CN108975244B

CN108975244B - Tower drum turnover device and tower mounting system

Info

Publication number: CN108975244B
Application number: CN201810890417.8A
Authority: CN
Inventors: 方晶; 沈星星; 李红峰
Original assignee: Jiangsu Goldwind Science and Technology Co Ltd
Current assignee: Jiangsu Goldwind Science and Technology Co Ltd
Priority date: 2018-08-07
Filing date: 2018-08-07
Publication date: 2020-05-05
Anticipated expiration: 2038-08-07
Also published as: CN108975244A

Abstract

The invention provides a tower drum overturning device and a tower mounting system. The tower drum overturning device is used for overturning a tower drum from a horizontal state to a vertical state and comprises a tower drum overturning supporting seat, the tower drum overturning supporting seat comprises a first overturning supporting seat and a second overturning supporting seat, the first overturning supporting seat and the second overturning supporting seat respectively comprise a fixed support and a rotating support, the rotating support comprises a rotating arm and a supporting part, and the rotating arm is rotatably connected with the fixed support; the supporting part is formed on the rotating arm along the radial direction and used for fixedly supporting the first end of the tower. The tower mounting system comprises a tower turnover device as described above. The invention can realize the turnover of the tower drum from the horizontal to the vertical process and reduce the deformation of the lower flange of the tower drum in the turnover process.

Description

Tower drum turnover device and tower mounting system

Technical Field

The invention relates to the technical field of wind power generation, in particular to a tower drum overturning device for overturning a tower drum of a wind generating set and a tower mounting system.

Background

When the offshore project is hoisted, the tower barrel is in a lying state when being transported from the transport ship to the installation ship, and in the process of installing the wind generating set, the tower barrel needs to be turned over, namely, the tower barrel is turned over from a horizontal state to a vertical state and then is installed.

FIG. 1 is an assembly schematic diagram of a tower drum turning device used for tower drum turning in the prior art. FIG. 2 is the cross-shaped support structure 5 of FIG. 1 mounted to the tower lower flange 104. Fig. 3 is a left side view of the tower turnover device of fig. 1 without the cross-shaped support structure 5. As shown in fig. 1, the conventional tower turn-over apparatus is completed by two cranes, a main crane spreader 1 is connected to an upper flange 102 at a second end 103 of a tower 100, and a tail crane spreader 2 is connected to a lower flange 104 at a first end 101 of the tower. When the tower drum 100 is turned over, firstly, the main crane sling 1 and the tail sliding crane sling 2 horizontally lift the tower drum 100 to a certain height, then the main crane sling 1 continuously lifts the second end 103 of the tower drum 100, the tail sliding crane sling 2 slowly descends until the tower drum 100 is in a vertical state, the tail sliding crane sling 2 is removed, and the main crane sling 1 continuously lifts to complete the assembly of the tower drum 100.

Because the two cranes are used for completing the hoisting operation of the tower barrel in a cooperative manner, the requirements on cooperation and tacit of operators of the two cranes are high. Meanwhile, the two cranes have high requirements on site space, and cannot be applied to sites such as sea and the like due to insufficient space.

In addition, with the design demand and development of the upsizing of the offshore wind turbine generator, the diameter of the tower is gradually increased. In particular, for large unit volume projects, the wall thickness of the tower and the attachment flange need to be as light as possible in weight to meet the strength and fatigue loads for manufacturing cost savings. The diameter of the tower is increased along with the increase of the capacity of the unit due to the power and the load of the designed unit, but the wall thickness of the tower and the width and the thickness of the flange are not increased in proportion, so that the flange of the tower has the risk of hoisting deformation in the turning process. In particular, as shown in fig. 3, the tail-slipping

lifting lugs

3 and 4 are generally installed near the top of the first end 103 of the tower, so that the installation and the disassembly are very difficult, the installer needs to climb a ladder or a hanging basket to install the tail-slipping lifting lugs, and the installer has a great safety risk. Moreover, even if the tail sliding

