KR101410778B1 - Assembly jig apparatus for bucket of turbin rotor - Google Patents

Abstract

The present invention relates to a jig for assembling a bucket of a turbine rotor, and is a jig for assembling a bucket of a turbine rotor for coupling a bucket axially coupled to a rotor of the turbine rotor, And a lower jig support for supporting the lower jig, the upper jig and the lower jig being respectively provided at one side of the rotor with the rotary shaft of the turbine rotor interposed therebetween, And a support piece provided on the lower jig support body and supporting the lower jig support body. This makes it possible to quickly and easily assemble the bucket.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a turbine rotor bucket,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an assembly jig device for a bucket of a turbine rotor, and more particularly, to an assembly jig device for a bucket of a turbine rotor that can quickly and easily assemble a bucket.

As is well known, a turbine rotor is one type of apparatus capable of high-speed rotation using steam or gas.

Such a turbine rotor can be used in equipment for producing electric power, and in this case, it can be manufactured to have a large size and high accuracy as compared with a rotor device for an aircraft.

Since the turbine rotor is made large and must rotate at a high speed, the turbine rotor can be made of a metal member (for example, a titanium alloy) that is light and relatively small in thermal deformation.

FIG. 1 is a view showing an example of a conventional turbine rotor, FIG. 2 is an enlarged view of a combined state of a turbine rotor and a bucket of FIG. 1, FIG. 3 is a view showing an example of a bucket of FIG. 1 to be. 1, the turbine rotor 10 includes a rotating shaft 11, a rotor 20 extending radially in the rotating shaft 11, a bucket (not shown) coupled to the rotor 20, 30).

The turbine rotor 10 may include a plurality of disks or rotors 20 (hereinafter referred to as "rotor 20") spaced apart in the axial direction of the rotating shaft 11.

Meanwhile, as shown in FIG. 2, the bucket 30 may be coupled to the rotor 20.

The bucket 30 may include a wing portion 31 formed to be inclined in the axial direction and a projection 33 formed at one end of the wing portion 31.

The protrusions 33 may have a substantially triangular cross section with a reduced cross-sectional area along the protruding direction. The protrusions 33 may have protrusions 34 extending in the circumferential direction and grooves 35 that are reduced in the circumferential direction.

The outer circumferential region of the rotor 20 may be provided with the protrusion groove 22 so that the protrusion 33 of the bucket 30 can be inserted axially.

The protruding grooves 22 may be spaced along the circumferential direction.

The protrusion groove 22 may have a sectional shape corresponding to the sectional shape of the protrusion 33.

In this conventional turbine rotor, the projections 33 of the bucket 30 to be assembled to one side of the projecting grooves 22 of the rotor 20 are insertably arranged and pressed in the axial direction to form the projecting grooves 22 Therefore, it takes a lot of time and effort to assemble the bucket 30.

The wing portion 31 of the bucket 30 is formed to be inclined with respect to the axial direction so that when the protrusions 33 of the buckets 30 are not sequentially assembled, assembly is difficult due to interference of the wing portions 31 .

Accordingly, it is an object of the present invention to provide an assembly jig device for a bucket of a turbine rotor that can quickly and easily assemble a bucket.

In order to achieve the above object, the present invention provides an assembly jig for a bucket of a turbine rotor for coupling a bucket axially coupled to a rotor of a turbine rotor, An upper jig and a lower jig provided at one side of the rotor so as to be vertically in contact with each other with the rotation axis of the turbine rotor interposed therebetween; And a lower jig support for supporting the lower jig, wherein the lower jig support comprises: a lower jig support body; And a support piece provided on the lower jig support body to support the lower jig, wherein the lower jig support includes a height adjuster for adjusting a height of the support piece, and the height adjuster includes: And a lifting member disposed on one side of the lifting member so as to be able to move up and down, and the lifting member is detachably coupled to the lifting member.
Here, the lower jig support body includes a rectangular base; And a column disposed perpendicularly to the base.
Wherein the column is provided with a supporting unit for vertically guiding and supporting the elevating member, and the supporting unit comprises: a guide arranged in the elevating direction of the elevating member; And a guide receiving part for receiving the guide and performing relative movement.
The elevating member may be provided with a coupling hole to which a fixing member for fixing the supporting piece is coupled, and the coupling hole may be vertically spaced.
The height adjusting unit may further include an elevating unit for elevating the elevating member.
The elevating unit includes: a female screw provided on the elevating member; And a male screw member threadably coupled to the female screw portion.
The lower jig support main body may be configured to include a wheel that is rotatable in contact with an installation surface.
The lower jig support body may further include a leg for supporting the lower jig support body so that the wheel is spaced from the installation surface.
And an upper jig lifting member coupled to the upper jig to suspend the upper jig.

