A mounting tool for an optical fiber load sensor for a fan blade

Abstract

The utility model provides a kind of installation tool of optical fiber load sensor for fan blade, belong to wind power generation technical field, including junction box, the bottom end position of junction box is equipped with sensor fixed seat, spring fixed seat is fixedly connected in junction box and the sensor fixed seat, and compression spring is fixedly connected between two groups spring fixed seat, floating joint and electromagnet are also installed on the junction box, the electromagnet is fixed on the junction box with the floating joint, the utility model is equipped with electromagnet by device, by the magnetic attraction positioning of device and simple operation steps, the complexity of installation process and manual operation are significantly reduced.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to an installation tool for an optical fiber load sensor for wind turbine blades. Background Technology

[0002] The blades of wind turbines are subjected to a variety of complex mechanical loads during operation, such as wind loads and rotational inertial forces. Monitoring these loads is crucial for ensuring the safe operation and life prediction of wind turbines. Traditionally, sensors such as resistance strain gauges and resistance strain meters are used for load monitoring, but they are greatly affected by electromagnetic interference and environmental changes, resulting in limited measurement accuracy and reliability.

[0003] Currently, fiber optic load sensors have become an ideal choice for monitoring wind turbine blade loads due to their advantages such as high sensitivity, resistance to electromagnetic interference, and long-term stability. As more and more wind turbines use fiber optic load sensors, the demand for sensor installation tools is also increasing.

[0004] However, existing technologies for installing fiber optic load sensors have the following drawbacks: complex installation, difficulty in fixing the sensor, and poor measurement reliability. To address these issues, we propose an installation tool for fiber optic load sensors used in wind turbine blades.

[0005] Therefore, existing technologies still need to be improved and enhanced.

[0006] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this application. Utility Model Content

[0007] This invention addresses the shortcomings of existing technologies by providing an installation tool for fiber optic load sensors on wind turbine blades. This tool improves installation efficiency and consistency, reduces operational difficulty and installation costs, and makes the installation process of fiber optic load sensors on wind turbine blades simpler, faster, and more reliable.

[0008] In order to solve the above-mentioned technical problems, the present invention solves the problems of complex installation, difficult sensor fixing, and poor measurement reliability of fiber optic load sensors in the prior art through the following technical solution.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: An installation tool for a fiber optic load sensor for wind turbine blades includes a junction box, a sensor mounting base installed at the bottom of the junction box, spring mounting bases fixedly connected to both the junction box and the sensor mounting base, a compression spring fixedly connected between the two sets of spring mounting bases, a floating connector and an electromagnet installed on the junction box, and the electromagnet being fixed to the junction box through the floating connector.

[0010] Preferably, the junction box is also slidably connected to a support column that is fixedly connected to the sensor mounting base. The end of the support column is provided with a limiting block that is fixedly connected to the junction box, so as to limit the movement of the junction box and ensure that the junction box and the sensor mounting base can only move vertically.

[0011] Preferably, a PTC aluminum shell heating plate is fixedly connected inside the sensor mounting base, and a heater is installed inside the PTC aluminum shell heating plate to facilitate heating of the cured adhesive.

[0012] Preferably, one end of the junction box is provided with a gland, and the other end of the junction box is provided with a heating switch to facilitate the activation of the heating switch.

[0013] Preferably, the spring mounting base is fixedly connected to the junction box and the sensor mounting base respectively by screws, and the junction box and the sensor mounting base can move freely to facilitate the installation and removal of the compression spring.

[0014] Preferably, the electromagnet's wires are integrated into the junction box; the heater's wires are integrated into the junction box; the heating switch is fixed to the junction box; the heater's wires are connected to the heating switch; and the gland is fixed to the junction box, facilitating the neat placement of the wire harness inside the junction box.

[0015] Preferably, the wires integrated in the junction box are connected to the controller through the gland connector, which facilitates the orderly connection of the wire harness to the controller and avoids messy wire harnesses.

[0016] Preferably, the junction box is fixedly connected to a handle to facilitate the installation of the sensor using hand tools.

[0017] Compared with the prior art, the beneficial effects of the embodiments of this disclosure are: 1. Simplified installation process: The device uses electromagnets for magnetic positioning and simple operation steps, which significantly reduces the complexity of the installation process and manual operation.

