KR101694234B1 - Turbine rotor stand equipment - Google Patents

Abstract

The present invention provides turbine rotor seating equipment. The turbine rotor seating equipment comprises: a driveshaft portion, in which one end of a rotation part of a rotor is seated, which rotates the rotation part of the rotor in such a manner that a width thereof is adjustable to correspond to a diameter of one end of the seated rotation part; and a vertical driveshaft portion configured to be spaced apart from the driveshaft portion, rotate-support the other end of the rotation part of the rotor, and operate in association with an operation of the driveshaft portion. Accordingly, the present invention provides turbine rotator seating equipment to seat a turbine rotator of various lengths and diameters, as well as to adjust horizontality thereof.

Description

{TURBINE ROTOR STAND EQUIPMENT}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a turbine rotor seating apparatus, and more particularly, to a turbine rotor seating apparatus capable of seating a turbine rotor having various lengths and diameters and adjusting the level of the turbine rotor.

In general, when a gas turbine rotor needs to be repaired due to its heavy weight of tens of tons, the operator places the turbine on a stand and then climbs the ladder to inspect the blades of the rotor on the rotor of the compressor and the gas turbine bucket Was performed.

The support for supporting the conventional gas turbine rotor is configured to support the rotor shaft formed on both sides of the gas turbine rotor at the bottom surface.

In recent years, while using a rotary roller stand, the bending phenomenon that occurs when a gas turbine rotor of tens of tons is placed on a support for a long time is removed by its own weight.

However, the turbine shafts among the power generation facilities are designed to have different lengths and diameters of the shafts depending on the types of turbines.

In such a case, when using a conventional rotary roller stand during the disassembly and inspection of the shaft, the axes of different diameters are seated on the fixed roller. Therefore, when the shaft rotates on the stand, there is a risk that the turbine shaft falls due to the center- There is a problem.

In addition, when the turbine shaft rotates, the shaft is disengaged in the axial direction, so that the equipment may be damaged due to contact between the last blade installed on the turbine shaft and the stand.

In addition, since the rotary shaft is driven by the ONE SHAFT ONE ROLLER method, there is a problem that power is lost due to an overload when the rotary shaft is seated on the stand and work conditions are not smooth.

Turbine rotor rotating device (Patent Application No. 10-2010-0040537)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a turbine rotor seating apparatus capable of seating a turbine rotor having various lengths and diameters and adjusting the level of the turbine rotor.

In a preferred embodiment, the present invention provides a turbine rotor seating arrangement.

The turbine rotor mounting apparatus includes a drive shaft portion having one end of a rotor of the rotor mounted thereon and rotating the rotor of the rotor in a state of being adjustable in width so as to correspond to a diameter of one end of the rotor to be mounted; And a driven shaft portion which is spaced apart from the drive shaft portion and which rotatably supports the other end of the rotor and which is interlocked with the drive shaft portion.

The driving shaft portion includes a main body portion supported on a paper surface, a roller portion disposed on the main body portion and having a pair of rotation rollers for rotatably supporting one end of the rotor of the rotor, A balance maintaining unit disposed at a lower portion of the roller unit and configured to maintain a balance of the roller unit; And a height adjusting portion for adjusting the height.

Wherein the roller portion includes a pair of roller cases in which the pair of rotating rollers are respectively disposed, a motor for generating a rotating force, and a pair of rotating rollers for transmitting rotational force from the motor to the pair of rotating rollers, A driving shaft for driving the driving shaft, and a first support for rotationally supporting the driving shaft.

The gap adjusting unit may include a second support member installed on the main body to be disposed below the first support member, a pair of screw shafts disposed on the second support member to be rotatable by an external rotational force, And a pair of handles provided at the ends of each of the pair of screw shafts.

Preferably, each of the pair of roller cases is connected to the pair of screw shafts, and horizontally moves according to the rotation direction of the pair of screw shafts so that the gap between the pair of roller shafts can be adjusted.

Wherein the pair of roller cases is disposed so that a gap limiting axis is passed therethrough, and a top end of the interval limiting shaft is coupled through a pair of nuts disposed inside the pair of roller cases, It is preferable that the interval is limited.

