CN209290403U - A kind of traction electric machine directly drives the wheel of axle to component devices - Google Patents
A kind of traction electric machine directly drives the wheel of axle to component devices Download PDFInfo
- Publication number
- CN209290403U CN209290403U CN201821862281.1U CN201821862281U CN209290403U CN 209290403 U CN209290403 U CN 209290403U CN 201821862281 U CN201821862281 U CN 201821862281U CN 209290403 U CN209290403 U CN 209290403U
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- China
- Prior art keywords
- axle
- rotary transformer
- rotor
- stator
- motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
A kind of traction electric machine directly drives the wheel of axle to component devices, rotor is directly installed on axle, without the use of excessive axle sleeve, axle both ends are installed by conical bearing, assembling back axle both ends is floating end, and rotary transformer is equipped on the bearing seal of axle one end, and the rotor and axle of rotary transformer rotate synchronously, the stator of rotary transformer and motor stator are relatively fixed, and rotary transformer connects the traction invertor on vehicle by data cable.The rotor of the utility model motor is directly assemblied on axle, omit transition axle sleeve, mitigate weight, conical bearing is assembled at both ends, and making both ends is all floating end, energy quick release rotor and stator lateral displacement, eliminate the stress between rotor and stator, it is precisely controlled motor, reduces energy consumption to greatest extent, promotes service life safety allowance；Rotary transformer is housed, rotary transformer connects traction invertor, provides axle moving wave shape for traction invertor, to more accurately find the position of rotor, more accurately control motor, keep the revolution of motor and output torque more stable on axle.
Description
Technical field
The present invention relates to the wheels of rail vehicle truck to composition, more particularly, to a kind of torque for exporting traction electric machine
Or power is directly passed to the wheel of wheel pair or framework to composition.
Background technique
Currently, straight drive wheel both domestic and external is to composition, motor both ends are connect by plain bearing and transition axle sleeve with axle, only
Magnetic field is adjusted by adjusting the exciting current of stator, to realize the speed regulation to motor, there is detection motor rotor position not
Easily shake, the disadvantages of output power is unstable when enough accurate, electric motor starting.Meanwhile the bearing one end at motor both ends is positioning
End, the other end is floating end, in order to the transverse shifting of stator and rotor is discharged, to reduce between rotor and stator
Stress.But positioning end still will limit the transverse shifting of rotor and stator, stress still has, and energy consumption is larger, service life
Allowance is low.
Summary of the invention
Background technique there are aiming at the problem that, mesh of the invention is to provide the wheel pair that a kind of traction electric machine directly drives axle
Component devices, the lateral displacement of quick release stator and rotor eliminate stress, more accurately control motor, reduce energy consumption, are promoted
Service life safety allowance.
To achieve the above object, the present invention provides a kind of traction electric machine and directly drives the wheel of axle to component devices, special
Sign is: rotor is directly installed on axle, and conical bearing is installed at axle both ends, and assembly back axle both ends are to float
It holds, rotary transformer is installed on the bearing seal of axle one end, the rotor and axle of rotary transformer rotate synchronously, rotation
The stator of transformer and motor stator are relatively fixed, and rotary transformer connects the traction invertor on vehicle by data cable, from
And motor is more accurately controlled, keep the revolution of motor and output torque more stable.
The stator of the rotary transformer is assemblied in bearing seal and covers, and the rotor of rotary transformer passes through end ring
Locating slot location and installation is on end ring.
The rotor of the rotary transformer is equipped with convex key, is provided with keyway on outer retaining ring, the rotor of rotary transformer
The keyway of convex key and outer retaining ring passes through clearance fit.
Adjusting pad is installed between the motor stator and end cap, for adjusting the clearance of conical bearing, to guarantee to justify
The service life of cone bearing.
Compared to background technique, the good effect that the present invention generates is as follows:
(1) rotor of motor is directly assemblied on axle, omits transition axle sleeve, mitigates weight, cone axis is assembled at both ends
It holds, making both ends is all floating end, energy quick release rotor and stator lateral displacement, eliminates the stress between rotor and stator, essence
Quasi- control motor, reduces energy consumption to greatest extent, promotes service life safety allowance；
(2) rotary transformer is housed, rotary transformer connects traction invertor, provides axle for traction invertor on axle
Moving wave shape more accurately controls motor to more accurately find the position of rotor, makes revolution and the output of motor
Torque is more stable.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the enlarged drawing of I of the present invention.
Fig. 3 is the enlarged drawing of II of the present invention.
