JP4805791B2 - Railway vehicle drive system - Google Patents

Railway vehicle drive system Download PDF

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JP4805791B2
JP4805791B2 JP2006313013A JP2006313013A JP4805791B2 JP 4805791 B2 JP4805791 B2 JP 4805791B2 JP 2006313013 A JP2006313013 A JP 2006313013A JP 2006313013 A JP2006313013 A JP 2006313013A JP 4805791 B2 JP4805791 B2 JP 4805791B2
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gear case
rotary seal
drive device
seal portion
axle
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JP2008128327A (en
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力 木下
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Toshiba Corp
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Toshiba Corp
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本発明は、鉄道車両を駆動する主電動機から車軸に動力を伝達する鉄道車両用駆動装置に関する。   The present invention relates to a railway vehicle drive device that transmits power from a main motor that drives a railway vehicle to an axle.

鉄道車両の駆動装置、特に電気機関車の駆動装置は、主電動機軸が車軸に対して平行に配置され、主電動機軸端のピニオンと車軸に嵌合されたギャにより主電動機の動力が車軸に伝わる構造となっている。   Railway vehicle drive devices, particularly electric locomotive drive devices, have a main motor shaft arranged parallel to the axle, and the main motor power is driven to the axle by a pinion at the end of the main motor shaft and a gear fitted to the axle. It has a transmitted structure.

すなわち図７に示すように、両端に車輪３を嵌合した車軸１の一方の車輪寄りにギャ２が嵌合されている。主電動機４は車軸軸受装置５により車軸１に平行かつ一定距離を保つように取り付けられている。主電動機４の軸端にはピニオン６が嵌合され、車軸軸受装置５によりギャ２とピニオン６の中心間距離が一定に保たれている。ギャ２とピニオン６はギャケース７により覆われて外気から遮断されている。そして図８，９，１０に示すように、ギャケース７は、車軸１またはギャ２の回転シール部１２にシール部材８を設けて高粘度の潤滑油９を密閉し、また外部からの塵埃や水の浸入を防止している。主電動機４は定期的に台車及び駆動装置から分離し点検整備を行う必要があり、その期間は機関車の種類により異なるがだいたい３年〜６年毎となっている。分解整備作業が極力容易にできるようにギャケース７は図８，９に示すように上下分割構造をとり、回転シール部１２のシール部材８には安価で容易に交換が可能なフェルトが使用されている。
特開平１０−１１５３６４号公報 That is, as shown in FIG. 7, the gear 2 is fitted near one wheel of the axle 1 with the wheels 3 fitted at both ends. The main motor 4 is attached by an axle bearing device 5 so as to be parallel to the axle 1 and keep a constant distance. A pinion 6 is fitted to the shaft end of the main motor 4, and the distance between the centers of the gear 2 and the pinion 6 is kept constant by the axle bearing device 5. The gear 2 and the pinion 6 are covered with a gear case 7 and are shielded from the outside air. As shown in FIGS. 8, 9, and 10, the gear case 7 is provided with a seal member 8 on the rotary seal portion 12 of the axle 1 or gear 2 to seal the high-viscosity lubricating oil 9, and from outside dust and water. Preventing the intrusion of The main motor 4 needs to be periodically separated from the carriage and the drive unit for inspection and maintenance, and the period is about every 3 to 6 years, depending on the type of locomotive. As shown in FIGS. 8 and 9, the gear case 7 has a vertically divided structure so that the disassembly and maintenance work can be performed as easily as possible. The seal member 8 of the rotary seal portion 12 is made of an inexpensive and easily replaceable felt. Yes.
JP-A-10-115364

