Inspection equipment for wind power blade

Abstract

An embodiment of the utility model provides an inspection device for a wind power blade, which comprises a host and a visiting mechanism, the host is connected with the visiting mechanism, the visiting mechanism comprises a plurality of sections of telescopic rods, a visiting device is mounted at an extending end of the plurality of sections of telescopic rods, and the visiting device is in communication connection with the host. Therefore, the host can control the visiting device. The multi-section telescopic rod comprises a center rod, a plurality of layers of sleeves are arranged outside the center rod in a sleeving mode, one end of the center rod serves as the extending end of the multi-section telescopic rod, and the other end of the center rod is inserted into the sleeve on the outer layer of the center rod. At least one of the extending end of the multi-section telescopic rod and the end portion, close to the extending end of the multi-section telescopic rod, of the sleeve is provided with a supporting mechanism. According to the inspection equipment for the wind power blade provided by the utility model, the inspection device can reach the interior of the blade to inspect and inspect by virtue of the telescopic combination of the multiple sections of telescopic rods, and the position of the inspection device can be freely adjusted in the axial direction of the blade by utilizing the multiple sections of telescopic rods.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind turbine blade inspection and repair, and in particular relates to an inspection device for wind turbine blades. Background Art

[0002] Blade inspection is a crucial task during wind turbine equipment maintenance. Currently, manual inspection is the primary method for blade inspection, allowing inspectors to inspect the inner surface of the blades, which is intuitive and efficient. However, due to the variable cross-section of blades, the space gradually decreases toward the tip, making it difficult for inspectors to reach the tip. Even when they can reach, they risk becoming stuck, resulting in incomplete inspection. Inspection of components in areas such as the blade segment and tip is particularly challenging.

[0003] Several solutions have emerged to address these issues. The most popular solution is to use a remote-controlled vehicle. Leveraging its compact size, it can access difficult-to-reach areas inside the blade for video inspection. However, this vehicle can only move at the bottom, preventing inspection of the upper blade area. Inspecting this area requires flipping the blade, increasing workload and costs. Without flipping the blade, the vehicle must be equipped with high-performance video equipment to achieve optimal inspection results, which is also costly. Others have proposed using a crawling vehicle with suction cups to provide a 360-degree inspection of the blade interior. However, dust and other impurities often cling to the blade's interior surface, making it difficult for the suction cup to securely hold onto it, potentially damaging the blade. Furthermore, the vehicle's slow crawling motion significantly impacts inspection efficiency. Another solution involves installing a camera on a guide rail within the blade to inspect the blade's interior. This approach significantly increases the weight of the blade and shares the same drawbacks as the remote-controlled vehicle. No specialized inspection equipment has yet been developed for components such as blade segments and tips. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, an object of the embodiments of the present invention is to provide an inspection device for wind turbine blades.

[0005] The technical solution adopted in the embodiment of the present utility model is an inspection device for wind turbine blades, including a main unit and a viewing mechanism. The main unit is connected to the viewing mechanism. The viewing mechanism includes a multi-section telescopic rod. A viewing device is installed on the protruding end of the multi-section telescopic rod. The viewing device is communicatively connected to the main unit so that the main unit can control the viewing device.

[0006] Furthermore, the multi-section telescopic rod includes a center rod, and several layers of sleeves are provided on the outside of the center rod. One end of the center rod is constructed as the protruding end of the multi-section telescopic rod, and the other end of the center rod is inserted into the sleeve of its outer layer. At least one of the protruding end of the multi-section telescopic rod and the end of the sleeve close to the protruding end of the multi-section telescopic rod is installed with a support mechanism.

[0007] Furthermore, the supporting mechanism includes a flange, which is movably connected to the protruding end of the multi-section telescopic rod / the end of the sleeve close to the protruding end of the multi-section telescopic rod through a bearing. A plurality of electric telescopic rods are installed on the flange, and the electric telescopic rods are arranged in a centrally symmetrical manner with the flange as the center. The electric telescopic rods are all communicatively connected to the host, and the host can control the extension or retraction of the electric telescopic rods.

[0008] Furthermore, a roller is installed at one end of the electric telescopic rod away from the flange.

[0009] Furthermore, a support spring is sleeved on the electric telescopic rod, and two ends of the support spring respectively abut against the flange and the roller.

[0010] Furthermore, the viewing device includes a forward-looking camera and a surround-looking camera, the forward-looking camera is fixed to the end of the extended end of the multi-section telescopic rod, and the bottom of the surround-looking camera is fixedly connected to a mounting bracket, and the mounting bracket is fixed on the side wall of the extended end of the multi-section telescopic rod.

[0011] Furthermore, a human-computer interaction device and several circuit interfaces are installed on the host, and the human-computer interaction device includes a display screen and buttons.

[0012] Furthermore, the center rod and the sleeve are both engraved with scales showing the extension length.

[0013] Furthermore, a locking device is installed on the sleeve for locking the rod extending therefrom.

[0014] Furthermore, the locking device includes a threaded hole, which is provided on the sleeve, and a screw that matches the threaded hole is screwed into the threaded hole.

