Rotary wind meter mounting rack

Abstract

The utility model provides a rotary anemometer mounting rack, which comprises a first support, a second support, a third support and a fourth support, the first end of the first support is connected to a cabin cover of a wind driven generator, and a limiting part is arranged on the first support; a wind meter is connected to the second support, the second support is connected with the second end of the first support, a rotating part is arranged at the joint of the first support and the second support, and when the rotating part is locked, the first support and the second support extend in the same height direction. When the rotating part is unlocked, the second support abuts against the limiting part, and the height of the wind meter is lower than the height of the rotating part when the rotating part is locked. After the second support rotates, the height of the wind meter can be reduced to the height of a maintainer, the wind meter can be maintained without climbing operation, a ladder stand does not need to be arranged, and a series of problems caused by the ladder stand, such as the cost problem, are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generators, in particular to a rotary anemometer mounting frame. Background Art

[0002] The wind turbine is equipped with an anemometer, which is installed on the top of the nacelle of the wind turbine through a mounting frame. The existing anemometer mounting frame structures of wind turbines mainly include two types, one is a mounting frame with a ladder structure, and the other is a mounting frame that can be rotated and laid down at the root. The above two mounting frames mainly have the following problems: First, the mounting frame with a ladder structure increases the wind load area due to the ladder structure, thereby increasing the load on the nacelle cover, affecting the structure and strength of the nacelle cover; the ladder structure also increases the direct material cost of the anemometer mounting frame and the workload of the wind farm installation operation. Second, when performing maintenance operations through the ladder structure, it is a high-altitude operation and has certain safety risks. Third, when performing maintenance operations on the mounting frame that can be rotated and laid down at the root, the mounting frame needs to be rotated and laid down as a whole. It is high and heavy. When laying it down and standing it up, it needs to be manually borne by almost all the weight of the device, and the operation of the personnel is relatively laborious; at the same time, the diagonal brace needs to be removed when rotating and laying it down, which increases the workload of the maintenance operation. Fourth, when the mounting frame is rotated and laid down as a whole, a large space is occupied on the top of the nacelle cover, which limits the layout of components on the top of the nacelle cover. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a rotary anemometer mounting frame in order to overcome the defects of the prior art that the mounting frame has high cost, large wind load and difficult maintenance.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A rotary anemometer mounting frame, the rotary anemometer mounting frame comprising:

[0006] A first bracket, wherein a first end of the first bracket is connected to a nacelle cover of the wind turbine, and a limiting portion is provided on the first bracket;

[0007] A second bracket, a wind meter is connected to the second bracket, the second bracket is connected to the second end of the first bracket, and a rotating part is provided at the connection between the first bracket and the second bracket, when the rotating part is locked, the first bracket and the second bracket extend in the same height direction, when the rotating part is unlocked, the second bracket abuts against the limiting part and the height of the wind meter is lower than the height when the rotating part is locked.

[0008] In this solution, a rotating part is provided to realize the rotation of the second bracket relative to the first bracket, and after the second bracket rotates, the height of the anemometer can be lowered to the height of the maintenance personnel, and the maintenance personnel can maintain the anemometer without climbing up, and there is no need to set up a ladder, thereby avoiding a series of problems caused by the ladder, such as cost issues. It can be understood that the second bracket rotates alone compared to the overall rotation of the mounting frame, and the space occupied by the nacelle cover during its rotation is smaller, and positioning the second bracket by the limiter makes maintenance more labor-saving and convenient.

[0009] Preferably, a limiting rod is disposed on the second bracket, the limiting rod extends toward the first bracket, and the limiting rod and the limiting portion are respectively located on two opposite sides of the first bracket.

[0010] In this solution, a limit rod is provided to limit the rotation direction of the second bracket. In addition, when the second bracket rotates, the maintenance personnel can hold the limit rod to assist the rotation of the second bracket, thereby improving the operability of maintenance.

[0011] Preferably, the rotary anemometer mounting bracket also includes a third bracket, one end of the third bracket is connected to the nacelle cover, the other end of the third bracket is connected to the first bracket and is located on the same side as the limiting portion, and the third bracket, the first bracket and the nacelle cover are arranged in sequence to form a triangle.

