Maintenance device for wind power generation equipment

Abstract

The utility model relates to a maintenance device for wind power generation equipment. The wind power generation equipment maintenance device comprises a rod body which comprises a first end and a second end which are oppositely arranged; the cantilever part is connected to the first end of the rod body, and the cantilever part is provided with a through hole for a connecting bolt of the wind power generation equipment to penetrate through; the bearing part is connected to the second end of the rod body, the side, facing the first end, of the bearing part is provided with a bearing face, and the cantilever part and the bearing part are located at different positions of the rod body in the circumferential direction; and the connecting nut is used for being in threaded connection with the connecting bolt penetrating through the through hole. The maintenance device for the wind power generation equipment is not prone to falling off and high in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power, in particular to a maintenance device for wind power generation equipment. Background Art

[0002] The hub and pitch bearing of a wind turbine are typically fastened together using tensioning screws. As the turbine operates, the bolts loosen, necessitating annual maintenance. Existing maintenance devices typically include a hanging frame with a circumferentially extending guide rail positioned on the outer circumference of the pitch bearing. The hanging frame is slidably connected to the guide rail via a pulley assembly. Maintenance is performed on the bolts of the pitch bearing by sliding the hanging frame along the circumference of the pitch bearing. However, after a period of use, these maintenance devices can easily experience the pulley assembly becoming dislodged from the guide rail, causing the hanging frame to fall, posing a significant safety risk. Utility Model Content

[0003] Based on this, it is necessary to provide a wind power generation equipment maintenance device that is not easy to fall off and has high reliability.

[0004] The present invention provides a wind power equipment maintenance device, comprising:

[0005] The rod body comprises a first end and a second end that are oppositely disposed;

[0006] The cantilever portion is connected to the first end of the rod body, and the cantilever portion is provided with a through hole for a connecting bolt outside the wind power generation equipment to pass through;

[0007] a bearing portion connected to the second end of the rod body, the bearing portion having a bearing surface on a side facing the first end, the cantilever portion and the bearing portion being located at different positions on the circumference of the rod body; and

[0008] The connecting nut is used for threaded connection with the connecting bolt passing through the through hole.

[0009] In one embodiment, the bearing portion includes a pedal and two connecting arms, the pedal includes a first surface and a second surface arranged opposite to each other in a thickness direction, the first surface forming a bearing surface;

[0010] Partial structures of the two connecting arms are connected to the pedals, and the other partial structures of the two connecting arms are connected to the second end of the rod body.

[0011] In one embodiment, the connecting arm includes a first sub-connecting arm and a second sub-connecting arm connected to each other; the first sub-connecting arm and the second sub-connecting arm are arranged at an angle;

[0012] The first sub-connecting arms of the two connecting arms are both connected to the second surface of the pedal and are arranged at intervals along the first direction. The second sub-connecting arms of the two connecting arms are respectively connected to the second ends of the rod body and are respectively located on both sides of the second end along the first direction; the first direction is perpendicular to the extension direction of the rod body.

[0013] In one embodiment, the second end of the rod body is provided with an auxiliary connecting portion, and the auxiliary connecting portion is arranged at an angle to the rod body;

[0014] The two first sub-connecting arms are respectively connected to two sides of the auxiliary connecting portion along the first direction.

[0015] In one embodiment, the first sub-connecting arm and the second sub-connecting arm are both constructed as plate-shaped members, and the first sub-connecting arm is arranged perpendicular to the second surface.

[0016] In one embodiment, the projections of the cantilever portion and the bearing portion on the reference plane are located on the opposite side of the projection of the rod body on the reference plane, and the reference plane is a plane perpendicular to the rod body.

[0017] In one embodiment, the cantilever portion includes a cantilever plate, and also includes flange portions connected to opposite sides of the cantilever plate along a first direction, the two flange portions are connected to both sides of the first end along the first direction, and the cantilever plate is pressed against the end face of the first end; the first direction is perpendicular to the extension direction of the rod body.

[0018] In one embodiment, the cantilever portion further includes two supporting arms, one end of the two supporting arms is respectively connected to the two flange portions, and the other ends of the two supporting arms are respectively connected to two sides of the rod body along the first direction.

[0019] In one embodiment, an operating handle is provided on an axial end surface of the connecting nut, and two ends of the operating handle are connected to radially opposite sides of the connecting nut.

