CN213655031U

CN213655031U - Wave power generation device based on frequency modulation mass damping principle

Info

Publication number: CN213655031U
Application number: CN202022463159.0U
Authority: CN
Inventors: 宿晓辉; 张天赐; 张建涛; 张明亮; 于大鹏; 周文龙; 曹旭阳
Original assignee: Dalian University of Technology
Current assignee: Dalian University of Technology
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-09
Anticipated expiration: 2030-10-30

Abstract

A wave power generation device based on a frequency modulation mass damping principle belongs to the field of wave energy development and utilization. The wave power generation device based on the frequency modulation mass damping principle comprises a shell, an energy conversion device and an electric energy storage device, wherein the shell adopts a streamline tumbler structure, and the energy conversion device comprises a spring reset assembly and an energy capture transmission assembly. The device is based on a frequency modulation mass damping principle, converts wave energy into mechanical energy of frequency modulation mass through a built-in tumbler structure of the frequency modulation mass, and converts the mechanical energy of the frequency modulation mass into energy of electric energy to convert the energy into the wave energy power generation device designed by a new idea. The shell of the device is designed to be in a shell-shaped streamline shape, and the speed changing device, the power generating device, the power storage device, the load and the necessary balance weight are arranged on the lower layer to lower the gravity center, so that a tumbler structure with a top light and a bottom heavy is formed. The structure can move freely, is not limited to fixed position wave energy conversion, and realizes efficient utilization and conversion of wave energy aiming at different sea conditions and different sea area positions.

Description

Wave power generation device based on frequency modulation mass damping principle

Technical Field

The utility model relates to a wave power generation device based on frequency modulation mass damping principle belongs to wave energy development and utilization field.

Background

Energy and environment are major problems facing sustainable development, and the development of clean renewable energy sources becomes a consensus of countries in the world. In the field of ocean energy, wave energy is one of green clean energy with the most development potential in the future due to large storage capacity, strong reproducibility, wide distribution and good environmental protection effect. Wave energy power generation is an important way of ocean energy development. However, wave energy conversion technology is slow to develop due to low energy flow density, difficulty in capturing and the like of wave energy. Although the wave energy is huge in accumulation, the energy conversion technology is difficult to realize due to the characteristics of randomness, instability, weak periodicity and the like. The conventional wave power generation device needs to fix a foundation or fix the foundation in a local sea area through a link, so that the wave power generation device is not beneficial to wave energy absorption and conversion. The wave energy power generation device effectively utilizes wave energy to realize wave energy power generation, and has very important significance in adapting to different sea conditions and supplying power for operation in offshore remote areas.

Disclosure of Invention

For overcoming the problem of wave power generation set energy capture difficulty, the utility model provides a novel wave power generation set based on frequency modulation quality damping.

The utility model adopts the technical proposal that: a wave power generation device based on a frequency modulation mass damping principle comprises a shell, an energy conversion device and an electric energy storage device, wherein the shell is of a streamline tumbler structure, an upper deck and a lower deck are arranged inside the shell, and the energy conversion device comprises a spring reset assembly and an energy capture transmission assembly.

The spring reset assembly comprises a frequency modulation mass body, a fixed rod, a reset spring, a connecting rod, an upper spring seat and a lower spring seat, the top of the fixed rod is provided with the upper spring seat, the upper spring seat is connected through the connecting rod, the reset spring is sleeved on the upper portion of the fixed rod, the top is connected with the upper spring seat, the bottom is connected with the lower spring seat, the lower spring seat is fixed at the top of the upper deck, and the lower portion of the fixed rod penetrates through the lower spring seat and a fixed rod hole in the upper deck to.