delete

delete

delete

delete

delete

delete

delete

delete

As described above, according to the embodiment of the present invention, the upper jig and the lower jig are vertically coupled with the rotary shaft of the turbine rotor interposed therebetween, and the lower jig support for supporting the lower jig is provided. It is possible to quickly and easily combine the bucket to be coupled to the bucket.

In addition, it is possible not only to stably support the lower paper disposed below the rotary shaft between the rotors of the turbine rotor, but also to easily adjust the height, so that the assembly of the upper and lower jigs can be quick and easy. Thereby, the overall bucket assembling time can be shortened.

1 is a view showing an example of a conventional turbine rotor,
FIG. 2 is an enlarged view of a state before coupling of a turbine rotor and a bucket of FIG. 1,
3 is a view showing an example of a bucket of FIG. 1,
4 is a front view of an assembly jig device for a bucket of a turbine rotor according to an embodiment of the present invention;
Figure 5 is a front view of the lower jig support of Figure 4,
Figure 6 is a perspective view of the support piece of Figure 5,
Figure 7 is a perspective view of the upper jigging member of Figure 4,
8 is a view showing the use state of the assembly jig device of the bucket of the turbine rotor of FIG.

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

The same or equivalent parts to those of the above-described embodiment and the drawings may be described with the same reference numerals being omitted for convenience of explanation. Further, redundant description of some configurations may be omitted.

4, an assembly jig device for a bucket of a turbine rotor according to an embodiment of the present invention includes a bucket 30 for coupling a bucket 30 axially coupled to a rotor 20 of a turbine rotor 10, The turbine rotor assembly according to any one of claims 1 to 3, wherein the turbine rotor (10) is provided with projecting grooves (112, 132) through which the projections (33) of the bucket (30) An upper jig 110 and a lower jig 130 which are in contact with each other in an up-and-down face-to-face contact with each other with a rotation axis 11 therebetween; And a lower jig support 150 for supporting the lower jig 130. The lower jig support 150 includes a lower jig support body 151, And a support piece 171 provided on the lower jig support body 151 to support the lower jig 130. [

For example, the upper jig 110 may have an arcuate shape convex upward, and the lower jig 130 may have an arc shape convex downward.

The upper jig 110 and the lower jig 130 may be formed with partial shaft receiving portions 114 and 134 so that the rotary shaft 11 of the turbine rotor 10 can be received therein. The upper jig 110 and the lower jig 130 may be annular when coupled.

The upper jig 110 and the lower jig 130 may be provided with a fastening part 140 for integrally connecting the upper jig 110 and the lower jig 130 to each other. The fastening part 140 may include a plurality of fastening bolts 144 that are coupled to the lower jig 130 through the upper jig 110, An inserting portion 142 formed through the upper jig 110 and a female screw 145 formed on the lower jig 130 so that the fixing bolt 144 can be screwed.

The upper jig 110 and the lower jig 130 may have protrusions 112 and 132 formed therein so that the bucket 30 can be inserted into the outer circumferential surface of the upper jig 110 and the lower jig 130, respectively.

Each of the protruding grooves 112 and 132 may be formed in an axial direction.

An eyepiece 147 may be coupled to the female screw 145 provided at the end of the lower jig 130 if necessary. Thus, the lower jig 130 can be easily lifted or moved by connecting a cable 105 of lifting equipment (for example, a crane) to the eye bolt 147.

The assembly jig of the bucket of the present turbine rotor may include a lower jig support 150 for supporting the lower jig 130.

5, the lower jig support base 150 may include a lower jig support base body 151 and a lower jig support base body 151. The lower jig support base 150 may include a lower jig support base body 151, (171).

The lower jig support main body 151 may include a base 153 and a column 161 disposed perpendicularly to the base 153, for example.

The base 153 may be constituted by, for example, a plurality of frames arranged in the horizontal direction and the vertical direction.

The base 153 may have a substantially rectangular shape.

