CN112399066A - Aviation scout load slant distance focusing device - Google Patents
Aviation scout load slant distance focusing device Download PDFInfo
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- CN112399066A CN112399066A CN201910754565.1A CN201910754565A CN112399066A CN 112399066 A CN112399066 A CN 112399066A CN 201910754565 A CN201910754565 A CN 201910754565A CN 112399066 A CN112399066 A CN 112399066A
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- fixed
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- lantern ring
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- 238000000034 method Methods 0.000 abstract description 6
- 230000000007 visual effect Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
Abstract
The invention provides an aviation reconnaissance load slant distance focusing device which comprises a camshaft, a fixed sleeve sleeved at one end of the camshaft, and at least two plug-pull pieces fixedly connected to the fixed sleeve and clamped with the camshaft; the fixed sleeve is provided with mounting holes corresponding to the plug-pull pieces, each plug-pull piece comprises a fixed plate and a clamping structure fixedly connected to the fixed plate, each clamping structure of each plug-pull piece penetrates through one mounting hole, and the corresponding fixed plate is fixedly connected with the fixed sleeve; the camshaft is provided with a clamping groove, and one end of each clamping structure, which is far away from the fixing plate, is clamped and slides in the clamping groove. The aviation reconnaissance load slant distance focusing device provided by the invention can solve the defocusing problem caused by slant distance change in the swinging process of the swinging type aviation reconnaissance load.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of design of an aerial reconnaissance system, in particular to an aerial reconnaissance load slant distance focusing device.
[ background of the invention ]
At present, the domestic and foreign aviation reconnaissance loads in the train can be divided into two types according to the relation between the visual axis and the flight direction of the carrier: push-broom and swing-broom. The TDI-CCD line direction of the push-broom type reconnaissance load is vertical to the flight direction, and the visual axis flies forwards along with the carrier to continuously acquire images. Because the design indexes of the optical system are mutually restricted, and the design of the field angle is limited, the method is difficult to realize a reconnaissance task with a large transverse accommodating width in one set, and the efficiency is low. The TDI-CCD line direction of the swing-scanning type reconnaissance load is parallel to the flight direction, the visual axis periodically swings and scans along the direction vertical to the flight direction while flying forwards along with the carrier, a strip is formed by reciprocating swing and scanning in each period, the strips formed in different periods continuously expand forwards along with the forward flying of the carrier, and finally the full reconnaissance range is covered. The mode can realize the reconnaissance task of large transverse accommodating width in the vertical flight direction in one frame, greatly improves the reconnaissance efficiency, ensures the safety of the aircraft carrier, and is popular. However, a new problem arises, namely, the tilt distance of the visual axis continuously changes along with the change of the scanning angle in the process of the swing scanning type scout load, so that the gaussian image surface continuously moves to generate defocusing, and the imaging quality is reduced.
In the existing technical scheme, a focusing motor is mostly directly adopted for quasi-real-time compensation, and the problems that the compensation precision is not high enough, complete real-time compensation cannot be realized and the reliability of an electrical system is relatively low exist due to higher requirements on the bandwidth and precision of a control system.
In view of the above, it is desirable to provide a new device for focusing an aerial reconnaissance load slant distance to overcome the above-mentioned drawbacks.
[ summary of the invention ]
The invention aims to provide an aerial reconnaissance load slant distance focusing device which can solve the problem of defocusing caused by slant distance change in a swinging and scanning process of a swinging and scanning type aerial reconnaissance load.
In order to achieve the above object, the present invention provides an aviation scout load slant distance focusing device, comprising a camshaft, a fixing sleeve sleeved at one end of the camshaft, and at least two plug-pull pieces fixedly connected to the fixing sleeve and clamped with the camshaft; the fixed sleeve is provided with mounting holes corresponding to the plug-pull pieces, each plug-pull piece comprises a fixed plate and a clamping structure fixedly connected to the fixed plate, each clamping structure of each plug-pull piece penetrates through one mounting hole, and the corresponding fixed plate is fixedly connected with the fixed sleeve; the camshaft is provided with a clamping groove, and one end of each clamping structure, which is far away from the fixing plate, is clamped and slides in the clamping groove.
