CN109667724B

CN109667724B - Rainproof cover for tower barrel

Info

Publication number: CN109667724B
Application number: CN201910086213.3A
Authority: CN
Inventors: 方晶; 沈星星; 葛中原
Original assignee: Jiangsu Goldwind Science and Technology Co Ltd
Current assignee: Jiangsu Goldwind Science and Technology Co Ltd
Priority date: 2019-01-29
Filing date: 2019-01-29
Publication date: 2022-07-19
Anticipated expiration: 2039-01-29
Also published as: CN109667724A

Abstract

The invention provides a rain cover for a tower barrel. Detachably installs the hanging seat on the terminal surface of a tower section of thick bamboo, rain-proof lid includes: the rain cover main body is detachably arranged on the end face to cover the end face, and a notch part is formed at the position, corresponding to the hanging seat, of the rain cover main body; the cover body, the cover body sets up in breach part department and can hold the seat of hanging, is provided with the hole for hoist on the cover body. The rain cover provided by the invention can be suitable for rain sealing of the tower barrel with the hanging seat arranged on the end face, and can protect the electric elements in the tower barrel from being damaged.

Description

Rainproof cover for tower drum

Technical Field

The invention relates to the technical field of wind power generation, in particular to a rainproof cover for a tower of a wind generating set.

Background

The single machine capacity of the offshore wind generating set is gradually increased, the diameter of the corresponding tower barrel is also gradually increased, and the requirements on the temperature and humidity of an electric element in the tower barrel and the sealing performance are gradually improved.

Typically, the top of the tower is covered with a flashing cloth to protect the tower from rain when the tower is in a vertical storage position, however this approach is not suitable for protecting the tower from rain when the tower is in a horizontal storage position. In addition, in the tower section of thick bamboo hoist and mount in-process, also can meet the condition of unexpected rain, the electric elements in the tower section of thick bamboo exists because of the risk that takes place to damage of drenching with the rain. In addition, the rain-proof cloth is easy to damage when being blown by wind and sun.

Disclosure of Invention

In view of the deficiencies of the prior art, it is an object of the present invention to address one or more of the problems of the prior art as set forth above. For example, it is an object of the present invention to provide a rain cover for a rain seal of a tower having a hanging base mounted on an end surface thereof.

The invention provides a rain cover for a tower drum, wherein a hanging seat is detachably arranged on the end face of the tower drum, and the rain cover comprises: the rain cover main body is detachably arranged on the end face to cover the end face, and a notch part is formed at the position, corresponding to the hanging seat, of the rain cover main body; the cover body, the cover body sets up in breach part department and can hold the lifting seat, is provided with the hole for hoist on the cover body.

Optionally, the cover is rotatably connected to the rain cover body to be able to open or close to cover or expose the hanging seat. The cover body can be arranged at the gap part of the rain cover main body in an openable and closable manner, when rain does not appear, the cover body can be opened, a sling for hoisting a tower drum can be directly connected with the hanging seat, and the operation is more convenient and faster; even if the rain falls suddenly, the rain-proof function can be realized by closing the cover body.

Optionally, the rain cover may further include a driving unit for driving the cover body to open or close, and the driving unit may include a rack and pinion structure, a hydraulic cylinder structure, a worm and gear structure, a pneumatic structure, or a threaded lead screw structure.

Alternatively, the driving unit may include: the supporting seat is arranged on the rain cover main body; the speed reducer is arranged on the supporting seat; the arc-shaped rack is meshed with the gear of the speed reducer; and the driving structure drives the speed reducer so that the gear of the speed reducer moves along the arc-shaped rack.

Optionally, the rain-proof lid can also include the slip supporting component, and the slip supporting component can include: the sliding chute is arranged on the rain cover main body; and one end of the supporting rod is connected with the cover body, and the other end of the supporting rod can slide in the sliding groove, so that the cover body is supported in the opening and closing processes of the cover body.

Optionally, the rain cover may be formed by splicing or integrally formed a plurality of fan-shaped pieces. Form into a plurality of fan-shaped lamellar bodies with rain-proof lid, can solve because of rain-proof lid size too big and the problem that is difficult to make in the workshop to a plurality of fan-shaped lamellar bodies can be separated the transportation or pile together and transport, have solved the difficult problem of transportation because of rain-proof lid size is too big and lead to.

Optionally, a flange may be disposed on an end face of the tower barrel, an arc-shaped or circular-ring-shaped connecting strip corresponding to the flange may be disposed on the periphery of the rain cover, and a connecting hole for connecting with the flange is formed on the connecting strip. Therefore, the rainproof cover can be matched and fastened with tower drum flanges with different diameters and reference circles, and the universality is high.

Optionally, the rain cover may be provided with unloading and/or lifting points.

Optionally, the vertical hoisting lifting point used for hoisting the rain cover to the end face of the vertically placed tower drum in a horizontal state in the hoisting lifting point can be arranged at the outer edge close to the rain cover, and the rain cover can further comprise a manhole arranged near the vertical hoisting lifting point and a manhole cover arranged at the manhole position in an openable manner. Thereby, the installation and the dismantlement of the hoist cable of vertical hoist and mount department are convenient for.

Alternatively, the hanger may be at least two, and each hanger may include: the base is detachably arranged on the end face of the tower barrel; two support plates formed on the base and spaced apart from each other, each support plate having a through-hole formed therein; the pin shaft can be inserted into the through hole or withdrawn from the through hole; and a driving mechanism provided on one of the two support plates for driving the pin shaft to be connected to or released from the hoist rope. The lifting seat can realize the connection and disconnection of the sling and the pin shaft, and is convenient for field operation.

