CN108448833B - A kind of generator amature and big axis connecting shaft method - Google Patents
A kind of generator amature and big axis connecting shaft method Download PDFInfo
- Publication number
- CN108448833B CN108448833B CN201810208388.2A CN201810208388A CN108448833B CN 108448833 B CN108448833 B CN 108448833B CN 201810208388 A CN201810208388 A CN 201810208388A CN 108448833 B CN108448833 B CN 108448833B
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- Prior art keywords
- generator
- rotor
- motor shaft
- brake
- high pressure
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a kind of generator amatures and big axis connecting shaft method, and symmetry direction respectively sets up one piece of dial gauge on the braking loop interface of rotor, for monitoring rotor raising, falling height difference；Brake is raised using high pressure oil device, and both direction is symmetrically inserted into guide pin on generator's motor shaft, rotor is slowly steadily put on the brake；The bolt that rotor and generator's motor shaft are stretched with hydraulic elongator, by being oriented to finger setting for generator's motor shaft pull-up；Investment jacks up high pressure oil, by the mechanical caging of brake to backspin, discharges oil pressure, rotor and thrust collar and generator's motor shaft entire lowering after reserving dropping distance；Percentage meter reading is observed, the height difference that control is promoted and fallen is finally completed the connecting shaft of rotor and generator's motor shaft.The method of the present invention reduces resource input in the case where quality assurance safety, reduces difficulty of construction, improves production efficiency.
Description
Technical field
The present invention relates to generator amature mounting technique field, especially a kind of generator amature and big axis connecting shaft method.
Background technique
Taking food as usual power station 1# unit completes runner, turbine shaft, generator's motor shaft installment work, after rotor lifting, in standard
Discovery generator's motor shaft is in heeling condition when standby rotor and generator's motor shaft connecting shaft, causes rotor lower flange face and generator big
Shaft flange cannot be in close contact；I.e. generator's motor shaft upper surface elevation location is consistent with design position, generator's motor shaft and water wheels
Arbor, runner have connected, and since the big axis of the hydraulic turbine, runner tilt, do not go under runner, are limited upwards by top cover seam, can be upward
Lifting distance is less than 20mm.To solve the above problems, scene proposes solution is: it is big to remove rotor, lower bearing bracket, generator
The components such as axis, using bridge machine lifting, jack cooperation adjustment runner, until runner verticality, flatness are met the requirements after
Again dress is being returned.The method period is long, cost is big, influences the unit generation duration.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of generator amature and big axis connecting shaft method, solution is being installed
Process because generator's motor shaft tilt, under conditions of not removing the components such as thrust bearing, lower bearing bracket, rotor, generator amature with
The problem of generator's motor shaft connecting shaft.Using the connecting shaft method, in the case where quality assurance safety, reduce resource input, drops
Low difficulty of construction, improves production efficiency.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of generator amature and big axis connecting shaft method, comprising the following steps:
Step 1: it is before hoisting rotor, generator's motor shaft is placed in the middle, and the upper surface of generator's motor shaft is leveled；
Step 2: after the thrust collar in thrust bearing is connected thrust, then thrust bearing being hung in into machine and is cheated, guarantee oil
Room facing-up is completed, and gap reaches requirement；
Step 3: adjustment brake elevation and level；Investment jacks up high pressure oil, and brake is lifted to certain position, is being sent out
Both direction is symmetrically inserted into guide pin on the big axis of motor, then rotor hung in machine cheats and pass through guide pin and slowly fall and be put into braking
On device；It is locked with the mechanical caging of brake, lays down brake oil pressure；
Step 4: thrust collar being sling and is connect with rotor；
Step 5: after the completion of thrust collar is connect with rotor, the bolt of rotor and generator's motor shaft is stretched with hydraulic elongator,
By guiding finger setting by generator's motor shaft pull-up certain altitude, and then reduce between rotor stopper and generator's motor shaft seam allowance
Distance；
Step 6: investment jacks up high pressure oil, by the mechanical caging of brake to backspin, discharges oil pressure after reserving decline space；
Again by rotor and thrust collar and generator's motor shaft entire lowering, generator's motor shaft is lifted with hydraulic elongator again at this time, into one
Step reduces the distance between rotor stopper and generator's motor shaft seam allowance；
Step 7: investment jacks up high pressure oil, and the mechanical caging of brake is threaded to downwards minimum point, slowly lays down high pressure oil,
Rotatable parts are placed on thrust bearing, the connecting shaft for completing rotor and generator's motor shaft works.
Further, the step 6 is for reducing the distance between rotor stopper and generator's motor shaft seam allowance, several times
It carries out.
Compared with prior art, the beneficial effects of the present invention are: not removing the portions such as rotor, lower bearing bracket, generator's motor shaft
Under conditions of part, rotor and generator's motor shaft are adjusted using the space being lifted upwards, it is easy to operate, it does not need to carry out secondary tear open
Fill work；In the case where quality assurance safety, reduce resource input, reduce difficulty of construction, improves production efficiency.