In a preferred embodiment, the camshaft comprises a shaft body, and a first sleeve ring and a second sleeve ring which are sleeved and fixedly connected with the shaft body; the first lantern ring and the second lantern ring are arranged at intervals, the clamping groove is formed by surrounding the first lantern ring and the second lantern ring, and the clamping groove is in a spiral shape on the shaft body.
In a preferred embodiment, the first collar is disposed at one end of the shaft body; the camshaft still includes adjusts the mounting panel, it is fixed in to adjust the mounting panel the axis body is kept away from the one end of first lantern ring, the second lantern ring is located first lantern ring with adjust between the mounting panel and be close to first lantern ring.
In a preferred embodiment, the first and second lantern rings are circular and the outer diameter of the first lantern ring corresponds to the outer diameter of the second lantern ring; the fixing sleeve comprises a circular inner hole, and the diameter of the inner hole corresponds to the diameter of the outer circle of the first lantern ring; the fixing sleeve is sleeved on the first lantern ring and the second lantern ring.
In a preferred embodiment, the inner bore is clearance fitted with the first collar and the second collar, respectively.
In a preferred embodiment, an angle scale mark is arranged on one side of the second sleeve ring, which is far away from the first sleeve ring.
In a preferred embodiment, the retaining structure comprises a fixed shaft, a bearing assembly sleeved on the fixed shaft and a bearing cover fixedly connected with the fixed shaft, wherein one end of the fixed shaft is fixedly connected with the fixed plate; the bearing cover comprises a top cover and a bolt fixedly connected to the top cover, a screw hole corresponding to the bolt is formed in one end, far away from the fixed plate, of the fixed shaft, and the bolt is fixed with the corresponding screw hole through threads and abuts against one end of the bearing assembly through the corresponding top cover.
In a preferred embodiment, the fixed shaft comprises a fixed end and a clamping end fixedly connected to the fixed end, and one end of the fixed end, which is far away from the clamping end, is fixedly connected to the fixed plate; the fixed end and the clamping end are cylindrical and are coaxially arranged, and the diameter of the fixed end is larger than that of the clamping end; the bearing assembly is sleeved on the clamping end, and one end, far away from the top cover, of the bearing assembly abuts against the fixed end; the fixed end is contained in and clamped in a mounting hole, and the bearing assembly sleeved on the clamping end is contained in the clamping groove.
In a preferred embodiment, the bearing assembly comprises a bearing cartridge and two bearings housed in the bearing cartridge; the bearing cylinder comprises a cylinder body and a clamping ring fixed in the cylinder body; the two bearings are respectively positioned on two sides of the snap ring.
In a preferred embodiment, the position of the fixing sleeve corresponding to each mounting hole protrudes in a direction away from the camshaft to form a plurality of mounting platforms, each mounting platform is provided with a plurality of threaded holes, each fixing plate is provided with a plurality of unthreaded holes corresponding to the plurality of threaded holes, and each fixing plate abuts against one mounting platform and passes through the corresponding unthreaded hole and the threaded hole through a fixing piece to realize the fixed connection of the fixing plate and the fixing sleeve.
According to the aviation reconnaissance load slant distance focusing device provided by the invention, the plug-pull piece penetrates through the fixed sleeve and is fixedly connected with the fixed sleeve, and the plug-pull piece penetrates through one end of the fixed sleeve to be clamped and slidably connected in the clamping groove, so that the fixed sleeve is rotatably connected with the camshaft; in addition, the arrangement of the two bearings in the bearing barrel of the bearing assembly is convenient for dispersing the pressure of the bearings, and the reliability of the bearing assembly is improved. The aviation reconnaissance load slant distance focusing device provided by the invention can solve the defocusing problem caused by slant distance change in the swinging process of the swinging type aviation reconnaissance load.
[ description of the drawings ]
Fig. 1 is a perspective view of a camshaft in the aerial reconnaissance load slant-distance focusing device provided by the invention.
Fig. 2 is a perspective view of a fixing sleeve in the aviation scout load slant focusing device provided by the invention.
Fig. 3 is a cross-sectional view of a plug-in piece in the aviation scout load slant focusing device provided by the invention.
Fig. 4 is a perspective view of the aerial reconnaissance load slant-distance focusing device and the focusing assembly provided by the invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 4, the present invention provides an aviation scout load slant focusing apparatus 100, which includes a camshaft 10, a fixing sleeve 20 sleeved on one end of the camshaft 10, and at least two inserting and pulling members 30 fixedly connected to the fixing sleeve 20 and connected to the camshaft 10 in a clamping manner.
