Nacelle wind lidar

Abstract

The utility model discloses a machine cabin formula wind measuring laser radar belongs to wind driven generator component technical field. A machine cabin formula wind measuring laser radar, including wind measuring radar, tripod, wind measuring radar is located on the tripod, and the tripod is installed on the wind driven generator, wind measuring radar includes the emission head, be provided with the steering control mechanism between the tripod and wind measuring radar, the steering control mechanism includes support rod, rotary plate, roller, big gear, pinion, control motor, and support rod is located in the upside of the middle roof of tripod. The utility model provides a machine cabin formula wind measuring laser radar, and control motor can drive pinion to rotate, and pinion drives big gear to rotate through the tooth engagement, and big gear rotates and will drive rotary plate, support rod and wind measuring radar to rotate, make wind measuring radar can be oriented to other angle, like this can measure the wind speed at multiple angle, expand the range of measurement, and the wind speed data that the backstage receives and calculates is more accurate.

Description

Technical Field

[0001] This utility model belongs to the technical field of wind turbine components, specifically relating to a nacelle-type wind measurement lidar. Background Technology

[0002] A wind-measuring lidar is typically installed on the top of the wind turbine nacelle to measure wind speed. The wind-measuring lidar detects wind profile information within a 200-meter range in front of the wind turbine blades by measuring the Doppler frequency shift of the atmospheric echo of the pulsed laser.

[0003] However, a key characteristic of natural wind is its non-uniformity, often resulting in different wind fields in different directions. Most current wind-measuring lidars are fixedly mounted on the top of wind turbine nacelles, leading to a limited wind field range for wind speed measurement. This results in discrepancies between the wind speed calculated by the receiving system and the actual wind speed. Therefore, this application proposes a nacelle-mounted wind-measuring lidar. Utility Model Content

[0004] The purpose of this invention is to provide a nacelle-type wind-measuring lidar to solve the problem mentioned in the background art that most current wind-measuring lidars are fixedly installed on the top of the wind turbine nacelle, which results in a small wind field range for wind speed measurement by the lidar. This leads to a deviation between the wind speed result calculated by the backend receiving the wind speed information and the actual wind speed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a nacelle-type wind-measuring lidar, comprising a wind-measuring radar and a tripod, wherein the wind-measuring radar is located on the tripod, the tripod is mounted on a wind turbine, and the wind-measuring radar includes a transmitter head;

[0006] A steering control mechanism is provided between the tripod and the wind measuring radar. The steering control mechanism includes a support rod, a rotating plate, rollers, a large gear, a small gear, and a control motor. The support rod is located on the upper side of the top plate of the tripod, and the wind measuring radar is located on the upper side of the support rod. A rotating groove that cooperates with the rotating plate is provided in the top plate, and the rollers are in contact with the inner wall of the rotating groove.

[0007] The large gear is mounted on the upper side of the rotating plate. The large gear and the small gear are connected by gear meshing. The small gear is connected to the output shaft of the control motor. The control motor is mounted on the top plate by a motor bracket.

[0008] Preferably, the tripod includes a top plate, an upper support leg, a lower support leg, a slider, an inclined plate, a threaded sleeve, a threaded rod, and a base. The upper support leg is movably connected to the top plate, and a groove that mates with the slider is provided inside the upper support leg. The slider is movably connected to the inclined plate, and the other end of the inclined plate is movably connected to the threaded sleeve. The threaded sleeve is movably connected to the threaded rod.

[0009] Preferably, the lower support leg is movably connected to the base, and the threaded rod is movably connected to the top plate.

[0010] Preferably, there are three support rods, and the three support rods are arranged in a triangular pattern.

[0011] Preferably, the wind measuring radar is equipped with an anti-obstruction component, which includes a sponge pad, a storage box, a movable plate, and a moving mechanism. The sponge pad is inserted into the storage box, the storage box is connected to the movable plate, and the movable plate is mounted on the moving mechanism.

[0012] Preferably, the two ends of the sponge pad are provided with beveled structures.

[0013] Preferably, the storage box is provided with an elastic push plate, which abuts against the hard plate on the back of the sponge pad.

