Wind turbine generator blade zero position adjusting structure

Abstract

The utility model discloses a wind turbine generator blade zero position adjusting structure which comprises a wind turbine bearing composed of an inner bearing ring and an outer bearing ring, an inner gear ring is arranged on the inner wall of the inner bearing ring, a cover plate connected with a blade is arranged at the outer end of the inner bearing ring, the outer bearing ring is fixed with a wind turbine hub, and the wind turbine generator blade zero position adjusting structure is arranged on the wind turbine generator blade zero position adjusting structure. A transmission gear meshed with the inner gear ring is installed on the wind power hub, a gear motor driving the inner gear ring to rotate is further arranged on the wind power hub, an original point positioning mechanism is arranged between the inner bearing ring and the outer bearing ring, and an angle sensor used for detecting the rotating angle of the inner bearing ring is installed between the inner bearing ring and the outer bearing ring. The outer bearing ring is provided with a butt joint mark which is in fixed-point butt joint with the wind power wheel, and the cover plate is provided with a connecting mark which is in fixed-point connection with the blade; according to the utility model, the angle of each blade after installation is ensured to be consistent, so that the zero position of the blade can be conveniently adjusted subsequently, an external measuring device is not needed for measurement, and time and labor are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of wind turbine generator unit, concretely is a kind of wind turbine generator unit blade zero adjustment structure. BACKGROUND

[0002] In recent years, the development and utilization of renewable energy have been widely concerned by countries around the world, and wind power generation, as the most widely used renewable energy, is widely researched and utilized. With the rapid development and mature application of wind power technology since the twenty-first century, the competition between wind power and other energy is becoming more and more fierce. It is more and more critical to ensure the safety and stability of wind turbine operation for operating companies, improve the power generation capacity of wind turbine, reduce the fault operation and maintenance time, and improve the efficiency in the increasingly fierce energy market by improving the power generation performance.

[0003] At present, variable speed variable pitch type wind turbine is generally used in large wind turbine generator set, and in the assembly of existing wind turbine variable pitch, in order to ensure the consistency of the blade, the angle of each blade needs to be consistent, and the existing method is to install first, and then measure the angle by using external measuring device, which is time-consuming and laborious. UTILITY MODEL CONTENTS

[0004] In order to solve the defects that the existing technology firstly installs, and then measures the angle by using external measuring device, which is time-consuming and laborious, the utility model provides a wind turbine generator blade zero adjustment structure.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0006] The utility model discloses a wind turbine generator blade zero adjustment structure, which comprises a wind turbine bearing composed of an inner bearing ring and an outer bearing ring, an inner tooth ring is arranged on the inner wall of the inner bearing ring, a cover plate connected with the blade is arranged on the outer end of the inner bearing ring, the outer bearing ring is fixed with the wind turbine hub, a transmission gear meshing with the inner tooth ring is installed on the wind turbine hub, a speed reducer motor driving the inner tooth ring to rotate is also arranged on the wind turbine hub, a zero point positioning mechanism is arranged between the inner bearing ring and the outer bearing ring, and an angle sensor for detecting the rotation angle of the inner bearing ring is installed between the inner bearing ring and the outer bearing ring.

[0007] As a preferred technical scheme of the utility model, the zero point positioning mechanism comprises a positioning block arranged on the outer bearing ring and a positioning seat arranged on the inner bearing ring, and a plug pin of plug is arranged between the positioning seat and the positioning block.

[0008] As a preferred technical scheme of the utility model, the bottom of the cover plate is provided with reinforcing ribs arranged transversely and longitudinally.

[0009] As a preferred technical scheme of the utility model, the cover plate is made of high-strength material.

[0010] As a preferred technical scheme of the utility model, the inner gear ring and the inner bearing ring are integrally formed.

