CN106059189B - The heavy loading locomotive traction electric machine of single bearing structure - Google Patents
The heavy loading locomotive traction electric machine of single bearing structure Download PDFInfo
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- CN106059189B CN106059189B CN201610598670.7A CN201610598670A CN106059189B CN 106059189 B CN106059189 B CN 106059189B CN 201610598670 A CN201610598670 A CN 201610598670A CN 106059189 B CN106059189 B CN 106059189B
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- bearing
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- shaft coupling
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- traction electric
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/163—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at only one end of the rotor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The present invention relates to the heavy loading locomotive traction electric machines of traction electric machine, specially single bearing structure.Solve the problem of that the connection structure between the heavy loading locomotive traction electric machine armature spindle driving end of existing single bearing structure and gear-box power input shaft is unreasonable and can not replace bearing online.The driving end of the traction electric machine armature spindle is connected with shaft coupling, and the shaft coupling is in the form of a column, and is provided with tapped through hole along the axis of column shaft coupling, one end end face of shaft coupling is equipped with engaging tooth；The driving end end face of armature spindle is provided with mounting hole, and the axis of mounting hole is overlapped with the axis of armature spindle；Non- engaging tooth one end interference fit of shaft coupling is inserted into mounting hole.The present invention can meet 30 tons of using for axis heavy-duty machine vehicle and require, while can realize and not fall the function that vehicle replaces bearing online；Maintenance time and the maintenance cost of failing locomotive traction electric machine are greatly reduced, improves the percent of punctuality and utilization rate of locomotive operation.
Description
Technical field
The present invention relates to the heavy loading locomotive traction electric machines of traction electric machine, specially single bearing structure.
Background technology
The tractive force of locomotive is limited by wheel hub and interorbital effect, in order to improve locomotive single axis traction power limit value, increases machine
Axle is most effective and direct mode again.
The states such as the U.S., Australia, Brazil, Sweden begin to carry out railway locomotive heavy haul transport very early.It was opened from 1997
Begin, Sweden's mine railway axis weight is increased to 30t by 25t；All class 1 railroad axis in the nineteen ninety U.S. are increased to 33t again；Canada
Class 1 railroad is also increased to 33t since nineteen ninety-five；Australian BHP heavy haul railways axis is increased to 35t again, by external long-term
Big axis heavy-duty machine vehicle testing results, big axis heavy-duty machine vehicle can provide reliable guarantee for the raising of railway transportation, while reduce operation dimension
Accomplish sheet, and China railways locomotive maximum allowable axle load is 25t, axis weighs the further development of relatively low limitation China Railway.
Locomotive Axle Load is improved, needs the torque that motor transmits bigger, and according to design of electrical motor principle, the torque of motor
Directly determine the volume of motor, therefore for the requirement for meeting this large torque, the volume of traction electric machine needs to increase.But by
The limitation space of wheel pair and wheel footpath, the space that locomotive gives traction electric machine are limited.To solve own vol and locomotive installation space
The single bearing structure of no driving end end cap is usually taken in contradiction between limited, locomotive traction motor, i.e., when motor is installed, electricity
Machine coordinates with gear-box, and motor drive end end cap is served as in gear-box face, and motor is integrated with gear-box.
There are following defects for the locomotive traction motor of existing single bearing structure:
1) connection structure between the armature spindle driving end of traction electric machine and gear-box power input shaft is unreasonable, influences machine
Car weight axis is by the raising of driving torque.
2）When replacing bearing, the step of falling vehicle, entrucking, is sufficiently complex, during bearing is replaced, to locomotive and motor
Cause the risk artificially damaged higher, the process for replacing bearing is time-consuming, takes a lot of work, arduously, of high cost.
