JPH09329243A - Sealing device - Google Patents
Sealing deviceInfo
- Publication number
- JPH09329243A JPH09329243A JP8166671A JP16667196A JPH09329243A JP H09329243 A JPH09329243 A JP H09329243A JP 8166671 A JP8166671 A JP 8166671A JP 16667196 A JP16667196 A JP 16667196A JP H09329243 A JPH09329243 A JP H09329243A
- Authority
- JP
- Japan
- Prior art keywords
- sealing device
- mounting groove
- sealing
- seal
- mounting
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/388—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with four rows, i.e. four row tapered roller bearings
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
-
- 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
- F16C33/768—Sealings of ball or roller bearings between relatively stationary parts, i.e. static seals
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、密封装置に係り、
更に詳しくは、ベアリング中間シールとして用いられる
のに適した密封装置に関する。TECHNICAL FIELD The present invention relates to a sealing device,
More particularly, it relates to a sealing device suitable for use as a bearing intermediate seal.
【０００２】[0002]
【従来の技術】ベアリング中間シールは、例えば図４に
示すベアリング装置５１において、軸方向に並べられた
複数のインナーレース５２，５３の間を密封するよう
に、インナーレース５２，５３の対向部内周面に設けら
れた環状の装着溝（インナーレース内周溝とも称する）
５４に装着されるものであって、従来、図５に示すよう
に構成されている。2. Description of the Related Art A bearing intermediate seal is, for example, in a bearing device 51 shown in FIG. 4, so as to seal between a plurality of inner races 52, 53 arranged in the axial direction, the inner circumferences of the facing portions of the inner races 52, 53. An annular mounting groove (also called inner race inner peripheral groove) provided on the surface
It is attached to 54 and is conventionally configured as shown in FIG.
【０００３】すなわち、装着溝５４内において一方のイ
ンナーレース５２の内周側に嵌着されるゴム状弾性材製
のシール本体５５に、他方のインナーレース５３に接触
するシールリップ５６が一体成形されており、またシー
ル本体５５を一方のインナーレース５２に強固に固定す
るように、シール本体５５の内部に金属製の補強環５７
が埋設されている。金属製の補強環５７はその機能から
して、容易に弾性変形しない剛性を備えており、よって
ばね性を備えていないものである。That is, in the mounting groove 54, a seal lip 55 which is in contact with the other inner race 53 is integrally formed on a seal body 55 made of a rubber-like elastic material which is fitted on the inner peripheral side of one inner race 52. In addition, a metal reinforcing ring 57 is provided inside the seal body 55 so that the seal body 55 is firmly fixed to one inner race 52.
Is buried. Due to its function, the metal reinforcing ring 57 has rigidity that does not easily elastically deform, and therefore does not have springiness.
【０００４】しかしながら上記従来の密封装置（ベアリ
ング中間シール）によると、金属製の補強環５７がばね
性を備えていないために、この密封装置をベアリング装
置５１に装着する際に、一方のインナーレース５２の装
着溝５４にその軸方向一方からプレスやハンマーを使用
して密封装置を打ち込む必要があり、よって複数のイン
ナーレース５２，５３を軸方向に並べる以前に打込み作
業を行なわなければならない。したがってベアリング装
置５１の組立手順が、打込み工程が先、並列工程が後と
言うように限られてしまい、よってこれを原因として、
装置組立の作業性が良くない問題がある。またハンマー
等による打込み作業には作業時間がかかり過ぎる問題が
あり、更に打込み時の打撃力によって補強環５７が歪ん
でしまう虞がある。However, according to the above-mentioned conventional sealing device (bearing intermediate seal), since the metal reinforcing ring 57 does not have a spring property, when the sealing device is mounted on the bearing device 51, one inner race is mounted. It is necessary to drive the sealing device into the mounting groove 54 of the shaft 52 from one side in the axial direction using a press or a hammer. Therefore, the driving operation must be performed before the plurality of inner races 52, 53 are arranged in the axial direction. Therefore, the assembly procedure of the bearing device 51 is limited such that the driving step is first and the parallel step is second.
