CN107719400B - Permanent magnet direct-drive traction transmission device of railway vehicle - Google Patents
Permanent magnet direct-drive traction transmission device of railway vehicle Download PDFInfo
- Publication number
- CN107719400B CN107719400B CN201711007702.2A CN201711007702A CN107719400B CN 107719400 B CN107719400 B CN 107719400B CN 201711007702 A CN201711007702 A CN 201711007702A CN 107719400 B CN107719400 B CN 107719400B
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- wheel
- traction motor
- assembly
- framework
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
Abstract
The invention discloses a permanent magnet direct-drive traction transmission device of a railway vehicle, which comprises a permanent magnet traction motor, a bent beam assembly, a wheel pair assembly, an elastic suspension device, an elastic coupling, a supporting spring and a framework. The permanent magnet traction motor is adopted to directly drive the wheel pairs to run, a gear box is omitted, the defects of impact, collision, noise, oil leakage and the like caused by the gear box are avoided, a transmission chain is shortened, and transmission efficiency is improved. The invention cancels the gear box, and adopts a bracket-type suspension mode for the permanent magnet traction motor, thereby reducing unsprung mass directly acting on the wheel set and improving the overall running performance of the railway vehicle. The invention adopts the bent connecting beam structure to connect the wheel pairs at the two ends into a whole, provides a space installation position for the permanent magnet traction motor, avoids directly pressing the rotor of the permanent magnet traction motor on the axle, and ensures that the permanent magnet traction motor is an independent component, thereby being convenient for assembly and later maintenance.
Description
Technical Field
The invention relates to a permanent magnet direct-drive traction transmission device for a railway vehicle, in particular to a permanent magnet direct-drive traction transmission device for locomotives, motor cars, urban rails and subways.
Background
The traction transmission device of the railway vehicle can transmit the rotation moment generated by the traction motor to the wheel set, is a core unit for realizing the electromechanical energy conversion of the railway vehicle, and has key and decisive effects on improving the power quality, the wheel track relationship, the running performance and the like of the railway vehicle by improving the performance of the traction motor and optimizing the structure of an auxiliary system thereof.
At present, a traction transmission device of a rail vehicle in China generally adopts a three-phase alternating current asynchronous traction motor as a power output source, and transmits power to wheel pairs through a gear box. The gear box is generally directly pressed on the moving shaft to which the wheel pair belongs, so that unsprung mass of the bogie is increased, wheel-track relation, running performance and overall performance of the railway vehicle are seriously affected, and the gear box has a plurality of defects of more mechanical faults, high maintenance cost and the like in the running process; in addition, the gearbox also has problems such as oil leakage and noise.
Therefore, a mechanical gear box is omitted, and the direct driving wheel pair operation of a permanent magnet synchronous motor with high power density is a key for solving the problems.
The Chinese patent ZL200910011291.3 proposes a novel permanent magnet direct-drive traction transmission scheme of the motor train, adopts a novel coupling and traction motor suspension mode, and cancels a gear box; the patent improves the running performance of the locomotive and the motor car bogie, but the following disadvantages still exist:
1. the movable shaft to which the wheel pair belongs directly penetrates through the center of the traction motor, so that the requirement on assembly precision is high in the connecting process, and the motor and the wheel pair are integrally assembled and disassembled, so that the later maintenance of the motor or the wheel pair is not facilitated;
2. although an elastic device is adopted between the output hollow shaft of the traction motor and the wheel set shaft to reduce vibration impact, the vibration absorption performance of the structure is limited due to the limited space at the lower part of the bogie and smaller radial space;
3. the output shaft of the traction motor adopts a frame-bearing type suspension scheme, but the rotor of the traction motor is still unsprung mass, and the impact on the internal bearing of the traction motor is larger along with the rotation vibration of the wheels in the operation process, so that the whole operation life of the traction motor is influenced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the permanent magnet direct-drive traction transmission device for the railway vehicle, which not only can lighten unsprung mass and improve transmission efficiency, but also can facilitate the assembly and maintenance of a bogie, improve shock resistance and prolong service life.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the permanent magnet direct-drive traction transmission device of the railway vehicle comprises a permanent magnet traction motor, a bent beam assembly, a wheel pair assembly, an elastic suspension device, an elastic coupling, a supporting spring and a framework;
the permanent magnet traction motor comprises a shell, a stator, a rotor and a power output shaft, wherein the stator is pressed inside the shell, and the rotor is pressed on the power output shaft; the two ends of the power output shaft are supported by bearings and adopt a double-end simultaneous output structure;
the bent beam assembly comprises a bent connecting beam, a left support bearing and a right support bearing; the bent connecting beam adopts a U-shaped structure, two ends of the bent connecting beam are provided with two concentric holes coaxial with the wheel pair assembly, and a left support bearing and a right support bearing are arranged in the concentric holes;
the wheel set assembly adopts a split type structure and comprises wheels at two ends and a wheel moving shaft; the wheel moving shaft is pressed at the center of the wheel;
the permanent magnet traction motor is positioned in the middle of the U-shaped structure of the bent connecting beam, is connected with the framework through an elastic suspension device, and the two ends of the power output shaft of the permanent magnet traction motor are respectively connected with the inner sides of the wheel moving shafts at the two ends through elastic couplings at the two ends;
the wheel moving shafts at the left end and the right end are respectively connected with the two ends of the bent connecting beam through a left supporting bearing and a right supporting bearing and are connected into a whole;
the supporting spring is arranged between the framework and the power output shaft and is used for supporting the framework.
