Reciprocating type wave energy conversion device and wave energy power generation system
The reciprocating wave energy conversion device stabilizes power generation through a rotating plate structure with an inertia wheel and optimized gear mechanisms, addressing high cost and maintenance issues in existing wave energy systems by reducing wear and simplifying the design.
Patent Information
- Application Number
- CN202420566847.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-22
AI Technical Summary
Existing wave energy power generation equipment has unreasonable structural design, leading to high equipment cost, instability, and difficult maintenance due to complex mechanical structures and unstable wave motion.
A reciprocating wave energy conversion device with a rotating plate structure, inertia wheel, and optimized gear mechanisms, including an inner gear ring with a 60°-110° phase angle and one-way sawtooth design, to stabilize power generation and reduce wear, coupled with a reset spring for stable operation and simplified rectification.
The device achieves stable power generation, reduces wear and maintenance costs, and simplifies the structure by eliminating the need for rectification circuits, enhancing the efficiency and durability of wave energy conversion.
Smart Images
Figure CN222208151U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wave energy power generation, in particular to a reciprocating wave energy conversion device and a wave energy power generation system. Background Art
[0002] In recent years, with the increasing consumption of traditional energy and its pollution to the environment, people have paid more and more attention to the utilization and development of renewable energy. my country's mainland coastline is 18,000 kilometers long and the sea area is vast. Wave energy is an important clean and renewable energy in the ocean. Wave energy power generation devices are an important means of utilizing the energy contained in ocean waves. At present, many wave energy conversion devices have been developed in the world. However, wave energy conversion devices have not entered the commercial stage due to their low power generation efficiency, high cost and difficulty in maintenance. In particular, in order to achieve good use effects, current wave energy conversion devices need to set up rectifier units with balanced current characteristics to facilitate the storage and utilization of electrical energy, or through complex and precise mechanical structure design to offset the unstable fluctuation characteristics of wave-driven power generation, which greatly increases the cost and maintenance difficulty of the device, which is not conducive to the popularization of wave energy utilization.
[0003] In summary, existing wave energy power generation equipment has unreasonable structural design, which leads to technical problems such as high equipment cost, instability and difficult maintenance. Utility Model Content
[0004] The technical problem to be solved by the utility model is that the existing wave energy power generation equipment has unreasonable structural design, resulting in high equipment cost, instability and difficult maintenance.
[0005] In order to solve the above problems, the utility model provides a reciprocating wave energy conversion device, including a mounting base and a wave propulsion assembly arranged on the mounting base, the wave propulsion assembly is connected to the generator for generating electricity through a transmission shaft assembly; the wave propulsion assembly includes a wave-facing plate with a side edge hinged to the mounting base, the wave-facing plate is fixedly connected with an inner gear ring mechanism, the rotation center of the inner gear ring mechanism coincides with the hinge position of the wave-facing plate, the transmission shaft assembly includes a main shaft and a main transmission gear located on the main shaft, the inner gear ring mechanism is meshed with the main transmission gear, an inertia wheel for reducing the instantaneous rotation rate of the inner gear ring mechanism is also installed on the main shaft, and a reset spring is also connected between the wave-facing plate and the mounting base, for driving the wave-facing plate to rebound and reset after being rotated by waves.
[0006] The reciprocating wave energy conversion device provided by the utility model adopts a rotating plate structure design to drive the wave-facing plate to rotate around the axis through the waves, and synchronously drives the inner gear ring mechanism to rotate, thereby driving the main transmission gear to rotate through the meshing of the teeth, and then driving the main shaft to rotate to drive the motor to generate electricity, and a reset spring is provided to reversely reset the wave-facing plate after the power generation process is completed, so as to perform reciprocating power generation action. The design structure is simple and the transmission is stable; due to the characteristics of the wave movement itself, the movement of the wave-facing plate is relatively unstable, and the movement state of the wave-facing plate often changes rapidly. The instantaneous rate of its power generation action is too large, which is not conducive to The utilization of electric energy and the too fast change of motion state are also easy to cause wear and even damage to the transmission mechanism, which greatly increases the additional cost of the device. In view of this situation, an inertia wheel is installed on the main shaft. The large deadweight of the inertia wheel provides a large rotational inertia, which can slow down the wave board when the acceleration is too large, balance the instantaneous rate of the mechanism, and effectively avoid the wear and damage of the mechanism. In addition, because the instantaneous motion change characteristics are reduced, the rotational motion of the main shaft is more stable, which is conducive to the conversion and utilization of electric energy, and effectively solves the technical problems of unreasonable structural design of existing wave energy power generation equipment, resulting in high equipment cost, instability and difficult maintenance.
