CN110733658A - kinds of visual axis stabilizing device - Google Patents
kinds of visual axis stabilizing device Download PDFInfo
- Publication number
- CN110733658A CN110733658A CN201911018794.3A CN201911018794A CN110733658A CN 110733658 A CN110733658 A CN 110733658A CN 201911018794 A CN201911018794 A CN 201911018794A CN 110733658 A CN110733658 A CN 110733658A
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- Prior art keywords
- rotating shaft
- reserved
- bottom plate
- supporting seat
- visual axis
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- 230000000007 visual effect Effects 0.000 title claims abstract description 20
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 29
- 239000003381 stabilizer Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims 2
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000013016 damping Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003019 stabilising effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
- B64D47/08—Arrangements of cameras
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses visual axis stabilizing devices, which comprise a bottom plate, a supporting seat, an amplifying frame and a rotating shaft, wherein when a system works, corresponding voltage signals are added to two ends of piezoelectric ceramics according to the motion speed of an external target to drive the piezoelectric ceramics to generate micro displacement, and the piezoelectric ceramics are amplified by the amplifying frame to drive the rotating shaft to rotate, so that a reflector above the rotating shaft achieves the purpose of synchronizing with the target.
Description
Technical Field
The invention relates to a sight axis stabilizing device used widely at in the fields of unmanned aerial vehicle technology, aerial surveying and mapping, aerial photography and the like.
Background
The existing visual axis stabilization mainly adopts passive vibration damping isolation and active stabilization compensation, the passive vibration damping isolation can only isolate high-frequency low-amplitude vibration, the error is large, the precision is difficult to improve, and the device is mainly used for an optical pod, the active stabilization compensation can realize higher precision control, but the cost is high, is difficult to push, in addition, a stable platform combining a moment gyro and a damping vibration damping is adopted in a traditional aerial photography device visual axis stabilizing device , the device is low in price and convenient to use, cannot carry out panoramic fast scanning shooting, is uncontrollable in precision, and has a fixed error of , and a high-precision stable system such as a strapdown stable platform is mainly used for a missile head in the military field, has high cost and is civil, and in the existing visual axis stabilizing technology, the invention of optical axis stabilizing device (application number is CN201710458371.8) can achieve the function of visual axis stabilization, but has a complex structure, more parts and large system assembly error.
Disclosure of Invention
The invention provides visual axis stabilizing devices aiming at the technical problems in the background technology.
The technical scheme is as follows:
kinds of visual axis stabilising arrangement, it includes bottom plate, supporting seat, enlarges frame, pivot, wherein:
the supporting seat is provided with a supporting seat reserved counter bore, the bottom plate is provided with a bottom plate reserved screw hole, and a bolt penetrates through the supporting seat reserved counter bore and the bottom plate reserved screw hole to fix the supporting seat on the bottom plate;
the two sides of the supporting seat are provided with a supporting seat reserved sink, the amplifying frame comprises an amplifying frame reserved sink at the upper part, a piezoelectric ceramic placing cavity at the middle part and a rotating shaft contact plate at the lower part, the bolt sequentially penetrates through the amplifying frame reserved sink and the supporting seat reserved sink and then is limited by a nut, and the amplifying frame is fixed relative to the supporting seat based on the structure and is not contacted with the bottom plate;
the two sides of the middle part of the amplifying frame are inwards concave elastic walls, the bottom of the piezoelectric ceramic placing cavity is provided with a supporting column, the top of the piezoelectric ceramic placing cavity is provided with an amplifying frame reserved screw hole, a fastening bolt penetrates through the amplifying frame reserved screw hole to transversely limit the piezoelectric ceramic in the piezoelectric ceramic placing cavity, and the two ends of the piezoelectric ceramic are abutted against the tops of the inwards concave elastic walls;
the rotating shaft is arranged in a reserved large through hole of a bottom plate on the bottom plate, a rotating shaft contact plate of the amplifying frame is tangent to the rotating shaft, a reserved rotating shaft groove is formed in the top of the rotating shaft, and the reflector is placed on the reserved rotating shaft groove and used for imaging;
after the piezoelectric ceramic is deformed when being electrified, the elastic wall of the amplifying frame is deformed, the contact plate of the rotating shaft is displaced along with the deformation, the rotating shaft is driven to rotate, and the reflecting mirror rotates along with the rotation to realize stable synchronization of the visual axis.
Preferably, the upper part, the middle part and the lower part of the amplifying frame are formed integrally, so that the structure is more compact, the assembly error is effectively avoided, and the system precision is improved.
Preferably, four corners of the bottom plate are provided with 4 through holes which are uniformly distributed.
Preferably, the counter bores reserved in the supporting seat and the screw holes reserved in the bottom plate are arranged in a matching mode in two groups.
Preferably, the two sides of the middle part of the amplifying frame are concave elastic walls, and the amplifying frame is specifically designed into two opposite V-shaped structures.