Wherein the balance holding portion includes a pair of balance blocks disposed between the upper end of the main body and the second support, a balance shaft disposed between the pair of balance blocks, and a length of the balance shaft at both sides of the balance shaft A plurality of balance springs disposed along the direction of the pair of balance blocks for elastically supporting the pair of balance blocks and a plurality of balance plates provided around the pair of balance blocks to fix the pair of balance blocks Do.

Wherein each of the plurality of balance plates includes a plate body having four bolt mounting holes each having a curvature at four corners thereof, and a pair of balance blocks that are movable in the bolt mounting holes, It is preferable to provide a plurality of locking bolts for fixing the periphery.

A plurality of mounting recesses are formed in the lower edge of the main body to provide the height adjuster.

The height adjusting unit includes a height adjusting bolt that is screwed through the upper end of the mounting groove and is disposed so as to be able to move up and down according to a screw tightening direction; And a locking nut for restricting the locking member.

The motor is driven under the control of the control unit.

Preferably, the control unit controls the rotation speed and the rotation stop of the pair of rotating rollers through driving of the motor, and stops the driving of the motor when the set overload condition is reached.

Wherein one end and the other end of the rotor of the rotor are seated to be rotatably supported by the drive shaft portion and the follower shaft portion and the rotor between one end and the other end of the rotor is rotatably supported between the drive shaft portion and the follower shaft portion .

The main body is provided with a distance sensor for measuring a distance value between the rotor and a side of the rotor which is seated on the pair of rotating rollers and for transmitting the measured distance value to the controller.

The controller may generate an alarm using an external alarm when the measured distance value reaches a predetermined reference distance value.

It is preferable that a surface layer of a certain thickness formed of macarite is formed around the pair of rotating rollers.

The present invention is applicable to a shaft having a different length and diameter by adjusting the interval between the pair of rotating rollers, and it is possible to adjust the horizontal degree when the rotor is rotated, .

Further, the present invention can prevent the interference between the rotor of the driven chain rotor and the fixed chain, thereby reducing the economic loss due to component damage.

1 is a view showing an installation example of a turbine rotor seating apparatus of the present invention.
2 is a front view showing the turbine rotor seating apparatus of the present invention.
3 is a side view showing the turbine rotor seating apparatus of the present invention.
4 is a view showing a roller portion according to the present invention.
5 is a view showing an interval adjusting unit according to the present invention.
6 is a view showing a balance maintaining unit according to the present invention.
7 is a view showing a balance plate according to the present invention.
8 is a view showing a height adjusting unit according to the present invention.
9 is a view showing a configuration of a control unit according to the present invention.
10 is a view showing a pendant according to the present invention.
11 shows the screen operation state in the control unit according to the present invention.

Hereinafter, a turbine rotor seating apparatus according to the present invention will be described with reference to the accompanying drawings.

2 is a front view showing a turbine rotor seating apparatus of the present invention, and FIG. 3 is a side view showing a turbine rotor seating apparatus of the present invention .

Referring to Fig. 1, the turbine rotor seating apparatus of the present invention comprises a drive shaft portion 1 and a driven shaft portion 2.

The driving shaft portion 1 is rotatably mounted on a rotor 10 of the rotor in such a state that one end of the rotor 10 of the rotor is seated and the width thereof can be adjusted so as to correspond to the diameter of the one end of the rotor 10, .

The driven shaft portion 2 is spaced apart from the drive shaft portion 1 and rotatably supports the other end of the rotor 10 and is interlocked with the drive shaft portion 1 when driven. The driven shaft portion 2 is substantially the same as that of the drive shaft portion 1, but maintains the idle state without being driven by itself.

The configuration of the drive shaft portion 1 according to the present invention will be described as a representative example.

2 and 3, the driving shaft portion 1 according to the present invention includes a main body 100, a roller 200, a gap adjusting portion 300, a balance maintaining portion 400, And an adjusting unit 500.

The main body 100 will be described.

The main body 100 is supported on a support surface, and a height adjusting part 500, which will be described later, is installed at a lower end thereof.

The roller unit 200 will be described.

The roller unit 200 is disposed on the main body and has a pair of rotating rollers 211 for rotatably supporting one end of the rotor 10 of the rotor.

4 is a view showing a roller portion according to the present invention.

4, the roller unit 200 according to the present invention includes a pair of roller cases 210 in which a pair of rotating rollers 211 are respectively disposed, a motor 220 for generating a rotational force, A driving shaft 230 for transmitting a rotational force from the first rotating shaft 220 to the pair of rotating rollers 211 to drive the pair of rotating rollers 211, (240).

