CN101722958B - Independent hub traction device - Google Patents
Independent hub traction device Download PDFInfo
- Publication number
- CN101722958B CN101722958B CN2009102662833A CN200910266283A CN101722958B CN 101722958 B CN101722958 B CN 101722958B CN 2009102662833 A CN2009102662833 A CN 2009102662833A CN 200910266283 A CN200910266283 A CN 200910266283A CN 101722958 B CN101722958 B CN 101722958B
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- traction device
- cooling pipe
- hollow shaft
- cooling
- motor
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Abstract
The invention relates to an independent hub traction device which is mainly applied to an urban low floor rail vehicle. The independent hub traction device comprises a hollow shaft and an outer rotor permanent magnet brushless direct current motor, wherein the hollow shaft is fixed to a vehicle framework; the outer rotor permanent magnet brushless direct current motor is arranged on the hollow shaft and provided with a stator iron core and an outer rotor which is also used as a shell; the stator iron core is fixed to the hollow shaft; a cooling pipe for loading a cooling medium is arranged in the stator iron core; a cooling medium outlet of the cooling pipe is connected with an inlet of a heat radiator which is installed on the vehicle framework, and an outlet of the heat radiator is connected with an inlet of a water pump which is installed on the vehicle framework; and the outlet of the water pump is connected with the inlet of the cooling pipe. The independent hub traction device effectively improves the cooling effect on a motor by a cooling device added to the traction motor on the premise of ensuring higher mechanical efficiency and greatly improves the long-term running reliability of the motor under the condition of complicated environment.
Description
Technical field
The present invention relates to a kind of independent hub traction device, be mainly used in urban low-floor rail vehicle especially.
Background technology
The passenger gets on or off the bus for the ease of the city, reduces turn radius, reduces the cost of circuit and platform, and city railway vehicle adopts low floor vehicle usually.Because the height of floor from rail top of low-floor light rail vehicle has only about 300～400mm, the structure design space of bogie truck is very narrow and small, in order to realize 100% low floor of vehicle, and guarantee the safe operation of vehicle, now generally adopt the traction electric machine of wheel hub motor as independently rotating wheel.The volume of this wheel hub electric motor is little, the power density height, because the electromagnetic load height, fanning effect is poor, and electric machine temperature rise is higher, except adopting the higher class of insulation, must take the actv. cooling provision to it.
Prior art adopts the method for self-ventilation or forced ventilation that wheel hub motor is cooled off mostly, when adopting forced ventilation, forced ventilation equipment need be housed in railway carriage, but because the space is narrow and small, a lot of difficulties can occur in the mounting, commissioning and maintenance process.Though adopt self-ventilated machine can avoid laying ventilator tube and offer breather port in car, ground-surface dust, sewage, moisture etc. are brought into motor internal easily.And the effect of this ventilation cooling is limited, can't guarantee the long-time reliable operation of motor.
Summary of the invention
The technical problem to be solved in the present invention is: the heat dispersion that the wheel hub motor that is adopted at present low floor city railway vehicle exists is bad, and installation cooling mechanism ten minutes situation of difficult, spy of the present invention provides a kind of independent hub traction device with good cooling performance to solve this problem, under the prerequisite that guarantees the higher mechanical efficiency of motor, improved the reliability of motor long-time running under complicated environmental condition greatly.
The technical solution adopted in the present invention is: a kind of independent hub traction device, be mainly used in the urban low-floor light rail vehicle, it includes hollow shaft that is fixed in car structure and the external rotor permanent magnet brshless DC motor that is arranged on the hollow shaft, the external rotor permanent magnet brshless DC motor has stator core, stator winding, power transmission line that links to each other with stator winding and the double outer rotor of doing casing, hollow shaft is fixed in stator core, the yoke portion of stator core has some through holes, there is the cooling pipe of loading cooling medium to be placed through through hole formation coil pipe back and forth, in the gap of cooling pipe and stator core through hole, be filled with the heat-conducting glue compound, two leading-out ends of cooling pipe are respectively advancing of cooling media, outlet, the outlet of cooling pipe links to each other with the import of the radiator that is installed on car structure, the outlet of radiator then is connected and installed in the import of the water pump of car structure, and exit of pump links to each other with the import of cooling pipe again.
Be provided with some radiating ribs at the described double outer wall of doing the outer rotor of casing.Rotor high-speed rotatablely moves down outside, and radiating ribs and air streams contact can dissipate the most of heat on the outer rotor.
Be provided with the heat conduction fan that is used for balanced motor cavity heat at a described double end of doing the outer rotor inner chamber of casing.The rotation of heat conduction fan makes motor cavity form windstream, and the heat that helps motor cavity distributes and tends to balance.
What described radiator adopted is aluminum plate fin type radiator.