Alternatively, the drive mechanism may comprise: one end of the sleeve is connected to one side, back to the other support plate, of one support plate in the two support plates and communicated with the through hole, the other end of the sleeve extends in the direction far away from the support plates, and the pin shaft can be inserted into the sleeve; the end plate is arranged at the other end of the sleeve, and a threaded hole is formed in the end plate; and one end of the threaded rod penetrates through the threaded hole to be connected with the pin shaft, and the other end of the threaded rod can drive the threaded rod to rotate according to the driving force input from the outside.

Optionally, the rain cover may further include a skylight at a center of the rain cover and a skylight cover openably and closably disposed at the skylight.

Compared with the prior art, the invention has the beneficial effects that: be applicable to the terminal surface and be provided with the rain-proof sealed of the tower section of thick bamboo of hanging the seat to can deposit and play rain-proof sealed effect under multiple operating modes such as hoist and mount with vertical state at a tower section of thick bamboo, the inside electric elements of protection tower section of thick bamboo avoids the damage of moisture.

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 a schematic diagram illustrating assembling of a rain cover for a tower according to an exemplary embodiment of the present invention.

FIG. 2 is a schematic perspective view of a tower incorporating a rain cover for the tower according to an exemplary embodiment of the present invention hoisted when the tower is in an upright position and the flip mechanism is open.

Fig. 3A is a schematic view of a flip mechanism for a rain cover of a tower according to an exemplary embodiment of the present invention, wherein the flip mechanism in fig. 3A is rotated 180 ° with respect to the flip mechanism in fig. 2 for ease of understanding.

Fig. 3B is an exploded view of the flip mechanism of fig. 3A.

FIG. 4A is a perspective view of the tower mounted hanger shown in FIG. 2.

Fig. 4B is a sectional view taken along line a-a of fig. 4A.

FIG. 4C is a schematic view of the hanger of FIG. 4A with the pin retracted into the sleeve.

FIG. 5 is a schematic perspective view of a tower incorporating a rain cover for the tower according to an exemplary embodiment of the present invention hoisted when the tower is in an upright position and the flip mechanism is closed.

FIG. 6 is a schematic perspective view of a tower hoisted with a rain cover for the tower according to an exemplary embodiment of the present invention when the tower is in a horizontal state and the cover-turning mechanism is open.

1. 2, 3, 4, 6, 7, 8, 9, 10 and 11: sling, 5: hook, 12: hanging beam, 13: a tower, 14: connecting strip, 15: flange, 16: first fastener, 17: second fastener, 100: rain-proof lid main part, 110: first blade, 120: second blade, 130: third panel, 140: fourth sheet, 111, 121, 131 and 141: first suspension point, 112, 122, 132 and 142: second hoisting points, 113, 123, 133, and 143: third suspension point, 114, 124, 134 and 144: manhole cover, 150: skylight cover, 160: reinforcing bars, 200 and 300: flip mechanism, 201 and 301: cover body, 202: arc rack, 203: speed reducer, 204: supporting seat, 205: hand-operated disc, 206, 207, 302 and 303: support bars, 208, 209, 304, and 305: chute, 210 and 306: lifting hole, 400 and 500: hanging seat, 401: pin, 402: base, 403 and 404: support plate, 405: sleeve, 406: end plate, 407: threaded rod, 408: hand-operated dial, 409: a handle.

Detailed Description

Hereinafter, the rain cover for a tower according to the present 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. do 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.

As shown in fig. 1 and 2, the wind turbine generator system tower 13 has hanging

seats

400 and 500 on the end face. The rain cover for a tower according to an exemplary embodiment of the present invention includes a rain cover main body 100 and a

flip mechanism

200 and 300. The rain cover main body 100 is detachably mounted on the end face of the tower 13 to cover the end face of the tower 13, and a notched portion is formed at a position of the rain cover main body 100 corresponding to the hanging

seats

400 and 500; the

flip cover mechanisms

200 and 300 are disposed at the cutaway portions in an opening or closing manner to cover or expose the

hangers

400 and 500.

The invention is provided with a special rain cover aiming at the tower drum 13, the rain cover is detachably arranged on the end face of the tower drum 13, and the

openable flip mechanisms

200 and 300 are formed at the positions corresponding to the hanging

seats

400 and 500, so that the rain cover can effectively enter the tower drum 13 through the rain cover under the condition that the hanging

seats

400 and 500 are arranged on the end face of the tower drum 13, and the rain cover can be suitable for rain sealing of the tower drum 13 under different conditions (for example, working conditions of storing, hoisting and the like in a vertical state or a horizontal state), and can protect electric elements in the tower drum 13 from being damaged by moisture. Here, the moisture may include rainwater, snow water, and the like.

In particular, the rain cover may be formed of a hard material (e.g., steel). The rain cover main body 100 covers the end surface of the tower 13 except for the portions where the

hanging brackets

400 and 500 are provided. The rain cover main body 100 is formed with a cut-out portion corresponding to the positions of the hanging

seats

400 and 500 provided on the end face of the tower 13.

The rain cover body 100 is detachably mounted on the end face of the tower 13. As shown in fig. 2, a flange 15 is disposed on an end face of the tower 13, an arc-shaped or circular ring-shaped connecting strip 14 corresponding to the flange 15 is disposed on an outer periphery of the rain cover main body 100, and a connecting hole for connecting with the flange 15 of the tower 13 is formed on the connecting strip 14. First fasteners 16 (e.g., bolts, pins, rivets, anchors, etc.) pass through the attachment holes in the attachment strips 14 and the bolt holes in the flange 15 to secure the rain cover body 100 and the flange 15 together. Through connecting strip 14, can make rain-proof lid and the tower section of thick bamboo flange phase-match of different diameters and reference circle and fasten, the commonality is strong. Preferably, the coupling hole of the coupling strip 14 through which the first fastening member 16 passes is formed as an elongated hole, such as a kidney-shaped hole, so that the mounting position of the first fastening member 16 can be adjusted to match the bolt holes of different flanges. The connecting strip 14 may be a steel strip.

