A cable clamping structure applied to a wind turbine generator system

Abstract

The utility model relates to wind power generation equipment technical field discloses a cable clamping structure for wind turbine generator system, including guide piece and placing piece, guide piece fixed mounting is on wind turbine generator, and the one end of guide piece is communicated with the cable connection point on wind turbine generator, and guide piece guides the cable on wind turbine generator to the placing piece, placing piece includes fixed part and guide part, and fixed part fixed mounting is on wind turbine generator, and the one end of guide part is communicated with guide piece, and the projection of cable connection point on guide part is located in the different direction of guide part along vertical direction, make the position, direction of cable connection point on placing piece with the equipment position that cable needs to connect correspond, thus each cable of wind turbine generator can keep relative static when wind turbine generator adjusts direction, further avoid the insulating skin damage of cable between because of friction, knock and lead to, thereby solved the problem of cable in the prior art easy to cause the accident because of the knock, friction of wind turbine generator rotation.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation equipment technology, and in particular to a cable clamping structure applied to wind turbine generator sets. Background Technology

[0002] During actual operation, wind turbine generators automatically yaw to adjust the orientation of the rotor as the ambient wind direction changes, thereby maximizing wind energy capture. During yaw, the power cables inside the nacelle and on the tower will rotate accordingly. The cables on the tower are generally protected by a twisted cable structure, but the power cables at the top of the tower and the nacelle interface are still relatively concentrated in one location.

[0003] During yaw, these cables are prone to collisions and friction, which can cause bulging and damage to the cable insulation layer, leading to quality and safety accidents such as cable short circuits and fires. Utility Model Content

[0004] The purpose of this utility model is to provide a cable clamping structure for wind turbine generator sets, which solves the problem that cables are prone to accidents due to bumps and friction when the wind turbine generator sets rotate.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: In the first aspect, this utility model provides a cable clamping structure for wind turbine generator sets, including a guide and a placement component; The guide is fixedly installed on the wind turbine, and one end of the guide is connected to the cable outlet on the wind turbine. The guide guides the wind turbine cable to the placement piece. The placement component includes a fixing part and a guiding part. The fixing part is fixedly installed on the wind turbine. One end of the guiding part is connected to the guiding component. The projection of the cable outlet of the guiding part along the vertical direction is located in different directions of the guiding part.

[0006] As an optional solution, the fixing part includes a fixing frame and a mounting plate; The top of the fixing frame is fixedly installed on the structural beam of the wind turbine, the length of the fixing frame extends downward in the vertical direction, and the bottom of the fixing frame is fixedly connected to the mounting plate. The lower surface of the mounting plate is flush with the bottom surface of the wind turbine.

[0007] As an optional solution, the guide section includes a hanging plate; The top surface of the hanging plate is fixedly connected to the bottom surface of the mounting plate. The projection of the hanging plate along the vertical direction is a regular polygon, and at least two cable hanging holes are opened on the side wall of the hanging plate in any direction.

[0008] As an optional feature, the guide section may also include several cable clamps; The cable clamp has several cable through holes in the vertical direction. The cable clamp is fixedly installed on the top surface of the mounting plate. The mounting plate has several clearance grooves. Several of the cable clamps are disposed above the hanging plate, and the cable hanging hole, the clearance groove and the cable through hole are connected to allow the cable to pass through.

[0009] As an optional solution, the cable clamp block is provided with a cable pressure plate and a fixing component; The cable pressure plate has fixing holes corresponding to the cable through holes. The fixing holes cooperate with the fixing components to fix the cable passing through the cable through holes.

[0010] As an optional feature, the portion of the guide that contacts the cable is provided with a flexible pad.

[0011] As an optional feature, the placement device is also provided with a cable hanging net to prevent the cable from spreading outwards.

[0012] This utility model has the following unexpected beneficial effects: 1. This utility model provides a guide and a placement component. The guide is fixed to the wind turbine and guides the wind turbine cable to the placement component. The placement component guides the cable to different directions through cable outlets, thus distributing the cable on the wind turbine to different directions. This avoids collisions and friction between cables after the wind turbine rotates, thereby solving the problem in the prior art where cables are prone to accidents due to collisions and friction when the wind turbine rotates.

