KR101638293B1 - Wind generators nacelle floor folding device - Google Patents

Wind generators nacelle floor folding device Download PDF

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Publication number
KR101638293B1
KR101638293B1 KR1020150146140A KR20150146140A KR101638293B1 KR 101638293 B1 KR101638293 B1 KR 101638293B1 KR 1020150146140 A KR1020150146140 A KR 1020150146140A KR 20150146140 A KR20150146140 A KR 20150146140A KR 101638293 B1 KR101638293 B1 KR 101638293B1
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KR
South Korea
Prior art keywords
nacelle
nacelle floor
floor
frame member
magnet
Prior art date
Application number
KR1020150146140A
Other languages
Korean (ko)
Inventor
김성현
이진형
Original Assignee
두산중공업 주식회사
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Priority to KR1020150146140A priority Critical patent/KR101638293B1/en
Application granted granted Critical
Publication of KR101638293B1 publication Critical patent/KR101638293B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/80—Arrangement of components within nacelles or towers
    • F03D80/88—Arrangement of components within nacelles or towers of mechanical components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • Y02E10/722—

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

A nacelle floor folding device for a wind power generator is disclosed. A nacelle floor folding apparatus for a wind turbine according to an embodiment of the present invention includes a frame member spaced apart from a lower side of a nacelle floor and supporting the nacelle floor, A hinge portion provided in the width direction of the nacelle floor; A sliding portion which is mounted on the lower surface of the nacelle floor so as to face each other and which slides along the longitudinal direction of the frame member when the nacelle follower is lifted up from the hinge portion; And a position fixing part provided on the sliding part so that the nacelle floor is not unfolded after the nacelle floor is folded on the upper side, wherein the nacelle floor is fixed to the inside of the nacelle floor at both ends in the width direction, A support provided at a spaced apart position; And a link member having one end connected to the support portion and the other end extending toward the frame member.

Description

{Wind generators nacelle floor folding device}

The present invention can easily fold or unfold the nacelle floor located on the bottom surface of the nacelle to secure a work space for maintenance for inspection of a plurality of components provided in the nacelle of the wind turbine generator To a nacelle floor folding device for a wind power generator.

Generally, in a wind power generation system, a nacelle is positioned at the top of a tower erected on the ground, and various components are provided in the nacelle.

Referring to FIG. 1, the nacelle 2 includes a main component 3a having components such as a gearbox or a yaw drive in the right direction with respect to the left side where a blade (not shown) A generator 3b and a control cabinet 3c are provided on the right side of the main component 3a.

A converter 3d is provided on the right side of the generator 3b and a variable electric machine 3e is provided on the right side of the converter 3d and a nacelle floor 10a is provided between the generator 3b and the control cabinet 3c. And a nacelle floor 10a is disposed between the generator 3b and the converter 3d and also on the right side of the converter 3d and the electric generator 3e and the electric generator 3e.

The nacelle floor 10a is fixed to the upper surface of the frame member 100 via bolts B and is fixed to the upper surface of the frame member 100 in order to check the normal operation state of the main component 3a or the generator 3b, In order to move the nacelle floor 10 to the lower space of the nacelle floor 10, the nacelle floor 10a is moved to either the left or right side of the frame member 100 after releasing the fixed state of the bolt B for fixing the nacelle floor 10a And the work was carried out.

In this case, since the bolts B need to be unraveled and reassembled, the workability of the operator is remarkably reduced, and the internal space of the nacelle 2 is considerably narrowed, which causes the nacelle floor 10a to collapse when the nacelle floor 10a is raised .

Also, in case the operator has to evacuate urgently during work in the nacelle 2, the nacelle 2 is equipped with an emergency escape hatch (not shown). In order to approach the emergency escape hatch, (B) fastened to the bolt (10a), it is difficult for the operator to evacuate quickly in case of an emergency.

In addition, since the tool must be prepared for the worker to unlock the bolts B, it is difficult for the operator to quickly move to the emergency escape hatch in the emergency situation.

