Variable inertia flywheel for wave energy power generation stable output

Abstract

The present application relates to a kind of variable inertia flywheel for wave energy power generation stable output, it mainly includes primary flywheel, ratchet slider, secondary flywheel, ordinary slider and flywheel support;The primary flywheel is installed on wave energy power generation device output shaft, the ratchet slider can move on the connecting rod of primary flywheel, the secondary flywheel is equipped with ordinary slider, the flywheel support hollow shaft is installed secondary flywheel, can make output shaft pass without contact with it.In the present application, when the output shaft of wave energy power generation device rotates, ratchet slider will be away from shaft hole, and when the speed increases to the ratchet slider contact the ratchet inside secondary flywheel, secondary flywheel starts to rotate to make the speed of output shaft reduce, and ordinary slider can further adjust overall inertia, to realize the improvement of wave energy device in extreme working condition electric energy output stability, and two-stage structure because it does not need to use oversized diameter flywheel can adapt to the characteristics of the small internal space of wave energy device.

Description

Technical Field

[0001] This invention relates to the field of wave energy output technology, and in particular to a variable inertia flywheel for stable output of wave energy power generation. Background Technology

[0002] With the vigorous development of renewable and clean energy, how to ensure the stable output of wave energy power generation devices has become a key technical challenge that needs to be overcome in related fields. Among existing wave energy power generation devices, spring-slider type variable inertia flywheels have gradually become a widely used stable output structure. However, due to the limited internal space of wave energy power generation devices, the design size of traditional variable inertia flywheels is often restricted, resulting in a limited adjustment range for a single variable inertia flywheel. If multiple variable inertia flywheels are directly connected in parallel on the output shaft, the problem of difficulty in starting the energy conversion unit will arise, especially when the wave amplitude is small and the output shaft speed is very low. At this time, the flywheel becomes a burden on the device. Summary of the Invention

[0003] To address the aforementioned problems, the present invention aims to provide a variable inertia flywheel for stable output of wave energy power generation, which can improve the stability of power output of wave energy devices under extreme operating conditions and can adapt to the narrow space inside wave energy devices.

[0004] The technical solution adopted in this invention is as follows:

[0005] The present invention proposes a variable inertia flywheel for stable output of wave energy power generation, comprising a primary flywheel, spring I, connecting rod I, ratchet slider, secondary flywheel, internal ratchet, hollow shaft, and support; the hollow shaft is vertically fixed to the upper front side of the support; the secondary flywheel is mounted on the hollow shaft via bearings; the front end face of the secondary flywheel has a coaxial circular groove, and the inner circumference of the circular groove is provided with evenly distributed internal ratchet; the primary flywheel is coaxially disposed on the front side of the secondary flywheel; the surface of the primary flywheel has a plurality of evenly distributed internal ratchet teeth. Radial through groove; the connecting rods I are respectively disposed inside the radial through groove; the ratchet sliders are respectively disposed on each connecting rod I; the ratchet slider is composed of a slider and an external ratchet fixed to one end of the slider, the slider end is respectively disposed inside the radial through groove and slidably connected to the connecting rod I, the external ratchet end is located inside the circular groove and corresponds to the internal ratchet; the springs I are respectively disposed outside the connecting rod I, one end abutting against the outer inner surface of the radial through groove, and the other end abutting against the outer surface of the slider end of the ratchet slider.

[0006] Furthermore, the rear end face of the secondary flywheel is evenly distributed with several radial grooves, and a connecting rod II is respectively provided inside the radial groove. A common slider is provided inside the radial groove, and the common slider is slidably connected to the connecting rod II. A spring II is provided outside the connecting rod II. One end of the spring II abuts against the inner surface of the outer side of the radial groove, and the other end abuts against the outer surface of the common slider.

[0007] Furthermore, the bracket includes a base and a support plate; the support plate is fixedly connected to the middle of the upper surface of the base; the hollow shaft is fixedly connected vertically to the middle of the upper side of the front end face of the support plate.

[0008] Furthermore, the secondary flywheel is provided with a central shaft hole, through which bearings on both the front and rear sides are mounted on the hollow shaft to form a rotating pair.

[0009] Furthermore, when the slider end of the ratchet slider compresses the spring I to its limit, the outer ratchet end of the ratchet slider is in complete contact with the inner ratchet.

[0010] Furthermore, the first-stage flywheel is provided with a central shaft hole, and is coaxially fixed to the output shaft of the wave energy power generation device through the central shaft hole.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. This invention replaces the traditional variable inertia flywheel slider with a ratchet slider. When rotating at high speed, the ratchet slider moves outward radially along the primary flywheel and contacts the inner ratchet of the secondary flywheel, thereby driving the secondary flywheel to rotate. The secondary flywheel also has four ordinary sliders to adapt to the inertia adjustment when the speed increases. This method of connecting two variable inertia flywheels in series can greatly expand the overall inertia adjustment range of the flywheel.

[0013] 2. In this invention, the secondary flywheel is mounted on a hollow shaft that does not contact the output shaft. It is only driven when the ratchet slider contacts the inner ratchet of the secondary flywheel, thus avoiding the situation where the overall inertia of the flywheel is too large in the initial state and hinders the rotation of the output shaft.

[0014] 3. Compared with a single traditional variable inertia flywheel, this series structure of the present invention has a smaller flywheel diameter while achieving the same inertia adjustment range, thus enabling it to adapt to the narrow internal space of wave energy power generation devices. Attached Figure Description

[0015] Figure 1 This is a breakdown diagram of the overall structure of the present invention;

[0016] Figure 2 This is a side cross-sectional view of the present invention.

[0017] Figure 3This is a rear view of the first-stage flywheel in this invention;

[0018] Figure 4 This is an enlarged schematic diagram of the ratchet slider in this invention;

[0019] Figure 5 This is a rear view of the secondary flywheel in this invention.

[0020] In the diagram: 1-First-stage flywheel; 2-Spring I; 3-Connecting rod I; 4-Ratchet slider; 41-Slider; 42-External ratchet; 5-Second-stage flywheel; 6-Spring II; 7-Connecting rod II; 8-Ordinary slider; 9-Bearing; 10-Internal ratchet; 11-Hollow shaft; 12-Bracket; 121-Base; 122-Support plate; 13-Output shaft; 14-Radial through groove; 15-Radial groove. Detailed Implementation

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] It should be noted that in the description of this invention, the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not mean that the device or element must have a specific orientation, or be constructed and operated in a specific orientation.

[0023] See appendix Figure 1-5 This paper presents a specific structure of an embodiment of a variable inertia flywheel for stable output of wave energy power generation proposed in this invention. In this embodiment, the variable inertia flywheel includes a primary flywheel 1, a spring I 2, a connecting rod I 3, a ratchet slider 4, a secondary flywheel 5, an internal ratchet 10, a hollow shaft 11, and a support 12.

[0024] Among them, such as Figure 1 As shown, the bracket 12 includes a base 121 and a support plate 122; the base 121 has a rectangular structure and the support plate 122 has a triangular structure; the support plate 122 is vertically fixed to the middle of the upper surface of the base 121; the hollow shaft 11 is vertically fixed to the middle of the upper side of the front end face of the support plate 122.

[0025] like Figure 2As shown, the secondary flywheel 5 is provided with a central shaft hole, and bearings 9 on both the front and rear sides of the central shaft hole are mounted on the hollow shaft 11 to form a rotating pair; the front end face of the secondary flywheel 5 is coaxially provided with a circular groove, and the inner circumference of the circular groove is provided with a structure of evenly distributed internal ratchet teeth 10; the primary flywheel 1 is coaxially provided on the front side of the secondary flywheel 5, and the primary flywheel is also provided with a central shaft hole, and is coaxially fixed to the output shaft 13 of the wave energy power generation device through the central shaft hole. In this embodiment, the surface of the first-stage flywheel 1 is evenly distributed with four radial through grooves 14, and the portion between every two radial through grooves 14 is provided with the same fan-shaped through groove; the connecting rods I3 are respectively radially fixed inside the radial through grooves 14; the ratchet sliders 4 are respectively correspondingly arranged on each connecting rod I3; wherein, the ratchet slider 4 is composed of a slider 41 and an outer ratchet 42 fixed to one end of the slider 41, the end of the slider 41 is correspondingly arranged inside the radial through groove 14 and radially slidably connected to the connecting rod I3, the end of the outer ratchet 42 is radially located behind the first-stage flywheel 1 and located inside the circular groove, and the outer ratchet 42 corresponds to the inner ratchet 10; the springs I2 are respectively correspondingly arranged outside the connecting rods I3, and the outer end of the spring I2 abuts against the inner surface of the outer end of the radial through groove 14, and the inner end abuts against the outer surface of the slider 41 of the ratchet slider. When the slider 41 of the ratchet slider compresses the spring I2 to the limit, the outer ratchet 42 of the ratchet slider is fully engaged with the inner ratchet 10.

[0026] like Figure 5 As shown, in this embodiment, four radial grooves 15 are evenly distributed around the rear end face of the secondary flywheel 5, and a connecting rod II 7 is fixed radially inside each radial groove 15; a common slider 8 is provided inside the radial groove 15, and the common slider 8 is slidably connected to the connecting rod II 7; a spring II 6 is also provided on the outside of the connecting rod II 7, and the outer end of the spring II 6 abuts against the inner surface of the outer end of the radial groove 15, and the inner end abuts against the outer surface of the common slider 8.

[0027] The working principle of this invention is as follows: The first-stage flywheel 1, installed on the output shaft 13 of the wave energy generator, will change its moment of inertia as the rotational speed of the output shaft 13 gradually increases. At this time, the four ratchet sliders 4 will start to squeeze the spring I2 on the connecting rod I3 and move towards the edge of the first-stage flywheel 1. As the rotational speed continues to increase, the outer ratchet 42 of the four ratchet sliders will start to contact the inner ratchet 10 on the second-stage flywheel 5. At this time, the second-stage flywheel 5 will start to rotate. As the rotational speed further increases, the four ratchet sliders 4 will squeeze the spring I2 to the limit of compression. At this time, the outer ratchet 42 and the inner ratchet 10 are completely in contact. If the rotational speed of the output shaft 13 continues to increase, the moment of inertia of the second-stage flywheel 5 will also begin to change. The four ordinary sliders 8 will start to squeeze the spring II6 and move towards the edge of the second-stage flywheel 5 until the spring II6 is squeezed to the limit of compression. At this time, the upper limit of the speed regulation designed by this invention is reached.

[0028] All matters not covered in this invention are common knowledge.

[0029] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A variable inertia flywheel for stable output of wave energy power generation, characterized in that: It includes a primary flywheel, spring I, connecting rod I, ratchet slider, secondary flywheel, internal ratchet, hollow shaft, and bracket; the hollow shaft is vertically fixed to the upper front side of the bracket; The secondary flywheel is mounted on the hollow shaft via bearings; a circular groove is coaxially formed on the front end face of the secondary flywheel, and evenly distributed internal ratchet teeth are provided on the inner circumference of the circular groove; the primary flywheel is coaxially disposed on the front side of the secondary flywheel; several radial through grooves are evenly distributed on the circumference of the surface of the primary flywheel; the connecting rod I is respectively disposed inside the radial through grooves; the ratchet slider is respectively disposed on each connecting rod I; the ratchet slider consists of a slider and an external ratchet tooth fixed to one end of the slider, the slider end is correspondingly disposed on the inner side of the radial through groove and slidably connected to the connecting rod I, and the external ratchet tooth end is located inside the circular groove and corresponds to the internal ratchet tooth; the spring I is respectively disposed on the outside of the connecting rod I, with one end abutting against the inner surface of the outer side of the radial through groove and the other end abutting against the outer surface of the slider end of the ratchet slider.

2. A variable inertia flywheel for stable output of wave energy power generation according to claim 1, characterized in that: The rear end face of the secondary flywheel is evenly distributed with several radial grooves. A connecting rod II and a regular slider are respectively arranged inside the radial grooves, and the regular slider is slidably connected to the connecting rod II. A spring II is arranged on the outside of the connecting rod II. One end of the spring II abuts against the inner surface of the outer side of the radial groove, and the other end abuts against the outer surface of the regular slider.

3. A variable inertia flywheel for stable output of wave energy power generation according to claim 1, characterized in that: The bracket includes a base and a support plate; the support plate is fixedly connected to the middle of the upper surface of the base; the hollow shaft is fixedly connected vertically to the middle of the upper side of the front end face of the support plate.

4. A variable inertia flywheel for stable output of wave energy power generation according to claim 1, characterized in that: The secondary flywheel is provided with a central shaft hole, and bearings on both the front and rear sides of the central shaft hole are mounted on the hollow shaft to form a rotating pair.

5. A variable inertia flywheel for stable output of wave energy power generation according to claim 1, characterized in that: When the slider end of the ratchet slider compresses the spring I to its limit, the outer ratchet end of the ratchet slider is in complete contact with the inner ratchet.

6. A variable inertia flywheel for stable output of wave energy power generation according to claim 1, characterized in that: The first-stage flywheel is provided with a central shaft hole, and is coaxially fixed to the output shaft of the wave energy power generation device through the central shaft hole.

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