CN219414099U - Integrated support and assembly of fiber optic gyroscope and accelerometer - Google Patents
Integrated support and assembly of fiber optic gyroscope and accelerometer Download PDFInfo
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- CN219414099U CN219414099U CN202320298528.6U CN202320298528U CN219414099U CN 219414099 U CN219414099 U CN 219414099U CN 202320298528 U CN202320298528 U CN 202320298528U CN 219414099 U CN219414099 U CN 219414099U
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Abstract
The utility model discloses an integrated bracket and an integrated assembly of an optical fiber gyroscope and an accelerometer, which comprise a ring framework, wherein a circular installation groove is formed in the ring framework, a positioning ring is coaxially arranged in the installation groove, a coil groove is formed between the positioning ring and the side wall of the installation groove, and the coil groove is used for installing an optical fiber coil; the locating ring is coaxially provided with a cavity, and the cavity of the locating ring is used for installing the accelerometer. The optical fiber coil and the accelerometer are positioned simultaneously through the annular framework, so that the coaxiality of the optical fiber coil and the accelerometer can be well ensured, the installation position of the optical fiber coil and the accelerometer is designed integrally, the integration degree is high, two independent sensors of the optical fiber coil and the accelerometer form a unified assembly whole, and the optical fiber coil and the accelerometer are convenient to assemble integrally and use no matter in single-axis inertial navigation or multi-axis inertial navigation during the assembly of inertial navigation equipment.
Description
Technical Field
The utility model relates to the technical field of inertial navigation equipment, in particular to an integrated bracket and an integrated assembly of a fiber optic gyroscope and an accelerometer.
Background
The quartz flexible accelerometer and the fiber optic gyroscope are two high-precision sensors widely applied to navigation systems, are used for measuring carrier acceleration and angular velocity information, and are widely applied to the fields of aviation, aerospace, ships, weapons, petroleum and the like.
In the prior art, a quartz flexible accelerometer and a fiber optic gyroscope are used as independent sensors, only angular velocity or acceleration can be output independently, the angular velocity or acceleration inertial sensors are combined by adopting an independent assembly method, the conventional assembly mode is that the accelerometer is directly installed at the inner hole position of the fiber optic gyroscope and is fixed on an integral bracket for installing the fiber optic gyroscope after passing through the inner hole of the fiber optic gyroscope, and due to the lack of a related structure for simultaneously positioning the fiber optic gyroscope and the accelerometer, the two sensors are independently installed, the installation errors of the two sensors are difficult to ensure, so that coaxiality is difficult to ensure, accuracy is seriously affected, meanwhile, the two sensors are independently assembled during assembly, the integration degree is lower, a unified whole is difficult to form, the integration degree is lower, and the miniaturization and integration of the inertial combination of various sensors are seriously restricted.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to solve the technical problems that: the integrated bracket and the assembly of the fiber optic gyroscope and the accelerometer solve the problems that the coaxiality is difficult to ensure and the integration degree is low due to independent assembly in the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the integrated support of the fiber-optic gyroscope and the accelerometer comprises a ring framework, wherein a circular installation groove is formed in the ring framework, a positioning ring is coaxially arranged in the installation groove, a coil groove is formed between the positioning ring and the side wall of the installation groove, and the coil groove is used for installing a fiber-optic coil; the locating ring is coaxially provided with a cavity, and the cavity of the locating ring is used for installing the accelerometer.
As optimization, the positioning ring and the ring framework are integrally manufactured.
As optimization, the outer side wall of the positioning ring is connected with the inner hole wall of the optical fiber coil in a fitting mode, and the inner side wall of the positioning ring is connected with the outer wall of the accelerometer in a fitting mode.
As optimization, the plane of the barrel bottom of the positioning ring and the plane of the groove bottom of the mounting groove are the same plane.
As optimization, the positioning ring is higher than the mounting groove, a tray is sleeved outside the positioning ring, the ring framework is provided with a turned-over edge which is turned outwards, and the tray is tightly attached to the turned-over edge; and one side of the tray, which is away from the optical fiber coil, is provided with a Y waveguide mounting bracket and a coupler mounting bracket which are respectively used for mounting the Y waveguide and the coupler.
