CN102278045B - Multi-efficiency astronomical dome building door - Google Patents
Multi-efficiency astronomical dome building door Download PDFInfo
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- CN102278045B CN102278045B CN2011101539839A CN201110153983A CN102278045B CN 102278045 B CN102278045 B CN 102278045B CN 2011101539839 A CN2011101539839 A CN 2011101539839A CN 201110153983 A CN201110153983 A CN 201110153983A CN 102278045 B CN102278045 B CN 102278045B
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- igloo
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Abstract
The invention provides a multi-efficiency astronomical dome building door, which is disposed at an MB part of a telescope chamber, and is characterized in that, the door is formed by upper and lower sections, the upper section and the lower section are coupled via a hinge; the length of the upper section of the door equals to the distance from the hinge to the internal side of an MA bracket; two guide rails are disposed at the MB part of the telescope chamber, the lower section of the door is installed on the guide rails; the same positions of the central parts of the two guide rails are respectively provided with a folding point, directions of the two guide rails below the folding points form an outward inclining section, the length of the outward inclining section equals to or is smaller than the length of the lower section of the door; the most lower ends of the two guide rails are provided with a blocking structure; a lower turning type structure is adopted for the upper section of the door; two chains or steel wire ropes are connected on the upper section, the two chains or the steel wire ropes are driven by two motors; and a lower turning door bracket is disposed at one side of the MA part of the telescope chamber directed toward the MB part. The multi-efficiency astronomical dome building door is suitable for normally performing multi-efficiency in a narrow space, realizes several efficiencies such as improvement of seeing and reduction of stray light, and realizes various protections.
Description
Technical field
The present invention relates to a kind of observatory observation instrument dome, being specifically related to a kind of multiple-effect can astronomical igloo door.
Background technology
The effect of astronomical igloo is can protect inner astronomical instrument well when closing, and can provide the astronomical instrument good working environment when opening.
Specific national scientific development project LAMOST(now be called Guo keep respect telescope) the structure of look in the distance mirror cell and dome, different with the look in the distance structure of mirror cell and dome of tradition: its look in the distance mirror cell and dome partly are made up of with the MB that telescope primary mirror and focal plane instrument are set the MA part that arranges from mirror surface.Be provided with astronomical igloo door between MA part and the MB part, its effect is should be able to be with the one section complete closed of telescope from focal plane to the MB primary mirror when door is closed, thereby protects interior instrument, not wind-engaging, rain, snow, effect of dust.When evening, Instrument observation used, astronomical igloo door must be opened, and allowed the celestial light beta radiation that will observe enter into primary mirror MB and focus on the instrument of focal plane from the MA reflection.Therefore, the size of astronomical igloo door must could allow the light that reflects all to MB greater than the light path size.In addition, the subsidiary body of astronomical igloo door must not be in the light in light path when door is opened.The structure of LAMOST telescope igloo as shown in Figure 1.A among the figure is astronomical igloo door; B is the focal plane instrument.
For keeping telescopical works fine environment, the structure of astronomical igloo door must be considered to improve seeing and reduce two kinds of usefulness of veiling glare.
When air themperature is inhomogeneous in the telescope light path, can cause that air is inconsistent to optical index, and cause the deviation of light, and air can produce flow disturbance, cause that telescope becomes image confusion or shake, this phenomenon is the seeing problem.When astronomical igloo door is opened, from MA to the focal plane between one section ground shone heat, have thermal current night and rise and to enter light path, produce the seeing problem, the astronomical igloo door design of prior art considers to solve above each problem.
Summary of the invention
In order to satisfy the telescopical protection of specific national scientific development project LAMOST and the needs that the works fine environment is provided; the purpose of this invention is to provide the astronomical igloo door of a kind of multiple-effect energy; the effect of the astronomical igloo door of this multiple-effect energy is should be able to be with the one section complete closed of telescope from focal plane to the MB primary mirror when door is closed; thereby protection interior instrument, not wind-engaging, rain, snow, effect of dust.When evening, Instrument observation used, this door must be opened, and allowed the celestial light beta radiation that will observe enter into primary mirror MB and focus on the instrument of focal plane from the MA reflection.In addition, the present invention also will solve simultaneously and improve seeing and reduce two kinds of usefulness of veiling glare.
