CN106703907B - Stepless speed regulation turbine jigger force-increasing device - Google Patents
Stepless speed regulation turbine jigger force-increasing device Download PDFInfo
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- CN106703907B CN106703907B CN201611064053.5A CN201611064053A CN106703907B CN 106703907 B CN106703907 B CN 106703907B CN 201611064053 A CN201611064053 A CN 201611064053A CN 106703907 B CN106703907 B CN 106703907B
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- bearing support
- holder
- speed reducer
- guide
- motor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/34—Turning or inching gear
- F01D25/36—Turning or inching gear using electric motors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention belongs to nuclear power station service technique fields, more particularly to a kind of stepless speed regulation turbine jigger force-increasing device, purpose is not make structure change to former online former barring gear, under the premise of not influencing its normal function, on the online barring gear of Steam Turbine, the auxiliary barring gear disk that installing additional quickly to come into operation turns turbine rotor, while ensureing rotor and safe other mechanisms, rotor disk transfer efficient is improved, operation labor intensity is reduced.It is characterized in that, it includes jiggering driving device, coupling band, bearing support, gag lever post and pedestal；Jiggering driving device is fixed on the upper surface of bearing support, and coupling band is fixed on the lower end of jiggering driving device, stretches into the inside of bearing support, is located at the top of guide's motor；Gag lever post upper end is fixedly connected with the outer rim on bearing support top, and lower part is connect with the Corner Strapped of pedestal upper surface.Servo motor driving is dexterously utilized in the present invention, and the structures such as antitorque reinforcement of gag lever post have reached ideal effect.
Description
Technical field
The invention belongs to nuclear power station service technique fields, and in particular to a kind of stepless speed regulation turbine jigger force-increasing device.
Background technology
Turning gear is the essential component part of steam turbine, especially large steam turbine, once jiggering damage or
It cannot put into time, massive shafting, it is difficult to jiggering is carried out manually, the emergent jiggering of driving, but time meeting can only be used sometimes
It drags longer, often leads to the substantial equipments accident such as permanent bending of rotor.
Center runs nearly 700 tons of the whole root system weight of three factory's steam turbine generators, has only matched a set of motor-driven turning mechanism.Once turning
There is cold bend(ing) in son, wants to cannot achieve periodically 180 ° of operations of overturning using first wife's motor disc rotor.In addition, being examined in unit
During repairing, orientation disk turn is also needed when executing the work such as clutch dismounting, rotor alignment, initially with driving a vehicle come disc rotor,
It has installed jigger force-increasing device additional above former turning motor afterwards, has borrowed electric wrench auxiliary and lasting, orientation disc rotor can be completed
Operation, thus reduce large number of rows it is automobile-used when.This increased set force-increasing mechanism increases though can realize orientation, continue disk turn
Power apparatus support intensity is weaker, cannot meet the needs of large torque continuous jiggering；It is limited by torque wrench output torque, input power
Square is limited, and disk has to a lubrication pressure before turning and is increased to 15.5MPa by common 10MPa, often jacking(oil) pump is made to contribute
The value that transfinites causes motor heat to be jumped, and disk rotating speed degree is slow, and (disk 1 encloses rotor and wants 3 hours or so.)
Invention content
The purpose of the present invention is not making structure change to former online former barring gear, the premise of its normal function is not influenced
Under, on the online barring gear of Steam Turbine, the auxiliary barring gear disk that installing additional quickly to come into operation turns turbine rotor, protects
While demonstrate,proving rotor and safe other mechanisms, rotor disk transfer efficient is improved, reduces operation labor intensity.
The invention is realized in this way：
A kind of stepless speed regulation turbine jigger force-increasing device, including jiggering driving device, coupling band, bearing support, gag lever post and
Pedestal；Jiggering driving device is fixed on the upper surface of bearing support, and coupling band is fixed on the lower end of jiggering driving device, stretches into branch
The inside of bolster is located at the top of guide's motor；Gag lever post upper end is fixedly connected with the outer rim on bearing support top, lower part and pedestal
The Corner Strapped of upper surface connects.
