A twin-body wave energy power generation device with adjustable pitch based on rotating motor

Abstract

The invention discloses a pitch-adjustable catamaran wave energy power generation device based on a rotating motor, comprising a support frame, a first float, a second float, a generator and a positioning member; the stator of the generator is arranged on one end of the support frame in the length direction, and the rotor of the generator is connected to the first float so that the first float and the support frame can rotate relative to each other; the second float is movably mounted on the support frame, and the movement trajectory of the second float is consistent with the length direction of the support frame; the positioning member is detachably connected to the second float and the support frame, and the positioning member is used to fix the installation position of the second float; therefore, the pitch adjustment of the power generation device can be achieved by moving the second float, thereby solving the problem that it is difficult to achieve pitch adjustment in the existing power generation device.

Description

Technical Field

[0001] The invention relates to the technical field of wave energy, and in particular to a twin-body wave energy power generation device with adjustable pitch based on a rotating motor. Background Art

[0002] As the world energy crisis intensifies, people are turning their attention to the ocean. The ocean contains huge energy, of which wave energy is one of the main forms of ocean energy. It has the advantages of huge reserves, cleanliness, and renewableness, and is considered a new direction for solving energy problems. my country has considerable wave energy resources and a high energy flow density in offshore waters. It has a very broad development prospect and is of great significance to the transformation of energy structure.

[0003] For existing wave energy power generation devices, a variety of power generation methods are used, including linear electromagnetic, pneumatic, piezoelectric, electroactive polymer, hydraulic, etc., and the floating movement methods also include point absorption, oscillation swing, raft, etc. Among them, multi-body wave energy power generation devices based on permanent magnet motors include wave energy power generation devices based on bilateral built-in V-type permanent magnet linear motors, etc. As for control methods, there are currently controls for system damping, stiffness and other parameters that change with incident waves, as well as optimization of the structural dimensions of power generation devices.

[0004] However, most of the existing catamaran or multi-body wave energy power generation devices, including those used in laboratories and actual sea conditions, are designed and manufactured for specific sea conditions. When the application scenario changes, the pitch adjustment is very difficult or impossible to adjust, so it is impossible to ensure that the device always achieves a high efficiency when the seasons and working sea areas change. Summary of the invention

[0005] The object of the present invention is to provide a pitch-adjustable catamaran wave energy power generation device based on a rotating motor, so as to solve the problem that the existing power generation devices (especially the water tank test model) are difficult to achieve pitch adjustment.

[0006] In order to solve the above technical problems, the present invention provides a pitch-adjustable catamaran wave energy power generation device based on a rotating motor, comprising a support frame, a first float, a second float, a generator and a positioning member; the stator of the generator is arranged at one end of the support frame in the length direction, and the rotor of the generator is connected to the first float so that the first float and the support frame can rotate relative to each other; the second float is movably mounted on the support frame, and the movement trajectory of the second float is consistent with the length direction of the support frame; the positioning member is detachably connected to the second float and the support frame, and the positioning member is used to fix the installation position of the second float.

[0007] In one embodiment, the support frame includes four long sides arranged in parallel, the four long sides are surrounded by the second float, the four long sides are provided with a plurality of positioning holes of the same number, the positioning holes pass through the long sides, and the positioning holes are opposite to the second float; the second float is provided with a plurality of alignment holes, the alignment holes pass through two opposite surfaces of the second float, and the movement of the second float is used to change the alignment of the plurality of alignment holes with different plurality of positioning holes; the positioning member includes a positioning shaft and a nut, the plurality of positioning shafts pass through the aligned plurality of positioning holes and the plurality of alignment holes, and the nut is threadedly connected to the ends of the positioning shaft exposed outside the two long sides.

[0008] In one of the embodiments, the alignment holes are provided at the four end corners of the side surface of the second float, and the plurality of positioning holes on the four long sides are arranged to match the plurality of alignment holes.

[0009] In one embodiment, the positioning holes are arranged at equal intervals along the length direction of the long side.

[0010] In one of the embodiments, slide grooves are provided at the four end corners of the second float, and the slide grooves penetrate the two opposite surfaces of the second float; the support frame includes four long sides arranged in parallel, and the four long sides respectively pass through the slide grooves at the four end corners of the second float, so that the second float can move along the long sides.

[0011] In one of the embodiments, the two relatively arranged long sides are provided with a plurality of positioning holes of the same number, the positioning holes pass through the long sides, and the positioning holes are opposite to the second float; the second float is provided with an alignment hole, the alignment hole passes through two opposite surfaces of the second float, and the movement of the second float is used to change the alignment of the alignment hole with different plurality of positioning holes; the positioning member includes a positioning shaft and a nut, the positioning shaft passes through the aligned positioning holes and the alignment holes, and the nut is threadedly connected to the ends of the positioning shaft exposed outside the two long sides.

[0012] In one embodiment, the positioning holes are arranged at equal intervals along the length direction of the long side.

[0013] In one embodiment, the support frame is surrounded by a plurality of insertion cavities, the insertion direction of the insertion cavities is perpendicular to the length direction of the support frame, and the second float is inserted into the insertion cavity in a pluggable manner.

[0014] In one embodiment, the support frame includes four long sides arranged in parallel, the four long sides are surrounded by the second float, and two oppositely arranged long sides are provided with a plurality of positioning holes of the same number, the plurality of positioning holes are respectively placed within the range covered by the plurality of insertion cavities, the positioning holes pass through the long sides, and the positioning holes are opposite to the second float; the second float is provided with an alignment hole, the alignment hole passes through two opposite surfaces of the second float, and the movement of the second float is used to change the alignment of the alignment hole with different plurality of positioning holes; the positioning member includes a positioning shaft and a nut, the positioning shaft passes through the aligned positioning hole and the alignment hole, and the nut is threadedly connected to the end of the positioning shaft exposed outside the two long sides.

[0015] In one embodiment, the shape of the insertion cavity matches the shape of the second float.

[0016] The beneficial effects of the present invention are as follows:

[0017] Since the second float is movably mounted on the support frame, the positioning member is detachably connected to the second float and the support frame, and the positioning member is used to fix the installation position of the second float, the pitch adjustment of the power generation device can be achieved by moving the second float, thereby solving the problem that it is difficult to achieve pitch adjustment in existing power generation devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the first embodiment of the catamaran wave energy power generation device of the present invention;

[0020] Figure 2 yes Figure 1 Schematic diagram of the rotation state;

[0021] Figure 3 yes Figure 1 Schematic diagram of disassembly status;

[0022] Figure 4 yes Figure 1 Schematic diagram of the supporting frame structure;

[0023] Figure 5 yes Figure 1 A schematic diagram of the second float structure;

[0024] Figure 6yes Figure 1 Schematic diagram of pitch adjustment state;

[0025] Figure 7 It is a structural schematic diagram of a second embodiment of a catamaran wave energy power generation device according to the present invention;

[0026] Figure 8 yes Figure 7 Schematic diagram of pitch adjustment state;

[0027] Fig. 9 yes Figure 7 A schematic diagram of the assembly of the second float and the positioning member;

[0028] Fig.10 It is a structural schematic diagram of the third embodiment of the catamaran wave energy power generation device of the present invention;

[0029] Fig.11 yes Fig.10 Schematic diagram of pitch adjustment state;

[0030] Fig.12 yes Fig.10 Schematic diagram of the supporting frame structure;

[0031] Fig.13 yes Fig.10 Schematic diagram of the assembly of the second float and the positioning piece.

[0032] The reference numerals are as follows:

[0033] 10. Support frame; 11. Long side; 12. Positioning hole; 13. Insertion cavity; 14. Insertion slot; 15. Positioning slot;

[0034] 21. first float; 22. second float; 221. alignment hole; 222. slide groove;

[0035] 30. Generator;

[0036] 40. Positioning piece; 41. Positioning shaft; 42. Nut. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0038] from Figures 1 to 13It can be seen that the present invention provides three embodiments of a catamaran wave energy power generation device. The commonality of the three embodiments is that the catamaran wave energy power generation device includes a support frame 10, a first buoy 21, a second buoy 22, a generator 30 and a positioning member 40; the stator of the generator 30 is arranged at one end of the support frame 10 in the length direction, and the rotor of the generator 30 is connected to the first buoy 21 so that the first buoy 21 and the support frame 10 can rotate relative to each other; the second buoy 22 is movably mounted on the support frame 10, and the moving trajectory of the second buoy 22 is consistent with the length direction of the support frame 10; the positioning member 40 is detachably connected to the second buoy 22 and the support frame 10, and the positioning member 40 is used to fix the installation position of the second buoy 22.

[0039] When in use, the catamaran wave energy power generation device will float in the water, and the incident waves will cause relative rotation between the first buoy 21 and the support frame 10, thereby realizing power generation of the catamaran wave energy power generation device; if pitch adjustment is required, it is only necessary to release the fixing of the second buoy 22 and the support frame 10 by the positioning member 40, and then the pitch adjustment can be achieved by moving the second buoy 22. After the pitch is adjusted to the required requirement, the second buoy 22 and the support frame 10 can be fixed again using the positioning member 40. The whole process is simple to operate, thereby solving the problem that it is difficult to achieve pitch adjustment in existing power generation devices.

[0040] Specifically, the first embodiment of the twin-body wave energy power generation device is as follows: Figures 1 to 6 As shown, at this time, the support frame 10 includes four long sides 11 arranged in parallel, and the four long sides 11 are surrounded by the second float 22. The four long sides 11 are provided with a plurality of positioning holes 12 of the same number, and the positioning holes 12 pass through the long sides 11, and the positioning holes 12 are opposite to the second float 22; the second float 22 is provided with a plurality of alignment holes 221, and the alignment holes 221 pass through the two opposite surfaces of the second float 22, and the movement of the second float 22 is used to change the alignment of the plurality of alignment holes 221 with different plurality of positioning holes 12; the positioning member 40 includes a positioning shaft 41 and a nut 42, and the plurality of positioning shafts 41 pass through the aligned plurality of positioning holes 12 and the plurality of alignment holes 221, and the nut 42 is threadedly connected to the ends of the positioning shaft 41 exposed outside the two long sides 11.

[0041] In this embodiment, four alignment holes 221 are provided on each long side 11, and the four alignment holes 221 are arranged at intervals from the left end to the right end of the long side 11. The four end corners of the side of the second float 22 are provided with alignment holes 221, and the multiple positioning holes 12 on the four long sides 11 are arranged to match the multiple alignment holes 221; for example, Figure 1 , Figure 3 and Figure 5As shown, the second float 22 is placed on the leftmost side of the support frame 10, and the four alignment holes 221 can be aligned with the four positioning holes 12 respectively, so the positioning shaft 41 can pass through the four end corners of the second float 22, and then the second float 22 is positioned by installing the nut 42; when the pitch adjustment is required, Figure 3 and Figure 6 As shown, it is only necessary to remove the nut 42 and the positioning shaft 41 and wait for the second float 22 to move to a desired position and then re-fix it.

[0042] In this embodiment, the positioning holes 12 are arranged at equal intervals along the length direction of the long side 11. This arrangement reduces the space required for the second float 22 to adjust the pitch, so that the second float 22 has more pitch adjustment options within a limited space.

[0043] A second embodiment of the twin-body wave energy power generation device is as follows Figures 7 to 9 As shown, it is basically the same as the first embodiment of the catamaran wave energy power generation device, the difference being that slide grooves 222 are provided at the four end corners of the second float 22, and the slide grooves 222 pass through the two opposite surfaces of the second float 22; the support frame 10 includes four parallel long sides 11, and the four long sides 11 respectively pass through the slide grooves 222 at the four end corners of the second float 22, so that the second float 22 can move along the long sides 11.

[0044] Therefore, even if the fixing of the second buoy 22 and the support frame 10 by the positioning member 40 is released, the second buoy 22 can still remain installed with the support frame 10, thereby enhancing the structural stability of the catamaran wave energy power generation device.

[0045] At this time, in order to fix the second float 22, Figures 7 to 9 As shown, two relatively arranged long sides 11 are provided with a plurality of positioning holes 12 of the same number, the positioning holes 12 pass through the long sides 11, and the positioning holes 12 are opposite to the second float 22; the second float 22 is provided with an alignment hole 221, the alignment hole 221 passes through two opposite surfaces of the second float 22, and the movement of the second float 22 is used to change the alignment of the alignment hole 221 with different plurality of positioning holes 12; the positioning member 40 includes a positioning shaft 41 and a nut 42, the positioning shaft 41 passes through the aligned positioning holes 12 and the alignment holes 221, and the nut 42 is threadedly connected to the ends of the positioning shaft 41 exposed outside the two long sides 11.

[0046] Specifically, four positioning holes 12 are provided on each long side 11, and the four positioning holes 12 are arranged at intervals from the left end to the right end of the long side 11. Four end corners of the side of the second float 22 are provided with alignment holes 221. The multiple positioning holes 12 on the four long sides 11 are arranged to match the multiple alignment holes 221; for example, Figure 7 and Fig. 9As shown, the second float 22 is placed on the leftmost side of the support frame 10, and the four alignment holes 221 can be aligned with the four positioning holes 12 respectively, so the positioning shaft 41 can pass through the four end corners of the second float 22, and then the second float 22 is positioned by installing the nut 42; when the pitch adjustment is required, Figure 8 and Fig. 9 As shown, it is only necessary to remove the nut 42 and the positioning shaft 41 and wait for the second float 22 to move to a desired position and then re-fix it.

[0047] Of course, since the second float 22 already has an assembly positioning structure with the support frame 10 at this time, it is not necessary to set up multiple positioning members 40 for positioning when fixing the position. For example, only one positioning hole 12 is set on the second float 22, and the second float 22 can also be stably positioned by using a positioning shaft 41 and a nut 42 for cooperative installation.

[0048] In this embodiment, the positioning holes 12 are arranged at equal intervals along the length direction of the long side 11. This arrangement reduces the space required for the second float 22 to adjust the pitch, so that the second float 22 has more pitch adjustment options within a limited space.

[0049] A third embodiment of the twin-body wave energy power generation device is as follows Figures 10 to 13 As shown, it is basically the same as the second embodiment of the catamaran wave energy power generation device, the difference is that the support frame 10 is surrounded by a plurality of insertion cavities 13, the insertion direction of the insertion cavity 13 is perpendicular to the length direction of the support frame 10, and the second float 22 is inserted into the insertion cavity 13 in a pluggable manner.

[0050] In this embodiment, there are two insertion cavities 13, and the two insertion cavities 13 are arranged from the left side to the right side of the support frame 10. Fig.10 As shown, the second float 22 is inserted into the leftmost insertion cavity 13. If pitch adjustment is required, Fig.11 As shown, it is only necessary to pull out the second float 22 and then insert the second float 22 into the required insertion cavity 13 .

[0051] like Figures 10 to 12Therefore, insertion grooves 14 are provided on the opposite surfaces of the two outer long sides 11, and the insertion grooves 14 pass through the two sides of the long sides 11. Positioning grooves 15 are provided on the opposite surfaces of the two inner long sides 11. The positioning grooves 15 are recessed into the long sides 11, but do not pass through the long sides 11. By setting the sizes of the insertion grooves 14 and the positioning grooves 15 to match the shape of the second float 22, the insertion grooves 14 and the positioning grooves 15 will be able to define the shape of the insertion cavity 13, so the second float 22 will be able to pass through the insertion grooves 14, and then until the second float 22 is supported in the positioning grooves 15; at this time, it is preferred to set the shape of the insertion cavity 13 to match the shape of the second float 22, so as to ensure that the second float 22 is assembled firmly and stably.

[0052] At this time, in order to fix the second float 22, this embodiment is configured as follows Figures 10 to 13 As shown, the support frame 10 includes four parallel long sides 11, and the four long sides 11 are surrounded by the second float 22. Two oppositely arranged long sides 11 are provided with a plurality of positioning holes 12 of the same number, and the plurality of positioning holes 12 are respectively placed in the range covered by the plurality of insertion cavities 13. The positioning holes 12 pass through the long sides 11, and the positioning holes 12 are opposite to the second float 22; the second float 22 is provided with an alignment hole 221, and the alignment hole 221 passes through two opposite surfaces of the second float 22, and the movement of the second float 22 is used to change the alignment of the alignment hole 221 with different plurality of positioning holes 12; the positioning member 40 includes a positioning shaft 41 and a nut 42, the positioning shaft 41 passes through the aligned positioning holes 12 and the alignment holes 221, and the nut 42 is threadedly connected to the ends of the positioning shaft 41 exposed outside the two long sides 11.

[0053] In the direction shown in the figure, two positioning holes 12 are respectively provided on the two long sides 11 on the outside, the two upper positioning holes 12 are respectively located in the middle and upper parts of the two insertion cavities 13, and the two lower positioning holes 12 are respectively located in the middle and lower parts of the two insertion cavities 13, and the alignment hole 221 runs through the upper and lower surfaces of the second float 22, so when the second float 22 is aligned and installed, it only needs to use a positioning shaft 41 and a nut 42 to cooperate and install to achieve the stable positioning of the second float 22.

[0054] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A twin-body wave energy power generation device with adjustable pitch based on a rotating motor, characterized in that: It includes a support frame, a first float, a second float, a generator and a positioning member; The stator of the generator is arranged at one end of the support frame in the length direction, and the rotor of the generator is connected to the first float so that the first float and the support frame can rotate relative to each other; The second float is movably mounted on the support frame, and a moving track of the second float is consistent with a length direction of the support frame; The positioning member is detachably connected to the second float and the support frame, and the positioning member is used to fix the installation position of the second float; The four end corners of the second float are each provided with a slide groove, and the slide groove runs through two opposite surfaces of the second float; The support frame comprises four long sides arranged in parallel, and the four long sides respectively pass through the slide grooves at the four end corners of the second float, so that the second float can move along the long sides; The support frame is surrounded by a plurality of insertion cavities, the insertion direction of the insertion cavities is perpendicular to the length direction of the support frame, and the second float is inserted into the insertion cavity in a pluggable manner.

2. The catamaran wave energy power generation device according to claim 1, characterized in that: The four long sides surround the second float, and the four long sides are provided with a plurality of positioning holes of the same number, the positioning holes penetrate through the long sides, and the positioning holes are opposite to the second float; The second float is provided with a plurality of alignment holes, the alignment holes penetrate through two opposite surfaces of the second float, and the movement of the second float is used to change the alignment of the plurality of alignment holes with different plurality of positioning holes; The positioning member comprises a positioning shaft and a nut. The plurality of positioning shafts pass through the aligned plurality of positioning holes and the plurality of alignment holes. The nut is threadedly connected to the ends of the positioning shafts exposed outside the two long sides.

3. The catamaran wave energy power generation device according to claim 2, characterized in that: The alignment holes are arranged at the four end corners of the side surface of the second float, and the plurality of positioning holes on the four long sides are arranged to match the plurality of alignment holes.

4. The catamaran wave energy power generation device according to claim 3, characterized in that: The positioning holes are arranged at equal intervals along the length direction of the long side.

5. The catamaran wave energy power generation device according to claim 1, characterized in that: The two long sides arranged opposite to each other are provided with a plurality of positioning holes of the same number, the positioning holes penetrate through the long sides, and the positioning holes are opposite to the second float; The second float is provided with an alignment hole, the alignment hole passes through two opposite surfaces of the second float, and the movement of the second float is used to change the alignment of the alignment hole with different multiple positioning holes; The positioning member comprises a positioning shaft and a nut. The positioning shaft passes through the aligned positioning hole and the alignment hole. The nut is threadedly connected to the end of the positioning shaft exposed outside the two long sides.

6. The catamaran wave energy power generation device according to claim 5, characterized in that: The positioning holes are arranged at equal intervals along the length direction of the long side.

7. The catamaran wave energy power generation device according to claim 1, characterized in that: The four long sides surround the second float, and two oppositely arranged long sides are provided with a plurality of positioning holes of the same number, the plurality of positioning holes are respectively placed within the range covered by the plurality of insertion cavities, the positioning holes penetrate the long sides, and the positioning holes are opposite to the second float; The second float is provided with an alignment hole, the alignment hole passes through two opposite surfaces of the second float, and the movement of the second float is used to change the alignment of the alignment hole with different multiple positioning holes; The positioning member comprises a positioning shaft and a nut. The positioning shaft passes through the aligned positioning hole and the alignment hole. The nut is threadedly connected to the end of the positioning shaft exposed outside the two long sides.

8. The catamaran wave energy power generation device according to claim 7, characterized in that: The outer shape of the insertion cavity matches the outer shape of the second float.

Images