The scheme of finishing the foregoing invention task is, the astronomical igloo door of a kind of multiple-effect energy, the astronomical igloo door of this multiple-effect energy is arranged on the MB part of the mirror cell of looking in the distance, and it is characterized in that, this multiple-effect can be formed by upper and lower two sections by astronomical igloo door, is connect by hinge between upper and lower two sections; The length of the astronomical igloo door epimere of described multiple-effect energy equals the distance from the hinge between upper and lower two sections to MA carriage inboard; In the one side of the MB of the mirror cell of looking in the distance part towards the MA part, be provided with two guide rails, the hypomere of the astronomical igloo door of described multiple-effect energy is installed on these two guide rails; Respectively be provided with a break on the same position at the middle part of two guide rails, the trend of two guide rails that this break is following, be close to the MB part of the mirror cell of looking in the distance, constitute (when seeing this section separately) outward-dipping section with this, this length of outward-dipping section equals the length less than the astronomical igloo student section of described multiple-effect energy; Two guide rails be provided with barrier structure bottom; The epimere of the astronomical igloo door of described multiple-effect energy adopts the lower turning type structure: described multiple-effect can be connected with two chains or wire rope on the epimere of astronomical igloo door, and these two chains or wire rope are by two motor-driven; In the one side of the MA of the mirror cell of looking in the distance part towards the MB part, be provided with the fold-down door carriage.
In the time of need opening the door, two chains of two driven by motor or wire rope can the astronomical igloo student fall described multiple-effect, whole multiple-effect is can astronomical igloo door outward-dipping when dropping to outward-dipping section of guide rail, when continuing to drop to the precalculated position, whole multiple-effect can be stoped by guide rail barrier structure bottom by astronomical igloo door, stops to descend; Two chains of two driven by motor or wire rope with multiple-effect can astronomical igloo door epimere be put into the down turning shape attitude, epimere that can astronomical igloo door up to this multiple-effect is placed on the fold-down door carriage.Need at closing time, two chains of two driven by motor or wire rope are pulled up to nearly plumbness with the epimere of the astronomical igloo door of multiple-effect energy, continue lifting, and whole multiple-effect can rise along guide rail by astronomical igloo door, and up to position, the top, door is closed.
The present invention has following prioritization scheme:
1, described multiple-effect can adopt the good aluminium extruded sections of heat conduction to do skeleton by astronomical igloo door, and aluminium sheet is covered on inside and outside two sides, fills fire-retardant thermal insulation expanded material in the middle of the inner and outer plates;
2, the described astronomical igloo door of multiple-effect energy one side outwardly strong reflection white plastic-blasting, inner face spray black lusterless paint;
3, the both sides of the astronomical igloo door of described multiple-effect energy, chosen lifting chain ring bearing according to calculation optimization, because it is that lifting force on the chain is excessive that improper meeting is chosen in this position, when the Heave Here is moved to the door top, chain can be too little with the chain angle when opening for door, causes required lifting force increase, and the Heave Here is when moving down, again can be because reducing to rotating the arm of force, and required power increases.Be 2.58 meters away from door top be through optimizing the Heave Here.
4, the open and close of the astronomical igloo door of described multiple-effect energy are to be realized by the chain drive system that variable-frequency motor drives by two covers; The frequency converter of two cover variable-frequency motors is controlled by PLC;
5, described multiple-effect can astronomical igloo door be opened, when the epimere of door is put into the down turning shape attitude by the fold-down door carriage on the MA part of last opposite, is to translate into horizontal plane downward 25 °;
6, for preventing when the bracket, and during unexpected chain releasing, carriage was produced large impact, damaged the MA structure, increased special buffer structure especially: described multiple-effect can astronomical igloo door the outside of epimere, be provided with the snubber of being formed by cylinder.
7, on the astronomical igloo door of described multiple-effect energy and on the body of wall of MB part, be provided with the catching device slotting ring; Be provided with the catching device that can insert two slotting rings simultaneously.There is catching device to insert after door is shut, plays the anti-fall effect of insurance.Powered-down can not open the door because of out of control automatically yet.
