CN113123918A - Integrated six-degree-of-freedom floater wave energy power generation device - Google Patents
Integrated six-degree-of-freedom floater wave energy power generation device Download PDFInfo
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- CN113123918A CN113123918A CN202110425622.9A CN202110425622A CN113123918A CN 113123918 A CN113123918 A CN 113123918A CN 202110425622 A CN202110425622 A CN 202110425622A CN 113123918 A CN113123918 A CN 113123918A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
- F03B13/1805—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/062—Constructions floating in operational condition, e.g. breakwaters or wave dissipating walls
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/08—Tide or wave power plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/40—Transmission of power
- F05B2260/403—Transmission of power through the shape of the drive components
- F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention relates to an integrated six-degree-of-freedom floater wave energy power generation device which comprises a support, wherein a cavity into which waves enter is formed in the support, a wave-facing porous plate is arranged on one side of the support, which faces the waves, a back wave baffle is arranged on one side of the support, which is far away from the waves, a power generation gear assembly is arranged at the top of the support, and a floater assembly connected with the power generation gear assembly is arranged in the cavity formed by the support. Six motion modes are decoupled into single reciprocating linear motion by the floater, the structure is simple, convenient and reasonable, electric energy converted by the motion of the floater with each degree of freedom is collected, wave energy can be fully utilized to generate electricity, and the generating efficiency is high.
Description
Technical Field
The invention relates to the field of wave energy power generation, in particular to an integrated six-degree-of-freedom floater wave energy power generation device.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Ocean is a huge energy reservoir and wave energy is an important renewable energy source. However, the spatial distribution of wave energy has a certain randomness, and how to improve the utilization efficiency of wave energy is a key for the practical use of wave energy power generation. Research has pointed out that the wave energy power generation device is integrated on a breakwater and other structures, and the wave energy conversion efficiency is improved by utilizing the superposition principle of front incident waves and reflected waves of the breakwater and other structures.
In early designs, wave energy power generation devices are mostly integrated in shore-based fixed or offshore base structures, while fixed structures are mostly suitable for shallow water areas with low wave energy density, and high-cost investment needs to be carried out on large hydraulic foundations, so that economic benefits brought by wave energy power generation are seriously weakened, and the practicability and popularization prospect of wave energy utilization are limited.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides an integrated six-degree-of-freedom float wave energy power generation device, which is integrated in a floating box type breakwater. The length-width ratio of the cavity is changed by moving the position of the wave-facing porous wall, so that the resonance period of the cavity is matched with the incident wave period, the effect of wave height amplification is achieved, the floater with six degrees of freedom (swaying, surging, heaving, yawing, rolling) collects electric energy converted from motion in all directions, wave energy can be fully utilized for power generation, and the power generation efficiency is high.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides an integrated six-degree-of-freedom floater wave energy power generation device, which comprises a bracket, wherein a cavity into which waves enter is formed in the bracket, a wave-facing porous plate is arranged on one side of the bracket, which is in contact with the waves, and a back wave baffle is arranged on one side of the bracket, which is far away from the waves;
the motion in three translation directions is realized through the matching of the power generation gear assembly and the bracket, and the mechanical energy generated by the motion in three translation degrees of freedom is converted into electric energy through the power generation gear assembly; the decoupling of three rotation directions is realized through the floater assembly, and the mechanical energy generated by the movement of three rotational degrees of freedom of the floater is collected and converted into electric energy.
The top of the bracket is provided with at least one group of supporting shaft seats, the supporting shaft seats are connected with a second sliding rod, one side of the second sliding rod, which is faced with waves, is provided with a screw rod, the screw rod is sleeved with a spiral sliding block, and the spiral sliding block is connected with a wave-facing porous plate.
The first sliding block is sleeved on the second sliding rod and connected with the base, at least two groups of supporting shaft seats are arranged on two sides of the base and connected with the first sliding rod, the second sliding block is sleeved on the first sliding rod and connected with the power generation gear assembly through a cover plate.
