CN109578759B - Passive vibration reduction type aspheric lens push-broom swing-broom type aviation camera - Google Patents
Passive vibration reduction type aspheric lens push-broom swing-broom type aviation camera Download PDFInfo
- Publication number
- CN109578759B CN109578759B CN201910070565.XA CN201910070565A CN109578759B CN 109578759 B CN109578759 B CN 109578759B CN 201910070565 A CN201910070565 A CN 201910070565A CN 109578759 B CN109578759 B CN 109578759B
- Authority
- CN
- China
- Prior art keywords
- shaft
- motor
- iii
- encoder
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000009467 reduction Effects 0.000 title abstract description 8
- 238000002955 isolation Methods 0.000 claims abstract description 49
- 238000003384 imaging method Methods 0.000 claims abstract description 31
- 238000005096 rolling process Methods 0.000 claims abstract description 14
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 3
- 244000007853 Sarothamnus scoparius Species 0.000 claims 1
- 230000004075 alteration Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000011835 investigation Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/073—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only leaf springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
- F16M11/121—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction constituted of several dependent joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a passive vibration reduction aspheric lens push-broom swing-broom type aviation camera, and belongs to the field of aviation photoelectric load and vibration reduction. The imaging module is fixedly connected to the heading shaft frame II, the heading shaft precise shaft system drives the imaging module to rotate, the center of the reflecting mirror penetrates through the optical axis to form 45 degrees with the image plane, the imaging module is driven to rotate by the pitching shaft precise shaft system, the pitching shaft precise shaft system and the heading shaft compact shaft system are respectively and integrally fixedly connected to the rolling frame I, and the rolling shaft precise shaft system drives the imaging module to do rolling motion. The present invention is directed to a primary vibration source: the driving motor and the carrier adopt the vibration isolation gasket to carry out vibration isolation, thereby reducing the adverse effect of vibration on the imaging quality of the aviation camera and greatly improving the working performance of the device; compared with the similar aspherical mirror, the spherical aberration and flare are eliminated, and the image surface bending and aberration distortion correcting capability is better; meanwhile, the correcting effect of the aspherical mirror is equivalent to that of a plurality of spherical mirrors, so that the number of spherical mirrors is reduced, and the aim of light weight can be achieved.
Description
Technical Field
The invention relates to the field of aviation photoelectric load and vibration reduction, in particular to an aspheric lens push-broom and swing-broom type aviation camera capable of performing passive vibration reduction.
Background
The aviation camera is a high-precision optical shooting instrument, usually takes an airplane as a carrier, can collect various information and express the information in a high-definition photo form, and obtains visual data results after being processed by a computer. In the aspect of information collection, the aerial camera has the advantages of high accuracy, good timeliness, strong purpose, high information acquisition speed and convenience, and the defects of earth surface investigation due to the curvature influence of the earth and shielding of the obstacle on the target can be ignored, so that the danger is greatly reduced in military investigation; and also makes up for the deficiencies of the aerospace camera in terms of specific image details and timeliness. The aviation camera plays an important role in various fields such as geological military investigation, resource survey, disaster early warning, agricultural investigation, urban planning and the like.
Because the working environment of the aviation camera is complex, factors such as distortion of the lens and the like in operation, such as geometry, force, heat, vibration and the like, can influence the imaging quality. And as the focal length of the aerial camera increases, the imaging resolution of the optical system becomes higher and higher, and in contrast, vibration has become a major factor affecting the imaging quality of the aerial camera. How to reduce or avoid the influence of factors such as vibration and the like and improve the imaging quality become a main problem in the development of the field of aviation cameras.