Korean Patent Publication No. 10-2015-0008749

Embodiments of the present invention provide a nacelle floor folding device for a wind turbine generator which can easily access an operator to a lower portion of a nacelle floor by changing the structure so that a nacelle floor provided in a wind turbine nacelle can be easily folded or unfolded I want to.

According to an aspect of the present invention, there is provided a nacelle floor comprising: a frame member spaced apart from a lower side of a nacelle floor and supporting the nacelle floor; A hinge portion provided in the width direction of the nacelle floor; A sliding portion which is mounted on the lower surface of the nacelle floor so as to face each other and which slides along the longitudinal direction of the frame member when the nacelle follower is lifted up from the hinge portion; And a position fixing part provided on the sliding part so that the nacelle floor is not unfolded after the nacelle floor is folded on the upper side, wherein the nacelle floor is fixed to the inside of the nacelle floor at both ends in the width direction, A support provided at a spaced apart position; And a link member having one end connected to the support portion and the other end extending toward the frame member.

The nacelle floor is characterized in that a plurality of nacelle floors are independently arranged along a longitudinal direction of the frame member, and each of the nacelle floors is extended by a first extending length and folded or unfolded, respectively.

A hinge part is located at a center with respect to a longitudinal direction of the nacelle floor and a handle is provided around the hinge part so that an operator can grasp the nacelle floor by hand to move the nacelle floor upward or downward.

The link member is formed of a multi-stage link, and has a damper built therein for damping a load applied in the axial direction of the link member.

Wherein the sliding portion includes: a roller that comes into rolling contact along the longitudinal direction of the frame member; And a roller housing formed with an insertion hole into which the roller is inserted and moved together with the roller while being separated from the bottom surface of the frame member according to a folding or unfolding state of the nacelle floor while the roller is accommodated.

The position fixing unit includes a magnet provided on a mating facing surface of the sliding portion. The magnet includes a first magnet made of a permanent magnet and a second magnet facing the first magnet.

And the second magnet is formed of an electromagnet.

And the switch is provided with a switch unit to selectively apply electricity to the second magnet to have the same polarity or different polarity as the first magnet.

Wherein the nacelle floor includes first to n-th unit nacelle floors provided along the longitudinal direction of the frame member, wherein the first to n-th unit nacelle floors are operated and operated on equipment components arranged below the frame member, And a plurality of frames are folded and then moved to one side of the frame member to provide a management space.

Embodiments of the present invention allow the operator to easily fold or unfold the nacelle floor in the frame member, shortening the work time of the operator and easily moving the nacelle floor without a separate tool for folding.

Embodiments of the present invention improve space utilization by minimizing the extra space for laying up folded nacelle floors.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing the state of components arranged inside a wind power generator nacelle; Fig.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a nacelle floor,
3 is a side view of a nacelle floor folding apparatus for a wind turbine according to an embodiment of the present invention.
4 to 5 are operational perspective views showing a state in which a nacelle floor for a wind power generator is folded according to an embodiment of the present invention.
FIG. 6 illustrates a magnet according to an embodiment of the present invention. FIG.
7 to 10 are views showing various folding states of a nacelle floor folding apparatus for a wind power generator according to an embodiment of the present invention.

A nacelle floor folding apparatus for a wind power generator according to an embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a side view of a nacelle floor folding apparatus for a wind turbine according to an embodiment of the present invention, and FIGS. 4 to 5 show a state in which a nacelle floor for a wind turbine is folded according to an embodiment of the present invention FIG.

3 to 5, the nacelle floor folding apparatus 1 for a wind turbine according to the present embodiment is spaced apart from the lower side of a nacelle floor 10 and faces the nacelle floor 10 A hinge part 200 provided in a width direction of the nacelle floor 10 and a lower surface of the nacelle floor 10 mounted on the lower surface of the nacelle floor 10 so as to face each other, A sliding part 300 sliding along the longitudinal direction of the frame member 100 when the nacelle follower 10 is lifted up from the center of the nacelle floor 200, And a position fixing part 400 provided on the sliding part 300 to prevent the nacelle floor 10 from unfolding.

The frame member 100 is a steel structure having an I-shaped cross-sectional shape, and the nacelle floor 10 is positioned in the longitudinal direction of the top surface, and the sliding portion 300 is positioned to slide along the inner upper surface of the I-shaped section.

