CN216303028U - Nuclear power station generator bearing assembly and disassembly tools - Google Patents
Nuclear power station generator bearing assembly and disassembly tools Download PDFInfo
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- CN216303028U CN216303028U CN202122717393.6U CN202122717393U CN216303028U CN 216303028 U CN216303028 U CN 216303028U CN 202122717393 U CN202122717393 U CN 202122717393U CN 216303028 U CN216303028 U CN 216303028U
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Abstract
The utility model relates to the technical field of maintenance of large-scale electromechanical equipment, and particularly discloses a bearing dismounting tool for a generator of a nuclear power station, wherein a C-shaped groove is processed on a C-shaped hoisting plate; the left side connecting surface of the lower part of the C-shaped hoisting plate and the upper part of the connecting plate are respectively symmetrically provided with a transverse bolt hole, and the C-shaped hoisting plate is fixedly connected with the connecting plate through a bolt B and a nut; a transverse bolt hole is processed in the middle of the lifting plate, and radial bolt holes are respectively processed at two feet of the lifting plate; the middle part of the lifting plate is fixed with the lower part of the connecting plate through a bolt D, and two feet of the lifting plate are fixedly connected with the dismounting bearing through bolts A respectively. The mounting and dismounting tool is suitable for bearing hoisting work during mounting, debugging and overhaul of the steam turbine generator unit, and is quick to mount and simple to maintain.
Description
Technical Field
The utility model belongs to the technical field of maintenance of large-scale electromechanical equipment, and particularly relates to a bearing dismounting tool for a generator of a nuclear power station.
Background
The steam turbine generator set is a high-speed rotating machine, and utilizes the heat energy of high-temperature and high-pressure gas to drive a rotor to rotate so as to convert the heat energy into mechanical energy, and the mechanical energy is converted into electric energy through a generator; the bearing is an important component of the steam turbine set and is used for bearing the steam turbine set.
The hoisting work of bearing installation and disassembly is often involved in the installation and maintenance process. Because the design structure of the steam turbine generator unit is compact, the space above the bearing is limited due to the influence of the cylinder body, the existing hoisting tool is installed on the bearing or directly hoisted vertically, and the risk of collision and damage in the hoisting process due to inclined pulling and inclined hoisting can exist; or after the hoisting space is vacated by dismantling the upper outer cylinder body, the bearing is hoisted vertically, so that the bearing can not be directly disassembled for inspection, and unnecessary maintenance workload is increased.
Therefore, a bearing dismounting tool for a generator of a nuclear power station needs to be designed to overcome the defect that a bearing cannot be directly and vertically lifted.
Disclosure of Invention
The utility model aims to provide a tool for disassembling and assembling a generator bearing of a nuclear power station, which aims to solve the problem that the hoisting space of the generator bearing is narrow.
The technical scheme of the utility model is as follows:
a bearing dismounting tool for a generator of a nuclear power station comprises a C-shaped hoisting plate, a bolt, a nut and a connecting plate;
c-shaped grooves are processed on the C-shaped hoisting plates;
transverse bolt holes are symmetrically formed in the left connecting surface of the lower portion of the C-shaped hoisting plate and the upper portion of the connecting plate respectively, and the C-shaped hoisting plate is fixedly connected with the connecting plate through bolts B and nuts;
the lifting plate is an arc-shaped piece, a transverse bolt hole is processed in the middle of the lifting plate, and radial bolt holes are respectively processed at two legs of the lifting plate;
the middle part of the lifting plate is fixed with the lower part of the connecting plate through a bolt D, and two feet of the lifting plate are fixedly connected with the dismounting bearing through bolts A respectively.
Key grooves are symmetrically processed on the lower left connecting surface of the C-shaped hoisting plate and the upper portion of the connecting plate respectively, and connecting keys are fixedly arranged in the key grooves of the C-shaped hoisting plate through bolts C.
And the top of the C-shaped hoisting plate is provided with a hoisting ring for connecting a large hoisting tool.
During hoisting, the interference position of the upper cylinder body is positioned at the C-shaped groove of the C-shaped hoisting plate.
The utility model has the beneficial effects that:
(1) the dismounting tool is suitable for bearing hoisting work during installation, debugging and overhaul of the turbo generator unit, wherein the C-shaped hoisting plate is designed into the C-shaped groove, so that the interference position of the upper cylinder body enters the groove of the C-shaped ring, and the problem of narrow hoisting space can be solved.
(2) The dismounting tool is fast to install, only the lifting plate needs to be fixed on the bearing to be dismounted, the whole installation process is very convenient, and the maintenance is simple.
(3) The dismounting tool is convenient and reliable in the lifting process, solves the problem that the bearing cannot be directly and vertically lifted, and ensures that the bearing can be stably lifted out of the cylinder.
