KR20160017986A - Lifting apparatus of Nacelle frame - Google Patents

Abstract

A lifting apparatus of a nacelle frame is disclosed. The lifting apparatus of a nacelle frame, according to an embodiment of the present invention, comprises: a lug part which is installed in a nacelle frame to lift a beam assembly where the nacelle frame is placed; a moving part which moves the lug part in the internal longitudinal direction of the nacelle frame to maintain the balance of the beam assembly according to the movement of the nacelle frame in case the weight of the nacelle frame is changed; and a fixing part which selectively fixes the position of the moved lug part. Therefore, the present invention enables the stable lifting of the nacelle frame placed in the beam assembly by installing the lug part in the beam assembly and easily moves the lug part regardless of the weight change of the nacelle frame.

Description

[0001] Lifting apparatus of Nacelle frame [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting device for stably lifting a nacelle frame, and more particularly, to a lifting device for a nacelle frame.

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 in producing a large amount of electricity, but an enormous facility cost is required to prevent radiation leakage, and a strong rebound of local residents is expected due to the risk of radiation leakage. There is always a risk of causing severe environmental destruction.

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 generation is emerging as an alternative from the viewpoint of using clean energy sources among natural energy-based power generation. Wind power generation is easy to operate and manage, and can be operated unattended and automated. Therefore, the introduction has increased dramatically in recent years.

On the other hand, in the past, wind power generation structures were mainly located on land, but due to environmental problems caused by noise and vibration, power generation capacity has become larger, and aesthetics, As a result,

A wind turbine generator is a device for producing electric energy from wind-induced rotational energy. The wind turbine generator includes a rotor having a hub to which a plurality of blades rotated by the wind are connected, and a nacelle a nacelle cover that supports and protects the nacelle, and a tower that supports the blade, rotor, nacelle, and nacelle cover. The blade uses aerodynamically designed geometry to generate useful aerodynamic torques in the wind energy and generates electricity by rotating the generator using aerodynamic torques.

The blade must be able to support the load induced by its shape structurally as well as aerodynamic shape is important to increase the amount of electricity generated.

Korean Patent Publication No. 10-2012-054156 (Publication date: May 30, 2012)

Embodiments of the present invention provide for a stable lifting of the nacelle frame when the nacelle frame is lifted through the wire in a state where the nacelle frame is mounted on the beam assembly by installing the lug part on the beam assembly, The lug portion is moved to facilitate the movement of the nacelle frame.

According to an aspect of the present invention, there is provided a nacelle frame, comprising: a lug part mounted on a nacelle frame for lifting of a beam assembly on which a nacelle frame is placed; A moving unit for moving the lug part in an inner longitudinal direction of the nacelle frame for balance of the beam assembly when the weight of the nacelle frame is changed; And a fixing part for selectively fixing the position of the moved lug part.

The lug portion including a plate-shaped lug body positioned perpendicular to the longitudinal direction of the upper end of the beam assembly; A through hole through which the wire is coupled to the lug body; And a reinforcing rib extending to the upper end of the through hole to prevent deformation of the lug body depending on the load of the wire.

And the lug part is formed at a position where the opening of the through hole extends outward from a side surface of the lug body.

The moving part includes a bearing positioned at a lower end and an upper end of the lug part to allow relative movement of the lug part along an inner circumferential surface of the beam assembly.

Wherein the moving part is provided inside the beam assembly and the lug part is fixed to the upper surface of the guide rail; A gear unit coupled to the guide rail in a tooth-like manner; And a motor unit for providing a rotational force to the gear unit to move the guide rails along the longitudinal direction of the beam assembly.

The lifting device of the nacelle frame includes a control unit for controlling the operation state of the motor unit, and the control unit controls the rotation speed of the motor unit to control the position of the lug unit.

Wherein the fixing portion includes a fixing bracket inserted inwardly from the outside of the beam assembly through an insertion hole opened at regular intervals on an upper surface on which the lug portion is located; And an insertion portion formed in the lug portion and having an end portion of the fixing bracket inserted therein.