Driving device as described above includes servo motor and speed reducer；Speed reducer is mounted on the lower end of servo motor；Subtract
Fast machine is fixed on the upper surface of bearing support, and the output shaft of speed reducer stretches into behind the upper surface of bearing support inside bearing support.
Bearing support as described above includes holder A and holder B；The semicircle of semi-circular through hole is provided with centered on the tops holder A
Shape plate, middle part are " well " font fence, and lower part is semi-circular shape plate；It is provided with holder card slot on holder A lower semicircular annular slabs；
The structure of holder B is with holder A along axisymmetrical where the semicircular plate center of circle of the tops holder A；Holder A and holder B pass through split spiral shell
Bolt is fixedly connected as an entirety.
As described above multiple height adjustment bolts are evenly equipped in the lower part of holder A and holder B.
Coupling band generally cylindrical as described above, upper end are band keyway unthreaded hole, and lower end is and guide's motor shaft head
The matched square hole of square tenon；When needing jiggering, coupling band moves down, and square hole is coupled with guide's motor shaft head square tenon, speed reducer output
Rotating speed and torque are transmitted to guide's motor shaft；Sliding on coupling band when exiting jiggering, square hole is de- with guide's motor shaft head square tenon
It opens, is locked it on speed reducer output shaft by the fastening bolt on coupling band.
Base body part as described above is rectangle tabular, and cylinder is provided in the middle part of rectangular slab upper surface
Flange face, guide's motor base are located on cylindrical flange face；The upper surface in cylindrical flange face is provided with guide's motor
Base boss；There are two guide's motor base boss is total, along axisymmetrical setting where the upper surface center of circle of cylindrical flange face；First
Conductive machine base boss is inserted into holder card slot, is fastened by puller bolt.
Gag lever post as described above includes upper journal, right handed worm, screw-casing, left-hand screw bar and down journal；Upper journal is solid
It is scheduled in the outer rim on bearing support top；The upper end of right handed worm is mounted on upper journal, and the upper end of lower end and screw-casing connects；Spiral shell
The lower end of rotation set is connect with the upper end of left-hand screw bar；The lower end of left-hand screw bar is mounted on down journal；Down journal is fixed on pedestal
On the angle of upper surface；Gag lever post shares four, and upper end is distributed in the outer rim on bearing support top, and lower end is fixed on the base end face
Four angles on.
As described above coupling band, bearing support, gag lever post and pedestal is all made of steel alloy or carbon structural steels are made；Servo
Motor uses SIEMENS 1FL6094-1AC61-0AA1, power 5Kw, rotating speed 2000r/min, nominal torque 23.9N.m, maximum
Torque 70N.m；Speed reducer uses elaborate servo planetary reducer FB220-200-S2-P2, speed ratio 200:1, specified bearing torque
2400N.m, maximum bearing torque 4500N.m.
Driving device as described above includes worm-gear speed reducer and handwheel；Worm-gear speed reducer is fixed on bearing support
Upper surface on, output shaft pass through bearing support upper surface after stretch into inside bearing support；Handwheel is mounted on worm-gear speed reducer
On.
Worm-gear speed reducer as described above uses worm-gear speed reducer CWS100-10-I, speed ratio 10:1, handwheel is straight
Diameter is 0.85m, is made of stainless steel.
