Linear laser projector for laying and positioning offshore wind power blade

By using a linear laser projector and position adjustment device for offshore wind turbine blade installation and positioning, the problems of low accuracy and poor efficiency in traditional methods have been solved, achieving high-precision and rapid blade positioning, which meets the production needs of large-scale and deep-sea wind turbine blades.

CN223966807UActive Publication Date: 2026-03-03ZHONGSHAN INST OF CHANGCHUN UNIV OF SCI & TECH
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Patent Information

Application Number
CN202520752607.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-03-03
Estimated Expiration
2035-04-21

AI Technical Summary

Technical Problem

Traditional methods for positioning offshore wind turbine blades suffer from low accuracy and poor efficiency, making it difficult to meet the high-precision positioning requirements of large and deep-sea wind turbine blades, and also unable to adapt to the positioning requirements of molds of different sizes and curvatures.

Method used

A linear laser projector combined with a position adjustment device is used to ensure that the laser beam emitted by the projector is accurately projected onto the blade positioning area by adjusting the position and attitude of the laser projector. The device includes components such as a slide rail mounting plate, a lateral movement assembly, a swing gimbal, a rotation gimbal, and a position and attitude sensor to ensure accurate beam projection.

Benefits of technology

It improves the positioning accuracy and efficiency of blade installation, ensures the quality of blade forming, adapts to the positioning requirements of molds of different sizes and curvatures, and reduces the time for manual measurement and adjustment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of blade paving and positioning, in particular to a linear laser projector for paving and positioning an offshore wind power blade, which comprises a cross beam; the position adjusting device is connected with the cross beam; the position adjusting device can move along the X axis, rotate around the Y axis and swing around the Z axis in a pitching mode. The laser projector is connected with the position adjusting device; the position adjusting device is used for adjusting the position and the posture of the laser projector, so that a light beam emitted by the laser projector enters a blade positioning area; any two of the X axis, the Y axis and the Z axis are perpendicular to each other. The Y-axis is perpendicular to the top face of the beam, and the X-axis and the Z-axis are both parallel to the top face of the beam. The device has the advantages that high-precision linear laser beams are emitted through the laser device, the lens and the conscope via the light transmitting opening, accurate positioning reference is provided for paving of the wind power blade, and the accuracy of the mounting position and angle of the blade is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of blade installation and positioning technology, and in particular to a linear laser projector for offshore wind turbine blade installation and positioning. Background Technology

[0002] Offshore wind power, as an important component of clean energy, has developed rapidly in recent years. With the increasing size and depth of wind turbines, the size and complexity of wind turbine blades are constantly increasing, placing higher demands on manufacturing precision. In the production process of wind turbine blades, installation and positioning is one of the key steps. Its purpose is to precisely lay materials such as fiber cloth and core material onto the mold according to design requirements. Traditional methods mainly rely on manual marking or simple laser pointers for positioning, which suffers from low precision, poor efficiency, and insufficient adaptability. For example, manual marking is easily affected by the operator's skill level, making it difficult to guarantee positioning accuracy, while the light spot of a simple laser pointer is uneven and cannot meet the high-precision installation requirements. Furthermore, traditional methods are inefficient, difficult to adapt to the needs of large-scale production, and cannot meet the positioning requirements of molds with different sizes and curvatures. Utility Model Content

[0003] In view of this, the present invention aims to provide a linear laser projector for positioning offshore wind turbine blades. By adjusting the position and attitude of the laser projector through a position adjustment device, the laser beam emitted by the laser projector is incident on the blade positioning area, which effectively solves the technical problem of wind turbine blade layup positioning, shortens the blade component positioning time, improves positioning accuracy, and ensures the forming quality of wind turbine blades.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A linear laser projector for positioning offshore wind turbine blades includes: a crossbeam; a position adjustment device connected to the crossbeam; the position adjustment device can move along the X-axis, rotate around the Y-axis, and pitch around the Z-axis; a laser projector connected to the position adjustment device; the position adjustment device adjusts the position and attitude of the laser projector so that the beam emitted by the laser projector is incident on the blade positioning area; wherein, any two of the X-axis, Y-axis, and Z-axis are perpendicular to each other; the Y-axis is perpendicular to the top surface of the crossbeam, and both the X-axis and Z-axis are parallel to the top surface of the crossbeam.

