Wind driven generator and cable supporting structure

Abstract

The utility model discloses a wind driven generator and a cable supporting structure, the wind driven generator comprises a rotating shaft, the rotating shaft is provided with a through hole in the axial direction, the cable supporting structure is arranged in the through hole in a penetrating mode to be at least used for supporting a cable, and the cable supporting structure comprises a fixing body, a supporting body and a connecting body. A plurality of fixing bodies are arranged in the through hole at intervals in the axial direction of the rotating shaft, and a first connecting hole and an avoiding part for a cable to pass through are arranged on each fixing body in a penetrating manner; the supporting body is arranged in the through hole in a penetrating mode and located between the two adjacent fixing bodies, a second connecting hole is formed in the supporting body in a penetrating mode, and a supporting space corresponding to the avoiding part is defined by the peripheral side face of the supporting body and the inner wall face of the through hole; the connecting body penetrates through the first connecting hole and the second connecting hole so as to connect the supporting body and the fixing body. The cable supporting structure at least can solve the problems that a generator cable supporting structure is high in manufacturing cost and poor in cable fixing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of cable support devices, in particular to a wind turbine and a cable support structure. Background Art

[0002] The cable lead wires of a doubly-fed wind turbine connect the rotor coils to the slip ring brush holders and typically pass through the rotor shaft. Because cable lead wires are inexpensive and require no multiple insulation steps like copper busbars, they are widely used in wind turbines. However, when passing the cable through the wind turbine shaft, it must be secured to prevent vibration and wear during rotation.

[0003] Existing solutions primarily secure the cable by grouting the lead-out hole of the shaft or by using a single, integral fixing structure directly within the shaft. However, the grouting method requires the shaft to be vertically hoisted for grouting. Due to the thin wall of the shaft hole, the shaft is prone to deformation during the hoisting process, affecting the motor's installation accuracy. Using a single, integral fixing structure directly within the shaft can lead to assembly difficulties due to manufacturing errors and other factors, and the cable is also prone to vibration and wear. Furthermore, this fixing method wastes a significant amount of material.

[0004] In addition, the existing technology also uses a copper busbar connection method to prevent the cable from shaking easily inside the shaft. However, this method not only requires the entire copper busbar to be inserted into the shaft, but also requires a support frame to fix the copper busbar inside the shaft, which results in excessively high production costs and is not conducive to production and manufacturing. Utility Model Content

[0005] The main purpose of the utility model is to provide a wind turbine generator and a cable support structure, which at least solves the problems of high manufacturing cost and poor cable fixing effect of the generator cable support structure.

[0006] According to one aspect of the present invention, a cable support structure is provided. The wind turbine includes a rotating shaft. A through hole is provided in the axial direction of the rotating shaft. The cable support structure is inserted into the through hole to at least support the cable. The cable support structure includes:

[0007] A fixed body, comprising a plurality of fixed bodies, each of which is spaced apart in the through hole along the axial direction of the rotating shaft, and a first connecting hole and an escape portion for allowing the cable to pass through the fixed body are formed through the fixed body;

[0008] a support body, the support body being arranged inside the rotating shaft and between two adjacent fixed bodies, the support body being provided with a second connecting hole, the peripheral side surface of the support body and the inner wall surface of the through hole enclosing a support space corresponding to the avoidance portion;

[0009] A connecting body is provided through the first connecting hole and the second connecting hole to connect the supporting body and the fixing body.

[0010] Furthermore, the fixed body is a block structure, the avoidance portion includes a avoidance groove provided on the outer peripheral side of the block structure, and the avoidance groove is provided in the block structure along the axial direction of the rotating shaft.

[0011] Furthermore, the block structure includes a disc-shaped structure, and the avoidance grooves include three, and the three avoidance grooves are evenly spaced around the outer circumference of the disc-shaped structure.

[0012] Furthermore, the fixed body includes a first fixed body and a second fixed body;

[0013] Wherein, the first fixing body includes a plurality of first fixing bodies, and the plurality of first fixing bodies are arranged at intervals along the axis direction of the through hole and are all located inside the through hole;

[0014] The second fixing body includes one, and the second fixing body is located at the end of the through hole and is adapted or interference-fitted with the through hole.

[0015] Furthermore, the cable support structure also includes an end plate, which is covered at the end of the rotating shaft and fixedly connected to the rotating shaft and the second fixed body. The end plate is provided with a wire passing hole, and the wire passing hole corresponds one-to-one to the avoidance portion.

[0016] Furthermore, the cable support structure also includes an end plate, which is covered on the end of the rotating shaft and fixedly connected to the rotating shaft. The end of the connector is fixed to the end plate, the cross-section of the first connecting hole and the cross-section of the second connecting hole are both polygonal surfaces, and the connector is a prism that is compatible with the polygonal surfaces.

[0017] Furthermore, the avoidance portion includes a avoidance groove provided on the outer peripheral side of the fixed body, the avoidance grooves include three, the cross section of the first connecting hole is an equilateral triangle, and the bases of the three avoidance grooves are respectively provided in parallel with the three sides of the equilateral triangle in a one-to-one correspondence; and / or,

[0018] The support body includes a triangular prism, the cross section of the second connection hole is an equilateral triangle, and the three sides of the second connection hole are arranged in parallel with the three faces of the triangular prism in a one-to-one correspondence.

[0019] Furthermore, the avoidance portion includes an avoidance groove provided on the outer peripheral side of the fixed body, the support body has a side surface flush with the groove bottom surface of the avoidance groove, and there is a clearance fit between the support body and the through hole.

[0020] Furthermore, along the length direction of the cable support structure, both ends of the connecting body are fixedly connected to the fixing body.

[0021] On the other hand, the present application also mentions a wind turbine, which includes the above-mentioned cable support structure.

[0022] In the present invention, the cable support structure is provided with multiple fixing bodies, with a supporting body disposed between two adjacent fixing bodies. The supporting bodies are connected to each other via a connector provided through a first connecting hole in the fixing body and a second connecting hole in the supporting body. Compared to the prior art method of using a single fixed structure to secure the cable, the cable support structure in the present application is primarily composed of independent fixing bodies, supporting bodies, and connectors. Each structure can be machined separately, making it easier to control machining precision and using less material, which can reduce the manufacturing cost of the cable support structure to a certain extent.

[0023] Furthermore, the fixing body of the present application is provided with a relief portion, and the peripheral side surface of the support body can be enclosed with the inner wall surface of the through-hole to form a support space corresponding to the relief portion. Thus, during actual assembly, the wind turbine cable can extend along the relief portion and the support space to pass through the through-hole. After installation, the fixing body and the support body can provide a certain positioning and support effect for the cable, making it less likely for the cable to shake and wear in the through-hole, and achieving a better fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 An exploded view of a cable support structure disclosed in an embodiment of the present utility model from a first perspective;

[0026] Figure 2 An exploded view of a cable support structure disclosed in an embodiment of the present utility model from a second perspective;

[0027] Figure 3 This is a structural diagram of the first fixed body disclosed in an embodiment of the present utility model;

[0028] Figure 4 This is a structural diagram of the second fixed body disclosed in an embodiment of the present utility model;

[0029] Figure 5 A structural diagram of a connector disclosed in an embodiment of the present utility model;

[0030] Figure 6 A structural diagram of a support body disclosed in an embodiment of the present utility model;

[0031] Figure 7 This is a structural diagram of the end plate disclosed in an embodiment of the present utility model;

[0032] Figure 8 A structural diagram from a first perspective of a rotating shaft equipped with a cable support structure disclosed in an embodiment of the present utility model;

[0033] Figure 9 This is a cross-sectional view from a second perspective of a rotating shaft equipped with a cable support structure disclosed in an embodiment of the present utility model.

[0034] The above drawings include the following reference numerals:

[0035] 10. Fixed body; 11. First fixed body; 12. Second fixed body; 101. First connecting hole; 102. Avoidance portion; 1021. Avoidance groove; 20. Support body; 201. Second connecting hole; 202. Support space; 30. Connecting body; 31. Prism; 40. End plate; 401. Wire hole; 50. Rotating shaft; 501. Through hole; 60. Cable. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0039] In order to solve the problems of high manufacturing cost and poor cable fixing effect of the generator cable support structure, according to the embodiment of the present application, a cable support structure is provided. The cable support structure of the present application will be described in detail below with reference to the accompanying drawings.

[0040] See also Figures 1 to 9 As shown, according to an embodiment of the present application, a cable support structure is provided, the wind turbine includes a rotating shaft 50, the rotating shaft 50 is axially provided with a through hole 501, the cable support structure is passed through the through hole 501 to at least support the cable 60, and the cable support structure includes a fixed body 10, a support body 20 and a connecting body 30.

[0041] The fixed body 10 comprises multiple fixed bodies 10, spaced apart along the axial direction of the rotating shaft 50 within the through-hole 501. Each fixed body 10 is provided with a first connection hole 101 and a relief portion 102 for passing the cable 60. A support body 20 is provided within the rotating shaft 50 and between two adjacent fixed bodies 10. A second connection hole 201 is provided through each support body 20. The circumferential surface of the support body 20 and the inner wall of the through-hole 501 define a support space 202 corresponding to the relief portion 102. A connector 30 is provided through the first and second connection holes 101, 201, to connect the support body 20 to the fixed body 10.

[0042] The cable support structure of the present application is provided with a plurality of fixed bodies 10, with a support body 20 disposed between two adjacent fixed bodies 10. The support bodies 20 are connected to the fixed bodies 10 via a connector 30 extending through a first connection hole 101 of the fixed body 10 and a second connection hole 201 of the support body 20. Compared to the prior art method of using a single fixed structure to secure the cable, the cable support structure of the present application is primarily composed of mutually independent fixed bodies 10, support bodies 20, and connectors 30. Each structure can be machined separately, making machining precision easier to control and requiring less material, which can reduce the manufacturing cost of the cable support structure to a certain extent.

[0043] Furthermore, the fixing body 10 of the present application is provided with a relief portion 102, and the peripheral side surface of the support body 20 can be enclosed with the inner wall surface of the through hole 501 to form a support space 202 corresponding to the relief portion 102. Thus, during actual assembly, the cable 60 of the wind turbine can extend along the relief portion 102 and the support space 202 to pass through the through hole 501. After installation, the fixing body 10 and the support body 20 can provide a certain positioning and support effect for the cable 60, making it less likely for the cable 60 to shake and wear in the through hole 501, and thus achieving a better fixation effect.

[0044] Further, see Figures 1 to 4 As shown, the fixed body 10 is a block structure, and the avoidance portion 102 includes an avoidance groove 1021 provided on the outer peripheral side of the block structure. The avoidance groove 1021 is provided through the block structure along the axial direction of the rotating shaft 50 .

[0045] Specifically, the axial direction of the rotating shaft 50 is Figure 1 and Figure 2 The direction indicated by y in the figure. In the present application, the avoidance portion 102 can be a fixed hole provided on the block structure along the axial direction of the rotating shaft 50, or a avoidance groove 1021 provided on the peripheral side of the block structure along the axial direction of the rotating shaft 50. This embodiment shows the case where the avoidance portion 102 is a avoidance groove 1021 provided on the peripheral side of the block structure. The avoidance groove 1021 can clamp the cable 60 on the fixed body 10. When the cable support structure is installed in the through hole 501 of the rotating shaft 50, as the rotating shaft 50 rotates in the wind turbine, the cable 60 can remain relatively stationary with respect to the fixed body 10. This allows the cable support structure of the present application to prevent the cable 60 from moving relative to the fixed body 10 along the circumferential direction of the fixed body 10.

[0046] Further, see Figures 1 to 4 As shown, the block structure includes a disc-shaped structure, and includes three avoidance grooves 1021 , which are evenly spaced around the periphery of the disc-shaped structure.

[0047] For example, the block structure can be square, elliptical, or disc-shaped. This embodiment illustrates a disc-shaped block structure. Furthermore, the number of escape grooves 1021 can be one, two, or more. This embodiment illustrates a case where there are three escape grooves 1021. In this embodiment, the three escape grooves 1021 are evenly spaced around the periphery of the disc-shaped structure. This arrangement can reduce dynamic imbalance during the rotation of the shaft 50, thereby ensuring smoother rotation of the shaft 50 and reducing the impact of vibration of the shaft 50 on the securement of the cable 60.

[0048] Further, see Figures 1 to 4 As shown, the fixing body 10 includes a first fixing body 11 and a second fixing body 12. The first fixing body 11 includes a plurality of first fixing bodies 11, which are spaced apart along the axis of the through hole 501 and are all located inside the through hole 501. The second fixing body 12 includes a single second fixing body 12, which is located at the end of the through hole 501 and is adapted or interference fit with the through hole 501.

[0049] Specifically, the first fixing body 11 and the through hole 501 can be adapted or clearance-fitted. To facilitate installation of the first fixing body 11 into the through hole 501, this embodiment illustrates a clearance-fitted situation between the first fixing body 11 and the through hole 501. Furthermore, the first fixing body 11 can include one, two, or more than two. This embodiment illustrates a situation where there are three first fixing bodies 11. Furthermore, a support body 20 is provided between each of the two adjacent fixing bodies 10, i.e., a support body 20 is provided between each of the two adjacent first fixing bodies 11, and a support body 20 is also provided between the second fixing body 12 and the adjacent first fixing body 11. The main function of the first fixing body 11 is to secure the cable 60 within the through hole 501 and prevent the cable 60 from moving in the circumferential direction of the first fixing body 11. During actual assembly, the operator can wrap an insulating layer around the cable 60 and then assemble it with the cable support structure of the present application. Therefore, the first fixing body 11 can also prevent the cable 60 from moving in the axial direction of the rotating shaft 50. Since the second fixing body 12 is adapted or interference fit with the through hole 501, after the cable support structure is assembled, the second fixing body 12 has the function of the first fixing body 11, and can prevent the cable support structure of the present application from moving in the axial direction of the rotating shaft 50 to a certain extent, and can also prevent the cable support structure of the present application from rotating in the circumferential direction of the rotating shaft 50 to a certain extent, thereby playing a better fixing role for the cable 60.

[0050] Further, see Figure 1 、 Figure 2 、 Figure 7 as well as Figure 8As shown, the cable support structure also includes an end plate 40, which is covered on the end of the rotating shaft 50 and fixedly connected to the rotating shaft 50 and the second fixed body 12. A wire hole 401 is provided on the end plate 40, and the wire hole 401 corresponds one-to-one to the avoidance portion 102.

[0051] Specifically, the end plate 40 and the rotating shaft 50 can be fixed by welding, clamping, or threading. This embodiment shows that the end plate 40 and the rotating shaft 50 are fixed by bolting. At the same time, the end plate 40 and the second fixed body 12 can also be fixed by welding, clamping, or threading. This embodiment shows that the end plate 40 and the second fixed body 12 are fixed by bolting. In the present application, the end plate 40 is fixedly connected to both the rotating shaft 50 and the second fixed body 12. This arrangement allows the second fixed body 12 and the rotating shaft 50 to remain relatively stationary during the rotation of the rotating shaft 50, thereby better fixing the cable 60. In addition, the end plate 40 is covered at the end of the rotating shaft 50. This arrangement allows the end plate 40 to block the through hole 501, thereby preventing the cable support structure from falling out of the through hole 501 from the end of the rotating shaft 50 to a certain extent.

[0052] Further, see Figures 1 to 6 As shown, the cable support structure also includes an end plate 40, which is covered on the end of the rotating shaft 50 and fixedly connected to the rotating shaft 50. The end of the connector 30 is fixed to the end plate 40. The cross-section of the first connecting hole 101 and the cross-section of the second connecting hole 201 are both polygonal surfaces, and the connector 30 is a prism 31 adapted to the polygonal surface.

[0053] Specifically, during actual assembly, the operator can fix the connecting body 30 to the second fixed body 12. Since the second fixed body 12 and the end plate 40 are fixedly connected, the connecting body 30 can be fixed to the end plate 40. In addition, the connecting body 30 can also be directly fixed to the end plate 40. This embodiment shows that the connecting body 30 is fixed to the end plate 40 via the second fixed body 12. In addition, the connecting body 30 and the second fixed body 12 can be fixed by welding, clamping, and threading. In this example, the connecting body 30 and the second fixed body 12 are connected by bolts. The cross-section of the first connecting hole 101 is the cross-section obtained by cutting the fixed body 10 along the axial direction perpendicular to the rotating shaft 50. Similarly, the cross-section of the second connecting hole 201 is the cross-section obtained by cutting the support body 20 along the axial direction perpendicular to the rotating shaft 50. Since the cross-sections of the first connecting hole 101 and the second connecting hole 201 are both polygonal surfaces, and the connecting body 30 is a prism 31 that matches the polygonal surface, when the connecting body 30 is fixed to the rotating shaft 50 through the end plate 40 and both ends of the connecting body 30 are fixedly connected to the fixed body 10, the fixed body 10 and the support body 20 located inside the through hole 501 can maintain a relatively stationary state with the rotating shaft 50 during the rotation of the rotating shaft 50, which enables the cable support structure of the present application to effectively fix the cable 60.

[0054] Further, see Figures 1 to 4 、 Figure 6 As shown, the avoidance portion 102 includes three avoidance grooves 1021 arranged on the outer peripheral side of the fixed body 10. The cross-section of the first connecting hole 101 is an equilateral triangle, and the bases of the three avoidance grooves 1021 are respectively arranged in parallel with the three sides of the equilateral triangle in a one-to-one correspondence.

[0055] Specifically, the present application arranges the bases of the three escape grooves 1021 parallel to the three sides of the equilateral triangle in a one-to-one correspondence. This arrangement prevents the fixing body 10 from being easily damaged due to the wall surface of the first connection hole 101 being too close to the base of the escape groove 1021. If the bases of the three escape grooves 1021 were not arranged parallel to the three sides of the equilateral triangle in a one-to-one correspondence, the closer the corner of the equilateral triangle of the first connection hole 101 is to the base of the escape groove 1021, the smaller the minimum thickness between the first connection hole 101 and the base of the escape groove 1021, which can easily damage the fixing body 10.

[0056] Optionally, the support body 20 includes a triangular prism, the cross section of the second connection hole 201 is an equilateral triangle, and the three sides of the second connection hole 201 are arranged in parallel with the three faces of the triangular prism in a one-to-one correspondence.

[0057] Specifically, the present application can individually arrange the bases of the three avoidance grooves 1021 in parallel with the three sides of the equilateral triangle, or individually arrange the three sides of the second connection hole 201 in parallel with the three faces of the triangular prism. Alternatively, the three sides of the second connection hole 201 can be arranged in parallel with the three faces of the triangular prism while the three sides of the three avoidance grooves 1021 are arranged in parallel with the three sides of the equilateral triangle. This embodiment illustrates the case where the bases of the three avoidance grooves 1021 are arranged in parallel with the three sides of the equilateral triangle while the three sides of the second connection hole 201 are arranged in parallel with the three faces of the triangular prism. This arrangement can prevent the fixing body 10 from being easily damaged due to the wall surface of the first connection hole 101 being too close to the base of the avoidance groove 1021, and can also prevent the support body 20 from being easily damaged due to the wall surface of the second connection hole 201 being too thin.

[0058] Further, see Figures 2 to 6 、 Figure 8 as well as Figure 9 As shown, the avoidance portion 102 includes an avoidance groove 1021 provided on the outer peripheral side of the fixing body 10 , the support body 20 has a side surface flush with the groove bottom surface of the avoidance groove 1021 , and there is a clearance fit between the support body 20 and the through hole 501 .

