CN110196481B - Large-caliber schlieren main mirror supporting system - Google Patents
Large-caliber schlieren main mirror supporting system Download PDFInfo
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- CN110196481B CN110196481B CN201910409202.4A CN201910409202A CN110196481B CN 110196481 B CN110196481 B CN 110196481B CN 201910409202 A CN201910409202 A CN 201910409202A CN 110196481 B CN110196481 B CN 110196481B
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- 230000007246 mechanism Effects 0.000 claims description 19
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 3
- 229910001374 Invar Inorganic materials 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000004429 Calibre Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 7
- 230000008646 thermal stress Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 230000005484 gravity Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000035882 stress Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/183—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors specially adapted for very large mirrors, e.g. for astronomy, or solar concentrators
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- Life Sciences & Earth Sciences (AREA)
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Telescopes (AREA)
Abstract
The invention discloses a large-caliber schlieren main mirror supporting system, wherein the caliber of a main mirror is in the order of 1m, and the main mirror and a main mirror supporting structure directly face wind tunnel airflow impact disturbance and larger-range temperature change. And a composite supporting mode of a three-point pull-up support and a hanging strip support phase structure is adopted. The suspender supports are guided by pulleys and are balanced on two sides, so that long-term safe and stable work is ensured. The secondary flexible support ensures the effective release of thermal stress and plays a role in buffering airflow impact in the wind tunnel environment. Under the wind tunnel airflow disturbance environment, the main mirror supporting structure can effectively ensure the safety, reliability and practicability of the main mirror, and ensure that the surface shape precision requirement of the main mirror is better than RMS <1/30 lambda. The system solves the problem of supporting the 1-meter-class-caliber optical main mirror in the wind tunnel environment, and can be widely applied to the design of supporting the large-caliber main mirror in large-scale optical equipment working under similar environmental conditions.
Description
Technical Field
The invention relates to the technical field of large-caliber main reflector support, in particular to a large-caliber schlieren main reflector support system in a wind tunnel environment.
Background
The main reflector is used as a key element in a large-caliber reflective optical system, and the surface shape precision directly determines the imaging quality of the optical system. With the increase of the aperture of the optical system, the diameter and the weight of the reflecting mirror are increased, and the main mirror is deformed under the action of the earth gravity field, so that the imaging quality of the optical system is reduced. In order to reduce the deformation of the main mirror, the position of the stress point of the supporting structure of the main mirror is determined through analysis, so that the deformation is minimized, and higher accuracy of the surface shape of the main mirror is obtained. In order to ensure the surface shape accuracy of the main mirror, prevent the main mirror from being influenced by dead weight or reduce the influence to acceptable limits, it is important to design a reasonable main mirror supporting structure. In addition, in special environments, the design of the support structure of the main reflector also ensures the long-term safe and reliable use of the main reflector and ensures that the surface shape meets the optical design requirements under the specific environmental changes.
At present, a general large-caliber main mirror supporting mode requires the use of constant temperature and constant humidity of environmental temperature, and the main mirror supporting structure is mainly used for unloading the influence of the gravity of the main mirror on the surface shape of the main mirror and basically does not bear other external forces; in some large telescope systems, the primary mirror support structure is mainly used for unloading the influence of the gravity of the primary mirror on the surface shape of the primary mirror, and also requires bearing wind load of less than 5 levels of wind power. However, the invention of a large-caliber main reflector supporting mode in a wind tunnel environment has not been reported at home and abroad, and the main reflector is subjected to strong airflow impact in a special environment, the temperature difference change is between-10 ℃ and 50 ℃, and the main reflector supporting structure is required to have the main reflector surface shape RMS <1/30 lambda and the main reflector focus to be stable and not to shake. In addition, for the gravity unloading mode of the hanging belt main mirror, if stress creep occurs for a long time, the phenomenon of hanging belt support failure occurs.
Disclosure of Invention
The invention provides a large-caliber schlieren main mirror supporting system applicable to a wind tunnel environment, which aims to solve the problem of supporting a large-caliber main mirror in the wind tunnel environment.
