CN207265823U - Reactor-loop main pump motor electric barring equipment - Google Patents
Reactor-loop main pump motor electric barring equipment Download PDFInfo
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- CN207265823U CN207265823U CN201721113707.9U CN201721113707U CN207265823U CN 207265823 U CN207265823 U CN 207265823U CN 201721113707 U CN201721113707 U CN 201721113707U CN 207265823 U CN207265823 U CN 207265823U
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Abstract
The utility model belongs to nuclear power station main pump units' installation service technique field, more particularly to a kind of reactor-loop main pump motor electric barring equipment, purpose is to research and develop a set of electric barring instrument for being suitable for three bearing main pump units, it is required that the instrument can eliminate the security risk and shortcoming of original Manual jigger tool, new hand turning tool can will quickly realize the requirement high to throw and centering of three bearing main pump units, it is and safe and reliable, it is simple and practical, main pump repair quality can be improved, shortens the repair time.It is characterized in that：It includes jack bolt, oil scraper ring, bearing, thrust nut, attaching nut, stent, tool shaft, bearing holder (housing, cover), motor, reducer stent, baffle and retarder.The improvement of the technological design of the utility model kit, avoids original hand-operated tools because dismounting, the process adjusted repeatedly is repeated several times in instrument reason.
Description
Technical field
The utility model belongs to nuclear power station main pump units' installation service technique field, and in particular to a kind of reactor-loop
Main pump motor electric barring equipment.
Background technology
Fan family mountain, Fuqing primary Ioops main pump, the single-stage hereby produced for Austrian An Deli, centrifugation, vertical-type axial-flow pump are supporting
Motor is the 3-phase squirrel cage induction motor that electricity design, production are breathed out by China, and whole unit is three bearing arrangements.Three bearing masters
Pump assembly belongs to Andritz OY exclusively for Fan family mountain and the new product of Fuqing unit design, therefore meets that the unit uses and want
The electric barring equipment invention asked, belongs to pioneering, and to match somebody with somebody in the type main pump units' installation maintenance process international and domestic
Cover the large-scale specific purpose tool used.Every main pump and its bearing housing, motor maintenance process in, there are three maintenance steps to need to make
With barring gear rotary electric machine rotor：
1. throw centering above and below rotor itself, it is desirable to which difference is not more than 0.02mm；
2. motor is adjusted with bearing housing concentricity, within error 0.02mm；
3. motor shaft is adjusted with pump shaft concentricity, within error 0.02mm；
These three step jiggering times are grown, often, it is necessary to realize jiggering function using special barring gear.And current
Motor powered barring gear is designed generally be directed to itself Large Type Vertical Motor with thrust disc and thrust bearing shoe valve, is not suitable for three
Core main pump motor jiggering and the centering work of bearing arrangement.The manual disk that can be used currently for three-bearing machine jiggering centering
As schemed, its existing problems and disadvantages has car apparatus structure：
1. mode is backward, it is necessary to which 8 people promote；
2. core main pump motor rotor throw centering will reach no more than 0.02mm, during using this hand turning tool, due to instrument
Axis is only connected with motor axle thread by a lock nut, and end face cannot be bonded completely, cause tool shaft concentric with motor shaft
Degree influences rotor throw value up and down there are slight deviations.And if motor throw is unqualified, it is necessary to all remove jiggering
Instrument, exploratory past coupling nut is interior to add adjust pad, and the requirement of motor throw could be realized by generally requiring multiple repetition test,
Heavy workload, efficiency is low, influences nuclear power plant's overhaul critical path；
3. jiggering is very laborious, and when meter reading personnel halt, due to people, reactions vary more causes, and often has delay phenomenon；
4. motor headroom is narrow and small, 8 people put to good use not open above at the same time；
5. 5 meters or so of motor height, and have oil stain above, overstaffed risk is high, there is the possibility of high falling；
6. site environment is poor, personnel repeatedly toward climb up at the top of motor climb down it is dangerous.
The content of the invention
The purpose of this utility model is that a set of electric barring instrument for being suitable for three bearing main pump units of research and development, it is desirable to should
Instrument can eliminate the security risk and shortcoming of original Manual jigger tool, and new hand turning tool can will quickly realize three bearing main pump machines
The group requirement high to throw and centering, and securely and reliably, it is simple and practical, it is possible to increase main pump repair quality, shortens maintenance
Time.
