KR20160078732A

KR20160078732A - Small turbine alignment process method

Info

Publication number: KR20160078732A
Application number: KR1020140188811A
Authority: KR
Inventors: 임주창; 이재준; 이상훈; 이상명; 오성근
Original assignee: 포스코에너지 주식회사
Priority date: 2014-12-24
Filing date: 2014-12-24
Publication date: 2016-07-05

Abstract

It is an object of the present invention to provide a small-sized turbine axis aligning operation method that facilitates an equipment level that minimizes the movement of an axis when the axis aligning operation is performed, thereby protecting an axis, which is an important part of the equipment, .
According to an aspect of the present invention, there is provided a method of aligning a small turbine shaft, the method comprising: forming an insertion groove having a predetermined shape in a bottom of the equipment; inserting a simplex into the insertion groove; So that the level of the equipment is lowered.

Description

Small turbine alignment process method [0002]

The present invention relates to a small-sized turbine-axis aligning method, and more particularly, to a small-sized turbine-axis aligning operation method that minimizes the movement of shafts and equipment without exerting excessive force on the equipment through modification of the simplex setting method.

Joint alignment fixture is a means used to support the shaft when performing alignment work on the ship's shaft in the field such as shipyard.

However, in the conventional shaft alignment fixture, the distance between the two rollers supporting the shaft is fixed below, and when the shaft diameter of each ship type and displacement amount exceeds a certain standard, a problem that the shaft alignment alignment fixture .

In order to solve the above-described problems, Japanese Patent Application Laid-Open No. 2001-0020582 proposes a fixture for aligning a shaft.

As shown in FIG. 1, the above-described conventional positionable shaft aligning fixture includes two rollers 100 symmetrically positioned on both sides of the bottom plate 400 and supporting the shaft at the bottom; The roller 100 is coupled to the lower portion of the roller 100 as a rectangular plate member and is supported by the roller 100 so as to slide on the bottom plate 400 without being fixed to the bottom plate 400 under the body, A roller support 200 for moving the roller support 200 to a predetermined position; Two angles having a trail end section are fixed in a symmetrically opposed manner on both the front and rear sides on the bottom plate 400 and the roller support 200 inserted into the groove of the base station shape is gripped so as not to shake, A roller pedestal movement frame 300 for providing a path through which the movable member 300 moves; And a bottom plate 400 which is a plate-like member and engages under the roller pedestal moving frame 300.

The conventional position-adjustable shaft aligning jig having the above-described structure can be used as it is without any additional production even when the shaft diameters of the ship types and the amount of displacement are different each time, and the additional time (Man-Hour) It can greatly contribute to the reduction of manufacturing costs and the like.

However, in the conventional aligning jig for aligning a shaft having the above-described structure, there is a possibility that an excessive force is applied to the shaft and the shaft is damaged during rotation in consideration of only the flange portion by moving only the shaft.

[Patent document 10-2011-0020582] (Publication date: Mar. 3, 2011)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for controlling an axis, The present invention provides a method for aligning a small-sized turbine shaft.

According to an aspect of the present invention, there is provided a method of aligning a small turbine shaft, the method comprising: forming an insertion groove having a predetermined shape in a bottom of the equipment; inserting a simplex into the insertion groove; So that the level of the equipment is lowered.

As described above, in the small turbine axial aligning method according to the present invention, an insertion groove having a predetermined shape is formed at the bottom of the equipment, a simple rate is inserted into the insertion groove, and when the level of the equipment is higher than the reference value By eliminating the simplicity and lowering the level of the equipment, it is possible to carry out the axis alignment operation directly with the equipment mounted, and the installation convenience is improved in the portion where the movement of the axis is forcibly minimized.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an illustration showing a conventional shaft alignment jig,
2 is a perspective view showing a state where a simplex is installed in a bearing housing according to the present invention,
3 is a front view showing a state where a simplex is installed in a bearing housing according to the present invention;
4 is a sectional view showing a state where a simplex is installed in a bearing housing according to the present invention.

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

FIG. 2 is a perspective view showing a state where a simple rate is installed in a bearing housing according to the present invention, FIG. 3 is a front view showing a state where a simple rate is installed in a bearing housing according to the present invention, Sectional view showing a state in which the simplex is installed in the housing.

