KR101863993B1 - Work stnad for grinding rotor slot of turbine - Google Patents

Work stnad for grinding rotor slot of turbine Download PDF

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Publication number
KR101863993B1
KR101863993B1 KR1020150066533A KR20150066533A KR101863993B1 KR 101863993 B1 KR101863993 B1 KR 101863993B1 KR 1020150066533 A KR1020150066533 A KR 1020150066533A KR 20150066533 A KR20150066533 A KR 20150066533A KR 101863993 B1 KR101863993 B1 KR 101863993B1
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KR
South Korea
Prior art keywords
guide rod
lower plate
gear
rotor
turbine
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Application number
KR1020150066533A
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Korean (ko)
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KR20160133690A (en
Inventor
허두권
최창식
Original Assignee
두산중공업 주식회사
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Priority to KR1020150066533A priority Critical patent/KR101863993B1/en
Publication of KR20160133690A publication Critical patent/KR20160133690A/en
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Publication of KR101863993B1 publication Critical patent/KR101863993B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
    • F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

The present invention relates to a lower plate, An upper plate spaced upward from the lower plate; A guide rod rotatably and vertically installed at a lower portion of the upper plate; And a lifting / lowering drive unit installed on the lower plate to move up and down the guide rod. Since the upper plate is rotated integrally with the guide rod to move up and down, And to improve the quality of the rotor by minimizing damage to the rotor and the rotor slot.

Description

Technical Field [0001] The present invention relates to a turbine rotor slot for turbine,

[0001] The present invention relates to a turbine rotor slotted work platform, and more particularly, to a turbine rotor slotted work platform for a turbine, and more particularly, And more particularly, to a rotor slot finishing workbench for a turbine capable of facilitating an operator's convenience during finishing work.

Generally, a steam turbine is a device for converting a bucket having vanes with high-temperature and high-pressure steam generated from a large-capacity boiler for a power plant into a rotational force as kinetic energy. Generally, the steam turbine is divided into a high pressure turbine, a medium pressure turbine, Maximize.

BACKGROUND OF THE INVENTION [0002] Generally, a steam turbine includes a casing that forms the outer shape and a skeleton of a turbine, and a rotor that is rotatably installed in the casing.

Generally, each bucket has a dovetail formed at the radially inner end of the vane, vane.

Depending on the manner in which the dovetail is coupled to the rotor, generally the dovetail can be broadly divided into a tangential entry, an axial entry, a pinned finger, and a key shaft.

Thus, the rotor of the turbine has a slot to which the dovetail is coupled, and the rotor slot for the turbine is finishing through the finishing operation to minimize machining errors between the slots.

Generally, the rotor slot mapping operation for the turbine is performed in the rotor slot mapping workbench for the turbine.

However, in the conventional rotor slot mapping workbench for a turbine, the table on which the rotor is mounted is not rotated. As a worker moves around the rotor slot mapping workbench for the turbine, the work time is increased by the movement of the worker, There is a problem of increasing the slot operation cost.

In addition, since the height of the table on which the rotor is mounted is not adjusted, the conventional slot-slotted worktable for turbines has a problem that an operator working for a long period of time works in an uncomfortable posture, inconveniences the operator and causes musculoskeletal disorders There was a problem.

Furthermore, since the table and the height of the table are not adjusted, damage to the surface of the rotor due to sucking or scratching occurs in the fine rotor slot mapping operation. Thus, the quality of the rotor slot There was a problem that it was deteriorated.

Korean Patent Laid-Open Publication No. 10-2013-0012788

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide an apparatus and a method for mounting a guide rod, which is rotatable and vertically installed on a lower portion of an upper plate, The upper plate is rotated at an angle equal to the angle of the rotor slot for the turbine by the gear box portion, so that the operator adjusts the mounter to match his or her height, And to improve the quality of the rotor and the rotor slot by minimizing the damage to the rotor, and to provide a rotor slotting workbench for a turbine.

In order to accomplish the object of the present invention, a rotor slot mast for a turbine according to the present invention comprises a lower plate; An upper plate spaced upward from the lower plate; A guide rod rotatably and vertically installed at a lower portion of the upper plate; And an up-and-down driving unit installed on the lower plate to move the guide rod up and down. The upper plate may be rotated together with the guide rod or moved up and down.