There is a problem that the workability of device assembly is not good. In addition, there is a problem that the hammering work takes too much time, and the striking force at the time of driving may distort the reinforcing ring 57.
【０００５】[0005]
【発明が解決しようとする課題】本発明は以上の点に鑑
み、装着に際して打込み作業を必要とせず、もってベア
リング装置等の各種の装置に対して容易に装着すること
が可能な密封装置を提供することを目的とする。SUMMARY OF THE INVENTION In view of the above points, the present invention provides a sealing device which does not require a driving operation for mounting and can be easily mounted on various devices such as a bearing device. The purpose is to do.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明の請求項１による密封装置は、軸方向に並べ
られる複数のハウジングの対向部内周面に設けられる環
状の装着溝に装着される密封装置であって、前記装着溝
内において一方のハウジングに接触するシールリップお
よび他方のハウジングに接触するシールリップを一対以
上設けたゴム状弾性材製のシール部材と、前記シール部
材の内周部に装着される環状の保持部材と、を備え、前
記保持部材が、当該密封装置を前記装着溝にその内周側
から装着し、更に前記シール部材を前記装着溝内に固定
するためのばね性を備えていることにした。保持部材と
しては、請求項２に記載されているように、環状ピッチ
巻きスプリング、ばね性を備えた一箇所割り芯金または
ばね性を備えた円筒状金環が好適である。In order to achieve the above object, a sealing device according to claim 1 of the present invention is mounted in an annular mounting groove provided on inner peripheral surfaces of opposed portions of a plurality of axially arranged housings. A sealing device made of a rubber-like elastic material having a pair of seal lips that come into contact with one housing and another seal lip that comes into contact with the other housing in the mounting groove, and an inner circumference of the seal member. An annular holding member to be mounted on the mounting portion, wherein the holding member mounts the sealing device in the mounting groove from the inner peripheral side thereof, and further fixes the sealing member in the mounting groove. I decided to have sex. As the holding member, as described in claim 2, an annular pitch-wound spring, a one-way split core bar having a spring property, or a cylindrical metal ring having a spring property is suitable.
【０００７】[0007]
【作用】上記構成を備えた本発明の請求項１による密封
装置においては、保持部材が上記した所要のばね性を備
えているために、この保持部材およびゴム状弾性材製の
シール部材よりなる密封装置全体が可撓性を備えてい
て、弾性変形可能である。したがってこの密封装置を装
着溝に装着する際には、密封装置の外径寸法が一時的に
ハウジングの内径寸法より小さくなるように、密封装置
を軸方向から見て略ハート状に弾性変形させ、この状態
で装着溝の内周側に挿入し、次いで密封装置を変形およ
び縮径させていた力を取り除くと、密封装置が環状（軸
方向から見て円形）に弾性復帰し、装着溝に装着され
る。したがって複数のハウジングを軸方向に並べてから
密封装置の装着作業を行なうことが可能となり、よって
装置組立手順の自由度が増大し、その作業性を向上させ
ることができる。In the sealing device according to the first aspect of the present invention having the above-mentioned structure, since the holding member has the required spring property described above, the holding member and the sealing member made of a rubber-like elastic material are used. The entire sealing device is flexible and elastically deformable. Therefore, when mounting the sealing device in the mounting groove, the sealing device is elastically deformed into a substantially heart shape when viewed from the axial direction so that the outer diameter of the sealing device is temporarily smaller than the inner diameter of the housing. In this state, insert it into the inner circumference of the mounting groove, and then remove the force that deformed and reduced the diameter of the sealing device, and the sealing device will elastically return to an annular shape (circular shape when viewed from the axial direction) and will be mounted in the mounting groove. To be done. Therefore, it becomes possible to perform the mounting operation of the sealing device after arranging the plurality of housings in the axial direction, so that the degree of freedom in the device assembling procedure is increased and the workability thereof can be improved.
