Wave energy power generation device

Abstract

The present invention provides a wave energy power generation device, which includes a floating body driven by the rise and fall of waves. One end in the length direction is the loading end, and the other end is a rack assembly that protrudes from the top of the floating body through its bottom floating surface. The protruding direction of the rack assembly is perpendicular to the floating surface. A flywheel assembly is arranged inside the housing of the floating body. The rotating shaft of the flywheel assembly is arranged in the same direction as the rack assembly. During the up and down floating of the floating body, power is input through the gear-rack structure with the rack assembly for power generation. A flywheel assembly is arranged inside the floating body. During the power generation process, the flywheel assembly rotates inside the floating body. The rotating shaft of the flywheel assembly is arranged in the same direction as the rack assembly, so that during the up and down floating of the floating body, the flywheel assembly improves the running stability of the floating body on the wave surface, and can improve the energy storage capacity during the power generation process through the rotation of the flywheel assembly, thereby improving the power generation capacity.

Description

Technical Field

[0001] The present invention relates to the technical field of wave energy, and more specifically, to a wave energy power generation device. Background Art

[0002] Ocean energy accounts for about 70% of the world's total energy. Wave energy is one of the ocean energies in the form of kinetic energy. The globally exploitable wave energy is 2 billion to 3 billion kW, which is a clean energy with great value. The point-absorbing ocean wave energy power generation device is a relatively well-developed wave energy conversion device at present and is suitable for countries with low wave energy density such as China. So far, there has been no wave energy power generation system that can operate stably for a long time and be commercially mature.

[0003] In the existing wave energy power generation system, the wave energy is transmitted from reciprocating motion to unidirectional rotational motion through a certain transmission mechanism to drive the generator to generate electricity. For example, a mechanical device using a rack, gears and a ratchet mechanism. As the wave rises and falls, the rack rises and falls together with the float, driving the left and right gears meshing with it to rotate reciprocally. Each gear is connected to the shaft by a ratchet mechanism. When the rack rises, the left gear drives its shaft to rotate counterclockwise, and the right gear rotates clockwise idly. Through the transmission of the subsequent stage of gears, the generator is driven to rotate clockwise to generate electricity.

[0004] The existing technologies and device structures are complex, bulky, unreliable, difficult to operate and maintain, and have poor resistance to bad weather such as wind and waves, and cannot operate stably in the marine environment for a long time; the power generation ability is poor when the float descends with the wave, that is, only half-wave power generation can be realized, the power generation amount is small, and the utilization rate of seawater wave energy is low.

[0005] Therefore, how to optimize the power generation structure of the wave energy power generation device is an urgent problem to be solved by those skilled in the art at present. Summary of the Invention

[0006] In view of this, the present invention provides a wave energy power generation device to optimize the power generation structure of the wave energy power generation device.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A wave energy power generation device includes a floating body driven by the rise and fall of waves,

[0009] One end in the length direction is a mounting end, and the other end is a rack assembly that penetrates from the top of the floating body and extends out of its bottom floating surface. A power input gear is arranged on the floating body and is power-connected to the rack assembly;

[0010] The extending direction of the rack assembly is perpendicular to the floating surface;

[0011] A flywheel assembly is arranged inside the housing of the floating body, and the flywheel assembly receives rotational power input from the rack assembly.

[0012] The rotating shaft of the flywheel assembly is arranged in the same direction as the rack assembly.

[0013] Preferably, in the above wave energy power generation device, a gearbox driven by the rack assembly and a generator dragged by the gearbox are arranged inside the floating body.

[0014] The flywheel assembly includes a flywheel driving wheel arranged on the inner circle, a flywheel arranged on the outer circle, and a flywheel connecting piece for mounting the two.

[0015] The flywheel driving wheel is power-mated between the output gear of the gearbox and the driving gear of the generator.

[0016] Preferably, in the above wave energy power generation device, the output gear and the driving gear are mounted on both sides of the flywheel driving wheel in the radial direction.

[0017] Preferably, in the above wave energy power generation device, both the gearbox and the generator are mounted inside the housing and are respectively located on both sides of the flywheel driving wheel in the radial direction.

[0018] Preferably, in the above wave energy power generation device, the gearbox is mounted inside the housing.

[0019] The generator has a stator coil fixedly installed in the housing and is located between the flywheel and the flywheel driving wheel.

[0020] The magnetic poles of the generator are arranged on the inner circle of the flywheel, which is an integrated generator.

[0021] Preferably, in the above wave energy power generation device, the rack assembly includes a rack body, a guiding slide bar parallel to the rack body, and upper and lower mounting seats for mounting both ends of the rack body and the guiding slide bar in the length direction.

[0022] A power chamber for accommodating the sliding of the rack assembly extends coaxially from the housing. A first avoidance hole for avoiding the rack body and a first guiding hole for slidingly cooperating with the guiding slide bar are provided on the bottom wall of the power chamber.

[0023] Second avoidance holes and second guiding holes for mounting the rack assembly are provided on the flywheel driving wheel, corresponding to the positions of the first avoidance hole and the first guiding hole.

[0024] Preferably, in the above wave energy power generation device, the flywheel driving wheel includes a tooth ring that is power-mated with the output gear and the driving gear.

[0025] A support bearing for mounting the tooth ring.

[0026] Mount the support bearing and a base installed from the bottom of the power chamber;

[0027] The inner end of the flywheel connecting member is fixedly installed at one axial end of the gear ring.

[0028] Preferably, in the above wave energy power generation device, the flywheel connecting member includes a support rod mounted between the flywheel drive wheel and the flywheel,

[0029] A slidable mass slider is sleeved on the support rod,

[0030] and a support spring connecting the mass slider and the flywheel.

[0031] Preferably, in the above wave energy power generation device, elastic buffer struts for colliding and buffering with the floating body are provided on the inner end faces of the upper mounting seat and the lower mounting seat.

[0032] Preferably, in the above wave energy power generation device, the housing is an inverted cylindrical structure, and a water storage bladder for adjusting its own weight is sleeved on the outer ring of the housing,

[0033] A floating body bladder is arranged on the top of the housing and sleeved on the outer ring of the power chamber,

[0034] The floating body bladder abuts against the bottom wall of the cylindrical structure of the housing;

[0035] The lower end of the gearbox extends out a power input gear dragged by the rack assembly. A one-way bearing group sleeved on the gear shaft of the power input gear is arranged inside the gearbox, and a speed increasing gear group cooperated with the one-way bearing group. The output gear is connected to the output end of the speed increasing gear group.

[0036] The wave energy power generation device provided by the present invention includes a floating body driven by wave fluctuations. One end in the length direction is a carrying end, and the other end is a rack assembly that penetrates from the top of the floating body and extends out of its bottom floating surface; the extending direction of the rack assembly and the floating surface meet the perpendicular condition; a flywheel assembly is arranged inside the housing of the floating body; the rotation axis of the flywheel assembly is arranged in the same direction as the rack assembly. The floating body floats on the wave surface and floats up and down with the wave fluctuations. The rack assembly is positioned and installed at its carrying end, penetrates into the floating body in the length direction, and cooperates with the power input gear. The rack assembly and the floating surface of the floating body meet the perpendicular condition. During the up and down floating process of the floating body, power input is carried out through the gear-rack structure with the rack assembly for power generation. A flywheel assembly is arranged inside the floating body. During the power generation process, the flywheel assembly rotates inside the floating body. The rotation axis of the flywheel assembly is arranged in the same direction as the rack assembly, so that during the up and down floating of the floating body on the wave, the flywheel assembly improves the running stability of the floating body on the wave surface, and the energy storage capacity during the power generation process can be improved through the rotation of the flywheel assembly, and the power generation capacity is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0038] Figure 1 The front view of the wave energy power generation device provided by the present invention;