Attached drawing 1 show the structure diagram of existing locomotive traction motor non-transmision end；It includes engine base 1, non-transmision end
End cap 2, rotor 3, internal sealed ring 4, bearing 5, end ring 6, inner cover 7, speed measuring fluted disc 8, outer cover 9, bearing angle circle 10.Due to locomotive
Motor must be fallen vehicle and can realized by the limitation in space, bearing removal process, which can not realize online replacement bearing
Purpose.During dismantling bearing, end cap and rotor one need to be detached from stator, it is rear to remove outer cover 9, speed measuring fluted disc 8, inner cover
7th, end ring 6, bearing angle circle 10, then end cap and bearing are integrally detached with rotor, then with forcing press tooling by bearing pressure
Go out.From more than bearing removal process, entire job step is cumbersome, and dedicated tooling is needed to be operated by professional
Into also needing to return factory simultaneously and carry out replacement bearing so motor will not only fall vehicle, whole process is time-consuming and laborious, with high costs.
Invention content
The heavy loading locomotive traction electric machine armature spindle driving end and gear-box power of the existing single bearing structure of present invention solution are defeated
It is unreasonable and the problem of bearing can not be replaced online to enter the connection structure between axis, a kind of heavy duty of single bearing structure is provided
Locomotive traction motor.
The present invention adopts the following technical scheme that realization：The heavy loading locomotive traction electric machine of single bearing structure, including engine base,
Non-transmision end end cap, rotor, bearing, end ring, bearing angle circle；The driving end of armature spindle is connected with shaft coupling, the shaft coupling
Section is in the form of a column, and is provided with tapped through hole along the axis of column shaft coupling, one end end face of shaft coupling is equipped with engaging tooth；Armature spindle
Driving end end face is provided with mounting hole, and the axis of mounting hole is overlapped with the axis of armature spindle；Non- engaging tooth one end interference of shaft coupling
Mounting hole is inserted into cooperation.In use, the driving end of the locomotive traction motor directly coordinates with gear-box, the driving tooth in gear-box
One end end face of wheel also is provided with engaging tooth, and the engaging tooth on shaft coupling is made to be meshed with the engaging tooth of gear-box inner pinion gear,
With a fastening bolt also cross the axis hole of driving gear and the tapped through hole of shaft coupling, and shaft coupling and driving gear are connected
It is integrated, so as to complete the drive connection between traction electric machine and gear-box.
Further include capping, bearing block, spindle nose cover board；Bearing hole on bearing block is from outside to inside（Here inside and outside refers to
Motor it is inside and outside）Tapered step hole；Withstand the cascaded surface of the bearing hole of bearing block, and and bearing block in the outer ring of bearing
Bearing hole interference fit, the inner ring of bearing withstands the shaft shoulder of armature spindle and is interference fitted with armature spindle；On non-transmision end end cap
Bearing saddle bore be tapered step hole from outside to inside, the inner side end of bearing block withstands the bearing block of non-transmision end end cap
The cascaded surface in hole simultaneously coordinates with bearing saddle bore transition, the bearing hole wall of the inner end of bearing block have radially outward from and and rotor
The seal stopper ring of the inner ring clearance fit of axis or bearing；Bearing angle is enclosed to be interference fitted with armature spindle；The inner side end of end ring
Equipped with bulge loop, the outer ring surface of bulge loop is contacted with the end face of the bearing hole transition cooperation of bearing block and bulge loop with the outer ring of bearing, axis
The inner side end for holding baffle ring contacts blending bolt with the end face outside of bearing block and fixes end ring and bearing block, end ring
Inner ring wall be equipped with tapered step from outside to inside；The inner side end of spindle nose cover board is in contact with bearing angle circle and it（Axis
Epicranial plate）Outer ring surface, inner side end are respectively with the inner ring wall of end ring, cascaded surface clearance fit, and blending bolt is by Spindle nose cover
Plate is fixed on rotor axial end；The inner side end of capping is equipped with positioning convex ring, outer ring surface and the non-transmision end end cap of positioning convex ring
Bearing saddle bore transition cooperation and the end face of positioning convex ring contacted with the end face outside of bearing block, capping and non-transmision end end cap it
Between bolt fix；Wherein capping, be all furnished with top wire hole on spindle nose cover board, end ring, bearing block.