The utility model is realized in this way：
A kind of reactor-loop main pump motor electric barring equipment, including jack bolt, oil scraper ring, bearing, thrust spiral shell
Mother, attaching nut, stent, tool shaft, bearing holder (housing, cover), motor, reducer stent, baffle and retarder；Motor is installed on retarder
Upper end, the input terminal of the output terminal of motor and retarder connects；Motor is used to provide jiggering power；The lower end of retarder is fixed
In the upper end of reducer stent, reducer shaft extends downwardly, positioned at the inside of reducer stent；Retarder is used to carry out motor
Slow down；Baffle is fixed on the lower face of reducer shaft, for playing cushioning effect；The lower end of reducer stent is fixed on the upper of stent
End, is used to support motor and retarder；The lower end of stent is fixed on the upper end of main pump motor shell, is used to support whole device；
The lower end of tool shaft is fixed on the upper end of main pump motor rotor, and upper end is stretched into inside reducer stent through stent, positioned at deceleration
Immediately below device axis, it is fixedly connected with reducer shaft, for transmitting the rotation of reducer shaft；Attaching nut turns installed in main pump motor
The outside of son and tool shaft connecting portion, for installing jack bolt；Jack bolt is installed on attaching nut, and lower end passes through connection
Nut is contacted with tool shaft, for main pump motor rotor to be lifted；In the bearing block at the rack-mount end of oil scraper ring, for preventing
The only grease outflow in bearing；In the bearing block at the rack-mount end of bearing, above oil scraper ring；Outer race and bearing
Seat inner wall is in close contact, and inner ring is installed on bearing holder (housing, cover)；Bearing provides support for the radial rotary of tool shaft；Bearing holder (housing, cover) is installed on
The top of tool shaft, between bearing and tool shaft, for providing support for the radial rotary of tool shaft；Thrust nut is installed
On the top of tool shaft, above bearing holder (housing, cover), lower end is in close contact with bearing holder (housing, cover), for lifting main pump motor rotor.
Jack bolt as described above shares four, is distributed on the upper surface of attaching nut；Turn in lifting main pump motor
Four puller bolt uniform stresseds in the process of son so that the end face of tool shaft and main pump motor armature spindle fits closely.
Thrust nut as described above shares two, sets gradually vertically, one of them is used for main pump motor rotor
Positioned, another is used to lock.
The cylindrical of the middle control of attaching nut's generally lower ending opening as described above, the center of upper surface opens up
There is through hole, for through tool shaft；Four mounting holes are distributed along the circumference with the outside of through hole, for installing jack bolt；
Internal thread is provided with the inner wall of attaching nut lower end, for connecting main pump motor rotor.
Tool shaft generally cylindrical as described above；The diameter of tool shaft upper end is less than the diameter of main part,
The side of upper end is provided with external screw thread；The diameter of tool shaft bottom is more than the diameter of main part, under bottom
End is provided with cylindrical boss, the groove match with main pump motor rotor upper end.
Bearing holder (housing, cover) generally circular ring type as described above, cross section is inverted "L" shape, and the upper end on top and thrust nut are close
Contact, inner side and the bearing of lower part are in close contact, and lower end and the oil scraper ring of lower part are in close contact.
The present apparatus further includes the first key, shaft coupling and the second key；First key is arranged on the side of tool shaft upper end, is used for
Connect shaft coupling；Second key is fixed on the side of reducer shaft, for connecting shaft coupling；Shaft coupling is arranged on reducer shaft and work
Between having axis, upper end is installed on the second key, and lower end is installed on the first key, for the rotation of reducer shaft to be passed to instrument
Axis.
The present apparatus further includes cylindrical pin with internal thread, shares four, is distributed on the upper surface of tool shaft bottom, for even
Bonding tool axis and main pump motor rotor.
