A wind turbine rotor

Abstract

This invention provides a wind turbine rotor, comprising: a hub, a support shaft, blades, and a pull rope; the blades are arranged circumferentially on the sidewall of the hub; the blades are located on any plane parallel to the bottom surface of the cylindrical structure; the support shaft is connected to one end of the hub; a fixing ring is wrapped around the outer sidewall of the end of the hub not connected to the support shaft; the blades and the support shaft are connected by pull ropes; the blades and the fixing ring are connected by pull ropes; any two adjacent blades are connected by pull ropes; at least one U-shaped first pull rope connecting assembly is provided on the sidewall of the blades; at least one U-shaped second pull rope connecting assembly is provided on the sidewall of the support shaft; at least one U-shaped third pull rope connecting assembly is provided on the sidewall of the fixing ring; a first pin and a second pin are respectively provided at both ends of the pull rope, thereby improving the maintenance efficiency of the wind turbine.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wind power generation, in particular to a wind wheel of a wind power generator. BACKGROUND

[0002] The wind power generator is a device for converting wind energy into electric energy. A pull rope locking structure can be installed on the wind blade of the wind power generator to ensure the stability of the wind blade during operation and to withstand the impact of wind in severe weather conditions.

[0003] However, the existing pull rope locking structure of the wind blade generally adopts a screw installation method, which is relatively complex and reduces the installation efficiency. In addition, the pull rope locking structure installed by the screw installation method is not convenient to disassemble after long-term use, which reduces the maintenance efficiency of the wind power generator. Furthermore, the pull rope locking structure fixed by the screw for a long time may have a problem of screw loosening, which not only may endanger the stability of the wind blade, but also reduces the safety during use of the wind blade, and cannot fully meet the user's demand for reliability and safety of the wind power generator. SUMMARY

[0004] The wind wheel of the wind power generator provided by the embodiments of the present application solves the problem that the pull rope of the wind blade is generally installed by a screw, which is not convenient to disassemble and install, and the screw may loosen after long-term use.

[0005] The wind wheel of the wind power generator provided by the embodiments of the present application solves the problem that the pull rope of the wind blade is generally installed by a screw, which is not convenient to disassemble and install, and the screw may loosen after long-term use.

[0006] The side wall of the blade is provided with at least one first pull rope connecting assembly in a U-shaped structure; the side wall of the first pull rope connecting assembly is provided with a first bolt through hole and a first bolt fixing assembly;

[0007] The side wall of the support shaft is provided with at least one second pull rope connecting assembly in a U-shaped structure; the side wall of the second pull rope connecting assembly is provided with a second bolt fixing assembly and a second bolt through hole;

[0008] The side wall of the fixed ring is provided with at least one third pull rope connecting assembly in a U-shaped structure; the side wall of the third pull rope connecting assembly is provided with a third bolt fixing assembly and a third bolt through hole;

[0009] The two ends of the pull rope are respectively provided with a first bolt wrapping assembly and a second bolt wrapping assembly; the first bolt wrapping assembly wraps a first bolt; and the second bolt wrapping assembly wraps a second bolt;

[0010] In the case where the pull rope is used for connecting the blade and the support shaft, the first bolt is penetrated into the first bolt through hole; the first bolt fixing assembly is used for ensuring that the first bolt is penetrated into the first bolt through hole; the second bolt is penetrated into the second bolt through hole; and the second bolt fixing assembly is used for ensuring that the second bolt is penetrated into the second bolt through hole;

[0011] In the case where the pull rope is used for connecting the blade and the support shaft, the first bolt is penetrated into the first bolt through hole; the first bolt fixing assembly is used for ensuring that the first bolt is penetrated into the first bolt through hole; the second bolt is penetrated into the second bolt through hole; and the second bolt fixing assembly is used for ensuring that the second bolt is penetrated into the second bolt through hole;

[0012] In the case where the pull rope is used for connecting the blade and the support shaft, the first bolt is penetrated into the first bolt through hole; the first bolt fixing assembly is used for ensuring that the first bolt is penetrated into the first bolt through hole; the second bolt is penetrated into the second bolt through hole; and the second bolt fixing assembly is used for ensuring that the second bolt is penetrated into the second bolt through hole;

[0013] The side wall of the first bolt through hole is provided with a first recess; the first bolt fixing assembly comprises a first installation assembly and a first fixing assembly; the first installation assembly comprises a cuboid hollow structure and a cuboid sliding block; any bottom surface of the cuboid hollow structure has a rectangular opening, and any side surface of the cuboid hollow structure has a first push block moving hole; any bottom surface of the cuboid sliding block is connected with a preset first spring, and any side surface of the cuboid sliding block is provided with a first push block; the bottom area of the cuboid sliding block is not greater than the area of the rectangular opening; the cuboid sliding block is movably arranged in the interior of the cuboid hollow structure, and the first push block penetrates through the first push block moving hole;

[0014] The first fixed component comprises a cylindrical hollow structure and a cylindrical slider; any bottom surface of the cylindrical hollow structure has a circular opening, and a second dial block moving hole is arranged on the sidewall of the cylindrical hollow structure; any bottom surface of the cylindrical slider is connected with a preset second spring, and a second dial block is arranged on the side surface of the cylindrical slider; the bottom area of the cylindrical slider is not greater than the area of the circular opening; the cylindrical slider is movably arranged in the interior of the cylindrical hollow structure, and the second dial block passes through the second dial block moving hole;

[0015] The first bolt comprises a cylindrical bolt rod, one end of the cylindrical bolt rod is provided with a cylindrical limiting block, the bottom area of the cylindrical limiting block is greater than the bottom area of the cylindrical bolt rod; the cylindrical bolt rod is further provided with a plug connected with the cylindrical limiting block, and the end of the cylindrical bolt rod not provided with the cylindrical limiting block is provided with a second groove.

[0016] Optionally, at least one first groove is arranged on the sidewall of the first bolt through hole; at least one plug connected with the cylindrical limiting block is arranged on the cylindrical bolt rod; the at least one first groove is symmetrical to each other; the at least one plug is symmetrical to each other; the plug matches the first groove; the plug is located in the first groove; the first bolt through hole is circular; the bottom area of the cylindrical bolt rod is the same as the area of the first bolt through hole.