[0013] 2. This utility model uses a mechanical clamping mechanism composed of cable clamping blocks, cable clamping plates and fixing parts to provide a firm grip on the cable, thereby preventing the cable from loosening or falling off due to vibration during long-term operation. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model.

[0015] Figure 1 This is an overall schematic diagram of the cable clamping structure according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the guide component of the cable clamping structure according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the placement component of the cable clamping structure according to an embodiment of this utility model; Figure 4 This is an exploded view of the placement component of the cable clamping structure according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the fixing part of the cable clamping structure according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the guide portion of the cable clamping structure according to an embodiment of the present invention; In the figure, 1 is the guide; 2 is the placement component; 201 is the fixing part; 2011 is the fixing frame; 2012 is the mounting plate; 2012a is the clearance groove; 2013 is the threaded mounting plate; 202 is the guide part; 2021 is the hanging plate; 2021a is the cable hanging hole; 2022 is the cable clamp; and 2022a is the cable through hole. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0017] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should be understood that the terms "connected," "linked," and "fixed," etc., used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a welded connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] In one embodiment, such as Figures 1 to 6 As shown, in a first aspect, the present invention provides a cable clamping structure for use in wind turbine generator sets, including a guide 1 and a placement member 2.

[0020] The guide 1 is fixedly installed on the wind turbine. One end of the guide 1 is connected to the cable outlet on the wind turbine. The guide 1 guides the wind turbine cable to the placement piece 2. The guiding direction of the guide 1 is the extension direction of its length.

[0021] The cable outlet on the wind turbine is a built-in structure of the wind turbine, specifically a cable junction point from which cables inside the wind turbine pipeline extend to connect to equipment at the nacelle interface.

[0022] The placement component 2 includes a fixing part 201 and a guiding part 202. The fixing part 201 is fixedly installed on the wind turbine. One end of the guiding part 202 is connected to the guiding component 1. The cable outlet points of the guiding part 202 are projected vertically in different directions. The cable outlet points here have the same function as the cable outlet points on the wind turbine, but a single cable contact point of the guiding part 202 is only used to fix the cable in one direction. The number of cable outlet points on the guiding part 202 is not further limited here, and its number can match the number of devices located at the nacelle interface that requires cable connection.

[0023] Based on this, both the guide 1 and the placement 2 are fixedly installed on the wind turbine. The guide 1 connects the cable outlet of the wind turbine to the placement 2. After the cable on the wind turbine moves along the guide 1 to the placement 2, it passes through the cable outlets in different directions on the placement 2 and connects to the equipment at the nacelle interface. Since the position and direction of the cable outlet on the placement 2 correspond to the position of the equipment to be connected to the cable, each cable of the wind turbine can remain relatively stationary when the wind turbine adjusts its direction. This avoids damage to the insulation of the cables due to friction and collision, thus solving the problem in the prior art where cables are prone to accidents due to collision and friction when the wind turbine rotates.

[0024] Furthermore, such as Figures 1 to 6 As shown, the fixing part 201 includes a fixing frame 2011 and a mounting plate 2012. At this time, the fixing frame 2011 is the connection point between the placement member 2 and the guide member 1.

[0025] The top of the fixing frame 2011 is fixedly installed on the structural beam of the wind turbine. The length of the fixing frame 2011 extends downward in the vertical direction. The bottom of the fixing frame 2011 is fixedly connected to the mounting plate 2012. The cooperation between the fixing frame 2011 and the mounting plate 2012 realizes a stable connection between the placement component 2 and the wind turbine (such as the tower beam).

[0026] The fixing frame 2011 is a frame consisting of a horizontal beam and two vertical beams. The two ends of the horizontal beam are fixedly connected to the two vertical beams respectively, and the two vertical beams face the same direction. At this time, the area enclosed by the horizontal beam and the vertical beams is the cable storage area. The end face of the horizontal beam away from the vertical beams is fixedly connected to the structural beam of the wind turbine.

[0027] The lower surface of the mounting plate 2012 is flush with the bottom surface of the wind turbine. At this time, the wind turbine is aligned and connected with the nacelle. The bottom surface of the wind turbine is the installation point of the nacelle equipment. Therefore, the cable extending from the lower surface of the mounting plate 2012 can be directly connected to the nacelle equipment, thereby ensuring the standardization of the installation position of the entire placement component 2 and maintaining the cleanliness of the internal structure of the tower.