The nacelle floor 10 is folded when the operator lifts the hinge portion 200 upward with the hand holding the grip 20 as the center of rotation, and unfolded when the operator pulls the handle 20 backward from the folded position.

A plurality of nacelle floors 10 are independently arranged along the longitudinal direction of the frame member 100 and each of the nacelle floors 10 is extended or extended by a first extension length L and folded or unfolded, Extends to a specific length in consideration of easy folding of the nacelle floor 10. [

A hinge part 200 is positioned at the center with respect to the longitudinal direction of the nacelle floor 10 and an operator can grasp the hinge part 20 by hand to move the nacelle floor 10 upward or downward A handle 20 is provided. The nacelle floor 10 is divided into n sections on the left and right sides of the hinge section 200 and folded or unfolded on the basis of the hinge section 200.

The hinge portion 200 is selectively used as a hinge or a shaft, and is not limited to a specific configuration, and may be variously modified.

The handle 20 is formed at the center of the nacelle floor 10 or at a position where the nacelle floor 10 can be easily lifted by an operator. For example, the handle 20 may be positioned at a position spaced apart from the center of the nacelle floor 10 As shown in Fig.

The nacelle floor 10 has a supporting part 500 provided at a position spaced apart from the nacelle floor 10 at both ends thereof with respect to the lower surface of the nacelle floor 10 and one end connected to the supporting part 500, A link member 600 extending toward the base 100 is provided.

The supporting part 500 is positioned on the lower surface of the nacelle floor 10 so as to face each other and a U-shaped groove is formed to insert the link member 600. For reference, in the present embodiment, four nacelle floors 10 are provided in the vicinity of the bottom of the bottom surface.

4 to 6, the link member 600 is formed of a multi-stage link, and a damper 610 for damping a load applied in the axial direction of the link member 600 is incorporated. For example, the present embodiment is limited to a two-stage link, but it may be configured to include three or more links.

The link member 600 includes a first link 602 rotatably coupled to the support portion 500 and a second link 602 having one end rotatably coupled to the lower end of the first link 602, And a second link 604 to which the other end is coupled.

The first link 602 is provided with a bar-shaped insertion shaft extending in a length similar to the width of the support part 500 so that the first link 602 is inserted into the support part 500.

Since the second link 604 is coupled to the connection bar 302 in a plurality of ring shapes and spaced apart from each other, the second link 604 is moved in the process of moving the nacelle floor 10 to the folding or unfolding position The stable coupled state is maintained regardless of the rotation.

Since the link member 600 is overlapped with each other when the operator folds the nacelle floor 10, the load generated during folding is relatively reduced. Also, since the damper 610 is embedded, the shock generated in the axial direction of the link member 600 can be minimized when unfolded.

The sliding part 300 includes a roller 310 inserted into a connecting bar 302 provided at a lower end of the link member 600 and rolling in a longitudinal direction of the frame member 100, The roller 310 is inserted and inserted into the frame member 100 in a state of being separated from the bottom surface of the frame member 100 according to the folding or unfolding state of the nacelle floor 10, And a roller housing 320 moved together with the roller 310.

Since the roller housing 320 is spaced apart from the bottom surface of the frame member 100, the generation of noise due to friction is minimized even when the nacelle floor 10 is folded, It can be operated with minimal force when folding.

The roller housing 320 is formed in a rectangular parallelepiped shape and has an insertion hole 322 in which the roller 310 is inserted is opened at the center when viewed from the upper surface, And is rotatably positioned in a state of being inserted into the shaft 302 in an axial direction.

The roller 310 may be made of rubber or plastic so that noise generated by rolling contact with the bottom surface of the nacelle floor 10 is minimized.

The connection bar 302 is further inserted with a bearing to enable stable rotation of the roller 310, thereby enabling rolling contact of the roller 310 due to folding or unfolding of the nacelle floor 10.

The position fixing unit 400 includes a magnet disposed in the roller housing 320 which is a mating mating surface of the sliding unit 300. The magnet includes a first magnet 410 made of a permanent magnet, And a second magnet 420 facing the magnet 410.