The present invention is by redesigning the connecting component between traction electric machine and gear-box --- and the structure of shaft coupling provides
It is a kind of can transmitting large torque traction electric machine, so that the traction electric machine maximum output torque is born in short-term up to 13000Nm
The short-circuit impact load of 50000Nm can meet 30 tons of using for axis heavy-duty machine vehicle and require, and realize the 30 tons big axis weight locomotive traction in China
The breakthrough for the first time of motor technology.It can realize simultaneously and not fall the function that vehicle replaces bearing online；With existing locomotive traction motor
Structure compares, and which introduce the bearing block with dismounting top wire hole, bearing is assemblied in bearing block, and the bearing block with bearing
It will not be interfered in disassembly process by end cap axial direction；Meanwhile the unique texture of bearing block, end ring and spindle nose cover board is set
Meter, ensure that the opposing seal of the bearing chamber of bearing both sides, avoids the leakage of bearing oil；Novel in structural design is unique.Greatly
Big maintenance time and the maintenance cost for reducing failing locomotive traction electric machine improves the percent of punctuality and utilization rate of locomotive operation.
Description of the drawings
Fig. 1 is the partial structural diagram of the traction electric machine non-transmision end of existing single bearing structure；
Fig. 2 is the overall structure diagram of the heavy loading locomotive traction electric machine of single bearing structure of the present invention（Non-transmision end
For existing structure）；
Fig. 3 is the usage state diagram of Fig. 2；
Fig. 4 is the partial structurtes enlarged drawing of the improved non-transmision end of the present invention；
Fig. 5 is the structure diagram of shaft coupling.
In figure：1- engine bases, 2- non-transmision end end caps, 3- rotors, 4- internal sealed rings, 5- bearings, 6- end rings,
6-1- bulge loops, 7- inner covers, 8- speed measuring fluted discs, 9- outer covers, 10- bearings angle circle, 11- cappings, 11-1- positioning convex rings,
14- spindle nose cover boards, 16- bearing blocks, 16-1- seal stopper rings, 21- shaft couplings, 21-1- engaging tooths, 21-2- balances
Disk, 22- driving gears, 23- fastening bolts, 26- fixing tools, 27- rubber pads, 28- fixing tool bolts.
Specific embodiment
The heavy loading locomotive traction electric machine of single bearing structure, including engine base 1, non-transmision end end cap 2, rotor 3, bearing 5, bearing
Baffle ring 6, bearing angle circle 10；The driving end of armature spindle is connected with shaft coupling 21, and the shaft coupling is in the form of a column, along column shaft coupling
Axis is provided with tapped through hole, and one end end face of shaft coupling is equipped with engaging tooth 21-1；The driving end end face of armature spindle is provided with fixation
Hole, the axis of mounting hole are overlapped with the axis of armature spindle；Non- engaging tooth one end interference fit of shaft coupling is inserted into mounting hole.Specifically
During implementation, which further includes the fixing tool 26 being fixedly connected with engine base 1, rubber pad 27, fixing tool bolt 28.Such as
Shown in Fig. 2, after the completion of general assembly, rubber pad 27 is padded between shaft coupling and fixing tool 26, avoids shaft coupling 21 impaired, Ran Houyong
Fixing tool bolt 28 is by assembled motor and fixing tool fixation, i.e., with fixing tool bolt 28 by fixing tool 26
It is fixed with shaft coupling 21, fixing tool is made to serve as the driving end bearing of motor, prevents motor in transportational process between stator and rotor
Radial and axial movement occurs.In use, as shown in figure 3, the driving end of the locomotive traction motor directly with gear-box coordinate, tooth
One end end face of driving gear 22 in roller box also is provided with engaging tooth, makes engaging tooth and gear-box inner pinion gear on shaft coupling
Engaging tooth be meshed, with a fastening bolt 23 also cross the axis hole of driving gear and the tapped through hole of shaft coupling, and incite somebody to action
Shaft coupling and driving gear are connected as a single entity, so as to complete the drive connection between traction electric machine and gear-box.When it is implemented, connection
Have on the cylinder of engaging tooth one end of joint 21 radially outward from balancing frame 21-2, to improve the spin balancing of rotor.