The technical scheme of the invention is as follows:
The utility model provides a heavy-calibre schlieren main mirror braced system which characterized in that: the device comprises a supporting frame and a radial sling supporting system arranged on the supporting frame;
The radial sling support system comprises a first pull-up system and a support system;
The first pull-up system comprises a first pull-up connecting block, a first pulley corresponding to the first pull-up connecting block, a pull rope and a balancing weight; the first pulley is fixed on the supporting frame, one end of the pull rope is connected with the first pull-up connecting block, and the other end of the pull rope is connected with the balancing weight through the first pulley; when the main mirror is supported, the first pull-up connecting block is positioned right above the outer circumferential surface of the main mirror and is in direct contact and fixation with the outer circumferential surface of the main mirror;
The supporting system comprises n supporting belts, 2n pulleys and 2n balancing weights, wherein n is more than or equal to 1, the pulleys are symmetrically fixed on the supporting frame, and when the main mirror is supported, the supporting belts are contacted with the outer circumferential surface of the lower part of the main mirror, and two ends of the supporting belts are respectively connected with the balancing weights through the pulleys.
Further, the radial sling support system further comprises a plurality of groups of second pull-up systems symmetrically arranged with respect to the first pull-up system;
The second pull-up system comprises a second pull-up connecting block, a second pulley corresponding to the second pull-up connecting block, a pull rope and a balancing weight; the second pulley is fixed on the supporting frame, one end of the pull rope is connected with the second pull-up connecting block, and the other end of the pull rope is connected with the balancing weight through the second pulley;
when the main mirror is supported, the second pull-up connecting block is in direct contact and fixed with the outer circumferential surface of the upper part of the main mirror.
Further, the radial sling support system further comprises at least two side multipoint support systems which are symmetrical with respect to the horizontal axis or the vertical axis of the main mirror, wherein the side multipoint support systems comprise positioning support blocks, rotating wheels and guide mechanisms, the guide mechanisms are fixed on the support frame, and the positioning support blocks are connected with the rotating wheels through the guide mechanisms;
When the main mirror is supported, the positioning support block is contacted with the peripheral surface of the main mirror.
Further, the second pull-up system is 2 groups, and the included angle between the second pull-up system and the first pull-up system is 45 degrees; the number of the side multipoint support systems is 4, wherein the side multipoint support systems are symmetrical with respect to the vertical axis of the main mirror in pairs, two side multipoint support systems are positioned at the upper part of the main mirror, and the other two side multipoint support systems are positioned at the lower part of the main mirror.
Further, the radial sling supporting system further comprises a first balancing weight clamping part and a second balancing weight clamping part which are arranged on the supporting frame, wherein the first balancing weight clamping part is fixed on the supporting frame and is positioned on the back surface of the main mirror; the second balancing weight clamping part is fixed on the side surface of the supporting frame;
The first pulley and the second pulley are both fixed on the cross beam of the supporting frame.
Further, the support system also comprises an axial support system fixed on the support frame, wherein the axial support system comprises a Y-shaped support bottom plate and support wanes respectively and vertically arranged on three support beams of the Y-shaped support bottom plate; two ends of the supporting rocker are provided with Y-shaped supporting frames, and three supporting arms of the Y-shaped supporting frames are respectively provided with supporting rods; the end surface with the support rod is positioned on a plane parallel to the mirror surface of the main mirror; when the main mirror is supported, the end face of the supporting rod is fixed with the back face of the main mirror;
The support rod is provided with a plurality of notches along the circumferential direction of the support rod;
The axial support system further comprises a second flexible mechanism, wherein the second flexible mechanism comprises a cross-shaped flexible shaft and a U-shaped clamping groove; the cross-shaped flexible shaft penetrates through the supporting rocker, and two ends of the cross-shaped flexible shaft are respectively fixed in two U-shaped clamping grooves with the same opening orientation; the end faces of the opening ends of the two U-shaped clamping grooves and the end faces of the bottoms opposite to the end faces of the opening ends are respectively fixed on the supporting beam.
Further, the axial supporting system further comprises a frame-shaped connecting plate, and the U-shaped clamping groove, the supporting beam and the supporting rocker are fixed through the frame-shaped connecting plate.
Further, the Y-shaped supporting bottom plate is coaxial with the main mirror.
Further, the first pull-up connecting block and the second pull-up connecting block are fixed with the main mirror through epoxy resin glue; the Y-shaped supporting bottom plate and the supporting seesaw are formed by casting, and the material is spheroidal graphite cast iron; the support rods, the cross-shaped flexible shafts and the U-shaped clamping grooves are made of invar steel.
