CN219456610U - Off-axis reflection collimator supporting structure - Google Patents

Off-axis reflection collimator supporting structure Download PDF

Info

Publication number
CN219456610U
CN219456610U CN202320139911.7U CN202320139911U CN219456610U CN 219456610 U CN219456610 U CN 219456610U CN 202320139911 U CN202320139911 U CN 202320139911U CN 219456610 U CN219456610 U CN 219456610U
Authority
CN
China
Prior art keywords
bottom plate
plate
mirror
translational
support structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202320139911.7U
Other languages
Chinese (zh)
Inventor
张珑
张友伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Tuokun Photoelectric Technology Co ltd
Original Assignee
Suzhou Tuokun Photoelectric Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Tuokun Photoelectric Technology Co ltd filed Critical Suzhou Tuokun Photoelectric Technology Co ltd
Priority to CN202320139911.7U priority Critical patent/CN219456610U/en
Application granted granted Critical
Publication of CN219456610U publication Critical patent/CN219456610U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Abstract

The utility model relates to an off-axis reflection collimator support structure, which comprises: the support assembly comprises a mounting plate, a first bottom plate and a second bottom plate; the first bottom plate and the second bottom plate are mutually perpendicular to each other, the bottom of one end of the first bottom plate is fixedly connected with the mounting plate, the other end of the first bottom plate is provided with a sliding block, the sliding block is perpendicular to the mounting direction of the second bottom plate, and the mounting plate is provided with a guide rail; a translational support part is arranged between one end of the second bottom plate and the mounting plate, the translational support part comprises a support shaft and a translational ring, one end of the support shaft is fixedly connected with the mounting plate, the support shaft is arranged on the second bottom plate in a penetrating manner, the translational ring is sleeved on the support shaft and arranged on two sides of the second bottom plate, and the translational ring is provided with a plurality of balls along the circumferential direction; the reflecting component comprises a main mirror, a secondary mirror and a folding mirror; are respectively arranged on the first bottom plate and the second bottom plate. The distance between the primary mirror and the secondary mirror is high in high-low temperature consistency, and the light-emitting parallelism of the off-axis collimator is ensured when the high-low temperature changes.

