Land fan ring piece and tower tube mounting and positioning device and application method

Abstract

The invention provides a land fan ring piece and tower tube mounting and positioning device and an application method, the device comprises a positioning piece, a reflecting plate, an image acquisition mechanism and an image processing mechanism, the bottom of the positioning piece is provided with first laser distance measuring sensors distributed in an equilateral triangle shape, and the laser emission direction of the first laser distance measuring sensors is parallel to the central axis of a fan ring piece / tower tube; a second laser ranging sensor is arranged on one side of the positioning piece, and the laser emission direction is perpendicular to the central axis of the fan ring piece / tower drum; the reflecting plate is distributed below the positioning piece; and the image processing mechanism is used for processing the image acquired by the image acquisition mechanism and calculating the distance between the center of the three laser points reflected by the three first laser distance measuring sensors on the reflecting plate and the center of the reflecting plate. The central point of the ring piece / tower drum and the central point of the reflecting plate can be displayed in real time, an operator can quickly position conveniently, the positioning and mounting height and inclination of the ring piece / tower drum can be calculated in real time, the workload of the high-altitude operator is reduced, the operation risk is reduced, and the hoisting efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of hoisting, positioning and measurement of hybrid tower rings / towers for land wind turbines, and particularly relates to an installation and positioning device for land wind turbine rings and towers and an application method thereof. Background Art

[0002] In recent years, my country's onshore renewable energy sector has developed rapidly. With technological advancements, wind turbine capacity has gradually increased, and wind turbine heights have become increasingly taller. Wind turbine installation is a critical step in onshore wind power construction, and its quality and efficiency are of particular concern to construction companies.

[0003] Currently, during the hoisting process, operators on a high-altitude construction platform often collaborate with crane operators to precisely position and install the wind turbine ring segments / tower. Operators on the construction platform use a laser level, while ground surveyors use a theodolite, total station, or other similar instrument to measure the horizontality and verticality of the wind turbine ring segments and tower during hoisting to ensure the quality of the wind turbine hoisting. This method of positioning and measuring wind turbine towers requires close coordination between high-altitude and ground-based personnel, resulting in relatively low hoisting efficiency. Therefore, the present invention provides an onshore wind turbine ring segment and tower installation and positioning device and application method to address the above-mentioned issues. Summary of the Invention

[0004] To overcome the problems of the prior art, the present invention provides an onshore wind turbine ring segment and tower installation and positioning device and application method. This device can display the center point of the ring segment / tower and the center point of the foundation ground in real time, facilitating rapid positioning by crane operators. It can also calculate and display the inclination of the ring segment / tower during installation in real time, allowing for rapid adjustments based on real-time data to improve installation efficiency. The device can automatically identify and position the ring segment / tower and display the measured and calculated data, reducing the workload of operators at high altitudes, minimizing operational risks, and improving installation efficiency.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] (1) The present invention provides an onshore wind turbine ring segment and tower installation and positioning device, comprising a positioning member and a reflector; the positioning member is fixedly arranged on the central axis of the wind turbine ring segment / tower, and three first laser ranging sensors are arranged at the bottom of the positioning member, and the three first laser ranging sensors are distributed in an equilateral triangle, and the center of the equilateral triangle is distributed on the central axis of the wind turbine ring segment / tower, and the laser emission direction of the first laser ranging sensor is parallel to the central axis of the wind turbine ring segment / tower; the reflector is distributed below the positioning member, and is used to reflect and display the laser emitted vertically downward by the first laser ranging sensor, and the reflector is in a horizontal state.

[0007] Furthermore, an image acquisition mechanism and an image processing mechanism are also provided; the acquisition range of the image acquisition mechanism can cover the entire reflector, and the image processing mechanism is used to process and display in real time the image obtained by the image acquisition mechanism, and calculate the distance between the center of the three laser points reflected on the reflector by the three first laser ranging sensors and the center of the reflector.

[0008] Furthermore, a second laser ranging sensor is provided on the positioning member, and the laser emission direction of the second laser ranging sensor is perpendicular to the central axis of the wind turbine ring segment / tower, and is used to detect the distance between the positioning member and the wind turbine ring segment / tower, ensuring that the positioning member is located on the central axis of the wind turbine ring segment / tower.

[0009] Furthermore, the second laser ranging sensor is arranged at an end portion of one side of the positioning member.

[0010] Furthermore, the positioning member is disc-shaped, and the reflective plate is a pixel calibration plate.

