CN210833577U - Umbrella-shaped split type mechanical shaking device combined with laser gyroscope - Google Patents
Umbrella-shaped split type mechanical shaking device combined with laser gyroscope Download PDFInfo
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- CN210833577U CN210833577U CN201920942082.XU CN201920942082U CN210833577U CN 210833577 U CN210833577 U CN 210833577U CN 201920942082 U CN201920942082 U CN 201920942082U CN 210833577 U CN210833577 U CN 210833577U
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- umbrella
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- triangular rack
- shaking
- shaped split
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Abstract
The utility model discloses an umbrella-shaped split type mechanical shaking device combined with a laser gyroscope, which comprises a shaking unit and a laser gyroscope bearing unit; the laser gyro bearing unit comprises a triangular rack, a boss is formed at the center of the triangular rack, three first fixing blocks are arranged on the boss at uniform intervals, the boss is located at the center of the triangular rack and provided with a first opening, a second opening is formed at three corners of the triangular rack, the shaking unit comprises a first shaking rib and a second shaking rib which are sequentially connected along the circle center direction of a circular ring, and the shaking unit is matched with and fixed with the laser gyro bearing unit through a through hole. The utility model relates to an umbrella-shaped split type mechanical shake device of laser top combination has reduced the volume and the weight of system, and the cost is reduced has improved navigation measurement's precision simultaneously.
Description
Technical Field
The utility model belongs to the technical field of inertial navigation, concretely relates to umbrella-shaped split type mechanical shake device of laser top combination.
Background
At present, the application field of the inertial navigation technology is continuously expanding, so that the inertial navigation technology is more and more widely applied to the fields of military use, civil use, interstellar space navigation, scientific exploration and the like. From the structural aspect, the inertial navigation system generally comprises an inertial measurement device, a computer and a controller, wherein the inertial navigation device also comprises a gyro combination and an accelerometer, the traditional gyro combination mainly comprises three resonant cavities of the gyro, a control circuit and the like which are arranged along the X, Y, Z three directions, and is used for measuring the angular motion of an object in the three axial directions and transmitting the position and motion information to the navigation computer by matching with the accelerometer, thereby realizing the autonomous navigation without depending on external information and interference. The existing inertial navigation system has the problems of large volume and mass, high cost and low measurement precision.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a split type mechanical shake device of laser top combination umbelliform has solved and has had volume and quality great among the present inertial navigation system, the higher and not high problem of measurement accuracy of cost.
The technical proposal adopted by the utility model is that,
a laser gyro combined umbrella-shaped split type mechanical shaking device comprises a shaking unit and a laser gyro bearing unit;
the laser gyro bearing unit comprises a triangular rack, a boss is formed in the center of the triangular rack, three first fixing blocks are uniformly arranged on the boss at intervals, the first fixing blocks are used for fixing the laser gyro resonant cavity, a first opening is formed in the boss at the center of the triangular rack, second openings are formed in three corners of the triangular rack, and the first opening and the second opening are used for fixing the laser gyro bearing unit to the shaking unit;
the shaking unit comprises a circular ring, three third open holes are formed in the circular ring at equal intervals along the circumferential direction, the third open holes are used for fixing the shaking unit to an external system structure, each third open hole is sequentially connected with a first shaking rib and a second shaking rib along the direction of the circle center of the circular ring, and a fourth open hole and a second fixing block are arranged between the first shaking ribs and the second shaking ribs and in the position, corresponding to the first open hole and the second open hole, of the circle center of the circular ring respectively.
The utility model is also characterized in that,
the triangular rack is in a regular triangle shape, and the surface of the boss parallel to the triangular rack is also in a regular triangle shape.
The triangular stand forms a sinking platform at a position close to each corner of the triangular stand, the first fixing blocks are arranged on the side faces of the bosses, and the first fixing blocks and the sinking platforms are arranged at intervals.
Each first fixing block is respectively positioned between the triangular rack and the middle point of the corresponding side of the two triangles of the boss, and each first fixing block is arranged in a way of inclining to the triangular rack along the direction of the first opening.
The three first fixed blocks are arranged at an inclined angle which is intersected above the first opening along the radial extension line of the three first fixed blocks.
And each fixed block is matched with the screw hole through a screw to fix the laser gyro resonant cavity.
The screw being a nut
Locating pin
And a set screw with threads M3x 8.