Detailed description of the invention
Fig. 1 is a kind of generator amature of the present invention and big axis connecting shaft method complete layout.
Fig. 2 is the piping arrangement of brake in the present invention.
Fig. 3 is the layout drawing of thrust bearing in the present invention.
In figure: 1- rotor；2- thrust bearing；3- generator's motor shaft；4- turbine shaft；5- brake；6- dial gauge；7- bridge
Machine hook；8- equalizer bar；9- high-pressure oil pipe；10- replys tracheae；11- brakes tracheae；12- thrust；13- thrust oil baffle；
14- rotor field spider；15- thrust collar；16- oil groove cover plate；17- thrust bearing oil sump；18- lower bearing bracket.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
General thought of the present invention is: symmetry direction respectively sets up one piece of dial gauge 6 on the braking loop interface of rotor 1, uses
To monitor 1 raising of rotor, fall height difference.Brake 5 is raised using high pressure oil device, and two sides on generator's motor shaft 3
To symmetrical insertion guide pin, rotor 1 is slowly steadily put on brake 5.Rotor 1 and generator are stretched with hydraulic elongator
The bolt of big axis 3, by being oriented to finger setting for 3 pull-up of generator's motor shaft；Investment jacks up high pressure oil, by the mechanical lock of brake 5
Backspin is oriented, discharges oil pressure, rotor 1 and 3 entire lowering of thrust collar 15 and generator's motor shaft after reserving dropping distance.Observe percentage
Meter reading, the height difference that control is promoted and fallen, is finally completed the connecting shaft of rotor 1 Yu generator's motor shaft 3.
Specific example, comprising the following steps:
1) now that generator's motor shaft 3 is placed in the middle since generator's motor shaft 3 is eccentric before hoisting rotor 1, and by generator's motor shaft 3
Upper surface leveling；
2) machine hole is hung in after thrust collar 15 being connected thrust 12, guarantees that grease chamber facing-up is completed, gap reaches requirement；
3) 5 elevation of brake and level are adjusted, due to being installed the tiling of rear brake 5 and the braking interannular of rotor 1
Gap is 10mm, and investment jacks up high pressure oil, and brake 5 is raised 35mm；Both direction is symmetrically inserted into guiding on generator's motor shaft 3
Pin, rotor 1 hang in machine hole and slowly fall and be put on brake 5 by guide pin, at this time 1 lower flange face of rotor and generator's motor shaft
3 upper flange surface depth displacement 25mm, seam allowance differ 5mm, i.e., by 1 integral raising 25mm of rotor (comparing stationary rational conditions).For peace
For the sake of complete, locked at this time with the mechanical caging of brake 5, lay down brake oil pressure；
4) thrust collar 15 is sling and is connect with rotor 1；
5) after the completion of thrust collar 15 is connect with rotor 1, the bolt of rotor 1 and generator's motor shaft 3 is stretched with hydraulic elongator,
By guiding finger setting by 3 pull-up 10mm of generator's motor shaft, the seam allowance of rotor 1 and the seam allowance of generator's motor shaft 3 have been entered at this time
5mm, also poor 15mm；
6) investment jacks up high pressure oil, by the mechanical caging of brake 5 to backspin, discharges oil after reserving dropping distance 10mm
Pressure, the slow release of when release；Rotor 1 and 3 entire lowering 10mm of thrust collar 15 and generator's motor shaft, use hydraulic elongator again at this time
Generator's motor shaft 3 is lifted 10mm, the seam allowance of the seam allowance of rotor 1 and generator's motor shaft 3 is entered 15mm, also poor 5mm at this time；
7) investment jacks up high pressure oil, by the mechanical caging of brake 5 to backspin, discharges oil after reserving dropping distance 10mm
Pressure, the slow release of when release；Rotor 1 and 3 entire lowering 10mm of thrust collar 15 and generator's motor shaft, use hydraulic elongator again at this time
Generator's motor shaft 3 is lifted 5mm, the seam allowance of the seam allowance of rotor 1 and generator's motor shaft 3 is entered 20mm at this time；
8) investment jacks up high pressure oil, and the mechanical caging of brake 5 is threaded to downwards minimum point, slowly lays down high pressure oil, will
Rotatable parts are placed on thrust bearing 2, and the connecting shaft for being finally completed rotor 1 and generator's motor shaft works.
It should be noted in implementation process of the present invention: when the movement of operation oil pressure, release, the reading of dial gauge 6 need to be paid close attention to.This hair
Bright method is easy to operate, makes full use of existing equipment material, avoids secondary dismounting, reduces resource input；Guaranteeing to construct
Under the premise of safe mass, the construction period is shortened, reduces construction cost.