[0011] Furthermore, the positioning member is fixedly distributed on the central axis of the wind turbine ring segment / tower through at least two groups of fixing components; the fixing component includes a strap, a first fastener and a second fastener; the first fastener is fixed on the positioning member, and the second fastener is fixed on the side wall of the wind turbine ring segment / tower, one end of the strap is fixedly connected to the first fastener, and the other end is fixedly connected to the second fastener.

[0012] Furthermore, the second fastener includes a rope tightener, a U-shaped steel and a plurality of bolts; the U-shaped steel is opened downward and is sleeved on the side wall of the wind turbine ring / tower, and the distance between the two wing plates of the U-shaped steel is greater than the thickness of the side wall of the wind turbine ring / tower; the wing plates of the U-shaped steel are provided with threaded holes with the same number of bolts, and the bolts are threadedly installed in each threaded hole; the rope tightener is fixed on the upper surface of the web of the U-shaped steel, and the binding strap is fixed in the rope tightener.

[0013] Furthermore, a buffer layer is provided on the contact surface between the U-shaped steel and the wind turbine ring / tower; and a buffer gasket is provided on one end of the bolt facing the wind turbine ring / tower.

[0014] Furthermore, the strap is provided with scales.

[0015] (2) The present invention also provides an application method of the above-mentioned onshore wind turbine ring and tower installation and positioning device, comprising:

[0016] Before hoisting the wind turbine ring / tower, fix the positioning piece on the central axis of the wind turbine ring / tower, and the plane where the positioning piece is located is perpendicular to the central axis of the wind turbine ring / tower;

[0017] The second laser ranging sensor obtains the horizontal distance emitted toward the ring wall, and based on this distance, determines whether the positioning piece is located on the central axis of the wind turbine ring segment / tower during installation. Ground staff adjust the position of the positioning piece to ensure that it is located on the central axis of the wind turbine ring segment / tower.

[0018] Place the reflector plate at the center of the wind turbine foundation ground;

[0019] During the hoisting process of the wind turbine ring segment / tower, the image acquisition mechanism obtains the laser point images emitted by the three first laser ranging sensors on the reflective plate, detects the centers of the three laser points, calculates the distance between the centers of the three laser points and the center of the reflective plate, and calculates the horizontal offset distance of the wind turbine ring segment / tower during installation in real time based on the distance; calculates the height of the wind turbine ring segment / tower during hoisting based on the distance measured by the three first laser ranging sensors, and calculates the inclination of the wind turbine ring segment / tower during installation based on the height measured by the three first laser ranging sensors;

[0020] The staff adjusts the wind turbine ring / tower to the designed position according to the horizontal offset distance, hoisting height and inclination. The beneficial effects of the present invention are:

[0021] (1) The present invention provides an onshore wind turbine ring segment and tower installation positioning device and application method, which can display the center point of the ring segment / tower and the center point of the foundation ground in real time, thereby obtaining the horizontal offset distance, facilitating the rapid positioning of the lifting machinery operator, and can calculate the height and inclination of the ring segment / tower positioning installation in real time, quickly adjust it, reduce the workload of high-altitude operators, reduce operational risks to a certain extent, and improve lifting efficiency.

[0022] (2) In the present invention, the positioning member is fixedly distributed on the central axis of the wind turbine ring segment / tower by two sets of fixing components. The fixing components are detachable and can be adapted to wind turbine ring segments / towers of different thicknesses and ring segments / towers of different radii. They are recyclable, have a wide range of applications, and reduce construction costs.

[0023] (3) The present invention has a simple structure, reasonable design, simple operation, and convenient installation and disassembly. After one ring segment / tower is hoisted, the fixing assembly can be quickly disassembled, and the fixing assembly and positioning parts can be placed on the ground using a lifting machine for cyclic installation and utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the positioning member structure of the present invention;

[0026] Figure 3 This is a diagram of the U-shaped steel structure of the present invention;

[0027] Figure 4 This is a diagram showing the connection between the binding strap and the rope tightener of the present invention;

[0028] Figure 5 This is a structural diagram of the lower surface of the positioning member of the present invention;

[0029] Figure 6 is a top view of a second fastener of the present invention;

[0030] Figure 7 It is a flowchart of the image recognition process of the present invention;

[0031] Figure 8 This is a distribution position diagram of the three first laser ranging sensors in Example 2.