Energy capture transmission assembly contains the energy capture pole, the output pole, the fried dough twist pole, rotatory sleeve of initiative and driven rotatory sleeve, the bottom at the frequency modulation quality body is fixed to the energy capture pole end cover at energy capture pole top, the inside of energy capture pole is inserted on the upper portion of output pole, the lower part is run through and is connected down the deck through ball bearing, the inside at the output pole is established from top to bottom in proper order to rotatory sleeve of initiative and driven rotatory sleeve, the telescopic lower part of initiative rotation is equipped with the rotatory tooth of initiative with the interlock of the driven rotatory tooth on driven rotatory sleeve upper portion, the inner wall of output pole is connected through the connector key to driven rotatory sleeve, the upper end of fried dough twist pole is fixed on the energy capture pole end cap at energy capture pole top, the lower extreme passes the output pole end cover in proper order, twist bar passageway on the rotatory sleeve of initiative and.

The electric energy storage device is arranged in a counterweight load area defined by a lower deck and a shell, the electric energy storage device comprises a speed regulating gear box, an excitation generator and a storage battery, the bottom of an output rod is connected with the excitation generator arranged at the top of a storage battery chamber through the speed regulating gear box, the excitation generator is connected with the storage battery arranged in the storage battery chamber through a lead, and the storage battery chamber is arranged on a base arranged at the bottom of the shell.

The shell adopts a streamline tumbler structure consisting of at least one of a cylinder, a sphere, a streamline body and a cambered surface.

The frequency modulation mass body is a mass body with a centrosymmetric shape.

The utility model has the advantages that: a wave power generation device based on a frequency modulation mass damping principle comprises a shell, an energy conversion device and an electric energy storage device, wherein the shell is of a streamline tumbler structure, an upper deck and a lower deck are arranged inside the shell, and the energy conversion device comprises a spring reset assembly and an energy capture transmission assembly. The wave energy power generation device is based on a frequency modulation mass damping principle, and adopts a new energy conversion idea that a tumbler structure body with built-in frequency modulation mass is used for converting wave energy into mechanical energy with frequency modulation mass, and then the mechanical energy with frequency modulation mass is converted into electric energy. The shell of the device is designed to be in a shell-shaped streamline shape, and the speed changing device, the power generating device, the power storage device, the load and the necessary balance weight are arranged on the lower layer to lower the gravity center, so that a tumbler structure with a top light and a bottom heavy is formed. The structure can move freely, is not limited to fixed position wave energy conversion, and realizes efficient utilization and conversion of wave energy aiming at different sea conditions and different sea area positions.

Drawings

Fig. 1 is a schematic diagram of the internal structure of a wave power plant based on the frequency-modulated mass damping principle.

Fig. 2 is a partially enlarged view F of fig. 1.

Fig. 3 is a view a-a of fig. 1.

Fig. 4 is a view B-B of fig. 1.

Fig. 5 is a partial enlarged view G in fig. 1.

Fig. 6 is a view C-C in fig. 1.

Fig. 7 is a view D-D in fig. 1.

Fig. 8 is a view E-E of fig. 1.

Fig. 9 is a partial enlarged view of H in fig. 1.

In the figure: 1. the energy-saving device comprises a shell, 2, an upper deck, 3, an energy capturing rod, 4, an output rod, 5, a lower deck, 6, a speed regulating gear box, 7, an excitation generator, 8, a lead wire, 9, a storage battery, 10, a storage battery storage chamber, 11, a counterweight load area, 12, a frequency-modulated mass body, 13, a fixing rod, 14, a reset spring, 15, a connecting rod, 16, an upper spring seat, 17, a lower spring seat, 18, a fixing rod hole, 19, an energy capturing rod end cover, 20, a twist rod, 21, an output rod end cover, 22, a driving rotating sleeve, 23, a driving rotating tooth, 24, a driven rotating sleeve, 25, a driven rotating tooth, 26, a connecting key, 27, a torsion channel, 28, a twist rod channel, 29 and a ball bearing.

