CN106395601B - Aerial dismantling device for windshield and wind power generating set - Google Patents

Abstract

The invention provides an aerial disassembly device for a deflector and a wind turbine generator set. The aerial disassembly device for the deflector includes a connecting part, which is used to cooperate with the front end cover of the wind turbine generator deflector; a connecting leg, and there are multiple connecting legs, and they are arranged at intervals along the circumferential direction of the connecting part. The first end of the connecting leg is fixedly connected to the connecting part, the second end of the connecting leg is connected to the front end cover, and a lifting ring is provided on one of the connecting legs; the axis of the front end cover has a first included angle with the horizontal plane, and the connecting part When the central axis of the lifting ring is horizontal, there is a second included angle between the line connecting the lifting point of the lifting ring and the center of gravity of the aerial disassembly device and the vertical plane, and the second included angle is equal to the first included angle of the front end cover. The aerial disassembly device can realize aerial disassembly and hoisting.

Description

Aerial dismantling device for windshield and wind power generating set

technical field

The invention relates to the field of auxiliary equipment of a wind power generating set, in particular to an aerial dismantling device for a wind deflector and a wind generating set.

Background technique

In the wind power industry, due to the damage of large components such as the pitch motor or reducer in the wind turbine or the damage and aging of the shroud after long-term operation, it is necessary to disassemble the shroud in the air for repair or replacement. Since the front end cover of the shroud is conical, the current common disassembly method is to hang it from the top of the front end cover with an eyebolt screw, or re-drill holes for disassembly, but this method has the following problems:

Due to the damage or aging of the shroud, the hanging ring screws of the front end cover of the shroud may become loose and fall off;

During the disassembly process, since the lifting ring screw is installed on the top of the front end cover of the air guide cover, but the central axis of the front end cover of the air guide cover forms a certain elevation angle with the horizontal plane during the operation of the fan, this will cause the front end cover of the air guide cover to be in the air during disassembly. When detached from the shroud body, it swings, causing danger such as bumping.

In the prior art, there is disclosed a wind turbine wind deflector shroud head assembly tooling, which discloses a deflection generator shroud head assembly tooling, the main principle of which is to use the movable support frame and shroud head The elevation angle adjusts the installation angle. However, this device can only be installed on the ground of the front end cover of the shroud, and cannot be disassembled in the air.

Another installation tooling for the front end cover of the wind turbine wind turbine discloses a front end cover installation tool for the wind turbine. The purpose of installing the front cover of the flow cover is to facilitate installation. However, the device can only be installed and disassembled on the ground, and cannot be disassembled in the air.

Contents of the invention

Embodiments of the present invention provide a device for dismantling a windshield in the air and a wind power generating set, so as to solve the problem of inconvenient disassembly of the front end cover of the windshield in the air.

In order to achieve the above object, an embodiment of the present invention provides an aerial dismantling device for a wind deflector, which includes: a connecting part, which is used to cooperate with the front end cover of the wind turbine deflector; connecting legs, the connecting legs are multiple one, and arranged at intervals along the circumference of the connecting part, the first end of the connecting leg is fixedly connected to the connecting part, the second end of the connecting leg is connected to the front end cover, and a suspension ring is arranged on one of the connecting legs; the front end There is a first included angle between the axis of the cover and the horizontal plane, and when the central axis of the connecting part is horizontal, there is a second included angle between the line connecting the lifting point of the suspension ring and the center of gravity of the aerial disassembly device and the vertical plane, and the second included angle is the same as that of the front end cover. The first included angles of are equal.

Further, the connecting part has a supporting surface for being fully or partially attached to the outer surface of the front end cover. When the supporting surface is attached to the front end cover, the central axis of the connecting part is parallel to the central axis of the front end cover. The connecting line of the centers of gravity of the aerial demolition device is vertical.

Further, the connecting portion is a tapered connecting piece.

Further, there are three or more connecting legs, and they are evenly spaced along the circumferential direction of the connecting part.

Further, the aerial dismantling device further includes a support assembly, and the support assembly connects two adjacent connecting legs.

Further, each connecting leg is provided with a plurality of installation mechanisms, and the plurality of installation mechanisms are arranged in sequence along the length direction of the connecting leg, and the support assembly is connected to the corresponding mounting mechanisms of the two adjacent connecting legs .

Further, the second end of the connecting leg is magnetically fitted with the front end cover.

Furthermore, the second end of each connecting leg is fixedly provided with a first magnetic attraction part, and the aerial dismantling device further includes a second magnetic attraction part matched with the first magnetic attraction part.

