CN118040313A - Radio telescope concatenation son mirror surface board compensation arrangement - Google Patents
Radio telescope concatenation son mirror surface board compensation arrangement Download PDFInfo
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- CN118040313A CN118040313A CN202410365061.1A CN202410365061A CN118040313A CN 118040313 A CN118040313 A CN 118040313A CN 202410365061 A CN202410365061 A CN 202410365061A CN 118040313 A CN118040313 A CN 118040313A
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- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000005484 gravity Effects 0.000 claims abstract description 15
- 230000005855 radiation Effects 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 208000010727 head pressing Diseases 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
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- 210000004907 gland Anatomy 0.000 description 2
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
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Abstract
The invention discloses a mirror plate compensation device for a spliced sub-mirror plate of a radio telescope, which comprises a connecting flange, a panel supporting rod, a deflection ball head, a deflection adjusting seat, a deflection adjusting rod, a deflection fixing seat, a translation adjusting rod, a translation locking screw rod and a translation locking nut. The panel support rod tops or the joint parts of panel support rods are adjusted to splice the sub-mirror plates of the radio telescope, so that the relative deformation of the unit panels is generated, and the function of adjusting the surface shape of a single panel is achieved; the deflection adjusting seat is pushed by the deflection adjusting rod, so that the panel can rotate at a space two-dimensional angle; the relative position of the translation adjusting rod and the translation locking screw rod is adjusted, so that the panel can be translated in one dimension in space; one end of the translation locking screw rod is matched with a first spherical hole in the deflection ball head, and the other end of the translation locking screw rod is fixed with a back frame mounting node, so that the gravity unloading protection and adjustment mechanism is realized.
Description
Technical Field
The invention relates to a mirror surface shape and space position adjusting device of a single panel of a reflection mirror surface of a radio telescope, belonging to the fields of radio telescopes and radio antennas.
Background
In recent years, with the continuous development of scientific fields such as radioastronomy, the development requirement of reflective surface radiotelescopes with the advantages of large caliber, high frequency, high precision and the like is increasing. In order to solve the contradiction between the high performance and the manufacturing cost of the radio telescope, the main current mirror surface of the radio telescope at home and abroad is formed by splicing a plurality of single panels. The radio telescope used in complex environment is interfered by adverse factors such as self weight, temperature field fluctuation, wind direction load, vibration and the like, so that the deformation of the mirror surface structure of the telescope, the reduction of precision and the deterioration of observation effect are inevitably caused. Meanwhile, uncertainty errors such as manufacturing and installation and principle errors of die sharing exist in the spliced sub-mirror surface plate of the radio telescope, so that the mirror surface of the telescope deviates from a theoretical design spherical surface/an aspherical surface, and the performance of the mirror surface is reduced. Conventional precision compensation methods for radio telescopes, such as moving the primary and secondary mirrors to the best matching position, are no longer applicable. The compensation method and the device for the spliced sub-mirror plate which directly restrict the mirror performance of the radio telescope become one of key technologies to be solved urgently. The high-precision radio telescope at home and abroad adopts the unit panel (comprising a combined panel and a sub-mirror panel) compensation technology of the telescope mirror surface, namely, the panel position is adjusted by adjusting the length of a displacement adjusting mechanism below the unit panel (comprising the combined panel and the sub-mirror panel), the spliced shape of the panel is further actively controlled, and the mirror surface precision of the radio telescope is improved by compensating the deformation of the mirror surface structure of the radio telescope caused by the environment and errors. The existing unit panel compensation technology mainly adopts a mode of installing an adjusting mechanism on the corner point 3 or 4 of the back of the panel, and can realize two-dimensional deflection of the unit panel in space by adjusting the adjusting mechanisms at different positions on the corner point 3 or 4 respectively, and simultaneously realize one-dimensional translation by adjusting the adjusting structure on the corner point 3 or 4.