The base 153 may be provided with a plurality of legs 155 for supporting the base 153 away from the floor.

The legs 155 may be screwed to the base 153.

The leg 155 has a male screw portion 156. The base 153 may be provided with a female screw portion 154 so that the male screw portion 156 of the leg 155 can be screwed.

The legs 155 can be moved up and down with respect to the base 153.

The base 153 may include a plurality of wheels or wheels 157 (hereinafter referred to as "wheels 157"). Thus, the movement of the base 153 can be facilitated. The wheel 157 may be provided at each corner of the base 153. That is, when the base 153 is moved, the legs 155 are moved upward to come in contact with the mounting surface of the wheel 157, and after the movement, 155 may protrude downward.

A column 161 may be provided on the upper surface of the base 153 so as to protrude upward. Here, the height and the number of the columns 161 can be appropriately adjusted.

The columns 161 may be spaced apart from each other along the longitudinal direction of the base 153.

A connection portion 163 for connecting the column 161 may be provided between the columns 161.

The lower jig support 150 may include a height adjuster 180 for adjusting the height of the support piece 171. [

The height adjuster 180 may include an elevating member 181 that is vertically movable on one side of the column 161.

The elevating members 181 may be disposed on both sides of the column 161, respectively.

The elevating member 181 may have a length longer than the width.

The elevating member 181 may have a substantially rectangular cross section.

The supporting piece 171 may be detachably coupled to the elevating member 181.

The elevating member 181 may be provided with a coupling hole 183 so that a fixing member 185 for fixing the supporting piece 171 can be coupled. The fixing members 185 may be configured as a pair.

The fixing member 185 may be implemented with a fixing bolt 186 and a nut 187. [

The elevating member 181 may be provided with a plurality of pairs of coupling holes 183 so as to be vertically spaced apart therefrom. Accordingly, the height of the support piece 171 can be adjusted.

Meanwhile, the column 161 may be provided with a support unit 191 for vertically guiding and supporting the elevating member 181.

The support unit 191 includes a guide 193 disposed in the ascending and descending direction of the elevation member 181 and a guide accommodating portion 195 accommodating the guide 193 and relatively moving As shown in FIG.

More specifically, the guide receiving portion 195 may be formed on one side of the elevating member 181, and the guide 193 may be disposed on one side of the column 161 in the vertical direction have.

The guide 193 may be formed in a circular bar shape, for example.

The guide receiving portion 195 may include a cylindrical receiving hole 196 to allow the guide 193 to be inserted and to move relative to the guide receiving portion 195. Here, the cross section of the guide 193 and the receiving hole 196 may have a polygonal shape.

The height adjusting unit 180 may include an elevating unit 201 for elevating the elevating member 181.

The elevating unit 201 includes a female screw portion 203 provided on the elevating member 181 and a male screw member 205 screwed to the female screw portion 203 and relatively moving. .

The female screw portion 203 may be formed at the lower end of the lifting member 181.

For example, one end of the male screw member 205 may be threadedly engaged with the female screw 203 and the other end thereof may be coupled to the base 153 in a relatively rotatable manner. Thus, when the male screw member 205 is rotated in the home position, the elevating member 181 can be moved up and down with respect to the male screw member 205. [

The base 153 may be provided with a male screw member supporting portion 207 which can rotate at one end of the male screw member 205 and which supports the movement of the male screw member 205 in the axial direction.

The male screw member 205 may be provided with a tool engagement portion 206 so that the tool can be engaged. The tool engagement portion 206 may be configured to have a flat surface on the outer surface of the male screw member 205, for example. For example, the tool engagement portion 206 may be configured to have a rectangular cross section or a hexagonal cross section to have a plurality of flat surfaces so that a tool (e.g., a spanner, a pliers, etc.) can be engaged.

6, the support piece 171 may have a contact surface 173 so as to be in contact with the engagement surface of the lower jig 130. As shown in FIG.

A coupling surface 136 having a predetermined radius of curvature may be provided on one side of the lower jig 130. The engagement surface 136 may be provided with a plurality of female threads 138.

The support pieces 171 may be separated from each other on both sides of the lower jig 130 and may be coupled to each other.

A penetrating portion 175 may be provided on one side of the contact surface 173 of each support piece 171.