As an optimization, the accelerometer is a quartz accelerometer.
Based on the integrated bracket, the utility model also provides an integrated component of the fiber-optic gyroscope and the accelerometer, which comprises a fiber-optic coil, an accelerometer, a Y waveguide, a coupler and the integrated bracket of the fiber-optic gyroscope and the accelerometer, wherein the fiber-optic coil is arranged in the mounting groove, the hole wall of the inner hole of the fiber-optic coil is attached to the outer side wall of the positioning ring, and one side end face of the fiber-optic coil is attached to the bottom of the mounting groove; the accelerometer is fixedly arranged in the cavity of the positioning ring, the outer wall of the accelerometer is attached to the cavity wall of the cavity of the positioning ring, and one side end face of the accelerometer is attached to the barrel bottom of the positioning ring; a tray is fixedly sleeved on the outer side wall of the positioning ring, or the tray is sleeved on the outer side wall of the positioning ring and fixedly connected with the ring framework, and the end face, close to the optical fiber coil, of the tray is attached to the end face of the optical fiber coil; the Y waveguide and the coupler are respectively arranged on a Y waveguide mounting bracket and a coupler mounting bracket which are arranged on one side of the tray, which is far away from the optical fiber coil, wherein two optical fiber output ends of the Y waveguide are connected with two optical fiber leading-out ends of the optical fiber coil, and one end of the coupler is connected with an optical fiber input end of the Y waveguide.
Compared with the prior art, the application has the following beneficial effects:
the optical fiber coil and the accelerometer are positioned through the annular framework, and the optical fiber coil mounting groove on the annular framework and the positioning ring for mounting the accelerometer are fixed and coaxial, so that the coaxiality of the optical fiber coil and the accelerometer can be well ensured, the optical fiber coil and the accelerometer are integrally designed, the optical fiber coil and the accelerometer are further fixed through the tray, the mounting positions of other light path accessories are provided, the integration degree is high, two independent sensors of the optical fiber coil and the accelerometer form a unified assembly whole, and the optical fiber coil and the accelerometer are convenient to integrally assemble no matter in single-axis inertial navigation or multi-axis inertial navigation during the assembly of inertial navigation equipment, and are convenient to use.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
in the figure, 1 ring skeleton, 2 mounting groove, 3 fiber coil, 4 holding ring, 5 accelerometer, 6 tray, 7Y waveguide, 8 coupler.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The specific implementation method comprises the following steps: with reference to figures 1-2 of the drawings,
the integrated bracket of the fiber optic gyroscope and the accelerometer comprises a ring framework 1, wherein in the embodiment, the whole ring framework 1 is cylindrical, and a circular mounting groove 2 for mounting a fiber optic coil 3 is arranged on the ring framework 1; a positioning ring 4 with a cavity is coaxially arranged in the mounting groove 2, the cavity of the positioning ring 4 is used for mounting the quartz accelerometer 5, of course, the structure of the positioning ring 4 is not limited to a cylindrical structure, and a plurality of independent guide posts distributed in a circular shape or other forms of guide structures can be adopted, so long as the distribution center of the guide posts is coaxial with the mounting groove 2, so that the coaxiality of the accelerometer 5 and the optical fiber coil 3 when being respectively mounted in the mounting groove 2 and the positioning ring 4 is ensured.
