Shell structure for optical fiber gyroscope

Abstract

The utility model discloses a shell structure for an optical fiber gyroscope, which comprises an optical fiber gyroscope shell, a shell cover is mounted at the upper end of the optical fiber gyroscope shell through bolts, a bottom plate is welded at the bottom of the optical fiber gyroscope shell, a mounting seat is connected to the bottom of the bottom plate through bolts, and a sealing structure is mounted between the optical fiber gyroscope shell and the shell cover. According to the utility model, the sealing structure is arranged between the optical fiber gyroscope shell and the shell cover, when the shell cover is arranged on the optical fiber gyroscope shell, the sealing ring extrudes the convex ring plate, and then the sealing ring extends into the convex groove under the elastic action of the spring, so that the sealing performance between the optical fiber gyroscope shell and the shell cover is better; the influence of the external environment on the internal optical fiber gyroscope is reduced, the stability and reliability of the optical fiber gyroscope are improved, and the shell and the shell cover of the optical fiber gyroscope are further fastened through the first flange and the second flange.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber gyroscopes, in particular to a shell structure for optical fiber gyroscopes. Background Art

[0002] A fiber optic gyroscope is a fiber optic angular velocity sensor. Existing fiber optic gyroscopes are installed in a housing for protection to reduce the impact of the external environment on the fiber optic gyroscope.

[0003] The prior art discloses a patent document with a publication number of CN214893332U. The technical solution disclosed in the patent document is as follows: a miniature fiber optic gyroscope, comprising a connecting base and a fiber optic gyroscope, wherein the top center end of the connecting base is bolted to a connecting plate, the top center end of the connecting plate is provided with a fiber optic gyroscope housing, one side of the fiber optic gyroscope housing is fixedly connected with a connecting plug, an X-axis direction of the connecting base is provided with an X-torque motor shaft, a Y-axis direction of the connecting base is provided with a Y-torque motor shaft, and a Z-axis direction of the connecting base is provided with a Z-torque motor shaft, a fiber optic gyroscope is provided inside the fiber optic gyroscope housing, an A / D converter and a D / A converter are provided inside the fiber optic gyroscope, one end of the A / D converter is connected to a detector, and one side of the D / A converter is connected to a Y waveguide. The device has a simple structure, a novel design, a simple structure and convenient detection.

[0004] The above technical solution sets the fiber optic gyroscope in a fiber optic gyroscope housing, but the fiber optic gyroscope housing has a simple structure and a general sealing effect, so that the accuracy and stability of the fiber optic gyroscope are affected by various environmental factors, resulting in the accuracy of the fiber optic gyroscope being affected. Utility Model Content

[0005] The purpose of the utility model is to provide a housing structure for a fiber optic gyroscope to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shell structure for a fiber optic gyroscope, comprising a fiber optic gyroscope housing, a shell cover is bolted to the upper end of the fiber optic gyroscope housing, a bottom plate is welded to the bottom of the fiber optic gyroscope housing, a mounting seat is bolted to the bottom of the bottom plate, and a sealing structure is installed between the fiber optic gyroscope housing and the shell cover.

[0007] The sealing structure comprises a sealing ring, which is arranged at the bottom of the shell cover. A convex groove is opened above the shell of the fiber optic gyroscope, and springs are arranged inside the convex groove. There are multiple springs, and a convex ring plate is embedded in the spring.

[0008] In the above technical solution, the sealing ring extends into the convex groove, thereby achieving better sealing between the outer shell and the shell cover of the fiber optic gyroscope, thereby reducing the impact of the external environment on the internal fiber optic gyroscope.

[0009] As a further preferred embodiment of the present technical solution, a connection terminal is provided on the outer wall of one side of the fiber optic gyroscope housing, a flange 1 is fixedly connected to the upper outer surface of the fiber optic gyroscope housing, a positioning hole 1 is provided at a protruding position of the flange 1, and a flange 2 is fixedly connected to the lower outer surface of the shell cover, a positioning hole 2 is provided at a protruding position of the flange 2.

[0010] As a further preferred embodiment of the present technical solution, threads are provided in the first positioning hole and the second positioning hole, and the first flange and the second flange are connected by bolts.

[0011] In the above technical solution, the provided flange 1 and flange 2 are further used to fasten the outer shell and the shell cover of the fiber optic gyroscope.

[0012] As a further preferred embodiment of the present technical solution, the inner wall of the fiber optic gyroscope housing is arranged with reinforcing ribs 1, the inner wall of the shell cover is arranged with reinforcing ribs 2, and reinforcing plates are arranged equidistantly between the inner wall and the bottom side of the fiber optic gyroscope housing.

[0013] In the above technical solution, reinforcing ribs are arranged on the outer shell and the inner wall of the shell cover of the fiber optic gyroscope to reinforce and protect the shell without changing the thickness of the shell, thereby improving the strength of the shell, and the reinforcement plate is arranged for further reinforcement.

[0014] As a further preferred embodiment of the present technical solution, a circular ring plate is fixedly connected to the middle of the bottom side of the fiber optic gyroscope housing, and a connecting plate is provided on the outer surface of the circular ring plate in a circumferential direction and connected to the inner wall of the fiber optic gyroscope housing.

[0015] In the above technical solution, the annular plate and the connecting plate are provided so that the fiber optic gyroscope installed therein can maintain a gap with respect to the bottom side, thereby facilitating the dissipation of heat.

[0016] As a further preferred embodiment of the present technical solution, the outer wall of the convex ring plate is slidably connected to the inner wall of the convex groove, and the sealing ring is in contact with the convex ring plate.

[0017] As a further preferred embodiment of the present technical solution, the outer shell and the shell cover of the fiber optic gyroscope are both made of aluminum alloy.

[0018] In the above technical solution, the outer shell and shell cover of the fiber optic gyroscope are made of aluminum alloy, which is convenient for heat dissipation and has good mechanical strength and corrosion resistance, thereby ensuring the stable operation of the fiber optic gyroscope.

[0019] The utility model provides a shell structure for a fiber optic gyroscope, which has the following beneficial effects:

[0020] (1) The utility model installs a sealing structure between the fiber optic gyroscope housing and the shell cover. When the shell cover is installed on the fiber optic gyroscope housing, the sealing ring squeezes the convex ring plate, and then the sealing ring extends into the convex groove under the action of the spring elasticity, so that the fiber optic gyroscope housing and the shell cover have better sealing, reduce the influence of the external environment on the internal fiber optic gyroscope, and improve the stability and reliability of the fiber optic gyroscope. The flange 1 and the flange 2 are further provided to fasten the fiber optic gyroscope housing and the shell cover.

[0021] (2) The utility model provides reinforcement ribs on the outer shell and the inner wall of the shell cover of the fiber optic gyroscope to reinforce and protect the shell without changing the thickness of the shell, thereby improving the strength of the shell. The reinforcement plate is further reinforced. The circular ring plate and the connecting plate are provided so that the fiber optic gyroscope installed therein can maintain a gap on the bottom side, thereby facilitating heat dissipation. The outer shell and the shell cover of the fiber optic gyroscope are both made of aluminum alloy, which is convenient for heat dissipation and has good mechanical strength and corrosion resistance, thereby ensuring the stable operation of the fiber optic gyroscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the utility model with the shell and the shell cover separated;

[0024] Figure 3 This is a schematic diagram of the structure inside the housing of the fiber optic gyroscope of the utility model;

[0025] Figure 4 It is a partial diagram of the sealing structure of the utility model;

[0026] Figure 5 It is an enlarged view of Figure A of the present utility model;

[0027] In the figure: 1. fiber optic gyroscope housing; 2. housing cover; 3. bottom plate; 4. mounting seat; 5. sealing structure; 11. wiring terminal; 12. convex groove; 13. flange one; 14. positioning hole one; 15. reinforcing rib one; 16. reinforcing plate; 17. circular ring plate; 18. connecting plate; 21. flange two; 22. positioning hole two; 23. reinforcing rib two; 51. sealing ring; 52. spring; 53. convex ring plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] The utility model provides a technical solution: Figure 1 As shown, in this embodiment, a shell structure for a fiber optic gyroscope includes a fiber optic gyroscope housing 1, a housing cover 2 is bolted to the upper end of the fiber optic gyroscope housing 1, a bottom plate 3 is welded to the bottom of the fiber optic gyroscope housing 1, a mounting seat 4 is bolted to the bottom of the bottom plate 3, a sealing structure 5 is installed between the fiber optic gyroscope housing 1 and the housing cover 2, and the fiber optic gyroscope housing 1 and the housing cover 2 are both made of aluminum alloy.

[0030] like Figure 2 and Figure 3 As shown, a connection terminal 11 is provided on the outer wall of one side of the fiber optic gyroscope housing 1, a flange 13 is fixedly connected to the upper outer surface of the fiber optic gyroscope housing 1, and a positioning hole 14 is provided at the protruding position of the flange 13, a flange 21 is fixedly connected to the lower outer surface of the shell cover 2, and a positioning hole 22 is provided at the protruding position of the flange 21, and threads are provided in the positioning hole 14 and the positioning hole 22, and the flange 13 and the flange 21 are connected by bolts, and the inner wall of the fiber optic gyroscope housing 1 is arranged with a reinforcing rib 15, and the inner wall of the shell cover 2 is arranged with a reinforcing rib 23, and reinforcing plates 16 are arranged equidistantly between the inner wall and the bottom side of the fiber optic gyroscope housing 1, and the inside of the fiber optic gyroscope housing 1 A circular plate 17 is fixedly connected to the middle part of the bottom side, and a connecting plate 18 is provided on the outer surface of the circular plate 17 in a circumferential direction and is connected to the inner wall of the fiber optic gyroscope housing 1. By providing reinforcing ribs on the inner walls of the fiber optic gyroscope housing 1 and the shell cover 2, the shell is reinforced and protected without changing the shell thickness, thereby improving the strength of the shell. The provided reinforcing plate 16 is further reinforced. The provided circular plate 17 and connecting plate 18 enable the fiber optic gyroscope installed therein to maintain a gap to the bottom side, thereby facilitating heat dissipation. The fiber optic gyroscope housing 1 and the shell cover 2 are both made of aluminum alloy, which is convenient for heat dissipation and has good mechanical strength and corrosion resistance, thereby ensuring the stable operation of the fiber optic gyroscope.

[0031] like Figure 4 and Figure 5As shown, the sealing structure 5 includes a sealing ring 51, which is arranged at the bottom of the shell cover 2. A convex groove 12 is opened above the fiber optic gyroscope shell 1. Springs 52 are arranged inside the convex groove 12. A plurality of springs 52 are arranged. A convex ring plate 53 is embedded on the spring 52. The outer wall of the convex ring plate 53 is slidably connected with the inner wall of the convex groove 12. The sealing ring 51 contacts the convex ring plate 53. By installing the sealing structure 5 between the fiber optic gyroscope shell 1 and the shell cover 2, when the shell cover 2 is installed on the fiber optic gyroscope shell 1, the sealing ring 51 squeezes the convex ring plate 53, and then the sealing ring 51 extends into the convex groove 12 under the elastic action of the spring 52, so that the fiber optic gyroscope shell 1 and the shell cover 2 have better sealing, reduce the influence of the external environment on the internal fiber optic gyroscope, and improve the stability and reliability of the fiber optic gyroscope. The flange 13 and the flange 21 are further provided to fasten the fiber optic gyroscope shell 1 and the shell cover 2.

[0032] The utility model provides a shell structure for an optical fiber gyroscope, and the specific working principle is as follows: when a shell cover 2 is installed on an optical fiber gyroscope housing 1, a sealing ring 51 squeezes a convex ring plate 53, and then the sealing ring 51 extends into a convex groove 12 under the elastic action of a spring 52, so that the optical fiber gyroscope housing 1 and the shell cover 2 have good sealing performance, and bolts are arranged between a flange 13 and a flange 21 for fastening; a reinforcing rib 15, a reinforcing plate 16 and a reinforcing rib 23 are arranged to provide strength protection for the housing; a circular ring plate 17 and a connecting plate 18 are arranged so that the optical fiber gyroscope installed therein can maintain a gap on the bottom side, so as to facilitate heat dissipation, and the optical fiber gyroscope housing 1 and the shell cover 2 are both made of aluminum alloy, which is convenient for heat dissipation and has good mechanical strength and corrosion resistance.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A housing structure for a fiber optic gyroscope, comprising a fiber optic gyroscope housing (1), characterized in that: The upper end of the fiber optic gyroscope housing (1) is bolted with a housing cover (2), the bottom of the fiber optic gyroscope housing (1) is welded with a base plate (3), the bottom of the base plate (3) is bolted with a mounting seat (4), and a sealing structure (5) is installed between the fiber optic gyroscope housing (1) and the housing cover (2); The sealing structure (5) comprises a sealing ring (51), wherein the sealing ring (51) is arranged at the bottom of the housing cover (2), a convex groove (12) is provided above the housing (1) of the fiber optic gyroscope, springs (52) are arranged in the convex groove (12), a plurality of springs (52) are provided, and a convex ring plate (53) is embedded in the spring (52).

2. The housing structure for an optical fiber gyroscope according to claim 1, characterized in that: A connection terminal (11) is provided on an outer wall of one side of the fiber optic gyroscope housing (1); a flange 1 (13) is fixedly connected to the upper outer surface of the fiber optic gyroscope housing (1); a positioning hole 1 (14) is provided at a protruding position of the flange 1 (13); a flange 2 (21) is fixedly connected to the lower outer surface of the housing cover (2); a positioning hole 2 (22) is provided at a protruding position of the flange 2 (21).

3. The housing structure for an optical fiber gyroscope according to claim 2, characterized in that: The first positioning hole (14) and the second positioning hole (22) are both provided with threads, and the first flange (13) and the second flange (21) are connected by bolts.

4. The housing structure for a fiber optic gyroscope according to claim 1, characterized in that: The inner wall of the fiber optic gyroscope housing (1) is arranged with reinforcing ribs one (15), the inner wall of the housing cover (2) is arranged with reinforcing ribs two (23), and reinforcing plates (16) are arranged equidistantly between the inner wall and the bottom side of the fiber optic gyroscope housing (1).

5. The housing structure for a fiber optic gyroscope according to claim 1, characterized in that: A circular plate (17) is fixedly connected to the middle of the bottom side of the fiber optic gyroscope housing (1), and a connecting plate (18) is provided on the outer surface of the circular plate (17) in a circumferential direction and is connected to the inner wall of the fiber optic gyroscope housing (1).

6. The housing structure for a fiber optic gyroscope according to claim 1, characterized in that: The outer wall of the convex ring plate (53) is slidably connected to the inner wall of the convex groove (12), and the sealing ring (51) is in contact with the convex ring plate (53).

7. The housing structure for a fiber optic gyroscope according to claim 1, characterized in that: The optical fiber gyroscope housing (1) and the housing cover (2) are both made of aluminum alloy.

Images