CN101588117B - Variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive - Google Patents
Variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive Download PDFInfo
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- CN101588117B CN101588117B CN2009100746590A CN200910074659A CN101588117B CN 101588117 B CN101588117 B CN 101588117B CN 2009100746590 A CN2009100746590 A CN 2009100746590A CN 200910074659 A CN200910074659 A CN 200910074659A CN 101588117 B CN101588117 B CN 101588117B
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Abstract
The present invention relates to a motor, and particularly to a variable-frequency speed-regulating asynchronous traction motor for the high-speed AC passenger locomotive. The invention settles the problem that no large-power, high-rotating-speed and high-voltage motor exists at present. The end plane at the non-transmission end of the rotating shaft is provided with a shaft brush holder. The copper conducting bar and the copper end ring are made of high-strength alloy copper CuCrZr. The protecting ring is made of high-strength alloy steel 50Mn18Cr5. The end cap is provided with a cylinder sleeve. The bearing at the transmission end of the rotating shaft is sleeved with an inner cap of the bearing. The back side of the bearing is provided with a pinion. The cylinder sleeve is provided withan arc transmission opening, an oil inlet through opening, a main oil return opening and an auxiliary oil return opening. The inner cap of the bearing is provided with an oil through opening. The out er cap of the bearing is provided with a groove. The shaft sleeve part of the pinion is fixed with an oil striker. The back side of the oil striker is provided with a back inner sealing ring. The backinner sealing ring is fixed with the protecting cap and furthermore the inner ring of the back inner sealing ring is provided with an annular seal groove. The lower part of the annular seal groove is provided with an oil leakage channel. The variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive can operate under high rotating speed and satisfy the power requirement of the high-speed AC passenger locomotive.
Description
Technical field
The present invention relates to motor, particularly high-power, high rotating speed, high voltage asynchronous traction motor are specially a kind of variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive.
Background technology
In order to adapt to Chinese Railway great-leap-forward development requirement, it is the inexorable trend of technical development that railway locomotive adopts the alternating current drive technology.Asynchronous traction motor is critical component and the device that exchanges in the electric driving vehicle.Exchanging electric driving vehicle is power with variable-frequency control asynchronous traction motor, right by gear box driving machine wheel.Therefore, the high-speed railway passenger locomotive needs high-revolving traction motor, and will export the torque suitable with freight locomotive simultaneously, and this just requires the passenger locomotive traction electric machine than the bigger power of freight locomotive motor output.Because consider the influence of distribution during design, it is very high to wish that electric current hour voltage just can rise, therefore, exchanging the high speed passenger transportation locomotive just needs a kind of high-power, high rotating speed, high-tension variable-frequency control asynchronous traction motor.And China does not also have 200km/h to exchange Passenger Electric Locomotive at a high speed, mainly is because the power of locomotive traction motor does not also have to reach the motor of 1640kW (exchanging the required power that reaches of Passenger Electric Locomotive motor at a high speed); This motor voltage when driving 200km/h exchanges Passenger Electric Locomotive at a high speed need be promoted to 2942V simultaneously, and maximum speed need be promoted to 3821r/min.At present in relevant motor basic theory and other practical writing are offered, relate to high-power, high rotating speed, high-tension passenger traffic alternating current transmission electric power locomotive does not almost have with the bibliographical information of variable-frequency control asynchronous traction motor configuration aspects.
Summary of the invention
The present invention does not have a kind of high-power, high rotating speed, high-tension motor now in order to solve, and existing motor can not solve the problem of the required power of 200km/h AC passenger locomotive work, and a kind of variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive is provided.
