JP2742690B2 - Lubrication system for sealed bearings for railway vehicles - Google Patents
Lubrication system for sealed bearings for railway vehiclesInfo
- Publication number
- JP2742690B2 JP2742690B2 JP63208092A JP20809288A JP2742690B2 JP 2742690 B2 JP2742690 B2 JP 2742690B2 JP 63208092 A JP63208092 A JP 63208092A JP 20809288 A JP20809288 A JP 20809288A JP 2742690 B2 JP2742690 B2 JP 2742690B2
- Authority
- JP
- Japan
- Prior art keywords
- axle box
- outer ring
- circumferential groove
- hole
- bearing
- 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.)
- Expired - Lifetime
Links
Landscapes
- Rolling Contact Bearings (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は鉄道車両の密封軸樹にグリースを給油する装
置に関する。Description: TECHNICAL FIELD The present invention relates to an apparatus for supplying grease to a sealed shaft tree of a railway vehicle.
（従来技術） 従来、鉄道車両用密封軸受の給油装置としては、実公
昭53−10646号公報に示すように前蓋にグリースニップ
ルを取り付けたり、オイルシール、後蓋、軸受外輪中央
から給油したりしていた。(Prior art) Conventionally, as a lubricating device for a sealed bearing for a railway vehicle, a grease nipple is attached to a front lid as shown in Japanese Utility Model Publication No. Sho 53-10646, and an oil seal, a rear lid, and lubrication from the center of a bearing outer ring are used. Was.
給油位置としては軸受外輪中央からが最良であるが、
従来は外輪中央にテーパーネジ加工し、グリース補給す
る時以外は栓をしておき、グリース補給時は栓を取りニ
ップル等をつけ直して補給していた。The best lubrication position is from the center of the bearing outer ring,
Conventionally, a taper screw was formed at the center of the outer ring, and the plug was kept closed except when replenishing grease. When replenishing grease, the plug was removed and nipples were reattached to replenish.
（発明が解決しようとする問題点） ところで上記軸受外輪中央からグリース補給する場合
は、軸受が車輪の内側にあると軸箱を取り外さないと作
業ができないので作業性が悪いという問題点があった。(Problems to be Solved by the Invention) When grease is supplied from the center of the bearing outer ring, the work cannot be performed unless the axle box is removed if the bearing is inside the wheel. .
（問題点を解決するための手段） 本発明は軸受が車輪の内側にある場合でも軸受を軸箱
に組み込まれたまゝで軸受の外輪中央から給油できるよ
うにすることを目的とし、軸箱内面に外輪を嵌合し、該
軸箱と外輪の対向面両方又は一方に円周溝を設け、軸箱
外部より該円周溝に通ずる通孔を軸箱に形成し、該通孔
外部にグリースニップルを取り付け、円周溝より外輪と
内輪の空隙部に通ずる通孔を放射状に外輪に形成し、前
記円周溝両側近傍対向面間に環状隙間を形成し、前記円
周溝両側端部に軸箱内周に接触するＯリングを装着した
ことを特徴とするものである。(Means for Solving the Problems) An object of the present invention is to make it possible to supply oil from the center of the outer ring of the bearing while the bearing is incorporated in the axle box even when the bearing is inside the wheel. A circumferential groove is provided on both or one of the opposing surfaces of the axle box and the outer ring, a through hole is formed in the axle box from outside the axle box to the circumferential groove, and grease is provided outside the through hole. Attach the nipple, radially form a through hole communicating with the gap between the outer ring and the inner ring from the circumferential groove in the outer ring, form an annular gap between the opposing surfaces near both sides of the circumferential groove, and at both ends of the circumferential groove An O-ring that comes into contact with the inner periphery of the axle box is mounted.
以下、図示した実施例に基づいて具体的に説明する。
１は鉄道車両の筒状軸箱で、その内面に密封軸受の外輪
２を嵌合している。３はコロ、４は内輪、５は車輪軸、
６は前蓋、７は後蓋、8,9はシール、10はベルトであ
る。軸箱１と外輪２の対向面中央部には円周溝11を設
け、軸箱１外部より該円周溝11に通ずる通孔12を軸箱１
の径方向に形成し、通孔12外部にグリースニップル13を
装着し円周溝11より外輪２と内輪３間の空隙部14に通ず
る複数個の通孔15を放射状に形成してある。前記円周溝
11両側近傍対向面間に環状隙間16,17を形成し、両端の
凹溝18,19に軸箱内周に接触し環状隙間16,17を密封する
Ｏリング20,21を装着してある。Hereinafter, a specific description will be given based on the illustrated embodiment.
Reference numeral 1 denotes a cylindrical axle box of a railway vehicle, and an outer ring 2 of a sealed bearing is fitted on an inner surface thereof. 3 is a roller, 4 is an inner ring, 5 is a wheel axle,
6 is a front lid, 7 is a rear lid, 8 and 9 are seals, and 10 is a belt. A circumferential groove 11 is provided at the center of the opposing surfaces of the axle box 1 and the outer ring 2, and a through-hole 12 communicating with the circumferential groove 11 from outside the axle box 1 is formed in the axle box 1.
A grease nipple 13 is attached to the outside of the through hole 12, and a plurality of through holes 15 are formed radially from the circumferential groove 11 to the gap 14 between the outer ring 2 and the inner ring 3. The circumferential groove
11 Annular gaps 16 and 17 are formed between the opposing surfaces near both sides, and O-rings 20 and 21 are attached to the concave grooves 18 and 19 at both ends to contact the inner periphery of the axle box and seal the annular gaps 16 and 17.
次に作用について説明する。軸箱を取り外すことなく
軸受を組み込んだまゝの状態でグリースニップル13内の
グリースは通孔12より円周溝11内に流入し、該円周溝11
に沿って流れ、更に放射状に形成されている通孔15より
外輪２と内輪３間の空隙部14に入り軸受内に供給され
る。又外部から外輪２の外周面と軸箱１内周面の接触す
べりによる摩耗粉が発生してもＯリング20,21で軸受内
に摩耗粉が浸入するのを防止する。Next, the operation will be described. The grease in the grease nipple 13 flows into the circumferential groove 11 from the through hole 12 in a state where the bearing is incorporated without removing the axle box, and the circumferential groove 11
, And further enters through a radially formed through hole 15 into a gap 14 between the outer ring 2 and the inner ring 3 to be supplied into the bearing. Even if abrasion powder is generated from the outside due to contact slip between the outer peripheral surface of the outer ring 2 and the inner peripheral surface of the axle box 1, the O-rings 20 and 21 prevent the abrasion powder from entering the bearing.
（効 果） 本発明によると、軸箱内面に外輪を嵌合し、該軸箱と
外輪の対向面両方又は一方に円周溝を設け、軸箱外部よ
り該円周溝に通ずる通孔を軸箱に形成し、該通孔外部に
グリースニップルを取り付け、円周溝より外輪と内輪の
空隙部に通ずる通孔を放射状に外輪に形成し、前記円周
溝両側近傍対向面間に環状隙間を形成し、前記円周溝両
側端部に軸箱内周に接触するＯリングを装着してあるの
で、軸受が車輪の内側にあって軸箱がとり外せない構造
であっても軸受を軸箱に組み込んだまゝで軸受の外輪中
央から給油することができ、又軸箱内周面と外輪外周面
の接触すべりによる摩耗粉が生じても軸受内への浸入を
防止することができる。(Effects) According to the present invention, an outer ring is fitted on the inner surface of the axle box, a circumferential groove is provided on both or one of the opposing surfaces of the axle box and the outer ring, and a through hole communicating from the outside of the axle box to the circumferential groove is provided. A grease nipple is attached to the outside of the through hole, and a through hole radially extending from the circumferential groove to the gap between the outer ring and the inner ring is formed in the outer ring radially. And O-rings that are in contact with the inner periphery of the axle box are attached to both ends of the circumferential groove. Therefore, even if the bearing is inside the wheel and the axle box cannot be removed, the Oil can be supplied from the center of the outer ring of the bearing as it is incorporated in the box, and even if abrasion powder is generated due to contact slip between the inner peripheral surface of the axle box and the outer peripheral surface of the outer ring, penetration into the bearing can be prevented.
