JPH0547900Y2 - - Google Patents
Info
- Publication number
- JPH0547900Y2 JPH0547900Y2 JP1988096597U JP9659788U JPH0547900Y2 JP H0547900 Y2 JPH0547900 Y2 JP H0547900Y2 JP 1988096597 U JP1988096597 U JP 1988096597U JP 9659788 U JP9659788 U JP 9659788U JP H0547900 Y2 JPH0547900 Y2 JP H0547900Y2
- Authority
- JP
- Japan
- Prior art keywords
- sealing
- lip
- seal lip
- annular
- annular groove
- 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 claims description 27
- 230000013011 mating Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004610 Internal Lubricant Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000003466 welding Methods 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
- F16J15/3256—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals
- F16J15/3264—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals the elements being separable from each other
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (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けなどの二部材
間の内部と外部とを密封すべく、該二部材間に配
置される複数の部材から成つた密封装置組立体に
関する。[Detailed description of the invention] [Field of industrial application] The present invention is based on a plurality of members arranged between two members such as mutually rotating bearings in order to seal the inside and outside of the space between the two members. The present invention relates to a sealing device assembly.
［従来の技術］
従来、この種の密封装置組立体としては、図面
によつて説明すると、第３図のごとく、Ｌ字形シ
ール環Ｂ１と逆Ｌ字形シール環Ｂ２とを組み合わ
せ、これらのシール環Ｂ１，Ｂ２に１個または複
数個のシールリツプ３を設けて密封体Ｂを構成し
ており、ベアリング内部よりの潤滑剤の漏れや、
あるいは外部からの塵埃や泥水等の侵入を防ぐシ
ール材として使用されていた。[Prior Art] Conventionally, this type of sealing device assembly has been constructed by combining an L-shaped seal ring B1 and an inverted L-shaped seal ring B2, as shown in FIG. One or more seal lips 3 are provided on B1 and B2 to form a sealed body B, which prevents lubricant from leaking from inside the bearing.
It was also used as a sealing material to prevent dust, muddy water, etc. from entering from the outside.
［考案が解決しようとする課題］
しかしながら、このような密封体Ｂは外部より
侵入しようとする塵埃、泥水等をシールリツプ３
の摺動部分で密封するが、ベアリングの停止時お
よび停止から運転を始めるとき、該シールリツプ
３ａはその摺動面に何の防御手段も持たないから
堆積した異物を噛み込み易く、こうなると摩耗量
を増大させるばかりでなく発熱まで起こしシール
性と耐久性に重大な悪影響を及ぼす欠点を有して
いた。[Problems to be solved by the invention] However, such a sealing body B prevents dust, muddy water, etc. from entering from the outside into the seal lip 3.
However, when the bearing is stopped and when the bearing is started from a stopped state, the seal lip 3a has no protective means on its sliding surface, so it is easy to catch accumulated foreign matter, and when this happens, the amount of wear increases. This has the drawback that it not only increases the heat resistance but also generates heat, which has a serious negative effect on sealing performance and durability.
また、該摺接面は平滑な周面を利用するため密
封能力を持つ空間が周切部分に限られ、いかにも
密封効率の悪いものであつた。 Further, since the sliding surface utilizes a smooth circumferential surface, the space capable of sealing is limited to the circumferential portion, resulting in poor sealing efficiency.
本考案はこれらの欠点を除去し、シール性を飛
躍的に高め、しかもリツプ摺動部のクリーン化を
成して大きく耐久性の向上を図つた密封装置組立
体を提供するものである。 The present invention eliminates these drawbacks and provides a sealing device assembly that dramatically improves the sealing performance and also has a clean lip sliding section, greatly improving durability.
［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、相互に可動す
る内輪１と外輪２間に装着され、該二部材１，２
の内部と外部とを密封する密封装置組立体Ａであ
つて、前記内輪１に固定される断面略Ｌ字形状の
環状要素Ａ１と外輪２に固定される断面略Ｌ形状
の環状要素Ａ２からなり、これらの環状要素Ａ
１，Ａ２の片方あるいは両方に互いに摺接する弾
性体ａで形成されたシールリツプ３を設け、該シ
ールリツプ３のラジアルリツプ３ａが摺接する相
手側の環状要素Ａ１（またはＡ２）の該リツプ接
触部を環状溝４に形成したことを特徴としてい
る。[Means for Solving the Problems] As shown in FIG.
