Anti-interference gyroscope of pressure-resistant inertial navigation device

Abstract

The invention provides an anti-interference gyroscope of a pressure-resistant inertial navigation device, the anti-interference gyroscope comprises a gyroscope main body and a resonant ring, a plurality of second slots are formed in the gyroscope main body, a mass main body is arranged in the second slots, the resonant ring is fixedly connected to the inner circular surface of the gyroscope main body, and a third slot and a fourth slot are formed in each of the two side surfaces of the mass main body. A first elastic piece is arranged in the third open groove, and a second elastic piece is arranged in the fourth open groove. According to the scheme, the third open groove and the fourth open groove are formed in the four corners of the mass body respectively, and the first elastic piece and the second elastic piece which are provided with the transducers are placed in the third open groove and the fourth open groove respectively; the first elastic piece and the second elastic piece measure and calculate the deviation angle of the mass main body through the transducer, and the deviation value of the mass main body is corrected through the measurement and control chip, so that the deviation value is measured and calculated through the output quantity of the measurement and control chip to the mass main body during correction, and the purpose of improving the anti-interference capability of the gyroscope is achieved.

Description

Technical Field

[0001] This invention relates to the field of gyroscope equipment technology, specifically to an anti-interference gyroscope for a pressure-resistant inertial navigation device. Background Technology

[0002] The anti-jamming gyroscope in a pressure-resistant inertial navigation system is an inertial navigation component that maintains high accuracy and reliability even under high-pressure environments. This type of gyroscope is primarily used in underwater vehicles, deep-sea drilling equipment, and other systems that require operation under extreme pressure conditions.

[0003] Gyroscopes typically employ more rational mechanical structures and real-time temperature compensation to improve their anti-interference capabilities. However, these methods are constrained by the progress of research in materials science and other fields, making it difficult to meet the current anti-interference requirements of gyroscopes. Therefore, a more rational anti-interference gyroscope is needed. Summary of the Invention

[0004] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an anti-interference gyroscope for a pressure-resistant inertial navigation device, which solves the problems mentioned in the background section.

[0005] Technical solution To achieve the above objectives, the present invention provides the following technical solution: an anti-interference gyroscope for a pressure-resistant inertial navigation device, characterized in that it comprises a gyroscope body and a resonant ring. The gyroscope body has several second slots, each containing a mass. The resonant ring is fixedly connected to the inner circular surface of the gyroscope body. The mass has a third and a fourth slot on each of its two sides. A first elastic element is disposed in the third slot, and a second elastic element is disposed in the fourth slot. A fifth slot is located on the side of the mass near the resonant ring, containing a third elastic element, which is fixedly connected to the gyroscope body.

[0006] Preferably, an upper package and a lower package are respectively snapped onto the two ends of the gyroscope body. Several snap-fit ​​blocks are fixedly connected to the side of the upper package and the lower package near the gyroscope body. Several first slots are opened on both ends of the gyroscope body, and the snap-fit ​​blocks are snapped into the first slots.

[0007] Preferably, a limiting ring is fixedly connected to the inner circular surface of the resonant ring, and the inner circular surface of the limiting ring is provided with a plurality of limiting slots.

[0008] Preferably, annular openings are provided on both the inner and outer circular surfaces of the mass body, and a limiting ring is embedded in the annular opening.

[0009] Preferably, the second slot is set with equal arc around the axis of the gyroscope body, and the mass body within the second slot includes components located at... i = 1, 3, 5, 7, 9, 11, 13, 15, the eight first mass blocks at the azimuth angle and respectively located at , i = 2, 4, 6, 8, 10, 12, 14, 16, the eight second mass blocks at the azimuth angle.

[0010] Preferably, the second slot is fan-shaped, and the mass body is adapted to the shape and size of the second slot.

[0011] Preferably, the length of the third elastic element in the radial direction of the second slot is greater than the length of the third elastic element in the tangential direction of the second slot.