Here, the pair of rotating rollers 211 are rotated by one worm gear driving one of the driving shafts 230 by the motor and the speed reducer.

In order to prevent damage to the journal portion of the rotor 10 as a portion that directly rubs against the rotor 10 of the rotor as a rotating body, a marker layer (not shown) is formed on the circumferential surface of each of the rotating rollers 211, Is formed.

The roller unit 200 is provided with a gap adjusting unit.

5 is a view showing an interval adjusting unit according to the present invention.

Referring to FIG. 5, the gap adjusting unit 300 according to the present invention can variably adjust the gap between the pair of rotating rollers 211.

The gap adjusting part 300 according to the present invention includes a second support part 310 installed on the main body part 100 to be disposed below the first support part 240 and a second support part 310 installed on the second support part 310 A pair of screw shafts 320 rotatable by an external rotational force and a pair of handles 330 installed at the ends of each of the pair of screw shafts 320.

By the rotation of each handle 330, the pair of screw shafts 320 can be rotated.

Here, each of the pair of roller cases 210 is connected to the pair of screw shafts 320.

The roller case 210 can be moved laterally along the dodging screw shaft 320 in accordance with the rotational direction of the respective screw shaft 320. That is, The distance between them can be adjusted.

Accordingly, the interval between the pair of rotating rollers 211 can be variably adjusted.

In addition, in the pair of roller cases 210 according to the present invention, the gap limiting shaft 340 is disposed to pass through.

Here, the extremity of the gap limiting shaft 340 is fastened through a pair of nuts 341 disposed inside the pair of roller cases 210.

Accordingly, in the state where the gap is adjusted, the gap between the pair of roller cases 210 can be prevented from flowing by fixing the top end of the gap limiting shaft 340 through the nuts 341. That is, the pair of rotating rollers 211 can be prevented from being pushed radially .

A balance holding portion is provided at a lower end of the second support base 340.

The balance maintaining unit 400 will be described.

FIG. 6 is a view showing a balance maintaining part according to the present invention, and FIG. 7 is a view showing a balance plate according to the present invention.

Referring to FIG. 6, the balance maintaining unit 400 according to the present invention is disposed below the roller unit 200, and serves to balance the roller unit 200.

The balance maintaining unit 400 includes a pair of balance blocks 410 disposed between the upper end of the main body 100 and the second support 310 and the pair of balance blocks 410 A balance shaft 420 disposed between the balance shafts 420 and disposed on both sides of the balance shafts 420 and disposed along the longitudinal direction of the balance shafts 420 to elastically support the pair of balance blocks 410 And a plurality of balance plates 440 that are installed around the pair of balance blocks 410 and fix the pair of balance blocks 410.

In the pair of balance blocks 410, a balance shaft 420 having a circular shape is assembled at the central portion to correct the horizontal, vertical, and lateral directions with respect to the axis of the rotor 20. In addition, balance springs 430, which are four coil springs, are installed to absorb the impact.

For example, when a weight of 100 tons or more is placed on the pair of rotating rollers 211, the supporting point received by the rotating rollers 211, which is the contact portion due to deflection of the center of the rotor due to its own weight, The journal portion at the end can be stressed.

Accordingly, in the present invention, four balance springs 430 are provided between the equalizing blocks 410 to prevent stress on the journal portion due to point contact, thereby preventing fluid leveling and shocks.

7, each of the plurality of balance plates 440 includes a plate body 441 having four bolt installation holes 441a having curvature at four corners, And a plurality of locking bolts 442 for fixing the pair of balance blocks 410 in a state in which the roller unit 200 is balanced.

With reference to this configuration, it is possible to adjust the left and right parallelism of the pair of rotating rollers 211 with respect to the balance shaft 420, so that the rotor 10 is rotated The four locking bolts 442 provided between the pair of balance blocks 410 are held in the unlocked state and then the four locking bolts 412 So that the pair of balance blocks 410 are fixed and self-aligned.

A height adjusting unit 500 is installed at the lower end of the main body 100.

8 is a view showing a height adjusting unit according to the present invention.

Referring to FIG. 8, a plurality of mounting recesses 110 are formed in the bottom edge portion of the main body 100, to which the height adjusting portion 500 is mounted.