Preferably, the rotating shaft is a stepped rotating shaft and comprises a rotating shaft with a small bottom radius and a rotating shaft with a large top radius, and the rotating shaft with the small bottom radius is in tight fit with the reserved large through hole of the bottom plate through a bearing.
Preferably, the contact surface of the rotating shaft and the rotating shaft contact plate is of a ratchet structure, so that unidirectional driving is realized to prevent reversion.
The invention has the advantages of
1. The visual axis stabilizing device disclosed by the invention adopts the piezoelectric ceramic stacked actuator to realize friction transmission, and has the advantages of low cost, good controllability, higher precision and the like.
2. The visual axis stabilizing device has the advantages of compact structure, high processing precision, few assembling parts, low production cost and the like;
drawings
FIG. 1 is a schematic structural diagram of the present invention
FIG. 2 is a front view of the present invention
FIG. 3 is a top view of the present invention
FIG. 4 is a left side view of the present invention
FIG. 5 is a schematic view of an enlarged frame structure according to the present invention
The reference numbers in the figures illustrate:
1, reserving a through hole on a bottom plate; 2-a bottom plate; 3, a support seat; 4, reserving a sink groove on the supporting seat; 5, reserving counter bores on the supporting seat; 6, a rotating shaft; 7, reserving a groove on the rotating shaft; 8, an amplifying frame; 9, reserving screw holes on the amplifying frame; 10, reserving a sinking groove on the amplifying frame; 11-reserving screw holes on the bottom plate; 12, reserving a large through hole on the bottom plate; 13-piezoelectric ceramic placing cavity; 14-a shaft contact plate; 15-support column; 16-a fastening bolt; 17-piezoelectric ceramics.
Detailed Description
The invention is further illustrated in with reference to the following examples, but the scope of the invention is not limited thereto:
referring to fig. 1-5, kinds of visual axis stabilizers include a bottom plate 2, a support base 3, an enlarged frame 8, and a rotation shaft 6, wherein:
the supporting seat 3 is provided with a supporting seat reserved counter bore 5, the bottom plate 2 is provided with a bottom plate reserved screw hole 11, and a bolt penetrates through the supporting seat reserved counter bore 5 and the bottom plate reserved screw hole 11 to fix the supporting seat 3 on the bottom plate 2;
the two sides of the supporting seat 3 are provided with supporting seat reserved heavy grooves 4, the amplifying frame 8 comprises an amplifying frame reserved heavy groove 10 at the upper part, a piezoelectric ceramic placing cavity 13 at the middle part and a rotating shaft contact plate 14 at the lower part, a bolt sequentially penetrates through the amplifying frame reserved heavy groove 10 and the supporting seat reserved heavy groove 4 and then is limited by a nut, and the amplifying frame 8 is fixed relative to the supporting seat 3 based on the structure and is not contacted with the bottom plate 2;
the two sides of the middle part of the amplifying frame 8 are provided with concave elastic walls, the bottom of the piezoelectric ceramic placing cavity 13 is provided with a support column 15, the top of the piezoelectric ceramic placing cavity 13 is provided with an amplifying frame reserved screw hole 9, a fastening bolt 16 penetrates through the amplifying frame reserved screw hole 9 to transversely limit the piezoelectric ceramic 17 in the piezoelectric ceramic placing cavity 13, and the two ends of the piezoelectric ceramic 17 are abutted against the tops of the concave elastic walls;
the rotating shaft 6 is arranged in a reserved large through hole 12 of the bottom plate on the bottom plate 2, a rotating shaft contact plate 14 of the amplifying frame 8 is tangent to the rotating shaft 6, a reserved rotating shaft groove 7 is formed in the top of the rotating shaft 6, and the reflector is placed on the reserved rotating shaft groove 7 for imaging;
when the system works, according to the movement speed of an external target, corresponding voltage signals are added to the two ends of the piezoelectric ceramic 17 to drive the piezoelectric ceramic to generate micro displacement, the elastic wall of the amplifying frame 8 deforms along with the piezoelectric ceramic, the rotating shaft contact plate 14 generates amplifying displacement along with the piezoelectric ceramic, and the rotating shaft 6 is driven to rotate, so that the purpose of synchronizing the reflector above the rotating shaft with the target is achieved.
Preferably, the upper part, the middle part and the lower part of the amplifying frame 8 are formed integrally, so that the structure is more compact, the assembly error is effectively avoided, and the system precision is improved.
Preferably, four corners of the bottom plate 2 are provided with 4 through holes which are uniformly distributed.
Preferably, the supporting seat reserved counter bore 5 and the bottom plate reserved screw hole 11 are arranged in two groups in a matching mode.
Preferably, the two sides of the middle part of the amplifying frame 8 are concave elastic walls, and the amplifying frame is specifically designed into two opposite V-shaped structures.
