A high-stability, shock-resistant and vibration-resistant marine liquid-floating gyroscope float structure

Abstract

The invention relates to a high-stability, impact-resistant and vibration-resistant floater structure of a liquid floated gyroscope for ships. The high-stability, impact-resistant and vibration-resistant floater structure of the liquid floated gyroscope for the ships comprises a floatation cylinder, frames and a dynamic pressure air bearing motor, wherein a bearing hole and a thrust surface of the dynamic pressure air bearing motor are integrated; two ends of a shaft of the dynamic pressure air bearing motor are sleeved with fastening nuts; an axial structure of the dynamic pressure air bearing motor between the two fastening nuts is mounted between the frames in an interference manner; the two ends of the shaft of the dynamic pressure air bearing motor are mounted on the frames in a radial direction by using pressure plates and compression screws. According to the high-stability, impact-resistant and vibration-resistant floater structure of the liquid floated gyroscope for the ships, the mass center of the floater structure is not easy to change; the bearing capacity of the motor bearing is improved; the high impact bearing capability is improved; when the floater structure is applied to the gyroscope, the stable output of the gyroscope can be ensured; the precision of the gyroscope can be effectively improved; the use conditions of novel ships can be met; the application of the high-stability, impact-resistant and vibration-resistant floater structure of the liquid floated gyroscope for the ships can be expanded to the fields such as aerospace.

Description

technical field [0001] The invention relates to a single-degree-of-freedom liquid-floating rate-integrating gyroscope in the technical field of gyroscopes for inertial navigation systems, in particular to a float structure of a liquid-floating gyroscope for ships with high stability and shock resistance and vibration resistance. Background technique [0002] The use of gas dynamic pressure bearing motors is one of the technologies used in high-performance gyroscopes. Under marine environmental conditions, the impact level is generally low, so the gyroscope is generally sufficient to withstand the shock of waves to the hull, and does not have the ability to withstand large impacts. With the upgrading of existing weapons and equipment, new ships put forward special requirements such as good stability and strong impact resistance, and existing instruments put forward requirements for high performance and impact resistance. [0003] The main bottlenecks of the poor impact resis...

AI Technical Summary

Problems solved by technology

[0003] The main bottlenecks of the poor impact resistance of the high-performance marine single-degree-of-freedom liquid floating rate-integrating gyroscope are the low stiffness of the gas dynamic pressure bearing motor and its own structural misalignment

Under the action of a large impact, the rotor of the gas-suspended high-speed rotating motor may fall and collide with the bearing, causing the complete failure of the gyro instrument. The ability to withstand the impact is mainly related to the stiffness of the gas bearing; , the center of mass of the gyroscope may change, resulting in a sudden change in the constant value of the gyroscope output, further reducing the system accuracy

The reason for this is mainly related to the insufficient stability of the connection method between the motor and the frame.

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