The beneficial effects of the invention are as follows：
The present invention includes jiggering driving device, coupling band, bearing support, gag lever post and pedestal.Center runs three factory's 2# units
In April, 2016, barring gear has been installed additional, in the case where bearing shell fuel feeding is to 13MPa, steamer and generator amature can be smoothly real
Now disk turns.Start steadily without impact, stepless speed regulation, rotating speed and torque monitor function are normal, easy to operate.Rotor disk turns around most
Short time is reduced to 30 minutes.In subsequent steam turbine and generator maintenance work, equipment safety has been ensured to greatest extent, has been saved
Many manpower and materials, greatly improve overhaul efficiency.Ensuring online barring gear and Steam Turbine, especially guide's jiggering electricity
The safety of machine less under the premise of the bringing normally into operation of influence unit guide's barring gear, installs additional in the online barring gear upper end of unit
A set of stepless speed regulation barring gear.The present invention does not change existing equipment structure and characteristic, and servo motor drive is dexterously utilized
Dynamic, the structures such as antitorque reinforcement of gag lever post have reached ideal effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of the stepless speed regulation turbine jigger force-increasing device of the present invention；
Fig. 2 is the structural schematic diagram of the bearing support of the stepless speed regulation turbine jigger force-increasing device of the present invention；
Fig. 3 is the knot of the bearing support and pedestal interconnecting piece of the bearing support of the stepless speed regulation turbine jigger force-increasing device of the present invention
Structure schematic diagram；
Fig. 4 is the structural schematic diagram of the coupling band of the stepless speed regulation turbine jigger force-increasing device of the present invention；
Fig. 5 is that the stepless speed regulation turbine jigger force-increasing device of the present invention is in the structural schematic diagram of hand turning state.
Wherein：101. servo motor, 102. speed reducers, 103. holder A, 104. holder B, 105. split bolts, 106. first
Conductive machine, 107. pedestals, 108. holder card slots, 109. puller bolts, 110. guide's motor shaft head square tenons, 111. coupling bands,
112. upper journal, 113. right handed worms, 114. screw-casings, 115. left-hand screw bars, 116. down journals, 117. guide's motor bases are convex
Platform, 118. guide's motor bases, 119. height adjustment bolts, 120. flat keys, 121. fastening bolts, 122. turbine and worms slow down
Machine, 123. handwheels.
Specific implementation mode
The present invention is described further with reference to the accompanying drawings and examples.
A kind of stepless speed regulation turbine jigger force-increasing device, including jiggering driving device, coupling band 111, bearing support, gag lever post
With pedestal 107.Jiggering driving device is fixed on the upper surface of bearing support, and coupling band 111 is fixed under jiggering driving device
End, stretches into the inside of bearing support, is located at the top of guide's motor 106.Guide's motor 106 is located by guide's motor base 118
On pedestal 107, it is located at the inside of bearing support.Gag lever post upper end is fixedly connected with the outer rim on bearing support top, lower part and pedestal
The Corner Strapped of 107 upper surfaces connects.
As shown in Figure 1, driving device includes servo motor 101 and speed reducer 102.Speed reducer 102 is mounted on servo motor
101 lower end.Speed reducer 102 is fixed on the upper surface of bearing support, and the output shaft of speed reducer 102 passes through the upper surface of bearing support
After stretch into inside bearing support.Servo motor 101 provides the driving force of jiggering, and speed reducer 102 is for subtracting servo motor 101
Speed.
As depicted in figs. 1 and 2, bearing support includes holder A103 and holder B104.Half is provided with centered on the tops holder A103
The semicircular plate of circular through hole, middle part are " well " font fence, and lower part is semi-circular shape plate.Holder A103 lower semicircular annular slabs
On be provided with holder card slot 108.The structure of holder B104 is with holder A103 along axis where the semicircular plate center of circle of the tops holder A103
Line is symmetrical.Holder A103 is fixedly connected by split bolt 105 as an entirety with holder B104.Bearing support drives for fixed
Dynamic device and guide's motor 106.
As shown in figure 3, multiple height adjustment bolts 119 are evenly equipped in the lower part of holder A103 and holder B104, for adjusting
Shelf height size, levelness, verticality are saved, ensures that speed reducer output shaft and guide's motor shaft are concentric.
