CN104993635B - The traction electric machine of structure is detected with bearing chamber blast - Google Patents
The traction electric machine of structure is detected with bearing chamber blast Download PDFInfo
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- CN104993635B CN104993635B CN201510399731.2A CN201510399731A CN104993635B CN 104993635 B CN104993635 B CN 104993635B CN 201510399731 A CN201510399731 A CN 201510399731A CN 104993635 B CN104993635 B CN 104993635B
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- flexible pipe
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- detection flexible
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Abstract
The present invention relates to traction electric machine, the traction electric machine of structure is specially detected with bearing chamber blast.Solve the problem of existing traction electric machine is difficult to detect its bearing portion blast.The traction electric machine includes inside cap and end cap；It is fixed with the first detection flexible pipe in inside cap outer surface, one end of the first detection flexible pipe is extended at the axial labyrinth of inside cap, the other end is led to outside motor；It is provided with through hole on inside cap and end cap, through hole interior sealing is inserted with the second detection flexible pipe, one end of the second detection flexible pipe is stretched into the radially inside labyrinth of inside cap, the other end is led to outside motor；In inside cap outer wall drilling radial hole, the inclined hole linked up with radial hole is bored in the bearing chamber interior walls of inside cap, pipe screw thread is processed at radial hole, snap joint is installed at screw thread, one end of the 3rd detection flexible pipe is connected with snap joint, the other end is through leading to outside motor.The present invention provides very strong support to locomotive traction motor Design of Mechanical Structure.
Description
Technical field
The present invention relates to traction electric machine, the traction electric machine of structure is specially detected with bearing chamber blast.
Background technology
Locomotive traction motor is that rigidity is installed with gear-box, and traction electric machine driving end is mounted in gear box cavity；Work as tooth
Produce in roller box when producing negative pressure in malleation or traction electric machine rotary course, in gear-box lubricating oil can by motor bearings lid,
Bearing chamber, inside cap, labyrinth flow into motor internal.Two great harm can so be produced：1st, bearing grease is rinsed
It is lost in, causes bearing lubrication bad.2nd, grease scurries into motor cavity pollution coil, and generator stator winding insulation material can be molten by organic solvent
Solution failure, and it is bad to also result in radiating.Therefore bearing portion is needed to further investigate, in various ventilations, rotating speed
It is lower to need blast change in position needed for detecting, to instruct to balance each position air pressure during design of electrical motor or monitor the operation shape of motor
Condition.Therefore a set of reliable detection means is needed to realize.But locomotive traction motor has the characteristics that：The range of speeds is big, leads to
Air quantity changes, motor internal narrow space, and certain difficulty is brought to detection blast.
The content of the invention
The present invention solves the problem of existing traction electric machine is difficult to detect its bearing portion blast there is provided one kind with bearing chamber
Blast detects the traction electric machine of structure.
The present invention adopts the following technical scheme that realization：The traction electric machine of structure is detected with bearing chamber blast, including
Inside cap with axial labyrinth, radial labyrinth and bearing chamber, is provided with the end cap of free vent thereon；In inside cap appearance
Face is fixed with the first detection flexible pipe, and one end of the first detection flexible pipe is extended at the axial labyrinth of inside cap（I.e. inside cap with
The junction of rotor tip pressing plate）, the other end led to outside motor through the free vent on end cap；Opened on inside cap and end cap
There is the through hole that will be linked up outside the radially inside labyrinth on inside cap and motor, through hole interior sealing is inserted with the second detection flexible pipe, the
One end of two detection flexible pipes is stretched into the radially inside labyrinth of inside cap, the other end is led to outside motor；In inside cap outer wall
Drilling radial hole, the inclined hole linked up with radial hole is bored in the bearing chamber interior walls of inside cap, pipe screw thread is processed at radial hole, in spiral shell
At line install snap joint, the 3rd detection flexible pipe one end be connected with snap joint, the other end draws through the free vent on end cap
To outside motor.Because the position for needing to detect is respectively positioned on very narrow space, therefore need progress complicated in motor accessory
Design and processing.Each required detection position is drawn using PVC hose and is connected to outside motor.In use, respectively detecting flexible pipe
Motor outer end connection micro-pressure sensor wind pressure signal is converted into current signal.
, will be original it is difficult to which the work of completion, has been carried out effectively The present invention gives rational structure and the design of detection path
Attempt on ground.Experiment proves that technical scheme of the present invention can accurately detect that the blast of each small space is anti-there is provided one kind
Only bearing chamber alters the feasible check system of oil, and very strong support is provided to locomotive traction motor Design of Mechanical Structure.
Brief description of the drawings
Fig. 1 is the structure of existing traction electric machine and needs detection position schematic diagram；
Fig. 2 is the fixed structure schematic diagram of the first detection flexible pipe；
Fig. 3 is Fig. 1 partial structural diagram；
Fig. 4 is the fixed structure schematic diagram of the second detection flexible pipe；
Fig. 5 is Fig. 4 partial structural diagram；
Fig. 6 is the fixed structure schematic diagram of the 3rd detection flexible pipe；
Fig. 7 is Fig. 6 partial structural diagram.
In figure：At the labyrinth of 1- axial directions, 2- radially inside labyrinth, 3- bearing chambers, 4- inside caps, 5- end caps, 6-
First detection flexible pipe, the detection flexible pipes of 7- second, 8- radial holes, 9- inclined holes, the detection flexible pipes of 10- the 3rd.