Further, the supporting springs are positioned at the outer sides of the wheel set assembly, the lower parts of the supporting springs at the left side and the right side are connected with axle boxes at the left side and the right side, and the upper parts of the supporting springs are connected with the framework; the axle box is positioned at the outer side of the wheel set assembly and sleeved on the wheel moving shaft;
further, the supporting springs are positioned at the inner side of the wheel set assembly, the lower parts of the supporting springs at the left side and the right side are respectively connected with two ends of the bent connecting beam, and the upper parts of the supporting springs are connected with the framework.
Further, the whole device is bilaterally symmetrical.
Compared with the prior art, the invention has the following obvious outstanding properties and remarkable advantages:
1. the invention adopts the permanent magnet traction motor to directly drive the wheel pairs to run, eliminates the gear box, avoids the defects of impact, collision, noise, oil leakage and the like caused by the gear box, shortens the transmission chain and improves the transmission efficiency.
2. The invention eliminates the gear box, and adopts the bracket-type suspension mode for the permanent magnet traction motor, thereby reducing unsprung mass directly acting on the wheel set and improving the overall running performance of the railway vehicle.
3. The invention adopts the bent connecting beam structure to connect the wheel pairs at the two ends into a whole, provides a space installation position for the permanent magnet traction motor, avoids directly pressing the rotor of the permanent magnet traction motor on the axle, and ensures that the permanent magnet traction motor is an independent component, thereby being convenient for assembly and later maintenance.
4. The two ends of the output shaft of the permanent magnet traction motor are connected with the wheel moving shafts through the elastic couplings, so that the impact of the wheels on the permanent magnet traction motor in the running process is effectively reduced, the vibration resistance of the permanent magnet traction motor is improved, the bearings of the permanent magnet traction motor are protected, and the service life of the permanent magnet traction motor is prolonged.
5. In conclusion, the permanent magnet direct-drive traction device for the railway vehicle improves the running transmission efficiency of the railway vehicle, reduces unsprung mass, improves the assembly process of the bogie of the railway vehicle, reduces vibration and impact on a permanent magnet traction motor in the running process of the railway vehicle, and improves the overall running performance of the railway vehicle.
Drawings
FIG. 1 is a schematic view of the structure of the support spring of the present invention outside the wheel set assembly.
FIG. 2 is a schematic view of the structure of the support spring of the present invention inside the wheel set assembly.
In the figure: 1. the device comprises a shell, 2, a stator, 3, a rotor, 4, a power output shaft, 5, a bent connecting beam, 6, a left support bearing, 7, a wheel, 8, a wheel axle, 9, an elastic suspension device, 10, a framework, 11, an elastic coupling, 12, an axle box, 13, a right support bearing, 14, a bearing, 15 and a support spring.
Detailed Description
The invention is further described below with reference to the accompanying drawings. As shown in fig. 1-2, the permanent magnet direct drive traction transmission device of the railway vehicle comprises a permanent magnet traction motor, a bent beam assembly, a wheel set assembly, an elastic suspension device 9, an elastic coupling 11, a supporting spring 15 and a framework 10;
the permanent magnet traction motor comprises a shell 1, a stator 2, a rotor 3 and a power output shaft 4, wherein the stator 2 is pressed inside the shell 1, and the rotor 3 is pressed on the power output shaft 4; the two ends of the power output shaft 4 are supported by bearings 14 and adopt a double-end simultaneous output structure;
the bent beam assembly comprises a bent connecting beam 5, a left support bearing 6 and a right support bearing 13; the bent connecting beam 5 adopts a U-shaped structure, two ends of the bent connecting beam are provided with two concentric holes coaxial with the wheel pair assembly, and the left support bearing 6 and the right support bearing 13 are arranged in the concentric holes;
the wheel set assembly adopts a split structure and comprises wheels 7 at two ends and a wheel moving shaft 8; the wheel moving shaft 8 is pressed at the center of the wheel 7;
the permanent magnet traction motor is positioned in the middle of the U-shaped structure of the bent connecting beam 5, is connected with the framework 10 through the elastic suspension device 9, and the two ends of the power output shaft 4 are respectively connected with the inner sides of the wheel moving shafts 8 at the two ends through the elastic couplings 11 at the two ends;
the wheel moving shafts 8 at the left and right ends are connected with the two ends of the bent connecting beam 5 through the left supporting bearing 6 and the right supporting bearing 13 respectively and are connected into a whole;
the supporting spring 15 is installed between the frame 10 and the power take-off shaft 4 for supporting the frame 10.
