CN114033603B - Friction disk type wave generator - Google Patents
Friction disk type wave generator Download PDFInfo
- Publication number
- CN114033603B CN114033603B CN202111416563.5A CN202111416563A CN114033603B CN 114033603 B CN114033603 B CN 114033603B CN 202111416563 A CN202111416563 A CN 202111416563A CN 114033603 B CN114033603 B CN 114033603B
- Authority
- CN
- China
- Prior art keywords
- disc
- movable
- fixed
- shaft
- barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
-
- 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
Abstract
The invention relates to a friction disk type wave generator, belonging to the technical field of new energy; the round barrel is arranged on the seat board through a vertical plate, and a barrel groove is arranged on the barrel wall; the thick shaft of the rotating shaft is provided with a shaft groove, and the thin shaft is provided with a key groove; the outer edge and the center of the fixed disk body are respectively provided with a fixed disk lug and a fixed disk hole, and two sides of the fixed disk body are provided with fixed additional layers; the side wall of the movable disc hole of the movable disc is provided with a movable disc lug and two sides of the movable disc are provided with movable additional layers; the outer edge of the swinging disc body of the swinging disc is provided with an ear plate, two sides of the swinging disc body are respectively provided with a swinging disc hole and a sinking cavity, and the wall of the sinking cavity is provided with a poking piece; convex teeth are arranged on the outer edge of the turntable; the rotating shaft is arranged in the drum, the coarse shaft is sleeved with a fixed disc, and the convex blocks of the fixed disc are respectively inserted in the drum groove and the shaft groove; the outermost fixed disk presses the force-adjusting spring into a spring seat hole on the barrel bottom or the end cover; the rotating shaft extends out of the bottom of the barrel and is sleeved with a swinging disc and a rotating disc, the free end of the poking piece is inserted into a tooth gap of the rotating disc, and the rotating disc is fixedly connected with the thin shaft; the swing plate lug plate is connected with the swing arm, and the swing arm provided with the frequency modulation block is connected with the machine frame vertical plate through the frequency modulation spring.
Description
Technical Field
The invention belongs to the technical field of new energy, and particularly relates to a friction disk type wave generator.
Background
In order to meet the power supply requirements of micro-power electronic products, remote sensing and embedded monitoring systems and the like and avoid a large amount of waste batteries from polluting the environment, the research of micro-miniature generators or energy harvesters based on the principles of electromagnetism, friction, piezoelectricity and the like has become a leading edge hot spot at home and abroad. In the aspect of constructing the micro-generator by utilizing various principles, a plurality of patent applications exist at home and abroad, and the energy source relates to a plurality of aspects such as vibration energy, fluid energy, rotation kinetic energy, human body motion energy and the like in the environment. In contrast, the wave energy motive power has wide existence and high energy density, and has more development and application potential as a clean energy source. At present, the wave energy collection technology mostly adopts electromagnetic power generation for collection, and has the limitations of complex technology, higher cost and the like, wherein the energy conversion efficiency of the vibration type electromagnetic generator under the excitation of low-frequency waves is lower, and the large-scale popularization and application are limited to a certain extent. In view of this, various types of piezoelectric and friction wave generators have been proposed to meet the recovery requirement of low-frequency wave energy. In practical application, due to the structural principle or device characteristics, the existing wave power generator is basically in contact separation mode, the natural frequency of the system is fixed, contact impact and noise exist in the working process, and most importantly, the application requirements of different sea area wave slapping frequencies, wave heights and other excitation conditions cannot be met.
Disclosure of Invention
Aiming at the problems of the existing contact-separation type wave generator, the friction disk type wave generator mainly comprises a frame, an end cover, a rotating shaft, a swing arm, a force adjusting block, a frequency adjusting block, a force adjusting spring, a frequency adjusting spring, a flat key, a swinging disk, a fixed disk, a movable disk, a poking disk and a rotating disk, wherein the swinging disk, the swing arm, the frequency adjusting block and the frequency adjusting spring form an exciter.
The frame consists of two drums, a seat plate and two vertical plates, wherein each drum consists of a drum wall and a drum bottom, the inner side of the drum wall of each drum is provided with a drum groove, and the drum groove is an axial groove; the end cover is arranged at the end part of the barrel wall through screws, barrel bottom holes and a group of uniformly distributed spring seat holes are formed in the end cover and the barrel bottom of the barrel, and the spring seat holes are blind holes and uniformly distributed on the circumference coaxial with the barrel bottom holes; the drums are arranged on the seat plate through two vertical plates, and the bottoms of the two drums are arranged oppositely.