Specifically, the fixing sleeve 20 is provided with a mounting hole 201 corresponding to the plug-pull member 30, the plug-pull member 30 includes a fixing plate 31 and a retaining structure 32 fixedly connected to the fixing plate 31, and the retaining structure 32 of each plug-pull member 30 passes through one mounting hole 201 and the corresponding fixing plate 31 is fixedly connected to the fixing sleeve 20. The camshaft 10 is provided with a slot 101, and one end of each retaining structure 32, which is far away from the fixed plate 31, is retained and slides in the slot 101. The fixed sleeve 20 is clamped and slidably connected to the clamping groove 101 through the plug-pull member 30, so as to be rotatably connected with the camshaft 10, and further, the focusing assembly 200 is adjusted. In this embodiment, the number of the mounting holes 201 is two, and the mounting holes are circumferentially spaced at 180 ° intervals, so that the relative movement between the fixed sleeve 20 and the camshaft 10 is smooth and does not cause clamping stagnation.
In this embodiment, the camshaft 10 includes a shaft body 11, and a first collar 12 and a second collar 13 that are sleeved and fixedly connected to the shaft body 11. The first collar 12 and the second collar 13 are disposed at an interval, the locking groove 101 is defined by the first collar 12 and the second collar 13, and the locking groove 101 is spiral on the shaft body 11, that is, when the fixed sleeve 20 and the camshaft 10 rotate relatively, the locking structure 32 of the plug 30 slides in the locking groove 101, and the fixed sleeve 20 and the camshaft 10 move axially, so as to complete the focusing of the skew distance. One end of the retaining structure 32, which is far away from the fixing plate 31, is retained between the first collar 12 and the second collar 13 and can slide along the slot 101.
Further, the first collar 12 is disposed at one end of the shaft body 11. The camshaft 10 further comprises an adjusting mounting plate 14, and the adjusting mounting plate 14 is used for being fixedly connected with the focusing assembly 200. The adjusting and mounting plate 14 is fixed at one end of the shaft body 11 far away from the first collar 12, and the second collar 13 is located between the first collar 12 and the adjusting and mounting plate 14 and close to the first collar 12.
In this embodiment, the first collar 12 and the second collar 13 are circular rings, and the outer diameter of the first collar 12 corresponds to the outer diameter of the second collar 13. The fixing sleeve 20 comprises a circular inner bore 21 and the diameter of the inner bore 21 corresponds to the outer diameter of the first collar 12. The fixing sleeve 20 is sleeved on the first sleeve ring 12 and the second sleeve ring 13. One end of the retaining structure 32, which is away from the fixing plate 31, is received and slid in the retaining groove 101, so as to constrain the fixing sleeve 20, on one hand, to connect the fixing sleeve 20 with the camshaft 10, and on the other hand, to enable the fixing sleeve 20 and the camshaft 10 to generate a relative spiral motion, that is, the fixing sleeve 20 can move axially along the retaining groove 101 while rotating relative to the camshaft 10.
Furthermore, the inner hole 21 is in clearance fit with the first collar 12 and the second collar 13, respectively, so that the fixing sleeve 20 can slide on the surfaces of the first collar 12 and the second collar 13.
In addition, an angle scale mark 131 is disposed on a side of the second collar 13 away from the first collar 12. The angle scale lines 131 are respectively located at 0 °, 90 ° and 180 ° 270 ° positions of the central curve of the slot 101, so that when the aerial reconnaissance load slant focusing device 100 is assembled with the focusing assembly 200 in a whole machine after being assembled, the angle position is ensured to be consistent with the corresponding sweep angle. The change rule of the spiral curve of the clamping groove 101 is correspondingly consistent with the lower slant distance focusing amount of the corresponding corner, and is given by optical design. The angular groove 131 corresponds to the rotation angle of the fixing sleeve 20 and the camshaft 10 moving along the spiral curve of the locking slot 101.
