A heave type inertial wave energy device

Abstract

The application discloses a heave type inertial wave energy power generation device and relates to the technical field of power generation devices. The heave type inertial wave energy power generation device comprises a supporting mechanism, a sliding guide rail mechanism is fixedly arranged on the supporting mechanism, a spring oscillator mechanism is slidably arranged on the sliding guide rail mechanism, the spring oscillator mechanism can convert captured ocean wave energy into mechanical energy of up-down movement of an oscillator of the spring oscillator mechanism, the spring oscillator mechanism is in transmission connection with an electromagnetic power generation mechanism through a gear and a rack mechanism, and the electromagnetic power generation mechanism can convert mechanical energy of the oscillator into electric energy. The heave type inertial wave energy power generation device is suitable for the ocean environment, has high collection and conversion efficiency for low-frequency wave energy, and is good in environmental adaptability and high in output power.

Description

Technical Field

[0001] This invention relates to the field of power generation technology, and in particular to a helical inertial wave energy power generation device. Background Technology

[0002] The ocean holds immense energy, with wave energy being the most abundant form. However, humanity's current reliance on fossil fuels far exceeds its development and utilization of ocean energy. Marine equipment operating long-term in the ocean inevitably encounters situations where power supply is insufficient. How to efficiently and effectively power this equipment using locally sourced resources is a bottleneck in improving its operational efficiency. Therefore, collecting the abundant wave energy in the marine environment and converting it into electricity to power equipment is a promising solution. However, due to the low frequency of waves, existing wave energy conversion devices suffer from low output power, low reliability, and poor environmental adaptability, making it difficult to efficiently collect wave energy and meet the requirement of providing long-term, effective power to drifting buoys. Summary of the Invention

[0003] The purpose of this invention is to provide a helical inertial wave energy generation device to solve the problems existing in the prior art, adapt to the marine environment, have high efficiency in collecting and converting low-frequency wave energy, and make the wave energy conversion device have good environmental adaptability and high output power.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] This invention provides a helical inertial wave energy generation device, including a support mechanism. A sliding guide rail mechanism is fixedly mounted on the support mechanism, and a spring oscillator mechanism is slidably mounted on the sliding guide rail mechanism. The sliding guide rail mechanism serves as the track for the vertical single-degree-of-freedom motion of the spring oscillator mechanism. The spring oscillator mechanism can convert the captured ocean wave energy into the mechanical energy of the up-and-down motion of the oscillator mechanism as it moves up and down with the floating body. The spring oscillator mechanism is connected to an electromagnetic power generation mechanism via a gear and rack mechanism, and the electromagnetic power generation mechanism can convert the mechanical energy of the oscillator into electrical energy.

[0006] Optionally, the support mechanism includes an upper cover plate and a lower cover plate fixedly connected by a support shaft. The support shaft is a smooth shaft to disperse the concentrated stress of the sliding guide rail and extend the life of the device. The sliding guide rail mechanism is provided between the upper cover plate and the lower cover plate, and the electromagnetic power generation mechanism is mounted on the lower cover plate by a support frame.

[0007] Optionally, the sliding guide mechanism includes a fixing pad fixed to the bottom of the upper cover plate and the top of the lower cover plate. A bearing seat is installed on the fixing pad, and two cylindrical sliding guides are connected inside the bearing seat. By adjusting the position of the bearing seat and the fixing pad, the alignment of the sliding guide is ensured.