The beneficial effects of the invention are as follows:
1. The radial sling support system adopts a double support mode of a radial sling support system and a side multipoint support system. The radial sling support system is used for unloading the gravity of the main mirror and has a main effect on ensuring the surface shape of the main mirror; the side multipoint support system is used for assisting the supporting of the hanging strip to position and protect the auxiliary function of the main mirror. The connecting block provides a part of upward pulling force for the main mirror through a steel rope (pull rope), a pulley and a balancing weight. A steel belt (supporting belt) is arranged below the main mirror, and the steel belt provides another part of upward supporting force for the main mirror through pulleys and a balancing weight. The tension is provided by a counterweight mode, so that the gravity unloading of the main mirror is ensured to be sufficient, and the influence on the surface shape of the main mirror caused by the creep of the hanging strip or the expansion and contraction of heat is avoided. The problems that the main mirror is obviously displaced along the radial direction or gravity unloading is insufficient, and the surface shape of the main mirror is reduced due to the fact that the creep of the steel belt and the expansion change caused by temperature change are effectively solved.
2. The side multipoint support distributes 4 protective positioning supports on the side of the main mirror, and when the main mirror is installed, the rotating wheel adjusts the front and back positions of the support blocks, and the side edge of the main mirror is preferably just contacted. The contact surface of the side support block and the main mirror is made of polytetrafluoroethylene material, so that the main mirror is not damaged. The side support at the 2 parts of the bottom of the main mirror can play a role in supporting the main mirror when the main mirror is assembled, adjusted and overturned; the 2 side supports at the top of the main mirror are attached to the main mirror after the main mirror is assembled and adjusted, so that the main mirror can be overturned for protection.
3. The axial supporting system adopts a WIFFLE TREE point supporting mode and comprises 18 supporting rods, 3 pairs of supporting wanes and a Y-shaped supporting bottom plate. The axial support system is used for counteracting the acting force of air flow impact on the primary mirror and the thermal stress caused by large temperature difference change, and adopts a two-stage flexible support mode. The first-stage flexible support is provided with a plurality of layers of notches on the support rod, and the second-stage flexible support adopts a cross-shaped shaft structure, so that the joint of the 3 pairs of support wanes and the Y-shaped support bottom plate has a certain space of rotation allowance along the symmetry axis. The two-stage flexible supporting mechanism can resist strong airflow impact, release thermal stress and impact stress effectively, ensure the safety and reliability of the main mirror and have excellent surface shape.
4. The invention is mainly a support system of a 1-meter-level main mirror used in a wind tunnel environment, the main mirror support structure directly faces wind tunnel airflow impact and disturbance, and under the ultra-strong airflow disturbance environment, the main mirror support structure can effectively ensure the safety, reliability and practicability of the main mirror, and ensure that the surface shape precision requirement of the main mirror is superior to RMS <1/30 lambda.
5. The system adopts a composite supporting mode of a three-point pull-up support and a hanging strip support phase structure. The suspender supports are guided by pulleys and are balanced on two sides, so that long-term safe and stable work is ensured. The secondary flexible support ensures the effective release of thermal stress and plays a role in buffering airflow impact in the wind tunnel environment.
Drawings
FIG. 1 is a schematic diagram of a primary mirror radial support system;
FIG. 2 is a schematic diagram of a primary mirror axial support system;
FIG. 3 is a first stage compliance mechanism in an axial support system;
FIG. 4a is a schematic illustration of a second stage flexible support fit in an axial support system;
FIG. 4b is a schematic view of a cross-shaped flexible shaft;
FIG. 4c is a schematic diagram illustrating the mating relationship between the second stage flexible support and the support rocker;
FIG. 4d is a schematic diagram showing the second stage flexible support and the mating relationship of the support rocker and the support beam;
FIG. 5 is a schematic front view of the support system supporting the primary mirror;
FIG. 6 is a schematic rear view of the support system supporting the primary mirror;
The reference numerals in the drawings are: the device comprises a 1-supporting frame, a 11-first pull-up connecting block, a 12-first pulley, a 13-stay rope, a 14-balancing weight, a 15-second pull-up connecting block, a 16-second pulley, a 17-first balancing weight clamping part, a 18-second balancing weight clamping part, a 21-supporting belt, a 22-pulley, a 31-positioning supporting block, a 32-rotating wheel, a 33-guiding mechanism, a 41-Y-shaped supporting bottom plate, a 411-supporting beam, a 42-supporting rocker, a 421-cross-shaped flexible shaft, a 423-U-shaped clamping groove, a 43-Y-shaped supporting frame, a 431-supporting arm, a 44-supporting rod, a 441-notch, a 442-frame-shaped connecting plate and a 2-main mirror.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples of implementation.