[0015] Compared with the prior art, the inspection equipment for wind turbine blades proposed in the present invention uses a telescopic combination of multiple telescopic rods to enable a viewing device to reach the inside of the blade for inspection, and the multiple telescopic rods can be used to freely adjust the position of the viewing device in the axial direction of the blade. The support mechanism is provided with a combination structure of electric telescopic rods, and each electric telescopic rod can be controlled by the host to realize free adjustment of the inspection point in the chordal and radial directions inside the blade. This inspection equipment for wind turbine blades is specially designed for component testing, and can realize detailed inspection of any position inside the blade. It can also help manual inspection to expand a certain inspection range in full-scale testing. This inspection equipment for wind turbine blades is suitable for almost all wind turbine blade inspection work, and can realize a full range of inspections of the accessible sections of the blade and blade components, and has obvious cost advantages. It is of great significance to improve the inspection efficiency of wind turbine blades and control the structural status of test pieces in component testing.

[0016] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention.

[0017] The overview of various implementations or examples of the technology described in this utility model is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar components. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the description and claims, serve to illustrate the embodiments of the utility model. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0019] Figure 1 This is a schematic diagram of the contracted state of an embodiment of the present utility model.

[0020] Figure 2 It is a partial enlarged view of an embodiment of the present utility model.

[0021] Figure 3 This is a schematic diagram of an embodiment of the present invention in an extended state.

[0022] Figure 4 This is a schematic diagram of application scenario 1 of an embodiment of the present utility model.

[0023] Figure 5 This is a schematic diagram of application scenario 2 of an embodiment of the present utility model.

[0024] Figure 6 This is a schematic diagram of application scenario three of an embodiment of the present utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the usual meanings understood by persons of ordinary skill in the field to which this utility model belongs. The words "first", "second" and similar terms used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0027] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0028] See Figures 1 to 6 The present invention provides an inspection device for wind turbine blades, comprising a main unit 1 and a viewing mechanism. The main unit 1 is connected to the viewing mechanism, which includes a multi-section telescopic rod with a viewing device mounted on its protruding end. The viewing device is communicatively connected to the main unit 1, enabling the main unit 1 to operate the viewing device. This technical solution utilizes the telescopic combination of the multi-section telescopic rod to allow the viewing device to reach the interior of the blade for inspection. Furthermore, the multi-section telescopic rod allows the viewing device to be freely adjusted in the axial direction of the blade.

[0029] The multi-section telescopic rod includes a central rod 2, and the outer side of the central rod 2 is provided with several layers of sleeves 3. One end of the central rod 2 is constructed as the protruding end of the multi-section telescopic rod, and the other end of the central rod 2 is inserted into the sleeve 3 of its outer layer. At least one of the protruding end of the multi-section telescopic rod and the end of the sleeve 3 close to the protruding end of the multi-section telescopic rod is installed with a support mechanism.

[0030] Specifically, the support mechanism includes a flange 4, which is movably sleeved on the protruding end of the multi-section telescopic rod / the end of the sleeve 3 near the protruding end of the multi-section telescopic rod through a bearing. Specifically, the protruding end of the multi-section telescopic rod is sleeved with a bearing, and the end of the sleeve 3 near the protruding end of the multi-section telescopic rod can also be sleeved with a bearing. A plurality of electric telescopic rods 5 are installed on the flange 4. The electric telescopic rods 5 are arranged symmetrically with the flange 4 as the center. The electric telescopic rods 5 are all communicatively connected to the host 1, and the host 1 can control the extension or retraction of the electric telescopic rods 5. The support mechanism at the protruding end of the multi-section telescopic rod has a combined structure of electric telescopic rods 5, and each electric telescopic rod 5 can be controlled by the host 1 to realize free adjustment of the checkpoint in the chordal and radial directions inside the blade.

[0031] The flange 4 is movably connected to the protruding end of the multi-section telescopic rod / the end of the sleeve 3 close to the protruding end of the multi-section telescopic rod through a bearing, and the overall rotation of the telescopic rod can be manually controlled, that is, the viewing device fixed on the multi-section telescopic rod can be controlled to rotate 360 ​​degrees, thereby realizing targeted inspection of the corresponding area inside the blade.

[0032] The end of the electric telescopic rod 5 away from the flange 4 is provided with a roller 6. The roller 6 can facilitate the movement of the device in the wind turbine blade for easy inspection.

[0033] The electric telescopic rod 5 is provided with a support spring 7, and the two ends of the support spring 7 respectively abut against the flange 4 and the roller 6. The support spring 7 cooperates with the electric telescopic rod 5, and when the electric telescopic rod 5 needs to be extended, the support spring 7 can enable the electric telescopic rod 5 to respond immediately.

