阅读说明：本技术 风力发电机组及其扭缆保护系统 (Wind generating set and cable twisting protection system thereof ) 是由 骆光进 陈庆 张�杰 周扬 候承宇 任涛 尚婷 彭棠 郭松龄 钟晓玲 于 2021-09-26 设计创作，主要内容包括：本发明公开了一种扭缆保护系统,用于塔筒内电缆的保护,该扭缆保护系统包括连接绳、分隔盘、限位摆动支架及摆臂机构。连接绳固定于机舱上并延伸至塔筒内,连接绳沿分隔盘的轴向串联至少两个分隔盘,分隔盘上设有多个贯穿分隔盘的容纳孔。摆动限位支架套设于分隔盘外用于限定横向摆动,摆臂机构与底部的分隔盘连接,摆臂机构可以在连接绳的拉动下摆动,并限位与其连接的分隔盘自转。本发明还公开了一种风力发电机组,包括上述扭缆保护系统。上述风力发电机组及其扭缆保护系统,可以约束电缆的位置的,避免多根电缆在偏航过程扭转在一起,减少动力电缆之间的碰磨,可以降低电缆自身受力,限制电缆横向移动作用,并尽量避免电缆扭转缠绕集束。(The invention discloses a twisted cable protection system which is used for protecting cables in a tower barrel. The connecting rope is fixed on the engine room and extends into the tower drum, the connecting rope is connected with at least two separating discs in series along the axial direction of the separating discs, and a plurality of accommodating holes penetrating through the separating discs are formed in the separating discs. The swing limiting support is sleeved outside the separation disc and used for limiting transverse swing, the swing arm mechanism is connected with the separation disc at the bottom, and the swing arm mechanism can swing under the pulling of the connecting rope and limit the rotation of the separation disc connected with the swing arm mechanism. The invention also discloses a wind generating set which comprises the twisted cable protection system. The wind generating set and the cable twisting protection system thereof can restrain the positions of the cables, prevent a plurality of cables from being twisted together in the yawing process, reduce the collision and abrasion among power cables, reduce the stress of the cables, limit the transverse movement of the cables, and prevent the cables from being twisted, wound and bunched as much as possible.)

1. A twisted cable protection system for protection of cables within a tower, the twisted cable protection system comprising:

the connecting ropes are fixed on the engine room and extend into the tower barrel, and at least two connecting ropes are arranged at intervals;

the connecting rope is connected with the at least two separating discs in series along the axial direction of the separating discs, a plurality of accommodating holes penetrating through the separating discs are formed in the separating discs, and the accommodating holes are used for allowing cables to penetrate through;

the swing limiting bracket is sleeved outside the separation disc and used for limiting the transverse swing of the cable in the twisting process; and

the swing arm mechanism is connected with the separation disc at the bottom, swings under the pulling of the connecting rope in the cable twisting process, and limits the rotation of the separation disc connected with the swing arm mechanism.

2. The twisted cable protection system of claim 1, wherein the divider disk comprises an outer ring and an inner ring, the outer ring and the inner ring being removably connected, the outer ring and the inner ring enclosing the receiving hole.

3. The twisted cable protection system of claim 2, wherein the inner ring defines a first receiving slot and the outer ring defines a corresponding second receiving slot, the first and second receiving slots defining the receiving bore.

4. The twisted cable protection system of claim 2, wherein the inner ring comprises at least two inner segments that are detachably spliced in sequence to form the inner ring; and/or

The outer ring comprises at least two outer sections which are sequentially detachably spliced to form the outer ring.

5. The twisted cable protection system of claim 2, wherein the divider disc further comprises a reinforcement plate connecting the outer ring and the inner ring.

6. The twisted cable protection system of claim 2, wherein the divider disc further comprises a sheath mounted in the receiving hole, the sheath having protrusions at both ends thereof to prevent the sheath from being released from the receiving hole.

7. The twisted cable protection system of claim 2, further comprising a spacer ring stop mounted on the connecting cord and located at the bottom of the spacer disc.

8. The twisted cable protection system according to claim 1, wherein the swing limiting bracket comprises a fixed frame, a fixed plate and a limiting cylinder, the fixed plate is mounted on the fixed frame, the limiting cylinder is mounted on the fixed plate, and the separating disc is arranged in the limiting cylinder to limit the transverse swing of the cable in the twisting process.

9. The twisted cable protection system according to claim 1, wherein the swing arm mechanism comprises a mounting frame, a swing arm and a connecting shaft, the swing arm is rotatably mounted on the mounting frame, the connecting shaft is rotatably mounted on the swing arm, and the connecting shaft is fixedly connected with the bottom separation disc.

10. A wind turbine generator set, comprising:

a twisted cable protection system according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of wind power, in particular to a wind generating set and a twisted cable protection system thereof.

Background

The wind generating set mainly comprises a tower, a wind wheel, a cabin, a main shaft, a yaw system, a gear box, a high-speed shaft, a generator, a control system and the like, wherein the yaw system, the gear box and the generator are positioned in the cabin. The wind driven generator has the technical principle that a wind wheel converts wind energy into rotating mechanical energy, a main shaft transmits the mechanical energy of the wind wheel to a gear box, the gear box converts the low-rotating-speed mechanical energy of the main shaft into high-rotating-speed mechanical energy suitable for a generator and inputs the high-rotating-speed mechanical energy into the generator through a high-speed shaft, and the generator is used for converting the mechanical energy into electric energy.

At present, the technology of the wind generating set is mature day by day, the capacity of a single machine is larger and larger, and the cable layout in a tower cylinder of the wind generating set is more complex. In the yaw operation process of the unit, the cables are easy to wind, so that the inductive reactance between the cables is large and the impedance is uneven, the power transmission quality is reduced, meanwhile, the cables are wound to cause abrasion, and the operation and maintenance cost is increased.

Disclosure of Invention

Therefore, the wind generating set and the twisted cable protection system thereof need to be provided for solving the problem that cables are easy to wind in the yaw operation process of the set.

A twisted cable protection system for protection of cables within a tower, the twisted cable protection system comprising:

the connecting ropes are fixed on the engine room and extend into the tower barrel, and at least two connecting ropes are arranged at intervals;

the connecting rope is connected with the at least two separating discs in series along the axial direction of the separating discs, a plurality of accommodating holes penetrating through the separating discs are formed in the separating discs, and the accommodating holes are used for allowing cables to penetrate through;

the swing limiting bracket is sleeved outside the separation disc and used for limiting the transverse swing of the cable in the twisting process; and

the swing arm mechanism is connected with the separation disc at the bottom, swings under the pulling of the connecting rope in the cable twisting process, and limits the rotation of the separation disc connected with the swing arm mechanism.

In one embodiment, the separating disc comprises an outer ring and an inner ring, the outer ring and the inner ring are detachably connected, and the outer ring and the inner ring surround the accommodating hole.

In one embodiment, the inner ring is provided with a first receiving groove, the outer ring is provided with a corresponding second receiving groove, and the first receiving groove and the second receiving groove enclose the receiving hole.

In one embodiment, the inner ring comprises at least two inner segments which are detachably spliced in sequence to form the inner ring; and/or

The outer ring comprises at least two outer sections which are sequentially detachably spliced to form the outer ring.

In one embodiment, the divider disk further comprises a reinforcement plate connecting the outer ring and the inner ring.

In one embodiment, the separating disc further comprises a sheath, the sheath is arranged in the accommodating hole, and two ends of the sheath are provided with protrusions to avoid loosening from the accommodating hole.

In one embodiment, the device further comprises a spacer ring stop buckle, the spacer ring stop buckle is arranged on the connecting rope, and the spacer ring stop buckle is positioned at the bottom of the separation disc.

In one embodiment, the swing limiting bracket comprises a fixed frame, a fixed plate and a limiting cylinder, the fixed plate is mounted on the fixed frame, the limiting cylinder is mounted on the fixed plate, and the separation disc is arranged in the limiting cylinder to limit the transverse swing of the cable in the twisting process.