豪雪地域を走行する機関車では、雪が台車内のギャケースや主電動機に隙間無く堆積する場合があり、一度堆積をするとギャとピニオンの温度上昇や主電動機の温度上昇により雪が一気に溶け出す。融けた雪は水となりギャケースや主電動機の外表面を伝わり流れ落ちる。これらの融雪水は一部ギャケースの側面を伝わり回転シール部のフェルトに到達する。フェルトは羊毛から成っており潤滑油を吸い込んではいるものの、水分を多く吸収する性質がある。フェルトが吸水することでギャケース内に水が浸入することになる。ギャケース内に水が浸入すると潤滑油に水が混入し歯車により攪拌されることで潤滑油の性能が極端に低下し、歯車の潤滑不良が生じる。機関車の出力が大きくなる程、歯車歯面の潤滑条件が厳しい傾向となるためにギャケース内ヘの水浸入を厳に防がなければならない。   In locomotives that travel in heavy snowfall areas, snow may accumulate on the gyase and main motor in the bogie without any gaps, and once it accumulates, the snow melts all at once due to an increase in the temperature of the gear and pinion and the temperature of the main motor. The melted snow turns into water and flows down the outer surface of the garcase and the main motor. A part of these melted waters travels along the side of the gear case and reaches the felt of the rotating seal part. Felt is made of wool and sucks lubricating oil, but has the property of absorbing a lot of moisture. As the felt absorbs water, the water enters the gear case. When water enters the gear case, the water is mixed into the lubricating oil and stirred by the gears, so that the performance of the lubricating oil is drastically reduced and poor lubrication of the gears occurs. As the output of the locomotive increases, the lubrication conditions of the gear tooth surfaces tend to be severer, so water intrusion into the gear case must be strictly prevented.

そこで本発明は、ギャケースの分解及び点検またはシール部材の交換などの作業性を損なうことなく水がギャケース内に浸入することを防止し、歯車の潤滑不良を防ぐことのできる鉄道車両用駆動装置を提供することを目的とする。   Therefore, the present invention provides a railway vehicle drive device that prevents water from entering the gear case without impairing workability such as disassembling and checking the gear case or replacing the seal member, and can prevent poor gear lubrication. The purpose is to provide.

本発明の鉄道車両用駆動装置は、鉄道車両の車軸に車軸軸受装置を介して取り付けられた主電動機と、前記主電動機の軸端に取り付けられたピニオンと、前記車軸に取り付けられ前記ピニオンと噛合するギャと、前記ピニオンおよび前記ギャを覆うギャケースとを備え、前記ギャケースは、前記車軸を含む水平面で上側ギャケースおよび下側ギヤケースに２分割されるとともに、前記車軸または前記ギャが貫通する部分に交換可能なシール部材を有する回転シール部を設け、さらに、前記上側ギャケースの外側面の前記回転シール部の外周に前記回転シール部から前記ギャケース内に水が侵入することを防ぐ防滴手段としての樋を設けた構成とする。 A railcar drive device according to the present invention includes a main motor attached to an axle of a railcar via an axle bearing device, a pinion attached to a shaft end of the main motor, and a pinion attached to the axle. And a gear case that covers the pinion and the gear, and the gear case is divided into an upper gear case and a lower gear case on a horizontal plane including the axle, and is replaced with a portion through which the axle or the gear penetrates. the rotary seal section is provided with a possible seal member, further, the trough of a drip-proof means for preventing the water from entering into said Gyakesu from the rotating seal portion on the outer periphery of the rotating seal portion of the outer surface of the upper Gyakesu It is set as the structure which provided.

本発明によれば、ギャケースの分解及び点検またはシール部材の交換などの作業性を損なうことなく水がギャケース内に浸入することを防止し、歯車の潤滑不良を防ぐことのできる鉄道車両用駆動装置を提供することができる。   According to the present invention, a railroad vehicle drive device that prevents water from entering the gear case without impairing workability such as disassembly and inspection of the gear case or replacement of the seal member, and can prevent poor gear lubrication. Can be provided.

（第１の実施の形態）
本発明の第１の実施の形態の鉄道車両用駆動装置は、図１および図１のII−II線に沿う断面図である図２に示すように、上側ギャケース７ａの回転シール部１２のハカマ１０の外周端部に、防滴手段として放射線状に突起する円弧形状の樋１１を設けた構成である。樋１１は主電動機４側の回転シール部１２と車輪３側の回転シール部１２の両方に設ける。その他の構成は図７〜図１０に示した従来の鉄道車両用駆動装置と同じである。 (First embodiment)
As shown in FIG. 2, which is a cross-sectional view taken along the line II-II in FIGS. 1 and 1, the railcar drive device according to the first embodiment of the present invention has a hook of the rotary seal portion 12 of the upper gear case 7a. An arc-shaped ridge 11 projecting radially as a drip-proof means is provided at the outer peripheral end of 10. The eaves 11 are provided on both the rotation seal portion 12 on the main motor 4 side and the rotation seal portion 12 on the wheel 3 side. Other configurations are the same as those of the conventional railcar drive device shown in FIGS.

本実施の形態の鉄道車両用駆動装置においては、台車内に設けられたギャケース７や主電動機４に堆積し融雪した水は上側ギャケース７ａの上部から外側壁面を伝わり下方へと垂れ流れ、回転シール部１２のハカマ１０に到達した水は樋１１によって形成された溝１１aからハカマ１０の外周面上を円弧方向に流れ、樋１１に誘導される形でシール部材８を回避し垂れ流れる。このように樋１１をハカマ１０の外周端部に設けることで、上側ギャケース７ａの外壁面を伝わり垂れ流れる水がシール部材８に吸水されることがなく、ひいてはギャケース７内への水浸入を防止することができる。   In the railway vehicle drive device of the present embodiment, water accumulated and melted on the gear case 7 and the main motor 4 provided in the carriage flows down from the upper side of the upper case 7a through the outer wall surface and flows downward, and is rotated and sealed. The water that has reached the hook 10 of the section 12 flows in an arc direction on the outer peripheral surface of the hook 10 from the groove 11a formed by the hook 11, and drips around the seal member 8 while being guided by the hook 11. Thus, by providing the collar 11 at the outer peripheral end of the hack 10, the water that flows down the outer wall surface of the upper gear case 7 a is not absorbed by the seal member 8, thereby preventing water from entering the gear case 7. can do.

本実施の形態は、回転シール部１２近傍の上側ギャケース７ａ外に樋１１を取り付けることでギャケース７の構造を大きく変更することがなく、ギャケース７の分解やフェルト交換などの点検や保守作業には全く影響がなく従来技術のギャケースと同様に容易にこれら作業を行うことができる。   In this embodiment, the structure of the gear case 7 is not greatly changed by attaching the collar 11 outside the upper gear case 7a in the vicinity of the rotation seal portion 12, and the inspection and maintenance work such as disassembly and felt replacement of the gear case 7 can be performed. There is no influence at all, and these operations can be easily performed as in the case of the conventional case.

（第２の実施の形態）
本発明の第２の実施形態の鉄道車両用駆動装置は、図３に示すように、上側ギャケース７aに設けた樋１１の円弧方法の両端部に樋１１の溝１１ａから外周方法に伸びる傾斜板１３を設けた構成である。 (Second Embodiment)
As shown in FIG. 3, the railcar drive device according to the second embodiment of the present invention is an inclined plate extending from the groove 11 a of the flange 11 to the outer periphery at both ends of the circular arc method of the flange 11 provided on the upper gear case 7 a. 13 is provided.

本実施の形態によれば、樋１１の溝内１１ａを流れた水が、樋１１の円弧方向の端部から傾斜板１３に誘導されて回転シール部１２から外周方法に離れるように垂れ流れる。このため下側ギャケース７ｂのシール部材８に水が侵入することを防止することができる。こうしてギャケース７外壁面に垂れ流れる水をシール部材８から離す作用と効果はさらに高まる。図３ではギャケースの車輪３側に設けた図であるが、主電動機４側に設けても同様の作用効果が得られる。   According to the present embodiment, the water that has flowed through the groove 11 a of the ridge 11 is guided to the inclined plate 13 from the end in the arc direction of the ridge 11 and drips away from the rotary seal portion 12 in an outer peripheral manner. Therefore, it is possible to prevent water from entering the seal member 8 of the lower gear case 7b. In this way, the action and effect of separating the water flowing on the outer wall surface of the gear case 7 from the seal member 8 is further enhanced. Although FIG. 3 is a view provided on the wheel case 3 side of the gear case, similar effects can be obtained even if provided on the main motor 4 side.

（第３の実施の形態）
図４に本発明の第３の実施の形態を示す。本実施の形態は、上側ギャケース７ａの側面で回転シール部１２の外周側に防滴手段としてＬ字形樋１４を取り付けた構成である。前記第２の実施の形態（図３）のように、Ｌ字形樋１４の両端に傾斜板１３を設けてもよい。本実施の形態においても前記第１，第２の実施の形態と同様の作用効果が得られる。 (Third embodiment)
FIG. 4 shows a third embodiment of the present invention. In this embodiment, an L-shaped ridge 14 is attached as a drip-proof means to the outer peripheral side of the rotary seal portion 12 on the side surface of the upper gear case 7a. As in the second embodiment (FIG. 3), the inclined plates 13 may be provided at both ends of the L-shaped ridge 14. Also in the present embodiment, the same operational effects as those in the first and second embodiments can be obtained.

（第４の実施の形態）
図５に本発明の第４の実施の形態を示す。本実施の形態は、上側ギャケース７ａの側面で回転シール部１２の外周側に防滴手段として軸方向断面が直線状で傾斜を有する傾斜樋１５を設けた構成である。本実施の形態によれば、上側ギャケース７ａの壁画と傾斜樋１５により水が流れるため、前記第１の実施の形態と同様の作用効果が得られる。なお、傾斜樋１５の両端に図３に示したような傾斜板１３を設けてもよい。 (Fourth embodiment)
FIG. 5 shows a fourth embodiment of the present invention. In the present embodiment, an inclined rod 15 is provided as a drip-proof means on the side surface of the upper gear case 7a on the outer side of the rotary seal portion 12 and has an axial cross section that is linear and inclined. According to the present embodiment, water flows through the murals of the upper gear case 7a and the inclined rod 15, so that the same effect as that of the first embodiment can be obtained. In addition, you may provide the inclination board 13 as shown in FIG.

（第５の実施の形態）
図６に本発明の第５の実施の形態を示す。本実施の形態は、上側ギャケース７ａの回転シール部１２を構成するハカマ１０の外側に防滴手段としてＬ字形樋１６を設けた構成である。本実施の形態によれば、Ｌ字形樋１６を付けたハカマ１０を旋盤加工で製作した後に二分割することで上下のハカマ１０を共用部品とすることが可能となり製作性が向上し、安価にギャケース７を製造することができる。 (Fifth embodiment)
FIG. 6 shows a fifth embodiment of the present invention. In the present embodiment, an L-shaped ridge 16 is provided as a drip-proof means on the outside of the hack 10 constituting the rotary seal portion 12 of the upper gear case 7a. According to the present embodiment, the upper and lower hooks 10 can be used as common parts by manufacturing the hook 10 with the L-shaped ridge 16 and then dividing it into two parts by lathe processing. Gyacase 7 can be manufactured.

本発明の第１の実施の形態の鉄道車両用駆動装置の要部の構成を示す断面図。Sectional drawing which shows the structure of the principal part of the railcar drive device of the 1st Embodiment of this invention. 図１のII−II線に沿うギャケースの側面図。The side view of the gear case which follows the II-II line of FIG. 本発明の第２の実施の形態の鉄道車両用駆動装置の要部の構成を示すギャケースの側面図。The side view of a gear case which shows the structure of the principal part of the railcar drive device of the 2nd Embodiment of this invention. 本発明の第３の実施の形態の鉄道車両用駆動装置の要部の構成を示す断面図。Sectional drawing which shows the structure of the principal part of the railcar drive device of the 3rd Embodiment of this invention. 本発明の第４の実施の形態の鉄道車両用駆動装置の要部の構成を示す断面図。Sectional drawing which shows the structure of the principal part of the railcar drive device of the 4th Embodiment of this invention. 本発明の第５の実施の形態の鉄道車両用駆動装置の要部の構成を示す断面図。Sectional drawing which shows the structure of the principal part of the railcar drive device of the 5th Embodiment of this invention. 従来の鉄道車両用駆動装置の構成を示す断面図。Sectional drawing which shows the structure of the conventional railway vehicle drive device. 図７のVIII−VIII線に沿う断面図。Sectional drawing which follows the VIII-VIII line of FIG. 図７のIX−IX線に沿う断面図。Sectional drawing which follows the IX-IX line of FIG. 図７のＸ部詳細図。FIG. 8 is a detailed view of a portion X in FIG. 7.

符号の説明Explanation of symbols

１…車軸、２…ギャ、３…車輪、４…主電動機、５…車軸軸受装置、６…ピニオン、７…ギャケース、７ａ…上側ギャケース、７ｂ…下側ギャケース、８…シール部材、９…潤滑油、１０…ハカマ、１１…樋、１１ａ…溝、１２…回転シール部、１３…傾斜板、１４，１６…Ｌ字型樋、１５…傾斜樋、１６…レール。   DESCRIPTION OF SYMBOLS 1 ... Axle, 2 ... Gear, 3 ... Wheel, 4 ... Main motor, 5 ... Axle bearing device, 6 ... Pinion, 7 ... Gear case, 7a ... Upper gear case, 7b ... Lower gear case, 8 ... Seal member, 9 ... Lubrication Oil, 10 ... hack, 11 ... hail, 11a ... groove, 12 ... rotating seal part, 13 ... inclined plate, 14, 16 ... L-shaped hail, 15 ... inclined hail, 16 ... rail.

Claims (6)

鉄道車両の車軸に車軸軸受装置を介して取り付けられた主電動機と、前記主電動機の軸端に取り付けられたピニオンと、前記車軸に取り付けられ前記ピニオンと噛合するギャと、前記ピニオンおよび前記ギャを覆うギャケースとを備え、前記ギャケースは、前記車軸を含む水平面で上側ギャケースおよび下側ギヤケースに２分割されるとともに、前記車軸または前記ギャが貫通する部分に交換可能なシール部材を有する回転シール部を設け、さらに、前記上側ギャケースの外側面の前記回転シール部の外周に前記回転シール部から前記ギャケース内に水が侵入することを防ぐ防滴手段としての樋を設けたことを特徴とする鉄道車両用駆動装置。 A main motor attached to the axle of a railway vehicle via an axle bearing device, a pinion attached to the shaft end of the main motor, a gear attached to the axle and meshing with the pinion, the pinion and the gear and a Gyakesu covering the Gyakesu, along with being divided into two upper Gyakesu and lower gear case in a horizontal plane containing the axle, the rotary seal unit in which the axle or the gears has a replaceable seal member in a portion through And a rail as a drip-proof means for preventing water from entering the gear case from the rotary seal portion on the outer periphery of the rotary seal portion on the outer surface of the upper gear case. Drive device. 前記防滴手段は、前記回転シール部の上部外周に設けられた円弧状の樋であることを特徴とする請求項１記載の鉄道車両用駆動装置。   2. The railcar drive device according to claim 1, wherein the drip-proof means is an arc-shaped ridge provided on an upper outer periphery of the rotary seal portion. 前記防滴手段は、前記回転シール部の上部の前記ギャケースの外壁に取り付けられた断面Ｌ字形の樋であることを特徴とする請求項１記載の鉄道車両用駆動装置。   2. The railcar drive device according to claim 1, wherein the drip-proof means is an L-shaped cross section attached to an outer wall of the gear case above the rotary seal portion. 前記防滴手段は、前記回転シール部の上部の前記ギャケースの外壁に取り付けられた断面平板状の傾斜樋であることを特徴とする請求項１記載の鉄道車両用駆動装置。   The railcar drive device according to claim 1, wherein the drip-proof means is an inclined rod having a flat cross-sectional shape attached to the outer wall of the gear case above the rotary seal portion. 前記防滴手段は、前記回転シール部の外面側部に取り付けられた断面Ｌ字形の樋であることを特徴とする請求項１記載の鉄道車両用駆動装置。   The railcar drive device according to claim 1, wherein the drip-proof means is a flange having an L-shaped cross section attached to an outer surface side portion of the rotary seal portion. 前記樋の端部に前記樋を伝って流れた水を前記回転シール部を避けて流下させる傾斜板を備えていることを特徴とする請求項２，３，４のいずれかに記載の鉄道車両用駆動装置。   The railway vehicle according to any one of claims 2, 3, and 4, further comprising an inclined plate that causes the water that has flowed along the reed to flow down to the end of the reed, avoiding the rotary seal portion. Drive device.
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JP2017043213A (en) * 2015-08-26 2017-03-02 株式会社東芝 Driving apparatus for railway vehicle
FR3055687B1 (en) * 2016-09-07 2019-05-10 Thales LOCKING LUBRICATION MECHANISM COMPRISING A TRANSMISSION GEAR
JP7203632B2 (en) * 2019-02-22 2023-01-13 東洋電機製造株式会社 Low-floor vehicle gear unit

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DE19530155A1 (en) * 1995-08-16 1997-02-20 Siemens Ag Single axle drive of electric traction vehicles
US5676221A (en) * 1996-06-06 1997-10-14 Carol Ann Mackay Gear case
JPH1098807A (en) * 1996-09-20 1998-04-14 Hitachi Cable Ltd Outdoor machine housing
JP4228844B2 (en) * 2003-09-02 2009-02-25 三菱電機株式会社 Gear coupling
JP4505365B2 (en) * 2005-03-31 2010-07-21 本田技研工業株式会社 Drive wheel bearing device

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