As can be seen from fig. 1 and 5, the radial sling support system of the large caliber schlieren main mirror support system of the present embodiment mainly includes a first pull-up system, two second pull-up systems, a support system, two sets of side multipoint support systems;
the first pull-up system comprises a first pull-up connecting block 11, a first pulley 12 corresponding to the first pull-up connecting block 11, a pull rope 13 and a balancing weight 14; the first pulley 12 is fixed on the crossbeam of the support frame 1, one end of the stay 13 is connected with the first pull-up connecting block 11, and the other end is connected with the balancing weight 14 through the first pulley 12.
The two second pull-up systems are symmetrical about the first pull-up system, and each second pull-up system comprises a second pull-up connecting block 15, a second pulley 16 corresponding to the second pull-up connecting block 15, a pull rope 13 and a balancing weight 14; the second pulley 16 is fixed on the crossbeam of the support frame 1, one end of the pull rope 13 is connected with the second pull-up connecting block 15, and the other end is connected with the balancing weight 14 through the second pulley 16. The pull cord 13 in this embodiment is a steel cord.
The pull-up system further comprises a first balancing weight clamping part 17 and a second balancing weight clamping part 18 which are arranged on the supporting frame, wherein the first balancing weight clamping part 17 is fixed on the supporting frame 1 and is positioned on the back surface of the main mirror 2; the second weight clamping portion 18 is fixed to a side surface of the support frame 2.
When the main mirror 2 is supported, the first pull-up connecting block 11 and the two second pull-up connecting blocks 15 are respectively positioned at 45 degrees above the main mirror 2 and above the left and right, the main mirror 2 and the three pull-up connecting blocks are tightly glued by epoxy resin glue, and the pull ropes 13 fixed on the three pull-up connecting blocks are pulled by adding the balancing weights 14, so that the main mirror 2 can be lifted.
The supporting system comprises 1 supporting belt, 2 pulleys 22 and 2 balancing weights 14, wherein the pulleys 22 are symmetrically fixed on the supporting frame 1. In this embodiment, the supporting belt is a steel belt, and when the main mirror is supported, the steel belt is located below the main mirror 2 and contacts with the outer circumferential surface of the lower part of the main mirror 2, and two ends of the steel belt are respectively connected with the balancing weight 14 through pulleys 22. The gravity of the main mirror 2 is jointly unloaded by pulling up the steel belt and the three-point pull-up connecting block. The tension is provided by a counterweight 14 fixed to the steel belt, which is fixed to the pulley, and the direction of the steel belt is switched by the pulley.
The side multipoint support system comprises a positioning support block 31, a rotating wheel 32 and a guide mechanism 33, wherein the guide mechanism 33 is fixed on the support frame 1, and the positioning support block 31 is connected with the rotating wheel 32 through the guide mechanism 33; the two groups of positioning support blocks are distributed below and above the main mirror 2, the surface layers of the lateral positioning support blocks are made of polytetrafluoroethylene materials, the front and back positions of the lateral positioning support blocks are adjusted to be just contacted with the side surfaces of the main mirror 2 by selecting the rotating wheels, and the guide mechanism 33 is arranged between the positioning support blocks 31 and the rotating wheels 32 to ensure that the rotating wheels 32 select to only provide front and back linear motion.
As can be seen from fig. 2 and 6, the axial support system of the large caliber schlieren main mirror support system of the present embodiment includes a Y-shaped support base 41 and support wanes 42 respectively vertically disposed on three support beams 411 of the Y-shaped support base; the two ends of the supporting rocker 42 are provided with Y-shaped supporting frames 43, and supporting rods 44 are respectively arranged on three supporting arms 431 of the Y-shaped supporting frames 43; the end surfaces of all the support rods 44 are positioned on a plane parallel to the mirror surface of the main mirror 2; the end surfaces of the support rods are connected in pairs along the clockwise or anticlockwise direction to form a hexagon.
When the main mirror is supported, 18 support rods are flexibly glued with the back surface of the main mirror 2. The middle parts of the 18 support rods are first-stage flexible supports, as shown in fig. 3, the first-stage flexible supports are as follows: a plurality of notches 441 parallel to each other are provided along the circumferential direction of the support bar 44.