Description

Off-axis reflection collimator supporting structure
Technical Field
The utility model relates to the technical field of off-axis collimator, in particular to an off-axis reflecting collimator supporting structure.
Background
The off-axis reflection collimator is generally composed of a main mirror, a secondary mirror and a folding mirror, wherein the main mirror, the secondary mirror and the folding mirror are packaged in a mirror chamber of the off-axis reflection collimator, the mirror chamber of the off-axis reflection collimator is connected with an optical bottom plate through screws, the distance between the main mirror and the secondary mirror and the change of the azimuth posture of the main mirror can greatly influence the light-emitting parallelism of the collimator, and in order to ensure the stability of the light-emitting parallelism of an instrument at high and low temperatures, the change of the positions and the postures of the main mirror and the secondary mirror at the high and low temperatures is required to be controlled within a minimum range.
In the prior art, the passive heat elimination structure scheme of the off-axis reflective optical machine system mainly comprises two types: selecting materials with low temperature expansion coefficient and adding necessary compensation links. The adopted low-expansion-coefficient material has higher density, heavier mass and high production cost; the necessary compensation is that a bipod connection structure is adopted between the optical base plate and the shell base plate, and the bipod connection structure can absorb a part of thermal stress, but also easily causes double-layer metal thermal effect to cause bending deformation of the optical base plate.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to overcome the defects of high manufacturing cost, complex structure and poor effect of the passive heat elimination structure of the off-axis reflective optical machine system in the prior art.
In order to solve the above technical problems, the present utility model provides an off-axis reflective collimator support structure, comprising:
a support assembly including a mounting plate, a first base plate, and a second base plate; the first bottom plate and the second bottom plate are mutually perpendicular, the bottom of one end of the first bottom plate far away from the second bottom plate is fixedly connected with the mounting plate, a sliding block is arranged at one end of the first bottom plate close to the second bottom plate, the installation directions of the sliding block and the second bottom plate are mutually perpendicular, and a guide rail matched with the sliding block is arranged on the mounting plate; a translational support part is arranged between one end of the second bottom plate far away from the first bottom plate and the mounting plate, the translational support part comprises a support shaft and a translational ring, one end of the support shaft is fixedly connected with the mounting plate, the support shaft is arranged on the second bottom plate in a penetrating manner, the translational ring is sleeved on the support shaft and arranged on two sides of the second bottom plate, and a plurality of balls are arranged on the translational ring along the circumferential direction;
the reflecting assembly comprises a main mirror, a secondary mirror and a folding mirror; the primary mirror is arranged on the first bottom plate, and the secondary mirror and the folding mirror are both arranged on the second bottom plate.
In one embodiment of the utility model, a first backing plate is arranged on one side of the translation ring, which is close to the second bottom plate, and a second backing plate is arranged on one side of the translation ring, which is far away from the second bottom plate; the first backing plate and the second backing plate are abutted with a plurality of balls.
In one embodiment of the utility model, the surface of the second base plate is provided with an annular groove cooperating with the first backing plate.
In one embodiment of the utility model, the support shaft is provided with a limit nut at one end near the second backing plate.
In one embodiment of the utility model, a disc spring is arranged between the limit nut and the second backing plate.
In one embodiment of the utility model, the second bottom plate is provided with a shaft hole matched with the supporting shaft, and the inner diameter of the shaft hole is larger than the diameter of the supporting shaft.
In one embodiment of the utility model, the sliding block is provided with a V-shaped groove, and the guide rail is provided with a taper matched with the V-shaped groove.
In one embodiment of the utility model, a reinforcing plate is provided between the first base plate and the second base plate.
In one embodiment of the present utility model, the primary mirror and the secondary mirror are both aspherical mirrors, and the fold mirror is a planar mirror.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
according to the off-axis reflection collimator supporting structure, the off-axis collimator optical base plate (the first base plate and the second base plate) is connected with the mounting plate in the modes of fixed support, translational support and guide rails, when the temperature changes, the first base plate and the guide rails can relatively move, and the second base plate and the support shafts relatively slide, so that the bending phenomenon of the optical base plate caused by a bimetal effect can be eliminated, the influence of thermal deformation of the mounting plate on the optical base plate is reduced, the advantage of small thermal expansion coefficient of invar steel or a carbon fiber plate is fully utilized, the distance between primary and secondary mirrors and the high-low temperature consistency of the gesture are high, and meanwhile, the light-emitting parallelism of the off-axis collimator can be improved by combining the secondary mirrors and the reverse compensation unit of the mounting structure of the secondary mirrors.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the support assembly of FIG. 1;
FIG. 3 is a schematic view of the translational support of FIG. 2;
FIG. 4 is a cross-sectional view of the internal structure of the translational support of FIG. 2;
FIG. 5 is a schematic view of the first and second bottom plates of FIG. 2;
FIG. 6 is a schematic diagram of the reflective assembly of FIG. 1;
description of the specification reference numerals: 1. a support assembly; 2. a reflective assembly; 11. a mounting plate; 12. a first base plate; 13. a second base plate; 14. a translational support part; 15. a reinforcing plate; 16. a slide block; 17. a guide rail; 21. a primary mirror; 22. a secondary mirror; 23. a fold mirror; 131. an annular groove; 132. a shaft hole; 141. a support shaft; 142. a translational coil; 143. a ball; 144. a first backing plate; 145. a second backing plate; 146. a limit nut; 147. a disc spring.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Referring to FIGS. 1-6, the present utility model discloses an off-axis reflective collimator support structure comprising:
a support assembly 1, the support assembly 1 comprising a mounting plate 11, a first base plate 12 and a second base plate 13; the first bottom plate 12 and the second bottom plate 13 are mutually perpendicular, the bottom of one end of the first bottom plate 12 far away from the second bottom plate 13 is fixedly connected with the mounting plate 11, one end of the first bottom plate 12 near the second bottom plate 13 is provided with a sliding block 16, the installation directions of the sliding block 16 and the second bottom plate 13 are mutually perpendicular, and the mounting plate 11 is provided with a guide rail 17 matched with the sliding block 16; a translational support part 14 is arranged between one end of the second bottom plate 13 far away from the first bottom plate 12 and the mounting plate 11, the translational support part 14 comprises a support shaft 141 and a translational ring 142, one end of the support shaft 141 is fixedly connected with the mounting plate 11, the support shaft 141 is arranged on the second bottom plate 13 in a penetrating way, the translational ring 142 is sleeved on the support shaft 141 and arranged on two sides of the second bottom plate 13, and a plurality of balls 143 are arranged on the translational ring 142 along the circumferential direction;
