Wind power blade installation angle adjusting device

Abstract

The utility model relates to the technical field of wind power generation equipment, and discloses a wind power blade mounting angle adjusting device which comprises a fixing disc, the outer wall of the fixing disc is fixedly connected with a bearing sleeve, the inner wall of the bearing sleeve is rotationally connected with an inner gear ring, and the outer wall of the inner gear ring is fixedly connected with a connecting flange used for being connected with a mounting blade. The connecting flange can be driven to rotate through the angle adjusting mechanism, then angle adjustment of the blades is achieved, compared with the prior art, no auxiliary tool needs to be used in the installation process, the installation process is simple, convenient and rapid, and the assembly efficiency is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of wind power generation equipment, and in particular to a device for adjusting the installation angle of a wind power blade. Background Art

[0002] With the increasing global energy demand and the increasing awareness of environmental protection, wind power generation, as a clean and renewable energy form, has been widely used. However, the traditional wind turbine blade installation angle adjustment device often requires the use of auxiliary tooling during the installation process, the installation process is cumbersome, and the adjustment accuracy of the installation angle is not high, and repeated adjustments are required, which reduces the assembly efficiency. Therefore, a wind turbine blade installation angle adjustment device is proposed to solve the above problems.

[0003] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0004] In order to solve the problem that traditional wind turbine blade installation angle adjustment devices often require the use of auxiliary tooling during the installation process, the installation process is cumbersome, the adjustment accuracy of the installation angle is not high, and repeated adjustments are required, which reduces the assembly efficiency, the present application provides a wind turbine blade installation angle adjustment device.

[0005] The present application provides a wind turbine blade installation angle adjustment device that adopts the following technical solution:

[0006] A wind turbine blade installation angle adjustment device comprises a fixed plate, the outer wall of the fixed plate is fixedly connected to a bearing sleeve, the inner wall of the bearing sleeve is rotatably connected to an inner gear ring, the outer wall of the inner gear ring is fixedly connected to a connecting flange for connecting and installing a blade, and the outer wall of the fixed plate located inside the bearing sleeve is installed with an angle adjustment mechanism;

[0007] The angle adjustment mechanism includes a first mounting shaft rotatably connected to the outer wall of the fixed disk, the outer wall of the first mounting shaft is fixedly connected to a gear, the gear is meshed with the inner gear ring, the outer wall of the first mounting shaft located below the gear is fixedly connected to a worm gear, the angle adjustment mechanism also includes a worm rotatably connected to the outer wall of the fixed disk through two shaft seats, the worm is meshed with the worm gear, a servo motor is fixedly mounted on the outer wall of the fixed disk, the output shaft end of the servo motor is fixedly connected to one end of the worm, and an auxiliary locking assembly is also mounted on the outer wall of the fixed disk located inside the bearing sleeve.

[0008] Preferably, the auxiliary locking assembly includes a locking tooth block rotatably connected to the outer wall of the fixed disk through a second mounting shaft, and the outer wall of the fixed disk is movably mounted with a hydraulic rod through a third mounting shaft, the output end of the hydraulic rod is hinged to an end of the locking tooth block away from the second mounting shaft, and the locking tooth block is adaptively engaged with the inner gear ring.

[0009] Preferably, the outer side wall of the inner gear ring is movably connected with a plurality of balls, and the plurality of balls are evenly distributed on the outer side wall of the inner gear ring in a spaced circular array.

[0010] Preferably, the outer wall of the inner gear ring on one side facing the connecting flange is rotatably connected with a plurality of rollers, and the plurality of rollers are evenly distributed on the outer wall of the inner gear ring in an equidistant circular array, and the rollers and balls are both in contact with the inner wall of the bearing sleeve.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] 1. The connecting flange is used to connect and install the blades, and the device and the blades are fixed on the hub of the wind turbine generator through a fixing plate. Then, the connecting flange can be driven to rotate through the angle adjustment mechanism to achieve the angle adjustment of the blades. Compared with the existing technology, no auxiliary tooling is required during the installation process, the installation process is simple and fast, and the assembly efficiency is greatly improved;

[0013] 2. Through the meshing transmission of the worm and the worm wheel in the angle adjustment mechanism, the connecting flange has self-locking properties when rotating, and through the mutual cooperation of the auxiliary locking components, the relative position between the connecting flange and the fixed plate can be locked after the installation angle of the blade is adjusted to prevent the angle of the wind turbine blade from changing during the operation of the wind turbine, thereby ensuring the stability of the adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of an embodiment of the application;

[0015] Figure 2 is a first partial cross-sectional view of an embodiment of the application;

[0016] Figure 3 is a second partial cross-sectional view of the embodiment of the application;

[0017] Figure 4 is a third partial cross-sectional view of the embodiment of the application;

[0018] Figure 5 It is a front perspective schematic diagram of an embodiment of the application.