The lifting device of the nacelle frame further includes a sensing unit for sensing a relative movement distance of the lug part.

The lifting device of the nacelle frame includes markers equidistantly spaced on the outer circumferential surface of the beam assembly for visually recognizing the movement position of the lug part.

Embodiments of the present invention can safely lift the nacelle frame, thereby improving the workability of the operator. Even when the weight of the nacelle frame is different, the horizontal state can be stably maintained, and safety of the operator is also ensured.

1 is a perspective view illustrating a lifting device of a nacelle frame according to an embodiment of the present invention;
2 to 3 are perspective views showing another embodiment of a lug portion according to an embodiment of the present invention.
4 is a view illustrating a control unit of a lifting device of a nacelle frame according to an embodiment of the present invention and a peripheral configuration associated with the control unit.
FIG. 5 is a view illustrating a fixed state of a lifting device of a nacelle frame through a fixing bracket according to an embodiment of the present invention. FIG.

A structure of a lifting device of a nacelle frame according to an embodiment of the present invention will be described with reference to the drawings.

1 to 3, the lifting device of the nacelle frame includes a lug part 100 installed on the beam assembly 10 on which the nacelle frame 2 is mounted, so that the nacelle frame 2 can be stably moved A lug part 100 mounted on the nacelle frame 2 for lifting of the beam assembly 10 with the nacelle frame 2 mounted thereon for the weight of the nacelle frame 2, A moving part 200 for moving the lug part 100 in an inner longitudinal direction of the nacelle frame 2 in order to balance the beam assembly 10 according to the movement of the lug part 100, And a fixing part 300 for fixing the position of the fixing part 300 selectively.

A plurality of lug portions 100 are disposed in the longitudinal direction of the upper end of the beam assembly 10. The number of the lug portions 100 may be varied considering the weight of the nacelle frame 2, .

For example, when the weight of the nacelle frame 2 is relatively heavy, when the lifting is performed in a state of being mounted on the beam assembly 10, the beam assembly 10 is not inclined leftward or rightward, Since the wires can be quickly connected to the plurality of lug parts 100 and the nacelle frame 2 can be moved, the workability of the operator can be improved and the work time can be relatively shortened, thereby performing more efficient operations. can do.

The lug part 100 includes a lug body 102 in the form of a plate positioned in a vertical state, a through hole 104 opened to the lug body 102 and coupled with the wire, And a reinforcing rib 106 extending to prevent deformation of the lug body 102 due to the load of the wire.

For example, the lug body 102 may be formed in a shape shown in the drawing, but may be modified to other shapes. When the tensile force is generated in one direction in a state where the wires are coupled, .

The lug body 102 may be of a type in which the through hole 104 is open at the center, in which case the lug portion 100 is positioned inside the beam assembly 10 in the state shown in the drawing.

The reinforcing ribs 106 are formed to have a relatively thicker thickness than the lower end of the lug body 102 to prevent deformation or breakage when a load of the nacelle frame 2 is applied after the wire is installed in the through- .

The reinforcing ribs 106 may be deformed into various shapes, for example, a shape having a semicircular cross-section toward the outside or a shape in which a reinforcing rib is formed for reinforcing the strength only around the through hole 104 may be selectively used , It is possible to change to other forms other than those mentioned above.

The reinforcing ribs 106 may increase the structural thickness of the lug body 102 by increasing the thickness of the lug body 102, or structural strength of the lug body 102 may be improved by heat treatment or by changing the manufacturing method.

3, the lug part 100 according to the present embodiment is configured such that the position where the through hole 104 is opened is located at the side of the lug body 102, not at the right center of the lug body 102, And in this case direct interference with the wire and the beam assembly 10 is prevented so that breakage of the wire can be prevented in advance. Also, when a worker installs a wire in the through hole 104, the worker can be more easily coupled to the through hole 104, thereby improving the workability of the operator.

The beam assembly 10 includes an upper frame 11 and a lower frame 12 as an H-shaped structure and a connecting frame 13 connecting the upper frame 11 and the lower frame 12 to each other. For reference, a plurality of lug parts 100 are disposed in the inner longitudinal direction of the upper frame 11.