Further, the first magnetic attraction part is an electromagnet, and/or the second magnetic attraction part is an electromagnet.

According to another aspect of the present invention, a wind power generating set is provided, which includes a wind deflector, the wind deflecting cover has a front end cover, the wind generating set also includes the above-mentioned aerial dismantling device for the wind deflector, the connection part of the aerial dismantling device and The front cover is attached, and the connecting legs of the aerial dismantling device are magnetically fixed on the front cover.

In the aerial dismantling device of the embodiment of the present invention, the connecting part is used for contacting with the front end cover and providing support, and is used for installing the connecting legs and the like at the same time. One of the connecting legs is provided with a hoisting ring, and the hoisting in the disassembly process is realized through the hoisting ring. A plurality of connecting legs cooperate to support the object to be disassembled. In this way, when the front end cover of the air deflector is disassembled in the air, the second included angle of the connecting part after the aerial dismantling device is hoisted is consistent with the first included angle of the front end cover itself, ensuring that the aerial dismantling device is convenient to cooperate with the front end cover, and the front end cover After disassembly, there will be no rotation to cause collision, ensuring safe disassembly.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of the cooperation between the air dismantling device for the first air deflector and the front end cover according to the embodiment of the present invention;

Fig. 2 is a partial enlarged view of place A in Fig. 1;

Fig. 3 is a three-dimensional structural schematic diagram of the cooperation between the air dismantling device for the second air deflector and the front end cover according to the embodiment of the present invention;

Fig. 4 is a schematic cross-sectional structural view of the cooperation between the air deflector and the front end cover of the first air deflector in the embodiment of the present invention;

Fig. 5 is a partial enlarged view of place B in Fig. 4;

Fig. 6 is a side view schematic diagram of the cooperation between the first aerial detachment device for the shroud and the front end cover according to the embodiment of the present invention.

Explanation of reference signs:

10. Connecting part; 19. Central axis; 20. Connecting leg; 21. Hanging ring; 23. Connecting block; 31. Installation mechanism; 40. Support component; 50. Second magnetic part; 60. First magnetic part ; 90, front end cover.

Detailed ways

The aerial dismantling device and the wind power generating set according to the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in FIG. 1 to FIG. 3 , according to an embodiment of the present invention, the aerial dismantling device for a wind deflector includes a connecting part 10 and a connecting leg 20 . Wherein, the connecting portion 10 is used to cooperate with the front end cover 90 of the wind turbine wind turbine wind turbine wind turbine. There are a plurality of connecting legs 20, and they are sequentially arranged at intervals along the circumferential direction of the connecting part 10. The first end of the connecting leg 20 is fixedly connected to the connecting part 10, and the second end of the connecting leg 20 is connected to the front end cover 90. One of the connecting legs 20 is provided with a suspension ring 21 . The axis of the front end cover 90 has a first included angle with the horizontal plane. When the central axis 19 of the connecting portion 10 is horizontal, there is a second included angle between the line connecting the lifting point of the suspension ring 21 and the center of gravity of the aerial dismantling device and the vertical plane. The included angle is equal to the first included angle of the front end cover 90 .

The connection portion 10 is used to contact and support the object to be disassembled (the front end cover 90 ), and is also used to install the connection leg 20 and the like. One of the connecting legs 20 is provided with a hoisting ring 21, and the hoisting during disassembly is realized through the hoisting ring 21. A plurality of connecting legs 20 cooperate to support the object to be disassembled. When carrying out the dismounting of the front end cover 90 of wind deflector in the air like this, the inclination angle (second included angle) of connecting portion 10 after the aerial dismounting device is hoisted is consistent with the elevation angle (first included angle) of front end cover 90 self, ensures that aerial dismounting device It is convenient to cooperate with the front end cover 90, and after the front end cover 90 is disassembled, it will not rotate and cause collision, ensuring safe disassembly.

It should be noted that, in this embodiment, there are multiple connecting legs 20 , and a suspension ring 21 is provided on one of them. Certainly, in other embodiments, suspension rings 21 may also be provided on the remaining connecting legs 20, and only one suspension ring 21 may be selected to connect with the hook during hoisting.

In this embodiment, the aerial dismantling device is used to dismantle the front end cover 90 of the wind deflector of the wind power generating set, and the object to be dismantled is the front end cover 90 . In order to solve the problem that the front end cover 90 aging caused by the aging of the front end cover 90 during the air disassembly, the lifting screws are easy to fall off or the front end cover 90 needs to be punched to destroy the structure of the front end cover 90 during hoisting.