[0034] The inspection device includes a forward-looking camera 8 and a surround-looking camera 9. The forward-looking camera 8 is fixed to the end of the extended end of the multi-section telescopic rod. The surround-looking camera 9 is fixedly connected to the bottom of the mounting bracket 10, which is fixed to the side wall of the extended end of the multi-section telescopic rod. The forward-looking camera 8 is used to inspect the blade end area of ​​the wind turbine blade, and combined with the surround-looking camera 9, it can provide a full visual inspection of the wind turbine blade interior.

[0035] The host 1 is equipped with a human-machine interface device and several circuit interfaces. The human-machine interface device includes a display screen and buttons. The buttons control the extension and retraction of each electric telescopic rod 5, allowing the device to enter and be stably placed inside the wind turbine blade. The display screen can display the images captured by the forward-view camera 8 and the surround-view camera 9.

[0036] The center rod 2 and the sleeve 3 are both engraved with scales showing the extension length. The axial inspection position of the blade or blade component can be determined by the scales on the center rod 2 and the sleeve 3.

[0037] The sleeve 3 is mounted with a locking device for locking the rod extending therefrom. The locking device is used to fix the extension length of the multi-section telescopic rod. Specifically, the locking device includes a threaded hole formed in the sleeve 3, into which a screw is screwed.

[0038] This wind turbine blade inspection device, designed specifically for component testing, enables detailed inspection of any location within the blade. It also extends the scope of manual inspection during full-scale testing. Suitable for nearly all wind turbine blade inspection tasks, it comprehensively inspects accessible blade sections and components, offering significant cost advantages. This device is crucial for improving wind turbine blade inspection efficiency and ensuring accurate control of the structural condition of test specimens during component testing.

[0039] See Figures 4 to 6 When using it, if you want to inspect the leading edge of a certain blade segment, you need to conduct a detailed inspection of a certain cross-section. First, extend the multi-section telescopic rod and lock the length, insert the end with the viewing device into the interior of the blade segment, and push the viewing mechanism body until the viewing device reaches the depth position required for inspection. The host 1 controls the extension / shortening of each electric telescopic rod 5 so that the viewing device is close to the area to be inspected, such as Figure 5 Region I and Figure 6 The Ⅱ area in the display can be used to conduct a detailed inspection of the area to be visited.

[0040] The above description is intended to be illustrative rather than restrictive, and those skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure. Furthermore, the above examples (or one or more of them) may be used in combination with each other, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.

Claims

1. An inspection device for wind turbine blades, comprising a main unit (1) and a viewing mechanism, characterized in that: The host (1) is connected to a viewing mechanism, the viewing mechanism comprising a multi-section telescopic rod, a viewing device being mounted on an extended end of the multi-section telescopic rod, the viewing device being communicatively connected to the host (1) so that the host (1) can control the viewing device; The multi-section telescopic rod comprises a central rod (2), the central rod (2) is externally sleeved with a plurality of layers of sleeves (3), one end of the central rod (2) is configured as an extended end of the multi-section telescopic rod, and the other end of the central rod (2) is inserted into the sleeve (3) of the outer layer thereof, and at least one of the extended end of the multi-section telescopic rod and the end of the sleeve (3) close to the extended end of the multi-section telescopic rod is installed with a support mechanism; The support mechanism comprises a flange (4), the flange (4) being movably sleeved on the protruding end of the multi-section telescopic rod / the end of the sleeve (3) close to the protruding end of the multi-section telescopic rod through a bearing, a plurality of electric telescopic rods (5) being mounted on the flange (4), the electric telescopic rods (5) being centrally symmetrically arranged with the flange (4) as the center, the electric telescopic rods (5) being communicatively connected to the host (1), and the host (1) being capable of controlling the electric telescopic rods (5) to extend or retract; A roller (6) is installed on one end of the electric telescopic rod (5) away from the flange (4).

2. The inspection device for wind turbine blades according to claim 1, characterized in that: A support spring (7) is sleeved on the electric telescopic rod (5), and two ends of the support spring (7) respectively abut against the flange (4) and the roller (6).

3. The inspection device for wind turbine blades according to any one of claims 1 to 2, characterized in that: The viewing device includes a front-view camera (8) and a surround-view camera (9), wherein the front-view camera (8) is fixed to the end of the extended end of the multi-section telescopic rod, and the bottom of the surround-view camera (9) is fixedly connected to a mounting bracket (10), and the mounting bracket (10) is fixed to the side wall of the extended end of the multi-section telescopic rod.

4. The inspection device for wind turbine blades according to any one of claims 1 to 2, characterized in that: The host (1) is equipped with a human-machine interaction device and a plurality of circuit interfaces, wherein the human-machine interaction device includes a display screen and buttons.

5. The inspection device for wind turbine blades according to any one of claims 1 to 2, characterized in that: The central rod (2) and the sleeve (3) are both engraved with scales showing the extension length.

6. The inspection device for wind turbine blades according to any one of claims 1 to 2, characterized in that: The sleeve (3) is provided with a locking device for locking the rod extending therefrom.

7. The inspection device for wind turbine blades according to claim 6, characterized in that: The locking device comprises a threaded hole, which is provided on the sleeve (3) and into which a screw that matches the threaded hole is screwed.

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