The height adjusting part 500 according to the present invention includes a height adjusting bolt 510 which is screwed through the upper end of the mounting groove 110 and is movable up and down according to the screw tightening direction, And a locking nut 520 which is fastened to an upper end of the height adjusting bolt 510 to regulate the elevating position.

That is, since the main body 100 is installed on the irregular concrete floor, when the rotor 10 is rotated, it can be inclined in the axial direction when one of them is lowered.

In this case, the height of the main body 100 can be adjusted by raising and lowering the main body 100 at a plurality of lower positions of the main body 100 through the rotation of the height adjusting bolt 510.

1, the motor 220 according to the present invention is driven under the control of the control unit 600. [

The control unit 600 controls the rotational speed and the rotation stop of the pair of rotating rollers 211 through the driving of the motor 220. When the motor 220 reaches the set overload condition, Can be stopped.

One end and the other end of the rotor 10 of the rotor are seated to be rotatably supported by the drive shaft portion 1 and the follower shaft portion 2 and between one end and the other end of the rotor 10 of the rotor (10) is positioned between the drive shaft portion (1) and the follower shaft portion (2).

The main body 100 measures a distance value of the rotor 10 mounted on the pair of rotating rollers 211 and the side surface of the rotor 10 and transmits the measured distance value to the controller 600 A distance sensor 620 is installed.

The controller 600 may generate an alarm using an external alarm device (not shown) when the measured distance value reaches a predetermined reference distance value.

With this configuration, the integrity (nondestructive inspection) inspection of the blade root portion and the disk is performed in a state where the disassembled rotor is seated in the two main body portions.

At this time, on the basis of the distance value between the rotor and the side surface of the rotor 10 that is seated on the pair of rotating rollers 211, the alarm sound and the driving side rotating rollers 211 are automatically stopped The rotor is irregularly moved in the axial direction due to the unevenness in the level of the main body 100 and another reason and the interference between the rotor 10 which is the rotor and the main body 100 as the fixed body It is possible to effectively prevent the occurrence of damages of the parts due to the impact.

FIG. 9 is a view showing a configuration of a control unit according to the present invention, and FIG. 10 is a view showing a pendant according to the present invention.

Referring to FIG. 9, when the user touches "ROTOR RPM" on the screen of the control unit 600, the number of rotations of the rotor can be set, and the same value also appears in the pendant 610.

Referring to FIG. 10, the rotational direction and the rotor speed can be adjusted, and the same value is also indicated to the controller 600.

In addition, in the control unit 600, when the motor is overloaded with a set value of 16.5 A (110% of the rated current 15 A) and the both sides of the rotor close to the side of the drive shaft portion and the driven shaft portion, can do

11 shows the screen operation state in the control unit according to the present invention.

"A": Motor current value (A), "B": Motor speed (rmp), "C": You can adjust the rotor speed. Touch to display the setting screen, . Enter the number and press Enter to display the value.

"D": DRIVE Displays the left roller sensor position value (mm), "E": DRIVE right roller sensor position value (mm), "F": IDLE left roller sensor position value , "G": IDLE Displays the right roller sensor position value (mm). "H": Green lamp lights up when "MAIN" is selected as the operation mode. "N": REMOTE as the operation mode. "J": Motor overload occurs when "O" is turned counterclockwise (counterclockwise). "J": When motor is overloaded, "K": When the rotor is close to the rotor (40mm), the red lamp lights up. "Q": The red lamp lights up. "L": DRIVE SIDE comes into contact with the rotor (20mm). RED lights up when the IDLE SIDE and the rotor are close (40mm). "R": IDLE SIDE comes into contact with the rotor (20mm) The red lamp lights up in case of danger, "M" State or the motor stop signal is generated when the switch operating under the red lamp lights up, "S": the motor is stopped when the light in case of the following signals.

Referring to FIG. 10, in the case of a pendant (remote controller), "a" display window: Touch screen for controlling the rotation speed, "b" Rotor PRM: can control the rotor speed, You can speed up or slow down. Enter the number and press Enter to display the value.

"c" Push Button: Press the "c" Push Button: Press the "c" Push Button. The "d" Push Button (Clockwise), the red lamp lights up at the top.

According to the above-described structure and operation, the embodiment according to the present invention can be used for a shaft having a different length and diameter by adjusting the interval of the pair of rotating rollers. When rotating the rotor, So that the problem can be solved in the inclination of the facility.