[0005] Furthermore, the position adjustment device includes a slide rail mounting plate, a crossbeam connecting assembly, a lateral movement assembly, a swing gimbal, a rotary gimbal, a posture sensor, and a projector connecting plate; the slide rail mounting plate is connected to the crossbeam via the crossbeam connecting assembly; the lateral movement assembly is mounted on the slide rail mounting plate; the swing gimbal is connected to the lateral movement assembly; the rotary gimbal is connected to the swing gimbal; the projector connecting plate is connected to the rotary gimbal; and the posture sensor is mounted on the projector connecting plate.

[0006] Furthermore, the transverse movement assembly includes a motor, a lead screw assembly, and two linear guides; the two linear guides are spaced apart on the slide rail mounting plate; the fixed end of the motor is connected to the slide rail mounting plate, the output end of the motor is connected to one end of the lead screw assembly, the other end of the lead screw assembly is connected to the slide rail mounting plate, and the lead screw assembly is located between the two linear guides; the swing gimbal is connected to the lead screw nut of the lead screw assembly and the sliders of the two linear guides.

[0007] Furthermore, the laser projector includes a heat sink, a housing, a laser assembly, a lens assembly, and a conical lens assembly; the heat sink is connected to a position adjustment device; the laser assembly, the lens assembly, and the conical lens assembly are sequentially arranged on the heat sink along the optical path; the housing is connected to the heat sink and covers the laser assembly, the lens assembly, and the conical lens assembly, and the housing has a light-transmitting opening on the light-emitting side corresponding to the conical lens assembly.

[0008] Furthermore, the outer casing is also provided with a window that covers the light-transmitting opening and is connected to the outer casing.

[0009] Furthermore, the lens assembly includes a lens, a lens mount, and a slide motor; the slide motor is connected to a heat sink, and the lens is connected to the slide motor via the lens mount.

[0010] Furthermore, the conical lens assembly includes a conical lens, an adjustment block, and an adjustment frame. The adjustment frame is connected to the heat sink via the adjustment block, and the conical lens is mounted on the adjustment frame.

[0011] Furthermore, the laser assembly includes a laser, a pad, a cooling chip, and a thermistor; the cooling chip is connected to a heat sink, and the laser is connected to the cooling chip via the pad; the thermistor is connected to the pad.

[0012] Furthermore, the laser projector also includes a fan and multiple feedthrough capacitors; the fan and multiple feedthrough capacitors are both mounted on a heat sink and located on opposite sides of the heat sink; the fan is located below the laser assembly, and the multiple feedthrough capacitors are located close to the lens assembly.

[0013] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0014] 1) Using a laser, lens and conical mirror assembly, a high-precision linear laser beam is projected through the light-transmitting port to provide a precise positioning reference for the installation of wind turbine blades, ensuring the accuracy of the installation position and angle.

[0015] 2) Adjust the position and attitude of the laser projector through the position adjustment device so that the beam emitted by the laser projector is accurately incident on the blade positioning area.

[0016] 3) The laser projector uses heat sinks, semiconductor cooling chips and fans to work together to control the operating temperature of the laser projector, ensuring that the laser, lens assembly and conical lens assembly operate in the optimal temperature range, so that it can adapt to complex industrial environments such as high temperature and high dust, and maintain long-term stable operation.

[0017] 4) Linear laser projectors can improve the paving efficiency of operators. Operators can quickly align the blades, reduce the time spent on manual measurement and adjustment, and significantly improve paving efficiency. Attached Figure Description

[0018] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0019] Figure 1 This is a structural schematic diagram of a linear laser projector for positioning offshore wind turbine blades according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the position adjustment device provided according to an embodiment of the present utility model from one perspective;

[0021] Figure 3 This is a structural schematic diagram of the position adjustment device provided according to an embodiment of the present utility model from another perspective;

[0022] Figure 4 This is a structural schematic diagram of a laser projector provided according to an embodiment of the present utility model.