lifting lugs

3 and 4 are successfully installed, the flange of the tower barrel can elastically deform due to self weight because the diameter of the tower barrel 100 is large; meanwhile, there is a risk of flange deformation at the connecting portion of the tower lower flange 104 with the tail-sliding

lifting lugs

3 and 4, and a cross-shaped support structure 5 as shown in fig. 2 needs to be installed on the tower lower flange 104 to prevent flange deformation. The flange deformation leads to that the bolt can not pass into in tower section of thick bamboo butt joint in-process, needs to rectify with the help of extra hydraulic pressure expanding unit, and the rectification is successful still need again to rectify the support position and detect a flaw again, do anticorrosive.

Therefore, a tower drum turning tool capable of reducing deformation of a tower drum in the turning process is needed.

Disclosure of Invention

In view of the deficiencies in the prior art, it is an object of the present invention to address one or more of the problems in the prior art as set forth above. For example, one of the purposes of the present invention is to provide a tower drum turning tool for turning a tower drum from a horizontal state to a vertical state and reducing tower drum deformation during the tower drum turning process.

In order to achieve the above object, an aspect of the present invention provides a tower turnover device for turning a tower from a horizontal state to a vertical state. The tower drum overturning device comprises a tower drum overturning supporting seat, the tower drum overturning supporting seat comprises a first overturning supporting seat and a second overturning supporting seat, the first overturning supporting seat and the second overturning supporting seat respectively comprise a fixed support and a rotating support, the rotating support comprises a rotating arm and a supporting part, and the rotating arm is rotatably connected with the fixed support; the supporting part is formed on the rotating arm along the radial direction and used for fixedly supporting the first end of the tower.

Alternatively, the first end of the tower may be formed with a coupling flange (i.e., a tower lower flange), the support portion may be formed in a circular arc shape or a circular ring shape corresponding to the circular ring shape of the lower flange, and the support portion may be formed with a coupling hole for coupling with the lower flange.

Alternatively, the rotating arm may be rotatably connected to the fixed support via a rotating shaft, and through holes for the rotating shaft to pass through may be provided on the rotating arm and the fixed support.

Optionally, the tower overturning device may further include a positioning mechanism for limiting the rotation of the rotating arm relative to the fixed support.

Optionally, the positioning mechanism may include a positioning pin shaft, and the rotating arm and the fixing support may be provided with a positioning pin shaft hole through which the positioning pin shaft passes.

Alternatively, the support portion may include a first support portion formed on the first inversion support base and a second support portion formed on the second inversion support base, and both the first support portion and the second support portion may be formed in a circular arc shape corresponding to a portion of the lower flange, and the circular arc length may not exceed 1/2 circumferences of the lower flange.

Alternatively, the arc length of the first supporting portion and the second supporting portion may be 1/4 circumferences of the lower flange, and in the case that the tower is overturned to support the first end of the tower, the first supporting portion and the second supporting portion may be symmetrically arranged along the circumferential direction of the tower.

Alternatively, the support portions of the first and second overturn supporting seats may be formed as an integral structure. That is, the first support part and the second support part may be formed as an integral structure.

Optionally, the tower turnover device may further include a lifting mechanism for lifting the second end of the tower, and when the first end of the tower is supported by the tower turnover support base and the lifting mechanism raises the second end of the tower, the rotating arm rotates relative to the fixed support.

Another aspect of the invention provides a tower mounting system. The tower mounting system comprises the tower overturning device. The tower mounting system further comprises an impeller assembling device. The impeller assembling device comprises an impeller support and a plurality of supporting legs. The impeller support can comprise an impeller support body and a connecting flange, and the impeller support body is arranged on an external supporting platform; the connecting flange is formed at the top end of the impeller support body and is used for being connected with the hub of the impeller. The first end of each landing leg of a plurality of landing legs is connected with impeller support body's lower part detachably, and the second end orientation is kept away from impeller support body's direction and is extended, and a plurality of landing legs are provided along impeller support body's circumference interval and are radial arrangement. The bottom of the fixed support is arranged on at least two support legs of the plurality of support legs, a connecting pin shaft is arranged on the fixed support, and the connecting pin shaft penetrates through a connecting pin shaft hole in the impeller support body so as to fixedly connect the fixed support and the impeller assembling device; alternatively, the bottom of the fixed support may be mounted directly on the external support platform.