Further, the embodiment according to the present invention can prevent interference between the rotor of the driven chain rotor and the fixture chain facility, thereby reducing the economic loss due to component damage.

Although specific embodiments of the turbine rotor seating apparatus of the present invention have been described above, it is apparent that various modifications can be made without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

It is to be understood that the foregoing embodiments are illustrative and not restrictive in all respects and that the scope of the present invention is indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

1:
2:
10: Rotor of the turbine
100:
200: roller portion
300:
400: balancing part
500:
600:

Claims (10)

A driving shaft portion on which one end of the rotor of the rotor is seated and rotates the rotor of the rotor in a state in which the width of the rotor is adjusted so as to correspond to the diameter of the one end of the rotor; And
And a driven shaft portion which is spaced apart from the drive shaft portion and which rotatably supports the other end of the rotor and which is interlocked with driving of the drive shaft portion,
The drive shaft portion
A main body supported by the ground;
A roller portion disposed on the main body portion and having a pair of rotating rollers for rotatably supporting one end of the rotor,
An interval adjusting unit installed on the main body to be positioned at a lower portion of the roller unit and configured to variably adjust an interval between the pair of rotating rollers,
A balancing portion disposed at a lower portion of the roller portion to maintain a balance of the roller portion,
And a height adjusting unit disposed at a lower end of the main body and adjusting the height,
The roller unit
A pair of roller cases in which the pair of rotating rollers are respectively disposed,
A motor for generating a rotational force,
A drive shaft for transmitting rotation force from the motor to the pair of rotation rollers to drive the pair of rotation rollers,
And a first support for rotationally supporting the drive shaft,
Wherein a plurality of mounting recesses are formed in the lower edge of the main body,
The height adjuster includes:
A height adjusting bolt which is screwed through the upper end of the mounting groove and is disposed so as to be able to move up and down according to a screw tightening direction;
And a locking nut coupled to an upper end of the height adjusting bolt at an upper end of the mounting groove to regulate an elevating position.
delete delete The method according to claim 1,
Wherein the interval adjusting unit comprises:
A second support provided on the main body to be disposed below the first support,
A pair of screw shafts disposed to correspond to each other on the second support and rotated by an external rotational force,
And a pair of handles provided at ends of each of the pair of screw shafts,
Wherein each of the pair of roller cases is connected to the pair of screw shafts and is horizontally moved according to a rotation direction of the pair of screw shafts so that the gap between the pair of roller shafts can be adjusted.
5. The method of claim 4,
Wherein the pair of roller cases are arranged so that a gap limiting axis is passed therethrough,
Wherein a gap between the pair of roller cases is limited by a pair of nuts disposed inside the pair of roller cases, so that a gap between the pair of roller cases is limited.
5. The method of claim 4,
The balance-
A pair of balance blocks disposed between the upper end of the main body and the second support,
A balance shaft disposed between the pair of balance blocks,
A plurality of balance springs disposed on both sides of the balance shaft along the longitudinal direction of the balance shaft and elastically supporting the pair of balance blocks,
And a plurality of balance plates installed around the pair of balance blocks to fix the pair of balance blocks,
Wherein each of the plurality of balance plates includes a plate body having four bolt mounting holes each having a curvature at four corners thereof, and a pair of balance blocks that are movable in the bolt mounting holes, And a plurality of locking bolts for fixing the periphery of the turbine rotor.
delete The method according to claim 1,
The motor is driven under the control of the control unit,
Wherein,
And controlling rotation speed and rotation stop of the pair of rotating rollers through driving of the motor,
And when the set overload condition is reached, stopping the driving of the motor.
9. The method of claim 8,
One end and the other end of the rotor of the rotor are seated to be rotatably supported by the drive shaft portion and the follower shaft portion,
Wherein a rotor between one end and the other end of the rotor of the rotor is positioned between the drive shaft portion and the follower shaft portion,
In the main body portion,
A distance sensor for measuring the distance value between the rotor and the side surface of the rotor that is seated on the pair of rotating rollers and transmitting the measured distance value to the controller,
Wherein the controller generates an alarm using an external alarm when the measured distance value reaches a preset reference distance value.
The method according to claim 1,
On the periphery of the pair of rotating rollers,
And a surface layer of a predetermined thickness formed of macarite is formed on the surface of the turbine rotor.

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