[0011] The utility model discloses the beneficial effect is:

[0012] The wind turbine blade zero position adjusting structure is provided with a butt joint mark for butt joint with the wind power wheel fixed point on the outer bearing ring, so that the outer bearing ring and the wind power wheel hub can be butt jointed in a fixed posture, the cover plate is provided with a connecting mark for connecting with the blade fixed point, so that the blade and the cover plate are also butt jointed in a fixed posture, and the original point positioning mechanism is arranged between the inner bearing ring and the outer bearing ring, the inner bearing ring and the outer bearing ring are fixed through the original point positioning mechanism before installation, and the inner bearing ring and the outer bearing ring will not rotate, when the blade is installed after installation and assembly, the transmission gear is driven to rotate by the reduction motor, the inner bearing ring is driven to rotate through the transmission gear through the inner gear ring, and the angle sensor is utilized to detect the rotating angle at the same time, until the rotating angle of the inner bearing ring is convenient for installing the blade, the reduction motor is reversed after the blade is installed, the inner bearing ring is rotated back, and the original position is reached, so that the angle of each blade after installation is consistent, and the zero position of the blade is conveniently adjusted, and external measuring devices are not needed for measurement, time and labor are saved. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings are used to provide further understanding of the utility model and constitute a part of the specification, are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation to the utility model.In the drawings,

[0014] Figure 1 It is the structure schematic view of the wind turbine blade zero position adjusting structure of the utility model,

[0015] Figure 2 It is the positioning state schematic view of the original point positioning mechanism of the wind turbine blade zero position adjusting structure of the utility model,

[0016] Figure 3 It is the contact state schematic view of the original point positioning mechanism of the wind turbine blade zero position adjusting structure of the utility model,

[0017] Figure 4 It is the angle sensing installation schematic view of the wind turbine blade zero position adjusting structure of the utility model.

[0018] In the figure: 1, inner bearing ring; 2, outer bearing ring; 3, inner gear ring; 4, cover plate; 5, transmission gear; 6, speed reducer motor; 8, origin positioning mechanism; 9, angle sensor; 10, positioning block; 11, positioning seat; 12, bolt. DETAILED DESCRIPTION

[0019] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0020] Embodiment: as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 indicated, the utility model discloses a wind turbine blade zero position adjustment structure, including the wind power bearing that is composed of inner bearing ring 1 and outer bearing ring 2, the inner wall of inner bearing ring 1 is equipped with inner gear ring 3, and the outer end of inner bearing ring 1 is equipped with the cover plate 4 connected with the blade, and the outer bearing ring 2 is fixed with the wind power hub, and the transmission gear 5 engaged with inner gear ring 3 is installed on the wind power hub, and the speed reducer motor 6 driving inner gear ring 3 to rotate is also equipped on the wind power hub, and the origin positioning mechanism 8 is equipped between inner bearing ring 1 and outer bearing ring 2, and the angle sensor 9 for detecting the rotation angle of inner bearing ring is installed between inner bearing ring 1 and outer bearing ring 2.The outer bearing ring 2 is equipped with the butt joint mark butt jointed with the wind power wheel fixed point, and the cover plate 4 is equipped with the connection mark connected with the blade fixed point.The outer bearing ring is butt jointed with the wind power hub in the fixed attitude with the butt joint mark of the outer bearing ring 2 butt jointed with the wind power wheel fixed point, and the blade is also butt jointed with the cover plate in the fixed attitude, and the origin positioning mechanism 8 is equipped between inner bearing ring 1 and outer bearing ring 2, and inner bearing ring 1 and outer bearing ring 2 are fixed through the origin positioning mechanism 8 before installation, and inner bearing ring 1 and outer bearing 2 ring do not rotate, and when installing the blade after installation and assembly, the transmission gear is driven to rotate by the speed reducer motor 6, then the inner bearing ring is driven to rotate by the transmission gear through inner gear ring, and the angle sensor is used to detect the rotation angle at the same time, until the rotation angle of inner bearing ring is convenient for installing the blade, and after the blade is installed, the speed reducer motor is reversed, drives the inner bearing ring to rotate, and rotates to the original position, so that the angle of each blade after installation is consistent, and the zero position of the blade is adjusted conveniently, and external measuring device is not needed for measurement, time and labor are saved.

