Automatic switching device for multiple drive units

Abstract

The invention discloses an automatic switching device for multiple drive units. The automatic switching device comprises a final output gear, a controllable gearbox, a switching drive mechanism and the at least two drive units. The controllable gearbox comprises a box body, an output shaft, multiple input shafts, a slidable gear and multiple gears. The output shaft, the input shafts, the slidablegear and the gears are all arranged in the gearbox. The gears are in one-to-one correspondence to the input shafts. The drive units are in one-to-one correspondence to the input shafts. The arrangement positions of the gears are different. The slidable gear is arranged on the output shaft and can move along the output shaft. The slidable gear is in engaged transmission with the gears. The final output gear is arranged on the output shaft. The switching drive mechanism and the slidable gear are arranged in a cooperation manner. According to the automatic switching device, the structure is simple and practical, switching of the drive units of the system can be achieved rapidly, the situation that task execution of a radar system is influenced when one drive unit breaks down is avoided, and operation reliability of the radar system is improved.

Description

technical field [0001] The invention relates to the technical field of radar turntables, in particular to an automatic switching device for multiple drive units. Background technique [0002] Unattended radars are widely deployed in high-altitude plateau areas and remote-sea islands and reefs where it is difficult for personnel to stay for a long time, and have high requirements for the reliability of the radar turntable and the self-repairing ability of faults. [0003] The drive unit is the core electromechanical component of the turntable. Due to its long-term continuous operation, the probability of failure is high, which directly determines the reliability of the turntable. The double-drive unit backup technology based on the overrunning clutch effectively improves the reliability of the turntable, but limited by the working principle of the overrunning clutch, the drive unit can only control the turntable rotation in one direction, and cannot decelerate the turntable, ...

AI Technical Summary

Problems solved by technology

The mutual backup technology of dual drive units based on the overrunning clutch effectively improves the reliability of the turntable, but limited by the working principle of the overrunning clutch, the drive unit can only control the rotation of the turntable in one direction and cannot decelerate the turntable. When the driving force such as load acts on the antenna, the rotation speed of the turntable cannot be precisely controlled, and the emergency braking and positioning stop of the turntable cannot be realized. Therefore, not only the performance of the radar turntable is reduced to a certain extent, but also there is a certain degree of safety in actual use. Hidden danger

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