[0039] Figure 2 is Figure 1 The internal structure schematic diagram (without the housing) of the wave energy power generation device in

[0040] Figure 3 is Figure 1 The structure schematic diagram of the flywheel assembly in the wave energy power generation device in

[0041] Figure 4 is Figure 1 The housing installation structure schematic diagram of the wave energy power generation device in

[0042] Figure 5 is Figure 1 The structure schematic diagram of the rack assembly in the wave energy power generation device in

[0043] Figure 6 is Figure 1 The internal layout structure schematic diagram of the gearbox in the wave energy power generation device in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] The present invention discloses a wave energy power generation device, which optimizes the power generation structure of the wave energy power generation device.

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0046] As Figures 1-6 shown Figure 1 The front view of the wave energy power generation device provided by the present invention; Figure 2 is Figure 1 The internal structure schematic diagram (without the housing) of the wave energy power generation device in Figure 3 is Figure 1 The structure schematic diagram of the flywheel assembly in the wave energy power generation device inFigure 4 for Figure 1 Schematic diagram of the shell installation structure of the medium wave energy power generation device; Figure 5 for Figure 1 A schematic diagram of the structure of a rack assembly in a medium wave energy power generation device; Figure 6 for Figure 1 Schematic diagram of the internal layout of the gearbox of the medium wave energy power generation device.

[0047] This embodiment provides a wave energy power generation device, including a floating body 1 driven by wave fluctuations, one end in the length direction is a carrying end, and the other end is a rack assembly 2 inserted from the top of the floating body 1 and extending from the bottom buoyancy surface thereof, and a power input gear 31 connected to the rack assembly 2 is provided on the floating body 1. The top of the rack assembly 2 can be fixed on a supporting structure such as an offshore platform or an offshore pile foundation, or it can be installed on a floating object on the sea surface. The floating object is positioned by anchoring, can generate electricity alone, and provide a single power supply for ocean monitoring stations, ocean navigation lights, offshore communication equipment, etc., or it can form a power generation array to form a large-scale power generation system and be incorporated into the power grid.

[0048] The extending direction of the rack assembly 2 meets the vertical condition with the floating surface. The top of the rack assembly 2 is fixed to the positioning structure. The floating body 1 floats up and down with the rise and fall of waves. The rack assembly 2 and the bottom floating surface of the floating body 1 are arranged to meet the vertical condition, that is, the two are in a basically vertical arrangement, preferably a vertical structure, to ensure the stability of the power input of the rack assembly 2 and the power input gear 31.

[0049] A flywheel assembly 5 is disposed in the housing 11 of the floating body 1 , and the flywheel assembly 5 receives rotational power from the rack assembly 2 ; the rotation axis of the flywheel assembly 5 is arranged in the same direction as the rack assembly 2 . The floating body 1 floats on the wave surface and moves up and down with the rise and fall of waves. The rack assembly 2 is positioned and installed by its carrying end and inserted into the floating body 1 in the length direction. The rack assembly 2 and the floating surface of the floating body 1 meet the vertical condition. During the floating body 1 floating up and down, power is input to the rack assembly 2 through the gear rack structure to generate electricity. A flywheel assembly 5 is arranged inside the floating body 1. During the power generation process, the power input by the rack assembly 2 also drives the flywheel assembly 5 to rotate. The flywheel assembly 5 rotates inside the floating body. The rotating shaft of the flywheel assembly 5 is arranged in the same direction as the rack assembly 2, so that during the floating body 1 floating up and down against the waves, the flywheel assembly 5 ensures that the floating body 1 swings in the plane to reduce shaking. The flywheel assembly 5 improves the operating stability of the floating body 1 on the wave surface, and can improve the energy storage capacity during the power generation process through the rotation of the flywheel assembly 5. The rotation of the flywheel assembly 5 is used to ensure the continuity of power input during the power input process, thereby improving the power generation capacity.

