Automatic measuring device for wind power blade static test loading force azimuth angle

Abstract

The utility model discloses a wind power blade static test loading force azimuth angle automatic measuring device, and relates to the wind power blade static test technology field, the wind power blade static test loading force azimuth angle automatic measuring device comprises a device seat assembly and a loading adjusting rack, the top of the device seat assembly is provided with an azimuth angle detection assembly, and one side of the bottom of the device seat assembly is horizontally connected with a guide rail; the loading adjusting frame is installed on the surface of the guide rail in a sliding mode. According to the wind power blade static test loading force azimuth angle automatic measuring device, the guide rail is installed at the bottom of one side of the base and matched with the fixing piles connected to the bottoms of the two ends of the stabilizing frame, so that the loading adjusting frame can horizontally move along the surface of the guide rail and can be flexibly adjusted according to different test requirements, and the test efficiency is improved. Meanwhile, the whole loading adjusting frame can be fixed on the ground by using the fixing piles in cooperation with a bolt structure so as to ensure the structural stability during detection, and a plurality of groups of static test frames can be arranged through the use of the loading adjusting frame, so that the detection of multi-point positions is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of static testing of wind turbine blades, in particular to an automatic measuring device for the azimuth angle of the loading force in the static testing of wind turbine blades. Background Technique

[0002] The static testing of wind turbine blades is a testing method used to determine the structural characteristics of the blades, including hardness data and stress distribution.

[0003] As an important part of wind power generation equipment, the performance and safety of wind turbine blades directly affect the efficiency and reliability of wind power generation. Therefore, it is very necessary to conduct static testing on wind turbine blades. This kind of testing aims to verify the load-bearing capacity of wind turbine blades under static loads. Through specific loading methods and monitoring means, the structural strength, stability of the blades and the stress distribution of the materials are evaluated. The static testing not only includes the loading tests on the blades in different directions, but also includes the monitoring and analysis of the blade deformation and stress distribution to ensure that the blades can work safely and effectively under the design loads;

[0004] In static testing, the azimuth angle of the loading force is an important parameter, which describes the specific direction of the loading force relative to the test piece or structure. The automatic measuring device for the azimuth angle of the loading force in static testing is a device used to automatically measure the azimuth angle of the loading force during the static testing process. This kind of device usually combines a variety of sensors, data acquisition systems and computer analysis software to achieve accurate measurement and recording of the direction of the loading force.

[0005] For the conventional static testing device of wind turbine blades, when detecting the azimuth angle of the loading force on the wind turbine blades, its auxiliary structure is generally directly fixedly connected to the ground. When it is necessary to detect different positions on the surface of the wind turbine blades, the fixity of its structure makes the adjustment relatively inconvenient and the flexibility is relatively limited.

[0006] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and an automatic measuring device for the azimuth angle of the loading force in the static testing of wind turbine blades is proposed. Content of the Utility Model

[0007] The purpose of the utility model is to provide an automatic measuring device for the azimuth angle of the loading force in the static testing of wind turbine blades to solve the problems raised in the above background technique.

[0008] To achieve the above object, the present utility model provides the following technical solutions: An automatic measuring device for the azimuth angle of the static test loading force of a wind turbine blade, comprising a device base assembly and a loading adjustment frame. A azimuth angle detection assembly is installed on the top of the device base assembly, and a guide rail is horizontally connected to one side of the bottom of the device base assembly. The loading adjustment frame is slidably installed on the surface of the guide rail, and a static test frame is connected above the loading adjustment frame. The loading adjustment frame includes a stabilizing frame, fixed piles, a servo motor, a winding wheel, and a metal cable. Fixed piles are installed at the bottoms of the left and right ends of the stabilizing frame, a servo motor is horizontally installed on the top of the stabilizing frame, and a winding wheel is installed at the power output end of the servo motor through a coupling. And a metal cable is wound around the middle surface of the winding wheel.

[0009] Further, the device base assembly includes a base, a slewing mechanism, and a fixed chassis. A slewing mechanism is installed on the top of the device base assembly, and a fixed chassis is installed at the bottom of the base.

[0010] Further, the guide rail is fixedly connected to the fixed chassis, and two groups of guide rails are horizontally symmetrically arranged.

