JP2004162883A - Railway axlebox bearing - Google Patents

Railway axlebox bearing Download PDF

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Publication number
JP2004162883A
JP2004162883A JP2002332363A JP2002332363A JP2004162883A JP 2004162883 A JP2004162883 A JP 2004162883A JP 2002332363 A JP2002332363 A JP 2002332363A JP 2002332363 A JP2002332363 A JP 2002332363A JP 2004162883 A JP2004162883 A JP 2004162883A
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JP
Japan
Prior art keywords
bearing
axle
lubricating oil
oil
railway vehicle
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
Application number
JP2002332363A
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Japanese (ja)
Inventor
Takehiko Jinno
勇彦 神野
Kazunari Murai
一成 村井
Tatsuo Nakanishi
辰夫 中西
Yutaka Terasawa
豊 寺澤
Hironobu Ito
広信 伊藤
Hideto Nakanishi
英人 中西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTN Corp
Central Japan Railway Co
Original Assignee
NTN Corp
Central Japan Railway Co
NTN Toyo Bearing Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by NTN Corp, Central Japan Railway Co, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Priority to JP2002332363A priority Critical patent/JP2004162883A/en
Publication of JP2004162883A publication Critical patent/JP2004162883A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F16C33/6674—Details of supply of the liquid to the bearing, e.g. passages or nozzles related to the amount supplied, e.g. gaps to restrict flow of the liquid
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F16C33/667—Details of supply of the liquid to the bearing, e.g. passages or nozzles related to conditioning, e.g. cooling, filtering
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/10—Railway vehicles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To reduce damage to a bearing and a seal resulting from wear debris mixed in lubricating oil. <P>SOLUTION: Considering the behavior of the lubricating oil in this railway axlebox bearing 1, a filter seal 42 is arranged on the way of a lubricating oil circulation passage for trapping iron powder such as wear debris. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は鉄道車両車軸用軸受に関し、より詳しくは、潤滑油中に混在する摩耗粉等を油溜り部内に捕捉するようにしたものである。
【０００２】
【従来の技術】
鉄道車両車軸用軸受は鉄道車両車軸用として設計・製作した軸受であって、複列円筒ころ軸受（図２参照）や複列円すいころ軸受（図３参照）が用いられる。
【０００３】
転がり軸受において、潤滑油に混入した異物が軸受内部に侵入するのを防止するために、軸受の両側位置にフィルタシールを設けることが知られている（特許文献１）。
【０００４】
【特許文献１】
実用新案登録第２５４６４５６号公報（段落番号０００３、図５）
【０００５】
【発明が解決しようとする課題】
軸箱内には油溜り部があって、軸受内部の潤滑を終えた潤滑油は一旦この油溜り部に戻り、そこから再び軸受内部に向かって流出する。潤滑油中には軸受の摩耗粉等の鉄粉浮遊物が混ざっている。そのため、摩耗粉等が混在した潤滑油が軌道面やシールリップ部に至ると軸受やシールを傷める原因となる。
【０００６】
本発明の目的は、潤滑油中に混在する摩耗粉等に起因する軸受やシールの傷みを軽減させることにある。
【０００７】
【課題を解決するための手段】
本発明は、鉄道車両車軸用軸受の内部における潤滑油の挙動を考慮し、フィルターシールを配置して摩耗粉等の鉄粉を捕集させることにより、軸受やシールの傷みを軽減させるようにしたものである。
【０００８】
請求項１の発明は、鉄道車両の車軸を回転自在に支持するための鉄道車両車軸用軸受であって、車軸に嵌合させた内輪と、軸箱に嵌合させた外輪と、内輪の軌道と外輪の軌道との間に転動自在に介在する転動体と、転動体を等間隔に保持するための保持器とを具備し、潤滑油循環経路の途中にフィルターシールを設けたことを特徴とする。
【０００９】
請求項２の発明は、請求項１の鉄道車両車軸用軸受において、フィルターシールを軸箱内部の油溜り部に設けたことを特徴とする。