The power generation gear assembly is fixed on the cover plate and moves linearly along the direction of the first polish rod through a second slide block fixed on the cover plate; the power generation gear assembly moves linearly along the direction of the second sliding rod through a first sliding block fixed on the base; the first slide bar and the second slide bar are perpendicular to each other in the horizontal direction.
And a wave probe is arranged on one side of the wave-facing perforated plate facing the waves and used for monitoring the incident period of the waves.
The floater component comprises a movable floater, the top of the movable floater is provided with a fixed platform, and the fixed platform is connected with the power generation gear component through a rack.
At least three groups of parallel moving branched chains are arranged between the movable floater and the fixed platform, each moving branched chain comprises a crank rocker mechanism, a first arc-shaped rod and a second arc-shaped rod, each crank rocker mechanism comprises a connecting rod, a first micro generator moving along the axial direction of the connecting rod is mounted on each connecting rod, and the axial lines of output shafts of at least three groups of first generators are intersected at one point in a space.
One end of the first arc-shaped rod is rotatably connected with the fixed platform, the other end of the first arc-shaped rod is rotatably connected with one end of the second arc-shaped rod, the other end of the second arc-shaped rod is connected with an output shaft of the first motor, the axis of the revolute pair between the first arc-shaped rod and the movable floater and the axis of the revolute pair between the first arc-shaped rod and the second arc-shaped rod are intersected at another point in the space, and the intersection point of the point and the axes of the output shafts of the three groups of first micro-generators is superposed.
The second generator is arranged on the crank rocker mechanism, one end of the foot rest is connected with the movable floater, and the other end of the foot rest is connected with the rocker.
The power generation gear assembly comprises a double-sided rack, two side faces of the double-sided rack are respectively meshed with at least two groups of input gears, the input gears and the output gears rotate coaxially, the output gears are meshed with the gear of the generator, an input shaft of the generator is connected with the shaft of the gear of the generator through a coupler, and a ratchet wheel sliding groove is formed between the input gears and the output gears.
Compared with the prior art, the above one or more technical schemes have the following beneficial effects:
1. by moving the position of the wave-facing porous plate, the length-width ratio of the cavity is changed, so that the resonance period of the cavity is matched with the incident wave period, the wave height is amplified, and the main purpose of the breakwater with the cavity is not damaged.
2. The complex motion decoupling of the wave-driven floater is motion with six degrees of freedom, namely translational degrees of freedom in the directions of three x, y and z axes on a steel frame and rotational degrees of freedom of the floater assembly around the x, y and z axes, and then the complex motion decoupling drives the corresponding generator to work to generate electric energy.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic diagram of the overall structure provided by one or more embodiments of the present invention;
FIG. 2(a) is a schematic structural view of a float assembly provided in accordance with one or more embodiments of the present invention;
FIG. 2(b) is a schematic illustration of a partial structure of a float assembly provided in accordance with one or more embodiments of the present invention;
FIG. 2(c) is a schematic diagram of a group of moving branches of a buoy assembly provided in one or more embodiments of the invention;
FIG. 3 is a schematic structural view of a power generation gear assembly provided in accordance with one or more embodiments of the present invention;
FIG. 4 is a schematic diagram of a control system configuration provided by one or more embodiments of the invention;
in fig. 1: 1. a support shaft seat; 2. a cover plate; 3. a first polish rod; 4. a second polish rod; 5. a steel frame; 6. a back wave baffle; 7. a float assembly; 8. a first slider; 9. a spiral slider; 10. a screw; 11. a wave probe; 12. a power generation gear assembly; 13. a second slider; 14. a wave-facing porous plate;
in fig. 2: 71. a first arcuate bar; 72. a second arcuate bar; 73. a rocker; 74. a connecting rod; 75. a first generator; 76. a crank; 77. a rack; 78. an upper plate; 79. a second generator; 80. a foot rest; 81. a conical float;
in fig. 3: 1201. a double-sided rack; 1202. a gear; 1203. a generator; 1204. a platform; 1205. a generator gear; 1206. a ratchet wheel chute; 1207. an input gear; 1208. a coupling is provided.