Most of the existing aerial cameras adopt active compensation for image movement errors, namely, a cradle head is added on the basis of the aerial camera, such as a Chinese patent CN201730323961, although a certain image movement compensation effect can be achieved, a single compensation system is difficult to effectively isolate factors such as vibration, imaging quality is still affected, meanwhile, the cradle head can increase unnecessary weight, and the principle of light weight is not met. Furthermore, as processing technology advances increasingly, aspherical lenses move into view. The aspherical mirror can be used for eliminating spherical aberration and flare, and correcting image surface bending and distortion aberration as much as possible; and the correcting capability of one aspheric lens is equal to that of a plurality of spherical lenses, so that the use of the aspheric lens in the lens can achieve light weight.
Disclosure of Invention
The invention provides a passive vibration reduction aspheric lens push-broom swing-broom type aviation camera, which is used for solving the problem of interference of vibration and other factors on imaging, greatly improving the imaging quality of the camera and meeting the principle of light weight of aviation products so as to meet the increasingly complex application requirements of aircrafts.
The technical scheme adopted by the invention is as follows: the imaging module is fixedly connected to a course shaft frame II, the course shaft frame II drives the imaging module to rotate, the center of the reflecting mirror penetrates through the optical axis to form 45 degrees with an image plane, the imaging module is driven by a pitch shaft precise shaft system to rotate, and the pitch shaft precise shaft system and the course shaft compact shaft system are respectively and integrally fixedly connected to the course shaft frame I and are driven by the course shaft precise shaft system to do transverse rolling motion.
The imaging module comprises an aspheric lens group, a lens cone, a support, a gasket, a spigot and a CCD sensor, wherein the aspheric lens group is arranged at a groove of the lens cone, the lens cone is fixed on the support through a screw, the CCD sensor is connected with the spigot through threads, the spigot and the support are fixed through the screw, the gasket is arranged between the spigot and the support, and the support is fastened on the azimuth frame through bolt connection.
The precision shaft system of the roll shaft comprises a moment motor I, a motor connecting seat I, a motor shaft I, a vibration isolation gasket I, a deep groove ball bearing I, a U-shaped frame I, a photoelectric encoder I, an encoder shaft I, an encoder connecting seat I, a pair of angular contact ball bearings I and a vibration isolation gasket IV, wherein the moment motor I is fixed on the U-shaped frame I through the motor connecting seat I, the moment motor I and the motor connecting seat I are connected through screws, the vibration isolation gasket I is arranged between the moment motor I and the motor shaft I, the U-shaped frame I and the motor shaft I are fixedly connected through screws, the deep groove ball bearings I are selected for supporting, the photoelectric encoder I is fixed on the U-shaped frame I through the encoder connecting seat I, the encoder connecting seat I and the U-shaped frame I are connected through screws, the pair of angular contact ball bearings I are selected for supporting between the U-shaped frame I and the encoder shaft I, and the U-shaped frame I are fixedly connected through screws, and the U-shaped frame I is guaranteed to be coaxial, and the vibration isolation gasket is installed at the bottom of the U-shaped frame I.
The pitching shaft precision shafting comprises a torque motor III, a motor connecting seat III, a motor shaft III, a vibration isolation gasket III, a deep groove ball bearing III, a motor seat, a photoelectric encoder III, an encoder connecting seat III, a paired angular contact ball bearing III, an encoder shaft III, an encoder seat, a reflector pressing sheet and a reflector seat, wherein the torque motor III is fixed on the motor seat through the motor connecting seat III, the torque motor III and the motor connecting seat III are fixedly connected through screws, the vibration isolation gasket III is placed between the torque motor III and the motor shaft III, the motor seat and the motor seat III are fastened through screws, the deep groove ball bearing III supports the motor seat and the motor, the photoelectric encoder III is fixed on the encoder seat through the encoder connecting seat III, the encoder connecting seat III and the encoder seat are connected through screws, the paired angular contact ball bearing III supports the encoder seat III, the reflector is arranged in the reflector seat, the reflector is fixed through the four reflector pressing sheets and screws, the encoder shaft III and the motor seat are coaxial, and the motor seat and the encoder shaft III are connected on a transverse rolling frame through bolts.