[0011] Further, the azimuth angle detection assembly includes an angle measuring device, a rotating mechanism, a fixed disk, and a counterweight mechanism. A rotating mechanism is installed on one side of the angle measuring device, a fixed disk is connected to the side of the rotating mechanism away from the angle measuring device, and a counterweight mechanism is installed on the side of the angle measuring device away from the rotating mechanism.

[0012] Further, the fixed disk is connected to the power output end of the rotating mechanism through a coupling structure, and the angle measuring device is fixedly installed on the top surface of the slewing mechanism.

[0013] Further, the static test frame includes a main frame body, a force sensor, a displacement sensor, and a connecting ring. A force sensor is installed inside the main frame body, a displacement sensor is installed at the bottom of the static test frame, and a connecting ring is installed at the bottom of the displacement sensor.

[0014] Further, an opening structure for the wind turbine blade to pass through is provided in the middle of the main frame body, and the connecting ring is connected to one end of the metal cable.

[0015] Further, the fixed pile is slidably connected to the guide rail, and the fixed pile is connected and fixed to the ground through a bolt structure. The servo motor and the winding wheel are both fixedly connected to the stabilizing frame.

[0016] The present utility model provides an automatic measuring device for the azimuth angle of the static test loading force of a wind turbine blade, having the following beneficial effects:

[0017] 1. In this utility model, guide rails are horizontally and symmetrically connected to the bottom side of the device seat assembly on the left and right. At the same time, by using the sliding connection between the fixed piles and the guide rails, the entire loading adjustment frame can be translated horizontally along the surface of the guide rails, thereby driving the static test frame connected thereto to move synchronously in the horizontal direction. By using the above structure, it can move synchronously according to the detection requirements of the wind turbine blade, and at the same time, it can maintain the consistency of movement, ensuring the flexibility of the device structure. In addition, by using the fixed piles connected to the bottom ends of the stabilizing frames and cooperating with the bolt structure, the loading adjustment frame adjusted and moved to the specified position can be fixed to the ground, thereby ensuring the structural stability of the entire loading adjustment frame during the test process and avoiding unnecessary structural displacement that may affect the data parameters recorded in the detection.

[0018] 2. In this utility model, since the loading adjustment frame is slidably connected to the guide rails through the fixed piles, several loading adjustment frames can be erected and installed according to the structure of the wind turbine blade to be detected and the detection requirements, and the same number of static test frames can be connected. Thus, static detection can be carried out at several positions on the wind turbine blade, ensuring the flexibility of the device. The use of the guide rails further makes the movement adjustment of the loading adjustment frame sufficiently convenient. In addition, the fixed chassis provided at the bottom of the base can ensure sufficient structural stability and firmness of the entire device seat assembly and the azimuth angle detection assembly connected to the top, avoiding the occurrence of unstable factors in the device structure during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic side view structure diagram of the main body of an automatic measuring device for static test loading force azimuth angle of a wind turbine blade of this utility model;

[0020] Figure 2 It is a schematic structure diagram of the device seat assembly and the angle measuring device of an automatic measuring device for static test loading force azimuth angle of a wind turbine blade of this utility model;

[0021] Figure 3 It is a schematic three-dimensional structure diagram of the loading adjustment frame of an automatic measuring device for static test loading force azimuth angle of a wind turbine blade of this utility model;

[0022] Figure 4 It is a schematic three-dimensional structure diagram of the static test frame of an automatic measuring device for static test loading force azimuth angle of a wind turbine blade of this utility model.

[0023] In the figure: 1. Device base assembly; 101. Base; 102. Rotary mechanism; 103. Fixed chassis; 2. Azimuth angle detection assembly; 201. Angle measuring device; 202. Rotating mechanism; 203. Fixed disk; 204. Counterweight mechanism; 3. Guide rail; 4. Loading adjustment frame; 401. Stabilizing frame; 402. Fixed pile; 403. Servo motor; 404. Winding wheel; 405. Metal cable; 5. Static test frame; 501. Main frame body; 502. Force sensor; 503. Displacement sensor; 504. Connecting ring. Detailed implementation manners