The retaining structure 32 includes a fixed shaft 321, a bearing assembly 322 sleeved on the fixed shaft 321, and a bearing cover 323 fixedly connected to the fixed shaft 321, wherein one end of the fixed shaft 321 is fixedly connected to the fixed plate 31. The bearing cover 323 comprises a top cover 3231 and a bolt 3232 fixedly connected to the top cover 3231, a screw hole 3211 corresponding to the bolt 3232 is formed in one end of the fixing shaft 321 away from the fixing plate 31, the bolt 3232 is fixed to the corresponding screw hole 3211 in a threaded manner, and the corresponding top cover 3231 abuts against one end of the bearing assembly 322 to restrain the bearing assembly 322. The bearing assembly 322 is respectively connected with the opposite surfaces of the first collar 12 and the second collar 13 in a rolling manner, so that the friction force between the bearing assembly and the first collar 12 and the second collar 13 is reduced, and the relative angle between the fixed sleeve 20 and the camshaft 10 is convenient to adjust.
Furthermore, the fixing shaft 321 includes a fixing end 3211 and a holding end 3212 fixedly connected to the fixing end 3211, and an end of the fixing end 3211 far from the holding end 3212 is fixedly connected to the fixing plate 31. The fixed end 3211 and the clamping end 3212 are cylindrical and coaxially arranged, and the diameter of the fixed end 3211 is greater than that of the clamping end 3212. The bearing assembly 322 is sleeved on the retaining end 3212 and one end of the bearing assembly 322 away from the top cover 3231 abuts against the fixed end 3211. The fixed end 3211 is accommodated in and clamped in one of the mounting holes 201, so that the fixed end 3211 is tightly connected with the fixing sleeve 20; the bearing assembly 322 sleeved on the retaining end 3212 is received in the retaining groove 101 and fully contacts the surfaces of the first collar 12 and the second collar 13, so as to reduce the friction force generated by the movement of the fixing shaft 321 relative to the retaining groove 101.
In this embodiment, the bearing assembly 322 includes a bearing barrel 3221 and two bearings 3222 accommodated in the bearing barrel 3221. The bearing cylinder 3221 includes a cylinder 3223 and a snap ring 3224 fixed in the cylinder 3223. The two bearings 3222 are respectively located at two sides of the snap ring 3224. The two bearings 3222 are arranged to facilitate pressure distribution of the bearings 3222 and improve reliability of the bearing assembly 322.
In addition, the position of the fixing sleeve 20 corresponding to each mounting hole 201 protrudes in a direction away from the camshaft 10 to form a plurality of mounting platforms 22, each mounting platform 22 is provided with a plurality of threaded holes 221, each fixing plate 31 is provided with a plurality of unthreaded holes 311 corresponding to the plurality of threaded holes 221, each fixing plate 31 abuts against one mounting platform 22, and the fixing connection between the fixing plate 31 and the fixing sleeve 20 is realized by a fixing piece passing through the corresponding unthreaded hole 311 and the corresponding threaded hole 221.
According to the aviation reconnaissance load slant distance focusing device 100 provided by the invention, the plug-pull piece 30 penetrates through the fixed sleeve 20 and is fixedly connected with the fixed sleeve 20, and one end of the plug-pull piece 30 penetrating through the fixed sleeve 20 is clamped and slidably connected in the clamping groove 101, so that the fixed sleeve 20 is rotatably connected with the camshaft 10; in addition, the arrangement of the two bearings 3222 in the bearing cylinder 3221 in the fork plate member 30 facilitates the pressure distribution of the bearings 3222 and improves the reliability of the bearing assembly 322. The aviation reconnaissance load slant distance focusing device 100 provided by the invention can solve the defocusing problem caused by slant distance change in the swinging process of the swinging type aviation reconnaissance load.
The invention is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, so that the invention is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides an aviation reconnaissance load slant focusing device which characterized in that: the device comprises a camshaft, a fixed sleeve sleeved at one end of the camshaft and at least two plug-pull pieces fixedly connected to the fixed sleeve and clamped with the camshaft; the fixed sleeve is provided with mounting holes corresponding to the plug-pull pieces, each plug-pull piece comprises a fixed plate and a clamping structure fixedly connected to the fixed plate, each clamping structure of each plug-pull piece penetrates through one mounting hole, and the corresponding fixed plate is fixedly connected with the fixed sleeve; the camshaft is provided with a clamping groove, and one end of each clamping structure, which is far away from the fixing plate, is clamped and slides in the clamping groove.