The rotating shaft is composed of a thick shaft and thin shafts at two ends of the thick shaft, the thick shaft and the thin shafts are coaxial, a shaft groove is formed in the thick shaft, and a key groove is formed in the longer thin shaft.
The outer edge and the center of the fixed disk body of the fixed disk are respectively provided with a fixed disk lug and a fixed disk hole, both sides of the fixed disk body are provided with fixed additional layers, the fixed additional layers are composite layers formed by fixed electrode layers and fixed electrification layers, and the fixed electrode layers are close to the fixed disk body; the fixed electrode layer is of an integral annular structure, and the fixed electrode layer and the fixed disc body are respectively identical in shape and size; the fixed electrification layers are of fan-shaped structures and are uniformly distributed, and the sum of central angles of the fixed electrification layers is smaller than 180 degrees; or the fixed additional layer is only a fixed electrode layer, the fixed electrode layers are of fan-shaped structures and are uniformly distributed, and the sum of central angles of the fixed electrode layers is smaller than 180 degrees.
A movable disc hole is formed in the center of a movable disc body of the movable disc, movable disc protruding blocks are arranged on the circumference of the movable disc hole, movable additional layers are arranged on two sides of the movable disc body, the movable additional layers are composite layers formed by movable electrode layers and movable electrification layers, and the movable electrode layers are close to the movable disc body; the movable electrode layer is of an integral annular structure, and the movable electrode layer and the movable disc body are respectively identical in shape and size; the movable electrification layers are of fan-shaped structures and are uniformly distributed, and the sum of central angles of the movable electrification layers is smaller than 180 degrees; or the movable additional layer is only the movable electrode layer, the movable electrode layers are of a fan-shaped structure and are uniformly distributed, and the sum of central angles of the movable electrode layers is smaller than 180 degrees.
The outer edge of the swinging disc body of the swinging disc is provided with an ear plate, one side of the swinging disc body is provided with a swinging disc hole, the other side of the swinging disc body is provided with a sinking cavity, the cavity wall of the sinking cavity is uniformly provided with slots, the slots are parallel to the axis of the swinging disc body, the heights of two slot walls of the slots are different, the wall of the slot is far higher than the wall of the short slot, and the plane of the short slot wall passes through the axis of the swinging disc; the slot is embedded with a plectrum, the free end of the plectrum is not contacted with the wall of the long slot, i.e. the length of the non-clamping part of the plectrum is larger than the height of the wall of the long slot.
The center of the turntable is provided with a turntable hole, the outer edge of the turntable hole is provided with convex teeth, the hole wall of the turntable hole is provided with key grooves, the convex teeth are uniformly distributed along the circumferential direction and are composed of a flat tooth surface and an inclined tooth surface, the plane of the flat tooth surface passes through the center of the turntable, and the tooth tip angle between the flat tooth surface and the inclined tooth surface is an acute angle.
The two drums are internally provided with rotating shafts, the rotating shafts are arranged on the bottom of the drum and the end cover through bearings, the inner rings of the bearings are sleeved on the thin shafts, and the outer rings of the bearings are arranged in the bottom holes of the drum on the bottom of the drum and the end cover; the thick shaft of the rotating shaft is arranged in the drum, the thick shaft is alternately sleeved with a fixed disc and a movable disc, the fixed disc and the movable disc are respectively fixedly installed with the drum and the rotating shaft, the fixed disc lug and the movable disc lug are respectively inserted in the drum groove and the shaft groove, and the movable disc rotates along with the rotating shaft; the outermost fixed disk sequentially presses the force adjusting block and the force adjusting spring into a spring seat hole on the end cover or the barrel bottom; the thin shaft of the rotating shaft extends out from a barrel bottom hole on the barrel bottom, a swinging plate and a rotating disc are sleeved on the extended thin shaft, the rotating disc is positioned in a sinking cavity of the swinging plate, the free end of a poking plate is inserted into a tooth gap of the rotating disc, and the tooth gap is a part between a flat tooth surface and an inclined tooth surface of two adjacent convex teeth; the swinging disc hole of the swinging disc is sleeved on the thin shaft, the swinging disc can rotate around the thin shaft, and the turntable hole of the turntable is sleeved on the thin shaft and is fixed through a flat key; the protruding ends of the rotating shafts arranged on the two drums are opposite, the sinking cavities of the wobble plates arranged on the two rotating shafts are opposite, the lug plates of each wobble plate are connected with one end of the swing arm through screws, the swing arm is provided with a frequency modulation block through screws, the swing arm is connected with two vertical plates of the frame through two frequency modulation springs, the mounting positions of the frequency modulation block and the frequency modulation springs on the swing arm are adjustable, and the frequency modulation springs are perpendicular to the swing arm when the swing arm is not in operation.