Drawings
FIG. 1 is a schematic view of a disassembly and assembly tool;
FIG. 2 is an exploded view of the tool parts;
in the figure, the 1-C type hoisting plate; 2-lifting the hanger plate; 3-bolt A; 4-a nut; 5-connecting plates; 6-bolt B; 7-bolt C; 8-a connecting bond; 9-bolt D; 10-bearing.
Detailed Description
The utility model is described in further detail below with reference to the figures and the embodiments.
The tool for disassembling and assembling the generator bearing of the nuclear power station is used for hoisting the generator bearing and comprises a C-shaped hoisting plate 1, a hoisting plate 2, a bolt, a nut 4, a connecting plate 5 and a connecting key 8.
C type hoist and mount board 1 on process have C type recess, make during hoist and mount the groove department that upper cylinder body interference position got into C type hoist and mount board 1, overcome the narrow and small problem in hoist and mount space. The top of the C-shaped hoisting plate 1 is provided with a hoisting ring which is conveniently connected with a large hoisting tool.
Eight transverse bolt holes and a key groove are symmetrically processed on the lower left connecting surface of the C-shaped hoisting plate 1 and the upper part of the connecting plate 5 respectively, and a connecting key 8 is fixedly arranged in the key groove of the C-shaped hoisting plate 1 through a bolt C7. When the C-shaped hoisting plate is combined, the key groove on the connecting plate 5 is buckled on the connecting key 8 of the C-shaped hoisting plate 1, so that the connecting key and the connecting plate are centered, and the C-shaped hoisting plate 1 is fixedly connected with the connecting plate 5 through the bolt B6 and the nut 4.
The hoisting plate 2 is an arc-shaped piece, two transverse bolt holes are processed in the middle of the hoisting plate, and two radial bolt holes are respectively processed in two legs of the hoisting plate. The middle part of the lifting plate 2 is fixed with the lower part of the connecting plate 5 through two bolts D9, and two feet of the lifting plate 2 are respectively fixedly connected with the dismounting bearing 10 through bolts A3.
During hoisting, the bearing 10 is vertically hoisted to a lower height firstly and does not touch the upper cylinder body, then the bearing is horizontally hoisted to the outer side of the cylinder body, and finally the bearing is vertically hoisted again so as to avoid collision and damage in the hoisting process.
While there have been shown and described what are at present considered the fundamental principles of the utility model, its essential features and advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The utility model provides a nuclear power station generator bearing assembly and disassembly tools which characterized in that: comprises a C-shaped hoisting plate (1), a hoisting plate (2), a bolt, a nut (4) and a connecting plate (5);
a C-shaped groove is processed on the C-shaped hoisting plate (1);
transverse bolt holes are symmetrically formed in the left side connecting surface of the lower portion of the C-shaped hoisting plate (1) and the upper portion of the connecting plate (5), and the C-shaped hoisting plate (1) is fixedly connected with the connecting plate (5) through bolts B (6) and nuts (4);
the hoisting plate (2) is an arc-shaped piece, a transverse bolt hole is processed in the middle of the hoisting plate, and radial bolt holes are respectively processed at two legs of the hoisting plate;
the middle part of the lifting plate (2) is fixed with the lower part of the connecting plate (5) through a bolt D (9), and two feet of the lifting plate (2) are fixedly connected with a dismounting bearing (10) through bolts A (3) respectively.
2. The tool for disassembling and assembling a bearing of a generator in a nuclear power plant as claimed in claim 1, wherein: key grooves are symmetrically processed on the lower left side connecting surface of the C-shaped hoisting plate (1) and the upper portion of the connecting plate (5), and connecting keys (8) are fixedly arranged in the key grooves of the C-shaped hoisting plate (1) through bolts C (7).
3. The tool for disassembling and assembling a bearing of a generator in a nuclear power plant as claimed in claim 1, wherein: and a hoisting ring is arranged at the top of the C-shaped hoisting plate (1) and is used for connecting a large hoisting tool.
4. The tool for disassembling and assembling a bearing of a generator in a nuclear power plant as claimed in claim 1, wherein: during hoisting, the interference position of the upper cylinder body is positioned at the C-shaped groove of the C-shaped hoisting plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122717393.6U CN216303028U (en) | 2021-11-08 | 2021-11-08 | Nuclear power station generator bearing assembly and disassembly tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122717393.6U CN216303028U (en) | 2021-11-08 | 2021-11-08 | Nuclear power station generator bearing assembly and disassembly tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216303028U true CN216303028U (en) | 2022-04-15 |
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ID=81119353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122717393.6U Active CN216303028U (en) | 2021-11-08 | 2021-11-08 | Nuclear power station generator bearing assembly and disassembly tools |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216303028U (en) |
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2021
- 2021-11-08 CN CN202122717393.6U patent/CN216303028U/en active Active
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