Optionally, the tower mounting system may further comprise unloading means, which may comprise a crane, a lifting beam, a second set of straps and a third set of straps. The first end of the sling of the second sling group is connected with a lifting hook of a crane, and the second end of the sling is connected with the upper part of the hanging beam. The first end of the hanging strip of the third hanging strip group is connected with the lower part of the hanging beam, and the second end of the hanging strip is hung on the tower barrel. One of the plurality of legs is used as a suspension beam.

Compared with the prior art, the tower barrel turning device is designed, so that the tower barrel can be turned from the horizontal to the vertical process without mounting and dismounting the tail sliding lifting lug, and the flange cannot be deformed due to stress concentration caused by tension in the tower barrel turning process. In addition, one supporting leg of the impeller assembling tool is used as a hanging beam for unloading and hoisting of the tower cylinder, so that the design and manufacturing cost of the special tower cylinder unloading and hoisting tool is saved.

Drawings

The above and other objects and features of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is an assembly schematic diagram of a tower drum turning device used for tower drum turning in the prior art.

FIG. 2 is a cross-shaped support structure mounted to the lower flange of the tower of FIG. 1.

Fig. 3 is a left side view of the tower turnover device of fig. 1 without the inclusion of a cross-shaped support structure.

FIG. 4 is a schematic illustration of an unloading condition of a tower mounting system according to an exemplary embodiment of the present invention.

FIG. 5 is a schematic illustration of a roll-over condition of a tower mounting system according to an exemplary embodiment of the present invention.

FIG. 6 is a schematic view of a tower overturning support base of the tower overturning device according to an exemplary embodiment of the present invention.

FIG. 7 is a schematic view of another angle of the tower turnover support base of the tower turnover device according to an exemplary embodiment of the present invention.

FIG. 8 is an exploded view of the tower turnover support base of the tower turnover device in accordance with an exemplary embodiment of the present invention.

FIG. 9 is a schematic view of an impeller assembly device of a tower mounting system according to an exemplary embodiment of the present invention.

Fig. 10 is a schematic view of the impeller mounting apparatus of fig. 9 with an extension of one leg removed.

Fig. 11 is a schematic view of the hub assembled with the impeller assembly device shown in fig. 10.

Fig. 12 is a schematic view of the impeller assembly device of fig. 11 not assembled with the hub.

Fig. 13 is an assembly view of the tower turnover support base of fig. 6 and the impeller assembling device of fig. 9.

Description of reference numerals:

1: main hoist, 2: tail crane hoist of swift current, 3, 4: tail-sliding lifting lug, 5: a support structure shaped like a Chinese character 'mi';

100: a tower tube, 101: second end of the tower, 102: tower drum upper flange, 103: first end of the tower, 104: tower lower flange, 104 a-threaded hole, 200: a hub;

110: hoisting mechanism, 111, 112: hanger, 113, 114: harness, 115: hook, 120: tower section of thick bamboo upset supporting seat, 121: first fixed mount, 121a, 122 a: connecting pin shaft, 122 b: positioning pin shaft hole, 122: second fixing mount, 123: first rotary support, 123 a: first rotating arm, 123 b: first support portion, 124: second rotary support, 124 a: second rotating arm, 124 b: second support portion, 123c, 124 c: connection hole, 124 d: dowel hole, 125: first rotation axis, 126: second rotation shaft, 131: a second positioning pin shaft;

20: impeller assembly device, 210: impeller support, 211: impeller holder body, 212: connection flange, 213, 214: connecting pin shaft hole, 220: leg, 221: extension, 222: a fixed portion;

30: unloading device, 310: suspension beam, 321, 322, 323, 324: harness, 331, 332, 333, 334: lifting lug, 340: and (4) a lifting hook.