The material of described cooling pipe is a corrosion-resistant steel, and cooling media adopts the aqueous system of water or ethylene glycol.The cooling media import and export of cooling pipe is via drawing in the hollow shaft, the described power transmission line that links to each other with stator winding by the conduit cylinder-packing also via drawing in the hollow shaft.
The invention has the beneficial effects as follows: be the low floor city railway vehicle, especially 100% low floor city railway vehicle provides a kind of independent hub traction device, this independent hub traction device adopts the external rotor permanent magnet brshless DC motor as traction electric machine direct drive wheel, under the prerequisite that has guaranteed higher mechanical efficiency, for traction electric machine has added a cover cooling mechanism, improved cooling performance significantly than prior art, improved the reliability of motor long-time running under complicated environmental condition greatly motor.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation (semi-sictional view) of outer rotor permanent-magnet brushless DC electric machine among the present invention.
Among the figure: 1. hollow shaft 2. external rotor permanent magnet brshless DC motor 2-1. stator core 2-2. stator winding 2-3. power transmission line 2-4. outer rotors 3. cooling pipes 4. radiatores 5. water pumps 6. heat conduction fans 7. elastic wheels
The specific embodiment
A kind of independent hub traction device, be mainly used in the urban low-floor light rail vehicle, it includes hollow shaft 1 that is fixed in car structure and the external rotor permanent magnet brshless DC motor 2 that is arranged on the hollow shaft 1, the external rotor permanent magnet brshless DC motor has stator core 2-1, stator winding 2-2, power transmission line 2-3 that links to each other with stator winding 2-2 and the double outer rotor 2-4 that does casing, stator core 2-1 is fixed in hollow shaft 1, the yoke portion of stator core 2-1 has some through holes, there is the cooling pipe 3 of loading cooling medium to be placed through through hole formation coil pipe back and forth, in the gap of cooling pipe 3 and stator core 2-1 through hole, be filled with the heat-conducting glue compound, two leading-out ends of cooling pipe 3 are respectively advancing of cooling media, outlet, the outlet of cooling pipe 3 links to each other with the import of the radiator 4 that is installed on car structure, the outlet of radiator 4 then is connected and installed in the import of the water pump 5 of car structure, and water pump 5 outlets link to each other with the import of cooling pipe 3 again.
Be provided with some radiating ribs at the double outer wall of being the outer rotor 2-4 of casing.End at outer rotor 2-4 inner chamber is provided with the heat conduction fan 6 that is used for balanced motor cavity heat.
What radiator 4 adopted is aluminum plate fin type radiator.
The material of cooling pipe is a corrosion-resistant steel, and cooling media adopts the aqueous system of water or ethylene glycol.The cooling media import and export of cooling pipe 3 is via drawing in the hollow shaft, the power transmission line 2-3 that links to each other with stator winding 2-2 by the conduit cylinder-packing also via drawing in the hollow shaft.
Independent hub traction device of the present invention adopts the external rotor permanent magnet brshless DC motor as power, motor adopts full-enclosed structure, the casing of motor is as the component part of outer rotor, on the inwall of casing, there is the high energy product permanent-magnet material to piece the magnetic pole that forms together, outside casing employing heat conductivility preferred metal is made and is directly exposed to.
The stator core of motor is laminated by iron-core lamination and constitutes, there is corresponding circular hole in the yoke portion of iron-core lamination, iron-core lamination laminates in the whole iron core in back and forms through hole, at first the straight-tube portion with stainless steel cooling pipe inserts in the through hole, fill the heat-conducting glue compound in the gap of cooling pipe and through hole, the two ends of each straight-tube portion of cooling pipe make whole cooling pipe form coil pipe by being welded to connect.
Claims (7)
1. independent hub traction device, be mainly used in urban low-floor rail vehicle, it includes hollow shaft (1) that is fixed in car structure and the external rotor permanent magnet brshless DC motor (2) that is arranged on the hollow shaft (1), the external rotor permanent magnet brshless DC motor has stator core (2-1), stator winding (2-2), power transmission line (2-3) that links to each other with stator winding (2-2) and the double outer rotor (2-4) of doing casing, it is characterized in that: hollow shaft (1) is fixed in stator core (2-1), the yoke portion of stator core (2-1) has some through holes, there is the cooling pipe (3) of loading cooling medium to be placed through through hole formation coil pipe back and forth, in the gap of cooling pipe (3) and stator core (2-1) through hole, be filled with the heat-conducting glue compound, two leading-out ends of cooling pipe (3) are respectively advancing of cooling media, outlet, the outlet of cooling pipe (3) links to each other with the import of the radiator that is installed on car structure (4), the outlet of radiator (4) then is connected and installed in the import of the water pump (5) of car structure, and water pump (5) outlet links to each other with the import of cooling pipe (3) again.
2. independent hub traction device according to claim 1 is characterized in that: be provided with some radiating ribs at the described double outer wall of doing the outer rotor (2-4) of casing.