[0007] As a preferred solution, the inner gear ring mechanism includes an arc-shaped tooth plate with a phase angle range of 60°-110°, and a one-way sawtooth structure arranged on the inner edge of the tooth plate, and the outer edge of the tooth plate is fixedly attached to the wave-facing plate. This design optimizes the structural design of the inner gear ring mechanism. The phase angle of 60°-110° ensures an effective return stroke of a certain length to ensure the power generation effect. The one-way sawtooth structure ensures that it is only engaged with the main transmission gear during the forward rotation of the wave-facing plate driven by the waves, and is not engaged with the main transmission gear during the reverse rotation of the wave-facing plate when it is reset. In this way, the one-way output rotation simplifies the structure of the utilization of electric energy, avoids the special setting of a rectification and commutation circuit module, and reduces the cost of the device.
[0008] As a preferred solution, the one-way sawtooth structure includes a row of tooth grooves distributed on the inner edge of the tooth plate, and a single sawtooth boss installed in each tooth groove, and a compression spring is connected to the bottom of the single sawtooth boss to push it outward. The one-way sawtooth structure allows the inner gear ring mechanism to remain in mesh with the main transmission gear during the compression movement of the wave-facing board under the push of the wave, and when the wave-facing board rebounds under the action of the reset spring, the inner gear ring mechanism and the main transmission gear rotate relative to each other without meshing. This design further optimizes the one-way sawtooth structure design in the above design, provides a sawtooth structure design with simple structure and stable operation, and ensures the implementation effect of the one-way transmission.
[0009] As a preferred solution, a first support plate is provided between the end of the wave-facing plate and the outer edge of the inner gear ring mechanism to support and fix the two, a second support plate is provided between the end of the inner gear ring mechanism away from one end of the wave-facing plate and the board surface of the wave-facing plate to support and fix the two, and a third support plate is provided between the second support plate and the board surface of the wave-facing plate to connect and fix the two. This design optimizes the connection and fixing structure between the wave-facing plate and the inner gear ring mechanism, strengthens the connection between the two, and improves the strength and durability of the transmission mechanism.
[0010] As a preferred solution, the mounting seat is provided with an axle mounting platform protruding above the plate surface, and the spindle can be rotatably supported and connected through the axle mounting platform structure. This design optimizes the support structure design of the spindle, and a protruding axle mounting platform is provided on the mounting seat to support the spindle, ensuring that the height and position of the spindle are well matched with the position of the wave-facing plate and the inner gear ring mechanism.
[0011] As a preferred solution, a spring mounting platform is provided on the mounting seat, the end surface of the spring mounting platform faces the wave-facing plate, one end of the reset spring is connected to the spring mounting platform, and the other end is fixed against the wave-facing plate. This design optimizes the connection structure of the reset spring, and the spring mounting platform is provided to fix the reset spring, ensuring the stability of the position of the spring to ensure the rebound reset effect.
[0012] The utility model also provides a wave energy power generation system, comprising a generator and a wave energy conversion device drivingly connected to the generator, wherein the wave energy conversion device is a reciprocating wave energy conversion device as described in any of the above items. Since the above wave energy conversion device has the above technical effects, the wave energy power generation system having the wave energy conversion device should also have the corresponding technical effects.
[0013] As a preferred solution, the wave energy power generation system further comprises a support column assembly uniformly fixed to the bottom of the mounting base of the reciprocating wave energy conversion device. This design optimizes the support structure in the above design, and provides a good and highly controllable support structure design through the support column assembly.
[0014] As a preferred solution, a power generation transmission gear is provided on the main shaft of the reciprocating wave energy conversion device, and is connected to the central shaft of the generator through the power generation transmission gear. This design optimizes the matching mode between the reciprocating wave energy conversion device and the generator shaft, ensuring the transmission effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic diagram of the structure of a reciprocating wave energy conversion device provided by the utility model;
[0016] Figure 2 for Figure 1A schematic diagram of the partial structure of the wave propulsion assembly of the medium reciprocating wave energy conversion device;
[0017] Figure 3 for Figure 1 A schematic diagram of the partial structure of the mounting base of the medium reciprocating wave energy conversion device;
[0018] Figure 4 for Figure 1 A schematic diagram of the partial structure of the position of the return spring of the reciprocating wave energy conversion device;
[0019] Figure 5 for Figure 1 A schematic diagram of the partial structure of the inner gear ring mechanism of the medium reciprocating wave energy conversion device;
[0020] in, Figure 1-Figure 5 middle:
[0021] 1. Wave propulsion assembly; 1-1. Wave-facing plate; 1-2. Inertia wheel; 1-3. Inner gear ring mechanism; 1-4. Reset spring; 1-5. One-way sawtooth structure; 1-6. First support plate; 1-7. Second support plate; 1-8. Third support plate; 1-9. Monolithic sawtooth boss; 1-10. Tooth groove; 1-11. Compression spring; 1-12. Main shaft; 1-13. Main transmission gear; 2. Mounting pedestal; 2-1. Shaft mounting platform; 2-2. Spring mounting platform; 3. Support column assembly; 4. Power generation transmission gear. DETAILED DESCRIPTION
[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0023] Before explaining the working principle of the present invention in detail, the description of the present invention needs to be further explained: In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a welding connection between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0025] refer to Figure 1-Figure 5 The following embodiments are described, Figure 1 A schematic diagram of the structure of a reciprocating wave energy conversion device provided by the utility model; Figure 2 for Figure 1 A schematic diagram of the partial structure of the wave propulsion assembly of the medium reciprocating wave energy conversion device; Figure 3 for Figure 1 A schematic diagram of the partial structure of the mounting base of the medium reciprocating wave energy conversion device; Figure 4 for Figure 1 A schematic diagram of the partial structure of the position of the return spring of the reciprocating wave energy conversion device; Figure 5 for Figure 1 Schematic diagram of the partial structure of the inner gear ring mechanism of the reciprocating wave energy conversion device.
[0026] The reciprocating wave energy conversion device provided in this embodiment includes a mounting base 2 and a wave propulsion assembly 1 arranged on the mounting base 2, the wave propulsion assembly 1 is connected to the generator for generating electricity through a transmission shaft assembly; the wave propulsion assembly 1 includes a wave-facing plate 1-1 whose one side edge is hinged to the mounting base 2, the wave-facing plate 1-1 is fixedly connected with an inner gear ring mechanism 1-3, the rotation center of the inner gear ring mechanism 1-3 coincides with the hinge position of the wave-facing plate 1-1, the transmission shaft assembly includes a main shaft 1-12 and a main transmission gear 1-13 located on the main shaft 1-12, the inner gear ring mechanism 1-3 is meshed with the main transmission gear 1-13, the main shaft 1-12 is also equipped with an inertia wheel 1-2 for reducing the instantaneous rotation rate of the inner gear ring mechanism 1-3, and a reset spring 1-4 is also connected between the wave-facing plate 1-1 and the mounting base 2, for driving the wave-facing plate 1-1 to rebound and reset after being rotated by waves.
[0027] The reciprocating wave energy conversion device provided by the utility model adopts a rotating plate structure design to drive the wave-facing plate 1-1 to rotate around the axis through the waves, and synchronously drives the inner gear ring mechanism 1-3 to rotate, thereby driving the main transmission gear 1-13 to rotate through the meshing of the teeth, and then drives the main shaft 1-12 to rotate to drive the motor to generate electricity, and a reset spring 1-4 is provided to reversely reset the wave-facing plate 1-1 after the power generation process is completed, so as to perform a reciprocating power generation action. The design structure is simple and the transmission is stable; due to the characteristics of the wave movement itself, the movement action of the wave-facing plate 1-1 is relatively unstable, and the movement state of the wave-facing plate 1-1 often changes rapidly, and the instantaneous rate of its power generation action is too large, In addition to being unfavorable for the utilization of electric energy, the excessively fast change in motion state is also likely to cause wear or even damage to the transmission mechanism, greatly increasing the additional cost of the device. In view of this situation, an inertia wheel 1-2 is installed on the main shaft 1-12. The large deadweight of the inertia wheel 1-2 provides a large rotational inertia, which can decelerate the wave board 1-1 when the acceleration is too large, balancing the instantaneous rate of the mechanism, effectively avoiding wear and damage to the mechanism, and because the instantaneous motion change characteristics are reduced, the rotational motion of the main shaft 1-12 is more stable, which is conducive to the conversion and utilization of electric energy, and effectively solves the technical problems of unreasonable structural design of existing wave energy power generation equipment, resulting in high equipment cost, instability and difficult maintenance.
[0028] In the technical solution provided in this embodiment, the inner gear ring mechanism 1-3 includes an arc-shaped tooth plate with a phase angle range of 60°-110°, and a one-way sawtooth structure 1-5 arranged on the inner edge of the tooth plate, and the outer edge of the tooth plate is fixed to the wave-facing plate 1-1. This design optimizes the structural design of the inner gear ring mechanism 1-3. The phase angle of 60°-110° ensures an effective return stroke of a certain length to ensure the power generation effect. The one-way sawtooth structure 1-5 ensures that it is only engaged with the main transmission gear 1-13 during the forward rotation process of the wave-facing plate 1-1 driven by waves, and does not engage with the main transmission gear 1-13 during the reverse rotation process of the wave-facing plate 1-1 when it is reset. In this way, through the one-way output rotation, the structure of utilizing electric energy is simplified, avoiding the special setting of a rectification and commutation circuit module, and reducing the cost of the device.
[0029] In the technical solution provided in this embodiment, the one-way sawtooth structure 1-5 includes a row of tooth grooves 1-10 distributed on the inner edge of the tooth plate, and a single sawtooth boss 1-9 installed in each tooth groove 1-10, and the bottom of the single sawtooth boss 1-9 is connected to a compression spring 1-11 to push it outward. The one-way sawtooth structure 1-5 allows the inner gear ring mechanism 1-3 to keep meshing with the main transmission gear 1-13 during the compression movement of the wave-facing board 1-1 under the push of the wave. When the wave-facing board 1-1 rebounds under the action of the reset spring 1-4, the inner gear ring mechanism 1-3 and the main transmission gear 1-13 rotate relative to each other without meshing. This design further optimizes the one-way sawtooth structure 1-5 design in the above design, provides a sawtooth structure design with simple structure and stable operation, and ensures the implementation effect of the one-way transmission.
[0030] In the technical solution provided in this embodiment, a first support plate 1-6 is provided between the end of the wave-facing plate 1-1 and the outer edge of the inner gear ring mechanism 1-3 to support and fix the two, a second support plate 1-7 is provided between the end of the inner gear ring mechanism 1-3 away from the wave-facing plate 1-1 and the board surface of the wave-facing plate 1-1 to support and fix the two, and a third support plate 1-8 is provided between the second support plate 1-7 and the board surface of the wave-facing plate 1-1 to connect and fix the two. This design optimizes the connection and fixing structure between the wave-facing plate 1-1 and the inner gear ring mechanism 1-3, strengthens the connection between the two, and improves the strength and durability of the transmission mechanism.
[0031] In the technical solution provided in this embodiment, the mounting base 2 is provided with an axis mounting platform 2-1 protruding above the plate surface thereof, and the axis mounting platform 2-1 structure can rotatably support and connect the main shaft 1-12. This design optimizes the support structure design of the main shaft 1-12, and a protruding axis mounting platform 2-1 is provided on the mounting base 2 to support the main shaft 1-12, ensuring that the height and position of the main shaft 1-12 are well matched with the position of the wave-facing plate 1-1 and the inner gear ring mechanism 1-3.
[0032] In the technical solution provided in this embodiment, a spring mounting platform 2-2 is provided on the mounting base 2, the end face of the spring mounting platform 2-2 faces the wave-facing plate 1-1, one end of the return spring 1-4 is connected to the spring mounting platform 2-2, and the other end is fixed against the wave-facing plate 1-1. This design optimizes the connection structure of the return spring 1-4, and the spring mounting platform 2-2 is provided to fix the return spring 1-4, so as to ensure the stability of the position of the spring to ensure the rebound return effect.
[0033] This embodiment also provides a wave energy power generation system, including a generator and a wave energy conversion device driving the generator, wherein the wave energy conversion device is a reciprocating wave energy conversion device as in any of the above embodiments. Since the above wave energy conversion device has the above technical effects, the wave energy power generation system having the wave energy conversion device should also have the corresponding technical effects.
[0034] In the technical solution provided in this embodiment, the wave energy power generation system further includes a support column assembly 3 uniformly fixed to the bottom of the mounting base 2 of the reciprocating wave energy conversion device. This design optimizes the support structure in the above design, and provides a good and highly controllable support structure design through the support column assembly 3.