The

flip cover mechanisms

200 and 300 are disposed at the cutaway portions in an opening or closing manner to expose or cover the

hangers

400 and 500. The

flip cover mechanisms

200 and 300 are provided with lifting holes 210 and 306 (see fig. 5) through which lifting slings (e.g., slings) 10 and 11 for lifting are passed. When tower 13 meets the rainy condition in the hoisting process, the rainproof requirement of tower 13 in the hoisting process can be met by closing

flip mechanisms

200 and 300.

According to the embodiment of the present invention, as shown in fig. 2, two hanging

brackets

400 and 500 are provided on the end surface of the tower 13, and the two hanging

brackets

400 and 500 are different by 180 ° in the circumferential direction of the tower 13. Accordingly, two

flip mechanisms

200 and 300 are provided, and the two

flip mechanisms

200 and 300 are also different by 180 ° in the circumferential direction of the rain cover main body 100. In the present embodiment, the number of the

flip mechanisms

200 and 300 and the

hangers

400 and 500 are two and correspond one to one. That is, the folder mechanism 200 corresponds to the hanger 400, and the folder mechanism 300 corresponds to the hanger 500. The present invention is not limited thereto and the number and the installation position of the flip mechanisms may be adjusted according to the number and the installation position of the hangers.

The flip cover mechanism 200 and the hanger 400 are described in detail below as an example.

As shown in fig. 2, 3A, 3B, and 5, the flip mechanism 200 may include a cover 201 and a driving unit.

The cover 201 is rotatably coupled to the rain cover main body 100 to be able to be opened or closed. The cover 201 has a size capable of covering the cut-out portion of the rain cover main body 100 and has a space capable of accommodating the hanging

seats

400 and 500. When the cover 201 is closed, the cover 201 can cover the hanging seat 400; when the cover 201 is opened, the cover 201 can expose the hanger 400. The cover 201 is provided with a lifting hole 210 for the sling 10 to pass through. In an exemplary embodiment of the present invention, the cover 201 is separated from the rain cover main body 100, and the cover 201 is openably and closably connected to the rain cover main body 100. When the rain-proof cover is used, the cover body 201 can be opened under the condition that rain does not fall, the light at the hanging seat 400 is better, the sling 10 can be directly connected to the hanging seat 400, and the operation is simple; and even if the rain suddenly falls, the cover body 201 can be closed, and then the sling 10 passes through the lifting hole 210 to be connected with the lifting seat 400, so that the tower 13 can be protected from rain in the lifting process. However, the present invention is not limited thereto, and the cover 201 may also be integrally formed with the rain cover main body 100, in this case, the cover 201 is always in the closed state, which is equivalent to the flip mechanism 200 having no flip function, and the rain cover with such a structure can prevent moisture from entering into the tower 13 no matter whether it rains or not.

The driving unit is used for driving the cover 201 to open or close. In this embodiment, the driving unit may include a rack and pinion structure, a support base 204, and a driving structure. The support base 204 is disposed on the rain cover main body 100 for supporting the rack and pinion structure. The driving structure is connected with the gear rack structure to provide driving force, so as to drive the cover body 201 to open or close.

Specifically, the rack and pinion structure may include an arc-shaped rack 202 and a decelerator 203. The speed reducer 203 is mounted on the support base 204. The arc-shaped rack 202 is engaged with a gear of a decelerator 203. A drive structure, which may include a hand crank 205, is coupled to the reducer 203. The hand-operated disc 205 is manually controlled to provide driving force for the speed reducer 203, so as to drive the gear of the speed reducer 203 to rotate, and thus the arc-shaped rack 202 moves towards the direction close to or away from the speed reducer 203 along with the rotation of the gear of the speed reducer 203, and thus the cover 201 is driven to open or close. According to an exemplary embodiment of the present invention, the flip cover mechanism 200 can be opened or closed by a manual operation without the aid of mechanical tools and electric devices through a rack and pinion structure. However, the present invention is not limited thereto, and the motor may drive the reducer 203 to rotate, so as to open or close the flip mechanism 200.

Alternatively, the driving unit may further include a hydraulic cylinder structure, a worm gear structure, a pneumatic structure, or a screw structure, etc., as long as the driving unit can achieve the opening or closing of the driving covers 201 and 301.

Preferably, the flip mechanism 200 may further include support bars 206 and 207 and slide

grooves

208 and 209. The

runners

208 and 209 are provided on the rain cover body 100, for example, as shown in fig. 6, the

runners

208 and 209 extend parallel to the horizontal axis of the rain cover. The

support rods

206 and 207 have one end fixedly connected to the housing 201 and the other end slidable in the

slide grooves

208 and 209 to support the housing 201 during opening and closing of the housing 201. In the present embodiment, the number of the

support rods

206 and 207 and the

slide grooves

208 and 209 of the flip mechanism 200 is two and corresponds to one another. That is, the support rod 206 corresponds to the slide groove 208, and the support rod 207 corresponds to the slide groove 209. The invention is not limited to the above, and the number of the support rods and the chutes can be adjusted to one or more than two according to the requirement.

The detailed structure of the flip mechanism 300 is substantially the same as that of the flip mechanism 200. The flip mechanism 300 may include a housing 301, a rack and pinion structure, a support base (not shown), a driving structure (not shown), support bars 302 and 303, and sliding

grooves

304 and 305.

