Zero calibration tool for wind power blade

Abstract

The utility model relates to the technical field of auxiliary installation and debugging equipment of a wind driven generator, in particular to a zero calibration tool for a wind power blade, which comprises an installation shell, a laser device and a reflection assembly, the bottom of the installation shell is an attaching face used for being attached to the tooth face of the blade. The laser device is arranged on the mounting shell and is used for emitting two beams of laser to the two ends of the mounting shell in the length direction in the mounting shell; the reflecting assembly comprises two reflecting devices which are arranged at the two ends in the length direction in the mounting shell respectively, each reflecting device is provided with a reflecting surface, the reflecting surface of each reflecting device and the attaching surface of the mounting shell form an included angle of 45 degrees, and the reflecting devices are used for reflecting laser emitted by the laser device out of the mounting shell in the direction perpendicular to the attaching surface; a light emitting hole is formed in the attaching face of the mounting shell corresponding to the laser emitting position. The zero calibration device has the advantages that two parallel lasers perpendicular to the length direction of the mounting shell can be generated, and zero calibration of the blade can be facilitated through laser point positions.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary installation and debugging equipment for wind turbine generators, in particular to a zeroing tool for wind turbine blades. Background Art

[0002] Wind power generation, as a way to utilize wind energy, has been widely used. my country's wind power generation technology is relatively mature, and wind power generation devices are deployed all over the country.

[0003] Wind turbine blade zeroing is an important part of installation and commissioning. Whether the zeroing is accurate will directly affect the power generation efficiency and power curve of the wind turbine. Excessive zeroing deviation may even cause serious consequences such as unit vibration and blade damage.

[0004] Currently, there are two problems in blade zeroing in the wind power industry: 1. The zero mark of the blade of the wind turbine is not on the same plane as the zero mark of the hub. When using an ordinary ruler for zeroing, the zeroing effect is poor and the zeroing results of different operators have large deviations; 2. The zeroing device is complicated to operate and is not easy to carry. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a wind turbine blade zeroing tool.

[0006] The purpose of the utility model is achieved through the following technical solutions: A wind turbine blade zeroing tool, including a mounting shell, a laser device and a reflective component;

[0007] The bottom of the mounting housing is an attachment surface for attaching the blade tooth surface;

[0008] The laser device is arranged on the installation shell, and the laser device is used to emit two laser beams in the installation shell toward two ends of the installation shell in the length direction respectively;

[0009] The reflective assembly comprises two reflective devices respectively arranged at two ends of the mounting shell in the length direction, the reflective devices have a reflective surface, the reflective surface of the reflective device forms an angle of 45° with the attachment surface of the mounting shell, and the reflective device is used to reflect the laser emitted by the laser device out of the mounting shell in a direction perpendicular to the attachment surface;

[0010] A light emitting hole is arranged on the attachment surface of the mounting shell corresponding to the laser emitting position.

[0011] The utility model projects two laser beams on the attachment surface of the mounting shell in a direction perpendicular to the attachment surface by comparing a laser device and two reflecting devices. When using this embodiment, the attachment surface is attached to the tooth surface of the blade, the laser at one end of the tooling is aligned with the scale zero position on the blade, and the length direction of the tooth surface is aligned with the length direction of the mounting shell. Then, the pitch is manually adjusted so that the scale zero position on the hub coincides with the laser at the other end of the tooling, thereby completing the zero calibration of the blade. The utility model is easy to carry, simple to use, and has high zero calibration accuracy.

[0012] In some embodiments, the laser device includes a pre-reflection device and a laser emitting device, the laser emitting device is arranged on the top of the mounting shell, and the bottom of the laser emitting device has two laser sources arranged along the length direction of the mounting shell, and the two laser sources both emit lasers in the mounting shell in a direction perpendicular to the attachment surface; the pre-reflection device is arranged in the mounting shell, and the pre-reflection device has two pre-reflection surfaces, the two pre-reflection surfaces are respectively parallel to the reflection surfaces of the two reflection devices, and the two pre-reflection surfaces are respectively located at positions corresponding to the lasers emitted by the two laser sources, and the pre-reflection device is used to reflect the lasers emitted by the laser source to the reflection device. The utility model uses a laser emitting device in conjunction with a pre-reflection device to emit lasers to both ends of the mounting shell, so that the positions of the two laser sources are close, which is convenient for unified management of the laser sources.

