KR101346178B1 - Rotor rotating apparatus for wind turbine - Google Patents

Abstract

Disclosed is a rotor rotation device for wind turbines. The rotor rotation device for wind turbines according to an embodiment of the present invention includes a rotor lock disc, which a rotation shaft connected to the hub of a rotor is penetrated into and rotates along with the hub: and a hydraulic disc main drive unit, which is connected to the rotor rock disc and is extended or contracted by the supply or blowout of an operating fluid for providing rotating drive force rotating the rotor rock disc.

Description

ROTOR ROTATING APPARATUS FOR WIND TURBINE}

The present invention relates to a rotor rotating apparatus for a wind turbine, and more particularly, to a rotor rotating apparatus for a wind generator capable of rotating a hub of the rotor.

Generally, typical types of power generation for generating electricity include thermal power generation using fossil fuel as an energy source and nuclear power generation using nuclear power.

However, thermal power generation has a problem of causing pollution due to utilization of the energy generated by the combustion of fossil fuel and a huge construction cost.

In addition, nuclear power generation is advantageous for producing a large amount of electricity, but it requires huge facility costs to block the radiation leakage and the strong reaction of local residents is expected due to the risk of radiation leakage, and it is not easy to dispose of waste, and it is a minor accident. However, there are various problems, such as always presenting a risk that can cause serious environmental damage.

Therefore, researches are actively conducted to utilize natural energy such as wind power, tidal power, hydroelectric power, and solar energy as an energy source as a permanent energy source free from exhaustion problems due to firepower or nuclear power generation.

In particular, wind power is emerging as an alternative in terms of the use of natural energy among power generation using natural energy. Wind power generation is simple in structure and installation, easy to operate and manage, and unmanned and automated. As a result, the introduction has increased dramatically in recent years.

On the other hand, in the past, wind power structures were mainly made on land, but due to various problems such as environmental damage caused by noise and vibration, increased power generation capacity, and aesthetics and limitations of place, wind farms have recently become intensive. The trend is to build them in groups.

Wind power generator is a device for producing electrical energy from the rotational energy by the wind, a rotor having a hub to which a plurality of blades (blade) rotated by the wind, and a nacelle connected to the rotor ( and a nacelle cover for supporting and protecting the nacelle, and a tower for supporting the blades, the rotor, the nacelle, and the nacelle cover.

On the other hand, the operation of installing the blade in the hub, the blade gripping using a blade gripping device, using a crane or the like transfers the blade gripping device and the blade adjacent to the hub.

For example, in a case where a plurality of blades are sequentially installed in the hub by transferring the blades adjacent to the hub, one hub must be installed in the hub, and the hub must be rotated so that the second blade can be installed in the hub. .

Thus, in the conventional installation of a plurality of blades in order to rotate the hub in the direction in which the blade is inserted, the rotation of the rotation shaft transmitted from the gearbox and the gearbox connected to the rotating shaft that rotates in conjunction with the hub After connecting the inching gear on the high-speed rotary shaft connecting the generator driven by, the inching gear was forcibly rotated to rotate the hub in reverse. Here, the inching gear is a device for forcibly rotating the rotary shaft, and is a gear mounted on the rotary shaft to be rotated by a separately provided drive motor.

In other words, by rotating the high-speed rotary shaft connecting the gearbox and the generator forcibly rotated the hub. However, when the high speed rotation shaft is forcibly rotated, that is, when the driven gear connected to the driven shaft inside the gearbox is rotated to rotate the main gear connected to the main shaft, the driven gear may be damaged.

[Document 1] Republic of Korea Patent No. 10-0988920 (Apex Co., 2010.10.20.)

Therefore, the technical problem to be solved by the present invention is to provide a rotor rotating device for a wind power generator that can rotate the hub of the rotor precisely and securely in installing the blade in the hub.

According to an aspect of the present invention, a rotor shaft connected to the hub of the rotor is inserted through the rotor lock disk to rotate in conjunction with the hub; And a hydraulic disk main drive unit connected to the rotor lock disk and providing a rotational driving force to rotate the rotor lock disk while being extended or contracted by supplying and ejecting a working fluid. have.

The hydraulic disc main drive unit, the rotary bar is inserted into any one of the plurality of hole portions formed to be spaced apart from each other in the circumferential direction of the rotor lock disk; A driving cylinder connected to the rotation bar to provide an urging force to the rotation bar as it is extended or contracted; And a clamp provided at the end of the cylinder rod of the driving cylinder and inserted into the rotation bar.

