Multi-motor-driven speed reducer and control method and application thereof

By designing a multi-motor driven reducer, the problem of needing to stop the machine when the existing reducer fails is solved. This enables stable operation and non-stop replacement when the motor fails, adapts to various load connection requirements, and improves the stability and working efficiency of the equipment.

CN121761079APending Publication Date: 2026-03-31HUBEI SWEITE TRANSMISSION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing speed reducers require immediate shutdown when the drive motor fails, affecting work efficiency. In certain environments, shutdown may lead to losses and safety hazards, and the single-ended output cannot adapt to different usage requirements.

Method used

The reducer design employs a multi-motor drive, including an internal cycloidal pinwheel reduction mechanism, multiple geared motors, and a rescue motor. These motors are connected to the cycloidal pinwheel reduction mechanism via a transmission assembly. An angle sensor and control unit are also included, enabling the machine to continue operating using the rescue motor in case of motor failure without immediate shutdown. Furthermore, the motor can be replaced without affecting the stability of the reducer.

Benefits of technology

It ensures stable equipment operation even in the event of motor failure, allows for maintenance at appropriate times, guarantees equipment stability and efficiency, is compatible with dual-end load connections, has a small overall size and compact structure, does not affect transmission in the event of motor failure, supports replacement without shutting down, and reduces the probability of downtime.

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    Figure CN121761079A_ABST
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Abstract

The invention provides a multi-motor-driven speed reducer which comprises a shell internally provided with a cycloidal-pin wheel speed reducing mechanism, one end of the shell is rotationally connected with an output frame connected with the cycloidal-pin wheel speed reducing mechanism, and the other end of the shell is provided with a plurality of speed reducing motors and at least one rescue motor. And the output ends of the speed reducing motor and the rescue motor are connected with the cycloidal-pin wheel speed reducing mechanism through a transmission assembly. According to the speed reducer driven by the multiple motors, the multiple driving motors and the multiple rescue motors are arranged at the same time, if the speed reducing motor breaks down, the speed reducing motor does not need to be shut down immediately for maintenance, the speed reducing motor can continue to work to the proper time for maintenance and replacement, and stable work of equipment is guaranteed; when the motor breaks down or does not work, transmission between the corresponding motor and the speed reducer is disconnected, work of the speed reducer is not affected, and stability of the speed reducer is guaranteed.
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