The first magnet 410 and the second magnet 420 are both of the same size and positioned on the mating surfaces of the roller housings 320 facing each other when the nacelle floor 10 is folded.

The first and second magnets 410 and 420 are inserted into the insertion groove 330 formed in the mating surface of the roller housing 320 and the holder 340 Is installed. Since the insertion groove 330 has a size corresponding to that of the first and second magnets 410 and 420, when the first and second magnets 410 and 420 are inserted into the insertion groove 330, do.

When the holder 340 is bolted to the roller housing 320 from the outside of the first and second magnets 410 and 420 and the long nacelle floor 10 is folded or unfolded, 410 and 420 do not occur.

For example, when the first magnet 410 is N-pole, the second magnet 420 has an S-pole polarity, so that attraction between the first and second magnets 410 and 420 is maintained.

The second magnet 420 is made of an electromagnet so that electricity is selectively applied to the second magnet 420 so that the second magnet 420 has the same polarity or different polarity as the first magnet 410 A switch unit 700 is provided.

The switch unit 700 is provided with a button that can be pushed by an operator so that the second magnet 420 is selectively energized to have a polarity different from that of the first magnet 410, The polarity of the first magnet 410 and the second magnet 420 are shifted from the S pole to the N pole so that the first magnet 410 and the second magnet 420, which are in close contact with the first magnet 410, As a result, the nacelle floor 10 is easily unfolded.

Therefore, after the operator folds the nacelle floor 10, the operator can easily switch the nacelle floor 10 to the unfolded state through the operation of the switch unit 700 for unfolding.

Referring to FIG. 7, the nacelle floor 10 according to the present embodiment includes first to n-th unit nacelle floors 10a to 10n provided along the longitudinal direction of the frame member 100, The first to n-th unit nacelle floors 10a to 10n are formed by folding a plurality of unit nacelle floors 10a to 10n in order to provide an operation and management space for facilities disposed below the frame member 100, .

Since the first to n-th unit nacelle floors 10a to 10n are all unfolded before the electric connection or inspection of the equipment is normally performed, the operator does not fold to the upper side of the frame member 100, And is positioned in a neighboring state.

Referring to FIG. 8, when a first unit nacelle floor 10a is folded for inspection of equipment, a worker's work space hammered in the form of a square box is easily formed, and the folded first unit nacelle The floor 10a is moved to the left position along the arrow direction.

Referring to FIG. 9, when a worker needs a wider working space during operation, if the first and second unit nacelle floors 10a and 10b are all folded and moved to the left side, The worker can easily carry out the work in a wider space.

10, the nacelle floor 10 can be easily folded even when the cable drawn out from the equipment is located at any position. For example, the nacelle floor 10 may be folded at a central position of the frame member 100 It is possible to easily carry out the maintenance work or the inspection work by folding the unit nacelle floor located at the corresponding position.

As a result, the worker can easily carry out the inspection work or the maintenance work in which the work space is easily secured, thereby improving the work speed and moving to the emergency escape hatch in an emergency situation quickly.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention as set forth in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

10: Nacelle Floor
20: Handle
100: frame member
200: Hinge section
300: sliding portion
310: Rollers
320: roller housing
330: insertion groove
340: holder
400:
410, 420: 1st and 2nd magnets
500: Support
600: link member
700:

Claims (10)