【０００８】また装着後、ゴム状弾性材製のシール部材
が保持部材のばね性に押されて装着溝内に固定され、こ
のシール部材に一対以上設けられたシールリップがそれ
ぞれハウジングに密着するために、必要十分な密封効果
を確保することが可能となる。After the mounting, the rubber-like elastic sealing member is pressed by the spring property of the holding member to be fixed in the mounting groove, and the sealing lips provided in a pair or more on the sealing member come into close contact with the housing. In addition, it becomes possible to secure the necessary and sufficient sealing effect.
【０００９】[0009]
【発明の実施の形態】本発明の密封装置は、図４に例示
したベアリング装置に装着されるベアリング中間シール
として用いられるのが好適であり、この場合、請求項１
の記載内容が以下のように換言される。BEST MODE FOR CARRYING OUT THE INVENTION The sealing device of the present invention is preferably used as a bearing intermediate seal mounted on the bearing device illustrated in FIG.
In other words, the description content of the above is paraphrased as follows.
【００１０】すなわち「軸方向に並べられる複数のベア
リングのインナーレースの対向部内周面に設けられる環
状の装着溝に装着されるベアリング中間シールであっ
て、装着溝内において一方のインナーレースに接触する
シールリップおよび他方のインナーレースに接触するシ
ールリップを一対以上設けたゴム状弾性材製のシール部
材と、このシール部材の内周部に装着される環状の保持
部材と、を備え、後者の保持部材が、当該密封装置を装
着溝にその内周側から装着し、更にシール部材を装着溝
内に固定するためのばね性を備えている。」That is, "a bearing intermediate seal fitted in an annular mounting groove provided on the inner peripheral surface of the facing portion of the inner races of a plurality of bearings arranged in the axial direction, and contacting one inner race in the mounting groove. A seal member made of a rubber-like elastic material, which is provided with a pair of seal lips and a pair of seal lips that come into contact with the other inner race, and an annular holding member attached to the inner peripheral portion of the seal member, the latter holding The member has a spring property for mounting the sealing device in the mounting groove from the inner peripheral side thereof and further for fixing the sealing member in the mounting groove. "
【００１１】また、これに請求項２に記載された保持部
材の例示を加えると、請求項１の記載内容が更に、以下
のように換言される。When the holding member described in claim 2 is added to this, the description of claim 1 is further translated as follows.
【００１２】すなわち「軸方向に並べられる複数のベア
リングのインナーレースの対向部内周面に設けられる環
状の装着溝に装着されるベアリング中間シールであっ
て、装着溝内において一方のインナーレースに接触する
シールリップおよび他方のインナーレースに接触するシ
ールリップを一対以上設けたゴム状弾性材製のシール部
材と、このシール部材の内周部に装着される環状ピッチ
巻きスプリング、ばね性を備えた一箇所割り芯金または
ばね性を備えた円筒状金環と、を備え、後者の環状ピッ
チ巻きスプリング、一箇所割り芯金または円筒状金環
が、当該密封装置を装着溝にその内周側から装着し、更
にシール部材を装着溝内に固定するためのばね性を備え
ている。」That is, "a bearing intermediate seal mounted in an annular mounting groove provided on the inner peripheral surface of the facing portion of the inner races of a plurality of bearings arranged in the axial direction, which contacts one inner race in the mounting groove. A seal member made of a rubber-like elastic material provided with a pair of seal lips and a pair of seal lips that come into contact with the other inner race, an annular pitch-wound spring mounted on the inner peripheral portion of the seal member, and a single point having springiness A split metal core or a cylindrical metal ring having a spring property, and the latter annular pitch wound spring, one-place split metal core or cylindrical metal ring, the sealing device is mounted in the mounting groove from its inner peripheral side, Furthermore, it has a spring property for fixing the seal member in the mounting groove. "
【００１３】尚、ベアリング装置の具体例としては、鉄
鋼圧延用のベアリング装置等を挙げることができ、また
その種類として、コロ軸受またはテーパコロ軸受等を挙
げることができる。As a specific example of the bearing device, a bearing device for rolling steel can be cited, and as its type, a roller bearing or a tapered roller bearing can be cited.