a reflection assembly 2, the reflection assembly 2 including a main mirror 21, a sub-mirror 22, and a fold mirror 23; the primary mirror 21 is disposed on the first base plate 12, and the secondary mirror 22 and the fold mirror 23 are both disposed on the second base plate 13.
Specifically, the whole mounting plate 11 is used as a mounting support of the whole device, the material is selected to be a material with a common expansion coefficient, the primary mirror 21 is mounted on the first bottom plate 12, the secondary mirror 22 and the fold mirror 23 are mounted on the second bottom plate 13, the first bottom plate 12 and the second bottom plate 13 are optical platforms, and as a preferred scheme of the utility model, the material of the first bottom plate 12 and the second bottom plate 13 is selected to be a material with a smaller expansion coefficient, and in the utility model, the material of the first bottom plate 12 and the second bottom plate 13 is selected to be invar steel or a carbon fiber plate, compared with the expansion coefficient of the mounting base, the expansion coefficient of the mounting base is much smaller, and the mounting base is less affected by temperature change. According to the scheme, one end of the first bottom plate 12 is fixedly connected with the mounting plate 11, the other end of the first bottom plate 12 is connected with the mounting plate 11 through the guide rail 17 and the sliding block 16, namely the first bottom plate 12 is mounted in a semi-open mode, when the temperature rises, the fixed end of the first bottom plate 12 is greatly deformed, and the other end of the first bottom plate moves on the guide rail 17 along the axial direction of the guide rail 17, so that the horizontality of the whole first bottom plate 12 is ensured not to change. Two ends of the second bottom plate 13 are connected with the first bottom plate 12 at one end and with the mounting plate 11 at the other end by adopting a translational support part 14.
Regarding the structure of the translational support portion 14, mainly, by installing a plurality of balls 143 on the translational ring 142, it is ensured that after the mounting plate 11 is greatly deformed, the mounting plate 11 drives the connected support shaft 141 to displace, the support shaft 141 drives the horizontal displacement of the plurality of balls 143 on the translational ring 142 to adjust, and the second bottom plate 13 is not greatly affected, so that both sides of the second bottom plate 13 are released, the bending of the second bottom plate 13 is not caused under the influence of temperature change, and the influence of the bending of the second bottom plate 13 on the horizontality of the secondary mirror 22 and the fold mirror 23 is avoided.
According to the utility model, the optical bottom plate (the first bottom plate 12 and the second bottom plate 13) of the off-axis collimator is connected with the mounting plate 11 in a fixed support, translational support and guide rail 17 mode, when the temperature changes, the first bottom plate 12 and the guide rail 17 can relatively move, and the second bottom plate 13 and the support shaft 141 relatively slide, so that the bending phenomenon of the optical bottom plate caused by a bimetal effect can be eliminated, the influence of thermal deformation of the mounting plate 11 on the optical bottom plate is reduced, the thermal expansion coefficient of invar steel or a carbon fiber plate is fully utilized, the high-low temperature consistency of the distance and the gesture of the primary mirror 22 is high, and the light-emitting parallelism of the off-axis collimator can be improved by combining a reverse compensation unit of the secondary mirror 22 and a mounting structure thereof.
Further, since the movement of the translational ring 142 needs to be synchronized by the plurality of balls 143, in order to avoid scattering of the balls 143, a first pad 144 is disposed on a side of the translational ring 142 close to the second bottom plate 13, and a second pad 145 is disposed on a side of the translational ring 142 far from the second bottom plate 13; the first pad 144 and the second pad 145 are in contact with the plurality of balls 143.
Further, in order to achieve the fixation of the first pad 144, the surface of the second base plate 13 is provided with an annular groove 131 that cooperates with the first pad 144.
Further, since the translational ring 142, the first pad 144 and the second pad 145 are sleeved on the supporting shaft 141, the supporting shaft 141 needs to be fixed in the axial direction, and a limit nut 146 is disposed at one end of the supporting shaft 141 near the second pad 145.
Further, a disc spring 147 is provided between the limit nut 146 and the second pad 145, and is loosened after long-term use, and the pretightening force is adjusted by compressing and extending the disc spring 147.
Further, the second bottom plate 13 is provided with a shaft hole 132 matched with the supporting shaft 141, and the inner diameter of the shaft hole 132 is larger than the diameter of the supporting shaft 141.
Specifically, the supporting shaft 141 is a part connecting the second bottom plate 13 and the mounting plate 11, and since the expansion coefficient of the second bottom plate 13 is low, the influence of temperature variation is small, and the expansion coefficient of the mounting plate 11 is high, the influence of temperature variation is large; the fundamental change is that the mounting plate 11 drives the supporting shaft 141 to move, and the shaft hole 132 of the supporting shaft 141 needs to have a certain adjustment amount. The diameter ratio of the shaft hole 132 is larger than the diameter of the support shaft 141, and the gap of the single side should be larger than the moving amount of the shaft relative to the hole due to the temperature change.
Further, a V-shaped groove is formed in the slider 16, and a taper matched with the V-shaped groove is formed in the guide rail 17.
Specifically, the setting direction of the guide rail 17 is the same as the axial direction of the first bottom plate 12, the V-shaped groove on the sliding block 16 is in taper fit with the guide rail 17, the other end of the first bottom plate 12 is fixedly connected with the mounting plate 11, the mounting plate 11 is affected by temperature change, the first bottom plate 12 is driven to horizontally move on the guide rail 17, and the first bottom plate 12 is prevented from greatly changing.
Further, in order to secure the stability of the connection of the first bottom plate 12 and the second bottom plate 13, a reinforcing plate 15 is provided between the first bottom plate 12 and the second bottom plate 13.
Further, as a preferable embodiment of the present utility model, the primary mirror 21 and the secondary mirror 22 are both aspherical mirrors, and the fold mirror 23 is a plane mirror.
In summary, the present utility model introduces an off-axis reflective collimator support structure, which realizes the connection between the optical bottom plate (the first bottom plate 12 and the second bottom plate 13) of the off-axis collimator and the mounting plate 11 by means of a fixed support, a translational support and a guide rail 17, and when the temperature changes, the first bottom plate 12 and the guide rail 17 can relatively move, and the second bottom plate 13 and the support shaft 141 relatively slide, so as to eliminate the bending phenomenon of the optical bottom plate caused by the bimetal effect, reduce the influence of the thermal deformation of the mounting plate 11 on the optical bottom plate, fully utilize the small thermal expansion coefficient of invar steel or carbon fiber plate, make the distance and the posture of the primary mirror 22 high and low temperature consistency, and simultaneously combine the secondary mirror 22 and the reverse compensation unit of the mounting structure thereof, so as to improve the light-emitting parallelism when the off-axis collimator changes at high and low temperatures.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims (9)