As shown in fig. 1, the supporting springs 15 are positioned at the outer side of the wheel set assembly, the lower parts of the supporting springs 15 at the left and right sides are connected with the axle boxes 12 at the left and right sides, and the upper parts are connected with the framework 10; the axle box 12 is positioned at the outer side of the wheel set assembly and sleeved on the wheel moving shaft 8;
as shown in fig. 2, the supporting springs 15 are located at the inner side of the wheel set assembly, and the lower parts of the supporting springs 15 at the left and right sides are respectively connected with the two ends of the bent connecting beam 5, and the upper parts are connected with the frame 10.
Further, the whole device is bilaterally symmetrical.
The present invention is not limited to the present embodiment, and any equivalent concept or modification within the technical scope of the present invention is listed as the protection scope of the present invention.
Claims (4)
1. Permanent magnet direct-drive traction transmission device for railway vehicles is characterized in that: comprises a permanent magnet traction motor, a bent beam assembly, a wheel set assembly, an elastic suspension device (9), an elastic coupler (11), a supporting spring (15) and a framework (10);
the permanent magnet traction motor comprises a shell (1), a stator (2), a rotor (3) and a power output shaft (4), wherein the stator (2) is pressed inside the shell (1), and the rotor (3) is pressed on the power output shaft (4); the two ends of the power output shaft (4) are supported by bearings (14) and adopt a double-end simultaneous output structure;
the bent beam assembly comprises a bent connecting beam (5), a left support bearing (6) and a right support bearing (13); the bent connecting beam (5) adopts a U-shaped structure, two ends of the bent connecting beam are provided with two concentric holes coaxial with the wheel pair assembly, and the left support bearing (6) and the right support bearing (13) are arranged in the concentric holes;
the wheel set assembly adopts a split type structure and comprises wheels (7) at two ends and a wheel moving shaft (8); the wheel moving shaft (8) is pressed at the center of the wheel (7);
the permanent magnet traction motor is positioned in the middle of the U-shaped structure of the bent connecting beam (5), is connected with the framework (10) through the elastic suspension device (9), and the two ends of the power output shaft (4) are respectively connected with the inner sides of the wheel moving shafts (8) at the two ends through the elastic couplings (11) at the two ends;
the wheel moving shafts (8) at the left end and the right end are respectively connected with the two ends of the bent connecting beam (5) through the left supporting bearing (6) and the right supporting bearing (13) and are connected into a whole;
the supporting spring (15) is arranged between the framework (10) and the power output shaft (4) and is used for supporting the framework (10).
2. The permanent magnet direct drive traction drive of a railway vehicle of claim 1, wherein: the supporting springs (15) are positioned at the outer sides of the wheel set assembly, the lower parts of the supporting springs (15) at the left side and the right side are connected with axle boxes (12) at the left side and the right side, and the upper parts of the supporting springs are connected with the framework (10); the axle box (12) is positioned at the outer side of the wheel set assembly and sleeved on the wheel moving shaft (8).
3. The permanent magnet direct drive traction drive of a railway vehicle of claim 1, wherein: the support springs (15) are positioned at the inner side of the wheel set assembly, the lower parts of the support springs (15) at the left side and the right side are respectively connected with two ends of the bent connecting beam (5), and the upper parts of the support springs are connected with the framework (10).