The present apparatus further includes the first hexagon-headed bolt, gasket, the second hexagon-headed bolt, the 3rd hexagon-headed bolt, nut,
Four hexagon-headed bolts, the 5th hexagon-headed bolt and the 6th hexagon-headed bolt；First hexagon-headed bolt is installed on bearing holder (housing, cover) and bearing
Connecting portion, for fixing axle bearing sleeve and bearing；Gasket and the second hexagon-headed bolt are installed on stent and main pump motor shell
Connecting portion, for fixing bracket and main pump motor shell；3rd hexagon-headed bolt is installed on the company of retarder and reducer stent
Socket part, for fixing retarder and reducer stent；Nut and the 4th hexagon-headed bolt are installed on the connection of electronics and retarder
Portion, for fixing electronics and retarder；5th hexagon-headed bolt is installed on the connecting portion of reducer stent and stent, for fixing
Reducer stent and stent；6th hexagon-headed bolt is installed on the connecting portion of baffle and reducer shaft, for fixed baffle and subtracts
Fast device axis.
The present apparatus further includes lifting nut；The upper end that nut is installed on tool shaft is lifted by crane, positioned at the top of thrust nut；
The hollow cylindrical that nut main body part is lower ending opening is lifted by crane, inner wall is provided with internal thread, for fastening means axis；It is main
The upper end of body portion is provided with circular ring shape lifting lug, for mounting hanger.
The beneficial effects of the utility model are：
The utility model is electronic by being changed to manually, and jiggering number is promoted at the top of motor that to be changed into 1 people distant on ground from 8 people
Control, saves manpower, reduces industry security hidden danger；Electric barring is more steady than hand turning, and at the uniform velocity speed is adjustable, turns rest point spirit
It is quick；Tool shaft and the improvement of motor shaft connection mode, implementation tool axial end are preferably bonded with sealing of motor spindle end face, it is ensured that instrument
The concentricity of axis and motor shaft, influences the unfavorable factor of rotor itself throw when eliminating jiggering；With original manual disk
Car tool piece dismounts difference one by one, a whole set of electric barring instrument integral disassembly, assembly, the attaching nut of tool shaft and motor shaft with
It is time saving and energy saving and the thrust nut of bearing no longer needs to pound with a hammer；The finishing of critical component and datum level and load capacity calculation,
It ensure that instrument is safe and reliable；The improvement of the technological design of kit, avoids original hand-operated tools because instrument reason
Dismounting, the process adjusted repeatedly is repeated several times.
Brief description of the drawings
Fig. 1 is the front sectional view of the reactor-loop main pump motor electric barring equipment of the utility model；
Fig. 2 is the tool shaft and motor axis connection of the reactor-loop main pump motor electric barring equipment of the utility model
Enlarged diagram；
Fig. 3 is the structural representation of the lifting nut of the reactor-loop main pump motor electric barring equipment of the utility model
Figure.
Wherein：1. cylindrical pin with internal thread, 2. jack bolts, 3. oil scraper rings, 4. bearings, 5. first hexagon-headed bolts, 6. push away
Power nut, 7. gaskets, 8. second hexagon-headed bolts, 9. main pump motor rotors, 10. attaching nuts, 11. stents, 12. tool shafts,
13. bearing holder (housing, cover), 14. first keys, 15. lifting nuts, 16. shaft couplings, 17. second keys, 18. the 3rd hexagon-headed bolts, 19. spiral shells
Mother, 20. the 4th hexagon-headed bolts, 21. motors, 22. the 5th hexagon-headed bolts, 23. reducer stents, 24. baffles, 25. the 6th
Hexagon-headed bolt, 26. retarders.
