Electric dual-mode emergency retracting device for movable platform of spaceflight launching site

By using an electric dual-mode emergency retraction device, which combines the power coupling and precise control of DC and AC motors, the problems of long and unstable manual emergency retraction are solved, enabling fast and stable platform retraction and improving equipment reliability and safety.

CN224467502UActive Publication Date: 2026-07-07CHINESE PEOPLES LIBERATION ARMY UNIT 63723
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Patent Information

Application Number
CN202521443868.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-10
Publication Date
2026-07-07
Estimated Expiration
2035-07-10

AI Technical Summary

Technical Problem

In existing technologies, the manual emergency retraction method of space launch site activity platforms is time-consuming, relies on manpower, is prone to fatigue, is difficult to respond quickly, and the unstable operation affects the reliability and safety of the equipment.

Method used

It adopts an electric dual-mode emergency retraction device, integrating 220V AC power supply and 48V DC battery dual working modes. The motor speed and torque are precisely controlled through the control panel. Combined with the power coupling of DC geared motor and AC motor, it can achieve fast and stable platform retraction. The structure of fixed block, screw, limit block and other structures ensures the precise installation of transmission components and platform stability.

Benefits of technology

It enables the platform to be retracted quickly, stably, and safely in emergency situations, avoiding shaft misalignment, extending equipment lifespan, and improving system reliability and ease of operation.

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Abstract

The utility model discloses a spaceflight launching site movable platform electric dual-mode emergency retracting device, which relates to the technical field of movable platforms, and comprises a fixed frame, the inner wall of the fixed frame is fixedly connected with a base, and the upper surface of the base is provided with a direct current gear motor and a winch which are matched with each other. According to the utility model, the dual working modes of 220V AC power supply and 48V DC battery are integrated, when the commercial power is stable, efficient operation is guaranteed by means of the 220V AC mode, and when emergency situations such as sudden power failure occur, the system can immediately start the 48V DC battery mode by only manually operating the mode conversion switch, the whole process is seamlessly connected, the response is rapid, the continuous and stable operation of the emergency function is ensured, and the safety of the system is ensured. The dynamic coupling of the direct current motor and the alternating current motor can be realized, the rotating speed and the torque output of the motors can be accurately regulated and controlled, meanwhile, a stable running state can be kept in each operation, the shaft shifting phenomenon caused by non-uniform stress is avoided, the service life of equipment is prolonged, and the running reliability of the system is effectively improved.
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