The lug part 100 according to the present embodiment can be moved to a specific position by the operator in the longitudinal direction of the beam assembly 10 through the moving part 200. For example, the weight of the nacelle frame 2 Or when the horizontal position of the beam assembly 10 needs to be adjusted because the weight of the left or right side is relatively heavy after the nacelle frame 2 is mounted on the beam assembly 10, Thereby adjusting the horizontal state of the beam assembly 10 to perform stable lifting of the nacelle frame 2.

The moving unit 200 includes a bearing (not shown) that is positioned at a lower end and an upper end of the lug unit 100 and is movable relative to the inner peripheral surface of the beam assembly 10 to allow movement of the lug unit 100 202) is used. In this case, the bearing 202 is brought into rolling contact with the inside of the beam assembly 10, and the movement of the lug part 100 is made to a specific position.

The bearing 202 is inserted into the lug body 102 and selectively inserted into the bearing insertion groove 11a formed in the longitudinal direction of the upper frame 11 by being pushed by a spring (not shown) The whole of the lug part 100 may be moved along the inner longitudinal direction of the upper frame 11.

It is noted that the bearings 202 may be formed at all of the positions described above, or may be disposed only at specific positions, and that the bearings 202 may be moved using the rollers together with the movement of the lug part 100 using the bearings. That is, movement through rolling contact through a normal rotating member is all possible, and is not necessarily limited to a bearing or roller type.

A moving unit according to another embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 4, the moving part 200 according to the present embodiment can move the lug part 100 to a specific position by using a mechanical driving force. To this end, the moving part 200 is provided inside the beam assembly 10 A gear unit 220 coupled to the guide rail 210 in a state where the lug unit 100 is fixed on the upper surface of the gear unit 220, And a motor unit 230 for moving the guide rail 210 along the longitudinal direction of the beam assembly 10. [

In order to move along the inner longitudinal direction of the beam assembly 10, both ends of the guide rail 210 are partially supported by a holder bracket (not shown), and the guide rail 210 is held by a holder bracket Movement is performed by the motor unit 230 while minimal friction is generated.

The guide rails 210 are disposed on the inner side of the upper frame 11 and the motor unit 230 is also independently disposed to provide a rotational force to the respective guide rails. Is controlled.

The control unit 400 controls the motor unit 230 at a specific rotation speed or enables the movement to the guide rail 210 through on / off control.

The lug part 100 can be conveniently and automatically moved without the worker moving the lug part 100 to a specific position in a state where the lug part 100 is fixed to the guide rail 210. This improves the workability of the worker, Can be stably maintained.

The beam assembly 10 is provided with a tilt sensor for detecting a tilt, and when the beam assembly 10 is inclined in a specific direction, the tilt sensor senses the tilt sensor and transmits the tilt sensor to the controller 400.

The control unit 400 determines that the current beam assembly 10 is in an inclined state through the tilt sensor and performs automatic horizontal control on the beam assembly 10 through the operation of the drive unit and the rotation speed control.

Therefore, the operator can automatically adjust the horizontal position of the beam assembly 10 without adjusting the horizontal position, so that lifting of the nacelle frame 2 can be performed safely and efficiently, and workability is improved.

In this case, the rotational force generated by the motor is transmitted to the guide rail 210 in a state in which the rotational force and the torque are controlled via the speed reducer. Therefore, the guide rail 210 is gradually moved at a specific moving speed and moved to the lug part 100.

Referring to FIG. 5, the fixing part 300 is fixed to the inside of the beam assembly 10 through the insertion hole 14, which is opened at regular intervals on the upper surface where the lug part 100 is located, A bracket 310 and an insertion part 320 formed in the lug part 100 and into which an end of the fixing bracket 310 is inserted.

In the present embodiment, the type of the fixing part 300 is limited to the fixing part using the fixing bracket 310, but it is possible to change the fixing part 300 to another type for fixation to the lug part 100 Leave.