【００１０】
請求項３の発明は、請求項２の鉄道車両車軸用軸受において、油溜り部内の、潤滑油流出口の上流側にフィルターシールを配置したことを特徴とする。
【００１１】
【発明の実施の形態】
以下、図面に従って本発明の実施の形態を説明する。
【００１２】
まず、図１に従って複列円すいころ軸受を用いた鉄道車両車軸用軸受の構成を説明する。この鉄道車両車軸用軸受１は、軸方向に隣接した一対の内輪２、複列の軌道をもった複列外輪４、内輪２の軌道と外輪４の軌道との間に転動自在に介在する複列の転動体（ここでは円すいころ）６、各列の転動体６を円周方向で等間隔に保持する一対の保持器８を主要な構成要素としている。
【００１３】
内輪２は車軸１０の端部に嵌合させ、車軸１０の肩部に当接したスリンガ１２と、車軸１０の端部に形成したねじ部１４に締め込んだナット１６で軸方向に位置決めをして固定してある。外輪４は軸箱２０に嵌合させてあり、その軸箱２０は台車（図示省略）に固定される。したがって、鉄道車両車軸用軸受１により車軸１０が回転自在に支持されることとなる。
【００１４】
軸箱２０の内部には油溜り２２を設けてあり、通常、転動体６のピッチ円直径付近に油面が位置するようにして潤滑油を溜めてある。運転時には、軸受の回転に伴って潤滑油がはねかけられて油潤滑がなされる。油溜り２２と連通する貫通穴２４を設け、その貫通穴２４に磁石栓２６を取り付けてある。油溜り部２２内の潤滑油中に混在する摩耗粉等を磁気的に吸着するためである。
【００１５】
軸箱２０の車両外側（図１の左側）の端部には前蓋３０が取り付けられ、車両内側（図１の右側）の端部には後蓋３６が取り付けてある。図示するように、前蓋３０は軸箱２０の開口端部とそこから露出した車軸１０の端部とを覆っている。前蓋３０の内周には環状の仕切り壁３２を形成してある。仕切り壁３２は下部で部分的に切り欠いてあり、油溜り部２２と連通して潤滑油を溜める予備室３４が形成されている。
【００１６】
後蓋３６とスリンガ１２との間にラビリンスシール１８が形成されている。また、後蓋３６の内周面にオイルシール３８を嵌合させ、そのシールリップをスリンガ１２の外周面に摺接させてある。オイルシール３８は、たとえば、ばねを使用した単一のリップと金属環とからなり、外周面がゴムで覆われている形式のものなど、ＪＩＳ Ｂ ２４０２に規定されている種類ならばいずれも使用可能である。
【００１７】
オイルシール３８には仕切り板４０を装着してある。仕切り板４０はたとえば鉄板製の、断面Ｌ字形の環状部材であって、軸方向に延在する円筒部分を金属環の内周面に嵌め込んである。仕切り板４０は、前蓋３０における仕切り壁３２に相当し、オイルシールとの間に空間（シール室）を画成して、潤滑油の循環流がオイルシール３８のとりわけシールリップに直接当たらないようにする一種の緩衝部材としての役割を果たす。シールリップ部分に潤滑油の循環流が直接当たると潤滑油の漏れが生ずるおそれがあるからである。
【００１８】
軸受回転時における軸受内の潤滑油の挙動を確認したところ、図２および図３に示すように、軸箱２０内の油溜り部２２には潤滑油の流れがあることが分かった。図２は円筒ころ軸受を用いた鉄道車両車軸用軸受の縦断面を示し、図３は円すいころ軸受を用いた鉄道車両車軸用軸受の縦断面を示している。いずれも、図中の白抜き矢印は油溜り部２２からの潤滑油の流れを示し、黒矢印は潤滑を終えて油溜り部２２へ戻る潤滑油の流れを示している。軸受の回転に伴って、下部では油溜り部２２内の潤滑油が外輪４または外輪間座に設けられた給油穴および両端側から転動体に向かって流入する。この潤滑油は回転する内輪２、転動体６、保持器８によって上方に運ばれ、上部では重力と遠心力の作用で両端側に流出するとともに油溜り部２２に向かって落下する。
【００１９】
ここで再び図１を参照すると、符合４２はフィルターシールを指している。フィルターシール４２は、図面では簡略化してあるが、ポリエステル繊維をからみ合わせて均一な厚さにしたオイルフィルターとそれを保持する部品から構成されている。潤滑を終えて油溜り部２２へ戻ってきた汚れた潤滑油は、オイルフィルターを通過することによってろ過され、軸受内部にはゴミの少ない清浄化された潤滑油が供給される。
【００２０】
この実施の形態では油溜り部２２に単一のフィルターシール４２を配置してある。その位置は、潤滑油の循環経路の途中で、かつ、油溜り部２２からの流出口２８の上流側である。図１に示す鉄道車両車軸用軸受では、前蓋３０によって比較的大きな容積の予備室３４が形成されているため、流れに対する抵抗の加減で、
油溜り部２２の潤滑油の大部分は予備室３４側に向かって移動する傾向にある。その結果、図２中白抜き矢印で示すように一方向への潤滑油の流れが形成される。この場合、油溜り部２２からの流出口２８は、油溜り部２２の図１における左側端部付近となる。したがって、フィルターシール４２を配置すべき位置は、図示するように油溜り部２２の左側端部寄りとなる。
【００２１】
図２および図３に示すように、潤滑油が油溜り部の両側から流入して中央の流出口から出て行くといった潤滑油の循環経路が形成される場合には、油溜り部２２内の、流出口の上流側に二個のフィルターシール（破線で示す）を配置するのが好ましい。
【００２２】
【発明の効果】
本発明によれば、摩耗粉等が軸受やシールを傷付けないので、軸受、シールの寿命が延びる。その結果、車両故障の原因が軽減され、鉄道車両車軸軸受の定期点検の間隔を延長することができる。
【図面の簡単な説明】
【図１】本発明の実施の形態を示す鉄道車両車軸用軸受の縦断面図である。
【図２】円筒ころ軸受を用いた鉄道車両車軸用軸受における潤滑油の流れを説明するための縦断面図である。
【図３】円すいころ軸受を用いた鉄道車両車軸用軸受における潤滑油の流れを説明するための縦断面図である。
【符号の説明】
１ 鉄道車両車軸用軸受
２ 内輪
４ 外輪
６ 転動体
８ 保持器
１０ 車軸
１２ スリンガ
１４ ねじ部
１６ ナット
１８ ラビリンスシール
２０ 軸箱
２２ 油溜り部
２４ 貫通穴
２６ 磁石栓
２８ 流出口
３０ 前蓋
３２ 仕切り壁
３４ 予備室
３６ 後蓋
３８ オイルシール
４０ 仕切り板
４２ オイルフィルター[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a railway vehicle axle bearing, and more particularly, to a method in which wear powder and the like mixed in lubricating oil are trapped in an oil reservoir.
[0002]
[Prior art]