The supporting rocker 42 is supported by the second stage of flexibility and is fixed on the Y-shaped supporting base plate at the symmetrical center position thereof. The second stage flexible support is composed of a cross flexible shaft 421 and a U-shaped clamping groove 423 as shown in FIG. 4a and FIG. 4 b. As can be seen from fig. 4c, the center of the supporting rocker 42 is provided with a through hole matched with the cross-shaped flexible shaft 421, the cross-shaped flexible shaft 421 penetrates into the through hole, the through hole is a circumcircle of the cross-shaped flexible shaft, two ends of the through hole are respectively fixed in the two U-shaped clamping grooves 423, the side surfaces of the two U-shaped clamping grooves 423 are tightly attached to the supporting rocker 42, and only one side of the cross-shaped flexible shaft 421 is rigidly connected with the U-shaped clamping grooves 423, so that a rotating space can be provided to a certain extent. The end face of the opening end and the end face of the bottom of the U-shaped clamping groove 423 are fixed on three supporting beams of the Y-shaped supporting bottom plate through bolts. As can be seen from fig. 4d, the support beam 411 is divided into two parts, which have spaces capable of accommodating the U-shaped clamping grooves 423, and the two U-shaped clamping grooves 423 are respectively located in the two spaces, and the two parts of the support beam, the support rocker 42 and the U-shaped clamping grooves 423 are fixed by the frame-shaped connection plates 442. The Y-shaped supporting beam is formed by casting and is made of spheroidal graphite cast iron. And the two-stage flexible mechanism materials are soft invar with low thermal expansion performance.
Claims (6)
1. The utility model provides a heavy-calibre schlieren main mirror braced system which characterized in that: comprises a supporting frame (1) and a radial sling supporting system arranged on the supporting frame (1);
The radial sling support system comprises a first pull-up system and a support system;
The first pull-up system comprises a first pull-up connecting block (11), a first pulley (12) corresponding to the first pull-up connecting block (11), a pull rope (13) and a balancing weight (14); the first pulley (12) is fixed on the supporting frame (1), one end of the pull rope (13) is connected with the first pull-up connecting block (11), and the other end of the pull rope is connected with the balancing weight (14) through the first pulley (12) in a rear mode; when the main mirror (2) is supported, the first pull-up connecting block (11) is positioned right above the outer circumferential surface of the main mirror (2) and is in direct contact and fixation with the outer circumferential surface of the main mirror (2);
The support system comprises n support belts (21), 2n pulleys (22) and 2n balancing weights (14), wherein n is more than or equal to 1, the pulleys (22) are symmetrically fixed on a support frame, when a main mirror is supported, the support belts (21) are in contact with the outer circumferential surface of the lower part of the main mirror (2), and two ends of the support belts (21) are respectively connected with the balancing weights (14) through the pulleys (22) in a rear mode;
The radial sling support system further comprises a plurality of groups of second pull-up systems symmetrically arranged about the first pull-up system;
the second pull-up system comprises a second pull-up connecting block (15), a second pulley (16) corresponding to the second pull-up connecting block (15), a pull rope (13) and a balancing weight (14); the second pulley (16) is fixed on the supporting frame, one end of the pull rope (13) is connected with the second pull-up connecting block (15), and the other end of the pull rope is connected with the balancing weight (14) through the second pulley (16);
When the main mirror is supported, the second pull-up connecting block (15) is in direct contact and fixed with the outer circumferential surface of the upper part of the main mirror (2);
The radial sling support system also comprises at least two side multipoint support systems which are symmetrical with respect to the horizontal axis or the vertical axis of the main mirror (2), wherein each side multipoint support system comprises a positioning support block (31), a rotating wheel (32) and a guide mechanism (33), the guide mechanism (33) is fixed on the support frame (1), and the positioning support blocks (31) are connected with the rotating wheels (32) through the guide mechanisms (33); the guide mechanism (33) ensures that the rotating wheel (32) selectively provides only front-back linear motion;
when the main mirror is supported, the positioning support block (31) is contacted with the peripheral surface of the main mirror (2);
The radial sling support system further comprises a first balancing weight clamping part (17) and a second balancing weight clamping part (18) which are arranged on the support frame, wherein the first balancing weight clamping part (17) is fixed on the support frame (1) and is positioned on the back surface of the main mirror (2); the second balancing weight clamping part (18) is fixed on the side surface of the supporting frame (1);
The first pulley (12) and the second pulley (16) are both fixed on the cross beam of the support frame (1).
