CN-115711194-B - Rotary sea anchor power generation device for lifeboat

CN115711194BCN 115711194 BCN115711194 BCN 115711194BCN-115711194-B

Abstract

The invention discloses a rotary sea anchor power generation device for a lifeboat, which belongs to the field of ships and ocean engineering and comprises a power generator assembly, a transmission assembly and a sea anchor assembly, wherein the power generator assembly is connected with the sea anchor assembly through the transmission assembly, the sea anchor assembly is driven to rotate around a shaft by the transverse component force of ocean current, the power generator is driven to rotate through the transmission assembly to generate power, the sea anchor assembly comprises a plurality of resistance gaps circumferentially arranged along a sea anchor main body, the balance of the transverse component force of the ocean current in the sea anchor main body is destroyed by the resistance gaps, so that the transverse component force of the ocean current is directed to the side far away from the gaps, and a moment is generated on the conical surface of the sea anchor main body, so that the sea anchor rotates. When the ocean current passes through the large-diameter end of the ocean anchor, the ocean anchor rotates around the center of the ocean anchor in one direction by the transverse component force of the ocean current acting force on the inner side of the ocean anchor, and the connecting rod is driven to rotate, so that the generator rotates to generate electricity. The device enhances the fixed robustness of the sea anchor power generation system and generalizes the application scene of the system.

Inventors

ZHANG LICHUAN
ZHU ZIXIAO
BAI SHUCHANG
ZHAO QIAOQIAO
ZHU YUCHEN

Assignees

西北工业大学深圳研究院

Dates

Publication Date: 20260508
Application Date: 20221103

Claims (7)

1. The rotary sea anchor power generation device for the lifeboat is characterized by comprising a power generator assembly, a transmission assembly and a sea anchor assembly, wherein the power generator assembly is connected with the sea anchor assembly through the transmission assembly, and the sea anchor assembly rotates around a shaft under the action of the transverse component force of ocean currents and drives the power generator to rotate through the transmission assembly to generate power; The sea anchor assembly comprises a plurality of resistance slits arranged along the circumferential direction of the sea anchor main body, and the resistance slits break the balance of the transverse component force of the water flow in the sea anchor main body, so that the transverse component force of the water flow is directed away from the slit side, and a moment is generated on the conical surface of the sea anchor main body to enable the sea anchor to rotate; The sea anchor assembly comprises a sea anchor main body and a framework, wherein the outer contour of the sea anchor main body is a hollow cone with two open ends, and a supporting framework is arranged in the sea anchor main body; The resistance gap is formed by dislocation of conical surfaces at the bus of the sea anchor main body, and the inner wall surface and the outer wall surface of the resistance gap are formed after the dislocation of the conical surfaces; the framework comprises a large-diameter end framework, a small-diameter end framework and a slotted support bar, wherein the slotted support bar is used for supporting a conical surface dislocation space; the sea anchor body comprises three pieces of fan-shaped canvas with consistent size and shape, wherein the three pieces of fan-shaped canvas are uniformly distributed along the circumferential direction in a staggered manner, and the edges of the fan-shaped canvas are respectively fixed with a large-diameter end framework, a small-diameter end framework and a slotted support bar into an integrated structure.
2. The rotary sea anchor power generation device for the lifeboat of claim 1, wherein the large-diameter end framework is a circular ring with the cross section consistent with that of the large-diameter end of the sea anchor body, reinforcing ribs are arranged in the circular ring, and the small-diameter end framework is formed by reducing the large-diameter end framework in an equal ratio and is consistent with that of the small-diameter end of the sea anchor body.
3. The rotary sea anchor power generation device for the lifeboat according to claim 2, wherein the reinforcing ribs in the large-diameter end framework are large-diameter end connecting ropes fixed on the inner annular surface of the large-diameter end framework, the large-diameter end connecting ropes are regular triangles with the side length of 40.7cm, the reinforcing ribs in the small-diameter end framework are small-diameter end connecting ropes fixed on the inner annular surface of the small-diameter end framework, the small-diameter end connecting ropes are regular triangles with the side length of 3.9cm, the slotted support bars are located at the large-diameter end at a height of 4.3cm, and the slotted support bars are located at the small-diameter end at a height of 0.4cm.
4. A rotary sea anchor generating set for a lifeboat according to claim 3, wherein the radius of the bottom edge of the fan-shaped canvas is 25cm, the radius of the top edge is 3cm, and the generatrix is 65.4cm.
5. The rotary sea anchor power generation device for a lifeboat of claim 1, wherein the generator assembly comprises a generator, a generator shaft and a generator bearing seat, the generator is fixed inside a hull, the generator shaft extends to the sea anchor cabin through a hull subjected to waterproof treatment, and the generator bearing seat is fixed at an output end of the generator shaft.
6. The rotary sea anchor power generation device for the lifeboat of claim 5, wherein the transmission assembly comprises a connecting rod, a cross shaft, a connecting rod bearing seat, a turntable rod, a cable ring and a cable, one end of the connecting rod is connected with the generator bearing seat through the cross shaft, the other end of the connecting rod is provided with the connecting rod bearing seat, the connecting rod bearing seat is connected with the turntable bearing seat through the cross shaft, and the turntable bearing seat is arranged on one side plate surface of the turntable; The turntable is provided with a turntable embedded shaft along a central shaft, a plurality of turntable rods are uniformly distributed in the circumferential direction of the turntable embedded shaft along the circumferential direction, springs are arranged in the turntable embedded shaft, when the turntable rods are not stressed, the turntable rods can be automatically retracted, one ends of a plurality of cables are fixedly connected with each cable ring respectively, and the other ends of the cables are fixed on a large-diameter end framework.
7. The rotary sea anchor power generation device for the lifeboat of claim 6, further comprising a push rod motor assembly, wherein the push rod motor assembly comprises a push rod motor main body, a push rod bearing seat and a connecting rod sliding bearing, the push rod motor main body is arranged on the ship body, the push rod is a push rod motor with the end part hinged with the connecting rod sliding bearing through the push rod bearing seat, the connecting rod sliding bearing is provided with a central through hole and sleeved on a connecting rod of the transmission part, and the push rod is pushed out and recovered by driving the axial displacement of the push rod through the push rod motor main body.