A sealing device assembly A for sealing the inside and outside of the device, which comprises an annular element A1 having a substantially L-shaped cross section fixed to the inner ring 1 and an annular element A2 having a substantially L-shaped cross section fixed to the outer ring 2. , these annular elements A
A seal lip 3 formed of an elastic body a that slides on one or both of the seal lips 1 and A2 is provided, and the lip contact portion of the mating annular element A1 (or A2) with which the radial lip 3a of the seal lip 3 slides is formed into an annular groove. It is characterized by being formed into 4.
［作用］
本考案はこのような構造をもつて次に示す多く
の優れた作用を発揮する。[Function] With this structure, the present invention exhibits many excellent functions as shown below.
すなわち、ここで用いた複数の部材を組み合わ
せて密封を図る密封装置組立体Ａは、個々の部品
の仕上がり精度と組み付け精度に優れており、内
部に備えたシールリツプ３によつて高い密封性能
を期待しうるものである。 In other words, the sealing device assembly A used here, which achieves sealing by combining multiple parts, has excellent finishing accuracy and assembly accuracy of the individual parts, and is expected to have high sealing performance due to the seal lip 3 provided inside. It is possible.
本考案は、前記シールリツプ３におけるラジア
ルリツプ３ａの相手側摺動部に、第１図のごとく
環状溝４を形成したものであり、該環状溝４とこ
れの内部に摺接するラジアルリツプ３ａとでその
内・外部に広範囲の狭空間を形成している。この
狭空間は密封性に極めて有効な長い迷路状のラビ
リンス間隙となつており、内部の潤滑剤の漏れを
防ぐと共に外部からの異物の侵入をも防止するか
らここで接触するラジアルリツプ３ａと相まつて
確実な密封効果を期待しうるものとなつた。 In the present invention, an annular groove 4 is formed in the sliding portion of the seal lip 3 on the other side of the radial lip 3a, as shown in FIG.・A wide narrow space is formed outside. This narrow space is a long maze-like labyrinth gap that is extremely effective for sealing, and it prevents the internal lubricant from leaking and also prevents foreign matter from entering from the outside. A reliable sealing effect can be expected.
特に、該環状溝４を第１図のように外部側に位
置するラジアルリツプ３ａと組み合わせしめる
と、前記した異物の排除作用から密封材として好
ましい構造となり、さらにこの密封装置組立体Ａ
では他部にもシールリツプ３を備えておりその
各々が与えられた機能を働かすので全体として強
力な密封性能を有するものとなる。 In particular, when the annular groove 4 is combined with the radial lip 3a located on the outside as shown in FIG.
The other parts are also provided with seal lips 3, each of which performs a given function, resulting in a strong sealing performance as a whole.
［実施例］
本考案を実施するに、ラジアルリツプ３ａと組
み合わせる環状溝４は、第１図の様に１箇所に限
るものでなく複数個形成しても差し支えないが、
何れも環状要素Ａ１，Ａ２の軸方にある周面に設
けることが密封性・組み付け性から望ましい構造
となる。[Embodiment] In carrying out the present invention, the annular groove 4 to be combined with the radial lip 3a is not limited to one location as shown in FIG. 1, but may be formed in a plurality of locations.
A desirable structure is to provide both on the circumferential surfaces in the axial direction of the annular elements A1 and A2 from the viewpoint of sealability and ease of assembly.
この環状溝４の形成においては、刻接・圧接な
どして造形するか、あるいは十分な溝深さが得ら
れない場合などには第２図のように、リツプ接触
部近傍の両周端を突出せしめて環状溝４とするこ
ともでき、また、シールリツプ３を形成する弾性
体ａを該環状溝４内まで延接せしめこの界面にラ
ジアルリツプ３ａを接触せしめる構造とすれば、
該摺動部のなじみ性が大きく向上し密封力をさら
に高めることができる。 In forming this annular groove 4, it can be formed by engraving or pressure welding, or if a sufficient groove depth cannot be obtained, as shown in Fig. 2, both peripheral edges near the lip contact area can be formed. It can also be made to protrude to form an annular groove 4, and if the elastic body a forming the seal lip 3 is extended into the annular groove 4 and the radial lip 3a is brought into contact with this interface,
The conformability of the sliding portion is greatly improved, and the sealing force can be further increased.