Preferably, the rotating shaft 6 is a stepped rotating shaft and comprises a rotating shaft with a small bottom radius and a rotating shaft with a large top radius, and the rotating shaft with the small bottom radius is tightly matched with the large through hole 12 reserved in the bottom plate through a bearing, so that the verticality of the rotating shaft 6 is guaranteed.
Preferably, the contact surface of the rotating shaft 6 and the rotating shaft contact plate 14 is arranged in a ratchet structure, so that unidirectional driving is realized to prevent reversion.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (7)
1, visual axis stabilizing device, characterized in that it includes bottom plate (2), supporting seat (3), enlarge frame (8), pivot (6), wherein:
the supporting seat (3) is provided with a supporting seat reserved counter bore (5), the bottom plate (2) is provided with a bottom plate reserved screw hole (11), and a bolt penetrates through the supporting seat reserved counter bore (5) and the bottom plate reserved screw hole (11) to fix the supporting seat (3) on the bottom plate (2);
supporting seat reserved heavy grooves (4) are formed in two sides of the supporting seat (3), the amplifying frame (8) comprises an amplifying frame reserved heavy groove (10) in the upper portion, a piezoelectric ceramic placing cavity (13) in the middle portion and a rotating shaft contact plate (14) in the lower portion, and a bolt penetrates through the amplifying frame reserved heavy groove (10) and the supporting seat reserved heavy grooves (4) in sequence and then is limited by a nut;
the two sides of the middle part of the amplifying frame (8) are inwards concave elastic walls, the bottom of the piezoelectric ceramic placing cavity (13) is provided with a supporting column (15), the top of the piezoelectric ceramic placing cavity (13) is provided with an amplifying frame reserved screw hole (9), a fastening bolt (16) penetrates through the amplifying frame reserved screw hole (9) to transversely limit the piezoelectric ceramic (17) in the piezoelectric ceramic placing cavity (13), and the two ends of the piezoelectric ceramic (17) are abutted against the tops of the inwards concave elastic walls;
the rotating shaft (6) is arranged in a reserved large through hole (12) of the bottom plate on the bottom plate (2), a rotating shaft contact plate (14) of the amplifying frame (8) is tangent to the rotating shaft (6), and a reserved rotating shaft groove (7) is formed in the top of the rotating shaft (6).
2. The visual axis stabilizing device according to claim 1, wherein the upper, middle and lower portions of the magnifying glass (8) are integrally formed.
3. kinds of visual axis stabilizer, according to claim 1, characterized in that, the four corners of the bottom plate (2) are equipped with 4 through holes, and they are distributed evenly.
4. The kinds of visual axis stabilizer of claim 1, wherein the support seat pre-bored hole (5) and the bottom plate pre-threaded hole (11) are arranged in two sets in a matching way.
5. The kinds of visual axis stabilizer of claim 1, wherein the two sides of the middle part of the magnifying glass (8) are concave elastic walls, specifically designed as two pairs of V-shaped reverse structures.
6. The kinds of visual axis stabilizing device of claim 1, wherein the rotating shaft (6) is a stepped rotating shaft, comprising a rotating shaft with a small bottom radius and a rotating shaft with a large top radius, and the rotating shaft with the small bottom radius is tightly matched with the reserved large through hole (12) of the bottom plate through a bearing.
7. A visual axis stabilizing device as claimed in claim 1, wherein the contact surface of the rotating shaft (6) and the rotating shaft contact plate (14) is provided with a ratchet structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911018794.3A CN110733658A (en) | 2019-10-24 | 2019-10-24 | kinds of visual axis stabilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911018794.3A CN110733658A (en) | 2019-10-24 | 2019-10-24 | kinds of visual axis stabilizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110733658A true CN110733658A (en) | 2020-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911018794.3A Pending CN110733658A (en) | 2019-10-24 | 2019-10-24 | kinds of visual axis stabilizing device |
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| Country | Link |
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| CN (1) | CN110733658A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526785A (en) * | 2016-12-27 | 2017-03-22 | 西安交通大学 | Low-height biaxial deflection device having deflection axes intersected on surface of reflector and method |
| CN107176306A (en) * | 2017-06-16 | 2017-09-19 | 重庆大学 | A kind of optical axis stable platform |
| CN109951100A (en) * | 2019-03-25 | 2019-06-28 | 中国科学院长春光学精密机械与物理研究所 | A kind of big travel displacement driving device and its control method |
-
2019
- 2019-10-24 CN CN201911018794.3A patent/CN110733658A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526785A (en) * | 2016-12-27 | 2017-03-22 | 西安交通大学 | Low-height biaxial deflection device having deflection axes intersected on surface of reflector and method |
| CN107176306A (en) * | 2017-06-16 | 2017-09-19 | 重庆大学 | A kind of optical axis stable platform |
| CN109951100A (en) * | 2019-03-25 | 2019-06-28 | 中国科学院长春光学精密机械与物理研究所 | A kind of big travel displacement driving device and its control method |
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Application publication date: 20200131 |