[0008] Optionally, the spring oscillator mechanism is the main carrier of the entire wave energy power generation device, including the oscillator and the spring. The stiffness of the spring should be selected according to the mass of the oscillator to ensure that the natural vibration frequency of the spring oscillator system can be kept within the resonant frequency range of the waves under low-frequency wave conditions. The oscillator is equipped with a linear sliding bearing through a bearing mounting groove. The linear sliding bearing is slidably sleeved on the sliding guide rail. The contact surfaces of the oscillator and the sliding guide rail need to be polished to ensure smoothness. It cooperates with the smooth shaft of the sliding guide rail to make the oscillator move along the guide rail. This can maximize the vertical displacement of the oscillator while restricting its displacement in other degrees of freedom. At the same time, it can also reduce the damping of the system, minimize frictional resistance, and maintain the smooth linear motion of the oscillator. The oscillator has a central... A vertically oriented central hole is provided, through which a threaded shaft passes. A first nut and a second nut are threaded onto the threaded shaft. The first nut is fixedly abutted against the top of the oscillator, and the second nut is fixedly abutted against the bottom of the oscillator. A hook is provided at the top of the threaded shaft. The oscillator is suspended in the middle of the device by the hook and spring in a spring-adjustable structure, ensuring the meshing of the gear and rack and preventing disengagement of the gears during oscillator movement. This allows the oscillator to move in response to external excitation. The hook is fixedly connected to the bottom of the upper cover plate via the spring. Weights can be fitted onto the threaded shaft as needed, allowing adjustment of the spring stiffness and the oscillator mass according to sea conditions to achieve the most suitable natural frequency. The gear and rack mechanism is mounted on the oscillator. The hook ensures easy installation and replacement of the oscillator and spring, and allows for adjustment of the spring and weights on the threaded shaft according to the wave frequency of the sea conditions.

[0009] Optionally, the gear and rack mechanism includes a rack mounting plate fixed to one side of the oscillator, a rack fixedly mounted on the rack mounting plate, and a gear meshing with the rack. The gear is connected to the electromagnetic power generation mechanism. The rack mounting plate and the oscillator are fixedly mounted with nuts. The meshing of the gear and rack can be ensured by adjusting the mounting position of the rack mounting plate, so that the rack drives the gear to rotate during the linear sliding of the oscillator up and down.

[0010] Optionally, the rack and gear have the same module.

[0011] Optionally, the electromagnetic power generation mechanism includes a vertical bearing housing mounted on the lower cover plate. The vertical bearing housing houses a vertical bearing, which is a deep groove ball bearing. This bearing has a low coefficient of friction, a high limiting speed, a simple structure, and high precision. Using this vertical bearing effectively reduces rotational friction and supports the drive shaft, limiting the displacement of the drive shaft and gear structure, preventing the rack and pinion structure from falling off, and improving the reliability of the entire device. A drive shaft is fixedly mounted on the gear. Both ends of the drive shaft pass through the vertical bearing and are connected to couplings. The couplings are connected to the horizontal shaft of the generator. The generator is mounted on the support frame. The couplings connect the drive shaft and the horizontal shaft of the generator for the transmission of rotational motion, ensuring that the generator and drive shaft maintain the same speed. The rotational motion input from the drive shaft is transmitted to the generator through the coupling with almost no loss of speed, thereby effectively improving the generator's output power.

[0012] Optionally, the oscillator is a cuboid structure, which makes the entire device more symmetrical and more stable in water; the center of the oscillator is symmetrically cut, which can effectively ensure the quality of the oscillator without affecting the structural strength of the oscillator.

[0013] The present invention achieves the following technical effects compared to the prior art:

[0014] This invention first converts wave energy into the mechanical energy of an oscillator, and then converts the mechanical energy into electrical energy. Adjusting the spring oscillator mechanism can improve power generation efficiency. The gear and rack transmission mechanism is simple in structure, highly economical, and can efficiently convert linear motion into rotation. Using a rolling bearing housing as the support for the transmission shaft effectively withstands radial loads and a small amount of axial load, and reduces the frictional resistance of the transmission shaft rotation, thus improving the energy conversion efficiency from linear motion to rotation. By employing a spring oscillator system and an adjustable oscillator mechanism, and selecting appropriate spring stiffness and oscillator mass according to different sea conditions, the oscillator can achieve resonance with wave motion, increasing the oscillator's stroke and gear speed, effectively increasing the input speed of the generator, and significantly improving the conversion efficiency of the electromagnetic generator. The helical inertial wave energy conversion device designed in this invention can achieve self-powering of marine equipment, providing wave energy self-powered power for small and medium-sized electronic devices, and once in use, it requires no replacement, making it more practical. The wave energy conversion device of the present invention is small in size, simple in structure, easy to modularize and array, simple in construction process, economical, and can effectively extend the service life of marine equipment, improve working efficiency, and reduce costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the helical inertial wave energy generation device of the present invention;

[0017] Figure 2 This is a schematic diagram of the oscillator structure of the helical inertial wave energy generation device of the present invention;

[0018] In the diagram: 1-Upper cover plate, 2-Spring, 3-Sliding guide rail, 4-Support shaft, 5-Vibrator, 6-Coupling, 7-Fixing pad, 8-Lower cover plate, 9-Linear sliding bearing, 10-Rack, 11-Rack mounting plate, 12-Gear, 13-Generator, 14-Vertical bearing, 15-Support frame, 16-Hook, 17-First nut, 18-Threaded shaft, 19-Second nut. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The purpose of this invention is to provide a helical inertial wave energy generation device to solve the problems existing in the prior art, adapt to the marine environment, have high efficiency in collecting and converting low-frequency wave energy, and make the wave energy conversion device have good environmental adaptability and high output power.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] This invention provides a helical inertial wave energy generation device, such as... Figure 1 and Figure 2As shown, it includes a support mechanism, on which a sliding guide rail mechanism is fixedly mounted, and on which a spring oscillator mechanism is slidably mounted. The spring oscillator mechanism can convert the captured ocean wave energy into the mechanical energy of the up-and-down motion of the oscillator. The spring oscillator mechanism is connected to the electromagnetic power generation mechanism through a gear and rack mechanism. When waves act on the float, the reciprocating motion of the spring oscillator mechanism under excitation drives the rack and gear structure to convert low-frequency wave energy into medium- and high-frequency rotation, thereby efficiently driving the generator to generate electricity, making it possible for the ocean-drifting float to achieve self-powering.

[0023] Specifically, the support mechanism includes an upper cover plate 1 and a lower cover plate 8 fixedly connected by a support shaft 4. A sliding guide rail mechanism is provided between the upper cover plate 1 and the lower cover plate 8. The electromagnetic power generation mechanism is mounted on the lower cover plate 8 via a support frame 15. The sliding guide rail mechanism includes a fixed pad 7 fixed to the bottom of the upper cover plate 1 and the top of the lower cover plate 8. A bearing seat is installed on the fixed pad 7, and two cylindrical sliding guide rails 3 are connected inside the bearing seat. The gear and rack mechanism includes a rack mounting plate 11 fixed to one side of the vibrator 5. A rack 10 is fixedly mounted on the rack mounting plate 11. The rack 10 is meshed with a gear 12. The gear 12 is connected to the electromagnetic power generation mechanism. The rack mounting plate 11 can be adjusted to ensure the meshing of the gear 12 and the rack 10, preventing displacement and detachment between the gear 12 and the rack.

[0024] The spring oscillator mechanism includes an oscillator 5, which is a rectangular parallelepiped with a symmetrical cut at its center. Bearing mounting slots are formed on both sides of the oscillator 5. Linear sliding bearings 9 are mounted on the oscillator 5 through these slots. The linear sliding bearings 9 are slidably mounted on sliding guide rails 3. The sliding guide rails 3 pass through the oscillator 5 and engage with the bearings, allowing the oscillator 5 to slide along the sliding guide rails 3. The engagement of the linear sliding bearings 9 and the sliding guide rails 3 significantly reduces frictional resistance during the oscillator 5's movement, effectively improving energy conversion efficiency. Simultaneously, the three support shafts 4 reduce stress on the sliding guide rails 3, distributing force and preventing stress concentration. A vertically oriented central hole is formed in the center of the oscillator 5, through which a threaded shaft 18 passes. A first nut 17 and a second nut 19 are threaded onto the threaded shaft 18. The first nut 17 is fixedly abutted against the top of the oscillator 5, and the second nut 19 is fixedly abutted against the bottom of the oscillator 5, realizing the connection between the threaded shaft 17 and the second nut 19. The spring 2 and the oscillator 5 are fixed together by adding weights to the threaded shaft 18 to change the mass of the oscillator, thereby adjusting the stiffness of the spring 2 and the mass of the oscillator 5 according to the sea conditions to achieve the most suitable natural frequency. The top of the threaded shaft 18 is provided with a hook 16, which is fixedly connected to the bottom of the upper cover plate 1 by the spring 2. The electromagnetic power generation mechanism includes a vertical bearing seat set on the lower cover plate 8, a vertical bearing 14 is provided on the vertical bearing seat, a drive shaft is fixedly passed through the gear 12, and the two ends of the drive shaft pass through the vertical bearing 14 and are connected to the coupling 6. The coupling 6 is connected to the horizontal shaft of the generator 13 for transmission. The generator 13 is set on the support frame 15. The gear and rack mechanism is set on the oscillator 5. Under the combined action of wave force and spring force, the oscillator 5 reciprocates along the sliding guide rail 3, driving the rack 10 to move. Through the meshing transmission of the gear and rack, the gear 12 will rotate. This rotation will be transmitted to the generator 13 through the drive shaft and the coupling 6, thereby generating electrical energy.

[0025] This invention is an oscillating float-type wave energy device. When waves act on a floating body in the ocean, the wave force is transmitted to the installation foundation of the oscillating inertial wave energy generator. At this time, the wave energy conversion device will be forced to vibrate due to the external excitation of wave energy. The oscillator 5 moves back and forth in a straight line along the sliding guide rail 3. The reciprocating linear motion is converted into continuous rotational motion through the combination of rack 10 and gear 12. The transmission mechanism drives the generator 13 to work, thereby generating alternating current and outputting electrical energy to the outside.

[0026] In the description of this invention, it should be noted that the terms "center," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A helical inertial wave energy generation device, characterized in that: The system includes a support mechanism, on which a sliding guide rail mechanism is fixedly mounted, and on which a spring oscillator mechanism is slidably mounted. The spring oscillator mechanism can convert the captured ocean wave energy into the mechanical energy of the up-and-down movement of the oscillator. The spring oscillator mechanism is connected to an electromagnetic power generation mechanism via a gear and rack mechanism, and the electromagnetic power generation mechanism can convert the mechanical energy of the oscillator into electrical energy. The support mechanism includes an upper cover plate and a lower cover plate fixedly connected by a support shaft. The sliding guide rail mechanism is provided between the upper cover plate and the lower cover plate. The electromagnetic power generation mechanism is mounted on the lower cover plate by a support frame. The spring oscillator mechanism includes an oscillator, on which a linear sliding bearing is mounted via a bearing mounting groove, and which is slidably fitted onto a sliding guide rail. A vertically oriented central hole is formed in the center of the oscillator, through which a threaded shaft passes. A first nut and a second nut are threaded onto the threaded shaft. The first nut is fixedly abutted against the top of the oscillator, and the second nut is fixedly abutted against the bottom of the oscillator. A hook is formed at the top of the threaded shaft, and the hook is fixedly connected to the bottom of the upper cover plate via a spring. A gear and rack mechanism is mounted on the oscillator. Weights can be fitted onto the threaded shaft as needed, allowing adjustment of the spring stiffness and the oscillator mass according to sea conditions to achieve the most suitable natural frequency. The gear and rack mechanism includes a rack mounting plate fixed to one side of the vibrator. A rack is fixedly mounted on the rack mounting plate. The rack mounting plate can be adjusted to ensure the meshing of the gear and rack and prevent displacement between the gear and rack, thus preventing them from falling off.

2. The helical inertial wave energy generation device according to claim 1, characterized in that: The sliding guide mechanism includes a fixed pad fixed to the bottom of the upper cover plate and the top of the lower cover plate. A bearing seat is installed on the fixed pad, and two cylindrical sliding guide rails are connected inside the bearing seat.

3. The helical inertial wave energy generation device according to claim 2, characterized in that: The linear sliding bearing is slidably mounted on the sliding guide rail.

4. The helical inertial wave energy generation device according to claim 3, characterized in that: The rack is meshed with a gear, and the gear is connected to the electromagnetic power generation mechanism.

5. The helical inertial wave energy generation device according to claim 4, characterized in that: The rack and gear have the same module.

6. The helical inertial wave energy generation device according to claim 4, characterized in that: The electromagnetic power generation mechanism includes a vertical bearing seat mounted on the lower cover plate, a vertical bearing mounted on the vertical bearing seat, a transmission shaft fixedly mounted on the gear, and couplings connected to both ends of the transmission shaft after passing through the vertical bearing. The couplings are connected to the horizontal shaft of the generator for transmission. The generator is mounted on the support frame.

7. The helical inertial wave energy generation device according to claim 3, characterized in that: The oscillator has a cuboid structure, and the center of the oscillator is symmetrically cut.

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