JP2012115012A - Vehicular main motor - Google Patents

Vehicular main motor Download PDF

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Publication number
JP2012115012A
JP2012115012A JP2010260958A JP2010260958A JP2012115012A JP 2012115012 A JP2012115012 A JP 2012115012A JP 2010260958 A JP2010260958 A JP 2010260958A JP 2010260958 A JP2010260958 A JP 2010260958A JP 2012115012 A JP2012115012 A JP 2012115012A
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JP
Japan
Prior art keywords
oil
bearing
lubrication oil
main motor
fan
Prior art date
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Pending
Application number
JP2010260958A
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Japanese (ja)
Inventor
Akira Yasunaga
晃 安永
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Toyo Electric Manufacturing Ltd
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Toyo Electric Manufacturing Ltd
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Publication date
Application filed by Toyo Electric Manufacturing Ltd filed Critical Toyo Electric Manufacturing Ltd
Priority to JP2010260958A priority Critical patent/JP2012115012A/en
Publication of JP2012115012A publication Critical patent/JP2012115012A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

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  • Rolling Contact Bearings (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a structure for preventing lubrication oil from leaking from the gap between a stator and a rotor axis in a vehicular main motor that supplies the lubrication oil to a bearing, stores the lubrication oil therein, and includes the bearing with oil lubrication.SOLUTION: Lubrication oil located lower than a rotor axis 3 is scraped up by rotation of oil scrape-up circular disks 5 and 6 which are provided on a side and an opposite side of a fan, respectively, the fan being installed to a rotor 2 of a vehicular main motor, and the lubrication oil is supplied to a bearing. In the structure, the lubrication oil can be stored lower than the rotor axis 3, and less lubrication oil is always supplied compared to a state where the bearing is soaked into the lubrication oil, so that a vehicular induction motor with no oil leakage can be provided.

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構造に関するものである。   The present invention relates to a structure for lubricating a bearing by supplying lubricating oil into a bearing provided on a rotor shaft.

図２は一般的な鉄道車両用主電動機のグリース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，９はファン側グリース室，１０は反ファン側グリース室である。   FIG. 2 shows an example of a bearing structure for grease lubrication of a general railway vehicle main motor. 1 is a stator, 2 is a rotor, 3 is a rotor shaft, 4 is a fan, 9 is a fan-side grease chamber, 10 Is the anti-fan side grease chamber.

車両用主電動機の軸受の潤滑は、従来は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。
主電動機の運転時においては，回転子軸に設けた軸受に潤滑油を常に供給する必要があり、油の供給が不足し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。 Conventionally, grease is used for the lubrication of bearings for traction motors for vehicles. However, in order to save labor in maintenance work by extending the maintenance period, development of an oil lubricated bearing structure that can extend the maintenance period Research is ongoing.
When operating the main motor, it is necessary to always supply lubricating oil to the bearing provided on the rotor shaft. If the supply of oil is insufficient, the bearing may be poorly lubricated and cause damage to the bearing. .

特開２０１０−０１４１６４公報JP 2010-014164 A 特許第３６０４３０５号公報Japanese Patent No. 3604305 特許第３２８８２３７号公報Japanese Patent No. 3288237

上述の通り油潤滑の車両用主電動機においては常に軸受に潤滑油を供給する必要があり、かつ潤滑油が機内に貯蔵できる構造となる必要がある。但し、従来の一例を示す図２において、グリースの代わりに、軸受を潤滑油に浸した状態では、潤滑油が回転子軸と固定子隙間から漏れ出すことがほぼ確実であり、これに代わる構造が必要である。
本発明は適度な潤滑油を軸受装置に供給し、且つ油漏れを防止することが目的である。 As described above, in an oil-lubricated vehicle main motor, it is necessary to always supply lubricating oil to the bearing and to have a structure in which the lubricating oil can be stored in the machine. However, in FIG. 2 showing an example of the prior art, when the bearing is immersed in lubricating oil instead of grease, it is almost certain that the lubricating oil leaks from the rotor shaft and the stator gap, and an alternative structure. is required.
An object of the present invention is to supply an appropriate lubricating oil to the bearing device and 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軸受装置を有する、車両用主電動機において、ファン側と反ファン側のそれぞれの貯油室内に、該潤滑油を撹拌するための油掻揚げ円板を有することを特徴とする。   According to the first aspect of the present invention, in the vehicular main motor having the bearing device for supplying the lubricating oil into the bearing provided on the rotor shaft and lubricating the bearing, the oil storage on the fan side and the anti-fan side respectively. It is characterized by having an oil-raised disk for stirring the lubricating oil in the room.