[0032] The symbols in the accompanying drawings are:

[0033] 1. Positioning part; 2. Reflecting plate; 3. First laser ranging sensor; 4. Second laser ranging sensor; 5. Binding strap; 6. First fastener; 7. Second fastener; 7-1. U-shaped steel; 7-2. Bolt; 7-3. Rope tightener; 8. Image acquisition mechanism; 9. Image processing mechanism; 10. Wind turbine ring / tower. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example 1

[0036] The embodiment of the present invention provides an onshore wind turbine ring segment and tower installation and positioning device, comprising a positioning member 1 and a reflector 2. The positioning member 1 is disc-shaped, and the reflector 2 is a circular pixel calibration plate.

[0037] like Figures 1 to 6 As shown, the positioning member 1 is fixedly mounted on the central axis of the wind turbine ring / tower, with the plane of the positioning member 1 perpendicular to the central axis. Three first laser ranging sensors 3 are positioned at the bottom of the positioning member 1, arranged in an equilateral triangle with the center of the triangle on the central axis of the wind turbine ring / tower. The laser emission direction of the first laser ranging sensors 3 is parallel to the central axis of the wind turbine ring / tower. A reflector 2 is positioned below the positioning member 1 to reflect and display the laser light emitted vertically downward by the first laser ranging sensors 3. The reflector 2 is in a horizontal position.

[0038] like Figure 5 As shown, a second laser ranging sensor 4 is installed on the positioning member 1. The laser emission direction of the second laser ranging sensor 4 is perpendicular to the central axis of the wind turbine ring segment / tower. It is used to detect the distance between the positioning member 1 and the side wall of the wind turbine ring segment / tower, ensuring that the positioning member 1 is located on the central axis of the wind turbine ring segment / tower. The second laser ranging sensor 4 is installed on one end of the positioning member 1.

[0039] As a further preferred embodiment of the present invention, an image acquisition mechanism and an image processing mechanism are further provided. The image acquisition mechanism is provided on one side of the reflector 2, and its acquisition range can cover the entire reflector 2. The image processing mechanism is used to process and display in real time the images acquired by the image acquisition mechanism, and calculate the distance between the center of the three laser points reflected by the three first laser ranging sensors 3 on the reflector 2 and the center of the reflector 2, thereby helping the hoisting personnel to quickly locate the tower position.

[0040] As a further preferred embodiment of the present invention, the positioning member 1 is fixedly distributed on the central axis of the wind turbine ring / tower through two sets of fixing components, such as Figures 1-2 The fixing assembly includes a strap 5, a first fastener 6, and a second fastener 7. The first fastener 6 is fixed to the positioning member 1, and the second fastener 7 is fixed to the side wall of the wind turbine ring segment / tower. One end of the strap 5 is fixedly connected to the first fastener 6, and the other end is fixedly connected to the second fastener 7. The straps 5 of the two sets of fixing assemblies are distributed in a straight line, coinciding with the diameter of the wind turbine ring segment / tower.

[0041] More specifically, if Figures 3-4 and Figure 6 As shown, the second fastener 7 includes a rope tightener 7-3, a U-shaped steel 7-1, and a plurality of bolts 7-2. The U-shaped steel 7-1 is open downward and is mounted on the side wall of the wind turbine ring segment / tower. The distance between the two wing plates of the U-shaped steel 7-1 is greater than the thickness of the side wall of the wind turbine ring segment / tower. The wing plates of the U-shaped steel 7-1 are provided with threaded holes corresponding to the number of bolts 7-2, and the bolts 7-2 are threadedly installed in each threaded hole. The rope tightener 7-3 (the rope tightener 7-3 is prior art, and the present invention does not describe its structure in detail) is fixed to the upper surface of the web of the U-shaped steel 7-1, and the strap 5 is fixed in the rope tightener 7-3. The strap 5 is provided with a scale. The rope tightener 7-3 can adjust and fix the length of the strap 5, making it easy to adjust the length of the two straps 5 to be consistent, so as to ensure that the disc-shaped positioning member 1 is positioned at the center of the ring segment.

[0042] After the U-shaped steel 7-1 is sleeved onto the sidewall of the wind turbine ring segment / tower, bolts 7-2 are threaded into the threaded holes and tightened until the ends of the bolts 7-2 contact the wind turbine ring segment / tower. Finally, the bolts are secured with nuts to secure the second fastener 7 to the wind turbine ring segment / tower. Furthermore, the second fastener 7 of the present invention is easy to install and remove, can accommodate wind turbine ring segments / towers of varying thicknesses and radii, and is reusable, facilitating construction.

[0043] As a further preferred embodiment of the present invention, a cushioning layer is provided on the contact surface between the U-shaped steel 7-1 and the wind turbine ring / tower, and a cushioning washer is provided on the end of the bolt 7-2 facing the wind turbine ring / tower. The cushioning layer and cushioning washer protect the wind turbine ring / tower, preventing damage to the wind turbine ring / tower caused by the bolt 7-2 and the U-shaped steel 7-1.