The cover body 301 is rotatably connected to the rain cover main body 100 to be able to open or close. The cover 301 can cover the hanger 500. The cover 301 is provided with a lifting hole 306 for the sling 11 to pass through. However, the invention is not limited thereto, and in another embodiment, the cover 201 may be integrally formed with the rain cover main body 100

The rack and pinion structure of the flip mechanism 300 is connected to the cover 301 to drive the cover 301 to open or close. The detailed structure of the rack and pinion structure of the flip mechanism 300 is the same as that of the flip mechanism 200 described with reference to fig. 3A and 3B, and includes an arc-shaped rack (not shown) and a decelerator (not shown), which will not be described again. A support base (not shown) of the flip mechanism 300 is provided on the rain cover main body 100 for supporting the rack and pinion structure. The driving structure of the folder mechanism 300 is connected with a rack and pinion structure to provide a driving force.

The

runners

304 and 305 are provided on the rain cover body 100, for example, as shown in fig. 2, the

runners

304 and 305 extend parallel to the horizontal axis of the rain cover; one end of the

support rods

302 and 303 is fixedly connected with the housing 301, and the other end can slide in the sliding

grooves

304 and 305. In the present embodiment, the number of the

support rods

302 and 303 and the

slide grooves

304 and 305 are two and correspond to one another. The present invention is not limited thereto, and the number of the supporting rods and the sliding grooves of the flip mechanism 300 may be adjusted to one or more than two as needed.

As shown in fig. 4A to 4C, the hanger 400 may include a pin 401, a base 402, two

support plates

403 and 404, and a driving mechanism.

The base 402 is removably mounted to an end of the tower 13. Specifically, the base 402 is formed with a coupling hole to be coupled with the flange 15. Second fasteners 17 (e.g., bolts, pins, rivets, anchors, etc.) pass through the attachment holes in the base 402 and the bolt holes in the flange 15 to secure the base 402 and the flange 15 together. Preferably, the connection hole of the base 402 through which the second fastening member 17 passes is formed as an oblong hole, such as a kidney-shaped hole, so that the installation position of the second fastening member 17 is adjusted to match the bolt holes of different flanges.

Two

support plates

403 and 404 may be formed on the base 402 in a vertical direction (or may be inclined at a predetermined angle in a horizontal direction), the two

support plates

403 and 404 are spaced apart from each other by a predetermined distance, and a through hole through which the pin 401 passes is formed in each of the

support plates

403 and 404.

Pin 401 can be inserted into through holes of

support plates

403 and 404 or withdrawn from through holes of

support plates

403 and 404. A threaded hole is formed in the pin 401 along the length direction of the pin 401.

A drive mechanism is provided on one of the two

support plates

403 and 404 for driving the pin 401 to be connected to the sling 10 or released from the sling 10. For example, in the present embodiment, the driving mechanism may be provided on the support plate 404. The drive mechanism may include a sleeve 405, an end plate 406, a threaded rod 407, and a hand crank 408. Specifically, one end of the sleeve 405 is connected to a side of the support plate 404 facing away from the support plate 405 and communicates with the through hole, and the other end extends in a direction away from the support plate 404, and the pin 401 can be inserted into the sleeve 405. An end plate 406 is provided on the other end of the sleeve 405, the end plate 406 being provided with a threaded hole. One end of the threaded rod 407 passes through a threaded hole in the end plate 406 to be connected with a threaded hole in the pin 401. A hand-cranking plate 408 is mounted on the other end of the threaded rod 407 which does not pass through the threaded hole in the end plate 406, and a handle 409 is further provided on the hand-cranking plate 408 for holding. The threaded rod 407 is rotated by rotating the hand-cranking plate 408, and the threaded rod 407 is in threaded fit with the threaded hole of the pin 401, so that the pin 401 moves along the threaded rod 407 and is inserted into the through holes of the

support plates

403 and 404 or is withdrawn from the through holes of the

support plates

403 and 404. In fig. 4A, it is shown that the pin 401 is inserted into the through holes of the

support plates

403 and 404 and positioned between the two

support plates

403 and 404, and at this time, a sling (e.g., a sling) 10 may be connected to a portion of the pin 401 positioned between the two

support plates

403 and 404. Specifically, the sling 10 (e.g., a sling having a looped lower portion) is laid so as to be positioned between the two support plates 403 and 104, and then the pin 401 is inserted into the through-holes of the two

support plates

403 and 404 by operating the handle plate 408 while passing through the sling 10. Fig. 4C shows pin 401 withdrawn from the through holes of

support plates

403 and 404, retracting into sleeve 405. At this time, the sling 10 can be withdrawn from the pin 401, and the sling 10 is disconnected from the pin 401. According to the exemplary embodiment of the present invention, when an emergency (e.g., rain) occurs, the hand crank 408 is manually controlled to rapidly withdraw the sling 10 from the pin 401, so that the field operation is convenient and efficient, and no additional mechanical tools, electrical equipment and power supply are required.

According to an exemplary embodiment of the present invention, the pin 401 may be controlled to be extended and retracted by a driving mechanism including a handwheel 408, thereby rapidly releasing the connection between the sling 10 and the pin 401. Similarly, the extension and contraction of the pin of the hanger 500 is controlled by the driving mechanism of the hanger 500, so that the connection between the hoist rope 11 and the pin of the hanger 500 can be rapidly released. However, the present invention is not limited thereto, and the electric screw structure may be used to push the pin 401 of the hanging seat 400 and the pin of the hanging seat 500 to extend or retract, or the hydraulic pin structure may be used to push the pin 401 of the hanging seat 400 and the pin of the hanging seat 500 to extend or retract, as long as the cable and the pin can be smoothly connected or disconnected.