[0017] Optionally, the first bolt wrapping component can rotatably wrap the first bolt; the second bolt wrapping component can rotatably wrap the second bolt.

[0018] Optionally, the cuboid slider and the cuboid hollow structure match each other; the cuboid slider, the first spring and the cuboid hollow structure constitute a first elastic structure; the end of the cuboid slider not connected with the first spring matches the second groove; the end of the cuboid slider not connected with the first spring is located in the second groove.

[0019] Optionally, the end of the cuboid slider not connected with the first spring and the end of the cylindrical bolt rod not provided with the cylindrical limiting block are both provided with an inclined surface.

[0020] Optionally, the cylindrical slider and the cylindrical hollow structure match each other; the cylindrical slider, the second spring and the cylindrical hollow structure constitute a second elastic structure.

[0021] Optionally, an end of the cylindrical slider not connected with the second spring is provided with a semi-cylindrical structure; a rectangular surface of the semi-cylindrical structure is in contact with the cylindrical limiting block; and the second pulling rope moving hole is L-shaped.

[0022] Optionally, the first pulling rope connecting assembly comprises a first pulling rope connecting sub-assembly, a second pulling rope connecting sub-assembly and a third pulling rope connecting sub-assembly; the first pulling rope connecting sub-assembly, the second pulling rope connecting sub-assembly and the third pulling rope connecting sub-assembly are connected between the blade and the support shaft; the second pulling rope connecting sub-assembly and the third pulling rope connecting sub-assembly are connected between any two adjacent blades; and the third pulling rope connecting sub-assembly, the third pulling rope connecting sub-assembly and the third pulling rope connecting sub-assembly are connected between the blade and the fixed ring.

[0023] Optionally, at least one first pulling rope connecting sub-assembly and at least one second pulling rope connecting sub-assembly are arranged on the side wall of any blade; the at least one first pulling rope connecting sub-assembly is arranged on any line parallel to the axis of the blade; the distance between any two adjacent first pulling rope connecting sub-assemblies is the same; the second pulling rope connecting sub-assembly is arranged on any line parallel to the axis of the support shaft; the distance between any two adjacent second pulling rope connecting sub-assemblies is the same; and the second pulling rope connecting sub-assembly of any blade is symmetrical along the axis of the blade.

[0024] Optionally, the third pulling rope connecting sub-assembly is arranged on the side wall of the fixed ring in a ring shape.

[0025] The embodiment of the present application has the following advantages:

[0026] In the embodiment of the present application, when the pulling rope of the wind wheel is installed, the first plug of the pulling rope is inserted into the first plug penetrating hole of the first pulling rope connecting assembly, the inclined surface of one end of the cylindrical plug rod of the first plug is in contact with the inclined surface of one end of the cuboid slider of the first pulling rope connecting assembly, the cuboid slider is extruded, the first spring is compressed, when the position of the cuboid slider coincides with the position of the second groove of the cylindrical plug rod, the cuboid slider is inserted into the second groove, and the first plug and the first pulling rope connecting assembly can be quickly installed, so that the pulling rope can be quickly installed. All the pulling ropes can be quickly installed on the wind wheel by using the same method, and the installation efficiency is improved.

[0027] When the pull rope connected with the first pull rope connecting assembly is disassembled, the second push block of the first pull rope connecting assembly is pushed to the end of the hollow structure of the cylinder without an opening, and the second push block is subsequently pushed upward to be clamped into the L-shaped movable slot. Then the first push block of the first pull rope connecting assembly is pushed to make the cuboid slider pulled out of the second groove, and the cylinder bolt rod is pulled out of the first bolt through hole, facilitating subsequent quick disassembly of the pull rope. All the pull ropes of the wind wheel can be quickly disassembled by using the same method, facilitating subsequent maintenance work. In the embodiment of the application, the wind wheel of the wind driven generator includes at least one pull rope, which is convenient for disassembly and installation after long-term use of the pull rope of the wind wheel, facilitates subsequent maintenance of the wind wheel, improves the work efficiency of the maintenance, and can prevent the connection part of the pull rope and the blade from loosening, affecting the use safety of the wind driven generator.

[0028] In the embodiment of the application, the cuboid slider and the cuboid hollow structure constitute an elastic mechanism through the first spring, and the cuboid slider can be stably inserted into the second groove on the cylinder bolt rod. The cylinder slider and the cylinder hollow structure constitute an elastic mechanism through the second spring, and the cylinder slider is subjected to the elastic force of the second spring. The rectangular surface on the cylinder slider can limit the cylinder bolt rod, prevent the cylinder bolt rod from loosening, and improve the stability of the pull rope after installation. According to the same principle, the stability of all the pull ropes of the wind wheel after installation can be improved.

[0029] In the embodiment of the application, the blade and the support shaft are connected through the first pull rope, and the blade and the fixing ring are connected through the second pull rope. The first pull rope and the second pull rope can resist the bending moment of the wind on the blade, improving the stability of the blade during use. In the embodiment of the application, the blades are evenly arranged in a ring on the side wall of the hub, and any two adjacent blades are connected through the third pull rope. The plurality of third pull ropes can offset the alternating stress generated by gravity when the blade rotates, improving the stability of the blade during use. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a front view structural schematic diagram of a wind wheel of a wind driven generator provided in the embodiment of the application;

[0031] Figure 2 is an axonometric structural schematic diagram of a wind wheel of a wind driven generator provided in the embodiment of the application;

[0032] Figure 3 is a schematic diagram of a first pull rope connecting assembly provided in the embodiment of the application;

[0033] Figure 4 is an enlarged schematic diagram of an A structure provided in the embodiment of the application;

[0034] Figure 5is an enlarged schematic view of an E structure provided in embodiments of the present application;

[0035] Figure 6 is an enlarged schematic view of a B structure provided in embodiments of the present application;

[0036] Figure 7 is an enlarged schematic view of a G structure provided in embodiments of the present application;

[0037] Figure 8 is an enlarged schematic view of a D structure provided in embodiments of the present application;

[0038] Figure 9 is an enlarged schematic view of an H structure provided in embodiments of the present application;

[0039] Figure 10 is an enlarged schematic view of a C structure provided in embodiments of the present application;

[0040] Figure 11 is an enlarged schematic view of an F structure provided in embodiments of the present application;

[0041] Figure 12 is a schematic view of a first mounting assembly provided in embodiments of the present application;

[0042] Figure 13 is a full cut schematic view of a first mounting assembly provided in embodiments of the present application;

[0043] Figure 14 is a schematic view of a first fixing assembly provided in embodiments of the present application;

[0044] Figure 15 is a full cut schematic view of a first fixing assembly provided in embodiments of the present application;

[0045] Figure 16 is a schematic view of a first latch provided in embodiments of the present application.