Detailed Description
The invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As described in the background art, in early designs, wave energy power generation devices were mostly integrated in shore-based fixed or offshore base structures, however, fixed structures are mostly suitable for shallow water areas with low wave energy density, and at the same time, high-cost investment needs to be performed on large hydraulic foundations, which seriously weakens the economic benefits brought by wave energy power generation and limits the practicality and popularization prospects of wave energy utilization. In addition, in the traditional research, the wave energy collection efficiency is improved by simply increasing the size of the floater, and the power generation efficiency is also improved by increasing the degree of freedom of the floater, so that the method mainly stays in the research direction of a three-degree-of-freedom floater structure at present.
The following embodiment provides a structural form of an integrated six-degree-of-freedom floater wave energy power generation device, wherein three parallel-connected moving branch chains are arranged between a fixed platform and a moving floater, a linear moving direction is decoupled relative to three rotating directions, and six degrees of freedom are translational degrees of freedom in three x, y and z axis directions on a steel frame and three rotational degrees of freedom of a floater assembly around the x, y and z axes respectively, and then the corresponding power generator is driven to work to generate electric energy.
The first embodiment is as follows:
as shown in fig. 1-4, an integrated six-degree-of-freedom float wave energy power generation device comprises a steel frame 5, a wave energy power generation chamber is formed inside the steel frame 5, a wave-facing porous plate 14 is arranged on one side of the steel frame 5 facing waves, a back wave baffle 6 is arranged on one side of the steel frame 5 far away from the waves, a power generation gear assembly 12 is arranged at the top of the steel frame, and a float assembly 7 connected with the power generation gear assembly 12 is arranged inside the chamber formed by the steel frame 5.
The top of the steel frame 5 is provided with at least one group of supporting shaft seats 1, a second polished rod 4 is connected among the groups of supporting shaft seats 1, one side of the second polished rod 4, which faces waves, is provided with a screw rod 10, the screw rod 10 is sleeved with a spiral sliding block 9, and the spiral sliding block 9 is connected with a wave-facing porous plate 14;
the second polished rod 4 is sleeved with a first slider 8, the first slider 8 is connected with the base, at least two groups of supporting shaft seats 1 are arranged on two sides of the base, the first polished rod 3 is connected between the groups of supporting shaft seats 1, the first polished rod 3 is sleeved with a second slider 13, and the second slider 13 is connected with a power generation gear assembly 12 through a cover plate 2.
The power generation gear assembly 12 is fixed on the cover plate 2 and can linearly move along the direction of the first polished rod 3 through a second sliding block 13 fixed on the cover plate 2; the first slide block 8 fixed on the base can move linearly along the direction of the second polish rod 4; the first and second polish rods 3 and 4 are perpendicular to each other in the horizontal direction.
In this embodiment, the steel frame 5 is a rectangular frame structure, the top of the steel frame is connected with two second polish rods 4 through four sets of supporting shaft seats 1, the two second polish rods 4 are respectively sleeved with four sets of first sliders 8 (each second polish rod 4 is sleeved with two sets of first sliders 8), the first sliders 8 are fixed on the base, four sets of supporting shaft seats 1 are arranged on two sides of the base, a first polish rod 3 is arranged between every two sets of supporting shaft seats 1, and four sets of second sliders 13 are sleeved on the first polish rod 3 (every two sets of second sliders 13 are sleeved with a first polish rod 3).
The first polish rod 3 and the second polish rod 4 in the structure are used as guide rails for the power generation gear assembly 12 to move in the horizontal direction, and under the action of the sliding blocks and the polish rods, the power generation gear assembly 12 can realize left-right translation and front-back translation in the horizontal direction, namely movement in the directions of an x axis and a y axis, and movement in the direction of a z axis is realized by the power generation gear assembly 12.
The wave probe 11 is arranged on the side of the wave-facing perforated plate 14 facing the waves and used for monitoring the incident period of the waves.
