密机械与物理研究所 | A kind of flexible support structure for being applied to back of the body inspection formula rectangle speculum |
| CN108955899A (en) * | 2018-07-24 | 2018-12-07 | 中国电子科技集团公司第十研究所 | Infrared detector Dewar and detector assembly |
| CN109031585A (en) * | 2018-08-31 | 2018-12-18 | 北京空间机电研究所 | A kind of fixed device of mirror support and its flexible support |
| CN109239881A (en) * | 2018-09-28 | 2019-01-18 | 中国科学院长春光学精密机械与物理研究所 | It is used to support the flexible supporting device and Large Aperture Lenses component of Large Aperture Lenses |
| CN109343198A (en) * | 2018-11-07 | 2019-02-15 | 西安应用光学研究所 | A kind of microstress adhesive asserably method for large-diameter non-spherical reflecting mirror |
| CN109633857A (en) * | 2019-01-18 | 2019-04-16 | 长春奥普光电技术股份有限公司 | The symmetrical secondary mirror flexible installing structure of outer circle |
| CN110349923A (en) * | 2019-07-10 | 2019-10-18 | 中国科学院长春光学精密机械与物理研究所 | A kind of CMOS chip flexible support structure |
| CN111660227A (en) * | 2020-06-16 | 2020-09-15 | 南京航空航天大学 | Passive side supporting mechanism of optical mirror surface based on elastic element |
| CN112596198A (en) * | 2020-12-28 | 2021-04-02 | 中国科学院长春光学精密机械与物理研究所 | Curvature error adjusting device and method for large-diameter spliced reflector |
| CN114355553A (en) * | 2021-11-30 | 2022-04-15 | 中国科学院西安光学精密机械研究所 | Large-caliber light-weight reflector assembly, assembly and adjustment detection assembly and adjustment detection method |
| CN115407471A (en) * | 2022-11-01 | 2022-11-29 | 中国航天三江集团有限公司 | Low-stress multi-point flexible supporting structure and supporting method of large-caliber rectangular optical lens |
| CN117741904B (en) * | 2024-02-19 | 2024-04-16 | 中国科学院长春光学精密机械与物理研究所 | Bolt pre-tightening device for reflecting mirror assembly |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621678A (en) * | 2017-09-14 | 2018-01-23 | 中国科学院西安光学精密机械研究所 | A kind of unstressed clamping flexible apparatus for High-precision standard mirror |
| CN107621678B (en) * | 2017-09-14 | 2024-01-30 | 中国科学院西安光学精密机械研究所 | Stress-free clamping flexible device for high-precision standard mirror |
| CN107703603A (en) * | 2017-09-30 | 2018-02-16 | 中国科学院长春光学精密机械与物理研究所 | A kind of flexible support structure for being applied to back of the body inspection formula rectangle speculum |
| CN107703603B (en) * | 2017-09-30 | 2020-11-03 | 中国科学院长春光学精密机械与物理研究所 | Flexible supporting structure applied to back-to-back inspection type rectangular reflector |
| CN108955899A (en) * | 2018-07-24 | 2018-12-07 | 中国电子科技集团公司第十研究所 | Infrared detector Dewar and detector assembly |
| CN109031585A (en) * | 2018-08-31 | 2018-12-18 | 北京空间机电研究所 | A kind of fixed device of mirror support and its flexible support |
| CN109031585B (en) * | 2018-08-31 | 2020-11-20 | 北京空间机电研究所 | Reflector supporting and fixing device and flexible support thereof |
| CN109239881B (en) * | 2018-09-28 | 2020-05-19 | 中国科学院长春光学精密机械与物理研究所 | Flexible supporting device for supporting large-caliber lens and large-caliber lens assembly |
| CN109239881A (en) * | 2018-09-28 | 2019-01-18 | 中国科学院长春光学精密机械与物理研究所 | It is used to support the flexible supporting device and Large Aperture Lenses component of Large Aperture Lenses |
| CN109343198A (en) * | 2018-11-07 | 2019-02-15 | 西安应用光学研究所 | A kind of microstress adhesive asserably method for large-diameter non-spherical reflecting mirror |
| CN109343198B (en) * | 2018-11-07 | 2021-01-05 | 西安应用光学研究所 | Microstress bonding assembly method for large-caliber aspheric reflector |
| CN109633857A (en) * | 2019-01-18 | 2019-04-16 | 长春奥普光电技术股份有限公司 | The symmetrical secondary mirror flexible installing structure of outer circle |
| CN110349923A (en) * | 2019-07-10 | 2019-10-18 | 中国科学院长春光学精密机械与物理研究所 | A kind of CMOS chip flexible support structure |
| CN111660227A (en) * | 2020-06-16 | 2020-09-15 | 南京航空航天大学 | Passive side supporting mechanism of optical mirror surface based on elastic element |
| CN112596198A (en) * | 2020-12-28 | 2021-04-02 | 中国科学院长春光学精密机械与物理研究所 | Curvature error adjusting device and method for large-diameter spliced reflector |
| CN112596198B (en) * | 2020-12-28 | 2022-06-21 | 中国科学院长春光学精密机械与物理研究所 | Curvature error adjusting device and method for large-caliber spliced reflector |
| CN114355553A (en) * | 2021-11-30 | 2022-04-15 | 中国科学院西安光学精密机械研究所 | Large-caliber light-weight reflector assembly, assembly and adjustment detection assembly and adjustment detection method |
| CN115407471A (en) * | 2022-11-01 | 2022-11-29 | 中国航天三江集团有限公司 | Low-stress multi-point flexible supporting structure and supporting method of large-caliber rectangular optical lens |
| CN117741904B (en) * | 2024-02-19 | 2024-04-16 | 中国科学院长春光学精密机械与物理研究所 | Bolt pre-tightening device for reflecting mirror assembly |
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