A frame member spaced apart from the lower side of the Nacelle floor and supporting the nacelle floor;
A hinge portion provided in the width direction of the nacelle floor;
A sliding portion which is mounted on the lower surface of the nacelle floor so as to face each other and which slides along the longitudinal direction of the frame member when the nacelle follower is lifted up from the hinge portion; And
And a position fixing part provided on the sliding part so that the nacelle floor is not unfolded after the nacelle floor is folded upward,
A supporting portion provided at a position spaced from the both ends of the nacelle floor in the width direction on the inner side of the nacelle floor;
And a link member having one end connected to the support portion and the other end extending toward the frame member. The method according to claim 1,
In the nacelle floor,
Wherein a plurality of the nacelle floor folding apparatuses are independently arranged along the longitudinal direction of the frame member, and each of the nacelle floor folding apparatuses is folded or unfolded by a first extension length. The method according to claim 1,
Wherein a hinge portion is located at a center with respect to a longitudinal direction of the nacelle floor and a handle is provided around the hinge portion so that an operator can grip the nacelle floor by hand to move the nacelle floor upward or downward. Nacelle floor folding device. delete The method according to claim 1,
The link member
And a damper for damping a load applied in the axial direction of the link member is built in the nacelle floor folding apparatus for a wind power generator. The method according to claim 1,
The sliding portion includes:
A roller that comes into rolling contact along the longitudinal direction of the frame member;
And a roller housing having an insertion hole into which the roller is inserted so as to be moved together with the roller in a state of being separated from the bottom surface of the frame member according to a folding or unfolding state of the nacelle floor in a state in which the roller is accommodated, Nacelle floor folding device for generator. The method according to claim 1,
Wherein the position fixing portion comprises:
Wherein a magnet provided on each of opposing surfaces of the sliding portion is used, and the magnet includes a first magnet made of a permanent magnet and a second magnet facing the first magnet. 8. The method of claim 7,
And the second magnet is made of an electromagnet. 8. The method according to any one of claims 3 and 7,
Wherein the knob is provided with a switch unit to selectively apply electricity to the second magnet to have the same polarity or different polarity as the first magnet. The method according to claim 1,
In the nacelle floor,
And first to n-th unit nacelle floors provided along the longitudinal direction of the frame member,
Wherein the first to n < th >
Wherein the frame member is folded and moved to one side of the frame member to provide an operation and management space for the equipment disposed below the frame member.

KR1020150146140A 2015-10-20 2015-10-20 Wind generators nacelle floor folding device KR101638293B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110985312A (en) * 2019-12-19 2020-04-10 山东中车风电有限公司 Object hanging opening structure of wind generating set cabin and application
EP3800347A1 (en) * 2019-10-01 2021-04-07 Siemens Gamesa Renewable Energy A/S Nacelle housing with service hatch
US12031525B2 (en) 2019-10-01 2024-07-09 Siemens Gamesa Renewable Energy A/S Nacelle housing with service hatch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200396496Y1 (en) * 2005-06-27 2005-09-23 인우시스템 주식회사 Sliding device of folding door
KR100682632B1 (en) * 2006-10-18 2007-02-16 (주)미리텍 Sliding door having a hinged door structure
JP2009513846A (en) * 2005-07-08 2009-04-02 セタ エレクトロメカニーク ゲーエムベーハー Guide device for sliding doors or sliding doors.
KR20130132563A (en) * 2010-12-27 2013-12-04 아레파 빈트 게엠베하 Hatch cover for wind driven power plant
KR20150008749A (en) 2013-07-15 2015-01-23 현대중공업 주식회사 Maintenance Structure for Wind-Electric Power Generation System

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200396496Y1 (en) * 2005-06-27 2005-09-23 인우시스템 주식회사 Sliding device of folding door
JP2009513846A (en) * 2005-07-08 2009-04-02 セタ エレクトロメカニーク ゲーエムベーハー Guide device for sliding doors or sliding doors.
KR100682632B1 (en) * 2006-10-18 2007-02-16 (주)미리텍 Sliding door having a hinged door structure
KR20130132563A (en) * 2010-12-27 2013-12-04 아레파 빈트 게엠베하 Hatch cover for wind driven power plant
KR20150008749A (en) 2013-07-15 2015-01-23 현대중공업 주식회사 Maintenance Structure for Wind-Electric Power Generation System

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3800347A1 (en) * 2019-10-01 2021-04-07 Siemens Gamesa Renewable Energy A/S Nacelle housing with service hatch
WO2021063646A1 (en) * 2019-10-01 2021-04-08 Siemens Gamesa Renewable Energy A/S Nacelle housing with service hatch
US12031525B2 (en) 2019-10-01 2024-07-09 Siemens Gamesa Renewable Energy A/S Nacelle housing with service hatch
CN110985312A (en) * 2019-12-19 2020-04-10 山东中车风电有限公司 Object hanging opening structure of wind generating set cabin and application

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