The beneficial effects of the utility model are that, the utility model relates to an umbrella-shaped split type mechanical shake device of laser top combination through with the installation frame of three top, makes the mechanical shake integration to reduced loaded down with trivial details mechanical structure and the control unit, made rack overall structure become compacter, and then reduced the volume and the weight of system, the cost is reduced. Meanwhile, output information of the three-axis laser gyro combination is superposed and projected in an actual orthogonal space coordinate system through a space coordinate projection calculation system with a special angle (about 55 degrees), so that the information amount of each axial direction is improved, and the navigation precision is improved.
Drawings
Fig. 1 is a schematic structural view of an umbrella-shaped split mechanical shaking device combined with a laser gyroscope according to the present invention;
FIG. 2 is a schematic structural view of a triangular rack in the umbrella-shaped split mechanical shaking device of the laser gyroscope of the present invention;
FIG. 3 is a schematic top view of a triangular stand in the umbrella-shaped split mechanical shaking apparatus of the laser gyroscope of the present invention;
fig. 4 is a schematic structural overhead view of the umbrella-shaped split mechanical shaking device of the laser gyroscope of the present invention;
fig. 5 is a schematic structural diagram of a shaking unit in the umbrella-shaped split mechanical shaking device of the laser gyroscope assembly of the present invention.
In the figure, 1, a triangular rack, 2, a boss, 3, a first hole, 4, a first fixing block, 5, a screw hole, 6, a second hole, 7, a sinking platform, 8, a circular ring, 9, a third hole, 10, a second fixing block, 11, a fourth hole, 12, a second vibrating rib, 13, a first vibrating rib, 14, a screw and 15 are laser gyro resonant cavities.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to an umbrella-shaped split mechanical shaking device combined with a laser gyroscope, which comprises a shaking unit and a laser gyroscope bearing unit;
the laser gyro bearing unit comprises a triangular rack 1, a boss 2 is formed in the center of the triangular rack 1, three first fixing blocks 4 are uniformly arranged on the boss 2 at intervals, the first fixing blocks 4 are used for fixing a laser gyro resonant cavity 15, a first opening 3 is formed in the boss 2 at the center of the triangular rack 1, second openings 6 are formed in three corners of the triangular rack 1, and the first opening 3 and the second opening 6 are used for fixing the laser gyro bearing unit to the shaking unit;
the shaking unit comprises a circular ring 8, the circular ring 8 is provided with three third open holes 9 at even intervals along the circumferential direction, the third open holes 9 are used for fixing the shaking unit to an external system structure, each third open hole 9 is sequentially connected with a first shaking rib 13 and a second shaking rib 12 along the direction of the circle center of the circular ring 8, and a fourth open hole 11 and a second fixing block (10) are arranged between the first shaking ribs 13 and the second shaking ribs 12 and at the position of the circle center of the circular ring 8 corresponding to the first open hole 3 and the second open hole 6 respectively.
As shown in fig. 1 and 2, the bottom of the triangular rack 1 is regular triangle, the center of the top of the triangular rack 1 forms a boss 2, the boss 2 is umbrella-shaped, the whole triangular rack 1 is umbrella-shaped, three triangular sinking platforms 7 are formed between the three corners of the triangular rack 1 and the boss 2, the contact surface between the sinking platform 7 and the boss 2 is also triangle, the top surface of the boss is also triangle, three first fixing blocks 4 are arranged on the side surface of the boss 2 at intervals on the contact surface of the sinking platform 7 and the boss 2, the first fixing blocks 4 are used for fixing a laser gyro resonant cavity 15, a first opening 3 is formed in the center of a triangle on the upper surface of the boss 2, the first opening 3 is a through hole, second openings 6 are formed in three corners of the triangular rack 1, the second openings 6 are also through holes, and the first opening 3 and the second opening 6 are used for fixing the laser gyro bearing unit to the shaking unit;
as shown in fig. 3 and 4, the shaking unit includes a circular ring 8, three third openings 9 are uniformly arranged in the circumferential direction of the circular ring 8 at intervals, the third openings 9 are used for fixing the shaking unit to an external system structure, each third opening 9 is sequentially connected with a first shaking rib 13 and a second shaking rib 12 along the direction of the center of the circular ring 8, the three central ribs are feedback portions, the three outer ribs corresponding to the threaded holes are shaking driving portions, and corresponding portions are bonded with piezoelectric ceramics with corresponding characteristics. A fourth hole 11 and a second fixing block 10 are arranged between the first shaking rib 13 and the second shaking rib 12 and at the position of the center of the circular ring 8 corresponding to the first hole 3 and the second hole 6 respectively.