[0012] In this solution, a third bracket is provided to support the first bracket, thereby improving the reliability and stability of the first bracket.

[0013] Preferably, the first bracket and the second bracket are provided with channels for accommodating cables, a cable connector is provided at the connection between the first bracket and the second bracket, and the cables in the channel of the first bracket extend into the channel of the second bracket through the cable connector.

[0014] In this solution, a cable connector is provided to effectively extend the cable at the rotational connection between the first bracket and the second bracket, thereby preventing the cable from being entangled and easily broken and damaged when the first bracket and the second bracket rotate, thereby improving reliability.

[0015] Preferably, the rotating part includes a first ear plate, a second ear plate and a rotating shaft, the first ear plate is fixedly connected to the first bracket, the second ear plate is fixedly connected to the second bracket, and the second ear plate and the second end of the first bracket form a hinge through the rotating shaft.

[0016] In this solution, the above arrangement is used to realize the rotation of the second bracket relative to the first bracket.

[0017] Preferably, the rotating part also includes a locking part, which is arranged on the first ear plate and the second ear plate. When the locking part is locked, the second bracket and the first bracket maintain extending in the same height direction. When the locking part is unlocked, the second bracket rotates around the rotating part and is limited by the limiting part.

[0018] In this solution, a locking portion is provided to ensure the height of the anemometer when maintenance is not required, and when maintenance is required, the locking portion is unlocked to enable the second bracket to rotate relative to the first bracket.

[0019] Preferably, a mounting portion is provided on the second bracket, the mounting portion is arranged away from the first bracket, and the anemometer is detachably connected to the mounting portion.

[0020] In this solution, through the above-mentioned settings, a detachable connection between the anemometer and the second bracket is achieved, thereby improving the convenience of maintenance.

[0021] Preferably, the limiting portion extends toward the second bracket and is arranged obliquely outward from an extending direction of the first bracket.

[0022] In this solution, the above arrangement is used to improve the bearing capacity of the limiting portion and the stability when bearing the second bracket.

[0023] Preferably, the limiting portion comprises a limiting groove, the shape of the limiting groove is the same as that of the second bracket, and two side walls of the limiting groove are correspondingly arranged perpendicular to the rotation direction of the second bracket.

[0024] In this solution, through the above arrangement, when the second bracket is positioned in the limiting groove, the second bracket is positioned perpendicular to the rotation direction to prevent the second bracket from shaking.

[0025] Preferably, the rotating portion is arranged in a middle area of ​​the second bracket.

[0026] In this solution, through the above arrangement, compared with the case where the rotating part is arranged at the end connection of the second bracket, the space occupied on the cabin cover is further reduced. At the same time, while meeting the maintenance requirements, the second bracket is simpler to operate, reducing the difficulty of maintenance.

[0027] The positive and progressive effect of the utility model is that the utility model sets a rotating part to realize the rotation of the second bracket relative to the first bracket, and then after the second bracket rotates, the height of the anemometer can be reduced to the height of the maintenance personnel, and the maintenance personnel can maintain the anemometer without climbing, and there is no need to set up a ladder, avoiding a series of problems caused by the ladder, such as cost problems. It can be understood that the second bracket rotates alone compared to the overall rotation of the mounting frame, and the space occupied by the nacelle cover during its rotation is smaller, and the positioning of the second bracket by the limit part makes maintenance more labor-saving and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a three-dimensional diagram of a rotary anemometer mounting frame according to a preferred embodiment of the utility model.

[0029] Figure 2 for Figure 1 A partial enlarged view of middle A.

[0030] Figure 3 It is a schematic diagram of the abutment between the second bracket and the limiting portion in a preferred embodiment of the utility model.

[0031] Figure 4 It is a structural schematic diagram of a first bracket of a preferred embodiment of the utility model.

[0032] Figure 5 It is a schematic structural diagram of a second bracket of a preferred embodiment of the utility model.

[0033] Figure 6 It is a structural schematic diagram of a third bracket of a preferred embodiment of the utility model.

