A wind turbine blade zeroing device

Abstract

The invention discloses a blade zeroing device for a wind turbine generator set, and relates to the technical field of blade zeroing. The invention aims at the problem that there is a certain distance between a blade and a hub, and there may be deviation in visual inspection during zeroing. The device comprises a scale display mechanism and a zero-degree marking mechanism, the zero-degree marking mechanism is arc-shaped as a whole, the zero-degree marking mechanism is connected to the hub, the scale display mechanism comprises a connecting rod, one end of the connecting rod is connected to the blade, and an indicator is arranged at the other end of the connecting rod, and the indicator points to a mark in the zero-degree marking mechanism; the scale display mechanism and the zero-degree marking mechanism are used to assist in zeroing between the blade and the hub, when the blade rotates, the scale display mechanism and the zero-degree marking mechanism move relatively, and when the indicator of the scale display mechanism points to the mark in the zero-degree marking mechanism, the zeroing is completed, and the device is not only convenient to use during zeroing, but also avoids the situation that deviation is generated by visual inspection during zeroing, so that the zeroing is more accurate.

Description

Technical Field

[0001] The invention belongs to the technical field of blade zeroing, and in particular relates to a blade zeroing device for a wind turbine generator set. Background Art

[0002] When a wind turbine is in use, the position of the wind turbine set and the hub is particularly important. The deviation between the position of the wind turbine set and the hub directly affects the use of the wind turbine. Therefore, the position of the wind turbine set and the hub needs to be calibrated to zero. However, there is no fixed zeroing device nowadays. Most of the time, the position is adjusted by visual inspection during zeroing. However, due to the certain distance between the blades and the hub, there will be a certain deviation during visual inspection, which is not convenient to use. Summary of the invention

[0003] The invention provides a wind turbine blade zeroing device, which solves the problem that the position is adjusted by visual inspection during the existing zeroing, and there will be a certain deviation during visual inspection due to a certain distance between the blade and the hub, which is inconvenient to use.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a blade zeroing device for a wind turbine generator set, including a scale display mechanism and a zero-degree marking mechanism, the zero-degree marking mechanism is arc-shaped as a whole, the zero-degree marking mechanism is connected to the hub, the scale display mechanism includes a connecting rod, one end of the connecting rod is connected to the blade, and an indicator is set at the other end of the connecting rod, and the indicator points to the mark in the zero-degree marking mechanism.

[0005] The indicator adopts a laser lamp.

[0006] The indicator adopts a pointer, the pointer is arranged on a connecting rod, and the connecting rod adopts a telescopic rod.

[0007] A suction cup is arranged at one end of the connecting rod connected with the blade, and the suction cup is a flexible suction cup or a magnetic suction cup.

[0008] The zero-degree marking mechanism is connected with a supporting mechanism, the supporting mechanism is in an arc-shaped structure, the zero-degree marking mechanism is arranged on one side of the supporting mechanism, and the zero-degree marking mechanism is in an arc-shaped structure.

[0009] The supporting mechanism includes a base and a magnetic block. A groove is provided on the base. A fixing rod is arranged at the bottom end of the connecting rod. The lower end of the fixing rod is slidably arranged in the groove. A pointer is arranged at the lower end of the fixing rod. Scale lines are also marked on the base. The magnetic block is arranged under the base. The magnetic block has an arc-shaped structure and is tightly attached to the base.

[0010] The zero-degree marking mechanism comprises a connecting plate, which is connected to the base and has an arc-shaped structure. A zero-degree marking plate is arranged on the inner arc side surface of the connecting plate to directly serve as the marking.

[0011] A laser transmitter is arranged on the scale display mechanism as an indicator, and a laser receiver is arranged on the zero degree marking mechanism as a mark.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects:

[0013] The present invention assists the zero calibration between the blade and the hub through a scale display mechanism and a zero-degree marking mechanism. When the blade rotates, the scale display mechanism and the zero-degree marking mechanism move relatively. When the indicator of the scale display mechanism points to the mark in the zero-degree marking mechanism, the zero calibration is completed, thereby avoiding the situation where deviation is generated by visual inspection during zero calibration, and making the zero calibration more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a structural side view of the present invention.

[0016] Figure 3 It is a schematic diagram of the supporting mechanism and the zero-degree marking mechanism structure of the present invention.

