JPH0448369Y2 - - Google Patents
Info
- Publication number
- JPH0448369Y2 JPH0448369Y2 JP1987141556U JP14155687U JPH0448369Y2 JP H0448369 Y2 JPH0448369 Y2 JP H0448369Y2 JP 1987141556 U JP1987141556 U JP 1987141556U JP 14155687 U JP14155687 U JP 14155687U JP H0448369 Y2 JPH0448369 Y2 JP H0448369Y2
- Authority
- JP
- Japan
- Prior art keywords
- metal ring
- seal
- seal lip
- outer periphery
- housings
- 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
Links
- 239000002184 metal Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 17
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案はリツプ型シールを用いた軸封装置に関
する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a shaft sealing device using a lip-type seal.
従来から、たとえばクーラーのコンプレツサの
軸封装置として第２図に示すようなものがある。
2. Description of the Related Art Conventionally, for example, there is a shaft sealing device for a compressor of a cooler, as shown in FIG.
この軸封装置は、ゴム材製Ｏリング１０２を介
して前記コンプレツサのハウジング１０５内周面
に嵌着される金属環１０１と、外周部が該金属環
１０１によつて保持され内周部がコンプレツサの
シヤフト１０６と摺接するフツ化エチレン重合体
製のシールリツプ１０３と、金属環１０１とシー
ルリツプ１０３の間をシールするゴム材製のガス
ケツト１０４とで構成されている。 This shaft sealing device includes a metal ring 101 that is fitted onto the inner circumferential surface of the compressor housing 105 via an O-ring 102 made of a rubber material, an outer circumferential portion of which is held by the metal ring 101, and an inner circumferential portion of which is attached to the compressor. The sealing lip 103 is made of a fluorinated ethylene polymer and is in sliding contact with the shaft 106 of the metal ring 101. The gasket 104 is made of a rubber material and seals between the metal ring 101 and the sealing lip 103.
ところで最近、クーラーに用いられる冷媒は、
従来のフレオンＲ−12からフレオンＲ−22への変
更が検討されており、シールリツプ１０３の材料
であるフツ化エチレン重合体はあらゆる薬品に対
して不活性で、前記フレオンＲ−22に対する耐性
も優れているが、Ｏリング１０２およびガスケツ
ト１０４のゴム材としては、クロロプレンゴムだ
けがフレオンＲ−22用シール材としての使用が可
能である。 By the way, recently, the refrigerants used in coolers are
Changing from the conventional Freon R-12 to Freon R-22 is being considered, and the fluorinated ethylene polymer that is the material of the seal lip 103 is inert to all chemicals and has excellent resistance to Freon R-22. However, as the rubber material for the O-ring 102 and gasket 104, only chloroprene rubber can be used as a sealing material for Freon R-22.
しかし、クロロプレンゴムの使用可能な温度範
囲は−50℃〜＋120℃であつて耐熱性に乏しく、
コンプレツサで圧縮されるフレオンＲ−22の気相
から液相への相変化に伴なう潜熱放出による高温
雰囲気（150℃以上）では使用不可能になるとい
つた問題がある。
However, the usable temperature range of chloroprene rubber is -50℃ to +120℃, and it has poor heat resistance.
There is a problem in that Freon R-22 compressed by a compressor becomes unusable in a high temperature atmosphere (150° C. or higher) due to the release of latent heat accompanying the phase change from the gas phase to the liquid phase.
そこで本考案は耐薬品性および耐熱性に優れた
軸封装置を提供せんとするものである。 Therefore, the present invention aims to provide a shaft sealing device with excellent chemical resistance and heat resistance.
軸封装置は、フツ化エチレン重合体からなる複
数のシールリツプのうち、高圧空間側のシールリ
ツプの外周部は金属環の内周部に焼き付けられ、
他のシールリツプの外周部は、前記高圧空間側の
シールリツプと、外周鍔部が前記金属環の外周鍔
部に一体にカシメられた他の金属環との間に挟持
され、前記両金属環の互いにカシメられた外周鍔
部が、軸方向に対向する一対のハウジングの接合
面間に挟圧密着されてなる構成とした。
In the shaft seal device, among a plurality of seal lips made of fluorinated ethylene polymer, the outer periphery of the seal lip on the high pressure space side is baked onto the inner periphery of a metal ring.