[0034] Description of reference numerals:

[0035] First bracket 1

[0036] Limiting part 11

[0037] Limiting slot 111

[0038] Second bracket 2

[0039] Anemometer 21

[0040] Limit rod 22

[0041] The third bracket 3

[0042] Rotating part 4

[0043] First ear plate 41

[0044] Second ear plate 42

[0045] Shaft 43

[0046] Locking portion 44

[0047] Cable connector 5

[0048] Installation part 6

[0049] Lightning rod 61 DETAILED DESCRIPTION

[0050] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0051] This embodiment provides a rotating anemometer mounting frame, the specific structure of which is as follows: Figure 1 , Figure 2 and Figure 3 As shown, the rotating anemometer mounting frame includes:

[0052] A first bracket 1, a first end of the first bracket 1 is connected to a nacelle cover of the wind turbine, and a limiting portion 11 is provided on the first bracket 1;

[0053] The second bracket 2 is connected to a wind meter 21, the second bracket 2 is connected to the second end of the first bracket 1, and a rotating part 4 is provided at the connection between the first bracket 1 and the second bracket 2. When the rotating part 4 is locked, the first bracket 1 and the second bracket 2 extend in the same height direction. When the rotating part 4 is unlocked, the second bracket 2 abuts against the limiting part 11 and the height of the wind meter 21 is lower than the height when the rotating part 4 is locked.

[0054] Specifically, the first bracket 1 and the second bracket 2 are separately arranged and are rotatably connected by the rotating part 4 to form an integral structure. The rotating part 4 can be arranged at the end of the second bracket 2 or the middle area between the two ends. The first bracket 1 is a rectangular tube and is vertically arranged on the top of the cabin cover. The second bracket 2 is a rectangular tube and when the rotating part 4 is locked, the second bracket 2 and the first bracket 1 are arranged in the same height direction. From the appearance, the second bracket 2 and the first bracket 1 form a rod body and the heights of the two are superimposed on each other, for example, the sum of the heights of the first bracket 1 and the second bracket 2, or the sum of the height of the first bracket 1 and the height of part of the second bracket 2, is measured. The anemometer 21 is arranged at the end of the second bracket 2 away from the first bracket, so that when the rotating part 4 is locked, the anemometer 21 is supported to a preset working height by the first bracket 1 and the second bracket 2. When the rotating part 4 is unlocked, the second bracket 2 rotates around the rotating part 4 and rotates to the position of the limiting part 11. The second bracket 2 is limited by the limiting part 11, and the height of the anemometer 21 on the second bracket 2 is correspondingly reduced to a height that maintenance personnel can maintain, so that maintenance personnel can maintain the anemometer 21 without climbing up and setting up a ladder, avoiding a series of problems caused by ladders, such as cost issues and excessive wind load area of ​​the mounting frame.

[0055] It can be understood that in this embodiment, the second bracket 2 occupies a smaller space in the cabin cover when it rotates alone than when the mounting frame rotates as a whole. The second bracket 2 is limited by the limiting portion 11, and maintenance personnel do not need to support the entire weight of the mounting frame for maintenance, making maintenance more labor-saving and convenient.

[0056] Furthermore, a limiting rod 22 is disposed on the second bracket 2 , and the limiting rod 22 extends toward the first bracket 1 . The limiting rod 22 and the limiting portion 11 are respectively located on two opposite sides of the first bracket 1 .

[0057] Specifically, the limit rod 22 is a cylindrical structure and is coaxially arranged with the extension direction of the second bracket 2, and the limit rod 22 extends from the end of the second bracket 2 close to the first bracket 1 toward the first bracket 1, wherein the limit portion 11 on the first bracket 1 is located on the first side of the first bracket 1, and the second bracket 2 and the limit rod 22 are both located on the second side of the first bracket 1 to avoid interference with the limit portion 11 when the second bracket 2 rotates, and the limit rod 22 can limit further rotation of the second bracket 2 when it contacts the second side, so as to extend the second bracket 2 and the first bracket 1 in the same height direction when the rotating portion 4 is locked.