[0014] Preferably, the wind measuring radar is equipped with a vibration base plate.

[0015] Preferably, the vibrating base plate is provided with a plurality of protrusions.

[0016] Preferably, the rotating plate has several grooves on its side, into which the rollers are inserted.

[0017] Beneficial effects:

[0018] I. The present invention provides a cabin-type wind-measuring lidar, in which a control motor drives a small gear to rotate, and the small gear drives a large gear to rotate through gear meshing. When the large gear rotates, it drives the rotating plate, support rod and wind-measuring radar to rotate, allowing the wind-measuring radar to face other angles. This enables the measurement of wind speed at multiple angles, expands the measurement range, and makes the wind speed data received and calculated by the back-end more accurate.

[0019] II. The present invention provides a cabin-type wind-measuring lidar. The moving mechanism can drive the sponge pad, storage box, and moving plate to move along the lens of the wind-measuring lidar. When the sponge pad reaches the position of the lens, it adheres to the lens under the elastic force of the elastic push plate. The sponge pad can push the dust adhering to the lens to one side, so that the dust will not obstruct the transmitter. When the sponge pad reaches the position of the vibrating base plate, the sponge pad adheres to multiple protrusions on the vibrating base plate. The sponge pad is squeezed and deformed multiple times. The dust adhering to the sponge pad will be squeezed off during the squeezing and deformation process, which can complete the work of preventing the lens of the wind-measuring lidar from being blocked. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the cabin-type wind-measuring lidar of this utility model;

[0021] Figure 2This is a schematic diagram of the internal structure of the cabin-type wind-measuring lidar of this utility model;

[0022] Figure 3 This is a schematic diagram of the steering control mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the anti-shading component in this utility model;

[0024] Figure 5 This is one of the internal structural diagrams of the anti-shielding component in this utility model;

[0025] Figure 6 This is the second schematic diagram of the internal structure of the anti-shading component in this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Wind measuring radar; 101. Transmitter head; 2. Tripod; 201. Upper support leg; 202. Lower support leg; 203. Slider; 204. Inclined plate; 205. Threaded sleeve; 206. Threaded rod; 3. Steering control mechanism; 301. Support rod; 302. Rotating plate; 303. Roller; 304. Large gear; 305. Small gear; 306. Control motor; 4. Anti-shielding component; 401. Sponge pad; 402. Storage box; 403. Elastic push plate; 404. Moving plate; 405. Moving mechanism; 406. Vibration base plate. Detailed Implementation

[0028] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0029] like Figures 1-6 As shown in the figure, an embodiment of the present invention provides a cabin-type wind-measuring lidar, including a wind-measuring radar 1 and a tripod 2. The wind-measuring radar 1 is located on the tripod 2, and the tripod 2 is mounted on a wind turbine. The wind-measuring radar 1 on the tripod 2 is used to measure the wind speed of the wind field in the direction in which the wind-measuring radar 1 is facing. The lidar obtains three-dimensional wind field information by emitting a laser beam and measuring the Doppler frequency shift caused by the backscattering of the laser by particles in the atmosphere. The wind-measuring radar 1 includes a transmitter 101. In order to protect the transmitter 101 and other internal components, a transparent plate is usually provided at the wind-measuring radar 1 to shield the transmitter 101.

[0030] To facilitate height adjustment, the tripod 2 includes a top plate, an upper support leg 201, a lower support leg 202, a slider 203, an inclined plate 204, a threaded sleeve 205, a threaded rod 206, and a base. The upper support leg 201 is movably connected to the top plate. The upper support leg 201 has a groove that mates with the slider 203. The slider 203 is movably connected to the inclined plate 204. The other end of the inclined plate 204 is movably connected to the threaded sleeve 205. The threaded sleeve 205 is movably connected to the threaded rod 206. The lower support leg 202 is movably connected to the base. The threaded rod 206 is movably connected to the top plate.