The penetrating portion 175 may be formed with a coupling portion 176 through which a fixing bolt 177 screwed to the lower jig 130 may be coupled. The coupling portions 176 may be formed of a plurality of coupling portions. The engaging portions 176 may be spaced apart from each other in the circumferential direction.

The assembly jig of the bucket of the turbine rotor may include an upper jig lifting member 220 coupled to the upper jig 110 to suspend the upper jig 110.

3 and 7, the upper jigg lifting member 220 may include a substantially triangular body 221 and a lifting hook 231 connected to lifting equipment such as a crane.

A contact surface 223 may be provided on one side of the body 221 so as to be in contact with the mating surface 116 of the upper jig 110.

A coupling surface 116 having a predetermined radius of curvature may be formed at the back (rear) of the protrusion groove 112 along the thickness direction of the upper jig 110. [

The contact surface 223 may be an arc-shaped curved surface so as to be in surface contact with the engagement surface 116 of the upper jig 110.

A penetrating portion 225 may be formed on one side of the contact surface 223.

The perforations 225 may be formed of a plurality of perforations.

Each of the through holes 225 may be formed with a coupling portion 226 through which a plurality of fixing bolts 227 coupled to the upper jig 110 may be coupled.

With this configuration, when the bucket 30 is to be assembled to the turbine rotor 10 using the assembly jig device of the bucket of the turbine rotor of this embodiment, the support piece 171 is separated from the elevation member 181 So that the lower jig 130 can be coupled to the lower jig 130.

An eye bolt 147 may be coupled to the lower jig 130 for movement.

When the supporting piece 171 is coupled to the lower jig 130, a lifting device such as a crane may be connected to the eye bolt 147 so that the lower jig 130 may be moved to one side of the lower jig supporting part 150 .

The lower jig 130 may be coupled to the lowest position of the elevating member 181. This is to allow the lower jig 130 to easily pass under the rotary shaft 11 of the turbine rotor 10 so as to be disposed below the turbine rotor 10 to which the bucket 30 is to be coupled. Here, the height of the support piece 171 can be appropriately adjusted.

Meanwhile, the upper jig lifting member 220 may be coupled to one side of the upper jig 110.

The upper jig 110 may be moved to the upper side of the turbine rotor 10 to which the bucket 30 is to be assembled by lifting equipment such as a crane.

The buckets 30 may be coupled to the upper jig 110 and the lower jig 130 before the turbine rotor 10 is coupled with the rotary shaft 11 of the turbine rotor 10 through the respective projecting grooves 112 and 132. The bucket coupling operation of the upper jig 110 and the lower jig 130 may be performed at an appropriate place to facilitate bucket coupling. This can significantly shorten the bonding operation time of the bucket 30, the upper jig 110, and the lower jig 130.

8, the upper jig 110 and the lower jig 130 may be respectively disposed on one side (for example, the left side in the drawing) of the rotor 20 to which the bucket 30 is to be assembled have.

A plurality of rotors 20 and 40 may be formed on the turbine rotor 10 so as to be spaced along the axial direction.

Each of the rotors 20 and 40 formed on the turbine rotor 10 may be configured such that different types of buckets 30 are coupled to each other. For example, the rotor 20 to which the present invention is applied may be provided with a projection groove 22 along the axial direction, and one side or both sides of the rotor 20 to which the present invention is applied may include, for example, A rotor 40 having a protruding groove 42 formed to be curved with respect to the rotor 40 may be provided.

When the bucket 30 is coupled to the upper jig 110 and the lower jig 130, the upper jig 110 is lifted by a lifting device such as a crane to one side of the rotor 20 to which the bucket 30 is to be coupled Can be disposed in the upper region.

The lower jig 130 may be supported by the lower jig support 150 and moved to the lower side of the upper jig 110.

The position of the upper jig 110 is adjusted so that the rotary shaft 11 of the turbine rotor 10 is received in the partial shaft receiving portion 114 of the upper jig 110, The lower jig 130 may be disposed or positioned. At this time, the leg 155 may be downwardly protruded to support the lower jig support 150 by the legs 155. Accordingly, the movement of the lower jig support 150 can be suppressed and stably supported.

The lower jig 130 may be moved upward by operating the elevating unit 201 so that the lower end surface of the upper jig 110 and the upper end of the lower jig 130 are brought into contact with each other.