The heavy loading locomotive traction electric machine of single bearing structure further includes capping 11, bearing block 16, spindle nose cover board 14；Bearing block 16
On bearing hole be tapered step hole from outside to inside；The cascaded surface of the bearing hole of bearing block 16 is withstood in the outer ring of bearing 5,
And be interference fitted with the bearing hole of bearing block 16, the inner ring of bearing 5 withstands the shaft shoulder of armature spindle and is interference fitted with armature spindle；It is non-
Bearing saddle bore on driving end end cap 2 is step hole tapered from outside to inside, and the inner side end of bearing block 16 withstands non-biography
The cascaded surface of the bearing saddle bore of moved end end cap simultaneously coordinates with bearing saddle bore transition, and the bearing hole wall of the inner end of bearing block 16 has diameter
To the seal stopper ring 16-1 of inner ring clearance fit extend and with armature spindle or bearing 5；Bearing angle circle 10 and armature spindle mistake
It is full of cooperation；The inner side end of end ring 6 is equipped with bulge loop 6-1, and the outer ring surface of bulge loop coordinates with the bearing hole transition of bearing block 16
And the end face of bulge loop is contacted with the outer ring of bearing 5, the inner side end of end ring 6 contacts with the end face outside of bearing block and uses spiral shell
Bolt fixes end ring and bearing block, and the inner ring wall of end ring 6 is equipped with step tapered from outside to inside；Spindle nose cover board
14 inner side end and bearing angle circle 10 be in contact and its outer ring surface, inner side end respectively with inner ring wall, the ladder of end ring 6
Spindle nose cover board 14 is fixed on rotor axial end by face clearance fit, blending bolt；The inner side end of capping 11 is equipped with positioning convex ring
The outer ring surface of 11-1, positioning convex ring 11-1 and the bearing saddle bore transition cooperation of non-transmision end end cap 2 and the end face of positioning convex ring
It is contacted with the end face outside of bearing block 16, bolt is fixed between capping 11 and non-transmision end end cap 2；Wherein capping 11, Spindle nose cover
Plate 14, end ring 6 are all furnished with top wire hole on bearing block 16.Bearing block 16 is there are four uniformly distributed M10 top wire holes, for dismantling
Bearing block is used.
First, bearing step is dismantled
1. dismounting capping 11.The installation bolt of capping 11 is removed first, capping is gap-matched installation with end cap 2, then
By the top wire hole in capping by closure removal.
2. dismantle spindle nose cover board 14.Spindle nose cover board installation bolt is removed, then is removed spindle nose cover board by top wire hole.
3. dismantle end ring 6.The installation bolt of end ring is removed, end ring is coordinated with bearing block 16 using transition
Installation, then removed end ring by top wire hole.
4. dismantle bearing angle circle 10.Bearing angle is enclosed is installed with armature spindle using interference fit, needs to enclose at bearing angle before dismounting
Heated using heating unit, after removed.
5. dismantle bearing block bearing external member.Bearing block, using transition cooperation installation, passes through jackscrew on bearing block 16 with end cap
Hole is dismantled by the related bearing of bearing block simultaneously.
6. remove bearing inner race.Bearing inner race is installed with armature spindle using interference fit, heating bearing inner race before dismantling, after
It is removed.
7. separation shaft bearing and bearing.Bearing block is with bearing outer ring using interference fit.Use disassembling fixture and thrust pump
Bearing outer ring is detached with bearing block.
2nd, bearing is reinstalled
1. bearing press mounting.Bearing outer ring is pressed into bearing block using press-fitting tool and thrust pump.
2. hot jacket bearing inner race.
3. fire end cover with bearing block cooperation position, the bearing block for being equipped with bearing is being installed on end cap.
