KR102152983B1 - Manufacturing apparatus for turbine seal fin - Google Patents

Abstract

The present invention relates to an apparatus for manufacturing a seal pin for a turbine that can be adjusted according to the diameter of a seal pin with a single manufacturing device and can improve work efficiency by enabling a continuous process. , A roll supply unit provided on the side of the frame unit for winding and supplying the strip plate material in a roll form, a transfer roller provided on one front side of the frame unit to transfer the strip plate material supplied from the roll supply unit, and a front center of the frame unit A bending part for bending the strip plate material installed and conveyed by the conveying roller in a round shape, a bending part connected to the bending part at the front of the frame part to bend the curved strip plate material in the bending part, and a front side of the bending part It is provided and includes a precision processing unit for cutting the bent surface.

Description

Turbine seal pin manufacturing equipment{MANUFACTURING APPARATUS FOR TURBINE SEAL FIN}

The present invention relates to an apparatus for manufacturing a seal pin for a turbine, and more particularly, a seal for a turbine that can be adjusted according to the diameter of a seal pin with a single manufacturing apparatus and a continuous process is possible to improve work efficiency. It relates to a pin manufacturing apparatus.

When the turbine is operated, a working fluid flows inside the turbine, and by this flow of the working fluid, a rotor having a rotor blade on its outer edge, that is, a turbine shaft rotates to generate power.

If the working fluid deviates from the correct path during such a power generation process, vibration of the turbine shaft and a decrease in energy efficiency may occur.

Therefore, a seal for the turbine is adopted to prevent gas leakage by being assembled in the gas turbine, that is, to seal the minute gap between the stator and the rotor of the gas turbine. .

Conventionally, a non-contact labyrinth seal is widely used as a seal for a turbine. Turbine is a rotating machine that induces power generation by rotating the rotating body at high speed using high-temperature and high-pressure steam or gas, so the application of a contact-type seal that expects friction and power loss is not suitable. Therefore, conventionally, the above non-contact labyrinth seal is adopted as a seal between the rotating body of the turbine and the fixed body.

1A to 1B are diagrams showing a representative example of a conventional labyrinth seal, in which reference numeral 9 is a fixed wing mounted on the inner surface of a turbine casing, not shown, and fixed wing A seal ring 2 is elastically installed on the inner surface through an elastic body 11 such as a spring to receive force toward the turbine shaft. In the seal ring 2, a seal fin 4 having a structure integrally or separable with the seal ring extends toward the outer diameter of the turbine shaft 5, and in some cases, the turbine shaft; An uneven step 6 may be formed on the outer surface of 5) as shown in (b) of FIG. 1.

The structure of a non-contact type seal having the above basic structure is generally referred to as a labyrinth seal (15), and in order to increase the overall driving efficiency of the turbine, the tip of the seal fin 4 and the turbine By setting the gap 7 between the shafts 5 as small as possible, the amount of leakage of the working fluid 3 leaking through the gap 7 is minimized.

2 is a conceptual diagram for explaining a method of manufacturing a seal pin for a turbine in the prior art. As shown in the drawing, the seal pin 4 of the prior art is first made of a plate material 4a, which is a raw material, in a donut shape 4b using a press machine. ), and then formed by forming a knurling (4c) around the outer periphery of the plate material of the donut shape (4b).

At this time, the reason for forming the knurled ring 4c is to increase the frictional force between the members when the seal pin 4 is combined with the sealing ring 2 so that it is not easily separated during use.

However, the conventional seal pin manufacturing method as described above has a serious problem in that raw materials are wasted as the press method is used.

That is, if the conventional press method is followed, a scrap area that is not used in the plate material 4a as a raw material and is discarded remains, which causes waste of raw materials as well as increased manufacturing cost.

In addition, the conventional seal pin manufacturing method has a problem that the press processing device is expensive and the press process time is long, making mass production difficult.

Korean Patent Publication No. 10-0905435

Accordingly, the present invention has been conceived to solve the above problems, and its object is to shorten the manufacturing process and enable mass production by processing and manufacturing a strip-shaped plate with a seal pin in a continuous flow process in a single-piece manufacturing apparatus. It is to provide an apparatus for manufacturing seal pins for turbines that can reduce cost.

In addition, another object of the present invention is to provide an apparatus for manufacturing a seal pin for a turbine capable of reducing manufacturing cost by making it possible to adjust the bending portion and the bending portion according to the diameter of the seal pin, so that the size and shape are not restricted.