In the invention, the interaction force between the fixed disc and the movable disc can be adjusted by changing the thickness of the force adjusting block.
In the invention, the swing arm can be positioned in a vertical plane or a horizontal plane when not in operation, and is respectively used for collecting the energy of transverse and longitudinal vibration; when the swing arm is in the horizontal plane, the distances from the two frequency modulation springs to the center of the rotating shaft are unequal.
In the invention, two fixed additional layers and movable additional layers which are contacted with each other form a friction power generation unit, and one or both of the fixed additional layer and the movable additional layer are composite layers; when the fixed additional layer is only a fixed electrode layer, the movable additional layer is a composite layer formed by a movable electrode layer and a movable electrification layer; when the movable additional layer is only a movable electrode layer, the fixed additional layer is a composite layer formed by a fixed electrode layer and a fixed electrification layer; the number and the center angle of fan-shaped elements uniformly distributed on the fixed additional layer and the movable additional layer are respectively equal, and the fan-shaped elements refer to a fan-shaped fixed electrode layer, a fixed electrification layer, a movable electrode layer and a movable electrification layer; the fixed electrode layer and the movable electrode layer are made of aluminum or copper; in a triboelectric power generation unit, the materials of the fixed and movable electrification layers are two materials which are far apart in the triboelectric series, such as nylon and polytetrafluoroethylene, aluminum and polytetrafluoroethylene, and the like.
In the invention, the pendulumThe disc and the swing arm are made of light nonmetallic materials, and the mass of the swing disc and the swing arm is far smaller than that of the frequency modulation block; the natural frequency of the exciter is determined by the structural size, the number, the spatial position parameters and the like of the wobble plate, the swing arm, the frequency modulation block and the frequency modulation spring, and the natural frequency of the exciter is adapted to the environmental vibration frequency, so that each rotating shaft generates a large enough swing angle; after other structures and parameters are determined, the natural frequency of the exciter is adjusted by the mass of the frequency modulation block on the swing arm, the rigidity of the frequency modulation spring and the installation positions of the frequency modulation block and the frequency modulation spring, and the natural frequency of the exciter is that
Wherein: ζ is damping ratio, k is rigidity of the frequency modulation springs, y1 and y2 are distances from the two frequency modulation springs to the center of the rotating shaft, and m and x are distances from the mass of the frequency modulation block and the mass center of the frequency modulation block to the center of the rotating shaft.
In operation, the generator is required to be packaged in the closed shell and fixed in the sea water through a spring or a flexible rope; under the impact of sea waves, the exciter swings reciprocally under the action of the frequency modulation block, the swinging exciter drives the turntables to rotate unidirectionally through the poking sheets, the rotation directions of the two turntables are opposite, and one turntable rotates clockwise and the other turntable rotates anticlockwise; the exciter swings back and forth once, and the two turntables rotate one step each, as shown in fig. 1, 2 and 3.
When the swing arm swings far in fig. 1, the left swing disc swings reversely in the tooth direction, namely the swing arm swings rightwards in fig. 2, the poking plate is propped against the long groove wall and the flat tooth surface, the poking plate cantilever is short in length and does not bend and deform, and the poking plate pushes the right turntable to rotate anticlockwise by one step through the flat tooth surface; meanwhile, the right wobble plate swings clockwise, namely the swing arm swings leftwards in fig. 3, the poking plate is separated from the long groove wall and is propped against the inclined tooth surface, the poking plate cantilever part is long and slides over the contacted inclined tooth surface after bending deformation, and enters the next tooth gap from one tooth gap; due to the friction force between the fixed disc and the movable disc, the rotary disc on the left side is kept relatively static, namely, does not rotate along with the swing of the swing disc.
When the swing arm swings nearby in fig. 1, the left swing disc swings clockwise in the tooth direction, namely the swing arm swings leftwards in fig. 2, the poking plate is separated from the long groove wall and is abutted against the inclined tooth surface, the poking plate cantilever part is long and slides over the contacted inclined tooth surface after bending deformation, and enters the next tooth gap, and the left rotary disc is kept relatively static; meanwhile, the right swing disc swings in the reverse direction, namely the swing arm swings rightwards in fig. 3, the poking piece is propped against the long groove wall and the flat tooth surface, the poking piece cantilever is short in length and does not bend and deform, and the poking piece pushes the left rotary disc to rotate clockwise by one step through the flat tooth surface.
In the step-by-step rotation process of the rotating disc driven by the exciter, the rotating disc drives the movable disc to rotate through the rotating shaft, the movable disc and the fixed disc slide relatively, mechanical energy is converted into electric energy, and the electric energy is stored or output after conversion treatment.