The heading axis precision shafting comprises: the second moment motor, the second motor connecting seat, the second motor shaft, the second vibration isolation gasket, the second deep groove ball bearing, the second U-shaped frame, the second photoelectric encoder, the second encoder shaft, the second encoder connecting seat, the second paired angular contact ball bearings and the second rolling frame are identical in structural rolling shaft precision shafting, and the second U-shaped frame is fastened to the first rolling frame through bolt connection.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a closed-loop vibration source of a whole device, which is formed by a torque motor I of a horizontal roller shaft precise shafting, a torque motor III of a pitching shaft precise shafting, a torque motor II of a heading shaft precise shafting and a carrier, wherein vibration isolation gaskets I, vibration isolation gaskets III, vibration isolation gaskets II and vibration isolation gaskets IV are arranged at four positions between the torque motor I, the torque motor III, the torque motor II and corresponding motor shafts I, motor shafts III and motor shafts II, and between a U-shaped frame I of the horizontal roller shaft precise shafting and the carrier, and the vibration isolation gaskets I, the vibration isolation gaskets III, the vibration isolation gaskets II and the vibration isolation gaskets IV isolate the whole closed-loop vibration source from an imaging module, so that the influence of vibration on the whole device is greatly reduced, and the imaging quality is improved.
The first deep groove ball bearing and the second deep groove ball bearing adopt a fixing mode that the inner ring is fixed and the outer ring moves, so that the rigidity of the system is improved, the deformation is reduced, and meanwhile, the stability of the accuracy of the shaft system during temperature change is ensured.
In summary, the present invention improves the anti-vibration design over the similar invention for the primary vibration source of the device: the driving motor and the carrier adopt the vibration isolation gasket to carry out vibration isolation, thereby reducing the adverse effect of vibration on the imaging quality of the aviation camera and greatly improving the working performance of the device; compared with the similar aspherical mirror, the spherical aberration and flare are eliminated, and the image surface bending and aberration distortion correcting capability is better; meanwhile, the correcting effect of the aspherical mirror is equivalent to that of a plurality of spherical mirrors, so that the number of spherical mirrors is reduced, and the aim of light weight can be achieved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the structure of an imaging module of the present invention;
FIG. 3 is a schematic diagram of the precision shaft system of the roll shaft of the present invention;
fig. 4 is an enlarged view of section I of fig. 3;
FIG. 5 is a schematic diagram of the pitch axis precision shafting structure of the present invention;
FIG. 6 is a schematic diagram of the precise axis system of the heading axis of the present invention.
Detailed Description
As shown in fig. 1, the imaging module 1 is fixedly connected to a second heading shaft frame 411, the second heading shaft frame is driven to rotate by the first heading shaft frame 4, the center of the reflecting mirror 312 penetrates through the optical axis to form 45 degrees with the image plane, the first heading shaft frame is driven to rotate by the first heading shaft frame 3, and the first heading shaft frame 211 and the first heading shaft frame 4 are integrally and fixedly connected to the first heading shaft frame 3 through the first heading shaft frame 2.
As shown in fig. 2, the imaging module 1 includes an aspheric lens group 101, a lens barrel 102, a support 103, a gasket 104, a spigot 105, and a CCD sensor 106, wherein the aspheric lens group 101 is mounted at a groove of the lens barrel 102, the lens barrel 102 is fixed on the support 103 by screws, the CCD sensor 106 is connected with the spigot 105 by screws, the spigot 105 and the support 103 are fixed by screws, the gasket 104 is disposed between the spigot 105 and the support 103, fine adjustment of focal length is performed by adjusting screws, the support 103 is fastened to an azimuth frame 411 by bolting, an optical axis is required to pass through the center of the aspheric lens group 101, light reaches an image plane of the CCD sensor 106 along the optical axis by a lens, and the CCD sensor 106 converts an optical signal into an analog current signal, and the current signal is amplified and analog-to-digital converted to realize acquisition, storage, transmission, processing and reproduction of an image.