[0023] The reference numerals in the attached drawings include: 1. Crossbeam; 2. Position adjustment device; 21. Slide rail mounting plate; 22. Crossbeam connecting assembly; 221. First connecting plate; 222. I-beam buckle; 23. Lateral movement assembly; 231. Motor; 232. Lead screw assembly; 233. Linear guide rail; 24. Swinging gimbal; 25. Rotating gimbal; 26. Posture sensor; 27. Projector connecting plate; 28. Connecting seat; 3. Laser projector; 31. Heat sink; 32. Housing; 33. Laser assembly; 331. Laser; 332. Pad; 333. Semiconductor cooling chip; 334. Thermistor; 34. Lens assembly; 341. Lens; 342. Lens mount; 343. Slide table motor; 35. Conical mirror assembly; 351. Conical mirror; 352. Adjusting block; 353. Adjusting frame; 36. Fan; 37. Through-core capacitor; 38. Window plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and do not constitute a limitation thereof.

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] like Figures 1 to 4 As shown in the figure, this utility model provides a linear laser projector for positioning offshore wind turbine blades, comprising: a crossbeam 1, a position adjustment device 2, and a laser projector 3. In this embodiment, the crossbeam 1 is an I-beam structure.

[0030] The position adjustment device 2 is connected to the crossbeam 1. The position adjustment device 2 can move along the X-axis, rotate around the Y-axis, and pitch around the Z-axis. The laser projector 3 is connected to the position adjustment device 2, and the position adjustment device 2 adjusts the position and attitude of the laser projector 3 so that the beam emitted by the laser projector 3 is incident on the blade positioning area.

[0031] In this embodiment, any two of the X, Y, and Z axes are perpendicular to each other; the Y axis is perpendicular to the bottom surface of the beam 1, and both the X and Z axes are parallel to the bottom surface of the beam 1. In this embodiment, the X axis is parallel to the length direction of the beam 1.

[0032] The position adjustment device 2 includes a slide rail mounting plate 21, a crossbeam connecting assembly 22, a horizontal movement assembly 23, a swing gimbal 24, a rotary gimbal 25, a pose sensor 26, and a projector connection plate 27. The slide rail mounting plate 21 is connected to the crossbeam 1 via the crossbeam connecting assembly 22. The swing gimbal 24 is connected to the horizontal movement assembly 23, the rotary gimbal 25 is connected to the swing gimbal 24, the projector connection plate 27 is connected to the rotary gimbal 25, and the pose sensor 26 is mounted on the projector connection plate 27.

[0033] The crossbeam connecting assembly 22 includes a first connecting plate 221 and an I-beam buckle 222. One end of the I-beam buckle 222 is connected to the crossbeam 1, and the other end is connected to the first connecting plate 221. The first connecting plate 221 is connected to the slide rail mounting plate 21.

[0034] The lateral movement assembly 23 is mounted on the slide rail mounting plate 21. The lateral movement assembly 23 includes a motor 231, a lead screw assembly 232, and two linear guide rails 233. The two linear guide rails 233 are spaced apart on the slide rail mounting plate 21. The fixed end of the motor 231 is connected to the slide rail mounting plate 21, and the output end of the motor 231 is connected to one end of the lead screw assembly 232. The other end of the lead screw assembly 232 is rotatably connected to the slide rail mounting plate 21 via a bearing. The lead screw assembly 232 is located between the two linear guide rails 233. The swing gimbal 24 is connected to the lead screw nut of the lead screw assembly 232 and the sliders of the two linear guide rails 233 via a connecting seat 28.

[0035] Motor 231 drives the swing gimbal 24, the rotation gimbal 25, the posture sensor 26, and the projector connection plate 27 through the lead screw assembly 232, thereby moving the laser projector 3 along the length direction (X-axis) of the crossbeam 1 to achieve horizontal position adjustment of the laser projector 3.