[0058] It should be noted that when the rotating part 4 is unlocked, the maintenance personnel can hold the limiting rod 22 to drive the second bracket 2 to rotate. The cylindrical structure can improve the grip comfort for the maintenance personnel's hands and improve the operability of maintenance.

[0059] like Figure 4 and Figure 6 As shown, in this embodiment, the rotating anemometer mounting bracket also includes a third bracket 3, one end of the third bracket 3 is connected to the nacelle cover, the other end of the third bracket 3 is connected to the first bracket 1 and is located on the same side as the limiting portion 11, and the third bracket 3, the first bracket 1 and the nacelle cover are sequentially enclosed in a triangle.

[0060] Specifically, the third bracket 3 is a rectangular tube, and flanges are provided at both ends of the third bracket 3, through holes are provided on the flanges, and flanges are also provided at the end of the first bracket 1 corresponding to the third bracket 3, so that the nacelle cover, the third bracket 3 and the first bracket 1 are connected by bolt assemblies to form a triangular structure, and the load capacity of the first bracket 1 is improved by utilizing the principle of strong stability of the triangular structure, so that it can carry the second bracket 2 and the anemometer 21, and improve the reliability and stability of the first bracket 1. Compared with welding, bolt connection can disassemble and assemble the first bracket 1 and the third bracket 3, improving the convenience of transportation and maintenance.

[0061] In other embodiments, reinforcing ribs are further provided between the flange on the third bracket 3 and the third bracket 3. Similarly, a flange is also provided at the end where the first bracket 1 is connected to the cabin cover, and reinforcing ribs are also provided between the flange and the first bracket 1. The reinforcing ribs are components used in the prior art to improve the structural strength and will not be elaborated on herein.

[0062] like Figure 2 As shown, in this embodiment, a channel for accommodating cables is provided in the first bracket 1 and the second bracket 2, and a cable connector 5 is provided at the connection between the first bracket 1 and the second bracket 2. The cable in the channel of the first bracket 1 extends to the channel of the second bracket 2 through the cable connector 5.

[0063] Specifically, the first bracket 1 and the second bracket 2 are both rectangular tubes, and a channel for accommodating cables is provided in the rectangular tubes. The cables are used to connect the anemometer 21 on the second bracket 2 and connect to the cabin cover. It should be noted that the cable connector 5 on the first bracket 1 is located on the limit portion 11, and the cable extends from the first bracket 1 to the limit portion 11 and extends out through the cable connector 5 on the limit portion 11. The second bracket 2 is correspondingly provided with a cable connector 5, so that when the second bracket 2 rotates, the cable can extend into the channel of the second bracket 2 through the external cable connector 5, so as to effectively extend the cable at the rotation connection between the first bracket 1 and the second bracket 2. Compared with the mode in which the cable directly extends from the second end of the first bracket 1 to the second bracket 2 and is provided near the rotation, the cable can be prevented from being entangled due to the influence of the rotation, and the cable can be prevented from being broken and damaged when the first bracket 1 and the second bracket 2 rotate, thereby improving reliability.

[0064] like Figure 4 and Figure 5 As shown, in this embodiment, the rotating part 4 includes a first ear plate 41, a second ear plate 42 and a rotating shaft 43, the first ear plate 41 is fixedly connected to the first bracket 1, the second ear plate 42 is fixedly connected to the second bracket 2, and the second ear plate 42 forms a hinge with the second end of the first bracket 1 through the rotating shaft 43.

[0065] Specifically, the first ear plate 41 and the second ear plate 42 are both rectangular plates, and the widths of the first ear plate 41 and the second ear plate 42 are both larger than the first bracket 1 and the second bracket 2. The first ear plate 41 is welded to the first bracket 1, and the second ear plate 42 is welded to the second bracket 2. The second ear plate 42 extends toward the second end of the first bracket 1 to form a protrusion, and the second end of the first bracket 1 is provided with a groove to accommodate the protrusion. The side wall of the groove and the protrusion are both provided with through holes for the shaft to pass through, thereby forming a hinge between the first bracket 1 and the second bracket 2. When the first ear plate 41 and the second ear plate 42 are attached to each other, the first bracket 1 and the second bracket 2 extend in the same height direction, and the first ear plate 41 can also limit the second bracket 2 to prevent the second bracket 2 from further rotating.