[0050] In a specific embodiment of this case, a gearbox 3 driven by a rack assembly 2 and a generator 4 driven by the gearbox 3 are arranged inside the floating body 1. The power input gear 31 of the gearbox 3 is in gear-rack engagement with the rack assembly 2 for power input. Through the speed-changing function of the gearbox 3, the output gear 32 outputs the power to drive the drive gear 41 of the generator 4 to rotate, thereby driving the generator to generate electricity.

[0051] The flywheel assembly 5 includes a flywheel drive wheel 51 arranged on the inner ring, a flywheel 53 arranged on the outer ring, and a flywheel connecting member 52 for mounting the two. The flywheel drive wheel 51 is in power engagement between the output gear 32 of the gearbox 3 and the drive gear 41 of the generator 4. To ensure the stability during the gear transmission process, the flywheel assembly 5 is driven during the power transmission between the gearbox 3 and the generator 4.

[0052] Specifically, the inner ring of the flywheel assembly 5 is set as the flywheel drive wheel 51. The output gear 32 and the drive gear 41 are both power-connected to the flywheel drive wheel 5. The flywheel drive wheel 51 and the flywheel 53 are coaxially arranged on the inner and outer rings, and the two are connected by the flywheel connecting member 52, so that the flywheel 53 surrounds the circumference of the gear transmission structure, and the stability during the gear transmission process is ensured by the rotation of the flywheel.

[0053] Preferably, the output gear 32 and the drive gear 41 are mounted on both sides of the radial direction of the flywheel drive wheel 51. The output gear 32 and the drive gear 41 are basically symmetrically located at both ends of the radial direction of the flywheel drive wheel 51 to ensure balance.

[0054] Further, both the gearbox 3 and the generator 4 are mounted inside the housing 11 and are respectively located on both sides of the radial direction of the flywheel drive wheel 51. The floating body 1 and the rack assembly 2 mainly move relatively up and down. Therefore, the unbalance of the gear rotation in the floating body 1 in the circumferential direction of the floating body 1 should be minimized as much as possible. The gearbox 3 and the generator 4 are respectively arranged on both sides of the flywheel drive wheel 51, and the center of gravity of the floating body 1 is preferably set at a middle position, and preferably the weights of the two are basically equal to improve the balance ability during the rotation of the flywheel 53. Further, the rack assembly 2 is arranged at the central position in the axial direction of the floating body 1 to improve the balance ability.

[0055] In a specific embodiment of this case, the gearbox 3 is mounted inside the housing 11; the generator 4 is an integrated generator with a stator coil fixed to the housing and located between the flywheel and the flywheel drive wheel, and the magnetic poles of the generator are arranged on the inner ring of the flywheel. To adapt to the flywheel assembly arranged inside the floating body and utilize the rotation of the flywheel assembly during the floating process of the floating body, the generator can adopt an integrated structure. The stator coil of the generator is fixed inside the housing, and specifically can be wound on the support structure of the flywheel drive wheel. The flywheel rotates continuously during operation, and the magnetic poles of the generator are fixed to the inner ring of the flywheel. Through the rotation of the flywheel, the magnetic poles cut the stator coil to complete power generation.

[0056] In a specific embodiment of this case, the rack assembly 2 includes a rack body 21, a guiding slide bar 22 parallel to the rack body 21, and upper mounting seats 23 and lower mounting seats 24 mounted at both ends of the two in the length direction. During the process of the floating body 1 floating up and down with the waves, the rack assembly 21 slides up and down in the middle of the floating body 1. It should be ensured that the rack body 21 of the rack assembly 2 is stably engaged with the power input gear 31 of the gearbox 3. The guiding slide bar 22 is simultaneously arranged on the rack assembly 2, preferably two are set. The upper mounting seat 23 and the lower mounting seat 24 respectively fix the two ends of the rack body 21 and the guiding slide bar 22. The guiding slide bar 22 is slidably matched with the floating body 1, thereby ensuring the meshing stability of the rack body 21.