As shown in these drawings, a method for aligning a small turbine shaft according to the present invention includes the steps of forming an insertion groove 110 having a predetermined shape on the bottom of the equipment 100, and attaching a flexible simplex 120 When the level of the equipment 100 is higher than the reference level, the inserted SIMPLE 120 is removed to lower the level of the equipment 100.

Here, the small turbine axis aligning operation method according to the present invention can easily perform the axis aligning operation in a state where the apparatus 100 is mounted, minimizes the situation in which the axis is forcedly moved, .

That is, in the method of aligning a small turbine shaft according to the present invention, the rectangle insertion groove 110 may be previously formed at a location where the apparatus 100 and the foundation contact with each other to install the simplex 120 in the insertion groove 110 To secure space.

In order to facilitate setting of the level of the equipment 100, the SIMPLE 120 is installed in advance for several expected sizes, and the SIMPLE 120 is installed in a predetermined amount in the axis aligning operation, So that it can be removed.

In order to facilitate the removal of the simplex 120 in the insertion groove 110, a circular hole is formed in an area of the contact surface of the tool 100, Can be prevented in advance.

It can be applied to various initial conditions that start axis alignment like this. There is an advantage that axis deviation can be eliminated and axis alignment operation time can be shortened by going beyond the existing method of performing axial alignment work by forcibly moving the axis, It is easy to work with and it is worth to use for all small equipment (100) axis alignment work.

Hereinafter, the present invention will be described in more detail by way of examples.

FIG. 2 is a view showing a portion where a shaft is connected to a bearing housing in a rotating machine. When a shaft and a bearing are assembled to the bearing housing and assembled again with the bearing housing, a shape in which the bearing housing and the shaft are assembled can be obtained.

At this time, when the bearing housing is deflected due to the self weight of the rotor including the shaft, or when the gap between the bearing outer ring and the bearing housing is generated due to the defective operation of the bearing housing, noise and noise may be reduced during operation of the rotating machine.

Here, if alignment and leveling are not appropriate when assembling between the devices 100, the simple rate 120 is inserted to overcome the gap. In such a case, since the contact surface is curved, it is difficult to apply the general simplicity 120 .

Therefore, if a flexible simplex 120 capable of ensuring a curved surface can be applied to such a portion, it can be mounted as shown in FIG.

Although the installation of the simplex 120 is different depending on the structure of the bearing housing, the flexible simplex 120 can be applied in the form of a top-bottom assembly type as shown in FIG.

Here, the flexible shim 120 is locally applied to a portion of the bottom of the insertion groove 110 that is not in contact with the bottom surface of the insertion groove 110, so that the effect of installing the simplex 120 can be obtained.

Particularly, the material of the simplex 120 should be made of a somewhat soft material such as aluminum rather than a material having a strong metallic property, so that damage to the bearing can be prevented even if the bearing outer ring rotates for any reason during operation.

Meanwhile, when the simplex 120 is installed, the bearing housing is naturally installed by the weight of the shaft or the rotor. However, since there is no pressure and load applied to the upper bearing housing, It is noted that only a small amount of adhesive may be used.

The method for aligning a small turbine shaft according to the present invention having the above-described structure is characterized in that an insertion groove 110 having a predetermined shape is formed at the bottom of the equipment 100, and a simplex 120 is inserted into the insertion groove 110 So that when the level of the equipment 100 is higher than the reference value, the simplicity 120 is removed to lower the level of the equipment 100, thereby performing the axis alignment operation immediately in the state where the equipment 100 is mounted And the installation convenience is improved in a portion where the situation in which the shaft is forced to move by force is minimized.

100: Equipment 110: Insertion groove
120: Simplicity

Claims

Wherein a predetermined shape of an insertion groove (110) is formed in the bottom of the apparatus (100), and a simplex (120) is inserted into the insertion groove (110).

The method according to claim 1,
Wherein when the level of the equipment (100) is higher than the reference value, the installed simplex (120) is removed to lower the level of the equipment (100).

3. The method according to claim 1 or 2,
Wherein the simplex (110) is configured with a flexible simplex.