JPH06346925A - Anticreep system of bearing - Google Patents
Anticreep system of bearingInfo
- Publication number
- JPH06346925A JPH06346925A JP13607193A JP13607193A JPH06346925A JP H06346925 A JPH06346925 A JP H06346925A JP 13607193 A JP13607193 A JP 13607193A JP 13607193 A JP13607193 A JP 13607193A JP H06346925 A JPH06346925 A JP H06346925A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- creep
- engagement surfaces
- amount
- load
- 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
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
- Support Of The Bearing (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は軸受のクリープ防止装置
に係わり、特に既設の軸受の補修に好適な軸受のクリー
プ防止装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing creep prevention device, and more particularly to a bearing creep prevention device suitable for repairing an existing bearing.
【０００２】[0002]
【従来の技術】一般に、軸受はその嵌合部にクリープ防
止のための締代、つまり軸受の外輪または内軸の嵌合面
を押す予圧力を加えるが、構造上これには制限があり、
むやみには大きくできない。従つて軸受を長期間使用す
ると、締代の少ない軸受の嵌合面で、滑り摩擦であるク
リープが進行し、その摩耗粉や摩擦熱により軸受の性能
や精度が損なわれることがある。このクリープを防止す
るために締代を増すことは、構造上および組立て上の制
限からむやみにできないため、実開昭６３−１３３６４
０号公報に記載のように、材料の違いによる線膨張係数
の異なる軸受と軸受箱を用いたものが提案されている。
また既設軸受の嵌合面の摩耗に対処する方法としては、
軸受箱のハウジング部または軸の外周嵌合面の摩耗部分
に金属溶接、金属肉盛り、またはメツキを施したり、比
較的軽荷重な軸受に対しては、嵌合面に接着剤を塗布す
る方法等が知られている。さらに既設軸受の嵌合面の摩
耗に対処する別の方法として、部品一式を交換すること
が行なわれていた。2. Description of the Related Art Generally, a bearing is subjected to a tightening margin for preventing creep, that is, a preload for pushing a fitting surface of an outer ring or an inner shaft of the bearing is applied to a fitting portion of the bearing.
It can't be increased unnecessarily. Therefore, when the bearing is used for a long period of time, creep, which is sliding friction, progresses on the fitting surface of the bearing with a small tightening margin, and the abrasion powder and frictional heat may impair the performance and accuracy of the bearing. It is not possible to increase the tightening margin to prevent this creep because of structural and assembly restrictions.
As described in Japanese Unexamined Patent Publication No. 0, a bearing using a bearing and a bearing housing having different linear expansion coefficients due to different materials has been proposed.
Also, as a method to deal with wear of the fitting surface of the existing bearing,
A method of applying metal welding, metal overlay, or plating to the worn part of the housing part of the bearing box or the outer peripheral fitting surface of the shaft, or applying an adhesive to the fitting surface for bearings with a relatively light load. Etc. are known. Further, as another method for dealing with the wear of the fitting surface of the existing bearing, a set of parts has been replaced.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
実開昭６３−１３３６４０号公報に記載した軸受のクリ
ープ防止装置は、主に新しい部品に軸受を組み込む際の
クリープ防止であり、また既設軸受の嵌合面の摩耗に対
して、軸受箱のハウジング部または軸の外周嵌合面の摩
耗部分に金属溶接、金属肉盛り、またはメツキを施すこ
とは、部品を工場に持ち込み加工処理するため多大な時
間を要することになる。また、部品を新たに製作し交換
することは、機械装置の停止時間が増大するために顧客
サービス面で問題となつてしまう。However, the conventional creep preventing device for a bearing described in Japanese Utility Model Laid-Open No. 63-133640 is for preventing creep when the bearing is incorporated in a new part, and is also used for the existing bearing. With respect to wear of the mating surface, metal welding, metal buildup, or plating on the worn part of the housing part of the bearing box or the outer peripheral mating surface of the shaft is a great deal because the parts are brought into the factory for processing. It will take time. In addition, the new production and replacement of parts poses a problem in terms of customer service because the down time of the mechanical device increases.
【０００４】本発明の目的とするところは、軸受嵌合面
の摩耗量が比較的多い場合でも、短時間に実施できる軸
受のクリープ防止装置を提供するにある。It is an object of the present invention to provide a bearing creep prevention device which can be implemented in a short time even when the amount of wear of the bearing fitting surface is relatively large.
【０００５】[0005]
【課題を解決するための手段】本発明は上記目的を達成
するために、回転体と軸受を嵌合して成る軸受のクリー
プ防止装置において、上記回転体および上記軸受の嵌合
面のいずれか一方にローレツト加工部を形成したことを
特徴とする。In order to achieve the above object, the present invention provides a creep preventing device for a bearing, comprising a rotating body and a bearing fitted to each other, wherein any one of the fitting surfaces of the rotating body and the bearing. It is characterized in that a low-lett processed portion is formed on one side.