【００１４】[0014]
【実施例】つぎに本発明の実施例を図面にしたがって説
明する。Next, an embodiment of the present invention will be described with reference to the drawings.
【００１５】第一実施例・・・図１に示すように、環状
を呈するゴム状弾性材製のシール部材１が断面略台形状
に成形されており、軸方向一対の斜面１ａ，１ｂにそれ
ぞれ、装着溝５４の底壁部に接触する環状のシールリッ
プ２，３が一体成形され、同じく斜面１ａ，１ｂの内周
部にそれぞれ、装着溝５４の側壁部に接触する環状のシ
ール突起４，５が一体成形され、装着溝５４の底壁部に
対するシール部材１の着座面となる外周面１ｃの軸方向
両端部にそれぞれ、装着溝５４の底壁部に接触する環状
のシール突起６，７が一体成形されている。図上左側の
シールリップ２およびシール突起４，６が接触するの
は、一方のハウジングとしてのベアリング装置の一方の
インナーレース５２であり、これに対して図上右側のシ
ールリップ３、およびシール突起５，７が接触するの
は、他方のハウジングとしてのベアリング装置の他方の
インナーレース５３である。First Embodiment: As shown in FIG. 1, a seal member 1 made of a rubber-like elastic material having an annular shape is formed into a substantially trapezoidal cross section, and is formed on a pair of axially inclined surfaces 1a and 1b, respectively. The annular seal lips 2 and 3 that come into contact with the bottom wall of the mounting groove 54 are integrally formed, and the annular seal projections 4 that come into contact with the side walls of the mounting groove 54 are also formed on the inner peripheral portions of the slopes 1a and 1b, respectively. 5 are integrally formed, and annular seal projections 6 and 7 which come into contact with the bottom wall of the mounting groove 54 are respectively formed at both axial end portions of the outer peripheral surface 1c which is a seating surface of the seal member 1 with respect to the bottom wall of the mounting groove 54. Are integrally molded. The seal lip 2 on the left side of the drawing and the seal projections 4 and 6 come into contact with one inner race 52 of the bearing device as one housing, while the seal lip 3 on the right side of the drawing and the seal projections are in contact with each other. It is the inner race 53 on the other side of the bearing device as the other housing that is in contact with 5 and 7.
【００１６】また上記した台形の長辺であるシール部材
１の内周面１ｄに環状の嵌着溝８が形成されており、こ
の嵌着溝８に環状ピッチ巻きスプリング９が嵌着され、
この環状ピッチ巻きスプリング９が、当該密封装置を装
着溝５４にその内周側から装着し、更にシール部材１を
装着溝５４内に固定するためのばね性を備えている。す
なわち、環状ピッチ巻きスプリング９は環状のコイルス
プリングであって、この環状ピッチ巻きスプリング９が
上記したばね性を備えているために、以下の作用が発揮
される。An annular fitting groove 8 is formed on the inner peripheral surface 1d of the seal member 1 which is the long side of the trapezoid described above, and an annular pitch winding spring 9 is fitted in the fitting groove 8.
The annular pitch winding spring 9 has a spring property for mounting the sealing device in the mounting groove 54 from the inner peripheral side thereof and further for fixing the seal member 1 in the mounting groove 54. That is, since the annular pitch winding spring 9 is an annular coil spring and the annular pitch winding spring 9 has the above-mentioned spring property, the following effects are exhibited.