1. An off-axis reflective collimator support structure, comprising:
a support assembly including a mounting plate, a first base plate, and a second base plate; the first bottom plate and the second bottom plate are mutually perpendicular, the bottom of one end of the first bottom plate far away from the second bottom plate is fixedly connected with the mounting plate, a sliding block is arranged at one end of the first bottom plate close to the second bottom plate, the installation directions of the sliding block and the second bottom plate are mutually perpendicular, and a guide rail matched with the sliding block is arranged on the mounting plate; a translational support part is arranged between one end of the second bottom plate far away from the first bottom plate and the mounting plate, the translational support part comprises a support shaft and a translational ring, one end of the support shaft is fixedly connected with the mounting plate, the support shaft is arranged on the second bottom plate in a penetrating manner, the translational ring is sleeved on the support shaft and arranged on two sides of the second bottom plate, and a plurality of balls are arranged on the translational ring along the circumferential direction;
the reflecting assembly comprises a main mirror, a secondary mirror and a folding mirror; the primary mirror is arranged on the first bottom plate, and the secondary mirror and the folding mirror are both arranged on the second bottom plate.
2. The off-axis reflective collimator support structure of claim 1, wherein: a first backing plate is arranged on one side, close to the second bottom plate, of the translation ring, and a second backing plate is arranged on one side, far away from the second bottom plate, of the translation ring; the first backing plate and the second backing plate are abutted with a plurality of balls.
3. The off-axis reflective collimator support structure of claim 2, wherein: the surface of the second bottom plate is provided with an annular groove matched with the first base plate.
4. The off-axis reflective collimator support structure of claim 2, wherein: and a limit nut is arranged at one end of the support shaft, which is close to the second base plate.
5. The off-axis reflective collimator support structure of claim 4, wherein: and a disc spring is arranged between the limit nut and the second base plate.
6. The off-axis reflective collimator support structure of claim 1, wherein: the second bottom plate is provided with a shaft hole matched with the supporting shaft, and the inner diameter of the shaft hole is larger than the diameter of the supporting shaft.
7. The off-axis reflective collimator support structure of claim 1, wherein: the sliding block is provided with a V-shaped groove, and the guide rail is provided with a taper matched with the V-shaped groove.
8. The off-axis reflective collimator support structure of claim 1, wherein: a reinforcing plate is arranged between the first bottom plate and the second bottom plate.
9. The off-axis reflective collimator support structure of claim 1, wherein: the primary mirror and the secondary mirror are both aspheric mirrors, and the folding mirror is a plane reflecting mirror.
CN202320139911.7U 2023-06-20 2023-06-20 Off-axis reflection collimator supporting structure Active CN219456610U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320139911.7U CN219456610U (en) 2023-06-20 2023-06-20 Off-axis reflection collimator supporting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320139911.7U CN219456610U (en) 2023-06-20 2023-06-20 Off-axis reflection collimator supporting structure