[0028] Furthermore, such as Figures 1 to 6 As shown, the guide section 202 includes a hanging plate 2021.

[0029] The top surface of the hanging plate 2021 is fixedly connected to the bottom surface of the mounting plate 2012. The projection of the hanging plate 2021 along the vertical direction is a regular polygon, and at least two cable hanging holes 2021a are opened on the side wall of the hanging plate 2021 in any direction.

[0030] The number of sides of the regular polygon is not further limited here. The regular polygon can be an equilateral triangle, a regular quadrilateral, a regular pentagon, a regular hexagon, etc. The number of sides depends on the installation position of the nacelle equipment and the actual rotation angle required by the wind turbine. When the wind turbine rotates by one gear, its nacelle interface is directly opposite one of the side walls of the hanging plate 2021. The cable is reinstalled through the corresponding cable passage hole to achieve reassembly with the nacelle equipment. This improves the cable wiring standard while ensuring the working performance of the cable after the wind turbine rotates.

[0031] Furthermore, such as Figures 1 to 6 As shown, the guide portion 202 also includes a plurality of cable clamps 2022.

[0032] The cable clamp 2022 has several cable through holes 2022a in the vertical direction. The cable clamp 2022 is fixedly installed on the top surface of the mounting plate 2012. The mounting plate 2012 has several clearance grooves 2012a.

[0033] The installation method of the cable clamp 2022 and the mounting plate 2012 is not further limited here. In order to ensure the fixing effect, the top surface of the mounting plate 2012 extends out of the threaded mounting plate 2013, and the threaded mounting plate 2013 is fixedly connected to the cable clamp 2022 by bolts.

[0034] The cable clamp 2022 is made of nylon plastic.

[0035] Several cable clamps 2022 are disposed above the hanging plate 2021, and the cable hanging hole 2021a, the clearance groove 2012a and the cable through hole 2022a are connected to allow the cable to pass through.

[0036] The number of cable clamps 2022 is not further limited here. Since the cable clamps 2022 need to ensure that the cable can be clamped and fixed on the corresponding hanging plate 2021 when the wind turbine rotates to any angle, at least one cable clamp 2022 is provided on each of the hanging plates 2021 to reduce the bending of the cable when passing through the cable hanging hole 2021a, the avoidance groove 2012a and the cable through hole 2022a. If necessary, a cable clamp 2022 can be provided at the center of the mounting plate 2012 to gather and fix the excess cable (such as the grounding cable), thereby providing a solid anchor point for the cable installation, preventing the dynamic stress generated by the vibration and shaking of the wind turbine from being transmitted to the fragile bending point of the cable, and further increasing the service life of the cable.

[0037] Furthermore, such as Figures 1 to 6 As shown, the cable clamp block 2022 is provided with a cable pressure plate and a fixing component.

[0038] The cable pressure plate has a fixing hole corresponding to the cable through hole 2022a. The fixing hole cooperates with the fixing member to fix the cable passing through the cable through hole 2022a.

[0039] The structure of the fastener is not further limited here. The fastener is a variety of standard parts (such as bolts). The fastener uses mechanical clamping to press the cable more firmly into the cable through hole 2022a of the cable clamp block 2022, thereby ensuring that the cable will not loosen, shift or wear due to vibration during long-term operation, and further improving the reliability of clamping.

[0040] Furthermore, this embodiment, which is not shown in the accompanying drawings, has a flexible pad provided at the part of the guide 1 that contacts the cable.

[0041] Since the guide 1 guides the cable to the position of the fixing frame 2011, the guide 1 and the fixing frame 2011 are designed to be easily connected to ensure the continuity of the installation. However, the structure of the fixing frame 2011 and the guide 1 is not further limited here. When the guide 1 is a tubular structure, the cable of the wind turbine extends through the hollow of the guide 1 and connects with the placement piece 2, and the flexible pad is laid inside the tubular part. When the guide 1 is a frame, the structure of the guide 1 is the same as that of the fixing frame 2011, and the flexible pad is laid in the beam wall where the horizontal and vertical beams are adjacent to each other. When the guide 1 uses a tubular structure, the guide 1 can prevent the cable insulation from contacting the outside, thereby protecting the cable. However, due to the limitations of the tube wall and the flexible pad, the guide 1 using a tubular structure has disadvantages in terms of processing technology and accommodation space compared with the guide 1 using a frame.

