JPH063227Y2 - Sealing device assembly - Google Patents
Sealing device assemblyInfo
- Publication number
- JPH063227Y2 JPH063227Y2 JP1988105164U JP10516488U JPH063227Y2 JP H063227 Y2 JPH063227 Y2 JP H063227Y2 JP 1988105164 U JP1988105164 U JP 1988105164U JP 10516488 U JP10516488 U JP 10516488U JP H063227 Y2 JPH063227 Y2 JP H063227Y2
- Authority
- JP
- Japan
- Prior art keywords
- device assembly
- sealing device
- sealing
- seal
- ring
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 5
- 239000000428 dust Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- 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
- F16C33/7859—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 further sealing element
-
- 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
- F16C33/80—Labyrinth sealings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、相互に回転する軸受などの二部材間の内部と
外部とを密封すべく、該二部材間に配置される密封装置
組立体に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a sealing device assembly disposed between two members such as bearings that rotate with each other so as to seal the inside and the outside. Regarding
［従来の技術］ 従来、この種の複数の密封材を組み合わせて形成する密
封構造としては、実公昭４０−１７１３１号のごとくの
ものが実施されており、これを図面によって説明する
と、第２図の様に、内輪１ａに嵌着され傾斜縁にシール
リップ３を持つシール環６と、該シール環６との間に小
間隙を設けてオイルシール７を外輪１ｂに嵌合した組合
せ構造を有している。[Prior Art] Conventionally, as a sealing structure formed by combining a plurality of sealing materials of this kind, a sealing structure as shown in Japanese Utility Model Publication No. 40-17131 has been implemented. As described above, there is a combination structure in which the oil ring 7 is fitted to the outer ring 1b with a small gap provided between the seal ring 6 fitted to the inner ring 1a and having the seal lip 3 on the inclined edge, and the seal ring 6. is doing.
この構造に求める作用としては、該シール環６を外輪１
ｂまたは内輪１ａに設けた段部２に臨ませることによっ
てオイルシール７に直接塵埃が接触することを防ぎその
耐久性を向上させることを期待している。The action required for this structure is that the seal ring 6 is attached to the outer ring 1
It is expected that the oil seal 7 can be prevented from coming into direct contact with dust and the durability thereof can be improved by exposing the oil seal 7 to the step 2 provided on the inner ring 1a or the inner ring 1a.
［考案が解決しようとする課題］ しかしながら、この構造は外部から侵入しようとする異
物・泥水等の遮断に対して有効であっても、内側の漏れ
出ようとするグリース等の潤滑剤に対しては何の防御手
段も持たないからこれを完全に密封するに至らず、この
漏洩を止めるためには各々のシールリップ３の緊締力を
増して密封力を高めるかあるいは設けるシールリップ３
の数量を増すなどして対処しており、何れも耐久性に悪
影響を及ぼす摺動トルクを高める構成を用いていた。[Problems to be solved by the invention] However, even if this structure is effective for blocking foreign matter and muddy water that try to enter from the outside, it does not prevent lubricant such as grease from leaking inside. Has no protection means, so it cannot be completely sealed, and in order to stop this leakage, the sealing force of each seal lip 3 is increased to increase the sealing force or the seal lip 3 is provided.
This is dealt with by increasing the number of items, etc., and in each case, a configuration that increases the sliding torque that adversely affects the durability was used.
本考案はこれらの欠点を除去し、高いシール性をもって
内部の潤滑剤の保持作用も合わせ持つ密封装置組立体を
提供することを目的としている。It is an object of the present invention to eliminate these drawbacks and to provide a sealing device assembly which has a high sealing property and also retains a lubricant inside.