An apparatus for manufacturing a seal pin for a turbine according to an embodiment of the present invention for achieving the above object includes a frame part made of a plate shape, a roll supply part provided on a side of the frame part to wind up and supply a strip plate material in a roll form, A transfer roller provided on one front side of the frame unit to transfer the strip plate material supplied from the roll supply unit, a bending unit installed at the front center of the frame unit to bend the strip plate material transferred to the transfer roller in a round shape, and the frame unit It may include a bending processing unit that is connected to the bending unit on the front side and bends the curved strip plate material in the bending unit, and a precision processing unit that is provided on the front surface of the bending processing unit and cuts the bent surface.

The frame portion is made of a metal material in the shape of a square plate, and a plurality of first and second guide grooves may be formed to guide the bending portion and the bending portion.

The roll supply unit may include a support provided on the side of the frame part, and a take-up roller provided on the upper part of the support so that the belt plate can be wound and rotated.

The transfer roller may be installed in plural left and right at a predetermined interval so that the strip plate material supplied from the roll supply unit can be smoothly transferred.

The bending unit includes a first bending roller provided in front of the frame unit, a second bending roller provided at a lower position than the first bending roller at a predetermined interval on the right side of the first bending roller, and the first bending roller and the first bending roller. It may include a third bending roller provided at a lower portion between the two bending rollers to be able to adjust the interval.

The third bending roller may be connected to a first guide groove formed in the frame portion and guided up and down along the first guide groove to adjust the distance between the first and second bending rollers according to the diameter of the strip plate.

The bending portion includes a guide plate rotatably installed on the frame portion, a pressure roller installed on the front side of the guide plate to press the strip plate material that is curved in a round shape at the bending portion, and a pressure roller on the front side of the guide plate. It may include a bending member formed with a bending groove that is connected to bend the curved strip in a round shape in an L shape.

The guide plate may be rotated together with a pressure roller guided along the second guide groove by connecting a pressure roller to a second guide groove formed in the frame portion.

The precision processing unit may precisely cut and process the belt plate bent with a milling tool using the power of a motor.

As described above, according to the apparatus for manufacturing a seal pin for a turbine according to the present invention, a continuous flow process is provided by supplying a strip plate and installing a bending part and a bending part for bending in a round shape and bending in an L shape in one frame. It is possible to mass-produce and maximize work efficiency by shortening the waiting time and process, and by adjusting the distance between the bending part and the bending part, it is possible to increase work efficiency and product compatibility without being restricted by the diameter of the strip plate. It works.

1 is a cross-sectional view of a seal mounted on a conventional turbine device.
2 is a conceptual diagram illustrating a method of manufacturing a seal pin for a turbine according to the prior art.
3 is a perspective view showing an apparatus for manufacturing a seal pin for a turbine according to the present invention.
4 is a front view showing an apparatus for manufacturing a seal pin for a turbine according to the present invention.
5 is a plan view showing an apparatus for manufacturing a seal pin for a turbine according to the present invention.
6 is an enlarged perspective view showing a bending portion, a bending portion, and a precision processing portion of the apparatus for manufacturing a seal pin for a turbine according to the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to a specific embodiment, it is to be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

In the drawings, embodiments of the present invention are not limited to the specific form shown, but are exaggerated for clarity. Although specific terms have been used in the present specification, they are used for the purpose of describing the present invention, and are not used to limit the meaning or the scope of the present invention described in the claims.

In the present specification, the expression'and/or' is used to include at least one of the elements listed before and after. In addition, the expression'connected/combined' is used as a meaning including direct connection with other components or indirect connection through other components. In the present specification, the singular form also includes the plural form unless specifically stated in the phrase. In addition, components, steps, actions and elements referred to as'comprising' or'comprising' as used in the specification means the presence or addition of one or more other elements, steps, actions and elements.

In addition, expressions such as'first, second', etc. are used only for distinguishing a plurality of elements, and do not limit the order or other features between the elements.

In the description of the embodiments, each layer (film), region, pattern, or structure is "on" or "under" of the substrate, each side (film), region, pad or patterns. The description to be formed in "includes all those formed directly or through other layers. The criteria for the top/top or bottom/bottom of each layer will be described based on the drawings.

Hereinafter, an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view showing an apparatus for manufacturing a seal pin for a turbine according to the present invention, FIG. 4 is a front view showing an apparatus for manufacturing a seal pin for a turbine according to the present invention, and FIG. 5 is a manufacturing apparatus for a seal pin for a turbine according to the present invention. It is a plan view showing an apparatus, and FIG. 6 is an enlarged perspective view showing a bending portion, a bending portion, and a precision processing portion of the apparatus for manufacturing a seal pin for a turbine according to the present invention.

3 to 6, the seal pin manufacturing apparatus for a turbine according to the present invention includes a frame part 100, a roll supply part 200, a transfer roller 300, a bending part 400, and It includes a bending processing unit 500 and a precision processing unit 600.

The frame unit 100 is formed in a square plate shape, and is made of a metal material so that each device can be stably installed.