Embodiment
The traction electric machine of structure is detected with bearing chamber blast, including with axial labyrinth, radial labyrinth and bearing chamber 3
Inside cap 4, is provided with the end cap 5 of free vent thereon；The first detection flexible pipe 6, the first inspection are fixed with the outer surface of inside cap 4
One end of survey flexible pipe 6 extends the 1, other end at the axial labyrinth of inside cap and led to through the free vent on end cap outside motor；
It is provided with inside cap 4 and end cap 5 close in the through hole that will be linked up outside the radially inside labyrinth 2 on inside cap and motor, through hole
Envelope is inserted with the second detection flexible pipe 7, and one end of the second detection flexible pipe 7 is stretched into the radially inside labyrinth 2 of inside cap, the other end draws
To outside motor；In the outer wall drilling radial hole 8 of inside cap 4, the inclined hole linked up with radial hole is bored in the inwall of bearing chamber 3 of inside cap
9, pipe screw thread is processed at radial hole, snap joint is installed at screw thread, one end of the 3rd detection flexible pipe 10 connects with snap joint
Connect, the other end is led to outside motor through the free vent on end cap.When it is implemented, being drilled with fixing hole on the surface of inside cap 4, lead to
Cross the fixture being arranged in fixing hole and realize that docile of the first detection flexible pipe 6 on inside cap outer surface is fixed.
Motor inboard bearing lid and end cap are subjected to transformation of the way processing, each chamber atmosphere of bearing is drawn out to motor by pipeline
Outside, electric signal is changed into using 268 type micro-pressure sensors by pressure signal, in eight kinds of air quantity and seven kinds of speed conditions to three
Individual position blast has carried out accurate measurement, completes each point wind pressure distribution graph, has to motor bearing chamber structure design very big
Directive significance.
Claims (2)
1. a kind of traction electric machine that structure is detected with bearing chamber blast, including with axial labyrinth, radial labyrinth and bearing chamber
（3）Inside cap（4）, the end cap of free vent is provided with thereon（5）；It is characterized in that in inside cap（4）Outer surface is fixed
There is the first detection flexible pipe（6）, the first detection flexible pipe（6）One end extend at the axial labyrinth of inside cap（1）, the other end through end
The free vent covered is led to outside motor；In inside cap（4）And end cap（5）On be provided with the radially inside fan on inside cap
Palace（2）With the through hole linked up outside motor, through hole interior sealing is inserted with the second detection flexible pipe（7）, the second detection flexible pipe（7）One end stretch
Enter the radially inside labyrinth of inside cap（2）The interior, other end is led to outside motor；In inside cap（4）Outer wall drilling radial hole（8）,
In the bearing chamber of inside cap（3）Inwall bores the inclined hole linked up with radial hole（9）, pipe screw thread is processed at radial hole, in screw thread
Place is installed by snap joint, the 3rd detection flexible pipe（10）One end be connected with snap joint, the other end is through the free vent on end cap
Lead to outside motor.
2. the traction electric machine according to claim 1 that structure is detected with bearing chamber blast, it is characterised in that in inner bearing
Lid（4）Surface is drilled with fixing hole, and the first detection flexible pipe is realized by the fixture being arranged in fixing hole（6）Outside inside cap
Docile on surface is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510399731.2A CN104993635B (en) | 2015-07-09 | 2015-07-09 | The traction electric machine of structure is detected with bearing chamber blast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510399731.2A CN104993635B (en) | 2015-07-09 | 2015-07-09 | The traction electric machine of structure is detected with bearing chamber blast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104993635A CN104993635A (en) | 2015-10-21 |
| CN104993635B true CN104993635B (en) | 2017-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510399731.2A Active CN104993635B (en) | 2015-07-09 | 2015-07-09 | The traction electric machine of structure is detected with bearing chamber blast |
Country Status (1)
| Country | Link |
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| CN (1) | CN104993635B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593297A (en) * | 2018-05-02 | 2018-09-28 | 中车永济电机有限公司 | A kind of the failure method for prefabricating and system of bearing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1196553A (en) * | 1968-03-07 | 1970-07-01 | Atomic Energy Authority Uk | Improvements in sealed journal bearings |
| US4376389A (en) * | 1979-11-26 | 1983-03-15 | Hitachi, Ltd. | Method of diagnosis of operating conditions of bearing and apparatus therefor |
| CN201238229Y (en) * | 2008-08-06 | 2009-05-13 | 永济新时速电机电器有限责任公司 | Traction motor for locomotive |
| CN101478190A (en) * | 2008-12-30 | 2009-07-08 | 洛阳轴研科技股份有限公司 | Air sealing construct design for electric main shaft of oil grease mill |
-
2015
- 2015-07-09 CN CN201510399731.2A patent/CN104993635B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1196553A (en) * | 1968-03-07 | 1970-07-01 | Atomic Energy Authority Uk | Improvements in sealed journal bearings |
| US4376389A (en) * | 1979-11-26 | 1983-03-15 | Hitachi, Ltd. | Method of diagnosis of operating conditions of bearing and apparatus therefor |
| CN201238229Y (en) * | 2008-08-06 | 2009-05-13 | 永济新时速电机电器有限责任公司 | Traction motor for locomotive |
| CN101478190A (en) * | 2008-12-30 | 2009-07-08 | 洛阳轴研科技股份有限公司 | Air sealing construct design for electric main shaft of oil grease mill |
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| Publication number | Publication date |
|---|---|
| CN104993635A (en) | 2015-10-21 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20160802 Address after: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Applicant after: CHINA RAILWAY CORPORATION Applicant after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Applicant before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |
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| GR01 | Patent grant |