Detailed Description

In the following, the turning device of the tower and the tower mounting system according to the invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.

It will be understood that the use of the terms first, second, etc. may not denote any order or importance, but rather the terms first, second, etc. may be used to distinguish one element from another.

In addition, for convenience of description, the terms "left", "right", "up" and "down" used hereinafter are the same as the left, right, up and down directions of the drawings, but do not limit the structure of the present invention.

FIG. 4 is a schematic illustration of an unloading condition of a tower mounting system according to an exemplary embodiment of the present invention. FIG. 5 is a schematic illustration of a roll-over condition of a tower mounting system according to an exemplary embodiment of the present invention. FIG. 6 is a schematic view of a tower overturning support base of the tower overturning device according to an exemplary embodiment of the present invention. FIG. 7 is a schematic view of another angle of the tower turnover support base of the tower turnover device according to an exemplary embodiment of the present invention. FIG. 7 is an exploded view of a tower turnover support base of the tower turnover device in accordance with an exemplary embodiment of the present invention.

As shown in fig. 4 and 5, the tower mounting system according to the exemplary embodiment of the present invention includes a tower overturning device, an impeller assembling device 20, and an unloading device 30. Wherein the unloading device 30 is used for dumping the tower 100 from the carrier to the installation vessel in a horizontal state and for transporting the tower 100 to the installation position with the hub 200 or other towers. The tower turnover device is used for turning the tower 100 from a horizontal state to a vertical state. The impeller assembly device 20 is used to interface and assemble the tower 100 with the hub 200 or other towers.

As shown in fig. 4 to 8, the tower overturning device according to the exemplary embodiment of the present invention includes a hoisting mechanism 110 and a tower overturning support base 120. The tower overturning support base 120 is used for supporting the first end 103 of the tower during the tower overturning process, and the hoisting mechanism 110 is used for lifting the second end 101 of the tower 100.

In an embodiment, as shown in fig. 4 and 5, the hoisting mechanism 110 comprises a crane, hoisting

seats

111 and 112 and a first set of straps. Two hanging

seats

111 and 112 are respectively mounted on the tower upper flange 102 and are circumferentially and symmetrically arranged on the end face of the second end 101 of the tower 100. The first strap set includes two

straps

113 and 114. A harness 113 is connected at a first end to the hanger 112 and at a second end to the crane hook 115. Another sling 114 is connected at a first end to the lifting base 111 and at a second end to a crane hook 115.

During the turning process of the tower, the tower turning support base 120 is used for supporting the end face of the first end 103 of the tower. The tower drum overturning support seat 120 comprises a first overturning support seat and a second overturning support seat, the two overturning support seats are arranged oppositely and symmetrically, and the tower drum 100 is supported from two sides of the end face of the first end 103 of the tower drum.

As shown in fig. 6, the first turn-over stand includes a first fixed stand 121 and a first rotating stand 123. The first rotation mount 123 includes a first rotation arm 123a and a first support part 123 b. The first rotating arm 123a is rotatably connected to the first stationary holder 121 through a first rotating shaft 125 (refer to fig. 8), rotatable in a vertical direction. The first rotating arm 123a and the first fixing bracket 121 are provided with through holes through which the first rotating shaft 125 passes. The first axis of rotation 125 is disposed horizontally and aligned with the axis of the tower 100. The first support portion 123b extends laterally with respect to the first rotary support arm 123 at an end of the first rotary support arm 123 a. Specifically, a first support portion 123b is formed on the first rotating arm 123a in a radial direction for fixedly supporting the first end 103 of the tower 100. The first support portion 123b is formed with a plurality of attachment holes 123c corresponding to the threaded holes 104a of the tower lower flange 104.