As shown in fig. 3 and 4, the roll axis precision shafting 2 is used for driving a camera to rotate around a transverse roller and performs rotary motion, and comprises a moment motor 201, a motor connecting seat 202, a motor shaft 203, a vibration isolation gasket 204, a deep groove ball bearing 205, a U-shaped frame 206, a photoelectric encoder 207, an encoder shaft 208, an encoder connecting seat 209, a pair of angular contact ball bearings 210, a roll frame 211 and a vibration isolation gasket 212, wherein a moment motor 201 is selected as a servo driving component in the roll axis precision shafting 2 and is used for driving the roll frame 211 to rotate, the moment motor 201 is fixed on a U-shaped frame 206 through the motor connecting seat 202 in a split type connecting manner, the moment motor 201 and the motor connecting seat 202 are connected through screws, the moment motor connecting seat 202 and the U-shaped frame 206 are connected through screws, a gasket 204 is arranged between the moment motor 201 and the motor shaft 203, the U-shaped frame 206 and the motor shaft 203 are connected through screws, a pair of ball bearings 205 are selected between the U-shaped frame 206 and the motor shaft 203 to support, the photoelectric encoder 207 is fixed on the U-shaped frame 206 through the encoder connecting seat 209 and the motor shaft 206 through the encoder connecting seat 209, the photoelectric encoder 206 is fixed on the U-shaped frame 206 and the U-shaped frame 206 through the screw connecting seat 208, the photoelectric encoder connecting seat 206 is fixed between the photoelectric encoder connecting seat 206 and the U-shaped frame 206 and the motor connecting seat 206 through screws, the vibration isolation gasket 206 is fixed between the U-shaped frame and the U-shaped frame 206 and the motor connecting seat 206,
as shown in fig. 5, the pitch axis precision shafting 3 is used for driving a mirror 312 to rotate around a pitch axis, and comprises a torque motor three 301, a motor connecting seat three 302, a motor shaft three 303, a vibration isolation gasket three 304, a deep groove ball bearing three 305, a motor seat 306, a photoelectric encoder three 307, an encoder connecting seat three 308, a paired angular contact ball bearing three 309, an encoder shaft three 310, an encoder seat 311, a mirror 312, a mirror pressing piece 313 and a mirror seat 314, wherein the torque motor three 301 is selected as a servo driving component in the pitch axis precision shafting 3, the torque motor three 301 is fixed on the motor seat 306 through the motor connecting seat three 302 in a split-type connection mode, screws are adopted for fixedly connecting the torque motor three 301 and the motor connecting seat three 302, A vibration isolation gasket III 304 is placed between a torque motor III 301 and a motor shaft III 303, the torque motor III 301 and the motor III 303 are fastened through screws, a deep groove ball bearing III 305 is used for supporting the motor seat 306 and the motor III 303, a photoelectric encoder III 307 is fixed on an encoder seat 311 through an encoder connecting seat III 308, screw connections are adopted between the photoelectric encoder III 307 and the encoder connecting seat III 308 and between the encoder connecting seat III 308 and the encoder seat 311, a paired angular contact ball bearing III 309 is used for supporting the encoder seat 311 and the encoder shaft III 310, a reflector 312 is arranged in a reflector seat 314, and the coaxiality of the encoder shaft III 310 and the motor shaft III 303 is guaranteed through four reflector press pieces 313 and screw fixation, and the motor seat 306 and the encoder seat 311 are fastened on a transverse rolling frame 211 through screw connections.
As shown in fig. 6, the heading axis precision shafting 4 is used for driving the imaging module 1 to perform rotational motion around the heading axis, and includes: the second torque motor 401, the second motor connecting seat 402, the second motor shaft 403, the second vibration isolation gasket 404, the second deep groove ball bearing 405, the second U-shaped frame 406, the second photoelectric encoder 407, the second encoder shaft 408, the second encoder connecting seat 209, the second paired angular contact ball bearings 410 and the second roll frame 411 are identical, and the structure of the second roll shaft is the same as that of the precise roll shaft system 1, and details are omitted herein, wherein the second U-shaped frame 406 is fastened to the first roll frame 211 through bolt connection.