A rain cover is used to cover the opening on the end face of the tower 13, and the rain cover may be formed in a shape corresponding to the shape of the end face of the tower 13, for example, a circular shape. As the diameter of the tower 13 is larger, for example, the diameter of the tower 13 is increased from 5 meters to 7 meters, the diameter of the rain cover is also increased, and in order to facilitate workshop manufacturing and land transportation of the rain cover, the rain cover may be preferably divided into a plurality of fan-shaped sheets (for example, at least two sheets) along the circumferential direction, and the plurality of fan-shaped sheets are formed by splicing. Specifically, a plurality of independent lamellar bodies can be formed respectively, so that the plurality of lamellar bodies are transported independently or stacked together to reduce the transportation volume during transportation, and the plurality of lamellar bodies are spliced together during use. Each segment may also be formed by welding a plurality of sub-segments. Reinforcing ribs 160 may be provided at the junctions of the plurality of sheets. For convenience of description, the following will describe taking as an example that the rain cover is divided into the first blade 110, the second blade 120, the third blade 130, and the fourth blade 140 in the circumferential direction. However, the present invention is not limited thereto, and the rain cover may be manufactured into two separate sheets, three separate sheets, or four or more separate sheets according to the size requirement of the transportation member and the requirement of the rain cover manufacturing plant during transportation of the land and sea transportation facilities, and the rain cover may be integrally formed as a single body if the requirement is allowed.

The rain cover can be provided with unloading lifting points and/or lifting points. The unloading lifting point is used for unloading the rain cover from the transportation equipment to the assembling position. The hoisting points comprise horizontal hoisting points and vertical hoisting points, the horizontal hoisting points are used for hoisting the rainproof cover to the end face of the horizontally placed tower drum 13 in a vertical state, and the vertical hoisting points are used for hoisting the rainproof cover to the end face of the vertically placed tower drum 13 in a horizontal state.

Referring to fig. 1, the rain cover may be divided (e.g., equally divided) circumferentially into a first lobe 110, a second lobe 120, a third lobe 130, and a fourth lobe 140. As shown in fig. 1, the central angle of each lobe is 90 degrees. Be provided with first hoisting point, second hoisting point and third hoisting point on every lamellar body. Specifically, the first sheet 110 is provided with a first hanging point 111, a second hanging point 112 and a third hanging point 113, the second sheet 120 is provided with a first hanging point 121, a second hanging point 122 and a third hanging point 123, the third sheet 130 is provided with a first hanging point 131, a second hanging point 132 and a third hanging point 133, and the fourth sheet 140 is provided with a first hanging point 141, a second hanging point 142 and a third hanging point 143.

The third hoisting point setting of every lamellar body is on the line of the mid point of the outer arc of connecting every lamellar body and the centre of a circle of rain-proof lid to be located the outer arc department that is close to every lamellar body. The distances from the third hanging points of the plurality of sheet bodies to the center of the rain-proof cover are the same. Taking the first sheet body 110 as an example, the third hanging point 113 is disposed on a connecting line connecting a midpoint of an outer arc of the first sheet body 110 and a center of the rain cover and is located near the outer arc of the first sheet body 110. Similarly, the location of the

third suspension point

123, 133, 143 is determined. Wherein the third suspension points 113, 123, 133, 143 are located on the same circumference.

The third suspension points of the plurality of blades together serve as a vertical suspension point when the tower 13 is in an upright position. As shown in FIG. 1, the third suspension point 113 of the first blade 110, the third suspension point 123 of the second blade 120, the third suspension point 133 of the third blade 130, and the third suspension point 143 of the fourth blade 140 serve as vertical suspension points when the tower 13 is in an upright position. The rain cover is lifted by connecting slings to the four third lifting points 113, 123, 133 and 143, respectively, and can be kept horizontal and transported to the end surface (specifically, the upper end surface) of the tower 13 placed vertically so as to be mounted on the end surface of the tower 13. Although fig. 1 shows that four third hanging points are formed on the rain cover, the present invention is not limited thereto, and other numbers of third hanging points may be formed on the rain cover as long as the rain cover can be horizontally hung on the upper end surface of the tower 13.

The first hanging point and the third hanging point of each sheet body are positioned on the same radius of the corresponding sheet body. Taking the first sheet 110 as an example, the first hanging point 111 and the third hanging point 113 are both located on a connection line connecting a midpoint of an outer arc of the first sheet 110 and a center of the rain cover, and the first hanging point 111 is closer to the center of the rain cover than the third hanging point 113. Similarly, the location of the

first suspension point

121, 131, 141 may be determined.

The first and third suspension points of any two of the plurality of sheets may be used as horizontal suspension points when the tower 13 is in a horizontal position. For example, the first and third suspension points 111, 113 of the first blade 110 and the first and third suspension points 141, 143 of the fourth blade 140 together serve as horizontal suspension points when the tower 13 is in a horizontal state. The rain cover can be kept vertical and transported to the end face of the tower 13 horizontally placed, so that the rain cover can be mounted on the end face of the tower 13 by connecting slings to the first and third hanging points 111 and 113 of the first blade 110 and the first and third hanging points 141 and 143 of the fourth blade 140, respectively, to lift the rain cover. Similarly, it is also possible to lift by means of the first and third lifting points 121, 123 of the second blade and the first and third lifting points 131, 133 of the third blade 130. That is, the rain cover can be installed on the end face of the tower tube 13 through two first hanging points and two third hanging points of two adjacent sheet bodies. In addition, other horizontal hoisting points capable of vertically hoisting the rain cover to the end face of the tower 13 can be selected as the horizontal hoisting points of the rain cover.