The second roll-over support includes a second fixed support 122 and a second rotating support 124. The second rotation mount 124 includes a second rotation arm 124a and a second support portion 124b formed on the second rotation arm 124a in a radial direction. The second rotating arm 124a is rotatably connected to the second fixed mount 122 via a second rotating shaft 126, through holes for the second rotating shaft 126 to pass through are provided in the second rotating arm 124a and the second fixed mount 122, the second rotating shaft 126 is coaxial with the first rotating shaft 125, and the first support portion 123b and the second support portion 124b can rotate synchronously. The second support portion 124b defines a plurality of attachment holes 124c that correspond to the threaded holes 104a of the tower lower flange 104.

In a state that the first end 101 of the tower is supported on the tower overturning support seat 120, bolts penetrate through the connection holes 123c and the threaded holes 104a of the lower flange 104 of the tower to fixedly connect the first support portion 123b with the lower flange 104 of the tower, and meanwhile, bolts penetrate through the connection holes 124c and the threaded holes 104a to fixedly connect the second support portion 124b with the lower flange 104 of the tower. Preferably, the connection holes 123c, 124c may be designed as kidney-shaped holes to accommodate more flange interfaces, and meet the connection versatility with the threaded holes 104a of the tower lower flange 104.

Because the tower lower flange 104 is annular, the first supporting portion 123b and the second supporting portion 124b are each formed in a sector ring shape corresponding to the shape of the tower lower flange 104, and each sector ring shape is a segment of an arc. In the case where the

supports

123b, 124b are provided in total of two, the arc length of each

support

123b, 124b does not exceed 1/2 of the tower lower flange 104. Preferably, the first support portion 123b and the second support portion 124b may have an arc length equal to 1/4 of the lower flange 104 of the tower, and the first support portion 123b and the second support portion 124b are circumferentially arranged along the lower flange 104 of the tower and are symmetrical to each other during the turnover of the tower. Further, instead of the first support portion 123b and the second support portion 124b having separate structures, the first support portion 123b and the second support portion 124b may be formed as an integral structure, that is, an annular support portion corresponding to the tower lower flange 104 may be formed.

During the turn-over of the tower 100, the tower lower flange 104 is supported by the first supporting portion 123b and the second supporting portion 124b, and the first supporting portion 123b and the second supporting portion 124b rotate around the rotating

shafts

125, 126 during the turn-over of the tower 100, so that the tower lower flange 104 is not deformed due to stress concentration caused by local tension during the turn-over of the tower 100. In addition, when the tower drum 100 is in a horizontal state, because the first supporting portion 123b and the second supporting portion 124b are not installed at the top of the tower drum lower flange 104, the bolt connection position is in the horizontal direction, the operation height is reduced, and an installer can complete bolt installation and disassembly operations on a deck, so that the operation safety is ensured, and the problems of personal safety caused by difficult installation and disassembly and high climbing risks of the tail sliding lifting lugs 3 and 4 in the prior art are solved.

The tower tilt mount may also include a positioning mechanism for limiting rotation of the rotating

arms

123a, 124a relative to the

stationary mounts

121 and 122. The positioning mechanism includes two positioning pins, and the rotating

arms

123a, 124a and the fixing supports 121 and 122 are respectively provided with positioning

pin shaft holes

124d, 122b for the two positioning pins to pass through, wherein fig. 7 shows the positioning pin shaft hole 122b on the second fixing support 122, fig. 8 shows the positioning pin shaft hole 124d on the second rotating arm 124a and the second positioning pin 131, and the second positioning pin 131 simultaneously passes through the positioning pin shaft hole 124d on the second rotating arm 124a and the positioning pin shaft hole 122b on the second fixing support 122, so as to relatively fix the second rotating arm 124a and the second fixing support 124. Similarly, a first positioning pin shaft (not shown) is provided in the first flipping support seat and positioning pin shaft holes (not shown) similar to the positioning

pin shaft holes

122b, 124d in the second flipping support seat are provided on the first fixing support seat 121 and the first rotating arm 123a, and the first positioning pin shaft simultaneously passes through the positioning pin shaft hole on the first rotating arm 123a and the positioning pin shaft hole on the first fixing support seat 121 to fix the first rotating arm 123a relative to the first fixing support seat 121. The first and

second support portions

123b and 124b are fixed relative to the fixed

supports

121 and 122 at predetermined positions by a positioning mechanism, so as to facilitate installation between the first and

second support portions

123b and 124b and the tower lower flange 104. More specifically, the positioning mechanism fixes the rotating

arms

123a, 124a in a position rotated 90 degrees with respect to the fixed

supports

121 and 122, so that the lower flange 104 of the tower is connected to the first support 123b and the second support 124b in a horizontal state of the tower 100.