4. hot jacket bearing angle is enclosed and is installed.
5. end ring is installed.
6. installation axle epicranial plate.
7. installation capping.
Claims (4)
1. a kind of heavy loading locomotive traction electric machine of single bearing structure, including engine base（1）, non-transmision end end cap（2）, rotor（3）, axis
It holds（5）, end ring（6）, bearing angle circle（10）；It is characterized in that the driving end of armature spindle is connected with shaft coupling（21）, it is described
Shaft coupling is in the form of a column, and is provided with tapped through hole along the axis of column shaft coupling, one end end face of shaft coupling is equipped with engaging tooth（21-
1）；The driving end end face of armature spindle is provided with mounting hole, and the axis of mounting hole is overlapped with the axis of armature spindle；The non-engagement of shaft coupling
Tooth one end interference fit is inserted into mounting hole；Further include capping（11）, bearing block（16）, spindle nose cover board（14）；Bearing block（16）On
Bearing hole be tapered step hole from outside to inside；Bearing（5）Outer ring withstand bearing block（16）Bearing hole ladder
Face, and and bearing block（16）Bearing hole interference fit, bearing（5）Inner ring withstand armature spindle the shaft shoulder and with armature spindle interference
Cooperation；Non-transmision end end cap（2）On bearing saddle bore be tapered step hole from outside to inside, bearing block（16）Inner end
It withstands the cascaded surface of the bearing saddle bore of non-transmision end end cap and coordinates with bearing saddle bore transition, bearing block in face（16）Inner end
Bearing hole wall have radially outward from and with armature spindle or bearing（5）Inner ring clearance fit seal stopper ring（16-1）；Bearing
Angle is enclosed（10）It is interference fitted with armature spindle；End ring（6）Inner side end be equipped with bulge loop（6-1）, the outer ring surface and axis of bulge loop
Bearing（16）Bearing hole transition cooperation and bulge loop end face and bearing（5）Outer ring contact, end ring（6）Inner side end
Blending bolt is contacted with the end face outside of bearing block to fix end ring and bearing block, end ring（6）Inner ring wall be equipped with
Tapered step from outside to inside；Spindle nose cover board（14）Inner side end and bearing angle enclose（10）It is in contact and spindle nose cover board
（14）Outer ring surface, inner side end respectively with end ring（6）Inner ring wall, cascaded surface clearance fit, blending bolt is by spindle nose
Cover board（14）It is fixed on rotor axial end；Capping（11）Inner side end be equipped with positioning convex ring（11-1）, positioning convex ring（11-
1）Outer ring surface and non-transmision end end cap（2）Bearing saddle bore transition cooperation and positioning convex ring end face and bearing block（16）It is outer
Side end face contacts, capping（11）With non-transmision end end cap（2）Between bolt fix；Wherein cover（11）, spindle nose cover board（14）, axis
Hold baffle ring（6）, bearing block（16）On be all furnished with top wire hole.
2. the heavy loading locomotive traction electric machine of single bearing structure according to claim 1, it is characterised in that shaft coupling（21）'s
Have on the cylinder of engaging tooth one end radially outward from balancing frame（21-2）.
3. the heavy loading locomotive traction electric machine of single bearing structure according to claim 1 or 2, it is characterised in that further include and machine
Seat（1）The fixing tool being fixedly connected（26）, rubber pad（27）, fixing tool bolt（28）, in shaft coupling and fixing tool
（26）Between pad rubber pad（27）, with fixing tool bolt（28）By fixing tool（26）With shaft coupling（21）It fixes and compresses rubber
Rubber cushion（27）.
