Inspection equipment for wind power blade

Abstract

The embodiment of the invention 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 multi-section telescopic rod, a visiting device is installed on the extension end of the multi-section telescopic rod, and the visiting device is in communication connection with the host, so that 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, by means of telescopic combination of the multiple sections of telescopic rods, inspection and inspection of the inspection device in the blade are achieved, and the position of the inspection device in the axial direction of the blade can be freely adjusted through the multiple sections of telescopic rods.

Description

Technical Field

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

[0002] Inspection of blade components is an important task in wind power equipment maintenance. Currently, the main method of blade inspection is manual inspection. Inspectors enter the inside of the blade to observe the inner surface of the blade, which is intuitive and efficient. However, due to the variable cross-section characteristics of the blade, the space gradually decreases toward the tip of the blade, and inspectors often find it difficult to reach the tip of the blade for inspection. Even if they reach it with difficulty, they will face the risk of getting stuck, resulting in incomplete inspection of the blade. In particular, inspection of components in areas such as blade segments and blade tips also faces the problem of difficulty in reaching.

[0003] In response to these problems, some solutions have emerged on the market. The most mainstream solution is to use a remote-controlled car. With the advantage of its small size, it can enter the area inside the blade that is difficult to reach manually for video inspection. However, the car can only move at the bottom and cannot inspect the upper area of ​​the blade. If you want to inspect the upper area inside the blade, you need to flip the blade, which increases the workload and cost. If you do not flip the blade, the car must be equipped with high-parameter camera equipment to achieve a better inspection effect, and its cost is also high. In addition, some people have proposed using a crawling car with a suction cup to achieve a 360° inspection of the inside of the blade, but the inner surface of the blade is often attached with dust and other impurities. The suction cup is difficult to adsorb and is easy to adsorb loosely, resulting in damage to the blade, and the slow crawling of the car seriously affects the inspection efficiency. Another solution is to lay a guide rail inside the blade and set a camera on the guide rail to inspect the internal situation of the blade. Obviously, this method increases the weight of the blade and has the same disadvantages as the remote-controlled car. There is no professional inspection equipment for the inspection of blade segments, blade tip segments and other components. Summary of the invention

[0004] In view of the above problems existing in the prior art, an object of an embodiment of the present invention is to provide an inspection device for a wind turbine blade.

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

[0006] Furthermore, the multi-section telescopic rod includes a center rod, and several layers of sleeves are sleeved on the outside of the center rod. One end of the center rod is constructed as an extended 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 extended end of the multi-section telescopic rod and the end of the sleeve close to the extended end of the multi-section telescopic rod is installed with a supporting mechanism.

[0007] Furthermore, the supporting mechanism includes a flange, which is movably sleeved on the extended end of the multi-section telescopic rod / the end of the sleeve close to the extended end of the multi-section telescopic rod through a bearing, and a plurality of electric telescopic rods are installed on the flange, and the electric telescopic rods are arranged symmetrically with the flange as the center, and 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 exploration device includes a front-view camera and a surround-view camera, the front-view camera is fixed to the end of the extended end of the multi-section telescopic rod, the bottom of the surround-view camera is fixedly connected to a mounting bracket, and the mounting bracket is fixed to the side wall of the extended end of the multi-section telescopic rod.

[0011] Furthermore, a human-machine interaction device and a plurality of circuit interfaces are installed on the host, and the human-machine 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 for locking the rod extending therefrom is installed on the sleeve.

[0014] Furthermore, the locking device comprises a threaded hole, which is provided on the sleeve, and a screw matching with 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 has a combination structure with electric telescopic rods, and each electric telescopic rod can be controlled by the host to realize the free adjustment of the inspection point in the chordal and radial directions inside the blade. The inspection equipment for wind turbine blades is specially designed for component testing, and can realize detailed inspection of any position inside the blade. In full-scale testing, it can also help manual inspection to expand a certain inspection range. The 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 blades 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 state 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 invention.

[0017] This summary of various implementations or examples of the technology described in this disclosure 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 parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the embodiments of the invention. When 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 Schematic diagram of the contracted state of an embodiment of the present invention.