第１図は本発明の一実施例正断面上半図である。 １……軸箱、２……外輪、３……コロ ４……内輪、５……車輪軸、11……円周溝 12……軸箱通孔、13……グリースニップル 14……外輪と内輪間の空隙部、15……外輪通孔 16,17……円周溝両側近傍環状隙間、20,21……Ｏリング FIG. 1 is an upper half view of a front section of an embodiment of the present invention. 1 ... Axle box, 2 ... Outer ring, 3 ... Roller 4 ... Inner ring, 5 ... Wheel shaft, 11 ... Circumferential groove 12 ... Axle box through hole, 13 ... Grease nipple 14 ... Outer ring Cavity between inner rings, 15 ... Outer ring through holes 16,17 ... Circular gap near both sides of circumferential groove, 20,21 ... O-ring
Claims (1)
対向面両方又は一方に円周溝を設け、軸箱外部より該円
周溝に通ずる通孔を軸箱に形成し、該通孔外部にグリー
スニップルを取り付け、円周溝より外輪と内輪の空隙部
に通ずる通孔を放射状に外輪に形成し、前記円周溝両側
近傍対向面間に環状隙間を形成し、前記円周溝両側端部
に軸箱内周に接触するＯリングを装着した鉄道車両用密
封軸受の給油装置。An outer ring is fitted on the inner surface of an axle box, and a circumferential groove is provided on both or one of the opposing surfaces of the axle box and the outer ring, and a through hole is formed in the axle box from the outside of the axle box to the circumferential groove. A grease nipple is attached to the outside of the through hole, a through hole radially extending from the circumferential groove to the gap between the outer ring and the inner ring is formed in the outer ring, and an annular gap is formed between the opposing surfaces on both sides of the circumferential groove. A lubricating device for a sealed bearing for a railway vehicle, wherein O-rings that are in contact with the inner periphery of the axle box are mounted at both ends of the circumferential groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63208092A JP2742690B2 (en) | 1988-08-24 | 1988-08-24 | Lubrication system for sealed bearings for railway vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63208092A JP2742690B2 (en) | 1988-08-24 | 1988-08-24 | Lubrication system for sealed bearings for railway vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0257468A JPH0257468A (en) | 1990-02-27 |
| JP2742690B2 true JP2742690B2 (en) | 1998-04-22 |
Family
ID=16550507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63208092A Expired - Lifetime JP2742690B2 (en) | 1988-08-24 | 1988-08-24 | Lubrication system for sealed bearings for railway vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2742690B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004011817A1 (en) | 2002-07-29 | 2004-02-05 | Nsk Ltd. | Rolling bearing, grease replenishing device, main shaft device, grease replenishing method, and grease replenishing program |
| JP2006289567A (en) * | 2005-04-13 | 2006-10-26 | Honda Motor Co Ltd | Machine tool |
| JP2011231862A (en) * | 2010-04-28 | 2011-11-17 | Ntn Corp | Rolling bearing |
| JP2015096737A (en) * | 2013-11-15 | 2015-05-21 | 株式会社明電舎 | Bearing unit |
| JP6520449B2 (en) * | 2015-06-19 | 2019-05-29 | スズキ株式会社 | Differential device |
-
1988
- 1988-08-24 JP JP63208092A patent/JP2742690B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0257468A (en) | 1990-02-27 |
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