The present invention adopts following technical scheme to realize: variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive, comprise rotating shaft, end cap, stator core, stator winding, the rotor core that compresses and form by rotor punching by preceding trim ring and back trim ring, contain the rotor winding of copper sliver and copper end ring and be positioned at the outer retaining ring of rotor copper end ring, rotating shaft non-transmision end end face center is provided with a brush carrier, copper sliver and copper end ring are made by high-strength alloy copper CuCrZr material, retaining ring is made by high strength alloy steel 50Mn18Cr5 material, the end cap center is provided with forward the cylindrical sleeve that (direction of end cap outside) stretches out, the rotating shaft driving end is placed in the cylindrical sleeve by bearing, be with on the bearing and the fixing internal bearing cover of cylindrical sleeve front end, be pressed with the bearing end cover that is fixed on the internal bearing cover on the bearing front end face, the bearing rear side is provided with the pinion that is fixed in the rotating shaft, pinion partly is made of the driving cog part of front portion and the axle sleeve at rear portion, has the arcuation driving hole corresponding with the driving cog of pinion on the face of cylinder of cylindrical sleeve; The cylindrical sleeve top has the oil-feed through hole, have the oil through that communicates with bearing chamber and oil-feed through hole on the internal bearing cover, bearing end cover rear end face below has groove with the stop portion of internal bearing cover, have the oil through that communicates with groove on the internal bearing cover, the cylindrical sleeve bottom has the main spill port that can be communicated with oil through, be fixed with disc on the pinion axle sleeve part, the disc rear side is provided with the back internal sealed ring that is through on the pinion axle sleeve part, be fixed with on the back internal sealed ring with the fixing protective cover of end cap inwall and at the inner ring of back internal sealed ring and have some annular seal grooves radially, annular seal groove bottom has the leakage of oil passage, cylindrical sleeve bottom have can with the auxilliary spill port of leakage of oil channel connection.In order to protect bearing, prevent the damage of shaft current to bearing, in rotating shaft, be provided with a brush carrier, an axle brush carrier is located at rotating shaft end face center and is located on the rotating shaft diameter of axle with traditional structure axis brush carrier and compares, and linear velocity is reduced to minimum, and the abrasion loss of axle brush carrier also reaches minimum; Copper end ring, copper sliver and retaining ring all adopt high-strength material simultaneously, can make rotor turn up 130m/s, satisfy the requirement of traction motor high speed rotating; Gear box is that sealing shroud is on cylindrical sleeve, gear wheel and pinion in the gear box mesh by the arc driving hole on the cylindrical sleeve, lubricating oil in the gear box rotates through gear and flows through the oil-feed through hole that communicates with gear box after taking up and the oil through of internal bearing cover upper end enters bearing chamber, thereby bearing is lubricated, after the oil in the bearing chamber advances to expire, the oil through that flows through the groove of bearing end cover stop portion and communicate with groove enters the cylindrical sleeve intracavity bottom, and then flow back to gear box by main spill port, form the loop of a circulation.In order to prevent that the lubricating oil in the bearing chamber from flowing into motor internal, rotating shaft rotation drives disc and rotates together that (disc is a common structure on the motor, mainly be to be used for cooperating with the end cap inwall, prevent that lubricating oil from flowing into motor internal), the oil that will flow to motor internal is thrown out of, flow back to gear box from the main spill port of cylindrical sleeve bottom, flow through disc as a little lubricating oil and enter the back during internal sealed ring, also can go out from the annular seal concentrated flow of back internal sealed ring inner ring, thereby flow into cavity through the leakage of oil passage, flow back to gear box by auxilliary spill port again, thereby realize the sealing of lubricating oil.
Before trim ring and back all be fixed with balancing patch on the trim ring, during the dynamic balancing of debugging motor, the quantity by increase and decrease balancing patch on the radially-arranged neck in the center of circle of preceding trim ring and back trim ring overcomes the influence of centrifugal force to it.
The driving end bearing is the NU2322ECM/C5 roller bearing, and the non-transmision end of rotating shaft is provided with auxiliary bearing, and auxiliary bearing is the NJ2218ECM/C4 roller bearing, by the setting to bearing designation, can satisfy traction motor and turn round under fast state.
Stator core is full lamination (compressed stator punching and be welded by arm-tie by trim ring before and after the stator), and stator punching is ten hexagon stator punchings, and its grooved is a recoil pit, and the degree of depth of recoil pit is 9mm.Not only effectively utilized the space under the engine truck, and compared with the degree of depth 1-3mm of traditional slot and to have realized ventilation and heat preferably.
Stator winding adopts moulding winding (being that the winding conductor cross section is single cross section), the used coil of moulding winding is 200 grades of corona-resistant films (Du Pont's film), 2/3 wrapped flat type copper wires, the used impregnating varnish of motor is 200 class F insulations lacquers, select the moulding winding to be because its failure rate is low, it is higher to use reliability, and, prevented the ability to bear of coil when motor runs up effectively owing to select coil preferably.