[0012] Preferably, the limiting slot is set with the axis of the limiting ring as the core and the same arc. Beneficial effects

[0013] This invention provides an anti-interference gyroscope for a pressure-resistant inertial navigation device. It has the following beneficial effects: This solution involves creating a third and a fourth slot at each of the four corners of the mass body, and placing a first elastic element and a second elastic element, each equipped with a transducer, within the third and fourth slots respectively. The first and second elastic elements then calculate the deviation angle of the mass body through the transducer, and the deviation value is corrected by a measurement and control chip. Furthermore, the measurement and control chip calculates the deviation value based on the output of the mass body during correction, thereby improving the gyroscope's anti-interference capability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 This is a front view structural diagram of the present invention; Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure of AA; Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure of BB; Figure 6 for Figure 5 A magnified structural diagram of C.

[0015] In the diagram: 11. Gyroscope body; 12. First opening; 13. Upper package; 14. Lower package; 15. First slot; 16. Snap-fit ​​block; 17. Resonant ring; 18. Limiting ring; 19. Limiting bayonet; 20. Second slot; 21. Mass body; 22. Third slot; 23. First elastic element; 24. Fourth slot; 25. Second elastic element; 26. Fifth slot; 27. Third elastic element; 28. Annular opening; 29. ​​Limiting ring. Detailed Implementation

[0016] This invention provides an anti-interference gyroscope for a pressure-resistant inertial navigation device, such as... Figure 1-6 As shown, it includes a gyroscope body 11; a first opening 12; an upper package 13; a lower package 14; a first slot 15; a snap-fit ​​block 16; a resonant ring 17; a limiting ring 18; a limiting slot 19; a second slot 20; a mass body 21; a third slot 22; a first elastic element 23; a fourth slot 24; a second elastic element 25; a fifth slot 26; a third elastic element 27; an annular opening 28; and a limiting ring 29.

[0017] like Figure 1-6 As shown, the gyroscope body 11 has several second slots 20 inside, and a mass body 21 is disposed in the second slot 20. The resonant ring 17 is fixedly connected to the inner circular surface of the gyroscope body 11. The mass body 21 has a third slot 22 and a fourth slot 24 on both sides. A first elastic element 23 is disposed in the third slot 22, and a second elastic element 25 is disposed in the fourth slot 24. A fifth slot 26 is disposed on the side of the mass body 21 near the resonant ring 17. A third elastic element 27 is disposed in the fifth slot 26 and is fixedly connected to the gyroscope body 11.

[0018] It is worth noting that the first elastic element 23 and the second elastic element 25 provide radial elasticity to the mass body 21, and the third elastic element 27 provides tangential elasticity to the mass body 21. A transducer is provided on the contact surface between the first elastic element 23 and the second elastic element 25 and the mass body 21. The transducer is connected to a measurement and control chip, and the measurement and control chip is electrically connected to the resonant ring 17.

[0019] The second slot 20 is fan-shaped, and the mass body 21 is adapted to the shape and size of the second slot 20. The radial length of the third elastic element 27 in the second slot 20 is greater than the tangential length of the third elastic element 27 in the second slot 20.

[0020] The upper package 13 and the lower package 14 are respectively snapped onto the two ends of the gyroscope body 11. Several snap-fit ​​blocks 16 are fixedly connected to the side of the upper package 13 and the lower package 14 near the gyroscope body 11. Several first slots 15 are opened on both ends of the gyroscope body 11, and the snap-fit ​​blocks 16 are snapped into the first slots 15.

[0021] A limiting ring 18 is fixedly connected to the inner circular surface of the resonant ring 17. Several limiting slots 19 are provided on the inner circular surface of the limiting ring 18. The limiting slots 19 are set with the axis of the limiting ring 18 as the core and the same arc. Both the inner and outer circular surfaces of the mass body 21 are provided with annular openings 28. A limiting ring 29 is embedded in the annular openings 28.