Advantages and features: vibration caused by waves is converted into continuous rotation, impact and noise caused by contact-separation type friction power generation are avoided, and a motion conversion mechanism is simple and reliable; the multiple groups of power generation units synchronously generate power, and the energy density per unit volume is high; the natural frequency of the excitation system is easy to obtain through spring stiffness and inertial mass design, the natural frequency is easy to adjust through changing the position of the inertial mass after leaving the factory, and the frequency modulation method is simple and wide in application range.
Drawings
FIG. 1 is a schematic diagram of a generator in accordance with a preferred embodiment of the present invention;
FIG. 2 is a view A-A of FIG. 1;
FIG. 3 is a view B-B of FIG. 1;
fig. 4 is an enlarged view of section I of fig. 1;
FIG. 5 is a schematic view of a frame in a preferred embodiment of the invention;
FIG. 6 is a left side view of FIG. 5;
FIG. 7 is a schematic view showing the structure of a stator according to a preferred embodiment of the present invention;
FIG. 8 is a left side view of FIG. 7;
FIG. 9 is a schematic view of the structure of a movable disk in a preferred embodiment of the present invention;
fig. 10 is a left side view of fig. 9;
FIG. 11 is a schematic diagram of a rotor structure in accordance with a preferred embodiment of the present invention;
FIG. 12 is a right side view of FIG. 11;
FIG. 13 is a schematic view of a wobble plate according to a preferred embodiment of the invention;
fig. 14 is a left side view of fig. 13;
fig. 15 is a schematic view showing the structure of a rotor according to a preferred embodiment of the present invention.
Detailed Description
A friction disk type wave generator mainly comprises a frame a, an end cover b, a rotating shaft c, a swing arm d, a force adjusting block e, a frequency adjusting block f, a force adjusting spring k1, a frequency adjusting spring k2, a flat key g, a swing disk h, a fixed disk j, a movable disk i, a poking piece m, a rotating disk n, and an exciter consisting of the swing disk h, the swing arm d, the frequency adjusting block f and the frequency adjusting spring k 2.
The frame a consists of two drums a0, a seat board a1 and two vertical plates a2, wherein the drum a0 consists of a drum wall a3 and a drum bottom a4, a drum groove a7 is arranged on the inner side of the drum wall a3 of the drum a0, and the drum groove a7 is an axial groove; the end cover b is arranged at the end part of the barrel wall a3 through screws, barrel bottom holes a5 and a group of uniformly distributed spring seat holes a6 are formed in the end cover b and the barrel bottom a4 of the barrel a0, and the spring seat holes a6 are blind holes and uniformly distributed on the circumference coaxial with the barrel bottom holes a 5; the drum a0 is mounted on the seat plate a1 via two vertical plates a2, and the bottoms a4 of the two drums a0 are mounted opposite to each other.
The rotating shaft c is composed of a thick shaft c1 and thin shafts c2 at two ends of the thick shaft c1, the thick shaft c1 and the thin shafts c2 are coaxial, a shaft groove a3 is formed in the thick shaft c1, and a key groove c4 is formed in the long thin shaft c 2.
The outer edge and the center of a fixed disk body j1 of the fixed disk j are respectively provided with a fixed disk bump j4 and a fixed disk hole j3, both sides of the fixed disk body j1 are provided with fixed additional layers j2, the fixed additional layers j2 are composite layers formed by fixed electrode layers j21 and fixed electrification layers j22, and the fixed electrode layers j21 are close to the fixed disk body j1; the fixed electrode layer j21 is of an integral annular structure, and the fixed electrode layer j21 and the fixed disc body j1 are respectively identical in shape and size; the fixed electrification layers j22 are of fan-shaped structures and are uniformly distributed, and the sum of central angles of the fixed electrification layers j22 is smaller than 180 degrees; or the fixed additional layer j2 is only the fixed electrode layer j21, the fixed electrode layers j21 are of fan-shaped structures and are uniformly distributed, and the sum of central angles of the fixed electrode layers j21 is smaller than 180 degrees.
A movable disc hole i3 is formed in the center of a movable disc body i1 of the movable disc i, movable disc projections i4 are arranged on the circumference of the movable disc hole i3, movable additional layers i2 are arranged on two sides of the movable disc body i1, the movable additional layers i2 are composite layers formed by movable electrode layers i21 and movable electrification layers i22, and the movable electrode layers i21 are close to the movable disc body i1; the movable electrode layer i21 is of an integral annular structure, and the shape and the size of the movable electrode layer i21 and the movable disc body i1 are respectively the same; the movable electrification layers i22 are of fan-shaped structures and are uniformly distributed, and the sum of central angles of the movable electrification layers i22 is smaller than 180 degrees; or the movable additional layer i2 is only the movable electrode layer i21, the movable electrode layers i21 are of a fan-shaped structure and are uniformly distributed, and the sum of central angles of the movable electrode layers i21 is smaller than 180 degrees.
