CN217882790U

CN217882790U - Cable lifting structure

Info

Publication number: CN217882790U
Application number: CN202220814067.9U
Authority: CN
Inventors: 胡国佳; 倪黎; 朱秀贤
Original assignee: Shanghai Electric Wind Power Group Co Ltd
Current assignee: Shanghai Electric Wind Power Group Co Ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-11-22
Anticipated expiration: 2032-04-01

Abstract

The application provides a cable promotes structure is applied to aerogenerator. The cable lifting structure comprises a lifting device and a temporary fixing device. The lifting device is assembled on a top platform of the wind driven generator and used for lifting a cable to be installed. The temporary fixing device is assembled on the inner wall of the tower barrel of the wind driven generator, is close to the lifting device and is arranged close to the lifting device compared with the top platform, and is used for temporarily fixing a cable to be installed. Therefore, the lifted cables to be installed can be temporarily fixed through the temporary fixing device, so that cable clamp plates for fixing the cables to be installed are further installed after all the cables to be installed are lifted, the working efficiency of laying the cables is effectively improved, and the temporary fixing device is safe and reliable.

Description

Cable lifting structure

Technical Field

The application relates to the field of fans, in particular to a cable lifting structure.

Background

At present, the cables are laid by manpower in China. Especially, in the process of lifting the cable in the tower of the wind driven generator, the length of the cable reaches more than one hundred meters, and the weight of the cable is large, so that difficulty is brought to constructors. In the related art, a cable clamp plate is installed to fix a single cable after the cable is lifted, so that the efficiency of laying the cable is low and the construction period is long.

SUMMERY OF THE UTILITY MODEL

The application provides a high-efficient, safe cable promotes structure.

The application provides a cable promotes structure is applied to aerogenerator, wherein, includes:

the lifting device is assembled on a top platform of the wind driven generator and used for lifting a cable to be installed;

the temporary fixing device is assembled on the inner wall of the tower barrel of the wind driven generator, and the temporary fixing device is close to the lifting device and used for temporarily fixing the cable to be installed.

Optionally, the temporary fixing device comprises at least one group of fixing components, at least one group of fixing components comprises a support and a plurality of fixing anchor points, wherein the support is connected with the inner wall of the tower; the plurality of fixed anchor points are respectively arranged on the bracket;

each fixing anchor point temporarily fixes the cable to be installed.

Optionally, the support includes a connecting support and a support body, wherein one end of the connecting support is connected to the inner wall of the tower, and the other end of the connecting support is connected to the support body; the support body is provided with one or more fixed anchor points.

Optionally, the lifting device includes:

the lifter is arranged on the top platform;

the cable mounting device comprises a pulley assembly and a rope, wherein a first end of the rope is connected with the elevator, a second end of the rope is wound around the pulley assembly and freely placed in the height direction of the tower, and the rope is used for pulling the cable to be mounted.

Optionally, the cable lifting structure further includes a net sleeve sleeved on the cable to be installed, and a sleeve ring is arranged at one end of the net sleeve facing the rope;

a lifting hook is arranged at the second end of the rope;

the lifting hook is hooked with the lantern ring to drive the cable to be installed to be lifted.

Optionally, the hook is a rotatable hook.

Optionally, the pulley assembly comprises a first pulley and a second pulley, wherein the first pulley is mounted to the top platform; the second pulley is assembled on the temporary fixing device, and the height of the second pulley is higher than that of the first pulley along the height direction of the tower;

and the second end of the rope is wound around the bottom of the first pulley, extends upwards to wind the second pulley, is freely placed along the height direction of the tower drum, and pulls the cable to be installed.

Optionally, the pulley assembly comprises a first pulley and a second pulley, wherein the first pulley is mounted to the top platform; the second pulley is assembled on the temporary fixing device, and the height of the first pulley is higher than that of the second pulley along the height direction of the tower;

and the second end of the rope is wound around the top of the first pulley, extends downwards to pass through the second pulley, is freely placed along the height direction of the tower and pulls the cable to be installed.

Optionally, the cable lifting structure further comprises at least one guiding device, and the at least one guiding device is assembled on the middle platform of the wind turbine generator and used for limiting the direction of the cable to be installed.