In addition, the frame portion 100 is to guide the bending portion 400 and the bending portion 500 in order to adjust the spacing between the bending portion 400 and the bending portion 500 according to the diameter of the strip plate 10 A plurality of first guide grooves 110 and second guide grooves 120 are formed to be able to do so.

At this time, the first guide groove 110 may guide the bending part 400, and the second guide groove 120 may guide the bending part 500.

The roll supply unit 200 may be provided on the side of the frame unit 100 to supply a strip plate 10 for manufacturing a seal pin.

The roll supply unit 200 may be supplied by winding the strip plate 10 in a roll shape.

In addition, the roll supply unit 200 is provided on the support 210 provided on the side of the frame unit 100 and the upper portion of the support 210 so that the strip plate 10 can be wound and rotated in a roll shape. It will include a take-up roller 220.

The transfer roller 300 is provided on one front side of the frame unit 100 to transfer the strip plate 10 supplied from the roll supply unit 200.

In addition, the transfer roller 300 is positioned on the same line as the winding roller 220 of the roll supply unit 200 so that the strip 10 can be smoothly transferred.

In addition, the transfer roller 300 is installed in plural left and right at regular intervals so that the strip 10 supplied from the roll supply unit 200 can be smoothly transferred.

At this time, it is preferable that each of the transfer rollers 300 are located on the same line.

The bending part 400 is installed in front of the frame part 100 to bend the strip plate 10 transferred from the transfer roller 300 in a round shape.

As shown in FIGS. 3 and 6, the bending part 400 includes a first bending roller 410, a second bending roller 420, and a third bending roller 430.

The first bending roller 410 is provided in front of the frame unit 100 to support the belt plate 10 transferred from the transfer roller 300.

The second bending roller 420 is provided on the right side of the first bending roller 410 at predetermined intervals to bend the strip plate 10 in a round shape.

In addition, the second bending roller 420 is provided at a lower position than the first bending roller 410.

That is, the second bending roller 420 is provided on the side of the first bending roller 410, but provided at a lower position than the first bending roller 410, and is conveyed along the first bending roller 410 (10) is bent in a round shape.

The third bending roller 430 is provided at a lower portion between the first bending roller 410 and the second bending roller 420 so that the strip plate 10 can be curved in a round shape.

In addition, the third bending roller 430 is connected to the first guide groove 110 formed in the frame unit 100 and is guided up and down along the first guide groove 110, and the diameter of the strip plate 10 You will be able to match it.

That is, since the third bending roller 430 is guided along the first guide groove 110, the spacing between the first and second bending rollers 410 and 420 can be adjusted, regardless of the diameter of the belt plate 10 It is possible to apply the strip plate 10 of different diameters.

The bending processing part 500 is connected to the bending part 400 on the front of the frame part 100 to bend the strip plate 10 curved in a round shape in the bending part 400 in an L shape.

As shown in FIG. 6, the bending part 500 includes a guide plate 510, a pressure roller 520, and a bending member 530.

The guide plate 510 is rotatably installed on the frame portion 100 according to the diameter of the strip plate 10.

In addition, the guide plate 510 is a pressure roller 520 connected to the second guide groove 120 formed in the frame portion 100 and guided along the second guide groove 120 and the pressure roller 520 Will be rotated together.

The pressing roller 520 is installed on the front side of the guide plate 510 to press the band plate 10 which is curved in a round shape in the bending part 400.

In addition, the pressure roller 520 is guided along the second guide groove 120 to rotate the guide plate 510.

The bending member 530 is connected to the pressure roller 520 on the front side of the guide plate 510 so as to bend the belt plate 10 bent in a round shape into an L shape.

The bending member 530 has a bending groove 531 formed on the inner surface thereof so that the belt plate 10 can be bent in an L shape.

The precision processing unit 600 is provided on the front of the bending processing unit 500 to precisely cut and process the bent surface bent in an L shape.

The precision processing unit 600 precisely cuts and processes the belt plate 10 bent in an L shape with the milling tool 620 using the power of the motor 610.

On the other hand, the frame unit 100 controls the operation of the roll supply unit 200, the bending unit 400, the bending processing unit 500, and the precision processing unit 600 to continuously perform the processing of the strip plate 10 A controller (not shown) is provided so that it can be used.

Looking at the operating state according to the seal pin manufacturing apparatus for a turbine of the present invention having the structure as described above is as follows.

The belt plate 10, which forms a seal pin on the side of the frame part 100, is wound in a roll shape on the winding roller 220 of the roll supply part 200 and passes through the transfer roller 300 to pass through the bending part ( 400).

And, when the take-up roller 220 is rotated, the first, second, and third bending rollers 410, 420, and 430 of the bending part 400 through the transfer roller 300 while the strip 10 is unwound from the take-up roller 220 As it passes through, it bends in a round shape.