Specific embodiment
Referring to Fig.1, Fig. 2, Fig. 3, the specific embodiment of the invention are: 1 rigidity of rotor is assemblied on axle 2, with
Guarantee that the torque of motor output can be directly passed to axle.With the conical bearing 5 of 4 clamping motor of inner shield ring 3 and outer retaining ring, to protect
The conical bearing for demonstrate,proving motor can horizontally positioning motor stator 7 and carrying radially.Motor stator 7 is connected to end cap 6,
And conical bearing 5 is transferred load to by end cap 6, the clearance of conical bearing 5 can be adjusted, by adjusting pad 8 to guarantee to justify
The service life of cone bearing.It seals front cover 9 and rear sealing cover 10 and end cap 6 and provides the sealing space of operation for conical bearing.It is logical
Cross 11 sealed electric-motor chamber of O-ring.The running space of conical bearing is preferably sealed with diaphragm seal 12.The stator of rotary transformer
13-1 is assemblied on bearing seal cover 9, and the rotor 13-2 of rotary transformer passes through on convex key slot assembly thereon and outer retaining ring 4, outside
Retaining ring 4 is equipped with positioning spline, the convex key of the rotor of rotary transformer and outer retaining ring positioning spline and is cooperated by small―gap suture, thus
It realizes synchronous with axle turn, stop, by data cable 13-3, by waveform transfer to traction invertor, and then assist more accurately
Control revolution, the torque of motor.Traction invertor is assemblied in car body or other positions.Wheel 14 and 2 rigidity of axle are assembled, with
Guarantee that wheel 14 is rotated synchronously with axle 2.
Claims (4)
1. a kind of traction electric machine directly drives the wheel of axle to component devices, it is characterised in that: rotor is directly installed on vehicle
On axis, conical bearing is installed at axle both ends, and assembly back axle both ends are floating end, is installed on the bearing seal of axle one end
There is rotary transformer, the rotor and axle of rotary transformer rotate synchronously, and the stator of rotary transformer is opposite with motor stator solid
Fixed, rotary transformer connects the traction invertor on vehicle by data cable.
2. a kind of traction electric machine according to claim 1 directly drives the wheel of axle to component devices, it is characterised in that: institute
The stator for the rotary transformer stated is assemblied in bearing seal and covers, and the rotor of rotary transformer is positioned by end ring locating slot
It is installed on end ring.
3. a kind of traction electric machine according to claim 2 directly drives the wheel of axle to component devices, it is characterised in that: institute
The rotor for the rotary transformer stated is equipped with convex key, and keyway, the convex key of the rotor of rotary transformer and outer gear are provided on outer retaining ring
The keyway of circle passes through clearance fit.
4. a kind of traction electric machine according to claim 1 directly drives the wheel of axle to component devices, it is characterised in that: institute
Adjusting pad is installed between the motor stator and end cap stated, for adjusting the clearance of conical bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821862281.1U CN209290403U (en) | 2018-11-13 | 2018-11-13 | A kind of traction electric machine directly drives the wheel of axle to component devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821862281.1U CN209290403U (en) | 2018-11-13 | 2018-11-13 | A kind of traction electric machine directly drives the wheel of axle to component devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209290403U true CN209290403U (en) | 2019-08-23 |
Family
ID=67644273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821862281.1U Active CN209290403U (en) | 2018-11-13 | 2018-11-13 | A kind of traction electric machine directly drives the wheel of axle to component devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209290403U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435999A (en) * | 2018-11-13 | 2019-03-08 | 中车长春轨道客车股份有限公司 | A kind of traction electric machine directly drives the wheel of axle to component devices |
| CN112441079A (en) * | 2019-08-29 | 2021-03-05 | 比亚迪股份有限公司 | Rail train, vehicle-mounted controller and rail train speed measuring method and device |
-
2018
- 2018-11-13 CN CN201821862281.1U patent/CN209290403U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435999A (en) * | 2018-11-13 | 2019-03-08 | 中车长春轨道客车股份有限公司 | A kind of traction electric machine directly drives the wheel of axle to component devices |
| CN112441079A (en) * | 2019-08-29 | 2021-03-05 | 比亚迪股份有限公司 | Rail train, vehicle-mounted controller and rail train speed measuring method and device |
| CN112441079B (en) * | 2019-08-29 | 2022-05-13 | 比亚迪股份有限公司 | Rail train, vehicle-mounted controller and rail train speed measuring method and device |
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| GR01 | Patent grant |