[0018] 2. Wide range of applications: The clamping and heating devices can be used with a variety of installation adhesives, such as adhesives that require heat curing.

[0019] 3. Improved measurement accuracy: Ensures that the sensor is securely and stably fixed on the blade surface, improves installation consistency, and enhances the accuracy and reliability of measurement data.

[0020] 4. Improved installation efficiency: The standardized installation tool design improves installation efficiency and consistency, and reduces operation difficulty and installation cost. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the connection structure between the installation tool and the controller according to an embodiment of this disclosure; Figure 2 This is a schematic diagram of the installation tool structure according to an embodiment of the present disclosure; Figure 3 This is a front view structural diagram of the installation tool according to an embodiment of the present disclosure; Figure 4 This is a side view of the installation tool according to an embodiment of the present disclosure; Figure 5 This is a schematic diagram of the heating component structure according to an embodiment of the present disclosure.

[0023] Drawing number descriptions: 1. Junction box; 2. Sensor mounting base; 3. Spring mounting base; 4. Compression spring; 5. Floating connector; 6. Electromagnet; 7. Support column; 8. Limit block; 9. Gland head; 10. Handle; 11. PTC aluminum shell heating plate; 12. Heater; 13. Heating switch. Detailed Implementation

[0024] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0025] In the description of embodiments of this disclosure, the term "comprising" and similar terms should be understood as open-ended inclusion, i.e., "including but not limited to". The term "based on" should be understood as "at least partially based on". The term "one embodiment" or "this embodiment" should be understood as "at least one embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below. The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example:

[0027] Please see Figure 1-5 An installation tool for a fiber optic load sensor for wind turbine blades includes a junction box 1. A sensor mounting base 2 is installed at the bottom of the junction box 1. Spring mounting bases 3 are fixedly connected to both the junction box 1 and the sensor mounting base 2. A compression spring 4 is fixedly connected between the two sets of spring mounting bases 3 (as shown in the figure, each spring mounting base 3 includes an upper half mounted on the junction box 1 and a lower half mounted on the sensor mounting base 2, forming a corresponding set facing each other). A floating connector 5 and an electromagnet 6 are also installed on the junction box 1. As shown in the figure, the electromagnet 6 is fixed to the junction box 1 through the floating connector 5. Furthermore, one set of the two sets of spring mounting bases 3 is located closer to the left side in the figure, while the other set is located closer to the right side in the figure, achieving installation balance.

[0028] It should be noted that there are two sets of electromagnets 6, which are installed on both sides of the junction box 1. The two sets of electromagnets 6 can stably drive the junction box 1 to move downward.

[0029] In addition, the junction box 1 is connected to the sensor mounting base 2 via the support column 7, which effectively restricts the movement direction of the junction box 1, making the junction box 1 move only vertically. The design of the limit block 8 facilitates the limitation of the junction box 1, effectively preventing the junction box 1 from detaching from the support column 7.

[0030] In the embodiments of this utility model, please refer to Figure 2 and Figure 4 As shown in the figure, both the sensor mounting base 2 and the junction box 1 are equipped with two sets of spring mounting bases 3, and the two sets of spring mounting bases 3 are symmetrically installed on both sides, which results in two sets of compression springs 4. The arrangement of two sets of compression springs 4 can improve the stability of the junction box 1 when sliding, and facilitate the reset of the junction box 1 after the electromagnet 6 is demagnetized.

[0031] In addition, during use, the spring force of the compression spring 4 gradually decreases due to prolonged use. In some embodiments of this disclosure, the spring fixing seat 3 is fixedly connected to the junction box 1 and the sensor fixing seat 2 by screws. Therefore, when the spring force of the compression spring 4 is damaged, the screws can be removed, making it easy to replace the compression spring 4.

[0032] In the embodiments of this utility model, please refer to Figure 3 and Figure 5 In some embodiments of this disclosure, the sensor mounting base 2 is also provided with a PTC aluminum shell heating plate 11, and a heater 12 is installed inside the PTC aluminum shell heating plate 11. When the adhesive needs to be heated and melted, the heater 12 facilitates the melting of the adhesive.

