Wave-activated power generator provided with rope-control hydraulic cylinder

A rope control mechanism, comprises:

• a rope, a frame, an electric brake, and two friction wheel gear units, each of the friction wheel gear unit is formed by a gear, a friction wheel coupled to the gear through a shaft, the shaft mounted on the frame through the bearing and housing;
• wherein (a) the two friction wheel gear units are identical and sequentially and adjacently installed on the frame, axes of the two friction wheel gear units are parallel and in the same direction, and end faces of the two friction wheel gear units are aligned;
• the gears of the two friction wheel gear units are meshed with each other, and outer diameters of the friction wheels are smaller than a diameter of a reference circle of the gears, so that the friction wheels do not contact with each other;
• the rope passes around the friction wheel of each of the friction wheel gear units successively in a zigzagged manner, namely a direction of the rope passing around the first friction wheel and direction of the rope passing around the second friction wheel are opposite during an extension of the rope;
• alternatively, (b) the diameters of the gears of the two friction wheel gear units are different, and the diameters of the friction wheels of the two friction wheel gear units are different, while the ratio of the diameter of the friction wheel to the diameter of the reference circle of the gear in each friction wheel gear unit is the same, wherein the two friction wheel gear units are sequentially and adjacently installed on the frame, axes of the two friction wheel gear units are parallel and in the same direction, and end faces of the two friction wheel gear units are aligned, the gears of the two friction wheel gear units are meshed with each other, and an outer diameter of the friction wheel is smaller than a diameter of the reference circle of the gear in each friction wheel gear unit, so that the friction wheels do not contact with each other, the rope passes around the friction wheel of each of the friction wheel gear units successively in zigzagged manner, namely a direction of the rope passing around the first friction wheel and a direction of the rope passing around the second friction wheel are opposite during an extension of the rope,
• the gear of the friction wheel gear units is couples to a rotor of the electric break through a shaft, and a stator of the electric brake is fixed on the frame, if one end of the rope is subjected to a large pulling force, then a small pulling force is applied to the other end of the rope to resist.

A rope control mechanism, comprises:

• a frame, a linear-rotary motion conversion mechanism, and an electric brake;
• a stator of the electric brake is fixed on the frame;
• the linear-rotary motion conversion mechanism is a friction wheel and rope type;
• one end of the rope is connected to a gravity anchor, and the other end extends upward to pass through a fairlead/double-roller chock installed at the bottom end of the frame of the rope control mechanism, then passes around two friction wheels successively, and extends downward to pass through another fairlead/double-roller chock installed at the bottom end of the frame, and continues to extend downward to be finally connected to a counterweight;
• the rope between the rotating member of the linear- rotary motion conversion mechanism and the gravity anchor is defined as an energy harvesting line;
• the rope between the rotating member of the linear-rotary motion conversion mechanism and the counterweight is defined as a reset line;
• each of the friction wheels is coupled to a gear through a shaft;
• the friction wheel, the gear, the shaft and its bearing and housing form a friction wheel gear unit;
• the shaft is mounted on the frame of the rope control mechanism through the bearing and housing;
• wherein (a) two identical friction wheel gear units have parallel axes, same directions and aligned end faces and are sequentially and adjacently mounted on the frame, and the gears of the two friction wheel gear units are meshed with each other;
• however, a diameter of the rim of the friction wheel is than a diameter of a reference circle of the gear in each of the friction wheel gear units, the friction wheels do not interfere with each other;
• the gear of only one of the friction wheel gear units is coupled to a rotor of the electric bake, and the rope successively passes the friction wheels in each of the friction wheel gear units in a zigzagged manner, namely, a direction of the rope passing around the first friction wheel and a direction of the rope passing around the second friction wheel are opposite during an extension of the rope;
• alternatively, (b) the gears of the two friction wheel gear units are different in diameter and the two friction wheels are different in diameter, but the ratio of the diameter of the friction wheel to the diameter of the gear in each friction wheel gear unit is the same, wherein the two friction wheel gear units have parallel axes, same directions and aligned end faces and are sequentially and adjacently mounted on the frame, and the gears of the two friction wheel gear units are meshed with each other, a diameter of the rim of the friction wheel is not greater than a diameter of a reference circle of the gear in each friction wheel gear unit, the friction wheels do not interfere with each other, the gear of only one of the friction wheel gear units is couples to a rotor of the electric brake, and the rope successively passes the friction wheels in each of the friction wheel ear units in a zigzagged manner, namely, a direction of the rope passing around the first friction wheel and a direction of the rope passing around the second friction wheel are opposite during an extension of the rope.

A rope control mechanism, comprises:

• a frame, a linear-rotary motion conversion mechanism connected to a gravity anchor, and an electric brake;
• a rotating member of the linear-rotary motion conversion mechanism is coupled to a rotor of the electric brake by a main shaft, or linked with the rotor of the electric brake through a chain/gear/belt transmission mechanism;
• a stator of the electric brake is fixed on the frame, a top of the frame is connected to a Wave Energy Collection and Conversion System (WEC), and the main shaft of the rotating member of the linear-rotary motion conversion mechanism is installed on the frame through a bearing and housing;
• wherein the WEC comprises a hydraulic cylinder having one end connecting to a floating body and another end connecting to the frame, the WEC collects wave energy through a relative movement between the frame and the floating body and then converts the wave energy collected through the relative movement to electricity,
• the linear-rotary motion conversion mechanism is a round link sprocket and welded chain type, or a friction wheel and rope type;
• when the linear-rotary motion conversion mechanism is the round link sprocket and welded chain type, one end of the welded chain is connected to the gravity anchor, and the other end extends upward to passed through a fairlead/double-roller chock installed at the bottom end of the frame of the rope control mechanism, then passes around a round link sprocket, and extends downward to pass through another fairlead/double-roller chock installed at the bottom end of the frame, and continues to extend downward to be finally connected to a counterweight;
• when the linear-rotary motion conversion mechanism is the friction wheel and rope type, one end of the rope is connected to the gravity anchor, and the other end extends upward to pass through a fairlead/double-roller chock installed at the bottom end of the frame, then passes around a friction wheel, and extends downward to pass through another fairlead/double-roller chock installed at the bottom end of the frame, and continues to extend downward to be finally connected to a counterweight;
• the rope/welded chain between the rotating member of the linear-rotary motion conversion mechanism and the gravity anchor is defined as an energy harvesting line;
• the rope/welded chain between the rotating member of the linear-rotary motion conversion mechanism and the counterweight is defined as a reset line.