[0042] The material of the flexible pad is not further limited here. The flexible pad can be made of materials such as rubber, polyurethane and engineering plastics according to actual needs.

[0043] Furthermore, this embodiment is not shown in the accompanying drawings, and the placement member 2 is also provided with a cable hanging net to prevent the cable from spreading outwards.

[0044] The cable hanging net is a large hanging net made of nylon material. After installation, it will hold the cable to prevent it from falling due to clamping or installation failure.

[0045] The installation method of the placement component 2 and the cable hanging net is not further limited here. When the cable is installed using the hanging plate 2021, the side wall of any of the hanging plates 2021 is also provided with a hanging point for installing the cable hanging net.

[0046] In summary, the cable clamping structure described in this utility model achieves the reinstallation of cables after the wind turbine rotates by setting up a guide frame and a placement frame. The guide frame connects the cable outlet point on the wind turbine to the placement frame. The placement frame guides the cable to the cable outlet points located in different directions on it through the guide part 202, so that each cable of the wind turbine can remain relatively stationary when the wind turbine adjusts its direction, thereby avoiding insulation damage caused by friction and collision between cables. This solves the problem in the prior art that cables are prone to accidents due to collision and friction when the wind turbine rotates.

[0047] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A cable clamping structure for use in wind turbine generator sets, characterized in that, Includes a guide (1) and a placement component (2); The guide (1) is fixedly installed on the wind turbine. One end of the guide (1) is connected to the cable outlet on the wind turbine. The guide (1) guides the cable on the wind turbine to the placement piece (2). The placement component (2) includes a fixing part (201) and a guiding part (202). The fixing part (201) is fixedly installed on the wind turbine. One end of the guiding part (202) is connected to the guiding component (1). The projection of the cable outlet point on the guiding part (202) along the vertical direction is located in different directions of the guiding part (202).

2. The cable clamping structure according to claim 1, characterized in that, The fixing part (201) includes a fixing frame (2011) and a mounting plate (2012); The top of the fixing frame (2011) is fixedly installed on the structural beam of the wind turbine, the length of the fixing frame (2011) extends downward in the vertical direction, and the bottom of the fixing frame (2011) is fixedly connected to the mounting plate (2012). The lower surface of the mounting plate (2012) is flush with the bottom surface of the wind turbine.

3. The cable clamping structure according to claim 2, characterized in that, The guide (202) includes a hanging plate (2021); The top surface of the hanging plate (2021) is fixedly connected to the bottom surface of the mounting plate (2012). The projection of the hanging plate (2021) in the vertical direction is a regular polygon, and at least two cable hanging holes (2021a) are opened on the side wall of the hanging plate (2021) in any direction.

4. The cable clamping structure according to claim 3, characterized in that, The guide section (202) also includes a plurality of cable clamps (2022); The cable clamp (2022) has several cable through holes (2022a) in the vertical direction. The cable clamp (2022) is fixedly installed on the top surface of the mounting plate (2012). The mounting plate (2012) has several clearance grooves (2012a). Several of the cable clamps (2022) are disposed above the hanging plate (2021), and the cable hanging hole (2021a), the clearance groove (2012a) and the cable through hole (2022a) are connected to allow the cable to pass through.

5. The cable clamping structure according to claim 4, characterized in that, The cable clamp (2022) is provided with a cable pressure plate and a fixing component; The cable pressure plate has a fixing hole corresponding to the cable through hole (2022a). The fixing hole cooperates with the fixing member to fix the cable passing through the cable through hole (2022a).

6. The cable clamping structure according to claim 1, characterized in that, The part of the guide (1) that contacts the cable is provided with a flexible pad.

7. The cable clamping structure according to claim 1, characterized in that, The placement component (2) is also provided with a cable hanging net to prevent the cable from spreading outwards.

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