In more detail: multiple-effect of the present invention can astronomical igloo door aim at specific national scientific development project LAMOST(now be called Guo keep respect telescope) development.Its effect be when door should be able to be with the one section complete closed of telescope from focal plane to the MB primary mirror when closing, thereby protection interior instrument, not wind-engaging, rain, snow, effect of dust.When evening, Instrument observation used, this door must be opened, and allowed the celestial light beta radiation that will observe enter into primary mirror MB and focus on the instrument of focal plane from the MA reflection.Therefore, the size of door must could allow the light that reflects all to MB greater than the light path size.In addition, this subsidiary body must no longer be in the light in the light path when door is opened.
For keeping telescopical works fine environment, considered to improve seeing and reduced two kinds of usefulness of veiling glare during this development.
But when air themperature is inhomogeneous in the telescope light path, can causes that air is inconsistent to optical index, and cause the deviation of light, and air can produce flow disturbance, cause that telescope becomes image confusion or shake, this phenomenon is the seeing problem.
For preventing door when opening, from MA to the focal plane between one section ground shone heat, have thermal current night and rise and enter light path, produce the seeing problem, special this door is designed to down turn over, cover MA to this section of focal plane ground, block the rising thermal current.
When turning over design under adopting, focal plane is to the height dimension of the size between the MA of opposite less than door, and this should be converted into less size.
This uses the heat conduction preferred metal and makes.For preventing from daytime from absorbing the heat of sun photograph, cause that internal temperature is inhomogeneous, it simultaneously should be the white of strong reflection outwardly.Another side should be unglazed black for reducing veiling glare.
The present invention adopts the door that descends with the upset combination, is adapted at narrow space and normally brings into play the multiple-effect energy.Realize improving seeing simultaneously and reduced several usefulness of veiling glare.Frequency control motor requires the adjustment of realization speed according to door diverse location in switch, and realizes various protections.The whole service process is counted sprocket, with the fast variation at a slow speed of assurance different phase, and the motor synchronous operation of realization both sides chain drive-belt.The electric protection function of switch board, and the snubber of forming with cylinder carries out mechanical protection.
Description of drawings
Fig. 1 is LAMOST telescope igloo structural representation;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the lateral view of Fig. 2.
The specific embodiment
Embodiment 1, the astronomical igloo door of multiple-effect energy, with reference to Fig. 2, shown in Figure 3, Ben Men is even air themperature, the astronomical igloo door 1 of multiple-effect energy, and good aluminium extruded sections is done skeleton all to adopt heat conduction, aluminium sheet is covered on inside and outside two sides, the strong reflection white plastic-blasting of one side outwardly, inner face spray black lusterless paint is filled fire-retardant thermal insulation expanded material in the middle of the inner and outer plates.Door is divided into two sections, and epimere size mid point equals to translate into fold-down door carriage 3 distances from the student.The two intersegmental hinge-coupled of using.The both sides of door, chosen lifting chain ring bearing 7 according to calculation optimization, because it is that lifting force on the chain is excessive that improper meeting is chosen in this position, when the Heave Here is moved to the door top, chain can be too little with the chain angle when opening for door, causes required lifting force increase, and the Heave Here is when moving down, again can be because reducing to rotating the arm of force, and required power increases.The open and close of door are to be realized by the chain drive system that variable-frequency motor drives by two covers.The lifting of door, all in both sides guide rail 6, carry out, when the student drops to certain location, guide rail 6 guiding doors are outward-dipping, guide rail 6 bottoms are held multiple-effect and can astronomical igloo door 1 be no longer glided, and multiple-effect can astronomical igloo door 1 top one section, begin to turning up, up to translating into horizontal plane downward 25 °, go up special fold-down door carriage 3 and finish the action of opening the door by last opposite MA.When preventing by last fold-down door carriage 3, and unexpected chain 2 produced large impact to fold-down door carriage 3 when coming off, and damaged the MA structure, increased special buffer structure 4 especially.Action at closing time is opposite, and chain 2 pull-up door epimeres make it to turn near the upright position, enter guide rail 6, upwards slides up to whole door is shut..There is catching device to insert after door is shut, plays the anti-fall effect of insurance.Powered-down can not open the door because of out of control automatically yet.5 is inspection platform among the figure; The dotted portion of 1-1 is 1 opens, down turning shape attitude.