[0013] In some embodiments, the laser device further includes a dimming structure, the dimming structure including a slide groove provided on the mounting shell and a slider provided on the laser emitting device and slidably connected to the slide groove, the slide groove being perpendicular to the length direction of the mounting shell. Through the dimming structure, when using the tooling, when attaching the mounting shell to the tooth surface of the blade, it is only necessary to fit the long side of the attachment surface with the long side of the blade tooth surface, so as to ensure that the length direction of the mounting shell is completely aligned with the length direction of the blade tooth surface, and then through the dimming structure, the laser position is translated in a direction perpendicular to the length direction of the blade tooth surface, so that the laser at one end of the tooling falls on the zero scale position on the blade, and then the pitch is adjusted so that the laser at the other end of the tooling falls on the zero scale position of the hub, so that the zero scale position of the hub is aligned with the zero scale position of the blade, and the zero calibration of the blade is completed.

[0014] In some embodiments, the light exit hole is a long strip hole perpendicular to the length direction of the mounting housing. The long strip light exit hole is used to ensure that the laser is not blocked during the process of moving the laser position when using the dimming structure.

[0015] In some embodiments, a light-transmitting plate is disposed on the light-emitting hole, and the light-transmitting plate seals the installation shell to keep the interior of the installation shell clean.

[0016] In some embodiments, a magnetic attraction structure is provided on the attachment surface of the mounting shell, which can allow the tooling to be adsorbed on the tooth surface of the blade for easy use.

[0017] In some embodiments, the magnetic attraction structure includes a magnet, and the magnet is fixedly connected to the attachment surface, and the magnet attracts the tooling to the tooth surface of the blade.

[0018] The utility model has the following advantages:

[0019] The utility model emits lasers to both ends of the mounting shell in the length direction through a laser device, and cooperates with a reflection device to reflect two laser beams out of the mounting shell at both ends of the mounting shell, and the two laser beams can be projected onto the scale of the hub and the scale of the blade respectively. When the two laser beams are projected onto the scale zero position of the blade and the scale zero position of the hub respectively, the scale zero position of the blade and the scale zero position of the hub are aligned, and the zero calibration of the blade is completed. The zero calibration accuracy is high, and the utility model is convenient to carry and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the wind turbine blade zero calibration tooling of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal optical path of the wind turbine blade zero calibration tool of the utility model;

[0022] Figure 3 This is a schematic diagram of the installation and use of the wind turbine blade zeroing tooling of the utility model;

[0023] In the figure: 1. mounting shell; 11. light outlet hole; 12. boss; 121. slide groove; 2. laser device; 21. pre-reflection device; 22. laser emitting device; 3. reflection device; 4. light-transmitting plate; 5. magnet. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0025] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0026] like Figure 1-Figure 3 As shown, a wind turbine blade zeroing tool comprises a mounting shell 1, a laser device 2 and a reflective component;

[0027] The bottom of the mounting housing 1 is an attachment surface for attaching the blade tooth surface;

[0028] The laser device 2 is disposed on the mounting housing 1, and is used to emit two laser beams in the mounting housing 1 toward two ends of the mounting housing 1 in the length direction respectively;

[0029] The reflection assembly comprises two reflection devices 3 respectively arranged at two ends of the length direction of the mounting shell 1, the reflection device 3 has a reflection surface, the reflection surface of the reflection device 3 forms an angle of 45° with the attachment surface of the mounting shell 1, and the reflection device 3 is used to reflect the laser emitted by the laser device 2 out of the mounting shell 1 in a direction perpendicular to the attachment surface;

[0030] A light emitting hole 11 is provided on the attachment surface of the mounting shell 1 corresponding to the laser emitting position.

[0031] Specifically, in the present embodiment, the mounting shell 1 is a rectangular box body, and the length of the mounting shell 1 is greater than the length of the blade tooth surface, ensuring that the two ends of the mounting shell 1 can protrude from the tooth surface when the mounting shell 1 is attached to the tooth surface; the laser device 2 is arranged in the middle position of the mounting shell 1; the reflecting device 3 is a plate-shaped component, and the two reflecting devices 3 are respectively arranged at the two end positions in the mounting shell 1, and the two reflecting devices 3 form an angle of 45° with the attachment surface of the mounting shell 1, and the reflecting surfaces of the two reflecting devices 3 reflect the laser emitted by the laser device 2 out of the attachment surface in a direction perpendicular to the attachment surface.