The rotating bar may include a support groove so that the clamp can be stably supported.

The hydraulic disc main driver may further include a buffer pad surrounding the surface of the cylinder rod to prevent damage due to friction with the surface of the rotor lock disc.

The rotor lock disk may include: a first disk through which the rotary shaft is inserted; And

And a second disk inserted into an outer circumferential surface of the first disk and rotating in cooperation with the first disk, wherein the plurality of holes may be spaced apart from each other in the circumferential direction of the second disk.

The rotor lock disk is formed to be stepped so that the thickness of the first disk is thicker than the thickness of the second disk, is detachably provided on the upper portion of the nacelle cover for the wind turbine, and is connected to the outer peripheral surface of the first disk It may further include an auxiliary driving unit for rotating the first disk.

The auxiliary driving unit, the body portion detachably provided on the upper portion of the nacelle cover; A drive gear provided in the body part and providing a rotational driving force; And a driving force transmission unit which passes through an upper portion of the nacelle cover and is wound around the driving gear and the outer circumferential surface of the first disk, and transmits a rotation driving force of the driving gear.

The auxiliary driving part may further include a body part transferring part connected to the body part and transferring the body part in the longitudinal direction of the nacelle cover.

The body portion transfer unit, a guide rail provided along the longitudinal direction of the nacelle cover on the upper portion of the nacelle cover, the body rail is slidably connected; A rack gear provided in an upper portion of the nacelle cover along a longitudinal direction of the nacelle cover; And a driving body provided on a bottom surface of the body part and engaged with the rack gear.

It may further include a locking pin inserted into at least one of the plurality of holes to fix the rotor lock disk.

Embodiments of the present invention, by providing a hydraulic disk main drive connected to the rotor lock disk to rotate the rotor lock disk, it is possible to rotate the hub precisely and securely in installing the blade in the hub.

1 is a front view of a wind turbine, showing a state in which one blade is transferred.
Figure 2 is a perspective view showing a rotor rotation apparatus for a wind turbine according to an embodiment of the present invention.
3 is an enlarged view of a portion A of FIG. 2, and is a perspective view illustrating a coupling state of a rotation bar and a driving cylinder according to an exemplary embodiment of the present invention.
Figure 4 is a front view showing a rotor rotation apparatus for a wind turbine according to an embodiment of the present invention.
Figure 5 is a side view showing a rotor rotor for a wind power generator according to an embodiment of the present invention.
6 and 7 are front views showing the state before and after the operation of the rotor rotation apparatus for a wind turbine according to an embodiment of the present invention.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1 is a front view of a wind turbine, showing a state in which one blade is transported, Figure 2 is a perspective view showing a rotor rotation apparatus for a wind turbine according to an embodiment of the present invention, Figure 3 is A of FIG. As a partially enlarged view, a perspective view showing a coupling state of a rotary bar and a driving cylinder according to an embodiment of the present invention, Figure 4 is a front view showing a rotor rotor for a wind turbine generator according to an embodiment of the present invention, Figure 5 is Side view showing a rotor rotating device for a wind turbine according to an embodiment of the present invention.

1 and 2, the wind generator is connected to a nacelle (not shown) and rotates according to the rotation of the blades 110 and the blades 110, which are rotated by the wind blades 110. Rotor 120 having a hub 121 is connected to) and a tower 140 supporting the nacelle, the rotor 120 and the blade 110.

Blade 110 is a kind of wing that is rotated by the wind to generate a rotational movement. The blade 110 disposed radially with respect to the rotor 120 has a streamlined wing shape to be easily rotated by the wind.

In addition, the wind power generator according to the present embodiment includes three blades 110 so as to pursue stability while maximizing the characteristics of the wind, but is not limited thereto. The scope of the present invention is limited by the number of blades 110. Is not limited.

The hub 121 of the rotor 120 is a place where the plurality of blades 110 are connected.

The hub 121 may have a substantially circular shape when viewed from the front, and may have a dome shape when viewed from the side.

And, one side of the hub 121 is connected to a nacelle (nacelle, not shown) that receives the rotational movement of the blade 110 to produce electrical energy, the nacelle is protected by a nacelle cover (130, nacelle cover).

