CN209228538U - Cable Lifting Kit - Google Patents

Abstract

The utility model relates to a cable hoisting assembly for a wind turbine generator set, the cable hoisting assembly comprising: a traction device, arranged near the cabin of the wind turbine generator set, the traction device connected to one end of the cable; a pay-off device, located at the bottom of the tower of the wind turbine generator set, the other end of the cable wound on the pay-off device; a rolling element, arranged near the saddle platform of the tower, the connecting line between the rolling element and the traction device being arranged at a predetermined angle to the horizontal plane; and a guide assembly, comprising a plurality of guide wheels, the plurality of guide wheels being at least located at the ladder at the bottom of the tower and below the saddle platform. The utility model adjusts the lifting friction resistance of the cable between the ladder side and the cabin through the rolling element, thereby improving the lifting efficiency and service life of the cable.

Description

Cable Lifting Kit

technical field

The utility model relates to the technical field of wind power generation, in particular to a cable hoisting assembly.

Background technique

At present, the power cables of wind turbines are mostly low-voltage cables pre-laid in multiple tower sections, and then the low-voltage cables are connected when the tower sections are assembled on site to reduce the electrical workload on site. With the increase of the capacity of wind turbines, it has gradually become a trend to use a whole high-voltage cable instead of multiple low-voltage cables laid in sections. Since the original environmental control equipment at the bottom of the tower is omitted, only one set of environmental control equipment for the engine room is required. The equipment is sufficient, and the equipment cost is reduced.

Due to the relatively long path for the high-voltage cables to be hoisted from the outside of the tower to the engine room, the high-voltage cables are easily worn due to frictional resistance during the hoisting process, which affects the service life of the cables.

Utility model content

The purpose of the utility model is to provide a cable hoisting assembly, which can reduce the frictional resistance of the cable during hoisting.

The utility model provides a cable hoisting assembly, which is used for a wind power generating set. The cable hoisting assembly includes: a traction device, which is arranged close to the engine room of the wind power generating set, and one end of the cable connected to the traction device; At the bottom of the tower, the other end of the cable is wound on the pay-off device; the rolling element is set close to the saddle platform of the tower, and the connection line between the rolling element and the traction device is set at a predetermined angle with the horizontal plane; and the guide assembly includes multiple A plurality of guide wheels are located at least at the bottom of the tower and at the climbing ladder below the saddle platform.

According to an aspect of the embodiment of the present invention, the rolling member is a roller, and a first adapter frame is provided on the wall of the tower close to the saddle platform, and the rotating shaft of the roller is connected to the first adapter frame.

According to an aspect of the embodiment of the present invention, a detachable positioning pin is provided on the drum, and the positioning pin is used to fix the drum to the first adapter frame.

According to one aspect of the embodiment of the present invention, a plurality of fixing holes are provided on the outer peripheral surface of the drum, and the cables are fixed on the drum through the tightening parts passing through the fixing holes.

According to an aspect of the embodiment of the present invention, the rolling member is a pulley block, and the pulley block includes at least two pulleys, one of which is arranged on the saddle platform and close to the climbing ladder, and the other pulley is arranged on the saddle platform and below the traction device.

According to an aspect of the embodiment of the present invention, the cable hoisting assembly further includes a saddle bridge, the saddle bridge is a thin plate with a curved surface, one end of the saddle bridge faces the traction device, and the other end of the saddle bridge faces the ladder.

According to an aspect of the embodiment of the present invention, the wall of the tower is provided with a second adapter frame corresponding to the saddle bridge, and the saddle bridge is connected to the second adapter frame.

According to an aspect of the embodiment of the present invention, the guide assembly further includes a wire-releasing bracket, and the wire-releasing bracket is arranged between the wire-releasing device and the guide wheel at the bottom of the tower.

According to an aspect of the embodiment of the present utility model, the guide assembly further includes a plurality of guide wheels located between the traction device and the rolling member.