[0031] Rotating the threaded rod 206 causes the threaded sleeve 205 to move up and down. As the threaded sleeve 205 moves, it pulls the slider 203 along the groove in the upper support leg 201 via the inclined plate 204, thereby adjusting the height of the wind measuring radar 1. An easily operable motor or other electrical equipment can be connected to the threaded rod 206, allowing for adjustment of the wind measuring radar 1's height as needed. Combined with the steering control mechanism 3, this increases the actual measurement area for wind speed measurement.

[0032] To measure wind speeds in different directions, a steering control mechanism 3 is installed between the tripod 2 and the wind measuring radar 1. The steering control mechanism 3 includes a support rod 301, a rotating plate 302, rollers 303, a large gear 304, a small gear 305, and a control motor 306. The support rod 301 is located on the upper side of the top plate of the tripod 2, and the wind measuring radar 1 is located on the upper side of the support rod 301. Three support rods 301 are provided, arranged in a triangular pattern. A rotating groove that mates with the rotating plate 302 is provided inside the top plate, and several grooves are provided on the side of the rotating plate 302. The roller 303 is inserted into the groove, and the roller 303 fits against the inner wall of the rotating groove. When the rotating plate 302 rotates, the roller 303 contacts the inner wall of the rotating groove, which can reduce friction and thus reduce energy loss. The large gear 304 is installed on the upper side of the rotating plate 302. The large gear 304 and the small gear 305 are connected by gear meshing. The small gear 305 is connected to the output shaft of the control motor 306. Specifically, the small gear 305 and the output shaft of the control motor 306 are connected by a flat key and a keyway. The control motor 306 is installed on the top plate by a motor bracket.

[0033] The control motor 306 can drive the pinion 305 to rotate. The pinion 305 drives the large gear 304 to rotate through gear meshing. When the large gear 304 rotates, it will drive the rotating plate 302, the support rod 301 and the wind measuring radar 1 to rotate, so that the wind measuring radar 1 can face other angles. This allows the wind speed to be measured at multiple angles, expanding the range of wind speed measurement.

[0034] In order to clean the plate (hereinafter referred to as the lens) that protects the transmitter head 101 of the wind measuring radar 1 and prevent excessive dust from adhering to it, an anti-obstruction component 4 is provided on the wind measuring radar 1. Specifically, the anti-obstruction component 4 includes a sponge pad 401, a storage box 402, a moving plate 404, and a moving mechanism 405. The sponge pad 401 is inserted into the storage box 402. The two ends of the sponge pad 401 are provided with beveled structures to avoid interference with the protruding parts. The storage box 402 is connected to the moving plate 404. The moving plate 404 is mounted on the moving mechanism 405. The moving mechanism 405 can drive the sponge pad 401 to move along the lens.

[0035] To ensure that the sponge pad 401 always fits in close contact with the lens, an elastic push plate 403 is provided inside the storage box 402. The elastic push plate 403 rests against the hard plate on the back of the sponge pad 401. The sponge pad 401 is mounted on the hard plate, and the elastic push plate 403 rests against the hard plate. The wind measuring radar 1 is provided with a vibration base plate 406, which has several protrusions.

[0036] The moving mechanism 405 can adopt a screw and sleeve structure commonly used in the art, or it can adopt a guide rail, moving slider, or electric telescopic rod structure. The moving mechanism 405 can drive the sponge pad 401, storage box 402, and moving plate 404 to move along the lens of the wind measuring radar 1. During the movement, if an obstacle is encountered, the obstacle will squeeze the sponge pad 401, causing the sponge pad 401 to contract. When the sponge pad 401 reaches the position of the lens, it adheres to the lens under the elastic force of the elastic push plate 403. The sponge pad 401 can push the dust adhering to the lens to the side, so that the dust will not block the transmitter head 101. When the sponge pad 401 reaches the position of the vibration base plate 406, the sponge pad 401 adheres to the multiple protrusions on the vibration base plate 406. During the movement, the sponge pad 401 is squeezed and deformed multiple times, and the dust adhering to the sponge pad 401 will be squeezed off during the squeezing and deformation process.