［課題を解決するための手段］ 本考案は、第１図に示すように軸受等の相互に可動する
内輪１ａと外輪１ｂ間に装着されこの内部と外部とを密
封する二つの環状体Ａ１，Ａ２からなった密封装置組立
体Ａであって；前記二つの環状体Ａ１，Ａ２は該内輪１
ａと外輪１ｂに嵌着され対向した周面に接触する弾性体
からなったシールリップ３を有しており、この片方の環
状体（図ではＡ２）の側面に複数の突出条４を設け、も
う一方の環状体（図ではＡ１）の側面に前記突出条４の
間部５に摺接するアキシアルリップ３ａを設けたことを
特徴としている。[Means for Solving the Problems] As shown in FIG. 1, the present invention provides two annular bodies A1, which are mounted between mutually movable inner and outer rings 1a and 1b such as bearings to seal the inside and the outside. A sealing device assembly A comprising A2; said two annular bodies A1, A2 being said inner ring 1
a has a seal lip 3 made of an elastic body fitted to the outer ring 1b and in contact with the opposing peripheral surfaces, and a plurality of protruding ridges 4 are provided on the side surface of this one annular body (A2 in the figure), It is characterized in that an axial lip 3a is provided on the side surface of the other annular body (A1 in the figure) so as to be in sliding contact with the space 5 of the protruding strip 4.
［作用］ 本考案はこの様な構造をもって次に示す多くの優れた作
用を発揮する。[Operation] With this structure, the present invention exhibits many excellent operations described below.
ここで用いた複数の密封部材を組み合わせる密封装置組
立体Ａは、第１図の様に、片方の環状体Ａ１にアキシア
ルリップ３ａを追設し、他方の環状体Ａ２にこのアキシ
アルリップ３ａを両側から抱持する様に突出条４に設け
てラビリンス作用と接触密封作用を発揮させ完璧な密封
をなさしめたものである。As shown in FIG. 1, a sealing device assembly A combining a plurality of sealing members used here has an axial lip 3a additionally provided on one annular body A1 and both sides of this axial lip 3a on the other annular body A2. It is provided on the projecting strip 4 so as to be held from the inside, and exhibits a labyrinth action and a contact sealing action to achieve a perfect sealing.
すなわち、この様に二重構造の密封装置組立体Ａは、軸
受１の外側に位置する環状体Ａ２で外部からの塵埃・泥
水などに対処してこれを遮断し、内側に位置する環状体
Ａ１でさらなる密封作用と内部にある潤滑剤の漏出を防
いでいる。That is, in the sealing device assembly A having the double structure as described above, the ring-shaped body A2 located outside the bearing 1 blocks dust and muddy water from the outside to block them, and the ring-shaped body A1 located inside. Prevents further leakage of the lubricant inside.
しかし、内側の環状体Ａ１は外方に排出作用を持つリッ
プ形状を持っているため内部から漏れ出ようとする潤滑
剤に対して完全な密封構造とならず、二つの環状体Ａ
１，Ａ２間に多少の漏れを許した場合外側の環状体Ａ２
にまで達してしまう。このとき、外側の環状体Ａ２に設
けた二つの突出条４が流れようとする潤滑剤の堰となっ
てその流路を止める作用をなし、さらに軸方向に摺接す
るアキシアルリップ３ａが前記突出条４に挟まれたこと
によってラビリンス空間を形成しシール効果をも発揮す
るので内部に対し完璧な密封構造となる。However, since the inner ring-shaped body A1 has a lip shape having a discharging action to the outside, the ring-shaped body A1 does not have a complete sealing structure against the lubricant that leaks from the inside.
When some leakage is allowed between 1 and A2, outer ring A2
Will be reached. At this time, the two protruding strips 4 provided on the outer annular body A2 act as a weir for the lubricant that is about to flow, and have a function of stopping the flow path, and the axial lip 3a slidingly contacting the axial direction is the protruding strips. The labyrinth space is formed by being sandwiched between 4 and it also exerts a sealing effect, resulting in a perfect sealing structure for the inside.
勿論、該構造は外部の液体・異物に対しても前述したと
同様なリップ作用・堰作用・及びラビリンス作用をなし
その浸入経路を完全に遮断するので強力な密封構造とな
る。As a matter of course, the structure has the same lip action, weir action, and labyrinth action as described above even with respect to external liquids and foreign substances, and completely blocks the infiltration route, so that it becomes a strong sealing structure.
［実施例］ 本考案を実施するに、アキシアルリップ３ａ及び突出条
４を設ける数量あるいはこれの寸法に特別限定しないが
該突出条４は相手部材に接触してはならない。[Embodiment] In carrying out the present invention, the number of the axial lip 3a and the protruding strip 4 provided or the dimensions thereof are not particularly limited, but the protruding strip 4 must not contact the mating member.