The nacelle receives the rotational motion of the blade 110 to produce electrical energy, such as mechanical parts that play an important role in driving a wind power generator, such as a rotating shaft 160 connected to a hub, a penetrating rotary shaft 160. The bearing housing 170 for supporting the shaft, the gear box 180 is connected to the rotating shaft 160 through the bearing housing 170, the gear box 180 is provided on one side of the gear box 180 to be transmitted from the gear box 180. The generator (not shown) driven by the rotational force of the rotating shaft 160, and a structure in which the bearing housing 170, the frame unit 190 supporting the gear box 180, and the like are combined are collectively referred to.

As such, the nacelle cover 130 is coupled to the outside of the nacelle serves to protect the nacelle.

Since the nacelle cover 130 is exposed to the outside air as it is constantly exposed to snow, rain or sunlight, a certain degree of rigidity should be ensured. Therefore, the nacelle cover 130 is made of a non-metal or metal composite material with excellent durability.

On the other hand, the tower 140 is an axis extending vertically, and supports the axial load on the structure, such as a plurality of blades 110, hub 121, nacelle and nacelle cover 130.

The tower 140 may be divided into a lower tower at a lower portion and an upper tower at an upper portion by position.

The tower 140 is a hollow pipe-type structure, and a cable or the like is passed through the inner empty space of the tower 140. The cable may be various kinds of cables including power cables for power transmission, cables for communication, and the like.

On the other hand, in the operation of installing a plurality of blades in the hub, after gripping the blade 110 with the gripping unit 200, one blade 110 is transferred adjacent to the hub 121. In this case, the gripping unit 300 includes a root gripper 310 for gripping the blade root portion, and a tip gripper 350 for gripping the blade tip portion.

Then, after installing one blade 110 in the blade connecting portion 123 of the hub 121, the hub 121 is rotated to maintain the blade connecting portion 123 of the hub 121 in a horizontal state.

However, in rotating the hub 121, after connecting the inching gear (not shown) on the rotation shaft 160 for connecting the gearbox 180 and the generator as in the prior art, the inching gear is forcibly rotated On the contrary, when the hub 121 is rotated, the main gear (not shown) and the driven gear (not shown) provided in the gear box 180 may be damaged. Here, the inching gear is a device for forcibly rotating the rotary shaft 160, and is a gear mounted on the rotary shaft 160 to be rotated by a separately provided drive motor (not shown).

Accordingly, there is a need for a rotor generator for a wind generator capable of precisely and safely rotating the hub 121 without damaging the main gear and the driven gear in the gearbox 180.

2 to 5, the rotor rotation apparatus for a wind power generator according to an embodiment of the present invention, the rotary shaft 160 connected to the hub 121 of the rotor 120 is inserted through the hub 121 and A hydraulic disk main connected to the rotor lock disk 200 rotating in conjunction with the rotor lock disk 200 and providing a rotational driving force to rotate the rotor lock disk 200 while being stretched or contracted by supply and withdrawal of a working fluid. The driving unit 230, the auxiliary drive unit 250 for detachably provided at the upper portion of the nacelle cover 130, and for rotating the rotor lock disk 200, and the locking pin 270 for fixing the rotor lock disk 200 Include.

The rotor rotating apparatus for a wind power generator according to the present embodiment rotates the rotor lock disk 200 and the hub 121 by using the hydraulic disk main driver 230 and the auxiliary driver 250.

The rotating shaft 160 connected to the hub 121 is connected to the bearing housing 170, the gear box 180, etc. in the nacelle cover 130 in order to rotate.

At this time, the rotor lock disk 200 is provided in the nacelle cover 130, it is disposed on the front portion of the bearing housing 170 for supporting the rotary shaft 160.

The rotor lock disk 200 is rotated in conjunction with the hub 121 and the rotating shaft 160, the hub 121 and the rotating shaft when the wind turbine is being repaired or when the blade 110 is installed and replaced in the hub 121. It serves to fix the 160.

As described above, in order to install the blade 110 in the hub 121, the hub 121 needs to be rotated. The rotor rotating device for a wind turbine according to the present embodiment rotates the rotor lock disk 200 to the hub ( Rotate 121).

The rotor lock disk 200 includes a first disk 210 through which the rotary shaft 160 is inserted and a second disk inserted into an outer circumferential surface of the first disk 210 to rotate in conjunction with the first disk 210. 211.

That is, the rotor lock disk 200 is configured by coupling the second disk 211 to the outer circumferential surface of the first disk 210 through which the rotation shaft 160 passes.

The first disk 210 is formed to be thicker than the thickness of the second disk 211 so that the first disk 210 protrudes from the surface of the second disk 211.

Therefore, the first disk 210 may be rotated using the auxiliary driver 250 to be described later, thereby rotating the entire rotor lock disk 200.