As shown in figure 4, the generally cylindrical of coupling band 111, upper end is band keyway unthreaded hole, and lower end is and guide's motor shaft
Head 110 matched square hole of square tenon.When needing jiggering, coupling band 111 moves down, and square hole is coupled with guide's motor shaft head square tenon 110, is subtracted
The rotating speed and torque that fast machine 102 exports are transmitted to guide's motor shaft；It is sliding on coupling band 111 when exiting jiggering, square hole and guide
Motor shaft head square tenon 110 disengages, and is locked it on 102 output shaft of speed reducer not by the fastening bolt 121 on coupling band 111
It causes to fall, speed reducer 102 is kept completely separate with guide's motor shaft, does not influence the normal operation of guide's motor 106.
As shown in figures 1 and 3,107 main part of pedestal is rectangle tabular, is arranged at the middle part of rectangular slab upper surface
There are cylindrical flange face, guide's motor base 118 to be located on cylindrical flange face.It is arranged in the upper surface in cylindrical flange face
There is guide's motor base boss 117.There are two guide's motor base boss 117 is total, along cylindrical flange face upper surface center of circle institute
It is arranged in axisymmetrical.Guide's motor base boss 117 is inserted into holder card slot 108, is fastened by puller bolt 109, to
Realize the fixation for bearing support.
As shown in Figure 1, gag lever post includes upper journal 112, right handed worm 113, screw-casing 114, left-hand screw bar 115 and lower branch
Ear 116.Upper journal 112 is fixed in the outer rim on bearing support top.The upper end 113 of right handed worm is mounted on upper journal 112, under
End is connect with the upper end of screw-casing 114.The lower end of screw-casing 114 is connect with the upper end of left-hand screw bar 115.Left-hand screw bar 115
Lower end is mounted on down journal 116.Down journal 116 is fixed on the angle of 107 upper surface of pedestal.Gag lever post shares four, upper end
It is distributed in the outer rim on bearing support top, lower end is fixed on four angles of 107 upper surface of pedestal.By on bearing support top and
107 upper end of pedestal connects four root long degree can be by the push-and-pull rod of left-right rotary threaded adjusting, locked lengths, and pull rod is to orientation
Speed reducer reaction force direction tilts when jiggering, makes pull rod by unidirectional pulling force, speed reducer 102 can be entirely limited by this measure
The torsion at the top of rear support bracket is carried, reaches and efficiently uses power, improves efficiency, ensures the purpose of equipment safety.
In the present embodiment, coupling band 111, bearing support, gag lever post and pedestal 107 are all made of steel alloy or carbon structural steels
Material is made.Servo motor 101 uses SIEMENS 1FL6094-1AC61-0AA1, power 5Kw, rotating speed 2000r/min, specified
Torque 23.9N.m, torque capacity 70N.m.Speed reducer 102 uses elaborate servo planetary reducer FB220-200-S2-P2, speed ratio
200:1, specified bearing torque 2400N.m, maximum bearing torque 4500N.m.
As shown in figure 5, when Overhaul site does not have, with electric condition, either servo motor 101 breaks down or rotor needs
When wanting interim discontinuous jiggering, the present invention can quickly install worm-gear speed reducer 122 and handwheel 123 substitutes servo motor
101 and speed reducer 102, to carry out hand turning.Worm-gear speed reducer 122 is fixed on the upper surface of bearing support, output
Axis stretches into behind the upper surface of bearing support inside bearing support.Handwheel 123 is mounted on worm-gear speed reducer 122.Worm gear snail
Bar speed reducer 122 uses worm-gear speed reducer CWS100-10-I, speed ratio 10:1,123 a diameter of 0.85m of handwheel, use are stainless
Steel material is made.One man adds whole body power about 300N, in addition entire weight about 500N, speed reducer exports corresponding torque
For 1275N and 2125N, meet the requirement that rotor disk turns.