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

[0021] Figure 3 Schematic diagram of the extended state of an embodiment of the present invention.

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

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

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

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment 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 terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words 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. "Connect" or "connected" and similar words 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 described object 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, detailed descriptions of well-known functions and well-known components are omitted.

[0028] See also Figures 1 to 6 The embodiment of the present invention provides an inspection device for wind turbine blades, including a host 1 and a viewing mechanism, wherein the host 1 is connected to the viewing mechanism, and the viewing mechanism includes a multi-section telescopic rod, and a viewing device is installed on the extended end of the multi-section telescopic rod, and the viewing device is connected to the host 1 in communication, so that the host 1 can operate the viewing device. This technical solution uses the telescopic combination of the multi-section telescopic rod to realize that the viewing device reaches the inside of the blade for inspection, and the multi-section telescopic rod can be used to freely adjust the position of the viewing device in the axial direction of the blade.

[0029] The multi-section telescopic rod includes a central rod 2, and a plurality of layers of sleeves 3 are sleeved on the outside of the central rod 2. One end of the central rod 2 is constructed as the extended 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 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 supporting mechanism.

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

[0031] The flange 4 is movably connected to the extended end of the multi-section telescopic rod / the end of the sleeve 3 close to the extended 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, which is convenient for the inspection operation.

[0033] The electric telescopic rod 5 is sleeved with a support spring 7, and the two ends of the support spring 7 are respectively 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 make the electric telescopic rod 5 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, and the bottom of the surround-looking 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. The forward-looking camera 8 is used to inspect the blade area at the end of the wind turbine blade, and combined with the surround-looking camera 9, a full-range visual inspection of the inside of the wind turbine blade is realized.

[0035] The host 1 is equipped with a human-machine interaction device and several circuit interfaces, and the human-machine interaction device includes a display screen and buttons. The buttons are used to control the extension or retraction of each electric telescopic rod 5, so that the device can enter and be stably placed inside the wind turbine blade; the display screen can display the images collected by the front-view camera 8 and the surround-view camera 9.

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

[0037] The sleeve 3 is provided 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, which is provided on the sleeve 3, and a screw matching the threaded hole is screwed into the threaded hole.

[0038] This inspection equipment for wind turbine blades is specially designed for component testing. It 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. It can realize a full range of inspections of the accessible sections of the blades 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.

[0039] See also Figures 4 to 6 When using it, if you want to inspect the leading edge of a blade segment of a certain type, you need to conduct a detailed inspection of a certain cross-sectional position. First, extend the multi-section telescopic rod and lock the length, insert one end with the viewing device into 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. Moreover, 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 visiting mechanism, which comprises a multi-section telescopic rod, on the extended end of which a visiting device is mounted, and the visiting device is communicatively connected to the host (1) so that the host (1) can control the visiting device.

2. The inspection device for wind turbine blades according to claim 1, characterized in that: 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 its outer layer, 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.

3. The inspection device for wind turbine blades according to claim 2, characterized in that: The support mechanism comprises a flange (4), the flange (4) being movably sleeved on the extended end of the multi-section telescopic rod / the end of the sleeve (3) close to the extended 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 a host (1), and the host (1) being capable of controlling the electric telescopic rods (5) to extend or retract.

4. The inspection device for wind turbine blades according to claim 3, characterized in that: A roller (6) is installed at one end of the electric telescopic rod (5) away from the flange (4).

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

6. The inspection device for wind turbine blades according to any one of claims 2 to 5, characterized in that: The exploration device comprises 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.

7. The inspection device for wind turbine blades according to any one of claims 2 to 5, 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 comprises a display screen and buttons.

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

9. The inspection device for wind turbine blades according to any one of claims 2 to 5, characterized in that: The sleeve (3) is provided with a locking device for locking the rod extending therefrom.

10. The inspection device for wind turbine blades according to claim 9, characterized in that: The locking device comprises a threaded hole, which is formed on the sleeve (3) and into which a matching screw is screwed.

Images