Further, the first torque motor 201 of the roll shaft precise shafting 2, the third torque motor 301 of the pitch shaft precise shafting 3, the second torque motor 401 of the heading shaft precise shafting 4 and the carrier mechanism form a closed-loop vibration source of the whole device, and the vibration isolation gasket I204, the vibration isolation gasket III 304, the vibration isolation gasket II 404 and the vibration isolation gasket IV 212 are respectively arranged between the first torque motor 201, the third torque motor 301, the second torque motor 401 and the corresponding first motor shaft 203, the third motor shaft 303 and the second motor shaft 403, and between the U-shaped frame 206 of the roll shaft precise shafting 1 and the carrier mechanism and are all formed by vibration-damping alloy. The vibration isolation gasket I204, the vibration isolation gasket III 304, the vibration isolation gasket II 404 and the vibration isolation gasket IV 212 isolate the whole closed-loop vibration source from the imaging module 1, so that the influence of vibration on the whole device is greatly reduced, and the imaging quality is improved.
Further, the first deep groove ball bearing 205 and the second deep groove ball bearing 405 are fixed by an inner ring and an outer ring is fixed in a floating manner, so that the rigidity of the system is improved, the deformation is reduced, and meanwhile, the stability of the accuracy of the shaft system during temperature change is ensured.
The working principle and process of the invention are further described below:
in the actual flight shooting process, a transverse roller U-shaped frame I206 is fixed on a carrier by a screw, a transverse roller precise shaft system 2 and a pitching shaft precise shaft system 3 rotate to a proper angle for shooting, light passes through a reflector 312, passes through an aspheric optical lens group 101 and reaches the image surface of a CCD sensor 106, an optical signal of the CCD sensor 1 is converted into an analog current signal, and the current signal is amplified and subjected to analog-digital conversion to acquire, store, transmit, process and reproduce an image;
aiming at vibration influence, the vibration isolation gasket I204, the vibration isolation gasket III 304, the vibration isolation gasket II 404 and the vibration isolation gasket IV 212 isolate the whole closed-loop vibration source from the imaging module 1, so that the influence of vibration on the whole device is greatly reduced, the vibration isolation gasket I204, the vibration isolation gasket III 304, the vibration isolation gasket II 404 and the vibration isolation gasket IV 212 are all made of vibration-damping alloy, the alloy has excellent vibration and noise reduction performance, the using temperature and frequency range is wide, and the mechanical property is better than that of the traditional rubber vibration isolation gasket;
the device adopts the aspheric lens group, eliminates spherical aberration and flare, has good capability of correcting image surface bending and distortion aberration, and improves imaging quality; meanwhile, the correcting effect of the aspherical mirror is equivalent to that of a plurality of spherical mirrors, so that the number of spherical mirrors is reduced, and the purpose of light weight is achieved.