In one embodiment, the swing arm mechanism comprises a mounting frame, a swing arm and a connecting shaft, the swing arm is rotatably mounted on the mounting frame, the connecting shaft is rotatably mounted on the swing arm, and the connecting shaft is fixedly connected with the separating disc at the bottom.

A wind power plant comprising:

the twisted cable protection system of any one of the above.

Above-mentioned wind generating set and turn round cable protection system thereof, the partition dish is equipped with the accommodation hole that the power cable wore to establish, and the accommodation hole is worn to locate by the cable, and a plurality of accommodation holes separate many cables, can retrain the position of cable, avoid many cables to twist reverse in the driftage process and be in the same place, reduce the collision between the power cable and grind, avoid wearing and tearing the cable. At least two separating discs are arranged at intervals, so that the cable can be uniformly twisted during the rotation process. The connecting rope can reduce the self stress of the cable and prolong the service life of the cable. The swing limiting support and the swing arm mechanism at the bottom can limit the transverse movement of the cable, and the swing of the cable is reduced. In the process of twisting the cable, the swing arm mechanism swings under the pulling of the connecting rope and limits the separation disc connected with the swing arm mechanism to rotate, and in the process of twisting the cable, the separation disc at the bottom cannot rotate, so that the twisting, winding and bundling of the cable can be avoided as much as possible.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

FIG. 1 is a schematic diagram of a twisted cable protection system according to one embodiment;

FIG. 2 is a schematic view of the end mounting shackle and shackle of the connecting rope of FIG. 1;

FIG. 3 is a schematic view of the structure of the separation tray of FIG. 1;

FIG. 4 is a top view of the divider disk of FIG. 3;

FIG. 5 is a schematic structural view of the outer segment of FIG. 3;

FIG. 6 is a schematic structural view of the inner segment of FIG. 3;

FIG. 7 is a schematic structural view of the reinforcing plate of FIG. 3;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 9 is a schematic view of the bottom of the divider disk of FIG. 1 with a spacer ring stop mounted thereon;

FIG. 10 is a schematic structural view of the limit swing bracket of FIG. 1;

FIG. 11 is a cross-sectional view of the spacing cylinder of FIG. 10;

FIG. 12 is a schematic view of the swing arm mechanism of FIG. 1 coupled to a bottom separator plate;

fig. 13 is a partial enlarged view of a portion a in fig. 12.

Reference numerals:

10-connecting rope, 11-lock catch, 12-shackle, 122-main body, 124-connecting piece, 13-pressing joint, 20-separating disc, 21-accommodating hole, 22-overlapping part, 23-connecting hole, 24-first accommodating groove, 25-second accommodating groove, 210-outer ring, 211-outer segment, 212-mounting block, 213-first mounting hole, 220-inner ring, 221-inner segment, 222-connecting block, 223-first fixing hole, 230-reinforcing plate, 231-second fixing hole, 232-second mounting hole, 233-via hole, 240-sheath, 242-bulge, 250-connecting pipe, 30-swing limiting bracket, 310-fixing frame, 320-fixing plate, 330-limiting cylinder, 332-buffer block, 40-swing arm mechanism, 410-mounting frame, 411-sleeve, 412-rotating shaft, 413-first bearing seat, 420-swing arm, 430-connecting shaft, 431-second bearing seat, 440-extending frame and 50-spacer ring stop buckle.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, a wind turbine generator system according to an embodiment includes a twisted cable protection system for protecting cables in a tower. Specifically, the twisted cable protection system comprises a connecting rope 10, a separation disc 20, a swing limiting bracket 30 and a swing arm mechanism 40.

Referring to fig. 2, the connecting ropes 10 are fixed to the nacelle and extend into the tower, and at least two connecting ropes 10 are spaced apart from each other. In one embodiment, a lock 11 is disposed at one end of the connecting rope 10, a shackle 12 is detachably connected to the lock 11, and the shackle 12 is mounted on the nacelle to fix one end of the connecting rope 10 to the nacelle.

On the basis of the above embodiment, further, the head of the connecting rope 10 is bent and wound back and then fixed by the pressing joint 13 to form the lock catch 11. The shackle 12 comprises a U-shaped main body 122 and a connecting member 124, wherein the shackle 11 is sleeved on the main body 122, and then the connecting member 124 detachably connects two ends of the main body 122, so that the shackle 12 and the shackle 11 are detachably connected. In one embodiment, the connecting rope 10 may be a steel wire rope, and the connecting member 124 is a connecting bolt.

Referring to fig. 3 and 4, the separating discs 20 are used for separating the cables, at least two separating discs 20 are arranged at intervals, at least two connecting ropes 10 extend along the longitudinal direction, and at least two separating discs 20 are connected in series along the axial direction of the separating discs 20. The separating disc 20 is provided with an accommodating hole 21 penetrating through the separating disc 20, the accommodating hole 21 extends along the axial direction of the separating disc 20, and the accommodating hole 21 is used for a cable to penetrate through. The receiving hole 21 is plural in number, and the plural receiving holes 21 are spaced around the center of the partition plate 20.

In one embodiment, the number of the connection strings 10 is four, and the connection strings 10 are symmetrically arranged along the center of the separation disc 20, so that the separation disc 20 is uniformly stressed. Of course, in other embodiments, the number of the connecting strings 10 may be specifically set as required, and the connecting strings 10 may be symmetrical about the center of the separation disc 20. A plurality of separation discs 20 are evenly distributed on the connection cord 10 so that the cable can be twisted evenly during rotation. The number of separating discs 20 may be specifically set according to the length of the connecting cord 10, one separating disc 20 being arranged per fixed distance.

In one embodiment, the accommodating holes 21 are uniformly distributed around the center of the separating disc 20, when the cables are inserted into the accommodating holes 21, the relative positions of the spaces are symmetrical, mutual inductance between the cables is equal, line impedance is equal, and unbalanced current of the cables is smaller. The accommodating hole 21 is similar to a regular triangle hole, and the three cables are distributed in the accommodating hole 21 in a triangular shape, so that the electromagnetic field of the cables is balanced, the cables are close to pure resistance, the inductive reactance of a circuit is reduced, and the transmission quality of the cables is improved.

It will be appreciated that in other embodiments, the receiving hole 21 may be specifically shaped as desired, such as a square, hexagonal, etc., to facilitate electromagnetic field balancing of the cable. The number of cables threaded through the receiving hole 21 may be specifically set as required, for example, only one cable may be threaded through the receiving hole 21.

In one embodiment, the separating plate 20 includes an outer ring 210 and an inner ring 220, the outer ring 210 and the inner ring 220 are detachably connected, and the outer ring 210 and the inner ring 220 enclose the receiving hole 21.

Referring to fig. 5 and 6, specifically, the outer ring 210 and the inner ring 220 are both provided with the overlapping parts 22, the overlapping parts 22 of the outer ring 210 and the inner ring 220 are staggered from each other, and when the outer ring 210 and the inner ring 220 are connected, the overlapping parts 22 of the outer ring 210 are overlapped on the overlapping parts 22 of the inner ring 220, so that the outer ring 210 and the inner ring 220 can be quickly positioned. The overlapping parts 22 of the outer ring 210 and the inner ring 220 are both provided with connecting holes 23, and the threaded connecting piece is arranged in the connecting holes 23 in a penetrating way, so that the outer ring 210 and the inner ring 220 can be detachably connected. In one embodiment, the threaded connector is a connecting bolt.

In one embodiment, the inner ring 220 has a first receiving groove 24, the outer ring 210 has a corresponding second receiving groove 25, and the first receiving groove 24 and the second receiving groove 25 surround the receiving hole 21. It is understood that, in other embodiments, the inner ring 220 may be provided with a receiving groove, and the inner wall of the outer ring 210 encloses the receiving hole 21 by closing the opening of the receiving groove. Alternatively, the inner wall of the outer ring 210 is provided with a receiving groove, and the outer wall of the inner ring 220 seals the opening of the receiving groove to form the receiving hole 21.

Referring also to FIG. 8, in one embodiment, outer ring 210 includes at least two outer segments 211, and at least two outer segments 211 are detachably connected in sequence to form outer ring 210. Outer ring 210 is formed by splicing at least two outer segments 211 to facilitate insertion of cables into receiving openings 21 and removal of cables from receiving openings 21. In this embodiment, the number of the outer segments 211 is two, and the outer segments 211 are semicircular.

On the basis of the above embodiment, further, both ends of the outer segments 211 are provided with the mounting blocks 212, when the two outer segments 211 are spliced, the two adjacent mounting blocks 212 on different outer segments 211 are staggered and overlapped with each other, and the threaded connector connects the overlapped mounting blocks 212, so that the two adjacent outer segments 211 are connected. In this embodiment, the mounting blocks 212 at the two ends of the outer segment 211 are vertically staggered, so that the outer segment 211 can be conveniently positioned and connected. The threaded connection may be a connecting bolt.

In one embodiment, the inner ring 220 includes at least two inner segments 221, and the at least two inner segments 221 are detachably connected to form the inner ring 220. The inner ring 220 is formed by splicing at least two inner segments 221 so that the outer cables are easily installed into the inner ring 220 and the cables within the inner ring 220 are easily removed without requiring the entire penetration into the inner ring 220 from above or below or the removal from the inner ring 220. In this embodiment, the number of the inner segments 221 is two, and the inner segments 221 are semicircular.

On the basis of the above embodiment, further, both ends of the inner segments 221 are provided with the connecting blocks 222, when the inner segments 221 are sequentially spliced, two adjacent connecting blocks 222 on different inner segments 221 are staggered and overlapped with each other, and the threaded connecting piece is connected with the overlapped connecting blocks 222, so that the two adjacent inner segments 221 are connected. In this embodiment, the connecting blocks 222 at the two ends of the inner segment 221 are vertically staggered, which facilitates the positioning and connection of the inner segment 221. The threaded connection may be a connecting bolt.

In one embodiment, the divider disk 20 further includes a reinforcement plate 230, the reinforcement plate 230 connecting the outer ring 210 and the inner ring 220, the reinforcement plate 230 reinforcing the connection between the outer ring 210 and the inner ring 220 to prevent separation between the outer ring 210 and the inner ring 220. The reinforcing plate 230 is provided with a groove that escapes from the receiving hole 21, the groove corresponding to the shape of the receiving hole 21, and facilitating the passage of the cable through the receiving hole 21.

In this embodiment, the number of the reinforcing plates 230 is two, the two reinforcing plates 230 are respectively disposed on the upper and lower sides of the outer ring 210 and the inner ring 220, and the two sides of the outer ring 210 and the inner ring 220 are connected by the reinforcing plates 230, so as to ensure uniform stress. The reinforcing plate 230 is provided with through holes 233 corresponding to the connecting holes 23, and the threaded fasteners connecting the overlapping portions 22 of the inner ring 220 and the outer ring 210 are inserted into the corresponding through holes 233, so that the threaded fasteners can be avoided on one hand, and the reinforcing plate 230 can be connected with the outer ring 210 and the inner ring 220 on the other hand.

Referring to fig. 3 to 7, based on the above embodiments, further, the inner ring 220 is provided with a first fixing hole 223, the reinforcing plate 230 is provided with a corresponding second fixing hole 231, and the threaded fastener is inserted into the second fixing hole 231 and the first fixing hole 223 to connect the reinforcing plate 230 and the inner ring 220. The number of the second fixing holes 231 is more than that of the first fixing holes 223, that is, the second fixing holes 231 are provided with preformed holes, and on one hand, the preformed holes can be conveniently used for selecting the second fixing holes 231 to be opposite to the first fixing holes 223 according to requirements, and then threaded fasteners are arranged in a penetrating manner, so that the reinforcing plate 230 can be conveniently installed on the inner ring 220; on the other hand, the reserved holes can be used for threaded fasteners connecting the ends of two adjacent inner sections 221 to penetrate through.

On the basis of the above embodiment, further, the outer ring 210 is provided with a first mounting hole 213, the reinforcing plate 230 is provided with a corresponding second mounting hole 232, and the threaded fastener is inserted into the second mounting hole 232 and the first mounting hole 213, so as to connect the reinforcing plate 230 and the outer ring 210.

In one embodiment, a portion of the first and second mounting holes 213 and 232 is not threaded with a threaded fastener, but is threaded with a connection pipe 250, and both ends of the connection pipe 250 are locked by nuts. The connecting rope 10 is inserted into the connecting pipe 250, so that the connecting rope 10 is connected with the separating disc 20 in series. The user can reserve the first mounting hole 213 and the second mounting hole 232 at different positions as required, and then wear to establish the connecting pipe 250, and the connecting rope 10 can pass through at different positions on the outer ring 210, and the position of the connecting rope 10 can be adjusted flexibly.

In one embodiment, the separating tray 20 further includes a sheath 240, the sheath 240 is installed in the accommodating hole 21, and the cable is inserted into the sheath 240. The jacket 240 may space the cable from the sidewalls of the receiving hole 21 to prevent the cable from rubbing against the sidewalls of the receiving hole 21 during twisting, which may result in abrasion of the cable. Further, the sheath 240 has protrusions 242 at both ends, and the protrusions 242 abut against the reinforcing plate 230, so that the protrusions 242 prevent the sheath 240 from being released from the receiving hole 21. Specifically, the sheath 240 may be a rubber sheath.

Referring to fig. 9, in one embodiment, the twisted cable protection system further includes a spacer ring stop 50, the spacer ring stop 50 is mounted on the connecting rope 10, the spacer ring stop 50 is located at the bottom of the separating disc 20, and the spacer ring stop 50 can limit the position of the separating disc 20 on the connecting rope 10. The relative position of the separating discs 20 on the connecting rope 10 is adjustable, so that the positions of the separating discs 20 are uniform, and uniform twisting of cables is facilitated. After the position of the separation disc 20 is adjusted, the spacer ring stop buckle 50 is installed on the connecting rope 10 and positioned at the bottom of the separation disc 20, so as to fix the position of the separation disc 20.

Referring to fig. 1 and 10, the swing limiting bracket 30 is configured to be installed in a tower, and the swing limiting bracket 30 is sleeved outside the separating disc 20 to limit the lateral swing of the cable during the twisting process. In one embodiment, the swing limiting bracket 30 includes a fixing frame 310, a fixing plate 320, and a limiting cylinder 330. The fixing frame 310 is used for being installed on a tower barrel, the fixing plate 320 is installed on the fixing frame 310, the limiting cylinder 330 is installed on the fixing plate 320, and the separating disc 20 is arranged in the limiting cylinder 330 to limit the transverse swing of the cable in the twisting process. The rod body of the fixing frame 310 can be used for the worker to walk, so that the worker can conveniently enter the fixing plate 320 to disassemble, assemble and overhaul the separating disc 20 in the limiting cylinder 330.

Referring to fig. 11, on the basis of the above embodiment, further, the inner wall of the limiting cylinder 330 is provided with a buffer block 332, and the buffer block 332 can buffer the lateral swing of the separating disc 20, so as to prevent the separating disc 20 from being damaged due to the direct hard-touch impact between the separating disc 20 and the limiting cylinder 330, and on the other hand, buffer the swing of the separating disc 20 for energy consumption, and reduce the swing amplitude of the separating disc 20 to make the separating disc 20 tend to be stable. Specifically, the buffer block 332 may be made of rubber.

Referring to fig. 1 and 12, the swing arm mechanism 40 is installed in the tower, the swing arm mechanism 40 is connected to the bottom separation disc 20, the swing arm mechanism 40 swings under the pulling of the connection rope 10 during the cable twisting process, and the rotation of the separation disc 20 connected to the swing arm mechanism 40 is limited.

In one embodiment, the swing arm mechanism 40 includes a mounting frame 410, a swing arm 420, and a connecting shaft 430. The mounting frame 410 is installed in the tower tube, the swing arm 420 is rotatably installed on the mounting frame 410 and can swing under the pulling of the connecting rope 10, the connecting shaft 430 is rotatably installed on the swing arm 420, and the connecting shaft 430 is fixedly connected with the separating disc 20.

In the cable twisting process, the connecting rope 10 pulls the separating disc 20 to move up and down due to twisting, the up-and-down movement of the separating disc 20 can drive the swing arm 420 to rotate, the up-and-down movement of the cable and the connecting rope 10 is adapted, and meanwhile, the swing arm mechanism 40 can limit the transverse swing of the separating disc 20. In the process of twisting the cable, the separation disc 20 is driven to twist, the separation disc 20 is connected with the swing arm 420 through the rotating shaft 412, and the swing arm 420 limits the rotation of the separation disc 20, so that the rotation of the whole cable twisting protection system is avoided, and the twisting, winding and bundling of the cable can be slowed down.

On the basis of the above embodiment, further, the mounting frame 410 is provided with the sleeve 411, the rotating shaft 412 is arranged in the sleeve 411 in a penetrating manner, and the rotating shaft 412 is rotatably connected with the swing arm 420, so that the swing arm 420 is rotatably mounted on the mounting frame 410. In one embodiment, a bearing is installed at an end of the rotating shaft 412, the first bearing seat 413 is connected to the swing arm 420, and the bearing is limited in the first bearing seat 413, so that the swing arm 420 and the rotating shaft 412 can be detachably connected.

Referring to fig. 13, on the basis of the above embodiment, further, the number of the connecting shafts 430 is two, the two connecting shafts 430 are symmetrically arranged about the axis of the separating tray 20, and both the two connecting shafts 430 are rotatably connected with the swing arm 420. Specifically, a bearing is mounted at the end of the connecting shaft 430, the second bearing seat 431 is connected with the swing arm 420, and the bearing is limited in the second bearing seat 431, so that the rotating connection between the connecting shaft 430 and the swing arm 420 is realized.

In one embodiment, the connecting shaft 430 has three positioning holes (not shown) formed at intervals along the axial direction thereof, and the threaded fasteners for connecting the reinforcing plate 230 and the inner ring 220, the threaded fasteners for connecting the outer ring 210 and the inner ring 220, and the threaded fasteners for connecting the reinforcing plate 230 and the outer ring 210 are sequentially inserted into the three positioning holes, so that the connecting shaft 430 and the separating plate 20 are fixedly connected, the structure of the separating plate 20 can be simplified, and the volume of the separating plate 20 can be reduced.

In one embodiment, the swing arm mechanism 40 further includes an extension frame 440, the extension frame 440 is coupled to the mounting frame 410, and the extension frame 440 is mounted to the tower. The mounting frame 410 and the rod body of the extension frame 440 can be used for a worker to walk, so that the worker can conveniently mount the swing arm 420 and conveniently disassemble and assemble the separation disc 20 and the swing arm 420.

Above-mentioned wind generating set and cable protection system turns round thereof, separate the dish 20 and be equipped with the accommodation hole 21 that the power cable wore to establish, the cable is worn to locate in the accommodation hole 21, and a plurality of accommodation holes 21 are separated many cables, can retrain the position of cable, avoid many cables to twist reverse in the driftage process and be in the same place, reduce the collision between the power cable and grind, avoid wearing and tearing the cable. The cables are arranged in the accommodating hole 21 in a triangular shape, so that the collision and abrasion among the cables are reduced, and the transmission quality of the cables is improved. At least two spaced-apart discs 20 allow for uniform twisting of the cable during rotation. The connecting rope 10 can reduce the stress of the cable and prolong the service life of the cable. The swing limiting bracket 30 and the swing arm mechanism 40 at the bottom can limit the transverse movement of the cable, so that the swing of the cable is reduced. In the process of twisting the cable, the swing arm mechanism 40 swings under the pulling of the connecting rope 10 and limits the autorotation of the separating disc 20 connected with the swing arm mechanism, and in the process of twisting the cable, the separating disc 20 at the bottom cannot autorotate, so that the twisting, winding and bundling of the cable can be slowed down.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.