CN103675882A - Outer space X-ray detector - Google Patents

Outer space X-ray detector Download PDF

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Publication number
CN103675882A
CN103675882A CN201310646104.5A CN201310646104A CN103675882A CN 103675882 A CN103675882 A CN 103675882A CN 201310646104 A CN201310646104 A CN 201310646104A CN 103675882 A CN103675882 A CN 103675882A
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CN
China
Prior art keywords
main
door
hold
spring
memorial alloy
Prior art date
Application number
CN201310646104.5A
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Chinese (zh)
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CN103675882B (en
Inventor
徐延庭
李向阳
邵飞
康旭辉
胡慧君
宫超林
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中国航天科技集团公司第五研究院第五一三研究所
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Priority to CN201310646104.5A priority Critical patent/CN103675882B/en
Publication of CN103675882A publication Critical patent/CN103675882A/en
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Abstract

The invention discloses an outer space X-ray detector. The outer space X-ray detector can be suitable for the outer space environment and is used for exploring X-rays in the outer space. According to the outer space X-ray detector, a sealing door, an opening mechanism, an air inflation decompression valve, a pointing accuracy adjusting and vibration reduction supporting column and the like are used for achieving the functions of shock resistance, door opening, sealing, alignment and the like, optical components can be protected in the ground environment and in the rocket launching process, and the sealing door can be effectively opened in the outer space environment to enable the optical components to work.

Description

A kind of space X-ray detector
Technical field
The present invention relates to space flight Detection Techniques field, be specifically related to a kind of space X-ray detector.
Background technology
X-ray detection adopts vacuum device to carry out by electronics, being processed and being obtained X ray signal after opto-electronic conversion and multiplication amplification conventionally.Vacuum device, often to air-sensitive, needs sealed environment when ground, when it is under vacuum of space environment time, also needs opening encapsulation door, allows its work.In addition, space X-ray detector need to enter space by rocket launching, and general optical device contains glass material flake structure, enbrittles, frangible, be difficult to bear the vibration that rocket launching produces.In addition, for obtaining accurate directional information, need to make optical module there is very high pointing accuracy.These have proposed many specific (special) requirements to panel detector structure.
Summary of the invention
In view of this, the invention provides a kind of space X-ray detector, can adapt to space environment, adopt the functions such as the structures such as hermatic door and opener, inflation blowdown valve, pointing accuracy adjustment and sprung shock-strut have completed antivibration, open the door, seal, aligning.
Space X-ray detector of the present invention, comprising: main body, hermatic door, hold-down mechanism, memorial alloy driven unit, motor drive component, gas filling valve, blowdown valve, sprung shock-strut, sensing regulating nail, optical module, sensing reference mirror and door top component;
Wherein, main body is cube box body of an opening, and optical module is positioned in the cavity of main body by sprung shock-strut;
Hermatic door is positioned at the openend of main body, and a side is connected with main body by door-hinge; Door-hinge offside is provided with a tongue, on the opposite face of hermatic door and main body, studs with O-ring seal, and hermatic door is pressed in main body by the compacted mechanism of door tongue;
Place, one end near hermatic door in main body is provided with a top component, hermatic door visit top component above be provided with banking pin, described door top component comprises a top, push rod, spring, bowl cover, wherein, Men Dingwei mono-projection, it is inner that push rod, spring are positioned at a top, and push rod is with side stage, push rod is threaded with Men Ding through spring axis, and the side stage of push rod is pressed on spring; Bowl cover is arranged in main body near door top, and its height is lower than door heights of roofs;
Hold-down mechanism comprises hold-down mechanism body supports, depression bar and slide block, and wherein, hold-down mechanism body supports is fixed in main body, hold-down mechanism body supports is provided with rotating shaft, rotating shaft is fixed in depression bar one end, and the other end embeds slide block bottom, and depression bar is usingd rotating shaft as fulcrum is as lever pressing door tongue;
A side at hold-down mechanism is installed memorial alloy driven unit, memorial alloy driven unit comprises memorial alloy driven unit shell, memorial alloy spring and pull bar, wherein, memorial alloy spring driven unit shell is fixed in main body, pull bar is connected with the slide block of hold-down mechanism, and memorial alloy spring is and tight extension spring form;
Opposite side mounted motor driven unit at hold-down mechanism, motor drive component comprises motor, motor drive component supportive body, is in transmission connection, driving spring and push rod, wherein, motor drive component supportive body is arranged in main body, and push rod is connected with the slide block of driving spring and hold-down mechanism;
Main body is provided with gas filling valve and blowdown valve, and gas filling valve and blowdown valve are communicated with body cavity, and both structure equidirectionals are contrary, O-ring seal, spool and spring, consist of, and spool withstands O-ring seal by spring;
Sprung shock-strut is symmetrically arranged in four jiaos of detector internal optics assembly up and down;
Sensing regulating nail is screw, is threaded in the below of sprung shock-strut, and fixes with set nut;
Optical reference mirror is arranged on one end of main body, and its sensing has represented the sensing of each optical module.