Further, in another embodiment of the rotor slot mapping table for a turbine according to the present invention, the rotor slot mapping table for the turbine includes a casing installed on the outer peripheral surface of the upper portion of the guide rod; A plurality of support frames vertically installed on an upper portion of the lower plate so as to be parallel to the guide rods; And a plurality of connection brackets connecting the respective support frames to the casing.

In another embodiment of the rotor slot mapping table for a turbine according to the present invention, the rotor slot mapping table for the turbine further comprises a plurality of height adjustment units mounted on the lower plate for adjusting the height of the lower plate .

Further, in another embodiment of the rotor slot masonry workbench according to the present invention, the rotor slot masonry workbench for the turbine includes a fixed unit mounted on the casing for preventing rotation of the upper plate during mating operation of the rotor slot, ; ≪ / RTI >

Further, in another embodiment of the rotor slot mating workbench for a turbine according to the present invention, the guide rod of the rotor slot mating workbench for turbine has threads formed on the outer peripheral surface along the longitudinal direction of the guide rod, A gear engaged with the thread; A rotating shaft connected to one side of the gear; And a handle formed at one end of the rotary shaft, wherein the guide rod can be raised and lowered by the rotation of the handle.

Further, in another embodiment of the rotor slot masonry workbench for a turbine according to the present invention, the guide rod of the rotor slot masonry workbench for turbine has a thread formed on the outer circumferential surface along the lengthwise direction of the guide rod, A gear engaged with the thread; A rotating shaft connected to one side of the gear; And a driving motor rotating integrally with the rotation shaft, wherein the guide rod can be moved up and down according to the operation of the driving motor.

Further, in another embodiment of the rotor slot mast workbench for a turbine according to the present invention, the plurality of support frames of the rotor slot mast workbench for the turbine may each be formed of a piston cylinder.

Further, in another embodiment of the rotor slot masonry workbench according to the present invention, the plurality of support frames of the rotor slot masonry workbench for turbine are vertically installed on the upper portion of the lower plate so as to have a constant angle around the guide rod .

Further, in another embodiment of the rotor slot masonry workbench for a turbine according to the present invention, a plurality of support frames of the rotor slot masonry workbench for turbine are vertically arranged on the upper part of the lower plate so as to have an angle of 90 degrees about the guide rod Dogs can be installed.

Further, in another embodiment of the rotor slot masonry workbench for a turbine according to the present invention, the plurality of height adjustment units of the rotor slot masonry workbench for the turbine are arranged so as to have a predetermined angle with respect to the guide rod Can be installed on the lower plate.

Further, in another embodiment of the rotor slot mapping table for a turbine according to the present invention, the plurality of height adjustment units of the rotor slot mapping table for the turbine each include a bolt portion installed through the lower plate adjacent to each support frame; And a washer portion inserted through the bolt portion at an upper portion of the lower plate to fix the bolt portion.

Further, in another embodiment of the rotor slot mapping table for a turbine according to the present invention, the fixing unit of the rotor slot mapping table for the turbine may be formed of a bolt member installed through the casing.

In another embodiment of the rotor slot masonry workbench for a turbine according to the invention, the tip of the bolt member in contact with the guide rods of the rotor slot masonry workbench for the turbine may be copper coated.

Further, in another embodiment of the rotor slot masonry workbench according to the present invention, the upper plate of the rotor slot masonry workbench for turbine further includes a gear box part installed at the center of the upper plate to be connected to the guide rod .

Further, in another embodiment of the rotor slot masonry workbench for a turbine according to the present invention, the gear box portion of the upper plate of the rotor slot masonry workbench for turbine is connected to the upper portion of the guide rod and connected to the sun gear; A plurality of planetary gears mounted so as to be engaged with the sun gear; And a ring gear mounted to be meshed with the planetary gear.

Further, in another embodiment of the rotor slot masonry workbench for a turbine according to the present invention, the gears of the sun gear, the planetary gears and the ring gear of the gear box of the upper plate of the rotor slot mover workbench for the turbine, And the upper plate may be rotated by an angle between the slots of the rotor at the time of rotation.

The rotor slotting work table for a turbine according to the present invention is characterized in that a guide rod, which is rotatable and vertically installed at a lower portion of the upper plate, can be raised and lowered by a lifting / lowering drive unit and rotated according to an angle of a rotor slot for a turbine. It is possible to minimize the working time due to the movement, thereby increasing the total working time and reducing the working cost.