4. A rail vehicle permanent magnet direct drive traction drive as claimed in claim 1, 2 or 3, wherein: the whole device is bilaterally symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711007702.2A CN107719400B (en) | 2017-10-25 | 2017-10-25 | Permanent magnet direct-drive traction transmission device of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711007702.2A CN107719400B (en) | 2017-10-25 | 2017-10-25 | Permanent magnet direct-drive traction transmission device of railway vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107719400A CN107719400A (en) | 2018-02-23 |
| CN107719400B true CN107719400B (en) | 2023-05-16 |
Family
ID=61213693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711007702.2A Active CN107719400B (en) | 2017-10-25 | 2017-10-25 | Permanent magnet direct-drive traction transmission device of railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107719400B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018009993A1 (en) * | 2018-12-19 | 2020-06-25 | Süddeutsche Gelenkscheibenfabrik GmbH & Co. KG | Drive arrangement for a rail vehicle |
| CN111703461B (en) * | 2020-06-22 | 2021-05-04 | 中车唐山机车车辆有限公司 | Bogie for railway vehicle and railway vehicle |
| CN112319518A (en) * | 2020-10-23 | 2021-02-05 | 泰安阳光动力电机有限公司 | Driving structure of electric locomotive |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197021A (en) * | 2015-09-22 | 2015-12-30 | 南车南京浦镇车辆有限公司 | Motor hold shaft installation type permanent-magnetic direct-drive bogie |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4912604U (en) * | 1972-05-10 | 1974-02-02 | ||
| JP2005262917A (en) * | 2004-03-16 | 2005-09-29 | Toshiba Corp | Direct drive main electric motor |
| CN101683855B (en) * | 2009-04-24 | 2011-08-17 | 大连交通大学 | Novel locomotive traction transmission device |
| CN104417570B (en) * | 2013-08-23 | 2016-12-28 | 常州长青交通科技股份有限公司 | Railway vehicle wheel is to electric-machine directly-driven system |
| CN204956499U (en) * | 2015-09-30 | 2016-01-13 | 南车南京浦镇车辆有限公司 | Tire low -floor bogie |
| CN106515750A (en) * | 2016-09-30 | 2017-03-22 | 中车南京浦镇车辆有限公司 | Permanent magnet direct drive subway train |
| CN207374410U (en) * | 2017-10-25 | 2018-05-18 | 大连交通大学 | Rail vehicle permanent magnet direct-drive towing gear |
-
2017
- 2017-10-25 CN CN201711007702.2A patent/CN107719400B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197021A (en) * | 2015-09-22 | 2015-12-30 | 南车南京浦镇车辆有限公司 | Motor hold shaft installation type permanent-magnetic direct-drive bogie |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107719400A (en) | 2018-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018058996A1 (en) | Permanent magnet direct drive subway train | |
| US20220009528A1 (en) | Permanent magnet direct-drive bogie and rail vehicle thereof | |
| CN201021148Y (en) | Linear motor radial bogie | |
| WO2017049995A1 (en) | Direct-drive bogie having axle-mounted permanent magnet electric motor | |
| CN107719400B (en) | Permanent magnet direct-drive traction transmission device of railway vehicle | |
| CN101979266B (en) | Power bogie with independent wheels for 100 percent low-floor light rail vehicles | |
| CN110962873B (en) | High-power permanent magnet direct-drive bogie and rapid passenger locomotive | |
| CN103112457A (en) | Gearless-driving motor wheel pair unit with elastic supporting of motor | |
| CN101823492A (en) | Triaxial bogie for 160km/h wide-rail passenger electric express locomotive | |
| CN111547080B (en) | Independent wheel set and single-axle bogie directly driven by switched reluctance motor | |
| CN111469872A (en) | Permanent magnet motor and axle box integrated driving structure | |
| CN101683855B (en) | Novel locomotive traction transmission device | |
| Kolář | Design of a wheelset drive | |
| CN100372717C (en) | Tractive motor hanging method and bogie for three-axial locomotive | |
| CN113978505A (en) | Hinge pin type bogie for simultaneously driving urban rail vehicle by adopting single permanent magnet direct drive motor and double shafts | |
| CN2910704Y (en) | Composite suspension three-shaft locomotive bogie for traction motor | |
| WO2020034347A1 (en) | Small-wheelbase compact permanent magnet motor axle-hugging mounting type direct-drive bogie | |
| CN207374410U (en) | Rail vehicle permanent magnet direct-drive towing gear | |
| CN102490730A (en) | Device for driving bogie of electric locomotive | |
| CN201842102U (en) | Power bogie with independent wheels for 100% low-floor light rail vehicle | |
| CN207433531U (en) | Cartridge type rail vehicle permanent magnet direct-drive towing gear | |
| WO2023082671A1 (en) | Wheelset for gauge-changeable bogie for rail vehicle, and bogie | |
| CN203172627U (en) | Motor wheel set unit flexibly supported on motor and provided with gearless drive | |
| CN202200987U (en) | Power steering frame of longitudinally driven hybrid wheel pair with single motor and double shafts | |
| CN213008085U (en) | Permanent magnet direct drive motor and axle box integrated rubber wheel suspension hinge pin type bogie |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |