SU1628139A1 - Framework of rotor of vertical water-wheel generator of umbrella type - Google Patents

Abstract

The invention of PT ea-.ts to electrical engineering, in particular to the hydrogenerators of the vertical, and h-1 about the type of umbrella execution. The purpose of it greteni - saving metal, ensuring ease of assembly. The central part 1 of the rotor core contains an upper flange 3 with a disk 8 attached to it. Between the flanges 3 and 9 there is a vertical cylinder 10, which is integrally connected to the support ring 1 of the supporting element 12. The supporting element 12 has an open channel 26 between the vertical 10 and the outer 15 cylinders. Cylinder 10 and 15 are oil-tight. 1 hp f-ly, 3 ill. (/ With gss os oe her FIG. I

Description

The invention relates to electrical engineering, in particular to vertical-type hydrogenerators, such as an umbrella version, in particular, to the design of the shaftless arrangement of the rotor core.

The purpose of the invention is to save metal and provide ease of assembly.

Figure 1 shows the frame of the rotor, a longitudinal section; figure 2 - that zhg, cross section; in FIG. 3, view A in FIG.

According to this proposal, the core of the rotor of the proposed design is an arrangement consisting of a drum-type central part 1 (FIG. 1.2) with attached spokes 2. The central part 1 consists of an upper inner flange 3 designed to attach a shaft to it 4 with a bearing bushing 5 using bolts 6 and nuts 7. The central part 1 has several communication elements made of sheet metal and interconnected by electric welding.

Thus, an upper disk 8 is attached to the upper flange 3 on the outer diameter side. The connecting element between the upper 3 and lower 9 flanges of the central part is a vertical cylinder 10, which is simultaneously connected by a lower end to the support ring 11 of the supporting element 12 on the side close to the inner diameter. The flange 9 is designed to attach to it the flange 13 of the shaft 14 of the turbine. . On the outer side, the supporting element 12 is provided with an outer cylinder 15, which attaches to this element the required rigidity in transferring axial load to the pad 16.

At the same time, the cylinder 15, after appropriate processing (lifting), facilitates the most convenient installation of the sealing device 17, since this shell is made without windows, slots and gaps, which eliminates possible leakage of oil vapors from the submersible bath 18 16. The upper part 19 cylinder 15 with the lower disk 20, which is connected to one common rigid system with a butt plate 21, an edge 22 and kerchiefs 23. To ensure a rigid connection of the entire skeleton from the inner diameter side, lancers 3 and 9, as well as

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the support ring 11 is connected to each other and to the cylinder 10 by means of vertical ribs 24 and 25. At the level. i of the flange 9 and the disk 20, the supporting element 12 in the upper part has an open annular channel 26, the presence of which ensures the convenience and safety of welding assembly work, as well as the possibility of testing the welds for oil tightness. In addition, the presence of an open annular channel 26 excludes the possibility of increasing the external diameter 9 to the shell 19.

In order to access the junction of the flange 9 of the central part of the core with the flange 13 of the shaft 14, a special window 27 with a closure 28 is provided in the cylinder 0.

The support part 12 for providing axial and radial rigidity is provided with radial-vertical ribs 29, evenly spaced around the circumference between the cylinder 10 and the cylinder 15 and bonded simultaneously by electric welding with the support ring 11, the ribs 22, the cylinder 12 and the cylinder 15.

The presence of an open annular duct 26 also provides the convenience of operations to jointly couple the central part 1 to the subdisc disk 30 through the holes 31 and the bolts 32.

During operation of the hydrogenerator, the proposed design of the rotor core ensures reliability.

The technical and economic efficiency of the proposed design of the core consists in reducing the material consumption with the required stiffness due to the open: annular channel.

All elements that enter into the central part of the rotor core as components are interconnected and represent a single rigid and reliable design, which made it possible to refuse the use of metaploem and expensive cast rotor sleeves and a subtitle, replacing them in a new design. yuvochno-constructive combination.

Claims (2)

1. The frame of the rotor of the vertical hydrogenerator of the umbrella type, containing the central part, consisting from upper and lower flanges connected by a vertical cylinder, topical discs, a SUPPORTING element with an annular channel between its outer and inner cylinders and a horizontal support ring, stiffeners and butt plates, characterized in that, in order to save metal and provide ease of assembly, vertical cylinder and the inner cylinder of the support element is made in one piece, and the annular channel is open at the top. 2. The rotor core according to claim 2, characterized in that the inner and outer cylinders of the support element are oil-tight over the entire surface and are permanently fixed to the lower disk, flange and support ring. fig g Type A 20 15 iO PhieZ