CN114295148B - Compact gyroscope dynamic calibration table - Google Patents
Compact gyroscope dynamic calibration table Download PDFInfo
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- CN114295148B CN114295148B CN202111611424.8A CN202111611424A CN114295148B CN 114295148 B CN114295148 B CN 114295148B CN 202111611424 A CN202111611424 A CN 202111611424A CN 114295148 B CN114295148 B CN 114295148B
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Abstract
The invention discloses a compact gyroscope dynamic calibration table, which comprises a base, wherein the base is fixedly connected with an inner bearing support through a bolt, the inner bearing support is fixedly connected with a support bearing assembly through a locking nut, the base is fixedly connected with a stator of a motor through a bolt, a rotor of the motor is fixedly connected with a motor rotor seat through a bolt, the upper end of the motor rotor seat is fixedly connected with a table top transition piece through a bolt, the upper end of the table top transition piece is fixedly connected with a table top through a bolt, and the lower end of the table top is provided with an encoder. The compact electric gyroscope calibration table is mainly used for checking and measuring dynamic characteristics of the angular rate gyroscope, has the advantages of compact structure and portability, and can be suitable for vibration and impact tests, and the performance is stable and reliable.
Description
Technical Field
The invention relates to the technical field of inertial navigation equipment detection, in particular to a compact gyroscope dynamic calibration table.
Background
The gyroscope is used as an inertial measurement device, is a core component of an inertial navigation, inertial guidance and inertial measurement system, and is widely applied to the military and civil fields. The dynamic characteristic of the gyroscope is an important index for measuring the quality of the gyroscope, when the angular velocity is changed, namely, when the angular velocity is measured, the gyroscope is used for dynamically, and when the acceleration a is measured, the accelerometer is used for measuring the angular velocity, the best method for drawing the dynamic characteristic of the gyroscope and the accelerometer is to obtain the input/output transfer functions of the gyroscope and the accelerometer, the main acquisition method is a time domain method and a frequency domain method at present, the method is realized by testing through an angular vibration table, and the current angular vibration table has the defects of large volume, inconvenience in portability, inconvenience in operation and the like, so that the development of a more compact gyroscope calibration table which is more convenient to use is urgently needed.
Disclosure of Invention
Aiming at the technical problems in the related art, the invention provides a compact gyroscope dynamic calibration table which can solve the problems.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
The utility model provides a compact top developments calibration platform, includes the base, the base is supported in through bolt fixedly connected with bearing, the bearing is supported through lock nut fixedly connected with support bearing assembly in the bearing, the base passes through the stator of bolt fixedly connected with motor, the rotor of motor passes through bolt fixedly connected with motor rotor seat, motor rotor seat upper end passes through bolt fixedly connected with mesa transition piece, mesa transition piece upper end passes through bolt fixedly connected with mesa, the mesa lower extreme is equipped with the encoder.
Further, the support bearing assembly includes a pair of back-to-back mounted angular contact ball bearings.
Further, the inner ring of the support bearing assembly is located on the step of the inner support outer wall of the bearing, and the outer ring of the support bearing assembly is pressed on the motor rotor seat through the table top transition piece.
Further, an encoder locking piece is arranged at the center of the table top, and the encoder is connected with the table top through the encoder locking piece.
Further, the motor is located in an inner space formed by the table top, the base and the motor rotor seat.
Further, the encoder is located in an interior cavity supported within the bearing.
Further, the lower end of the bearing inner support is provided with a bottom cover plate.
The invention has the beneficial effects that: the compact electric gyroscope calibration table is mainly used for checking and measuring dynamic characteristics of the angular rate gyroscope, has the advantages of compact structure and portability, and can be suitable for vibration and impact tests, and the performance is stable and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a compact gyroscope dynamic calibration station according to an embodiment of the invention.
In the figure: 1. a motor rotor seat; 2. a mesa transition piece; 3. an encoder; 4. an encoder lock; 5. a support bearing assembly; 6. a table top; 7. a motor; 8. a base; 9. a bottom cover plate; 10. a bearing inner support; 11. and (5) locking the nut.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
As shown in fig. 1, the dynamic calibration stand for a compact gyroscope according to the embodiment of the invention comprises a base 8, wherein the base 8 is fixedly connected with an inner bearing support 10 through bolts, the inner bearing support 10 is fixedly connected with a support bearing assembly 5 through a locking nut 11, the base 8 is fixedly connected with a stator of a motor 7 through bolts, a rotor of the motor 7 is fixedly connected with a motor rotor seat 1 through bolts, the upper end of the motor rotor seat 1 is fixedly connected with a table top transition piece 2 through bolts, the upper end of the table top transition piece 2 is fixedly connected with a table top 6 through bolts, and the lower end of the table top 6 is provided with an encoder 3.