[0022] The second slot 20 is set with equal arc around the axis of the gyroscope body 11. The mass body 21 within the second slot 20 includes components located at... i = 1, 3, 5, 7, 9, 11, 13, 15, the eight first mass blocks at the azimuth angle and respectively located at , i = 2, 4, 6, 8, 10, 12, 14, 16, the eight second mass blocks at the azimuth angle.

[0023] By dividing the mass body 21 into two groups, the accuracy of the measurement can be ensured by comparing the two groups of mass bodies 21.

[0024] When the gyroscope rotates in this scheme, the gyroscope body 11 rotates, and the resonant ring 17 generates an offset angle, that is, the vibration direction of the resonant ring 17 will deviate from the previous first direction and second direction. The transducers on the first elastic element 23 and the second elastic element 25 detect the offset angle. The measurement and control chip generates an output to the resonant ring 17 according to the magnitude of the offset angle, thereby counteracting the offset caused by the vibration of the resonant ring 17 and suppressing the offset angle of the resonant ring 17 to zero. At this time, the output of the measurement and control chip can be used to calculate the rotational angular velocity of the gyroscope.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-interference gyroscope for a pressure-resistant inertial navigation system, characterized in that: The device includes a gyroscope body (11) and a resonant ring (17). The gyroscope body (11) has several second slots (20) inside. A mass body (21) is disposed in the second slot (20). The resonant ring (17) is fixedly connected to the inner circular surface of the gyroscope body (11). A third slot (22) and a fourth slot (24) are provided on both sides of the mass body (21). A first elastic element (23) is disposed in the third slot (22). A second elastic element (25) is disposed in the fourth slot (24). A fifth slot (26) is provided on the side of the mass body (21) near the resonant ring (17). A third elastic element (27) is disposed in the fifth slot (26). The third elastic element (27) is fixedly connected to the gyroscope body (11).

2. The anti-interference gyroscope of a pressure-resistant inertial navigation device according to claim 1, characterized in that: The two ends of the gyroscope body (11) are respectively snapped with an upper package (13) and a lower package (14). The upper package (13) and the lower package (14) are fixedly connected with a number of snap-fit ​​blocks (16) on the side of the gyroscope body (11) close to the gyroscope body (11). The two ends of the gyroscope body (11) are provided with a number of first slots (15), and the snap-fit ​​blocks (16) are snapped with the first slots (15).

3. The anti-interference gyroscope of a pressure-resistant inertial navigation device according to claim 2, characterized in that: The inner circular surface of the resonant ring (17) is fixedly connected to a limiting ring (18), and the inner circular surface of the limiting ring (18) is provided with a plurality of limiting slots (19).

4. The anti-interference gyroscope of a pressure-resistant inertial navigation device according to claim 2, characterized in that: Both the inner and outer circular surfaces of the mass body (21) are provided with annular openings (28), and a limiting ring (29) is embedded in the annular openings (28).

5. The anti-interference gyroscope of a pressure-resistant inertial navigation device according to claim 1, characterized in that: The second slot (20) is set with equal arc around the axis of the gyroscope body (11), and the mass body (21) within the second slot (20) includes components located at... i = 1, 3, 5, 7, 9, 11, 13, 15, the eight first mass blocks at the azimuth angle and respectively located at , i = 2, 4, 6, 8, 10, 12, 14, 16, the eight second mass blocks at the azimuth angle.

6. The anti-interference gyroscope of a pressure-resistant inertial navigation device according to claim 1, characterized in that: The second slot (20) is fan-shaped, and the mass body (21) is adapted to the shape and size of the second slot (20).

7. The anti-interference gyroscope of a pressure-resistant inertial navigation device according to claim 1, characterized in that: The radial length of the third elastic element (27) in the second slot (20) is greater than the tangential length of the third elastic element (27) in the second slot (20).

8. The anti-interference gyroscope of a pressure-resistant inertial navigation device according to claim 3, characterized in that: The limiting slot (19) is set with the axis of the limiting ring (18) as the core and the same arc.

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