Optionally, the cable lifting structure further includes a cable reel, disposed outside the tower, and configured to unreel the cable to be installed.

The application provides a cable promotes structure is applied to aerogenerator, including elevating gear and interim fixing device. So, be used for temporarily fixing the cable of waiting to install after promoting through the interim fixing device of the inner wall assembly at aerogenerator's a tower section of thick bamboo for all wait to install the cable and all promote the completion back, further install again and be used for the fixed cable cleat of waiting to install the cable, thereby effectively improve the work efficiency who lays the cable, and safe and reliable.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

FIG. 1 is a partial schematic structural view of the cable lifting structure of the present application mounted to a wind turbine;

FIG. 2 is a schematic view of a temporary holding device for one exemplary embodiment of the cable lifting arrangement of FIG. 1;

FIG. 3 is an enlarged view of a portion A of the hoist of one embodiment of the cable hoist arrangement of FIG. 1;

fig. 4 is a schematic view of a lifting device of another embodiment of the cable lifting arrangement shown in fig. 1;

fig. 5 is a diagram illustrating steps of a method of lifting a cable to be installed by the cable lifting structure of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front," "back," "lower," and/or "upper," and the like are for convenience of description, and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed after "comprises" or "comprising" is inclusive of the element or item listed after "comprising" or "comprises", and the equivalent thereof, and does not exclude additional elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The application provides a cable lifting structure is applied to aerogenerator, including elevating gear and interim fixing device. The lifting device is assembled on a top platform of the wind driven generator and used for lifting a cable to be installed. The temporary fixing device is assembled on the inner wall of a tower barrel of the wind driven generator, is close to the lifting device and is arranged close to the lifting device, and is used for temporarily fixing a cable to be installed compared with the top platform. Therefore, the lifted cables to be installed can be temporarily fixed through the temporary fixing device, so that cable clamp plates for fixing the cables to be installed are further installed after all the cables to be installed are lifted, the working efficiency of laying the cables is effectively improved, and the temporary fixing device is safe and reliable.

Fig. 1 is a partial structural schematic view of the cable lifting structure provided by the present application mounted to a wind turbine 2. As shown in fig. 1, the cable lifting structure is applied to a wind power generator 2. The cable lifting structure comprises a lifting device 3 and a temporary fixing device 4. The lifting device 3 is fitted to a top platform 5 of the wind turbine 2 for lifting the cable 6 to be installed. The temporary fixing device 4 is fitted to the inner wall of the tower 7 of the wind turbine 2. A temporary fixing device 4 is arranged close to the lifting device 3 and close to the lifting device 3 compared to the top platform 5 for temporarily fixing the cable 6 to be installed. In this embodiment, one or more cables 6 to be installed are lifted from the bottom of the tower 7 to the top platform 5 by the lifting device 3, and then the cables 6 to be installed can be temporarily fixed to the temporary fixing device 4. In this way, after all the cables 6 to be installed are lifted to the top platform 5, a cable clamp (not shown) is further installed to fix the cables 6 to be installed. Therefore, compared with the scheme that after each cable 6 to be installed is lifted, the cable clamp plate is installed to fix the cable 6 to be installed, the efficiency of laying the cable 6 to be installed is effectively improved, the construction period is shortened, and safety and reliability are achieved. In some embodiments, the cable 6 to be installed is an electrical cable.

Fig. 2 is a schematic view of the temporary fixing means 4 of an exemplary embodiment of the cable lifting arrangement shown in fig. 1. Referring to fig. 1 and 2, in some embodiments, the temporary fixing device 4 includes at least one set of fixing components 8, at least one set of fixing components 8 includes a bracket 9 and one or more fixing anchors 10, wherein the bracket 9 is connected with the inner wall of the tower 7; a plurality of fixed anchor points 10 are respectively provided on the support 9. Each fixation anchor 10 may be used for temporarily fixing the cable 6 to be installed. In this embodiment, the support 9 is used to secure one or more anchor points 10. At the point where the current cable 6 to be installed is lifted to the temporary fixing device 4, it can be temporarily fixed to the fixing anchor 10, and then it can continue to lift the other cables 6 to be installed at the bottom of the tower 7. So set up, simple structure, it is effectual to fix temporarily, makes things convenient for the staff operation. In some embodiments, the anchor points 10 comprise hooks. The cable 6 to be installed is fixed with the hook in a hanging mode.

In some embodiments, the bracket 9 includes a connecting support 11 and a bracket body 12, wherein one end of the connecting support 11 is connected to the inner wall of the tower 7, and the other end of the connecting support 11 is connected to the bracket body 12; the stent body 12 is provided with a plurality of anchor points 10. In this embodiment, the bracket body 12 is connected to the inner wall of the tower 7 by the connecting support 11, so that the plurality of fixing anchor points 10 provided on the bracket body 12 are closer to the central axis of the tower 7 in the radial direction of the tower 7, thereby bringing the temporarily fixed cable 6 to be installed closer to the central axis of the tower 7. In this way, it is convenient for the subsequent staff to take off the cable 6 to be installed from the fixation anchor point 10. In some embodiments, the stent 9 may comprise a plurality of sets, wherein each set comprises a connecting support 11 and a stent body 12 connected to each other. And, a plurality of sets of the holders 9 are arranged at intervals. In some embodiments, the bracket 9 may also be assembled from a connecting support 11 and a plurality of bracket bodies 12. The plurality of bracket bodies 12 are all connected to the same connecting support member 11. In some embodiments, the bracket 9 may further include at least two connecting supports 11, at least one supporting rod 13, and a plurality of bracket bodies 12. As shown in fig. 2, each of the support rods 13 is connected between two connecting supports 11, and a plurality of bracket bodies 12 are connected to the support rods 13. Of course, the bracket 9 may have other connecting structures, and is not limited thereto.

With continued reference to fig. 1, in some embodiments, the lifting device 3 includes a lift 14, a sheave assembly 15, and a rope 16. The elevator 14 is provided on the top platform 5. A first end of a rope 16 is connected to the hoist 14, a second end of the rope 16 is freely placed in the height direction of the tower 7 around the pulley assembly 15, and the rope 16 is used for pulling the cable 6 to be installed. In this embodiment, the cable 6 to be installed is lifted by the cooperation of the elevator 14, the pulley assembly 15 and the rope 16. Specifically, one end of the rope 16 is connected to the elevator 14, and the other end of the rope can be connected to the cable 6 to be installed after being wound around the pulley assembly 15. In this way, the hoist 14 draws the hoisting movement of the cable 6 to be installed by means of the control rope 16. So, simple structure makes things convenient for the staff to operate, and it is effectual to go up and down. In some embodiments, the elevator 14 includes a hoist. In some embodiments, the lift 14 is removably attached to the top platform 5. In some embodiments, the lift 14 may be connected to the top platform 5 by a hinge arrangement.

Fig. 3 is an enlarged view of a part a of the lifting device 3 of an embodiment of the cable lifting arrangement shown in fig. 1. As shown in fig. 3, in some embodiments, the pulley assembly 15 includes a first pulley 17 and a second pulley 18, wherein the first pulley 17 is mounted to the top platform 5; the second pulley 18 is mounted on the temporary fixing device 4, and the height of the second pulley 18 is higher than that of the first pulley 17 along the height direction of the tower 7. The second end of the rope 16 passes around the bottom of the first pulley 17 and extends upwards around the second pulley 18 to be placed freely in the height direction of the tower 7, pulling the cable 6 to be installed. The second end of the rope 16 extends horizontally from the elevator 14 to the bottom of the first pulley 17 and then extends obliquely upward around the second pulley 18. In this way, the second end of the rope 16 is transitionally wound to the second pulley 18 through the first pulley 17, which effectively reduces the driving force of the elevator 14 on the rope 16, thereby reducing the difficulty of the rope 16 pulling the cable 6 to be installed to lift. In some embodiments, the first pulley 17 may also be connected to the top platform 5 by a hinge arrangement. In some embodiments, the second pulley 18 comprises a lifting lug by which it is suspended from the anchor point 10 of the temporary fixation device 4.

Fig. 4 is a schematic view of the lifting device 3 of another embodiment of the cable lifting arrangement shown in fig. 1. In some embodiments, as shown in fig. 4, the height of the first pulley 17 may be higher than the height of the second pulley 18 along the height direction of the tower 7. The second end of the rope 16 passes around the top of the first pulley 17 and extends downwards around the second pulley 18, freely lying in the height direction of the tower 7, pulling the cable 6 to be installed. In this embodiment, since the height of the first pulley 17 is higher than the height of the second pulley 18, it is necessary to arrange the second end of the rope 16 to pass first obliquely upward from the elevator 14 around the top of the first pulley 17 and then obliquely downward around the top of the second pulley 18. In this way, the rope 16 can be slidably fitted to the first pulley 17 and the second pulley 18, which is beneficial to the diversity of the structural arrangement of the pulley assembly 15 to adapt to different arrangement conditions of parts in the tower 7.

With continued reference to fig. 1, in some embodiments, the cable lifting structure further comprises a net 19 covering the cable 6 to be installed, and a loop 20 is provided at an end of the net 19 facing the rope 16. A second end of the line 16 is provided with a hook 21; the loop 20 is hooked by the hook 21 to lift the cable 6 to be installed. The cable 6 to be installed can be connected to the hook 21 of the rope 16 via the loop 20 of the net 19 to facilitate the lifting of the cable 6 to be installed by the rope 16. Therefore, the connecting effect of the rope 16 and the cable 6 to be installed is good, the structure is simple, and the operation is convenient. In some embodiments, the number of the net sleeves 19 that can be sleeved with the cables 6 to be installed includes 1, 2, 3, etc. This is advantageous in improving the efficiency of the cable 6 to be installed. In some embodiments, the mesh 19 comprises a double loop cable mesh.

In some embodiments, the hook 21 is a rotatable hook, so that the cable 6 to be installed can release its own torsion during the lifting process and is in a smooth and straight state, thereby preventing the cable 6 to be installed from twisting and bulging, and facilitating the cable 6 to be installed to be smooth during the lifting process.

In some embodiments, the cable lifting structure further comprises at least one guiding device 22, the at least one guiding device 22 being mounted to an intermediate platform 23 of the wind turbine 2 for limiting the orientation of the cable 6 to be installed. By providing the guide means 22, it is possible on the one hand to guide the cable 6 to be installed to be lifted in a predetermined direction and on the other hand to reduce the risk of frictional damage to the cable 6 to be installed. In addition, it should be noted that the intermediate stage 23 includes a plurality of stages. Since the cable 6 to be installed is lifted obliquely upward toward the lowermost intermediate platform 23 after entering the tower 7 through the door of the tower 7, the lowermost intermediate platform 23 must be provided with a guide 22 to avoid friction damage to the cable 6 to be installed thereat. Further, it is possible to determine whether or not the guide 22 is provided on the other intermediate platform 23 according to the actual situation on the site. In some embodiments, at least one wire device 22 may be mounted on 2 or 3 of the other intermediate platforms 23, respectively. In some embodiments, guide 22 comprises a guide wheel.

In some embodiments, the cable lifting structure further comprises a cable reel 24, provided outside the tower 7, for unwinding the cable 6 to be installed. The cable 6 to be installed is wound onto the cable reel 24 before being lifted. During the lifting of the cable 6 to be installed, the cable reel 24 gradually unwinds the cable 6 to be installed. Thus, the cable 6 to be installed can be prevented from being wound in the lifting process to influence the lifting efficiency. In some embodiments, the cable spool 24 includes a spool support 25 and a spool body 26 disposed on the spool support 25, wherein the cable 6 to be installed is wound onto the spool body 26 before being lifted.

Taking the cable lifting structure shown in fig. 1 provided in the present application as an example, the step of lifting the cable 6 to be installed will be described in detail. As shown in fig. 5, fig. 5 is a diagram illustrating steps of a method 27 of lifting a cable 6 to be installed by the cable lifting structure provided in the present application. Step 1, installing a temporary fixing device 4, a lifter 14, a pulley assembly 15, a rope 16 and a guide device 22; step 2, installing a cable reel 24, and winding the cable 6 to be installed on the cable reel 24; step 3, mounting the net sleeve 19 at one end of the cable 6 to be mounted, and hanging the lantern ring 20 of the net sleeve 19 on the hook 21 of the rope 16; step 4, putting the worker in place, electrifying and debugging the lifter 14, and starting to lift the cable 6 to be installed; step 5, when the cable 6 to be installed is lifted to the temporary fixing device 4, the worker controls the rope 16 to stop rising through the lifter 14, and hangs the lantern ring 20 of the net sleeve 19 on the fixing anchor point 10 of the temporary fixing device 4; step 6, repeating the step 5 to continuously lift the next group of cables 6 to be installed; step 7, when all the cables 6 to be installed are lifted, installing cable splints to fix the cables 6 to be installed; step 8, removing the temporary fixing device 4, the lifter 14, the pulley assembly 15, the rope 16 and the guide device 22, and transporting to the ground. Therefore, compared with the scheme that after each cable 6 to be installed is lifted, the cable clamp plate is installed to fix the cable 6 to be installed, the efficiency of laying the cable 6 to be installed is effectively improved, the construction period is shortened, and safety and reliability are achieved. In some embodiments, the cable 6 to be installed is an electrical cable.

In addition, it should be noted that, during the process of lifting the cable 6 to be installed, the workers on the platforms communicate with each other through the interphone, and should stop the elevator 14 immediately once an abnormal condition occurs. And after the abnormal condition is eliminated, continuing the lifting work. The selection of the elevators 14 should determine the rated hoisting weight of the elevators 14 according to the hoisting length of the cables 6 to be installed and the number of cables 6 to be installed per single hoisting. Also, considering the construction cost, a wind farm can determine the working range according to the construction scheme and the schedule requirements, and thus the purchase number of the elevators 14.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.

Claims

1. A cable hoisting structure applied to a wind driven generator is characterized by comprising:

the temporary fixing device is assembled on the inner wall of the tower barrel of the wind driven generator, is close to the lifting device and is used for temporarily fixing the cable to be installed.

2. The cable lift structure as defined in claim 1, wherein said temporary securing means comprises at least one set of securing members, at least one set of said securing members comprising a bracket and a plurality of securing anchors, wherein said bracket is attached to the inside wall of said tower; the plurality of fixed anchor points are respectively arranged on the bracket;

each fixing anchor point temporarily fixes the cable to be installed.

3. The cable lifting structure according to claim 2, wherein the bracket includes a connection support and a bracket body, wherein one end of the connection support is connected to the inner wall of the tower and the other end of the connection support is connected to the bracket body; the support body is provided with one or more fixed anchor points.

4. Cable hoist arrangement according to claim 1, characterized in that the hoisting device comprises:

the lifter is arranged on the top platform;

the cable mounting device comprises a pulley assembly and a rope, wherein the first end of the rope is connected with the elevator, the second end of the rope bypasses the pulley assembly and is freely placed in the height direction of the tower, and the rope is used for pulling the cable to be mounted.

5. The cable hoist structure of claim 4, further comprising a net cover fitted over the cable to be installed, the net cover having a loop at an end thereof facing the rope;

a second end of the rope is provided with a lifting hook;

the lifting hook is hooked with the lantern ring to drive the cable to be installed to lift.

6. The cable lifting structure according to claim 5, wherein the hook is a rotatable hook.

7. The cable hoist arrangement of claim 4, wherein the pulley assembly includes a first pulley and a second pulley, wherein the first pulley is mounted to the top platform; the second pulley is assembled on the temporary fixing device, and the height of the second pulley is higher than that of the first pulley along the height direction of the tower;

8. The cable hoist arrangement of claim 4, wherein the pulley assembly includes a first pulley and a second pulley, wherein the first pulley is mounted to the top platform; the second pulley is assembled on the temporary fixing device, and the height of the first pulley is higher than that of the second pulley along the height direction of the tower;

and the second end of the rope is wound around the top of the first pulley, extends downwards to be wound around the second pulley, is freely placed along the height direction of the tower drum, and pulls the cable to be installed.

9. The cable lifting structure according to claim 1, further comprising at least one guiding device mounted to the intermediate platform of the wind turbine for limiting the orientation of the cable to be installed.

10. The cable lifting structure according to claim 1, further comprising a cable reel, provided outside the tower, for unwinding the cable to be installed.