Description

Rotary sea anchor power generation device for lifeboat Technical Field The invention belongs to the field of ships and ocean engineering, and particularly relates to a rotary sea anchor power generation device for a lifeboat. Background The sea anchor is a hollow bag similar to a parachute, a section of connecting rope is thrown into water to quickly sink and expand, and the sea anchor is fixed by utilizing the weight and resistance of the sea water along with the inflow of the sea water. The sea anchor has the functions of enabling the head of the rescue boat to prop against the wind and the waves, preventing the rescue boat from capsizing in the strong wind waves, slowing down the drifting speed of the rescue boat in the downwind direction and keeping the rescue boat position for rescue. Relevant convention, regulation, specification and standard are issued at home and abroad to make sure that the lifeboats and the liferafts should be equipped with a certain number of sea anchors. When the marine life-saving device is used for seeking survival, compared with diesel oil, the electric energy is easier to obtain, so that the electric life-saving boat is gradually accepted by the market, an electric driving distillation device and communication equipment are further arranged on the boat, the survival probability and the rescue probability of sea men are increased, unmanned ships are widely researched and applied nowadays, most of small and medium-sized unmanned ships are also electrically driven, but the unmanned ships are limited by battery capacity, and the range and the working time of the unmanned ships are also greatly limited. One way to make electric lifeboats and unmanned boats obtain continuous power is to add solar panels, but due to the current technical limitations, the conversion efficiency of solar panels is not high and is greatly affected by weather, and when encountering continuous rainy days or nights, power supply cannot be guaranteed. The sea anchor is subjected to a large force during operation, and the energy of the assembly can be utilized to generate electricity. If the force borne by the sea anchor is converted into electric energy, the device can be used without being limited by weather and can be used by flowing sea water, so that the application scene is wider and more efficient. In the scheme of generating power by using the sea anchors in the prior art, the tail parts of the sea anchors are provided with power generators, and when ocean currents pass through the sea anchors, blades of the power generators are driven to rotate for generating power. The technology has the defects that the sea anchor is not easy to lay, the motor is arranged at one end of the sea anchor, so that the sea anchor falls down and winds, the sea anchor cannot work normally, the generator blades, the cables and the cables can be wound around the generator due to the fact that a plurality of cables are arranged around the generator, the generator cannot generate electricity, and the generator is exposed to the outside, so that the generator blades can be wound by plankton or damaged due to collision with marine hard floaters. Disclosure of Invention The technical problems to be solved are as follows: In order to avoid the defects of the prior art, the invention provides a rotary sea anchor generating device for a lifeboat, which is characterized in that a gap with an opening direction tangential to a conical surface is added on a traditional sea anchor, when ocean current passes through a large-diameter end of the sea anchor, the sea anchor is rotated in one direction around the center of the sea anchor by a transverse component force of ocean current acting force on the inner side of the sea anchor, and a connecting rod is driven to rotate, so that a generator rotates to generate electricity. The device enhances the fixed robustness of the sea anchor power generation system and generalizes the application scene of the system. The technical scheme is that the rotary sea anchor power generation device for the lifeboat comprises a power generator assembly, a transmission assembly and a sea anchor assembly, wherein the power generator assembly is connected with the sea anchor assembly through the transmission assembly, and the sea anchor assembly rotates around a shaft under the action of transverse component force of sea current and drives a power generator to rotate through the transmission assembly to generate power; The sea anchor assembly comprises a plurality of resistance slits which are circumferentially arranged along the sea anchor body, and the balance of the transverse component force of the water flow in the sea anchor body is destroyed by the resistance slits, so that the transverse component force of the water flow is directed away from the slit side, and a moment is generated on the conical surface of the sea anchor body to enable the sea anchor to rotate. The sea anchor assembly comprises a se