[0024] The following further describes in detail the implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0025] As Figures 1 to 4 shown, a static test loading force azimuth angle automatic measuring device for a wind turbine blade includes a device base assembly 1 and a loading adjustment frame 4. An azimuth angle detection assembly 2 is installed on the top of the device base assembly 1, and a guide rail 3 is horizontally connected to one side of the bottom of the device base assembly 1. The loading adjustment frame 4 is slidably installed on the surface of the guide rail 3, and a static test frame 5 is connected above the loading adjustment frame 4. The loading adjustment frame 4 includes a stabilizing frame 401, a fixed pile 402, a servo motor 403, a winding wheel 404 and a metal cable 405. Fixed piles 402 are installed at the bottoms of the left and right ends of the stabilizing frame 401, and a servo motor 403 is horizontally installed on the top of the stabilizing frame 401. Moreover, a winding wheel 404 is installed at the power output end of the servo motor 403 through a coupling, and a metal cable 405 is wound around the middle surface of the winding wheel 404. The fixed pile 402 is slidably connected with the guide rail 3, and the fixed pile 402 is connected and fixed to the ground through a bolt structure. The servo motor 403 and the winding wheel 404 are both fixedly connected with the stabilizing frame 401. By using the sliding connection between the fixed pile 402 and the guide rail 3, the entire loading adjustment frame 4 can be horizontally translated and adjusted along the surface of the guide rail 3, so as to drive the connected static test frame 5 to move synchronously in the horizontal direction.

[0026] As Figures 1 to 4As shown in the figure, the device seat assembly 1 includes a base 101, a slewing mechanism 102 and a fixed chassis 103. The slewing mechanism 102 is installed at the top of the device seat assembly 1, and the fixed chassis 103 is installed at the bottom of the base 101. The guide rail 3 is fixedly connected to the fixed chassis 103, and two groups of guide rails 3 are horizontally symmetrically arranged. The azimuth angle detection assembly 2 includes an angle measuring device 201, a rotating mechanism 202, a fixed disk 203 and a counterweight mechanism 204. The rotating mechanism 202 is installed on one side of the angle measuring device 201, and the fixed disk 203 is connected to the side of the rotating mechanism 202 away from the angle measuring device 201. Moreover, the counterweight mechanism 204 is installed on the side of the angle measuring device 201 away from the rotating mechanism 202. The fixed disk 203 is connected to the power output end of the rotating mechanism 202 through a coupling structure. The angle measuring device 201 is fixedly installed on the top surface of the slewing mechanism 102. The static test stand 5 includes a main frame body 501, a force sensor 502, a displacement sensor 503 and a connecting ring 504. The force sensor 502 is installed inside the main frame body 501, and the displacement sensor 503 is installed at the bottom of the static test stand 5. Moreover, the connecting ring 504 is installed at the bottom of the displacement sensor 503. An opening structure for the wind turbine blade to pass through is provided in the middle of the main frame body 501. The connecting ring 504 is connected to one end of the metal cable 405. Since the loading adjustment frame 4 is slidably connected to the guide rail 3 through the fixed pile 402, several loading adjustment frames 4 can be erected and installed and the same number of static test stands 5 can be connected according to the structure of the wind turbine blade to be detected and the detection requirements, so that static detection can be carried out on several positions of the wind turbine blade at multiple different positions.

[0027] In summary, as Figures 1 to 4 shown in the figure, when using the automatic measurement device for the azimuth angle of the static test loading force of the wind turbine blade, before using the device, the entire device seat assembly 1 can be fixedly connected to the ground by using the bolt structure and the fixed chassis 103 at the bottom of the base 101 to ensure the structural stability of the azimuth angle detection assembly 2 installed on its top. With the counterweight mechanism 204 on one side of the angle measuring device 201, the overall structural stability after installing the wind turbine blade on one side of the fixed disk 203 is ensured;

[0028] After the wind turbine blade is fixedly connected to the rotating mechanism 202 by using the fixed disk 203, an appropriate number of loading adjustment frames 4 and static test stands 5 can be prepared according to the detection requirements, and the loading adjustment frames 4 can be installed on the surface of the guide rail 3 one by one, and then they can be moved to the appropriate positions by using the sliding connection between the fixed pile 402 and the guide rail 3;

[0029] During this process, the wind turbine blade is passed through the inner middle of the main frame body 501, and its surface is brought into contact with the force sensor 502. Then, after the prepared loading adjustment frame 4 and the static test frame 5 are connected to the wind turbine blade, the entire loading adjustment frame 4 is fixed to the ground using the bolt structure in cooperation with the fixed pile 402. Then, driven by the structure of the servo motor 403, the winding wheel 404 connected to its power output end starts to rotate horizontally axially, thereby winding the metal cable 405 wound around the surface. As the metal cable 405 is wound, the other end thereof is connected to the connection ring 504 at the bottom of the displacement sensor 503, thereby pulling the wind turbine blade passing through the middle of the static test frame 5. In cooperation with the operation of the force sensor 502 and the displacement sensor 503, a test of the applied force is carried out on it;

