JPH1137152A - Creep preventive rolling bearing - Google Patents
Creep preventive rolling bearingInfo
- Publication number
- JPH1137152A JPH1137152A JP9203911A JP20391197A JPH1137152A JP H1137152 A JPH1137152 A JP H1137152A JP 9203911 A JP9203911 A JP 9203911A JP 20391197 A JP20391197 A JP 20391197A JP H1137152 A JPH1137152 A JP H1137152A
- Authority
- JP
- Japan
- Prior art keywords
- housing
- locking
- shape
- creep
- shield
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
- F16C25/06—Ball or roller bearings
- F16C25/08—Ball or roller bearings self-adjusting
- F16C25/083—Ball or roller bearings self-adjusting with resilient means acting axially on a race ring to preload the bearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/783—Details of the sealing or parts thereof, e.g. geometry, material of the mounting region
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
- F16C33/7846—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with a gap between the annular disc and the inner race
- F16C33/785—Bearing shields made of sheet metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、クリープ防止転が
り軸受に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-creep rolling bearing.
【０００２】[0002]
【従来の技術】従来、例えばクリーナモータのような高
速で使用される軸受として、図４に示す密封型玉軸受１
００が知られている。密封型玉軸受１００は、内輪２０
０・外輪３００間に転動体４００と保持器７００を配
し、外輪３００の端面に設けられた環状溝にシールド５
００が嵌着され、シールド５００の内径先端を内輪２０
０に近接させ、ラビリンス６００を形成することによ
り、軸受内部にブラシ粉や塵埃等の異物が侵入しないよ
うにしたものである。2. Description of the Related Art Conventionally, a sealed ball bearing 1 shown in FIG.
00 is known. The sealed ball bearing 100 is
The rolling element 400 and the retainer 700 are arranged between the outer ring 300 and the shield 5 is provided in an annular groove provided on the end face of the outer ring 300.
00 is fitted, and the inner diameter tip of the shield 500 is
0, and a labyrinth 600 is formed to prevent foreign matter such as brush powder and dust from entering the bearing.
【０００３】[0003]
【発明が解決しようとする課題】ところが、クリーナモ
ータは高速で回転するため、特に、自由側の軸受（図示
例では外輪３００）とハウジング８００の間でクリープ
が発生するという問題があった。However, since the cleaner motor rotates at a high speed, there is a problem that creep is generated particularly between the free bearing (the outer ring 300 in the illustrated example) and the housing 800.
【０００４】本発明は、従来技術の有するこのような問
題点に鑑みなされたもので、その目的とするところは、
アキシャアル方向および周方向におけるクリープを防止
できる転がり軸受を提供することである。[0004] The present invention has been made in view of the above-mentioned problems of the prior art.
An object of the present invention is to provide a rolling bearing capable of preventing creep in an axial direction and a circumferential direction.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に本発明がなした技術的手段は、密封板を備えて構成さ
れている軸受であって、係止部を備えた両端部が、夫々
軸方向反対に向くように折り曲げ形成し、上記一端部を
密封板に、他端部をハウジングに夫々係合せしめて配さ
れる予圧バネを備えたことである。The technical solution of the present invention for solving the above-mentioned problem is a bearing which is provided with a sealing plate, wherein both ends having a locking portion are provided with: The preload springs are formed so as to be bent so as to face each other in the axial direction, and the one end is engaged with the sealing plate and the other end is engaged with the housing.
【０００６】[0006]
【発明の実施形態】以下、本発明の一実施形態を図に基
づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.
【０００７】図面は、本発明クリープ防止転がり軸受の
一実施形態としての密封型転がり軸受で、密封型転がり
軸受は、外輪１，内輪３間に転動体４と保持器５を配
し、外輪１の端面に周設した環状溝２には、外径部７が
取り付けられた鋼製シールド（密封板）６を備え、そし
てハウジング１５の内側壁１６との間には予圧バネ９を
備えて構成され、ハウジング１５と接する上記外輪１が
自由側とされている。The drawing shows a sealed rolling bearing as one embodiment of the anti-creep rolling bearing of the present invention. The sealed rolling bearing has a rolling element 4 and a retainer 5 disposed between an outer ring 1 and an inner ring 3, and the outer ring 1 Is provided with a steel shield (sealing plate) 6 to which an outer diameter portion 7 is attached, and a preload spring 9 between the annular groove 2 and the inner wall 16 of the housing 15. The outer ring 1 in contact with the housing 15 is on the free side.
【０００８】上記鋼製シールド（密封板）６は、その外
径部（カール部）７に所望幅の切欠き８を設けて構成さ
れており、該切欠き８は、カール部７の任意箇所を選択
し、該カール部７の任意箇所先端から略中程にわたり、
細幅の平面視矩形状に切欠き形成されている（図１乃至
図３参照）。The steel shield (sealing plate) 6 is formed by providing a notch 8 of a desired width in an outer diameter portion (curl portion) 7 of the steel shield (sealing plate). , And from the tip of an arbitrary portion of the curl portion 7 to about the middle,
The cutout is formed in a narrow rectangular shape in plan view (see FIGS. 1 to 3).
【０００９】ハウジング１５は、その内側壁１６の下方
に所望幅の嵌合係止部（嵌合穴）１７を設けて構成され
ており、該嵌合係止部１７は、内側壁１６の下方任意箇
所を選択し、該内側壁１６の表面から内方に向けて細幅
の正面視矩形状（立方体形状）に凹設されている。The housing 15 is provided with a fitting / locking portion (fitting hole) 17 having a desired width below the inner side wall 16, and the fitting / locking portion 17 is provided below the inner side wall 16. An arbitrary portion is selected, and is concavely formed in a narrow rectangular shape (cubic shape) as viewed from the front inward from the surface of the inner wall 16.
【００１０】上記シールド６の切欠き８およびハウジン
グ１５の嵌合係止部１７は、夫々図示例に何等限定され
るものではなく、後述する予圧バネ９の係止部１３，１
４を夫々嵌合係止せしめることの可能な構造であればよ
く任意に設計変更される。例えば、切欠き８は、図示例
に代えて平面視くさび形，あるいは平面視鍵穴形など、
予圧バネ９の係止部１３形状に合致した任意形状でよ
い。また、嵌合係止部１７は、図示例に代えて正面視く
さび形，あるいは正面視鍵穴形など、予圧バネ９の係止
部１４が差込み嵌合可能な形状であればよい。The notch 8 of the shield 6 and the fitting and locking portion 17 of the housing 15 are not limited to those shown in the drawings, and are not limited to the illustrated examples.
The design can be arbitrarily changed as long as it is a structure capable of fitting and locking the respective members 4. For example, the notch 8 may have a wedge shape in plan view or a keyhole shape in plan view instead of the illustrated example.
Any shape that matches the shape of the locking portion 13 of the preload spring 9 may be used. Further, the fitting and locking portion 17 may have any shape such that the locking portion 14 of the preload spring 9 can be inserted and fitted, such as a wedge shape in front view or a keyhole shape in front view, instead of the illustrated example.
【００１１】また、本実施形態では上述したように鋼製
シールド６をもって説明するが、本発明において密封板
として機能するものであれば何等これに限定されるもの
でなく、例えば合成樹脂あるいはゴムなどからなるシー
ルを備えるものとしてもよく、後述する予圧バネ９の一
端係止部１３を係止可能な程度の硬度を有するものであ
れば本発明の範囲内において適宜選択可能である。In the present embodiment, the steel shield 6 will be described as described above. However, the present invention is not limited to this as long as it functions as a sealing plate in the present invention. The preload spring 9 may be appropriately selected within the scope of the present invention as long as it has a hardness enough to lock the one end locking portion 13 of the preload spring 9 described later.
【００１２】また、内輪３、転動体４、保持器５にあっ
ても何等図示例に限定されるものではなく本発明の範囲
内において一般周知の構造を適用可能である。The inner ring 3, the rolling elements 4, and the retainer 5 are not limited to the illustrated examples, and a generally known structure can be applied within the scope of the present invention.
【００１３】予圧バネ９は、例えば金属や合成樹脂など
を使用して、弾発力を備えるよう形成されたウェーブワ
ッシャ状で、両端部１１，１２がそれぞれ軸方向反対に
向くように細長状本体１０を捩れ状に折り曲げ形成、プ
レス成形あるいは射出成形等により形成し、上記夫々の
端部１１，１２には係止部（舌片）１３，１４を突出せ
しめて構成されている。The preload spring 9 is made of, for example, a metal or a synthetic resin, and has a wave washer shape formed to have a resilient force. 10 is formed by twisting, bending, press molding, injection molding, or the like, and each of the ends 11, 12 has a locking portion (tongue piece) 13, 14 protruding therefrom.
【００１４】すなわち、本実施形態では、一端部１１が
軸受側に向き、他端部１２がハウジング内側壁１６側に
向くように構成されている。また、細長状本体１０の長
さ、厚み、折り曲げ度合いなどにあっては、本発明の範
囲内であれば特に限定されるものではない。That is, in the present embodiment, one end 11 faces the bearing and the other end 12 faces the inner wall 16 of the housing. The length, thickness, bending degree, and the like of the elongated main body 10 are not particularly limited as long as they are within the scope of the present invention.
【００１５】予圧バネ９の一端部１１側の係止部（舌
片）１３は、上記シールド６の切欠き８に嵌合係止可能
な幅で、かつ一端部１１の高さ方向下端から中程までに
わたる高さで突出形成されており、一方他端部１２側の
係止部（舌片）１４は、上記ハウジング１５の嵌合係止
部１７に嵌合係止可能な幅で、かつ他端部１２と同一高
さで突出形成されている。A locking portion (tongue piece) 13 on one end 11 side of the preload spring 9 has a width that can be fitted and locked in the notch 8 of the shield 6 and extends from the lower end in the height direction of the one end 11 to the middle. The engaging portion (tongue piece) 14 on the other end 12 side has a width capable of fitting and engaging with the engaging engaging portion 17 of the housing 15 and The projection is formed at the same height as the other end portion 12.
【００１６】上記係止部１３，１４は、夫々図示例に何
等限定されるものではなく、また係止部１３，１４は本
実施形態において異なった形状をしているが、夫々同一
形状にしてもよく、夫々がシールド６側、ハウジング１
５側に嵌合係止可能な形状とするものであれば本発明の
範囲内においてその他の任意な形状に変更可能である。The locking portions 13 and 14 are not limited to the illustrated examples, and the locking portions 13 and 14 have different shapes in the present embodiment. Shield 6 side, housing 1
Any other shape can be used within the scope of the present invention as long as the shape can be fitted and locked to the fifth side.
【００１７】例えば、係止部（舌片）１３は、図示例で
は細幅の平面視矩形状に形成されているが、シールド６
の切欠き８に嵌合係止できる形状を有していれば、平面
視くさび形、平面視鍵穴形など、切欠き８形状に合致す
る任意形状でよい。また、係止部（舌片）１４は、図示
例では正面視矩形状に凹設されているが、ハウジング１
５の嵌合係止部１７に差込み嵌合可能な形状を有してい
れば、正面視くさび形、正面視鍵穴形など、嵌合係止部
１７に合致する形状でよい。また、予圧バネ９の全体形
状も図示したウェーブワッシャ形状に限らず、両端部１
１，１２の係止部１３，１４をシールド６側とハウジン
グ１５側に夫々係止し、その弾発力で軸受に予圧を負荷
すると同時にクリープを防止する構成であれば特に本実
施形態に限定されるものではなく本発明の範囲内におい
て他の形状を選択可能である。For example, the locking portion (tongue piece) 13 is formed in a narrow width in a rectangular shape in plan view in the illustrated example.
Any shape that matches the shape of the notch 8, such as a wedge shape in plan view and a keyhole shape in plan view, may be used as long as it has a shape that can be fitted and locked in the notch 8. In the illustrated example, the locking portion (tongue piece) 14 is recessed in a rectangular shape when viewed from the front.
As long as it has a shape that can be inserted and fitted into the fitting / locking portion 17 of FIG. 5, a shape matching the fitting / locking portion 17 such as a wedge shape in front view and a keyhole shape in front view may be used. Further, the entire shape of the preload spring 9 is not limited to the illustrated wave washer shape,
This embodiment is particularly limited as long as it has a configuration in which the locking portions 13 and 14 are locked to the shield 6 side and the housing 15 side, respectively, and a preload is applied to the bearing by the resilient force and at the same time, creep is prevented. However, other shapes can be selected within the scope of the present invention.
【００１８】従って、上記予圧バネ９に設けられている
一端部１１の係止部１３をシールド６の外径部７に設け
た切欠き８に嵌合係止させ、そして他端部１２の係止部
１４をハウジング１５の内側壁１６に設けた嵌合係止部
１７に嵌合係止せしめて予圧バネ９を軸受とハウジング
との間に備える。Therefore, the engaging portion 13 of the one end 11 provided on the preload spring 9 is fitted and engaged with the notch 8 provided on the outer diameter portion 7 of the shield 6, and the engaging portion 13 of the other end 12 is engaged. The stop portion 14 is fitted and locked to the fitting and locking portion 17 provided on the inner side wall 16 of the housing 15, and the preload spring 9 is provided between the bearing and the housing.
【００１９】従って、上記せるように予圧バネ９に設け
られた係止部（舌片）１３，１４が、シールド６外径部
７の切欠き８とハウジング内側壁１６の嵌合係止部１７
に嵌合係止することにより、自由側とされている軸受
（外輪１）へ予圧を付与すると同時に、軸受へクリープ
が防止できる。Accordingly, the locking portions (tongues) 13 and 14 provided on the preload spring 9 as described above are formed by the notch 8 of the outer diameter portion 7 of the shield 6 and the fitting locking portion 17 of the inner wall 16 of the housing.