4. the heavy loading locomotive traction electric machine of single bearing structure according to claim 1, which is characterized in that bearing block（16）Have
Four uniformly distributed M10 top wire holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610598670.7A CN106059189B (en) | 2016-07-27 | 2016-07-27 | The heavy loading locomotive traction electric machine of single bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610598670.7A CN106059189B (en) | 2016-07-27 | 2016-07-27 | The heavy loading locomotive traction electric machine of single bearing structure |
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| Publication Number | Publication Date |
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| CN106059189A CN106059189A (en) | 2016-10-26 |
| CN106059189B true CN106059189B (en) | 2018-06-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834768A (en) * | 2017-11-17 | 2018-03-23 | 中车株洲电机有限公司 | Motor, motor gear box assembly, inter-city train |
| AT520949B1 (en) * | 2018-03-06 | 2019-11-15 | Traktionssysteme Austria Gmbh | Fixing element for fixing the rotor shaft of an electric machine to the stator, and electric machine with such a fixing element |
| CN113726074B (en) * | 2020-05-26 | 2023-03-07 | 中车永济电机有限公司 | Electric motor |
| CN112722544A (en) * | 2020-12-25 | 2021-04-30 | 中车永济电机有限公司 | A conveyer for joining in marriage locomotive traction motor of dress gear box |
| CN114162148A (en) * | 2021-12-03 | 2022-03-11 | 中车唐山机车车辆有限公司 | Compact drive device, bogie and rail vehicle |
| CN114194241A (en) * | 2021-12-03 | 2022-03-18 | 中车唐山机车车辆有限公司 | Bogie and rail vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201396382Y (en) * | 2009-05-13 | 2010-02-03 | 南车株洲电力机车有限公司 | Elastic coupling |
| CN102966675A (en) * | 2012-11-27 | 2013-03-13 | 大连天元电机股份有限公司 | Special involute spline fitted coupling structure for automobile traction |
| CN202931110U (en) * | 2012-10-23 | 2013-05-08 | 南昌康富电机技术有限公司 | Single bearing generator |
| CN103138481A (en) * | 2013-03-18 | 2013-06-05 | 永济新时速电机电器有限责任公司 | Single bearing supporting generator for dumper |
| CN103441631A (en) * | 2013-09-10 | 2013-12-11 | 永济新时速电机电器有限责任公司 | Large-power asynchronous traction motor rotor |
| CN203445765U (en) * | 2013-09-11 | 2014-02-19 | 永济新时速电机电器有限责任公司 | High-power asynchronous traction motor used for AC transmission rapid passenger transport electric locomotive |
| CN203456980U (en) * | 2013-09-22 | 2014-02-26 | 宁波腾隆户外用品有限公司 | A servo motor equipped with a shaft coupling |
| CN104368956A (en) * | 2014-11-24 | 2015-02-25 | 中船动力有限公司 | Diesel engine crankshaft coupling installation tool and method |
-
2016
- 2016-07-27 CN CN201610598670.7A patent/CN106059189B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201396382Y (en) * | 2009-05-13 | 2010-02-03 | 南车株洲电力机车有限公司 | Elastic coupling |
| CN202931110U (en) * | 2012-10-23 | 2013-05-08 | 南昌康富电机技术有限公司 | Single bearing generator |
| CN102966675A (en) * | 2012-11-27 | 2013-03-13 | 大连天元电机股份有限公司 | Special involute spline fitted coupling structure for automobile traction |
| CN103138481A (en) * | 2013-03-18 | 2013-06-05 | 永济新时速电机电器有限责任公司 | Single bearing supporting generator for dumper |
| CN103441631A (en) * | 2013-09-10 | 2013-12-11 | 永济新时速电机电器有限责任公司 | Large-power asynchronous traction motor rotor |
| CN203445765U (en) * | 2013-09-11 | 2014-02-19 | 永济新时速电机电器有限责任公司 | High-power asynchronous traction motor used for AC transmission rapid passenger transport electric locomotive |
| CN203456980U (en) * | 2013-09-22 | 2014-02-26 | 宁波腾隆户外用品有限公司 | A servo motor equipped with a shaft coupling |
| CN104368956A (en) * | 2014-11-24 | 2015-02-25 | 中船动力有限公司 | Diesel engine crankshaft coupling installation tool and method |
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| CN106059189A (en) | 2016-10-26 |
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