JPH0159828B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for coupling a receiving member for receiving an upper plate disposed on an upper part of an upper bracket of a vertical shaft rotating electric machine and an upper part of a wind cylinder surrounding the side outer periphery of a stator. Regarding.

Fig. 1 shows a longitudinal cross-sectional view of the main parts of the fixed part of a vertical shaft rotating electric machine to which this type of coupling method is applied, and Fig. 2 shows a plan view of the upper bracket section with half of the upper plate removed. show. 1 is the stator core, stator coil 2
is attached. 3 is a stator frame with the stator core 1 fixed therein and installed on the foundation 32;
6 is a baffle plate, 6 is an air cooler, 7 is an upper bracket attached to the stator frame 3, and a plurality of arms 9 extend radially from a body 8 that supports a bearing (not shown). There is. Reference numerals 10 and 11 denote a receiving member disposed in the circumferential direction between the respective arm parts 9, and both ends of which are connected by connecting parts 14 and 15; 12, one end of which is connected to the distal end of the arm part 11 with a connecting part 16, and the other end of which is connected with the connecting part 16; are a plurality of radially arranged support members connected to the inner wall side of the wind trunk 33 of the foundation 32 by a connecting part 18; is a receiving member that is connected to the inner wall side of the wind body section 33 through a connecting portion 19. The upper surface of each of these receiving members 10 to 13 is aligned with the upper surface of arm portion 9. 20
a, 20b, and 20c are upper plates that are divided into multiple parts and placed on the upper part of the upper bracket 7, and each arm part 9
It is attached to the upper part and each of the receiving members 10 to 13 by mounting screws (not shown), and partitions the upper bracket 7 and the wind body part 33 from the outside.

The coupling portion 14 is shown in a plan view and a side sectional view in FIGS. 3 and 4, and as shown in a front sectional view in FIG. 5. A pair of support plates 22 are welded and fixed to both sides of the intermediate portion of the arm portion 9 of the upper bracket 7. 2
Reference numeral 3 designates a pair of seat plates on both sides that are welded and fixed onto these support plates 22. Each receiving member 10 has a mounting plate 24 welded and fixed to the lower end thereof, is attached to a seat plate 23 via a liner 25 with bolts 26, and its upper surface is aligned with the upper surface of the arm portion 9.

The connecting portion 15 to the receiving member 11 is also configured in the same manner as the connecting portion 14 described above.

The connecting portion 16 to one end of the receiving member 12 is shown in a plan view and a side sectional view in FIGS. 6 and 7, and in a front sectional view in FIG. 8. A pair of support plates 27 are welded and fixed to the tips of the arm portions 9,
A seat plate 23 is welded and fixed onto this support plate 27. The receiving member 12 has a mounting plate 24 fixedly welded to the lower part of one end thereof, and is attached to the seat plate 23 with a liner 25 via a bolt 26, and its upper surface is aligned with the upper surface of the arm portion 9.

The coupling portion 18 at the other end of the receiving member 12 is shown in a plan view and a side sectional view in FIGS. 12 and 13, and as shown in a front sectional view in FIG. 14. Wind body part 3
A pair of support plates 3 embedded on one side within the inner wall of 3.
A seat plate 29 is fixedly welded onto the top of the seat plate 1. The receiving member 12 has a mounting plate 30 welded and fixed to the bottom of the other end, and is attached to the seat plate 29 via a liner 25 with bolts 26, and its upper surface is aligned with the upper surface of the body 9.

The connecting portion 17 to one end of the receiving member 13 is shown in a plan view and a side sectional view in FIGS. 9 and 10, and in a first
The structure is shown in a front sectional view in Figure 1. A seat plate 23 is fixed by welding on a pair of support plates 28 which are fixed by welding to the middle lower part of the receiving member 11.
A mounting plate 24 is welded to the bottom of one end of the receiving member 13, and a bolt 26 is attached to the seat plate 23 through a liner 25.
The upper surface is aligned with the upper surface of the arm portion 9.