The shaking units are independently controlled by the circuit and are started and stopped with the three axial gyroscopes, and compared with the traditional inertial navigation combination, two groups of mechanical shaking units are reduced, so that the mechanical shaking control steps are reduced and optimized, the problem that three groups of instruments need frequency difference is solved, and the inconvenience caused by maintenance and replacement is reduced because the rack and the shaking units are designed in a split mode.
The triangular rack 1 is in a regular triangle shape, and the surface of the boss 2 parallel to the triangular rack 1 is also in a regular triangle shape. The redundant space of the rack is fully utilized through the arrangement of the triangle.
Triangle-shaped rack 1 forms heavy platform 7 in the position of being close to its three corners, and first fixed block 4 sets up in the side of boss 2, and first fixed block 4 arranges with heavy platform 2 interval. The volume of the system is greatly reduced through the umbrella-shaped design.
As shown in fig. 5, each of the first fixing blocks 4 is respectively located between the triangular rack 1 and the midpoint of the two corresponding sides of the triangle of the boss, and each of the first fixing blocks 4 is arranged obliquely to the triangular rack 1 in the direction along the first opening 3. The three first fixing blocks 4 are arranged at an inclination angle intersecting above the first opening 3 along a radial extension thereof. So that the three laser gyro cavities 15 after fixing are orthogonal in space to enhance the accuracy of measurement.
The fixed block 4 is provided with a screw hole 5, and each fixed block 4 is matched with the screw hole 5 through a screw 14 to fix the laser gyro resonant cavity 15. Wherein the screw 14 is a nut
The positioning pin is
And a set screw with threads M3x 8. The laser gyro resonant cavity is fixed on three end faces of the first fixed block through the positioning screws, so that the fixing is more reasonable and stable.
In summary, the umbrella-shaped split type mechanical shaking device combined with the laser gyroscope has the advantages that;
the volume is littleer: the laser gyro resonant cavity 15 is directly mounted and integrated on the rack, and the rack part is independent from the mechanical shaking part, so that the mechanical shaking units of all cavities are omitted, the circuit board mounting area is reassembled, high integration and unified control are realized, the redundant space of the rack is fully utilized, and the system volume is greatly reduced.
The weight is lighter: the mechanical shaking units of the cavities are omitted, the special installation angle of the mechanical shaking units can ensure the stability and reduce the size of the whole longitudinal space of the rack, and the weight of the system is reduced by more than 20% by reasonably arranging the through holes.
The precision is higher: the three-way gyro mounting surface of the umbrella-shaped triangular rack 1 is integrally processed, so that the high-precision tolerance requirement is ensured, and the mounting precision of the laser gyro resonant cavity 15 can be well ensured. The mechanical shaking units of the cavities are omitted, so that the intermediate assembly link of the system is shortened, errors related to the platform system are eliminated, and meanwhile, output information of the three-axis laser gyro combination is superposed and projected in an actual orthogonal space coordinate system through a space coordinate projection calculation system with a special angle (about 55 degrees), so that the information content of each axis is improved, and the navigation precision is improved.
The wiring is more excellent: the design limitation that the circuit board and the laser gyro resonant cavities 15 are arranged nearby is broken through, the principle of volume minimization is fully considered, the circuit boards of the three laser gyro resonant cavities 15 are highly integrated together by utilizing the redundant space of the rack, and wiring channels are designed, so that the circuit distribution is clear, and welding wires are easier to operate.
Claims (7)
1. An umbrella-shaped split type mechanical shaking device combined with a laser gyroscope is characterized by comprising a shaking unit and a laser gyroscope bearing unit;
the laser gyro bearing unit comprises a triangular rack (1), a boss (2) is formed in the center of the triangular rack (1), three first fixing blocks (4) are uniformly arranged on the boss (2) at intervals, the first fixing blocks (4) are used for fixing a laser gyro resonant cavity (15), a first opening (3) is formed in the boss (2) and located in the center of the triangular rack (1), second openings (6) are formed in three corners of the triangular rack (1), and the first opening (3) and the second opening (6) are used for fixing the laser gyro bearing unit to the shaking unit;
the shake unit includes ring (8), ring (8) are provided with three third trompil (9) along the even interval of circumference, third trompil (9) are used for being fixed in the external system structure with the shake unit, every third trompil (9) have connected gradually first shake muscle (13) and second shake muscle (12) along the centre of a circle direction of ring (8), be provided with fourth trompil (11) and second fixed block (10) corresponding respectively to first trompil (3) and second trompil (6) between first shake muscle (13) and second shake muscle (12) with the centre of a circle position of ring (8).
2. The umbrella-shaped split mechanical shaking device of the laser gyroscope combination according to claim 1, wherein the triangular rack (1) is a regular triangle, and the boss (2) is also arranged in a regular triangle on a plane parallel to the triangular rack (1).