[0044] Example 2

[0045] The present invention further provides an application method of the onshore wind turbine ring segment and tower installation and positioning device described in Example 1, comprising:

[0046] Step 1: Before hoisting the wind turbine ring segment / tower, symmetrically install the fixing components on the side walls of the ring segment / tower. Pass the straps 5 of the two sets of fixing components through the rope tightener 7-3 respectively. Operate the rope tightener 7-3 to tighten the straps 5 and fix the positioning piece 1 on the central axis of the wind turbine ring segment / tower. The plane where the positioning piece 1 is located is perpendicular to the central axis of the wind turbine ring segment / tower.

[0047] Step 2: Use the second laser ranging sensor 4 to obtain the horizontal distance emitted to the ring wall, and judge whether the positioning member 1 is located at the center of the wind turbine ring segment / tower based on the distance. If not, the ground staff will adjust the position of the positioning member 1 to ensure that the positioning member 1 is located on the central axis of the wind turbine ring segment / tower.

[0048] Step 3. Place the reflector 2 at the center of the wind turbine foundation ground, ensure that the camera can clearly capture the reflector 2 (pixel positioning plate) and take a picture; measure the actual size of the reflector 2, use OpenCV to detect the pixel size of the reflector 2 in the image, and calculate the scale factor of the pixel size and the actual pixel calibration plate.

[0049] Step 4: During the installation of the wind turbine ring segment / tower, the image acquisition mechanism is used to obtain the laser point images emitted by the three first laser ranging sensors 3 on the reflector 2, detect the centers of the three laser points and display them in real time, detect the center of the reflector 2 and display it in real time, calculate the pixel distance between the centers of the three laser points and the center of the reflector 2, calculate the actual distance between the centers of the three laser points and the center of the reflector 2 according to the scale factor, calculate the horizontal offset distance of the wind turbine ring segment / tower during installation in real time based on the actual distance, and the staff will translate the wind turbine ring segment / tower according to the horizontal offset distance to reduce or eliminate the offset. The height of the wind turbine ring segment / tower during the installation process is calculated based on the distances measured by the three first laser ranging sensors 3, and then the inclination of the wind turbine ring segment / tower during installation is calculated based on the heights measured by the three first laser ranging sensors 3. The inclination is the inclination angle θ between the wind turbine ring segment / tower and the horizontal plane.

[0050] Specifically, the positions of the three first laser distance measuring sensors 3 are set to A, B and C respectively, and the vertical distances measured by the laser distance measuring sensors are used as coordinate points in the Z-axis direction. Figure 8 As shown, the coordinates of the three points can be determined as A(X1, Y1, Z1), B(X2, Y2, Z2), and C(X3, Y3, Z3). The calculation process of the inclination angle θ between the wind turbine ring / tower and the horizontal plane is:

[0051] vector vector

[0052] The normal vector of plane ABC is

[0053] ((Y2-Y1)(Z3-Z1)-(Z2-Z1)(Y3-Y1), (Z2-Z1)(X3-X1)-(X2-X1)(Z3-Z1), (X2-X1)(Y3-Y1)-(Y2-Y1)(X3-X1));

[0054] Vector in the Z direction

[0055]

[0056]

[0057] The staff adjusts the wind turbine ring / tower to a vertical position according to the inclination angle θ between the wind turbine ring / tower and the horizontal plane, completing the installation and positioning of the wind turbine ring / tower. The present invention can reduce the workload of high-altitude workers and speed up the hoisting progress.

[0058] Step 5: After the ring segment / tower is hoisted, the fixing assembly is removed and the positioning piece 1 can be hoisted to the ground using a lifting machine and then installed and reused.

[0059] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should be considered within the scope of protection of the present invention.

Claims

1. A device for installing and positioning a ring segment and a tower of an onshore wind turbine, characterized in that: It comprises a positioning member (1) and a reflecting plate (2); The positioning member (1) is fixedly arranged on the central axis of the wind turbine ring segment / tower, and three first laser ranging sensors (3) are arranged at the bottom of the positioning member (1). The three first laser ranging sensors (3) are distributed in an equilateral triangle, and the center of the equilateral triangle is distributed on the central axis of the wind turbine ring segment / tower, and the laser emission direction of the first laser ranging sensor (3) is parallel to the central axis of the wind turbine ring segment / tower; The reflecting plate (2) is distributed below the positioning member (1) and is used to reflect and display the laser light emitted vertically downward by the first laser distance measuring sensor (3); the reflecting plate (2) is in a horizontal state.