[0035] In the technical solution provided in this embodiment, a power generation transmission gear 4 is provided on the main shaft 1-12 of the reciprocating wave energy conversion device, and is connected to the central shaft of the generator through the power generation transmission gear 4. This design optimizes the matching mode between the reciprocating wave energy conversion device and the generator shaft to ensure the transmission effect.
[0036] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.
Claims
1. A reciprocating wave energy conversion device, It is characterized in that The invention comprises a mounting base (2) and a wave propulsion assembly (1) arranged on the mounting base (2), wherein the wave propulsion assembly (1) is transmission-connected to a generator for performing power generation via a transmission shaft assembly; the wave propulsion assembly (1) comprises a wave-facing board (1-1) whose one side edge is hinged to the mounting base (2), the wave-facing board (1-1) is fixedly connected to an inner gear ring mechanism (1-3), the rotation center of the inner gear ring mechanism (1-3) coincides with the hinge position of the wave-facing board (1-1), and the transmission shaft The assembly comprises a main shaft (1-12) and a main transmission gear (1-13) located on the main shaft (1-12); the inner gear ring mechanism (1-3) meshes with the main transmission gear (1-13); an inertia wheel (1-2) for reducing the instantaneous rotation rate of the inner gear ring mechanism (1-3) is also installed on the main shaft (1-12); a return spring (1-4) is also connected between the wave-facing board (1-1) and the mounting base (2) for driving the wave-facing board (1-1) to rebound and return to its original position after being rotated by waves.
2. The reciprocating wave energy conversion device according to claim 1, It is characterized in that The inner gear ring mechanism (1-3) comprises an arc-shaped tooth plate with a phase angle ranging from 60° to 110°, and a one-way sawtooth structure (1-5) arranged on the inner edge of the tooth plate, and the outer edge of the tooth plate is fixedly attached to the wave-facing plate (1-1).
3. The reciprocating wave energy conversion device according to claim 2, It is characterized in that The one-way sawtooth structure (1-5) comprises a row of tooth grooves (1-10) distributed on the inner side edge of the tooth plate, and a single sawtooth boss (1-9) installed in each tooth groove (1-10), and a compression spring (1-11) is connected to the bottom of the single sawtooth boss (1-9) to push it outward. The one-way sawtooth structure (1-5) allows the inner gear ring mechanism (1-3) to maintain meshing with the main transmission gear (1-13) during the compression movement of the wave-facing board (1-1) under the push of waves, and when the wave-facing board (1-1) rebounds under the action of the return spring (1-4), the inner gear ring mechanism (1-3) and the main transmission gear (1-13) rotate relative to each other without meshing.
4. The reciprocating wave energy conversion device according to claim 3, It is characterized in that A first support plate (1-6) is provided between the end of the wave-facing plate (1-1) and the outer edge of the inner gear ring mechanism (1-3) to support and fix the two, a second support plate (1-7) is provided between the end of the inner gear ring mechanism (1-3) away from the wave-facing plate (1-1) and the board surface of the wave-facing plate (1-1) to support and fix the two, and a third support plate (1-8) is provided between the second support plate (1-7) and the board surface of the wave-facing plate (1-1) to connect and fix the two.
5. The reciprocating wave energy conversion device according to any one of claims 1 to 4, It is characterized in that The mounting seat (2) is provided with a shaft mounting platform (2-1) protruding above its plate surface, and the main shaft (1-12) can be rotatably supported and connected through the shaft mounting platform (2-1) structure.
6. The reciprocating wave energy conversion device according to claim 5, It is characterized in that A spring mounting platform (2-2) is arranged on the mounting seat (2), the end face of the spring mounting platform (2-2) faces the wave-facing plate (1-1), one end of the return spring (1-4) is connected to the spring mounting platform (2-2), and the other end is fixedly abutted against the wave-facing plate (1-1).
7. A wave energy power generation system, comprising a generator and a wave energy conversion device drivingly connected to the generator, It is characterized in that The wave energy conversion device is a reciprocating wave energy conversion device as described in any one of claims 1-6.
8. The wave energy power generation system according to claim 7, It is characterized in that The wave energy power generation system further comprises a support column assembly (3) uniformly fixed to the bottom of the mounting base (2) of the reciprocating wave energy conversion device.
9. The wave energy power generation system according to claim 7, It is characterized in that A power generation transmission gear (4) is provided on the main shaft (1-12) of the reciprocating wave energy conversion device, and is connected to the central shaft of the generator through the power generation transmission gear (4).