In the present invention, the inner support 10 of the bearing is fixed to the base 8 by bolts, and the inner ring of the support bearing assembly 5 is seated on the step of the inner support 10 of the bearing and is fixed by the lock nut 11. The outer ring of the support bearing assembly 5 is pressed against the motor rotor seat 1 by the table top transition piece 2. The rotor of the motor 7 is fastened with the motor rotor seat 1 through bolts, and the stator of the motor 7 is fixed on the base 8 through bolts. Wherein the support bearing assembly 5 comprises a pair of angular contact ball bearings mounted back-to-back, i.e. two thicker faces of the angular contact ball bearings are close together, the advantages of the use of the angular contact ball bearings back-to-back are: the load lines of the back-to-back paired bearings are separated from the bearing shaft, and the load center is located outside the bearing center line when the back-to-back paired bearings are installed. The span of the force action point is larger, so that the rigidity of the cantilever end is larger, when the shaft is heated and stretched, the bearing play is increased, and the bearing cannot be blocked and damaged; the back-to-back mounted bearings provide a relatively rigid bearing arrangement and are able to withstand overturning moments. Can bear axial loads acting in two directions; the component force of the back-to-back right bearing is the upper right (lower right), and the component force of the left bearing is the upper left (lower left), so that the two bearings are separated, and the axial force in two directions can be resisted without jumping; the back-to-back installation can bear 2 times of radial component force, the intersection point of the two component force is relatively close, the disturbance degree requirement of the shaft is relatively low, and the shaft is not easy to deform under force. The motor is arranged on the periphery of the bearing, namely in an inner space formed by the table top 6, the base 8 and the motor rotor seat 1, so that the volume of the device is greatly reduced, the device can be used as portable test calibration equipment, and meanwhile, the compact structure ensures the quick start and quick stop advantages of the gyro calibration table.
The table top transition piece 2 is fixed on the motor rotor seat 1 by bolts, and the table top 6 is fixed on the table top transition piece by bolts. An encoder lock 4 is arranged in the center of the table top for connecting the encoder 3 and the table top 6 together for feeding back the position status of the load in real time.
When the angular velocity gyroscope is particularly used, the angular velocity gyroscope is fixed on the table top 6, the motor 7 is started, the motor rotor seat 1, the table top transition piece 2 and the table top 6 rotate together with the rotor of the motor 7 as a whole, and at the moment, the angular velocity gyroscope can be tested by the testing system.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (3)
1. The utility model provides a compact top developments calibration platform, its characterized in that, including base (8), base (8) are through bolt fixedly connected with bearing inner support (10), bearing inner support (10) are through lock nut (11) fixedly connected with support bearing assembly (5), base (8) are through the stator of bolt fixedly connected with motor (7), the rotor of motor (7) is through bolt fixedly connected with motor rotor seat (1), motor rotor seat (1) upper end is through bolt fixedly connected with mesa transition piece (2), mesa transition piece (2) upper end is through bolt fixedly connected with mesa (6), mesa (6) lower extreme is equipped with encoder (3), support bearing assembly (5) are including a pair of angular contact ball bearing of back-to-back installation, the inner circle of support bearing assembly (5) is located on the step of bearing inner support (10) outer wall, the outer lane of support bearing assembly (5) is compressed tightly through mesa transition piece (2) motor rotor seat (1), motor (7) are located motor (6) rotor seat (8) the inner chamber (1) is located in the formation encoder (10).
2. The compact gyroscope dynamic calibration stand of claim 1, wherein an encoder locking member (4) is provided in the center of the table top (6), and the encoder (3) is connected to the table top (6) through the encoder locking member (4).
3. The dynamic calibration stand of a compact gyroscope according to claim 1, wherein the lower end of the bearing inner support (10) is provided with a bottom cover plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111611424.8A CN114295148B (en) | 2021-12-27 | 2021-12-27 | Compact gyroscope dynamic calibration table |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111611424.8A CN114295148B (en) | 2021-12-27 | 2021-12-27 | Compact gyroscope dynamic calibration table |
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| Publication Number | Publication Date |
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| CN114295148A CN114295148A (en) | 2022-04-08 |
| CN114295148B true CN114295148B (en) | 2024-06-21 |
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| CN118482742B (en) * | 2024-07-12 | 2024-09-20 | 武汉环达电子科技有限公司 | Measurement and control device for angular velocity of gyroscope |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536998A (en) * | 2020-05-25 | 2020-08-14 | 哈尔滨理工大学 | Two-shaft separation type gyroscope calibration device adopting magnetoelectric encoder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2325612B1 (en) * | 2009-11-13 | 2016-01-27 | SICK Sensors Ltd. | Method for calibrating a rotational angle sensor by means of a laser gyroscope |
| CN201653429U (en) * | 2010-04-29 | 2010-11-24 | 北京航天控制仪器研究所 | MEMS gyro test system with double-shaft turntable |
| JP5346910B2 (en) * | 2010-11-24 | 2013-11-20 | 株式会社ソニー・コンピュータエンタテインメント | CALIBRATION DEVICE, CALIBRATION METHOD, AND ELECTRONIC DEVICE MANUFACTURING METHOD |
| US9857198B2 (en) * | 2015-02-04 | 2018-01-02 | Bae Systems Information And Electronic Systems Integration Inc. | Apparatus and method for inertial sensor calibration |
| KR102310907B1 (en) * | 2019-12-30 | 2021-10-07 | 주식회사 한화 | Variable multi-axis fixing jig for calibration test of gyro sensor |
| CN212254123U (en) * | 2020-09-23 | 2020-12-29 | 九江精密测试技术研究所 | Manual inertial navigation test rotary table |
| CN113739820A (en) * | 2021-08-13 | 2021-12-03 | 九江冠成仿真技术有限公司 | Single-shaft sudden stop turntable based on gyroscope characteristics |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536998A (en) * | 2020-05-25 | 2020-08-14 | 哈尔滨理工大学 | Two-shaft separation type gyroscope calibration device adopting magnetoelectric encoder |
Non-Patent Citations (1)
| Title |
|---|
| 小型化MEMS陀螺仪标定平台的设计;侯为萍;孙敏;;电子工业专用设备;20150220(第02期);11-13 * |
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