An ear plate h1 is arranged on the outer edge of a swinging disc body h0 of the swinging disc h, a swinging disc hole h2 is formed in one side of the swinging disc body h0, a sinking cavity h3 is formed in the other side of the swinging disc body h0, slots h4 are uniformly distributed on the cavity wall of the sinking cavity h3, the slots h4 are parallel to the axis of the swinging disc body h0, the heights of two groove walls of the slots h4 are unequal, a long groove wall h5 is far higher than a short groove wall h6, and the plane where the short groove wall h6 is located passes through the axis of the swinging disc h; the slot h4 is internally embedded with a poking piece m, and the free end of the poking piece m is not contacted with the long groove wall h5, namely the length of the non-clamping part of the poking piece m is larger than the height of the long groove wall h 5.
The center of the turntable n is provided with a turntable hole n0, the outer edge of the turntable hole n0 is provided with convex teeth n1, the hole wall of the turntable hole n0 is provided with key grooves n2, the convex teeth n1 are uniformly distributed along the circumferential direction, each convex tooth n1 is composed of a flat tooth surface n3 and an inclined tooth surface n4, the plane where the flat tooth surface n3 is located passes through the center O of the turntable n, and a tooth tip angle n5 between the flat tooth surface n3 and the inclined tooth surface n4 is an acute angle.
A rotating shaft c is arranged in each of the two drums a0, the rotating shaft c is arranged on the drum bottom a4 and the end cover b through bearings, the inner rings of the bearings are sleeved on the thin shafts c2, and the outer rings of the bearings are arranged in drum bottom holes a5 on the drum bottom a4 and the end cover b; a thick shaft c1 of a rotating shaft c is arranged in a round barrel a0, a fixed disc j and a movable disc i are alternately sleeved on the thick shaft c1, the fixed disc j and the movable disc i are fixedly installed with the round barrel a0 and the rotating shaft c respectively, a fixed disc protruding block j4 and a movable disc protruding block i4 are inserted into a barrel groove a7 and a shaft groove a3 respectively, and the movable disc i rotates along with the rotating shaft c; the outermost fixed disk j sequentially presses the force adjusting block e and the force adjusting spring k1 in a spring seat hole a6 on the end cover b or the barrel bottom a 4; the thin shaft c2 of the rotating shaft c extends out from a barrel bottom hole a5 on the barrel bottom a4, a swinging disc h and a rotating disc n are sleeved on the extended thin shaft c2, the rotating disc n is positioned in a sinking cavity h3 of the swinging disc h, the free end of a shifting piece m is inserted into a tooth gap n6 of the rotating disc n, and the tooth gap n6 refers to a part between a flat tooth surface n3 and an inclined tooth surface n4 of two adjacent convex teeth n 1; the swinging disc hole h2 of the swinging disc h is sleeved on the thin shaft c2, the swinging disc h can rotate around the thin shaft c2, and the turntable hole n0 of the turntable n is sleeved on the thin shaft c2 and fixed through the flat key g; the extending ends of rotating shafts c arranged on two drums a0 are opposite, sinking cavities h3 of swinging plates h arranged on the two rotating shafts c are opposite, ear plates h1 of each swinging plate h are connected with one end of a swinging arm d through screws, a frequency modulation block f is arranged on the swinging arm d through screws, the swinging arm d is connected with two vertical plates a2 of a frame a through two frequency modulation springs k2, the mounting positions of the frequency modulation block f and the frequency modulation springs k2 on the swinging arm d are adjustable, and the frequency modulation springs k2 are perpendicular to the swinging arm d when the swinging arm is not in operation.
In the invention, the interaction force between the fixed disc j and the movable disc i can be adjusted by changing the thickness of the force adjusting block e.
In the invention, the swing arm d can be positioned in a vertical plane or a horizontal plane when not in operation and is respectively used for collecting the energy of transverse and longitudinal vibration; when the swing arm d is positioned in the horizontal plane, the distances from the two frequency modulation springs to the center of the rotating shaft c are unequal.