Further, since the height of the upper plate on which the rotor is mounted is adjusted by the guide rods raised and lowered by the raising and lowering drive unit, the worker can adjust the mast work platform to fit the worker, And it is possible to minimize the fatigue of the worker and to prevent the musculoskeletal diseases and the like that may occur to the worker.

Further, as the upper plate is rotated and its height is controlled, the turbine rotor slotting workbench according to the present invention improves the quality of the rotor and the rotor slot by minimizing damage to the rotor surface or slot according to the reduction of the working time of the rotor slot There is an effect that can be made.

In addition, the rotor slot masonry workbench for the turbine according to the present invention prevents the upper plate from rotating during the mating operation of the rotor slot after the upper plate is rotated by the rotor slot angle by the fixed unit, It is possible to prevent a safety accident in advance.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows a front view of a rotor slot masonry workbench for a turbine according to an embodiment of the invention.
Figure 2 shows a side view of a rotor slot masonry workbench for a turbine in accordance with an embodiment of the present invention.
3 is a cross-sectional view taken along the line AA in Fig.
Figure 4 shows a side cross-sectional view of a rotor slot masonry workbench for a turbine in accordance with another embodiment of the present invention in Figure 3;
5 shows a top view of a rotor slot masonry workbench for a turbine according to an embodiment of the invention.
6 is a plan view of a gear box installed on an upper plate of a rotor slot mating workbench for a turbine according to an embodiment of the present invention.

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals are used to refer to like elements throughout.

FIG. 1 shows a front view of a rotor slot masonry workbench according to an embodiment of the present invention, and FIG. 2 shows a side view of a rotor slot masonry workbench for a turbine according to an embodiment of the present invention. FIG. 3 shows a cross-sectional view taken along line A-A of FIG. 2, and FIG. 4 shows a side cross-sectional view of a rotor slot miter work platform for a turbine according to another embodiment of the present invention in FIG. FIG. 5 is a plan view of a rotor slot masonry workbench according to an embodiment of the present invention, and FIG. 6 is a plan view of a gear box installed on an upper plate of a rotor slot masonry workbench according to an embodiment of the present invention .

The definitions of terms used below are as follows. "Upper" or "upper" means relative to the ground relative to the vertical direction of the ground between the same or other members.

"Lower" means a side opposite to the "upper ", i.e., a side relatively closer to the ground in the vertical direction of the ground between the same member or other members.

 1 to 6, a description will be given of a rotor slot masonry workbench 1 for a turbine according to the present invention.

1 to 3, a rotor slot masonry workbench 1 for a turbine according to the present invention includes a lower plate 100, an upper plate 200, a guide rod 300, and an up / down driving unit 400, Lt; / RTI >

The lower plate 100 is installed on the ground. According to a preferred embodiment of the present invention, the lower plate 100 is formed of a disc-shaped metal material.

The upper plate 200 is installed above the lower plate 100 and spaced apart therefrom. That is, the upper plate 200 is supported by the guide rod 300 so as to be parallel to the lower plate 100, and is installed upwardly spaced from the lower plate 100.

Although not limited thereto, the upper plate 200 is formed of a disc-shaped metal material. The rotor is seated on the upper end of the upper plate 200.

The guide rod 300 is rotatably and vertically installed at the lower portion of the upper plate.

An upper portion of the guide rod 300 is rotatably connected to the upper plate 200 by bearings and a lower portion of the guide rod 300 is connected to the lower plate 100. [

If necessary, the lower portion of the guide rod 300 may be rotatably connected to the lower plate 100 by a bearing.

A thread 310 is formed on the outer circumferential surface along the longitudinal direction of the guide rod 300.

The up-and-down driving unit 400 is installed on the upper portion of the lower plate 100 to move the guide rod 300 up and down.

 The guide rod 300 is lifted and lowered by the lifting and lowering drive unit 400 so that the upper plate 200 connected to the upper portion of the guide rod 300 is lifted and lowered integrally with the guide rod 300.

2 and 3, the up / down driving unit 400 according to an embodiment of the present invention includes a gear 410, a rotating shaft 420, and a handle 430.

The gear 410 is engaged with the thread of the guide rod 300.

The rotating shaft 420 is connected to one side of the gear.

A handle 430 is connected to one end of the rotary shaft.

Accordingly, when the operator rotates the handle 430, the rotation shaft 420 rotates and the thread 310 of the guide rod 300 moves by the gear 410 rotating at the same time as the rotation shaft 420, 300 are moved up and down.

The height of the guide rod 300 is manually adjusted to reduce the maintenance cost of the rotor slotting workbench.

