CN106584347A - Nuclear power steam-turbine generator bearing bush turnover tool and method - Google Patents
Nuclear power steam-turbine generator bearing bush turnover tool and method Download PDFInfo
- Publication number
- CN106584347A CN106584347A CN201610957585.5A CN201610957585A CN106584347A CN 106584347 A CN106584347 A CN 106584347A CN 201610957585 A CN201610957585 A CN 201610957585A CN 106584347 A CN106584347 A CN 106584347A
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- CN
- China
- Prior art keywords
- nuclear power
- tool
- rotor
- turbine generator
- bearing shell
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention provides a nuclear power steam-turbine generator bearing bush turnover tool. The tool is characterized by comprising an omega-shaped support which is composed of an arc-shaped part and horizontal extending parts located on the two sides of the bottom of the arc-shaped part. Holes are formed in the two horizontal extending parts of the omega-shaped support correspondingly. Two setting components fixedly connect the omega-shaped support with a bearing bush after passing through the two holes. The shape of the arc-shaped part of the omega-shaped support adapts to that of a rotor. According to the other technical scheme, the invention provides a nuclear power steam-turbine generator bearing bush turnover method. The tool and the method break through restriction of traditional brush turnover inertial thinking, the innovative method is adopted for simply and effectively solving the problem that in the bush turnover process of a large-capacity steam-turbine generator and especially a nuclear power generator, galling is generated easily, the requirement for assembling and disassembling a steam turbine bearing bush during actual production is met, and the tool has high popularization value in the assembling process of the similar bearing bush of the large-capacity generator.
Description
Technical field
The present invention relates to a kind of instrument turned over watt for steam turbine generator (especially nuclear power steam turbine generator) bearing shell and
A watt method is turned over using the instrument.
Background technology
With reference to Fig. 1 and Fig. 2, generator is the main equipment of power plant, and the rotor weight of generator is mainly on bearing shell 2.Greatly
The dynamo bearing major part of capacity adopts end bracket type bearing, i.e. bearing shell 2, bearing spider (watt seat 1) and end cap is integrated sets
Meter.The generally upper lower half circle of bearing shell 2 breathes out not structure, and bearing shell 2 is supported on watt seat 1, and watt seat 1 is then supported on the inner headed face of end cap
On.Bearing shell 2 is generally sphere-contact with both watt seats 1.Generator needs to dismount bearing shell 2 often during installation or maintenance.
Traditional bearing shell method for dismounting is mainly：First split out upper half-bearing, slightly raise generator amature so that rotor and
Bearing shell 2 is separated, and bearing shell 2 is skidded off along contacting Internal Spherical Surface with watt seat 1 by the applying power of soft lifting rope 3.According to axle during installation bearing shell 2
Watt remove contrary order operation.
The Internal Spherical Surface of generator manufacture process, bearing shell spherical outside surface and watt seat need to carry out contact surface grinding according to technological requirement,
Therefore there are spikes/low- points in contact surface.For small-load generators, because bearing quality is light, the height on contact surface is to turning over a watt shadow
Ring little, will not typically produce more serious plucking and pull problem.But for large sized unit, particularly nuclear power turbine generator
Arbor watt, its quality reaches greatly more than 3t, so easily produces plucking phenomenon during turning over watt.After generation plucking,
Vicious circle can be produced during turning over watt and then causes plucking to pull phenomenon aggravation, so not only to product appearance quality generation
Affect, also changing can affect the contact performance of bearing shell and bearing spider, and then the more serious problem such as induced vibration.
The content of the invention
The technical problem to be solved in the present invention be prevent from turning over watt during produce plucking phenomenon.
In order to solve above-mentioned technical problem, a technical scheme of the present invention there is provided a kind of nuclear power steam turbo generator
Watt turn over bricklayer tool, it is characterised in that include the Ω types constituted by curved portions and positioned at the horizontal extension of curved portions two bottom sides
Support, has hole on two horizontal extensions of Ω type supports, two tightening parts are through after two holes by Ω type supports
It is connected with bearing shell, shape and the rotor shapes of the curved portions of Ω type supports are adapted.
Preferably, multiple backing plates for preventing damaging rotor are provided with towards in the one side of rotor in the curved portions.
Preferably, the backing plate adopts copper pad.
