JP2010161851A - Bearing device in main motor for vehicle - Google Patents

Bearing device in main motor for vehicle Download PDF

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Publication number
JP2010161851A
JP2010161851A JP2009001356A JP2009001356A JP2010161851A JP 2010161851 A JP2010161851 A JP 2010161851A JP 2009001356 A JP2009001356 A JP 2009001356A JP 2009001356 A JP2009001356 A JP 2009001356A JP 2010161851 A JP2010161851 A JP 2010161851A
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Prior art keywords
oil
main motor
chamber
fan side
bearing device
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JP2009001356A
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Japanese (ja)
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Tadashi Okutsu
正 奥津
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Toyo Electric Manufacturing Ltd
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Toyo Electric Manufacturing Ltd
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Priority to JP2009001356A priority Critical patent/JP2010161851A/en
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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

<P>PROBLEM TO BE SOLVED: To prevent the oil leakage of a bearing device on the fan side in which the pressure within a machine tends to drop during operation of a main motor, and to circulate lubricant. <P>SOLUTION: The lubricant becomes foggy by the rotation of an oil paddling-up disk on the anti-fan side and fills in a splash chamber, and a part of the lubricant passes through the oil reservoir of an auxiliary nose from an oil bank provided in the upper part of the droplet chamber on the anti-fan side, and flows into a bearing on the fan side as lubricant. The lubricant, which has overflowed from the oil bank on the fan side, is sent to a lower oil reservoir and flows again into the splash chamber on the anti-fan side, whereby the lubricant is circulated. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は，車両用主電動機の軸受装置において、潤滑油を攪拌するための油掻揚げ円板と貯油室に関するものである。   The present invention relates to an oil-raised disk and an oil storage chamber for agitating lubricating oil in a bearing device for a vehicle main motor.

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はファン側の油掻揚げ円板，６は反ファン側の油掻揚げ円板，７及び８は飛沫室であり，飛沫室下部の斜線で示す部分は潤滑油である。
軸受への潤滑油の供給は，飛沫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 main motors for vehicles, but in order to save labor in maintenance work by extending the period of disassembly maintenance, research and development of a bearing structure for oil lubrication that can extend the period of disassembly maintenance Is underway.
FIG. 2 shows an example of a bearing structure for oil lubrication, in which 1 is a stator, 2 is a rotor, 3 is a rotor shaft, 4 is a fan, 5 is an oil-raised disk on the fan side, and 6 is an anti-fan side. No. 7 and 8 are splash chambers, and the hatched portion at the bottom of the splash chamber is lubricating oil.
Lubricating oil is supplied to the bearings in such a way that the lubricating oil stored in the splash chambers is swept upward by the rotation of an oil lifting disc provided in the vicinity of each bearing. It is lubricated by entering the bearing along the side of the box or 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，飛沫室内に滞留する。
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飛沫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があり，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。 During operation of the main motor, particularly during high-speed rotation, the pressure in the vicinity of the bearing device inside the machine decreases due to the rotation of the fan attached to the rotor shaft of the main motor. In addition, a part of the lubricating oil stirred by the rotation of the oil-raised disk becomes mist and stays in the splash chamber.
For this reason, lubricating oil in the spray chamber stirred and atomized by the rotation of the oil-raised disk may be sucked out through the labyrinth, resulting in oil leakage. If this happens, bearing lubrication may be poor and the bearing may be damaged.

特開２００７−２２８６８２公報JP 2007-228682 A

解決しようとする問題点は、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及び、潤滑油を循環させることが目的である。   The problem to be solved is to prevent oil leakage of the fan-side bearing device in which the pressure inside the machine tends to decrease during operation of the main motor and to circulate the lubricating oil.

請求項１の発明によれば、 複数の貯油室を有し、回転子軸とともに回転する油掻き揚げ円板と飛沫室を設けた車両用主電動機の軸受装置において、反ファン側に設けられた油掻揚げ円板と、補助ノーズ部の間と車両用主電動機の下部との合計２箇所に設けられた貯油室を有すること特徴とする。   According to the first aspect of the present invention, in the bearing device for a vehicular main motor having a plurality of oil storage chambers and an oil lifting disc rotating with the rotor shaft and a splash chamber, the bearing device is provided on the anti-fan side. It has oil storage chambers provided in a total of two locations, an oil-raised disk, a space between the auxiliary nose portion, and a lower portion of the vehicle main motor.