In addition, the surface of the second disk 211 is provided with a plurality of hole portions 215 spaced apart from each other in the circumferential direction.

The hydraulic disk main drive unit 230 serves to rotate the rotor lock disk 200.

In particular, the hydraulic disk main driver 230 is connected to the hole 215 of the second disk 211 to rotate or rotate the second disk 211 while rotating or rotating the entire rotor lock disk 200.

The hydraulic disc main drive unit 230 is connected to the rotary bar 231 and the rotary bar 231 which are inserted into any one of the plurality of hole parts 215 formed to be spaced apart from each other in the circumferential direction of the rotor lock disc 200. The driving cylinder 233 which provides the pressing force to the rotating bar 231 as it is extended or contracted, and the clamp 235 which is provided at the tip of the cylinder rod 234 of the driving cylinder 233, and is supported by the rotation bar 231. And a buffer pad 237 surrounding the surface of the cylinder rod 234 to prevent damage due to friction with the surface of the rotor lock disk 200.

The rotating bar 231 is formed of a pin member inserted into any one of the plurality of hole parts 215 provided in the second disk 211 of the rotor lock disk 200.

When the hub 121 and the rotor lock disk 200 are to be rotated, the rotating bar 231 is inserted into the hole 215 formed in the second disk 211, and the cylinder rod 234 of the driving cylinder 233 is inserted. Rotate the second disk 211 by a distance at which e) is stretched or retracted.

Meanwhile, when the hub 121 and the rotor lock disk 200 are to be fixed, the rotation bar 231 is released from the hole 215 formed in the second disk 211, and then the locking pin 270 to be described later. Is inserted into any one of the plurality of hole parts 215 to fix the hub 121 and the rotor lock disk 200.

The driving cylinder 233 serves to provide a driving force for rotating the rotor lock disk 200, especially the second disk 211. The driving cylinder 233 is pivotally hinged to the front end of the frame 190.

As shown in FIG. 1, the blade connecting portion 123 into which the blade 110 is inserted is located at 90 degrees P1, 210 degrees P2, and 330 degrees P3 clockwise with respect to the tower 140. do.

Therefore, in the present embodiment, the blade connecting portion 123 at 210 degrees P2 is rotated 60 degrees clockwise, and the blade connecting portion 123 at 330 degrees P3 is rotated 60 degrees counterclockwise to a horizontal state. Rotor lock disk 200 is rotated 60 degrees clockwise or counterclockwise so as to be positioned at.

Thus, the length of the cylinder rod 234 should be designed to have a length such that the second disk 211 can be rotated 60 degrees clockwise or counterclockwise.

In addition, the clamp 235 serves to couple the cylinder rod 234 and the rotation bar 231.

As shown in Figure 3, the clamp 235 is coupled to the front end of the cylinder rod 234, is formed in the shape of tongs is configured to insert the support the rotating bar 231.

In addition, the support bar 232 is formed in the rotation bar 231 along the circumferential direction so that the clamp 235 can be stably supported, and the clamp 235 is inserted into the support groove 232 to install the clamp 235. The coupling strength of the rotating bar 231 can be increased.

 In addition, referring to FIG. 3, the buffer pad 237 is the rotor lock disk 200 when the cylinder rod 234 extends or contracts so that the rotor lock disk 200, in particular, the second disk 211 rotates. The surface of the cylinder rod 234 is in contact with and serves to prevent the rotor lock disk 200 is damaged.

The buffer pad 237 may be made of a flexible soft elastic material such as urethane and rubber, and is configured to surround the cylinder rod 234. The shock absorbing pad 237 is variable in length depending on the elongation or contraction of the cylinder rod 234 so as to surround the cylinder rod 234 at all times.

On the other hand, the rotor rotation apparatus for a wind power generator according to the present embodiment, the auxiliary drive unit 250 for rotating the rotor lock disk 200 in addition to the hydraulic disk main drive unit 230 is further provided.

The auxiliary driving unit 250 is provided to be detachably attached to the upper portion of the nacelle cover 130 and serves to rotate the first disk 210. That is, the auxiliary driving unit 250 serves to rotate the rotor lock disk 200 as a whole by rotating the first disk 210 protruding from the surface of the second disk 211.