A coupling portion 19 at the other end of the receiving member 13 is also coupled in the same manner as the coupling portion 18 described above.

Each of the coupling parts 14 to 1 of each of the above-mentioned receiving members 10 to 13
The conventional coupling method in No. 9 was as follows. Each support plate 2 is provided on both sides and the tip side of each arm 9.
The seat plates 23 are fixed by welding via 2 and 27, respectively. Further, a seat plate 23 is welded and fixed to one side of the intermediate portion of each of the outermost receiving members 11 disposed in the circumferential direction between the arm portions 9 via a support plate 28. Each receiving member 1
A mounting plate 24 is welded and fixed to the bottom of both ends of the receiving members 12, 11 and one end of each receiving member 12, 13 so as to be positioned on the corresponding seat plate 23, and the mounting plate 24 is fixed to the bottom of the other end of the receiving members 12, 13. The mounting plates 30 are welded and fixed, and holes for bolts are drilled in these mounting plates 24 and 30, and screw holes for bolts are not yet drilled in each seat plate 23. In this state, each receiving member 1
0 to 13 are placed on the corresponding seat plates 23 using each mounting plate 24, and the positions are determined in the radial direction and the circumferential direction. Drill screw holes in each seat plate 23 to match the bolt holes in each mounting plate 24. Place each of the receiving members 10 to 13 again on the corresponding seat plate 23 via the liner 25, align the upper surface of each of the receiving members 10 to 13 with the upper surface of each arm 9, and attach the bolts 26 to each mounting plate 24.
through it and tighten it to the seat plate 23. Each upper plate 20a-20
c are arranged on each arm portion 9 and each receiving member 10 to 13,
Attach with mounting screws (not shown). In order to improve the appearance of each upper plate, the height is adjusted using the liner 25 so that there are no steps. These joining operations, except for the joints 18 and 19, are performed at the manufacturing factory, and after the test is completed, the parts are disassembled and transported to the site.

In the above-mentioned conventional coupling method, it was necessary to machine bolt holes in the seat plate to match the bolt holes in each mounting plate 24, and the workability was not good. In recent years, the capacity of water turbine generators has increased and they have become extremely large, requiring a large number of receiving members, and an extremely large number of screws for bolts made by matching the actual seat plates, which requires a great deal of time to process.

This invention provides for screw holes for bolts to be drilled in a seat plate welded to a predetermined position of each arm of an upper bracket and a seat plate welded to a predetermined position of a specific receiving member. Attach the mounting plates on top with bolts, place the ends of the corresponding receiving members on these mounting plates, and after positioning, secure the receiving members to the mounting plate by welding. It is an object of the present invention to provide a method for connecting a receiving member for an upper plate of an upper bracket part of a vertical shaft rotating electric machine, which can be performed with good work efficiency and can significantly shorten assembly time.

Hereinafter, a coupling method according to an embodiment of the present invention will be explained with reference to FIGS. 2 to 14. As shown in FIGS. 3 and 4, a seat plate 23 is welded and fixed to each joint part 14 and 15 of each arm part 9 of the upper bracket 7 via a support plate 22, and a seat plate 23 is fixed to each joint part 16 of each arm part 9 of the upper bracket 7 by welding. As shown in FIGS. 6 to 8, the seat plate 23 is welded and fixed via a support plate 27. Screw holes for bolts are made in these seat plates 23. This screw hole machining can be easily performed in a machine shop. Further, a seat plate 23 is welded and fixed to the joint portion 17 of the receiving member 11 via a support plate 28, as shown in FIGS. 9 to 11. A screw hole for a bolt is made in this seat plate 23. Furthermore, the support plates 3 of the joint parts 18 and 19
The seat plate 29 welded and fixed on the seat plate 1 is also machined with screw holes for bolts, and then transported to the site and embedded in the inner wall of the wind body part 33.