[0017] Numbers in the figure: 1. Magnetic suction cup; 2. Fixed seat; 3. Scale display mechanism; 301. Connecting rod; 302. Button; 303. Laser light; 4. Support mechanism; 401. Base; 402. Slide groove; 403. Groove; 404. Scale line; 405. Magnetic suction block; 5. Zero degree marking mechanism; 501. Connecting plate; 502. Zero degree marking plate; 6. Fixed rod; 7. Pointer; 8. Slider. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] refer to Figure 1 and Figure 2 A wind turbine blade zeroing device includes a scale display mechanism 3 and a zero-degree marking mechanism 5. The zero-degree marking mechanism 5 is arc-shaped as a whole and is connected to a hub. The scale display mechanism 3 includes a connecting rod 301. One end of the connecting rod 301 is connected to the blade. An indicator is arranged at the other end of the connecting rod 301, and the indicator points to a mark in the zero-degree marking mechanism 5.

[0020] Preferably, the indicator is a laser light 303 .

[0021] As another optional embodiment, the indicator is a pointer 7, and the pointer 7 is arranged on the connecting rod 301, and the connecting rod 301 is a telescopic rod.

[0022] A suction cup is arranged at one end of the connecting rod 301 connected to the blade. When the blade connection is made of composite material, the suction cup is a flexible suction cup that can be well adsorbed on the surface of the component; when the blade connection is made of steel, a magnetic suction cup has a good fixing effect.

[0023] The zero-degree marking mechanism 5 is connected to the supporting mechanism 4, and the supporting mechanism 4 has an arc-shaped structure. The zero-degree marking mechanism 5 is arranged on one side of the supporting mechanism 4, and the zero-degree marking mechanism 5 has an arc-shaped structure; the supporting mechanism 4 includes a base 401 and a magnetic block 405, a groove 403 is provided on the base 401, a fixing rod 6 is provided at the bottom end of the connecting rod 301, and the lower end of the fixing rod 6 is slidably arranged in the groove 403, and a pointer 7 is provided at the lower end of the fixing rod 6. The base 401 is also marked with scale lines 404, and the magnetic block 405 is arranged under the base 401, and the magnetic block 405 has an arc-shaped structure and is close to the base 401; the zero-degree marking mechanism 5 includes a connecting plate 501, which is connected to the base 401, and the connecting plate 501 has an arc-shaped structure. The inner arc side of the connecting plate 501 is provided with a zero-degree marking plate 502 which directly serves as the marking.

[0024] As an optional real-time example, a laser transmitter is provided on the scale display mechanism 3 as an indicator, and a laser receiver is provided on the zero-degree marking mechanism 5 as a mark.

[0025] Of course, a distance sensor may be provided on the scale display mechanism 3 and the zero-degree marking mechanism 5, and whether it is zero-degree can be determined according to the distance monitored by the distance sensor.

[0026] Reference Figure 1-Figure 3 A wind turbine blade zeroing device includes a supporting mechanism 4, the supporting mechanism 4 is in an arc-shaped structure, and a zero-degree marking mechanism 5 is arranged on one side of the supporting mechanism 4, the zero-degree marking mechanism 5 is arranged vertically with the supporting mechanism 4, and the zero-degree marking mechanism 5 is in an arc-shaped structure, a scale display mechanism 3 is arranged on the top of the supporting mechanism 4, a fixed seat 2 is fixedly installed on one end of the scale display mechanism 3, the scale display mechanism 3 includes a connecting rod 301, a button 302 and a laser lamp 303, one end of the connecting rod 301 is fixedly connected to the fixed seat 2, and the top of the connecting rod 301 is provided with a button 302, and the connecting rod 301 is provided with a button 302. A laser lamp 303 is provided at one end of the rod 301 away from the fixed seat 2, a fixed rod 6 is provided at the bottom end of the connecting rod 301, and a slider 8 is provided at the bottom end of the fixed rod 6, the slider 8 is located inside the supporting mechanism 4, and a pointer 7 is provided on one side of the fixed rod 6, and the pointer 7 is located at the bottom end of the supporting mechanism 4. The present invention is provided with a base, a slide groove, a groove, a scale and a magnetic block. When in use, when the blade rotates, the fixed rod drives the slider to slide in the slide groove and the groove, so that the pointer rotates. When the position of the pointer points to the zero degree line, the zero calibration between the blade and the hub is completed, which is convenient to use during zero calibration.

[0027] like Figure 1 and Figure 2 As shown, the fixing seat 2 is arranged in a circular shape, and a magnetic suction cup 1 is arranged at one end of the fixing seat 2. The device can be fixed on the blade through the magnetic suction cup 1, so that the device is easy to use and assemble.