The disadvantages of the current unit panel compensation method and device are: the unit panel adjustment range is relatively small; because the unit panel has a certain gravity direction which is not coincident with the movement direction of the adjusting mechanism, the gravity of the unit panel can have a certain influence on the adjusting mechanism, and the existing adjusting mechanism has no gravity unloading function; the existing unit panel compensation method and device do not consider the deformation condition of a single panel under the environmental factors such as gravity, temperature field and the like and manufacturing errors.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the mirror compensation device of the radio telescope, which has the advantages of larger adjusting range of the unit panel, gravity direction unloading protection adjusting mechanism and consideration of single panel surface shape adjustment.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a radio telescope concatenation son mirror surface board compensation arrangement, includes flange, panel bracing piece, deflection bulb, deflection adjusting seat, deflection adjusting lever, deflection fixing base, translation adjusting lever, translation locking screw, translation lock nut, deflection adjusting seat includes the regulation mounting panel at middle part and a plurality of regulation radiation plates that distribute along circumference, deflection fixing base includes the fixed mounting panel at middle part and a plurality of fixed radiation plates that distribute along circumference, flange's one end is fixed in the back center of radio telescope concatenation son mirror panel, deflection adjusting seat is fixed in flange's the other end through the regulation mounting panel, panel bracing piece's one end and radio telescope concatenation son mirror panel's the back is connected fixedly, the other end and regulation radiation plate threaded connection, the internally mounted of flange can be for the deflection bulb of flange deflection, the deflection fixing base is fixed in the deflection bulb through the fixed mounting panel, deflection adjusting lever's one end is connected with the regulation radiation plate through the bulb, the other end links to each other with the fixed radiation plate threaded connection, translation adjusting lever relatively slidably installs in the outside of translation locking screw through translation locking nut, the translation locking lever is used for through the relative translation locking nut on the position of a spherical joint locking screw.
Further, the panel support rods are used in pairs, the tail end of the adjusting radiation plate is provided with a cross rod perpendicular to the adjusting radiation plate, the two ends of the cross rod are respectively provided with 1 panel support rod, and the panel support rods are in threaded connection with the cross rod.
Further, the end part of the panel supporting rod is provided with a mounting block, and the panel supporting rod is fixedly connected with the back surface of the spliced sub-mirror panel of the radio telescope through the mounting block.
Further, the deflection adjusting rods and the panel supporting rods are arranged at intervals.
Further, the deflection ball head comprises a ball head end and a fixing seat connecting end, the ball head end is arranged in a second spherical hole in the connecting flange and is pressed by a ball head pressing cover, the ball head pressing cover is used for controlling a gap between the connecting flange and the deflection ball head, and a fixing mounting plate of the deflection fixing seat is fixedly connected with the fixing seat connecting end.
Furthermore, the end part of the translation locking screw rod is connected with a telescope back frame installation node to play a role of a gravity unloading protection and adjustment mechanism.
Further, the joint sub-mirror plates of the radio telescope at the joint of the panel support rod tops or the panel support rods are adjusted to generate the relative deformation of the unit panels, so that the function of adjusting the surface shape of a single panel is achieved; the deflection adjusting seat is pushed by the deflection adjusting rod, so that the panel can rotate at a space two-dimensional angle; the relative position of the translation adjusting rod and the translation locking screw rod is adjusted, so that the panel can be translated in one dimension in space; one end of the translation locking screw rod is matched with a first spherical hole in the deflection ball head, and the other end of the translation locking screw rod is fixed with a back frame mounting node, so that the gravity unloading protection and adjustment mechanism is realized.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a mirror compensation device of a radio telescope, which has a large adjusting range of unit panels, is provided with a gravity direction unloading protection adjusting mechanism and considers the surface shape adjustment of a single panel. The unit panel can be adjusted in three degrees of freedom of space one-dimensional translation and two-dimensional deflection, has the function of adjusting the surface shape of a single panel, and plays a role of a gravity unloading protection adjusting mechanism through the mechanism.