As shown in Figure 4, the connecting part 10 has a supporting surface for being fully or partially bonded to the outer surface of the object to be disassembled. The central axis 19 is parallel, and the suspension point of the suspension ring 21 is vertical to the connection line of the center of gravity A of the aerial demolition device. This ensures that when the axis of the object to be disassembled is not horizontal, the aerial dismantling device has the same inclination angle, and when the aerial dismantling device is connected to the object to be dismantled in the air, it is better docked.

As shown in FIG. 6 , when the object to be dismantled is the front end cover 90 of the wind turbine wind turbine dome, since the axis of the front end cover 90 has a first angle with the horizontal plane (that is, the elevation angle, usually 0° to 90°), in order The front end cover 90 can be easily removed so that no collision occurs when the front end cover 90 is removed. There is a second included angle a, and the second included angle a is equal to the elevation angle of the front end cover 90 .

When dismounting and hoisting like this, when the suspension ring 21 remained vertical, the front end cover 90 and the connecting portion 10 all kept the same elevation angle, so that the front end cover 90 would not rotate after breaking away from other parts of the shroud, so as to avoid collision damage.

In order to improve applicability, a plurality of suspension rings 21 may be provided on the connecting leg 20, or a plurality of suspension ring connection holes for installing the suspension rings 21 may be provided on the connection support leg 20, and the suspension ring 21 may cooperate with one of the installation holes as required. In this way, the second included angle a formed between the connection line between each suspension ring 21 and the center of gravity A and the vertical plane is different, and the suspension rings 21 at different positions can be selected according to the elevation angle of different front end covers 90, and the applicability is better.

In this embodiment, in order to adapt to the structure of the front end cover 90, the connecting portion 10 is a conical connecting piece. The conical connecting piece can fit well with the front part of the front end cover 90 of the air shroud for support, and also plays a role of guiding and centering. Of course, in other embodiments, the connecting portion 10 may be a triangular or other polygonal support structure. It is sufficient as long as it can guarantee the supporting effect on the front end cover 90 .

As shown in FIG. 1 to FIG. 3 , in order to ensure stable and reliable support, to ensure load-bearing capacity and connection reliability during hoisting, there are three or more connecting legs 20 . One of the connecting legs 20 is used for connecting with the hoisting hook, and the other connecting leg 20 is mainly used for auxiliary support and load bearing.

In this embodiment, the connecting legs 20 used for hoisting are at the upper part, and are used to connect with the hook crane, etc., and the remaining connecting legs 20 are at the lower part, and are used to support the front end cover 90 .

Preferably, a plurality of connecting legs 20 are evenly spaced along the circumferential direction of the connecting part 10 to improve the supporting capacity. In this embodiment, there are three connecting legs 20, and the angle between two adjacent legs is 120°. When hoisting like this, ensure that there are two connecting legs 20 supporting the front end cover 90 at the bottom to ensure the reliability of support.

In this embodiment, the first end of the connecting leg 20 is provided with a connecting block 23 for connecting with the connecting part 10 . The connecting block 23 is connected to the connecting part 10 by means of welding or bolting, and the other end is connected to other parts of the connecting leg 20 by bolts.

In this embodiment, the aerial dismantling device is fixed to the dismantled object by magnetic attraction, which avoids punching and fixing the dismantled object, reduces the damage to the dismantled object, and can be used repeatedly, and can adapt to different disassembled objects. Demolition.

Specifically, the second end of the connecting leg 20 is magnetically connected to the front end cover 90 . The second end of the connecting leg 20 is fixedly provided with a first magnetic attraction portion 60 . Correspondingly, the inner side of the front cover 90 is provided with the second magnetic attraction part 50 matched with the first magnetic attraction part 60 .

The first magnetic attraction part 60 can be an electromagnet, which is more convenient to control the attraction or separation, and the disassembly and connection are more convenient. Of course, the first magnetic attraction part 60 can also be a permanent magnet.

The first magnetic attraction portion 60 can be fixed on the connecting leg 20 by means of welding or the like. The first magnetic attraction part 60 is on the outside of the wind deflector, and its surface in contact with the front end cover 90 of the wind deflector is arc-shaped, so that when the air dismounting device is attached to the outer surface of the front end cover 90 of the wind deflector, it can Fits nicely. The clamping of the front end cover 90 is realized through the attraction of the first magnetic attraction part 60 and the second magnetic attraction part 50 , and the connection between the aerial disassembly device and the front end cover 90 is realized without destroying the structure of the front end cover 90 .