Working principle of the present invention is as follows：
It surrounds, is assembled by split bolt 105 whole 1. holder A103 and holder B104 are lifted to 106 periphery of guide's motor
Body.
2. holder card slot 108 is caught in guide's motor base boss 117, clamped by puller bolt 109.
3. adjusting bearing top of support to the distance of guide's motor shaft head square tenon 110 by height adjustment bolt 119, and adjust
Support top of support levelness.
4. installing upper journal 112, right handed screw 113, screw-casing 114, left-handed screw 115, down journal 116, pre-tighten.
5. installing speed reducer 102, dial gauge is installed on speed reducer output shaft, disk moves speed reducer 102 and checks and guide's motor
Spindle nose is beated, and is adjusted by height adjustment bolt 119, screw-casing 114, ensures bounce≤0.15mm.
6. tightening all screw bolt and nut.
7. installing servo motor 101.
8. being 101 connecting cable of servo motor, electricity, forward or reverse crawl is taken to be engaged between Wire coil carriage device and rotor
Transmission gear.
101 rotating speed of servo motor is turned up 9. slowly gradually starting from scratch, rotor is turned by steadily orientation disk, and most fast 30 minutes i.e.
It completes to rotate for one week.101 rotating speed of servo motor is slowly turned down to zero, the steady stop disc of rotor turns.
10. during jiggering servo motor output torque remain at 6~7N.m (speed reducer output torque 1200~
1400N.m), it is obviously reduced than previous other jiggering mode torques, has benefited from the reinforcement of bearing support rigidity, speed reducer 102 and guide
The accurate centering of 106 axis of motor.
The implementation of the present invention is explained in detail above in conjunction with embodiment, but the present invention is not limited to above-mentioned realities
Example is applied, it within the knowledge of a person skilled in the art, can also be without departing from the purpose of the present invention
Various changes can be made.The prior art may be used in the content that description in the present invention is not described in detail.
Claims (4)
1. a kind of stepless speed regulation turbine jigger force-increasing device, it is characterised in that：It include jiggering driving device, coupling band (111),
Bearing support, gag lever post and pedestal (107)；Jiggering driving device is fixed on the upper surface of bearing support, and coupling band (111) is fixed on
The inside of bearing support is stretched into the lower end of jiggering driving device, is located at the top of guide's motor (106)；Gag lever post upper end and bearing
The outer rim on frame top is fixedly connected, and lower part is connect with the Corner Strapped of pedestal (107) upper surface；
The driving device includes servo motor (101) and speed reducer (102)；Speed reducer (102) is mounted on servo motor
(101) lower end；Speed reducer (102) is fixed on the upper surface of bearing support, and the output shaft of speed reducer (102) passes through bearing support
It is stretched into inside bearing support behind upper surface；
The bearing support includes holder A (103) and holder B (104)；It is provided with semi-circular through hole centered on holder A (103) top
Semicircular plate, middle part be " well " font fence, lower part be semi-circular shape plate；It is arranged on holder A (103) lower semicircular annular slab
There is holder card slot (108)；The structure of holder B (104) is with holder A (103) where holder A (103) top semicircular plate center of circle
Axisymmetrical；Holder A (103) is fixedly connected by split bolt (105) as an entirety with holder B (104)；
The lower part of the holder A (103) and holder B (104) is evenly equipped with multiple height adjustment bolts (119)；
Coupling band (111) the generally cylindrical, upper end are band keyway unthreaded hole, and lower end is and guide's motor shaft head square tenon
(110) matched square hole；When needing jiggering, coupling band (111) moves down, and square hole is coupled with guide's motor shaft head square tenon (110), is subtracted
The rotating speed and torque of fast machine (102) output are transmitted to guide's motor shaft；It is sliding on coupling band (111) when exiting jiggering, square hole with