【０００６】[0006]
【作用】本発明による軸受のクリープ防止装置は、上述
の如く摩耗によつて嵌合面に隙間が発生した場合、いず
れか一方の嵌合面にローレツト加工を施すことによりそ
の凹んだ部分の周囲を盛り上がらせ、その分だけ軸受に
予圧力となる締代を与えることができるので、短時間に
軸受のクリープ防止を図ることができる。In the device for preventing creep of a bearing according to the present invention, when a gap is generated on the fitting surface due to the wear as described above, one of the fitting surfaces is subjected to the low-letting process to surround the recessed portion. Since the bearing can be raised and a tightening margin that is a preload can be given to the bearing by that amount, the creep of the bearing can be prevented in a short time.
【０００７】[0007]
【実施例】以下、本発明の実施例を図面によつて説明す
る。図３は本発明の一実施例による軸受のクリープ防止
装置を採用する軸受装置の断面図である。軸３と、プー
リ２のハウジング部間に所定の締代を持つて軸受１が組
み込まれている。軸受部分の詳細は図３の要部拡大図で
ある図１に示すように、プーリ２は軸受外輪８と一緒に
回転するため、軸受外輪８側に締代を持つており、通
常、この締代は軸受１のサイズおよび負荷荷重によつて
も異なるが、軸受１の外径約２００ミリメートルのもの
に対して０．０３ミリメートル程度、軸受１の外径に比
べてハウジングの内径が小さくなつている。一方、軸受
内輪９は軸３と若干の隙間を持たせて組み立てられてい
る。Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 is a cross-sectional view of a bearing device that employs a bearing creep prevention device according to an embodiment of the present invention. The bearing 1 is assembled between the shaft 3 and the housing portion of the pulley 2 with a predetermined interference. The details of the bearing portion are shown in FIG. 1, which is an enlarged view of the main part of FIG. 3, because the pulley 2 rotates together with the bearing outer ring 8, there is a tightening margin on the bearing outer ring 8 side. The cost depends on the size of the bearing 1 and the load applied, but it is about 0.03 mm for the bearing 1 having an outer diameter of about 200 mm, and the inner diameter of the housing is smaller than the outer diameter of the bearing 1. There is. On the other hand, the bearing inner ring 9 is assembled with the shaft 3 with a slight clearance.
【０００８】今、この軸受装置が長期間使用したため、
締代不足によりクリープが進行して軸受外輪８に接して
いるプーリ２のハウジング部分が摩耗し、隙間ｃが発生
したとする。このとき、軸受１とプーリ２を解体し、図
２に示すようにハウジング部にローレツト加工を施す
と、寸法ａの凹部２ａが形成されると共に、その周囲が
寸法ｂだけ盛り上がり凸部２ｂが形成される。一方、新
しい軸受１の軸受外輪８の外周部分にも切削溝等の溝を
付け、プーリ２のハウジング部および軸受１の外周部分
に接着剤を塗布し、軸受１をハウジング内に圧入する。
この圧入によつて寸法ｂだけ盛り上がつた凸部２ｂが弾
性変形し、軸受外輪８の外周に予圧力となる締代を与
え、かつ、両者の嵌合部に接着剤が充填されているた
め、荷重に対する負荷能力も増し、更に、ハウジング面
のローレツト加工溝と軸受外輪８の外周部に設けた溝に
より接着強度の増大が図れ、ハウジング部におけるクリ
ープを防止することができる。Since this bearing device has been used for a long time now,
It is assumed that creeping progresses due to insufficient tightening and the housing portion of the pulley 2 in contact with the bearing outer ring 8 is worn and a gap c is generated. At this time, when the bearing 1 and the pulley 2 are disassembled and the housing portion is subjected to the low-letting process as shown in FIG. 2, the concave portion 2a having the dimension a is formed, and the surrounding convex portion 2b is formed by the dimension b. To be done. On the other hand, a groove such as a cutting groove is also formed on the outer peripheral portion of the bearing outer ring 8 of the new bearing 1, an adhesive is applied to the housing portion of the pulley 2 and the outer peripheral portion of the bearing 1, and the bearing 1 is pressed into the housing.
By this press-fitting, the convex portion 2b raised by the dimension b is elastically deformed to give a tightening margin as a preload to the outer circumference of the bearing outer ring 8, and the fitting portion of both is filled with the adhesive. Therefore, the load capacity with respect to the load is also increased, and further the adhesive strength is increased by the grooved groove on the housing surface and the groove provided on the outer peripheral portion of the bearing outer ring 8, and creep in the housing portion can be prevented.
