JPH06189499A - Device for adjusting height of rotating machine - Google Patents

Abstract

PURPOSE:To provide a simple device for adjusting the height of a rotating machine that can increase the efficiency of adjustment work and flexibly achieve fine adjustment of height. CONSTITUTION:Two tapered liners 15 and 17 are inserted into a joint between a stator 11 of a rotating machine and a mounting table 21 while tapered surfaces of the tapered liners 15 and 17 overlap in such way that both tapered surfaces face each other. The height of the stator 11 is adjusted by laterally sliding either or both of the tapered liners 15 and 17, and both tapered liners 15 and 17 are fixed in the position where a desired height is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a height adjusting device for a rotating machine used for installing a stator of the rotating machine.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a power generation facility for hydraulic power generation is constructed by accommodating a water turbine 103 and a generator 105 connected thereto in a hole 101 in which concrete 102 is placed. Here, the stator portion 107 of the generator 105
Is installed in the hole 101 via height adjusting devices 80 attached near the upper end and the lower end thereof. Then, the height of the stator 107 is adjusted by the height adjusting device 80 and then fixed.

FIG. 4 shows a conventional height adjusting device 80 of this type.
2A is a side view, and FIG. 1B is a view as seen from an arrow A in FIG. 2A.

As shown in the figure, this height adjusting device 80
Mounts the flange 109 of the stator portion 107 on the mounting base 81 fixed to the concrete 102 with the height adjusting liner 83 made of a plurality of steel plates interposed between the flange 109 and the mounting base 81. Is tightened and fixed with a tightening bolt 85. Also flange 1
A jack bolt 87 is screwed to the 09, and the lower end of the jack bolt 87 passes through the height adjusting liner 83 and abuts on the mounting base 81.

In order to adjust the height of the stator 107 by the height adjusting device 80, the tightening bolt 85
Remove (or loosen) the jack bolt 8
7 is screwed in to open the space between the flange 109 and the mounting base 81, and in this state, the height adjusting liner 83 is inserted / removed /
Replace it and adjust its height. Then, turn the jack bolt 87 in the opposite direction to attach the flange 109 to the mounting base 81.
Place it on the top and tighten it with the tightening bolt 85.

[0006]

However, the above-mentioned conventional height adjusting device has the following problems. As many height adjustment liners are inserted into the fastening part to adjust the height, it is necessary to open the fastening part of the adjustment part using a jack bolt etc. each time and insert / remove / replace the height adjustment liner. However, in height adjustment work (including level adjustment), it is necessary to repeat this work many times, and the workability is not good and it takes a considerable amount of time.

Jack bolts and the like are required, and screws for jack bolts and the like have to be machined at each fastening portion. In addition to this, it is necessary to machine a reamer hole for torque transmission in this fastening portion, and the flange size of the fastening portion becomes unnecessarily large.

In recent years, in order to reduce the weight and simplification of the rotating device itself, the device itself has become smaller, and it is necessary to finely adjust the height dimension of the fastening portion. However,
There is a limit to the thickness of the height adjusting liner itself that is inserted into the fastening portion, and it is becoming more difficult to perform the fine adjustment, which requires more precision in the future.

The present invention has been made in view of the above points, and an object of the present invention is to provide a rotating device that has a simple structure, can improve the efficiency of adjustment work, and can flexibly cope with delicate height adjustment. It is to provide a height adjusting device.

[0010]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention has a plate-like one surface of which a taper shape is inclined at a fastening portion of a stator of a rotating machine to a mounting base. Insert two taper liners in a state of being overlapped so that both taper surfaces face each other, and slide the taper liners to fix the space between the two taper liners at the desired height, thereby increasing the height of the rotating equipment. The adjustment device was configured.

[0011]

[Operation] The height of the fastening portion can be adjusted simply by sliding the taper liner, and it is not necessary to use a jack bolt or the like to provide an opening in the fastening portion each time as in the conventional case, and workability is greatly improved. , The adjustment time is also greatly reduced.