The first and second suspension points of each blade can serve as discharge suspension points for the respective blade. The center of gravity of each sheet body is positioned on a connecting line between the first hanging point and the second hanging point of the corresponding sheet body. Wherein the center of gravity of each sheet can be calculated according to three-dimensional modeling. Preferably, the centre of gravity of each blade is located at the midpoint of the line between the first and second suspension points of the respective blade. Taking the first panel 110 as an example, the first and second suspension points 111 and 112 of the first panel 110 may serve as discharge suspension points for the first panel 110, and the center of gravity of the first panel 110 is located at the midpoint of a line connecting the first and second suspension points 111 and 112, so that the first panel 110 may be horizontally discharged to a erection position (e.g., the ground). However, the present invention is not limited thereto, and the center of gravity of each sheet may not be disposed at the midpoint of the connection line between the first and second hanging points of the corresponding sheet, in which case the corresponding sheet may be positioned in a horizontal state by adjusting the length of the sling connected to the first and second hanging points. In addition, at least one other drop point capable of discharging the sheet from the transport apparatus to the assembly position can be selected as a discharge drop point.

According to an embodiment of the invention, arranging the third suspension points 113, 123, 133 and 143 close to the outer edges of the respective blade facilitates the mounting and dismounting of the suspension cables at the third suspension points 113, 123, 133 and 143.

As shown in fig. 1, the rain cover may further include manholes respectively provided near the four third hanging points 113, 123, 133 and 143 and manhole covers 114, 124, 134 and 144 openably provided at the manholes. As shown in fig. 1, manholes are provided near the outer edges of the

respective sheets

110, 120, 130 and 140, and the worker can climb along the tower wall to the manholes and install and remove the slings at the third lifting points 113, 123, 133 and 143 by opening the manhole covers 114, 124, 134 and 144.

According to the embodiment of the invention, the third lifting points 113, 123, 133 and 143 are selected as the lifting points of the rain cover when the tower 13 is in the vertical state, so that the workers can complete the installation and the disassembly of the slings at the third lifting points 113, 123, 133 and 143 at the manholes beside the third lifting points 113, 123, 133 and 143 without climbing onto the rain cover, and the risk that the workers climb onto the rain cover to install and disassemble the slings at the third lifting points 113, 123, 133 and 143 is avoided. Here, the manholes beside the third hanging points 113, 123, 133 and 143 do not have to be set to a size through which a person passes, as long as an operator can install and detach the slings at the manholes.

According to an embodiment of the present invention, as shown in fig. 2, the rain cover may further include a skylight at the center of the rain cover and a skylight cover 150 openably provided at the skylight. When the manhole covers 114, 124, 134 and 144 cannot be opened, the worker can mount and dismount the slings by opening the skylight cover 150 to climb onto the rain cover.

The use of the rain cover according to the present invention will be described with reference to fig. 1 to 6. For convenience of description, the following will describe taking as an example that the rain cover is divided into the first blade 110, the second blade 120, the third blade 130, and the fourth blade 140 in the circumferential direction. The first blade 110, the second blade 120, the third blade 130 and the fourth blade 140 are separate bodies. It should be understood that when the rain cover is divided into two pieces or more than four pieces along the circumferential direction, the operation of assembling the first piece 110, the second piece 120, the third piece 130, and the fourth piece 140 described below is also applicable to assembling the two pieces or more than four pieces together.

(1) Unloading and assembling of rain-proof cover

As shown in fig. 1, at the time of discharge, first panel 110, second panel 120, third panel 130, and fourth panel 140 are respectively discharged from the transport apparatus to a flat position (e.g., the ground) by the discharge means. Wherein first panel 110, second panel 120, third panel 130, and fourth panel 140 are placed together for ease of assembly. The unloading means may comprise a crane and a sling. Wherein the sling may be a sling. When each sheet is to be unloaded, the sling is connected at one end to the crane hook 5 and at the other end to the unloading sling point of the sheet. For example, when the first sheet 110 is unloaded, one ends of the

slings

1 and 2 are connected to the hook 5, and the other ends of the

slings

1 and 2 are connected to the first and second hanging points 111 and 112 of the first sheet 110, respectively. When the fourth blade 140 is unloaded, one ends of the

slings

3 and 4 are connected to the hook 5, and the other ends of the

slings

3 and 4 are connected to the first and second hanging points 141 and 142 of the fourth blade 140, respectively. Likewise, the unloading of the second panel 120 and the third panel 130 is completed.

When first sheet 110, second sheet 120, third sheet 130, and fourth sheet 140 are assembled, first sheet 110 and second sheet 120 may be assembled together, and third sheet 130 and fourth sheet 140 may be assembled together. And then the first lifting point 111 of the first sheet 110, the first lifting point 121 of the second sheet 120, the first lifting point 131 of the third sheet 130 and the first lifting point 141 of the fourth sheet 140 are lifted, and the relative positions of the first and second spliced

sheets

110 and 120 and the third and fourth spliced

sheets

130 and 140 are adjusted, so that the first and second spliced

sheets

110 and 120 and the third and fourth spliced

sheets

130 and 140 are spliced together. However, the present invention is not limited thereto, and the assembling sequence among the first sheet 110, the second sheet 120, the third sheet 130, and the fourth sheet 140 may be adjusted as needed. Optionally, a stiffener 160 may be provided at the splice of the plurality of sheets.

(2) Rain-proof lid is used for lieing in vertical state's a tower section of thick bamboo

When the tower 13 is in the vertical state, the upper end surface of the tower 13 is located in the horizontal direction. When the tower drum 13 needs to be lifted, the lifting base 400 is fastened to the flange 15 on the upper end face of the tower drum 13 through the second fastening piece 17; the hanger 500 is also fastened to the flange 15, the hanger 500 being 180 ° different from the hanger 400 in the circumferential direction of the flange 15.

The slings are respectively connected to the third hanging points 113, 123, 133 and 143 as shown in fig. 1, and then the rain cover is conveyed to the upper end surface of the tower 13 in a horizontal state, suspended above the flange 15, with the flip mechanism 200 of the rain cover aligned with the hanging seat 400, the flip mechanism 300 aligned with the hanging seat 500, and after the coupling holes of the coupling bars 14 are aligned with the bolt holes of the flange 15, the rain cover is fastened to the flange 15 of the upper end surface of the tower by the first fastening members 16. The slings at the third suspension points 113, 123, 133 and 143 are then removed by opening the manhole covers 114, 124, 134 and 144.

As shown in fig. 2, when tower 13 is hoisted without rain, flip

mechanisms

200 and 300 may be opened. The hook 5 of the crane is connected to a hanging beam 12 by a set of straps (e.g., straps 6, 7, 8, and 9), the hanging beam 12 being disposed in a horizontal direction. One end of the sling 10 is connected with one end of the hanging beam 12, and the other end of the sling 10 is connected with the pin 401; one end of the sling 11 is connected with the other end of the sling chain 12, and the other end of the sling 11 is connected with the pin shaft of the hanging seat 500, so that the tower 13 can be lifted. If sudden rain occurs before the tower 13 is lifted or the tower 13 is lifted to the butt-joint installation position, as shown in fig. 4C, the threaded rod 407 is driven to rotate by operating the hand-operated lever 408, so that the pin 401 is withdrawn from the through holes of the

support plates

403 and 404 and retracted into the sleeve 405, thereby rapidly detaching the sling 10. Likewise, the slings 11 at the hanging seat 500 are removed. Then, the cover 201 is driven to close by the driving unit of the flip mechanism 200, i.e., the cover 201 is placed in a position parallel to the flange 15. The cover 301 is driven to close by the driving unit of the flip mechanism 300, i.e., the cover 301 is placed in a position parallel to the flange 15. At this time, the rainproof requirement of the tower 13 at the storage position and the butt joint installation position can be satisfied.

As shown in fig. 5, when the tower 13 is hoisted in a rainy condition, the cover 201 is driven to close by the driving unit of the flip mechanism 200, and the cover 301 is driven by the driving unit of the flip mechanism 300. Then, the sling 10 passes through the hoisting hole 210 on the cover 201 and is connected to the sling 10 through the driving pin 401 of the driving mechanism of the hanging seat 400; similarly, the sling 11 is passed through the lifting hole 306 on the cover 301 and connected to the sling 11 by the driving mechanism of the lifting socket 500 driving the pin of the lifting socket 500. At this time, the tower 13 is lifted, thereby preventing rainwater from entering the tower 13.

(3) Rain-proof lid is used for lieing in horizontal state's a tower section of thick bamboo

When the tower 13 is stored in a horizontal state, the end face of the tower 13 is located in the vertical direction. When the tower 13 needs to be lifted, the hanging base 400 is fastened to the flange 15 on the end face of the tower 13 through the second fastening member 17. The hanger 500 is also fastened to the flange 15, the hanger 500 being 180 ° different from the hanger 400 in the circumferential direction of the flange 15.

As shown in fig. 1, slings are respectively installed at the first hanging point 111 and the third hanging point 113 of the first sheet body 110 and the first hanging point 141 and the third hanging point 143 of the fourth sheet body 140, and then, the rain cover is conveyed to the end surface of the tower 13 in a vertical state, hung at one side of the flange 15, such that the flip mechanism 200 of the rain cover is aligned with the hanging seat 400, the flip mechanism 300 is aligned with the hanging seat 500, and after the coupling holes on the coupling bar 14 are aligned with the bolt holes of the flange 15, the rain cover is fastened to the flange 15 on the upper end surface of the tower 13 by the first fastening members 16. Next, the slings at the first and third suspension points 111 and 113 of the first panel 110 and the first and third suspension points 141 and 143 of the fourth panel 140 are removed by opening the manhole covers 114 and 144.

As shown in fig. 6, when tower 13 is hoisted without rain, flip

mechanisms

200 and 300 may be opened. The hook 5 of the crane is connected to the upper part of the hanging beam 12 through a sling group. One end of the sling 10 is connected with one end of the hanging beam 12, and the other end of the sling 10 is connected with the pin 401; one end of the sling 11 is connected with the other end of the sling chain 12, and the other end of the sling 11 is connected with the pin shaft of the hanging seat 500, so that the tower 13 can be lifted. If the tower 13 is in a condition of sudden raining before the tower 13 is lifted or the tower 13 is lifted to the butt joint installation position, the threaded rod 407 can be driven to rotate by operating the hand-operated crank disk 408, so that the pin 401 is withdrawn from the through holes of the

support plates

403 and 404 and retracted into the sleeve 405, and the sling 10 can be rapidly disassembled. Likewise, the slings 11 at the hanging seat 500 are removed. The cover body 201 is driven to close by the driving unit of the flip mechanism 200, and the cover body 301 is driven to close by the driving unit of the flip mechanism 300, so that the rainproof requirement of the tower 13 at the storage position and the butt joint installation position can be met.