［考案の効果］
本考案はこのように、多くのラビリンス空間を
形成して低回転トルクと高い密封力および強い耐
久力を得、長期にわたつて安定したシール性能を
発揮すると共に苛酷な条件下でも満足できる密封
力を持つ理想的な密封装置組立体である。[Effects of the invention] As described above, the present invention forms many labyrinth spaces to obtain low rotational torque, high sealing force, and strong durability, exhibits stable sealing performance over a long period of time, and is resistant to harsh conditions. However, it is an ideal sealing device assembly with a satisfactory sealing force.
第１図は本考案の密封装置組立体の断面図であ
る。第２図は本考案の他の実施例を表した拡大断
面図である。第３図は従来の密封体を表した断面
図である。
Ａ……密封装置組立体、Ａ１，Ａ２……環状要
素、Ｂ……密封体、ａ……弾性体、３……シール
リツプ、３ａ……ラジアルリツプ、４……環状
溝。
FIG. 1 is a sectional view of the sealing device assembly of the present invention. FIG. 2 is an enlarged sectional view showing another embodiment of the present invention. FIG. 3 is a sectional view showing a conventional sealed body. A... Sealing device assembly, A1, A2... Annular element, B... Sealing body, a... Elastic body, 3... Seal lip, 3a... Radial lip, 4... Annular groove.
Claims (1)
れ、該二部材１，２の内部と外部とを密封する
密封装置組立体Ａであつて；前記内輪１と外輪
２に固定される断面略Ｌ字形状と断面略逆Ｌ形
状の二つの環状要素Ａ１，Ａ２からなり、この
環状要素Ａ１，Ａ２の片方あるいは両方に互い
に摺接する弾性体ａで形成されたシールリツプ
３を設け、該シールリツプ３のラジアルリツプ
３ａが摺接する相手側の環状要素Ａ１（または
Ａ２）のシールリツプ接触部に環状溝４を形成
したことを特徴とする密封装置組立体。 ２ 前記ラジアルリツプ３ａが摺接する環状溝４
の接触線までその内方から弾性体ａを延設した
ことを特徴とする実用新案登録請求の範囲第１
項記載の密封装置組立体。[Claims for Utility Model Registration] 1. A sealing device assembly A installed between an inner ring 1 and an outer ring 2 that are movable relative to each other and sealing the inside and outside of the two members 1 and 2; A seal lip consisting of two annular elements A1 and A2 having a substantially L-shaped cross section and a substantially inverted L-shaped cross section fixed to the outer ring 2, and formed of an elastic body a that slides on one or both of the annular elements A1 and A2. 3, and an annular groove 4 is formed in the seal lip contact portion of the mating annular element A1 (or A2) with which the radial lip 3a of the seal lip 3 slides. 2. An annular groove 4 in which the radial lip 3a slides.
Utility model registration claim No. 1 characterized in that the elastic body a is extended from the inside to the contact line of the
Sealing assembly as described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988096597U JPH0547900Y2 (en) | 1988-07-20 | 1988-07-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988096597U JPH0547900Y2 (en) | 1988-07-20 | 1988-07-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0216864U JPH0216864U (en) | 1990-02-02 |
| JPH0547900Y2 true JPH0547900Y2 (en) | 1993-12-17 |
Family
ID=31321598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988096597U Expired - Lifetime JPH0547900Y2 (en) | 1988-07-20 | 1988-07-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0547900Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106461087A (en) * | 2014-08-26 | 2017-02-22 | 斯凯孚公司 | Dynamic radial seal |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4289804B2 (en) * | 2001-05-15 | 2009-07-01 | Ｎｔｎ株式会社 | Rotation transmission device |
| JP2006188175A (en) * | 2005-01-07 | 2006-07-20 | Honda Motor Co Ltd | Bearing device for driving wheel |
| WO2006073159A1 (en) * | 2005-01-07 | 2006-07-13 | Honda Motor Co., Ltd. | Bearing device for drive wheel |
-
1988
- 1988-07-20 JP JP1988096597U patent/JPH0547900Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106461087A (en) * | 2014-08-26 | 2017-02-22 | 斯凯孚公司 | Dynamic radial seal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0216864U (en) | 1990-02-02 |
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