JP2002339987A - Double row full type cylindrical roller bearing - Google Patents
Double row full type cylindrical roller bearingInfo
- Publication number
- JP2002339987A JP2002339987A JP2001151010A JP2001151010A JP2002339987A JP 2002339987 A JP2002339987 A JP 2002339987A JP 2001151010 A JP2001151010 A JP 2001151010A JP 2001151010 A JP2001151010 A JP 2001151010A JP 2002339987 A JP2002339987 A JP 2002339987A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- rollers
- outer ring
- cylindrical roller
- roller 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.)
- Pending
Links
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、複列総ころタイプ
の円筒ころ軸受に関する。The present invention relates to a double row full complement cylindrical roller bearing.
【０００２】[0002]
【従来の技術】従来、クレーンシーブ等に用いられる複
列円筒ころ軸受は、保持器を用いない総ころ型円筒ころ
軸受である。図４に示すように、外輪２１と内輪２２と
の間には多数の円筒ころ（以下、単にころという）２３
が配置され、円周方向に沿って保持されている。外輪２
１は２列のころ２３に共通の一体構成であり、外輪軸方
向の内側の鍔２７によりころ２３の軸方向の動きを規制
している。内輪２２は２列のころ２３の群にそれぞれ別
体で容易され、内輪軸方向の外側の鍔２６及び軸方向内
側の鍔２８によりころ２３の軸方向の動きを規制してい
る。2. Description of the Related Art Conventionally, double-row cylindrical roller bearings used for crane sheaves and the like are full-roller cylindrical roller bearings that do not use a cage. As shown in FIG. 4, a number of cylindrical rollers (hereinafter simply referred to as rollers) 23 are provided between the outer ring 21 and the inner ring 22.
Are arranged and held along the circumferential direction. Outer ring 2
Reference numeral 1 denotes an integral structure common to the two rows of rollers 23, and the axial movement of the rollers 23 is restricted by a flange 27 on the inner side in the axial direction of the outer ring. The inner ring 22 is formed as a group of two rows of rollers 23, each of which is separately provided, and the axial movement of the rollers 23 is regulated by an outer flange 26 in the axial direction of the inner ring and an inner flange 28 in the axial direction.
【０００３】また、外輪２１の内周面の軸方向外側寄り
には、溝２５が形成されており、この溝２５に止め輪２
４が装着されている。このように従来の複列円筒ころ軸
受２０は、止め輪２４を外輪２１に装着することで、外
輪２１、内輪２２、ころ２３のバレを防止している。A groove 25 is formed on the inner peripheral surface of the outer ring 21 on the outer side in the axial direction, and the groove 25 is formed in the groove 25.
4 is attached. As described above, in the conventional double-row cylindrical roller bearing 20, the retaining ring 24 is attached to the outer ring 21, thereby preventing the outer ring 21, the inner ring 22, and the rollers 23 from being deformed.
【０００４】軸受２０を組み付けるには、軸方向両端そ
れぞれに鍔２６，２８を有する内輪２２の軌道面にグリ
ースを塗布し、グリースの粘着力によりころ２３を軌道
面に付着させて図５に示すように内輪２２ところ２３と
を一体化する。そして、一体化した内輪２２ところ２３
とを外輪２１に挿入し、ころ２３を外輪２１の軸方向内
側の鍔２７に当接させた状態で止め輪２４を溝２５に装
着する。To assemble the bearing 20, grease is applied to the raceway surface of the inner race 22 having flanges 26 and 28 at both ends in the axial direction, and the rollers 23 are adhered to the raceway surface by the adhesive force of the grease, as shown in FIG. The inner ring 22 and 23 are integrated as described above. Then, the integrated inner ring 22 and 23
Are inserted into the outer race 21, and the retaining ring 24 is mounted in the groove 25 in a state where the rollers 23 are in contact with the flange 27 on the inner side in the axial direction of the outer race 21.
【０００５】[0005]
【発明が解決しようとする課題】ところで、クレーンシ
ーブ等で軸受２０を使用する場合、非常に粗雑な環境下
で用いられるため、軸受２０の内部に異物が侵入し易い
という問題がある。異物が侵入した場合、異物を除去し
たり、異物により軌道面に損傷がないかを点検すること
が好ましい。However, when the bearing 20 is used in a crane sheave or the like, there is a problem that foreign matter easily enters the inside of the bearing 20 because it is used in a very rough environment. When foreign matter has entered, it is preferable to remove the foreign matter or check whether the raceway surface is damaged by the foreign matter.
【０００６】しかし、前述のような従来の軸受２０の構
成では、使用していたものを分解した場合は、グリース
の粘着力が低下しており、止め輪２４を外し、外輪２１
から内輪２２を抜き出すと、外輪２１、内輪２２、ころ
２３がばれてしまい、これらを再び組み付けることが困
難である。However, in the structure of the conventional bearing 20 as described above, when the used one is disassembled, the adhesive force of the grease is reduced, so that the retaining ring 24 is removed and the outer ring 21 is removed.
When the inner ring 22 is extracted from the outer ring, the outer ring 21, the inner ring 22, and the rollers 23 are separated, and it is difficult to reassemble these.
【０００７】したがって、従来の軸受２０は、異物の除
去や、内輪の軌道面の摩耗点検等を実行し難いという問
題がある。[0007] Therefore, the conventional bearing 20 has a problem that it is difficult to remove foreign substances and check wear of the raceway surface of the inner race.
【０００８】本発明の目的は、上記問題を解決すること
にあり、分解及び組み付けが容易で、異物の除去や軌道
面の点検等を容易に実行できる総ころ軸受を提供するこ
とにある。An object of the present invention is to solve the above-mentioned problems, and to provide a full roller bearing which can be easily disassembled and assembled, and can easily remove foreign matters and inspect a raceway surface.
【０００９】[0009]
【課題を解決するための手段】本発明の上記目的は、複
列総ころ円筒ころ軸受において、ころ径、ころ数、ころ
ピッチ円径をキーストン効果を発揮するように設定する
ことにより、外輪ところを一体化したことを特徴とする
複列総ころ円筒ころ軸受により達成される。SUMMARY OF THE INVENTION It is an object of the present invention to provide a double-row full-roller cylindrical roller bearing by setting the roller diameter, the number of rollers, and the roller pitch circle diameter so as to exhibit a keystone effect. This is achieved by a double-row full roller cylindrical roller bearing characterized by integrating
【００１０】[0010]
【作用】本発明によれば、外輪ところとがキーストン効
果により一体化されているので、内輪を取り外しても、
外輪ところとがばれることがない。したがって、軸受内
に異物が侵入した際に、異物の除去や軌道面の点検をす
るために分解しても、外輪ところとがばれることがない
ので、その後の再組み付けが容易である。特に、クレー
ン用シーブのような粗雑な環境下で使用される装置の軸
受にとっては、異物除去や点検を頻繁に行えるので、軸
受の寿命が延びるという利点がある。According to the present invention, since the outer ring and the place are integrated by the keystone effect, even if the inner ring is removed,
The outer ring does not come off. Therefore, when foreign matter enters the bearing, even if it is disassembled for removing the foreign matter or inspecting the raceway surface, the outer ring portion does not come off, so that subsequent reassembly is easy. In particular, for a bearing of a device used in a rough environment such as a sheave for a crane, there is an advantage that the life of the bearing is prolonged because foreign substances can be removed and inspection can be performed frequently.
【００１１】[0011]
【発明の実施の形態】以下、図面を参照して本発明の一
実施形態を説明する。図１は第１実施形態の軸受の断面
図、図２は、外輪ところとを軸方向から見た状態の概観
図、図３は外輪ところとの斜視図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of the bearing of the first embodiment, FIG. 2 is a schematic view of the outer ring part viewed from the axial direction, and FIG. 3 is a perspective view of the outer ring part.
【００１２】本実施形態の複列総ころ円筒ころ軸受１０
は、外輪１と内輪２との間に、軸方向に沿って２列の円
筒ころ（以下、単にころという）３の群が配設されて構
成されている。外輪１は両各ころ３の群に共通で一体で
あり、軸方向外側の鍔４及び内側の鍔７によりころ３の
軸方向の動きを規制している。内輪２は各ころ３の群に
それぞれ用意されており、軸方向外側の鍔６によりころ
３の軸方向の動きを規制している。Double-row full-roller cylindrical roller bearing 10 of the present embodiment
Is formed by disposing a group of two rows of cylindrical rollers (hereinafter simply referred to as rollers) 3 along the axial direction between an outer ring 1 and an inner ring 2. The outer ring 1 is common to and integral with each of the rollers 3, and the axial movement of the rollers 3 is restricted by the axially outer flange 4 and the inner flange 7. The inner ring 2 is prepared for each group of the rollers 3, and the axial movement of the rollers 3 is restricted by an axially outer flange 6.
【００１３】外輪１ところ３とは、キーストン効果を発
揮するように、ころ数、ころ径、ころピッチ円径が設定
されている。例えば、本実施形態の場合、図２に示すよ
うに、ころ数は１２であり、ころ径Ｄと、１つおいたこ
ろどうしの中心どうしを結んだ線上での間隔Ｌとは、Ｄ
＞Ｌの関係に設定されている。The number of rollers, the diameter of the rollers, and the diameter of the roller pitch are set for the outer rings 1 and 3 so as to exhibit the keystone effect. For example, in the case of the present embodiment, as shown in FIG. 2, the number of rollers is 12, and the roller diameter D and the interval L on a line connecting the centers of the one set of rollers are D.
> L.
【００１４】このように、ころ３はキーストン効果によ
り外輪１に保持されているので、内輪２を取り外して
も、図３に示すように、ころ３は外輪１から脱落しない
ようになっている。内輪２は、軸方向両側から外輪１内
に挿入され、内輪２の鍔６がころに当接するように組み
付けられる。As described above, since the rollers 3 are held on the outer ring 1 by the keystone effect, even if the inner ring 2 is removed, the rollers 3 are not dropped from the outer ring 1 as shown in FIG. The inner ring 2 is inserted into the outer ring 1 from both sides in the axial direction, and is assembled so that the flange 6 of the inner ring 2 comes into contact with the rollers.
【００１５】なお、外輪１へころを組み付けるには、１
個のころ３を残したすべてのころ３を外輪１内に組み込
んだ後、外輪１を加熱することにより膨張させた状態で
最後の１個のころ３を外輪に組み込む方法である、やき
ばめにより組み込む。In order to assemble the outer ring 1 roller, 1
A method of incorporating all the rollers 3 except the individual rollers 3 into the outer race 1 and then incorporating the last one of the rollers 3 into the outer race in a state where the outer race 1 is expanded by heating. Incorporated by.
【００１６】上記のように、本実施形態の軸受は、異物
除去や内輪の軌道面の点検等の目的で内輪を取り外して
も、外輪からころがばれることがないので、内輪を取り
外して異物除去や内輪の軌道面を点検後、内輪を再び外
輪に組み付けることが容易である。As described above, in the bearing of this embodiment, even if the inner ring is removed for the purpose of removing foreign matter or inspecting the raceway surface of the inner ring, the bearing does not fall off the outer ring. It is easy to reassemble the inner ring to the outer ring after checking the raceway surface of the inner ring.
【００１７】[0017]
【発明の効果】本発明によれば、外輪ところとがキース
トン効果により一体化されているので、外輪から内輪を
取り外しても、外輪からころがばれることがない。した
がって、軸受内の異物の除去や、内輪の軌道面の点検等
の目的で、外輪から内輪を取り外しても、外輪からころ
がばれないので、作業後に内輪を外輪に組み付けるのが
容易であり、異物の除去や内輪の軌道面の点検を頻繁に
実施することができる。According to the present invention, since the outer ring and the outer ring are integrated by the keystone effect, even if the inner ring is removed from the outer ring, the outer ring does not fall off. Therefore, even if the inner ring is removed from the outer ring for the purpose of removing foreign substances in the bearing or inspecting the raceway surface of the inner ring, the inner ring does not roll off from the outer ring, so that the inner ring can be easily assembled to the outer ring after work. It is possible to frequently remove foreign substances and inspect the raceway surface of the inner ring.
【００１８】この結果、粗雑な環境下で使用されるクレ
ーン用のシーブ等に使用される軸受に適用した場合に
は、異物の除去や内輪の軌道面の点検を頻繁に実施でき
るので、安定した性能を長期にわたって維持することが
できる。As a result, when the present invention is applied to a bearing used for a sheave for a crane used in a rough environment, the removal of foreign matters and the inspection of the raceway surface of the inner ring can be carried out frequently. Performance can be maintained for a long time.
【図１】図１は本発明の複列総ころ円筒ころ軸受の一実
施形態の断面図である。FIG. 1 is a cross-sectional view of one embodiment of a double row full complement cylindrical roller bearing of the present invention.
【図２】図２は本発明の複列総ころ円筒ころ軸受の一実
施形態の外輪ところとを軸方向から見た状態の概観図で
ある。FIG. 2 is a schematic view of an embodiment of a double-row full-roller cylindrical roller bearing according to the present invention in a state where an outer ring portion is viewed from an axial direction.
【図３】図３は本発明の複列総ころ円筒ころ軸受の一実
施形態の外輪ところの斜視図である。FIG. 3 is a perspective view of an outer ring of one embodiment of the double row full complement cylindrical roller bearing of the present invention.
【図４】図４は従来の複列総ころ円筒ころ軸受の断面図
である。FIG. 4 is a cross-sectional view of a conventional double row full complement cylindrical roller bearing.
【図５】図５は従来の外輪ところとの斜視図である。FIG. 5 is a perspective view of a conventional outer race.
１０，２０ 複列総ころ円筒ころ軸受 １，２１ 外輪 ２，２２ 内輪 ３，２３ 円筒ころ ４，６，７，２６，２７，２８ 鍔 ２４ 止め輪 ２５ 溝 10,20 Double row full roller cylindrical roller bearing 1,21 Outer ring 2,22 Inner ring 3,23 Cylindrical roller 4,6,7,26,27,28 Flange 24 Retaining ring 25 Groove
Claims (1)
径、ころ数、ころピッチ円径をキーストン効果を発揮す
るように設定することにより、外輪ところを一体化した
ことを特徴とする複列総ころ円筒ころ軸受。1. A double-row full-roller cylindrical roller bearing, wherein the outer ring portion is integrated by setting the roller diameter, the number of rollers, and the roller pitch circle diameter so as to exert a keystone effect. Full roller cylindrical roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001151010A JP2002339987A (en) | 2001-05-21 | 2001-05-21 | Double row full type cylindrical roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001151010A JP2002339987A (en) | 2001-05-21 | 2001-05-21 | Double row full type cylindrical roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002339987A true JP2002339987A (en) | 2002-11-27 |
Family
ID=18995943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001151010A Pending JP2002339987A (en) | 2001-05-21 | 2001-05-21 | Double row full type cylindrical roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002339987A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943211A (en) * | 2010-09-20 | 2011-01-12 | 瓦房店正达冶金轧机轴承有限公司 | Improved four-row cylindrical roller bearing |
| JP7440349B2 (en) | 2020-06-05 | 2024-02-28 | 日本精工株式会社 | Rolling bearing unit for wheel support |
-
2001
- 2001-05-21 JP JP2001151010A patent/JP2002339987A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943211A (en) * | 2010-09-20 | 2011-01-12 | 瓦房店正达冶金轧机轴承有限公司 | Improved four-row cylindrical roller bearing |
| JP7440349B2 (en) | 2020-06-05 | 2024-02-28 | 日本精工株式会社 | Rolling bearing unit for wheel support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20060324 |
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