Detailed Description

Fig. 1 shows a schematic structural diagram of a wave power generation device based on a frequency modulation mass damping principle, the wave power generation device based on the frequency modulation mass damping principle comprises a shell 1, an energy conversion device and an electric energy storage device, the shell 1 adopts a streamline tumbler structure, an upper deck 2 and a lower deck 5 are arranged inside the shell 1, and the energy conversion device comprises a spring reset assembly and an energy capture transmission assembly. The spring reset assembly comprises a frequency modulation mass body 12, a fixed rod 13, a reset spring 14, a connecting rod 15, an upper spring seat 16 and a lower spring seat 17, the top of the fixed rod 13 is provided with the upper spring seat 16, the upper spring seat 16 is connected through the connecting rod 15, the reset spring 14 is sleeved on the upper portion of the fixed rod 13, the upper spring seat 16 is connected on the top, the lower spring seat 17 is connected on the bottom, the lower spring seat 17 is fixed on the top of the upper deck 2, and the lower portion of the fixed rod 13 penetrates through the lower spring seat 17 and a fixed rod hole 18 in the upper deck 2 to.

The energy capture transmission assembly comprises an energy capture rod 3, an output rod 4, a twist rod 20, the energy capturing rod end cover 19 at the top of the energy capturing rod 3 is fixed at the bottom of the frequency modulation mass body 12, the upper portion of the output rod 4 is inserted into the energy capturing rod 3, the lower portion of the output rod 4 penetrates through and is connected with the lower deck 5 through a ball bearing 29, the driving rotating sleeve 22 and the driven rotating sleeve 24 are sequentially arranged inside the output rod 4 from top to bottom, the driving rotating teeth 23 meshed with the driven rotating teeth 25 on the upper portion of the driven rotating sleeve 24 are arranged on the lower portion of the driving rotating sleeve 22, the driven rotating sleeve 24 is connected with the inner wall of the output rod 4 through a connecting key 26, the upper end of the twist rod 20 is fixed on the energy capturing rod end cover 19 at the top of the energy capturing rod 3, and the lower end of the twist rod passes through the output rod end cover 21, the twisting channel 27 on the driving rotating sleeve 22 and the twist rod channel.

The electric energy storage device is arranged in a counterweight load area 11 enclosed by a lower deck 5 and the shell 1, the electric energy storage device comprises a speed regulating gear box 6, an excitation generator 7 and a storage battery 9, the bottom of the output rod 4 is connected with the excitation generator 7 arranged at the top of a storage battery storage chamber 10 through the speed regulating gear box 6, the excitation generator 7 is electrically connected with the storage battery 9 arranged in the storage battery storage chamber 10 through a lead 8, and the storage battery storage chamber 10 is arranged on a base at the bottom of the shell 1.

The shell 1 adopts a streamline tumbler structure consisting of at least one of a cylinder, a sphere, a streamline body and a cambered surface.

The frequency-modulated mass body 12 is a mass body having a centrosymmetric shape.

The device can be quickly reset due to the structural characteristics of the tumbler no matter what posture the device is put into water, the absolute position of the excitation generator 7 is lower, the absolute position of the frequency modulation mass body 12 is upper, and most of the frequency modulation mass body floats on the water surface. After the device is subjected to combined action of wind, waves, flow and the like, displacement can be generated in the vertical direction, the frequency modulation mass body 12 can generate relative motion along with the displacement, and the displacement can be restored by the elastic force of the return spring 14, so that the energy capturing rod 3 can be driven to move up and down in the vertical direction, and wave energy can be captured.

The shell 1 of the tumbler structure body moves up and down along with the waves, the frequency modulation mass body 12 arranged in the tumbler structure body moves up and down oppositely to the movement of the tumbler structure body due to the inertia effect, when the frequency modulation mass body 12 drives the energy capture rod 3 to move down, the frequency modulation mass body 12, the fixed rod 13 and the connecting rod 15 move down integrally, the reset spring 14 is compressed, the fixed rod hole 18 limits the transverse displacement of the fixed rod 13, the energy capture rod end cover 19 ensures that the twist rod 20 and the energy capture rod 3 move down synchronously, the lower part of the twist rod 20 enters the torsion channel 27 of the driving rotation sleeve 22 through the output rod end cover hole, the driving rotation sleeve 22 is pressed down due to the friction force, the driving rotation sleeve teeth 23 and the driven rotation sleeve teeth 25 are mutually engaged, and the torsion channel 27 is engaged with the twist rod 20 along with the downward movement of the twist rod 20, the generated rotation drives the driven rotating sleeve 24 to rotate, and the driven rotating sleeve 24 is connected with the output rod 4 through a connecting key 26, so as to drive the output rod 4 to rotate. When the frequency modulation mass body 12 drives the energy capturing rod 3 to move downwards to the limit position, the limiting prevention device at the lower end of the lower spring seat 17 moves excessively, and due to the elastic force of the return spring 14, the energy in the moving process is provided by wave energy.