The present invention is by to the change of motor internal pinionmw position and the design that lubrication system is arranged of bearing, make motor operate as normal under high rotating speed, and pass through the copper end ring, the structural design of copper sliver and retaining ring and material selection are that motor is at high voltage, high-power operate as normal down, the structural design of axle brush carrier is avoided the excessive bigger problem of friction that causes of motor linear velocity when running up, has the efficient height, temperature rise is low, advantage such as safe and reliable, variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive has been applied to 200km/h and has exchanged in the Passenger Electric Locomotive at present.
Description of drawings
Fig. 1 is the structural representation of variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive of the present invention;
Fig. 2 is the partial enlarged drawing of A in the variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive of the present invention;
Fig. 3 is the left view of the bearing end cover of variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive of the present invention;
Fig. 4 is the B-B cutaway view of Fig. 3;
Fig. 5 is the front view of the cylindrical sleeve of variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive of the present invention;
Fig. 6 is the vertical view of the cylindrical sleeve of variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive of the present invention.
1-rotating shaft among the figure, 2-cylindrical sleeve, 3-bearing chamber, 4-bearing, 5-internal bearing cover, the 6-bearing end cover, 7-oil-feed through hole, 8-groove, 9-are assisted spill port, 10-master's spill port, and 11, the 12-oil through, the 13-pinion, internal sealed ring behind the 14-, 15-annular seal groove, 16-leakage of oil passage, 17-auxiliary bearing, 18-axle brush carrier, 19-retaining ring, 20-copper end ring, outer seal ring behind the 21-, the 22-disc, 23-driving hole, 24 protective covers, 25-end cap, the 26-stator core, 27-stator winding, 28-rotor core, 29-copper sliver.
Embodiment
Variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive, comprise rotating shaft 1, end cap 25, stator core 26, stator winding 27, the rotor core 28 that compresses and form by rotor punching by preceding trim ring and back trim ring, contain the rotor winding of copper sliver 29 and copper end ring 20 and be positioned at rotor copper end ring 20 retaining ring 19 outward, rotating shaft 1 non-transmision end end face center is provided with a brush carrier 18, copper sliver 29 and copper end ring 20 are made by high-strength alloy copper CuCrZr material, retaining ring 19 is made by high strength alloy steel 50Mn18Cr5 material, end cap 25 centers are provided with forward the cylindrical sleeve 2 that (direction of end cap outside) stretches out, rotating shaft 1 driving end is placed in the cylindrical sleeve 2 by bearing 4, be with on the bearing 4 and the fixing internal bearing cover 5 of cylindrical sleeve 2 front ends, be pressed with the bearing end cover 6 that is fixed on the internal bearing cover 5 on bearing 4 front end faces, bearing 4 rear sides are provided with the pinion 13 that is fixed in the rotating shaft 1, pinion 13 partly is made of the driving cog part of front portion and the axle sleeve at rear portion, has the arcuation driving hole 23 corresponding with the driving cog of pinion 13 on the face of cylinder of cylindrical sleeve 2; Cylindrical sleeve 2 tops have oil-feed through hole 7, have the oil through 11 that communicates with bearing chamber 3 and oil-feed through hole 7 on the internal bearing cover 5, bearing end cover 6 rear end faces below has groove 8 with the stop portion of internal bearing cover 5, have the oil through 12 that communicates with groove 8 on the internal bearing cover 5, cylindrical sleeve 2 bottoms have the main spill port 10 that can be communicated with oil through 12, be fixed with disc 22 on the pinion 13 axle sleeves part, disc 22 rear sides are provided with the back internal sealed ring 14 that is through on the pinion 13 axle sleeves part, be fixed with on the back internal sealed ring 14 with the fixing protective cover 24 of end cap 25 inwalls and at the inner ring of back internal sealed ring 14 and have some annular seal grooves 15 radially, annular seal groove 15 bottoms have leakage of oil passage 16, and cylindrical sleeve 2 bottoms have the auxilliary spill port 9 that can be communicated with leakage of oil passage 16.All be fixed with balancing patch on preceding trim ring and the back trim ring; Driving end bearing 4 is the NU2322ECM/C5 roller bearing, and the non-transmision end of rotating shaft 1 is provided with auxiliary bearing 17, and auxiliary bearing 17 is the NJ2218ECM/C4 roller bearing; Stator core 26 is full lamination (compressed stator punching and be welded by arm-tie by trim ring before and after the stator), and stator punching is ten hexagon stator punchings, and its grooved is a recoil pit, and the degree of depth of recoil pit is 9mm; Stator winding 27 adopts moulding winding (being that the winding