[0028] like Figure 1 and Figure 3 As shown, the supporting mechanism 4 includes a base 401, a slide groove 402, a groove 403, scale lines 404 and a magnetic block 405. The bottom end of the base 401 is provided with a magnetic block 405, and the base 401 and the magnetic block 405 are in an arc-shaped structure. The inner wall of the base 401 is provided with a slide groove 402, and grooves 403 are provided on both sides of the slide groove 402. The slide groove 402 and the groove 403 are used in conjunction with the slider 8. The outer surface of the base 401 is provided with scale lines 404. By moving the pointer 7, zeroing can be performed quickly and accurately, thereby increasing the flexibility of the device.

[0029] like Figure 2 and Figure 3 As shown, the zero-degree marking mechanism 5 includes a connecting plate 501 and a zero-degree marking plate 502. The connecting plate 501 is fixedly connected to the base 401, and the connecting plate 501 is in an arc-shaped structure. A zero-degree marking plate 502 is arranged on one side of the connecting plate 501. The light from the laser lamp 303 is irradiated onto the zero-degree marking mechanism 5, which can make the position during zero calibration more accurate.

[0030] Working principle: When the device is in use, first install the base 401 on the hub through the magnetic block 405, then fix the fixing seat 2 on the blade through the magnetic suction cup 1, and then when zeroing, when the blade rotates, the fixing rod 6 drives the slider 8 to slide in the slide slot 402 and the groove 403, so that the pointer 7 rotates. When the position of the pointer 7 points to the zero-degree line, the zeroing between the blade and the hub is completed, which is convenient for checking the deviation during zeroing. When in use, press the button 302 to start the laser light 303, so that the light of the laser light 303 is directed to the zero-degree identification plate 502 on the surface of the connecting plate 501. Then, when the blade rotates, it drives the connecting rod 301 to rotate, and the rotation of the connecting rod 301 makes The laser lamp 303 rotates, thereby changing the position of the laser lamp 303 light. The zero calibration is completed by checking the position of the laser lamp 303 light and the zero degree identification plate 502. After the zero calibration is completed, the magnetic suction cup 1 is separated from the blade, and then the magnetic suction block 405 is separated from the hub. When in use, press the button to start the laser lamp, so that the laser lamp light is directed to the zero degree identification plate on the surface of the connecting plate. Then, when the blade rotates, it drives the connecting rod to rotate, and the connecting rod rotation causes the laser lamp to rotate, thereby changing the position of the laser lamp light. The zero calibration is completed by checking the position of the laser lamp light and the zero degree identification plate, avoiding the situation where deviation is caused by visual inspection during zero calibration, making the zero calibration more accurate.

[0031] In summary, the device is not only convenient to use during zero calibration, but also avoids the situation where deviation is caused by visual inspection during zero calibration, making the zero calibration more accurate.

[0032] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the claims of the present invention.

Claims

1. A wind turbine blade zeroing device, characterized in that: The invention comprises a scale display mechanism (3) and a zero-degree marking mechanism (5), wherein the zero-degree marking mechanism (5) is arc-shaped as a whole, and the zero-degree marking mechanism (5) is connected to the wheel hub. The scale display mechanism (3) comprises a connecting rod (301), one end of the connecting rod (301) is connected to the blade, and an indicator is arranged at the other end of the connecting rod (301), and the indicator points to the mark in the zero-degree marking mechanism (5); the indicator adopts a laser light (303) or a pointer (7); when the indicator adopts a laser light (303), the zero-degree marking mechanism (5) is provided with a laser receiver as the mark; when the indicator adopts a pointer (7), the pointer (7) is arranged on the connecting rod (301), and the connecting rod (301) adopts a retractable rod; a suction cup is arranged at one end of the connecting rod (301) connected to the blade, and the suction cup is a flexible suction cup or a magnetic suction cup (1); the zero-degree marking mechanism (5) is connected to a supporting mechanism (4), and the supporting mechanism (4) is in an arc-shaped structure, and the zero-degree marking mechanism (5) is connected to the supporting mechanism (4). The identification mechanism (5) is arranged on one side of the support mechanism (4), and the zero-degree identification mechanism (5) is an arc-shaped structure; the support mechanism (4) comprises a base (401) and a magnetic block (405); a groove (403) is provided on the base (401); a fixing rod (6) is arranged at the bottom end of the connecting rod (301); the lower end of the fixing rod (6) is slidably arranged in the groove (403); a pointer (7) is arranged at the lower end of the fixing rod (6); a scale line (404) is also marked on the base (401); the magnetic block (405) is arranged below the base (401), the magnetic block (405) is an arc-shaped structure, and is closely attached to the base (401); the zero-degree identification mechanism (5) comprises a connecting plate (501), the connecting plate (501) is connected to the base (401), the connecting plate (501) is an arc-shaped structure, and a zero-degree identification plate (502) is arranged on the inner arc side surface of the connecting plate (501) to directly serve as the identification.

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