[0019] Explanation of the reference numerals in the accompanying drawings: 1. fixed plate; 2. bearing sleeve; 3. connecting flange; 4. inner gear ring; 401. ball; 402. roller; 5. first mounting shaft; 6. worm gear; 7. gear; 8. shaft seat; 9. worm; 10. servo motor; 11. second mounting shaft; 12. locking gear block; 13. third mounting shaft; 14. hydraulic rod. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-5 This application is described in further detail.

[0021] The present application embodiment discloses a wind turbine blade installation angle adjustment device. Figure 1-5 , a wind turbine blade installation angle adjustment device, comprising a fixed plate 1, the outer wall of the fixed plate 1 is fixedly connected to a bearing sleeve 2, the inner wall of the bearing sleeve 2 is rotatably connected to an inner gear ring 4, the outer wall of the inner gear ring 4 is fixedly connected to a connecting flange 3 for connecting and installing blades, and the outer wall of the fixed plate 1 located inside the bearing sleeve 2 is installed with an angle adjustment mechanism;

[0022] The angle adjustment mechanism includes a first mounting shaft 5 rotatably connected to the outer wall of the fixed disk 1, the outer wall of the first mounting shaft 5 is fixedly connected with a gear 7, the gear 7 is meshed with the inner gear ring 4, the outer wall of the first mounting shaft 5 located below the gear 7 is fixedly connected with a worm gear 6, the angle adjustment mechanism also includes a worm 9 rotatably connected to the outer wall of the fixed disk 1 through two shaft seats 8, the worm 9 is meshed with the worm gear 6, a servo motor 10 is fixedly installed on the outer wall of the fixed disk 1, the output shaft end of the servo motor 10 is fixedly connected to one end of the worm 9, and an auxiliary locking assembly is also installed on the outer wall of the fixed disk 1 located inside the bearing sleeve 2.

[0023] The auxiliary locking assembly includes a locking tooth block 12 rotatably connected to the outer wall of the fixed disk 1 through a second mounting shaft 11. A hydraulic rod 14 is movably installed on the outer wall of the fixed disk 1 through a third mounting shaft 13. The output end of the hydraulic rod 14 is hinged to one end of the locking tooth block 12 away from the second mounting shaft 11, and the locking tooth block 12 is adaptively engaged with the inner gear ring 4.

[0024] The outer wall of the inner gear ring 4 is movably connected with a plurality of balls 401 , and the plurality of balls 401 are evenly distributed on the outer wall of the inner gear ring 4 in a spaced circular array.

[0025] The outer wall of the inner gear ring 4 facing the connecting flange 3 is rotatably connected with a plurality of rollers 402 , which are evenly distributed on the outer wall of the inner gear ring 4 in a circular array with equal spacing, and the rollers 402 and balls 401 are both in contact with the inner wall of the bearing sleeve 2 .

[0026] The implementation principle of the wind turbine blade installation angle adjustment device of the embodiment of the present application is as follows: in actual use, the device can be fixedly installed on the hub of the wind turbine generator through the fixing plate 1. When the blade needs to be assembled, the cylindrical installation part of the wind turbine blade is connected and fixed to the connecting flange 3 through external auxiliary lifting equipment, thereby completing the overall assembly operation;

[0027] When the angle of the blade needs to be adjusted, the servo motor 10 can be started through the angle adjustment mechanism, and the output shaft of the servo motor 10 drives the worm 9 to rotate, and the worm 9 drives the worm wheel 6 meshing with it to rotate. At this time, the worm wheel 6 drives the first installation shaft 5 to rotate, and also drives the gear 7 to rotate. When the gear 7 rotates, it drives the inner gear ring 4 meshing with it to rotate, and the inner gear ring 4 rotates on the inner wall of the bearing sleeve 2. At the same time, the inner gear ring 4 also drives the connecting flange 3 and the wind turbine blade fixed to the outer wall of the connecting flange 3 to rotate, thereby adjusting the angle of the blade;