[0020] In one embodiment, the operating handle includes a main body and bent arms connected to two ends of the main body, and a side of the bent arm facing away from the main body is connected to two radially opposite sides of the connecting nut.

[0021] Beneficial effects of the above-mentioned wind power generation equipment maintenance device:

[0022] The cantilever portion is provided with a through hole for the connecting bolts of the wind power generation equipment to pass through. During maintenance, the connecting bolts can pass through the through hole, so that the cantilever portion is hung on the connecting bolts, and then the connecting nuts are tightened on the connecting bolts, so that the cantilever portion can be firmly fixed on the connecting bolts, so that the wind power generation equipment maintenance device can be more reliably fixed on the connecting bolts. Compared with the sliding cooperation method of the pulley group and the guide rail in the prior art, the possibility of separation is smaller, which greatly improves the safety of the operator.

[0023] In addition, the bearing part is connected to the second end of the rod body, and a bearing surface is provided on the side of the bearing part facing the first end. The cantilever part and the bearing part are located at different positions of the rod body in the circumferential direction. In this way, when the cantilever part is hung on the connecting bolt, a person can stand on the bearing surface of the bearing part to maintain the wind power generation equipment, which is relatively simple and convenient.

[0024] In other words, this application can effectively solve the problem of operators lacking a stable foothold when maintaining or replacing connecting bolts, thereby improving the safety and efficiency of construction. It is also simple to use, highly adaptable, and has important practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a wind power generation equipment maintenance device provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the exploded structure of a wind power generation equipment maintenance device provided in an embodiment of the present application;

[0027] Figure 3 A schematic diagram of the connection structure between the rod body and the cantilever part of the wind power generation equipment maintenance device provided in an embodiment of the present application;

[0028] Figure 4 A schematic structural diagram of a bearing portion of a wind power generation equipment maintenance device provided in an embodiment of the present application;

[0029] Figure 5 This is a schematic structural diagram of the connecting nut in the wind power equipment maintenance device provided in an embodiment of the present application.

[0030] Description of Figure Numbers:

[0031] 100. Wind power equipment maintenance device;

[0032] 10. Rod body; 11. First end; 12. Second end; 121. Auxiliary connecting portion;

[0033] 20. Cantilever portion; 21. Through hole; 22. Cantilever plate; 23. Flanged portion; 24. Support arm;

[0034] 30. Bearing portion; 31. Bearing surface; 32. Pedal; 321. First surface; 322. Second surface; 33. Connecting arm; 330. Bolt; 331. First sub-connecting arm; 332. Second sub-connecting arm;

[0035] 40. Connecting nut;

[0036] 50. Operating handle; 51. Main body; 52. Folding arm;

[0037] F. First direction. DETAILED DESCRIPTION

[0038] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0041] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0042] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0044] The wind power generation equipment maintenance device according to the embodiment of the present application is described below with reference to the accompanying drawings.

[0045] Figure 1 A schematic diagram of the structure of a wind power generation equipment maintenance device provided in an embodiment of the present application; Figure 2 This is a schematic diagram of the exploded structure of the wind power equipment maintenance device provided in an embodiment of the present application. Figure 3 A schematic diagram of the connection structure between the rod body and the cantilever part of the wind power generation equipment maintenance device provided in an embodiment of the present application; Figure 4 A schematic structural diagram of a bearing portion of a wind power generation equipment maintenance device provided in an embodiment of the present application; Figure 5 This is a schematic structural diagram of the connecting nut in the wind power equipment maintenance device provided in an embodiment of the present application.

[0046] Reference Figure 1 、 Figure 2 、 Figure 3 The wind power generation equipment maintenance device 100 provided in the embodiment of the present application includes: a rod body 10, a cantilever portion 20, a bearing portion 30 and a connecting nut 40.

[0047] The rod body 10 includes a first end 11 and a second end 12 that are arranged opposite to each other. The cantilever portion 20 is connected to the first end 11 of the rod body 10. The cantilever portion 20 is provided with a through hole 21 for a connecting bolt (not shown) outside the wind turbine to pass through. Generally, the screw of the connecting bolt extends upward. In this way, the cantilever portion 20 can be hung on the connecting bolt by aligning the through hole 21 of the cantilever portion 20 with the connecting bolt and sliding it down from the upper end of the connecting bolt. The diameter of the through hole 21 can be the same as the diameter of the connecting bolt, or slightly larger than the diameter of the connecting bolt to ensure that the connecting bolt can be smoothly inserted. The connecting bolt here can be the connecting bolt between the pitch bearing and the hub in the wind turbine.

