KR200481629Y1 - Turbine shaft lifting apparatus - Google Patents

Abstract

The turbine shaft lifting device according to the present embodiment includes a disk-shaped main lug; First and second connection portions protruding toward the upper side of the main lug; And a spacer selectively coupled to a lower side of the main lug, wherein the first and second connection portions are coupled to the pair of wire members in a direction perpendicular to the main lug in mutually opposing directions, So that the main lug can be supported.

Description

[0001] DESCRIPTION [0002] Turbine shaft lifting apparatus [

The present invention relates to an aberration generator used in a pumped-storage power plant, and more particularly, to a turbine lifting device capable of lifting various types of turbine shafts used in an airstream generator.

Various types of aeration generators are installed in pumped-storage power plants. Such a water turbine generators may include various components, and after use for a predetermined period of time, they are subjected to disassembly and inspection for maintenance and the like.

In the case of a water turbine generator, shaft members having various configurations may be provided, and a descending shaft, a turbine shaft, a runner, and the like must be lifted by a crane or the like for disassembly.

Such a lifting operation is carried out using a separate lug. In other words, the lower shaft, the turbine shaft, and the runner are provided with dedicated lugs to match the shape of each of them when disassembling and assembling, and the wires are connected and lifted. Therefore, it is troublesome to provide dedicated lugs for each part. Particularly, depending on the shape of each lug, there may be a case where the wires are connected in two lines or a case where the wires are connected in three lines. When the wires are connected in this manner, The center of gravity is unbalanced due to the difference in the length of the workpiece.

Registration Utility Model No. 20-0184459 (registered on March 22, 2000)

The present embodiment has been conceived in view of the above points, and provides a turbine lifting device having an improved structure for lifting various kinds of equipment parts by using a single lifting device.

The turbine shaft lifting device according to the present embodiment includes a disk-shaped main lug; First and second connection portions protruding toward the upper side of the main lug; And a spacer selectively coupled to a lower side of the main lug, wherein the first and second connection portions are coupled to the pair of wire members in a direction perpendicular to the main lug in mutually opposing directions, So that the main lug can be supported.

The main lug includes a plurality of first through holes spaced apart from a center by a first distance; A plurality of second through holes spaced apart from each other by a second distance closer to the center spacing than the first through holes; And third and fourth through-holes for fastening with the spacer.

And the spacer may include first and second fastening holes having a shape and a diameter corresponding to positions corresponding to the third and fourth through-holes.

Four of the third through holes may be spaced apart from the center by a predetermined distance.

The third through-hole may be disposed closer to the center than the fourth through-hole.

The spacer is coupled to the main lug at one end and coupled to the turbine shaft at the other end, and can be used for lifting the turbine shaft.

Meanwhile, the turbine lifting device according to the present embodiment includes a disk-shaped main lug as described above; The main lug is connected directly to the lower shaft and the runner during a lifting operation of the lower shaft and the runner of the aerator generator, and the first and second connecting portions are connected to the upper and lower ends of the main shaft, 1 and the second connection portion are coupled to each other in a direction perpendicular to the main lug in mutually opposing directions and are respectively connected to the pair of wire members to support the main lug.

According to the present embodiment as described above, a lifting device for disassembling and assembling the lower shaft, the turbine shaft, and the runner can be commonly used. When the turbine shaft is lifted, a lug spacer is inserted into the upper groove of the shaft to assemble the main lug. When lifting the lower shaft and the runner, only the main lug is assembled immediately Therefore, it is possible to lift stable parts with only two wire members connected to the main lug.

1 is an exploded perspective view of a turbine lifting device according to the present embodiment,
Fig. 2 is a plan view of Fig. 1,
FIG. 3 is a side view of FIG. 1,
Fig. 4 is a front view of Fig. 1,
5 is a plan view of the fixing member according to the present embodiment,
6 is a view showing a state where a lower shaft is connected to a turbine lifting device according to the present embodiment,
7 is a view showing a state in which a turbine shaft is connected to a turbine lifting device according to the present embodiment,
8 is a view showing a state in which a runner is connected to a turbine lifting device according to the present embodiment.

Hereinafter, a valve disk leveling device according to the present embodiment will be described with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In addition, the same or corresponding components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. For convenience of explanation, the size and shape of each constituent member shown may be exaggerated or reduced have.

On the other hand, terms including an ordinal number such as a first or a second may be used to describe various elements, but the constituent elements are not limited by the terms, and the terms may refer to a constituent element from another constituent element It is used only for the purpose of discrimination.

Fig. 1 is an exploded perspective view of the turbine lifting device according to the present embodiment, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a side view of Fig. 1, Fig. 4 is a front view of Fig. 6 is a view showing a state where a lower shaft is connected to a turbine lifting device according to the present embodiment, and FIG. 7 is a view showing a state where a turbine shaft is connected to a turbine lifting device according to the present embodiment And FIG. 8 is a view showing a state where a runner is connected to a turbine lifting device according to the present embodiment.

As shown in FIG. 1, the turbine lifting device 100 according to the present embodiment may include a main lug 110 and a spacer 120.

The main lug 110 may be provided in a disc shape and may be made of a metal material to withstand a heavy load. At this time, it is preferable to have a certain thickness or more so as to minimize deformation.

The main lug 110 may include first and second connection portions 111 and 112 provided in a pair as shown in FIGS. The first and second connection portions 111 and 112 serve as pad eyes and are connected to unillustrated wire members so that the main lug 110 can be supported have.

The first connection part 111 may have a substantially triangular side, and a first wire connection part 111a may be provided at a central upper part. The first wire connection portion 111a may be formed in a hole shape having a predetermined diameter, and the wire member may be directly hooked or a separate hook member may be fastened and coupled.

The first supporting part 111b can prevent the first connecting part 111 from being separated from the vertical state due to an external load while maintaining a vertical state with respect to the main lug 110. [ As shown in the drawing, at least one of the first support pieces 111b is provided on the left and right sides of the first connection part 111 to support a load that causes maximum deformation. For example, as shown in the drawing, one side may be formed near the center, and the other side may be supported in pairs with two spaced apart from each other by a certain distance.

Meanwhile, the first connection part 111 according to the present embodiment may be fixedly coupled to the main lug 110 by welding or the like. However, the main lug 110 is not limited thereto, and when the main lug 110 is formed by casting or the like, it may be integrally formed through a mold.

The second connection portion 112 may be formed in the same shape as the first connection portion 111. The first connection part 111 and the second connection part 112 may be spaced a predetermined distance from the center of the main lug 110 so as to be parallel to a mutually symmetric position. The second connection portion 112 may also include a second wire connection portion 112a and a second support piece 112b and their configurations and roles are the same as those of the first wire connection portion 111a and the first support portion 111b ).

Meanwhile, the main lug 110 may have a plurality of through holes formed therethrough in the body, as shown in the plan view of FIG. 2, for selectively engaging with different parts.

That is, a first through-hole 113 is formed at a first distance-spaced portion furthest from the center hole 101 formed in the vicinity of the center, and a second through-hole 113 is formed at a second distance- And the third and fourth through holes 115 and 116 may be formed in the inner space of the first and second connection parts 111 and 112, respectively.

At this time, it is preferable that the first and second through holes 113 and 114 are arranged at a predetermined angle so as not to interfere with each other. 2, imaginary lines connecting the center hole 101 and the first holes 113 and imaginary lines connecting the center hole 101 and the second holes 114 overlap each other . ≪ / RTI > When the first through hole 113 is connected to the lower shaft 10 as shown in FIG. 6, the first through hole 113 can be fastened to the through holes formed at corresponding positions of the lower shaft 10. When the second through hole 114 is connected to the runner 30 as shown in FIG. 8, the second through hole 114 can be fastened to the through holes formed at positions corresponding to the runner 30.

Meanwhile, the third and fourth through holes 115 and 116 may be disposed in the inner space of the first and second connection portions 111 and 112. This is provided for coupling with the spacer 120, which will be described later, in order to facilitate lifting with the turbine shaft 20 having a relatively small contact area. In other words,. Four of the third through holes 115 may be spaced apart from the center hole 101 by a predetermined distance. At this time, according to the present embodiment, the imaginary line connecting the third through holes 115 can form a rectangle, and if necessary, can form a square shape. And the third through hole 115 may be disposed closer to the center hole 101 as compared to the fourth through hole 116 as shown. And the fourth through holes 116 may be disposed at positions that do not interfere with the third through holes 115. [ The fourth through hole 116 may have a relatively small diameter as compared with the third through hole 115.