When the frequency modulation mass body 12 drives the energy capturing rod 3 to move upwards, the frequency modulation mass body 12, the fixing rod 13 and the connecting rod 15 move upwards integrally, the energy capturing rod end cover 19 ensures that the twist rod 20 and the energy capturing rod 3 move upwards synchronously, due to friction, the driving rotating sleeve 22 is lifted up by the twist rod 20, the driving rotating sleeve ruler teeth 23 and the driven rotating sleeve ruler teeth 25 are separated from each other, along with the upward movement of the twist rod 20, the twisting channel 27 is meshed with the twist rod 20, the driving rotating sleeve 22 idles, and the output rod end cover 21 ensures that the driving rotating sleeve 22 is not pulled out of the output rod 4. The upper end limit of the upper spring seat 16 prevents the device from moving excessively.

After the output rod 4 rotates, the speed regulating gear box 6 regulates the rotating speed and the torque and transmits the rotating speed and the torque to the excitation generator 7 to generate electric energy, the electric energy is transmitted to the storage battery 9 in the storage battery storage chamber 10 through the lead 8 to be stored, and the electric energy is provided for the counterweight load area 11.

The shell adopts a streamline tumbler structure, the interior of the shell is divided into an upper deck and a lower deck or a plurality of decks, the upper deck is a frequency modulation quality device layer, the bottommost deck is a base, and the tumbler structure with a light upper part and a heavy lower part is formed by installing a speed regulation mechanism, a motor, a balance weight or other loads under the bottommost deck, so that the whole device is ensured to have good resetting and self-stabilizing performances. The shell can be one or more of a cylinder, a sphere, a streamlined body, a cambered surface and the like, and the deck can be one layer to multiple layers.

The tumbler structure with the frequency modulation mass device floats with the waves, so that the frequency modulation mass body connected with the shell generates relative motion, namely mechanical energy is obtained, and the mechanical energy is converted into rotary mechanical energy to drive the motor to generate electricity and store electric energy. The FM mass body 12 moves in the vertical direction, and a certain deflection angle can be formed in the vertical direction, part of the energy captured by the device is converted into electric energy, part of the electric energy is stored in the return spring 14 to drive the FM mass body 12 to return, and part of the electric energy is lost in the mechanical transmission of the torsion channel 27, the ball bearing 30, the speed regulating gear box 6 and the excitation generator 7, wherein the torsion channel is in contact with the twist rod 20 and the driving rotating sleeve 22. The frequency modulation mass body can be in a shape of a sphere, a cylinder, a regular polyhedron and the like with central symmetry, and the return spring can also be other elastic mechanisms with the same principle.

The frequency modulation mass body pushes and presses the twist rod to move downwards to generate a rotating torque to drive the motor to generate power, the heavy object resets upwards, and the motor does not work. The frequency modulation quality body drives the reciprocating motion of twist rod, and twist rod drive initiative helical casing to because the existence of a small amount of frictional force initiative helical casing pushes down, make initiative helical casing chi tooth and driven helical casing chi tooth interlock, driven rotatory sleeve relies on the connecting key to closely link to each other with the output lever, and the output lever rotates, and fixes at deck down through ball bearing. Meanwhile, the screw rod is not limited to be shown in the schematic diagram, and the cross section of the screw rod can be in other shapes, and the driving spiral sleeve tooth and the driven spiral sleeve tooth are not limited to be shown in the schematic diagram, and can also be in the forms of spur teeth, other helical teeth and the like. The upper spring seat can adopt a rubber pad, and the lower spring seat can adopt a rubber ring. The frequency modulation mass body is welded with the energy capture rod into a whole through an energy capture rod end cover, and is connected with the upper part of the upper deck through a connecting rod through fixing rod holes by centrosymmetric fixing rods.