[0048] The bearing portion 30 is connected to the second end 12 of the rod body 10. A bearing surface 31 is provided on the side of the bearing portion 30 facing the first end 11. The cantilever portion 20 and the bearing portion 30 are located at different circumferential positions of the rod body 10. Here, "the cantilever portion 20 and the bearing portion 30 are located at different circumferential positions of the rod body 10" means that, when viewed from above, the cantilever portion 20 and the bearing portion 30 extend from the rod body 10 in different directions. This ensures that when the cantilever portion 20 is attached to the connecting bolt, the bearing portion 30 does not interfere with the wheel hub, making it easier for the operator to stand.

[0049] The connecting nut 40 is used for threaded connection with the connecting bolt passing through the through hole 21. Usually, the connecting nut 40 can be screwed onto the connecting bolt manually by an operator.

[0050] In the above scheme, a through hole 21 is provided through the cantilever part 20 for the connecting bolts of the wind power generation equipment to pass through. During the maintenance process, the connecting bolts can pass through the through hole 21, so that the cantilever part 20 is hung on the connecting bolts, and then the connecting nut 40 is tightened on the connecting bolts, so that the cantilever part 20 can be firmly fixed on the connecting bolts, so that the wind power generation equipment maintenance device 100 can be more reliably fixed on the connecting bolts. Compared with the sliding cooperation method of the pulley group and the guide rail in the prior art, the possibility of separation is smaller, which greatly improves the safety of the operator.

[0051] In addition, the bearing part 30 is connected to the second end 12 of the rod body 10, and a bearing surface 31 is provided on the side of the bearing part 30 facing the first end 11. The cantilever part 20 and the bearing part 30 are located at different positions of the rod body 10 in the circumferential direction. In this way, after the cantilever part 20 is hung on the connecting bolt, a person can stand on the bearing surface 31 of the bearing part 30 to maintain the wind power generation equipment, which is relatively simple and convenient.

[0052] Furthermore, when working at high altitudes near edges, the portability of the device is directly related to the operator's efficiency and safety. A lightweight device can reduce physical exertion for construction workers, allowing them to complete their work more flexibly and quickly. Therefore, the wind turbine maintenance device 100 of this embodiment of the application can be made of a high-strength aluminum alloy, such as 7005 aluminum alloy, to reduce weight and improve welding performance.

[0053] In the embodiment of this application, Figure 2 and Figure 4 The bearing portion 30 includes a pedal 32 and two connecting arms 33. The pedal 32 includes a first surface 321 and a second surface 322 that are opposite to each other along the thickness direction. The first surface 321 forms the bearing surface 31. Parts of the two connecting arms 33 are connected to the pedal 32, and the other parts of the two connecting arms 33 are connected to the second end 12 of the rod body 10.

[0054] Thus, the pedal 32 and the rod body 10 are connected by two connecting arms 33. The two connecting arms 33 and the pedal 32 can be connected by welding or the like, and the two connecting arms 33 and the rod body 10 can be connected by fasteners such as bolts 330.

[0055] The first surface 321 of the pedal 32 may also be installed with anti-slip material, or an anti-slip texture may be provided on the first surface 321 to effectively increase the friction between the pedal 32 and the operator, thereby preventing the operator from slipping or falling during operation.

[0056] Furthermore, the connecting arm 33 includes a first sub-connecting arm 331 and a second sub-connecting arm 332 that are connected to each other, and the first sub-connecting arm 331 and the second sub-connecting arm 332 are arranged at an angle.

[0057] The first sub-connecting arms 331 of the two connecting arms 33 are both connected to the second surface 322 of the pedal 32 and are spaced apart along the first direction F. The second sub-connecting arms 332 of the two connecting arms 33 are respectively connected to the second end 12 of the rod body 10 and are located on either side of the second end 12 along the first direction F. The first direction F is perpendicular to the extension direction of the rod body 10. Of course, the two second sub-connecting arms 332 extend from the second surface 322 toward the first surface 321 and extend beyond the first surface 321, thereby being fixed to the second end 12.