Embodiment
The utility model is described further with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of reactor-loop main pump motor electric barring equipment, including jack bolt 2, oil scraper ring 3,
Bearing 4, thrust nut 6, attaching nut 10, stent 11, tool shaft 12, bearing holder (housing, cover) 13, motor 21, reducer stent 23, baffle
24 and retarder 26.Motor 21 is installed on the upper end of retarder 26, and the output terminal of motor 21 is connected with the input terminal of retarder 26；
Motor 21 is used to provide jiggering power.The lower end of retarder 26 is fixed on the upper end of reducer stent 23, retarder axially downwardly extending
Go out, positioned at the inside of reducer stent 23；Retarder 26 is used to slow down to motor 21.Baffle 24 is fixed on reducer shaft
Lower face, for playing cushioning effect.The lower end of reducer stent 23 is fixed on the upper end of stent 11, is used to support motor 21 and subtracts
Fast device 26.The lower end of stent 11 is fixed on the upper end of main pump motor shell, is used to support whole device.The lower end of tool shaft 12 is consolidated
Be scheduled on the upper end of main pump motor rotor 9, upper end is stretched into inside reducer stent 23 through stent 11, positioned at reducer shaft just under
Side, is fixedly connected with reducer shaft, for transmitting the rotation of reducer shaft.Attaching nut 10 be installed on main pump motor rotor 9 with
The outside of 12 connecting portion of tool shaft, for installing jack bolt 2.Jack bolt 2 is installed on attaching nut 10, and lower end, which passes through, to be connected
Connected nut 10 is contacted with tool shaft 12, for main pump motor rotor 9 to be lifted.Oil scraper ring 3 is installed on the bearing of 11 upper end of stent
In seat, for preventing the grease in bearing 4 from flowing out.Bearing 4 is installed in the bearing block of 11 upper end of stent, on oil scraper ring 3
Side；4 outer shroud of bearing is in close contact with bearing block inner wall, and inner ring is installed on bearing holder (housing, cover) 13；Bearing 4 revolves for the radial direction of tool shaft 12
Turn to provide support.Bearing holder (housing, cover) 13 is installed on the top of tool shaft 12, between bearing 4 and tool shaft 12, for for tool shaft
12 radial rotary provides support.Thrust nut 6 is installed on the top of tool shaft 12, above bearing holder (housing, cover) 13, lower end and axis
Bearing sleeve 13 is in close contact, for lifting main pump motor rotor 9.
As shown in Fig. 2, jack bolt 2 shares four, it is distributed on the upper surface of attaching nut 10.In lifting main pump motor
Four 2 uniform stresseds of puller bolt during rotor 9 so that tool shaft 12 and the end face of 9 axis of main pump motor rotor are closely pasted
Close, ensure that the reliability of jiggering operation.
Thrust nut 6 shares two, sets gradually vertically, one of them is used to position main pump motor rotor 9,
Another is used to lock.
The cylindrical of the middle control of the generally lower ending opening of attaching nut 10, the center of upper surface offer through hole,
For through tool shaft 12.Four mounting holes are distributed along the circumference with the outside of through hole, for installing jack bolt 2.Connecting
Internal thread is provided with the inner wall of nut lower end, for connecting main pump motor rotor 9.
The generally cylindrical of tool shaft 12.The diameter of 12 upper end of tool shaft is less than the diameter of main part, in upper end
The side in portion is provided with external screw thread.The diameter of 12 bottom of tool shaft is more than the diameter of main part, is set in the lower end of bottom
Cylindrical boss is equipped with, the groove match with 9 upper end of main pump motor rotor.
The generally circular ring type of bearing holder (housing, cover) 13, cross section are inverted "L" shape, and upper end and the thrust nut 6 on top are in close contact, under
The inner side in portion is in close contact with bearing 4, and lower end and the oil scraper ring 3 of lower part are in close contact.
Preferably, the utility model further includes the first key 14,16 and second key 17 of shaft coupling.First key 14 is arranged on instrument
The side of 12 upper end of axis, for connecting shaft coupling 16.Second key 17 is fixed on the side of reducer shaft, for connecting shaft coupling
16.Shaft coupling 16 is arranged between reducer shaft and tool shaft 12, and upper end is installed on the second key 17, and lower end is installed on the first key
On 14, for the rotation of reducer shaft to be passed to tool shaft 12.
Preferably, the utility model further includes cylindrical pin with internal thread 1, shares four, is distributed on 12 bottom of tool shaft
On upper surface, for fastening means axis 12 and main pump motor rotor 9.By setting cylindrical pin with internal thread 1 to ensure tool shaft
12 and main pump motor rotor 9 it is coaxial, improve the stability of jiggering operation.