Wherein, the roughness of the binding face of main body and hermatic door is better than 0.8.
Gas filling valve and blowdown valve belong to minute-pressure open valve, and valve both sides have less pressure reduction can open valve body, and pressure reduction is 0.03-0.1bar.
Sprung shock-strut is silicon rubber or damping rubber cylinder, and the single order vibration frequency of the vibrational system that sprung shock-strut and optical module form is below 60Hz, avoids satellite natural frequency simultaneously.
Beneficial effect:
(1) set up sealed environment, adopted minute-pressure open valve, can conveniently be filled with high purity inert gas, in emission process, gas is released automatically, the gas shock risk when not producing the additonal pressure of vacuum state lower seal door and hermatic door and opening.
(2) on hermatic door, be provided with a top, when the sticky connection of O-ring seal or door-hinge stiction are when larger, give initial driving force of unlatching of hermatic door, reliably opening encapsulation door.
(3) adopt memorial alloy driven unit and motor drive component to carry out release to hold-down mechanism, both can work independently, and backup each other, also can co-operation, and the driving force providing is both sums, improves the reliability of mechanism's release.
(4) sprung shock-strut 8 adopts silicon rubber or damping rubber to support, there is elasticity and damping characteristic, for internal optics Sensitive Apparatus provides reliable antivibration environment, can make inner glass thin slice bear general rocket launching vibration condition, and shock environment more than 5000g.
(5) sensing regulating nail is set, internal optics assembly pointing accuracy can tune to 0.1 °.
(6) detector compact overall structure, mechanism structure area occupied is no more than 20%.
Accompanying drawing explanation
Fig. 1 is space X-ray detector structural drawing, (a) is front perspective view, is (b) rear perspective view, is (c) partial cutaway stereographic map.
Fig. 2 is door tongue three-dimensional plot.
Fig. 3 (a) is door top component outside drawing; Fig. 3 (b) is door top component internal view.
Fig. 4 is hold-down mechanism structural representation.
Fig. 5 is memorial alloy driven unit structural representation.
Fig. 6 is motor drive component structural representation.6(a) being outside drawing, is 6(b) internal view.
Fig. 7 is shock strut and points to regulating nail partial enlarged drawing.
Wherein, 1-main body, 2-hermatic door, 3-hold-down mechanism, 4-memorial alloy driven unit, 5-motor drive component, 6-gas filling valve, 7-blowdown valve, 8-sprung shock-strut, 9-points to regulating nail, 10-optical module, 11-points to reference mirror, 12-door top component, 13-banking pin, 14-door top, 15-bowl cover, 16-spring, 17-push rod, 18-hold-down mechanism body supports, 19-door tongue, 20-torsion spring, 21-depression bar, 22-slide block, 23-memorial alloy driven unit shell, 24-pull bar, 25-memorial alloy spring, 26-gathering sill, 27-motor, 28-motor drive component body supports, 29-is in transmission connection, 30-push rod, 31-driving spring, 32-block, 33-set nut, 34-interconnecting electrode.
Embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.
The invention provides a kind of space X-ray detector, as shown in Figure 1, comprise main body 1, hermatic door 2, hold-down mechanism 3, memorial alloy driven unit 4, motor drive component 5, gas filling valve 6, blowdown valve 7, sprung shock-strut 8, point to regulating nail 9, optical module 10, point to reference mirror 11 and door top component 12.
Wherein, main body 1 is cube box body of an opening, and optical module 10 is positioned over by sprung shock-strut 8 in the cavity of main body 1, in addition, is also provided with trough for cable laying in main body 1.Main body 1 can adopt aluminium alloy integral body to process, and screw hole, trough used in main body 1 are blind hole, deep gouge, thereby must not punch to the sealing property that affects detector in the cavity of main body 1.Wherein, optical module 10 is mainly comprised of optical device, for light signal is converted into electric signal.