In the invention, two fixed additional layers j2 and movable additional layers i2 which are contacted with each other form a friction power generation unit, and one of the fixed additional layers j2 and the movable additional layers i2 is a composite layer or both the fixed additional layers j2 and the movable additional layers i2 are composite layers; when the fixed additional layer j2 is only the fixed electrode layer j21, the movable additional layer i2 is a composite layer composed of the movable electrode layer i21 and the movable electrode layer i22; when the movable additional layer i2 is only the movable electrode layer i21, the fixed additional layer j2 is a composite layer composed of a fixed electrode layer j21 and a fixed electrode layer j 22; the number and the center angle of fan-shaped elements uniformly distributed on the fixed additional layer j2 and the movable additional layer i2 are equal, and the fan-shaped elements refer to a fan-shaped fixed electrode layer j21, a fixed electrode layer j22, a movable electrode layer i21 and a movable electrode layer i22; the materials of the fixed electrode layer j21 and the movable electrode layer i21 are aluminum or copper; in a triboelectric power generation unit, the materials of the fixed electrification layer j22 and the movable electrification layer i22 are two materials which are far apart in the triboelectric series, such as nylon and polytetrafluoroethylene, aluminum and polytetrafluoroethylene, and the like.
In the invention, the swinging plate h and the swinging arm d are both made of light nonmetallic materials, and the mass of the swinging plate h and the swinging arm d is far smaller than that of the frequency modulation block f; wobble plate h, swing arm d, frequency modulation block f and frequency modulation spring k2, forming an exciter, wherein the natural frequency of the exciter is determined by the structural dimensions, the number, the spatial position parameters and the like of a swinging disc h, a swinging arm d, a frequency modulation block f and a frequency modulation spring k2, and the natural frequency of the exciter is adapted to the environmental vibration frequency, so that each rotating shaft c generates a large enough swinging angle; after other structures and parameters are determined, the natural frequency of the exciter is adjusted by the mass of the frequency modulation block f on the swing arm d, the rigidity of the frequency modulation spring k2 and the installation positions of the frequency modulation block f and the frequency modulation spring k2, and the natural frequency of the exciter is that
Wherein: ζ is damping ratio, k is stiffness of the wobble spring k2, y1 and y2 are distances from the two wobble springs k2 to the center of the rotating shaft c, and m and x are the mass of the wobble block f and the distance from the centroid of the wobble block f to the center of the rotating shaft c, respectively.
In operation, the generator is required to be packaged in the closed shell and fixed in the sea water through a spring or a flexible rope; under the impact of sea waves, the exciter swings reciprocally under the action of the frequency modulation block f, the swinging exciter drives the turntables n to rotate unidirectionally through the poking sheets m, the rotation directions of the two turntables n are opposite, and one turntable rotates clockwise and the other turntable rotates anticlockwise; the exciter swings back and forth once, and the two turntables n rotate one step each, as shown in fig. 1, 2 and 3.
When the swing arm d swings far, the left swing disc h swings reversely in a tooth direction, namely, the swing arm d swings rightwards in fig. 2, the poking plate m is propped against the long groove wall h5 and the flat tooth surface n3, the cantilever length of the poking plate m is short and no bending deformation occurs, and the poking plate m pushes the right rotary disc n to rotate anticlockwise by one step through the flat tooth surface n 3; simultaneously, the right swing disc h swings clockwise, namely the swing arm d swings leftwards in fig. 3, the shifting sheet m is separated from the long groove wall h5 and is propped against the inclined tooth surface n4, the cantilever part of the shifting sheet m is long and slides over the contacted inclined tooth surface n4 after bending deformation, and enters the next tooth gap n6 from one tooth gap n 6; the left turntable n remains relatively stationary, i.e. does not rotate with the wobble of the wobble plate h, due to the friction between the fixed and movable disks j, i.
When the swing arm d swings nearby in fig. 1, the left swing disc h swings clockwise, namely, the swing arm swings leftwards in fig. 2, the shifting sheet m is separated from the long groove wall h5 and is propped against the inclined tooth surface n4, the cantilever part of the shifting sheet m is long and slides over the contacted inclined tooth surface n4 after bending deformation, and enters the next tooth gap n6, and the left rotary disc n is kept relatively static; meanwhile, the right swing disc h swings reversely in a tooth direction, namely the swing arm swings rightwards in fig. 3, the poking piece m abuts against the long groove wall h5 and the flat tooth surface n3, the cantilever length of the poking piece m is short and bending deformation does not occur, and the poking piece m pushes the left rotary disc n to rotate one step clockwise through the flat tooth surface n 3.
In the step-by-step rotation process of the rotating disc n driven by the exciter, the rotating disc n drives the movable disc i to rotate through the rotating shaft c, the movable disc i and the fixed disc j slide relatively and convert mechanical energy into electric energy, and the electric energy is stored or output after conversion treatment.
