JP5063512B2 - Bearing device for vehicle main motor - Google Patents
Bearing device for vehicle main motor Download PDFInfo
- Publication number
- JP5063512B2 JP5063512B2 JP2008173154A JP2008173154A JP5063512B2 JP 5063512 B2 JP5063512 B2 JP 5063512B2 JP 2008173154 A JP2008173154 A JP 2008173154A JP 2008173154 A JP2008173154 A JP 2008173154A JP 5063512 B2 JP5063512 B2 JP 5063512B2
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- Prior art keywords
- oil
- fan
- bearing
- main motor
- bearing device
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- Rolling Contact Bearings (AREA)
Description
本発明は，回転子軸に設けた軸受内に潤滑油を供給して軸受を潤滑する車両用主電動機の軸受装置において、ファン側と反ファン側のそれぞれの給油室内に設けた潤滑油を攪拌するための油掻揚げ円板に関するものである。 The present invention relates to a vehicular main motor bearing device that supplies lubricating oil into a bearing provided on a rotor shaft to lubricate the bearing, and stirs the lubricating oil provided in each of the oil supply chambers on the fan side and the non-fan side. It is related with the oil frying disk for doing.
車両用主電動機の軸受の潤滑は従来よりグリースが用いられているが、分解保守期間の延長による保守作業の省力化を図る目的から、分解保守期間の延長が図れる油潤滑の軸受構造の開発研究が進められている。
図２には油潤滑する軸受構造の一例であり，１は固定子，２は回転子，３は回転子軸，４はファン，５はファン側油掻揚げ円板，６は反ファン側油掻揚げ円板，７及び８は貯油室であり，貯油室下部の斜線で示す部分は潤滑油である。
軸受への油の供給は，貯油室に溜められた潤滑油がそれぞれの軸受の近傍に設けられた油掻揚げ円板の回転により上部へ掻揚げられ，この掻揚げられた潤滑油が軸受箱や油掻揚げ円板の側面を伝って軸受に進入することにより潤滑される。
Conventionally, grease has been used for the lubrication of bearings for traction motors in vehicles. However, in order to save labor in maintenance work by extending the disassembly maintenance period, research and development of a bearing structure for oil lubrication that can extend the disassembly maintenance period. Is underway.
FIG. 2 shows an example of a bearing structure for oil lubrication, where 1 is a stator, 2 is a rotor, 3 is a rotor shaft, 4 is a fan, 5 is a fan-side oil-raised disc, and 6 is an anti-fan-side oil. The scraping discs 7 and 8 are oil storage chambers, and the hatched portion below the oil storage chamber is lubricating oil.
The supply of oil to the bearings is carried out by the lubricating oil stored in the oil storage chambers being lifted up by the rotation of an oil lifting disk provided in the vicinity of each bearing. Or it is lubricated by entering the bearing along the side of the oil-raised disk.
主電動機の運転時における特に高速回転時には，主電動機の回転子軸に取付けられたファンの回転により、機内側の軸受装置近傍の圧力が低下することになる。また，油掻揚げ円板の回転により攪拌された潤滑油の一部は霧状となり，貯油室内に滞留する。
このため，油掻揚げ円板の回転により攪拌され霧状になった貯油室内の潤滑油がラビリンスを通って吸い出され油漏れが発生することになり，機内が汚染され，油が多量に漏れた場合は軸受の潤滑不良を起こし，軸受破損の原因となることがある。
For this reason, the oil in the oil storage chamber, which is agitated and atomized by the rotation of the oil lifting disc, is sucked out through the labyrinth, resulting in oil leakage, which contaminates the machine and causes a large amount of oil leakage. If this happens, bearing lubrication may be poor and the bearing may be damaged.
解決しようとする問題点は、特に高速回転時における貯油室内の霧状となる潤滑油の量を低減することで，主電動機の運転中に機内側の圧力が低下傾向になるファン側の軸受装置の油漏れを防止することが目的である。 The problem to be solved is a fan-side bearing device in which the pressure inside the machine tends to decrease during operation of the main motor by reducing the amount of mist in the oil storage chamber, especially during high-speed rotation. The purpose is to prevent oil leakage.
請求項１の発明によれば、回転子軸に設けた軸受内に潤滑油を供給して軸受を潤滑する車両用主電動機の軸受装置において、該回転子軸に取付けしたファン側油掻揚げ円板の外径が反ファン側油掻揚げ円板の外径よりも小さいことを特徴とする。 According to the first aspect of the present invention, in a bearing device for a main motor for a vehicle that supplies lubricating oil into a bearing provided on the rotor shaft to lubricate the bearing, a fan-side oil-raised circle attached to the rotor shaft. The outer diameter of the plate is smaller than the outer diameter of the anti-fan side oil rake disc.