[0036] The oscillating gimbal 24 drives the laser projector 3 to move through the rotating gimbal 25 and the projector connection plate 27. The oscillating gimbal 24 oscillates around the Z-axis to adjust the pitch angle of the laser projector 3, and the rotating gimbal 25 rotates around the Y-axis to adjust the horizontal attitude of the laser projector 3, thus completing the attitude adjustment of the laser projector 3.

[0037] The pose sensor 26 can monitor the position and attitude of the laser projector 3 in real time, and adjust the position and attitude of the laser projector 3 through the horizontal movement component 23, the swing gimbal 24 and the rotation gimbal 25 to ensure the stability of the projected image.

[0038] The 24-inch oscillating gimbal is a purchased component; manufacturer: Beijing Padway Instruments Co., Ltd.; model: PT-GD303.

[0039] The rotating gimbal 25 is a purchased part, manufactured by Beijing Padway Instruments Co., Ltd., model: PX110-100.

[0040] The pose sensor 26 is a purchased component, manufactured by Analog Devices, model ADXL345.

[0041] The laser projector 3 includes a heat sink 31, a housing 32, a laser assembly 33, a lens assembly 34, a conical lens assembly 35, a fan 36, and multiple through-core capacitors 37. The heat sink 31 is connected to the projector connection plate 27 of the position adjustment device 2. The laser assembly 33, lens assembly 34, and conical lens assembly 35 are sequentially arranged on the heat sink 31 along the optical path. The housing 32 is connected to the heat sink 31 and covers the laser assembly 33, lens assembly 34, and conical lens assembly 35. The housing 32 has a light-transmitting opening on the light-emitting side corresponding to the conical lens assembly 35. The housing 32 also has a window 38, which covers the light-transmitting opening and is connected to the housing 32. The window 38 is a light-transmitting device, while the housing 32 is an opaque device.

[0042] The fan 36 and multiple feedthrough capacitors 37 are both mounted on the heat sink 31 and located on opposite sides of the heat sink 31. The fan 36 is located below the laser assembly 33, and the multiple feedthrough capacitors 37 are located close to the lens assembly 34. The feedthrough capacitors 37 are used to filter out high-frequency noise and interference signals, ensuring the stability and signal integrity of the laser projector 3.

[0043] The laser assembly 33 includes a laser 331, a pad 332, a thermoelectric cooler 333, and a thermistor 334. The thermoelectric cooler 333 is connected to a heat sink 31, and the laser 331 is connected to the thermoelectric cooler 333 via the pad 332. The thermistor 334 is connected to the pad 332. The thermistor 334 monitors the temperature changes of the laser projector 3 in real time.

[0044] The heat sink 31, the semiconductor cooling chip 333, and the fan 36 work together to effectively control the temperature of the laser projector 3, ensuring that the laser 331, the lens assembly 34, and the conical mirror assembly 35 operate within the optimal temperature range.

[0045] The lens assembly 34 includes a lens 341, a lens mount 342, and a slide motor 343. The slide motor 343 is connected to the heat sink 31, and the lens 341 is connected to the slide motor 343 through the lens mount 342.

[0046] The conical mirror assembly 35 includes a conical mirror 351, an adjusting block 352, and an adjusting frame 353. The adjusting frame 353 is connected to the heat sink 31 via the adjusting block 352, and the conical mirror 351 is mounted on the adjusting frame 353. The angles of the conical mirror 351 around the X and Y axes are adjusted by the adjusting frame 353 to bring it close to an ideal state.

[0047] The adjustable frame 353 is a purchased part, manufactured by Guangzhou Hengyang Electronic Technology Co., Ltd., model: MTMSO-1R.

[0048] Laser 331 emits a laser beam onto lens 341. The distance between lens 341 and laser 331 is adjusted by slide motor 343 to focus and collimate the beam. The collimated beam is then incident on conical mirror 351. By adjusting the mirror frame 353, conical mirror 351 converts the laser beam into a ring beam. The ring beam is emitted through window 38 and illuminates the blade positioning area to form a straight reference.