[0032] In the application process of this embodiment, the tool is attached to the tooth surface of the blade, the laser emitted from one end of the installation box is aligned with the zero position of the blade scale, and the length direction of the installation box is aligned with the length direction of the tooth surface, and zero calibration begins, and the blade pitch is adjusted and changed. When the laser emitted from the other end of the installation box is aligned with the zero position of the hub scale, the blade is zeroed. The utility model avoids the problem of low blade zero calibration accuracy when the blade scale and the hub scale are not in the same plane by projecting lasers at both ends of the installation box, and the tool is an integrated structure, which is easy to carry and use.

[0033] Preferably, the laser device 2 includes a pre-reflection device 21 and a laser emitting device 22, the laser emitting device 22 is arranged on the top of the mounting shell 1, and the bottom of the laser emitting device 22 has two laser sources arranged along the length direction of the mounting shell 1, and the two laser sources both emit lasers in the mounting shell 1 in a direction perpendicular to the attachment surface; the pre-reflection device 21 is arranged in the mounting shell 1, and has two pre-reflection surfaces on the pre-reflection device 21, the two pre-reflection surfaces are respectively parallel to the reflection surfaces of the two reflection devices 3, and the two pre-reflection surfaces are respectively located at positions corresponding to the lasers emitted by the two laser sources, and the pre-reflection device 21 is used to reflect the laser emitted by the laser source to the reflection device 3.

[0034] Specifically, in this embodiment, the pre-reflection device 21 is a plate-like structure, and two pre-reflection surfaces are arranged on the pre-reflection device 21. The angles between the two pre-reflection surfaces and the attachment surface are both 45°, and a triangular structure is formed between the two pre-reflection surfaces and the attachment surface. The two pre-reflection surfaces are parallel to the two reflection surfaces respectively; a boss 12 is arranged on the top of the mounting shell 1, and the laser emitting device 22 is arranged on the boss 12, wherein the plane on the top of the boss 12 is made of transparent materials such as acrylic or glass, so that the laser emitted by the laser emitting device 22 can enter the mounting shell 1 conveniently.

[0035] Preferably, the laser device 2 further includes a dimming structure, which includes a slide groove 121 arranged on the mounting shell 1 and a slider arranged on the laser emitting device 22 and slidably connected to the slide groove 121, and the slide groove 121 is perpendicular to the length direction of the mounting shell 1.

[0036] Specifically, in this embodiment, the slide groove 121 is arranged on the boss 12. In this embodiment, the height of the mounting housing 1 is consistent with the height of the pre-reflection device 21. In order to make the slide groove 121 avoid the pre-reflection device 21, the boss 12 is arranged so that the slide groove 121 is arranged on the boss 12 to avoid the pre-reflection device 21. Through the slide groove 121, the laser emitting device 22 can move on the mounting housing 1 in a direction perpendicular to the length direction of the mounting housing 1. When the tool is installed on the blade tooth surface, it is not necessary to first align the laser with the zero position of the blade scale and then align the length direction of the tool with the length direction of the blade tooth surface; instead, the side edge of the tool can be directly aligned with the side edge of the blade tooth surface, so that the length direction of the tool is first aligned with the length direction of the blade tooth surface, and then the position of the laser emitting device 22 is adjusted so that the laser at one end of the tool is aligned with the zero position of the blade scale. Since the length direction of the tool is naturally aligned with the length direction after the side edge of the tool is aligned with the side edge of the blade tooth surface, the accuracy is high.

[0037] Preferably, the light exit hole 11 is a long strip hole perpendicular to the length direction of the mounting housing 1. The long strip light exit hole 11 cooperates with the dimming structure to ensure that the laser can always be emitted from the mounting housing 1 during the dimming process of the dimming structure to avoid light blocking.

[0038] Preferably, a light-transmitting plate 4 is disposed on the light-emitting hole 11 . The light-transmitting plate 4 seals the mounting housing 1 to prevent debris from falling into the mounting housing 1 .