請求項２の発明によれば、請求項１記載の発明において、前記貯油室は、ファン側の飛沫室と反ファン側の飛沫室とが接続されていることを特徴とする。   According to the invention of claim 2, in the invention of claim 1, the oil storage chamber is characterized in that a splash chamber on the fan side and a splash chamber on the anti-fan side are connected.

請求項３の発明によれば、請求項１記載の発明において、前記反ファン側の飛沫室の上部には油溜りが設けられていることを特徴とする。   According to the invention of claim 3, in the invention of claim 1, an oil sump is provided in an upper part of the splash chamber on the side opposite to the fan.

請求項４の発明によれば、請求項１記載の発明において、前記ファン側の飛沫室の上部には前記補助ノーズ部の貯油室を通り流入する潤滑油を軸受内に導くためのガイドが設けられ、下部には油溜りが設けられていることを特徴とする。   According to a fourth aspect of the present invention, in the first aspect of the present invention, a guide for guiding the lubricating oil flowing through the oil storage chamber of the auxiliary nose portion into the bearing is provided in the upper portion of the splash chamber on the fan side. An oil sump is provided in the lower part.

請求項５の発明によれば、請求項１記載の発明において、前記ファン側の飛沫室の下部に設けられた油溜りは、軸受内に必要充分な潤滑油が溜まるような位置・容積になっており、前期補助ノーズ部の貯油室を通り流入する潤滑油が多くなると、油溜りをオーバーフローして下部の貯油室に流入するようになっていることを特徴とする。   According to a fifth aspect of the present invention, in the first aspect of the present invention, the oil sump provided in the lower part of the splash chamber on the fan side has a position and volume such that a necessary and sufficient amount of lubricating oil is accumulated in the bearing. When the amount of lubricating oil flowing through the oil storage chamber of the auxiliary nose portion increases, the oil reservoir overflows and flows into the lower oil storage chamber.

請求項６の発明によれば、請求項１記載の発明において、下部の貯油室の下面には廃油口が設けられ、前記補助ノーズ部の貯油室の上面には給油口が設けられていることを特徴とする。   According to the invention of claim 6, in the invention of claim 1, a waste oil port is provided on the lower surface of the lower oil storage chamber, and an oil supply port is provided on the upper surface of the oil storage chamber of the auxiliary nose portion. It is characterized by.

すなわち、本発明は、油掻揚げ円板を反ファン側のみに設けたことと、補助ノーズ部と下部の２箇所に貯油室を設けたことを特徴とする。   That is, the present invention is characterized in that an oil-raised disk is provided only on the side opposite to the fan, and oil storage chambers are provided in two locations, the auxiliary nose portion and the lower portion.

本発明の軸受装置の構造は、主電動機の運転中、反ファン側の油掻揚げ円板により霧状になり飛沫室内に充満した潤滑油の一部が、反ファン側の油溜りから補助ノーズ部の貯油室を通り、ファン側の軸受の中に潤滑油として流入する。ファン側の油溜りから溢れ出た潤滑油は下部の貯油室に送られ、再度、反ファン側の飛沫室に流入することで、潤滑油が循環されることができる。   The structure of the bearing device of the present invention is such that, during operation of the main motor, a part of the lubricating oil that is atomized by the oil-raised disk on the anti-fan side and filled in the splash chamber is transferred from the oil reservoir on the anti-fan side to the auxiliary nose. Passes through the oil storage chamber and flows into the fan-side bearing as lubricating oil. The lubricating oil overflowing from the oil reservoir on the fan side is sent to the lower oil storage chamber and flows again into the splash chamber on the anti-fan side, so that the lubricating oil can be circulated.

本発明の実施例を示す説明図である。It is explanatory drawing which shows the Example of this invention. 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. 貯油室の取付位置を示す説明図であるIt is explanatory drawing which shows the attachment position of an oil storage chamber. 貯油室の取付位置を示す説明図であるIt is explanatory drawing which shows the attachment position of an oil storage chamber.