Claims (4)
1. The utility model provides a passive damping aspheric lens push broom sweeps formula aviation camera, its characterized in that: the imaging module is fixedly connected to a heading shaft frame II, the heading shaft frame II drives the imaging module to rotate by the heading shaft precise shaft system, the center of the reflecting mirror penetrates through the optical axis to form 45 degrees with an image plane, the imaging module is driven by the pitching shaft precise shaft system to rotate, and the pitching shaft precise shaft system and the heading shaft tight shaft system are respectively and integrally fixedly connected to the heading shaft frame I and are driven by the heading shaft precise shaft system to do transverse rolling motion;
the precision shaft system of the roll shaft comprises a moment motor I, a motor connecting seat I, a motor shaft I, a vibration isolation gasket I, a deep groove ball bearing I, a U-shaped frame I, a photoelectric encoder I, an encoder shaft I, an encoder connecting seat I, a pair of angular contact ball bearings I and a vibration isolation gasket IV, wherein the moment motor I is fixed on the U-shaped frame I through the motor connecting seat I, the moment motor I and the motor connecting seat I are connected through screws, the vibration isolation gasket I is arranged between the moment motor I and the motor shaft I, the U-shaped frame I and the motor shaft I are fixedly connected through screws, the deep groove ball bearings I are selected for supporting, the photoelectric encoder I is fixed on the U-shaped frame I through the encoder connecting seat I, the encoder connecting seat I and the U-shaped frame I are connected through screws, the pair of angular contact ball bearings I are selected for supporting between the U-shaped frame I and the encoder shaft I, and the U-shaped frame I are fixedly connected through screws, and the U-shaped frame I is guaranteed to be coaxial, and the vibration isolation gasket is installed at the bottom of the U-shaped frame I.
2. The passive vibration-damped aspheric lens push-broom, swing-broom type aerial camera of claim 1, wherein: the imaging module comprises an aspheric lens group, a lens cone, a support, a gasket, a spigot and a CCD sensor, wherein the aspheric lens group is arranged at a groove of the lens cone, the lens cone is fixed on the support through a screw, the CCD sensor is connected with the spigot through threads, the spigot and the support are fixed through the screw, the gasket is arranged between the spigot and the support, and the support is fastened on the azimuth frame through bolt connection.
3. The passive vibration-damped aspheric lens push-broom, swing-broom type aerial camera of claim 1, wherein: the heading axis precision shafting comprises: the second moment motor, the second motor connecting seat, the second motor shaft, the second vibration isolation gasket, the second deep groove ball bearing, the second U-shaped frame, the second photoelectric encoder, the second encoder shaft, the second encoder connecting seat, the second paired angular contact ball bearings and the second rolling frame are identical in structural rolling shaft precision shafting, and the second U-shaped frame is fastened to the first rolling frame through bolt connection.
4. The passive vibration-damped aspheric lens push-broom, swing-broom type aerial camera of claim 1, wherein: the pitching shaft precision shafting comprises a torque motor III, a motor connecting seat III, a motor shaft III, a vibration isolation gasket III, a deep groove ball bearing III, a motor seat, a photoelectric encoder III, an encoder connecting seat III, a paired angular contact ball bearing III, an encoder shaft III, an encoder seat, a reflector pressing sheet and a reflector seat, wherein the torque motor III is fixed on the motor seat through the motor connecting seat III, the torque motor III and the motor connecting seat III are fixedly connected through screws, the vibration isolation gasket III is placed between the torque motor III and the motor shaft III, the motor seat and the motor seat III are fastened through screws, the