[0066] It is understandable that the first ear plate 41 and the second ear plate 42 are further provided with reinforcing ribs at the connection between the first bracket 1 and the second bracket 2 to enhance the structural strength of the first ear plate 41 and the second ear plate 42 .

[0067] In this embodiment, the rotating part 4 also includes a locking part 44, which is arranged on the first ear plate 41 and the second ear plate 42. When the locking part 44 is locked, the second bracket 2 and the first bracket 1 remain extended in the same height direction. When the locking part 44 is unlocked, the second bracket 2 rotates around the rotating part 4 and is limited by the limiting part 11.

[0068] Specifically, the edges of the first ear plate 41 and the second ear plate 42 are provided with through holes, and the locking portion 44 is a bolt assembly in the prior art, so that when the first ear plate 41 and the second ear plate 42 are attached to each other, the bolt assembly is locked to lock the second bracket 2 to prevent it from rotating and ensure that the anemometer 21 is at a preset working height. When the bolt assembly is unlocked, the second bracket 2 can rotate around the rotating portion 4 and then abut against the limiting portion 11 to lower the height of the anemometer 21, so that the maintenance personnel can maintain the anemometer 21 without climbing up.

[0069] In other embodiments, the locking portion 44 may also be a locking clamping structure in the prior art, such as the cooperation between a clamping groove and a clamping block, which is the prior art and will not be elaborated herein.

[0070] In this embodiment, a mounting portion 6 is provided on the second bracket 2 , the mounting portion 6 is arranged away from the first bracket 1 , and the anemometer 21 is detachably connected to the mounting portion 6 .

[0071] Specifically, the mounting portion 6 is a rectangular plate and is connected to the end of the second bracket 2 away from the first bracket 1. The end of the second bracket 2 away from the first bracket 1 is formed with three forks, each of which is provided with a mounting portion 6. The edge of the mounting portion 6 is provided with a through hole and is connected to the anemometer 21 through a bolt assembly. This improves the convenience of maintenance of the anemometer 21. It can be understood that channels for cables to pass through are formed in the three forks to achieve effective connection with each anemometer 21.

[0072] In addition, a lightning rod 61 is provided at the end of the second bracket 2 away from the first bracket 1. The lightning rod 61 is a structure in the prior art for receiving lightning strikes and protecting the anemometer 21. The lightning rod 61 is welded to the mounting portion 6 to improve the stability of the lightning rod 61.

[0073] In this embodiment, the limiting portion 11 extends toward the second bracket 2 and is disposed obliquely outward from the extending direction of the first bracket 1 .

[0074] Specifically, the end of the limiting portion 11 is used to abut the second bracket 2. In addition, the limiting portion 11 also includes a connecting rod, which is arranged obliquely along the extension direction of the first bracket 1. The cable connector 5 on the limiting portion 11 is arranged on the connecting rod, so that when the second bracket 2 abuts against the limiting portion 11, the connecting rod of the limiting portion 11, the second bracket 2 and the first bracket 1 are sequentially enclosed to form a triangular structure. By utilizing the principle of strong stability of the triangular structure, the load-bearing capacity of the limiting portion 11 and the stability when carrying the second bracket 2 are improved.

[0075] In this embodiment, a limiting groove 111 is provided at the end of the limiting portion 11 . The shape of the limiting groove 111 is the same as that of the second bracket 2 . The two side walls of the limiting groove 111 are correspondingly provided along a direction perpendicular to the rotation direction of the second bracket 2 .

[0076] Specifically, the limiting groove 111 is a "U"-shaped structure, and the opening of the "U"-shaped structure is the rotation direction of the second bracket 2. The side wall of the "U"-shaped structure is arranged perpendicular to the rotation direction of the second bracket 2. For example, the second bracket 2 rotates in the vertical direction, and the side wall of the limiting groove 111 limits the position of the second bracket 2 in the horizontal direction to prevent the second bracket 2 from moving in the horizontal direction when it abuts against the limiting groove 111, affecting the maintenance personnel's maintenance of the anemometer 21, thereby improving the stability of the second bracket 2 during maintenance.