A railway vehicle axle bearing is a bearing designed and manufactured for a railway vehicle axle, and a double-row cylindrical roller bearing (see FIG. 2) or a double-row tapered roller bearing (see FIG. 3) is used.
[0003]
In a rolling bearing, it is known to provide filter seals on both sides of the bearing in order to prevent foreign matters mixed in lubricating oil from entering the inside of the bearing (Patent Document 1).
[0004]
[Patent Document 1]
Japanese Utility Model Registration No. 2546456 (Paragraph No. 0003, FIG. 5)
[0005]
[Problems to be solved by the invention]
There is an oil sump in the axle box, and the lubricating oil that has finished lubricating the inside of the bearing once returns to the oil sump and then flows out again toward the inside of the bearing. Iron powder floating substances such as bearing wear powder are mixed in the lubricating oil. Therefore, when the lubricating oil mixed with wear powder or the like reaches the raceway surface or the seal lip, it causes damage to the bearing and the seal.
[0006]
An object of the present invention is to reduce damage to bearings and seals caused by wear powder and the like mixed in lubricating oil.
[0007]
[Means for Solving the Problems]
The present invention takes into account the behavior of lubricating oil inside a railway vehicle axle bearing, and arranges a filter seal to collect iron powder such as abrasion powder, thereby reducing damage to the bearing and the seal. Things.
[0008]
The invention according to claim 1 is a railway vehicle axle bearing for rotatably supporting an axle of a railway vehicle, comprising: an inner ring fitted to an axle; an outer ring fitted to an axle box; A rolling element rotatably interposed between the bearing and the outer raceway, and a retainer for holding the rolling elements at equal intervals, and a filter seal provided in the middle of the lubricating oil circulation path. And
[0009]
According to a second aspect of the present invention, in the bearing for a railway vehicle axle of the first aspect, a filter seal is provided in an oil reservoir inside the axle box.
[0010]
According to a third aspect of the present invention, in the bearing for a railway vehicle axle according to the second aspect, a filter seal is disposed upstream of the lubricating oil outlet in the oil reservoir.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0012]
First, the configuration of a railway vehicle axle bearing using a double-row tapered roller bearing will be described with reference to FIG. The railcar axle bearing 1 is provided with a pair of inner races 2 adjacent in the axial direction, a double-row outer race 4 having a double-row raceway, and a rollingly interposed raceway between the raceway of the inner race 2 and the raceway of the outer race 4. The main components are a double row of rolling elements (here, tapered rollers) 6 and a pair of retainers 8 for holding the rolling elements 6 of each row at equal intervals in the circumferential direction.