[0058] This arrangement positions the second sub-connecting arm 332 of the connecting arm 33 on the second surface 322 of the pedal 32, thereby increasing the connection strength between the support portion 30 and the rod body 10 and providing better support for an operator standing on the first surface 321, thereby enhancing safety. In a specific implementation, the first sub-connecting arm 331 and the second sub-connecting arm 332 can be arranged perpendicularly to each other, so that the connecting arm 33 roughly forms the shape of the Arabic numeral 7. Of course, the present application is not limited to this, and the angle can also be other angles, as long as it meets the operator's standing requirements.

[0059] In this embodiment of the present application, the second end 12 of the rod body 10 is provided with an auxiliary connecting portion 121, which is arranged at an angle to the rod body 10. Two first sub-connecting arms 331 are respectively connected to either side of the auxiliary connecting portion 121 along the first direction F. This arrangement enhances the connection strength between the connecting arms 33 and the rod body 10. The auxiliary connecting portion 121 can be specifically perpendicular to the rod body 10, thereby facilitating the connection between the first sub-connecting arm 331 and the auxiliary connecting portion 121, and the connection between the second sub-connecting arm 332 and the second end 12.

[0060] In the embodiment of the present application, the first sub-connecting arm 331 and the second sub-connecting arm 332 are both constructed as plate-shaped members, and the first sub-connecting arm 331 is arranged perpendicular to the second surface 322 .

[0061] In the embodiment of the present application, the projections of the cantilever portion 20 and the bearing portion 30 on the reference plane are located on the opposite side of the projection of the rod body 10 on the reference plane, and the reference plane is a plane perpendicular to the rod body 10 .

[0062] With such arrangement, after the cantilever portion 20 is hung on the connecting bolt, the bearing portion 30 can avoid interfering with the wheel hub, making it convenient for an operator to step on the bearing surface 31 of the bearing portion 30 to perform operations.

[0063] Further, continue to refer to Figure 2 The cantilever portion 20 includes a cantilever plate 22 and flange portions 23 connected to opposite sides of the cantilever plate 22 along a first direction F. The two flange portions 23 are connected to opposite sides of the first end 11 along the first direction F, and the cantilever plate 22 presses against the end surface of the first end 11. In a specific implementation, the flange portions can be fixed to the first end 11 using fasteners such as bolts.

[0064] In the embodiment of the present application, the cantilever portion 20 further includes two support arms 24 , one end of the two support arms 24 is respectively connected to the two flange portions 23 , and the other end of the two support arms 24 is respectively connected to both sides of the rod body 10 along the first direction F.

[0065] With such an arrangement, the connection between the cantilever plate 22 and the rod body 10 can be strengthened by utilizing the connection between the two support arms 24 and the cantilever plate 22 and the rod body 10 respectively.

[0066] Of course, one end of the two support arms 24 and the two flange portions 23 can be connected by welding or the like, and the other end of the two support arms 24 and the rod body 10 can be connected by fasteners such as bolts.

[0067] Further, combined with Figure 2 and Figure 5 An operating handle 50 is provided on one axial end surface of the connecting nut 40 , and two ends of the operating handle 50 are connected to radially opposite sides of the connecting nut 40 .

[0068] On the one hand, it is convenient for the operator to hold the operating handle 50 to screw the connecting nut into the connecting bolt. On the other hand, it is also convenient for the operator to hang the safety buckle into the annular space formed by the operating handle 50 and the end face of the connecting nut 40, providing a hanging point, so that the safety of the operator is further guaranteed.

[0069] In the embodiment of the present application, the operating handle 50 includes a main body 51 and bent arms 52 connected to both ends of the main body 51. The side of the bent arms 52 facing away from the main body 51 is connected to two radially opposite sides of the nut. This makes it easier for the operator to hold the main body 51 and screw it onto the connecting bolt.

[0070] A specific example is given below to illustrate the dimensions of various parts of the wind power equipment maintenance device 100 .

[0071] 1. Rod body 10: width = 70mm, length = 1060mm, thickness = 5mm, the whole is formed into a square strip shape, and the interior is hollow, and the material is 7005 aluminum alloy.