4, the up / down drive unit 400 according to another embodiment of the present invention includes a gear 410, a rotation shaft 420, and a drive motor 440.

The gear 410 is engaged with the thread of the guide rod 300.

The rotating shaft 420 is connected to one side of the gear.

A drive motor 440 is connected to one end of the rotary shaft. The driving motor 400 may be formed of a servo motor.

Accordingly, when the operator drives the drive motor 440, the thread 310 of the guide rod 300 is moved by the gear 410 rotating the rotation axis 420 and rotating simultaneously with the rotation axis 420, 300 are moved up and down.

When the guide rod 300 is rotated, the upper plate 200 connected to the upper portion of the guide rod 300 rotates integrally with the guide rod 300.

As described above, according to the present invention, the guide slot of the rotor slot masonry workbench is rotatably and vertically installed on the lower portion of the upper plate by the elevating and lowering drive unit and is rotated according to the angle of the rotor slot for the turbine It is possible to minimize the work time due to the movement of the worker, thereby increasing the total work time and reducing the work cost.

1 to 4, a rotor slot mast worktable 1 for a turbine according to an embodiment of the present invention includes a casing 500, a plurality of support frames 600, and a plurality of connection brackets 700 ).

The casing 500 is installed on the outer peripheral surface of the upper portion of the guide rod 300. That is, the guide rod 300 is installed on the outer circumferential surface of the upper portion of the guide rod 300 through fastening means such as bolts, welds, and rivets in a state of being separated from the upper frame 200.

A plurality of support frames 600 are vertically installed on the upper portion of the lower plate 100 so as to be parallel to the guide rods 300. Each support frame 600 is mounted on the upper portion of the lower plate 100 through fastening means such as bolts, welds, or rivets.

According to an embodiment of the present invention, the plurality of support frames 600 are vertically installed on the upper plate 100 so as to have a constant angle with respect to the guide rod 300.

That is, when two or three support frames 600 are provided, the two support frames 600 are arranged on the upper portion of the lower plate 100 so as to have an angle of 180 degrees or 120 degrees around the guide rods 300 Respectively.

As shown in FIG. 5, according to a preferred embodiment of the present invention, four support frames 600 are vertically installed at the upper portion of the lower plate so as to have an angle of 90 degrees around the guide rod 300.

As the upper frame 200 is mounted on the upper portion of the lower plate 100 so that the support frame 600 has an angle of 90 degrees with respect to the upper frame 200, Can be prevented completely from being inclined.

It is possible to support the upper plate 200 and the load acting on the guide rod 300 during the warping operation of the rotor slot in a state where the rotor is mounted on the upper end of the upper frame 200 by the plurality of support frames 600 .

Although not necessarily limited, each support frame 600 is formed of a piston cylinder.

The support frame 600 supports the guide rod 300 when the guide rod 300 is lifted up and down by the lifting and lowering drive unit 400 as each support frame 600 is formed in the shape of a piston cylinder. The guide rod 300 can be stably supported while being raised and lowered simultaneously.

A plurality of connection brackets 700 connect the respective support frames 600 to the casing 500.

That is, one side of each connection bracket 700 is coupled to the casing 500 by fastening means such as bolts, rivets, and welding, and the other side of each connection bracket 700 is connected to the support frame 600 And is connected to the upper part.

Generally, the rotor for a turbine is heavy in weight due to its heavy weight. When the rotor rotates up and down the guide rod 300 with the rotor mounted on the upper plate 200 or rotates the upper plate 200, The guide rod 300 may be damaged or the upper plate 200 may be tilted in one direction so that the rotor mounted on the upper plate 200 may fall to the ground and cause serious injury to the operator.

As described above, in the rotor slot mast worktable according to the present invention, the support frames 600 are connected to the casing 500 by the respective connection brackets 700, It is possible to prevent the guide rod 300 from being damaged from the load of the rotor during the slotting operation of the rotor slot in the state where the guide rod 300 and the upper It is possible to support the plate 200 and prevent the rotor mounted on the upper plate 200 from falling to the ground.

Accordingly, it is possible to guarantee the work stability of the worker and to prevent human accidents in advance.

As shown in FIGS. 2 to 4, the rotor slot mating workbench 1 for a turbine according to an embodiment of the present invention further includes a plurality of height adjusting units 800 and a fixing unit 900.

A plurality of height adjustment units 800 are installed on the lower plate 100 to adjust the height of the lower plate 100.