2. The onshore wind turbine ring and tower installation and positioning device according to claim 1, characterized in that: An image acquisition mechanism and an image processing mechanism are also provided; The image acquisition mechanism has an acquisition range that can cover the entire reflective plate (2), and the image processing mechanism is used to process and display in real time the image acquired by the image acquisition mechanism, and to calculate the distance between the center of three laser points reflected by three first laser distance measuring sensors (3) on the reflective plate (2) and the center of the reflective plate (2).

3. The onshore wind turbine ring and tower installation and positioning device according to claim 2, characterized in that: A second laser distance measuring sensor (4) is provided on the positioning member (1), and the laser emission direction of the second laser distance measuring sensor (4) is perpendicular to the central axis of the wind turbine ring segment / tower, and is used to detect the distance between the positioning member (1) and the wind turbine ring segment / tower.

4. The onshore wind turbine ring and tower installation and positioning device according to claim 3, characterized in that: The second laser distance measuring sensor (4) is arranged at one end portion of the positioning member (1).

5. The onshore wind turbine ring and tower installation and positioning device according to claim 1, characterized in that: The positioning member (1) is disc-shaped, and the reflecting plate (2) is a pixel calibration plate.

6. The onshore wind turbine ring and tower installation and positioning device according to claim 1, characterized in that: The positioning member (1) is fixedly distributed on the central axis of the wind turbine ring plate / tower through at least two groups of fixing components; The fixing assembly comprises a strap (5), a first fastener (6) and a second fastener (7); The first fastener (6) is fixed on the positioning member (1), the second fastener (7) is fixed on the wind turbine ring plate / tower side wall, one end of the binding belt (5) is fixedly connected to the first fastener (6), and the other end is fixedly connected to the second fastener (7).

7. The onshore wind turbine ring and tower installation and positioning device according to claim 6, characterized in that: The second fastener (7) comprises a rope tightener (7-3), a U-shaped steel (7-1) and a plurality of bolts (7-2); The U-shaped steel (7-1) is opened downward and is sleeved on the wind turbine ring / tower side wall. The distance between the two wing plates of the U-shaped steel (7-1) is greater than the thickness of the wind turbine ring / tower side wall. The wing plates of the U-shaped steel (7-1) are provided with threaded holes having the same number as the bolts (7-2). The bolts (7-2) are threadedly installed in each threaded hole. The rope tightener (7-3) is arranged on the upper surface of the web of the U-shaped steel (7-1), and the binding belt (5) is fixed in the rope tightener (7-3).

8. The onshore wind turbine ring and tower installation and positioning device according to claim 7, characterized in that: The contact surface between the U-shaped steel (7-1) and the fan ring / tower is provided with a buffer layer; A buffer gasket is provided on one end of the bolt (7-2) facing the wind turbine ring / tower.

9. The onshore wind turbine ring and tower installation and positioning device according to claim 7, characterized in that: The binding strap (5) is provided with scales.

10. The application method of the onshore wind turbine ring segment and tower installation and positioning device according to claim 3, characterized in that: include: Before hoisting, the positioning piece (1) is fixedly arranged on the central axis of the wind turbine ring piece / tower, and the plane where the positioning piece (1) is located is perpendicular to the central axis of the wind turbine ring piece / tower; The distance emitted horizontally toward the ring wall is obtained by a second laser ranging sensor (4), and based on the distance, it is determined whether the positioning member (1) is located on the central axis of the wind turbine ring segment / tower during the installation process. The position of the positioning member (1) is adjusted on the ground by a worker to ensure that the positioning member (1) is located on the central axis of the wind turbine ring segment / tower; Place the reflector plate (2) at the center of the wind turbine foundation ground; During the hoisting process, the image acquisition mechanism obtains the laser point images emitted by the three first laser distance measuring sensors (3) on the reflective plate (2), detects the centers of the three laser points, calculates the distances between the centers of the three laser points and the center of the reflective plate (2), and calculates the horizontal offset distance of the wind turbine ring piece / tower during the installation process in real time based on the distances; calculates the height of the wind turbine ring piece / tower during the hoisting process based on the distances measured by the three first laser distance measuring sensors (3), and calculates the inclination of the wind turbine ring piece / tower during the installation process based on the heights measured by the three first laser distance measuring sensors (3); The staff adjusts the wind turbine ring / tower to the designed position according to the horizontal offset distance, lifting height and inclination.

Images