One, action and control are introduced
This door is by two chain pullings of two driven by motor door, realizes the switch of door.Motor is driven by frequency converter, both can realize the adjustment of speed, can realize various protections again.Frequency converter is controlled by PLC, by the counter switch of photoelectric detection switch and sprocket, makes two groups of chain transmission synchronous operations, realizes the steady switch of door.
The opening process of door is: door is vertical decline earlier fast, runs to door by vertical when outward-dipping, slack-off speed; Door by vertical velocity after outward-dipping and stable, speed accelerates; Put in place when still 300mm being arranged in distance, again slack-off speed; Prevent that impact force is excessive, after slow running put in place then, the both sides motor stopped.
Under automatic running status, the closing motion of door is to start operation earlier fast, runs to door when tilting to become vertical, slack-off speed; After slow running put in place then, the both sides motor stopped.
Whole automatic running will be counted sprocket.First: be implemented in different phase, different distance soon, variation at a slow speed.Second: realize the synchronous operation of two motors.
The principle of synchronous operation: to two motor sprocket countings, this has counted with regard to correspondence the range ability of two chains respectively.If wherein Yi Bian count value than the count value of another side greater than 2, in the east the frequency converter of motor will be regulated the speed automatically by PLC control, make the counting unanimity on both sides, if error is reduced because of the adjustment of special circumstances speed, when the difference of counting surpassed 3, the both sides motor stopped automatically.
Automatically operation explanation: manual knob is threaded to automated location, presses and open the door or door close button, will carry out the action of opening the door fast or close the door, but two kinds of duties are arranged this moment.A kind of state is all to start operation under the situation in original position on both sides, and we are referred to as synchronously operation automatically.Another kind of state is at pilot process, and we are referred to as asynchronous automatic operation.
When moving automatically synchronously, the corresponding indicator lamp that opens the door or close the door is bright, and synchro light flashes, and it is bright that pin is extracted indicator lamp, with the process of opening the door or closing the door of finishing the speed adjustment and adjusting synchronously.
Frequency converter has motor heat overload, excess current protective function in the switch board; when frequency converter shields to motor; frequency converter will show malfunction; press the reset button of frequency converter and eliminate fault; when trouble light is bright on the panel simultaneously; press the fault reset button on the switch board, fault will be eliminated, and motor can restart.
Claims (8)
1. a multiple-effect can astronomical igloo door, and this multiple-effect can astronomical igloo door be arranged on the MB part of the mirror cell of looking in the distance, and it is characterized in that this multiple-effect can be formed by upper and lower two sections by astronomical igloo door, is connect by hinge between upper and lower two sections; The length of the astronomical igloo door epimere of described multiple-effect energy equals the distance from the hinge between upper and lower two sections to fold-down door carriage inboard; In the one side of the MB of the mirror cell of looking in the distance part towards the MA part, be provided with two guide rails, the hypomere of the astronomical igloo door of described multiple-effect energy is installed on these two guide rails; Respectively be provided with a break on the same position at the middle part of two guide rails, the trend of two guide rails that this break is following, be close to the MB part of the mirror cell of looking in the distance, constitute outward-dipping section with this, this length of outward-dipping section equals the length less than the astronomical igloo student section of described multiple-effect energy; Two guide rails be provided with barrier structure bottom; The epimere of the astronomical igloo door of described multiple-effect energy adopts the lower turning type structure: described multiple-effect can be connected with two chains or wire rope on the epimere of astronomical igloo door, and these two chains or wire rope are by two motor-driven; In the one side of the MA of the mirror cell of looking in the distance part towards the MB part, be provided with the fold-down door carriage.
2. the astronomical igloo door of multiple-effect energy according to claim 1 is characterized in that, described multiple-effect can adopt the good aluminium extruded sections of heat conduction do skeleton by astronomical igloo door, and aluminium sheet is covered on inside and outside two sides, the fire-retardant thermal insulation expanded material of filling in the middle of the inner and outer plates.
3. the astronomical igloo door of multiple-effect energy according to claim 1 is characterized in that, the described astronomical igloo door of multiple-effect energy one side outwardly strong reflection white plastic-blasting, inner face spray black lusterless paint.