Publications (1)

Publication Number Publication Date
CN219456610U true CN219456610U (en) 2023-08-01

Family

ID=87418200

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320139911.7U Active CN219456610U (en) 2023-06-20 2023-06-20 Off-axis reflection collimator supporting structure

Country Status (1)

Country Link
CN (1) CN219456610U (en)

Similar Documents

Publication Publication Date Title
US4268123A (en) Kinematic mount
CN205787318U (en) Reflecting mirror fixing device
CN107942622B (en) Three-degree-of-freedom precise adjustment parallel mechanism based on double flexible pairs
CN219456610U (en) Off-axis reflection collimator supporting structure
CN111399169B (en) Rigid spherical hinge type high-precision quick reflector
CN108873320A (en) A kind of two-dimensional rapid control reflector
CN109375338A (en) A kind of reflecting mirror two dimension angular adjustment device
CN111624729A (en) Fast reflector
US8730597B2 (en) Holding apparatus and optical apparatus
CN109557634B (en) Mirror assembly, collimator and use of a collimator
CN104900293A (en) Double-drive pressure roller type bending device
US9599786B2 (en) Low wavefront distortion optical mount
CN114578504A (en) Reaction force-free quick reflecting mirror based on flexible support
CN115308874A (en) Non-interference gravity unloading mechanism of large-diameter reflector
CN218675428U (en) Four-dimensional adjusting mechanism device for double-light-path center deviation measuring instrument
CN114047593A (en) Light-weight SiC primary mirror supporting mechanism of optical measuring equipment
US5822136A (en) Friction connector for optical flats in interferometers
CN113586871A (en) Two-dimensional inclination adjusting mechanism
RU180328U1 (en) TELESCOPE MIRROR MOUNTING DEVICE
CN117233920B (en) Optical lens back three-dimensional supporting device and optical equipment
CN110471159A (en) A kind of fast velocity modulation-focusing mobile platform
CN111722352A (en) High-precision focusing lens group
CN110955015A (en) Wide-temperature-adaptability collimator reflector supporting structure
CN113655590B (en) Ultra-low temperature infrared optical reflection prism flexible support structure
CN112782823B (en) Five-dimensional adjustment mechanism of high stable grating concatenation

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant