Mechanical framework of fiber-optic gyroscope

Abstract

The utility model discloses a mechanical framework of a fiber-optic gyroscope, which relates to the technical field of fixing and supporting of fiber-optic gyroscopes and comprises a bottom plate, an outer cover is sleeved at the upper end of the bottom plate, and a fixing mechanism is mounted at the upper end of the outer cover. Through cooperation of the supporting ring, the wire outlet, the embedding groove, the first screw hole, the blocking piece, the supporting column, the second screw hole, the wire pressing plate, the first through hole, the top cover and the second through hole and arrangement of the blocking piece, the tail fiber is firmly fixed, the tail fiber is well protected in the transportation process of the fiber-optic gyroscope, the vibration resistance of the whole fiber-optic gyroscope is improved, the overall performance of the fiber-optic gyroscope is guaranteed, and the service life of the fiber-optic gyroscope is prolonged. Through cooperation of a supporting ring, a wire outlet, an embedding groove, a first screw hole, a blocking piece, a supporting column, a second screw hole, a wire pressing plate, a first through hole, a top cover and a second through hole and arrangement of the blocking piece, the tail fiber is firmly fixed, the tail fiber is well protected in the transportation process of the fiber-optic gyroscope, the vibration resistance of the whole fiber-optic gyroscope is improved, and the overall performance of the fiber-optic gyroscope is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber gyroscope fixing and supporting, in particular to an optical fiber gyroscope mechanical frame. Background Art

[0002] Fiber optic gyroscope is a fiber optic angular velocity sensor, which is the most promising type of fiber optic sensor for promotion and application. Like the ring laser gyroscope, the fiber optic gyroscope has the advantages of no mechanical moving parts, no warm-up time, insensitivity to acceleration, wide dynamic range, digital output, and small size. In addition, the fiber optic gyroscope overcomes the fatal shortcomings of the ring laser gyroscope, such as high cost and locking phenomenon.

[0003] Fiber optic gyroscopes have a natural advantage in vibration resistance, but the use of them also exposes the problem that the vibration environment has an adverse effect on the accuracy of the fiber optic gyroscope. Generally, people notice that the components used in the fiber optic gyroscope (such as circuit boards, detectors, waveguides, couplers, etc.) are not installed firmly, which will cause vibration to affect the performance indicators of the fiber optic gyroscope. The existing technology has the following problems:

[0004] In actual use of the existing fiber optic gyroscope mechanical skeleton, the fiber pigtail is not properly placed during transportation, which will also affect the safety of the fiber optic ring during transportation and the overall performance of the fiber optic gyroscope. At the same time, the fiber optic gyroscope has no supporting protection structure, and is easily vibrated during transportation, causing damage to internal components. Utility Model Content

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A fiber optic gyroscope mechanical skeleton comprises a bottom plate, an outer cover is sleeved on the upper end of the bottom plate, a fixing mechanism is installed on the upper end of the outer cover, and a supporting mechanism is installed on the lower end of the bottom plate.

[0007] Preferably: the fixing mechanism comprises a supporting ring, the lower end of the supporting ring is fixedly connected to the upper end face of the outer cover, two groups of wire outlets are provided on the surface of the supporting ring, both sides of the wire outlets are symmetrically provided with engaging grooves, a screw hole 1 is provided on the surface of the engaging groove, four groups of baffles are symmetrically fixedly connected to the inner wall of the outer cover, four groups of pillars are symmetrically fixedly connected to the inner upper side of the outer cover, screw hole 2 is provided through the surface of the pillar, a wire pressing plate is embeddedly connected to the inner side of the engaging groove, through holes 1 are symmetrically provided on both sides of the wire pressing plate, a top cover is movably connected to the inside of the supporting ring, and through holes 2 are symmetrically provided on the surface of the top cover.

[0008] Preferably, the wire pressing plate matches the fitting groove, the through hole 1 is consistent in size with the screw hole 1, and the blocking piece is in an "L" shape.

[0009] Preferably, the pillar is slightly higher than the baffle, the upper end of the pillar is movably connected to the lower end of the top cover, and the second through hole is consistent in size with the second screw hole.

[0010] Preferably: the supporting mechanism comprises a fixing frame, the inner side of the fixing frame is fixedly connected to the outer side of the base plate, the fixing frame is movably connected to a supporting frame below, the upper end of the supporting frame is symmetrically fixedly connected to a fixing cylinder, the interior of the fixing cylinder is fixedly connected to a spring, the top of the spring is fixedly connected to a limiting plate, and the upper end of the limiting plate is fixedly connected to a support rod.

[0011] Preferably, the limiting plate is slidably connected to the inner wall of the fixing cylinder.

[0012] Preferably, the upper end of the support rod is fixedly connected to the lower end surface of the fixing frame.

[0013] Preferably, the outer side of the upper end of the bottom plate is fixedly connected to the lower end of the outer cover.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model provides a fiber optic gyroscope mechanical skeleton, which is provided with a fixing mechanism, a support ring, a wire outlet, an engaging groove, a screw hole 1, a baffle, a pillar, a screw hole 2, a wire pressing plate, a through hole 1, a top cover, and a through hole 2, so that the pigtail is firmly fixed, and the fiber optic gyroscope is well protected during transportation, the vibration resistance of the entire fiber optic gyroscope is improved, and the overall performance of the fiber optic gyroscope is guaranteed.

[0016] 2. The utility model provides a fiber optic gyroscope mechanical skeleton, which can provide shock-absorbing protection for the fiber optic gyroscope through the support mechanism, through the cooperation of a fixing frame, a supporting frame, a fixing tube, a spring, a limiting plate, and a supporting rod, so as to prevent the fiber optic gyroscope from being damaged by external forces, thereby increasing the service life of the fiber optic gyroscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the mechanical skeleton of the fiber optic gyroscope of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the fixing mechanism of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the detail diagram of the fixing mechanism of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the support mechanism of the utility model;

[0021] Figure 5 It is a structural schematic diagram of a detail diagram of the support mechanism of the utility model.

[0022] In the figure: 1, bottom plate; 2, outer cover; 3, fixing mechanism; 4, supporting mechanism; 31, supporting ring; 32, wire outlet; 33, fitting groove; 34, screw hole 1; 35, baffle; 36, pillar; 37, screw hole 2; 311, wire pressing plate; 312, through hole 1; 313, top cover; 314, through hole 2; 41, fixing frame; 42, supporting frame; 43, fixing cylinder; 44, spring; 45, limit plate; 46, support rod. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the embodiments:

[0024] like Figure 1-5 As shown, the utility model provides a fiber optic gyroscope mechanical skeleton, including a base plate 1, an outer cover 2 is sleeved on the upper end of the base plate 1, a fixing mechanism 3 is installed on the upper end of the outer cover 2, and a supporting mechanism 4 is installed on the lower end of the base plate 1.

[0025] The outer side of the upper end of the bottom plate 1 is fixedly connected to the lower end of the outer cover 2 .

[0026] The fixing mechanism 3 can securely fix the fiber pigtail, which can well protect the fiber pigtail during transportation, improve the vibration resistance of the entire fiber optic gyroscope, and ensure the overall performance of the fiber optic gyroscope. The supporting mechanism 4 can provide shock-absorbing protection for the fiber optic gyroscope to prevent it from being damaged by external forces, thereby increasing the service life of the fiber optic gyroscope.

[0027] like Figure 2-3 As shown, the fixing mechanism 3 includes a support ring 31, the lower end of the support ring 31 is fixedly connected to the upper end face of the outer cover 2, two groups of wire outlets 32 are provided on the surface of the support ring 31, both sides of the wire outlets are symmetrically provided with engaging grooves 33, and the surface of the engaging grooves 33 is provided with screw holes 34, the inner wall of the outer cover 2 is symmetrically fixedly connected with four groups of baffles 35, the inner upper side of the outer cover 2 is symmetrically fixedly connected with four groups of pillars 36, the surface of the pillars 36 is penetrated with screw holes 37, the inner side of the engaging grooves 33 is engaged with a wire pressing plate 311, both sides of the wire pressing plate 311 are symmetrically provided with through holes 312, the interior of the support ring 31 is movably connected with a top cover 313, and the surface of the top cover 313 is symmetrically provided with through holes 314.

[0028] The wire pressing plate 311 matches the fitting groove 33 , the through hole 1 312 is consistent in size with the screw hole 1 34 , and the blocking piece 35 is in an “L” shape.

[0029] The support 36 is slightly higher than the blocking piece 35 , the upper end of the support 36 is movably connected to the lower end of the top cover 313 , and the second through hole 314 and the second screw hole 37 are of the same size.

[0030] The baffle 35 is provided to facilitate fixing the pigtail on the optical fiber ring, the support 36 is provided to facilitate supporting the top cover 313 and fixing the top cover 313, and the wire pressing plate 311 is provided to facilitate fixing the pigtail out of the outlet 32 ​​to prevent it from falling off.

[0031] like Figure 4-5 As shown, the support mechanism 4 includes a fixed frame 41, the inner side of the fixed frame 41 is fixedly connected to the outer side of the base plate 1, the lower part of the fixed frame 41 is movably connected with a support frame 42, the upper end of the support frame 42 is symmetrically fixedly connected with a fixed cylinder 43, the interior of the fixed cylinder 43 is fixedly connected with a spring 44, the top of the spring 44 is fixedly connected with a limit plate 45, and the upper end of the limit plate 45 is fixedly connected with a support rod 46.