Guide's motor shaft head square tenon (110) disengages, and speed reducer is locked it in by the fastening bolt (121) on coupling band (111)
(102) on output shaft；
Described pedestal (107) main part is rectangle tabular, and cylindrical method is provided in the middle part of rectangular slab upper surface
Blue face, guide's motor base (118) are located on cylindrical flange face；The upper surface in cylindrical flange face is provided with first conduction
Machine base boss (117)；There are two guide's motor base boss (117) is total, along axis where the upper surface center of circle of cylindrical flange face
Line is symmetrical arranged；Guide's motor base boss (117) is inserted into holder card slot (108), is fastened by puller bolt (109)；
The gag lever post includes upper journal (112), right handed worm (113), screw-casing (114), left-hand screw bar (115) and lower branch
Ear (116)；Upper journal (112) is fixed in the outer rim on bearing support top；The upper end (113) of right handed worm is mounted on upper journal
(112) on, lower end is connect with the upper end of screw-casing (114)；The lower end of screw-casing (114) connects with the upper end of left-hand screw bar (115)
It connects；The lower end of left-hand screw bar (115) is mounted on down journal (116)；Down journal (116) is fixed on pedestal (107) upper surface
On angle；Gag lever post shares four, and upper end is distributed in the outer rim on bearing support top, and lower end is fixed on pedestal (107) upper surface
On four angles.
2. stepless speed regulation turbine jigger force-increasing device according to claim 1, it is characterised in that：The coupling band
(111), bearing support, gag lever post and pedestal (107) are all made of steel alloy or carbon structure Steel material is made；Servo motor (101)
Using SIEMENS 1FL6094-1AC61-0AA1, power 5Kw, rotating speed 2000r/min, nominal torque 23.9N.m, torque capacity
70N.m；Speed reducer (102) uses elaborate servo planetary reducer FB220-200-S2-P2, speed ratio 200:1, specified bearing torque
2400N.m, maximum bearing torque 4500N.m.
3. stepless speed regulation turbine jigger force-increasing device according to claim 1, it is characterised in that：The driving device packet
Include worm-gear speed reducer (122) and handwheel (123)；Worm-gear speed reducer (122) is fixed on the upper surface of bearing support, defeated
Shaft stretches into behind the upper surface of bearing support inside bearing support；Handwheel (123) is mounted on worm-gear speed reducer (122).
4. stepless speed regulation turbine jigger force-increasing device according to claim 3, it is characterised in that：The worm and gear subtracts
Fast machine (122) uses worm-gear speed reducer CWS100-10-I, speed ratio 10:1, handwheel（123）A diameter of 0.85m, use are stainless
Steel material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611064053.5A CN106703907B (en) | 2016-11-28 | 2016-11-28 | Stepless speed regulation turbine jigger force-increasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611064053.5A CN106703907B (en) | 2016-11-28 | 2016-11-28 | Stepless speed regulation turbine jigger force-increasing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106703907A CN106703907A (en) | 2017-05-24 |
| CN106703907B true CN106703907B (en) | 2018-11-02 |
Family
ID=58934061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611064053.5A Active CN106703907B (en) | 2016-11-28 | 2016-11-28 | Stepless speed regulation turbine jigger force-increasing device |
Country Status (1)
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0756216B2 (en) * | 1992-04-20 | 1995-06-14 | 株式会社ジュピターコーポレーション | Rotor rotation device for jet engine inspection |
| JP4707272B2 (en) * | 2001-07-10 | 2011-06-22 | 株式会社東京エネシス | Support equipment for turbine inspection and maintenance |
| CN201065773Y (en) * | 2007-08-31 | 2008-05-28 | 秦山第三核电有限公司 | Turbine jigger force-increasing device |
| CN206338096U (en) * | 2016-11-28 | 2017-07-18 | 中核核电运行管理有限公司 | Stepless speed regulation turbine jigger force-increasing device |
-
2016
- 2016-11-28 CN CN201611064053.5A patent/CN106703907B/en active Active
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| Publication number | Publication date |
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| CN106703907A (en) | 2017-05-24 |
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