[0072] 2. Pedal 32: Length = 282mm, width = 150mm, thickness = 5mm. Made of 7005 aluminum alloy, it is cast and ground to the required surface roughness. Pedal 32 has a non-slip pattern cut into its first surface 321. The two connecting arms 33 are formed into a "7" shape by cutting a rectangular aluminum alloy material with a length = 282mm, a width = 125mm, and a thickness = 5mm.

[0073] The two connecting arms 33 are welded to the second surface 322 of the pedal 32 to form the bearing portion 30 , and the bearing portion 30 is free of burrs and sharp edges to ensure the safety of the operator when standing.

[0074] 3. Cantilever portion 20: formed of a "U"-shaped material with a width of 70 mm, a length of 400 mm, and a thickness of 5 mm. A φ36 screw hole is opened on the cantilever plate 22 as a through hole 21.

[0075] 4. The connecting nut 40 has a model of GB / T834-1988 and a coarse thread of M36. The operating handle 50 has a width of 16 mm, a length of 56 mm, and a thickness of 5 mm, and is formed into a "U"-shaped connecting piece. The operating handle 50 is connected to the connecting nut 40 by welding.

[0076] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A wind power generation equipment maintenance device, characterized in that: include: The rod body comprises a first end and a second end that are oppositely disposed; a cantilever portion connected to the first end of the rod body, the cantilever portion being provided with a through hole for a connecting bolt outside the wind power generation device to pass through; a bearing portion connected to the second end of the rod body, the bearing portion having a bearing surface on a side facing the first end, the cantilever portion and the bearing portion being located at different positions of the rod body in the circumferential direction; and A connecting nut is used for threaded connection with the connecting bolt passing through the through hole.

2. The wind power generation equipment maintenance device according to claim 1, characterized in that: The bearing portion includes a pedal and two connecting arms, the pedal includes a first surface and a second surface arranged opposite to each other in the thickness direction, the first surface forming the bearing surface; The two connecting arms have partial structures connected to the pedals, and the other partial structures of the two connecting arms are connected to the second end of the rod body.

3. The wind power generation equipment maintenance device according to claim 2, characterized in that: The connecting arm comprises a first sub-connecting arm and a second sub-connecting arm connected to each other; the first sub-connecting arm and the second sub-connecting arm are arranged at an angle; The first sub-connecting arms of the two connecting arms are both connected to the second surface of the pedal and are arranged at intervals along the first direction. The second sub-connecting arms of the two connecting arms are respectively connected to the second ends of the rod body and are respectively located on both sides of the second end along the first direction; the first direction is perpendicular to the extension direction of the rod body.

4. The wind power generation equipment maintenance device according to claim 3, characterized in that: The second end of the rod body is provided with an auxiliary connecting portion, and the auxiliary connecting portion is arranged at an angle to the rod body; The two first sub-connecting arms are respectively connected to two sides of the auxiliary connecting portion along the first direction.

5. The wind power generation equipment maintenance device according to claim 3, characterized in that: The first sub-connecting arm and the second sub-connecting arm are both configured as plate-shaped members, and the first sub-connecting arm is arranged perpendicular to the second surface.

6. The wind power generation equipment maintenance device according to claim 2, characterized in that: The projections of the cantilever portion and the bearing portion on the reference plane are located on the opposite side of the projection of the rod body on the reference plane, and the reference plane is a plane perpendicular to the rod body.

7. The wind power generation equipment maintenance device according to any one of claims 1 to 6, characterized in that: The cantilever portion includes a cantilever plate and also includes flange portions connected to opposite sides of the cantilever plate along a first direction. The two flange portions are connected to both sides of the first end along the first direction, and the cantilever plate is pressed against the end face of the first end; the first direction is perpendicular to the extension direction of the rod body.

8. The wind power generation equipment maintenance device according to claim 7, characterized in that: The cantilever portion further includes two supporting arms, one end of the two supporting arms is respectively connected to the two flange portions, and the other ends of the two supporting arms are respectively connected to two sides of the rod body along the first direction.

9. The wind power generation equipment maintenance device according to any one of claims 1 to 6, characterized in that: An operating handle is provided on one axial end surface of the connecting nut, and two end portions of the operating handle are connected to two radially opposite sides of the connecting nut.

10. The wind power generation equipment maintenance device according to claim 9, characterized in that: The operating handle includes a main body and bent arms connected to both ends of the main body, and a side of the bent arm facing away from the main body is connected to two radially opposite sides of the connecting nut.

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