3. independent hub traction device according to claim 1 is characterized in that: be provided with the heat conduction fan (6) that is used for balanced motor cavity heat at a described double end of doing outer rotor (2-4) inner chamber of casing.
4. independent hub traction device according to claim 1 is characterized in that: described radiator (4) is an aluminum plate fin type radiator.
5. independent hub traction device according to claim 1 is characterized in that: the material of described cooling pipe (3) is a corrosion-resistant steel.
6. independent hub traction device according to claim 1 is characterized in that: the cooling media import and export of described cooling pipe (3) is via drawing in the hollow shaft.
7. independent hub traction device according to claim 1 is characterized in that: the described power transmission line (2-3) that links to each other with stator winding (2-2) by the conduit cylinder-packing via drawing in the hollow shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102662833A CN101722958B (en) | 2009-12-25 | 2009-12-25 | Independent hub traction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102662833A CN101722958B (en) | 2009-12-25 | 2009-12-25 | Independent hub traction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101722958A CN101722958A (en) | 2010-06-09 |
| CN101722958B true CN101722958B (en) | 2011-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102662833A Expired - Fee Related CN101722958B (en) | 2009-12-25 | 2009-12-25 | Independent hub traction device |
Country Status (1)
| Country | Link |
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| CN (1) | CN101722958B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102201719B (en) * | 2010-12-22 | 2016-06-01 | 胡景威 | The production method of brshless DC motor is turned outside a kind of model plane |
| CN102280954A (en) * | 2011-01-24 | 2011-12-14 | 王建排 | Motor heat radiation apparatus |
| CN103401391A (en) * | 2013-08-08 | 2013-11-20 | 陕西特谷智慧科技有限公司 | Electric vehicle drive device |
| CN103835196B (en) * | 2014-02-26 | 2015-12-23 | 中铁上海工程局集团有限公司 | A kind of built-in driving mechanism about track-laying machine traveling girder construction and method |
| CN108045383A (en) * | 2017-11-16 | 2018-05-18 | 中车四方车辆有限公司 | A kind of running gear and the vehicle with the running gear |
| CN108082197B (en) * | 2017-12-19 | 2019-07-09 | 中车株洲电力机车有限公司 | A kind of traction electric machine arrangement and suspended structure |
| CN108128321B (en) * | 2017-12-21 | 2019-11-15 | 大连交通大学 | Hub-type independent wheel bogie |
| CN108318818B (en) * | 2018-05-14 | 2023-12-19 | 贵州电网有限责任公司 | Generator stator core fault testing device and testing method thereof |
| CN111547080B (en) * | 2020-05-15 | 2021-11-16 | 中车株洲电力机车有限公司 | Independent wheel set and single-axle bogie directly driven by switched reluctance motor |
| CN112208277A (en) * | 2020-10-23 | 2021-01-12 | 中车四方车辆有限公司 | Dual-purpose vehicle for road and railway |
| CN112208276A (en) * | 2020-10-23 | 2021-01-12 | 中车四方车辆有限公司 | Dual-purpose vehicle for road and railway |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1065123A2 (en) * | 1999-06-29 | 2001-01-03 | Mitsubishi Heavy Industries, Ltd. | Independent wheel driving component, independent wheel steering bogie and cooling structure |
| CN101327731A (en) * | 2008-07-01 | 2008-12-24 | 西南大学 | Water-cooling electric driven hub |
| WO2009072372A1 (en) * | 2007-12-06 | 2009-06-11 | Toyota Jidosha Kabushiki Kaisha | Vehicle drive device |
| CN201594779U (en) * | 2009-12-25 | 2010-09-29 | 新誉集团有限公司 | Independent wheel hub traction apparatus |
-
2009
- 2009-12-25 CN CN2009102662833A patent/CN101722958B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1065123A2 (en) * | 1999-06-29 | 2001-01-03 | Mitsubishi Heavy Industries, Ltd. | Independent wheel driving component, independent wheel steering bogie and cooling structure |
| WO2009072372A1 (en) * | 2007-12-06 | 2009-06-11 | Toyota Jidosha Kabushiki Kaisha | Vehicle drive device |
| CN101327731A (en) * | 2008-07-01 | 2008-12-24 | 西南大学 | Water-cooling electric driven hub |
| CN201594779U (en) * | 2009-12-25 | 2010-09-29 | 新誉集团有限公司 | Independent wheel hub traction apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101722958A (en) | 2010-06-09 |
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Effective date of registration: 20160921 Address after: 213164 Jiangsu province Changzhou Fenglin Wujin high tech Industrial Development Zone, Road No. 199 Patentee after: Xin Yu track traffic Science and Technology Ltd. Address before: 213164 Jiangsu city of Changzhou province were Wujin high tech Industrial Development Zone, Road No. 68 Patentee before: New United Group Co., Ltd. |
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Granted publication date: 20110720 Termination date: 20171225 |
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