Claims (3)
1. The utility model provides a friction disk type wave generator which characterized in that: the round barrel is arranged on the seat board through the vertical plate and forms a frame, and a barrel groove is arranged on the inner side of the barrel wall of the round barrel; the barrel bottom of the barrel is provided with barrel bottom holes and uniformly distributed spring seat holes on end covers at the end parts of the barrel wall; the rotating shaft consists of a thick shaft with a shaft groove and thin shafts at two ends of the thick shaft; the outer edge and the center of the fixed disk body of the fixed disk are respectively provided with a fixed disk lug and a fixed disk hole, and both sides of the fixed disk body are provided with fixed additional layers; a movable disc lug is arranged on the side wall of a movable disc hole in the center of a movable disc body of the movable disc, and movable additional layers are arranged on two sides of the movable disc body; the outer edge of the swinging disc body of the swinging disc is provided with an ear plate, one side of the swinging disc body is provided with a swinging disc hole, the other side of the swinging disc body is provided with a sinking cavity, the cavity wall of the sinking cavity is uniformly distributed with slots, and a poking piece is embedded in each slot; the heights of the two groove walls of the slot are different, and the wall of the long groove is far higher than the wall of the short groove; the convex teeth are formed by a flat tooth surface and an inclined tooth surface, the flat tooth surface and the plane of the short groove wall of the slot are uniformly distributed on the outer edge of the axis turntable of the pendulum shaft, and key grooves are formed on the wall of the turntable hole; the rotary shaft is arranged on the barrel bottom and the end cover, the thick shaft in the barrel is alternately sleeved with a fixed disk and a movable disk, and the fixed disk lug and the movable disk lug are respectively inserted into the barrel groove and the shaft groove; the outermost fixed disk sequentially presses the force adjusting block and the force adjusting spring into a spring seat hole on the end cover or the barrel bottom; a thin shaft at one end of the rotating shaft extends out through a barrel bottom hole and is sleeved with a swinging disc and a rotating disc, and the free end of a poking piece is inserted into a tooth gap of the rotating disc; the swinging disc can rotate around the thin shaft, and the swinging disc is fixed on the thin shaft through a flat key; the sinking cavities of the swinging plates arranged on the two rotating shafts are opposite; the ear plates of the two swing plates are connected with the end parts of the swing arms, the swing arms are provided with frequency modulation blocks, the swing arms are connected with the vertical plates of the frame through frequency modulation springs, and the installation positions of the frequency modulation blocks and the frequency modulation springs on the swing arms are adjustable.
2. A friction disk type wave generator according to claim 1, characterized in that: one or both of the fixed additional layer and the movable additional layer are composite layers; when the fixed additional layer is only a fixed electrode layer, the movable additional layer is composed of a movable electrode layer and a movable electrification layer; when the active additional layer is only the active electrode layer, the fixed additional layer is composed of the fixed electrode layer and the fixed electrode layer.
3. A friction disk type wave generator according to claim 1, characterized in that: the swing arm may be vertically in a vertical plane or in a horizontal plane for collecting energy of lateral and longitudinal vibrations, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111416563.5A CN114033603B (en) | 2021-11-26 | 2021-11-26 | Friction disk type wave generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111416563.5A CN114033603B (en) | 2021-11-26 | 2021-11-26 | Friction disk type wave generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114033603A CN114033603A (en) | 2022-02-11 |
| CN114033603B true CN114033603B (en) | 2023-05-12 |
Family
ID=80138904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111416563.5A Active CN114033603B (en) | 2021-11-26 | 2021-11-26 | Friction disk type wave generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114033603B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013115581A1 (en) * | 2012-02-03 | 2013-08-08 | Han Young Hwan | Wave power generation apparatus |
| RU2012126576A (en) * | 2012-06-25 | 2013-12-27 | Валентин Алексеевич Настасенко | FLOATING COASTAL HYDROWAVE POWER PLANT |
| CN104426419A (en) * | 2013-09-05 | 2015-03-18 | 纳米新能源（唐山）有限责任公司 | Friction power generating and electromagnetic power generating hybrid power generating system |
| CN105134465A (en) * | 2015-08-26 | 2015-12-09 | 哈尔滨工业大学 | Fluid dynamic energy conversion device imitating tail fin swing vibration excitation |
| CN105356790A (en) * | 2015-11-16 | 2016-02-24 | 中北大学 | Friction-piezoelectric-magnetoelectric compound three-dimensional space multi-degree-of-freedom micro-energy acquisition device |
| CN106609722A (en) * | 2015-12-31 | 2017-05-03 | 北京纳米能源与系统研究所 | Power generation system and power generation network |
| CN206775410U (en) * | 2017-06-05 | 2017-12-19 | 合肥工业大学 | A kind of spiral shakes ball nano friction TRT |
| CN112152508A (en) * | 2020-11-15 | 2020-12-29 | 浙江师范大学 | Rotary excitation friction-piezoelectric composite generator |
| CN112886853A (en) * | 2021-01-20 | 2021-06-01 | 河海大学常州校区 | Novel composite material and swing type friction nano generator using same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332472B (en) * | 2017-08-17 | 2023-03-21 | 浙江师范大学 | Swing energy harvester |
| CN113306657B (en) * | 2021-07-05 | 2023-03-24 | 浙江师范大学 | Bicycle lamp |
-
2021
- 2021-11-26 CN CN202111416563.5A patent/CN114033603B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013115581A1 (en) * | 2012-02-03 | 2013-08-08 | Han Young Hwan | Wave power generation apparatus |
| RU2012126576A (en) * | 2012-06-25 | 2013-12-27 | Валентин Алексеевич Настасенко | FLOATING COASTAL HYDROWAVE POWER PLANT |
| CN104426419A (en) * | 2013-09-05 | 2015-03-18 | 纳米新能源（唐山）有限责任公司 | Friction power generating and electromagnetic power generating hybrid power generating system |
| CN105134465A (en) * | 2015-08-26 | 2015-12-09 | 哈尔滨工业大学 | Fluid dynamic energy conversion device imitating tail fin swing vibration excitation |
| CN105356790A (en) * | 2015-11-16 | 2016-02-24 | 中北大学 | Friction-piezoelectric-magnetoelectric compound three-dimensional space multi-degree-of-freedom micro-energy acquisition device |
| CN106609722A (en) * | 2015-12-31 | 2017-05-03 | 北京纳米能源与系统研究所 | Power generation system and power generation network |
| CN206775410U (en) * | 2017-06-05 | 2017-12-19 | 合肥工业大学 | A kind of spiral shakes ball nano friction TRT |
| CN112152508A (en) * | 2020-11-15 | 2020-12-29 | 浙江师范大学 | Rotary excitation friction-piezoelectric composite generator |
| CN112886853A (en) * | 2021-01-20 | 2021-06-01 | 河海大学常州校区 | Novel composite material and swing type friction nano generator using same |
Non-Patent Citations (1)
| Title |
|---|
| "基于非对称夹持的压电旋转驱动器设计";温建明等;《中国机械工程》;第27卷(第8期);第1026-1031页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114033603A (en) | 2022-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021077854A1 (en) | Compound pendulum frequency-raising type wave energy collection device | |
| CN103259452B (en) | Shaft-end overhung piezoelectric cantilever beam electric generator | |
| CN112152508B (en) | Rotary excitation friction-piezoelectric composite generator | |
| CN110011562B (en) | Oscillating friction nano generator | |
| CN112187102B (en) | Rotary excitation swing type piezoelectric-friction generator | |
| CN112187104B (en) | Rotary piezoelectric-friction composite generator | |
| CN113250893A (en) | Vertical pendulum frequency-raising type wave energy collecting device and carrying equipment | |
| CN102832846A (en) | Shaft power generator based on axial flexural vibration of piezoelectric vibrator of cantilever beam | |
| CN112737407A (en) | Piezoelectric power generation system for capturing wave energy | |
| CN110504860B (en) | Stack type rotary electrostatic generator | |
| Du et al. | Recent advances in mechanical vibration energy harvesters based on triboelectric nanogenerators | |
| CN104578909A (en) | Axial-tension-energized rotary wind driven generator | |
| CN114033603B (en) | Friction disk type wave generator | |
| CN106014887A (en) | Suspension self-excitation runner piezoelectric beam energy harvester | |
| CN103312215A (en) | Shaft end overhanging-type piezoelectric beam generator based on clamp limit | |
| CN107359814B (en) | Rotary piezoelectric wind driven generator | |
| CN114033604B (en) | Friction cylinder type sea wave generator | |
| CN211082122U (en) | Compound pendulum frequency-raising type wave energy collecting device | |
| CN113271034B (en) | Non-contact indirect excitation dual-purpose generator | |
| CN202231635U (en) | Double-vibrator parallel travelling wave type ultrasonic motor | |
| CN214366521U (en) | Piezoelectric and electromagnetic combined type power generation device for capturing wave energy | |
| CN114050736B (en) | Flow vibration-rotation type friction generator | |
| CN114337352A (en) | Intermittent sliding friction self-excitation synchronous nano generator | |
| CN110912453B (en) | Wind-induced rotary piezoelectric energy harvester | |
| CN113437899A (en) | Follow-up rotating body monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |