Cable protection device for wind generating set

Abstract

The utility model belongs to the technical field of cable protection, and particularly relates to a cable protection device for a wind generating set, which comprises an outer sleeve and an inner sleeve, the inner sleeve and the outer sleeve are coaxially arranged, the inner sleeve is arranged inside the outer sleeve, and a cavity for a cable to penetrate through is formed between the inner sleeve and the outer sleeve. A plurality of connecting grooves are evenly distributed in the circumference of the outer sleeve, a plurality of connecting parts are evenly distributed on the outer wall of the inner sleeve, first connecting holes are formed in the connecting parts, and first bolt assemblies are arranged in the first connecting holes and the connecting grooves and used for connecting the inner sleeve and the outer sleeve. The protection device can be divided into a plurality of limiting cavities, namely the annular cavity between the outer sleeve and the inner sleeve and the cavity in the inner sleeve, so that protection can be separated in sequence, the main cable and the signal lines are separated, more effective protection can be achieved, and friction between the main cable and the signal lines is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable protection, and particularly relates to a cable protection device for a wind turbine generator set. Background Art

[0002] A wind turbine generator is a device that converts wind energy into electrical energy. Its basic principle is that the wind drives the blades of the wind wheel to rotate, converting the kinetic energy of the wind into mechanical energy, and then converting the mechanical energy into electrical energy through a generator.

[0003] A wind power supply consists of a wind turbine generator set, a tower for supporting the generator set, a battery charging controller, an inverter, a load unloader, a grid connection controller, a battery pack, etc.; the wind turbine generator set includes a wind wheel and a generator; the wind wheel consists of blades, a hub, reinforcement members, etc.; it has functions such as generating electricity when the blades are rotated by the wind and the rotation of the generator head. When the wind turbine generator implements yaw control or the main cable swings, since the main cable and signal cables of the wind turbine generator are directly placed in a circular ring, the friction between the main cable and each signal cable and the friction between the cable and the circular ring are likely to cause wear of the main cable and signal data cables, thereby affecting the service life of the main cable and signal data cables; and when there is no protection and limit for the cables, multiple cables are likely to move around each other, making it difficult to achieve stable limit protection. Summary of the Utility Model

[0004] Aiming at the technical problems existing in the background art, the utility model provides a cable protection device for a wind turbine generator set, which can effectively regularize and limit multiple cables and provide protection.

[0005] To achieve the above object, the technical solution provided by the utility model is as follows:

[0006] A cable protection device for a wind turbine generator set includes an outer sleeve and an inner sleeve. The inner sleeve and the outer sleeve are coaxially arranged. The inner sleeve is arranged inside the outer sleeve, and a cavity for passing cables is formed between the inner sleeve and the outer sleeve; a plurality of connecting grooves are evenly distributed on the circumference of the outer sleeve, a plurality of connecting parts are evenly distributed on the outer wall of the inner sleeve, a first connecting hole is arranged on the connecting part, and a first bolt assembly is arranged in the first connecting hole and the connecting groove for connecting the inner sleeve and the outer sleeve.

[0007] Optionally, a first limiting groove is respectively arranged on both sides of the connecting part, and the cable is cooperatively arranged in the first limiting groove.

[0008] Optionally, the inner sleeve includes two semi - inner sleeves that can be spliced with each other. The two ends of the inner sleeve are respectively provided with abutting parts, a second limiting groove is arranged on the outer wall of the abutting part, the cable is cooperatively arranged in the second limiting groove, and the abutting parts of the two inner sleeves are tightly abutted against each other.

[0009] Optionally, the cable protection device for a wind turbine further includes a connection assembly. The connection assembly includes a first fixing block, a first arc-shaped block and a second arc-shaped block arranged on both sides of the first fixing block. The first fixing block is arranged on the upper part of the abutting portion. The inner wall of the first arc-shaped block is closely attached to the inner wall of the inner sleeve, and the inner wall of the second arc-shaped block is closely attached to the outer wall of the outer sleeve.

[0010] Optionally, at least one second connection hole is provided on the second arc-shaped block, and a first locking screw is threadedly connected in the second connection hole. The first locking screw passes through the connection groove and abuts against the outer wall of the inner sleeve.

[0011] Optionally, avoidance grooves one are respectively provided on both sides of the first fixing block, and the avoidance grooves one are aligned with the limiting grooves two.

[0012] Optionally, the cable protection device for a wind turbine further includes a mounting assembly. The mounting assembly includes a third arc-shaped block, a second fixing block and a fourth arc-shaped block. A plurality of second fixing blocks are evenly distributed on the inner wall of the bottom end of the third arc-shaped block. A fourth arc-shaped block is arranged at the upper end of the second fixing block. The third arc-shaped block is closely attached to the outer wall of the outer sleeve. The fourth arc-shaped block is closely attached to the inner wall of the inner sleeve. The bottom end of the outer sleeve is closely attached to the second fixing block. The second fixing blocks are respectively aligned with the connecting portion and the abutting portion.

[0013] Optionally, the mounting assembly further includes a mounting seat integrally connected to the third arc-shaped block.

[0014] Optionally, avoidance grooves two are respectively provided on both sides of the second fixing block, and the avoidance grooves two are aligned with the limiting groove one and the limiting groove two.

[0015] Optionally, a protruding portion is provided on one abutting portion of the inner sleeve, and a groove cooperating with the protruding portion is provided on the other abutting portion.

[0016] The utility model has the following advantages and beneficial effects:

[0017] In the present utility model, a cable protection device for a wind turbine generator includes an outer sleeve and an inner sleeve. A cavity for passing a cable is formed between the inner sleeve and the outer sleeve; the inner sleeve and the outer sleeve are connected by a first bolt assembly. With such a design, the cavity defined by the inner sleeve and the outer sleeve can limit and protect the cable. In this structure, a number of cables can be limited in an annular cavity. In the prior art, a number of cables are all arranged in a single sheath, which results in easy movement between the cables and difficulty in limiting them. Friction occurs between the main cable and each signal cable, as well as between the cables and the sheath, causing wear of the main cable and signal data cables. The protection device of the present invention can be divided into multiple limiting cavities, namely the annular cavity between the outer sleeve and the inner sleeve, and the cavity inside the inner sleeve, so that sequential separate protection can be achieved. By separating the main cable from each signal cable, more effective protection can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural diagram of the cable protection device provided by the present utility model for protecting a cable;

[0019] Figure 2 is Figure 1 a top view;

[0020] Figure 3 is one of the structural diagrams of the cable protection device provided by the present utility model;

[0021] Figure 4 is another structural diagram of the cable protection device provided by the present utility model;

[0022] Figure 5 is a top view of the cable protection device provided by the present utility model;

[0023] Figure 6 is a structural diagram of the outer sleeve provided by the present utility model;

[0024] Figure 7 is one of the structural diagrams of the inner sleeve provided by the present utility model;

[0025] Figure 8 is another structural diagram of the inner sleeve provided by the present utility model;

[0026] Figure 9 is Figure 8 a top view;

[0027] Figure 10 is a structural diagram of the connection component provided by the present utility model;

[0028] Figure 11 is Figure 10 a bottom view;

[0029] Figure 12 is a structural diagram of the installation component provided by the present utility model;

[0030] Figure 13 is Figure 12 the top view of;

[0031] Figure 14 is Figure 13 the front view of;

[0032] Icon: 1 - outer sleeve, 1a - cavity, 11 - connecting groove, 12 - connecting block, 13 - third connecting hole, 2 - inner sleeve, 21 - connecting part, 22 - first limiting groove, 23 - first connecting hole, 24 - abutting part, 25 - second limiting groove, 26 - protruding part, 27 - groove, 3 - first fixing block, 31 - first arc-shaped block, 32 - second arc-shaped block, 33 - second connecting hole, 34 - first avoiding groove, 4 - third arc-shaped block, 41 - fourth connecting hole, 42 - mounting seat, 43 - fifth connecting hole, 5 - second fixing block, 51 - fourth arc-shaped block, 52 - second avoiding groove, 6 - first bolt assembly, 7 - first locking screw, 8 - second bolt assembly, 9 - second locking screw. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model.