Drawings
FIG. 1 is an overall view of the assembly of the present invention
FIG. 2 is a schematic view of the installation of the present invention
FIG. 3 is an example of the application of the invention to a tiled telescope (front view)
FIG. 4 shows an example of the application of the invention to a tiled telescope (back view)
FIG. 5 is an example of the application of the present invention to a tiled telescope (isometric view)
In the figure: 1. translating the lock nut; 2. translating the adjusting rod; 3, deflecting an adjusting rod; 4. a panel; 5. a panel support bar; 6. a connecting flange; 7. deflecting the ball head; 8. deflecting the ball gland; 9. a deflection adjusting seat; 10. a deflection fixing seat; 11. translating the locking screw; 12. a panel compensation device.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
The adjusting device mainly comprises a panel supporting rod 5, a connecting flange 6, a deflection ball head 7, a deflection ball head gland 8, a deflection adjusting rod 3, a deflection adjusting seat 9, a deflection fixing seat 10, a translation adjusting rod 2, a translation locking screw 11, a translation locking nut 1 and the like.
The adjusting device is arranged at the back of the mirror surface unit panel of the radio telescope. The panel supporting rods 5 are provided with a plurality of pairs, one end of each panel supporting rod 5 is provided with a mounting block and is fixedly connected with the back of the panel, and the other end of each panel supporting rod is provided with threads and is connected with the deflection adjusting seat 9. The two ends of the connecting flange 6 are respectively connected with the back of the panel and the central hole of the deflection adjusting seat 9, and the inside is spherical and matched with the deflection ball head 7 so as to ensure that the connecting flange 6 and the deflection ball head 7 can deflect relatively; and the ball head pressing cover 8 is used for pressing, so that the gap between the connecting flange 6 and the deflection ball head 7, which is relatively swinging, is ensured to be smaller. The deflection fixing seat 10 is fixedly connected with the upper end of the deflection ball head 7 and is connected with the deflection adjusting seat 9 through the deflection adjusting rod 3; the spherical end of the deflection adjusting rod 3 is connected with the deflection adjusting seat 9, and the threaded end of the deflection adjusting rod 3 is connected with the deflection fixing seat 10 so as to ensure that the deflection adjusting seat 9 can perform two-dimensional angle adjustment. The outer side of the translation adjusting rod 2 is matched with the inner side of the deflection ball head 7, the translation adjusting rod can slide relatively, one-dimensional adjusting function of the panel 4 is guaranteed, the translation adjusting rod 2 is connected with the translation locking screw 11 through the translation locking nut 1, the relative position of the translation adjusting rod 2 on the translation locking screw 11 can be controlled by adjusting the rotation direction of the translation locking nut 1, the one-dimensional adjusting function is further achieved, one end of the translation locking screw 11 is matched with an inner spherical hole of the deflection ball head 7 through the ball head, and the other end of the translation locking screw 11 can be connected with a telescope back frame mounting node to play a role in protecting an adjusting mechanism through gravity unloading.
The adjusting device is arranged on the back of the unit panel. The specific adjusting method is as follows: by adjusting the movement of a plurality of panel support rods 5, the panel support rods 5 or the panels at the joint of the panel support rods 5 are utilized to generate the relative deformation of the unit panels, so that the function of adjusting the surface shape of a single panel is achieved; the deflection adjusting rod 3 is rotated to push the deflection adjusting seat 9, so that the panel can rotate at a space two-dimensional angle; the relative position of the translation adjusting rod 2 and the translation locking screw 11 is adjusted, so that the panel can be translated in one dimension in space; one end of the translation locking screw 11 is matched with a spherical hole in the deflection ball head 7, and the other end of the translation locking screw is fixed with a back frame mounting node, so that the gravity unloading protection adjusting mechanism is realized.
Application example: the invention discloses a device and a method for describing the device in detail, and designs a reflecting surface of a radio telescope with an effective caliber phi 3m, a parabolic equation of Y 2 = 3600X and a focal diameter ratio of 0.3. The reflecting surface of the radio telescope mainly comprises a panel 4 and a panel compensation device 12. The reflecting surface position splicing structure of the radio telescope adopts a block division mode of a projection hexagonal method, the radio telescope is divided into 3 circles, and the total number of sub-mirrors is 19 (1+6+12=19). The sub-mirror is externally connected into a circle with the diameter of 500mm, the sub-mirror plate 4 is of a composite sandwich structure of honeycomb and aluminum plates, and the weight of a single sub-mirror is about 0.7 kg. The back of the sub-mirror plate 4 is connected with the compensation device 12 of the invention, so that the functions of three-dimensional adjustment, monolithic shape compensation and gravity unloading of the single sub-mirror plate 4 are realized.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a radio telescope concatenation son mirror surface board compensation arrangement, its characterized in that includes flange, panel bracing piece, deflects the bulb, deflects the regulation seat, deflects regulation pole, deflects fixing base, translation regulation pole, translation locking screw, translation lock nut, deflect the regulation seat and include the regulation mounting panel at middle part and a plurality of regulation radiation plates that distribute along circumference, deflection fixing base includes the fixed mounting panel at middle part and a plurality of fixed radiation plates that distribute along circumference, flange's one end is fixed in the back center of radio telescope concatenation son mirror surface board, deflection regulation seat is fixed in flange's the other end through the regulation mounting panel, the one end of panel bracing piece is fixed with the back of radio telescope concatenation son mirror surface board, the other end and the regulation radiation plate threaded connection, the internally-matched installation of flange can be for the deflection bulb of flange deflection, the deflection fixing base is fixed in the deflection bulb through the fixed mounting panel, the one end of deflection regulation pole is connected with the regulation radiation plate threaded connection through the bulb, the other end and fixed radiation plate threaded connection, translation regulation pole can be installed in the deflection inboard with relative sliding, and install in translation locking nut outside through translation locking screw, the one end is used for the translation locking screw through the relative translation locking screw is located through the translation locking screw.
2. The device for compensating the spliced sub-mirror plate of the radio telescope according to claim 1, wherein the panel support rods are used in pairs, a cross rod perpendicular to the adjusting radiation plate is arranged at the tail end of the adjusting radiation plate, 1 panel support rod is respectively arranged at two ends of the cross rod, and the panel support rods are in threaded connection with the cross rod.
3. The device for compensating a spliced sub-mirror plate of a radio telescope according to claim 1, wherein a mounting block is arranged at an end of a panel support rod, and the panel support rod is fixedly connected with the back surface of the spliced sub-mirror plate of the radio telescope through the mounting block.
4. The apparatus of claim 1, wherein the deflection adjustment bars and panel support bars are spaced apart.
5. The telescope joint mirror plate compensation device according to claim 1, wherein the deflection bulb comprises a bulb end and a fixing base connecting end, the bulb end is mounted in a second spherical hole in the connecting flange and is pressed by a bulb pressing cover, the bulb pressing cover is used for controlling a gap of relative deflection between the connecting flange and the deflection bulb, and the fixing mounting plate of the deflection fixing base is fixedly connected with the fixing base connecting end.
6. The radio telescope joint sub-mirror plate compensation device according to claim 1, wherein the end of the translational locking screw is connected with a telescope back frame mounting node to function as a gravity unloading protection adjusting mechanism.
7. The device for compensating a spliced sub-mirror plate of a radio telescope according to claim 1, wherein the effect of adjusting the surface shape of a single panel is achieved by adjusting the spliced sub-mirror plate of the radio telescope at the joint of a plurality of panel support rods or panel support rods; the deflection adjusting seat is pushed by the deflection adjusting rod, so that the panel can rotate at a space two-dimensional angle; the relative position of the translation adjusting rod and the translation locking screw rod is adjusted, so that the panel can be translated in one dimension in space; one end of the translation locking screw rod is matched with a first spherical hole in the deflection ball head, and the other end of the translation locking screw rod is fixed with a back frame mounting node, so that the gravity unloading protection and adjustment mechanism is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410365061.1A CN118040313A (en) | 2024-03-28 | 2024-03-28 | Radio telescope concatenation son mirror surface board compensation arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410365061.1A CN118040313A (en) | 2024-03-28 | 2024-03-28 | Radio telescope concatenation son mirror surface board compensation arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118040313A true CN118040313A (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410365061.1A Pending CN118040313A (en) | 2024-03-28 | 2024-03-28 | Radio telescope concatenation son mirror surface board compensation arrangement |
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| Country | Link |
|---|---|
| CN (1) | CN118040313A (en) |
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- 2024-03-28 CN CN202410365061.1A patent/CN118040313A/en active Pending
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