When the upper jig 110 and the lower jig 130 are in contact with each other, the fixing bolt 144 is inserted into the inserting portion 142 of the upper jig 110 to be engaged with the female thread 145 of the lower jig 130 . At this time, the protrusions 112 and 132 of the upper and lower jigs 110 and 130 can be exactly aligned with the protrusions 22 of the rotor 20 of the turbine rotor 10.

Separates the lower jig support 150 from the lower jig 130 and moves the lower jig support 150 to one side of the turbine rotor 10. At this time, the lower jig support 150 may be supported by the wheel 157. As a result, the lower jig support 150 can be smoothly moved.

Each of the buckets 30 coupled to the upper jig 110 and the lower jig 130 is pressed in an axial direction in order so that the buckets 30 coupled to the jigs 110, And is sequentially moved and inserted into the corresponding projection groove 22 of the rotor 20. As a result, the bucket 30 can be assembled quickly and easily.

When the upper and lower jigs 110 and 130 are moved and inserted into the corresponding rotor 20, the lower jig support 150 can be positioned below the lower jig 130 have.

When the lower jig support 150 and the lower jig 130 are coupled, the upper jig 110 and the lower jig 130 may be disengaged from each other.

When the upper jig 110 and the lower jig 130 are disengaged from each other, the upper jig 110 is moved upward to be separated from the rotary shaft 11 of the turbine rotor 10, Can be moved away from the rotary shaft (11) of the turbine rotor (10) by using the rotary shaft (157).

The foregoing has been shown and described with respect to specific embodiments of the invention. However, the present invention may be embodied in various forms without departing from the spirit or essential characteristics thereof, so that the above-described embodiments should not be limited by the details of the detailed description.

Further, even when the embodiments not listed in the detailed description have been described, it should be interpreted broadly within the scope of the technical idea defined in the appended claims. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

10: Turbine rotor 11:
20: rotor 22, 112, 132:
30: bucket 31: wing portion
33: projection 105: cable
110: upper jig 114, 134:
116, 136: coupling surface 118, 145:
130: lower jig 140: fastening part
142: insertion portion 144: fixing bolt
150: lower jig support 151: lower jig support body
153: Base 155: Leg
157: wheel 171:
180: height adjusting portion 181: elevating member
183: coupling hole 191: support unit
193: guide 195: guide receptacle
196: receiving hole 201: elevating unit
203: female thread portion 205: male thread member
206: tool engaging portion 220: upper surface drawing member
221: Body 231: Lifting ring

Claims (9)

An assembly jig device for a bucket of a turbine rotor for coupling a bucket axially coupled to a rotor of a turbine rotor,
An upper jig and a lower jig which are respectively provided on one side of the rotor with a rotation axis of the turbine rotor interposed therebetween so as to be in vertical contact with each other; And
And a lower jig support for supporting the lower jig,
The lower jig support includes:
A lower jig support body; And
And a support piece provided on the lower jig support body to support the lower jig,
The lower jig support includes a height adjuster for adjusting a height of the support member,
Wherein the height adjusting portion includes a lifting member that is vertically movable on one side of the lower jig supporting base body,
Wherein the support member is detachably coupled to the lifting member. The method according to claim 1,
The lower jig support body includes a rectangular base; And
And a column disposed perpendicularly to the base. 3. The method of claim 2,
Wherein the column is provided with a supporting unit for vertically guiding and supporting the elevating member,
The support unit includes: a guide arranged in a direction of elevation of the elevation member; And
And a guide receiving portion for receiving the guide and performing a relative movement therebetween. The method according to claim 1,
Wherein the elevating member is provided with a coupling hole to which a fixing member for fixing the supporting piece is coupled, and the coupling hole is vertically spaced. The method according to claim 1,
Wherein the height adjuster further comprises a lift unit for lifting the lift member. ≪ RTI ID = 0.0 > 18. < / RTI > 6. The method of claim 5,
The elevating unit includes: a female screw provided on the elevating member; And a male screw member threadably engaged with the female screw portion. 7. The method according to any one of claims 1 to 6,
Wherein the lower jig supporting base body includes a wheel that is rotatable in contact with the mounting surface. 8. The method of claim 7,
Wherein the lower jig support body further comprises a leg for supporting the lower jig support body so that the wheel is spaced apart from the installation surface. 8. The method of claim 7,
And an upper jig lifting member coupled to the upper jig to suspend the upper jig.

Images