[0034] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] Embodiment

[0036] As Figures 1 to 14 shown, a cable protection device for a wind turbine generator includes an outer sleeve 1 and an inner sleeve 2. The inner sleeve 2 and the outer sleeve 1 are coaxially arranged, the inner sleeve 2 is arranged inside the outer sleeve 1, and an annular cavity 1a for passing a cable is formed between the inner sleeve 2 and the outer sleeve 1. A plurality of connecting grooves 11 are evenly distributed on the circumference of the outer sleeve 1. The connecting grooves 11 are evenly distributed in several layers along the axial direction of the outer sleeve 1, and multiple connecting grooves are provided in each layer. A plurality of connecting parts 21 are evenly distributed on the outer wall of the inner sleeve 2. A plurality of first connecting holes 23 are provided on the connecting parts 21. A first bolt assembly 6 is arranged in the first connecting holes 23 and the connecting grooves 11 for connecting the inner sleeve 2 and the outer sleeve 1.

[0037] In the present utility model, the cavity 1a formed by the inner sleeve 2 and the outer sleeve 1 can limit and protect the cables. With this structure, several cables can be limited within an annular cavity 1a. In the prior art, several cables are all arranged within a single sheath, which easily leads to the cables moving around and being difficult to limit. The friction between the main cable and each signal cable, as well as the friction between the cables and the sheath, causes wear on the main cable and the signal data cables. The protection device of the present invention can be divided into multiple limiting cavities, namely the annular cavity 1a between the outer sleeve 1 and the inner sleeve 2, and the cavity 1a inside the inner sleeve 2. Thus, sequential separate protection can be achieved, separating the main cable from each signal cable, and more effective protection can be realized.

[0038] Furthermore, on both sides of the connecting portion 21, a first limiting groove 22 is respectively provided. The inner diameter of the first limiting groove 22 is equivalent to the outer diameter of the cable, and the cable can be correspondingly arranged within the first limiting groove 22.

[0039] As a preferred embodiment, in the present utility model, both the inner sleeve 2 and the outer sleeve 1 are provided with a detachable and spliceable structure for easy disassembly and assembly. The inner sleeve 2 includes two semi-circular inner sleeves 2 that can be spliced with each other. The two semi-circular inner sleeves 2 can be spliced into a circular inner sleeve 2. On each semi-circular inner sleeve 2, two connecting portions 21 are symmetrically provided. At both ends of the inner sleeve 2, abutting portions 24 are respectively provided. The abutting portions 24 and the connecting portions 21 are arranged at intervals. On the outer wall of the abutting portion 24, a second limiting groove 25 is provided. The inner diameter of the second limiting groove 25 is equivalent to the outer diameter of the cable, and the cable can be correspondingly arranged within the second limiting groove 25. The abutting portions 24 of two inner sleeves 2 are closely abutted against each other, thereby forming an annular and circular inner sleeve 2.

[0040] The outer sleeve 1 includes two semi-circular outer sleeves 1 that can be spliced with each other. The two semi-circular outer sleeves 1 can be spliced into a circular outer sleeve 1. On each semi-circular outer sleeve 1, two connecting blocks 12 are provided. On the connecting blocks 12, two third connecting holes 13 are provided. After the two outer sleeves 1 are spliced, the two connecting blocks 12 are butted against each other, and by passing a second bolt assembly 8 through the third connecting holes 13, the two outer sleeves 1 can be connected into one body, thereby forming an annular and circular outer sleeve 1. On each semi-circular outer sleeve 1, five layers of connecting grooves 11 are provided, and the number of each layer of connecting grooves 11 is three.

[0041] In the present utility model, the cable protection device for a wind turbine further includes a connection assembly. The connection assembly includes a first fixing block 3, a first arc-shaped block 31 and a second arc-shaped block 32 arranged on both sides of the first fixing block 3. The outer diameter of the first arc-shaped block 31 is equivalent to the inner diameter of the inner sleeve 2, and the inner diameter of the second arc-shaped block 32 is equivalent to the outer diameter of the outer sleeve 1. The first fixing block 3 is arranged on the upper part of the abutting portion 24. The bottom wall of the first fixing block 3 is tightly attached to the upper end surface of the outer sleeve 1. The outer wall of the first arc-shaped block 31 is tightly attached to the inner wall of the inner sleeve 2. The inner wall of the second arc-shaped block 32 is tightly attached to the outer wall of the outer sleeve 1. Thus, through the connection assembly, at the junction of the two inner sleeves 2, that is, at the position of the abutting portion 24, a connection assembly is arranged to connect and limit, strengthening the connection stability and connection strength at the junction of the two inner sleeves 2.

[0042] Further, at least one second connection hole 33 is provided on the second arc-shaped block 32. A first locking screw 7 is threadedly connected in the second connection hole 33. The first locking screw 7 passes through the connection groove 11 and abuts against the outer wall of the inner sleeve 2. With such a design, the connection assembly can be fixed on the outer sleeve 1 and is in close contact with the abutting portion 24 of the two inner sleeves 2 to achieve limit fixation, further strengthening the connection effect between the inner sleeve 2 and the outer sleeve 1.

[0043] As a preferred connection method, each semi-circular inner sleeve 2 is connected to two semi-circular outer sleeves 1. That is, after the two semi-circular outer sleeves 1 are connected into one body by the second bolt assembly 8, one semi-circular inner sleeve 2 is first installed, so that the two connection portions 21 of the semi-circular inner sleeve 2 are respectively connected to the two semi-circular outer sleeves 1, that is, the second bolt assembly 8 is located between the two connection portions 21 of the same semi-circular inner sleeve 2. With such a design, while installing the inner sleeve 2, the connection between the inner sleeve 2 and the two semi-circular outer sleeves 1 is also made more stable.

[0044] Further, avoidance grooves 34 are respectively provided on both sides of the first fixing block 3. The avoidance grooves 34 are aligned with the second limiting grooves 25. With such a design, when the cable is arranged in the second limiting grooves 25, the cable can pass through upward without interfering with the first fixing block 3.

[0045] In the present utility model, for the cable protection device of a wind turbine generator, it further includes an installation assembly. The installation assembly includes a third arc-shaped block 4, a second fixing block 5, and a fourth arc-shaped block 51. A plurality of second fixing blocks 5 are evenly distributed on the inner wall of the bottom end of the third arc-shaped block 4. The number of the second fixing blocks 5 is three. A fourth arc-shaped block 51 is arranged at the upper end of the second fixing block 5. The inner diameter of the third arc-shaped block 4 is equivalent to the outer diameter of the outer sleeve 1, and the outer diameter of the fourth arc-shaped block 51 is equivalent to the inner diameter of the inner sleeve 2. The third arc-shaped block 4 is arranged closely against the outer wall of the outer sleeve 1, and the fourth arc-shaped block 51 is arranged closely against the inner wall of the inner sleeve 2. The bottom end of the outer sleeve 1 is arranged closely against the second fixing block 5; the second fixing blocks 5 are respectively opposite to the connecting part 21 and the abutting part 24 (the middle second fixing block 5 is opposite to the abutting part 24, and the two second fixing blocks 5 at both ends are opposite to the connecting part 21), which does not affect the cable passing through.

[0046] Further, a plurality of fourth connecting holes 41 are arranged on the third arc-shaped block 4. A second locking screw 9 can be threadedly connected in the fourth connecting holes 41. The second locking screw 9 passes through the connecting groove 11 on the outer sleeve 1, and the end of the second locking screw 9 abuts against the outer wall of the fourth arc-shaped block 51. In this way, the installation assembly can be firmly fixed on one of the semi-circular outer sleeves 1.

[0047] Further, the installation assembly further includes an installation seat 42 integrally connected with the third arc-shaped block 4. A plurality of fifth connecting holes 43 are arranged on the installation seat 42. Through the installation seat 42, the whole protection device can be installed inside the tower of the wind turbine generator.

[0048] Further, avoiding grooves two 52 are respectively arranged on both sides of the second fixing block 5. The avoiding grooves two 52 are opposite to the limiting groove one 22 and the limiting groove two 25. The avoiding grooves two 52 on the two second fixing blocks 5 at both ends are opposite to the limiting groove one 22, and the avoiding grooves two 52 on the middle second fixing block 5 are opposite to the limiting groove two 25, which does not affect the cable passing through and allows the cable to pass out from both sides of the lower second fixing block 5.

[0049] Further, a convex portion 26 is arranged on one abutting part 24 of each semi-circular inner sleeve 2, and a groove 27 cooperating with the convex portion 26 is arranged on the other abutting part 24. The two semi-circular inner sleeves 2 are precisely clamped by the concave-convex cooperation at both ends.

[0050] As Figure 1 、 Figure 2 shown, a cable is arranged in the cavity 1a between the inner sleeve 2 and the outer sleeve 1, which can realize regular limiting. And various signal lines (not shown in the figure) can be arranged inside the inner sleeve 2, so that the main cable and the signal lines can be separately and regularly protected to avoid mutual movement and abrasion.

[0051] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cable protection device for a wind turbine generator set, characterized in that : comprising an outer sleeve and an inner sleeve, the inner sleeve and the outer sleeve are coaxially arranged, the inner sleeve is arranged inside the outer sleeve, and a cavity for passing the cable is formed between the inner sleeve and the outer sleeve; The outer sleeve has a plurality of connection grooves evenly distributed on its circumference, the inner sleeve has a plurality of connection parts evenly distributed on its outer wall, the connection parts are provided with a connection hole 1, and a first bolt assembly is provided in the connection hole 1 and the connection groove for connecting the inner sleeve and the outer sleeve.

2. The cable protection device for a wind turbine generator set according to claim 1, characterized in that: A limiting groove one is respectively arranged on both sides of the connecting portion, and the cable is cooperatively arranged in the limiting groove one.

3. The cable protection device for a wind turbine generator set according to claim 2, characterized in that: The inner sleeve comprises two semicircular inner sleeves which can be connected to each other. Abutment parts are respectively arranged at both ends of the inner sleeve. The outer wall of the abutment part is provided with a second limiting groove. The cable is arranged in the second limiting groove. The abutment parts of the two inner sleeves are arranged tightly against each other.

4. The cable protection device for a wind turbine generator set according to claim 3, characterized in that: It also includes a connecting component, which includes a first fixed block and a first arc block and a second arc block arranged on both sides of the first fixed block, the first fixed block is arranged at the upper part of the abutment part, the inner wall of the first arc block is arranged closely to the inner wall of the inner sleeve, and the inner wall of the second arc block is arranged closely to the outer wall of the outer sleeve.

5. The cable protection device for a wind turbine generator set according to claim 4, characterized in that: The second arc block is provided with at least one second connecting hole, in which a first locking screw is threadedly connected. The first locking screw passes through the connecting groove and is arranged to press against the outer wall of the inner sleeve.

6. The cable protection device for a wind turbine generator set according to claim 4, characterized in that: The first fixing block is provided with a first avoidance groove on both sides, and the first avoidance groove is directly opposite to the second limiting groove.

7. The cable protection device for a wind turbine generator set according to claim 4, characterized in that: It also includes an installation component, which includes a third arc block, a second fixed block and a fourth arc block, a plurality of second fixed blocks are evenly distributed on the inner wall of the bottom end of the third arc block, a fourth arc block is arranged on the upper end of the second fixed block, the third arc block is arranged close to the outer wall of the outer sleeve, the fourth arc block is arranged close to the inner wall of the inner sleeve, and the bottom end of the outer sleeve is arranged close to the second fixed block; the second fixed blocks are respectively opposite to the connecting portion and the abutting portion.

8. The cable protection device for a wind turbine generator set according to claim 7, characterized in that: The mounting assembly also includes a mounting seat integrally connected to the third arc-shaped block.

9. The cable protection device for a wind turbine generator set according to claim 7, characterized in that: The second fixing block is provided with avoidance grooves 2 on both sides respectively, and the avoidance grooves 2 are directly opposite to the limiting grooves 1 and 2.

10. The cable protection device for a wind turbine generator set according to claim 7, characterized in that: A protrusion is arranged on one abutting portion of the inner sleeve, and a groove matched with the protrusion is arranged on the other abutting portion.

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