In particular, the positioning ring 4 is integrally formed with the ring frame 1, which is convenient to manufacture and ensures the coaxiality of the positioning ring 4 and the mounting groove 2 more easily. Naturally, the present utility model is not limited to this, and the housing of the accelerometer 5 may be directly manufactured to a specification matching with the inner hole of the optical fiber coil 3, so that the optical fiber ring is directly and tightly sleeved on the housing of the accelerometer 5, so as to ensure the coaxiality of the two, and then the optical fiber ring is integrally installed in the installation groove 2. During specific installation, the lateral wall of holding ring 4 is laminated with the hole pore wall of optical fiber coil 3 and is connected, the inside wall of holding ring 4 is laminated with accelerometer 5's outer wall and is connected, through laminating installation or closely installation like this, guarantees axiality and prevents that the sensor is not hard up. Meanwhile, the plane of the barrel bottom of the positioning ring 4 and the plane of the groove bottom of the mounting groove 2 are the same plane, so that the mounting reference surfaces of the accelerometer 5 and the optical fiber coil 3 are uniform reference surfaces, the synchronism of the accelerometer is improved when the accelerometer is heated or vibrated, and the subsequent data processing is convenient.
The locating ring 4 is higher than the mounting groove 2, a tray 6 is sleeved outside the locating ring 4, and the end face of the tray 6, which is close to the optical fiber coil 3, can be attached to the end face of the optical fiber coil 3. A Y waveguide 7 mounting bracket and a coupler 8 mounting bracket are arranged on one side of the tray 6 away from the optical fiber coil 3 and are respectively used for mounting the Y waveguide 7 and the coupler 8. Specifically, a flange with a flange structure is formed on the ring frame 1 in an extending manner, a screw hole is formed on the flange, and a connecting structure and a flange are fixedly connected to the corresponding tray 6, so that the tray 6 compresses the optical fiber coil 3, looseness of the optical fiber coil is prevented, the accelerometer 5 and the optical fiber coil 3 are used as an integral assembly, and the optical fiber coil 3 can be compressed by the tray 6 and the positioning ring 4 in a tightly matched connection or a threaded matched connection mode. In addition, a structure for pressing or fixing the accelerometer 5 can be further arranged on the tray 6, for example, a flanging structure is formed by extending upwards and bending inwards at an inner hole of the tray 6, and when the lower end face of the tray 6 presses the optical fiber coil 3, the flanging structure presses the edge of the upper end face of the accelerometer 5, so that the accelerometer 5 and the optical fiber coil 3 can form a unified assembly better, and the accelerometer and the optical fiber coil 3 can be conveniently integrally installed in inertial navigation equipment. The embodiment is described in terms of an assembly mode of a single-axis inertial navigation device, and for a multi-axis sensor, only a plurality of groups of the present utility model need to be installed at installation positions corresponding to each axis.
Based on the integrated bracket, the utility model also provides an optical fiber gyroscope and accelerometer integrated assembly, which comprises an optical fiber coil 3, an accelerometer 5, a Y waveguide 7, a coupler 8 and the optical fiber gyroscope and accelerometer integrated bracket, wherein the optical fiber coil 3 is arranged in the mounting groove 2, the hole wall of the inner hole of the optical fiber coil 3 is attached to the outer side wall of the positioning ring 4, and one side end surface of the optical fiber coil is attached to the groove bottom of the mounting groove 2; the accelerometer 5 is fixedly arranged in the cavity of the positioning ring 4, the outer wall of the accelerometer 5 is attached to the cavity wall of the cavity of the positioning ring 4, and one side end face of the accelerometer 5 is attached to the barrel bottom of the positioning ring 4; a tray 6 is fixedly sleeved on the outer side wall of the positioning ring 4, or the tray 6 is sleeved on the outer side wall of the positioning ring 4 and fixedly connected with the ring framework 1, and the end face, close to the optical fiber coil 3, of the tray 6 is attached to the end face of the optical fiber coil 3; the Y waveguide 7 and the coupler 8 are respectively arranged on a Y waveguide 7 mounting bracket and a coupler 8 mounting bracket which are arranged on one side of the tray 6, which is far away from the optical fiber coil 3, wherein two optical fiber output ends of the Y waveguide 7 are connected with two optical fiber leading-out ends of the optical fiber coil 3, and one end of the coupler 8 is connected with an optical fiber input end of the Y waveguide 7.