【０００９】尚、新しい軸受１の軸受外輪８の外周部分
の溝は、接着性を高めるためのもので、サンドブラスト
加工によつて形成しても同様の効果がある。また、軽荷
重でプーリ２のハウジング部のローレツト加工による締
代で充分な場合には、軸受外輪外周部は加工を施さなく
ても良い。一方、モータ軸のように軸３と軸受内輪９が
一緒に回転し、軸受外輪８が回転しない場合には、軸受
内輪９側にクリープによる摩耗が発生するので、このと
きには軸３の外形表面にローレツト加工を施して同様に
処理するなら、クリープを防止することができる。従つ
て、軸受と、回転体との嵌合面に本発明を適用すること
ができる。The groove in the outer peripheral portion of the bearing outer ring 8 of the new bearing 1 is for improving the adhesiveness, and the same effect can be obtained even if it is formed by sandblasting. Further, when the tightening allowance of the housing portion of the pulley 2 under a light load is sufficient, the outer peripheral portion of the bearing outer ring may not be processed. On the other hand, when the shaft 3 and the bearing inner ring 9 rotate together like a motor shaft and the bearing outer ring 8 does not rotate, wear due to creep occurs on the bearing inner ring 9 side. Creep can be prevented by applying low-letting processing and performing the same processing. Therefore, the present invention can be applied to the fitting surface between the bearing and the rotating body.
【００１０】[0010]
【発明の効果】以上説明したように本発明による軸受の
クリープ防止装置は、回転体と軸受の嵌合部の摩耗によ
つて隙間が発生した場合、いずれか一方の嵌合面にロー
レツト加工を施すことによりその凹んだ部分の周囲を盛
り上がらせ、その分だけ軸受に予圧力となる締代を与え
ることができ、短時間に軸受のクリープ防止を図ること
ができる。As described above, in the bearing creep prevention device according to the present invention, when a gap is generated due to the wear of the fitting portion between the rotating body and the bearing, either one of the fitting surfaces is subjected to the loretting process. By applying it, the periphery of the recessed portion is raised, and the tightening margin as a preload can be given to the bearing by that amount, and creep of the bearing can be prevented in a short time.
【図１】本発明の一実施例による軸受のクリープ防止装
置を採用した軸受の要部拡大断面図である。FIG. 1 is an enlarged cross-sectional view of a main part of a bearing which employs a bearing creep prevention device according to an embodiment of the present invention.
【図２】ローレツト加工を施した嵌合面の断面図であ
る。FIG. 2 is a cross-sectional view of a mating surface that has been subjected to knurling.
【図３】図１に示した軸受の断面図である。FIG. 3 is a sectional view of the bearing shown in FIG.
１ 軸受 ２ プーリ ２ａ 凹部 ２ｂ 凸部 ３ 軸 ８ 軸受外輪 ９ 軸受内輪 1 Bearing 2 Pulley 2a Recess 2b Convex 3 Shaft 8 Bearing outer ring 9 Bearing inner ring
Claims (2)
ープ防止装置において、上記回転体および上記軸受の嵌
合面のいずれか一方にローレツト加工部を形成したこと
を特徴とする軸受のクリープ防止装置。1. A creep preventing device for a bearing, comprising a rotating body and a bearing fitted together, wherein a rolling portion is formed on either one of the mating surfaces of the rotating body and the bearing. Creep prevention device.
合面に溝を形成し、上記ローレツト加工部と上記溝との
嵌合面間に接着剤を介在したことを特徴とする軸受のク
リープ防止装置。2. The bearing according to claim 1, wherein a groove is formed on the other fitting surface, and an adhesive agent is interposed between the fitting surfaces of the knurled portion and the groove. Creep prevention device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13607193A JPH06346925A (en) | 1993-06-07 | 1993-06-07 | Anticreep system of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13607193A JPH06346925A (en) | 1993-06-07 | 1993-06-07 | Anticreep system of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06346925A true JPH06346925A (en) | 1994-12-20 |
Family
ID=15166549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13607193A Pending JPH06346925A (en) | 1993-06-07 | 1993-06-07 | Anticreep system of bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06346925A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008545080A (en) * | 2005-06-30 | 2008-12-11 | ゲレーテ−ウント・プンペンバウ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング・ドクトル・オイゲン・シュミット | Structure and method for positioning a pump bearing in / on a plastic refrigerant pump housing |
| JP2009162298A (en) * | 2008-01-07 | 2009-07-23 | Jtekt Corp | Rolling bearing and bearing structure equipped with the same |
| US20120093453A1 (en) * | 2006-01-31 | 2012-04-19 | John Horvat | Bearing anti creep device & method |
-
1993
- 1993-06-07 JP JP13607193A patent/JPH06346925A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008545080A (en) * | 2005-06-30 | 2008-12-11 | ゲレーテ−ウント・プンペンバウ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング・ドクトル・オイゲン・シュミット | Structure and method for positioning a pump bearing in / on a plastic refrigerant pump housing |
| US20120093453A1 (en) * | 2006-01-31 | 2012-04-19 | John Horvat | Bearing anti creep device & method |
| US8177436B2 (en) * | 2006-01-31 | 2012-05-15 | John Horvat | Bearing anti creep device and method |
| US8444321B2 (en) * | 2006-01-31 | 2013-05-21 | John Horvat | Bearing anti creep device and method |
| JP2009162298A (en) * | 2008-01-07 | 2009-07-23 | Jtekt Corp | Rolling bearing and bearing structure equipped with the same |
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