[0021] The origin positioning mechanism 8 includes the positioning block 10 arranged on the outer bearing ring 2 and the positioning seat 11 arranged on the inner bearing ring 1, and the bolt 12 of the plug plate is arranged between the positioning seat 11 and the positioning block 10, and the positioning is realized through the bolt, so that the utility model has the characteristics of simple structure and easy operation.

[0022] The bottom of the cover plate 4 is provided with transverse and longitudinal staggered reinforcing ribs.

[0023] The cover plate 7 is made of high-strength material, so that deformation and cracking are not easy to occur.

[0024] The inner gear ring 3 and the inner bearing ring 1 are integrally formed, have strong connection strength, and are not easy to deform.

[0025] In operation, the wind turbine blade zero position adjustment structure is provided with a butt joint mark on the outer bearing ring 2 for butt joint with a fixed point of the wind turbine wheel, so that the outer bearing ring and the wind turbine hub are butt jointed in a fixed attitude. The cover plate 4 is provided with a connection mark for connection with a fixed point of the blade, so that the blade and the cover plate are also butt jointed in a fixed attitude. The inner bearing ring 1 and the outer bearing ring 2 are fixed by the origin positioning mechanism 8 before installation, so that the inner bearing ring 1 and the outer bearing ring 2 do not rotate. After installation and assembly, the blade is installed. The transmission gear 5 is driven to rotate by the reduction motor 6, the inner bearing ring is driven to rotate by the transmission gear 5 through the inner gear ring 3, and the angle sensor 9 is used to detect the rotating angle until the inner bearing ring 1 is rotated to a convenient angle for installation of the blade. After installation of the blade, the reduction motor 6 is reversed to drive the inner bearing ring 1 to rotate back to the original position, so that the angles of each blade after installation are consistent, and the zero position of the blade is conveniently adjusted without the need for external measuring devices, which saves time and effort.

[0026] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A wind turbine blade zero position adjustment structure, characterized by: The wind power bearing is composed of an inner bearing ring (1) and an outer bearing ring (2), the inner wall of the inner bearing ring (1) is provided with an inner gear ring (3), the outer end of the inner bearing ring (1) is provided with a cover plate (4) connected with a blade, the outer bearing ring (2) is fixed with a wind power hub, the wind power hub is provided with a transmission gear (5) engaged with the inner gear ring (3), the wind power hub is further provided with a speed reducer motor (6) driving the inner gear ring (3) to rotate, a zero point positioning mechanism (8) is arranged between the inner bearing ring (1) and the outer bearing ring (2), an angle sensor (9) for detecting the rotation angle of the inner bearing ring is arranged between the inner bearing ring (1) and the outer bearing ring (2); the outer bearing ring (2) is provided with a butt joint mark butt jointed with the wind power wheel, and the cover plate (4) is provided with a connection mark connected with the blade.

2. The wind turbine blade zero position adjustment structure according to claim 1, wherein, The zero point positioning mechanism (8) comprises a positioning block (10) arranged on the outer bearing ring (2) and a positioning seat (11) arranged on the inner bearing ring (1), and a plug pin (12) is arranged between the positioning seat (11) and the positioning block (10).

3. The wind turbine blade zero position adjustment structure according to claim 1, wherein, The bottom of the cover plate (4) is provided with reinforcing ribs arranged transversely and longitudinally.

4. The wind turbine blade zero position adjustment structure according to claim 2, wherein, The cover plate (4) is made of high-strength material.

5. The wind turbine blade zero position adjustment structure according to claim 1, wherein, The inner gear ring (3) is integrally formed with the inner bearing ring (1).

Images