The spacer 120 is selectively coupled to the lower side of the main lug 110. That is, the spacer 120 is not used when it is connected to the lower shaft 10 or the runner 30 as shown in Figs. 6 and 8, and is not used when the lifting operation of the turbine shaft 20 The main lug 110 may be coupled to the lower surface of the main lug 110 only.

The spacer 120 may be formed in a disk shape as shown in FIG. 1, and the spacer 120 may have a shape corresponding to a groove formed on the bottom surface of the main lug 110, as shown in FIG. 4, . 5, a plurality of through holes may be formed in the spacer 120 at positions corresponding to the third and fourth through holes 115 and 116, . According to the present embodiment, the spacer 120 may be provided with a spacer center hole 121, a first spacer hole 125, and a second spacer hole 126.

The spacer center hole 121 corresponds to the center hole 101 of the main lug 110. The first spacer hole 125 corresponds to the third through hole 115 and the second spacer hole 126 corresponds to the And the four through holes 116 can be matched. The spacer 120 can be fixedly coupled to the main lug 110 side and the fastening elements such as a bolt member passing through the holes can be fastened to corresponding positions on the turbine shaft 20 side, So that an easy lifting can be performed.

According to the present embodiment as described above, a lifting device for disassembling and assembling the lower shaft 10, the turbine shaft 20, and the runner 30 can be commonly used by using the single main lug 110. When the turbine shaft 20 is to be lifted, the lug spacer 120 is inserted into the upper groove of the shaft 20 so that the main lug 110 (see FIG. 1) and the special stud (not shown) Since the main lug 110 is assembled and lifted at the time of lowering the lower shaft 10 and the runner 30, the lifting of a stable component can be achieved with only two lines of wire members connected to the main lug 110 It is possible.

Therefore, when a separate lug member is used for each of the component parts as in the conventional art, the connection position and the number of the wire members are not constant, and it is difficult for the lifting operation using the crane to be stably performed. A pair of wire members are always connected to the main lug 110 in parallel directly or by using a shackle or the like, and if necessary, different lifting objects may be directly connected to the main lug 110 or indirectly connected to the main lug 110 using the spacer 120 It is possible to perform the maintenance work of the turbine shaft quickly and safely.

While the embodiments of the present invention have been described above, those skilled in the art will appreciate that additions, alterations, and deletions of components may be made without departing from the spirit of the present invention as set forth in the claims for utility model registration. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

100; A turbine shaft lifting device 110; Main lug
111; A first connecting portion 111a; The first wire connection portion
111b; A first support piece 112; The second connection portion
112a; A second wire connection portion 112b; The second support piece
113; A first through hole 114; Second through hole
120; A spacer 121; Spacer center hole
125; A first spacer hole 126; The second spacer hole

Claims (7)

A disk-shaped main lug;
First and second connection portions protruding toward the upper side of the main lug; And
And a spacer selectively coupled to the lower side of the main lug,
Wherein the first and second connection portions comprise:
The main lugs being coupled to the pair of wire members in a direction perpendicular to the main lugs in mutually opposing directions to support the main lugs,
The main lug includes:
A plurality of first through holes spaced a first distance from the center;
A plurality of second through holes spaced apart from each other by a second distance closer to the center spacing than the first through holes; And
And third and fourth through-holes for fastening with the spacer,
Wherein imaginary lines connecting the center and the first through holes and virtual lines connecting the center and the second through holes are arranged so as not to overlap with each other. delete The method of claim 1,
And first and second fastening holes having a shape and a diameter corresponding to positions corresponding to the third and fourth through holes. 2. The apparatus of claim 1, wherein the third through-
Wherein the four turbine shafts are spaced a predetermined distance from the center. 2. The apparatus of claim 1, wherein the third through-
And is disposed closer to the center than the fourth through-hole. The method of claim 1,
The turbine shaft lifting device being coupled to the main lug at one end and coupled to the turbine shaft at the other end thereof for lifting the turbine shaft. delete

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