Hermatic door 2 is placed in the openend of main body 1, and main body 1 is better than 0.8 with the roughness of the binding face of hermatic door 2.One side of hermatic door 2 is connected with main body 1 by door-hinge, and door-hinge is provided with torsion spring, and hermatic door 2 reverses unlatching by torsion spring.Hermatic door 2 is provided with a tongue 19 at main body 1 door-hinge offside screw, and described door tongue 19 is with protruding cube, as outstanding tongue, as shown in Figure 2.On the opposite face of hermatic door 2 and main body 1, stud with O-ring seal, hermatic door 2 is pressed in main body 1 by the compacted mechanism 3 of door tongue 19, realizes the sealing to main body 1 cavity.
One end near hermatic door 2 in main body 1 is provided with a top component 12, door top component 12 comprises a top 14, push rod 17, spring 16, bowl cover 15, wherein, door top 14 is a projection, push rod 17, spring 16 are positioned at 14 inside, top, push rod 17 is with side stage, and push rod 17 is threaded with door top 14 through spring 16 axis, and the side stage of push rod 17 is pressed on spring; Bowl cover 15 is arranged in main body 1 near door top 14, and its height is lower than door heights of roofs; On hermatic door 2, be provided with banking pin 13, when hermatic door 2 is closed under hold-down mechanism effect, door top 14 limited nails 13 are pushed down, and its inner spring 16 is in compressive state; When hold-down mechanism relief pressure, door top contained spring 16 is by push rod 17 and door top 14 jack-up under the effect of restoring force, and spring is limited by bowl cover 15 again simultaneously, must not eject, as shown in Figure 3.Door top component 12 provides the initial driving force of a unlatching when larger for the sticky connection of O-ring seal or door-hinge stiction.Hermatic door 2 can adopt aluminium alloy integral body to process, and middle part can increase cross-rib and play loss of weight optimization, improves fundamental frequency effect.
Hold-down mechanism 3 comprises hold-down mechanism body supports 18, depression bar 21 and slide block 22, as shown in Figure 4, wherein, hold-down mechanism body supports 18 is fixed in main body 1, and hold-down mechanism body supports 18 is provided with rotating shaft, and depression bar 21 one end are fixed in the rotating shaft of hold-down mechanism body supports 18, the other end embeds slide block 22 bottoms, depression bar 21 is usingd rotating shaft as fulcrum is as lever pressing door tongue 19, when slide block slides, discharges depression bar, realizes release.In rotating shaft, be provided with torsion spring 20, depression bar is upspring by torsion spring and is limited in certain angle, is not ejected.
One side of hold-down mechanism 3 is installed memorial alloy driven unit 4, memorial alloy driven unit 4 comprises memorial alloy driven unit shell 23, 2 memorial alloy springs 25 and pull bar 24, wherein, memorial alloy driven unit shell 23 is fixed in main body 1, two memorial alloy springs 25 are arranged symmetrically with in memorial alloy driven unit shell 23 inner same planes, in the middle of two memorial alloy springs 25, be provided with gathering sill 26, memorial alloy spring 25 connects by interconnecting electrode near one end of hold-down mechanism 3, interconnecting electrode middle part is provided with perforate, pull bar 24 is connected with the slide block 22 of hold-down mechanism 3 through interconnecting electrode, memorial alloy spring 25 is and tight extension spring form, ultimate principle is for making memorial alloy spring shape recover to produce the pulling force pulling back by electrical heating, pull pull bar 24 to move in gathering sill 26, and then drive the slide block 22 of hold-down mechanism 3 to slide, hold-down mechanism is carried out to release.
At the opposite side of hold-down mechanism 3, lay motor drive component 5, motor drive component 5 comprises motor, motor drive component supportive body 28, be in transmission connection 29, driving spring 31, push rod 30 and block 32.Wherein, motor drive component supportive body 28 is arranged in main body 1, be in transmission connection and 29 be connected with block 32 with motor 27, block 32 is the cylinder of an opening, block 32 is pressed in motor drive component supportive body 28 inside by driving spring 31, block 32 is provided with opening, push rod 30 one end are connected with driving spring, one end is connected through the opening of block 32 and the slide block 22 of hold-down mechanism 3, ultimate principle 29 is rotated under driving and is driven block 32 motions at motor 27 for being in transmission connection, and then release driving spring 31, driving spring 31 drives push rod 30 to push away forward, and then slide block 22 activities of drive hold-down mechanism 3, thereby hold-down mechanism 3 is carried out to release.