Next, a mounting plate 24 is attached onto each seat plate 23 with a liner 25 interposed therebetween using bolts 26. Next, each end of each of the receiving members 10 to 13 is placed on the corresponding mounting plate 24, and the mounting plate 24 is positioned.
Weld and secure the receiving member to. Each liner 25 is adjusted so that the upper surface of each receiving member 10 to 13 is aligned with the upper surface of arm portion 9. In this way, each of the upper plates 20a to 20c can be mounted on the arm portion 9 and each of the receiving members 10 to 13 with the mounting screws.

Note that the connecting portion 1 at the other end of the receiving members 12 and 13
8 and 19 are connected by attaching the mounting plate 30 to each seat plate 29 via the liner 25 with bolts 2 during on-site assembly.
6, the other end of each receiving member 12, 13 is placed on the corresponding mounting plate 30, and after alignment, both are fixed by welding.

As described above, according to the present invention, each seat plate is welded and fixed to a predetermined location of each arm of the upper bracket, and the intermediate part of the outermost position of the receiving member disposed between the arms is welded. Prepare screw holes for bolts on the fixed seat plates, attach the mounting plate to each of these seat plates with bolts, place the end of each receiving member on the above mounting plate, and secure both by welding. As a result, the screw holes in the seat plate can be easily machined, and the assembly time can be greatly reduced. Furthermore, there is no need for a dedicated drilling machine for machining screw holes in the seat plate by matching the actual parts during assembly, which was conventionally required.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of a main part of a fixed part of a vertical shaft rotating electrical machine to which a conventional receiving member coupling method and a receiving member coupling method according to an embodiment of the present invention are applied, and FIG. FIG. 3 is an enlarged plan view of the connecting portion 14 in FIG. 2, and FIGS. 4 and 5 are cross-sectional views along the - line in FIG. Sectional view at 6th
The figure is an enlarged plan view of the joint 16 in FIG. 2, FIGS. 7 and 8 are cross-sectional views along the - line and - line in FIG. 6, and FIG. 9 is a cross-sectional view of the joint 17 in FIG. 2. The enlarged plan view, FIGS. 10 and 11 are a sectional view taken along the - line in FIG. 9 and the sectional view taken along the XI-XI line, and FIG. FIG. 14 is a sectional view taken along the - line in FIG. 12 and a sectional view taken along the XI-XI line. 3... Stator frame, 7... Upper bracket, 9...
...Arm part, 10-13...Receiving member, 14-19...
...Joining part, 20a-20c...Top plate, 22,2
7, 28, 31...Support plate, 23...Seat plate, 24
...Mounting plate, 25...Liner, 26...Bolt,
29...Seat plate, 30...Mounting plate, 33...Wind body. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] 1 A plurality of receiving members are arranged in the circumferential direction between the plurality of radially extending arms of the upper bracket, and the position of the tip of each arm and the outer receiving member of the receiving members in the circumferential direction are A plurality of receiving members are arranged between the inner walls of the wind trunk in a radial direction from the intermediate position, and the ends of each of the receiving members are connected at a joint with each of the arms or the outer receiving member,
applied to the upper part of the upper bracket and the wind trunk,
In coupling a receiving member for an upper plate of an upper bracket part of a vertical shaft rotating electric machine, in which a plurality of divided upper plates are attached on each of the above-mentioned arms and each above-mentioned receiving member,
A joint position of each arm portion that receives a corresponding end of each of the receiving members, and a joint that receives a corresponding end of the radial receiving member at an intermediate portion of the outer portion of the circumferential receiving member. Weld and secure the seat plates at the respective positions, drill screw holes for bolts in these seat plates, attach the mounting plate to each seat plate with bolts through the liner, and attach the ends of each of the above-mentioned receiving members. A method for connecting a receiving member for an upper plate of an upper bracket part of a vertical shaft rotating electric machine, in which the receiving member is welded and fixed to the mounting plate after positioning.