FIG. 9 is a schematic view of a wheelset assembly 20 of a tower mounting system according to an exemplary embodiment of the invention. Fig. 10 is a schematic view of the impeller builder 20 of fig. 9 with an extension 221 of one leg 220 removed. Fig. 11 is a schematic view of the hub 200 assembled with the impeller assembly device 20 shown in fig. 10. Fig. 12 is a schematic view of the impeller assembly device 20 of fig. 11 not assembled with the hub 200. Fig. 13 is an assembly view of the tower turnover support base of fig. 6 and the impeller assembling device 20 of fig. 9.

As shown in fig. 9 to 13, the impeller assembly device 20 includes an impeller seat 210 and a plurality of legs 220. The impeller seat 210 includes an impeller seat body 211 and a connecting flange 212. The impeller seat body 211 is mounted on an external support platform (e.g. the deck of an installation vessel), in an embodiment the impeller seat body 211 is cylindrical. A coupling flange 212 is provided at the top end of the impeller seating body 211 for coupling with the hub 200 of the impeller to facilitate assembly of the impeller. The first end of each of the plurality of support legs 220 is detachably connected with the lower part of the impeller seat body 211, the second end extends towards the direction far away from the impeller seat body 211, and the plurality of support legs 220 are uniformly arranged along the circumference of the impeller seat body 211 at intervals and are radially arranged. The leg 220 includes an extension 221 and a fixing portion 222 formed as a long leg. The fixing portion 222 is detachably connected to the extension portion 221, for example, in an embodiment, the fixing portion 222 has an opening into which the extension portion 221 is inserted and fixed.

When the tower overturn carrier 120 is used in cooperation with the impeller assembly device 20, the bottom portions of the first and second fixing

carriers

121 and 122 may be mounted on at least two of the plurality of legs 220 (refer to fig. 7). The first fixing support 121 is further provided with a connecting pin shaft 121a extending transversely, the connecting pin shaft 121a penetrates through a connecting pin shaft hole 213 on the impeller support body 211, the second fixing support 122 is further provided with a connecting pin shaft 122a, and the connecting pin shaft 122a penetrates through a connecting pin shaft hole 214 on the impeller support body 211, so that the first fixing support 121, the second fixing support 122 and the impeller assembling device 20 are fixedly connected. The invention is not limited to this, and the tower drum overturning support seat according to the embodiment of the invention may also be fixed on other support platforms, for example, directly fixed with a ship deck through bolts.

The unloading device 30 comprises a crane, a lifting beam 310, a second set of straps and a third set of straps. The suspension beam 310 is horizontally disposed, and two lifting

lugs

331 and 332 are disposed at the upper portion of the suspension beam 310, and four lifting

lugs

333 and 334 are disposed at the lower portion thereof. The

straps

321, 322 of the second strap set are connected at a first end to a hook 340 of the crane and at a second end to lifting

eyes

331, 332 at the upper part of the lifting beam 310. The

straps

323, 324 of the third set of straps have first ends connected to the lifting lugs 333, 334 of the lower portion of the lifting beam 310 and second ends looped over the tower 100. Wherein the second end of the strap 323 is suspended proximate the second end 101 of the tower and the second end of the strap 324 is suspended proximate the first end 101 of the tower. In the embodiment, one of the legs is used as the hanging beam 310, so that the beam has dual purposes, and the manufacturing period and the cost of the tower unloading hanging beam are saved.

