Deployable wave energy harvesting device for autonomous underwater vehicles (AUVs)

A deployable wave energy harvesting device for an autonomous underwater vehicle (AUV), comprising:

• a deployable lifting platform;
• and
• an energy harvesting mechanism fixedly provided on the deployable lifting platform;
• wherein the deployable lifting platform comprises a scissor-type lifting structure;
• a double-end threaded rod is connected to the scissor-type lifting structure to support the scissor-type lifting structure;
• and upper and lower ends of the scissor-type lifting structure are each supported by a sheet metal part;
• a lower end of the deployable lifting platform is provided with a stepper motor seat;
• a first stepper motor is provided at a side of the stepper motor seat, and the first stepper motor is connected to a threaded rod via a first shaft coupling;
• the threaded rod passes through a threaded hole at a center of a slotted pin shaft;
• and the first stepper motor is configured to drive the threaded rod to twist, push and pull the scissor-type lifting structure to lift and lower the deployable lifting platform;
• and
• a spindle on an upper end of the energy harvesting mechanism is mounted on a bearing, and is connected to a generator through a second shaft coupling;
• a support frame is hung at an end of the spindle;
• a scissor-type single-pendulum structure is hung at a lower end of the support frame to act as single pendulum, and an alignment structure is provided at the lower end of the support frame;
• a load is hung on an end of the scissor-type single-pendulum structure;
• a second stepper motor is provided on a first side of the support frame, and a third stepper motor is provided on a second side of the support frame;
• and the second stepper motor and the third stepper motor are configured to drive the load to move upward and downward by rope drive.