JPH0814370A - Wheel assembly - Google Patents
Wheel assemblyInfo
- Publication number
- JPH0814370A JPH0814370A JP6143454A JP14345494A JPH0814370A JP H0814370 A JPH0814370 A JP H0814370A JP 6143454 A JP6143454 A JP 6143454A JP 14345494 A JP14345494 A JP 14345494A JP H0814370 A JPH0814370 A JP H0814370A
- Authority
- JP
- Japan
- Prior art keywords
- wheel
- grease
- screw
- wheel assembly
- 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.)
- Withdrawn
Links
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- General Details Of Gearings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、軌条機械の車輪やクレ
ーン車輪等のように軸受（例えば、複列円錐ころ軸受）
を内蔵した車輪組立体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing (for example, double-row tapered roller bearing) such as a wheel of a railroad machine or a crane wheel.
Relates to a wheel assembly having a built-in.
【０００２】[0002]
【従来の技術】車輪の中央部に形成された車軸孔に嵌め
込まれた軸受を介して車軸が接続された構造の車輪組立
体が従来から知られている。このような車輪組立体の軸
受への給脂方法としては、一般に、車輪に軸受を組み込
む際に手でグリス等の油を塗りつける方法や、車輪のエ
ンドカバーと軸受とで形成される空間にグリス等を充填
する方法が多用されている。また、例えば複列円錐ころ
軸受型の軸受では内面から給脂できるように、この内面
に連通するグリス溝を車軸に形成し、グリス溝を経由し
て外部から定期的にグリスガンで補充する方法が採用さ
れているが、車輪が動くので連続的な自動給脂は不可能
である。一方、軸受が一定場所に固定されていて移動し
ない場合は、一般に自動給脂装置から導管や分配弁等を
経由して軸受外部ニップルから連続的に給脂する方法が
採用されており、このため、油切等の問題は起きにく
い。2. Description of the Related Art A wheel assembly having a structure in which an axle is connected via a bearing fitted in an axle hole formed in a central portion of a wheel has been conventionally known. As a method of lubricating the bearing of such a wheel assembly, generally, a method of manually applying oil such as grease when the bearing is installed in the wheel, or a grease formed in a space formed between the end cover of the wheel and the bearing is used. The method of filling etc. is widely used. Further, for example, in a double-row tapered roller bearing type bearing, a grease groove communicating with the inner surface is formed on the axle so that grease can be lubricated from the inner surface, and a grease gun is regularly replenished from the outside via the grease groove. Although adopted, continuous automatic lubrication is impossible because the wheels move. On the other hand, when the bearing is fixed at a fixed place and does not move, a method is generally adopted in which the grease is continuously fed from the external nipple of the bearing via an automatic lubrication device via a conduit or distribution valve. , Problems such as running out of oil are unlikely to occur.
【０００３】[0003]
【発明が解決しようとする課題】従来のように、車輪に
軸受を組み込む際の給脂や定期的に給脂する方法では、
軸受の内部まで十分にグリスが回らないおそれがある。
このため、軸受に焼付や破損等のトラブルが発生し、補
修コストが高くなったり、トラブル復旧に多大の手間を
要することがある。また、軸受とエンドカバーとで形成
される空間にグリスを充填しておいても軸受に接触する
部分でしかグリスが消費されず、この結果、軸受に接触
していないグリスはそのまま残留し有効に使われない状
態になる。また、外部からグリスガンで定期的に給脂す
る方法では、給脂周期が長すぎるとグリス溝でグリスが
固着して圧送できなくなり給脂不良に陥ることがある。SUMMARY OF THE INVENTION As in the prior art, in the method of greasing when assembling a bearing in a wheel or a method of periodically greasing,
There is a risk that the grease will not be able to fully reach the inside of the bearing.
For this reason, troubles such as seizure and breakage may occur in the bearing, which may increase repair costs and require a great deal of trouble to recover the trouble. Further, even if the space formed by the bearing and the end cover is filled with grease, the grease is consumed only in the portion that comes into contact with the bearing, and as a result, the grease that has not come into contact with the bearing remains and remains effective. It will not be used. Further, in the method of regularly lubricating with a grease gun from the outside, if the lubrication cycle is too long, the grease may stick in the grease groove and cannot be pumped, resulting in poor lubrication.
【０００４】本発明は、上記事情に鑑み、定期的な給脂
であっても軸受の潤滑油不足を防止できる車輪組立体を
提供することを目的とする。In view of the above circumstances, it is an object of the present invention to provide a wheel assembly capable of preventing a lack of lubricating oil in a bearing even with regular lubrication.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
の本発明の車輪組立体は、給脂孔を有する車軸の端部に
嵌め込まれた車輪軸受を介して該端部に車輪が嵌め込ま
れた車輪組立体において、前記端部を覆って前記車輪に
取り付けられ、前記車輪軸受に給脂される油を密封する
車輪エンドカバーと、前記給脂孔の開口に向き合って前
記車輪エンドカバーに取り付けられ、前記油を前記給脂
孔に圧送するスクリュとを備えたことを特徴とするもの
である。The wheel assembly of the present invention for achieving the above object has a wheel fitted to an end of an axle having a greasing hole via a wheel bearing fitted to the end. In the wheel assembly described above, a wheel end cover that covers the end portion and is attached to the wheel to seal oil supplied to the wheel bearing, and a wheel end cover that faces the opening of the greasing hole and is attached to the wheel end cover. And a screw that pressure-feeds the oil to the greasing hole.
【０００６】ここで、車軸の開口に連通すると共にスク
リュの先端部を取り囲む筒体を車輪組立体に備えること
が好ましい。また、スクリュの先端部を開口に挿入する
ことが好ましい。さらに、車軸の給脂孔に油の逆流を防
止する逆流防止弁を取り付けることが好ましい。[0006] Here, it is preferable that the wheel assembly is provided with a cylindrical body which communicates with the opening of the axle and surrounds the tip of the screw. It is also preferable to insert the tip of the screw into the opening. Further, it is preferable to attach a check valve for preventing oil backflow to the greasing hole of the axle.
【０００７】さらにまた、スクリュを車軸に取り付ける
構成にしてもよい。Furthermore, the screw may be attached to the axle.
【０００８】[0008]
【作用】本発明の車輪組立体では、車輪の回転に伴って
車輪エンドカバーが回転してスクリュが回転する。従っ
て、車輪エンドカバーでグリス等の油を密封しておけ
ば、車輪の回転に伴ってスクリュが回転して車軸の給脂
孔にグリスが圧送されるので車輪軸受に油が供給され
る。このため、自動的かつ連続的に車輪軸受に給脂で
き、潤滑不良を起こすことなく安定な機器稼働が可能と
なる。In the wheel assembly of the present invention, the wheel end cover rotates as the wheel rotates and the screw rotates. Therefore, if oil such as grease is sealed by the wheel end cover, the screw rotates as the wheel rotates and the grease is pumped to the greasing hole of the axle, so that the oil is supplied to the wheel bearing. Therefore, the wheel bearings can be automatically and continuously lubricated, and stable equipment operation can be performed without causing poor lubrication.
【０００９】また、車輪の回転数がグリス圧送量に比例
するため、低速のときは微量、高速のときは多量のグリ
スが供給され、車輪が停止中はグリスは供給されない。
この結果、運転状態に適合した供給量が自動的に得られ
ることになる。尚、グリスの補充は従来通り、定期的に
車輪エンドカバーの表面に設けられたグリスニップルか
ら車輪軸受と車輪エンドカバーとの間に充填する。Further, since the rotational speed of the wheel is proportional to the amount of grease pumped, a small amount of grease is supplied at low speed, a large amount of grease is supplied at high speed, and no grease is supplied when the wheel is stopped.
As a result, the supply amount suitable for the operating condition is automatically obtained. In addition, as in the conventional case, the grease is replenished periodically between the wheel bearing and the wheel end cover from a grease nipple provided on the surface of the wheel end cover.
【００１０】ここで、車軸の開口に連通すると共にスク
リュの先端部を取り囲む筒体を車輪組立体に備えた構造
や、スクリュの先端部を開口に挿入した構造にした場合
は、グリスを給脂孔に一層効率よく圧送できる。また、
車軸の給脂孔に油の逆流を防止する逆流防止弁を取り付
けた場合は、車輪が逆回転しても給脂不良を防止でき
る。Here, in the case where the wheel assembly is provided with a tubular body that communicates with the opening of the axle and surrounds the tip of the screw, or the tip of the screw is inserted into the opening, grease is lubricated. It can be more efficiently pumped to the holes. Also,
When a check valve for preventing backflow of oil is attached to the greasing hole of the axle, the greasing failure can be prevented even if the wheel rotates in the reverse direction.
【００１１】[0011]
【実施例】以下、図面を参照して本発明の車輪組立体の
実施例を説明する。図１は車輪組立体の第１実施例を示
す断面図、図２はスクリュを拡大して示す斜視図であ
る。車輪組立体１０は、中央部に車輪孔１２が形成され
た車輪１４と、車輪孔１２に嵌め込まれた複列円錐ころ
軸受型の車輪軸受１６と、端部１８ａが車輪軸受１６に
嵌め込まれた車軸１８とを備えて構成されている。車輪
軸受１６には給脂口２０が形成されており、この給脂口
２０を経由してグリスが摺動面２２に供給される。ま
た、車軸１８には、端部１８ａの端面に形成された開口
２４と車輪軸受１６の給脂口２０とに連通する給脂孔２
６が形成されている。さらに車軸１８には、車輪軸受１
６を押えるエンドプレート２８がボルト２８ａで取り付
けられている。このエンドプレート２８の中央部には、
スクリュ３０の先端部を取り囲む円筒体３２が開口２４
に連通して形成されており、この円筒体３２によりスク
リューケーシングが構成されている。一方、車輪１４に
は、端部１８ａの端面を覆って車輪エンドカバー３４が
ボルト３４ａで取り付けられている。この車輪エンドカ
バー３４とエンドプレート２８とで囲まれる空間には、
グリス３６が充満され密封されている。また、車輪エン
ドカバー３４の内面の中央部には、車軸１８の中心軸の
延長線上に相当する位置に、スクリュ軸３８とこのスク
リュ軸３８に溶接されたスクリュ羽根４０とからなるス
クリュ３０が面板４２を介して取り付けられている。
尚、車輪エンドカバー３４には、グリスニップル４４が
取り付けられている。Embodiments of the wheel assembly of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a first embodiment of a wheel assembly, and FIG. 2 is an enlarged perspective view showing a screw. The wheel assembly 10 has a wheel 14 having a wheel hole 12 formed in the center thereof, a double row tapered roller bearing type wheel bearing 16 fitted in the wheel hole 12, and an end portion 18 a fitted in the wheel bearing 16. And an axle 18. A greasing port 20 is formed in the wheel bearing 16, and grease is supplied to the sliding surface 22 via the greasing port 20. Further, the axle 18 has a greasing hole 2 communicating with an opening 24 formed in the end face of the end portion 18 a and a greasing port 20 of the wheel bearing 16.
6 is formed. Furthermore, the wheel bearing 1 is attached to the axle 18.
An end plate 28 for pressing 6 is attached with a bolt 28a. At the center of the end plate 28,
The cylindrical body 32 surrounding the tip of the screw 30 has an opening 24.
The cylindrical body 32 constitutes a screw casing. On the other hand, a wheel end cover 34 is attached to the wheel 14 with a bolt 34a so as to cover the end surface of the end portion 18a. In the space surrounded by the wheel end cover 34 and the end plate 28,
The grease 36 is filled and sealed. Further, in the center portion of the inner surface of the wheel end cover 34, a screw 30 including a screw shaft 38 and screw blades 40 welded to the screw shaft 38 is provided at a position corresponding to an extension line of the central axis of the axle 18. It is attached via 42.
A grease nipple 44 is attached to the wheel end cover 34.
【００１２】上記構成の車輪組立体１０では車輪１４が
回転するとスクリュ３０も回転する。スクリュ３０の周
囲にはグリス３６が充満されているため、スクリュ３０
の回転によりグリス３６が給脂孔２６に供給される。こ
こで、車軸１４は回転しないので、車軸１４の端面に取
り付けられた円筒体３２（スクリューケーシング）も回
転しない。従って、グリス３６がスクリュ３０の回転に
よって給脂孔２６に順次に効率よく押し込まれることに
なる。この結果、車輪１４の回転に伴ってスクリュ３０
が回転して車輪軸受１６へグリス３６が圧送されるの
で、車輪軸受１６は潤滑不良を起こすことなく安定な機
器稼働ができる。In the wheel assembly 10 having the above structure, when the wheel 14 rotates, the screw 30 also rotates. Since the screw 36 is filled with grease 36 around the screw 30,
The grease 36 is supplied to the greasing hole 26 by the rotation of. Here, since the axle 14 does not rotate, the cylindrical body 32 (screw casing) attached to the end surface of the axle 14 also does not rotate. Therefore, the grease 36 is sequentially and efficiently pushed into the greasing hole 26 by the rotation of the screw 30. As a result, as the wheels 14 rotate, the screw 30
Is rotated and the grease 36 is pressure-fed to the wheel bearing 16, so that the wheel bearing 16 can operate stably without causing poor lubrication.
【００１３】次に、図３に車輪エンドカバー３４にスク
リュ３０を取り付けた状態を拡大して示す。図３には、
面板４２を車輪エンドカバー３４の外面にボルト４６で
取り付け、面板４２の中央部に溶接でスクリュ軸３８を
取り付けたものが示されている。次に、図４を参照して
本発明の第２実施例を説明する。図４は回転ローラ付の
車輪組立体を示す断面図であり、図１に示す車輪組立体
と同じ要素は同じ符号で示す。Next, FIG. 3 shows an enlarged view of the state where the screw 30 is attached to the wheel end cover 34. In Figure 3,
The face plate 42 is attached to the outer surface of the wheel end cover 34 with a bolt 46, and the screw shaft 38 is attached to the center portion of the face plate 42 by welding. Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 4 is a sectional view showing a wheel assembly with a rotating roller, and the same elements as those of the wheel assembly shown in FIG. 1 are designated by the same reference numerals.
【００１４】焼結機のパレット台車等で使用されるタイ
プ、すなわち、スプロケット（図示せず）を回転ローラ
５２に噛み合わせて駆動するタイプの車輪組立体におい
ては、この回転ローラ５２の部分にも給脂が必要とな
る。この場合、ブッシュ５４と回転ローラ５２との間に
グリスが供給されるように、図１に示される給脂孔２６
を延長して車軸１８に形成する。これにより、ブッシュ
５４と回転ローラ５２の摺動面にグリスが供給されて回
転ローラ５２を円滑に潤滑できる。In a wheel assembly of a type used in a pallet truck or the like of a sintering machine, that is, a type in which a sprocket (not shown) is engaged with a rotating roller 52 to drive the wheel assembly, the rotating roller 52 is also included. Requires greasing. In this case, the greasing hole 26 shown in FIG. 1 is provided so that the grease is supplied between the bush 54 and the rotating roller 52.
Is extended to form the axle 18. Thereby, grease is supplied to the sliding surface of the bush 54 and the rotating roller 52, and the rotating roller 52 can be lubricated smoothly.
【００１５】以上説明した車輪組立体では、グリスニッ
プル４４から定期的に給脂を行うだけで、以後は連続的
に、かつ、車輪の回転数に応じてグリスを供給できる。
構造が極端に小さな車輪組立体には不向きであり、円筒
体（スクリューケーシング）３２（図１参照）の内径を
φ２０ｍｍ以上にできる程度の大きさの車輪組立体への
適用が望ましい。In the wheel assembly described above, grease can be supplied from the grease nipple 44 periodically, and thereafter, grease can be supplied continuously and in accordance with the number of rotations of the wheel.
It is not suitable for a wheel assembly having an extremely small structure, and is preferably applied to a wheel assembly having a size such that the inner diameter of the cylindrical body (screw casing) 32 (see FIG. 1) can be 20 mm or more.
【００１６】[0016]
【発明の効果】以上説明したように本発明の車輪組立体
によれば、車輪の回転に伴って車輪エンドカバーが回転
してスクリュが回転し、これにより車軸の給脂孔にグリ
スが圧送されるので車輪軸受に油が供給される。このた
め、自動的かつ連続的に車輪軸受に給脂でき、軸受焼付
等のトラブルを防止でき、潤滑不良を起こすことなく安
定な機器稼働が可能となる。また、車輪の回転数がその
ままグリス圧送量に比例するため、低速のときは微量、
高速のときは多量のグリスが供給され、車輪が停止中は
グリスは供給されない。この結果、運転状態に適合した
供給量が自動的に得られ、不要な給脂が無く経済的であ
る。また、グリスの補充は従来通り、定期的に車輪エン
ドカバー表面に設けられたグリスニップルから車輪軸受
と車輪エンドカバーとの間に充填するだけでよいので、
作業負荷の軽減にも寄与する。以上により、操業の安
定、保全性の向上の効果も期待できる。As described above, according to the wheel assembly of the present invention, the wheel end cover rotates in accordance with the rotation of the wheel and the screw rotates, whereby the grease is pumped to the greasing hole of the axle. Oil is supplied to the wheel bearings. Therefore, the wheel bearings can be lubricated automatically and continuously, troubles such as bearing seizures can be prevented, and stable equipment operation can be performed without causing poor lubrication. Also, since the rotation speed of the wheel is directly proportional to the amount of grease pumped, a small amount at low speeds,
A lot of grease is supplied at high speed, and no grease is supplied when the wheels are stopped. As a result, a supply amount suitable for the operating state is automatically obtained, and there is no unnecessary greasing, which is economical. Further, as is the case with conventional grease replenishment, it is sufficient to periodically fill the gap between the wheel bearing and the wheel end cover from the grease nipple provided on the surface of the wheel end cover.
It also contributes to the reduction of work load. From the above, the effects of stable operation and improved maintainability can be expected.
【図１】本発明の車輪組立体の第１実施例を示す断面図
である。FIG. 1 is a cross-sectional view showing a first embodiment of a wheel assembly of the present invention.
【図２】図１に示すスクリュを拡大して示す斜視図であ
る。FIG. 2 is an enlarged perspective view of the screw shown in FIG.
【図３】車輪エンドカバーにスクリュを取り付けた状態
を拡大して示す断面図である。FIG. 3 is an enlarged sectional view showing a state where a screw is attached to a wheel end cover.
【図４】本発明の第２実施例である回転ローラ付の車輪
組立体を示す断面図である。FIG. 4 is a sectional view showing a wheel assembly with rotating rollers according to a second embodiment of the present invention.
１０ 車輪組立体 １２ 車輪孔 １４ 車輪 １６ 車輪軸受 １８ 車軸 ２０ 給脂口 ２４ 開口 ２６ 給脂孔 ３０ スクリュ ３２ 円筒体（筒体） ３４ 車輪エンドカバー ３６ グリス ３８ スクリュ軸 ４０ スクリュ羽根 10 Wheel Assembly 12 Wheel Hole 14 Wheel 16 Wheel Bearing 18 Axle 20 Greasing Port 24 Opening 26 Greasing Hole 30 Screw 32 Cylindrical Body (Cylinder) 34 Wheel End Cover 36 Grease 38 Screw Shaft 40 Screw Blade
Claims (3)
た車輪軸受を介して該端部に車輪が嵌め込まれた車輪組
立体において、 前記端部を覆って前記車輪に取り付けられ、前記車輪軸
受に給脂される油を密封する車輪エンドカバーと、 前記給脂孔の開口に向き合って前記車輪エンドカバーに
取り付けられ、前記油を前記給脂孔に圧送するスクリュ
とを備えたことを特徴とする車輪組立体。1. A wheel assembly in which a wheel is fitted to an end of an axle having a greasing hole via a wheel bearing fitted to the end, the wheel assembly being attached to the wheel while covering the end, A wheel end cover that seals oil to be supplied to the wheel bearings; and a screw that is attached to the wheel end cover facing the opening of the greasing hole and that pumps the oil to the greasing hole. A characteristic wheel assembly.
記スクリュの先端部を取り囲む筒体を備えたことを特徴
とする請求項１記載の車輪組立体。2. The wheel assembly according to claim 1, further comprising a tubular body that communicates with the opening of the axle and surrounds a tip portion of the screw.
してなることを特徴とする請求項１記載の車輪組立体。3. The wheel assembly according to claim 1, wherein a tip portion of the screw is inserted into the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6143454A JPH0814370A (en) | 1994-06-24 | 1994-06-24 | Wheel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6143454A JPH0814370A (en) | 1994-06-24 | 1994-06-24 | Wheel assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0814370A true JPH0814370A (en) | 1996-01-16 |
Family
ID=15339084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6143454A Withdrawn JPH0814370A (en) | 1994-06-24 | 1994-06-24 | Wheel assembly |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0814370A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015137665A (en) * | 2014-01-21 | 2015-07-30 | 日本車輌製造株式会社 | Travel device of dolly |
| JP6004457B1 (en) * | 2015-09-16 | 2016-10-05 | ニチユ三菱フォークリフト株式会社 | FORKLIFT DRIVE DEVICE AND FORKLIFT |
| JP2020067231A (en) * | 2018-10-25 | 2020-04-30 | 日本製鉄株式会社 | Wheel shaft of pallet truck in sintering machine, and sintering machine |
-
1994
- 1994-06-24 JP JP6143454A patent/JPH0814370A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015137665A (en) * | 2014-01-21 | 2015-07-30 | 日本車輌製造株式会社 | Travel device of dolly |
| JP6004457B1 (en) * | 2015-09-16 | 2016-10-05 | ニチユ三菱フォークリフト株式会社 | FORKLIFT DRIVE DEVICE AND FORKLIFT |
| JP2020067231A (en) * | 2018-10-25 | 2020-04-30 | 日本製鉄株式会社 | Wheel shaft of pallet truck in sintering machine, and sintering machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20010904 |