[0046] Explanation of reference signs: 1 - hub; 2 - support shaft; 3 - fixing ring; 4 - blade; 10 - first pull rope; 21 - second pull rope; 32 - third pull rope; 5 - first pull rope connecting subassembly; 6 - first mounting assembly of first pull rope connecting subassembly; 7 - first fixing assembly of first pull rope connecting subassembly; 8 - first bolt of first pull rope; 9 - first bolt wrapping assembly of first pull rope; 11 - second bolt wrapping assembly of first pull rope; 12 - second bolt of first pull rope; 13 - second pull rope connecting assembly; 14 - second mounting assembly; 15 - second fixing assembly; 20 - first bolt wrapping assembly of second pull rope; 16 - third pull rope connecting subassembly; 17 - first mounting assembly of third pull rope connecting subassembly; 18 - first fixing assembly of third pull rope connecting subassembly; 19 - first bolt of second pull rope; 22 - second bolt wrapping assembly of second pull rope; 23 - second bolt of second pull rope; 24 - third pull rope connecting assembly; 25 - third mounting assembly; 26 - third fixing assembly; 27 - second pull rope connecting subassembly; 28 - first fixing assembly of second pull rope connecting subassembly; 29 - first mounting assembly of second pull rope connecting subassembly; 30 - first bolt of third pull rope; 31 - first bolt wrapping assembly of third pull rope; 501 - first U-shaped frame; 502 - first groove; 601 - cuboid hollow structure; 602 - cuboid sliding block; 603 - first spring; 604 - first pushing block; 701 - cylindrical hollow structure; 702 - cylindrical sliding block; 703 - second spring; 704 - second pushing block; 801 - cylindrical bolt rod; 802 - cylindrical limiting block; 803 - inserting block; 804 - second groove. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned objectives, features and advantages of the present application more apparent and comprehensible, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] In order to facilitate the understanding of the technical solutions and technical effects of the embodiments of the present application, the prior art of the present application will be briefly described below.

[0049] The wind turbine is an energy conversion device that can convert wind energy in nature into mechanical energy, and use the mechanical energy to drive the rotor of the wind turbine to rotate and output stable alternating current power. Since wind is the airflow generated by the heating of the earth's surface by the sun, wind energy is actually a form of solar energy, and the wind turbine is a generator that uses the sun as a heat source and the atmosphere as a working medium to convert heat energy into electrical energy.

[0050] The wind turbine has wind power blades, and multiple wind power blades can form a wind power impeller. When the wind power blades of the wind turbine are in operation, they independently bear the wind force from the root to the tip by relying on their own structural strength. When the length of the blades doubles, the structural strength of the root of the wind power blades needs to increase by more than ten times. Under the premise of not increasing the overall weight of the impeller, it becomes more and more difficult to increase the length and strength of the wind power blades of the large wind power impeller. Therefore, a pull rope locking structure can be used to ensure that the wind power blades remain stable during operation and can withstand the impact of the wind in severe weather conditions.

[0051] However, the existing pull rope locking structure of the wind power blade generally adopts a screw mounting method, and the installation process is relatively complex, which reduces the installation efficiency. Secondly, the pull rope locking structure installed by the screw mounting method is not convenient to disassemble after long-term use, which reduces the maintenance efficiency of the wind turbine. Moreover, the pull rope locking structure fixed by the screw for a long time may have the problem of screw loosening, which not only may endanger the stability of the wind power blade, but also reduces the safety during use of the wind power blade, and cannot fully meet the user's demand for reliability and safety of the wind turbine.

[0052] Referring to Figure 1 , a front view structural schematic diagram of a wind wheel of a wind turbine is shown, which comprises a hub 1 in a cylindrical structure, a support shaft 2 in a cylindrical structure, at least one blade 4 in an elliptical cylindrical structure, and at least one pull rope; the blades 4 are arranged circumferentially on the side wall of the hub 1; the blades 4 are located on any plane parallel to the bottom surface of the profile of the cylindrical structure; the support shaft 2 is connected with one end of the hub 1; the outer side of the side wall of the end of the hub 1 not connected with the support shaft 2 is wrapped with a fixing ring 3; the blades 4 and the support shaft 2 are connected through the pull rope; the blades 4 and the fixing ring 3 are connected through the pull rope; any two adjacent blades 4 are connected through the pull rope;

[0053] At least one first pull rope connecting assembly in a U-shaped structure is arranged on the side wall of the blade 4; a first bolt penetrating hole and a first bolt fixing assembly are arranged on the side wall of the first pull rope connecting assembly;

[0054] At least one second pull rope connecting assembly 13 in a U-shaped structure is arranged on the side wall of the support shaft 2; a second bolt fixing assembly and a second bolt penetrating hole are arranged on the side wall of the second pull rope connecting assembly 13;

[0055] At least one third pull rope connecting assembly 24 in a U-shaped structure is arranged on the side wall of the fixing ring 3; a third bolt fixing assembly and a third bolt penetrating hole are arranged on the side wall of the third pull rope connecting assembly 24;

[0056] The two ends of the pull rope are respectively provided with a first bolt wrapping assembly and a second bolt wrapping assembly; the first bolt wrapping assembly wraps a first bolt; and the second bolt wrapping assembly wraps a second bolt;

[0057] In the case that the pull rope is used to connect the blade 4 and the support shaft 2, the first bolt 8 is penetrated into the first bolt penetration hole; the first bolt fixing assembly is used to ensure that the first bolt 8 is penetrated into the first bolt penetration hole; the second bolt 12 is penetrated into the second bolt penetration hole; and the second bolt fixing assembly is used to ensure that the second bolt 12 is penetrated into the second bolt penetration hole;

[0058] In the case that the pull rope is used to connect any two adjacent blades 4, the first bolt 30 and the second bolt are respectively penetrated into the first bolt penetration holes of the any two adjacent blades 4; and the first bolt fixing assemblies of the any two adjacent blades 4 are used to ensure that the first bolt 30 and the second bolt are respectively penetrated into the first bolt penetration holes;

[0059] In the case that the pull rope is used to connect the blade 4 and the fixed ring 3, the first bolt 19 is penetrated into the first bolt penetration hole; the first bolt fixing assembly is used to ensure that the first bolt 19 is penetrated into the first bolt penetration hole; the second bolt 23 is penetrated into the third bolt penetration hole; and the third bolt fixing assembly is used to ensure that the second bolt 23 is penetrated into the third bolt penetration hole;

[0060] A first recess 502 is arranged on the side wall of the first bolt penetration hole; the first bolt fixing assembly comprises a first installation assembly 6 and a first fixing assembly 7; the first installation assembly 6 comprises a cuboid hollow structure 601 and a cuboid sliding block 602; any bottom surface of the cuboid hollow structure 601 has a rectangular opening, and any side surface of the cuboid hollow structure 601 has a first push block moving hole; any bottom surface of the cuboid sliding block 602 is connected with a preset first spring 603, and any side surface of the cuboid sliding block 602 is provided with a first push block 604; the bottom area of the cuboid sliding block 602 is not greater than the area of the rectangular opening; the cuboid sliding block 602 is movably arranged in the interior of the cuboid hollow structure 601, and the first push block 604 penetrates through the first push block moving hole;

[0061] The first fixed assembly 7 comprises a cylindrical hollow structure 701 and a cylindrical slider 702; any bottom surface of the cylindrical hollow structure 701 is provided with a circular hole, and a second slider moving hole is arranged on the side wall of the cylindrical hollow structure 701; any bottom surface of the cylindrical slider 702 is connected with a preset second spring 703, and a second slider 704 is arranged on the side surface of the cylindrical slider 702; the bottom area of the cylindrical slider 702 is not greater than the area of the circular hole; the cylindrical slider 702 is movably arranged in the interior of the cylindrical hollow structure 701, and the second slider 704 passes through the second slider moving hole;

[0062] The first bolt 8 comprises a cylindrical bolt rod 801, one end of the cylindrical bolt rod 801 is provided with a cylindrical limiting block 802, the bottom area of the cylindrical limiting block 802 is greater than the bottom area of the cylindrical bolt rod 801; the cylindrical bolt rod 801 is further provided with a plug 803 connected with the cylindrical limiting block 802, and the end of the cylindrical bolt rod 801 not provided with the cylindrical limiting block 802 is provided with a second groove 804.

[0063] In the embodiment of the application, the wind wheel of the wind driven generator can comprise a hub 1 of a cylindrical structure, a support shaft 2 of a cylindrical structure, at least one blade 4 of an elliptical cylindrical structure, and at least one pull rope.

[0064] Referring to Figure 2 , a schematic view of an axial structure of a wind wheel of a wind driven generator provided in the embodiment of the application is shown. The blades 4 are uniformly arranged in a ring on the side wall of the hub 1, and the blades 4 are located on any plane parallel to the bottom surface of the profile of the cylindrical structure. The support shaft 2 is connected with one end of the hub 1 through a circular truncated cone structure, and the outside of the side wall of the end of the hub 1 not connected with the support shaft 2 is wrapped with a fixing ring 3. The blades 4 and the support shaft 2 are connected through first pull ropes 10; the blades 4 and the fixing ring 3 are connected through second pull ropes 21, and any two adjacent blades 4 are connected through third pull ropes 32.

[0065] In the embodiment of the application, at least one first pull rope connecting assembly of a U-shaped structure is arranged on the side wall of the blade 4. The first pull rope connecting assembly comprises a first pull rope connecting subassembly 5, a second pull rope connecting subassembly 27, and a third pull rope connecting subassembly 16. The blades 4 and the support shaft 2 are connected through the first pull rope connecting subassembly 5 and the first pull ropes 10, any two adjacent blades 4 are connected through the second pull rope connecting subassembly 27 and the third pull ropes 32, and the blades 4 and the fixing ring 3 are connected through the third pull rope connecting subassembly 16 and the second pull ropes 21. Figure 1 A structure in and Figure 2The E structure in the figure refers to the structure in which the first pull rope connecting subassembly 5 is connected with the first pull rope 10, and the structure in which the third pull rope connecting subassembly 16 is connected with the second pull rope 21. Figure 1 The D structure in the figure refers to the structure in which the second pull rope connecting subassembly 27 is connected with the third pull rope 32. Figure 2 The H structure in the figure refers to the structure in which the second pull rope connecting subassembly 27 is connected with the third pull rope 32.

[0066] The second pull rope connecting subassembly 27 comprises a first mounting assembly 29 of the second pull rope connecting subassembly 27 and a first fixing assembly 28 of the second pull rope connecting subassembly 27.

[0067] The third pull rope connecting subassembly 16 comprises a first mounting assembly 17 of the third pull rope connecting subassembly 16 and a first fixing assembly 18 of the third pull rope connecting subassembly 16.

[0068] Referring to Figure 3 , a schematic diagram of a first pull rope connecting assembly provided in an embodiment of the present application is shown. The first pull rope connecting assembly comprises a first U-shaped frame 501, and a first bolt penetrating hole is arranged on the side wall of the first U-shaped frame 501. It should be noted that a first bolt fixing assembly can also be arranged on the side wall of the first U-shaped frame 501.

[0069] In the embodiment of the present application, at least one second pull rope connecting assembly 13 in a U-shaped structure is arranged on the side wall of the support shaft 2. The second pull rope connecting assembly 13 comprises a second U-shaped frame, and a second bolt fixing assembly and a second bolt penetrating hole are arranged on the side wall of the second U-shaped frame. Figure 1 The B structure in the figure refers to the structure in which the second pull rope connecting assembly 13 is connected with the first pull rope 10. Figure 2 The G structure in the figure refers to the structure in which the second pull rope connecting assembly 13 is connected with the first pull rope 10. The second bolt fixing assembly comprises a second fixing assembly 15 and a second mounting assembly 14.

[0070] In the embodiment of the present application, at least one third pull rope connecting assembly 24 in a U-shaped structure is arranged on the side wall of the fixing ring 3. The third pull rope connecting assembly 24 comprises a third U-shaped frame, and a third bolt fixing assembly and a third bolt penetrating hole are arranged on the side wall of the third U-shaped frame. Figure 1 The C structure in the figure refers to the structure in which the third pull rope connecting assembly 24 is connected with the second pull rope 21. Figure 2 The F structure in the figure refers to the structure in which the third pull rope connecting assembly 24 is connected with the second pull rope 21. It should be noted that the structures of the first pull rope connecting subassembly 5, the second pull rope connecting subassembly 27, the third pull rope connecting subassembly 16, the second pull rope connecting assembly 13 and the third pull rope connecting assembly 24 are all the same. The third bolt fixing assembly comprises a third fixing assembly 26 and a third mounting assembly 25.

[0071] Referring to Figure 4 , an enlarged schematic diagram of the A structure provided in an embodiment of the present application is shown. Referring to Figure 5The diagram shows an enlarged schematic of an E-structure provided in an embodiment of the present invention. (Refer to...) Figure 6 The diagram shows an enlarged schematic of a B-structure provided in an embodiment of the present invention. (Refer to...) Figure 7 This diagram shows an enlarged schematic of a G-structure provided in an embodiment of the present invention. The first pull rope 10, the second pull rope 21, and the third pull rope 32 have identical structures. Each pull rope has a first pin-wrapping assembly and a second pin-wrapping assembly at both ends. The first pin-wrapping assembly encloses a first pin, and the second pin-wrapping assembly encloses a second pin. When the pull rope is used to connect the blade 4 and the support shaft 2, the first pin 8 passes through the first pin-through hole, and the first pin-fixing assembly ensures that the first pin 8 passes through the first pin-through hole. The second pin 12 passes through the second pin-through hole, and the second pin-fixing assembly ensures that the second pin 12 passes through the second pin-through hole.

[0072] The two ends of the second pull rope 21 are provided with a first pin wrapping assembly 20 and a second pin wrapping assembly 22. The first pin wrapping assembly 20 of the second pull rope 21 wraps the first pin 19 of the second pull rope 21, and the second pin wrapping assembly 22 of the second pull rope 21 wraps the second pin 23 of the second pull rope 21.

[0073] The third pull rope 32 has a first pin wrapping component 31 and a second pin wrapping component at both ends. The first pin wrapping component 31 of the third pull rope 32 wraps the first pin 30 of the third pull rope 32, and the second pin wrapping component of the third pull rope 32 wraps the second pin of the third pull rope 32.

[0074] Reference Figure 8 The diagram shows an enlarged schematic of a D-structure provided in an embodiment of the present invention. (Refer to...) Figure 9 The diagram shows an enlarged schematic of an H-structure provided in an embodiment of the present invention. When the pull rope is used to connect any two adjacent blades 4, the first pin 30 and the second pin respectively pass through the two first pin through holes of any two adjacent blades 4. The two first pin fixing components of any two adjacent blades 4 are used to ensure that the first pin 30 and the second pin respectively pass through the first pin through holes.

[0075] Reference Figure 10 The diagram shows an enlarged schematic of a C-structure provided in an embodiment of the present invention. (Refer to...) Figure 11The diagram shows an enlarged schematic of an F-structure provided in an embodiment of the present invention. With the pull rope used to connect the blade 4 and the retaining ring 3, the first pin 19 passes through the first pin through hole, and the first pin fixing assembly ensures that the first pin 19 passes through the first pin through hole. The second pin 23 passes through the third pin through hole, and the third pin fixing assembly ensures that the second pin 23 passes through the third pin through hole.

[0076] Reference Figure 3 A first groove 502 is provided on the side wall of the first pin through hole.

[0077] In this embodiment of the invention, the first pin fixing assembly includes a first mounting assembly 6 and a first fixing assembly 7. The first pin fixing assembly, the second pin fixing assembly, and the third pin fixing assembly have the same structure. (Refer to...) Figure 12 The diagram illustrates a first mounting component provided in an embodiment of the present invention. (Refer to...) Figure 13 This diagram shows a full cross-sectional view of a first mounting component provided in an embodiment of the present invention. The first mounting component 6 includes a rectangular hollow structure 601 and a rectangular slider 602. A rectangular opening is present on any bottom surface of the rectangular hollow structure 601, and a first movable block hole is present on any side surface of the rectangular hollow structure 601. A first movable block 604 is provided on any bottom surface of the rectangular slider 602, connected to a pre-set first spring 603, and a first movable block 604 is provided on any side surface of the rectangular slider 602. The bottom area of ​​the rectangular slider 602 is not greater than the area of ​​the rectangular opening. The rectangular slider 602 is movably partially disposed inside the rectangular hollow structure 601, and the first movable block 604 passes through the first movable block hole.

[0078] Reference Figure 14 The diagram illustrates a first fixing component provided in an embodiment of the present invention. (Refer to...) Figure 15 This diagram shows a full cross-sectional view of a first fixing component provided in an embodiment of the present invention. The first fixing component 7 includes a cylindrical hollow structure 701 and a cylindrical slider 702. A circular opening is present on any bottom surface of the cylindrical hollow structure 701, and a second toggle block moving hole is provided on the side wall of the cylindrical hollow structure 701. Any bottom surface of the cylindrical slider 702 is connected to a pre-set second spring 703, and a second toggle block 704 is provided on the side surface of the cylindrical slider 702. The bottom area of ​​the cylindrical slider 702 is not greater than the area of ​​the circular opening. The cylindrical slider 702 is movably partially disposed inside the cylindrical hollow structure 701, and the second toggle block 704 passes through the second toggle block moving hole.

[0079] Reference Figure 16The diagram illustrates a first pin according to an embodiment of the present invention. The first pin 8 includes a cylindrical pin rod 801, one end of which is provided with a cylindrical limiting block 802, the base area of ​​which is larger than the base area of ​​the cylindrical pin rod 801. The cylindrical pin rod 801 also has a plug 803 connected to the cylindrical limiting block 802, and the end of the cylindrical pin rod 801 without the cylindrical limiting block 802 has a second groove 804. It should be noted that the first pin 8 and the second pin 12 have the same structure, as do the first pin wrapping assembly 9 and the second pin wrapping assembly 11.

[0080] In this embodiment of the invention, when installing the wind turbine's pull rope, the first pin 8 of the pull rope can be inserted into the first pin through hole of the first pull rope connecting assembly. The inclined surface of one end of the cylindrical pin rod 801 of the first pin 8 contacts the inclined surface of one end of the cuboid slider 602 of the first pull rope connecting assembly, causing the cuboid slider 602 to be compressed and the first spring 603 to be compressed. When the cuboid slider 602 coincides with the position of the second groove 804 of the cylindrical pin rod 801, the cuboid slider 602 is inserted into the second groove 804. Then, the second lever 704 is released by moving it, and the rectangular surface on the cylindrical slider 702 can limit the cylindrical pin rod 801, enabling rapid installation between the first pin 8 and the first pull rope connecting assembly, thereby quickly installing the pull rope. Using the same method, all pull ropes can be quickly installed on the wind turbine, improving installation efficiency.

[0081] When disassembling the pull rope connected to the first pull rope connection assembly, the second lever 704 of the first pull rope connection assembly is moved towards the end of the cylindrical hollow structure 701 without an opening, and then the second lever 704 is moved upwards, causing the second lever 704 to engage in the L-shaped movable groove. Next, the first lever 604 of the first pull rope connection assembly is moved, causing the cuboid slider 602 to be pulled out from the second groove 804. Then, the cylindrical pin 801 is pulled out from the first pin through hole, facilitating subsequent quick disassembly of the pull rope. The same method can be used to quickly disassemble all the pull ropes of the wind turbine, facilitating subsequent maintenance. In this embodiment of the invention, the wind turbine rotor includes at least one pull rope. After prolonged use, the pull rope is easily disassembled and installed, facilitating subsequent maintenance of the wind turbine, improving maintenance efficiency, and preventing loosening of the connection between the pull rope and the blade 4, which could affect the safe operation of the wind turbine.

[0082] In this embodiment of the invention, the cuboid slider 602, through a first spring 603 and a hollow cuboid structure 601, forms an elastic mechanism, allowing the cuboid slider 602 to be stably inserted into the second groove 804 on the cylindrical pin 801. The cylindrical slider 702, through a second spring 703 and a hollow cylindrical structure 701, also forms an elastic mechanism. The cylindrical slider 702 is subjected to the elastic force of the second spring 703, and the rectangular surface on the cylindrical slider 702 can limit the movement of the cylindrical pin 801, preventing it from loosening and improving the stability after the pull rope is installed. Based on the same principle, the stability of all pull ropes on the wind turbine after installation can be improved.

[0083] In this embodiment of the invention, the blade 4 and the support shaft 2 are connected by a first pull rope 10, and the blade 4 and the fixing ring 3 are connected by a second pull rope 21. The first pull rope 10 and the second pull rope 21 can resist the bending moment of the wind on the blade 4, improving the stability of the blade 4 during use. In this embodiment of the invention, the blades 4 are evenly arranged circumferentially on the side wall of the hub 1, and any two adjacent blades 4 are connected by a third pull rope 32. Several third pull ropes 32 can counteract the alternating stress generated by gravity when the blades 4 rotate, improving the stability of the blades 4 during use.

[0084] Further, in any of the above embodiments, at least one first groove 502 is provided on the side wall of the first pin through hole; at least one insert block 803 connected to the cylindrical limiting block 802 is provided on the cylindrical pin rod 801; the at least one first groove 502 is symmetrical to each other; the at least one insert block 803 is symmetrical to each other; the insert block 803 matches the first groove 502; the insert block 803 is located inside the first groove 502; the first pin through hole is circular; the bottom area of ​​the cylindrical pin rod 801 is the same as the area of ​​the first pin through hole.

[0085] Reference Figure 3 At least one first groove 502 is provided on the side wall of the first pin through hole, and the at least one first groove 502 is symmetrical to each other. (Refer to...) Figure 16 The cylindrical pin rod 801 is provided with at least one insert block 803 connected to the cylindrical limiting block 802, and the at least one insert block 803 is symmetrical to each other. The size of the insert block 803 matches that of the first groove 502, and the insert block 803 is located inside the first groove 502.

[0086] In this embodiment of the invention, the first pin through hole is circular, and the base area of ​​the cylindrical pin rod 801 is the same as the area of ​​the first pin through hole. After the pull rope is installed through the cylindrical pin rod 801, the pull rope will not wobble, thus improving the stability of the pull rope after installation.

[0087] Furthermore, in any of the above embodiments, the first pin-wrapping assembly 9 rotatably wraps around the first pin 8; the second pin-wrapping assembly 11 rotatably wraps around the second pin 12.

[0088] In this embodiment of the invention, the first pin wrapping assembly 9 rotatably wraps the first pin 8, and the second pin wrapping assembly 11 rotatably wraps the second pin 12.

[0089] Furthermore, in any of the above embodiments, the cuboid slider 602 and the cuboid hollow structure 601 are matched with each other; the cuboid slider 602, the first spring 603, and the cuboid hollow structure 601 constitute a first elastic structure; the end of the cuboid slider 602 not connected to the first spring 603 is matched with the second groove 804; the end of the cuboid slider 602 not connected to the first spring 603 is located in the second groove 804.

[0090] Reference Figure 12 and Figure 13 The dimensions of the cuboid slider 602 and the cuboid hollow structure 601 are matched, and the cuboid slider 602, the first spring 603, and the cuboid hollow structure 601 constitute the first elastic structure. The end of the cuboid slider 602 not connected to the first spring 603 is matched with the dimensions of the second groove 804, and the end of the cuboid slider 602 not connected to the first spring 603 is located in the second groove 804.

[0091] In this embodiment of the invention, after the first pull rope 10 is fixed by the first mounting component 6, the first pull rope 10 will not shake, thus improving the stability of the first pull rope 10 after installation.

[0092] Furthermore, in any of the above embodiments, the end of the cuboid slider 602 not connected to the first spring 603 and the end of the cylindrical pin rod 801 not provided with the cylindrical limiting block 802 are both provided with inclined surfaces.

[0093] Reference Figure 12 and Figure 16 Both the end of the cuboid slider 602 that is not connected to the first spring 603 and the end of the cylindrical pin rod 801 that is not equipped with the cylindrical limiting block 802 are provided with inclined surfaces.

[0094] Furthermore, in any of the above embodiments, the cylindrical slider 702 and the cylindrical hollow structure 701 are matched with each other; the cylindrical slider 702, the second spring 703 and the cylindrical hollow structure 701 constitute a second elastic structure.

[0095] Reference Figure 14 and Figure 15The cylindrical slider 702 and the cylindrical hollow structure 701 are matched in size. The cylindrical slider 702, the second spring 703 and the cylindrical hollow structure 701 constitute the second elastic structure.

[0096] Furthermore, in any of the above embodiments, the end of the cylindrical slider 702 that is not connected to the second spring 703 is provided with a semi-cylindrical structure; the rectangular surface of the semi-cylindrical structure is in contact with the cylindrical limiting block 802; and the second toggle block moving hole is L-shaped.

[0097] Reference Figure 14 and Figure 15 The cylindrical slider 702 has a semi-cylindrical structure at one end that is not connected to the second spring 703, and the second paddle moving hole is L-shaped.

[0098] Reference Figure 5 The rectangular surface of the semi-cylindrical structure is in contact with the cylindrical limiting block 802.

[0099] The cylindrical slider 702 is subjected to the elastic force of the second spring 703. The rectangular surface on the cylindrical slider 702 can limit the cylindrical pin rod 801, improving the stability after the pull rope is installed. If the second lever 704 is pulled to the leftmost end of the second lever moving hole in the cylindrical hollow structure 701, and then the second lever 704 is subsequently pushed upward, the second lever 704 will be engaged in the second lever moving hole, facilitating the subsequent installation of the pull rope through the cylindrical pin rod 801.

[0100] Further, in any of the above embodiments, the first pull rope connection assembly includes a first pull rope connection sub-assembly 5, a second pull rope connection sub-assembly 27, and a third pull rope connection sub-assembly 16; the blade 4 and the support shaft 2 are connected by the first pull rope connection sub-assembly 5, the second pull rope connection assembly 13, and the pull rope; any two adjacent blades 4 are connected by the second pull rope connection sub-assembly 27 and the pull rope; the blade 4 and the fixing ring 3 are connected by the third pull rope connection sub-assembly 16, the third pull rope connection assembly 24, and the pull rope.

[0101] In this embodiment of the invention, the first pull rope connecting assembly includes a first pull rope connecting sub-assembly 5, a second pull rope connecting sub-assembly 27, and a third pull rope connecting sub-assembly 16. The blade 4 and the support shaft 2 are connected via the first pull rope connecting sub-assembly 5, the second pull rope connecting sub-assembly 13, and the first pull rope 10. Any two adjacent blades 4 are connected via the second pull rope connecting sub-assembly 27 and the third pull rope 32. The blade 4 and the fixing ring 3 are connected via the third pull rope connecting sub-assembly 16, the third pull rope connecting sub-assembly 24, and the second pull rope 21.

[0102] Further, in any of the above embodiments, at least one first pull rope connecting sub-assembly 5 and at least one second pull rope connecting sub-assembly 27 are provided on the sidewall of any blade 4; the at least one first pull rope connecting sub-assembly 5 is located on any line parallel to the axis of the blade 4; the distance between any two adjacent first pull rope connecting sub-assemblies 5 is the same; the second pull rope connecting sub-assembly 13 is located on any line parallel to the axis of the support shaft 2; the distance between any two adjacent second pull rope connecting sub-assemblies 13 is the same; the second pull rope connecting sub-assembly 27 of any blade 4 is symmetrical along the axis of the blade 4.

[0103] Reference Figure 1 Each blade 4 has at least one first pull rope connector 5 and at least one second pull rope connector 27 disposed on its sidewall. The at least one first pull rope connector 5 is located on any line parallel to the axis of the blade 4, and the distance between any two adjacent first pull rope connector assemblies 5 is the same. The second pull rope connector 27 of each blade 4 is located on any line parallel to the axis of the support shaft 2, and the distance between any two adjacent second pull rope connector assemblies 23 is the same. The second pull rope connector 27 of each blade 4 is symmetrical along the axis of the blade 4.

[0104] Furthermore, in any of the above embodiments, the third pull rope connecting assembly 24 is arranged circumferentially on the side wall of the fixing ring 3.

[0105] Reference Figure 1 The third pull rope connecting component 24 is arranged circumferentially on the side wall of the fixed ring 3.

[0106] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0107] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present invention.

[0108] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0109] The wind turbine rotor of the present invention has been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A wind wheel of a wind power generator, characterized by comprising: The application relates to a cylindrical structure hub, a cylindrical structure support shaft, at least one elliptical cylindrical structure blade and at least one pull rope. The blades are arranged on the side wall of the hub in a ring shape. The blades are located on any plane parallel to the bottom surface of the profile of the cylindrical structure; one end of the hub is connected with the support shaft; the outer side of the side wall of the end of the hub not connected with the support shaft is wrapped with a fixing ring; the blades and the support shaft are connected through the pull rope; the blades and the fixing ring are connected through the pull rope; any two adjacent blades are connected through the pull rope. At least one first pull rope connecting assembly in a U-shaped structure is arranged on the side wall of the blade; a first bolt penetrating hole and a first bolt fixing assembly are arranged on the side wall of the first pull rope connecting assembly. At least one second pull rope connecting assembly in a U-shaped structure is arranged on the side wall of the support shaft; a second bolt fixing assembly and a second bolt penetrating hole are arranged on the side wall of the second pull rope connecting assembly. At least one third pull rope connecting assembly in a U-shaped structure is arranged on the side wall of the fixing ring; a third bolt fixing assembly and a third bolt penetrating hole are arranged on the side wall of the third pull rope connecting assembly. First and second bolt wrapping assemblies are arranged at the two ends of the pull rope; a first bolt is wrapped in the first bolt wrapping assembly; a second bolt is wrapped in the second bolt wrapping assembly. In the case that the pull rope is used for connecting the blades and the support shaft, the first bolt is penetrated in the first bolt penetrating hole; the first bolt fixing assembly is used for ensuring that the first bolt is penetrated in the first bolt penetrating hole; the second bolt is penetrated in the second bolt penetrating hole; the second bolt fixing assembly is used for ensuring that the second bolt is penetrated in the second bolt penetrating hole. In the case that the pull rope is used for connecting any two adjacent blades, the first and second bolts are respectively penetrated in the first bolt penetrating holes of the any two adjacent blades; the first bolt fixing assemblies of the any two adjacent blades are used for ensuring that the first and second bolts are respectively penetrated in the first bolt penetrating holes. In the case that the pull rope is used for connecting the blades and the fixing ring, the first bolt is penetrated in the first bolt penetrating hole; the first bolt fixing assembly is used for ensuring that the first bolt is penetrated in the first bolt penetrating hole; the second bolt is penetrated in the third bolt penetrating hole; the third bolt fixing assembly is used for ensuring that the second bolt is penetrated in the third bolt penetrating hole. ​ The side wall of the first bolt through hole is provided with a first groove; the first bolt fixing assembly comprises a first mounting assembly and a first fixing assembly; the first mounting assembly comprises a cuboid hollow structure and a cuboid slider; any bottom surface of the cuboid hollow structure has a rectangular opening, and any side surface of the cuboid hollow structure has a first knob moving hole; any bottom surface of the cuboid slider is connected with a preset first spring, and any side surface of the cuboid slider is provided with a first knob; the bottom area of the cuboid slider is not greater than the area of the rectangular opening; the cuboid slider is movably arranged in the interior of the cuboid hollow structure, and the first knob passes through the first knob moving hole; The first fixing assembly comprises a cylindrical hollow structure and a cylindrical slider; any bottom surface of the cylindrical hollow structure has a circular opening, and the side wall of the cylindrical hollow structure is provided with a second knob moving hole; any bottom surface of the cylindrical slider is connected with a preset second spring, and the side surface of the cylindrical slider is provided with a second knob; the bottom area of the cylindrical slider is not greater than the area of the circular opening; the cylindrical slider is movably arranged in the interior of the cylindrical hollow structure, and the second knob passes through the second knob moving hole; The first bolt comprises a cylindrical bolt rod, one end of the cylindrical bolt rod is provided with a cylindrical limiting block, the bottom area of the cylindrical limiting block is greater than the bottom area of the cylindrical bolt rod; the cylindrical bolt rod is further provided with a plug connected with the cylindrical limiting block, and the end of the cylindrical bolt rod without the cylindrical limiting block is provided with a second groove.

2. The wind wheel of claim 1, wherein The side wall of the first bolt through hole is provided with at least one first groove; the cylindrical bolt rod is provided with at least one plug connected with the cylindrical limiting block; the at least one first groove is symmetrical to each other; the at least one plug is symmetrical to each other; the plug matches the first groove; the plug is located in the first groove; the first bolt through hole is circular; the bottom area of the cylindrical bolt rod is the same as the area of the first bolt through hole.

3. The wind wheel of claim 1, wherein, The first bolt wrapping assembly can rotatably wrap the first bolt; the second bolt wrapping assembly can rotatably wrap the second bolt.

4. The wind wheel of claim 1, wherein The cuboid slider and the cuboid hollow structure match each other; the cuboid slider, the first spring and the cuboid hollow structure constitute a first elastic structure; the end of the cuboid slider without the first spring matches the second groove; the end of the cuboid slider without the first spring is located in the second groove.

5. The wind wheel of claim 1, wherein, The end of the cuboid slider without the first spring and the end of the cylindrical bolt rod without the cylindrical limiting block are both provided with an inclined surface.

6. The wind wheel of claim 1, wherein, The cylindrical slider and the cylindrical hollow structure match each other; the cylindrical slider, the second spring and the cylindrical hollow structure constitute a second elastic structure.

7. The wind wheel of claim 1, wherein The end of the cylindrical slider not connected with the second spring is provided with a half-cylinder structure; the rectangular surface of the half-cylinder structure is in contact with the cylindrical limiting block; the second pull rope moving hole is L-shaped.

8. The wind wheel of claim 1, wherein, The first pull rope connecting assembly comprises a first pull rope connecting subassembly, a second pull rope connecting subassembly and a third pull rope connecting subassembly; the blade and the support shaft are connected through the first pull rope connecting subassembly, the second pull rope connecting assembly and the pull rope connection; any two adjacent blades are connected through the second pull rope connecting subassembly and the pull rope connection; the blade and the fixed ring are connected through the third pull rope connecting subassembly, the third pull rope connecting assembly and the pull rope connection.

9. The wind wheel of claim 8, wherein, The sidewall of any blade is provided with at least one first pull rope connecting subassembly and at least one second pull rope connecting subassembly; the at least one first pull rope connecting subassembly is located on any line parallel to the axis of the blade; the distance between any two adjacent first pull rope connecting subassemblies is the same; the second pull rope connecting assembly is located on any line parallel to the axis of the support shaft; the distance between any two adjacent second pull rope connecting assemblies is the same; the second pull rope connecting subassembly of any blade is symmetrical along the axis of the blade.

10. The wind wheel of claim 1, wherein, The third pull rope connecting assembly is arranged on the sidewall of the fixed ring in a ring shape.

Images