deep groove ball bearing III supports the motor seat and the motor, the photoelectric encoder III is fixed on the encoder seat through the encoder connecting seat III, the encoder connecting seat III and the encoder seat are connected through screws, the paired angular contact ball bearing III supports the encoder seat III, the reflector is arranged in the reflector seat, the reflector is fixed through the four reflector pressing sheets and screws, the encoder shaft III and the motor seat are coaxial, and the motor seat and the encoder shaft III are connected on a transverse rolling frame through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070565.XA CN109578759B (en) | 2019-01-25 | 2019-01-25 | Passive vibration reduction type aspheric lens push-broom swing-broom type aviation camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070565.XA CN109578759B (en) | 2019-01-25 | 2019-01-25 | Passive vibration reduction type aspheric lens push-broom swing-broom type aviation camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578759A CN109578759A (en) | 2019-04-05 |
| CN109578759B true CN109578759B (en) | 2023-12-15 |
Family
ID=65917925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910070565.XA Active CN109578759B (en) | 2019-01-25 | 2019-01-25 | Passive vibration reduction type aspheric lens push-broom swing-broom type aviation camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109578759B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110362120B (en) * | 2019-07-24 | 2021-01-15 | 中国科学院西安光学精密机械研究所 | Scanning control method for two-dimensional scanning wide-range imaging platform |
| CN112276993A (en) * | 2019-07-27 | 2021-01-29 | 九江精密测试技术研究所 | Three-axis turntable for simulating head movement of human body |
| CN110645311B (en) * | 2019-10-23 | 2020-12-29 | 长春工业大学 | Formula of sweeping photoelectricity stabilising arrangement that takes photo by plane |
| CN110822239B (en) * | 2019-12-02 | 2021-05-07 | 吉林建筑大学 | Sliding type mounting device with compensation mechanism for remote sensing scanning mirror |
| CN211592977U (en) * | 2019-12-27 | 2020-09-29 | 南京祖航航空科技有限公司 | Image motion eliminating mechanism of aerial surveying camera |
| CN114198455A (en) * | 2021-12-15 | 2022-03-18 | 上海新纪元机器人有限公司 | Self-balancing vibration damping system mounted on carrying equipment |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06125490A (en) * | 1992-10-14 | 1994-05-06 | Nippon Hoso Kyokai <Nhk> | Vibration proof device for camera |
| CN101619971A (en) * | 2009-07-31 | 2010-01-06 | 北京航空航天大学 | Aerophotography gyrostabilized platform with three freedom degrees and large load |
| CN102230801A (en) * | 2011-03-30 | 2011-11-02 | 北京航空航天大学 | Light-type triaxial ISP (inertially stabilized platform) system using aerial remote sensing technology |
| CN105659792B (en) * | 2009-04-29 | 2012-11-21 | 西安应用光学研究所 | The speculum that adopts three axle rate gyroscopes to realize surely is taken aim at system |
| CN103293823A (en) * | 2012-02-24 | 2013-09-11 | 鸿富锦精密工业（深圳）有限公司 | Automatic focusing imaging module |
| CN103471566A (en) * | 2013-08-23 | 2013-12-25 | 北京空间机电研究所 | Scanning mechanism applied to aerial camera |
| CN104168460A (en) * | 2014-08-24 | 2014-11-26 | 武汉华中天经光电系统有限公司 | Light airborne three-axis stabilization image device |
| CN205197849U (en) * | 2015-11-20 | 2016-05-04 | 佛山市顺德区美的电热电器制造有限公司 | Damping pad and cooking machine |
| CN105599914A (en) * | 2016-01-05 | 2016-05-25 | 零度智控（北京）智能科技有限公司 | Cradle head |
| CN107097966A (en) * | 2017-02-14 | 2017-08-29 | 深圳市道通智能航空技术有限公司 | A kind of head and unmanned vehicle |
| CN107800228A (en) * | 2017-11-15 | 2018-03-13 | 珠海格力电器股份有限公司 | Electric machine assembly, centrifugal blower and air purifier |
| CN209430986U (en) * | 2019-01-25 | 2019-09-24 | 吉林大学 | A kind of aspheric lens of passive vibration damping pushes away sweeping and sweeps type aerial camera |
-
2019
- 2019-01-25 CN CN201910070565.XA patent/CN109578759B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06125490A (en) * | 1992-10-14 | 1994-05-06 | Nippon Hoso Kyokai <Nhk> | Vibration proof device for camera |
| CN105659792B (en) * | 2009-04-29 | 2012-11-21 | 西安应用光学研究所 | The speculum that adopts three axle rate gyroscopes to realize surely is taken aim at system |