For example, the lug may be fixed to a specific position using a magnet, in which case the magnet may be mounted on the lug or may be fixed to the lug through the hinge bracket to the outside of the beam assembly It can be possible.

The lifting device of the nacelle frame according to the present embodiment further includes a sensing part 500 sensing a relative movement distance of the nugget frame 100 as the lug part 100 moves. The control unit 400 transmits data according to the movement distance of the relatively moved lug unit 100 to the control unit 400. The control unit 400 combines data input from the tilt sensor to determine whether the current beam assembly 10 is in a horizontal state .

If the nacelle frame 2 is mounted on the current beam assembly 10 and is not eccentrically eccentrically held in a specific direction, the information about the current position of the lug part 100 input through the sensing part 500 And the data inputted from the tilt sensor are combined to determine the horizontal state of the beam assembly 10. When it is necessary to adjust the horizontal state with respect to the beam assembly 10, The position of the beam assembly 10 is stabilized.

The lifting device 1 of the nacelle frame includes markers 20 equally spaced on the outer circumferential surface of the beam assembly 10 to allow the operator to visually recognize the moving position of the lug portion 100. The marker 20 can be visually and easily perceived by the operator as the moved length of movement of the lug part 100 allows accurate determination of where the marker 20 is located when moved in the longitudinal direction of the beam assembly 10 So that it is possible to accurately recognize a state where the nacelle frame 2 is positioned at a specific position of the upper frame 11 when lifting the nacelle frame 2. [

Therefore, the movement point of the lug part 100 can be grasped accurately according to the weight change of the nacelle frame 2, workability is improved, unnecessary workload is minimized, and more efficient lifting work can be performed.

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.

2: nacelle frame
10: beam assembly
100: lug portion
102: lug body
104: Through hole
106: reinforcing rib
200:
202: Bearings
210: guide rail
220: gear unit
230: Motor unit
300:
400:
500:

Claims (9)

A lug portion mounted on the nacelle frame for lifting the beam assembly with the nacelle frame mounted thereon;
A moving unit for moving the lug part in an inner longitudinal direction of the nacelle frame for balance of the beam assembly when the weight of the nacelle frame is changed; And
And a fixing part for selectively fixing the position of the moved lug part. The method according to claim 1,
The lug portion
A lug body in the form of a plate positioned perpendicular to an upper inner longitudinal direction of the beam assembly;
A through hole through which the wire is coupled to the lug body;
And a reinforcing rib extending from the opening to the upper end to prevent deformation of the lug body depending on the load of the wire. 3. The method of claim 2,
The lug portion
Wherein the opening of the nacelle frame is formed at a position extending outward from a side surface of the lug body. The method according to claim 1,
The moving unit includes:
And a bearing positioned at a lower end and an upper end of the lug portion to enable relative movement of the lug portion while being relatively rotated along an inner circumferential surface of the beam assembly. The method according to claim 1,
The moving unit includes:
A guide rail disposed inside the beam assembly and positioned with the lug part fixed to the upper surface;
A gear unit coupled to the guide rail in a tooth-like manner;
And a motor unit for providing a rotational force to the gear unit to move the guide rail along the longitudinal direction of the beam assembly. 6. The method of claim 5,
In the lifting device of the nacelle frame,
And a control unit for controlling an operating state of the motor unit,
Wherein the control unit controls the position of the lug unit by controlling the number of revolutions of the motor unit. 6. The method of claim 5,
The fixing unit includes:
A fixing bracket inserted inwardly from the outside of the beam assembly through an insertion hole opened at regular intervals on an upper surface on which the lug portion is located;
And an insertion portion formed in the lug portion and having an end portion of the fixing bracket inserted therein. 6. The method of claim 5,
In the lifting device of the nacelle frame,
And a sensing unit sensing a relative movement distance of the nugget frame as the lug unit moves. 6. The method of claim 5,
In the lifting device of the nacelle frame,
And a marker marked at equal intervals on an outer circumferential surface of the beam assembly for visually recognizing the movement position of the lug part by a worker.

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