Preferably, the utility model further includes the first hexagon-headed bolt 5, gasket 7, the second hexagon-headed bolt 8, the 3rd hexagonal
Hook bolt 18, nut 19, the 4th hexagon-headed bolt 20, the 5th hexagon-headed bolt 22 and the 6th hexagon-headed bolt 25.First hexagonal
Hook bolt 5 is installed on the connecting portion of bearing holder (housing, cover) 13 and bearing 4, for fixing axle bearing sleeve 13 and bearing 4.7 and second hexagonal of gasket
Hook bolt 8 is installed on the connecting portion of stent 11 and main pump motor shell, for fixing bracket 11 and main pump motor shell.Three or six
Hex bolt 18 is installed on the connecting portion of retarder 26 and reducer stent 23, for fixing retarder 26 and reducer stent
23.19 and the 4th hexagon-headed bolt 20 of nut is installed on the connecting portion of electronics 21 and retarder 26, for fixing electronics 21 and subtracting
Fast device 26.5th hexagon-headed bolt 22 is installed on the connecting portion of reducer stent 23 and stent 11, for fixing reducer stent
23 and stent 11.6th hexagon-headed bolt 25 is installed on the connecting portion of baffle 24 and reducer shaft, for fixed baffle 24 and subtracts
Fast device axis.
Preferably, as shown in figure 3, the utility model further includes lifting nut 15.Lifting nut 15 is installed on tool shaft 12
Upper end, positioned at the top of thrust nut 6.The hollow cylindrical that 15 main part of nut is lower ending opening is lifted by crane, it is interior
Wall is provided with internal thread, for fastening means axis 12；The upper end of main part is provided with circular ring shape lifting lug, for mounting hanger.
The operation principle of the utility model is as follows：
1. before major overhaul, electric barring instrument is assembled, and gear-box refuels, and unloaded function test is qualified, tool
Body step is as follows：
1.1：All parts surfaces clean up, and remove any grit, ooze oily thing, removing iron rust, paint or other outer
Carry out material；
1.2：By in the bearing block of 3 mounting bracket 11 of oil scraper ring；
1.3：Outer race is attached in the bearing block on stent 11；
1.4：Bearing inner ring is heated to 85 DEG C or so, in hot charging to bearing holder (housing, cover) 13；
1.5：After bearing cooling, bearing inner and outer rings are filled into lubricating grease；
1.6：Attaching nut 10 is attached on tool shaft 12；
1.7：Tool shaft 12 is fitted into stent 11 from below；
1.8：The bearing holder (housing, cover) 13 installed is attached on tool shaft 12, after the completion of measure shaft end to the distance of bearing holder (housing, cover), make it
In 172mm or so；
1.8：One thrust nut 6 is screwed on tool shaft 12 manually, is leaned against on bearing holder (housing, cover) 13；
1.9：Motor 21 is fitted into retarder 26, and tightens the 4th hexagon-headed bolt 20；
1.10：Second key 17 is attached on reducer shaft；
1.11：First key 14 is attached on tool shaft；
1.12：By in electric 16 hot charging of end shaft coupling to reducer shaft, baffle 24 is passed through into the 6th hexagon-headed bolt 25 afterwards
Fixed on reducer shaft；
1.13：Instrument shaft end shaft coupling 16 is attached on tool shaft 12；
1.14：Reducer stent 23 is installed on stent 11, and the 5th hexagon-headed bolt 22 is tightened；
1.15：Retarder 26 and motor 21 are sling and are encased on reducer stent 23, and by the 3rd hexagon-headed bolt 18
Tighten；
1.16：Connect shaft coupling 16；
2. during overhaul, the electric barring instrument integral hoisting assembled to 21 upper end of motor is connected with motor shaft, it is real
Existing jiggering function, can meet that rotor itself throw adjusts, and motor 21 and bearing chamber centering, motor 21 is with pump shaft to medium
Functional requirement, specific implementation step are as follows：
2.1：The stent 11 assembled is lifted into main pump motor upper end, and 4 the second hexagon-headed bolts 8 are mutually 90 degree
It is screwed on main pump motor, but does not tighten；
2.2：The position of tool shaft 12 is adjusted, cylindrical pin with internal thread 1 is inserted into axis, and by the seam allowance on tool shaft 12
It is inserted into the groove of main pump motor axis, gently taps tool shaft 12, ensures that two shaft ends fit closely；
2.3：Attaching nut 10 is slowly screwed on main pump motor axis, until main pump motor shaft end is in attaching nut 10
Fluting at expose,, can be by thrust if main pump motor shaft end is thrown away and cannot be exposed after attaching nut 10 tightens during installation
Nut 6 reversely rotates a distance, tool shaft 12 is fallen, and continues to screw in attaching nut 10 afterwards, until main pump motor shaft end
Expose；
2.4：Along the circumferential direction divide at 4 and measure on the inside of stent lower flange the distance between main pump motor rotor, and adjust
11 position of stent so that the size measured at 4 is close, and tightens 4 the second hexagon-headed bolts 8；
2.5：The second all hexagon-headed bolts 8 is installed in place and tightened；
2.6：Thrust nut 6 slowly is tightened, during tightening while with 12 end of clearance gauge survey tool axis and main pump
The gap of motor shaft end, at this after being 0.2mm, another thrust nut 6 is also tightened on tool shaft 12；
2.7：4 jack bolts 2 are screwed into attaching nut 10, are slowly lifted main pump motor rotor 9, in lifting
During to ensure 4 bolt uniform stresseds, untill the end face of tool shaft 12 and 9 axis of main pump motor rotor fits closely；
2.8：When two shaft ends fit together, indicate that the elevated 0.2mm of rotor, can be turned
It is dynamic；
2.9：Motor and retarder motor cable are connected, it is the rotation that main pump motor rotor can be achieved to start controller；
3. after the completion of jiggering work is done, tool shaft 12 and motor shaft are disengaged, stent 11 is disengaged with the 5th hexagon-headed bolt 22,
Electric barring instrument can integrally be hung out.