[0057] A power cavity 12 for accommodating the sliding of the rack assembly 2 extends coaxially from the housing 11. A first avoidance hole 13 for avoiding the rack body 21 and a first guiding hole 14 for slidably matching with the guiding slide bar 22 are opened on the bottom wall of the power cavity 12; a second avoidance hole 513 and a second guiding hole 514 for mounting the rack assembly are opened on the flywheel driving wheel 51, which correspond to the positions of the first avoidance hole 13 and the first guiding hole 13.

[0058] The rack assembly 21 passes through the center of the floating body 1, and an independent power cavity 12 is provided for accommodating the rack assembly 2 to avoid sliding interference. The power cavity 12 is arranged in a cylindrical structure and coaxially arranged with the housing of the floating body 1. The power cavity 12 extends out of the surface of the housing 11. Its bottom wall (the power cavity 12 is an inverted structure, and this bottom wall refers to Figure 2 the top of the power cavity 12 in the middle) is provided with a first avoidance hole 12 to realize the meshing and sliding of the rack body 2 and the power input gear 31. A first guiding hole 14 is simultaneously opened on the bottom wall of the power cavity 12, and the guiding slide bar 22 slides in the first guiding hole 14.

[0059] The flywheel assembly 6 is located inside the floating body 1. The flywheel driving wheel 51 on its inner ring is coaxially arranged with the housing 11, and a second avoidance hole 513 and a second guiding hole 514 corresponding to the positions of the first avoidance hole 13 and the first guiding hole 14 are opened thereon, so that the sliding of the guiding slide bar 22 is supported by two points of the first guiding hole 14 and the second guiding hole 514 at the same time, further improving the cooperation stability between the floating body 1 and the rack assembly during the up and down floating process.

[0060] In a specific embodiment of this case, the flywheel drive wheel 51 includes a gear ring 511 that is power-mated with the output gear 32 and the drive gear 31, a support bearing for mounting the gear ring, a support bearing for mounting, and a base 512 that is inserted into the bottom of the power chamber 12. To accommodate the need to mount the rack assembly 2 inside the flywheel drive wheel 51 and at the same time enable it to rotate and cooperate with the output gear 32 and the drive gear 31 for power transmission. The flywheel drive wheel 51 is arranged to be installed at the bottom of the power chamber 12 by the base 512. Preferably, the base 512 is of a columnar structure and is inserted into the lower end of the power chamber 12 using external threads. The flywheel drive wheel 51 is provided with a support bearing sleeved on the outer ring of the base 512, and the gear ring 511 is sleeved on the support bearing, meeting the requirements for power transmission and the support ability for the rack assembly 2.

[0061] The flywheel 53 is dragged by the rotation of the flywheel drive wheel 51. The inner end of the flywheel connecting member 52 is fixedly installed at one axial end of the gear ring 511, and the other end of the flywheel connecting member 52 is fixedly installed on the inner ring of the flywheel 53, driving the movement of the flywheel by the rotation of the gear ring 511.