The process of installing the tower using the above-described tower installation apparatus will be described in detail below, including:

1) as shown in fig. 13, the tower turnover device is mounted on the impeller assembly device 20 by inserting the connection pins 121a and 122a into the connection pin holes 213 and 214 of the impeller assembly device, and bolting the bottoms of the first and second fixing supports 121 and 122 to the support legs 220.

2) As shown in fig. 7, the first rotating support 123 and the second rotating support 124 are rotated to a horizontal state, such that the first support 123b and the second support 124b face the tower lower flange 104, and then the first positioning pin is inserted into the positioning pin hole of the first rotating arm 123a and the positioning pin hole of the first fixing support 121, and the second positioning pin 131 is inserted into the positioning pin hole 124d of the second rotating arm 124a and the positioning pin hole 122b of the second fixing support 122, such that the first rotating support 123 and the second rotating support 124 are fixed in the horizontal state.

3) Tower unloading

The offloading device 30 is used to hoist the tower 100 from the transport vessel to the installation vessel in a horizontal position and to align the tower lower flange 104 with the first support 123b and the second support 124b, respectively. The hook 340 is connected with the lifting lugs 331 and 332 on the upper part of the hanging beam 310 through the hanging

strips

321 and 322, the upper ends of the hanging strips 323 and 324 are connected with the lifting lugs 333 and 334 on the lower part of the hanging beam 310, and the other ends of the hanging strips are hung near the two ends of the tower tube 100. The crane provides power to complete the unloading of the tower 100.

4) Tower frame turnover working condition

As shown in FIG. 4, the first support portion 123b and the second support portion 124b are respectively bolted to the tower lower flange 104. The lifting mechanism 110 is connected to the second end 101 of the tower. The connection between the discharge means 30 and the tower 100 is then removed, i.e. the lifting beams 310 and the lifting straps 323, 324, etc. The first and second positioning pins 131 are pulled out so that the first and second rotating holders 123 and 124 can freely rotate about the rotating

shafts

125 and 126. As shown in fig. 5, the second end 101 of the tower is slowly lifted by the crane, and when the first end 103 of the tower 00 is supported by the tower overturning support base and the lifting mechanism 110 raises the second end 101 of the tower 100, the rotating

arms

123a, 124a rotate relative to the fixed

supports

121, 122, so that the tower 100 is lifted from the horizontal state to the vertical state. And dismantling the bolt connection between the first supporting part 123b and the second supporting part 124b and the tower lower flange 104 to complete the tower turnover operation.

3) Impeller assembly working condition

The suspension beams 310, which are the extensions 221 of the legs 220, are inserted into the fixing portions 222, so that the impeller assembling device 20 is stably placed on the deck, and the assembly of the impeller is facilitated. The tower 100 is hoisted by a crane and assembled with the hub 200 or a tower already mounted on the hub 200.

The tower mounting system according to the exemplary embodiment of the present invention can simultaneously achieve three functions of tower unloading, turning and splicing. The problem of flange deformation under a tower barrel when the tower barrel is horizontally turned over to be in a vertical state is solved through a turning device; through the optimization of the impeller assembling tool supporting legs, one supporting leg is used as the tower unloading hanging beam, and one beam has two purposes, so that the cost for independently designing and manufacturing the tower unloading hanging beam is saved. The problem of the high altitude installation of pylon swift current tail lug is dismantled the difficulty and is stepped on the height and bring the personal safety is solved. The problem of high altitude falling object and saving man-hour that rice word support installation and dismantlement brought is solved. The invention is not limited to the above, and the tower mounting system can also select one or two functional devices from unloading, turning and assembling according to the needs.