Memorial alloy driven unit 4 adopts the mode of " drawing ", and motor drive component 5 adopts the mode of " pushing away ", and both can work independently, and are independent of each other, and when a kind of type of drive lost efficacy, can start another kind of type of drive; Two kinds of type of drive also can start simultaneously, and the driving force providing is both sums, and the fault mode being obstructed in order to tackle mechanism's release improves the reliability of mechanism's release.
Main body 1 is provided with gas filling valve 6 and blowdown valve 7, and gas filling valve 6 and blowdown valve 7 are communicated with main body 1 cavity, comprise O-ring seal, spool and spring, and wherein, spool withstands O-ring seal by spring and realizes the sealing to main body 1 hollow cavity.Gas filling valve 6 is contrary with blowdown valve 7 structure equidirectionals, for being filled with of high purity inert gas and automatically releasing of detector emission process gas.Valve opening pressure can regulate by spring, gas filling valve 6 and blowdown valve 7 belong to minute-pressure open valve, and valve both sides have less pressure reduction can open valve body, are generally 0.03-0.1bar, can prevent that in space in detector annular seal space, overbottom pressure is excessive, cause hermatic door to open difficulty.
Sprung shock-strut 8 is silicon rubber or damping rubber cylinder, be symmetrically arranged in up and down four jiaos of detector internal optics assembly 10, vibration damping for detector internal optics assembly, as shown in Figure 7, sprung shock-strut 8 has elasticity and damping characteristic, the single order vibration frequency of the vibrational system that itself and optical module 10 form is less than 60Hz, avoids satellite natural frequency simultaneously, can obtain desirable effectiveness in vibration suppression.
Pointing to regulating nail 9 is screw, be threaded in the below of sprung shock-strut 8, and fixing with set nut 33, as shown in Figure 7, the length adjustment sprung shock-strut that can point to regulating nail 9 by control with point to regulating nail length and, and then the pointing accuracy of adjustment optical module, and the sensing of optical module 10 and the sensing of pointing to reference mirror 11 are consistent.
Optical reference mirror 11 is arranged on one end of main body 1, and its sensing has represented the sensing of each optical module, for detector, is installed on the whole calibration of pointing to of satellite sensor.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (4)

1. a space X-ray detector, it is characterized in that, comprising: main body (1), hermatic door (2), hold-down mechanism (3), memorial alloy driven unit (4), motor drive component (5), gas filling valve (6), blowdown valve (7), sprung shock-strut (8), sensing regulating nail (9), optical module (10), sensing reference mirror (11) and door top component (12);
Wherein, main body (1) is cube box body of an opening, and optical module (10) is positioned in the cavity of main body (1) by sprung shock-strut (8);
Hermatic door (2) is positioned at the openend of main body (1), and a side is connected with main body (1) by door-hinge; Door-hinge offside is provided with a tongue (19), on the opposite face of hermatic door (2) and main body (1), studs with O-ring seal, and hermatic door (2) is pressed in main body (1) by the door compacted mechanism of tongue (19) (3);
In the upper one end near hermatic door (2) of main body (1), place is provided with a top component (12), in the visit top of top component (12) of hermatic door (2), be provided with banking pin (13), described door top component (12) comprises a top (14), push rod (17), spring (16), bowl cover (15), wherein, door top (1) is a projection, push rod (17), spring (16) is positioned at (14) inside, top, push rod (17) is with side stage, push rod (17) is threaded with Men Ding (14) through spring (16) axis, the side stage of push rod (17) is pressed on spring (16), it is upper that bowl cover (15) is arranged on main body (1) near door top (14), and its height is lower than door heights of roofs,
Hold-down mechanism (3) comprises hold-down mechanism body supports (18), depression bar (21) and slide block (22), wherein, hold-down mechanism body supports (18) is fixed in main body (1), hold-down mechanism body supports (18) is provided with rotating shaft, rotating shaft is fixed in depression bar (21) one end, the other end embeds slide block (22) bottom, and depression bar (21) is usingd rotating shaft as fulcrum is as lever pressing door tongue (19);