[0062] In a specific embodiment of this case, the flywheel connecting member 52 includes a support rod 521 mounted between the flywheel drive wheel 51 and the flywheel 53. A slidable mass slider 522 is sleeved on the support rod 521, and a support spring 523 connecting the mass slider 522 and the flywheel 53. Between the floating body 1 and the rack assembly 2, the stability during the up-and-down floating process is ensured through the installation and positioning at the top of the rack assembly 2 and the guide slide rod 22 between the rack assembly 2 and the floating body 1. Considering the impact on the floating body during the wave fluctuation process, the flywheel connecting member 52 is arranged to be positioned and connected to the flywheel drive wheel 51 and the flywheel 53 by the support rod, ensuring the stable rotational position of the flywheel 53 inside the floating body 1. The telescopic end of the support rod 521 is provided with the support spring 523, which connects the slidable mass slider 522 and is positioned and connected to the flywheel 53 end. When the floating body 1 tilts and swings due to impact, and the rotation plane of the flywheel 53 is tilted by the wave, the mass slider 522 is unbalanced during the rotation process, and the stretching lengths of the support springs 523 by the mass sliders 522 on the three support rods 521 are different. The rotation center of the flywheel 53 deviates from the flywheel drive wheel 51, using the rotation of the flywheel 53 to improve the balance ability of the floating body 1. By setting the mass slider 522 with a telescopic structure of the flywheel connecting rod 52, the dynamic balance ability of the floating body 1 is improved. Due to the change in the rotation center position of the flywheel 1, its moment of inertia is variable with the floating of the floating body, which is beneficial to the stable rotation speed of the generator and the stable output of electric energy.

[0063] In a specific embodiment of the present case, the inner end faces of the upper mounting seat 23 and the lower mounting seat 24 are both provided with elastic buffer struts 25 for collision buffering with the floating body 1. Since the top of the rack assembly 2 adopts a fixed mounting structure, when the waves are large, it is easy to cause the floating body 1 to impact with the upper mounting seat 23 and the lower mounting seat 24 during the movement. By providing the elastic buffer struts 25, when the floating body floats excessively, the elastic buffer struts 25 of the rod-shaped structure will collide with the top or bottom of the floating body 1 for buffering. The contact area is small, which avoids damage to the mounting structure of the rack assembly, and the elastic buffer is used to ensure the safety of the top and bottom of the floating body. The rack body and the two guide slide bars are arranged in an equilateral triangle structure, and the elastic buffer rod is located between the three to optimize the configuration of the center of gravity of the rack assembly.

[0064] In a specific embodiment of the present case, the shell 11 is an inverted cylindrical structure, and the outer ring of the shell 11 is equipped with a water storage bladder 6 for adjusting its deadweight. The shell adopts an inverted cylindrical structure, and the bottom wall of the cylindrical structure is arranged upward, which is used to mount the power chamber 12 and the flywheel assembly 5. The gear box 3 and the generator 4 are both located inside the cylindrical structure to avoid direct impact when the waves are large, thereby improving safety. The outer ring of the shell 11 is equipped with a circle of water storage bladders 6, which can inhale and discharge seawater to adjust the weight of the floating body 1. The floating body 1 can also generate electricity during the descent process, realizing full-wave power generation, and the wave energy utilization rate is high.

[0065] The top of the shell 11 is arranged with a floating bladder 7 which is sleeved on the outer ring of the power chamber 12, and the floating bladder 7 is close to the bottom wall of the cylindrical structure of the shell 11. The power chamber 12 extends from the shell, and the floating bladder 7 is mounted on the outer ring of the power chamber 12, and the floating bladder 7 is arranged in close contact with the bottom wall of the shell 11. The bottom wall of the cylindrical structure of the floating body 1 and the floating bladder 7 are used to internally install the transmission parts on the floating body 1, reduce the exposed moving parts, improve the working reliability of the whole machine, and enhance the anti-seawater corrosion ability.

[0066] The lower end of the gearbox 3 extends out of the power input gear 31 dragged by the rack assembly 2. The gearbox 3 is internally arranged with a one-way bearing group 33 sleeved on the gear shaft of the power input gear 31, a speed-increasing gear group 34 matched by the one-way bearing group, and an output gear connected to the output end of the speed-increasing gear group 33. The gearbox 3 adopts the one-way bearing group 33, so that the floating body can input power to the rack assembly 2 during the floating process. The gearbox 3 is also provided with a speed-increasing gear group 34, which transmits power to the output gear 32 through the bevel gear 35, thereby improving the rotation ability and the power generation ability.