[0049] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A linear laser projector for positioning and paving offshore wind turbine blades, characterized in that, include: beam; A position adjustment device is connected to the crossbeam; the position adjustment device can move along the X-axis, rotate around the Y-axis, and pitch around the Z-axis. A laser projector, wherein the laser projector is connected to the position adjustment device; The position adjustment device adjusts the position and attitude of the laser projector so that the beam emitted by the laser projector is incident on the blade positioning area; In this configuration, any two of the X-axis, Y-axis, and Z-axis are perpendicular to each other; the Y-axis is perpendicular to the bottom surface of the beam, and both the X-axis and Z-axis are parallel to the bottom surface of the beam.

2. The linear laser projector for positioning offshore wind turbine blades according to claim 1, characterized in that, The position adjustment device includes a slide rail mounting plate, a crossbeam connecting assembly, a lateral movement assembly, a swing gimbal, a rotating gimbal, a posture sensor, and a projector connecting plate. The slide rail mounting plate is connected to the crossbeam via a crossbeam connecting assembly; the lateral movement assembly is mounted on the slide rail mounting plate; the swing gimbal is connected to the lateral movement assembly; the rotating gimbal is connected to the swing gimbal; the projector connecting plate is connected to the rotating gimbal; and the posture sensor is mounted on the projector connecting plate.

3. The linear laser projector for positioning offshore wind turbine blades according to claim 2, characterized in that, The traverse assembly includes a motor, a lead screw assembly, and two linear guides; Two linear guide rails are spaced apart on the slide rail mounting plate; the fixed end of the motor is connected to the slide rail mounting plate, the output end of the motor is connected to one end of the lead screw assembly, the other end of the lead screw assembly is rotatably connected to the slide rail mounting plate through a bearing, and the lead screw assembly is located between the two linear guide rails; the swing gimbal is connected to the lead screw assembly's nut and the sliders of the two linear guide rails.

4. The linear laser projector for positioning offshore wind turbine blades according to claim 1, characterized in that, The laser projector includes a heat sink, a housing, a laser assembly, a lens assembly, and a conical lens assembly; The heat sink is connected to the position adjustment device; the laser assembly, the lens assembly, and the conical mirror assembly are sequentially arranged on the heat sink along the optical path; The outer casing is connected to the heat sink and covers the laser assembly, lens assembly and conical mirror assembly. The outer casing has a light-transmitting opening on the light-emitting side of the conical mirror assembly.

5. The linear laser projector for positioning offshore wind turbine blades according to claim 4, characterized in that, The outer casing is also provided with a window panel that covers the light-transmitting opening and is connected to the outer casing.

6. The linear laser projector for positioning offshore wind turbine blades according to claim 4, characterized in that, The lens assembly includes a lens, a lens mount, and a slide motor; the slide motor is connected to the heat sink, and the lens is connected to the slide motor via the lens mount.

7. The linear laser projector for positioning offshore wind turbine blades according to claim 4, characterized in that, The conical mirror assembly includes a conical mirror, an adjustment block, and an adjustment frame. The adjustment frame is connected to the heat sink via the adjustment block, and the conical mirror is mounted on the adjustment frame.

8. The linear laser projector for positioning offshore wind turbine blades according to claim 4, characterized in that, The laser assembly includes a laser, a pad, a cooling chip, and a thermistor; the cooling chip is connected to the heat sink, and the laser is connected to the cooling chip via the pad; the thermistor is connected to the pad.

9. The linear laser projector for positioning offshore wind turbine blades according to claim 4, characterized in that, The laser projector also includes a fan and multiple feedthrough capacitors; the fan and multiple feedthrough capacitors are both disposed on the heat sink and are located on opposite sides of the heat sink; the fan is located below the laser assembly, and the multiple feedthrough capacitors are disposed close to the lens assembly.