The optical fiber coil and the accelerometer are positioned through the annular framework, and the optical fiber coil mounting groove on the annular framework and the positioning ring for mounting the accelerometer are fixed and coaxial, so that the coaxiality of the optical fiber coil and the accelerometer can be well ensured, the optical fiber coil and the accelerometer are integrally designed, the optical fiber coil and the accelerometer are further fixed through the tray, the mounting positions of other light path accessories are provided, the integration degree is high, two independent sensors of the optical fiber coil and the accelerometer form a unified assembly whole, and the optical fiber coil and the accelerometer are convenient to integrally assemble no matter in single-axis inertial navigation or multi-axis inertial navigation during the assembly of inertial navigation equipment, and are convenient to use.
While embodiments of the present utility model have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents, and thus the embodiments of the utility model are to be considered illustrative of the utility model and not limited in any way.
Claims (6)
1. The integrated bracket is characterized by comprising a ring framework, wherein a circular installation groove is formed in the ring framework, a positioning ring is coaxially arranged in the installation groove, a coil groove is formed between the positioning ring and the side wall of the installation groove, and the coil groove is used for installing an optical fiber coil; the locating ring is coaxially provided with a cavity, and the cavity of the locating ring is used for installing the accelerometer.
2. The integrated support for a fiber optic gyroscope and accelerometer of claim 1, wherein the retaining ring is integrally formed with the ring frame.
3. The integrated support for the fiber-optic gyroscope and the accelerometer according to claim 1, wherein the outer side wall of the positioning ring is in fit connection with the inner hole wall of the fiber-optic coil, and the inner side wall of the positioning ring is in fit connection with the outer wall of the accelerometer.
4. The integrated support of the fiber optic gyroscope and the accelerometer according to claim 1, wherein the positioning ring is higher than the mounting groove, a tray is sleeved outside the positioning ring, the ring framework is provided with a turned-over edge which is turned outwards, and the tray is tightly attached to the turned-over edge; and one side of the tray, which is away from the optical fiber coil, is provided with a Y waveguide mounting bracket and a coupler mounting bracket which are respectively used for mounting the Y waveguide and the coupler.
5. The integrated support for a fiber optic gyroscope and accelerometer of claim 1, wherein the accelerometer is a quartz accelerometer.
6. An integrated assembly of a fiber optic gyroscope and an accelerometer, comprising a fiber optic coil, an accelerometer, a Y waveguide, a coupler and the integrated bracket of the fiber optic gyroscope and the accelerometer as claimed in any one of claims 1 to 5, wherein the fiber optic coil is arranged in a coil groove, the wall of an inner hole of the fiber optic coil is attached to the outer side wall of a positioning ring, and one side end face of the fiber optic coil is attached to the bottom of a mounting groove; the accelerometer is fixedly arranged in the cavity of the positioning ring, the outer wall of the accelerometer is attached to the cavity wall of the cavity of the positioning ring, and one side end face of the accelerometer is attached to the barrel bottom of the positioning ring; a tray is fixedly sleeved on the outer side wall of the positioning ring, or the tray is sleeved on the outer side wall of the positioning ring and fixedly connected with the ring framework, and the end face, close to the optical fiber coil, of the tray is attached to the end face of the optical fiber coil; the Y waveguide and the coupler are respectively arranged on a Y waveguide mounting bracket and a coupler mounting bracket which are arranged on one side of the tray, which is far away from the optical fiber coil, wherein two optical fiber output ends of the Y waveguide are connected with two optical fiber leading-out ends of the optical fiber coil, and one end of the coupler is connected with an optical fiber input end of the Y waveguide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320298528.6U CN219414099U (en) | 2023-02-23 | 2023-02-23 | Integrated support and assembly of fiber optic gyroscope and accelerometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320298528.6U CN219414099U (en) | 2023-02-23 | 2023-02-23 | Integrated support and assembly of fiber optic gyroscope and accelerometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219414099U true CN219414099U (en) | 2023-07-25 |
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ID=87205300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320298528.6U Active CN219414099U (en) | 2023-02-23 | 2023-02-23 | Integrated support and assembly of fiber optic gyroscope and accelerometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219414099U (en) |
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2023
- 2023-02-23 CN CN202320298528.6U patent/CN219414099U/en active Active
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