[0033] Meanwhile, a heating switch 13 is provided on one side of the junction box 1. The heating switch 13 is connected to the heater 12 via a wire. The function of the heating switch 13 facilitates the control of the start-up of the heater 12. In addition, a gland 9 is provided on the other side of the junction box 1. The wires of the heater 12 are integrated inside the junction box 1, so that the wiring harness of the heater 12 is connected to the controller through the gland 9. The controller can be used to set the heating temperature and heating time.

[0034] In some embodiments of this disclosure, the wires of the electromagnet 6 and the heater 12 are integrated in the junction box 1 and connected to the controller through the gland 9. The controller can then effectively control the power supply to and from the electromagnet 6. When installing the sensor, the controller controls the electromagnet 6 to be energized, and then it is attracted to the iron plate preset on the blade. This causes the electromagnet 6 to move the junction box 1 downward. The downward movement of the junction box 1 compresses the compression spring 4, which in turn compresses the sensor mounting base 2 onto the sensor, pressing the sensor onto the blade surface. After the glue has cured and solidified, the controller controls the electromagnet 6 to be de-energized, making it easy to remove the installation tools.

[0035] In the embodiments of this utility model, please refer to Figure 2 and Figure 3 A handle 10 is also installed at the end of the junction box 1. The handle 10 facilitates carrying the installation tools and makes it easy to pick up the installation tools during operation.

[0036] In some embodiments of this disclosure, the sensor is installed using the following steps: 1) Attach two iron plates to the surface of the blade being tested; 2) Apply glue to the sensor mounting surface and attach it to the blade surface; 3) The sensor mounting base 2 holds the sensor in place, and the controller power is turned on. During this process, the positions of the two sets of electromagnets 6 correspond to the positions of the two sets of iron plates, respectively. 4) The controller controls the electromagnet 6 to be energized, so that the electromagnet 6 is magnetized. The electromagnet 6 is fixed to the iron sheet by attraction, pressing the sensor onto the surface of the blade. 5) If the glue needs to be heated, turn on the heating switch 13. The heating temperature and heating time can be set through the controller. 6) After the sensor adhesive has cured, turn off the power and you can remove this installation tool.

[0037] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

[0038] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A mounting tool for an optical fiber load sensor for a wind turbine blade, characterized by, include: A junction box (1) is provided with a sensor mounting base (2) installed at the bottom of the junction box (1). A spring mounting base (3) is fixedly connected to both the junction box (1) and the sensor mounting base (2). A compression spring (4) is fixedly connected between the two sets of spring mounting bases (3). A floating connector (5) and an electromagnet (6) are also installed on the junction box (1). The electromagnet (6) is fixed to the junction box (1) through the floating connector (5).

2. The mounting tool for the fiber optic load sensor for a wind turbine blade according to claim 1, characterized in that: The junction box (1) is also slidably connected to a support column (7), and the end of the support column (7) is provided with a limiting block (8) that is fixedly connected to the junction box (1).

3. The mounting tool for the fiber optic load sensor for a wind turbine blade according to claim 2, characterized in that: The sensor mounting base (2) is internally fixedly connected to a PTC aluminum shell heating plate (11), and a heater (12) is installed inside the PTC aluminum shell heating plate (11).

4. The mounting tool for the fiber optic load sensor for a wind turbine blade according to claim 3, characterized in that: One end of the junction box (1) is provided with a gland (9), and the other end of the junction box (1) is provided with a heating switch (13).

5. The mounting tool for the fiber optic load sensor for a wind turbine blade according to claim 1, characterized by: The spring fixing seat (3) is fixedly connected to the junction box (1) and the sensor fixing seat (2) respectively by screws, and the junction box (1) and the sensor fixing seat (2) can move freely in and out.

6. The mounting tool for the fiber optic load sensor for a wind turbine blade according to claim 1, characterized in that: The wires of the electromagnet (6) are integrated in the junction box (1); the wires of the heater (12) are integrated in the junction box (1); the heating switch (13) is fixed on the junction box (1); the wires of the heater (12) are connected to the heating switch (13); the gland (9) is fixed on the junction box (1).

7. The mounting tool for the fiber optic load sensor for a wind turbine blade according to claim 5, characterized in that: The wires integrated in the junction box (1) are connected to the controller via the gland (9).

8. The mounting tool for the optical fiber load sensor for a fan blade according to claim 1, characterized by: A handle (10) is fixedly connected to the junction box (1).

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