Another technical scheme of the present invention there is provided a kind of nuclear power steam turbine generator bearing shell and turn over a watt method, and its feature exists
In comprising the following steps：
Step 1, upper half-bearing is split out after, by tightening part by the above-mentioned Ω types support and lower semiaxis for turning over bricklayer tool
Watt it is connected；
Step 2, by it is above-mentioned turn over bricklayer tool and low brass to knocking certain clamp force after so that turn over bricklayer tool and rotor shape
Into gap；
Step 3, by rotor raise it is a certain amount of after, low brass is supported with rotor one because of the above-mentioned anchor ear for turning over bricklayer tool
Rising and raise and depart from a watt seat, then rotate low brass by flexible steel cable pulling force carries out turning over watt.
The present invention breaks through tradition and turns over the restriction of watt inertial thinking, simple using innovative method and efficiently solve big
Capacity steam turbine generator is particularly during nuclear power generator is turned over watt the difficult problem for easily producing plucking, meets steamer in actual production
The requirement that arbor watt is installed and split out, the larger promotional value during similar heavy-duty generator Sleeve assembling.
Description of the drawings
Fig. 1 is the schematic diagram (without top bearing shell) in an existing direction for turning over watt method；
Fig. 2 is the schematic diagram (having top bearing shell) in an existing direction for turning over watt method；
The application schematic diagram of the instrument that Fig. 3 is provided for the present invention.
Specific embodiment
To become apparent the present invention, hereby with preferred embodiment, the present invention will be further described.
With reference to Fig. 3, a kind of nuclear power steam turbine generator bearing shell that the present invention is provided turns over bricklayer tool, it is characterised in that include by
The Ω types support 4 that curved portions and the horizontal extension positioned at curved portions two bottom sides are constituted, two of Ω types support 4 are horizontal-extending
Hole is had in portion, two tightening parts are connected on Ω types support 4 and bearing shell 2 through after two holes, Ω types support 4
The shape of curved portions is adapted with rotor shapes, is provided with multiple for preventing damaging rotor towards in the one side of rotor in curved portions
Copper pad 5.
Ω types support 4 is carbon steel plate, and its structure needs smoothly connect with bearing shell, and ensures to bear with some strength
Instrument and rotor clearance remain to satisfaction and turn over a watt requirement when weight of rotor deforms.
Tightening part is using full flight screw and nut so that the tool shoe connection that the present invention is provided uses full thread spiral shell
Bar and nut, it is ensured that instrument is smoothly installed during attachment/detachment bearing shell.
A kind of nuclear power steam turbine generator bearing shell that the present invention is provided turns over a watt method, comprises the following steps：
Step 1, upper half-bearing is split out after, by tightening part by turn over bricklayer tool Ω types support 4 connect with low brass 2
Connect fixation；
Step 2, bricklayer tool will be turned over and low brass 2 pairs is knocked after certain clamp force so that turn over bricklayer tool and between rotor is formed
Gap；
Step 3, by rotor raise it is a certain amount of after, low brass 2 because turn over bricklayer tool anchor ear support as rotor is lifted together
It is high and depart from watt seat 1, then carry out turning over watt by flexible steel cable pulling force rotation low brass 2.This avoid bearing shell and turn over a watt mistake
Contact with bearing spider in journey, the problem of the plucking for fundamentally solving.
The present invention has effectively broken conventional bearing shell during turning over watt along the method that it is routed up with bearing spider inner headed face, adopts
Bearing shell is separated with bearing spider with hood type, the plucking problem that the conventional method for fundamentally solving easily is produced.
Claims (4)
1. a kind of nuclear power steam turbine generator bearing shell turns over bricklayer tool, it is characterised in that include by curved portions and positioned at curved portions bottom
Ω type supports (4) of the horizontal extension composition of both sides, has a hole on two horizontal extensions of Ω type supports (4), and two
Individual tightening part is connected Ω type supports (4) with bearing shell (2) through after two holes, the shape of the curved portions of Ω type supports (4)
Shape is adapted with rotor shapes.
2. a kind of nuclear power steam turbine generator bearing shell as claimed in claim 1 turns over bricklayer tool, it is characterised in that in the curved portions
Multiple backing plates for preventing damaging rotor are provided with towards the one side of rotor.
3. a kind of nuclear power steam turbine generator bearing shell as claimed in claim 2 turns over bricklayer tool, it is characterised in that the backing plate is adopted
Copper pad (5).
4. a kind of nuclear power steam turbine generator bearing shell turns over a watt method, it is characterised in that comprise the following steps：
Step 1, upper half-bearing is split out after, by tightening part will turn over as claimed in claim 1 bricklayer tool Ω type supports
(4) it is connected with low brass (2)；
Step 2, by described in claim 1 turn over bricklayer tool and low brass (2) to knocking certain clamp force after so that turn over bricklayer tool
Gap is formed with rotor；
Step 3, by rotor raise it is a certain amount of after, low brass (2) because turn over as claimed in claim 1 bricklayer tool anchor ear support
As a watt seat (1) is raised together and departed to rotor, then low brass (2) is rotated by flexible steel cable pulling force carry out turning over watt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957585.5A CN106584347A (en) | 2016-11-03 | 2016-11-03 | Nuclear power steam-turbine generator bearing bush turnover tool and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957585.5A CN106584347A (en) | 2016-11-03 | 2016-11-03 | Nuclear power steam-turbine generator bearing bush turnover tool and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106584347A true CN106584347A (en) | 2017-04-26 |
Family
ID=58590584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610957585.5A Pending CN106584347A (en) | 2016-11-03 | 2016-11-03 | Nuclear power steam-turbine generator bearing bush turnover tool and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106584347A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107443300A (en) * | 2017-09-01 | 2017-12-08 | 河南柴油机重工有限责任公司 | A kind of use for diesel engine crank spindle watt extracting tool and method for dismounting |
| CN109969930A (en) * | 2019-04-28 | 2019-07-05 | 中国电建集团贵州工程有限公司 | A kind of novel hanger that rotation is scraped watt |
| CN110550537A (en) * | 2019-08-27 | 2019-12-10 | 华能南京金陵发电有限公司 | Large-scale thermal power factory overhauls generator axle bush tile turning tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2483137Y (en) * | 2001-06-24 | 2002-03-27 | 桑有富 | Apparatus for restoring bush for reparing steam turbine |
| KR200309959Y1 (en) * | 2002-12-28 | 2003-04-11 | 한전기공주식회사 | Bearing assembling device of turbin |
| CN200978180Y (en) * | 2006-11-13 | 2007-11-21 | 中国北车集团北京南口机车车辆机械厂 | Special-purpose hanger for spiral lobe compressor rotor |
| CN201511230U (en) * | 2009-10-14 | 2010-06-23 | 岑东 | Tool for turning bearing bush |
| CN202367503U (en) * | 2011-12-22 | 2012-08-08 | 襄阳南车电机技术有限公司 | Locomotive traction motor axle suspension bush machining device |
| CN204913214U (en) * | 2015-08-25 | 2015-12-30 | 高德占 | Specialized tool of dismouting compressor main shaft tile |
-
2016
- 2016-11-03 CN CN201610957585.5A patent/CN106584347A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2483137Y (en) * | 2001-06-24 | 2002-03-27 | 桑有富 | Apparatus for restoring bush for reparing steam turbine |
| KR200309959Y1 (en) * | 2002-12-28 | 2003-04-11 | 한전기공주식회사 | Bearing assembling device of turbin |
| CN200978180Y (en) * | 2006-11-13 | 2007-11-21 | 中国北车集团北京南口机车车辆机械厂 | Special-purpose hanger for spiral lobe compressor rotor |
| CN201511230U (en) * | 2009-10-14 | 2010-06-23 | 岑东 | Tool for turning bearing bush |
| CN202367503U (en) * | 2011-12-22 | 2012-08-08 | 襄阳南车电机技术有限公司 | Locomotive traction motor axle suspension bush machining device |
| CN204913214U (en) * | 2015-08-25 | 2015-12-30 | 高德占 | Specialized tool of dismouting compressor main shaft tile |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107443300A (en) * | 2017-09-01 | 2017-12-08 | 河南柴油机重工有限责任公司 | A kind of use for diesel engine crank spindle watt extracting tool and method for dismounting |
| CN109969930A (en) * | 2019-04-28 | 2019-07-05 | 中国电建集团贵州工程有限公司 | A kind of novel hanger that rotation is scraped watt |
| CN110550537A (en) * | 2019-08-27 | 2019-12-10 | 华能南京金陵发电有限公司 | Large-scale thermal power factory overhauls generator axle bush tile turning tool |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170426 |
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| RJ01 | Rejection of invention patent application after publication |