CN216009036U - Alignment device suitable for large-scale unit - Google Patents
Alignment device suitable for large-scale unit Download PDFInfo
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- CN216009036U CN216009036U CN202121917655.7U CN202121917655U CN216009036U CN 216009036 U CN216009036 U CN 216009036U CN 202121917655 U CN202121917655 U CN 202121917655U CN 216009036 U CN216009036 U CN 216009036U
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Abstract
The utility model discloses an alignment device suitable for a large-scale unit, which comprises a flange plate, a connecting rod, a support body, a counterweight rod and a plug which are coaxially arranged in sequence; the flange plate is provided with a plurality of connecting holes; the outer diameter of the flange is larger than that of the support body; the outer diameter of the support body is larger than the outer diameters of the connecting rod and the counterweight rod. The utility model provides a simple and convenient alignment device, which replaces a rotor to perform unit alignment, and through tests on a unit of an axial flow compressor, the alignment device is a tool for effectively aligning the unit by replacing the rotor, has high use efficiency, meets the unit alignment requirement, is convenient to install and align, and improves the unit alignment efficiency.
Description
Technical Field
The utility model belongs to the field of axial flow compressors, relates to unit alignment, and particularly relates to an alignment device suitable for a large-scale unit.
Background
The axial flow compressor unit consists of a rotor and a stator, wherein the mechanical running test and the gear box alignment in a unit factory or the user alignment with a motor on site have the defects of overlong and overweight unit and difficult alignment and adjustment. In the prior art, alignment of the unit is usually performed using a rotor. However, for the large unit shown in FIG. 3, the rotor length is 1088mm, the shaft diameter span 9195mm, and the weight is 68T. The alignment using a rotor has the following problems:
firstly, the rotor is heavy, and the lifting appliance is utilized in the lifting process, so that the lifting process is time-consuming and labor-consuming at one time and is very difficult.
Secondly, when alignment deviation needs to be adjusted, need to lift out the rotor and carry out adjustment many times, the operation is complicated, lifts by crane many times and hangs into to have the risk of colliding with the bearing cylinder inner wall.
Thirdly, the alignment workload is large and the efficiency is low.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide an alignment device suitable for a large-scale unit, and solve the technical problem of low efficiency in rotor alignment in the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
an alignment device suitable for a large-scale unit comprises a flange plate, a connecting rod, a support body, a counterweight rod and a plug which are coaxially arranged in sequence;
the flange plate is provided with a plurality of connecting holes;
the outer diameter of the flange is larger than that of the support body;
the outer diameter of the support body is larger than the outer diameters of the connecting rod and the counterweight rod.
The utility model also has the following technical characteristics:
the outer diameter of the flange plate is equal to the outer diameter of a rotor alignment shaft head of an axial flow compressor in a large-scale unit.
The length of the support body is equal to the support length of a rotor journal of an axial flow compressor in a large-scale unit; the outer diameter of the support body is equal to the diameter of a rotor shaft of an axial flow compressor in a large-scale unit and is larger by one precision grade.
The center of gravity of the alignment device suitable for the large-scale unit is positioned in the center of the support body.
The connecting holes are arranged in a centrosymmetric manner by taking the central shaft of the flange plate as the center.
The connecting holes are strip-shaped through holes, and the number of the connecting holes is four.
Compared with the prior art, the utility model has the following technical effects:
the utility model provides a simple and convenient alignment device, which replaces a rotor to perform unit alignment, and is a tool for effectively performing unit alignment on the rotor, has high use efficiency, meets the unit alignment requirement, is convenient to install and align and improves the unit alignment efficiency through tests on a unit of an axial flow compressor.
The utility model (II) takes the weight of the rotor and the characteristics of the shaft head structure of the alignment end into full consideration, designs a practical rotor alignment device, solves the problems of large weight of the rotor, time and labor waste and great difficulty in one-time lifting by utilizing a lifting appliance.
And (III) when alignment deviation needs to be adjusted, the rotor does not need to be lifted for multiple times, and the risk that the rotor is lifted out of or into the bearing cylinder and collides with the inner wall of the bearing cylinder is avoided.
The Invention (IV) has simple structure, light weight, convenient alignment and adjustment operation of the unit and high efficiency.
Drawings
Fig. 1 is a schematic structural diagram of an alignment device suitable for a large-scale unit according to the present invention.
Fig. 2 is a schematic end view of the flange.
Fig. 3 is a schematic diagram of the overall structure of a large-scale unit.
The meaning of the individual reference symbols in the figures is: the device comprises a flange plate 1, a connecting rod 2, a support body 3, a weight balance rod 4, a plug 5, a connecting hole 6, a motor 7, a gear box 8 and an axial flow compressor 9.
The present invention will be explained in further detail with reference to examples.
Detailed Description
All parts in the present invention are those known in the art, unless otherwise specified.