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 reality
Example is applied, within the knowledge of a person skilled in the art, can also be on the premise of present inventive concept not be departed from
Various changes can be made.The content not being described in detail in description of the invention can use the prior art.
Claims (10)
- A kind of 1. reactor-loop main pump motor electric barring equipment, it is characterised in that：It includes jack bolt (2), gear oil Ring (3), bearing (4), thrust nut (6), attaching nut (10), stent (11), tool shaft (12), bearing holder (housing, cover) (13), motor (21), reducer stent (23), baffle (24) and retarder (26)；Motor (21) is installed on the upper end of retarder (26), motor (21) output terminal is connected with the input terminal of retarder (26)；The lower end of retarder (26) is fixed on the upper of reducer stent (23) End, reducer shaft extends downwardly, positioned at the inside of reducer stent (23)；Baffle (24) is fixed on the lower face of reducer shaft； The lower end of reducer stent (23) is fixed on the upper end of stent (11)；The lower end of stent (11) is fixed on the upper of main pump motor shell End；The lower end of tool shaft (12) is fixed on the upper end of main pump motor rotor (9), and reducer stent is stretched into upper end through stent (11) (23) it is internal, immediately below reducer shaft, it is fixedly connected with reducer shaft；Attaching nut (10) is installed on main pump motor rotor (9) with the outside of tool shaft (12) connecting portion；Jack bolt (2) is installed on attaching nut (10), and lower end passes through attaching nut (10) contacted with tool shaft (12)；Oil scraper ring (3) is installed in the bearing block of stent (11) upper end；Bearing (4) is installed on stent (11) in the bearing block of upper end, above oil scraper ring (3)；Bearing (4) outer shroud is in close contact with bearing block inner wall, inner ring installation On bearing holder (housing, cover) (13)；Bearing holder (housing, cover) (13) is installed on the top of tool shaft (12), between bearing (4) and tool shaft (12)； Thrust nut (6) is installed on the top of tool shaft (12), and above bearing holder (housing, cover) (13), lower end closely connects with bearing holder (housing, cover) (13) Touch.
- 2. reactor-loop main pump motor electric barring equipment according to claim 1, it is characterised in that：The top Play bolt (2) and share four, be distributed on the upper surface of attaching nut (10).
- 3. reactor-loop main pump motor electric barring equipment according to claim 1, it is characterised in that：Described pushes away Power nut (6) shares two, sets gradually vertically.
- 4. reactor-loop main pump motor electric barring equipment according to claim 1, it is characterised in that：The company The cylindrical of the middle control of connected nut (10) generally lower ending opening, the center of upper surface offers through hole；In through hole Outside is distributed along the circumference with four mounting holes；Internal thread is provided with the inner wall of attaching nut lower end.
- 5. reactor-loop main pump motor electric barring equipment according to claim 1, it is characterised in that：The work Has axis (12) generally cylindrical；The diameter of tool shaft (12) upper end is less than the diameter of main part, in the side of upper end Face is provided with external screw thread；The diameter of tool shaft (12) bottom is more than the diameter of main part, is provided with the lower end of bottom Cylindrical boss, the groove match with main pump motor rotor (9) upper end.