The outer periphery of the other seal lip is sandwiched between the seal lip on the high pressure space side and another metal ring whose outer periphery flange is integrally caulked to the outer periphery flange of the metal ring, and the two metal rings are mutually connected to each other. The caulked outer peripheral flange is tightly pressed between the joint surfaces of a pair of housings facing each other in the axial direction.
すなわち、この軸封装置は、カシメられて軸方
向に互いに重合した両金属環の外周鍔部が、軸方
向に対向する一対のハウジングの合接部に挟圧さ
れて、そのカシメ部分の弾性によつて前記合接部
に密着しており、ハウジングとの間のシール手段
と固定手段とを兼ねるため、ハウジングと金属環
の間へのゴム材製Ｏリング等の介装を不要とし、
また、内周の摺動シール部はフツ化エチレン重合
体からなるシールリツプのみによつて構成され、
しかもこのうち高圧空間側のシールリツプを前記
金属環と一体的に接着したことによつて、金属環
とシールリツプの間へのゴム材製ガスケツト等の
シール材の介装を不要としたものである。
That is, in this shaft sealing device, the outer peripheral flanges of both metal rings which are caulked and overlapped with each other in the axial direction are compressed by the joint portion of the pair of housings facing each other in the axial direction, and the elasticity of the caulked portion is applied. Therefore, since it is in close contact with the joint portion and serves as both a sealing means and a fixing means between the housing and the metal ring, there is no need to insert a rubber O-ring or the like between the housing and the metal ring.
In addition, the sliding seal part on the inner periphery is composed only of a seal lip made of fluorinated ethylene polymer,
Furthermore, since the seal lip on the high pressure space side is integrally bonded to the metal ring, there is no need to interpose a sealing material such as a rubber gasket between the metal ring and the seal lip.
以下、本考案の軸封装置の一実施例を第１図に
したがつて説明すると、符号２はコンプレツサ内
の高圧となる空間HP側のシールリツプ、３は前
記空間HPよりも相対的に低圧となる空間LP側の
シールリツプで、ともにフツ化エチレン重合体か
らなり、両シールリツプ２，３によつて摺動シー
ル部１をなす。４は金属環で、その内周部４ａに
は高圧側のシールリツプ２の外周部２ａが焼き付
けによつて一体的に接着されており、５は外周鍔
部５ｂが前記金属環４の外周鍔部４ｂにカシメ６
によつて一体化されているいまひとつの金属環
で、低圧側のシールリツプ３の外周部３ａはこの
金属環５とシールリツプ２の外周部２ａの間に挾
着されている。金属環５の内周部５ａは高圧空間
HP側へ適宜屈曲し、シールリツプ３および２を
バツクアツプしている。
Hereinafter, one embodiment of the shaft sealing device of the present invention will be described with reference to FIG. 1. Reference numeral 2 denotes a seal lip on the side of the space HP where the pressure is high in the compressor, and 3 denotes a seal lip on the side of the space HP where the pressure is relatively low than that in the space HP. Both seal lips 2 and 3 are made of fluorinated ethylene polymer and form a sliding seal part 1 on the side of the space LP. Reference numeral 4 denotes a metal ring, to the inner circumference 4a of which the outer circumference 2a of the seal lip 2 on the high pressure side is integrally bonded by baking, and to the inner circumference 4a of the metal ring 4, an outer circumference flange 5b is attached. Caulk 6 on 4b
The outer periphery 3a of the seal lip 3 on the low pressure side is clamped between this metal ring 5 and the outer periphery 2a of the seal lip 2. The inner peripheral part 5a of the metal ring 5 is a high pressure space
It bends appropriately toward the HP side and backs up the seal lips 3 and 2.
この軸封装置は、金属環４，５の外周鍔部４
ｂ，５ｂのカシメ６部分を、ハウジング７，８の
合接部内周に設けた環状溝９内に両ハウジング
７，８からの適当な締め付け力によつて気密的に
挾着固定してシールリツプ２，３の内周部２ｂ，
３ｂを図示しないシヤフトと摺接させるもので、
ゴム材からなるシール材は一切使用していない。 This shaft sealing device includes an outer peripheral flange 4 of metal rings 4 and 5.
