JPH0681857U - Shaft seal device for gear trains for railway vehicles - Google Patents
Shaft seal device for gear trains for railway vehiclesInfo
- Publication number
- JPH0681857U JPH0681857U JP2866793U JP2866793U JPH0681857U JP H0681857 U JPH0681857 U JP H0681857U JP 2866793 U JP2866793 U JP 2866793U JP 2866793 U JP2866793 U JP 2866793U JP H0681857 U JPH0681857 U JP H0681857U
- Authority
- JP
- Japan
- Prior art keywords
- gear
- shaft
- bearing
- axle
- labyrinth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- General Details Of Gearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
(57)【要約】
【目的】 鉄道車両用歯車装置における軸受からの油漏
れを防止する軸封装置を提供する。
【構成】 主電動機の電機子軸に接続した小歯車軸に取
り付けた小歯車と、車軸４に取り付けた大歯車１を噛み
合わせ歯車箱３に納めた歯車装置において、車軸４の歯
車箱外側を軸支する軸受８の押え蓋１１に、車輪ボス７
との間にラビリンスの一部として作用するすき間を形成
した外蓋１４を取着した軸封装置を構成する。
【効果】 高速走行時の油漏れを防止できる。
(57) [Abstract] [Purpose] To provide a shaft seal device for preventing oil leakage from a bearing in a gear device for a railway vehicle. [Structure] In a gear device in which a small gear attached to a small gear shaft connected to an armature shaft of a main motor and a large gear 1 attached to an axle 4 mesh with each other in a gear box 3, the outside of the gear box of the axle 4 is The wheel boss 7 is attached to the retainer lid 11 of the bearing 8 which is axially supported.
A shaft sealing device is provided with an outer lid 14 having a gap formed between the outer lid 14 and the outer lid 14 that acts as a part of the labyrinth. [Effect] Oil leakage can be prevented during high-speed traveling.
Description
【０００１】[0001]
この考案は、鉄道車両において、主電動機の駆動力を減速して車輪に伝達する 歯車装置における軸封装置の改良に関する。 The present invention relates to an improvement of a shaft sealing device in a gear device that decelerates a driving force of a main electric motor and transmits the driving force to wheels in a railway vehicle.
【０００２】[0002]
鉄道車両における主電動機の駆動力を減速して車輪に伝達する歯車装置は、図 １に示すように、主電動機の電機子軸にたわみ軸継手を介して接続した小歯車軸 ５に一体成形した小歯車２と、車軸４に取り付けた大歯車１を噛み合わせ歯車箱 ３に納めてなり、歯車箱内に収容している潤滑油を大歯車１の回転によりかき上 げ、歯車噛み合い部および車軸４の両端に設けた軸受８と小歯車軸５の両端に設 けた軸受９を潤滑する構造からなる。 As shown in FIG. 1, a gear device for reducing the driving force of a main electric motor in a railway vehicle and transmitting it to wheels is integrally formed with a small gear shaft 5 connected to an armature shaft of the main electric motor through a flexible shaft joint. A small gear 2 and a large gear 1 mounted on an axle 4 are meshed and housed in a gear box 3. The lubricating oil contained in the gear box is scraped up by the rotation of the large gear 1, the gear meshing portion and the axle. The bearing 8 provided at both ends of the shaft 4 and the bearing 9 provided at both ends of the pinion shaft 5 are lubricated.
【０００３】 上記歯車装置の車軸４の歯車箱外側に設けた軸封装置は、図１および図３に示 すように、歯車箱３に取り付けた軸受押え１０と車軸４に取り付けた油切り部材 １２によりラビリンスが形成され、その外側にラビリンスシール１３を形成した 押え蓋１１を被着して構成されている。As shown in FIGS. 1 and 3, the shaft sealing device provided on the outside of the gear box of the axle 4 of the above gear device includes a bearing retainer 10 attached to the gear box 3 and an oil removing member attached to the axle 4. A labyrinth is formed by 12, and a holding lid 11 having a labyrinth seal 13 formed on the outside thereof is attached.
【０００４】 上記歯車装置はラビリンスを設けて、歯車箱外側に設けた軸受からの油漏れの 防止を図っている。その歯車装置を有する鉄道車両が高速走行すると、車輪６と 歯車箱３との隙間部分を通過する走行風等により、歯車箱内において大歯車によ りかきあげられ軸受８を潤滑している油は、軸受押え１０と油切り部材１２との すきま、ラビリンスシール１３を経て油漏れが起こる。The above gear device is provided with a labyrinth to prevent oil leakage from a bearing provided outside the gear box. When a railway vehicle having the gear device travels at a high speed, the oil that is raked up by the large gear in the gear box and lubricates the bearing 8 is generated by the traveling wind passing through the clearance between the wheel 6 and the gear box 3. The oil leaks through the clearance between the bearing retainer 10 and the oil draining member 12 and the labyrinth seal 13.
【０００５】[0005]
上記のごとく、従来の鉄道車両用歯車装置は、高速走行時にラビリンスから油 漏れを起こす欠点があり、潤滑油の消耗が激しいばかりか、最良の潤滑状態を維 持するのが困難であつた。 As described above, the conventional railway vehicle gear device has the drawback of causing oil leakage from the labyrinth during high-speed traveling, which not only consumes the lubricating oil severely but also makes it difficult to maintain the optimum lubricating state.
【０００６】 この考案は、上記の現状に鑑み、高速走行時にラビリンスからの油漏れを防止 するため、歯車箱外側に設けた軸受押え蓋に、車輪ボスとの間にラビリンスの一 部として作用するすき間を形成した外蓋を設けてなる鉄道車両用歯車装置の軸封 装置を提案するものである。In view of the above situation, the present invention acts as a part of the labyrinth between the wheel holding boss provided on the outside of the gear box and the wheel holding boss in order to prevent oil leakage from the labyrinth during high-speed traveling. The present invention proposes a shaft sealing device for a gear device for railway vehicles, which is provided with an outer lid having a gap.
【０００７】[0007]
上記目的を達成するため、この考案の鉄道車両用歯車装置の軸封装置は、主電 動機の電機子軸にたわみ軸継手を介して接続した小歯車軸に一体成形した小歯車 と、車軸に取り付けた大歯車を噛み合わせ歯車箱に納めた歯車装置において、車 軸の歯車箱外側を軸支する軸受の押え蓋に、車輪ボスとの間にラビリンスの一部 として作用するすき間を形成した外蓋を設けてなる。 In order to achieve the above object, a shaft seal device for a gear device for a railroad vehicle according to the present invention comprises a small gear integrally formed with a small gear shaft connected to an armature shaft of a main motor through a flexible shaft joint, and an axle shaft. In a gear device in which the attached large gear is meshed in a gearbox, the bearing cover that axially supports the outside of the gearbox of the axle has an outer space that forms a part of the labyrinth with the wheel boss. It has a lid.
【０００８】[0008]
軸受の押え蓋と車輪ボスとの間には、車輪ボスとの間にラビリンスの一部とし て作用するすき間を形成した外蓋が設けられており、鉄道車両の高速走行に伴い 走行風が生じても、軸受側にその影響を及ぼすことはない。その結果、軸受側か らの潤滑油の油漏れが防止できる。 An outer lid is provided between the bearing retainer lid and the wheel boss to form a gap between the bearing boss and the wheel boss, which acts as part of the labyrinth. However, it does not affect the bearing side. As a result, it is possible to prevent the lubricating oil from leaking from the bearing side.
【０００９】 上記のごとく、ラビリンスからの油漏れが阻止される結果、潤滑油のむだな消 耗が減少し、最良の潤滑状態を維持できる。As described above, as a result of preventing oil leakage from the labyrinth, wasteful consumption of lubricating oil is reduced, and the best lubrication state can be maintained.
【００１０】[0010]
この考案の実施例を図面に基づいて説明する。 この考案の鉄道車両用歯車装置は、基本的には図１に示す従来の歯車装置と同 じく、主電動機の電機子軸にたわみ軸継手を介して接続した小歯車軸５に一体成 形した小歯車２と、車軸４に取り付けた大歯車１を噛み合わせ歯車箱３に納めて なり、歯車箱内に収容している潤滑油を大歯車１の回転によりかき上げ、歯車噛 み合い部および車軸４の両端に設けた軸受８と小歯車軸５の両端に設けた軸受９ を潤滑する構造からなり、車軸４の歯車箱側に設けた軸封装置は、歯車箱３に取 り付けた軸受押え１０と車軸４に取り付けた油切り部材１２によりラビリンスが 形成され、その外側にラビリンスシール１３を形成した押え蓋１１を被着して構 成され、さらに車軸４の車輪ボス７との間にラビリンスの一部として作用するす き間を形成した外蓋１４を押え蓋１１に取着する。 An embodiment of this invention will be described with reference to the drawings. The gear device for a railway vehicle of the present invention is basically the same as the conventional gear device shown in FIG. 1, and is integrally formed on the small gear shaft 5 connected to the armature shaft of the main motor through a flexible shaft coupling. The small gear 2 and the large gear 1 mounted on the axle 4 are meshed and housed in the gear box 3, and the lubricating oil contained in the gear box is scraped by the rotation of the large gear 1 to form a gear meshing portion. The bearing 8 provided at both ends of the axle 4 and the bearing 9 provided at both ends of the small gear shaft 5 are lubricated. The shaft seal device provided on the gear box side of the axle 4 is mounted on the gear box 3. The labyrinth is formed by the bearing retainer 10 and the oil draining member 12 attached to the axle 4, and the retainer lid 11 having the labyrinth seal 13 is attached to the outside thereof. Formed a gap in between to act as part of the labyrinth Attaching the lid 14 to the presser lid 11.
【００１１】 上記外蓋１４を設けることにより、外蓋１４と車輪ボス７との隙間でラビリン ス効果が発揮されるため、内部の油切り及びラビリンスシール１３の作用と相ま って歯車箱内からの油漏れは起こらない。Since the labyrinth effect is exhibited in the gap between the outer cover 14 and the wheel boss 7 by providing the outer cover 14, the internal oil draining and the labyrinth seal 13 work together with the inner space of the gear box. No oil leaks from.
【００１２】[0012]
この考案の歯車装置の軸封装置によれば、高速走行時においても歯車装置から の油漏れが防止でき、最良の潤滑状態が維持され、駆動力の伝達ロスを著しく低 減できる。 According to the shaft seal device of the gear device of the present invention, oil leakage from the gear device can be prevented even during high-speed traveling, the best lubrication state can be maintained, and the transmission loss of the driving force can be remarkably reduced.
【図１】従来の鉄道車両用歯車装置の上半部を示す断面
図である。FIG. 1 is a cross-sectional view showing an upper half of a conventional gear device for a railway vehicle.
【図２】この考案の実施による鉄道車両用歯車装置にお
ける軸封装置部分の詳細を示す拡大断面図である。FIG. 2 is an enlarged cross-sectional view showing details of a shaft sealing device portion in a gear device for a railway vehicle according to an embodiment of the present invention.
【図３】図１の車軸側軸受部分を示す拡大断面図であ
る。FIG. 3 is an enlarged cross-sectional view showing a bearing portion on the axle side of FIG. 1.
１ 大歯車 ２ 小歯車 ３ 歯車箱 ４ 車軸 ５ 小歯車軸 ６ 車輪 ７ 車輪ボス ８ 軸受 ９ 軸受 １０ 軸受押え １１ 押え蓋 １２ 油切り部材 １３ ラビリンスシール １４ 外蓋 1 large gear 2 small gear 3 gear box 4 axle 5 small gear shaft 6 wheel 7 wheel boss 8 bearing 9 bearing 10 bearing retainer 11 retainer lid 12 oil draining member 13 labyrinth seal 14 outer lid
Claims (1)
して接続した小歯車軸に一体成形した小歯車と、車軸に
取り付けた大歯車を噛み合わせ歯車箱に納めた歯車装置
において、車軸の歯車箱外側を軸支する軸受の押え蓋
に、車輪ボスとの間にラビリンスの一部として作用する
すき間を形成した外蓋を取着した鉄道車両用歯車装置の
軸封装置。1. A gear unit in which a small gear integrally formed with a small gear shaft connected to an armature shaft of a main motor via a flexible shaft coupling and a large gear mounted on an axle are meshed in a gear box, A shaft seal device for a gear train for a railway vehicle, in which an outer cover having a gap acting as a part of a labyrinth between a wheel boss and a holding cover of a bearing that supports the outside of the gear box is attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2866793U JPH0681857U (en) | 1993-04-30 | 1993-04-30 | Shaft seal device for gear trains for railway vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2866793U JPH0681857U (en) | 1993-04-30 | 1993-04-30 | Shaft seal device for gear trains for railway vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0681857U true JPH0681857U (en) | 1994-11-22 |
Family
ID=12254871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2866793U Pending JPH0681857U (en) | 1993-04-30 | 1993-04-30 | Shaft seal device for gear trains for railway vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0681857U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009113765A (en) * | 2007-11-09 | 2009-05-28 | Sumitomo Metal Ind Ltd | Gear unit for railway vehicle |
| JP2009150504A (en) * | 2007-12-21 | 2009-07-09 | Sumitomo Metal Ind Ltd | Shaft seal mechanism and railroad vehicle gear device equipped with the same |
-
1993
- 1993-04-30 JP JP2866793U patent/JPH0681857U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009113765A (en) * | 2007-11-09 | 2009-05-28 | Sumitomo Metal Ind Ltd | Gear unit for railway vehicle |
| JP2009150504A (en) * | 2007-12-21 | 2009-07-09 | Sumitomo Metal Ind Ltd | Shaft seal mechanism and railroad vehicle gear device equipped with the same |
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