Dual-motor dragging integral hemisphere bearing gyro machine

Abstract

The invention relates to a dual-motor dragging integral hemisphere bearing gyro machine which is composed of a rotor, rotor magnetic poles, stators, a hemisphere bowl, a right hemisphere, a left hemisphere, a motor shaft and nuts. The dual-motor dragging integral hemisphere bearing gyro machine is characterized in that the hemisphere bowl is an integral hemisphere bowl, the motor shaft is sleeved with the integral hemisphere bowl, and the two axial sides of the integral hemisphere bowl are matched with the left hemisphere and the right hemisphere respectively. The dual-motor dragging integral hemisphere bearing gyro machine is simple and reliable in structure, and easy and convenient to machine and assemble, the precision and performance of a bearing are easy to ensure, the bearing precision and motor dynamic balance are not affected by repeated disassemblies and assemblies, the dual-motor dragging integral hemisphere bearing gyro machine can be applied in the field of navigation, and the precision of the gyro machine and that of an inertial navigation system are significantly improved.

Description

technical field [0001] The invention belongs to the field of gyro motors, in particular to a dual-motor drag integral hemispherical bearing gyro motor. Background technique [0002] At present, large ships have higher and higher requirements for the precision of inertial navigation systems, and the requirements for gyroscopes are also continuously improved. As the core component of the gyroscope - the gyroscope motor, its performance is directly related to the performance of the gyroscope and even the inertial navigation system, especially the starting reliability of the gyroscope motor is very important to the gyroscope. [0003] The reliability of the gyro motor mainly involves two aspects. First, the electromagnetic structure of the gyro motor. Second, the bearings that support the high-speed operation of the gyro motor. At present, the electromagnetic structure of the gyro motor is a single motor structure, which is limited by the structure size, the drag torque is sm...

AI Technical Summary

Problems solved by technology

At present, the electromagnetic structure of the gyro motor is a single motor structure, which is limited by the structural size, the drag torque is small, and the reliability is low.

The bearings that support the high-speed operation of the gyro motor generally use split-type dynamic pressure gas bearings, which have a complex structure and require very high machining accuracy and assembly accuracy. The coaxiality of the journal bearings at both ends of the split-type dynamic pressure gas bearings is difficult to ensure

In addition, after the repeated disassembly and assembly of the bearing, the accuracy changes greatly, and at the same time, it has a great impact on the dynamic balance of the motor, which is very unfavorable for the reliable operation of the gyro motor

At the same time, gas bearings are usually made of the same material to ensure reliable operation of gas bearings under operating temperature conditions. Friction pairs composed of the same material are unreasonable in design.

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