[0039] Preferably, a magnetic attraction structure is provided on the attachment surface of the mounting housing 1. The magnetic attraction structure facilitates the fixing of the tooling on the tooth surface of the blade.

[0040] Preferably, the magnetic attraction structure includes a magnet 5, and the magnet 5 is fixedly connected to the attachment surface. In this embodiment, the magnet 5 and the attachment surface can be bonded or bolted, and the magnet 5 is rectangular. The tooling is adsorbed on the tooth surface of the blade by the magnet 5 for easy fixation.

[0041] The method of using this embodiment is: first, use the magnet 5 on the mounting shell 1 to fit the attachment surface of the mounting shell 1 with the tooth surface on the blade that is closest to the blade scale zero position, then fit the side edge of the mounting shell 1 with the side edge of the tooth surface flush, so that the length direction of the tooling is the same as the length direction of the tooth surface, and then move the laser emitting device 22 through the dimming structure to align the laser at one end of the tooling with the scale zero position on the blade. At this time, the tooling installation is completed, and the blade pitch is adjusted until the scale zero position on the hub is aligned with the laser emitted from the other end of the tooling to complete the zero calibration of the blade.

[0042] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the above-mentioned technical content without departing from the scope of the technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the utility model without departing from the content of the technical solution of the utility model shall fall within the protection scope of the technical solution of the utility model.

Claims

1. A wind turbine blade zeroing tool, characterized in that: include: An installation shell (1), wherein the bottom of the installation shell (1) is an attachment surface for attaching to a blade tooth surface; A laser device (2), the laser device (2) being arranged on the mounting shell (1), the laser device (2) being used to emit two laser beams from inside the mounting shell (1) to the two ends of the mounting shell (1) in the length direction respectively; A reflection assembly, the reflection assembly comprising two reflection devices (3) respectively arranged at two ends of the mounting shell (1) in the longitudinal direction, the reflection device (3) having a reflection surface, the reflection surface of the reflection device (3) forming an angle of 45° with the attachment surface of the mounting shell (1), the reflection device (3) being used to reflect the laser emitted by the laser device (2) out of the mounting shell (1) in a direction perpendicular to the attachment surface; A light emitting hole (11) is provided on the attachment surface of the mounting shell (1) corresponding to the laser emitting position.

2. A wind turbine blade zero calibration tool according to claim 1, characterized in that: The laser device (2) comprises a pre-reflection device (21) and a laser emitting device (22); the laser emitting device (22) is arranged on the top of the mounting shell (1); the bottom of the laser emitting device (22) has two laser sources arranged along the length direction of the mounting shell (1); the two laser sources both emit lasers in a direction perpendicular to the attachment surface in the mounting shell (1); the pre-reflection device (21) is arranged in the mounting shell (1); the pre-reflection device (21) has two pre-reflection surfaces; the two pre-reflection surfaces are respectively parallel to the reflection surfaces of the two reflection devices (3); the two pre-reflection surfaces are respectively located at positions corresponding to the lasers emitted by the two laser sources; the pre-reflection device (21) is used to reflect the lasers emitted by the laser sources to the reflection device (3).

3. A wind turbine blade zeroing tool according to claim 2, characterized in that: The laser device (2) further comprises a dimming structure, the dimming structure comprising a slide groove (121) arranged on the mounting shell (1) and a sliding block arranged on the laser emitting device (22) and slidably connected to the slide groove (121), wherein the slide groove (121) is perpendicular to the length direction of the mounting shell (1).

4. A wind turbine blade zero calibration tool according to claim 3, characterized in that: The light exit hole (11) is a long strip-shaped hole with a direction perpendicular to the length direction of the mounting housing (1).

5. A wind turbine blade zero calibration tool according to claim 4, characterized in that: A light-transmitting plate (4) is arranged on the light exit hole (11).

6. A wind turbine blade zero calibration tool according to claim 1, characterized in that: A magnetic attraction structure is provided on the attachment surface of the installation shell (1).

7. A wind turbine blade zero calibration tool according to claim 6, characterized in that: The magnetic attraction structure comprises a magnet (5), and the magnet (5) is fixedly connected to the attachment surface.

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