[0037] In summary, this utility model embodiment provides a cabin-type wind-measuring lidar. The control motor 306 can drive the pinion 305 to rotate, and the pinion 305 drives the large gear 304 to rotate through gear meshing. When the large gear 304 rotates, it will drive the rotating plate 302, the support rod 301 and the wind-measuring lidar 1 to rotate, so that the wind-measuring lidar 1 can face other angles. This allows the wind force at multiple angles to be measured, and the measurement range is larger.

[0038] The moving mechanism 405 can drive the sponge pad 401, the storage box 402, and the moving plate 404 to move along the lens of the wind measuring radar 1. When the sponge pad 401 reaches the position of the lens, it adheres to the lens under the elastic force of the elastic push plate 403. The sponge pad 401 can push the dust adhering to the lens to the side, so that the dust will not obstruct the transmitter head 101. When the sponge pad 401 reaches the position of the vibration base plate 406, the sponge pad 401 adheres to the multiple protrusions on the vibration base plate 406. The sponge pad 401 is squeezed and deformed multiple times. The dust adhering to the sponge pad 401 will be squeezed off during the squeezing and deformation process, which can complete the work of preventing the lens of the wind measuring radar 1 from being blocked.

[0039] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A nacelle wind lidar, comprising a wind lidar (1), a tripod (2), the wind lidar (1) being located on the tripod (2), characterized in that, The tripod (2) is mounted on the wind turbine, and the wind measuring radar (1) includes a transmitter (101); A steering control mechanism (3) is provided between the tripod (2) and the wind measuring radar (1). The steering control mechanism (3) includes a support rod (301), a rotating plate (302), a roller (303), a large gear (304), a small gear (305), and a control motor (306). The support rod (301) is located on the upper side of the top plate of the tripod (2), and the wind measuring radar (1) is located on the upper side of the support rod (301). A rotating groove that cooperates with the rotating plate (302) is provided in the top plate, and the roller (303) is in contact with the inner wall of the rotating groove. The large gear (304) is mounted on the upper side of the rotating plate (302). The large gear (304) and the small gear (305) are connected by gear meshing. The small gear (305) is connected to the output shaft of the control motor (306). The control motor (306) is mounted on the top plate by a motor bracket.

2. A machine compartment windfinder lidar as claimed in claim 1, characterized in that The tripod (2) includes a top plate, an upper support leg (201), a lower support leg (202), a slider (203), an inclined plate (204), a threaded sleeve (205), a threaded rod (206), and a base. The upper support leg (201) is movably connected to the top plate. The upper support leg (201) is provided with a groove that cooperates with the slider (203). The slider (203) is movably connected to the inclined plate (204). The other end of the inclined plate (204) is movably connected to the threaded sleeve (205). The threaded sleeve (205) is movably connected to the threaded rod (206).

3. A machine compartment windfinder lidar as claimed in claim 2, characterized in that The lower support leg (202) is movably connected to the base, and the threaded rod (206) is movably connected to the top plate.

4. A machine compartment windfinder lidar as claimed in claim 1, characterized in that There are three support rods (301), and the three support rods (301) are arranged in a triangle.

5. A machine compartment windfinder lidar as claimed in claim 1, characterized in that The wind measuring radar (1) is equipped with an anti-shading component (4), which includes a sponge pad (401), a storage box (402), a moving plate (404), and a moving mechanism (405). The sponge pad (401) is inserted into the storage box (402), the storage box (402) is connected to the moving plate (404), and the moving plate (404) is mounted on the moving mechanism (405).

6. A machine compartment windfinder lidar as claimed in claim 5, characterized in that The sponge pad (401) has beveled structures at both ends.

7. A machine compartment windfinder lidar as claimed in claim 6, characterized in that The storage box (402) is provided with an elastic push plate (403), which abuts against the hard plate on the back of the sponge pad (401).

8. A machine compartment windfinder lidar as claimed in claim 7, characterized in that The wind measuring radar (1) is equipped with a vibration base plate (406).

9. A machine cabin wind lidar as claimed in claim 8, characterized in that The vibrating base plate (406) is provided with several protrusions.

10. A machine compartment windfinder lidar as claimed in claim 1, characterized in that The rotating plate (302) has several grooves on its side, and the rollers (303) are inserted into the grooves.

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