[0013]
The inner ring 2 is fitted to the end of the axle 10, and is positioned in the axial direction by a slinger 12 in contact with the shoulder of the axle 10 and a nut 16 screwed into a screw portion 14 formed at the end of the axle 10. Is fixed. The outer ring 4 is fitted to an axle box 20, and the axle box 20 is fixed to a bogie (not shown). Therefore, the axle 10 is rotatably supported by the railcar axle bearing 1.
[0014]
An oil reservoir 22 is provided inside the axle box 20, and lubricating oil is generally stored such that the oil level is located near the pitch diameter of the rolling elements 6. During operation, the lubricating oil is splashed with the rotation of the bearing, and oil lubrication is performed. A through hole 24 communicating with the oil reservoir 22 is provided, and a magnet plug 26 is attached to the through hole 24. This is for magnetically adsorbing abrasion powder and the like mixed in the lubricating oil in the oil reservoir 22.
[0015]
A front cover 30 is attached to an end of the axle box 20 on the outside of the vehicle (left side in FIG. 1), and a rear cover 36 is attached to an end on the inside of the vehicle (right side in FIG. 1). As shown, the front lid 30 covers the open end of the axle box 20 and the end of the axle 10 exposed from the open end. An annular partition wall 32 is formed on the inner periphery of the front lid 30. The partition wall 32 is partially notched at a lower portion, and a preliminary chamber 34 that stores the lubricating oil in communication with the oil reservoir 22 is formed.
[0016]
The labyrinth seal 18 is formed between the rear lid 36 and the slinger 12. Further, an oil seal 38 is fitted on the inner peripheral surface of the rear lid 36, and the seal lip is slidably contacted with the outer peripheral surface of the slinger 12. The oil seal 38 is made of, for example, a single lip using a spring and a metal ring, and any type specified in JIS B2402 such as a type in which the outer peripheral surface is covered with rubber. It is possible.
[0017]
A partition plate 40 is mounted on the oil seal 38. The partition plate 40 is an annular member made of, for example, an iron plate and having an L-shaped cross section. A cylindrical portion extending in the axial direction is fitted on the inner peripheral surface of the metal ring. The partition plate 40 corresponds to the partition wall 32 of the front lid 30 and defines a space (seal chamber) between the partition plate 40 and the oil seal, so that the circulating flow of the lubricating oil does not directly hit the oil seal 38, especially the seal lip. It acts as a kind of cushioning member. If the circulating flow of the lubricating oil directly hits the seal lip, there is a possibility that the lubricating oil leaks.
[0018]
When the behavior of the lubricating oil in the bearing during rotation of the bearing was confirmed, it was found that the lubricating oil flowed in the oil reservoir 22 in the axle box 20 as shown in FIGS. 2 and 3. FIG. 2 shows a longitudinal section of a railway vehicle axle bearing using a cylindrical roller bearing, and FIG. 3 shows a longitudinal section of a railway vehicle axle bearing using a tapered roller bearing. In each case, white arrows in the drawings indicate the flow of the lubricating oil from the oil reservoir 22, and black arrows indicate the flow of the lubricating oil returning to the oil reservoir 22 after the lubrication. With the rotation of the bearing, the lubricating oil in the oil reservoir 22 flows into the rolling element from the oil supply hole provided on the outer ring 4 or the outer ring spacer and both ends at the lower portion. The lubricating oil is carried upward by the rotating inner ring 2, the rolling elements 6, and the retainer 8, flows out to both ends by the action of gravity and centrifugal force at the upper part, and falls toward the oil reservoir 22.
[0019]
Referring again to FIG. 1, reference numeral 42 indicates a filter seal. Although simplified in the drawing, the filter seal 42 is composed of an oil filter having a uniform thickness formed by entanglement of polyester fibers and a component for holding the oil filter. The contaminated lubricating oil that has returned to the oil reservoir 22 after the lubrication is filtered by passing through an oil filter, and a clean lubricating oil with less dust is supplied to the inside of the bearing.
[0020]
In this embodiment, a single filter seal 42 is disposed in the oil reservoir 22. The position is in the middle of the lubricating oil circulation path and on the upstream side of the outlet 28 from the oil reservoir 22. In the railcar axle bearing shown in FIG. 1, the spare space 34 having a relatively large volume is formed by the front lid 30.
Most of the lubricating oil in the oil reservoir 22 tends to move toward the preliminary chamber 34 side. As a result, a flow of the lubricating oil is formed in one direction as shown by a white arrow in FIG. In this case, the outlet 28 from the oil reservoir 22 is near the left end of the oil reservoir 22 in FIG. Therefore, the position where the filter seal 42 is to be arranged is closer to the left end of the oil reservoir 22 as shown in the figure.
[0021]
As shown in FIGS. 2 and 3, when a lubricating oil circulation path is formed in which the lubricating oil flows in from both sides of the oil reservoir and exits from the central outlet, the lubricating oil in the oil reservoir 22 is formed. Preferably, two filter seals (indicated by dashed lines) are arranged upstream of the outlet.
[0022]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, since abrasion powder etc. do not damage a bearing and a seal, the life of a bearing and a seal is extended. As a result, the cause of the vehicle failure is reduced, and the interval of the periodic inspection of the railcar axle bearing can be extended.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a railway vehicle axle bearing showing an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view for explaining the flow of lubricating oil in a railway vehicle axle bearing using a cylindrical roller bearing.
FIG. 3 is a longitudinal sectional view for explaining the flow of lubricating oil in a railway vehicle axle bearing using a tapered roller bearing.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Railroad vehicle axle bearing 2 Inner ring 4 Outer ring 6 Rolling element 8 Cage 10 Axle 12 Slinger 14 Screw 16 Nut 18 Labyrinth seal 20 Axle box 22 Oil reservoir 24 Through hole 26 Magnet plug 28 Outlet 30 Front cover 32 Partition wall 34 Preparatory chamber 36 Rear lid 38 Oil seal 40 Partition plate 42 Oil filter

Claims (3)

鉄道車両の車軸を回転自在に支持するための鉄道車両車軸用軸受であって、車軸に嵌合させた内輪と、軸箱に嵌合させた外輪と、内輪の軌道と外輪の軌道との間に転動自在に介在する転動体と、転動体を等間隔に保持するための保持器とを具備し、潤滑油循環経路の途中にフィルターシールを設けたことを特徴とする鉄道車両車軸用軸受。A railway vehicle axle bearing for rotatably supporting an axle of a railway vehicle, wherein a bearing between an inner ring fitted to the axle, an outer ring fitted to the axle box, and a raceway of the inner race and an outer race. A rolling bearing axle, comprising: a rolling element rotatably interposed in a rolling element; and a retainer for holding the rolling elements at equal intervals, and a filter seal provided in the middle of a lubricating oil circulation path. . フィルターシールを軸箱内部の油溜り部に設けたことを特徴とする請求項１の鉄道車両車軸用軸受。The bearing for a railway vehicle axle according to claim 1, wherein the filter seal is provided in an oil reservoir inside the axle box. 油溜り部内の、潤滑油流出口の上流側にフィルターシールを配置したことを特徴とする請求項２の鉄道車両車軸用軸受。The axle bearing for a railway vehicle according to claim 2, wherein a filter seal is arranged in the oil reservoir portion on the upstream side of the lubricating oil outlet.
JP2002332363A 2002-11-15 2002-11-15 Railway axlebox bearing Pending JP2004162883A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002332363A JP2004162883A (en) 2002-11-15 2002-11-15 Railway axlebox bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002332363A JP2004162883A (en) 2002-11-15 2002-11-15 Railway axlebox bearing

Publications (1)

Publication Number Publication Date
JP2004162883A true JP2004162883A (en) 2004-06-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010018630A1 (en) * 2008-08-14 2010-02-18 三菱重工業株式会社 Wind driven electric power generator
JP2010101362A (en) * 2008-10-22 2010-05-06 Nachi Fujikoshi Corp Bearing device for railroad vehicle
JP2012189101A (en) * 2011-03-09 2012-10-04 Ntn Corp Rolling bearing with filter
JP7444551B2 (en) 2019-05-31 2024-03-06 ナブテスコ株式会社 Bearing assembly structure of rotating equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010018630A1 (en) * 2008-08-14 2010-02-18 三菱重工業株式会社 Wind driven electric power generator
JPWO2010018630A1 (en) * 2008-08-14 2012-01-26 三菱重工業株式会社 Wind power generator
JP2010101362A (en) * 2008-10-22 2010-05-06 Nachi Fujikoshi Corp Bearing device for railroad vehicle
JP2012189101A (en) * 2011-03-09 2012-10-04 Ntn Corp Rolling bearing with filter
JP7444551B2 (en) 2019-05-31 2024-03-06 ナブテスコ株式会社 Bearing assembly structure of rotating equipment

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