Actuation system and operating method capable of implementing various profiles for two cables with a single actuator

System for driving two cables with a single actuator

This technology relates to an actuation system and operating method capable of implementing various profiles for two cables using a single actuator.

Previously, each cable required a separate motor, which increased system weight and power consumption, and made it difficult to implement overlapping drive profiles for the two cables.

This technology uses a moving gear and pulley units to distribute and switch the output of a single motor between two cables, simplifying control while reducing both the number of actuators and battery consumption.

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Key Features:

• A motor and motor gear capable of rotating in first and second directions to drive the loosening and pulling of cables
• A moving gear that meshes with the motor gear and is configured to orbit around the motor gear shaft to distribute power
• A gear connection unit where the motor gear shaft is coupled to a fixed end, connecting the motor gear and the moving gear while allowing for orbital movement
• A pair of pulley units spaced apart at both ends of the moving gear, featuring external gears and serving as winding points for the cables

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This invention was developed with support from the Zero-Power Physical Augmentation Basic Research Laboratory of the Ministry of Science and ICT, and the Korea Forest Service's project for developing deep learning-integrated smart wearable suits to assist muscle strength, prevent injuries, and improve work efficiency for forestry workers.