JPH10131960A - Collar cylindrical roller bearing with sliding plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively prevent the generation of galling of a collar caused by thrust so as to prolong the service life of a bearing by interposing a ring-like sliding plate between a roller and a collar. SOLUTION: In a collar cylindrical roller bearing 7 with a sliding plate, a sliding plate 1 is interposed between a roller 3 and a collar 10 in a collar cylindrical roller bearing. With the sliding plate 1 thus interposed between the roller 3 and the collar 10, the contact area of the roller 3 and collar 10 is enlarged, that is, the roller 3 comes in contact with the sliding plate 1 at the whole end face, and the sliding plate 1 comes in contact with the whole surface of the collar 10 so as to enlarge the contact area of the colllar 10 and roller 3. Contact surface pressure of the collar 10 and roller 3 is therefore lowered, so that the generation of galling of the collar 10 can be prevented to prolong the service life of the bearing. From the viewpoint of reducing wear caused by surface contact with metal (the end face of the roller 3 and the inner surface of the collar 10), nylong, carbon, steel with a solid lubricant applied thereto, or the like is used as the sliding plate 10.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、滑り板付きつば付
き円筒ころ軸受に関し、詳しくは、大きいラジアル荷重
を受ける回転軸の固定側に使用して好適な滑り板付きつ
ば付き円筒ころ軸受に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flanged cylindrical roller bearing with a sliding plate, and more particularly, to a flanged cylindrical roller bearing with a sliding plate suitable for use on the fixed side of a rotating shaft that receives a large radial load.

【０００２】[0002]

【従来の技術】例えば、連鋳機用ロール（ピンチロー
ル、ガイドロール等）の軸受のように、大きなラジアル
荷重を受けながら低速で回転する固定側の軸受として
は、従来、自動調心ころ軸受（例えばJIS B 1535或いは
実開昭51-114321 号公報等参照）や、つば付き円筒ころ
軸受（例えばJIS B 1533或いは実開昭63-40623号公報等
参照）が使用されるのが一般的である。2. Description of the Related Art Conventionally, self-aligning roller bearings have been used as fixed-side bearings that rotate at a low speed while receiving a large radial load, such as bearings for rolls (pinch rolls, guide rolls, etc.) for continuous casting machines. (For example, see JIS B 1535 or Japanese Utility Model Application Laid-Open No. 51-114321) and a cylindrical roller bearing with a collar (for example, see JIS B 1533 or Japanese Utility Model Application Laid-Open No. 63-40623). is there.

【０００３】従来の連鋳機用ロール軸受配置図を図３に
例示する。ロール５の固定側の軸受として自動調心ころ
軸受６が使用されている。なお、自由側の軸受には内輪
つば無し外輪両つば付き球面座付き円筒ころ軸受８が使
用されている。FIG. 3 shows an example of a conventional roll bearing arrangement for a continuous casting machine. A self-aligning roller bearing 6 is used as a bearing on the fixed side of the roll 5. Note that a cylindrical roller bearing 8 with a spherical seat with no inner ring flange and with both outer ring flanges is used as the free-side bearing.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、自動調
心ころ軸受は、低速回転条件下では境界潤滑状態になる
ためころの差動滑りが発生し、ころ下面圧が不均一とな
るために寿命が短いという欠点をもつ。他方、つば付き
円筒ころ軸受は、ころの差動すべりが起こりにくいとい
う点で自動調心ころ軸受より有利である。とはいえ、こ
ろのスキューイング等によるつばのかじりによって摩耗
粉が軸受内部に混入し、この摩耗粉がころや内外輪内面
のフレーキングもしくはつばの欠落をもたらして寿命を
縮めるという別の問題がある。ころのスキューイングに
ついては、軸受の内部隙間を小さくすることにより相当
程度まで防止できることが知られているが、この対策だ
けでは設計寿命に達しないうちに軸受が破損する場合が
ある。However, the self-aligning roller bearing is in a boundary lubrication state under low-speed rotation conditions, causing differential sliding of the rollers, and a non-uniform pressure on the lower surface of the rollers. It has the disadvantage of being short. On the other hand, flanged cylindrical roller bearings are more advantageous than self-aligning roller bearings in that differential sliding of the rollers is less likely to occur. Nevertheless, another problem is that wear powder is mixed into the bearing due to the galling of the rollers due to roller skew, etc. is there. It is known that roller skew can be prevented to a considerable extent by reducing the internal clearance of the bearing, but this measure alone may damage the bearing before it reaches its design life.

【０００５】本発明者はこの点に関して鋭意検討を重ね
た結果、ころとつばとがスラスト力によって互いに強く
押し合う状況が生じた際の金属対金属の面接触によって
も、つばのかじりが発生することがわかった。このスラ
スト力起因のつばのかじり発生を防止する有効な対策は
従来技術に見当たらない。本発明の目的は、上記従来技
術の問題に鑑み、スラスト力起因のつばのかじり発生を
抑制できる滑り板付きつば付き円筒ころ軸受を提供する
ことにある。The inventor of the present invention has made intensive studies on this point, and as a result, the galling of the collar also occurs due to the metal-to-metal surface contact when the roller and the collar are strongly pressed against each other by the thrust force. I understand. There is no effective countermeasure for preventing the occurrence of the galling of the collar due to the thrust force. An object of the present invention is to provide a cylindrical roller bearing with a flange having a sliding plate, which can suppress the occurrence of galling of a collar due to a thrust force in view of the above-mentioned problems of the related art.

【０００６】[0006]

【課題を解決するための手段】本発明は、つば付き円筒
ころ軸受において、ころとつばとの間にリング状の滑り
板が介装されてなることを特徴とする滑り板付きつば付
き円筒ころ軸受である。前記滑り板としては、ナイロ
ン、カーボン、もしくは固形潤滑剤を塗布された鋼が例
示される。SUMMARY OF THE INVENTION The present invention relates to a cylindrical roller bearing with a collar, characterized in that a ring-shaped slide plate is interposed between the rollers and the collar. Bearings. Examples of the sliding plate include nylon, carbon, and steel coated with a solid lubricant.

【０００７】[0007]

【発明の実施の形態】図１は、本発明の滑り板付きつば
付き円筒ころ軸受の一例を示す（ａ）は縦断面図、
（ｂ）は（ａ）のＡＡ矢視図である。図１において、１
は滑り板、２は外輪、３はころ、４は内輪、７は滑り板
付きつば付き円筒ころ軸受、10はつばである。同図に示
すように、本発明の滑り板付きつば付き円筒ころ軸受７
は、つば付き円筒ころ軸受において、ころ３とつば10と
の間に滑り板１が介装されてなることを要旨とする。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of a flanged cylindrical roller bearing with a sliding plate according to the present invention.
(B) is an AA arrow view of (a). In FIG. 1, 1
Is a sliding plate, 2 is an outer ring, 3 is a roller, 4 is an inner ring, 7 is a cylindrical roller bearing with a sliding plate and a collar, and 10 is a collar. As shown in the drawing, the cylindrical roller bearing 7 with a flange provided with a sliding plate of the present invention.
The gist of the invention is that a sliding plate 1 is interposed between a roller 3 and a collar 10 in a cylindrical roller bearing with a collar.

【０００８】ころ３とつば10との間にリング状の滑り板
１を介装することにより、ころ３とつば10との接触面積
が拡大する。すなわち、ころ３は滑り板１とその端面の
全面で当接し、また、滑り板１はつば10の全面に当接す
ることにより、つば10ところ３との接触面積が拡大す
る。このことによってつば10ところ３との接触面圧が下
がるので、つばのかじりの発生が防止でき、軸受の寿命
が延長する。[0008] By interposing the ring-shaped sliding plate 1 between the roller 3 and the collar 10, the contact area between the roller 3 and the collar 10 is increased. That is, the roller 3 abuts on the entire surface of the end face of the sliding plate 1, and the sliding plate 1 abuts on the entire surface of the collar 10, so that the contact area between the collar 10 and the portion 3 is increased. As a result, the contact surface pressure at the brim 10 and the place 3 is reduced, so that the occurrence of galling of the brim can be prevented and the life of the bearing is extended.

【０００９】なお、金属（ころ３の端面およびつば10の
内面）との面接触による摩耗を軽減する観点から、滑り
板10としては、例えば、ナイロン、カーボン、もしくは
固形潤滑剤を塗布された鋼等が挙げられる。From the viewpoint of reducing abrasion due to surface contact with metal (the end face of the roller 3 and the inner face of the collar 10), the sliding plate 10 is made of, for example, nylon, carbon, or steel coated with a solid lubricant. And the like.

【００１０】[0010]

【実施例】図２は、本発明を実施した連鋳機ロール軸受
配置図である。同図に示すように固定側の軸受を、図３
の従来の自動調心ころ軸受６に代えて、本発明の滑り板
付きつば付き円筒ころ軸受７とした。なお、滑り板10に
はナイロン板を用いた。その結果、この連鋳機ロールの
固定側の軸受の寿命が、図３の形態で操業していた従来
に比べて約３倍に延長するという顕著な効果が得られ
た。FIG. 2 is a layout view of a continuous caster roll bearing embodying the present invention. As shown in FIG.
Instead of the conventional self-aligning roller bearing 6, a cylindrical roller bearing 7 with a flange with a sliding plate of the present invention was used. Note that a nylon plate was used for the sliding plate 10. As a result, a remarkable effect was obtained in that the service life of the bearing on the fixed side of the continuous caster roll was extended about three times as compared with the conventional operation which was operated in the mode of FIG.

【００１１】[0011]

【発明の効果】本発明によれば、つば付き円筒ころ軸受
で問題となるスラスト力起因のつばのかじり発生を効果
的に防止でき、軸受寿命が延長するという優れた効果を
奏する。According to the present invention, it is possible to effectively prevent the occurrence of the galling of the brim caused by the thrust force, which is a problem in the cylindrical roller bearing with the brim, and to provide an excellent effect of extending the life of the bearing.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の滑り板付きつば付き円筒ころ軸受の一
例を示す（ａ）は断面図、（ｂ）は（ａ）のＡＡ矢視図
である。1A and 1B show an example of a cylindrical roller bearing with a flange provided with a sliding plate according to the present invention, wherein FIG. 1A is a cross-sectional view, and FIG.

【図２】本発明を実施した連鋳機ロール軸受配置図であ
る。FIG. 2 is a layout view of a continuous caster roll bearing embodying the present invention.

【図３】従来の連鋳機用ロール軸受配置図である。FIG. 3 is a layout view of a conventional roll bearing for a continuous casting machine.

【符号の説明】 １ 滑り板 ２ 外輪 ３ ころ ４ 内輪 ５ ロール ６ 自動調心ころ軸受 ７ 滑り板付きつば付き円筒ころ軸受 ８ 内輪つば無し外輪両つば付き球面座付き円筒ころ軸
受 10 つば[Description of Signs] 1 Sliding plate 2 Outer ring 3 Roller 4 Inner ring 5 Roll 6 Self-aligning roller bearing 7 Cylindrical roller bearing with flange on sliding plate 8 Cylindrical roller bearing with spherical seat on inner ring without inner ring flange 10 Collar

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 つば付き円筒ころ軸受において、ころと
つばとの間にリング状の滑り板が介装されてなることを
特徴とする滑り板付きつば付き円筒ころ軸受。1. A flanged cylindrical roller bearing having a flange, wherein a ring-shaped slide plate is interposed between the rollers and the flange. 【請求項２】 素材が、ナイロン、カーボン、もしくは
固形潤滑剤を塗布された鋼である請求項１記載の滑り板
付きつば付き円筒ころ軸受。2. The cylindrical roller bearing with a sliding plate according to claim 1, wherein the material is nylon, carbon, or steel coated with a solid lubricant.