| CN101619971A (en) * | 2009-07-31 | 2010-01-06 | 北京航空航天大学 | Aerophotography gyrostabilized platform with three freedom degrees and large load |
| CN102230801A (en) * | 2011-03-30 | 2011-11-02 | 北京航空航天大学 | Light-type triaxial ISP (inertially stabilized platform) system using aerial remote sensing technology |
| CN103293823A (en) * | 2012-02-24 | 2013-09-11 | 鸿富锦精密工业（深圳）有限公司 | Automatic focusing imaging module |
| CN103471566A (en) * | 2013-08-23 | 2013-12-25 | 北京空间机电研究所 | Scanning mechanism applied to aerial camera |
| CN104168460A (en) * | 2014-08-24 | 2014-11-26 | 武汉华中天经光电系统有限公司 | Light airborne three-axis stabilization image device |
| CN205197849U (en) * | 2015-11-20 | 2016-05-04 | 佛山市顺德区美的电热电器制造有限公司 | Damping pad and cooking machine |
| CN105599914A (en) * | 2016-01-05 | 2016-05-25 | 零度智控（北京）智能科技有限公司 | Cradle head |
| CN107097966A (en) * | 2017-02-14 | 2017-08-29 | 深圳市道通智能航空技术有限公司 | A kind of head and unmanned vehicle |
| CN107800228A (en) * | 2017-11-15 | 2018-03-13 | 珠海格力电器股份有限公司 | Electric machine assembly, centrifugal blower and air purifier |
| CN209430986U (en) * | 2019-01-25 | 2019-09-24 | 吉林大学 | A kind of aspheric lens of passive vibration damping pushes away sweeping and sweeps type aerial camera |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109578759A (en) | 2019-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109578759B (en) | Passive vibration reduction type aspheric lens push-broom swing-broom type aviation camera | |
| CN102928978B (en) | Light beam scanning mechanism based on rotation double wedge lenses | |
| CN106054363B (en) | High zoom ratio medium wave infrared continuous zoom lens and its method of work | |
| CN104635317A (en) | Light coaxial three-reflector spatial optical remote sensor structure | |
| CN110749985B (en) | Large-magnification continuous zoom area array scanning infrared optical system and image shift compensation method | |
| CN101719700A (en) | Moment motor driving shafting module for inner frame of airborne photoelectric platform | |
| CN111123507B (en) | Synchronous scanning rotating double-prism device and one-dimensional scanning method thereof | |
| CN209430986U (en) | A kind of aspheric lens of passive vibration damping pushes away sweeping and sweeps type aerial camera | |
| CN110596872B (en) | Medium wave infrared continuous zooming system with reciprocating compensation group | |
| CN107255861A (en) | A kind of subminaturization, big multiple proportions, the airborne pick-up lens of high definition zoom | |
| CN205899118U (en) | Infrared continuous -zoom lens of hypermutation multiple proportions medium wave | |
| CN206031807U (en) | Machine carries two photosynthetic one optoelectronic pod | |
| CN103631003B (en) | LONG WAVE INFRARED refrigeration mode long-focus, heavy caliber, Large visual angle camera lens | |
| CN114355542B (en) | High-precision three-view-field switching device based on elastic pre-tightening | |
| CN213903945U (en) | Double fast reflecting mirror imaging system for compensating image motion | |
| CN214122457U (en) | Servo transmission platform of coaxial feed airborne weather radar | |
| CN105676432B (en) | A kind of optical compensation formula LONG WAVE INFRARED continuous zooming optical system | |
| CN110703400B (en) | Focusing mechanism for space optical remote sensor | |
| CN109884776B (en) | Large-view-field, low-distortion and high-spectrum optical system based on pixel-level optical filter | |
| CN112285913A (en) | Double-fast-reflection-mirror imaging system for compensating image motion | |
| CN112068217A (en) | Day and night detector for aircraft | |
| CN212083818U (en) | Compound axle list trans machine carries laser communication and follows and aims device | |
| CN219758574U (en) | Image shift compensation optical system and aerial remote sensing system | |
| CN111853481B (en) | Multi-degree-of-freedom flexible supporting structure and photoelectric stabilized sighting turret universal frame | |
| CN108303833B (en) | High-precision space focusing mechanism with annular layout |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |