JPH048917A - Bearing device - Google Patents
Bearing deviceInfo
- Publication number
- JPH048917A JPH048917A JP10880190A JP10880190A JPH048917A JP H048917 A JPH048917 A JP H048917A JP 10880190 A JP10880190 A JP 10880190A JP 10880190 A JP10880190 A JP 10880190A JP H048917 A JPH048917 A JP H048917A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- bearing
- lubricating oil
- disc
- rotating shaft
- 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
- 239000003921 oil Substances 0.000 claims abstract description 55
- 239000010687 lubricating oil Substances 0.000 claims abstract description 29
- 238000005096 rolling process Methods 0.000 claims abstract description 29
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000007790 scraping Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
(産業上の利用分野)
本発明は1時にオイルディスクで潤滑油を汲みあげて軸
受を潤滑する軸受装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a bearing device that lubricates a bearing by pumping up lubricating oil with an oil disk.
(従来の技術)
軸受の自己給油手段の一つとして、従来から円板状のオ
イルディスクが広く用いられている。(Prior Art) Disc-shaped oil discs have been widely used as one of self-lubricating means for bearings.
このオイルディスクは、オイルリングと異なり。This oil disc is different from an oil ring.
軸と一体で回転するので、給油の信頼性という点では極
めて優れたものである。Since it rotates together with the shaft, it is extremely reliable in terms of oil supply reliability.
しかしながら、その反面、オイルディスクがある周速を
超えると、潤滑油が飛散して、所望の油量が得られる自
己給油の適用範囲が狭くなる欠点がある。また、従来か
ら、この飛散油をできるだけオイルディスク上方に上げ
るため、オイルディスクの外周部を包む導油カバーを設
けるものが種々提案されているが、汲み上げ量の増加率
はせいぜい1〜2割程度にとどまり、満足するものでは
なかった。However, on the other hand, when the circumferential speed of the oil disk exceeds a certain limit, the lubricating oil scatters and the range of application of self-lubrication in which a desired amount of oil can be obtained is narrowed. In addition, in order to raise this scattered oil as high as possible above the oil disk, various proposals have been made to install an oil guiding cover that wraps around the outer periphery of the oil disk, but the rate of increase in the amount of pumped up is only about 10 to 20% at most. However, it remained unsatisfactory.
一方、新たに回転軸の外周に複数個の転動体を配設し、
軸の回転で転動体を自転させながら公転させることで、
軸受箱の潤滑油を汲みあげるようにした提案もある。(
例えば、特公昭62−52198号公報参照)。On the other hand, multiple rolling elements are newly arranged around the outer circumference of the rotating shaft,
By rotating the rolling elements while rotating the shaft,
There is also a proposal to pump lubricating oil from the bearing box. (
For example, see Japanese Patent Publication No. 62-52198).
この構成によると1回転軸が高速回転しても、転動体の
公転速度が減速されるので、潤滑油の汲み上げ量は増え
る。With this configuration, even if the shaft rotates at a high speed, the revolution speed of the rolling elements is reduced, so the amount of lubricating oil pumped up increases.
(発明が解決しようとする課題)
ところが、このように構成された軸受装置では、潤滑油
の汲み上げは、隣接する転動体の間隔を保ち転動体を両
側から摺動可能に包む保持器と転動体とに頼っているの
で、転動体による油汲み上げ量は転動体自体の自転(周
速)による油飛散と転動体と保持器による接触で油がか
き落され、実際は転動体による油かき上げは期待できず
、保持器による汲みあげに依存している。(Problem to be Solved by the Invention) However, in a bearing device configured in this manner, lubricating oil is pumped up by a retainer that maintains an interval between adjacent rolling elements and slidably envelops the rolling elements from both sides. Therefore, the amount of oil pumped up by the rolling elements is scraped off by the oil scattering due to the rotation (peripheral speed) of the rolling elements themselves and the contact between the rolling elements and the cage, and in reality, the amount of oil pumped up by the rolling elements is expected. It is not possible to do so and relies on pumping with a cage.
しかもこの保持器は、自転する転動体の間隔を保ち、か
つ、転動体と摺動可能としなければならず、形状が複雑
で、保持器で汲み上げられた潤滑油をかき落し軸受に有
効に給油するには、複雑かつ困難な構成が更に別に必要
となる。Moreover, this cage must maintain the distance between the rotating rolling elements and be able to slide on the rolling elements.The cage has a complicated shape, scraping off the lubricating oil pumped up by the cage and effectively refueling the bearings. In order to do so, an additional complicated and difficult configuration is required.
実際、既に提案された軸受装置では、潤滑油をかき落し
軸受に給油する手段にはなにも触れていない。In fact, the bearing devices that have already been proposed do not mention any means for scraping off lubricating oil and supplying oil to the bearing.
そこで、本発明の目的は、オイルディスクで汲みあばた
潤滑油を確実に効率よく軸受に供給することのできる軸
受装置を得ることである。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a bearing device that can reliably and efficiently supply lubricating oil to a bearing by pumping it with an oil disk.
(課題を解決するための手段)
本発明は、回転軸を支承する軸受に軸受箱の油溜の潤滑
油をオイルディスクで供給する軸受装置において、オイ
ルディスクを1回転軸の外周に配設された複数の転動体
と、この転動体を回転軸の外周に保持する環状の保持部
と、この保持部と係合し回転軸に嵌合されたディスクで
構成し、軸受に基端が固定されディスクの外周表面を覆
った他端でディスク表面にかきあげられた潤滑油を軸受
に供給する油かきを設けたことを特徴とする軸受装置で
ある。(Means for Solving the Problems) The present invention provides a bearing device that supplies lubricating oil from an oil reservoir in a bearing box to a bearing that supports a rotating shaft using an oil disk, in which an oil disk is disposed on the outer periphery of the rotating shaft. It consists of a plurality of rolling elements, an annular holding part that holds the rolling elements on the outer periphery of the rotating shaft, and a disk that engages with the holding part and is fitted onto the rotating shaft, and the base end is fixed to the bearing. This bearing device is characterized in that an oil scraper is provided at the other end covering the outer circumferential surface of the disc for supplying lubricating oil scraped up on the disc surface to the bearing.
(作 用)
この結果、ディスクの回転数は回転軸の外周で自転する
転動体の公転に従って減速されて、油溜の潤滑油はディ
スクの外周で大量にかきあげられ、この潤滑油は、ディ
スク外周に設けられた油かきて効率よく軸受に供給され
ることとなる。(Function) As a result, the rotational speed of the disk is reduced in accordance with the revolution of the rolling elements that rotate on the outer periphery of the rotating shaft, and a large amount of lubricating oil in the oil sump is scraped up on the outer periphery of the disk. The oil is efficiently supplied to the bearing by the oil spool installed in the holder.
(実施例)
以下、本発明の軸受装置の一実施例を図面を用いて説明
する。(Example) An example of a bearing device of the present invention will be described below with reference to the drawings.
第1図は自己給油装置を具備した軸受装置であって、回
転軸1を支承するすベリ軸受2の一方にオイルディスク
3を軸装し、これらの部材を包囲するとともに、すべり
軸受2は軸受箱4で支持されている。Fig. 1 shows a bearing device equipped with a self-lubricating device, in which an oil disc 3 is mounted on one side of a sliding bearing 2 that supports a rotating shaft 1, surrounding these members, and the sliding bearing 2 is a bearing. It is supported by box 4.
オイルディスク3の構成は後述するが、このオイルディ
スク3が回転軸1とともに回転し、軸受箱4の下部に貯
えられた潤滑油5を汲みあげ、すベリ軸受2の上部に取
付けられた油かき6で軸受2側へ導いて、軸受2の給油
ロアに流入させるものである。The structure of the oil disc 3 will be described later, but this oil disc 3 rotates together with the rotating shaft 1, pumps up lubricating oil 5 stored in the lower part of the bearing box 4, and pumps up the lubricating oil 5 stored in the lower part of the bearing box 4. 6 to the bearing 2 side and flow into the oil supply lower of the bearing 2.
次に、第2図で、オイルディスク3について説明する0
回転軸1の一部には突起したつば部8が形成され、この
つば部8の外周には、環状の内軸9が嵌着されている。Next, referring to FIG. 2, the oil disc 3 will be explained.
A protruding flange 8 is formed on a part of the rotating shaft 1, and an annular inner shaft 9 is fitted onto the outer periphery of the flange 8.
この内軸9の外周には、凹状の軌道9aが形成され、内
輪9の外側には、環状層10を介して外軸14が設けら
れ、この外輪14の内周にも凹状の軌道14aが形成し
である。環状層10は、内・外輪9,14の間によって
、軌道に嵌め込まれ、周方向に転勤可能な球体からなる
複数の転動体11と、隣接するこれら転動体11の間隔
を保ち。A concave raceway 9a is formed on the outer periphery of the inner shaft 9, an outer shaft 14 is provided on the outside of the inner ring 9 via an annular layer 10, and a concave raceway 14a is also formed on the inner periphery of the outer ring 14. It is formed. The annular layer 10 is fitted into the raceway between the inner and outer rings 9 and 14, and maintains a distance between a plurality of rolling elements 11 made of spheres that can be moved in the circumferential direction and these adjacent rolling elements 11.
転動体11を両側で摺動可能に包む保持器12と、この
保持器12と一体化され保持器12とともに回転可能な
外周平滑な環状のディスク13から構成されている。It consists of a cage 12 that slidably encloses the rolling elements 11 on both sides, and an annular disk 13 with a smooth outer periphery that is integrated with the cage 12 and can rotate together with the cage 12.
また、外輪14の上部には、溝が設けられていて。Further, a groove is provided in the upper part of the outer ring 14.
油かき6から突起したビン16が挿入され外軸14の回
転が防がれている。A bottle 16 protruding from the oil paddle 6 is inserted to prevent rotation of the outer shaft 14.
なお、このように構成されたオイルディスク3と潤滑油
5の浸漬位置は、ディスク13の最下部の外周面より上
方となるように油面OLを設定する。The immersion position of the oil disk 3 and the lubricating oil 5 configured in this way is such that the oil level OL is set above the outer peripheral surface of the lowermost portion of the disk 13.
次に、このように構成された軸受装置の作用を説明する
。Next, the operation of the bearing device configured in this way will be explained.
まず、回転軸1が回転すると、内軸9も同一回転速度で
回転し、この内軸9が回転すると、これに接している転
動体11は自転しながら軌道上を回転軸1より遅い回転
速度で公転する。転動体11の公転に伴ない、これに装
着された保持器12とディスク13も転動体11と同一
回転速度で公転する。この結果、その下部が潤滑油5に
浸漬されたディスク13は、回転1111の回転速度よ
り遅い速度で回転して油を汲み上げる。First, when the rotating shaft 1 rotates, the inner shaft 9 also rotates at the same rotational speed, and when the inner shaft 9 rotates, the rolling elements 11 in contact with it rotate on their orbits at a slower rotational speed than the rotating shaft 1. It revolves around. As the rolling element 11 revolves, the retainer 12 and disk 13 attached thereto also revolve at the same rotational speed as the rolling element 11. As a result, the disk 13 whose lower part is immersed in the lubricating oil 5 rotates at a speed slower than the rotational speed of the rotation 1111 and pumps up the oil.
この回転数は、従来から各部材の大きさで経験的に数式
化されているが、回転軸のほぼ40〜50%程度にでき
る。This rotational speed has conventionally been empirically formulated based on the size of each member, but it can be approximately 40 to 50% of the rotational axis.
次に、ディスク13でかき上げられた油は、ディスク1
3の上部にディスク外周と微小の隙間を介して設置され
た油かき6でかき落され、軸受2側へ確実に導かれる。Next, the oil scraped up by the disk 13 is transferred to the disk 1
The oil is scraped off by an oil scraper 6 installed on the top of the disk 3 with a small gap between it and the outer periphery of the disk, and is reliably guided to the bearing 2 side.
この油かきの基本構造は、従来の軸一体型オイルディス
ク方式のものと同一である。The basic structure of this oil paddle is the same as the conventional shaft-integrated oil disc type.
このように9本発明によれば、潤滑油をかき上げるディ
スク13は1回転軸1の回転速度より遅い速度で回転す
るので、低速領域での若干の使用不能範囲は公転の特性
上やむを得ないが、高速領域の適用範囲が増えるだけで
なく、オイルディスクから油かき落し手段が簡便かつ確
実にできるので、従来の転動体と保持器によるかき上げ
方式より給油量が増加し、使用範囲がさらに拡大し、潤
滑信頼性が向上する。According to the present invention, the disc 13 that scrapes up the lubricating oil rotates at a speed slower than the rotational speed of the shaft 1, so a certain range of unusability in the low speed region is unavoidable due to the characteristics of revolution. Not only does this increase the range of application in high-speed areas, but it also provides a simple and reliable means of scraping oil from the oil disk, which increases the amount of oil supplied compared to the conventional scraping method using rolling elements and a cage, further expanding the range of use. This improves lubrication reliability.
なお、上記実施例では9回転軸1のつば部8に内軸9を
嵌着した例で説明したが、つば部8と内軸9と一体であ
ってもよく、同様に外軸14と軸受箱4とも一体であっ
てもよい。In the above embodiment, an example was explained in which the inner shaft 9 was fitted to the collar 8 of the nine-rotation shaft 1, but the collar 8 and the inner shaft 9 may be integrated, and the outer shaft 14 and the bearing may be integrated. It may also be integrated with the box 4.
また、外軸14又は内軸9のいづれか一方の軌道(9a
又は13a)は省いて平滑に形成してもよく、溝の形状
も特に定めるものではない。Also, the orbit of either the outer shaft 14 or the inner shaft 9 (9a
Alternatively, 13a) may be omitted to form a smooth groove, and the shape of the groove is not particularly defined.
さらに転動体11は、球体に限らず1円柱状であっても
よい。Further, the rolling element 11 is not limited to a spherical body, and may be cylindrical.
以上、本発明によれば1回転軸を支承する軸受に軸受箱
の油溜の潤滑油をオイルディスクで供給する軸受装置に
おいて、オイルディスクを、回転軸の外周に配設された
複数の転動体と、この転動体を回転軸の外周に保持する
保持部と、この保持部に係合され回転軸に嵌挿されたデ
ィスクで構成し、軸受に基端が固定されディスクの外周
を覆つた他端でディスク表面にかき上げられた潤滑油を
軸受に供給する油かきを設けることで、油溜の潤滑油を
減速回転のディスクでかきあげ、このかきあげられた潤
滑油を油かきて軸受に供給したので、潤滑油を効率よく
軸受に供給することのできる軸受装置を得ることができ
る。As described above, according to the present invention, in a bearing device that supplies lubricating oil from an oil reservoir in a bearing box to a bearing that supports a rotating shaft, the oil disk is connected to a plurality of rolling elements disposed on the outer periphery of the rotating shaft. It consists of a holding part that holds this rolling element on the outer periphery of the rotating shaft, and a disk that is engaged with this holding part and inserted into the rotating shaft, and the base end is fixed to the bearing and covers the outer periphery of the disk. By installing an oil scraper at the end that supplies the lubricating oil that has been scraped up onto the disk surface to the bearing, the lubricating oil in the oil sump is scraped up by the disc that rotates at a reduced speed, and this scraped up lubricating oil is scraped up and supplied to the bearing. Therefore, it is possible to obtain a bearing device that can efficiently supply lubricating oil to the bearing.
第1図は本発明の軸受装置の一実施例を示す部分破断縦
断面図、第2図は第1図の部分詳細斜視図、第3図は本
発明の軸受装置の要部を示す拡大斜視図である。
1・・・回転軸 2・・・軸受3・・・オ
イルディスク 4・・・軸受箱6・・・油かき
11・・・転動体12・・・保持器
13・・・ディスク第1図
(8733) 代理人 弁理士 猪 股 祥 晃(は
が1名)第2図FIG. 1 is a partially broken vertical sectional view showing one embodiment of the bearing device of the present invention, FIG. 2 is a detailed perspective view of a portion of FIG. 1, and FIG. 3 is an enlarged perspective view showing the main parts of the bearing device of the present invention. It is a diagram. 1... Rotating shaft 2... Bearing 3... Oil disc 4... Bearing box 6... Oil paddle
11...Rolling element 12...Cage
13... Disc Figure 1 (8733) Agent Patent Attorney Yoshiaki Inomata (1 person) Figure 2
Claims (1)
ディスクで供給する軸受装置において、前記オイルディ
スクを、前記回転軸の外周に配設された複数の転動体と
、この転動体を前記回転軸の外周に保持する環状の保持
部と、この保持部に係合され前記回転軸に嵌挿されたデ
ィスクで構成し、前記軸受に基端が固定され前記ディス
クの外周表面を覆った他端で前記ディスク表面にかき上
げられた前記潤滑油を前記軸受に供給する油かきを設け
たことを特徴とする軸受装置。In a bearing device that supplies lubricating oil from an oil sump in a bearing box to a bearing that supports a rotating shaft using an oil disk, the oil disk is connected to a plurality of rolling elements disposed on the outer periphery of the rotating shaft, and the rolling elements are connected to each other. It consists of an annular holding part held on the outer periphery of the rotating shaft, and a disk that is engaged with the holding part and inserted into the rotating shaft, and the base end is fixed to the bearing and covers the outer peripheral surface of the disk. A bearing device characterized in that an oil paddle is provided at the other end to supply the lubricating oil scraped up onto the disk surface to the bearing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10880190A JPH048917A (en) | 1990-04-26 | 1990-04-26 | Bearing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10880190A JPH048917A (en) | 1990-04-26 | 1990-04-26 | Bearing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH048917A true JPH048917A (en) | 1992-01-13 |
Family
ID=14493828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10880190A Pending JPH048917A (en) | 1990-04-26 | 1990-04-26 | Bearing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH048917A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU187207U1 (en) * | 2018-04-09 | 2019-02-25 | Общество с ограниченной ответственностью "Уралэнергосервис" | SLIDING BEARING WITH RING CASE LUBRICATION |
-
1990
- 1990-04-26 JP JP10880190A patent/JPH048917A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU187207U1 (en) * | 2018-04-09 | 2019-02-25 | Общество с ограниченной ответственностью "Уралэнергосервис" | SLIDING BEARING WITH RING CASE LUBRICATION |
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