以下、本発明の実施の形態を図を参照して説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

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，６は反ファン側の油掻揚げ円板，７及び８は飛沫室，９は補助ノーズ部の貯油室，１０は下部の貯油室，１１はファン側の油溜り，１２反ファン側の油溜りであり，飛沫室の下部及び貯油室内に斜線で示す部分は潤滑油である。   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, 6 is an oil fanning disk on the non-fan side, 7 8 and 8 are splash chambers, 9 is an oil storage chamber in the auxiliary nose section, 10 is a lower oil storage chamber, 11 is an oil reservoir on the fan side, and 12 is an oil reservoir on the anti-fan side. The part shown is lubricating oil.

図２は、従来の一例で示す断面図であって、５はファン側の油掻揚げ円板であり、その他の符号は図１と同一である。図の如く，ファン側及び反ファン側それぞれに油掻揚げ円板が設けられている。   FIG. 2 is a cross-sectional view showing an example of the prior art. Reference numeral 5 denotes a fan-side oil-raised disk, and other reference numerals are the same as those in FIG. As shown in the figure, oil frying discs are provided on each of the fan side and the non-fan side.

図１，３，４において、貯油室は補助ノーズの間と主電動機の下部の合計２箇所に設けられている。   In FIGS. 1, 3, and 4, oil storage chambers are provided at a total of two locations between the auxiliary nose and the lower portion of the main motor.

図１，３，４において、それぞれの貯油室はファン側の飛沫室と反ファン側の飛沫室と接続されている。   1, 3, and 4, each oil storage chamber is connected to a fan-side splash chamber and an anti-fan-side splash chamber.

図１において、反ファン側の飛沫室の上部には油溜りが設けられている。   In FIG. 1, an oil sump is provided in the upper part of the splash chamber on the anti-fan side.

１において、ファン側の飛沫室の上部には補助ノーズ部の貯油室を通り流入する潤滑油を軸受内に導くためのガイドが設けられ、下部には油溜りが設けられている。   In FIG. 1, a guide for guiding lubricating oil flowing through the oil storage chamber of the auxiliary nose portion into the bearing is provided in the upper portion of the splash chamber on the fan side, and an oil reservoir is provided in the lower portion.

図１において、ファン側の飛沫室の下部に設けられた油溜りは、軸受内に必要充分な潤滑油が溜まるような位置・容積になっており、補助ノーズ部の貯油室を通り流入する潤滑油が多くなると、油溜りをオーバーフローして下部の貯油室に流入するようになっている。   In FIG. 1, the oil reservoir provided in the lower part of the splash chamber on the fan side has a position and volume so that necessary and sufficient lubricating oil is accumulated in the bearing, and lubrication flows through the oil storage chamber of the auxiliary nose portion. When the amount of oil increases, it overflows the oil reservoir and flows into the lower oil storage chamber.

潤滑油を交換する場合は、下部の貯油室の下面に設けられた廃油口から排出させた後、補助ノーズ部の貯油室の上面に設けられた給油口から注入することにより実現できる。   The replacement of the lubricating oil can be realized by discharging from a waste oil port provided on the lower surface of the lower oil storage chamber and then injecting from the oil supply port provided on the upper surface of the oil storage chamber of the auxiliary nose portion.

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 ファン側の飛沫室
８ 反ファン側の飛沫室
９ 補助ノーズ部の貯油室
１０ 下部の貯油室
１１ ファン側の油溜り
１２ 反ファン側の油溜り
１３ 補助ノーズ 1 Stator
2 Rotor
3 Rotor shaft
4 fans
5 Fan side oil rake
6 Anti-fan side oil frying disc
7 Splash chamber on the fan side
8 Splash chamber on the anti-fan side
9 Oil storage chamber of auxiliary nose section
10 Lower oil storage chamber
11 Oil sump on fan side
12 Oil pool on the non-fan side
13 Auxiliary nose

Claims (6)