conductor cross section is single cross section), and the used coil of moulding winding is 200 grades of corona-resistant films (Du Pont's film), 2/3 wrapped flat type copper wires, and the used impregnating varnish of motor is 200 class F insulations lacquers.Internal bearing cover 5 and cylindrical sleeve 2 front ends, bearing end cover 6 all can pass through bolt with internal bearing cover 5, back internal sealed ring 14 and protective cover 24, all can fix between protective cover 24 and the end cap 25 by interference fit, protective cover 24 mainly is to design in order to adjust distance between back internal sealed ring 14 and end cap 25 inwalls in the installation process of motor, pinion 13 passes through the interference fit tensioner in rotating shaft 1, the stop portion that both sides, bearing end cover 6 inner faces vertical center line bottom are 45 ° all has groove 8, offer groove 8 in this position and can guarantee that lubricating oil can not flow back to gear box fast, good is lubricated bearing.Leakage of oil passage 16 is by opening vertical hole, the transverse holes that communicates with vertical hole on the internal sealed ring 14 of back in internal sealed ring 14 annular seal grooves 15 bottoms, back and opening can form with the vertical hole that transverse holes is linked up on protective cover 24.Also be with the back outer seal ring 21 of fixing with protective cover 24 in the rotating shaft 1 of back internal sealed ring 14 rear sides, the inner ring of the outer seal ring 21 in back has some annular seal grooves radially.Rotating shaft 1 is equipped with some (more than or equal to two) annular seal groove radially with the inwall of the outer seal ring 21 in back, the outer seal ring 21 of back internal sealed ring 14 and back, thereby has improved the effect of sealing effectively.Stator punching adopts the low-loss silicon steel sheet, has the ventilation hole of array on it, from the driving end air intake of rotating shaft 1, passes ventilation hole on the stator punching from the non-transmision end air-out of rotating shaft 1.
The important technological parameters of variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive is as follows: type: squirrel-cage asynchronous motor
Rated power: 1640kW
Rated voltage: 2942V
Rated current: 382A
Rated frequency: 96.5Hz
Rated speed: 1911r/min
Rated power factor: 〉=0.88
Rated efficiency: 〉=95.3%
Permanent merit maximum speed: 3810r/min
Maximum speed: 4180r/min
Nominal torque: 8200N.m
Breakdown torque: 11375N.m
The class of insulation: 200 grades
Draft type: forced ventilation
Air quantity: 1.4m3/s
Weight: 2450kg
Claims (10)
1. variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive, comprise rotating shaft (1), end cap (25), stator core (26), stator winding (27), the rotor core (28) that compresses and form by rotor punching by preceding trim ring and back trim ring, contain the rotor winding of copper sliver (29) and copper end ring (20) and be positioned at the outer retaining ring (19) of rotor copper end ring (20), it is characterized in that: rotating shaft (1) non-transmision end end face center is provided with a brush carrier (18), copper sliver (29) and copper end ring (20) are made by high-strength alloy copper CuCrZr material, retaining ring (19) is made by high strength alloy steel 50Mn18Cr5 material, end cap (25) center is provided with the cylindrical sleeve (2) of stretching out forward, rotating shaft (1) driving end is placed in the cylindrical sleeve (2) by bearing (4), be with on the bearing (4) and the fixing internal bearing cover (5) of cylindrical sleeve (2) front end, be pressed with the bearing end cover (6) that is fixed on the internal bearing cover (5) on bearing (4) front end face, bearing (4) rear side is provided with the pinion (13) that is fixed in the rotating shaft (1), pinion (13) partly is made of the driving cog part of front portion and the axle sleeve at rear portion, has the arcuation driving hole (23) corresponding with the driving cog of pinion (13) on the face of cylinder of cylindrical sleeve (2); Cylindrical sleeve (2) top has oil-feed through hole (7), have second oil through (11) that communicates with bearing chamber (3) and oil-feed through hole (7) on the internal bearing cover (5), bearing end cover (6) rear end face below has groove (8) with the stop portion of internal bearing cover (5), have first oil through (12) that communicates with groove (8) on the internal bearing cover (5), cylindrical sleeve (2) bottom has the main spill port (10) that can be communicated with first oil through (12), be fixed with disc (22) on pinion (13) the axle sleeve part, disc (22) rear side is provided with the back internal sealed ring (14) that is through on pinion (13) the axle sleeve part, be fixed with on the back internal sealed ring (14) with the fixing protective cover (24) of end cap (25) inwall and at the inner ring of back internal sealed ring (14) and have some annular seal grooves (15) radially, annular seal groove (15) bottom has leakage of oil passage (16), and cylindrical sleeve (2) bottom has the auxilliary spill port (9) that is communicated with leakage of oil passage (16).
2. variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive according to claim 1 is characterized in that: all be fixed with balancing patch on preceding trim ring and the back trim ring.
3. variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive according to claim 1 and 2, it is characterized in that: driving end bearing (4) is the NU2322ECM/C5 roller bearing, the non-transmision end of rotating shaft (1) is provided with auxiliary bearing (17), and auxiliary bearing (17) is the NJ2218ECM/C4 roller bearing.
4. variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive according to claim 1 and 2, it is characterized in that: stator core (26) is full lamination, stator punching is ten hexagon stator punchings, and its grooved is a recoil pit, and the degree of depth of recoil pit is 9mm.
5. variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive according to claim 3 is characterized in that: stator core (26) is full lamination, and stator punching is ten hexagon stator punchings, and its grooved is a recoil pit, and the degree of depth of recoil pit is 9mm.
6. variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive according to claim 1 and 2, it is characterized in that: stator winding (27) adopts the moulding winding, the used coil of moulding winding is 200 grades of corona-resistant films, 2/3 wrapped flat type copper wires, and the used impregnating varnish of motor is 200 class F insulations lacquers.
7. variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive according to claim 3, it is characterized in that: stator winding (27) adopts the moulding winding, the used coil of moulding winding is 200 grades of corona-resistant films, 2/3 wrapped flat type copper wires, and the used impregnating varnish of motor is 200 class F insulations lacquers.
8. variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive according to claim 4, it is characterized in that: stator winding (27) adopts the moulding winding, the used coil of moulding winding is 200 grades of corona-resistant films, 2/3 wrapped flat type copper wires, and the used impregnating varnish of motor is 200 class F insulations lacquers.
9. variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive according to claim 1 and 2, it is characterized in that: also be with in the rotating shaft (1) of back internal sealed ring (14) rear side and the fixing back outer seal ring (21) of protective cover (24), the inner ring of the outer seal ring in back (21) has some annular seal grooves radially.
10. variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive according to claim 3, it is characterized in that: also be with in the rotating shaft (1) of back internal sealed ring (14) rear side and the fixing back outer seal ring (21) of protective cover (24), the inner ring of the outer seal ring in back (21) has some annular seal grooves radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100746590A CN101588117B (en) | 2009-06-02 | 2009-06-02 | Variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100746590A CN101588117B (en) | 2009-06-02 | 2009-06-02 | Variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive |
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| CN101588117A CN101588117A (en) | 2009-11-25 |
| CN101588117B true CN101588117B (en) | 2011-04-06 |
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| CN2009100746590A Expired - Fee Related CN101588117B (en) | 2009-06-02 | 2009-06-02 | Variable-frequency speed-regulating asynchronous traction motor for high-speed AC passenger locomotive |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324822A (en) * | 2011-10-17 | 2012-01-18 | 永济新时速电机电器有限责任公司 | Variable frequency speed control three-phase asynchronous motor for high-speed rolling test bed |
| CN102386721B (en) * | 2011-11-10 | 2013-06-19 | 沈阳化工大学 | Hydraulic bulging protective casing for shroud ring of generator |
| CN103187819A (en) * | 2011-12-27 | 2013-07-03 | 佳木斯电机股份有限公司 | Rotor end part structure for drive motor of main helium fan |
| CN104682644A (en) * | 2015-03-30 | 2015-06-03 | 永济新时速电机电器有限责任公司 | Variable frequency and adjustable speed asynchronous motor for marine drilling platform winch |
| US10845263B2 (en) | 2018-04-17 | 2020-11-24 | Mks Instruments, Inc. | Thermal conductivity gauge |
| CN110375059B (en) * | 2019-07-17 | 2024-04-09 | 成都中车电机有限公司 | Traction motor bearing sealing structure and installation method |
| CN111412266B (en) * | 2020-03-26 | 2022-02-11 | 东风汽车集团有限公司 | Mounting structure suitable for hybrid transmission motor gear shaft |
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2009
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