3. The umbrella-shaped split mechanical shaking device of the laser gyroscope combination according to claim 2, wherein the triangular rack (1) forms a sinking platform (7) near each corner thereof, the first fixing blocks (4) are arranged on the side of the boss (2), and the first fixing blocks (4) and the sinking platforms (7) are arranged at intervals.
4. The umbrella-shaped split mechanical shaking device of claim 3, wherein each of the first fixing blocks (4) is respectively located between the triangular rack (1) and the midpoint of the two corresponding sides of the triangle of the boss (2), and each of the first fixing blocks (4) is arranged obliquely to the triangular rack (1) in the direction of the first opening (3).
5. The umbrella-shaped split mechanical shaking device of a laser gyroscope combination according to claim 4, wherein the three first fixed blocks (4) are arranged at an inclination angle intersecting above the first opening (3) along their radial extension lines.
6. The umbrella-shaped split type mechanical shaking device of the laser gyroscope combination according to claim 1, wherein the fixing blocks (4) are provided with screw holes (5), and each fixing block (4) is matched with the screw hole (5) through a screw (14) to fix the laser gyroscope resonant cavity (15).
7. The umbrella-shaped split mechanical shaking device of claim 6, wherein the screw (14) is a set screw with a nut diameter of 11x2, a set pin diameter of 6x11 and a thread of M3x 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920942082.XU CN210833577U (en) | 2019-06-21 | 2019-06-21 | Umbrella-shaped split type mechanical shaking device combined with laser gyroscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920942082.XU CN210833577U (en) | 2019-06-21 | 2019-06-21 | Umbrella-shaped split type mechanical shaking device combined with laser gyroscope |
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| CN210833577U true CN210833577U (en) | 2020-06-23 |
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| CN201920942082.XU Active CN210833577U (en) | 2019-06-21 | 2019-06-21 | Umbrella-shaped split type mechanical shaking device combined with laser gyroscope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595305A (en) * | 2020-11-25 | 2021-04-02 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Jitter mechanism for driving three-axis orthogonal laser gyroscope |
-
2019
- 2019-06-21 CN CN201920942082.XU patent/CN210833577U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595305A (en) * | 2020-11-25 | 2021-04-02 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Jitter mechanism for driving three-axis orthogonal laser gyroscope |
| CN112595305B (en) * | 2020-11-25 | 2023-05-09 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Shaking mechanism for driving triaxial orthogonal laser gyro |
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Effective date of registration: 20200819 Address after: Room 301, building 1, coffee Angel building, No.9, Gaoxin 2nd Road, hi tech Zone, Xi'an City, Shaanxi Province Patentee after: Huaxing Aerospace (Xi'an) measurement and Control Technology Co., Ltd Address before: 710077 G43F Xi'an Industrial Park, Xi'an, Shaanxi. Patentee before: XI'AN DEXUNWEI PHOTOELECTRIC MEASUREMENT AND CONTROL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20210115 Address after: 442000 No. 127, Huichuan village committee, Yuanyang Township People's government, Maojian District, Shiyan City, Hubei Province Patentee after: Huaxing Aerospace (Hubei) measurement and Control Technology Co.,Ltd. Address before: Room 301, building 1, coffee Angel building, garage, No.9, Gaoxin 2nd Road, high tech Zone, Xi'an City, Shaanxi Province, 710077 Patentee before: Huaxing Aerospace (Xi'an) measurement and Control Technology Co., Ltd |
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Effective date of registration: 20211216 Address after: 712000 a-93, No. 10301, floor 3, block F, airport international business center, airport new town, Xixian New District, Xi'an City, Shaanxi Province Patentee after: Huaxing Aerospace (Shaanxi) Technology Development Co.,Ltd. Address before: 442000 No. 127, Huichuan village committee, Yuanyang Township People's government, Maojian District, Shiyan City, Hubei Province Patentee before: Huaxing Aerospace (Hubei) measurement and Control Technology Co.,Ltd. |
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Effective date of registration: 20220608 Address after: 442012 No. 127, Huichuan village committee, Yuanyang Township People's government, Maojian District, Shiyan City, Hubei Province Patentee after: Huaxing Aerospace (Hubei) Aerospace Technology Co.,Ltd. Address before: 712000 a-93, No. 10301, floor 3, block F, airport international business center, airport new town, Xixian New District, Xi'an City, Shaanxi Province Patentee before: Huaxing Aerospace (Shaanxi) Technology Development Co.,Ltd. |
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