That is, the plurality of height adjustment units 800 are installed on the lower plate 100 so as to have a constant angle around the guide rod 300 so as to be adjacent to the respective support frames 600.

As shown in FIG. 2, a plurality of height adjustment units 800 of the rotor slot mating workbench 1 for a turbine according to an embodiment of the present invention each include a bolt portion 810 and a washer portion 820.

The bolt portion 810 is installed through the lower plate 100 adjacent to each support frame 600.

The washer portion 820 is inserted through the bolt portion 810 at an upper portion of the lower plate 100 to fix the bolt portion 810.

As described above, in the rotor slot mast workbench 1 for a turbine according to the present invention, the height of each height adjusting unit 800 can be adjusted differently for each height adjusting unit 800 by a simple operation of rotating the bolt portion 810 Even when the environment of the workplace where the rotor slotting workbench for a turbine is installed is changed, the horizontal position of the lower plate 100 can be maintained, and finally, the upper plate 200 can be kept horizontal to prevent a safety accident .

In addition, the rotor slot masonry workbench 1 for a turbine according to the present invention is configured such that the height of the upper plate 200 is primarily adjusted by the guide rod 300 that is raised and lowered by the elevating and lowering drive unit 400, The height of the lower plate 100 can be adjusted through the height adjusting unit 800 so that the height of the upper plate 200 can be adjusted secondarily. Accordingly, it is possible to maximize the convenience of the operator by performing the finishing work after the operator adjusts the finishing work table to fit his or her height before performing the rotor slot mapping operation on the upper plate 200.

The fixed unit 900 is installed in the casing 500 to prevent the top plate 200 from rotating during the mapping operation of the rotor slot.

Although not limited thereto, the fixed unit 900 is formed of a bolt member installed through the casing 500.

In addition, the tip of the bolt member forming this fixed unit 900 is copper coated. When the bolt member is rotated in a predetermined direction, the bolt member is inserted into the through hole on one side of the casing 500 and comes into contact with the guide rod 300.

When the bolt member is rotated in the opposite direction, the bolt member is drawn out to the outside through the through hole on one side of the casing 500, so that the bolt member is not brought into contact with the guide rod 300.

As the tip of the fixing unit 900 formed by the bolt member is repeatedly brought into contact with the guide rod 300 and the tip of the bolt member is coated with copper to minimize the wear of the tip of the bolt member, ) Can be saved.

It is possible to prevent the upper plate 200 from being rotated by the fixing unit 900 after the upper plate 200 is rotated after the worker completes the finishing work of one rotor slot in the finishing work of the rotor slot.

Accordingly, it is possible to prevent the upper plate 200 from rotating, irrespective of the operator's intention during the rotor slotting operation, to prevent a safety accident, minimize damage to the rotor slot, and improve the quality of the rotor.

 6, the upper plate 200 of the rotor slot mating workbench 1 for a turbine according to an embodiment of the present invention further includes a gear box portion 210, A plurality of planetary gears 211, a plurality of planetary gears 212, and a ring gear 213.

The gear box portion 210 is inserted and connected to the guide rod 300 at the center of the upper plate 200.

That is, the gear box portion 210 is installed at the center of the upper plate 200, and the upper portion of the guide rod 300 is installed so as to coincide with the rotation axis of the gear box portion 210.

The sun gear 211 is connected to the upper portion of the guide rod 300 through the guide rod 300. That is, the upper portion of the guide rod 300 passes through the center of the sun gear 211 and is coupled by fastening means such as bolts, rivets, and welding.

A plurality of planetary gears 212 are installed so as to be in contact with the sun gear 211 and to be engaged with the planetary gear 213 to be described later. In FIG. 6, three planetary gears 212 are shown, but the present invention is not limited thereto.

The ring gear 213 is installed so as to be engaged with the planetary gear 213 while being inscribed.

The gear teeth of the sun gear 211, the plurality of planetary gears 212 and the ring gear 213 are formed to be equal to the angle between the slots of the rotor, As shown in FIG.

Accordingly, as the rotor is rotated according to the angle of the rotor slot for the turbine, the working time due to the movement of the worker is minimized, thereby increasing the total working time and reducing the work cost.

The present invention is not limited to the modifications shown in the drawings and the embodiments described above, but may be extended to other embodiments falling within the scope of the appended claims.

