KR20110093520A

KR20110093520A - Manual moving system for maintenance crane of windmill

Info

Publication number: KR20110093520A
Application number: KR1020100013627A
Authority: KR
Inventors: 오재욱
Original assignee: 오재욱
Priority date: 2010-02-12
Filing date: 2010-02-12
Publication date: 2011-08-18

Abstract

PURPOSE: It is overturned among driving or it is not deviated from the cold air duct frame, and it passively can operate in the environment of the high sky without the power source or the energy source. CONSTITUTION: A manual moving system for maintenance crane of aerogenerator comprises a rail(3), a wheel fixing device(10), a wheel(8), and a wheel hinge(9). The rail parallelly fixes on the top of a nacelle frame(1) to the traveling direction. The wheel fixing device fixes to the bolt and nut on the bottom surface of the crane body. The wheel puts together in the fixed wheel fixing device. The wheel hinge puts together through the wheel fixing device and wheel.

Description

Manual Moving System for Maintenance Crane of Wind Power Generator

Technology related to manual driving of maintenance cranes for wind turbines.

The background technology is to control the driving trajectory and stop position of the maintenance crane accurately and to configure the system so that the maintenance crane can be manually driven without requiring power or energy source.

Medium and large sized wind turbines are installed at 50 to 100 meters above the ground in order to convert more wind into energy, and even in locations with high maintenance cranes due to the installation environment where electricity is not available during maintenance. The trajectory must be configured to operate safely without overturning or derailing during travel, and requires manual driving without power.

In order to prevent the maintenance crane from overturning or falling off while driving, the closed circuit wirerope system is constructed using a commercial wire rope, and the reducer and driving drum body are installed in one section of the closed rope system. The chain pulley is provided on the input side of the chain and the hand chain is installed on the circumferential surface of the chain pulley so that the maintenance crane can be driven by manually turning the hand chain.

By applying the present invention, the maintenance crane installed in the wind turbine is not overturned or escaped from the nussel frame while driving, and it is possible to operate and operate the maintenance crane manually even in a high altitude environment without a power source or an energy source.

First degree. Stereo perspective view of the present invention.
Second degree. Front view of the present invention.
Third degree. Top view of the present invention.
4th. Bottom view of the present invention.
5th. Bottom perspective view of the present invention.
6th. Detailed view of main parts of the invention.
7th. Detailed drawing of the running drum.

In the case of installing the maintenance crane on the nussel frame (1), which is the main steel structure of the wind turbine, for the maintenance of the wind turbine installed at a high position on the ground to convert the wind into electrical energy,

As shown in detail in FIGS. 1 to 6,

In order to prevent the maintenance crane from being rolled over or detached during driving, a plurality of rails 3 are fixed to the upper part of the nussel frame 1 in the running direction in parallel, and the two are parallel to the above-described intervals of the rails 3. A plurality of wheel fasteners 10 are fixed to the bottom surface of the crane body 2 using bolts 14 and nuts 15 so as to be a pair while maintaining an interval.

Assembling the wheel (8) in each of the fixed wheel fasteners (10) and through the wheel fixtures (10) and the wheels (8) to assemble the wheel hinges (9) by the maintenance crane wheels (8) Since rolling along the rail (3) fixed to the upper part of 1) can minimize the frictional resistance generated during driving,

In order to form the driving trajectory so that the maintenance crane can move horizontally and parallel,

Place four roller fasteners (6) on the crane body (2), bolts (14) and nuts (15), two at each end, so that the two pairs are parallel and spaced near both ends of the nussel frame (1). Fixed using,

Assembling a commercial guide roller (4) having a groove for guiding the transfer of the wire rope (7) in each fixed roller fastener (6), through the roller fixture (6) and the guide roller (4) By assembling the roller hinge 5, the guide roller 4 is configured to guide the transfer of the wire rope 7 while rotating about the roller hinge 5,

The traveling drum body 20 is fixed on the same line as the wire rope 7 at one end of the bottom surface of the crane body 2, and the speed reducer 16 is fixed to one end of the traveling drum body 20, The chain pulley 18 is fixed to the input shaft, and the circumferential surface of the chain pulley 18 is machined with a corresponding groove to fit the shape of the hand chain 12, and the groove on the circumferential surface of the chain pulley 18 described above. Assemble the hand chain 12,

The eye bolt 11 is fixed to one end surface of the crane body 2, the turnbuckle 13 is fixed to the eye bolt 11, and the wire rope 7 is fixed to one end of the turnbuckle 13, After passing through one of the two guide rollers (4) installed on the same line in the driving direction at both ends of 1),

The other one of the two guide rollers (4) installed on the same line in the running direction on both ends of the nussel frame (1) and wound around the running drum body 20 fixed to the bottom surface of the crane body (2) Passes through the roller (4) and is fixed to the other end surface of the crane body (2) using an eye bolt (11),

Running drum body 20 of one phase by installing a pair of running drum body 20 on both ends of the bottom end of the crane body 2 so that the crane body (2) travels in parallel and connected by a connecting shaft (17) Is rotated at the same speed, it is fixed using a plurality of shaft support 19 so that the above-described connecting shaft 17 is not struck down by its own weight.