2. The large caliber schlieren primary mirror support system of claim 1 wherein: the second pull-up system is 2 groups, and the included angle between the second pull-up system and the first pull-up system is 45 degrees; the number of the side multipoint support systems is 4, wherein the side multipoint support systems are symmetrical with respect to the vertical axis of the main mirror in pairs, two side multipoint support systems are positioned at the upper part of the main mirror, and the other two side multipoint support systems are positioned at the lower part of the main mirror.
3. The large caliber schlieren primary mirror support system of claim 1 wherein: the device also comprises an axial supporting system fixed on the supporting frame (1), wherein the axial supporting system comprises a Y-shaped supporting bottom plate (41) and supporting wanes (42) respectively and vertically arranged on three supporting beams (411) of the Y-shaped supporting bottom plate; two ends of the supporting rocker (42) are provided with Y-shaped supporting frames (43), and supporting rods (44) are respectively arranged on three supporting arms (431) of the Y-shaped supporting frames (43); the end surfaces of all the support rods (44) are positioned on a plane parallel to the mirror surface of the main mirror (2); when the main mirror is supported, the end face of the supporting rod (44) is fixed with the back of the main mirror;
The support rod (44) is provided with a plurality of notches (441) arranged along the circumferential direction of the support rod;
The axial support system further comprises a second flexible mechanism, wherein the second flexible mechanism comprises a cross-shaped flexible shaft (421) and a U-shaped clamping groove (423); the cross-shaped flexible shaft (421) penetrates through the supporting rocker (42), and two ends of the cross-shaped flexible shaft are respectively fixed in two U-shaped clamping grooves (423) with the same opening direction; the open end faces and the bottom end faces opposite to the open end faces of the two U-shaped clamping grooves (423) are respectively fixed on the supporting beam (411).
4. The large caliber schlieren primary mirror support system of claim 3 wherein: the axial supporting system further comprises a frame-shaped connecting plate (442), and the U-shaped clamping groove (423), the supporting beam (411) and the supporting rocker are fixed through the frame-shaped connecting plate (442).
5. The large caliber schlieren primary mirror support system of claim 4 wherein: the Y-shaped supporting base plate (41) is coaxial with the main mirror (2).
6. The large caliber schlieren primary mirror support system of claim 5 wherein: the first connecting block (11) and the second connecting block (15) are fixed with the main mirror (2) through epoxy resin glue; the Y-shaped supporting bottom plate (41) and the supporting rocker (42) are formed by casting, and are made of spheroidal graphite cast iron; the support rods (44), the cross-shaped flexible shaft (421) and the U-shaped clamping groove (423) are made of invar steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910409202.4A CN110196481B (en) | 2019-05-15 | 2019-05-15 | Large-caliber schlieren main mirror supporting system |
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| CN201910409202.4A CN110196481B (en) | 2019-05-15 | 2019-05-15 | Large-caliber schlieren main mirror supporting system |
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| CN110196481B true CN110196481B (en) | 2024-05-31 |
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| CN110196481B (en) * | 2019-05-15 | 2024-05-31 | 中国空气动力研究与发展中心超高速空气动力研究所 | Large-caliber schlieren main mirror supporting system |
| CN110989129B (en) * | 2019-12-24 | 2021-06-01 | 中国科学院长春光学精密机械与物理研究所 | Telescope primary mirror supporting mechanism |
| CN113253415B (en) * | 2021-06-01 | 2022-02-11 | 中国科学院长春光学精密机械与物理研究所 | Main mirror lateral support structure and assembling and adjusting method |
| FR3126048B1 (en) * | 2021-08-03 | 2023-06-23 | Paul Gheno | TELESCOPE |
| CN116560035B (en) * | 2023-07-12 | 2023-08-29 | 长春理工大学 | Standard plane mirror supporting mechanism for optical adjustment detection |
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| CN101702050A (en) * | 2009-11-12 | 2010-05-05 | 江苏科技大学 | 6-DOF (degree of freedom) gravity balanced operating microscope frame |
| CN204989592U (en) * | 2015-09-02 | 2016-01-20 | 孝感华中精密仪器有限公司 | Speculum device |
| CN109188648A (en) * | 2018-09-11 | 2019-01-11 | 中国科学院长春光学精密机械与物理研究所 | A kind of floating support device for the unloading of space optics load ground gravity |
| CN110196481A (en) * | 2019-05-15 | 2019-09-03 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of heavy caliber schlieren primary mirror support system |
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