- 6. reactor-loop main pump motor electric barring equipment according to claim 1, it is characterised in that：The axis Bearing sleeve (13) generally circular ring type, cross section are inverted "L" shape, and upper end and the thrust nut (6) on top are in close contact, lower part it is interior Side is in close contact with bearing (4), and lower end and the oil scraper ring (3) of lower part are in close contact.
- 7. reactor-loop main pump motor electric barring equipment according to claim 5, it is characterised in that：It is further included First key (14), shaft coupling (16) and the second key (17)；First key (14) is arranged on the side of tool shaft (12) upper end；Second Key (17) is fixed on the side of reducer shaft；Shaft coupling (16) is arranged between reducer shaft and tool shaft (12), upper end installation On the second key (17), lower end is installed on the first key (14).
- 8. reactor-loop main pump motor electric barring equipment according to claim 5, it is characterised in that：It is further included Cylindrical pin with internal thread (1), shares four, is distributed on the upper surface of tool shaft (12) bottom.
- 9. reactor-loop main pump motor electric barring equipment according to claim 1, it is characterised in that：It is further included First hexagon-headed bolt (5), gasket (7), the second hexagon-headed bolt (8), the 3rd hexagon-headed bolt (18), nut (19), the 4th Hexagon-headed bolt (20), the 5th hexagon-headed bolt (22) and the 6th hexagon-headed bolt (25)；First hexagon-headed bolt (5) is installed on The connecting portion of bearing holder (housing, cover) (13) and bearing (4)；Gasket (7) and the second hexagon-headed bolt (8) are installed on stent (11) and main pump electricity The connecting portion of machine shell；3rd hexagon-headed bolt (18) is installed on the connecting portion of retarder (26) and reducer stent (23)；Spiral shell Female (19) and the 4th hexagon-headed bolt (20) are installed on the connecting portion of motor (21) and retarder (26)；5th hexagon-headed bolt (22) it is installed on the connecting portion of reducer stent (23) and stent (11)；6th hexagon-headed bolt (25) be installed on baffle (24) and The connecting portion of reducer shaft.
- 10. reactor-loop main pump motor electric barring equipment according to claim 5, it is characterised in that：It is also wrapped Include lifting nut (15)；The upper end that nut (15) is installed on tool shaft (12) is lifted by crane, positioned at the top of thrust nut (6)；Rise The hollow cylindrical that nut (15) main part is lower ending opening is hung, inner wall is provided with internal thread；The upper end of main part It is provided with circular ring shape lifting lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721113707.9U CN207265823U (en) | 2017-09-01 | 2017-09-01 | Reactor-loop main pump motor electric barring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721113707.9U CN207265823U (en) | 2017-09-01 | 2017-09-01 | Reactor-loop main pump motor electric barring equipment |
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| CN207265823U true CN207265823U (en) | 2018-04-20 |
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| CN201721113707.9U Active CN207265823U (en) | 2017-09-01 | 2017-09-01 | Reactor-loop main pump motor electric barring equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494940A (en) * | 2018-12-29 | 2019-03-19 | 福建福清核电有限公司 | A kind of tooling and method for nuclear power station main coolant pump motor jiggering |
| CN115478941A (en) * | 2022-10-20 | 2022-12-16 | 中车资阳机车有限公司 | Light and labor-saving diesel engine electric barring gear |
-
2017
- 2017-09-01 CN CN201721113707.9U patent/CN207265823U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494940A (en) * | 2018-12-29 | 2019-03-19 | 福建福清核电有限公司 | A kind of tooling and method for nuclear power station main coolant pump motor jiggering |
| CN109494940B (en) * | 2018-12-29 | 2023-11-14 | 福建福清核电有限公司 | Tool and method for turning of main coolant pump motor of nuclear power station |
| CN115478941A (en) * | 2022-10-20 | 2022-12-16 | 中车资阳机车有限公司 | Light and labor-saving diesel engine electric barring gear |
| CN115478941B (en) * | 2022-10-20 | 2024-04-09 | 中车资阳机车有限公司 | Electric jigger device of diesel engine |
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