In addition, the third bending roller 430 is installed in the frame unit 100 and is installed through the first guide groove 110 so that the third bending roller 430 is installed along the first guide groove 110. Since it can be guided up and down, the third bending roller 430 can be adjusted according to the diameter of the belt plate 10, so that the belt plate 10 of various sizes can be processed with one bending part 400. It can be.

Along with this, the belt plate 10 curved in a round shape by the bending portion 400 is bent in an L shape while passing through the bending processing portion 500.

At this time, the bending processing unit 500 can be rotated along the second guide groove 120, so that the bending processing unit 500 can be adjusted together with the bending unit 400, so that a single bending processing unit 500 has various sizes. It is possible to process the strip plate (10).

In addition, the belt plate 10 that is bent in an L shape by the bending processing part 500 is precisely cut and processed while holding the twist in the precision processing part 600, and the belt plate material processed from the precision processing part 600 ( 10) can be cut and manufactured into a seal pin.

Accordingly, the roll supply unit 200 for supplying the strip plate 10 to the frame unit 100, the bending unit 400 to bend in a round shape, and the strip plate 10 bent at the bending unit 400 are L-shaped. The belt plate 10 is processed according to a continuous flow process and manufactured as a seal pin by providing a precision processing unit 600 for precise cutting along with a bending processing unit 500 that is bent with a minimum process. It becomes possible.

As described above, the present invention is not limited to the specific preferred embodiment described above, and anyone with ordinary knowledge in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims It goes without saying that modifications are possible, and such modifications are within the scope of the claims.

10: strip plate 100: frame portion
110: first guide groove 120: second guide groove
200: roll supply unit 210: support
220: take-up roller 300: transfer roller
400: bending part 410: first bending roller
420: second bending roller 430: third bending roller
500: bending part 510: guide plate
520: pressure roller 530: bending member
531: bending groove 600: precision processing
610: motor 620: milling tool

Claims (9)

A frame part made of a plate shape;
A roll supply unit provided on the side of the frame unit to wind up and supply the strip plate material in a roll shape;
A transfer roller provided on one front side of the frame unit to transfer the strip plate material supplied from the roll supply unit;
A banding unit installed in the front center of the frame unit to bend the strip plate material transferred to the transfer roller in a round shape;
A bending processing unit connected to the bending unit in front of the frame unit to bend the curved strip plate material in the bending unit; And
A precision processing unit provided on the front side of the bending processing unit to cut the bent surface;
Including,
The frame part is made of a metal material in the form of a square plate, and a plurality of first and second guide grooves are formed so that the bending part and the bending part can be guided in order to adjust the spacing of the bending part and the bending part according to the diameter of the strip material. Become,
The roll supply unit,
A support provided on the side of the frame portion; And
A take-up roller provided on the upper part of the support so that the strip plate can be wound and rotated, and is positioned on the same line as the transfer roller so that the strip plate can be smoothly transferred to the transfer roller;
Including,
The bending part,
A first bending roller provided in front of the frame unit to support a strip plate material transferred from the transfer roller;
A second bending roller provided on the right side of the first bending roller at a position lower than the first bending roller at a predetermined interval so that the belt plate material conveyed along the first bending roller is bent in a round shape; And
A third bending roller provided at a lower portion between the first bending roller and the second bending roller so as to be able to adjust the gap so that the strip plate can be curved in a round shape;
Including,
The third bending roller is connected to a first guide groove formed in the frame part, and is guided up and down along the first guide groove, so that a belt plate having different diameters can be applied regardless of the diameter of the belt plate. ,2 Adjust the distance with the bending roller,
The bending part,
A guide plate rotatably installed on the frame portion according to the diameter of the strip plate;
A pressing roller installed on the front side of the guide plate to pressurize the strip plate which is curved in a round shape in the bending part; And
A bending member having a bending groove formed on the front side of the guide plate to bend the curved strip member in a round shape in an L shape in connection with a pressure roller;
Seal pin manufacturing apparatus for a turbine comprising a. delete delete The method of claim 1,
The conveying roller is a seal pin manufacturing apparatus for turbine, characterized in that a plurality of left and right is installed at regular intervals so that the strip plate material supplied from the roll supply unit can be smoothly transferred. delete delete delete The method of claim 1,
The guide plate is a seal pin manufacturing apparatus for a turbine, characterized in that the pressure roller is connected to the second guide groove formed in the frame portion and can be rotated together with the pressure roller guided along the second guide groove. The method of claim 1,
The precision processing unit is a seal pin manufacturing apparatus for a turbine, characterized in that for precisely cutting the belt plate bent with a milling tool using the power of a motor.

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