The caulking 6 portions of b and 5b are airtightly clamped and fixed in an annular groove 9 provided on the inner periphery of the joint portion of the housings 7 and 8 by appropriate tightening force from both the housings 7 and 8 to form the seal lip 2. , 3 inner peripheral portion 2b,
3b is brought into sliding contact with a shaft (not shown),
No sealing material made of rubber is used.
以上説明したように、本考案に係る軸封装置
は、金属環を、フツ化エチレン重合体からなるシ
ールリツプを一体的に接着した構造を有し、しか
も金属環のカシメ屈曲された外周鍔部が、軸方向
に対向する一対のハウジングの合接面間に挟圧密
着し、該ハウジングとの間のシール手段と固定手
段とを兼ねるものであるため、軸方向に対して強
固に位置決め固定されるとともに、シール手段と
してのゴム部品が不要となつて耐薬品性および耐
熱性に優れたシール構造となり、殊にフレオンＲ
−22を冷媒として用いたクーラー用コンプレツサ
の軸封装置としてきわめて有用である。
As explained above, the shaft sealing device according to the present invention has a structure in which a metal ring is integrally bonded to a seal lip made of a fluorinated ethylene polymer, and the outer peripheral flange portion of the metal ring is bent. , is tightly pressed between the joining surfaces of a pair of housings facing each other in the axial direction, and serves as a sealing means and a fixing means between the housings, so that it is firmly positioned and fixed in the axial direction. At the same time, there is no need for rubber parts as a sealing means, resulting in a seal structure with excellent chemical resistance and heat resistance.
It is extremely useful as a shaft sealing device for a compressor for a cooler that uses -22 as a refrigerant.
第１図は本考案軸封装置の一実施例を示す要部
断面図、第２図は従来の軸封装置の一例を示す装
着状態の半裁断面図である。
１……摺動シール部、２，３……シールリツ
プ、４，５……金属環、７，８……ハウジング。
FIG. 1 is a sectional view of a main part of an embodiment of the shaft sealing device of the present invention, and FIG. 2 is a half-cut sectional view of an example of a conventional shaft sealing device in an installed state. 1... Sliding seal portion, 2, 3... Seal lip, 4, 5... Metal ring, 7, 8... Housing.
Claims (1)
ツプのうち、高圧空間側のシールリツプの外周部
は金属環の内周部に焼き付けられ、他のシールリ
ツプの外周部は、前記高圧空間側のシールリツプ
と、外周鍔部が前記金属環の外周鍔部に一体にカ
シメられた他の金属環との間に挟持され、前記両
金属環の互いにカシメられた外周鍔部が、軸方向
に対向する一対のハウジングの接合面間に挟圧密
着されてなることを特徴とする軸封装置。 Among a plurality of seal lips made of fluorinated ethylene polymer, the outer periphery of the seal lip on the high pressure space side is baked onto the inner periphery of the metal ring, and the outer periphery of the other seal lips is bonded to the seal lip on the high pressure space side and the outer periphery. a pair of housings that are sandwiched between a metal ring and another metal ring that is integrally caulked to the outer circumferential collar of the metal ring, and the mutually caulked outer circumferential flanges of both metal rings join a pair of housings that face each other in the axial direction. A shaft sealing device characterized by being tightly pressed between surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987141556U JPH0448369Y2 (en) | 1987-09-18 | 1987-09-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987141556U JPH0448369Y2 (en) | 1987-09-18 | 1987-09-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6446578U JPS6446578U (en) | 1989-03-22 |
| JPH0448369Y2 true JPH0448369Y2 (en) | 1992-11-13 |
Family
ID=31406723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987141556U Expired JPH0448369Y2 (en) | 1987-09-18 | 1987-09-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0448369Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006300186A (en) * | 2005-04-19 | 2006-11-02 | Eagle Ind Co Ltd | Shaft sealing device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60155058A (en) * | 1984-01-21 | 1985-08-14 | カール・フロイデンベルク | Radial type shaft packing ring and manufacture thereof |
-
1987
- 1987-09-18 JP JP1987141556U patent/JPH0448369Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60155058A (en) * | 1984-01-21 | 1985-08-14 | カール・フロイデンベルク | Radial type shaft packing ring and manufacture thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6446578U (en) | 1989-03-22 |
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