, The preload is applied to the free bearing (outer ring 1), and at the same time, the bearing can be prevented from creeping.
【００２０】また、本実施形態では単一の予圧バネ９
と、該バネ９の両端の係止部１３，１４が係止される密
封板（シールド）６の単一の切欠き８およびハウジング
１５の単一の嵌合係止部１７をもって説明したが、密封
板６の切欠き８の数およびハウジング１５の嵌合係止部
１７の数と、配設される予圧バネ９の数は、夫々に応じ
て複数個備えるものとしてもよく、またその配設間隔も
限定されず本発明の範囲内において任意である。In this embodiment, a single preload spring 9 is used.
And the single notch 8 of the sealing plate (shield) 6 where the locking portions 13 and 14 at both ends of the spring 9 are locked and the single fitting locking portion 17 of the housing 15. The number of the notches 8 in the sealing plate 6, the number of the engagement locking portions 17 of the housing 15, and the number of the preload springs 9 provided may be plural in accordance with each of them. The interval is not limited and is optional within the scope of the present invention.
【００２１】[0021]
【発明の効果】本発明は、予圧バネに設けられた両端の
係止部が、密封板外径部とハウジング内側壁に夫々係合
することにより軸受へ予圧を付与し、アキシャアル方向
と共に、周方向におけるクリープを防止できる転がり軸
受が提供できる。According to the present invention, a preload is applied to the bearing by engaging the locking portions at both ends provided on the preload spring with the outer diameter portion of the sealing plate and the inner wall of the housing, respectively. A rolling bearing capable of preventing creep in the direction can be provided.
【００２２】また、本発明の軸受によれば上記構成とし
た予圧バネの一端を密封板に嵌合係止するものとしたた
めシールドの型を新作するだけで量産性がありコスト的
にも安価に提供できる。Further, according to the bearing of the present invention, one end of the preload spring having the above structure is fitted and locked to the sealing plate. Therefore, mass production and cost reduction can be achieved only by newly forming a shield mold. Can be provided.
【図１】 本発明の一実施形態を示す断面図。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】 外輪側の係止状態を示す拡大断面図。FIG. 2 is an enlarged sectional view showing a locked state on the outer ring side.
【図３】 密封板の一部を拡大して示す正面図。FIG. 3 is an enlarged front view showing a part of a sealing plate.
【図４】 従来技術の断面図。FIG. 4 is a sectional view of a conventional technique.
１：外輪 ６：シールド（密封板） ７：外径部 ８：切欠き ９：予圧バネ １１：一端部 １２：他端部 １３，１４：係止部 １５：ハウジング １６：内側壁 １７：嵌合係止部 1: Outer ring 6: Shield (sealing plate) 7: Outer diameter part 8: Notch 9: Preload spring 11: One end part 12: Other end part 13, 14: Locking part 15: Housing 16: Inner wall 17: Fitting Locking part
Claims (1)
受であって、係止部を備えた両端部が、夫々軸方向反対
に向くように折り曲げ形成し、上記一端部を密封板に、
他端部をハウジングに夫々係合せしめて配される予圧バ
ネを備えたことを特徴とするクリープ防止転がり軸受。1. A rolling bearing comprising a sealing plate, wherein both end portions provided with a locking portion are bent and formed so as to face each other in the axial direction, and said one end portion is formed on the sealing plate.
An anti-creep rolling bearing, comprising a preload spring which is provided with the other end engaged with the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9203911A JPH1137152A (en) | 1997-07-15 | 1997-07-15 | Creep preventive rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9203911A JPH1137152A (en) | 1997-07-15 | 1997-07-15 | Creep preventive rolling bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1137152A true JPH1137152A (en) | 1999-02-09 |
Family
ID=16481743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9203911A Pending JPH1137152A (en) | 1997-07-15 | 1997-07-15 | Creep preventive rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1137152A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010190274A (en) * | 2009-02-17 | 2010-09-02 | Nsk Ltd | Rolling bearing device and method of preloading rolling bearing |
| JP2013019487A (en) * | 2011-07-12 | 2013-01-31 | Ntn Corp | Thrust bearing |
| JP2014040912A (en) * | 2012-07-25 | 2014-03-06 | Ntn Corp | Rotation transmitting device |
-
1997
- 1997-07-15 JP JP9203911A patent/JPH1137152A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010190274A (en) * | 2009-02-17 | 2010-09-02 | Nsk Ltd | Rolling bearing device and method of preloading rolling bearing |
| JP2013019487A (en) * | 2011-07-12 | 2013-01-31 | Ntn Corp | Thrust bearing |
| JP2014040912A (en) * | 2012-07-25 | 2014-03-06 | Ntn Corp | Rotation transmitting device |
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