A low-altitude mechanical rectifier power output device and its working method

Abstract

A low-altitude mechanical rectifier power output device and its working method belong to the field of offshore renewable energy power generation. The mechanical device mainly consists of three parts: a speed increasing mechanism, a reversing mechanism and a mechanical rectifier mechanism. Among them, the speed increasing mechanism converts the slow rotation whose swing period is consistent with the wave frequency into high-speed rotating mechanical energy that can be used by the generator, and the reversing mechanism efficiently converts the mechanical energy in the form of reciprocating swing into unidirectional rotating mechanical energy; and the mechanical rectifier mechanism can ensure the stability of mechanical energy output and the unidirectionality of energy transfer direction. In this device, the speed increasing device is divided into two and inserted into the order of the two-way to one-way gear set, which can minimize the negative impact of the gear clearance of the gear set on the mechanical efficiency of the power generation device, and greatly avoid the loss of mechanical efficiency of the device.

Description

Technical Field

[0001] The invention belongs to the field of offshore renewable energy power generation, and in particular relates to a low-altitude mechanical rectifier power output device for wave power generation. Background Art

[0002] Ocean wave energy is an inexhaustible clean energy with the advantages of wide resource distribution, high energy flow density, and friendly technology and environment. The use of ocean wave energy to generate electricity can improve the energy structure and environment, is conducive to the development of marine resources, and has been paid attention to by many countries. In practical applications, the combination of a floating platform and its surrounding Salter wave power generation equipment can not only provide a steady stream of clean electricity, but also carry offshore aquaculture equipment in the middle of the platform, which can solve the power supply problem of offshore aquaculture while significantly reducing operating costs. The Salter wave power generation equipment combined with the platform can not only provide clean energy, effectively protect the environment and develop the aquaculture industry, but also provide communication and navigation services. Because wave energy has the characteristics of low frequency and reciprocating changes over time, in the process of converting wave energy into electrical energy, how to convert irregular energy that changes with time into mechanical energy with uniform rotation output that can be directly used by the generator is a technical problem to be solved. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the present invention proposes a mechanical rectification power output device for wave power generation. The device can play the role of energy conversion and energy rectification in the wave power generation device, thereby improving the mechanical energy conversion efficiency and the total utilization rate of wave energy.

[0004] The technical solution of the present invention is as follows: a low-altitude mechanical rectifier power output device, which includes a buoy body arranged on a wave reflection plate, the side of the wave reflection plate is fixedly connected to a power generation link bridge, and a power generation device is arranged on the power generation link bridge;

[0005] The reciprocating swing input shaft in the power generation device is connected to the first-stage planetary speed increaser through the first-stage speed increaser coupling; the first-stage planetary speed increaser is connected to the input shaft of the gear box through the input coupling, and the input shaft is fixedly connected with a forward input gear and a reverse input gear; the forward input gear and the reverse input gear are both provided with an overrunning clutch, and the forward input gear rotates when the input shaft rotates forward, and the reverse input gear rotates when the input shaft rotates reversely;

[0006] The forward input gear is meshed with the forward output gear, and the reverse input gear is meshed with the flip transition gear and the reverse output gear in sequence; the forward output gear and the reverse output gear are fixed on the output shaft, the output shaft is connected to the secondary planetary speed increaser through the output coupling, and the secondary planetary speed increaser is connected to the mechanical energy storage device through the secondary speed increase coupling; the mechanical energy storage device is provided with an overrunning clutch to limit the one-way transmission of energy from the secondary planetary speed increaser to the mechanical energy storage device; the mechanical energy storage device is connected to the disc generator through the energy storage coupling, and the disc generator is provided with an electric energy output interface.

[0007] A working method of a low-altitude mechanical rectifier power output device comprises the following steps:

[0008] a. When the wave acts on the buoy body and drives the buoy body to move to the left, the buoy body moves through the buoy connecting rod and the upper connecting rod, and then the upper connecting rod connecting shaft rotates in the positive direction;

[0009] b. The upper connecting rod connecting shaft drives the reciprocating swing input shaft to rotate forward, and after passing through the first-stage planetary speed increaser, it drives the input shaft to rotate forward;

[0010] c. The input shaft rotates in the forward direction, driving the forward input gear to rotate. Under the action of the overrunning clutch, the reverse input gear does not rotate; the forward input gear meshes with the forward output gear, driving the output shaft to rotate in the reverse direction;

[0011] d. After being accelerated by the secondary planetary speed increaser, the energy is transferred from the secondary planetary speed increaser to the mechanical energy storage device in one direction under the action of the overrunning clutch of the mechanical energy storage device; the mechanical energy storage device drives the disc generator to generate electricity;

[0012] e. When the wave acts on the buoy body and drives the buoy body to move to the right, the buoy body moves through the buoy connecting rod and the upper connecting rod, and then the upper connecting rod connecting shaft rotates in the opposite direction; the upper connecting rod connecting shaft drives the reciprocating swing input shaft to rotate in the opposite direction, and drives the input shaft to rotate in the opposite direction after passing through the first-stage planetary speed increaser;

[0013] f. The input shaft rotates in the reverse direction, driving the reverse input gear to rotate. Under the action of the overrunning clutch, the forward input gear remains stationary; the reverse input gear meshes with the reverse transition gear and the reverse output gear in sequence, and the reverse output gear reverses to drive the output shaft to rotate in the reverse direction;

[0014] g. After being accelerated by the secondary planetary speed increaser, under the action of the overrunning clutch of the mechanical energy storage device, energy is transferred unidirectionally from the secondary planetary speed increaser to the mechanical energy storage device; the mechanical energy storage device drives the disc generator to generate electricity.

[0015] The beneficial effects of the present invention are as follows: the mechanical device mainly consists of three parts: a speed-increasing mechanism, a reversing mechanism and a mechanical rectifying mechanism. The speed-increasing mechanism can convert the slow rotation, which originally has a swing period consistent with the wave frequency, into high-speed rotating mechanical energy that can be used by the generator, and the sequence of the speed-increasing mechanism and the reversing mechanism can well avoid the weakening of the reciprocating swing energy by the gear clearance in the gear box; the reversing mechanism can efficiently convert the reciprocating swing mechanical energy into unidirectional rotating mechanical energy through a series of special mechanical devices; and the mechanical rectifying mechanism can ensure the stability of the mechanical energy output and the unidirectionality of the energy transmission direction.

[0016] The device can not only convert the mechanical energy of reciprocating swing into the mechanical energy of unidirectional rotation, but also ensure the stability of mechanical energy output and the unidirectionality of energy transmission direction through a special mechanical energy storage device with an overrunning clutch. The speed increasing device in the device is divided into two and inserted into the order of the two-way to one-way gear set, which can minimize the negative impact of the gear gap of the gear set on the mechanical efficiency of the power generation device, and greatly avoid the loss of mechanical efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of a low-altitude mechanical rectifier power output device.

[0018] Figure 2 It is a side view of a low clearance mechanical rectifier power output device.

[0019] Figure 3 This is a diagram of the internal structure of the power generation device.

[0020] Figure 4 This is a side view of the interior of the power generation device.

[0021] Figure 5 This is the state diagram of the forward gear during reverse rotation.

[0022] In the figure: In the figure: 1. Bottom plate of the power generation box, 2. Reverse transition gear, 3. Gearbox sealed shell, 4. Reverse output gear, 5. Forward output gear, 6. Output coupling, 7. Secondary planetary accelerator, 7a, secondary speed increasing coupling, 8. Mechanical energy storage device, 9. Energy storage coupling, 10. Disc generator, 11. Power output interface, 12. Reverse input gear, 13. Forward input gear, 14. Input coupling, 15. First-stage planetary speed increaser, 16. First-stage speed increasing coupling, 17. Reciprocating swing input shaft, 18. Upper connecting rod connecting seat, 19. Wave reflection plate, 20. Float body, 21. Float connecting rod, 22. Upper connecting rod, 23. Power generation device, 24. Power generation link bridge, 25. Overrunning clutch. DETAILED DESCRIPTION

[0023] The invention is described in detail below with reference to the accompanying drawings.

[0024] Figures 1 to 4 A low-altitude mechanical rectifier power output device is shown, which includes a buoy body 20 arranged on a wave reflection plate 19, the side of the wave reflection plate 19 is fixedly connected to a power generation link bridge 24, and a power generation device 23 is arranged on the power generation link bridge 24.

[0025] The reciprocating input shaft 17 in the power generation device 23 is connected to the first-stage planetary speed increaser 15 through the first-stage speed increaser coupling 16; the first-stage planetary speed increaser 15 is connected to the input shaft 13a of the gear box through the input coupling 14, and the forward input gear 13 and the reverse input gear 12 are fixedly connected to the input shaft 13a; the forward input gear 13 and the reverse input gear 12 are both provided with an overrunning clutch, and the forward input gear 13 rotates when the input shaft 13a rotates forward, and the reverse input gear 12 rotates when the input shaft 13a rotates reversely.

[0026] The forward input gear 13 is meshed with the forward output gear 5, and the reverse input gear 12 is meshed with the flip transition gear 2 and the reverse output gear 4 in sequence; the forward output gear 5 and the reverse output gear 4 are fixed on the output shaft, and the output shaft is connected to the secondary planetary speed increaser 7 through the output coupling 6, and the secondary planetary speed increaser 7 is connected to the mechanical energy storage device 8 through the secondary speed increase coupling 7a; the mechanical energy storage device 8 is provided with an overrunning clutch to limit the one-way transmission of energy from the secondary planetary speed increaser 7 to the mechanical energy storage device 8.

[0027] The mechanical energy storage device 8 is connected to the disc generator 10 via an energy storage coupling 9 , and the disc generator 10 is provided with an electric energy output interface 11 .

[0028] When the above technical solution is used, the following steps are included:

[0029] a. When the wave acts on the buoy body 20 and drives the buoy body 20 to move to the left, the buoy body 20 moves through the buoy connecting rod 21 and the upper connecting rod 22, and then the upper connecting rod connecting shaft 18 rotates in the positive direction;

[0030] b. The upper connecting rod connecting shaft 18 drives the reciprocating swing input shaft 17 to rotate forward, and after passing through the first-stage planetary speed increaser 15, drives the input shaft 13a to rotate forward;

[0031] c. The input shaft 13a rotates forward, driving the forward input gear 13 to rotate. Under the action of the overrunning clutch, the reverse input gear 12 does not rotate; the forward input gear 13 meshes with the forward output gear 5, driving the output shaft to rotate in the reverse direction;

[0032] d. After being accelerated by the secondary planetary speed increaser 7, under the action of the overrunning clutch of the mechanical energy storage device 8, energy is unidirectionally transferred from the secondary planetary speed increaser 7 to the mechanical energy storage device 8; the mechanical energy storage device 8 drives the disc generator 10 to generate electricity;

[0033] e. When the wave acts on the buoy body 20 and drives the buoy body 20 to move rightward, the buoy body 20 moves through the buoy connecting rod 21 and the upper connecting rod 22, and then the upper connecting rod connecting shaft 18 rotates in the opposite direction; the upper connecting rod connecting shaft 18 drives the reciprocating swing input shaft 17 to rotate in the opposite direction, and drives the input shaft 13a to rotate in the opposite direction after passing through the first-stage planetary speed increaser 15;

[0034] f. The input shaft 13a rotates in the reverse direction, driving the reverse input gear 12 to rotate. Under the action of the overrunning clutch, the forward input gear 13 does not move; the reverse input gear 13 meshes with the reverse transition gear 2 and the reverse output gear 3 in sequence, and the reverse output gear 3 reverses and drives the output shaft to rotate in the reverse direction;

[0035] g. After being accelerated by the secondary planetary speed increaser 7, under the action of the overrunning clutch of the mechanical energy storage device 8, energy is unidirectionally transferred from the secondary planetary speed increaser 7 to the mechanical energy storage device 8; the mechanical energy storage device 8 drives the disc generator 10 to generate electricity.

[0036] The core component of the device is a special gear box including a forward input gear 13, a forward output gear 5, a reverse input gear 12, a reverse transition gear 2 and a reverse output gear 4, which can convert the reciprocating mechanical energy into unidirectional rotational mechanical energy; the mechanical energy storage device 8 is equipped with an overrunning clutch, which can ensure the smoothness of the mechanical energy output and the unidirectionality of the energy transmission direction.

[0037] The reciprocating mechanical energy will first be accelerated by the first-stage planetary speed increaser 15, and then transferred to the two special gears of the reverse input gear 12 and the forward input gear 13 through the coupling. The reverse input gear 12 and the forward input gear 13 are internally integrated with an overrunning clutch, which can realize one-way rotation. Through the transmission of the gear set of the forward input gear 13, the forward output gear 5, the reverse input gear 12, the reverse transition gear 2 and the reverse output gear 4, the reciprocating mechanical energy can be converted into one-way rotating mechanical energy. This part of energy is further accelerated by the second-stage planetary speed increaser 7, and is transferred to the mechanical energy storage device 8 after the second acceleration. The mechanical energy storage device 8 is provided with an overrunning clutch, which can limit the one-way transmission of energy, that is, the amount of energy can only be transferred from the second-stage planetary speed increaser 7 to the mechanical energy storage device 8, and cannot be transferred from the mechanical energy storage device 8 to the second-stage planetary speed increaser 7. The mechanical energy storage device 8 can convert irregular energy that changes with time into mechanical energy that can be directly used by the generator and output at a uniform speed, and then drive the disc generator 10 to rotate, and finally output electric energy at the electric energy output interface 11.

[0038] The speed increasing part is divided into two parts, front and rear parts, and a two-way to one-way device is inserted in the middle to minimize the negative impact of the gear clearance of the gear set on the mechanical efficiency of the generator.

[0039] The reverse input gear 12 and the forward input gear 13 are gears with overrunning clutches. The structure of the gearbox and the sequence and combination of the gears are specially customized, and they cooperate with each other to realize the function of bidirectional to unidirectional conversion.

[0040] The working conditions of the forward and reverse conversion mechanism are as follows: when the input shaft rotates forward, the overrunning clutch 25 of the forward input gear 13 is locked, and the overrunning clutch 25 of the reverse input gear 12 is disengaged, and the input shaft drives the forward input gear 13 to rotate, thereby driving the output shaft to rotate; when the input shaft rotates reversely, the overrunning clutch 25 of the reverse input gear 12 is locked, and the overrunning clutch 25 of the forward input gear 13 is disengaged, driving the output shaft to rotate reversely. Figure 5 As shown, at this time, the forward input gear 13 rotates in the opposite direction under the action of the rotating output shaft, but because its overrunning clutch 25 is disengaged, although the forward input gear 13 and the input shaft rotate in opposite directions, it will not affect its normal operation.

Claims

1. A low-altitude mechanical rectifier power output device, comprising a buoy body (20) disposed on a wave reflection plate (19), characterized in that: The side of the wave reflection plate (19) is fixedly connected to the power generation link bridge (24), and the power generation link bridge (24) is provided with a power generation device (23); The reciprocating input shaft (17) in the power generation device (23) is connected to a first-stage planetary speed increaser (15) via a first-stage speed increaser coupling (16); the first-stage planetary speed increaser (15) is connected to an input shaft (13a) of a gearbox via an input coupling (14); a forward input gear (13) and a reverse input gear (12) are fixedly connected to the input shaft (13a); both the forward input gear (13) and the reverse input gear (12) are provided with an overrunning clutch; when the input shaft (13a) rotates forward, the forward input gear (13) rotates; and when the input shaft (13a) rotates reversely, the reverse input gear (12) rotates; The forward input gear (13) meshes with the forward output gear (5), and the reverse input gear (12) meshes with the flip transition gear (2) and the reverse output gear (4) in sequence; the forward output gear (5) and the reverse output gear (4) are fixed on an output shaft, the output shaft is connected to a secondary planetary speed increaser (7) via an output coupling (6), and the secondary planetary speed increaser (7) is connected to a mechanical energy storage device (8) via a secondary speed increaser coupling (7a); an overrunning clutch is provided on the mechanical energy storage device (8) to limit the one-way transmission of energy from the secondary planetary speed increaser (7) to the mechanical energy storage device (8); The mechanical energy storage device (8) is connected to the disk-type generator (10) via an energy storage coupling (9), and an electric energy output interface (11) is provided on the disk-type generator (10).

2. The working method of a low-mid-range mechanical rectifier power output device according to claim 1, characterized in that: The following steps are involved: a. When the wave acts on the buoy body (20), driving the buoy body (20) to move to the left, the buoy body (20) moves through the buoy connecting rod (21) and the upper connecting rod (22), and then the upper connecting rod connecting shaft (18) rotates in the positive direction; b. The upper connecting rod connecting shaft (18) drives the reciprocating swing input shaft (17) to rotate in the positive direction, and after passing through the first-stage planetary speed increaser (15), drives the input shaft (13a) to rotate in the positive direction; c. The input shaft (13a) rotates in the forward direction, driving the forward input gear (13) to rotate, and the reverse input gear (12) does not rotate under the action of the overrunning clutch; the forward input gear (13) meshes with the forward output gear (5), driving the output shaft to rotate in the reverse direction; d. After being accelerated by the secondary planetary speed increaser (7), energy is unidirectionally transferred from the secondary planetary speed increaser (7) to the mechanical energy storage device (8) under the action of the overrunning clutch of the mechanical energy storage device (8); the mechanical energy storage device (8) drives the disc generator (10) to generate electricity; e. When the wave acts on the buoy body (20), driving the buoy body (20) to move rightward, the buoy body (20) moves through the buoy connecting rod (21) and the upper connecting rod (22), and then the upper connecting rod connecting shaft (18) rotates in the opposite direction; the upper connecting rod connecting shaft (18) drives the reciprocating swing input shaft (17) to rotate in the opposite direction, and drives the input shaft (13a) to rotate in the opposite direction after passing through the first-stage planetary speed increaser (15); f. The input shaft (13a) rotates in the reverse direction, driving the reverse input gear (12) to rotate. Under the action of the overrunning clutch, the forward input gear (13) remains stationary; the reverse input gear (12) meshes with the reverse transition gear (2) and the reverse output gear (4) in sequence, and the reverse output gear (4) rotates in the reverse direction, thereby driving the output shaft to rotate in the reverse direction; g. After being accelerated by the secondary planetary speed increaser (7), energy is unidirectionally transferred from the secondary planetary speed increaser (7) to the mechanical energy storage device (8) under the action of the overrunning clutch of the mechanical energy storage device (8); the mechanical energy storage device (8) drives the disc generator (10) to generate electricity.

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