複数の貯油室を有し、回転子軸とともに回転する油掻き揚げ円板と飛沫室を設けた車両用主電動機の軸受装置において、反ファン側に設けられた油掻揚げ円板と、補助ノーズ部の間と車両用主電動機の下部との合計２箇所に設けられた貯油室を有すること特徴とする車両用主電動機の軸受装置。   In a bearing device for a main motor for a vehicle having a plurality of oil storage chambers and rotating with a rotor shaft and a splash chamber, an oil lifting disc provided on the anti-fan side and an auxiliary nose A bearing device for a vehicular main motor, comprising oil storage chambers provided at a total of two locations, between a portion and a lower portion of the vehicular main motor. 前記貯油室は、ファン側の飛沫室と反ファン側の飛沫室とが接続されていることを特徴とする請求項１記載の車両用主電動機の軸受装置。   2. The bearing device for a vehicle main motor according to claim 1, wherein the oil storage chamber is connected to a splash chamber on the fan side and a splash chamber on the anti-fan side. 前記反ファン側の飛沫室の上部には油溜りが設けられていることを特徴とする請求項１記載の車両用主電動機の軸受装置。   2. The bearing device for a main motor for a vehicle according to claim 1, wherein an oil reservoir is provided in an upper part of the splash chamber on the side opposite to the fan. 前記ファン側の飛沫室の上部には前記補助ノーズ部の貯油室を通り流入する潤滑油を軸受内に導くためのガイドが設けられ、下部には油溜りが設けられていることを特徴とする請求項１記載の車両用主電動機の軸受装置。   A guide for guiding lubricating oil flowing through the oil storage chamber of the auxiliary nose portion into the bearing is provided in the upper part of the splash chamber on the fan side, and an oil reservoir is provided in the lower part. The bearing device for a vehicle main motor according to claim 1. 前記ファン側の飛沫室の下部に設けられた油溜りは、軸受内に必要充分な潤滑油が溜まるような位置・容積になっており、前期補助ノーズ部の貯油室を通り流入する潤滑油が多くなると、油溜りをオーバーフローして下部の貯油室に流入するようになっていることを特徴とする請求項１記載の車両用主電動機の軸受装置。   The oil reservoir provided in the lower part of the splash chamber on the fan side has a position and volume so that necessary and sufficient lubricating oil is accumulated in the bearing, and the lubricating oil flowing in through the oil storage chamber of the auxiliary nose portion in the previous period 2. The bearing device for a vehicular main motor according to claim 1, wherein the bearing device overflows the oil sump and flows into the lower oil storage chamber when the amount increases. 下部の貯油室の下面には廃油口が設けられ、前記補助ノーズ部の貯油室の上面には給油口が設けられていることを特徴とする請求項１記載の車両用主電動機の軸受装置。   2. The bearing apparatus for a vehicle main motor according to claim 1, wherein a waste oil port is provided on a lower surface of the lower oil storage chamber, and an oil supply port is provided on an upper surface of the oil storage chamber of the auxiliary nose portion.
JP2009001356A 2009-01-07 2009-01-07 Bearing device in main motor for vehicle Pending JP2010161851A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102954336A (en) * 2012-11-12 2013-03-06 中联重科物料输送设备有限公司 Project machinery and turntable bearing oil overflow collection device thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10178757A (en) * 1996-12-19 1998-06-30 Toshiba Corp Main motor for vehicle
JP2001090740A (en) * 1999-09-24 2001-04-03 Toshiba Transport Eng Inc Bearing oiling device for motor for vehicle
JP2008029099A (en) * 2006-07-20 2008-02-07 Mitsubishi Electric Corp Motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10178757A (en) * 1996-12-19 1998-06-30 Toshiba Corp Main motor for vehicle
JP2001090740A (en) * 1999-09-24 2001-04-03 Toshiba Transport Eng Inc Bearing oiling device for motor for vehicle
JP2008029099A (en) * 2006-07-20 2008-02-07 Mitsubishi Electric Corp Motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102954336A (en) * 2012-11-12 2013-03-06 中联重科物料输送设备有限公司 Project machinery and turntable bearing oil overflow collection device thereof
CN102954336B (en) * 2012-11-12 2015-03-18 中联重科物料输送设备有限公司 Project machinery and turntable bearing oil overflow collection device thereof

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