Parallel-connection double-rocker-arm four-floater wave energy power generation device and installation method thereof

Abstract

The invention relates to a parallel-connection double-rocker-arm four-floater wave energy power generation device and an installation method thereof.The device is composed of two conversion modules, a variable-speed power generation module and a fixing frame, and each conversion module comprises a floater, a double-rocker arm and a transmission case; the double-rocker rocker arm comprises a rack, a long rocker, a connecting rod, a short rocker, a hoop set, a hinge shaft assembly and a locking bolt set. The transmission case comprises an inner gear ring, a reversing gear, a one-way clutch gear, a gear ring bearing, a gear ring seal, a blank cap end plate, a bolt head bolt assembly, a transmission shaft bearing, a reversing shaft, an output shaft, a transparent cover end plate, a transparent cover seal, a spacer bush set and a jackscrew assembly. The variable-speed power generation module comprises a coupler, an intermediate shaft, a transmission, a flywheel and a generator set; the invention also provides a special installation method. The wave energy power generation device is compact, safe, efficient, wide in application and particularly suitable for meeting the requirements for small and medium-sized wave energy power generation devices.

Description

Technical Field

[0001] The present invention relates to the technical field of wave energy power generation, in particular to a parallel double-rocker rocker arm four-float wave energy power generation device and an installation method thereof. Background Art

[0002] Currently, most wave energy power generation devices on the market are of the oscillating water column type, pendulum type, and oscillating float type. Due to the high conversion efficiency of gear transmission and its simplicity and reliability, they have been widely used. Oscillating float wave energy power generation devices based on gear transmission mechanisms can be further subdivided into gear rack vertical oscillation wave energy conversion devices and rocker swing wave energy power generation devices. Rocker swing wave energy power generation devices use floats on the water surface to move up and down with the waves, absorbing the energy of the up and down movement of the waves. Then, through an energy conversion mechanism connected to the rocker arm (including mechanical transmission mechanism, hydraulic transmission mechanism, etc.), this converts the wave energy into rotational mechanical energy. However, current rocker swing wave energy power generation devices, especially the mechanical transmission method, still have some problems and need further improvement and perfection.

[0003] Patent CN118934413A discloses an offshore wave energy power generation device, including an offshore platform, an energy conversion mechanism, including a generator provided on the offshore platform, a gear set provided on the generator, and a drive shaft provided on the gear set; a rotating mechanism, including a housing provided on the offshore platform, and a rotating wheel provided in the housing, wherein a coil spring is provided in the rotating wheel. After the coil spring is used to connect the drive shaft and the rotating wheel, when the rotating wheel rotates, the starting process of the generator slows down. When the rotating wheel rotates intermittently, it can have a certain buffering capacity, and the coil spring gradually releases the force and energy, so that the rotation of the generator lasts longer. However, the above-mentioned offshore wave energy power generation device still has the following major defects and problems: 1. The movement of the floating barrel will push the one-way push arm to perform a rotational motion that alternates between forward and reverse rotation. The rotating wheel can only rotate in one direction due to the limitation of the one-way locking part. During the rotation process, the one-way push arm can only push the rotating wheel in one direction, that is, the movement generated by the waves can only intermittently push the rotating wheel to rotate in one direction. Therefore, the above-mentioned offshore wave energy power generation device can only capture the energy generated in a single stroke of the one-way push arm's forward and reverse rotation. As a result, a lot of captured energy is lost, and when the wave height on the sea surface is low, the coil spring is slightly compressed, making it difficult to drive or even impossible to drive the gear set and generator, causing the generator to turn and stop intermittently, thereby shortening the service life of the generator and low power generation efficiency.

[0004] 2. Due to the limitation of the one-way locking member, the rotating wheel can only rotate in one direction, and its operating speed fluctuates greatly. In addition, the compression absorption and extension release of the coil spring cannot achieve the effect of smoothing the rotation of the generator rotor. It can only play a buffering role, but cannot play a role in speed balancing. As a result, it is impossible to ensure that the speed unevenness coefficient of the generator main shaft is within the allowable value range specified in the national standard GB / T 755. As a result, the generator cannot generate electricity normally, which seriously affects the power generation efficiency.

[0005] 3. The overall structure of the above-mentioned offshore wave energy power generation device is relatively complex, especially the one-way locking mechanism of the coil spring and the rotating wheel, which requires high installation precision. The manufacturing, installation, and subsequent disassembly and maintenance of the device are quite difficult.

[0006] 4. Since the height of the offshore platform is relatively high above the still sea level, a large angle is formed between the theoretical rocker line (the line connecting the center of mass of the float and the center of rocker swing) and the sea level. This angle greatly reduces the efficiency of the float in capturing wave energy under wave excitation, thereby affecting the power generation efficiency.

[0007] 5. In the above-mentioned offshore wave energy power generation device, one float can only drive one set of variable speed power generation modules independently, and it is not possible to realize that multiple floats drive one set of variable speed power generation modules. Its wave energy capture and overall power generation efficiency are low. Summary of the Invention

[0008] The purpose of the present invention is to provide a parallel double rocker arm four-float wave energy power generation device and its installation method and installation method to address the deficiencies of the existing technology, so as to solve the above-mentioned problems existing in the wave energy power generation device in the above-mentioned prior art.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions: A parallel double-rocker arm four-float wave energy power generation device includes two sets of conversion modules and one set of variable-speed power generation module, all of which are fixed on a fixed frame; the conversion modules include two floats, two transmission boxes, two double-rocker arms, and two parallel gears respectively fixed to the extended parts of the output shaft of the transmission box and externally meshing with each other, one end of the double-rocker arm is connected to the float, and the other end is connected to the transmission box; the variable-speed power generation module includes a coupling, an intermediate shaft, a transmission, a flywheel and a generator; one set of conversion modules is connected to the low-speed shaft of the transmission through a coupling, and the other set of conversion modules is connected to the low-speed shaft of the transmission through the intermediate shaft and the couplings at both ends of the intermediate shaft; the high-speed shaft of the transmission is connected to the generator, and a flywheel is installed on the high-speed shaft.

[0010] Furthermore, the transmission box includes a ring gear shaft system, an output shaft system, a reversing shaft system and a support system; the ring gear shaft system includes an inner ring gear that can rotate in both directions, a ring gear bearing, and a ring gear seal; the output shaft system includes an output shaft, a one-way clutch gear, a reversing gear, a transmission shaft bearing, a transparent cover seal, and a spacer set; the reversing shaft system includes a reversing shaft, a one-way clutch gear, a reversing gear, a transmission shaft bearing, and a spacer set; the support system includes a blind cover end plate, a transparent cover end plate, a top screw assembly, and a stud bolt assembly; the blind cover end plate includes: a blind cover ring gear bearing seat, two blind cover bearing seats located inside the blind cover ring gear bearing seat, a blind cover stud bolt hole located outside the diameter of the blind cover ring gear bearing seat, a blind cover top screw hole at the outside of the blind cover end plate corresponding to the blind cover bearing seat, and a blind cover bottom foot hole at the bottom foot of the blind cover end plate; the transparent cover end plate includes: a transparent cover ring gear bearing seat, a blind cover shaft located inside the transparent cover ring gear shaft The blind hole bearing seat and through hole bearing seat in the bearing seat, the output shaft hole, the transparent cover stud bolt hole located outside the diameter of the transparent cover gear ring bearing seat, the transparent cover top screw hole corresponding to the blind hole bearing seat on the outside of the transparent cover end plate, and the transparent cover bottom foot hole at the bottom foot of the transparent cover end plate; the support system of the transmission case includes a transparent cover end plate and a blind cover end plate, the gear ring shaft system, the output shaft system, and the reversing shaft system are clamped and installed between the transparent cover end plate and the blind cover end plate, among which the transparent cover gear ring bearing seat and the blind cover gear ring bearing seat supporting the gear ring shaft system, the blind hole bearing seat and the blind cover bearing seat supporting the reversing shaft system, the through hole bearing seat and the blind cover bearing seat supporting the output shaft system and the stud bolt holes of the two end plates are all coaxial with each other, the one-way clutch gears of the output shaft system and the reversing shaft system inside the transmission case are meshed with the inner teeth of the inner ring gear, and the reversing gears on the output shaft system and the reversing shaft system are externally meshed with each other.

[0011] Furthermore, the top screw assembly includes a top screw and a locking nut and a sealing gasket sleeved on the top screw. The top screw assembly is installed on the corresponding transparent cover top screw screw holes and the blind cover top screw screw holes of the transparent cover end plate and the blind cover end plate.

[0012] Furthermore, the double rocker arm includes a frame, a long rocker, a connecting rod, a short rocker, a clamp group, a hinge shaft and a locking bolt group, one end of the long rocker is fixedly connected to the float, the other end of the long rocker is rotatably connected to the frame through a hinge shaft, the frame is fixedly connected to the bottom of the fixed frame, the lower end of the connecting rod is rotatably connected to the middle part of the long rocker through a hinge shaft, the upper end of the connecting rod is rotatably connected to one end of the short rocker through a hinge shaft, and the other end of the short rocker is fixedly connected to the inner gear ring through a clamp group; the clamp group includes a plurality of components that are tightly fitted and fixed to the inner gear ring. The connected clamp ring is fixedly connected to one end of the short rocker arm through a clamp bolt group and a clamp reinforcement plate; the hinge shaft is fixedly connected to the upper and lower ends of the connecting rod and the lower end of the frame rod through a locking bolt group, and the hinge shaft is provided with a bearing at the hinge center with the long rocker arm and the short rocker arm, and sealing rings are provided at both end surfaces of the bearing. The outer diameter of the bearing is fixedly installed with a bearing sleeve, and the bearing sleeves are fixedly arranged inside the long rocker arm and the short rocker arm respectively. The hinge shaft is installed on the long rocker arm and the short rocker arm respectively through a bearing cover plate and corresponding cover plate bolts.

[0013] Furthermore, the frame includes a frame rod, a rib plate, a frame bottom plate and a frame bolt group, the lower end of the frame rod is rotatably connected to the long rocker, the upper end of the frame rod is fixedly connected to the frame bottom plate through the rib plate, and the frame bottom plate is fixedly connected to the fixing frame through the frame bolt group.

[0014] Furthermore, the fixing frame is provided with a box frame connection hole, a floating frame connection hole, a transmission fixing hole and a generator mounting hole, and the box frame connection hole corresponds to the transparent cover bottom foot hole and the blind cover bottom foot hole provided on the transparent cover end plate and the blind cover end plate.

[0015] A method for installing a parallel double-rocker rocker arm four-float wave energy power generation device includes the following installation method for two transmission boxes in a set of conversion modules: Step 1: For a transmission box connected to a coupling, the driving direction of the one-way clutch gear connected to the output shaft is defined as the forward rotation direction, and it is determined that only the forward rotation of the one-way clutch gear can drive the output shaft to rotate forward, otherwise it will idle and slip; the driving direction of the one-way clutch gear connected to the reversing shaft is set to the reverse rotation direction, and it is determined that only the reverse rotation of the one-way clutch gear can drive the reversing shaft to rotate in the reverse direction, otherwise it will idle and slip; Step 2: For another transmission box, The driving direction of the connected one-way clutch gear is set to the reverse rotation direction, and it is determined that only the reverse rotation of the one-way clutch gear can drive the output shaft to rotate in the reverse direction, otherwise it will idle and slip; the driving direction of the one-way clutch gear connected to the reversing shaft is set to the forward rotation direction, and it is determined that only the forward rotation of the one-way clutch gear can drive the reversing shaft to rotate in the forward direction, otherwise it will idle and slip; the third step: according to the principle that the driving directions of the two one-way clutch gears in the same transmission box are opposite, the output shafts of the two adjacent parallel transmission boxes have opposite driving directions, and the output shafts of the two transmission boxes connected to the low-speed shaft of the transmission have the same driving directions, complete the installation of the four transmission boxes.

[0016] Furthermore, the installation method of the parallel double rocker arm four-float wave energy power generation device is as follows: for a set of conversion modules at one end of the fixed frame: step 1: complete the assembly of the two transmission boxes according to the process requirements; step 2: complete the assembly of the two parallel gears according to the process requirements; step 3: complete the assembly of the two double rocker arms according to the process requirements; step 4: install and position the two frames and the two transmission boxes on the fixed frame according to the process requirements through the frame bolt group, and complete the installation of one end of the two double rocker arms and the corresponding transmission boxes according to the process requirements through the clamp group; step 5: install the two floats on the corresponding double rocker arms according to the process requirements On; For the set of conversion modules at the other end of the fixed frame: repeat the above steps 1 to 5, and note that the driving directions of the output shafts connected to the transmission at both ends of the fixed frame are the same; Step 6: Install the transmission, flywheel and generator on the fixed frame in sequence and according to the process requirements; Step 7: Use the coupling to install one of the output shafts in one set of conversion modules to the transmission in accordance with the process requirements, and use the intermediate shaft and coupling to install one of the output shafts in the other set of conversion modules to the transmission in accordance with the process requirements; Step 8: Use the floating frame connection hole on the fixed frame to install and position the wave energy power generation device as a whole on the offshore floating platform or other offshore power generation structure.

[0017] Compared with the prior art, the present invention has the following beneficial effects: First, the four transmission boxes are connected in parallel in pairs. Based on the double-stroke work of the four floats, an average of 8 pulsating output torque superposition work is achieved within one wave cycle. Compared with the wave energy power generation device with a single float and double-stroke work, the output rotation speed fluctuation value is reduced by nearly 80%, which significantly improves the power generation efficiency.

[0018] Second, the typical double-rocker mechanism in mechanics is applied to the rocker-type wave energy power generation device, which solves the problem of the rocker swing center being too high, and makes the theoretical rocker line (the line connecting the center of mass of the float and the rocker swing center) basically parallel to the still sea level, so that the float can capture wave energy to the maximum extent.

[0019] Third, the transmission box adopts a one-cylinder, two-shaft, four-gear internal meshing structural design with a differential overrunning function; the power synthesis of multiple floats is superimposed on a set of variable-speed power generation modules, realizing the double-stroke work of the rocker arm swinging up and down. Compared with the open external meshing transmission box, the transmission efficiency is increased from 70% to more than 90%. Combined with the flywheel energy storage balancing effect, the generator speed can reach within the national standard allowable value range.

[0020] Fourth, the generator boasts a compact structure, high transmission torque, excellent overall rigidity, and seals with lubrication. Combined with specialized installation methods, it is simple to manufacture, operate, and maintain. This design is well-suited for small and medium-sized wave power generation installations, particularly those located on platforms where the center of the boom swing is high above the still sea level. This provides an important foundation for the construction of wave power generation installations on ships, vessels, and higher platforms. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a front view and an axonometric view of the transmission of the present invention; Figure 3 The front view and top view of the double rocker arm of the present invention; Figure 4 for Figure 3 Middle CC section view; Figure 5 for Figure 4 A partial enlarged view of point A in the middle; Figure 6 for Figure 3 A partial enlarged view of point B in the middle; Figure 7 Schematic diagram of the structure of the clamp assembly in the present invention; Figure 8 It is a structural diagram of the transmission box of the present invention and a partial enlarged view of point A; Figure 9 is a cross-sectional view of the transmission case of the present invention; Figure 10The front view and BB cross-sectional view of the end plate of the cover in the present invention; Figure 11 It is a front view and a partial cross-sectional view of the CC portion of the transparent cover end plate in the present invention; Figure 12 for Figure 11 Axonometric view of a partial section at the middle CC; Figure 13 Schematic diagram of the structure of the inner gear ring in the present invention; Figure 14 Schematic diagram of the structure of the one-way clutch gear in the present invention, wherein (a) is a partial cross-sectional schematic diagram, (b) is an axonometric diagram; (c) is a schematic diagram of the gear symbol; Figure 15 It is the transmission principle diagram of the transmission box in the present invention; Figure 16 It is a structural schematic diagram of the fixing frame in the present invention.

[0022] Wherein, the accompanying drawings are marked as follows: 1. Float; 2. Double rocker arm; 2.1. Frame; 2.1.1. Frame rod; 2.1.2. Rib plate; 2.1.3. Frame bottom plate; 2.1.4. Frame bolt assembly; 2.2. Long rocker; 2.3. Connecting rod; 2.4. Short rocker; 2.5. Clamp assembly; 2.5.1. Clamp ring; 2.5.2. Clamp bolt assembly; 2.5.3. Clamp reinforcement plate; 2.6. Articulated shaft; 2.6.1. Bearing cover plate; 2.6.2. Cover Plate bolts; 2.6.3, bearing sleeve; 2.6.4, sealing ring; 2.6.5, bearing; 2.7, locking bolt assembly; 3, transmission case; 3.1, inner ring gear; 3.2, reversing gear; 3.3, one-way clutch gear; 3.4, ring gear bearing; 3.5, ring gear seal; 3.6, blind cover end plate; 3.6.1, blind cover top screw hole; 3.6.2, blind cover bottom foot hole; 3.6.3, blind cover stud bolt hole; 3.6.4, blind cover gear Ring bearing seat; 3.6.5, blind cover bearing seat; 3.7, stud bolt assembly; 3.8, drive shaft bearing; 3.9, reversing shaft; 3.10, output shaft; 3.11, cover end plate; 3.11.1, cover top screw hole; 3.11.2, cover foot hole; 3.11.3, cover stud bolt hole; 3.11.4, output shaft hole; 3.11.5, cover ring gear bearing seat; 3.11.6, blind hole bearing seat; 3.11.7 , through-hole bearing seat; 3.12, through-cover seal; 3.13, spacer set; 3.14, jackscrew assembly; 3.14.1, jackscrew; 3.14.2, locking nut; 3.14.3, sealing gasket; 4. coupling; 5. transmission; 6. flywheel; 7. generator; 8. fixing bracket; 8.1, box frame connecting hole; 8.2, floating bracket connecting hole; 8.3, transmission fixing hole; 8.4, generator mounting hole; 9. parallel gear; 10. intermediate shaft. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0024] For easier understanding, see Figure 1 、 Figure 2 as well as Figure 16This embodiment provides a parallel dual-rocker arm, four-buoy wave energy power generation device and its installation method. The device comprises two conversion modules and a variable-speed power generation module. The conversion module comprises two floats 1, two transmission boxes 3, two dual-rocker arms 2, and two parallel gears 9, each connected to the transmission box 3 and externally meshing with each other. One end of the dual-rocker arm 2 is connected to the float 1, and the other end is connected to the transmission box 3. The variable-speed power generation module comprises a coupling 4, a transmission 5, a flywheel 6, and a generator 7. The transmission box 3, transmission 5, and generator 7 are all fixed to a fixed frame 8. Specifically, the fixed frame 8 has four vertical transmission fixing holes 8.3. Bolts passing through the transmission fixing holes 8.3 secure the transmission 5 to the fixed frame 8, and bolts passing through six generator mounting holes 8.4 secure the generator 7 to the fixed frame 8. The fixed frame 8 also has multiple vertical buoyancy frame connection holes 8.2. Through these holes, the fixed frame 8 can be mounted on an offshore buoy or on a dedicated offshore fixed truss. The float 1's own weight is less than the buoyancy generated by its volume, so it floats on the sea surface. When excited by waves, the float 1 absorbs wave energy and follows the waves' ups and downs. Each float 1 is connected to one end of a corresponding double-rocker arm 2, and the other end of the double-rocker arm 2 is connected to a corresponding transmission box 3. A parallel gear 9 is fixedly mounted on each of the four output shafts 3.10, and two parallel gears 9 in a set of conversion modules are externally meshed for transmission. The transmission 5 is a speed-up transmission 5, including a low-speed shaft 5.1 at the input end and a high-speed shaft 5.2 at the output end. The output shaft 3.10 of the transmission box 3 is connected to the low-speed shaft 5.1 of the transmission 5 via a coupling 4. The transmission 5 can increase the speed of the output shaft 3.10 so that the speed of the output shaft 3.10 reaches the speed required for power generation, and is then transmitted to the main shaft of the generator 7 via the high-speed shaft 5.2 of the transmission 5 to achieve power generation. A flywheel 6 is mounted between the transmission 5 and the generator 7. Its center hole is connected to both the high-speed shaft 5.2 of the transmission 5 and the main shaft of the generator 7. The flywheel 6 acts as an energy storage element to balance the rotational speed, further ensuring that the main shaft rotational speed of the generator 7 falls within the permissible range of the speed nonuniformity coefficient, ensuring that the variable-speed power generation module can operate normally throughout the entire wave energy capture process. Each of the four transmission boxes 3 includes an output shaft 3.10 for outputting unidirectional rotational motion. The two output shafts 3.10 in one set of conversion modules rotate in opposite directions, one of which is connected to the low-speed shaft 5.1 of the transmission 5 via a coupling 4. The two output shafts 3.10 in the other set of conversion modules also rotate in opposite directions, one of which is connected to the low-speed shaft 5.1 of the transmission 5 via a coupling 4 and an intermediate shaft 10. The two output shafts 3.10 connected to the low-speed shaft 5.1 of the transmission 5 rotate in the same direction and are coaxial.

[0025] As the float 1 rises and falls with the waves, the double rocker arm 2 performs a bidirectional rotational motion (also called swinging) with the inner gear ring 3.1 of the transmission box 3 as its axis, alternating between forward and reverse rotation (clockwise and counterclockwise). The transmission box 3 converts the bidirectional rotational motion transmitted by the double rocker arm 2 into a unidirectional rotational motion, that is, converting the up and down bidirectional power motion of the double rocker arm 2 into the unidirectional rotational power motion of the output shaft 3.10 of the transmission box 3. Because the four floats 1 are located in different positions, the amplitude, speed, phase angle, etc. of the up and down swings of the corresponding four double rocker arms 2 are inconsistent, resulting in different instantaneous rotational speeds of the four floats 1. Furthermore, because the two transmission boxes 3 in a set of conversion modules are connected in series via an output shaft 3.10 for transmission, the transmission box 3 with greater power in the set of conversion modules will transmit power to the output shaft 3.10. Since the two output shafts 3.10 connected to the transmission 5 in the two conversion modules rotate in the same direction and are coaxial, the output shaft 3.10 with a faster rotation speed in the two conversion modules will transmit power to the output shaft 3.10 with a slower rotation speed through the intermediate shaft 9. That is, among the four conversion boxes 3, the conversion box 3 with the largest power outputs power to the low-speed shaft 5.1 of the transmission 5 through the output shaft 3.10.

[0026] For easier understanding, see Figures 3 to 7 The double rocker arm 2 includes a frame 2.1, a long rocker 2.2, a connecting rod 2.3, a short rocker 2.4, a clamp assembly 2.5, a hinge shaft 2.6, and a locking bolt assembly 2.7. One end of the long rocker 2.2 is fixedly connected to the float 1, and the other end of the long rocker 2.2 is fixedly connected to a hinge shaft 2.6 via a locking bolt assembly 2.7. The other end of the long rocker 2.2 is rotationally connected to the frame 2.1 via the hinge shaft 2.6. The frame 2.1 is fixedly connected to the bottom of the fixed frame 8. The upper and lower ends of the connecting rod 2.3 are fixedly connected to a hinge shaft 2.6 via a locking bolt assembly 2.7. The lower end of the connecting rod 2.3 is rotatably connected to the middle portion of the long rocker arm 2.2 via the hinge shaft 2.6. The upper end of the connecting rod 2.3 is rotatably connected to the left end of the short rocker arm 2.4 via the hinge shaft 2.6. The right end of the short rocker arm 2.4 is connected to a clamp assembly 2.5. The clamp assembly 2.5 fits tightly against the outer cylindrical surface of the inner gear ring 3.1 and is locked in place. The clamp assembly 2.5 secures the right end of the short rocker arm 2.4 to the inner gear ring 3.1. The distance between the upper and lower hinge shafts 2.6 at the connecting rod 2.3 is determined by the distance between the fixing frame 8 and the still sea surface (e.g. Figure 2 The hinge axis 2.6 between the long rocker arm 2.2 and the frame 2.1 is close to the still sea surface, so that the angle between the theoretical rocker arm force line (the line connecting the center of mass of the float and the swing center of the rocker arm directly fixing the float) and the still sea surface approaches zero, ensuring that the efficiency of the float 1 in capturing wave energy under wave excitation is at an optimal state.

[0027] For easier understanding, please refer to Figures 3 to 7The frame 2.1 includes a frame rod 2.1.1, a rib plate 2.1.2, a frame base plate 2.1.3, and a frame bolt assembly 2.1.4. The lower end of the frame rod 2.1.4 is pivotally connected to the right end of the long rocker 2.2, and the upper end of the frame rod 2.1.4 is fixedly connected to the frame base plate 2.1.3. The triangular rib plate 2.1.2 is fixedly connected to both the frame rod 2.1.4 and the frame base plate 2.1.3. The rib plate 2.1.2 makes the connection between the frame rod 2.1.4 and the frame base plate 2.1.3 more stable and secure. The frame base plate 2.1.3 is fixedly connected to the fixing frame 8 via the frame bolt assembly 2.1.4. The hinged shaft 2.6 is fitted with bearings 2.6.5 at the hinge centers of the long rocker 2.2 and the short rocker 2.4. Seal rings 2.6.4 are fixed to each end of the bearing 2.6.5. These seals prevent seawater or moisture from entering the bearing 2.6.5 through the rotating joint gap, thereby preventing corrosion damage to the bearing 2.6.5 and increasing its service life. A bearing sleeve 2.6.3 is mounted on the outer diameter of the bearing 2.6.5. These sleeves are fixedly mounted inside the long rocker 2.2 and short rocker 2.4, respectively. Specifically, the right end of the long rocker 2.2 is pivotally connected to the lower end of the frame rod 2.1.4 via bearing 2.6.5. The middle of the long rocker 2.2 is pivotally connected to the lower end of the connecting rod 2.3 via bearing 2.6.5. The left end of the short rocker 2.4 is pivotally connected to the upper end of the connecting rod 2.3 via bearing 2.6.5. The hinge shaft 2.6 is mounted on the long rocker 2.2 and the short rocker 2.4, respectively, via a bearing cover plate 2.6.1 and corresponding cover plate bolts 2.6.2. The clamp assembly 2.5 comprises a clamp ring 2.5.1, a clamp bolt assembly 2.5.2, and a clamp reinforcement plate 2.5.3. The clamp ring 2.5.1 fits tightly against and is fixedly connected to the outer cylindrical surface of the inner gear ring 3.1. The clamp ring 2.5.1 is fixedly connected to the right end of the short rocker 2.4 via a clamp bolt assembly 2.5.2 and a clamp reinforcement plate 2.5.3.

[0028] For easier understanding, see Figures 8 and 9 and Figures 13 to 15, the transmission case 3 includes a ring gear shaft system, an output shaft system, a reversing shaft system and a support system. The ring gear shaft system includes a bidirectionally rotatable inner ring gear 3.1, a ring gear bearing 3.4, and a ring gear seal 3.5. The output shaft system includes an output shaft 3.10, a one-way clutch gear 3.3, a reversing gear 3.2, a transmission shaft bearing 3.8, a transparent cover seal 3.12, and a spacer set 3.13. The reversing shaft system includes a reversing shaft 3.9, a one-way clutch gear 3.3, a reversing gear 3.2, a transmission shaft bearing 3.8, and a spacer set 3.13. The support system includes a blind cover end plate 3.6, a transparent cover end plate 3.11, a top screw assembly 3.14, and a stud bolt assembly 3.7. The blind cover end plate 3.6 includes a blind cover ring gear bearing seat 3.6.4 and two blind cover bearing seats 3.6.5 located inside the blind cover ring gear bearing seat 3.6.4. The blind cover stud bolt hole 3.6.3 is located outside the diameter of the blind cover gear ring bearing seat 3.6.4, the blind cover top screw hole 3.6.1 is located on the outside of the blind cover end plate 3.6 corresponding to the blind cover bearing seat 3.6.5, and the blind cover foot hole 3.6.2 is located at the bottom of the blind cover end plate 3.6. The transparent cover end plate 3.11 includes a transparent cover gear ring bearing seat 3.11.5, a blind hole bearing seat 3.11.6 and a through hole bearing seat 3.11.7 located inside the transparent cover gear ring bearing seat 3.11.5, an output shaft hole 3.11.4, a transparent cover stud bolt hole 3.11.3 is located outside the diameter of the transparent cover gear ring bearing seat 3.11.5, the transparent cover top screw hole 3.11.1 is located on the outside of the transparent cover end plate 3.11 corresponding to the blind hole bearing seat 3.11.6, and a transparent cover foot hole 3.11.2 is located at the bottom of the transparent cover end plate 3.11.

[0029] Specifically, the transmission case 3 includes a transparent cover end plate 3.11, a sealed cover end plate 3.6, and a cylindrical inner ring gear 3.1. The transparent cover end plate 3.11 and the sealed cover end plate 3.6 are respectively located on the left and right sides of the inner ring gear 3.1. The inner ring gear 3.1 and the transparent cover end plate 3.11 and the sealed cover end plate 3.6 connected to the inner ring gear 3.1 on both sides are enclosed together to form a box-like closed space through the ring gear bearing 3.4 and the ring gear seal 3.5 at both ends. The lower parts of the transparent cover end plate 3.11 and the blind cover end plate 3.6 are respectively provided with transparent cover foot holes 3.11.2 and blind cover foot holes 3.6.2. The frame bolt group 2.1.4 respectively penetrates the transparent cover foot holes 3.11.2, the box frame connecting holes 8.1 and the frame bottom plate 2.1.3, the blind cover foot holes 3.6.2, the box frame connecting holes 8.1 and the frame bottom plate 2.1.3 from top to bottom, thereby achieving relative fixation between the transparent cover end plate 3.11 and the fixing frame 8 and the frame 2.1, and the blind cover end plate 3.6 and the fixing frame 8 and the frame 2.1. The cover end plate 3.11 and the cover end plate 3.6 are provided with corresponding cover stud holes 3.11.3 and cover stud holes 3.6.3. Four sets of stud assemblies 3.7 are inserted through the outer side of the inner ring gear 3.1, penetrating the cover stud holes 3.11.3 and cover stud holes 3.6.3, respectively, on the cover end plate 3.11 and the cover end plate 3.6, respectively, to secure the cover end plate 3.11 and the cover end plate 3.6 relative to each other. One end of the inner ring gear 3.1 is rotationally connected to the cover end plate 3.11 via a ring gear bearing 3.4, while the other end of the inner ring gear 3.1 is rotationally connected to the cover end plate 3.6 via the ring gear bearing 3.4. A gear ring seal 3.5 is installed at the connection between the inner ring gear 3.1 and the gear ring bearing 3.4. This seal prevents seawater or moisture from entering the transmission case 3 through the gap between the inner ring gear 3.1 and the transparent cover end plate 3.11 or the blind cover end plate 3.6. This prevents seawater or moisture from corroding the mechanical transmission components within the transmission case 3, thereby increasing their service life. One end of the output shaft 3.10 is rotationally connected to the transparent cover end plate 3.11 via a transmission shaft bearing 3.8. The output shaft then extends through an output shaft hole 3.11.4 in the transparent cover end plate 3.11 and connects to the coupling 4. The other end of the output shaft 3.10 is rotationally connected to the blind cover end plate 3.6 via the transmission shaft bearing 3.8. The reversing shaft 3.9 is rotationally connected to the transparent cover end plate 3.11 and the blind cover end plate 3.6, respectively, via the transmission shaft bearing 3.8. On one side of the cover end plate 3.11, a cover seal 3.12 is installed at the connection between the output shaft 3.10 and the transmission shaft bearing 3.8. This seal prevents seawater from entering and causing corrosion. Furthermore, a lubrication system can be installed in the transmission case, depending on the temperature of the sea area where the wave energy generator is located. Grease or oil lubrication can be used to improve mechanical transmission efficiency. Two identical reversing gears 3.2 are also installed within the internal gear ring 3.1. These reversing gears 3.2 are externally meshed and fixedly mounted on the output shaft 3.10 and the reversing shaft 3.9, respectively.Two axially positioned spacer sleeves 3.13 are fixedly mounted on the output shaft 3.10 and the reversing shaft 3.9, respectively. The two spacer sleeves 3.13 are located between the one-way clutch gear 3.3 and the transmission shaft bearing 3.8, and between the reversing gear 3.2 and the transmission shaft bearing 3.8, respectively, to provide axial positioning for the parts.

[0030] The installation method of the two transmission boxes 3 in a set of conversion modules is as follows: Step 1: For the transmission box 3 connected to the coupling 4, the driving direction of the one-way clutch gear 3.3 connected to the output shaft 3.10 is defined as the forward rotation direction, and it is determined that only the forward rotation of the one-way clutch gear 3.3 can drive the output shaft 3.10 to rotate forward, otherwise it will idle and slip; the driving direction of the one-way clutch gear 3.3 connected to the reversing shaft 3.9 is set to the reverse rotation direction, and it is determined that only the reverse rotation of the one-way clutch gear 3.3 can drive the reversing shaft 3.9 to rotate in the reverse direction, otherwise it will idle and slip. Step 2: For the other transmission case 3 that is not connected to the coupling 4, set the drive direction of the one-way clutch gear 3.3 connected to the output shaft 3.10 to the reverse rotation direction, ensuring that only the reverse rotation of the one-way clutch gear 3.3 can drive the output shaft 3.10 to rotate in the reverse direction, otherwise it will idle and slip; set the drive direction of the one-way clutch gear 3.3 connected to the reversing shaft 3.9 to the forward rotation direction, ensuring that only the forward rotation of the one-way clutch gear 3.3 can drive the reversing shaft 3.9 to rotate in the forward direction, otherwise it will idle and slip. Step 3: Complete the installation of the four transmission cases 3 according to the principle that the two one-way clutch gears 3.3 in the same transmission case 3 have opposite drive directions, the output shafts 3.10 of the two adjacent parallel transmission cases 3 have opposite drive directions, and the output shafts 3.10 of the two transmission cases 3 connected to the low-speed shaft of the transmission 5 have the same drive direction.

[0031] In this embodiment, the four floats 1 are each excited by the waves, absorbing wave energy and vibrating up and down. When the waves rise, buoyancy lifts the floats 1 to a certain height, giving them potential energy. Simultaneously, the floats 1 drive the double-arm rocker 2, causing it to swing upward and generate work. When the waves recede, the floats 1 descend due to their own gravity, releasing potential energy while simultaneously driving the double-arm rocker 2 downward and generating work through gravity. Two one-way clutch gears 3.3 within the transmission case 3 convert the bidirectional swinging rotation of the double-arm rocker 2 into unidirectional rotation of the output shaft 3.10, which has both one-way transmission and one-way overrunning capabilities. Thus, the up and down motion of the four floats 1 is transformed into the superimposed rotational motion of the four one-way output shafts 3.10 of the transmission case 3. This rotational power is then transmitted to the generator 7 via the transmission 5 and flywheel 6, completing the conversion of wave energy into electrical energy.

[0032] In this embodiment, the four floats 1 are spaced apart. The instantaneous motion amplitude, phase angle, and speed of each float 1 are different. Each float 1 also absorbs and releases wave kinetic energy and potential energy at different instants. The float 1 with greater energy bears a greater load (primarily the electromagnetic drag torque of the generator 7), resulting in faster energy consumption and a faster decrease in motion speed. The float 1 with less instantaneous kinetic energy, due to the smaller force applied, increases in speed, potentially exceeding the float 1 with greater energy at the previous moment. The energy of the four floats 1 is constantly alternating and outputting in a superimposed manner. The generator 7 is always primarily driven by the float 1 with the greatest instantaneous energy, maximizing the stability of the mechanical energy output to the generator 7 and improving the efficiency of converting mechanical energy into electrical energy. Because the flywheel 6 continuously stores and releases energy, the speed fluctuations of the rotational power input to the generator 7 are substantially eliminated, achieving fluctuation balance and enabling normal power generation.

[0033] In theory, the more floats 1 involved in the power superposition and alternating drive, the more stable the generator 7's rotational speed and the better the wave energy absorption and conversion. However, the choice of wave energy generation device consisting of a single float 1, two floats 1, four floats 1, or more floats 1 should be determined based on actual conditions. This embodiment, in which four floats 1 drive a set of variable-speed power generation modules, is structurally advanced and practical. This has been verified in actual sea trials and demonstrates a high cost-effectiveness, facilitating further unitization and arraying.

[0034] For easier understanding, see Figures 10 to 12 Annular transparent cover gear ring bearing seats 3.11.5 and 3.6.4 are protruded horizontally from the transparent cover end plate 3.11 and the blind cover end plate 3.6, respectively. The transparent cover gear ring bearing seat 3.11.5 on the transparent cover end plate 3.11 and the blind cover gear ring bearing seat 3.6.4 on the blind cover end plate 3.6 are coaxial and have the same outer diameter. Gear ring bearings 3.4 are sleeved and connected to the outer walls of the transparent cover gear ring bearing seats 3.11.5 and the blind cover gear ring bearing seats 3.6.4, respectively. The inner wall ends of the inner ring gear 3.1 are rotatably connected to the transparent cover gear ring bearing seats 3.11.5 and the blind cover gear ring bearing seats 3.6.4, respectively, via the gear ring bearings 3.4. That is, the inner wall ends of the inner ring gear 3.1 are rotatably connected to the transparent cover end plate 3.11 and the blind cover end plate 3.6, respectively, via the gear ring bearings 3.4.

[0035] For easier understanding, see Figures 10 to 12An annular blind hole bearing seat 3.11.6 and an annular through hole bearing seat 3.11.7 are horizontally protruded side by side on the transparent cover end plate 3.11. The output shaft hole 3.11.4 on the transparent cover end plate 3.11 is located in the center of the through hole bearing seat 3.11.7. Both the blind hole bearing seat 3.11.6 and the through hole bearing seat 3.11.7 are located in the central annular area of the transparent cover ring gear bearing seat 3.11.5. Two annular blind cover bearing seats 3.6.5 are horizontally protruded side by side on the blind cover end plate 3.6. Both blind cover bearing seats 3.6.5 are located in the central annular area of the blind cover ring gear bearing seat 3.6.4. The blind hole bearing seat 3.11.6 and the through hole bearing seat 3.11.7 are each coaxial with a blind cover bearing seat 3.6.5. The inner diameters of the blind hole bearing seat 3.11.6, the through hole bearing seat 3.11.7, and the blind cover bearing seat 3.6.5 are identical. Drive shaft bearings 3.8 are embedded and connected to the inner sides of the blind hole bearing seat 3.11.6, the through hole bearing seat 3.11.7, and the two blind cover bearing seats 3.6.5. The two ends of the reversing shaft 3.9 are rotationally connected to the blind hole bearing seat 3.11.6 and the blind cover bearing seat 3.6.5 via the drive shaft bearings 3.8. Specifically, the two ends of the reversing shaft 3.9 are rotationally connected to the through cover end plate 3.11 and the blind cover end plate 3.6 inside the inner ring gear 3.1 via the drive shaft bearings 3.8. One end of the output shaft 3.10 is rotationally connected to another blind cover bearing seat 3.6.5 via a transmission shaft bearing 3.8. The other end of the output shaft 3.10 is rotationally connected to the through-hole bearing seat 3.11.7 via the transmission shaft bearing 3.8, and then extends through the output shaft hole 3.11.4. In other words, the two ends of the output shaft 3.10 are rotationally connected to the through-cover end plate 3.11 and the blind cover end plate 3.6 inside the inner ring gear 3.1 through the transmission shaft bearing 3.8.

[0036] For easier understanding, see Figures 8 to 12 A pair of jackscrew assemblies 3.14 are installed on the transparent cover end plate 3.11, and two pairs of jackscrew assemblies 3.14 are installed on the blind cover end plate 3.6. These jackscrew assemblies 3.14 are used for loading and unloading and maintaining bearings in blind holes. The jackscrew assemblies 3.14 include a jackscrew 3.14.1, a lock nut 3.14.2 that slidably fits over the jackscrew 3.14.1, and a sealing gasket 3.14.3. Corresponding jackscrew holes 3.6.1 for the blind cover and 3.11.1 for the transparent cover end plate 3.11 and the blind cover end plate 3.6 are respectively provided. Specifically, each blind hole of the transparent cover end plate 3.11 and the blind cover end plate 3.6 in the transmission box 3 (the rotation connection between the reversing shaft 3.9 and the blind hole bearing seat 3.11.6, the rotation connection between the reversing shaft 3.9 and the blind cover bearing seat 3.6.5, and the rotation connection between the output shaft 3.10 and the blind cover bearing seat 3.6.5) is equipped with a pair of top screw assemblies 3.14.

[0037] The installation method of the parallel double rocker arm four-float wave energy power generation device is as follows: for a set of conversion modules at one end of the fixed frame: Step 1: complete the assembly of the transmission box 3 according to the process requirements; Step 2: complete the assembly of the two parallel gears 9 according to the process requirements; Step 3: complete the assembly of the double rocker arm 2 according to the process requirements; Step 4: use the frame bolt group 2.1.4 to install and position the two frames 2.1 and the two transmission boxes 3 on the fixed frame 8 according to the process requirements, and use the clamp bolts 2.5.1 to respectively install one end of the two double rocker arms 2 and the corresponding transmission box 3 according to the process requirements; Step 5: install the two floats 1 on the opposite sides according to the process requirements On the corresponding double rocker arm 2; for the set of conversion modules at the other end of the fixed frame: repeat the above steps 1 to 5; Step 6: Install the transmission 5, flywheel 6 and generator 7 on the fixed frame 8 in sequence and according to the process requirements; Step 7: Use the coupling 4 to complete the installation of one of the output shafts 3.10 in one set of conversion modules and the transmission 5 in accordance with the process requirements, and use the intermediate shaft 10 and the coupling 4 to complete the installation of one of the output shafts 3.10 in the other set of conversion modules and the transmission 5 in accordance with the process requirements; Step 8: Use the floating frame connection hole 8.2 on the fixed frame 8 to install and position the wave energy power generation device as a whole on the offshore floating platform or other offshore power generation structure.

[0038] During the manufacture and installation of the transmission case 3, the two one-way clutch gears 3.3 are simultaneously meshed with the internal teeth of the inner ring gear 3.1. The technical requirements for the gear transmission installation should meet the gear pair accuracy grade ISO 8 or above, with a normal side clearance of 0.08 to 0.13 mm. Seawater-resistant grease (such as composite calcium sulfonate-based grease or polyurea-based grease) must be used for lubrication.

[0039] The working principle of the present invention is as follows: for a transmission box 3, when the float 1 moves up and down with the waves, it will drive the long rocker 2.2 to perform bidirectional rotational motion of alternating forward and reverse rotation around the hinge of the frame rod 2.1.1; specifically, when the float 1 rises, the long rocker 2.2 rotates forward; when the float 1 sinks, the long rocker 2.2 reverses. Since the middle part of the long rocker arm 2.2 is rotatably connected to the lower end of the connecting rod 2.3, and the upper end of the connecting rod 2.3 is rotatably connected to the left end of the short rocker arm 2.4, and the right end of the short rocker arm 2.4 is tightly fitted and fixedly connected to the outer cylindrical surface of the inner gear ring 3.1 of the corresponding transmission box 3 through the clamp group 2.5, the swing of the long rocker arm 2.2 will drive the short rocker arm 2.4 to swing completely synchronously with the long rocker arm 2.2, and the swing of the short rocker arm 2.4 will drive the inner gear ring 3.1 to perform a bidirectional rotational motion around its own axis, alternating between forward and reverse rotation; specifically, when the long rocker arm 2.2 rotates forward, the short rocker arm 2.4 rotates forward and the inner gear ring 3.1 rotates forward; when the long rocker arm 2.2 rotates reversely, the short rocker arm 2.4 rotates reversely and the inner gear ring 3.1 rotates reversely. Since the two one-way clutch gears 3.3 are meshed with the internal teeth of the inner ring gear 3.1, the bidirectional rotation of the inner ring gear 3.1 drives the one-way clutch gears 3.3 to rotate around their respective axes in a bidirectional rotational motion that alternates between forward and reverse rotation. Specifically, when the inner ring gear 3.1 rotates forward, it drives the two one-way clutch gears 3.3 to rotate forward simultaneously; when the inner ring gear 3.1 rotates reversely, it drives the two one-way clutch gears 3.3 to rotate reversely simultaneously. When the one-way clutch gear 3.3 connected to the output shaft 3.10 rotates forward, it drives the output shaft 3.10 to rotate forward. At the same time, although the one-way clutch gear 3 connected to the reversing shaft 9 rotates forward, it is in slip control at this time because the driving direction is opposite. Since the output shaft 3.10 passes through the coupling 4, the transmission 5, the flywheel 6 on the outside of the inner gear ring 3.1 in sequence and is connected to the generator 7 to generate electricity, the forward rotation power of the one-way clutch gear 3.3 connected to the output shaft 3.10 is transmitted to the output shaft 3.10, driving the output shaft 3.10 to rotate forward to generate electricity, thereby completing the process of converting the mechanical energy generated by the float 1 during the upward stroke into electrical energy.When the one-way clutch gear 3.3 connected to the reversing shaft 3.9 rotates in the reverse direction, it will drive the reversing shaft 3.9 to rotate in the reverse direction. Since a reversing gear 3.2 is fixedly mounted on the outer side of the output shaft 3.10 and the reversing shaft 3.9, the reverse rotation of the reversing shaft 3.9 will drive the reversing gear 3.2 connected to the reversing shaft 3.9 to rotate in the reverse direction. Since the two reversing gears 3.2 are externally meshed, the reverse rotation of the reversing gear 3.2 connected to the reversing shaft 3.9 will drive the reversing gear 3.2 connected to the output shaft 3.10 to rotate forward. The connected reversing gear 3.2 is fixedly sleeved on the outside of the output shaft 3.10. Therefore, the forward rotation of the reversing gear 3.2 connected to the output shaft 3.10 will drive the output shaft 3.10 to rotate forward. Since the output shaft 3.10 passes through the coupling 4, the transmission 5, the flywheel 6 in sequence outside the inner gear ring 3.1 and is connected to the generator 7 to generate electricity, the reverse power of the one-way clutch gear 3.3 connected to the reversing shaft 3.9 is transmitted to the output shaft 3.10, driving the output shaft 3.10 to rotate forward to generate electricity, thereby completing the process of converting the mechanical energy generated by the float 1 during the downward stroke into electrical energy.

[0040] For a set of conversion modules (two parallel transmission boxes 3), when the power of the transmission box 3 on one side of the coupling 4 is larger and its output speed exceeds the driving speed of the one-way clutch gear 3.3 in the transmission box 3 on the other side, the speed of the output shaft 3.10 will unimpededly surpass the driving speed of the one-way clutch gear 3.3 in the transmission box 3 on the other side, and the power will eventually be transmitted to the generator 7; when the power of the transmission box 3 on the other side is larger and its output speed exceeds the driving speed of the one-way clutch gear 3.3 in the transmission box 3 on the side of the coupling 4, the speed of the output shaft 3.10 will unimpededly surpass the driving speed of the one-way clutch gear 3.3 in the transmission box 3 on the side of the coupling 4, and the power will eventually be transmitted to the generator 7, and finally the mechanical energy generated by the unidirectional rotational motion will be converted into electrical energy through the generator 7, that is, the whole process of converting wave energy into electrical energy is completed.

[0041] For the two sets of conversion modules (a total of four transmission boxes 3) located at both ends of the fixed frame 8 on both sides of the transmission 5, when the output shaft 3.10 of the conversion module at one end has greater power and faster speed, its output speed exceeds the driving speed of the one-way clutch gear 3.3 in the transmission box 3 of the conversion module at the other end, the speed of the output shaft 3.10 will unimpededly surpass the driving speed of the one-way clutch gear 3.3 in the transmission box 3 of the conversion module at the other end, and the power will eventually be transmitted to the generator 7. Finally, the mechanical energy generated by the unidirectional rotational motion is converted into electrical energy through the generator 7, completing the entire process of converting wave energy into electrical energy.

[0042] Although the present invention has been described using the above preferred embodiments, they are not intended to limit the scope of protection of the present invention. Any person skilled in the art who makes various changes and modifications to the above embodiments without departing from the spirit and scope of the present invention still fall within the scope of protection of the present invention.

Claims

1. A parallel double rocker rocker arm four float wave energy power generation device, characterized in that: It includes two sets of conversion modules and one set of variable speed power generation modules, and all modules are fixedly arranged on a fixed frame (8); The conversion module comprises two floats (1), two transmission boxes (3), two double rocker arms (2), and two parallel gears (9) respectively fixed to the extended portions of the output shaft (3.10) of the transmission box (3) and externally meshed with each other. One end of the double rocker arm (2) is connected to the float (1), and the other end is connected to the transmission box (3). The variable speed power generation module comprises a coupling (4), an intermediate shaft (10), a transmission (5), a flywheel (6) and a generator (7); The conversion module is connected to the low-speed shaft (5.1) of the transmission (5) via a coupling (4); the other conversion module is connected to the low-speed shaft (5.1) of the transmission (5) via an intermediate shaft (10) and couplings (4) at both ends of the intermediate shaft (10); the high-speed shaft (5.2) of the transmission (5) is connected to the generator (7); and a flywheel (6) is mounted on the high-speed shaft (5.2); The transmission box (3) includes a gear ring shaft system, an output shaft system, a reversing shaft system and a support system; The gear ring shaft system includes an inner gear ring (3.1) capable of bidirectional rotation and a gear ring bearing (3.4); The output shaft system includes an output shaft (3.10), a one-way clutch gear (3.3), a reversing gear (3.2), and a transmission shaft bearing (3.8); The reversing shaft system includes a reversing shaft (3.9), a one-way clutch gear (3.3), a reversing gear (3.2), and a transmission shaft bearing (3.8); The support system of the transmission box (3) includes a transparent cover end plate (3.11) and a blind cover end plate (3.6). The ring gear shaft system, the output shaft system, and the reversing shaft system are clamped and installed between the transparent cover end plate (3.11) and the blind cover end plate (3.6). The one-way clutch gears (3.3) of the output shaft system and the reversing shaft system inside the transmission box (3) are mutually meshed with the internal teeth of the internal ring gear (3.1), and the reversing gears (3.2) on the output shaft system and the reversing shaft system are mutually externally meshed.

2. The parallel double rocker rocker arm four-float wave energy power generation device according to claim 1, characterized in that: The gear ring shaft system includes a gear ring seal (3.5); The output shaft system includes a cover seal (3.12) and a spacer assembly (3.13); The reversing shaft system includes a spacer set (3.13); The support system includes a jackscrew assembly (3.14) and a stud bolt assembly (3.7); The blind cover end plate (3.6) includes: a blind cover gear ring bearing seat (3.6.4), two blind cover bearing seats (3.6.5) located inside the blind cover gear ring bearing seat (3.6.4), blind cover stud bolt holes (3.6.3) located outside the diameter of the blind cover gear ring bearing seat (3.6.4), blind cover top screw holes (3.6.1) on the outside of the blind cover end plate (3.6) corresponding to the blind cover bearing seats (3.6.5), and foot holes (3.6.2) at the foot of the blind cover end plate (3.6); The transparent cover end plate (3.11) includes: a transparent cover gear ring bearing seat (3.11.5), a blind hole bearing seat (3.11.6) and a through hole bearing seat (3.11.7) located inside the transparent cover gear ring bearing seat (3.11.5), an output shaft hole (3.11.4), a transparent cover stud bolt hole (3.11.3) located outside the diameter of the transparent cover gear ring bearing seat (3.11.5), a transparent cover top screw hole (3.11.1) at the outer side of the transparent cover end plate (3.11) corresponding to the blind hole bearing seat (3.11.6), and a foot hole (3.11.2) at the foot of the transparent cover end plate (3.11); The transparent gear ring bearing seat (3.11.5) and the blind cover gear ring bearing seat (3.6.4) supporting the gear ring shaft system, the blind hole bearing seat (3.11.6) and the blind cover bearing seat (3.6.5) supporting the reversing shaft system, the through hole bearing seat (3.11.7) and the blind cover bearing seat (3.6.5) supporting the output shaft system, and the stud bolt holes of the two end plates are all coaxial with each other.

3. The parallel double rocker rocker arm four-float wave energy power generation device according to claim 2, characterized in that: The top screw assembly (3.14) includes a top screw (3.14.1), a locking nut (3.14.2) and a sealing gasket (3.14.3). The top screw assembly (3.14) is installed on the corresponding through cover top screw screw hole (3.11.1) and the blind cover top screw screw hole (3.6.1) of the through cover end plate (3.11) and the blind cover end plate (3.6).

4. The parallel double rocker arm four-float wave energy power generation device according to claim 3 is characterized in that: The double rocker arm (2) comprises a frame (2.1), a long rocker (2.2), a connecting rod (2.3), a short rocker (2.4), a clamp group (2.5), a hinge shaft (2.6) and a locking bolt group (2.7); one end of the long rocker (2.2) is fixedly connected to the float (1); the other end of the long rocker (2.2) is rotatably connected to the frame (2.1) via the hinge shaft (2.6); the frame (2.1) is fixedly connected to the bottom of the fixed frame (8); the lower end of the connecting rod (2.3) is rotatably connected to the middle part of the long rocker (2.2) via the hinge shaft (2.6); the upper end of the connecting rod (2.3) is rotatably connected to one end of the short rocker (2.4) via the hinge shaft (2.6); and the other end of the short rocker (2.4) is fixedly connected to the inner gear ring (3.1) via the clamp group (2.5); The clamp assembly (2.5) comprises a clamp ring (2.5.1) that fits tightly and is fixedly connected to the inner gear ring (3.1); the clamp ring (2.5.1) is fixedly connected to one end of the short rocker (2.4) via a clamp bolt assembly (2.5.2) and a clamp reinforcement plate (2.5.3); The articulated shaft (2.6) is fixedly connected to the upper and lower ends of the connecting rod (2.3) and the lower end of the frame rod (2.1.1) through a locking bolt group (2.7). The articulated shaft (2.6) is provided with a bearing (2.6.5) at the articulated center with the long rocker (2.2) and the short rocker (2.4). The two end surfaces of the bearing (2.6.5) are respectively provided with a sealing ring (2.6.4). The outer diameter of the bearing (2.6.5) is fixedly installed with a bearing sleeve (2.6.3). The bearing sleeve (2.6.3) is respectively fixedly arranged inside the long rocker (2.2) and the short rocker (2.4). The articulated shaft (2.6) is respectively installed on the long rocker (2.2) and the short rocker (2.4) through a bearing cover plate (2.6.1) and a corresponding cover plate bolt (2.6.2).

5. The parallel double rocker rocker arm four-float wave energy power generation device according to claim 4, characterized in that: The frame (2.1) comprises a frame rod (2.1.1), a rib plate (2.1.2), a frame bottom plate (2.1.3) and a frame bolt group (2.1.4); the lower end of the frame rod (2.1.1) is rotatably connected to the long rocker (2.2); the upper end of the frame rod (2.1.1) is fixedly connected to the frame bottom plate (2.1.3) via the rib plate (2.1.2); and the frame bottom plate (2.1.3) is fixedly connected to the fixing frame (8) via the frame bolt group (2.1.4).

6. The parallel double rocker arm four-float wave energy power generation device according to claim 2, characterized in that: The fixing frame (8) is provided with a box frame connection hole (8.1), a floating frame connection hole (8.2), a transmission fixing hole (8.3) and a generator mounting hole (8.4); the box frame connection hole (8.1) corresponds to a transparent cover foot hole (3.11.2) and a blind cover foot hole (3.6.2) respectively provided on the transparent cover end plate (3.11) and the blind cover end plate (3.6).

7. A method for installing the parallel double rocker arm four-float wave energy power generation device as claimed in claim 2, characterized in that: The installation method of two transmission boxes (3) in a set of conversion modules is as follows: The first step: for a transmission box (3) connected to a coupling (4), the driving direction of a one-way clutch gear (3.3) connected to an output shaft (3.10) is defined as a forward rotation direction, ensuring that only when the one-way clutch gear (3.3) rotates forward can the output shaft (3.10) be driven forward, otherwise the output shaft (3.10) will rotate idly and slip; the driving direction of a one-way clutch gear (3.3) connected to a reversing shaft (3.9) is set to a reverse rotation direction, ensuring that only when the one-way clutch gear (3.3) rotates reversely can the reversing shaft (3.9) be driven reversely, otherwise the output shaft (3.10) will rotate idly and slip; Step 2: For another transmission box (3), set the driving direction of the one-way clutch gear (3.3) connected to the output shaft (3.10) to the reverse rotation direction, ensuring that only when the one-way clutch gear (3.3) rotates in the reverse direction can the output shaft (3.10) be driven to rotate in the reverse direction, otherwise the output shaft (3.10) will be driven to rotate idly and slip; set the driving direction of the one-way clutch gear (3.3) connected to the reversing shaft (3.9) to the forward rotation direction, ensuring that only when the one-way clutch gear (3.3) rotates in the forward direction can the reversing shaft (3.9) be driven to rotate in the forward direction, otherwise the output shaft (3.10) will be driven to rotate idly and slip; Step 3: According to the principle that the driving directions of the two one-way clutch gears (3.3) in the same transmission box (3) are opposite, the driving directions of the output shafts (3.10) of the two adjacent parallel transmission boxes (3) are opposite, and the driving directions of the output shafts (3.10) of the two transmission boxes (3) connected to the low-speed shaft of the transmission (5) are the same, the installation of the four transmission boxes (3) is completed.

8. The installation method according to claim 7, characterized in that: The installation method of the parallel double rocker arm four-float wave energy power generation device is as follows: For one set of conversion modules at one end of the mounting bracket (8): The first step is to complete the assembly of two transmission boxes (3) according to the process requirements; Step 2: Complete the assembly of the two parallel gears (9) according to the process requirements; Step 3: Complete the assembly of the two double rocker arms (2) according to the process requirements; Step 4: Use the frame bolt assembly (2.1.4) to install and position the two frames (2.1) and the two transmission boxes (3) on the fixed frame (8) according to the process requirements, and use the clamp assembly (2.5) to respectively install one end of the two double rocker arms (2) and the corresponding transmission boxes (3) according to the process requirements; Step 5: Install the two floats (1) on the corresponding double rocker arms (2) according to the process requirements; For one set of conversion modules at the other end of the mounting bracket (8): Repeat steps 1 to 5 above; Step 6: Install the transmission (5), flywheel (6) and generator (7) on the fixed frame (8) according to the sequence and process requirements; Step 7: Install one of the output shafts (3.10) in one set of conversion modules and the transmission (5) through the coupling (4) in accordance with the process requirements, and install one of the output shafts (3.10) in another set of conversion modules and the transmission (5) through the intermediate shaft (10) and the coupling (4) in accordance with the process requirements; Step 8: The wave energy power generation device is integrally mounted and positioned on an offshore floating platform or other offshore power generation structure through the floating frame connection hole (8.2) on the fixed frame (8).

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