Although the present invention has been described above in connection with exemplary embodiments, it will be apparent to those skilled in the art that various modifications and changes may be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A tower turnover device for turning a tower (100) from a horizontal state to a vertical state, the tower turnover device comprising a tower turnover support base (120), wherein the tower turnover support base (120) comprises a first turnover support base and a second turnover support base, which are oppositely arranged and used for respectively supporting two sides of a first end (103) of the tower, the first turnover support base and the second turnover support base respectively comprise a fixed support (121, 122) and a rotating support (123, 124), and the rotating support (123, 124) comprises:

a rotating arm (123a, 124a) rotatably connected with the fixed support (121, 122);

a support (123b, 124b) formed on the rotating arm (123a, 124a) in a radial direction for fixedly supporting the first end (103) of the tower (100),

wherein, under the condition that the supporting parts (123b, 124b) fixedly support the first end (103) of the tower drum (100), the rotating arms (123a, 124a) can rotate from the horizontal direction to the vertical direction along with the rotation of the tower drum (100) from the horizontal state to the vertical state.

2. The tower turnover device as claimed in claim 1, characterized in that the first end (103) of the tower (100) is formed with a lower flange (104), the support portion (123b, 124b) is formed in a circular arc shape or a circular ring shape corresponding to the circular ring shape of the lower flange (104), and the support portion (123b, 124b) is formed with a coupling hole (123c, 124c) for coupling with the lower flange (104).

3. The tower turnover device of claim 1, characterized in that the rotating arm (123a, 124a) is rotatably connected to the fixed support (121, 122) via a rotating shaft (125, 126), and the rotating arm (123a, 124a) and the fixed support (121, 122) are provided with through holes for the rotating shaft (125, 126) to pass through.

4. The tower turnover device as claimed in claim 1, further comprising a positioning mechanism for limiting rotation of the rotating arm (123a, 124a) relative to the fixed support (121, 122).

5. The tower turnover device of claim 4, wherein the positioning mechanism includes a positioning pin (131), and the rotating arms (123a, 124a) and the fixing supports (121, 122) are provided with positioning pin holes (124d, 122b) for the positioning pin (131) to pass through for fixing the rotating arms (123a, 124a) in a horizontal direction.

6. The tower turnover device of claim 2, wherein the supports (123b, 124b) include a first support (123b) formed on the first turnover support base and a second support (124b) formed on the second turnover support base, and wherein the first support (123b) and the second support (124b) are each formed in an arc corresponding to a portion of the lower flange (104) and have an arc length not exceeding 1/2 circumferences of the lower flange (104).

7. The tower turnover device of claim 6, wherein the first support portion (123b) and the second support portion (124b) have an arc length of 1/4 circumferences of the lower flange (104), and the first support portion (123b) and the second support portion (124b) are symmetrically arranged along the circumference of the lower flange (104) when the tower turnover support base supports the first end (103) of the tower (100).

8. The tower turnover device of claim 1, wherein the support portions (123b, 124b) of the first and second turnover supports are formed as a unitary structure.

9. The tower turnover device of claim 1, further comprising a lifting mechanism (110) for lifting the second end (101) of the tower (100), wherein the rotating arm (123a, 124a) rotates relative to the fixed support (121, 122) when the first end (103) of the tower (100) is supported by the tower turnover support base and the lifting mechanism (110) raises the second end (101) of the tower (100).

10. A tower mounting system, comprising a tower turnover device as claimed in any one of claims 1 to 9, the tower mounting system further comprising a wheelset assembly (20), the wheelset assembly (20) comprising:

an impeller mount (210), the impeller mount (210) comprising: an impeller seat body (211) mounted on an external support platform; and a connection flange (212) formed at a top end of the impeller seat body (211) for connection with a hub (200) of an impeller; and

a plurality of legs (220), each of the plurality of legs (220) having a first end detachably connected to a lower portion of the impeller seat body (211) and a second end extending away from the impeller seat body (211), the plurality of legs (220) being radially arranged along a circumferential direction of the impeller seat body (211);

the bottom of the fixed support (121, 122) is arranged on at least two support legs of the plurality of support legs (220), the fixed support (121, 122) is provided with a connecting pin shaft (121a, 122a), and the connecting pin shaft (121a, 122a) penetrates through a connecting pin shaft hole (213, 214) on the impeller support body (211) so as to fixedly connect the fixed support (121, 122) and the impeller assembling device (20).