本発明の軸受装置の構造は、ファン側の油掻揚げ円板の外径を反ファン側の油掻揚げ円板の外径よりも小さくすることで，回転により攪拌され霧状となる潤滑油の量を抑えることができ，油漏れを防止することができる。 The structure of the bearing device of the present invention is such that the outer diameter of the fan-side oil-raised disk is smaller than the outer diameter of the anti-fan-side oil-raised disk, so that the lubricating oil is stirred and atomized by rotation. The amount of oil can be reduced and oil leakage can be prevented.
図１に示す本発明の実施例による。 According to the embodiment of the present invention shown in FIG.
図１は、本発明の実施例を示す断面図であって，１は固定子，２は回転子，３は回転子軸，４はファン，５はファン側油掻揚げ円板，６は反ファン側油掻揚げ円板，７及び８は貯油室であり，貯油室７及び８内の下部に斜線で示す部分は潤滑油である。図１の如く，ファン側油掻揚げ円板５の外径は，反ファン側油掻揚げ円板６の外径よりも小さく，潤滑油に浸かる範囲が小さくなっている。
FIG. 1 is a cross-sectional view showing an embodiment of the present invention, in which 1 is a stator, 2 is a rotor, 3 is a rotor shaft, 4 is a fan, 5 is a fan-side oil-raised disk, and 6 is a reverse side. The fan-side oil scooping discs 7 and 8 are oil storage chambers, and the portions indicated by hatching in the lower portions of the oil storage chambers 7 and 8 are lubricating oil. As shown in FIG. 1, the outer diameter of the fan-side oil hoisting disk 5 is smaller than the outer diameter of the anti-fan-side oil hoisting
図２は、従来の一例で示す断面図であって、符号は図１と同一である。図２の如く，ファン側油掻揚げ円板５の外径は，反ファン側油掻揚げ円板６の外径と同一であり，潤滑油に浸かる範囲も同一となっている。
FIG. 2 is a sectional view showing an example of the prior art, and the reference numerals are the same as those in FIG. As shown in FIG. 2, the outer diameter of the fan-side oil lifting disk 5 is the same as the outer diameter of the anti-fan-side
１ 固定子
２ 回転子
３ 回転子軸
４ ファン
５ ファン側油掻揚げ円板
６ 反ファン側油掻揚げ円板
７ 貯油室
８ 貯油室
DESCRIPTION OF SYMBOLS 1 Stator 2 Rotor 3 Rotor shaft 4 Fan 5 Fan side oil hoisting
Claims (1)
In a bearing device for a main motor for a vehicle that supplies lubricating oil into a bearing provided on a rotor shaft and lubricates the bearing, the vehicle has a fan that is attached to the drive side of the rotor shaft and cools the interior of the previous motor, The outer diameter of the fan-side oil lifting disk (5) attached to the drive side of the rotor shaft is larger than the outer diameter of the anti-fan-side oil lifting disk (6) provided at the other end of the previous rotating shaft. A bearing device for a main motor for a vehicle, characterized in that it is also small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008173154A JP5063512B2 (en) | 2008-07-02 | 2008-07-02 | Bearing device for vehicle main motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008173154A JP5063512B2 (en) | 2008-07-02 | 2008-07-02 | Bearing device for vehicle main motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2010014164A JP2010014164A (en) | 2010-01-21 |
| JP5063512B2 true JP5063512B2 (en) | 2012-10-31 |
Family
ID=41700452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008173154A Expired - Fee Related JP5063512B2 (en) | 2008-07-02 | 2008-07-02 | Bearing device for vehicle main motor |
Country Status (1)
| Country | Link |
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| JP (1) | JP5063512B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908898B (en) * | 2009-06-03 | 2013-05-08 | 卡西欧计算机株式会社 | Radio wave receiver |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150055444A (en) * | 2013-11-13 | 2015-05-21 | 삼성전기주식회사 | Common mode filter |
| DE102019111774A1 (en) * | 2019-03-25 | 2020-10-01 | Liebherr-Components Biberach Gmbh | Drive device for a trench wall cutter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6275195A (en) * | 1985-09-28 | 1987-04-07 | Toshiba Corp | Bearing device of rotary electric machine |
| JP3604305B2 (en) * | 1999-09-24 | 2004-12-22 | 東芝トランスポートエンジニアリング株式会社 | Bearing lubrication system for motors for vehicles |
-
2008
- 2008-07-02 JP JP2008173154A patent/JP5063512B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908898B (en) * | 2009-06-03 | 2013-05-08 | 卡西欧计算机株式会社 | Radio wave receiver |
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| Publication number | Publication date |
|---|---|
| JP2010014164A (en) | 2010-01-21 |
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