[0067] Through the transmission structure of the gearbox 3 and the structural arrangement of the flywheel assembly 5, the horizontal radius of the wave energy power generation device provided in this embodiment can be as small as 0.5 meters. It has a small shape, light weight, simple operation and maintenance. By using a water storage bladder and a floating bladder with adjustable water storage capacity, the self-weight can be adjusted according to the wave height, and power can also be generated during the descent of the device, realizing full-wave power generation with high wave energy utilization rate. At the same time, the improved transmission structure makes the device light in weight, capable of normal startup under small waves, with a wide wave height applicable range and strong wave energy acquisition ability.

[0068] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wave energy power generation device, characterized in that, Comprising a floating body driven by wave fluctuations, One end in the length direction is the mounting end, and the other end is a rack assembly that protrudes from the top of the floating body through its bottom floating surface. A power input gear is arranged on the floating body and is power-connected to the rack assembly; The protruding direction of the rack assembly is perpendicular to the floating surface; A flywheel assembly is arranged inside the housing of the floating body, and the flywheel assembly is input with rotational power by the rack assembly; The rotating shaft of the flywheel assembly is arranged in the same direction as the rack assembly; A gearbox driven by the rack assembly and a generator dragged by the gearbox are arranged inside the floating body; The flywheel assembly includes a flywheel drive wheel arranged on the inner ring, a flywheel arranged on the outer ring, and a flywheel connecting piece that mounts the two; The flywheel drive wheel is power-matched between the output gear of the gearbox and the drive gear of the generator; The flywheel connecting piece includes three support rods mounted between the flywheel drive wheel and the flywheel, A slidable mass slider is sleeved on the support rod, And a support spring connecting the mass slider and the flywheel; Both the gearbox and the generator are mounted inside the housing and are respectively located on both sides of the flywheel drive wheel in the radial direction.

2. The wave energy power generation device according to claim 1, wherein The output gear and the drive gear are mounted on both sides of the flywheel drive wheel in the radial direction.

3. The wave energy power generation device according to claim 2, characterized in that, The gearbox is mounted inside the housing; The generator is a stator coil fixedly installed in the housing and is located between the flywheel and the flywheel drive wheel, The magnetic poles of the generator are arranged on the inner ring of the flywheel, which is an integrated generator.

4. The wave energy power generation device according to claim 1, wherein The rack assembly includes a rack main body, a guide slide rod parallel to the rack main body, and upper mounting seats and lower mounting seats that mount both ends in the length direction; A power cavity for accommodating the sliding of the rack assembly is coaxially extended from the housing. A first avoidance hole for avoiding the rack main body and a first guide hole for slidingly matching with the guide slide rod are opened on the bottom wall of the power cavity; Second avoidance holes and second guide holes for mounting the rack assembly are opened on the flywheel drive wheel at positions corresponding to the first avoidance hole and the first guide hole.

5. The wave energy power generation device according to claim 4, wherein The flywheel drive wheel includes a tooth ring that is power-matched with the output gear and the drive gear, A support bearing for mounting the tooth ring, A base that mounts the support bearing and is inserted from the bottom of the power cavity; The inner end of the flywheel connecting piece is fixedly installed at one end of the tooth ring in the axial direction.

6. The wave energy power generation device according to claim 4, characterized in that, Elastic buffer struts for colliding and buffering with the floating body are arranged on the inner end faces of the upper mounting seat and the lower mounting seat.

7. The wave energy power generation device according to claim 4, wherein, The housing is an inverted cylindrical structure, and a water storage bladder for adjusting its own weight is sleeved on the outer ring of the housing, A floating body bladder is arranged on the top of the housing and is sleeved on the outer ring of the power cavity, The floating body bladder abuts against the bottom wall of the cylindrical structure of the housing; The lower end of the gearbox extends out a power input gear dragged by the rack assembly. A one-way bearing group sleeved on the gear shaft of the power input gear is arranged inside the gearbox, and a speed increasing gear group is matched by the one-way bearing group. The output gear is connected to the output end of the speed increasing gear group.

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