[0028] It is worth noting that when the inner gear ring 4 rotates on the inner wall of the bearing sleeve 2, the direct friction between the inner gear ring 4 and the bearing sleeve 2 is converted into rolling friction through the multiple balls 401 and the multiple rollers 402 on the outer wall of the inner gear ring 4, thereby reducing the friction force and making the inner gear ring 4 rotate more smoothly;

[0029] Through the meshing transmission of the worm 9 and the worm wheel 6 in the angle adjustment mechanism, the connecting flange 3 has self-locking property when rotating, and through the mutual cooperation of the auxiliary locking components, when adjusting the angle of the blade, the hydraulic rod 14 is started, the output end of the hydraulic rod 14 contracts, and the locking tooth block 12 is pulled to rotate around the second installation axis 11, so that the locking tooth block 12 is no longer meshed with the inner gear ring 4. At this time, the lock on the inner gear ring 4 is released, so that the connecting flange 3 can rotate. After the angle adjustment of the blade is completed, the hydraulic rod 14 is started, the output end of the hydraulic rod 14 is extended, and the locking tooth block 12 is pushed to rotate and reset around the second installation axis 11, so that the locking tooth block 12 is meshed with the inner gear ring 4 again, and the inner gear ring 4 is locked. After the installation angle of the blade is adjusted, the relative position between the connecting flange 3 and the fixed plate 1 can be locked to prevent the angle of the wind turbine blade from changing during the operation of the wind turbine generator, thereby ensuring the adjustment stability.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wind turbine blade installation angle adjustment device, comprising a fixing plate (1), characterized in that: The outer wall of the fixed disk (1) is fixedly connected to a bearing sleeve (2), the inner wall of the bearing sleeve (2) is rotatably connected to an inner gear ring (4), the outer wall of the inner gear ring (4) is fixedly connected to a connecting flange (3) for connecting and installing blades, and the outer wall of the fixed disk (1) located inside the bearing sleeve (2) is installed with an angle adjustment mechanism; The angle adjustment mechanism comprises a first mounting shaft (5) rotatably connected to the outer wall of the fixed disk (1); the outer wall of the first mounting shaft (5) is fixedly connected to a gear (7), the gear (7) meshing with the inner gear ring (4); the outer wall of the first mounting shaft (5) located below the gear (7) is fixedly connected to a worm gear (6); the angle adjustment mechanism also comprises a worm (9) rotatably connected to the outer wall of the fixed disk (1) via two shaft seats (8), the worm (9) meshing with the worm gear (6); a servo motor (10) is fixedly mounted on the outer wall of the fixed disk (1), the output shaft end of the servo motor (10) is fixedly connected to one end of the worm gear (9); and an auxiliary locking assembly is also mounted on the outer wall of the fixed disk (1) located inside the bearing sleeve (2).

2. A wind turbine blade installation angle adjustment device according to claim 1, characterized in that: The auxiliary locking assembly comprises a locking tooth block (12) rotatably connected to the outer wall of the fixed disk (1) via a second mounting shaft (11); a hydraulic rod (14) is movably mounted on the outer wall of the fixed disk (1) via a third mounting shaft (13); an output end of the hydraulic rod (14) is hinged to an end of the locking tooth block (12) away from the second mounting shaft (11); and the locking tooth block (12) is adaptively meshed with the inner gear ring (4).

3. The wind turbine blade installation angle adjustment device according to claim 1, characterized in that: The outer side wall of the inner gear ring (4) is movably connected to a plurality of rolling balls (401), and the plurality of rolling balls (401) are evenly distributed on the outer side wall of the inner gear ring (4) in a spaced circular array.

4. A wind turbine blade installation angle adjustment device according to claim 3, characterized in that: The outer wall of the inner gear ring (4) on one side facing the connecting flange (3) is rotatably connected to a plurality of rollers (402), and the plurality of rollers (402) are evenly distributed on the outer wall of the inner gear ring (4) in a circular array with equal spacing, and the rollers (402) and balls (401) are both in contact with the inner wall of the bearing sleeve (2).

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