When the screw rod moves downwards, the driving screw sleeve drives the driven screw sleeve to drive the output rod to rotate, and the driving speed regulating gear system drives the generator to generate power. Due to the design of the pawl of the driving spiral sleeve and the spiral rod, the output rod does not rotate and the generator does not work in the process of resetting when the heavy object moves upwards.

Claims

1. A wave power generation device based on a frequency modulation mass damping principle comprises a shell (1), and is characterized by further comprising an energy conversion device and an electric energy storage device, wherein the shell (1) adopts a streamline tumbler structure, an upper deck (2) and a lower deck (5) are arranged inside the shell (1), and the energy conversion device comprises a spring reset component and an energy capture transmission component;

the spring reset assembly comprises a frequency modulation mass body (12), a fixed rod (13), a reset spring (14), a connecting rod (15), an upper spring seat (16) and a lower spring seat (17), the top of the fixed rod (13) is provided with the upper spring seat (16), the upper spring seats (16) are connected through the connecting rod (15), the reset spring (14) is sleeved on the upper portion of the fixed rod (13), the top is connected with the upper spring seat (16), the bottom is connected with the lower spring seat (17), the lower spring seat (17) is fixed on the top of the upper deck (2), and the lower portion of the fixed rod (13) penetrates through the lower spring seat (17) and a fixed rod hole (18) in the upper deck (2) to be connected with the frequency modulation;

the energy capturing and transmitting assembly comprises an energy capturing rod (3), an output rod (4), a twist rod (20), a driving rotating sleeve (22) and a driven rotating sleeve (24), an energy capturing rod end cover (19) at the top of the energy capturing rod (3) is fixed at the bottom of the frequency modulation mass body (12), the upper portion of the output rod (4) is inserted into the energy capturing rod (3), the lower portion of the output rod penetrates through and is connected with a lower deck (5) through a ball bearing (29), the driving rotating sleeve (22) and the driven rotating sleeve (24) are sequentially arranged inside the output rod (4) from top to bottom, driving rotating teeth (23) meshed with driven rotating teeth (25) at the upper portion of the driven rotating sleeve (24) are arranged at the lower portion of the driving rotating sleeve (22), the driven rotating sleeve (24) is connected with the inner wall of the output rod (4) through a connecting key (26), the upper end of the twist rod (20) is fixed on the energy capturing rod end cover (19) at the top of the energy capturing rod (3, the lower end of the output rod passes through an output rod end cover (21), a torsion channel (27) on the driving rotating sleeve (22) and a twist rod channel (28) on the driven rotating sleeve (24) in sequence;

the electric energy storage device is arranged in a counterweight load area (11) enclosed by a lower deck (5) and a shell (1), the electric energy storage device comprises a speed regulating gear box (6), an excitation generator (7) and a storage battery (9), the bottom of an output rod (4) is connected with the excitation generator (7) arranged at the top of a storage battery storage chamber (10) through the speed regulating gear box (6), the excitation generator (7) is electrically connected with the storage battery (9) arranged inside the storage battery storage chamber (10) through a lead (8), and the storage battery storage chamber (10) is arranged on a base arranged at the bottom of the shell (1).

2. A frequency modulated mass damping based wave power unit as claimed in claim 1, characterized in that the housing (1) is a streamlined tumbler structure with at least one of a cylindrical shape, a spherical shape, a streamlined body and a cambered surface.

3. A wave power unit based on frequency modulated mass damping principle according to claim 1 characterized in that the frequency modulated mass (12) is a mass with a shape that is centrosymmetric.