Further, since a jack bolt or the like is not required and a screw or the like for the jack bolt is not required, the structure is simplified.

Further, since the height of the fastening portion is adjusted by sliding the taper liner, the fine adjustment can be flexibly dealt with.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1A and 1B are views showing a height adjusting device 1 for a rotating device according to an embodiment of the present invention, in which FIG. 1A is a side view and FIG. 1B is a view seen from an arrow B in FIG. Is.

As shown in FIG. 1, the height adjusting device 1 is
Two taper liners 15 and 17 are previously inserted between the flange 13 of the stator 11 of the rotating machine and the mounting base 21 fixed to the concrete 20, and the height is adjusted by the taper liners 15 and 17. Is configured to do.

Here, two taper liners 15 and 17 are provided.
Of the taper liner 15 and the taper liner 15 are overlapped with each other so that the surfaces on the opposite sides are tapered surfaces having the same inclination angle. .

FIG. 2 is a plan view showing the tapered liners 15 and 17. As shown in the figure, the taper liners 15 and 17 are provided with two through grooves 25 and 27, respectively. These through-grooves 25 and 27 are for passing the tightening bolts 23 and 23 described below.

The height of the stator 11 is adjusted by the height adjusting device 1 by sliding one or both of the tapered liners 15 and 17 laterally as shown in FIG. Since this height adjustment is performed by sliding the tapered surface, the fine adjustment is easy and highly accurate adjustment is possible.

After the adjustment is completed, the taper liners 15 and 1
Fix 7 so that they do not shift from each other. As the fixing means, for example, as shown by the one-dot chain line in FIG.
There are a method of forming a reamed hole penetrating the taper liners 15 and 17 and inserting and fixing the pin 31 therein, and a method of fixing the two taper liners 15 and 17 by welding.

After that, the flange 13 and the mounting base 21
Tighten and fix the space with the tightening bolts 23. This completes the height adjustment and fixing work of the stator portion 11.

FIG. 3 is a plan view showing another embodiment of the tapered liner used in the present invention. As shown in the figure, the through groove 2 provided in the two taper liners 15 'and 17'
The number of 5'and 27 'may be one. The number of through grooves may be three or more. The point is that any shape may be used as long as it is a tapered liner having one surface inclined in a tapered shape.

[0022]

As described above in detail, the height adjusting device for a rotating machine according to the present invention has the following excellent effects. Since it is possible to adjust the height just by sliding the taper liner, the jack bolts are used each time to open the fastening part of the adjustment part and insert / pull out the height adjustment liner. The need for replacement and adjustment is eliminated, workability is greatly improved, and the adjustment time is greatly shortened.

It is no longer necessary to use jack bolts or the like, and it is not necessary to process screws or the like for jack bolts at each fastening portion. In addition, it is no longer necessary to increase the flange size of the fastening portion more than necessary.

Since the height of the fastening portion is adjusted by sliding the taper liner, the fine adjustment can be performed.

[Brief description of drawings]

FIG. 1 is a diagram showing a height adjusting device 1 for a rotating device according to an embodiment of the present invention.

FIG. 2 is a plan view showing tapered liners 15 and 17. FIG.

FIG. 3 is a plan view showing another embodiment of the taper liner.

FIG. 4 is a diagram showing an example of a conventional height adjusting device 80.

FIG. 5 is a diagram showing a schematic structure of a power generation facility for hydroelectric power generation.

[Explanation of symbols]

 1 Height Adjustment Device 11 Stator 13 Flange 15 and 17 Tapered Liner 21 Mounting Base 23 Tightening Bolt

Claims (1)

[Claims] 1. A plate-shaped two taper liner, one surface of which is tapered in a taper shape, is superposed on a fastening portion of a stator of a rotating machine to a mounting base so that both taper surfaces face each other. A height adjusting device for a rotating machine, characterized in that the taper liner is inserted in a combined state and the taper liner is slid to fix the space between the two taper liners at a position where a desired height is achieved.