2. The aerial reconnaissance load slant range focusing apparatus of claim 1, wherein: the camshaft comprises a shaft body, a first sleeve ring and a second sleeve ring, wherein the first sleeve ring and the second sleeve ring are sleeved and fixedly connected on the shaft body; the first lantern ring and the second lantern ring are arranged at intervals, the clamping groove is formed by surrounding the first lantern ring and the second lantern ring, and the clamping groove is in a spiral shape on the shaft body.
3. The aerial reconnaissance load slant range focusing apparatus of claim 2, wherein: the first collar is arranged at one end of the shaft body; the camshaft still includes adjusts the mounting panel, it is fixed in to adjust the mounting panel the axis body is kept away from the one end of first lantern ring, the second lantern ring is located first lantern ring with adjust between the mounting panel and be close to first lantern ring.
4. The aerial reconnaissance load slant range focusing apparatus of claim 3, wherein: the first lantern ring and the second lantern ring are annular, and the excircle diameter of the first lantern ring corresponds to that of the second lantern ring; the fixing sleeve comprises a circular inner hole, and the diameter of the inner hole corresponds to the diameter of the outer circle of the first lantern ring; the fixing sleeve is sleeved on the first lantern ring and the second lantern ring.
5. The aerial reconnaissance load slant range focusing apparatus of claim 4, wherein: the inner hole is in clearance fit with the first sleeve ring and the second sleeve ring respectively.
6. The aerial reconnaissance load slant range focusing apparatus of claim 4, wherein: and one side of the second sleeve ring, which is deviated from the first sleeve ring, is provided with angle scale marks.
7. The aerial reconnaissance load slant range focusing apparatus of claim 1, wherein: the clamping structure comprises a fixed shaft, a bearing assembly sleeved on the fixed shaft and a bearing cover fixedly connected with the fixed shaft, and one end of the fixed shaft is fixedly connected with the fixed plate; the bearing cover comprises a top cover and a bolt fixedly connected to the top cover, a screw hole corresponding to the bolt is formed in one end, far away from the fixed plate, of the fixed shaft, and the bolt is fixed with the corresponding screw hole through threads and abuts against one end of the bearing assembly through the corresponding top cover.
8. The aerial reconnaissance load slant range focusing apparatus of claim 7, wherein: the fixing shaft comprises a fixing end and a clamping end fixedly connected to the fixing end, and one end of the fixing end, far away from the clamping end, is fixedly connected with the fixing plate; the fixed end and the clamping end are cylindrical and are coaxially arranged, and the diameter of the fixed end is larger than that of the clamping end; the bearing assembly is sleeved on the clamping end, and one end, far away from the top cover, of the bearing assembly abuts against the fixed end; the fixed end is contained in and clamped in a mounting hole, and the bearing assembly sleeved on the clamping end is contained in the clamping groove.
9. The aerial reconnaissance load slant range focusing apparatus of claim 8, wherein: the bearing assembly comprises a bearing barrel and two bearings accommodated in the bearing barrel; the bearing cylinder comprises a cylinder body and a clamping ring fixed in the cylinder body; the two bearings are respectively positioned on two sides of the snap ring.
10. The aerial reconnaissance load slant range focusing apparatus of claim 1, wherein: the position of the fixed sleeve corresponding to each mounting hole is protruded towards the direction far away from the camshaft to form a plurality of mounting tables, a plurality of threaded holes are formed in each mounting table, a plurality of unthreaded holes corresponding to the plurality of threaded holes are formed in each fixing plate, each fixing plate is abutted against one mounting table and penetrates through the corresponding unthreaded hole and the corresponding threaded hole through a fixing piece to realize the fixed connection of the fixing plate and the fixed sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910754565.1A CN112399066B (en) | 2019-08-15 | 2019-08-15 | Aviation reconnaissance load inclined distance focusing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910754565.1A CN112399066B (en) | 2019-08-15 | 2019-08-15 | Aviation reconnaissance load inclined distance focusing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112399066A true CN112399066A (en) | 2021-02-23 |
| CN112399066B CN112399066B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910754565.1A Active CN112399066B (en) | 2019-08-15 | 2019-08-15 | Aviation reconnaissance load inclined distance focusing device |
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| CN (1) | CN112399066B (en) |
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2019
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| CN106347704A (en) * | 2016-09-06 | 2017-01-25 | 深圳电航空技术有限公司 | Flight control testing device |
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| CN112399066B (en) | 2023-11-14 |
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