すなわち、回転子に取付けしたファン側、反ファン側両側の油掻上げ円板の回転によって、回転子軸より低い位置にある潤滑油が掻上げられ、軸受に供給されることを特徴とする。   That is, the lubricating oil located at a position lower than the rotor shaft is scraped up and supplied to the bearing by the rotation of the oil-raised discs on both sides of the fan side and the non-fan side attached to the rotor.

本発明の構造は、油掻上げ円板によって油を掻上げるため、潤滑油を回転子軸より低い位置に貯蔵でき、グリースより多くの潤滑油を貯蔵できる。また、軸受を潤滑油で浸した状態より少ない潤滑油を常に供給するため油漏れを防止することができる。   Since the structure of the present invention scoops up the oil by the oil scooping disc, the lubricating oil can be stored at a position lower than the rotor shaft, and more lubricating oil can be stored than the grease. Further, since less lubricating oil is always supplied than when the bearing is immersed in the lubricating oil, oil leakage can be prevented.

本発明の実施例を示す説明図である。（実施例１）It is explanatory drawing which shows the Example of this invention. Example 1 従来の一例を示す説明図である。It is explanatory drawing which shows an example of the past.

本発明の実施例を図１等により以下に説明する。   An embodiment of the present invention will be described below with reference to 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，貯油室内の下部に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。 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 lifting discs 7 and 8 are oil storage chambers, and the portion indicated by diagonal lines in the lower portion of 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.

本発明の構造は、長期間非分解を目的とする車両用主電動機に利用することができる。
また、グリースより耐熱性の高い潤滑油の特徴を生かして、主電動機の温度上昇限度を高くすることができる。 The structure of the present invention can be used for a vehicular main motor intended for non-disassembly for a long period of time.
Further, the temperature rise limit of the main motor can be increased by making use of the characteristics of the lubricating oil having higher heat resistance than grease.

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
９ ファン側グリース室
１０ 反ファン側グリース室 DESCRIPTION OF SYMBOLS 1 Stator 2 Rotor 3 Rotor shaft 4 Fan 5 Fan side oil hoisting disk 6 Anti-fan side oil hoisting disk 7 Oil storage chamber 8 Oil storage chamber 9 Fan side grease chamber 10 Anti fan side grease chamber

Claims (1)

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軸受装置を有する、車両用主電動機において、ファン側と反ファン側のそれぞれの貯油室内に、該潤滑油を撹拌するための油掻揚げ円板を有することを特徴とする車両用主電動機。
In a vehicular main motor having a bearing device that lubricates a bearing by supplying lubricating oil in a bearing provided on a rotor shaft, the lubricating oil is agitated in each oil storage chamber on the fan side and the non-fan side. A vehicular main motor characterized by having an oil-raised disk for the purpose.
JP2010260958A 2010-11-24 2010-11-24 Vehicular main motor Pending JP2012115012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010260958A JP2012115012A (en) 2010-11-24 2010-11-24 Vehicular main motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010260958A JP2012115012A (en) 2010-11-24 2010-11-24 Vehicular main motor

Publications (1)

Publication Number Publication Date
JP2012115012A true JP2012115012A (en) 2012-06-14

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ID=46498601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010260958A Pending JP2012115012A (en) 2010-11-24 2010-11-24 Vehicular main motor

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JP (1) JP2012115012A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220090745A (en) * 2020-12-23 2022-06-30 주식회사 맥시스 Motor with improved lubrication of bearing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220090745A (en) * 2020-12-23 2022-06-30 주식회사 맥시스 Motor with improved lubrication of bearing
KR102591684B1 (en) * 2020-12-23 2023-10-19 주식회사 맥시스 Motor with improved lubrication of bearing

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