【００１７】 当該密封装置を装着溝５４に装着する
際に、この密封装置の外径寸法が一時的にインナーレー
ス５２，５３の内径寸法より小さくなるように、密封装
置を軸方向から見て略ハート状に弾性変形させることが
可能となる。したがってこのように密封装置を弾性変形
させた状態で装着溝５４の内周側に挿入し、次いで密封
装置を変形および縮径させていた力を取り除くと、密封
装置が環状（軸方向から見て円形）に弾性復帰し、装着
溝５４に装着される。 環状ピッチ巻きスプリング９の装着状態における径
寸法をその自由状態における径寸法より小さく設定する
ことにより、環状ピッチ巻きスプリング９がシール部材
１を装着溝５４の内壁に押し付ける。したがってこれに
よりシール部材１が装着溝５４内に固定されて、着座面
である外周面１ｃが装着溝５４の底壁部に着座するとと
もに、シールリップ２，３およびシール突起４，５，
６，７がそれぞれ装着溝５４の底壁部または側壁部に密
着することになる。When the sealing device is mounted in the mounting groove 54, the sealing device is viewed from the axial direction so that the outer diameter of the sealing device is temporarily smaller than the inner diameter of the inner races 52 and 53. It can be elastically deformed into a heart shape. Therefore, when the sealing device is elastically deformed in this way and is inserted into the inner peripheral side of the mounting groove 54, and then the force that has deformed and reduced the diameter of the sealing device is removed, the sealing device becomes annular (viewed from the axial direction). It elastically returns to a circular shape and is mounted in the mounting groove 54. By setting the diameter of the annular pitch winding spring 9 in the mounted state to be smaller than that in the free state thereof, the annular pitch winding spring 9 presses the seal member 1 against the inner wall of the mounting groove 54. Therefore, the seal member 1 is thereby fixed in the mounting groove 54, the outer peripheral surface 1c, which is the seating surface, is seated on the bottom wall portion of the mounting groove 54, and the seal lips 2, 3 and the seal projections 4, 5, 5 are formed.
6 and 7 are in close contact with the bottom wall portion or the side wall portion of the mounting groove 54, respectively.
【００１８】また図示したように、環状ピッチ巻きスプ
リング９を嵌着した嵌着溝８は蟻溝状であって、すなわ
ちその開口部の軸方向幅ｗ1 がその奥部の軸方向幅ｗ2
より小さく成形されており、よってここに嵌着した環状
ピッチ巻きスプリング９がシール部材１に対して外れに
くいようになっている。また同じく図示したように、当
該密封装置は全体として軸方向に対称的な構造であり、
よってその装着に際して軸方向の向きを問われないよう
になっている。Further, as shown in the drawing, the fitting groove 8 into which the annular pitch winding spring 9 is fitted has a dovetail groove shape, that is, the axial width w 1 of the opening portion thereof is the axial width w 2 of the inner portion thereof.
It is formed smaller, so that the annular pitch winding spring 9 fitted therein is less likely to come off from the seal member 1. As also shown in the figure, the sealing device has an axially symmetrical structure as a whole,
Therefore, it is possible to mount the device in any axial direction.
【００１９】上記構成を備えた密封装置においては、環
状ピッチ巻きスプリング９が上記した所要のばね性を備
えているために、この環状ピッチ巻きスプリング９およ
びゴム状弾性材製のシール部材１よりなる密封装置全体
が可撓性を備えていて、作業者が手指で力を加えると、
容易に弾性変形させることが可能である。したがってこ
の密封装置を装着溝５４に装着する際に、密封装置の外
径寸法が一時的にインナーレース５２，５３の内径寸法
より小さくなるように、密封装置を軸方向から見て略ハ
ート状に弾性変形させ、この状態で装着溝５４の内周側
に挿入し、次いで密封装置を変形および縮径させていた
力を取り除くと、密封装置が環状（軸方向から見て円
形）に弾性復帰し、装着溝５４に装着される。したがっ
て複数のインナーレース５２，５３を軸方向に並べてか
ら密封装置の装着作業を行なうことが可能となり、よっ
て装置組立手順の自由度が増大し、その作業性を向上さ
せることができる。また従来のような打込み作業が不要
であるために、作業時間を短縮することができ、環状ピ
ッチ巻きスプリング９が歪む虞もない。また更に装着
後、シール部材１が環状ピッチ巻きスプリング９のばね
性に押されて装着溝５４内に固定され、着座面である外
周面１ｃが装着溝５４の底壁部に着座するとともに、シ
ールリップ２，３およびシール突起４，５，６，７がそ
れぞれ装着溝５４の底壁部または側壁部に密着するた
め、これにより必要十分な密封効果を長期間に亙って確
保することができる。In the sealing device having the above structure, since the annular pitch winding spring 9 has the required spring properties described above, the annular pitch winding spring 9 and the sealing member 1 made of a rubber-like elastic material are used. The entire sealing device is flexible, and when the operator applies force with his fingers,
It can be easily elastically deformed. Therefore, when the sealing device is mounted in the mounting groove 54, the sealing device has a substantially heart shape when viewed in the axial direction so that the outer diameter of the sealing device is temporarily smaller than the inner diameter of the inner races 52 and 53. By elastically deforming and inserting in this state into the inner peripheral side of the mounting groove 54, and then removing the force that has deformed and reduced the diameter of the sealing device, the sealing device elastically returns to an annular shape (a circular shape when viewed from the axial direction). , Is mounted in the mounting groove 54. Therefore, it becomes possible to arrange the plurality of inner races 52, 53 in the axial direction before the mounting work of the sealing device, thereby increasing the degree of freedom in the procedure for assembling the device and improving its workability. Further, since the driving work as in the prior art is unnecessary, the working time can be shortened and the annular pitch winding spring 9 is not likely to be distorted. Further, after the mounting, the seal member 1 is pressed by the elasticity of the annular pitch winding spring 9 and fixed in the mounting groove 54, and the outer peripheral surface 1c, which is a seating surface, is seated on the bottom wall portion of the mounting groove 54, and the seal is formed. Since the lips 2, 3 and the sealing protrusions 4, 5, 6, 7 are in close contact with the bottom wall portion or the side wall portion of the mounting groove 54, respectively, a necessary and sufficient sealing effect can be secured for a long period of time. .
【００２０】上記した第一実施例に係る密封装置は、そ
の構成を以下のように変更することが可能である。The structure of the sealing device according to the first embodiment described above can be changed as follows.
【００２１】第二実施例・・・上記第一実施例における
環状ピッチ巻きスプリング９に代えて、図２に示すよう
に、ばね性を備えた一箇所割り芯金１０をシール部材１
の内周面１ｄに設けた嵌着溝８に嵌着する。この芯金１
０は断面略円形状を呈する剛材製のリングであって、円
周状の一箇所がカットされて、ここに割り部１１が設け
られており、よってこれにより所要のばね性を発揮する
よう弾性変形することが可能である。Second Embodiment: In place of the annular pitch winding spring 9 in the first embodiment, as shown in FIG. 2, a one-piece split core bar 10 having a spring property is used as the seal member 1.
It is fitted in the fitting groove 8 provided on the inner peripheral surface 1d. This core metal 1
Reference numeral 0 is a ring made of a rigid material having a substantially circular cross section, and one portion of the circumference is cut, and a split portion 11 is provided there, so that a desired spring property can be exhibited. It can be elastically deformed.
【００２２】第三実施例・・・上記第一実施例における
環状ピッチ巻きスプリング９に代えて、図３に示すよう
に、ばね性を備えた円筒状金環１２をシール部材１の内
周面１ｄに設けた断面略矩形状の嵌着溝８に嵌着する。
この金環１２は剛材製の円筒体であって、その肉厚が薄
く成形されていることにより、またはその材質が軟質の
金属または樹脂等であることにより、所要のばね性を発
揮するよう弾性変形することが可能である。Third Embodiment In place of the annular pitch winding spring 9 in the first embodiment, as shown in FIG. 3, a cylindrical metal ring 12 having a spring property is used as an inner peripheral surface 1d of the seal member 1. It is fitted into the fitting groove 8 having a substantially rectangular cross section.
The metal ring 12 is a cylindrical body made of a rigid material, and is elastic so as to exhibit a required spring property because the wall thickness is formed thin or the material is a soft metal or resin. It can be transformed.
【００２３】[0023]
【発明の効果】本発明は、以下の効果を奏する。The present invention has the following effects.
【００２４】すなわち、上記構成を備えた本発明の請求
項１または２による密封装置においては、環状ピッチ巻
きスプリング、ばね性を備えた一箇所割り芯金またはば
ね性を備えた円筒状金環に例示される保持部材が、当該
密封装置を装着溝にその内周側から装着し、更にシール
部材を装着溝内に固定するためのばね性を備えているた
めに、この保持部材およびゴム状弾性材製のシール部材
よりなる密封装置全体が可撓性を備えていて、弾性変形
可能である。したがってこの密封装置を装着溝に装着す
る際に、複数のハウジングを軸方向に並べてから密封装
置の装着作業を行なうことが可能となり、よって装置組
立手順の自由度が増大し、その作業性を向上させること
ができる。また従来のような打込み作業が不要であるた
めに、作業時間を短縮することができ、保持部材が歪む
虞もない。また更に装着後、シール部材が保持部材のば
ね性に押されて装着溝内に固定され、シール部材に一対
以上設けられたシールリップがそれぞれハウジングに密
着するために、必要十分な密封効果を長期間に亙って確
保することができる。That is, in the sealing device according to claim 1 or 2 of the present invention having the above structure, an annular pitch winding spring, a one-way split core bar having a spring property or a cylindrical metal ring having a spring property is exemplified. Since the holding member has a spring property for mounting the sealing device in the mounting groove from the inner peripheral side thereof and further fixing the sealing member in the mounting groove, the holding member and the rubber-like elastic material are provided. The entire sealing device made of a sealing member made of plastic is flexible and elastically deformable. Therefore, when mounting the sealing device in the mounting groove, it is possible to align the plurality of housings in the axial direction before mounting the sealing device, thereby increasing the flexibility of the device assembly procedure and improving the workability. Can be made. Moreover, since the conventional driving operation is unnecessary, the working time can be shortened and the holding member is not likely to be distorted. Further, after the mounting, the sealing member is pressed by the spring property of the holding member and fixed in the mounting groove, and the seal lips provided on the sealing member in a pair or more closely adhere to the housing, so that the necessary and sufficient sealing effect can be obtained. Can be secured over a period of time.
【図１】本発明の第一実施例に係る密封装置の要部断面
図FIG. 1 is a sectional view of a main part of a sealing device according to a first embodiment of the present invention.
【図２】本発明の第二実施例に係る密封装置の要部断面
図FIG. 2 is a sectional view of an essential part of a sealing device according to a second embodiment of the present invention.
【図３】本発明の第三実施例に係る密封装置の要部断面
図FIG. 3 is a sectional view of an essential part of a sealing device according to a third embodiment of the present invention.
【図４】ベアリング装置の半裁断面図FIG. 4 is a half cutaway view of the bearing device.
【図５】従来例に係る密封装置の要部断面図FIG. 5 is a sectional view of a main part of a sealing device according to a conventional example.
１ シール部材 １ａ，１ｂ 斜面 １ｃ 外周面 １ｄ 内周面 ２，３ シールリップ ４，５，６，７ シール突起 ８ 嵌着溝 ９ 環状ピッチ巻きスプリング １０ 一箇所割り芯金 １１ 割り部 １２ 円筒状金環 ５１ ベアリング装置 ５２，５３ インナーレース ５４ 装着溝 DESCRIPTION OF SYMBOLS 1 Seal member 1a, 1b Sloping surface 1c Outer peripheral surface 1d Inner peripheral surface 2,3 Seal lip 4,5,6,7 Seal protrusion 8 Fitting groove 9 Annular pitch winding spring 10 Single split core bar 11 Split part 12 Cylindrical ring 51 bearing device 52, 53 inner race 54 mounting groove
Claims (2)
対向部内周面に設けられる環状の装着溝（５４）に装着
される密封装置であって、 前記装着溝（５４）内において一方のハウジングに接触
するシールリップ（２）および他方のハウジングに接触
するシールリップ（３）を一対以上設けたゴム状弾性材
製のシール部材（１）と、前記シール部材（１）の内周
部に装着される環状の保持部材と、を備え、 前記保持部材が、当該密封装置を前記装着溝（５４）に
その内周側から装着し、更に前記シール部材（１）を前
記装着溝（５４）内に固定するためのばね性を備えてい
ることを特徴とする密封装置。1. A sealing device to be mounted in an annular mounting groove (54) provided on the inner peripheral surfaces of facing portions of a plurality of housings arranged in the axial direction, wherein one housing is provided in the mounting groove (54). A seal member (1) made of a rubber-like elastic material provided with a pair of contacting seal lips (2) and a pair of seal lips (3) contacting the other housing, and an inner peripheral portion of the seal member (1). And an annular holding member for mounting the sealing device in the mounting groove (54) from the inner peripheral side thereof, and further for mounting the sealing member (1) in the mounting groove (54). A sealing device having a spring property for fixing.
を備えた一箇所割り芯金（１０）またはばね性を備えた
円筒状金環（１２）であることを特徴とする密封装置。2. The sealing device according to claim 1, wherein the holding member is an annular pitch wound spring (9), a one-way split core bar (10) having a spring property, or a cylindrical metal ring (12) having a spring property. A sealing device characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8166671A JPH09329243A (en) | 1996-06-07 | 1996-06-07 | Sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8166671A JPH09329243A (en) | 1996-06-07 | 1996-06-07 | Sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09329243A true JPH09329243A (en) | 1997-12-22 |
Family
ID=15835576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8166671A Pending JPH09329243A (en) | 1996-06-07 | 1996-06-07 | Sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09329243A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6345914B1 (en) | 1999-07-16 | 2002-02-12 | Nsk Ltd. | Sealed rolling bearing with centrifugal feature |
| US6457870B2 (en) | 1998-07-29 | 2002-10-01 | Nsk Ltd. | Sealed rolling bearing |
| JP2008075679A (en) * | 2006-09-19 | 2008-04-03 | Nok Corp | Sealing device |
| WO2008050759A1 (en) * | 2006-10-24 | 2008-05-02 | Jtekt Corporation | Sealing device and rolling bearing device |
| CN108757746A (en) * | 2018-05-07 | 2018-11-06 | 西安航空制动科技有限公司 | A kind of interior oil scraper ring for aircraft bearing |
| CN111733407A (en) * | 2020-06-30 | 2020-10-02 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Method for avoiding raceway phosphorization during cylindrical bearing outer ring phosphorization |
-
1996
- 1996-06-07 JP JP8166671A patent/JPH09329243A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6457870B2 (en) | 1998-07-29 | 2002-10-01 | Nsk Ltd. | Sealed rolling bearing |
| US6345914B1 (en) | 1999-07-16 | 2002-02-12 | Nsk Ltd. | Sealed rolling bearing with centrifugal feature |
| DE10033954B4 (en) * | 1999-07-16 | 2005-10-13 | Nsk Ltd. | roller bearing |
| JP2008075679A (en) * | 2006-09-19 | 2008-04-03 | Nok Corp | Sealing device |
| WO2008050759A1 (en) * | 2006-10-24 | 2008-05-02 | Jtekt Corporation | Sealing device and rolling bearing device |
| JP2008106824A (en) * | 2006-10-24 | 2008-05-08 | Jtekt Corp | Sealing device and rolling bearing device |
| US8226298B2 (en) | 2006-10-24 | 2012-07-24 | Jtekt Corporation | Sealing device and rolling bearing apparatus |
| CN108757746A (en) * | 2018-05-07 | 2018-11-06 | 西安航空制动科技有限公司 | A kind of interior oil scraper ring for aircraft bearing |
| CN111733407A (en) * | 2020-06-30 | 2020-10-02 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Method for avoiding raceway phosphorization during cylindrical bearing outer ring phosphorization |
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