1: Rotor slot mapping table, 100: Lower plate,
200: upper plate, 210: gear box part;
211: sun gear, 212: planetary gear,
213: ring gear, 300: guide rod,
310: thread, 400: ascending / descending drive unit,
410: gear, 420: rotating shaft,
430: handle, 440: drive motor,
500: casing, 600: support frame,
700: connection bracket, 800: height adjustment unit,
810: bolt portion, 820: washer portion,
900: Fixed unit.

Claims (16)

A lower plate;
An upper plate spaced upward from the lower plate;
A guide rod rotatably and vertically installed at a lower portion of the upper plate;
A lifting / lowering drive unit installed on the lower plate for lifting / lowering the guide rod; And
And a plurality of height adjusting units installed on the lower plate to adjust the height of the lower plate,
The upper plate is rotated or elevated and lowered integrally with the guide rod,
A casing is provided on the outer peripheral surface of the upper portion of the guide rod,
Wherein the casing is provided with a fixed unit for preventing the upper plate from rotating during the mapping operation of the rotor slot for the turbine,
The plurality of height adjustment units are installed on the lower plate so as to have a predetermined angle with respect to the guide rod, and the height of the height adjustment unit is adjusted differently for each height adjustment unit, And the upper plate is maintained in the horizontal position.
The method according to claim 1,
A plurality of support frames vertically installed on an upper portion of the lower plate so as to be parallel to the guide rods; And
Further comprising: a plurality of connection brackets connecting the respective support frames to the casing.
delete delete The method according to claim 1,
Wherein the guide rod has threads formed on the outer circumferential surface along the longitudinal direction of the guide rod,
The up-down driving unit includes:
A gear engaged with the thread;
A rotating shaft connected to one side of the gear; And
And a handle formed at one end of the rotary shaft,
Wherein the guide rod is raised and lowered by rotation of the handle.
The method according to claim 1,
Wherein the guide rod has threads formed on the outer circumferential surface along the longitudinal direction of the guide rod,
The up-down driving unit includes:
A gear engaged with the thread;
A rotating shaft connected to one side of the gear; And
And a drive motor rotating integrally with the rotation shaft,
Wherein the guide rod is moved up and down according to the operation of the drive motor.
3. The method of claim 2,
Wherein the plurality of support frames are each formed of a piston cylinder.
8. The method of claim 7,
Wherein the plurality of support frames are vertically installed on an upper portion of the lower plate so as to have a predetermined angle with respect to the guide rod.
9. The method of claim 8,
Wherein the plurality of support frames are vertically installed on the upper portion of the lower plate at an angle of 90 degrees with respect to the guide rod.
9. The method of claim 8,
Wherein the plurality of height adjustment units are installed on the lower plate so as to be adjacent to each of the support frames.
11. The method of claim 10,
The plurality of height adjustment units may each include:
A bolt portion installed through the lower plate adjacent to each of the support frames; And
And a washer portion inserted through the bolt portion at an upper portion of the lower plate to fix the bolt portion.
9. The method of claim 8,
Wherein the fixed unit is formed of a bolt member installed through the casing.
13. The method of claim 12,
Wherein the tip of the bolt member in contact with the guide rod is copper coated.
9. The method of claim 8,
Wherein the upper plate further comprises a gear box part connected to the guide rod at the center of the upper plate. 15. The method of claim 14,
Wherein the gear box portion includes:
A sun gear connected through the upper portion of the guide rod;
A plurality of planetary gears mounted so as to be engaged with the sun gear; And
And a ring gear installed to be engaged with the planetary gear while being engaged with the planetary gear.
16. The method of claim 15,
Wherein the sun gear, the planetary gear, and the gear of the ring gear are formed to be the same as the angle between the rotor slots for the turbine, and the upper plate rotates by an angle between the slots of the rotor during rotation Rotor slotting workbench.






KR1020150066533A 2015-05-13 2015-05-13 Work stnad for grinding rotor slot of turbine KR101863993B1 (en)

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KR101863993B1 true KR101863993B1 (en) 2018-06-01

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Publication number Priority date Publication date Assignee Title
KR200251746Y1 (en) 2001-06-30 2001-11-16 삼성중공업 주식회사 Working Stand with the Lift Function

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KR101306416B1 (en) 2011-07-26 2013-09-12 한전케이피에스 주식회사 Jig for working dovetail of gas turbine blades

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KR200251746Y1 (en) 2001-06-30 2001-11-16 삼성중공업 주식회사 Working Stand with the Lift Function

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