また、前記アキシアルリップ３ａと突出条４はラビリン
ス作用を発生せしめる空間を多く保つことが肝要であり
それによって単に堰作用に留まらない優れた密封効果を
得ることができる。In addition, it is essential that the axial lip 3a and the protruding strip 4 have a large space for generating a labyrinth action, and thereby an excellent sealing effect that is not limited to the weir action can be obtained.
［考案の効果］ 以上の説明の様に、本考案は二部材からなる密封材の構
造を最大限に活用しその部材全ての部分を用いてラビリ
ンス効果と接触密封効果の二作用発揮せしめたもので、
回転トルクを高めることなく強密封を実現した画期的な
密封装置組立体である。[Effect of the Invention] As described above, the present invention makes the most of the structure of the sealant composed of two members and uses all parts of the member to exert the dual effects of the labyrinth effect and the contact sealing effect. so,
This is an epoch-making sealing device assembly that realizes strong sealing without increasing the rotation torque.
第１図は本考案の密封装置組立体を表した断面図であ
る。第２図は従来の密封装置の断面図である。 Ａ…密封装置組立体、Ａ１，Ａ２…環状体、１…軸受、
１ａ…内輪、１ｂ…外輪、３…シールリップ、３ａ…ア
キシアルリップ、４…突出条、５…間部FIG. 1 is a sectional view showing a sealing device assembly of the present invention. FIG. 2 is a sectional view of a conventional sealing device. A ... Sealing device assembly, A1, A2 ... Annular body, 1 ... Bearing,
1a ... inner ring, 1b ... outer ring, 3 ... seal lip, 3a ... axial lip, 4 ... protruding ridge, 5 ... intersection
Claims (1)
着され該二部材１ａ，１ｂの内部と外部とを密封する二
つの環状体Ａ１，Ａ２からなった密封装置組立体Ａであ
って、前記二つの環状体Ａ１，Ａ２は前記内輪１ａと外
輪１ｂに固定され対向した周面に接触するシールリップ
３を有しており、この片方の環状体Ａ１あるいはＡ２の
側面に複数の突出状４を設け、もう一方の環状体Ａ２あ
るいはＡ１の側面に前記突出条４の間部５に摺接するア
キシアルリップ３ａを設けたことを特徴とする密封装置
組立体。1. A sealing device assembly A comprising two annular members A1 and A2 mounted between mutually movable inner and outer rings 1a and 1b to seal the inside and outside of the two members 1a and 1b. The two annular bodies A1 and A2 have seal lips 3 that are fixed to the inner ring 1a and the outer ring 1b and come into contact with the opposing peripheral surfaces. A plurality of protruding portions are formed on the side surface of the one annular body A1 or A2. 4 is provided, and an axial lip 3a is provided on the side surface of the other annular body A2 or A1 so as to be in sliding contact with the space 5 of the protruding strip 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988105164U JPH063227Y2 (en) | 1988-08-08 | 1988-08-08 | Sealing device assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988105164U JPH063227Y2 (en) | 1988-08-08 | 1988-08-08 | Sealing device assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0225774U JPH0225774U (en) | 1990-02-20 |
| JPH063227Y2 true JPH063227Y2 (en) | 1994-01-26 |
Family
ID=31337530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988105164U Expired - Lifetime JPH063227Y2 (en) | 1988-08-08 | 1988-08-08 | Sealing device assembly |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH063227Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102046994A (en) * | 2008-05-27 | 2011-05-04 | 株式会社捷太格特 | Sealing device for rolling bearing |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8342535B2 (en) * | 2007-11-20 | 2013-01-01 | The Timken Company | Non-contact labyrinth seal assembly and method of construction thereof |
| JP5545210B2 (en) * | 2008-05-27 | 2014-07-09 | 日本精工株式会社 | Rolling bearing |
| JP2013142434A (en) | 2012-01-10 | 2013-07-22 | Showa Corp | Bearing structure |
| IT202200017073A1 (en) * | 2022-08-10 | 2024-02-10 | Skf Ab | BEARING UNIT WITH SEALING DEVICE |
-
1988
- 1988-08-08 JP JP1988105164U patent/JPH063227Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102046994A (en) * | 2008-05-27 | 2011-05-04 | 株式会社捷太格特 | Sealing device for rolling bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0225774U (en) | 1990-02-20 |
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