Under the normal operating condition, the breakwater is anchored on the sea bottom through the vertical guide piles, when waves are transmitted to the front of the breakwater, the wave probe 11 fixed in front of the breakwater can measure the incident period of the waves, the appropriate length of the cavity is matched by combining the result of numerical simulation in the early stage, and the control system of the cavity breakwater is adopted to regulate and control the movement of the porous wall (the wave-facing porous plate 14) in real time, so that the resonance period of the cavity is matched with the incident period of the waves passing through the porous wall (the wave-facing porous plate 14), thereby amplifying the wave height captured indoors and achieving the effect of amplifying the wave energy.
As shown in fig. 2, the float assembly 7 includes a movable float, which in this embodiment is a cone-shaped float 81, and the top of the cone-shaped float 81 has an upper plate 78, and the upper plate 78 is connected with the power generation gear assembly 12 through a rack.
At least three groups of parallel moving branched chains are arranged between the conical floater 81 and the upper plate 78, and each moving branched chain comprises a crank rocker mechanism, a first arc-shaped rod 71 and a second arc-shaped rod 72.
The crank rocker mechanism comprises a connecting rod 74, a first micro generator 75 capable of moving along the axial direction of the connecting rod is mounted on the connecting rod 74, and the axes of the output shafts of the three first generators 75 are intersected at one point in a space.
One end of the first arc-shaped rod 71 is connected with the upper plate 78 through a revolute pair, the other end of the first arc-shaped rod is connected with one end of the second arc-shaped rod 72 through a revolute pair, the other end of the second arc-shaped rod 72 is connected with an output shaft of the first motor 75, the axis of the revolute pair between the first arc-shaped rod 71 and the movable floater (the conical floater 81) and the axis of the revolute pair between the first arc-shaped rod 71 and the second arc-shaped rod 72 intersect at another point in space, and the intersection point of the axes of the three output shafts of the first micro-generator 75 coincides with the intersection point (shown in fig.. The second generator 79 is mounted on a crank and rocker mechanism, and a foot rest 80 has one end connected to a conical float 81 and the other end connected to a rocker 73.
The float part is a three-degree-of-freedom parallel mechanism, comprising: the parallel mechanism can realize decoupling in three rotation directions, collects mechanical energy generated by movement of three rotational degrees of freedom of the floater, and converts the mechanical energy into electric energy.
The mechanism has three orthogonal rotational degrees of freedom and stable rotational centers, namely the rotational degrees of freedom of the floater in three directions, and realizes rotation around x, y and z axes.
Working principle of the float assembly 7: under the action of waves, the conical floater 81 firstly drives the first arc-shaped rod 71 connected with the conical floater to rotate, and then the second arc-shaped rod 72 rotates, so that the conical floater 81 rotates around an X axis, a Y axis and a Z axis of a three-dimensional coordinate system taking the intersection point of the axis of the revolute pair of the first arc-shaped rod 71 and the axis of the revolute pair of the second arc-shaped rod 72 as the origin of the three-dimensional coordinate system.
Meanwhile, in order to prevent the second arc-shaped rod 72 from moving and being locked, a crank rocker mechanism is introduced, the second arc-shaped rod 72 rotates through a connecting rod driving the crank rocker mechanism, so that the intersection point of the axes of the output shafts of the three second micro motors 79 moves up and down along the normal of the upper fixing plate 78, and further the rotation of the first arc-shaped rod 71 and the second arc-shaped rod 72 around the point O cannot be locked.
Decoupling wave energy to six degrees of freedom (swaying, surging, heaving, yawing, rolling, pitching) at the floater into motion of the movable floater in the vertical direction, wherein the decoupling means that three rotational degrees of freedom are not influenced by each other; each degree of freedom corresponds to a moving branched chain, and a micro generator (a first micro generator 75 and a second micro generator 79) is arranged at a rotating pair of the moving branched chain to collect mechanical energy, convert the mechanical energy into electric energy and store the electric energy, wherein the micro generator is a piezoelectric ceramic micro generator in the embodiment.
The six degrees of freedom are translational degrees of freedom in three x-axis, y-axis and z-axis directions on the steel frame 5 and rotational degrees of freedom of the floater assembly 7 around the x-axis, the gear assembly 2 is used for collecting mechanical energy generated by movement in the three translational directions, and the piezoelectric ceramic micro-generator is used for collecting the mechanical energy (torsion at joints) generated by the three rotational degrees of freedom at each joint.
