Threading pipe for cable installation of wind generating set

Abstract

The utility model discloses a threading pipe for cable installation of a wind generating set, which comprises a threading pipe body, a plurality of guide rolling frames are installed on the inner side of the threading pipe body, a connecting flange is fixedly installed at one end of the threading pipe body, a steering hollow ball head is installed at one end of the connecting flange, and a plurality of guide rolling frames are installed on the inner side of the threading pipe body. A connecting sliding ring is installed on the outer side of the end, close to the connecting flange, of the steering hollow ball head, an arc-shaped blocking plate is slidably connected to the inner side of the end, away from the connecting flange, of the steering hollow ball head, and a wire conveying flange is installed on the inner side of the middle of the arc-shaped blocking plate. The guide rolling frame comprises an annular mounting frame, a plurality of rolling mounting seats are mounted on the inner side of the annular mounting frame, and the rolling mounting seats are movably connected with the annular mounting frame through limiting rods. According to the utility model, the cable is supported in a multi-section manner, so that contact and friction between the cable and the threading pipe are effectively avoided, the protection effect is good, and the transmission direction of the cable can be freely adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of threading pipes, in particular to a threading pipe for cable installation of a wind turbine generator set. Background Technique

[0002] In a wind turbine generator set, the pitch system rotates with the hub and the main shaft, while the main control system in the nacelle is stationary. To prevent cable twisting and realize the power supply and communication between the pitch system and the main control system, a threading pipe needs to be set at the output end of the speed increaser box and the driving end of the generator to connect the two sections and keep them synchronized, that is, without relative movement. The left joint of the threading pipe is connected to the speed increaser box, and the right joint of the threading pipe is connected to the generator. The commonly used threading pipes in wind power generation mainly include various types such as CPVC power pipes and MPP power pipes, and these pipes play an important role in cable protection in the wind power generation system.

[0003] When the existing threading pipes for wind power generator sets install cables, the cable is prone to friction with the threading pipe during the cable transmission process, resulting in damage to the cable skin, and it is not convenient to adjust the cable in any transmission direction; therefore, it does not meet the existing requirements, and for this reason, we propose a threading pipe for cable installation of a wind turbine generator set. Content of the Utility Model

[0004] The purpose of the utility model is to provide a threading pipe for cable installation of a wind turbine generator set to solve the problems that when the existing threading pipes for wind power generator sets install cables, the cable is prone to friction with the threading pipe during the cable transmission process, resulting in damage to the cable skin, and it is not convenient to adjust the cable in any transmission direction, etc. mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A threading pipe for cable installation of a wind turbine generator set, including a threading pipe body, wherein a plurality of guiding rolling frames are installed inside the threading pipe body, one end of the threading pipe body is fixedly installed with a connecting flange, one end of the connecting flange is installed with a steering hollow ball head, a connecting slip ring is installed on the outer side of the steering hollow ball head near one end of the connecting flange, an arc-shaped sealing plate is slidably connected to the inner side of the steering hollow ball head far from one end of the connecting flange, and a wire transmission flange is installed on the inner side of the middle of the arc-shaped sealing plate;

[0006] The guiding rolling frame includes an annular installation frame, a plurality of rolling installation seats are installed inside the annular installation frame, the rolling installation seats are movably connected with the annular installation frame through limiting rods, an arc-shaped guiding ring is movably connected to the inner side of one end of the rolling installation seat, a supporting roller is installed inside the arc-shaped guiding ring, and a connecting roller shaft is fixedly installed on the inner side of the supporting roller.

[0007] Preferably, the wire threading pipe body is composed of two semi-circular pipe bodies, which are fixedly welded between the two semi-circular pipe bodies. The connecting flange and the annular mounting frame are both fixedly connected to the two semi-circular pipe bodies by screws.

[0008] Preferably, the connecting slip ring is sleeved on the outside of the connecting flange and fixedly connected to the steering hollow ball head. The connecting slip ring and the steering hollow ball head are both rotatably connected to the connecting flange. The steering hollow ball head is connected to the inside of the wire threading pipe body through the connecting flange.

[0009] Preferably, one end of the wire transmission flange penetrates through the middle of the arc-shaped sealing plate and is inserted into the inside of the steering hollow ball head. The wire transmission flange is fixedly connected to the arc-shaped sealing plate, and the wire transmission flange is connected to the inside of the steering hollow ball head.

[0010] Preferably, one end of the limiting rod penetrates through the middle of the rolling mounting seat and is threadedly connected to the annular mounting frame. A shock pad is provided between the rolling mounting seat and the annular mounting frame. The rolling mounting seat is rotatably connected to the support roller through a connecting roller shaft. The arc-shaped guide ring is fixedly connected to the support roller.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. When the cable passes through the wire transmission flange, the steering hollow ball head, the connecting flange and the multiple guiding rolling frames in sequence, the cable can be effectively bundled and protected. At the same time, the wire transmission flange is fixedly connected to the arc-shaped sealing plate, and the arc-shaped sealing plate is slidably connected to the steering hollow ball head, so that when the wire transmission flange swings relative to the center of the steering hollow ball head through the arc-shaped sealing plate, the transmission direction of the cable can be adjusted once. At the same time, the steering hollow ball head rotates relative to the connecting flange through the connecting slip ring, and then the angle of the wire transmission flange can be further adjusted, so as to facilitate the secondary adjustment of the transmission direction of the cable and meet the stable wire threading of the cable and the arbitrary adjustment of the transmission direction;

[0013] 2. In the present invention, the multiple guiding rolling frames are uniformly arranged along the axis of the wire threading pipe body, so that the multiple arc-shaped guide rings and support rollers in each guiding rolling frame can effectively support the cable in multiple sections by rolling relative to the rolling mounting seat through the connecting roller shaft, avoiding the cable from rubbing against the inner wall of the wire threading pipe body during wire threading and causing damage to the epidermis. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0015] Figure 2 is a schematic cross-sectional structural diagram of the whole of the present invention;

[0016] Figure 3This is a partial sectional structure schematic diagram of the steering hollow ball head of the present utility model;

[0017] Figure 4 This is a structure schematic diagram of the guiding rolling frame of the present utility model.

[0018] In the figure: 1, wire threading pipe body; 2, steering hollow ball head; 3, wire transmission flange; 4, guiding rolling frame; 5, connecting flange; 6, arc-shaped sealing plate; 7, connecting slip ring; 8, annular mounting frame; 9, rolling mounting seat; 10, limiting rod; 11, arc-shaped guiding ring; 12, supporting roller; 13, connecting roller shaft. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] Please refer to Figure 1 , Figure 2 and Figure 4 , an embodiment provided by the present utility model: a wire threading pipe for cable installation of a wind power generation unit, including a wire threading pipe body 1. The wire threading pipe body 1 is composed of two semi-circular pipe bodies, and the two semi-circular pipe bodies are fixedly welded. The connecting flange 5 and the annular mounting frame 8 are both fixedly connected to the two semi-circular pipe bodies by screws. A plurality of guiding rolling frames 4 are installed inside the wire threading pipe body 1. The guiding rolling frame 4 includes an annular mounting frame 8. A plurality of rolling mounting seats 9 are installed inside the annular mounting frame 8. The rolling mounting seat 9 is movably connected to the annular mounting frame 8 by a limiting rod 10. One end of the limiting rod 10 penetrates through the middle of the rolling mounting seat 9 and is threadedly connected to the annular mounting frame 8. A shock-absorbing pad is provided between the rolling mounting seat 9 and the annular mounting frame 8, and through the shock-absorbing pad, it is convenient for the rolling mounting seat 9 to elastically support the cable;

[0021] The inner side of one end of the rolling mounting seat 9 is movably connected to an arc-shaped guiding ring 11. A supporting roller 12 is installed inside the arc-shaped guiding ring 11. A connecting roller shaft 13 is fixedly installed inside the supporting roller 12. The rolling mounting seat 9 is rotationally connected to the supporting roller 12 by the connecting roller shaft 13. The arc-shaped guiding ring 11 is fixedly connected to the supporting roller 12. Through the circumferential arrangement of a plurality of arc-shaped guiding rings 11 and supporting rollers 12, the cable can be effectively supported in all directions.

[0022] Please refer to Figures 1 to 3, one end of the wire threading pipe body 1 is fixedly installed with a connecting flange 5, one end of the connecting flange 5 is installed with a steering hollow ball head 2, a sliding connection is arranged inside the end of the steering hollow ball head 2 far from the connecting flange 5 with an arc-shaped sealing plate 6, an inner side of the middle of the arc-shaped sealing plate 6 is installed with a wire transmission flange 3, one end of the wire transmission flange 3 penetrates through the middle of the arc-shaped sealing plate 6 and is inserted into the inside of the steering hollow ball head 2, the wire transmission flange 3 is fixedly connected with the arc-shaped sealing plate 6, and the wire transmission flange 3 is connected through the inside of the steering hollow ball head 2, so that when the wire transmission flange 3 swings relative to the center of the steering hollow ball head 2 through the arc-shaped sealing plate 6, the transmission direction of the cable can be adjusted once;

[0023] An outer side of the end of the steering hollow ball head 2 close to the connecting flange 5 is installed with a connecting slip ring 7, the connecting slip ring 7 is sleeved on the outer side of the connecting flange 5 and is fixedly connected with the steering hollow ball head 2, both the connecting slip ring 7 and the steering hollow ball head 2 are rotationally connected with the connecting flange 5, the inside of the steering hollow ball head 2 and the wire threading pipe body 1 are connected through the connecting flange 5, and the steering hollow ball head 2 rotates relative to the connecting flange 5 through the connecting slip ring 7, so that the angle of the wire transmission flange 3 can be further adjusted, and thus it is convenient to perform a secondary adjustment on the transmission direction of the cable, meeting the requirements of stable wire threading of the cable and arbitrary adjustment of the transmission direction.

[0024] During use, when threading the cable of the wind turbine generator, two semi-circular pipe bodies are welded to form the wire threading pipe body 1, so that the cable can be threaded through 1. Specifically, one end of the wire threading pipe body 1 is fixedly connected with the connecting flange 5, the connecting flange 5 is rotationally connected with both the steering hollow ball head 2 and the connecting slip ring 7. When the cable passes through the wire transmission flange 3, the steering hollow ball head 2, the connecting flange 5 and between multiple guiding rolling frames 4 in sequence, the cable can be effectively bundled and protected;

[0025] At the same time, the wire transmission flange 3 is fixedly connected with the arc-shaped sealing plate 6, and the arc-shaped sealing plate 6 is slidably connected with the steering hollow ball head 2, so that when the wire transmission flange 3 swings relative to the center of the steering hollow ball head 2 through the arc-shaped sealing plate 6, the transmission direction of the cable can be adjusted once. At the same time, the steering hollow ball head 2 rotates relative to the connecting flange 5 through the connecting slip ring 7, so that the angle of the wire transmission flange 3 can be further adjusted, and thus it is convenient to perform a secondary adjustment on the transmission direction of the cable, meeting the requirements of stable wire threading of the cable and arbitrary adjustment of the transmission direction. Multiple guiding rolling frames 4 are uniformly arranged along the axis of the wire threading pipe body 1, so that multiple arc-shaped guiding rings 11 and supporting rollers 12 in each guiding rolling frame 4 can roll relative to the rolling mounting seat 9 through the connecting roller shaft 13, effectively supporting the cable in multiple sections, and preventing the cable from rubbing against the inner wall of the wire threading pipe body 1 during wire threading, causing damage to the epidermis.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A cable threading tube for installing a wind turbine generator set, comprising a threading tube body (1), characterized in that: A plurality of guide rolling frames (4) are installed on the inner side of the threading tube body (1); a connecting flange (5) is fixedly installed on one end of the threading tube body (1); a steering hollow ball head (2) is installed on one end of the connecting flange (5); a connecting slip ring (7) is installed on the outer side of the steering hollow ball head (2) close to the connecting flange (5); an arc-shaped sealing plate (6) is slidably connected to the inner side of the steering hollow ball head (2) away from the connecting flange (5); and a wire transmission flange (3) is installed on the inner side of the middle part of the arc-shaped sealing plate (6); The guide rolling frame (4) comprises an annular mounting frame (8), a plurality of rolling mounting seats (9) are mounted on the inner side of the annular mounting frame (8), the rolling mounting seats (9) are movably connected to the annular mounting frame (8) via a limit rod (10), an arc-shaped guide ring (11) is movably connected to the inner side of one end of the rolling mounting seat (9), a supporting roller (12) is mounted on the inner side of the arc-shaped guide ring (11), and a connecting roller shaft (13) is fixedly mounted on the inner side of the supporting roller (12).

2. A cable installation threading tube for a wind turbine generator set according to claim 1, characterized in that: The threading tube body (1) is composed of two semi-circular tubes, which are fixed by welding, and the connecting flange (5) and the annular mounting frame (8) are both connected and fixed to the two semi-circular tubes by screws.

3. A cable installation threading tube for a wind turbine generator set according to claim 1, characterized in that: The connecting slip ring (7) is sleeved on the outside of the connecting flange (5) and is fixedly connected to the steering hollow ball head (2); the connecting slip ring (7) and the steering hollow ball head (2) are both rotatably connected to the connecting flange (5); the steering hollow ball head (2) is connected to the inside of the threading tube body (1) through the connecting flange (5).

4. A cable installation threading tube for a wind turbine generator set according to claim 1, characterized in that: One end of the line transmission flange (3) passes through the middle of the arc-shaped sealing plate (6) and is plugged into the inner side of the steering hollow ball head (2); the line transmission flange (3) is fixedly connected to the arc-shaped sealing plate (6); and the line transmission flange (3) is connected to the inside of the steering hollow ball head (2).

5. A cable installation threading tube for a wind turbine generator set according to claim 1, characterized in that: One end of the limit rod (10) passes through the middle of the rolling mounting seat (9) and is connected to the annular mounting frame (8) by means of a thread; a shock-absorbing pad is provided between the rolling mounting seat (9) and the annular mounting frame (8); the rolling mounting seat (9) is rotationally connected to the support roller (12) by means of a connecting roller shaft (13); and the arc-shaped guide ring (11) is fixedly connected to the support roller (12).

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