The auxiliary driving part 250 includes a body part 251 detachably provided on an upper portion of the nacelle cover 130, a drive gear 252 provided on the body part 251 to provide rotational driving force, and a nacelle cover 130. Drive force transmission unit 253 and wound around the outer peripheral surface of the drive gear 252 and the first disk 210 to transmit the rotational driving force of the drive gear through the upper portion of the) and the body portion 251 is connected to the body portion ( 251 includes a body portion transfer portion 255 for transferring in the longitudinal direction of the nacelle cover 130.

Body portion 251 is detachably coupled to the upper portion of the nacelle cover 130 serves to support the drive gear 252.

And, the body portion 251 is conveyed in the longitudinal direction of the nacelle cover 130 by the body portion transfer unit 255 to be described later, in addition to rotating the first disk 210 hoist function to transfer the structure as needed Can be performed.

The drive gear 252 is connected to the front end side of the body portion 251 and serves to provide a driving force for rotating the first disk 210.

2 and 4, the drive gear 252 is shown as a pair of gears, the scope of the present invention is not affected by the coupling form of the drive gear 252.

In addition, the driving force of the driving gear 252 is transmitted to the first disk 210 by the driving force transmission unit 253.

The driving force transmission part 253 is inserted into the through hole part 131 provided in the upper portion of the nacelle cover 130 and is wound around the outer circumferential surfaces of the drive gear 252 and the first disk 210 in the rotational direction of the drive gear 252. While rotating, the driving force of the driving gear 252 is transmitted to the first disk 210.

2 and 4, gear teeth 214 are formed on the outer circumferential surfaces of the drive gear 252 and the first disk 210, and the driving force transmission unit 253 includes the drive gear 252 and the first disk 210. Although it is formed of a timing belt that is engaged with the gear teeth 214 of the rotation), sprockets are formed on the outer circumferential surfaces of the drive gear 252 and the first disk 210, respectively, and the driving force transmission unit 253 is caught by the sprockets and rotated. It can also be composed of a chain.

In addition, the body portion transfer part 255 serves to transfer the body portion 251 in the longitudinal direction from the upper portion of the nacelle cover 130.

The body transfer part 255 is provided along the longitudinal direction of the nacelle cover 130 on the upper part of the nacelle cover 130, and the guide rail 256 and the nacelle cover 130 to which the body part 251 is slidable. It includes a rack gear 257 provided along the longitudinal direction of the nacelle cover 130, and a driving body (not shown) provided on the bottom surface of the body portion 251 and engaged with the rack gear 257 in the upper portion.

The guide rail 256 is longitudinally disposed on the nacelle cover 130 so that the body 251 slides in the longitudinal direction from the upper portion of the nacelle cover 130.

The rack gear 257 is spaced apart from the guide rail 256 and is provided along the longitudinal direction of the nacelle cover 130 at an upper portion of the nacelle cover 130.

That is, the body portion 251 is rotated by the driving body (not shown) provided on the bottom surface is engaged with the rack gear 257, the body portion 251 is at the top of the nacelle cover 130 along the guide rail (256) Reciprocating

Here, the driving body (not shown) includes a pinion gear that rotates in engagement with the rack gear 257.

Meanwhile, referring to FIGS. 2 and 5, since the rotor lock disk 200, the hub 121, and the rotation shaft 160 are rotated in cooperation with each other, the blade 110 may be used when the wind turbine is being repaired or the hub 121 is repaired. In order to fix the hub 121 and the rotation shaft 160 when installing and replacing the locking pin 270 is inserted into the rotor lock disk 200 and fixed.

The locking pin 270 is installed to reciprocate on the upper portion of the frame portion 190 so that the locking pin 270 can be inserted into any one of the plurality of hole portions 215 of the rotor lock disk 200.

At this time, a plurality of holes 215 of the rotor lock disk 200 are provided on the surface of the rotor lock disk 200 to be spaced apart from each other in the circumferential direction.

Referring to the operation of the wind turbine rotor rotating apparatus according to an embodiment of the present invention configured as described above are as follows.

6 and 7 are front views showing the state before and after the operation of the rotor rotation apparatus for a wind turbine according to an embodiment of the present invention.

In installing the plurality of blades 110 in the hub 121, the hub 121 must be rotated to maintain the blade 110 connection portion 123 in a horizontal state.

Accordingly, the rotor rotating device for a wind turbine generator according to the present embodiment is provided with a hydraulic disk main driver 230 and an auxiliary driver 250 for rotating the rotor lock disk 200 which rotates in association with the hub 121.

First, the state before rotating the rotor lock disk 200 will be described.

6 shows a state before the rotor lock disk 200 is rotated, and the hydraulic disk main driver 230 is provided on both sides of the rotor lock disk 200.