[0032] The limiting plate 45 is slidably connected to the inner wall of the fixing tube 43 .

[0033] The upper end of the support rod 46 is fixedly connected to the lower end surface of the fixing frame 41 .

[0034] The working principle of the fiber optic gyroscope mechanical skeleton is described in detail below.

[0035] like Figure 1-5 As shown, when the fiber optic gyro mechanical skeleton is used, the wound fiber ring is first placed on the packaging table, and then according to the required pigtail length, a reserved optical fiber is reserved, and the pigtail is wound around a paper tube with a specific outer diameter. The specific outer diameter should be consistent with or slightly smaller than the inner diameter of the annular side wall. Then, the coiled pigtail is fixed with paper tape and then placed in the inner cavity of the outer cover 2. At the same time, the pigtail is led out from the outlet 32 ​​and fixed with a specific glue, which can effectively protect the pigtail from being broken. Then, the top cover 313 and the pressure tube can be The wire plate 311 is placed on the outer cover 2, and can be connected with the screw hole 1 34 and the screw hole 2 37 by external bolts, so that the outer cover 2 can be closed, its protection is improved, transportation is convenient, and its vibration resistance is good. During transportation, the skeleton will move downward after being subjected to external force, so that the bottom plate 1 moves downward, and the support rod 46 moves downward, thereby driving the limit plate 45 to move downward synchronously, and the spring 44 is squeezed by the limit plate 45, so that the spring 44 is stressed, so as to perform shock absorption to prevent the fiber optic gyroscope from being damaged.

[0036] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A fiber optic gyroscope mechanical frame, comprising a base plate (1), wherein an outer cover (2) is sleeved on the upper end of the base plate (1), characterized in that: A fixing mechanism (3) is installed at the upper end of the outer cover (2), and a supporting mechanism (4) is installed at the lower end of the base plate (1).

2. The fiber optic gyro mechanical frame according to claim 1, characterized in that: The fixing mechanism (3) comprises a support ring (31), the lower end of the support ring (31) is fixedly connected to the upper end surface of the outer cover (2), the surface of the support ring (31) is provided with two groups of wire outlets (32), both sides of the wire outlets (32) are symmetrically provided with engaging grooves (33), the surface of the engaging grooves (33) is provided with a screw hole (34), the inner wall of the outer cover (2) is symmetrically fixedly connected with four groups of baffles (35), and the outer cover ( 2) are symmetrically fixedly connected to the inner upper side thereof, a second screw hole (37) is penetrated through the surface of the pillar (36), a wire pressing plate (311) is embedded and connected to the inner side of the embedding groove (33), and a through hole (312) is symmetrically opened on both sides of the wire pressing plate (311), and a top cover (313) is movably connected to the inside of the support ring (31), and a second through hole (314) is symmetrically opened on the surface of the top cover (313).

3. The fiber optic gyro mechanical frame according to claim 2, characterized in that: The wire pressing plate (311) matches the fitting groove (33), the through hole 1 (312) and the screw hole 1 (34) are of the same size, and the blocking piece (35) is in an "L" shape.

4. The fiber optic gyro mechanical frame according to claim 3, characterized in that: The support (36) is slightly higher than the baffle (35), the upper end of the support (36) is movably connected to the lower end of the top cover (313), and the second through hole (314) and the second screw hole (37) are of the same size.

5. The fiber optic gyro mechanical frame according to claim 1, characterized in that: The support mechanism (4) comprises a fixing frame (41), the inner side of the fixing frame (41) is fixedly connected to the outer side of the bottom plate (1), a supporting frame (42) is movably connected below the fixing frame (41), the upper end of the supporting frame (42) is symmetrically fixedly connected to a fixing cylinder (43), the interior of the fixing cylinder (43) is fixedly connected to a spring (44), the top of the spring (44) is fixedly connected to a limiting plate (45), and the upper end of the limiting plate (45) is fixedly connected to a support rod (46).

6. The fiber optic gyro mechanical frame according to claim 5, characterized in that: The limiting plate (45) is slidably connected to the inner wall of the fixing cylinder (43).

7. The fiber optic gyro mechanical frame according to claim 6, characterized in that: The upper end of the support rod (46) is fixedly connected to the lower end surface of the fixing frame (41).

8. The fiber optic gyro mechanical frame according to claim 1, characterized in that: The outer side of the upper end of the base plate (1) is fixedly connected to the lower end of the outer cover (2).

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