The following embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention are within the protection scope of the present invention.
Example (b):
the embodiment provides an alignment device suitable for a large-scale unit, as shown in fig. 1 and 2, the alignment device comprises a flange plate 1, a connecting rod 2, a support body 3, a weight lever 4 and a plug 5 which are coaxially arranged in sequence;
the flange plate 1 is provided with a plurality of connecting holes 6;
the outer diameter of the flange plate 1 is larger than that of the support body 3;
the outer diameter of the support body 3 is larger than the outer diameters of the connecting rod 2 and the balance weight rod 4.
In this embodiment, the large-scale unit includes a motor 7, a gear box 8, and an axial compressor 9.
As a preferable scheme of this embodiment, the outer diameter of the flange 1 is equal to the outer diameter of the rotor alignment shaft head of the axial flow compressor 9 in the large-scale unit. The consistency of data of making a table with the rotor is met, and the alignment error is reduced. In addition, the excircle of the flange plate 1 and the supporting reference of the supporting body 3 have the processing technical requirements of coaxiality and verticality, and the installation condition of the rotor is simulated.
Specifically, the connecting rod 2, the flange plate 1 and the support body 3 are welded into a whole, and the length of the connecting rod is equal to the distance from the support center of the rotor to the end face of the flange.
As a preferable scheme of this embodiment, the length of the supporting body 3 is equal to the supporting length of the rotor journal of the axial flow compressor 9 in the large-scale unit; the outer diameter of the support body 3 is equal to the rotor shaft diameter of the axial flow compressor 9 in the large-scale unit and is larger by one precision grade; the purpose is that the clearance with the bearing gland is little than the rotor clearance after the installation, guarantees that the drooping head phenomenon can not appear in the alignment device after the installation.
As a preferable mode of the present embodiment, the center of gravity of the alignment device suitable for a large-sized unit is located at the center of the support body 3. The length of the counterweight rod 4 is integrated with the support body 3 by adopting seamless steel pipe welding in order to meet the requirement that the center of gravity of the alignment device is at the center of the support body 3,
specifically, the end face of the counterweight rod 4 is embedded with the plug 5, and the end face of the plug 5 is provided with a central hole, so that the processing and hoisting requirements are met.
As a preferable mode of the present embodiment, the connection holes 6 are arranged in a central symmetry with the central axis of the flange plate 1 as the center. Further preferably, the connecting holes 6 are strip-shaped through holes, and the number of the connecting holes is four.
The connecting holes can reduce weight and can be connected with the alignment meter frame.
When the aligning device is used, the aligning device suitable for the large-scale unit is adopted to replace a rotor to align the unit. Namely, when the unit is aligned, the aligning device suitable for the large-scale unit and the gear box are hoisted to perform alignment, and after the alignment is qualified, the aligning device is hoisted to the rotor to re-check the alignment result.
Claims (6)
1. An alignment device suitable for a large-scale unit is characterized by comprising a flange plate (1), a connecting rod (2), a support body (3), a balance weight rod (4) and a plug (5) which are coaxially arranged in sequence;
the flange plate (1) is provided with a plurality of connecting holes (6);
the outer diameter of the flange plate (1) is larger than that of the support body (3);
the outer diameter of the support body (3) is larger than the outer diameters of the connecting rod (2) and the counterweight rod (4).
2. The aligning device suitable for large-scale units according to claim 1, wherein the outer diameter of the flange (1) is equal to the outer diameter of the aligning shaft head of the rotor of the axial flow compressor (9) in the large-scale unit.
3. The alignment device for large units according to claim 1, wherein the length of the support body (3) is equal to the supporting length of the rotor journal of the axial compressor (9) in the large unit; the outer diameter of the support body (3) is equal to the rotor shaft diameter of the axial flow compressor (9) in the large-scale unit and is larger by one precision grade.
4. The alignment device for large scale units according to claim 1, wherein the center of gravity of the alignment device for large scale units is at the center of the support body (3).
5. The aligning apparatus for large-sized units according to claim 1, wherein the connecting holes (6) are arranged in a central symmetry manner with respect to the central axis of the flange (1).
6. The aligning apparatus for large-sized units according to claim 1, wherein the connecting holes (6) are strip-shaped through holes, and the number of the connecting holes is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121917655.7U CN216009036U (en) | 2021-08-16 | 2021-08-16 | Alignment device suitable for large-scale unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121917655.7U CN216009036U (en) | 2021-08-16 | 2021-08-16 | Alignment device suitable for large-scale unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216009036U true CN216009036U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121917655.7U Active CN216009036U (en) | 2021-08-16 | 2021-08-16 | Alignment device suitable for large-scale unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216009036U (en) |
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2021
- 2021-08-16 CN CN202121917655.7U patent/CN216009036U/en active Active
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