4. the astronomical igloo door of multiple-effect energy according to claim 1 is characterized in that, the position of the lifting chain ring bearing on the both sides of the astronomical igloo door of described multiple-effect energy is 2.58 meters away from door top be.
5. the astronomical igloo door of multiple-effect energy according to claim 1 is characterized in that, the open and close of the astronomical igloo door of described multiple-effect energy are to be realized by the chain drive system that variable-frequency motor drives by two covers; The frequency converter of two cover variable-frequency motors is controlled by PLC.
6. multiple-effect according to claim 1 can astronomical igloo door, it is characterized in that, described multiple-effect can astronomical igloo door be opened, when the epimere of door is put into the down turning shape attitude by the fold-down door carriage on the MA part of last opposite, is to translate into horizontal plane downward 25 °.
7. multiple-effect according to claim 1 can astronomical igloo door, it is characterized in that, described multiple-effect can astronomical igloo door the outside of epimere, be provided with the snubber of being formed by cylinder.
8. according to the astronomical igloo door of the described multiple-effect energy of one of claim 1 ~ 7, it is characterized in that, on the astronomical igloo door of described multiple-effect energy and on the body of wall of MB part, be provided with the catching device slotting ring; Be provided with the catching device that can insert two slotting rings simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101539839A CN102278045B (en) | 2011-06-09 | 2011-06-09 | Multi-efficiency astronomical dome building door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101539839A CN102278045B (en) | 2011-06-09 | 2011-06-09 | Multi-efficiency astronomical dome building door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102278045A CN102278045A (en) | 2011-12-14 |
| CN102278045B true CN102278045B (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101539839A Expired - Fee Related CN102278045B (en) | 2011-06-09 | 2011-06-09 | Multi-efficiency astronomical dome building door |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2575210Y (en) * | 2002-10-18 | 2003-09-24 | 胡之珺 | Folding rigid awning |
| KR20040050290A (en) * | 2002-12-10 | 2004-06-16 | 한국 천문 연구원 | A dome for astronomical observation |
| JP2005325650A (en) * | 2004-05-17 | 2005-11-24 | Kokusai Kogyo Co Ltd | Astronomic observation dome |
| CN2746036Y (en) * | 2004-07-13 | 2005-12-14 | 李道友 | Hommization open type astromomy dome |
| CN101037884A (en) * | 2007-04-03 | 2007-09-19 | 中国科学院国家天文台南京天文光学技术研究所 | Servo air screen opening type astronomical dome |
| EP1957723A1 (en) * | 2005-11-10 | 2008-08-20 | Pierre Clerc | Construction kit for a temporary and/or disassemblable dwelling |
| FR2916218A1 (en) * | 2007-05-16 | 2008-11-21 | Philippe Mignon | Astronomical observation cupola for e.g. celestial vault, has male and female panels intercalated and connected by sides to form dome such that water flown on outer walls of dome, is supplied to space of cupola without penetrating in cavity |
-
2011
- 2011-06-09 CN CN2011101539839A patent/CN102278045B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2575210Y (en) * | 2002-10-18 | 2003-09-24 | 胡之珺 | Folding rigid awning |
| KR20040050290A (en) * | 2002-12-10 | 2004-06-16 | 한국 천문 연구원 | A dome for astronomical observation |
| JP2005325650A (en) * | 2004-05-17 | 2005-11-24 | Kokusai Kogyo Co Ltd | Astronomic observation dome |
| CN2746036Y (en) * | 2004-07-13 | 2005-12-14 | 李道友 | Hommization open type astromomy dome |
| EP1957723A1 (en) * | 2005-11-10 | 2008-08-20 | Pierre Clerc | Construction kit for a temporary and/or disassemblable dwelling |
| CN101037884A (en) * | 2007-04-03 | 2007-09-19 | 中国科学院国家天文台南京天文光学技术研究所 | Servo air screen opening type astronomical dome |
| FR2916218A1 (en) * | 2007-05-16 | 2008-11-21 | Philippe Mignon | Astronomical observation cupola for e.g. celestial vault, has male and female panels intercalated and connected by sides to form dome such that water flown on outer walls of dome, is supplied to space of cupola without penetrating in cavity |
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| CN102278045A (en) | 2011-12-14 |
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