That is, the driving cylinder 233 is provided at the front end of the frame part 190, the clamp 235 is installed at the tip of the cylinder rod 234 of the driving cylinder 233, and is inserted into and coupled to the clamp part 235. The rotating bar 231 is provided.

In addition, the auxiliary driving unit 250 is installed on the nacelle cover 130, and the driving force transmitting unit 253 is wound around the first disk 210.

5, the locking pin 270 is inserted into the hole 215 of the second disk 211 to prevent the rotor lock disk 200 from rotating.

Next, the operation of rotating the rotor lock disk 200 will be described.

As shown in FIG. 7, the driving cylinder 233 is rotated to insert the rotation bar 231 into the hole 215 of the second disk 211.

Then, after the locking pin 270 is released from the hole 215 of the rotor lock disk 200, the cylinder rod 234 of the hydraulic disk main drive unit 230 is extended or contracted to open the second disk 211. Rotate In addition, the first disk 210 is rotated by the drive gear 252 of the auxiliary driving unit 250.

At this time, the angular velocity of the second disk 211 and the driving gear 252 of the second disk 211 according to the expansion or contraction of the cylinder rod 234 so that the first disk 210 and the second disk 211 can be rotated at the same angular speed. Adjust the angular velocity.

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 or scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

110: blade 121: hub
130: nacelle cover 140: tower
160: rotating shaft 170: bearing housing
180: gearbox 190: frame portion
200: rotor lock disk 210: first disk
211: 2nd disc 215: hole part
230: hydraulic disc main drive unit 231: rotary bar
232: support groove 233: drive cylinder
235: clamp 237: buffer pad
250: auxiliary driving unit 251: body
252: drive gear 253: drive force transmission unit
255: body transfer unit 256: guide rail
257: rack gear 270: locking pin

Claims (10)

A rotor lock disc inserted through the rotating shaft connected to the hub of the rotor and rotating in association with the hub; And
A hydraulic disk main drive unit connected to the rotor lock disk and providing a rotational driving force to rotate the rotor lock disk while being extended or contracted by supply and withdrawal of a working fluid,
The hydraulic disc main drive unit,
A rotation bar inserted into any one of a plurality of hole parts spaced apart from each other in the circumferential direction of the rotor lock disk;
A driving cylinder connected to the rotation bar to provide an urging force to the rotation bar as it is extended or contracted;
A clamp provided at the end of the cylinder rod of the driving cylinder and inserted into the rotation bar; And
And a shock absorber pad surrounding the surface of the cylinder rod to prevent damage due to friction with the surface of the rotor lock disk. delete The method of claim 1,
The rotating bar,
Rotor rotating device for a wind turbine is formed with a support groove so that the clamp can be stably supported. delete The method of claim 1,
The rotor lock disk,
A first disk through which the rotary shaft is inserted; And
A second disk inserted into an outer circumferential surface of the first disk and rotating in association with the first disk,
And the plurality of hole portions are formed to be spaced apart from each other in the circumferential direction of the second disk. The method of claim 5,
The rotor lock disk is formed stepped so that the thickness of the first disk is thicker than the thickness of the second disk,
A rotor rotation apparatus for a wind power generator, which is detachably provided on an upper portion of a nacelle cover for a wind power generator, and is connected to an outer circumferential surface of the first disk to rotate the first disk. The method according to claim 6,
The sub-
A body part detachably provided at an upper portion of the nacelle cover;
A drive gear provided in the body part and providing a rotational driving force; And
The rotor rotating device for a wind turbine including a driving force transmission unit which passes through an upper portion of the nacelle cover and is wound on an outer circumferential surface of the driving gear and the first disk and transmits a rotation driving force of the driving gear. The method of claim 7, wherein
The sub-
Is connected to the body portion, the rotor portion for a wind turbine further comprises a body portion transfer portion for transferring the body portion in the longitudinal direction of the nacelle cover. 9. The method of claim 8,
The body portion transfer unit,
A guide rail provided in an upper portion of the nacelle cover along a longitudinal direction of the nacelle cover and slidably connected to the body part;
A rack gear provided in an upper portion of the nacelle cover along a longitudinal direction of the nacelle cover; And
The rotor rotating device for a wind power generator is provided on the bottom surface of the body portion, and including a drive body meshed with the rack gear. The method of claim 1,
And a locking pin inserted into at least one of the plurality of holes to fix the rotor lock disk.

Images