Claims (2)
1. a kind of generator amature and big axis connecting shaft method, which comprises the following steps:
Step 1: before hoisting rotor (1), between two parties by generator's motor shaft (3), and by the upper surface tune of generator's motor shaft (3)
It is flat；
Step 2: hanging in machine after thrust collar (15) connection thrust (12) in thrust bearing (2), then by thrust bearing (2)
Hole guarantees that grease chamber facing-up is completed, and gap reaches requirement；
Step 3: adjustment brake (5) elevation and level；Investment jacks up high pressure oil, and brake (5) is lifted to certain position,
Both direction is symmetrically inserted into guide pin on generator's motor shaft (3), then cheats and pass through guide pin rotor (1) machine of hanging in and slowly fall
It is put on brake (5)；It is locked with the mechanical caging of brake (5), lays down brake (5) oil pressure；
Step 4: thrust collar (15) being sling and is connect with rotor (1)；
Step 5: after the completion of thrust collar (15) is connect with rotor (1), stretching rotor (1) and generator's motor shaft with hydraulic elongator
(3) bolt by guiding finger setting by generator's motor shaft (3) pull-up certain altitude, and then reduces rotor (1) seam allowance and power generation
The distance between the big axis of machine (3) seam allowance；
Step 6: investment jacks up high pressure oil, by the mechanical caging of brake (5) to backspin, discharges oil pressure after reserving decline space；
Again by rotor (1) and thrust collar (15) and generator's motor shaft (3) entire lowering, at this time again with hydraulic elongator by generator's motor shaft
(3) it is lifted, further reduces the distance between rotor (1) seam allowance and generator's motor shaft (3) seam allowance；
Step 7: investment jacks up high pressure oil, and the mechanical caging of brake (5) is threaded to downwards minimum point, slowly lays down high pressure oil,
Rotatable parts are placed on thrust bearing (2), the connecting shaft for completing rotor (1) and generator's motor shaft (3) works.
2. a kind of generator amature as described in claim 1 and big axis connecting shaft method, which is characterized in that the step 6 is used for
The distance between rotor (1) seam allowance and generator's motor shaft (3) seam allowance are reduced, is performed in multiple times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810208388.2A CN108448833B (en) | 2018-03-14 | 2018-03-14 | A kind of generator amature and big axis connecting shaft method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810208388.2A CN108448833B (en) | 2018-03-14 | 2018-03-14 | A kind of generator amature and big axis connecting shaft method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108448833A CN108448833A (en) | 2018-08-24 |
| CN108448833B true CN108448833B (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810208388.2A Active CN108448833B (en) | 2018-03-14 | 2018-03-14 | A kind of generator amature and big axis connecting shaft method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112061967A (en) * | 2020-09-09 | 2020-12-11 | 重庆水轮机厂有限责任公司 | On-site installation method of hydro-generator rotor bracket |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482443A (en) * | 2008-12-16 | 2009-07-15 | 哈尔滨电机厂有限责任公司 | Rotor static pressure bearing balance technique for large mixed-flow turbine |
| CN103612092A (en) * | 2013-11-21 | 2014-03-05 | 国家电网公司 | Suspension-type hydroelectric generating set thrust head demounting process |
| CN103956865A (en) * | 2014-05-12 | 2014-07-30 | 哈尔滨电机厂有限责任公司 | Technique for mounting magnet yokes in same hydro-generator pit of stator and rotor of hydro-generator in stacked mode |
| CN203939618U (en) * | 2014-05-15 | 2014-11-12 | 国家电网公司 | Runner-plate pump thrust-bearing and oil groove thereof |
| EP3261224A3 (en) * | 2016-06-23 | 2018-01-17 | Robert Bosch GmbH | Electric machine with a rotor and method for producing the electric machine |
-
2018
- 2018-03-14 CN CN201810208388.2A patent/CN108448833B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482443A (en) * | 2008-12-16 | 2009-07-15 | 哈尔滨电机厂有限责任公司 | Rotor static pressure bearing balance technique for large mixed-flow turbine |
| CN103612092A (en) * | 2013-11-21 | 2014-03-05 | 国家电网公司 | Suspension-type hydroelectric generating set thrust head demounting process |
| CN103956865A (en) * | 2014-05-12 | 2014-07-30 | 哈尔滨电机厂有限责任公司 | Technique for mounting magnet yokes in same hydro-generator pit of stator and rotor of hydro-generator in stacked mode |
| CN203939618U (en) * | 2014-05-15 | 2014-11-12 | 国家电网公司 | Runner-plate pump thrust-bearing and oil groove thereof |
| EP3261224A3 (en) * | 2016-06-23 | 2018-01-17 | Robert Bosch GmbH | Electric machine with a rotor and method for producing the electric machine |
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| Publication number | Publication date |
|---|---|
| CN108448833A (en) | 2018-08-24 |
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