[0077] In this embodiment, the rotating portion 4 is disposed in the middle area of ​​the second bracket 2 .

[0078] Specifically, the connection between the second bracket 2 and the rotating part 4 is located between the two ends of the second bracket 2, for example, the midpoint of the second bracket 2, that is, the middle area of ​​the rod body of the second bracket 2. Compared with the rotating part 4 being arranged at the end of the second bracket 2, the rotating connection arranged in the middle area of ​​the second bracket 2 can reduce the space on the cabin cover occupied by the second bracket 2 after the rotation when the second bracket 2 rotates. At the same time, the reduction in the rotation amplitude can avoid accidental injury to maintenance personnel, and when the rotation amplitude is reduced, the rotation of the second bracket 2 is smoother and more labor-saving, thereby reducing the difficulty of maintenance.

[0079] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A rotating anemometer mounting frame, characterized in that: The rotary anemometer mounting frame comprises: A first bracket, wherein a first end of the first bracket is connected to a nacelle cover of the wind turbine, and a limiting portion is provided on the first bracket; A second bracket, a wind meter is connected to the second bracket, the second bracket is connected to the second end of the first bracket, and a rotating part is provided at the connection between the first bracket and the second bracket, when the rotating part is locked, the first bracket and the second bracket extend in the same height direction, when the rotating part is unlocked, the second bracket abuts against the limiting part and the height of the wind meter is lower than the height when the rotating part is locked.

2. The rotary anemometer mounting bracket according to claim 1, characterized in that: The second bracket is provided with a limiting rod, the limiting rod extends toward the first bracket, and the limiting rod and the limiting portion are respectively located on two opposite sides of the first bracket.

3. The rotary anemometer mounting bracket according to claim 2, characterized in that: The rotary anemometer mounting bracket also includes a third bracket, one end of the third bracket is connected to the nacelle cover, the other end of the third bracket is connected to the first bracket and is located on the same side as the limiting portion, and the third bracket, the first bracket and the nacelle cover are sequentially arranged in a triangle.

4. The rotary anemometer mounting bracket according to claim 1, characterized in that: The first bracket and the second bracket are provided with channels for accommodating cables, and a cable connector is provided at the connection between the first bracket and the second bracket. The cables in the channel of the first bracket extend into the channel of the second bracket through the cable connector.

5. The rotary anemometer mounting bracket according to claim 1, characterized in that: The rotating part includes a first ear plate, a second ear plate and a rotating shaft, the first ear plate is fixedly connected to the first bracket, the second ear plate is fixedly connected to the second bracket, and the second ear plate and the second end of the first bracket form a hinge through the rotating shaft.

6. The rotary anemometer mounting bracket according to claim 5, characterized in that: The rotating part also includes a locking part, which is arranged on the first ear plate and the second ear plate. When the locking part is locked, the second bracket and the first bracket keep extending in the same height direction. When the locking part is unlocked, the second bracket rotates around the rotating part and is limited by the limiting part.

7. The rotary anemometer mounting bracket according to claim 1, characterized in that: The second bracket is provided with a mounting portion, the mounting portion is arranged away from the first bracket, and the anemometer is detachably connected to the mounting portion.

8. The rotary anemometer mounting bracket according to claim 1, characterized in that: The limiting portion extends toward the second bracket and is arranged obliquely outward from an extending direction of the first bracket.

9. The rotary anemometer mounting bracket according to claim 8, characterized in that: The limiting portion comprises a limiting groove, the shape of the limiting groove is the same as that of the second bracket, and two side walls of the limiting groove are correspondingly arranged along a direction perpendicular to the rotation direction of the second bracket.

10. The rotating anemometer mounting bracket according to any one of claims 1 to 9, characterized in that: The rotating portion is arranged in a middle area of ​​the second bracket.

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