[0030] Meanwhile, the rotating mechanism 202 drives the fixed disk 203 to rotate axially by a certain angle, causing the wind turbine blade connected to the fixed disk 203 to rotate synchronously. And the slewing mechanism 102 at the top of the base 101 drives the entire azimuth detection assembly 2 to rotate vertically axially by a certain angle. With the assistance of the angle measuring device 201, the azimuth of the applied force of the wind turbine blade during the test is measured, and the change in the direction of the applied force is recorded in real time and converted into analyzable data.

[0031] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles of the present invention and its practical application, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for a specific purpose.

Claims

1. A device for automatically measuring the azimuth angle of a static test load force of a wind turbine blade, comprising a device seat assembly (1) and a load adjustment frame (4), characterized in that: The top of the device seat assembly (1) is equipped with an azimuth detection assembly (2), and a guide rail (3) is horizontally connected to one side of the bottom of the device seat assembly (1). The loading adjustment frame (4) is slidably mounted on the surface of the guide rail (3), and a static test frame (5) is connected above the loading adjustment frame (4). The loading adjustment frame (4) comprises a stabilizing frame (401), a fixed pile (402), a servo motor (403), a winding wheel (404) and a metal cable (405). The bottoms of the left and right ends of the stabilizing frame (401) are equipped with fixed piles (402), and the top of the stabilizing frame (401) is equipped with a servo motor (403) horizontally, and a winding wheel (404) is mounted on the power output end of the servo motor (403) through a coupling, and a metal cable (405) is wound around the middle surface of the winding wheel (404).

2. The device for automatically measuring the azimuth angle of a static load force test of a wind turbine blade according to claim 1, characterized in that: The device base assembly (1) comprises a base (101), a slewing mechanism (102) and a fixed chassis (103); the slewing mechanism (102) is installed on the top of the device base assembly (1), and the fixed chassis (103) is installed on the bottom of the base (101).

3. The automatic measuring device for the azimuth angle of the static load force test of a wind turbine blade according to claim 2 is characterized in that: The guide rails (3) are fixedly connected to the fixed chassis (103), and two groups of guide rails (3) are horizontally symmetrically arranged.

4. The automatic measuring device for the azimuth angle of the static test load force of a wind turbine blade according to claim 2 is characterized in that: The azimuth angle detection assembly (2) comprises an angle measuring device (201), a rotating mechanism (202), a fixed plate (203) and a counterweight mechanism (204); the rotating mechanism (202) is installed on one side of the angle measuring device (201), and the fixed plate (203) is connected to the side of the rotating mechanism (202) away from the angle measuring device (201), and the counterweight mechanism (204) is installed on the side of the angle measuring device (201) away from the rotating mechanism (202).

5. The device for automatically measuring the azimuth angle of loading force in static testing of wind turbine blades according to claim 4 is characterized in that: The fixed disk (203) is connected to the power output end of the rotating mechanism (202) via a coupling structure, and the angle measuring device (201) is fixedly mounted on the top surface of the rotating mechanism (102).

6. The device for automatically measuring the azimuth angle of loading force in static testing of wind turbine blades according to claim 1, characterized in that: The static test frame (5) comprises a main frame (501), a force sensor (502), a displacement sensor (503) and a connecting ring (504); the force sensor (502) is installed inside the main frame (501), the displacement sensor (503) is installed at the bottom of the static test frame (5), and the connecting ring (504) is installed at the bottom of the displacement sensor (503).

7. The automatic measurement device for the azimuth angle of the static test load force of a wind turbine blade according to claim 6, characterized in that: An opening structure for wind turbine blades to pass through is provided in the middle of the main frame (501), and the connecting ring (504) is connected to one end of a metal cable (405).

8. The device for automatically measuring the azimuth angle of loading force in static testing of wind turbine blades according to claim 1, characterized in that: The fixing pile (402) is slidably connected to the guide rail (3), and the fixing pile (402) is connected and fixed to the ground via a bolt structure. The servo motor (403) and the winding wheel (404) are both fixedly connected to the stabilizing frame (401).

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