When the tower 13 is hoisted in the rainy condition, the cover 201 is driven to close by the driving unit of the flip mechanism 200, and the cover 301 is driven to close by the driving unit of the flip mechanism 300. Then, the sling 10 passes through the hoisting hole 210 on the cover 201 and is connected to the sling 10 through the driving pin 401 of the driving mechanism of the hanging seat 400; similarly, the suspension cable 11 is passed through the hoisting hole 306 of the cover 301, and the pin of the hanging seat 500 is driven by the driving mechanism of the hanging seat 500 to be connected to the suspension cable 11. At this time, tower 13 is lifted, thereby preventing rainwater from entering tower 13. Preferably, a cushion pad, such as felt, may be disposed along the circumference of the lifting holes 210 and 306 to avoid excessive force between the slings passing through the lifting holes 210 and 306 and the lifting holes 210 and 306 when the tower 13 is lifted from the horizontal state to the vertical state.

According to the rain cover for the tower drum, the rain cover can be suitable for rain prevention under different working conditions such as tower drum storage, tower drum butt joint installation and tower drum hoisting, can be suitable for the tower drum in a horizontal state and the tower drum in a vertical state, and achieves rain-proof sealing of electrical elements and the like in the tower drum. In addition, rain-proof lid main part is divided into a plurality of lamellar bodies that can pile up the dismantlement, can transport alone or pile together the transportation when the transportation, can assemble on the scene during the use to solved the rain-proof lid of marine wind generating set major diameter and be difficult to the transportation difficulty problem that rain-proof lid super width and bulky lead to when manufacturing in the workshop and land transportation.

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 rain cover for a tower, characterized in that a hanging seat (400, 500) is detachably mounted on the end face of the tower (13), the rain cover comprises:

the rainproof cover main body (100) is detachably mounted on the end face to cover the end face, and a notch part is formed in the position, corresponding to the hanging seat (400, 500), of the rainproof cover main body (100);

a cover (201, 301), the cover (201, 301) being disposed at the gap portion and capable of accommodating the hanging seat (400, 500), the cover (201, 301) being provided with a hoisting hole (210, 306) through which a sling passes, the cover (201, 301) being openable to expose the hanging seat (400, 500) or the cover (201, 301) being closable to cover the hanging seat (400, 500);

a driving unit for driving the cover (201, 301) to open or close.

2. Rain cover for a tower according to claim 1, characterised in that the cover body (201, 301) is rotatably connected to the rain cover body (100).

3. The rain cover for a tower according to claim 2, wherein the driving unit is of a rack and pinion structure, a hydraulic cylinder structure, a worm and gear structure, a pneumatic structure or a threaded screw structure.

4. The rain cover for a tower of claim 3, wherein the drive unit comprises:

the supporting seat (204), the supporting seat (204) is arranged on the rain cover main body (100);

the speed reducer (203), the speed reducer (203) is installed on the supporting seat (204);

an arc-shaped rack (202), wherein the arc-shaped rack (202) is meshed with a gear of the speed reducer (203); and

a drive structure driving the reducer (203) to move the gear of the reducer (203) along the arc-shaped rack (202).

5. The rain cover for a tower of claim 3, further comprising a sliding support assembly, the sliding support assembly comprising:

a chute (208, 209, 304, 305), the chute (208, 209, 304, 305) being disposed on the rain cover body (100); and

a support bar (206, 207, 302, 303), one end of the support bar (206, 207, 302, 303) is connected with the cover body (201, 301), and the other end can slide in the sliding groove (208, 209, 304, 305), so that the cover body (201, 301) is supported during the opening or closing process of the cover body (201, 301).

6. The rain cover for a tower of claim 1, characterized in that it is formed by a plurality of fan-shaped blades (110, 120, 130, 140) in a spliced or integrated manner.

7. The rainproof cover for the tower drum according to claim 1, wherein a flange (15) is arranged on the end face of the tower drum (13), a circular arc-shaped or circular ring-shaped connecting strip (14) corresponding to the flange (15) is arranged on the periphery of the rainproof cover, and a connecting hole for connecting with the flange (15) is formed in the connecting strip (14).

8. The rain cover for a tower of claim 1, wherein the rain cover is provided with unloading and/or lifting points.

9. The rain cover for a tower according to claim 8, wherein vertical lifting points (113, 123, 133, 143) of the lifting points for lifting the rain cover in a horizontal state to the end face of the vertically placed tower (13) are provided near the outer edge of the rain cover, the rain cover further comprising a manhole provided near the vertical lifting points (113, 123, 133, 143) and a manhole cover (114, 124, 134, 144) openably provided at the manhole.

10. Rain cover for a tower according to claim 1, characterised in that said lifting mounts (400, 500) are at least two, each lifting mount (400, 500) comprising:

a base (402), the base (402) being detachably mounted on the end face of the tower (13);

two support plates (403, 404), the two support plates (403, 404) being formed on the base (402) and spaced apart from each other, a through hole being formed on each support plate (403, 404);

a pin (401), the pin (401) being insertable into or withdrawable from the through hole; and

a drive mechanism provided on one of the two support plates (403, 404) for driving the pin (401) to be connected to the slings (10, 11) or to be released from the slings (10, 11).

11. The rain cover for a tower of claim 10, wherein the drive mechanism comprises:

a sleeve (405), one end of the sleeve (405) being connected to a side of the one of the two support plates (403, 404) facing away from the other support plate and communicating with the through hole, the other end extending in a direction away from the support plates (403, 404), the pin (401) being insertable into the sleeve (405);

an end plate (406), wherein the end plate (406) is arranged at the other end of the sleeve (405), and a threaded hole is arranged on the end plate (406); and

the one end of threaded rod (407) passes the screw hole with round pin axle (401) is connected, and the other end can drive according to the drive power of external input threaded rod (407) rotates.

12. The rain cover for a tower of claim 1, further comprising a skylight at a center of the rain cover and a skylight cover (150) openably disposed at the skylight.