The power generation gear assembly 12 comprises a double-sided rack 1201, the double-sided rack 1201 is the end part of a rack 77, the two side surfaces of the double-sided rack 1201 are respectively meshed with at least two groups of input gears 1207, the input gears 1207 and a gear 1202 rotate coaxially, the gear 1202 is meshed with a generator gear 1205, an input shaft of a generator 1203 is connected with a shaft of the generator gear 1205 through a coupling 1208, a ratchet chute 1206 is arranged between the input gear 1207 and the gear 1202, and the generator 1203 is installed on a platform 1204.
The fluctuation motion of the waves enables the floater assembly 7 to drive the rack 77 to move linearly up and down, the double-sided rack 1201 is the tail end part of the rack 77, the double-sided rack 1201 drives the input gears 1207 on the left side and the right side to rotate, so that the shaft is driven to rotate, the shaft drives the gear 1202 to rotate, and the gear 1202 is meshed with the generator gear 1205 to enable the generator shaft to rotate; through the process, the linear motion of the rack is converted into the rotary motion of the input shaft of the generator, and the generator is driven to work.
When waves enter a first polished rod 3 and a second polished rod 4 in a cavity steel frame and serve as guide rails for the power generation gear assembly 12 to move in the horizontal direction, the power generation gear assembly 12 can horizontally translate left and right and move back and forth under the action of the sliding blocks and the polished rods, namely, the power generation gear assembly 12 moves in the directions of the x axis and the y axis, the complex fluctuation motion of the waves is responded by the movement of the gear assembly 12 in the directions of the x axis and the y axis, the movement of the waves in the height direction, namely the direction of the z axis, is realized by the power generation gear assembly 12, finally, the motion in the three translation directions (the x axis, the y axis and the z axis) is realized through the matching of the power generation gear assembly 12 and the steel frame, and mechanical energy generated by the motion in three translation degrees.
Ratchet wheel type overrunning clutches are installed in the ratchet wheel sliding grooves 1206, the overrunning clutches on the two sides are installed in the same direction, only one group of gears works when the rack 1201 moves up and down, meanwhile, the generator continuously operates, and power generation efficiency is improved.
The device also comprises a control system which comprises an information acquisition unit, a control unit and an execution mechanism and is used for controlling the translation of the wave-facing porous plate 14 and regulating and controlling a proper cavity resonance period.
The information acquisition unit comprises a wave probe sensor and is used for measuring the incident period of waves about to pass through the wave-facing porous plate 14 and transmitting period information to the control unit;
the control unit comprises an input module, an operation module, a motor control module and an output module;
the input module is used for receiving the wave incident periodic signal detected by the information acquisition unit;
the operation module calculates the appropriate chamber length required by the chamber according to the wave period information, and transmits the operation result to the motor control module, and the motor control module generates a motor control instruction according to the operation result of the operation module and transmits the generated control instruction to the output module;
the output module is connected with the motor and controls the motor to work.
The structure changes the length-width ratio of the chamber by moving the position of the wave-facing porous plate 14, so that the resonance period of the chamber is matched with the incident wave period, the effect of amplifying the wave height is achieved, and then the wave energy in the chamber is captured by using a proper wave energy power generation device. The integrated system does not compromise the primary use of the chambered breakwater.