According to an aspect of the embodiment of the present utility model, the traction device is an electric hoist or a manual hoist.

The cable hoisting assembly provided by the utility model adjusts the hoisting friction resistance of the cable between the side of the ladder and the engine room through rolling parts, thereby improving the hoisting efficiency and service life of the cable.

Description of drawings

The features, advantages and technical effects of the exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a cable hoisting assembly provided by the utility model;

Fig. 2 is a schematic structural view of the drum in the cable hoisting assembly shown in Fig. 1;

Fig. 3 is a structural schematic diagram of another cable hoisting assembly provided by the utility model.

in:

10-traction device; 20-pay-off device; 30-rolling parts; 31-first adapter frame; 32-locating pin; 33-fixing hole; 35-pulley; 40-guide assembly; Pay-off bracket; 51-second adapter frame; 50-saddle bridge;

C-nacelle; T-tower; S-saddle platform; E-access door; L-cable.

In the figures, the same parts are given the same reference numerals. The drawings are not drawn to scale.

Detailed ways

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention. In the drawings and the following description, at least some of the well-known structures and techniques are not shown in order to avoid unnecessary obscurity of the present invention; and, for clarity, the size of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described hereinafter may be combined in any suitable manner in one or more embodiments.

The orientation words appearing in the following description are the directions shown in the figure, and are not intended to limit the specific structure of the present invention. In the description of the present utility model, it should also be noted that unless otherwise specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it can be directly connected or indirectly connected. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In order to better understand the utility model, the cable hoisting assembly provided by the embodiment of the utility model will be described in detail below with reference to FIG. 1 to FIG. 3 .

Referring to Fig. 1, the utility model provides a cable hoisting assembly for a wind power generating set. The cable hoisting assembly includes: a traction device 10 , a pay-off device 20 , a rolling element 30 and a guide assembly 40 .

The traction device 10 is set close to the nacelle C of the wind power generating set, and can be located inside the nacelle C or below the nacelle C. The traction device 10 is connected to one end of the cable L. The traction device 10 can be an electric hoist or a manual hoist, and is used to provide power for hoisting cables.

The pay-off device 20 is located at the bottom of the tower T of the wind power generating set, and can be placed on the ground inside the tower T or on the ground outside the tower T. For offshore wind power generating sets, the pay-off device 20 is located On the deck of the ship outside T, the other end of the cable L is wound on the pay-off device 20, and the cable L is preferably a high-voltage cable. The pay-off device 20 can realize automatic pay-off, which is convenient for the operator to pay-off flexibly.

The rolling element 30 is arranged close to the saddle platform S of the tower T, and the line between the rolling element 30 and the traction device 10 is set at a predetermined angle to the horizontal plane. The predetermined angle may be, for example, less than or equal to 45°.

The guide assembly 40 includes a plurality of guide wheels 41, and the plurality of guide wheels 41 are located at least at the bottom of the tower T and at the ladder below the saddle platform S. For example, when the pay-off device 20 is placed on the ground outside the tower T, the tower T A guide wheel 41 is also placed at the entrance door E to prevent the cable L from rubbing against the ground at the bottom of the tower T due to its own weight during the unwinding process. The rotating shaft of the guide wheel 41 can be fixed to the ground or the ladder by fasteners, or can be fastened by welding, preferably by fasteners, so as to facilitate disassembly after the cable L is hoisted.

Taking the pay-off device 20 placed outside the tower T as an example, during the hoisting process of the cable L, the operator first carries one end of the cable L, and the pay-off device 20 enters the guide wheel 41 at the door E via the tower T, The guide wheels 41 and rolling elements 30 at the ladder are hooked to the traction device 10, or take the elevator or ladder in the tower T to reach the traction device 10, and hook one end of the cable L to the traction device 10, and at the same time, during the return process Place the cable L on the rolling member 30, the guide wheel 41 at the entrance door E of the tower T, the guide wheel 41 at the ladder, and other guide wheels 41 in sequence. The pay-off device 20 automatically pays out the wire under the action of the traction device 10, and finally completes the hoisting work of the whole cable.

Since the ladder is arranged near the wall of the tower T, the traction device 10 is located below the nacelle, and the cable from the guide wheel 41 at the ladder to the traction device 10 is obliquely stretched, and the inclination of the cable can be adjusted via the rolling member 30 to Reduce frictional resistance during cable hoisting.

The cable hoisting assembly provided by the utility model adjusts the hoisting friction resistance of the cable L between the side of the ladder and the cabin C through the rolling member 30, thereby improving the hoisting efficiency and service life of the cable L.

Referring to FIG. 2 , the rolling member 30 can be a roller, and a first adapter frame 31 is provided on the wall of the tower T close to the saddle platform S, and the rotating shaft of the roller is connected to the first adapter frame 31 . The drum rotates around the axis of rotation, so that the cables stretched obliquely from the guide wheels 41 at the ladder to the traction device 10 can change the inclination of the cables through the rolling of the drums, improving the hoisting efficiency of the cables.

In addition, a detachable positioning pin 32 is provided on the drum, and the positioning pin 32 is used to fix the drum on the first adapter frame 31 . When hoisting the cable L, the positioning pin 32 is pulled out from the drum, and the rolling of the drum is used to facilitate the hoisting of the cable L. After the hoisting is completed, the drum is fixed on the first adapter frame 31 through the positioning pin 32 .

In addition, since the cable L rotates with the rotation of the yaw system of the cabin C, sufficient rotation margin must be reserved. In addition, the reserved cable also needs to be used to crimp the cable head during subsequent maintenance of the cable. The cable can be wound on the drum instead of being placed in the nacelle C, and the overall size of the nacelle C can be reduced.

Further, in order to prevent the reserved cables from falling off on the drum, a plurality of fixing holes 33 are provided on the outer peripheral surface of the drum, and the cables used for crimping the cable heads are fixed to the outer circumference of the drum through the tightening parts passing through the fixing holes 33 face. The tightening parts can be cable pipe clips or cable ties, which can neatly wind the reserved cables on the drum.

During cable maintenance, untie the tightening member, pull out the positioning pin 32, utilize the traction device to lift the cable upwards, and the cable of the crimped cable head can be used for the secondary cable at the engine room C place. If the entire cable needs to be replaced, the rolling of the drum can also flexibly replace the cable.

When the pay-off device 20 is placed outside the tower T, since the pay-off device 20 and the entrance door E of the tower are generally separated by a certain distance, in order to prevent the cable L from sagging under the action of its own gravity, it will not contact the ground, the deck of the ship or If friction occurs in other buildings, the guide assembly 40 also includes a pay-off bracket 42, which is arranged between the pay-off device 20 and the guide wheel 41 at the entrance door E at the bottom of the tower. The pay-off support 42 includes a fixed frame and guide wheels supporting the fixed frame.

In addition, the guide assembly 40 also includes a plurality of guide wheels 41 located between the traction device 10 and the rolling member 30. For example, the guide wheels 41 can be respectively set on the top platform of the tower T and the elevator arrival platform to further reduce the height of the ladder. The inclination of the guide wheel 41 to the obliquely stretched cable of the traction device 10 can avoid the cable from being worn by the top platform and the elevator arrival platform during the hoisting process, and improve the hoisting efficiency of the cable L.

Thus, the cable hoisting assembly provided by the present invention can remove the pay-off device 20 and the guide assembly 40 after the hoisting of the cable L is completed, and the roller is used to hook the reserved cables.

Referring to FIG. 3 , the utility model also provides a cable hoisting assembly, which is similar in structure to the cable hoisting assembly in FIG. 1 , except that the rolling member 30 is a pulley block.

The pulley block includes at least two pulleys 35 , one pulley 35 is arranged on the saddle platform S and close to the climbing ladder, and the other pulley 35 is arranged on the saddle platform S and below the traction device 10 . The pulley block can change the lifting direction of the cable L, and the cable from the guide wheel 41 at the ladder to the traction device 10 is changed from oblique stretching to vertical upward stretching. Compared with the drum in Figure 1, the cable L is further reduced. The friction resistance encountered during the hoisting process simplifies the hoisting path of the cable L.

In addition, the cable hoisting assembly further includes a saddle bridge frame 50 having an arc-shaped surface, one end of the saddle bridge frame 50 faces the traction device 10 , and the other end of the saddle bridge frame 50 faces the climbing ladder. The wall of the tower T is provided with a second adapter frame 51 corresponding to the saddle bridge frame 50 , and the saddle bridge frame 50 is connected to the second adapter frame 51 . The saddle bridge frame 50 is used to place reserved cables without placing the reserved cables in the nacelle C, thereby reducing the overall size of the nacelle C.

It can be understood that the saddle bridge frame 50 can also be replaced by the aforementioned roller, which is mainly used to carry the reserved cables, so as to save the occupied space of the cables.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for parts thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (10)

1. a kind of cable hoisting component, it to be used for wind power generating set, which is characterized in that the cable hoisting component includes:

Traction device (10), the cabin (C) close to the wind power generating set are arranged, traction device (10) connecting cable (L) one end；

Actinobacillus device (20), positioned at bottom tower (T) of the wind power generating set, the other end of the cable (L) is wound in On the actinobacillus device (20)；

Rolling member (30), the saddle platform (S) close to the tower (T) are arranged, the rolling member (30) and the traction device (10) line between is arranged horizontal by predetermined angular；

Guidance set (40), including multiple directive wheels (41), the multiple directive wheel (41) are located at least in the bottom the tower (T) At ladder below portion, the saddle platform (S).

2. cable hoisting component according to claim 1, which is characterized in that the rolling member (30) is roller, the tower Cylinder (T) wall portion be provided with the first adapter frame (31) close to the position of the saddle platform (S), the shaft of the roller with it is described First adapter frame (31) connection.

3. cable hoisting component according to claim 2, which is characterized in that be provided with dismountable positioning on the roller It sells (32), the positioning pin (32) is used to the roller being fixed on first adapter frame (31).

4. cable hoisting component according to claim 2, which is characterized in that be provided on the outer peripheral surface of the roller multiple Fixation hole (33), the cable (L) are fixed on the roller by passing through the tightening piece of the fixation hole (33).

5. cable hoisting component according to claim 1, which is characterized in that the rolling member (30) is pulley blocks, described Pulley blocks include at least two pulleys (35), and one of pulley (35) is set on the saddle platform (S) and close to described Ladder, another described pulley (35) are set to the lower section on the saddle platform (S) and being located at the traction device (10).

6. cable hoisting component according to claim 5, which is characterized in that the cable hoisting component further comprises horse Surcingle frame (50), the saddle gantry (50) have an arcwall face, and one end of the saddle gantry (50) is towards the traction device (10), the other end of the saddle gantry (50) is towards the ladder.

7. cable hoisting component according to claim 6, which is characterized in that the wall portion of the tower (T) corresponds to the horse Surcingle frame (50) is provided with the second adapter frame (51), and the saddle gantry (50) connect with second adapter frame (51).

8. cable hoisting component according to claim 1, which is characterized in that the guidance set (40) further includes unwrapping wire branch Frame (42), the wire-unfolding rack (42) be set to the actinobacillus device (20) and the tower bottom the directive wheel (41) it Between.

9. cable hoisting component according to claim 1, which is characterized in that the guidance set (40) further includes being located at institute State multiple directive wheels (41) between traction device (10) and the rolling member (30).

10. cable hoisting component according to any one of claims 1 to 9, which is characterized in that the traction device (10) is Electric block or bottle gouard moved by hands.