The second magnetic attraction part 50 can also be an electromagnet or a permanent magnet, as long as it can achieve magnetic clamping with the first magnetic attraction part 60 . As shown in Figure 4 and Figure 5, the first magnetic attraction part 60 fixedly arranged on the second end of the connecting leg 20 and the second magnetic attraction part 50 arranged inside the shroud at the corresponding position are magnetically engaged to play a role. The effect of fastening the front end cover 90 of the shroud. The surface of the second magnetic attraction part 50 in contact with the front end cover 90 of the shroud is also arc-shaped, and through the control of the first magnetic attraction part 60 and the second magnetic attraction part 50, the two are attracted to each other to achieve clamping The function of the front end cover 90 of the wind deflector avoids secondary punching and connecting bolts on the front end cover 90 of the wind deflector, making the dismounting operation convenient, quick and efficient.

In order to ensure the relative positions of the plurality of connecting legs 20 , the aerial dismantling device further includes a supporting component 40 , and the supporting component 40 connects adjacent connecting legs 20 .

Specifically, the two ends of the supporting component 40 are respectively welded to the connecting leg 20 to play the role of supporting and fixing. Alternatively, both ends of the support assembly 40 are fixed on the connecting leg 20 through the installation mechanism 31, so as to keep the connecting leg 20 at a certain angle.

In this embodiment, the support assembly 40 may be a three-segment arc-shaped support rod. The mounting mechanism 31 may be a mounting plate fixedly connected to the end of the support assembly 40, and the mounting plate is connected to the connecting leg 20 through bolts. A long hole is provided on the connecting leg 20 to facilitate the adjustment of the installation position of the support assembly 40 . The mounting mechanism 31 may also be a mounting hole provided on the connecting leg 20 .

The connecting leg 20 is provided with a plurality of mounting mechanisms 31 for mounting the support assembly 40 , and the multiple mounting mechanisms 31 are arranged in sequence along the length direction of the connecting leg 20 . In this way, the position of the support assembly 40 can be adjusted by adjusting the installation position of the support assembly 40, and then the length of the support assembly 40 can be changed to ensure that the overall rigidity requirement of the aerial dismantling device is met.

When the installation mechanism 31 is an installation hole, 2 to 4 installation holes are provided on the connecting leg 20, and the welding position of the support assembly 40 can be adjusted according to the size of the front end cover 90 of the shroud, so that the support assembly 40 is in the required fixed position. location to meet the hoisting needs.

When the mounting mechanism 31 is a mounting plate and bolts, one or more elongated holes are provided on the connecting leg 20, and the arc length of the supporting component 40 can be adjusted by adjusting the fixed position of the supporting component 40 on the supporting leg. For the purpose of size, after lifting the aerial dismantling device, the three connecting legs 20 can be kept at an angle of 120°, so that there are always two connecting legs 20 below to support the front end cover 90 of the shroud, and at the top The supporting legs of the windshield front end cover 90 are removed through the lifting lugs.

The aerial dismantling device can solve the problem of dismantling the wind deflector for maintenance due to damage to large parts such as the pitch motor or reducer in the wind turbine or when the wind deflector needs to be disassembled and replaced after long-term operation due to damage and aging. The air deflector is disassembled in the air, because the front end cover of the deflector is conical, and there is a problem. Due to the damage or aging of the shroud, the lifting eye screws of the front end cover of the shroud may become loose and fall off, which may cause unsafe problems during aerial disassembly and hoisting. Or the drilling workload on the shroud is heavy, and it is difficult to install the spreader. Or during the disassembly process, because the lifting eye screw is installed on the top of the front cover, there will be shaking problems after disassembly, etc.

According to another aspect of the present invention, a wind power generating set is provided, which includes a wind deflector, the wind deflecting cover has a front end cover 90, the wind power generating set also includes the above-mentioned aerial dismantling device, the connection part 10 of the aerial dismantling device and the front end cover 90 fit, the connecting legs 20 of the aerial dismantling device are magnetically fixed on the front end cover 90. The aerial dismantling device is fixed to the front end cover 90 of the air guide cover through magnetic attraction, which improves the work efficiency and reduces the labor intensity, and avoids destroying the structure of the front end cover 90 of the air guide cover. After hoisting, the angle formed by the connection line from the lifting point to the center of gravity and the installation surface is the same as the elevation angle of the front end cover of the wind power generating set, which is convenient for installation.