[0059] Specifically, in the present application, after the operator sequentially puts the first fixing body 11, the supporting body 20 and the second fixing body 12 on the connecting body 30, the connecting body 30 is rotated in the axial direction of the rotating shaft 50 (ie Figure 2 In the embodiment of the present invention, the side surfaces of the avoidance grooves 1021 and the corresponding side surfaces of the support body 20 form a flat surface. This arrangement can ensure that the cable support structure of the present application has a better effect on fixing the cable 60. Because if the side surfaces of the support body 20 are not flush with the bottom surfaces of the avoidance grooves 1021, when the cable support structure of the present application is used to fix the cable 60, there will be a problem of unreliable fixation of the cable 60 in some positions between the cable support structure and the wall of the through hole 501. Therefore, the present application sets the side surfaces of the support body 20 to be flush with the bottom surfaces of the avoidance grooves 1021. In addition, the present application sets the support body 20 and the through hole 501 to be a clearance fit in order to ensure that it is easier for the operator to install the cable support structure into the through hole 501.

[0060] Further, see Figures 1 to 9 As shown, along the length direction of the cable support structure, both ends of the connector 30 are fixedly connected to the fixed body 10. Figure 1 and Figure 2The direction indicated by y in the figure. In the present application, both ends of the connector 30 are fixedly connected to the fixed body 10. This arrangement is to prevent the fixed body 10 and the support body 20 on the connector 30 from moving along the length direction of the cable support structure, so that the fixation of the cable 60 is more reliable. In this embodiment, one end of the connector 30 is fixedly connected to the first fixed body 11 by means of a bolt connection, and the other end of the connector 30 is fixedly connected to the second fixed body 12 by means of a bolt connection. With this arrangement, the segmented cable support structure can be assembled into a whole, and since the second fixed body 12 is fixedly connected to the end plate 40 by bolts, and the end plate 40 is fixedly connected to the rotating shaft 50 by bolts, the entire cable support structure is fixed in the through hole 501 of the rotating shaft 50.

[0061] Further, see Figure 1 、 Figure 2 as well as Figure 9 As shown, the present application provides a wind turbine, which includes the cable support structure disclosed in the present application. After the operator assembles the cable support structure of the present application, he then wraps each cable 60 led out of the through hole 501 of the rotating shaft 50 of the wind turbine with an insulating layer. Then, each cable 60 is respectively clamped in the cable installation part of the cable support structure, and then the cable support structure is inserted into the through hole 501. Finally, the cable support structure is fixed on the rotating shaft 50, which can play a good fixing and supporting role for the cable 60 inside the rotating shaft 50 of the wind turbine. When the wind turbine is working, the cable support structure inside the rotating shaft 50 can prevent the cable 60 from shaking relative to the rotating shaft 50 inside the rotating shaft 50, thereby effectively preventing damage to the cable 60.

[0062] From the above, it can be seen that the present application, by providing a cable support structure consisting of a fixing body 10, a supporting body 20, a connecting body 30, and an end plate 40, can solve the problems of high manufacturing costs and poor cable 60 fixation in generator cable support structures. The present application abandons the conventional integral generator cable support structure and instead adopts a segmented cable support structure, which not only facilitates assembly but also saves on raw materials required for production. Furthermore, unlike conventional methods of grouting the interior of the rotating shaft 50 or using conductive rods and copper busbars, the present cable support structure directly secures the cable 60, which is relatively inexpensive, thus reducing manufacturing costs. Furthermore, because the present application does not require the use of a large number of copper busbars, the present cable support structure can save material costs. Furthermore, the present application utilizes a combination of the fixing body 10 and the supporting body 20, avoiding the material waste that would otherwise occur if the entire cable support structure were fixed, thereby reducing manufacturing costs. On the basis of the segmented setting, the present application rationally designs the structures of the fixed body 10, the supporting body 20, the connecting body 30 and the end plate 40, so that the cable support structure of the present application can play a good fixing and supporting role for the cable 60 inside the rotating shaft 50.

[0063] It can be seen that the cable support structure of the present application, by providing a simple segmented structure, is easy to install and can also solve the problems of high manufacturing cost and poor cable fixing effect of the generator cable support structure.

[0064] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0065] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0066] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cable support structure, wherein a wind turbine comprises a rotating shaft (50), wherein the rotating shaft (50) is provided with a through hole (501) in an axial direction, and wherein the cable support structure is passed through the through hole (501) to at least support a cable (60), wherein the cable support structure is provided in the through hole (501) to support a cable (60), The cable support structure comprises: A fixed body (10), the fixed body (10) comprising a plurality of fixed bodies (10), the plurality of fixed bodies (10) being arranged at intervals in the through hole (501) along the axial direction of the rotating shaft (50), the fixed body (10) being provided with a first connecting hole (101) and an avoidance portion (102) for allowing the cable (60) to pass through; A support body (20), the support body (20) is arranged inside the rotating shaft (50) and between two adjacent fixed bodies (10), a second connecting hole (201) is provided through the support body (20), and the peripheral side surface of the support body (20) and the inner wall surface of the through hole (501) are arranged to form a support space (202) corresponding to the avoidance portion (102); A connecting body (30) is provided through the first connecting hole (101) and the second connecting hole (201) to connect the supporting body (20) and the fixing body (10).

2. The cable support structure according to claim 1, characterized in that The fixed body (10) is a block structure, and the avoidance portion (102) includes a avoidance groove (1021) provided on the outer peripheral side of the block structure, and the avoidance groove (1021) is provided in the block structure along the axial direction of the rotating shaft (50).

3. The cable support structure according to claim 2, characterized in that The block structure comprises a disc-shaped structure, and the avoidance grooves (1021) comprise three, and the three avoidance grooves (1021) are evenly spaced around the outer circumference of the disc-shaped structure.

4. The cable support structure according to claim 1, characterized in that The fixed body (10) includes a first fixed body (11) and a second fixed body (12); The first fixing body (11) includes a plurality of first fixing bodies (11), which are spaced apart along the axial direction of the through hole (501) and are all located inside the through hole (501); The second fixing body (12) includes one, and the second fixing body (12) is located at the end of the through hole (501) and is adapted or interference-fitted with the through hole (501).

5. The cable support structure according to claim 4, characterized in that The cable support structure further comprises an end plate (40), the end plate (40) being covered on the end of the rotating shaft (50) and being fixedly connected to both the rotating shaft (50) and the second fixed body (12), the end plate (40) being provided with a wire hole (401), the wire hole (401) corresponding one-to-one to the avoidance portion (102).

6. The cable support structure according to claim 1, characterized in that The cable support structure further comprises an end plate (40), wherein the end plate (40) is covered on the end of the rotating shaft (50) and is fixedly connected to the rotating shaft (50), the end of the connector (30) is fixed to the end plate (40), the cross-section of the first connecting hole (101) and the cross-section of the second connecting hole (201) are both polygonal surfaces, and the connector (30) is a prism (31) adapted to the polygonal surface.

7. The cable support structure according to claim 6, characterized in that The avoidance portion (102) comprises a avoidance groove (1021) provided on the outer peripheral side of the fixed body (10), the avoidance grooves (1021) comprise three, the cross section of the first connecting hole (101) is an equilateral triangle, and the bases of the three avoidance grooves (1021) are respectively provided in parallel with the three sides of the equilateral triangle in a one-to-one correspondence; and / or, The support body (20) comprises a triangular prism, the cross section of the second connection hole (201) is an equilateral triangle, and the three sides of the second connection hole (201) are arranged in parallel with the three faces of the triangular prism in a one-to-one correspondence.

8. The cable support structure according to claim 6, characterized in that The avoidance portion (102) includes an avoidance groove (1021) arranged on the outer peripheral side of the fixed body (10), the support body (20) has a side surface flush with the groove bottom surface of the avoidance groove (1021), and there is a clearance fit between the support body (20) and the through hole (501).

9. The cable support structure according to any one of claims 1 to 8, characterized in that: Along the length direction of the cable support structure, both ends of the connecting body (30) are fixedly connected to the fixed body (10).

10. A wind turbine, characterized in that: The wind turbine comprises the cable supporting structure according to any one of claims 1 to 9.

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