When the manual driving system is configured as described above, the wire rope 7 forms a closed circuit wirerope system which is completely closed as a whole, and the user pulls the hand chain 12 back and forth to chain the pulley 18. When the rotation occurs, the generated rotational force passes through the reducer 16, and the reduction ratio is applied, but the speed is slowed down. However, the rotational force is amplified and the driving drum body 20 is turned by a powerful force. The pulling force is generated in the wire rope 7 and the release force is generated in the wire rope 7 on the other side. As a result, the crane main body 2 moves in one direction and the maintenance crane moves in the driving direction.

Looking at the configuration of the driving drum body 20 described above in detail,

A pair of drum fasteners 21 are disposed to face the top of the flat drum fixing plate 25, and a winding drum 24 is assembled into a drum fixing groove 28 formed at the center of the drum fastener 21, and a drum fastener ( 21 to assemble the rotary ring 22 and the rotating shaft 23 through the plurality of shaft fixing grooves 27 formed therein, and both ends of the circumferential surface of the rotating shaft 23 so that the rotating shaft 23 is not separated from the drum fixture 21. By assembling and fixing the split pin 26 in the split pin fixing groove 30 formed in the winding drum 24 rotates around the drum fixing groove 28 formed in the drum fixture 21, and a plurality of rotating rings 22. Can rotate individually about the rotating shaft 23, so that the rotational force generated in the hand chain 12 by the user's operation in the state in which the wire rope 7 is wound several times while maintaining the tension in the winding drum 24 When the amplification through the reducer 16 to rotate the winding drum 24, the wire rope (7) By pulling the wire rope 7 from one side by the friction action between the winding drum 24 and the circumferential surface of the winding drum 24, the wire ring 7 is pushed to the other side. While individually rotating around the wire rope (7) serves to guide to be pushed to the side without twisting each other.

1.Nussel frame 2.Crane body
3.rail 4.guide roller
5.Roller Hinge 6.Roller Fixture
7.Wire Rope 8.Wheels
9.wheel hinge 10.wheel fixture
11.I Bolt 12.Hand Chain
13. Turnbuckle 14. Bolt
Nut 16.Reducer
17.Connecting shaft 18.Chain pulley
19. Axle support 20. Driving drum
21.Drum stopper 22.Rotating ring
23.Rotating shaft 24.Rewinding drum
25.Drum fixing plate 26.Split pin
27.Axial lock groove 28.Drum lock groove
29.Bolt Retaining Groove 30.Partition Pin Retaining Groove

Claims

In the case of installing the maintenance crane on the nussel frame, which is the main steel structure of the wind turbine, for the maintenance of the wind turbine installed at a high position on the ground to convert the wind into electrical energy,
In order to prevent the maintenance crane from overturning or falling off while driving, a plurality of rails are fixed to the upper part of the nussel frame in parallel in the driving direction,
Fasten the multiple wheel fasteners to the bottom of the crane body with bolts and nuts so that the two pairs are spaced in parallel with the rails.
Assemble the wheel to each fixed wheel fixture and assemble the wheel hinge through the wheel fixture and the wheel,
In order to form the driving trajectory so that the maintenance crane can move horizontally and parallel,
Fasten the four roller fixtures on the crane body with bolts and nuts, two at each end so that they are in pairs, keeping the parallel gaps near both ends of the nussel frame.
Assemble a commercially available guide roller with grooves for guiding the wire rope in each fixed roller fixture.
By assembling the roller hinge through the roller fixture and the guide roller, the guide roller is configured to guide the transfer of the wire rope while rotating about the roller hinge.
Fix the running drum body on the same line as the wire rope at the bottom end of the crane body, fix the reducer at one end of the running drum body, and fix the chain pulley at the input shaft of the reducer,
The circumferential surface of the chain pulley is machined with a corresponding groove to fit the shape of the hand chain, and the hand chain is assembled into the groove on the circumferential surface of the chain pulley described above.
Fix the eye bolt on one end of the crane body, fix the turnbuckle on the eye bolt, and fix the wire rope on one end of the turnbuckle,
After passing one guide roller out of two guide rollers installed on the same line in the driving direction at both ends of the nussel frame,
Wind several times on the traveling drum body fixed to the bottom of the crane body and pass the other guide roller out of two guide rollers installed in the same line in the driving direction on both ends of the nussel frame, and use the eye bolt to Fixed to the cross section,
By installing a pair of running drums on both ends of the bottom of the crane main body so that the crane main body travels in parallel and connecting them with the connecting shaft, the running drum body of the one phase rotates at the same speed, and the connecting shaft rotates downward by its own weight. Fasten using a number of shaft supports,
The running drum body is arranged so as to face a pair of drum fixtures on the upper part of the flat drum holder plate, the winding drum is assembled in the drum holder groove formed in the center of the drum holder, and the rotary ring passes through the shaft holder grooves formed in the drum holder. To assemble the rotating shaft,
Manual driving system of a wind turbine maintenance crane, characterized in that the split pin is assembled and fixed to the split pin fixing groove formed on both ends of the circumferential surface of the rotary shaft so that the rotating shaft is not separated from the drum fixture.