JP3386616B2 - Equipment centering device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device centering device,
In particular, it relates to a combined cycle turbine generator, and a device centering device for rotary machines such as commercial rotary machines and industrial rotary machines.

[0002]

2. Description of the Related Art A technique related to the present invention is disclosed in, for example, Japanese Patent Application Laid-Open No. 56-127892. This known example will be described with reference to FIG. FIG. 5 is a vertical cross-sectional view of a conventional device centering device.

When the device 2 is installed on the foundation 1, a hole 19 having a tapered surface, one surface of which is inclined, is formed in the device 2, and the tapered surface is formed when the device 2 is placed on the upper surface of the foundation 1. Inclusion 20 with a tapered surface having the same inclination angle as the inclined surface of the hole 19 with a tapered surface
Are inserted so that the inclined surfaces come into contact with each other.

The inclusion 20 with a tapered surface is provided with a centering bolt insertion hole 22 into which the centering bolt 21 is inserted, and the diameter of the centering bolt insertion hole 22 is larger than the outer diameter of the centering bolt 21. Is also getting bigger. Further, the foundation 1 is provided with a centering bolt screw hole 23 into which the tip of the centering bolt 21 is screwed.

In such a structure, the centering bolt 2
1 is screwed into the centering bolt screw hole 23 through the centering bolt insertion hole 22. And the hole with tapered surface 1
The inclined surface of the inclusion 20 with a tapered surface is slid on the inclined surface of 9. In this case, centering bolt 2
A part of the outer peripheral surface of 1 contacts with a part of the inner peripheral surface of the centering bolt insertion hole 22, and the contact state is maintained thereafter, so that the device 2 slides on the upper surface of the base 1.

This sliding enables fine adjustment when the device 2 is centered with respect to the foundation 1. In this way
When the centering of the device 2 is completed, the device 2 is fixed to the foundation 1 by the device fixing bolt 24.

Another technique related to the present invention is shown in FIG.
Will be explained. FIG. 6 is a perspective view of another conventional device centering device. This is the centering connecting rod 3 on the foundation 1.
And the device 2 is provided with a hole, the hole and the outer peripheral surface of the centering connecting rod 3 are fitted to each other, and the device 2 is rotated around the centering connecting rod 3. This is a method of centering the device 2 with respect to 1.

[0008]

However, in the known example shown in FIG. 5 described above, when the device is centered with respect to the foundation, the device can be moved back and forth and left and right with respect to the foundation, but in the circumferential direction. Is impossible to move.

Further, in the other technical example shown in FIG. 6, the device can be moved in the circumferential direction, but cannot be moved in the left and right directions.

An object of the present invention is to enable the front-rear, left-right and circumferential movements of the device with respect to the foundation in the case of centering the device with respect to the foundation, thereby eliminating any obstacle to the centering of the device. At the same time, this centering is to be performed accurately and quickly.

[0011]

The above object can be achieved as follows.

(1) In a device centering device used for centering a device with respect to the foundation when the device is installed on the foundation,
Foundation side centering connecting rod insertion hole that is drilled vertically in the foundation, and vertically extending through the equipment, centering connecting rod, inner cylinder with eccentric hole for centering sequentially from the inside to the outside ,
An outer cylinder with an eccentric hole for centering, and an equipment-side centering part insertion hole into which a rectangular columnar cylindrical fixing block is inserted,
The centering connecting rod penetrates the device side centering component insertion hole, and the base side centering connecting rod insertion hole and the outer peripheral surface are fitted to each other so that the device side centering component insertion hole and the foundation side centering connecting rod Inserted in the insertion hole, the inner cylinder with eccentric hole for centering is located so as to surround the centering connecting rod, and the hole fits with the outer peripheral surface of the centering connecting rod for centering. The outer cylinder with an eccentric hole is positioned so as to surround the inner cylinder with an eccentric hole for centering, the hole fits with the outer peripheral surface of the inner cylinder with an eccentric hole for centering, and the cylinder fixing block is centered. Is located so as to surround the outer cylinder with an eccentric hole, the hole fits with the outer peripheral surface of the outer cylinder with an eccentric hole for centering, and the outer peripheral surface fits with the device side centering component insertion hole. , The circumferential mounting position of the inner cylinder with an eccentric hole for centering on the connecting rod for centering, and the centering with respect to the inner cylinder with an eccentric hole for centering By adjusting the circumferential mounting position of the eccentric slotted outer cylinder, to perform centering of the instrument.

(2) In (1), a gap is provided between the outer peripheral surface of the cylindrical fixing block and the foundation side centering component insertion hole,
Inserting inclusions in the gap.

(3) In (1), an inner cylindrical slip-out prevention plate for fixing the inner cylinder with an eccentric hole for centering, and an outer cylinder slip-out prevention plate for fixing an outer cylinder with an eccentric hole for centering,
Must be provided separately.

(4) In (2), there is provided an inclusion removal prevention plate for fixing inclusions.

[0016]

In the present invention, the machine centering device uses the two cylinders with the eccentric hole for centering, the inner cylinder with the eccentric hole for the centering and the outer cylinder with the eccentric hole for the centering. That is, the inner cylinder with an eccentric hole for centering is positioned so as to surround the connecting rod for centering, and the hole portion fits with the outer peripheral surface of the connecting rod for centering,
The outer cylinder with the eccentric hole for centering is positioned so as to surround the inner cylinder with the eccentric hole for centering, and the hole portion is fitted to the outer peripheral surface of the inner cylinder with the eccentric hole for centering. .

Further, the cylindrical fixing block is in the shape of a quadrangular prism and is positioned so as to surround the outer cylinder with the eccentric hole for centering, and the hole is fitted to the outer peripheral surface of the outer cylinder with the eccentric hole for centering. Then, the outer peripheral surface is fitted into the device-side centering component insertion hole, or a gap is provided between the outer peripheral surface and the hole for inserting an inclusion, and the inclusion is inserted in this gap. This gap is
After the centering of the equipment with respect to the foundation, it is possible to correct the centering as necessary, and when operating the equipment,
This is provided as an escape area for the device when thermal expansion occurs in the device, and after the final adjustment of the centering of the device, the inclusion is inserted into the gap to complete the centering of the device.

In the configuration of the equipment centering apparatus as described above, the circumferential mounting position of the inner cylinder with an eccentric hole for centering on the connecting rod for centering, and the centering of the inner cylinder with an eccentric hole for centering Adjust the circumferential mounting position of the outer cylinder with the eccentric hole. In this case, the inner cylinder with the eccentric hole for centering and the outer cylinder with the eccentric hole for centering are both cylinders with the eccentric hole. It is possible to move the outer cylinder only in the left-right direction without moving it from the original state in the front-rear direction. In addition, the outer cylinder with an eccentric hole for centering can be moved only in the front-rear direction from the original state without moving in the left-right direction. It is also possible to move from the state in any diagonal direction.

Therefore, for example, when centering the device with respect to the foundation, the axis of the centering connecting rod and the axis of the outer cylinder with an eccentric hole for centering are aligned, that is, the centering connecting rod. When the outer cylinder with an eccentric hole for centering is installed so that the distance from the shaft center to the outer peripheral surface of the outer cylinder with an eccentric hole for centering is constant at any position on the outer peripheral surface. When the centering reference position is set, and when it is necessary to shift the device from the centering reference position by a certain amount in a certain direction to perform the centering of the device, the eccentric hole for centering moved by the adjustment as described above. By moving the outer cylinder with an eccentric hole for centering so that the axial center of the attached outer cylinder is displaced in the above-specified certain direction in the above-specified certain direction, Centering can be performed.

Further, such adjustment can be performed in the same manner in the case of front, rear, left, right and diagonal directions. Since such adjustment allows accurate centering of the device, it is possible to greatly reduce the factor of the thickness correction of the above-mentioned inclusions, which have been prepared in advance.

Further, since the centering connecting rod has a cylindrical shape, the foundation can be centered by rotating the foundation around the centering connecting rod.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. In the present embodiment, centering is performed by moving the device in the left-right direction with respect to the foundation. 1 is a perspective view of the device centering device of the present embodiment, FIG. 2 is a front view of the device centering device, FIG. 3 is a sectional view taken along line AA of FIG. 2, and FIG.
It is a B cross-sectional view, and in each case, the centering is completed and the device is installed on the foundation.

In the case of the present embodiment, the device 2 is a rotating device, and at the place where the device centering device is used, the lower surface of the device 2 is not brought into contact with the upper surface of the base 1, and the base 1 and the device 2 are not in contact with each other.
There is a slight gap between and. That is, the device 2 is directly or indirectly supported by the foundation 1 at another place, but such a difference in the supporting position is particularly noticeable in the configuration of the device centering device of the present invention. It doesn't matter.

The base 1 is provided with a base side centering connecting rod insertion hole 16 which is a cylindrical hole, and the device 2 is provided with a device side centering component insertion hole 17 which is a square columnar hole. The centering connecting rod 3 has an upper portion penetrating the device-side centering component insertion hole 17 and a lower portion inserted into the base-side centering connecting rod insertion hole 16. In addition, roundness is provided at the four corners of the device-side centering component insertion hole 17 to reduce the concentrated load.

The inner cylinder 4 with an eccentric hole for centering is positioned so as to surround the connecting rod 3 for centering, and the hole is fitted to the outer peripheral surface of the connecting rod 3 for centering. Further, the outer cylinder 5 with the eccentric hole for centering is positioned so as to surround the inner cylinder 4 with the eccentric hole for centering, and the hole portion is fitted to the outer peripheral portion of the inner cylinder 4 with the eccentric hole for centering. is doing.

The cylindrical fixing block 6 is positioned so as to surround the outer cylinder 5 with the eccentric hole for centering, and the hole portion, that is, the cylindrical insertion hole 18 with the eccentric hole has the outer cylinder with the eccentric hole for centering. 5 is fitted with the outer peripheral surface of the device 5, and the outer peripheral surface is fitted with the device-side centering component insertion hole 17 in the front-rear direction, and in the left-right direction, a gap is provided with the device-side centering component insertion hole 17. The inclusion 8 is inserted in the gap.

As mentioned above, this gap is not
The device 2 is provided so that it can be corrected as necessary even after the centering of the device 2 is completed, and as an escape area for the device 2 when thermal expansion occurs in the device 2 during operation of the device 2. After the final adjustment of the centering of item 2, the inclusion 8 is inserted into the gap to complete the centering of the device 2. That is, when it is necessary to release the thermal expansion of the device 2, the inclusions 8 are removed as appropriate.

As described above, in the present embodiment, the centering of the device 2 is performed with respect to the foundation 1 by the centering connecting rod 3, the inner cylinder 4 with the centering eccentric hole, and the centering eccentric hole. The outer cylinder 5, the cylinder fixing block 6, and the inclusion 8 are used. In this case, since the centering can be performed accurately, the necessity of adjusting the thickness of the inclusion 8 prepared in advance is greatly reduced.

Further, an inner cylindrical slip-out prevention plate 9 for preventing the inner cylinder 4 with an eccentric hole for centering from coming off and an outer cylindrical slip-out prevention plate for preventing an outer cylinder 5 with an eccentric hole for centering from coming off. 11 are provided respectively, the inner cylindrical pull-out prevention plate 9 is attached to the outer cylinder 5 with the eccentric hole for centering by the inner cylindrical pull-out prevention plate fixing bolt 10, and the outer cylindrical pull-out prevention plate 11 is the outer cylindrical pull-out prevention plate fixing bolt. They are fixed to the cylindrical fixing block 6 by 12, respectively. Further, a cylindrical fixing block supporting block 7 for preventing the cylindrical fixing block 6 from coming off is provided, and the cylindrical fixing block supporting block 7 is provided.
Are fixed to the device 2 by support block fixing bolts 13.

The procedure for centering the foundation 1 in this embodiment is as follows. First, the position of the axis of the centering connecting rod 3 when the centering connecting rod 3 is inserted and the amount of displacement from the centering reference position of the device 2 relative to the foundation 1 are confirmed. In this case, as described above, the centering reference position refers to the time when the centering connecting rod 3 and the outer cylinder 5 with an eccentric hole for centering are attached so that they coincide with each other. Indicates the position of the outer cylinder 5 with an eccentric hole for centering, whereby the device 2 with respect to the foundation 1 at this time
The position of will also be decided.

Then, after accurately moving the device 2 by the required displacement amount from the centering reference position of the device 2 with respect to the foundation 1, the outer cylinder 5 with an eccentric hole for centering is moved to the above-mentioned centering reference. The position to be moved from the position is examined and the state is determined.

From the determination result of this state, the inner cylinder 4 with an eccentric hole for centering with respect to the connecting rod 3 for centering and the inner cylinder 4 with an eccentric hole for centering for this state. Appropriate circumferential mounting positions of the outer cylinder 5 with a center hole are calculated, and the states of the inner cylinder 4 with a centering eccentric hole and the outer cylinder 5 with a centering eccentric hole to be mounted are determined.

Then, the inner cylinder 4 with an eccentric hole for centering and the outer cylinder 5 with an eccentric hole for centering are mounted in the state thus determined, and thereafter, as described above, the eccentric for centering is attached. Cylindrical fixing block 6 so as to surround the outer cylinder 5 with holes
Is attached, and the outer peripheral portion of the cylindrical fixing block 6 is inserted into the device-side centering component insertion hole 17, whereby the position of the device 2 with respect to the outer cylinder 5 with an eccentric hole for centering is determined.

Thereafter, when viewed from above, the hole of the inner cylinder 4 with the eccentric hole for centering is the connecting rod insertion hole 16 for the centering of the foundation side.
Until the inner cylinder 4 with an eccentric hole for centering and the outer cylinder 5 with an eccentric hole for centering are moved in the circumferential direction until they match. Through the hole of the inner cylinder 4 with the eccentric hole for centering, it is inserted into the base side centering connecting rod insertion hole 16, and the centering of the device 2 is completed.

After the centering of the device 2 is completed, the inclusions 8 are inserted to prevent the device 2 from moving left and right,
Part of the inclusion removal prevention plate 14 is inserted into the recess of the inclusion 8 and the inclusion removal prevention plate 14 is fixed to the device 2 with the inclusion removal prevention plate fixing bolt 15.

In this embodiment, after the centering of the device 2 is completed, the cylindrical fixed block supporting block is provided so that the device 2 can freely move in the left and right directions due to thermal expansion during the operation of the device 2. 7 and the cylindrical fixing block 6 are provided with a minute gap, and the inclusions 8 and the inclusion removal prevention plate 14 and the inclusion removal prevention plate fixing bolt 15 are removed to facilitate the lateral movement of the device 2. You can also let it.

In this embodiment, the equipment 1 is used for the base 1
Although it is a case of moving in the left-right direction to perform centering, the same can be applied to the case of moving in the front-back direction and in the oblique direction. Further, since the centering connecting rod 3 has a cylindrical shape, the device centering apparatus of the present invention can be applied to the centering performed by rotating the device 2 around the foundation 1.
Furthermore, when the device centering apparatus of the present invention is used, the necessity of correction processing by changing the thickness of the inclusions is greatly reduced, so that the centering of the device 2 can be performed accurately and quickly.

[0038]

According to the present invention, in the device centering device, when the device is centered with respect to the foundation, the device can be moved both in the front-rear direction, the left-right direction, and the circumferential direction, so that the device can be centered. It is possible to eliminate the points that hinder the operation and perform the centering accurately and quickly.

[Brief description of drawings]

FIG. 1 is a perspective view of a device centering device according to an embodiment of the present invention.

2 is a front view of the device centering device of FIG. 1. FIG.

3 is a cross-sectional view taken along the line AA of FIG.

4 is a sectional view taken along line BB of FIG.

FIG. 5 is a vertical sectional view of a conventional device centering device.

FIG. 6 is a perspective view of another conventional device centering device.

[Explanation of symbols]

1 ... Foundation, 2 ... Equipment, 3 ... Centering connecting rod, 4 ... Centering eccentric hole inner cylinder, 5 ... Centering eccentric hole outer cylinder, 6 ... Cylindrical fixing block, 7 ... Cylindrical fixing Block support block, 8 ... Inclusion, 9 ... Inner cylindrical pull-out prevention plate, 1
0 ... Inner cylinder removal prevention plate fixing bolt, 11 ... Outer cylinder removal prevention plate, 12 ... Outer cylinder removal prevention plate fixing bolt, 13
... Support block fixing bolts, 14 ... Inclusion removal prevention plate, 15 ... Inclusion removal prevention plate fixing bolts, 16 ... Foundation side centering connecting rod insertion hole, 17 ... Equipment side centering component insertion hole, 18 ... Unbalanced Cylindrical insertion hole with core hole, 19 ... Hole with tapered surface, 20 ... Inclusion with tapered surface, 21 ... Centering bolt,
22 ... Centering bolt insertion hole, 23 ... Centering bolt screw hole, 24 ... Equipment fixing bolt.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-56-127892 (JP, A) JP-A-4-19497 (JP, A) JP-A-7-208685 (JP, A) Actual development Sho-58- 187693 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F16M 5/00 F16M 7/00 F16M 13/00

Claims (4)

(57) [Claims] 1. In a device centering device used for centering the device with respect to the foundation when the device is installed on the foundation, a foundation-side connecting rod insertion hole is vertically bored in the foundation, Further, the device is vertically penetrated through the device, and in order from the inside to the outside, a connecting rod for centering, an inner cylinder with an eccentric hole for centering, an outer cylinder with an eccentric hole for centering, and a square columnar cylindrical fixing block. Has a device-side centering component insertion hole, the centering connecting rod passes through the device-side centering component insertion hole, and the base-side centering connecting rod insertion hole and the outer peripheral surface are fitted together. Are inserted into the device-side centering component insertion hole and the foundation-side centering connecting rod insertion hole, and the inner cylinder with an eccentric hole for centering is positioned so as to surround the centering connecting rod. Then, the hole is fitted to the outer peripheral surface of the centering connecting rod, The outer cylinder with an eccentric hole for centering is positioned so as to surround the inner cylinder with an eccentric hole for centering, and the hole portion is fitted with the outer peripheral surface of the inner cylinder with an eccentric hole for centering,
The cylindrical fixing block is positioned so as to surround the outer cylinder with an eccentric hole for centering, the hole portion is fitted to the outer peripheral surface of the outer cylinder with an eccentric hole for centering, and the outer peripheral surface is on the device side. Circumferential mounting position of the inner cylinder with an eccentric hole for centering that fits into the part insertion hole for centering, and the centering of the inner cylinder with an eccentric hole for centering. A device centering device, wherein the device is centered by adjusting the mounting position of the outer cylinder with an eccentric hole in the circumferential direction. 2. The equipment centering device according to claim 1, wherein a gap is provided between the outer peripheral surface of the cylindrical fixing block and the foundation-side centering component insertion hole, and an inclusion is inserted into the gap. 3. An inner cylinder slip-out prevention plate for fixing the inner cylinder with an eccentric hole for centering, and an outer cylinder slip-out prevention plate for fixing the outer cylinder with an eccentric hole for centering, respectively. Item 1. The device centering device according to item 1. 4. The device centering device according to claim 2, further comprising an inclusion removal prevention plate for fixing the inclusion.