The aerial dismantling device has a simple structure and is easy to disassemble, which improves work efficiency and reduces labor costs. At the same time, it ensures that the windshield is not damaged and saves costs. .

When the front end cover 90 is disassembled by the aerial disassembly device, the connecting portion 10 is first matched with the head of the front end cover 90 , and then the second end of the connecting leg 20 is magnetically fitted with the front end cover 90 to achieve fixation. Thereafter, the fixing bolts of the front end cover 90 are loosened to separate the front end cover 90 from the spinner. Then hang it down through the ring.

The aerial dismantling device and the wind power generating set of the present invention have the following effects:

The first magnetic attraction part and the second magnetic attraction part are used to clamp and fix the air guide cover, which avoids punching holes on the air guide cover, reduces damage to the air guide cover, and can also be used for secondary use.

The connection between the lifting point of the lifting ring and the center of gravity of the aerial demolition device forms a certain angle with the installation surface, which is the same as the elevation angle of the wind turbine, so that it can be easily disassembled to prevent shaking and other dangers.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. A kind of 1. aerial provision for disengagement of kuppe, it is characterised in that including：

   Connecting portion (10), the connecting portion (10) are used to coordinate with the drive end bearing bracket (90) of wind generator set air guide sleeve；

   Connection leg (20), the connection leg (20) is multiple, and is arranged at intervals successively along the circumferential direction of the connecting portion (10), The first end of the connection leg (20) is fixedly connected on the connecting portion (10), the second end of the connection leg (20) with The drive end bearing bracket (90) connects, and hanging ring (21) is provided with one of them described connection leg (20)；

   The axis of the drive end bearing bracket (90) has the first angle with horizontal plane, and the central axis (19) of the connecting portion (10) is horizontal When, there is the second angle between the line and perpendicular of the suspension centre of the hanging ring (21) and the center of gravity of aerial provision for disengagement, it is described Second angle is equal with the first angle of the drive end bearing bracket (90).
2. 2. the aerial provision for disengagement of kuppe according to claim 1, it is characterised in that the connecting portion (10), which has, to be used In the supporting surface that the outer surface with the drive end bearing bracket (90) is completely or partially bonded, the supporting surface is pasted with the drive end bearing bracket (90) During conjunction, the central axis (19) of the connecting portion (10) and the centerline axis parallel of the drive end bearing bracket (90), the hanging ring (21) Suspension centre and the line of the center of gravity of aerial provision for disengagement it is vertical.
3. 3. the aerial provision for disengagement of kuppe according to claim 1, it is characterised in that the connecting portion (10) is taper Connector.
4. 4. the aerial provision for disengagement of kuppe according to claim 1, it is characterised in that the connection leg (20) is three More than a, and set along the circumferential uniform intervals of the connecting portion (10).
5. 5. the aerial provision for disengagement of kuppe according to claim 1, it is characterised in that aerial provision for disengagement further includes branch Support component (40), the support component (40) connect two adjacent connection legs (20).
6. 6. the aerial provision for disengagement of kuppe according to claim 5, it is characterised in that on each connection leg (20) It is both provided with multiple installing mechanisms (31), length side of multiple installing mechanisms (31) along the connection leg (20) at place To setting gradually, the support component (40) is connected to the corresponding fitting machine of the connection leg (20) of adjacent two On structure (31).
7. 7. the aerial provision for disengagement of kuppe according to claim 1, it is characterised in that the of the connection leg (20) Two ends coordinate with the drive end bearing bracket (90) magnetic.
8. 8. the aerial provision for disengagement of kuppe according to claim 1, it is characterised in that each connection leg (20) Second end is fixedly installed the first magnetic part (60), and the aerial provision for disengagement is further included matches somebody with somebody with first magnetic part (60) The second magnetic part (50) closed.
9. 9. the aerial provision for disengagement of kuppe according to claim 8, it is characterised in that first magnetic part (60) is Electromagnet, and/or second magnetic part (50) are electromagnet.
10. 10. a kind of wind power generating set, it is characterised in that including kuppe, the kuppe has drive end bearing bracket (90), wind-force hair Motor group further includes the aerial provision for disengagement of kuppe any one of claim 1 to 9, the aerial provision for disengagement Connecting portion (10) is bonded with the drive end bearing bracket (90), connection leg (20) magnetic of the aerial provision for disengagement be fixed on it is described before On end cap (90).