A side at hold-down mechanism (3) is installed memorial alloy driven unit (4), memorial alloy driven unit (4) comprises memorial alloy driven unit shell (23), 2 memorial alloy springs (25) and pull bar (24), wherein, memorial alloy spring driven unit shell (23) is fixed in main body (1), two memorial alloy springs (25) are arranged symmetrically with in the inner same plane of memorial alloy driven unit shell (23), in the middle of two memorial alloy springs (25), be provided with gathering sill (26), memorial alloy spring (25) connects by interconnecting electrode (34) near one end of hold-down mechanism (3), interconnecting electrode (34) middle part is provided with perforate, pull bar (24) is connected with the slide block (22) of hold-down mechanism (3) through interconnecting electrode (34), memorial alloy spring (25) is and tight extension spring form,
Opposite side mounted motor driven unit (5) at hold-down mechanism (3), motor drive component (5) comprises motor (27), motor drive component supportive body (28), (29) are in transmission connection, driving spring (31), push rod (30) and block (32), wherein, motor drive component supportive body (28) is arranged in main body (1), be in transmission connection (29) be connected with block (32) with motor (27), block (32) is the cylinder of an opening, block (32) is pressed in motor drive component supportive body (28) inside by driving spring (31), block (32) is provided with opening, push rod (30) one end is connected with driving spring, one end is connected with the slide block (22) of driving spring (31) and hold-down mechanism (3) through the opening of block (32),
Main body (1) is provided with gas filling valve (6) and blowdown valve (7), and gas filling valve (6) and blowdown valve (7) are communicated with main body (1) cavity, and both structure equidirectionals are contrary;
Sprung shock-strut (8) is symmetrically arranged in four jiaos of detector internal optics assembly (10) up and down;
Pointing to regulating nail (9) is screw, is threaded in the below of sprung shock-strut (8), and fixing with set nut (33);
Optical reference mirror (11) is arranged on one end of main body (1), and its sensing has represented the sensing of each optical module.
2. space X-ray detector as claimed in claim 1, is characterized in that, described main body (1) is better than 0.8 with the roughness of the binding face of hermatic door (2).
3. space X-ray detector as claimed in claim 1, is characterized in that, described gas filling valve (6) and blowdown valve (7) belong to minute-pressure open valve, and valve both sides have less pressure reduction can open valve body, and pressure reduction is 0.03-0.1bar.
4. space X-ray detector as claimed in claim 1, it is characterized in that, described sprung shock-strut (8) is silicon rubber or damping rubber cylinder, and the single order vibration frequency of the vibrational system that sprung shock-strut (8) and optical module (10) form is below 60Hz, avoids satellite natural frequency simultaneously.
CN201310646104.5A 2013-12-04 2013-12-04 A kind of space X-ray detector CN103675882B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104965216A (en) * 2015-06-11 2015-10-07 山东航天电子技术研究所 Method for calibrating detection efficiency of detector based on radiation source on-orbit calibration system

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Publication number Priority date Publication date Assignee Title
CN1549934A (en) * 2001-06-06 2004-11-24 路透-斯托克斯有限公司 Flexible dynamic housing
CN201427163Y (en) * 2009-05-31 2010-03-24 隆昌山川精密焊管有限责任公司 Gas-filling and sealing device for gas-liquid shock absorber
WO2010113977A1 (en) * 2009-03-30 2010-10-07 本田技研工業株式会社 Active vibration damping support device
CN102278408A (en) * 2011-05-05 2011-12-14 江苏大学 Coaxial integrated air spring absorber with linkage and controllable rigidity and damping
US20130140460A1 (en) * 2011-12-06 2013-06-06 Canon Kabushiki Kaisha Portable radiation detection unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1549934A (en) * 2001-06-06 2004-11-24 路透-斯托克斯有限公司 Flexible dynamic housing
WO2010113977A1 (en) * 2009-03-30 2010-10-07 本田技研工業株式会社 Active vibration damping support device
CN201427163Y (en) * 2009-05-31 2010-03-24 隆昌山川精密焊管有限责任公司 Gas-filling and sealing device for gas-liquid shock absorber
CN102278408A (en) * 2011-05-05 2011-12-14 江苏大学 Coaxial integrated air spring absorber with linkage and controllable rigidity and damping
US20130140460A1 (en) * 2011-12-06 2013-06-06 Canon Kabushiki Kaisha Portable radiation detection unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104965216A (en) * 2015-06-11 2015-10-07 山东航天电子技术研究所 Method for calibrating detection efficiency of detector based on radiation source on-orbit calibration system

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