The six-freedom-degree (swaying, surging, heaving, yawing, rolling and pitching) integrated oscillating floater is realized, the six freedom degrees are respectively the translational freedom degrees in the directions of three x, y and z axes on a steel frame and the rotational freedom degrees of a floater component around the x, y and z axes, the structure is simple, convenient and reasonable, the electric energy converted by the movement of the floater with each freedom degree is collected, the wave energy can be fully utilized for power generation, and the power generation efficiency is high.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An integrated six-degree-of-freedom floater wave energy power generation device is characterized in that: the wave generator comprises a bracket, wherein a wave incident cavity is formed in the bracket, a wave-facing porous plate is arranged on one side of the bracket facing waves, a back wave baffle is arranged on one side of the bracket far away from the waves, a power generation gear assembly is arranged at the top of the bracket, and a floater assembly connected with the power generation gear assembly is arranged in the cavity formed by the bracket;
the motion in three translation directions is realized through the matching of the power generation gear assembly and the bracket, and the mechanical energy generated by the motion in three translation degrees of freedom is converted into electric energy through the power generation gear assembly; the decoupling of three rotation directions is realized through the floater assembly, and the mechanical energy generated by the movement of three rotational degrees of freedom of the floater is collected and converted into electric energy.
2. An integrated six degree of freedom float wave energy electric generating apparatus according to claim 1, characterised in that: the top of the support is provided with at least one group of supporting shaft seats, the supporting shaft seats are connected with a second sliding rod, one side of the second sliding rod, which is in contact with waves, is provided with a screw rod, the screw rod is sleeved with a spiral sliding block, and the spiral sliding block is connected with a wave-contacting porous plate.
3. An integrated six degree of freedom float wave energy electric generating apparatus according to claim 2, characterised in that: the first sliding block is sleeved on the second sliding rod and connected with the base, at least two groups of supporting shaft seats are arranged on two sides of the base, the multiple groups of supporting shaft seats are connected with the first sliding rod, the second sliding block is sleeved on the first sliding rod and connected with the power generation gear assembly through a cover plate.
4. An integrated six degree of freedom float wave energy electric generating apparatus according to claim 3, characterised in that: the power generation gear assembly moves linearly along the direction of the first polish rod through a second sliding block fixed on the cover plate; the power generation gear assembly moves linearly along the direction of the second sliding rod through a first sliding block fixed on the base; the first slide bar and the second slide bar are perpendicular to each other in the horizontal direction.
5. An integrated six degree of freedom float wave energy electric generating apparatus according to claim 1, characterised in that: and a wave probe is arranged on one side of the wave-facing porous plate facing waves.
6. An integrated six degree of freedom float wave energy electric generating apparatus according to claim 1, characterised in that: the floater component comprises a movable floater, the top of the movable floater is provided with a fixed platform, and the fixed platform is connected with the power generation gear component through a rack.
7. An integrated six degree of freedom float wave energy electric generating apparatus according to claim 6, wherein: at least three groups of parallel moving branched chains are arranged between the movable floater and the fixed platform, and each moving branched chain comprises a crank rocker mechanism, a first arc-shaped rod and a second arc-shaped rod; the crank rocker mechanism comprises a connecting rod, the connecting rod is connected with a first micro generator which moves along the axial direction of the connecting rod, and the axial lines of the output shafts of at least three groups of first generators are intersected at one point in a space.
8. An integrated six degree of freedom float wave energy electric generating apparatus according to claim 7, wherein: one end of the first arc-shaped rod is rotatably connected with the fixed platform, the other end of the first arc-shaped rod is rotatably connected with one end of the second arc-shaped rod, the other end of the second arc-shaped rod is connected with an output shaft of the first motor, the axis of the revolute pair between the first arc-shaped rod and the movable floater and the axis of the revolute pair between the first arc-shaped rod and the second arc-shaped rod are intersected at another point in the space, and the intersection point of the point and the axes of the output shafts of the three groups of first micro-generators is superposed.
9. An integrated six degree of freedom float wave energy electric generating apparatus according to claim 8, wherein: the second generator is arranged on the crank rocker mechanism, one end of the foot rest is connected with the movable floater, and the other end of the foot rest is connected with the rocker.
10. An integrated six degree of freedom float wave energy electric generating apparatus according to claim 1, characterised in that: the power generation gear assembly comprises a double-sided rack, two side faces of the double-sided rack are respectively meshed with at least two groups of input gears, the input gears and the output gears rotate coaxially, the output gears are meshed with a generator gear, an input shaft of the generator is connected with a shaft of the generator gear through a coupler, and a ratchet wheel sliding groove is formed between the input gears and the output gears.
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