JPS6318861Y2 - - Google Patents
Info
- Publication number
- JPS6318861Y2 JPS6318861Y2 JP1984045061U JP4506184U JPS6318861Y2 JP S6318861 Y2 JPS6318861 Y2 JP S6318861Y2 JP 1984045061 U JP1984045061 U JP 1984045061U JP 4506184 U JP4506184 U JP 4506184U JP S6318861 Y2 JPS6318861 Y2 JP S6318861Y2
- Authority
- JP
- Japan
- Prior art keywords
- seal ring
- outer cylinder
- seal
- rubber
- elastic material
- 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
- 239000013013 elastic material Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 description 6
- 230000002265 prevention Effects 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
Description
【考案の詳細な説明】
本考案はメカニカルシールの廻り止め機構に係
り、とくに自動車に使用されるウオーターポンプ
用メカニカルシール等において、シールリングに
よる外筒の破損を防止することを目的とするもの
である。[Detailed description of the invention] The present invention relates to a rotation prevention mechanism for mechanical seals, and its purpose is to prevent the outer cylinder from being damaged by the seal ring, especially in mechanical seals for water pumps used in automobiles. be.
従来から、この種用途に供されるメカニカルシ
ールの一種として、第１図に示すごとく、外筒ａ
の一側に内挿したパツキンｂを介してシールリン
グｃを担持するとともに、前記パツキンｂの周溝
にスプリング押えｄを介して弾挿したコイルスプ
リングｅによつて該シールリングｃをフローテイ
ングシートｆに押圧し、該シールリングｃとフロ
ーテイングシートｆとを密接摺動させるものが知
られており、かつこのメカニカルシールはシヤフ
トの回転に従動するフローテイングシートｆに対
して、シールリングｃが共廻りするのを阻止する
ため、外筒ａの凸状の廻り止め部a′とシールリン
グｃの凹状の廻り止め部c′とを直接に係合させる
廻り止め構造を有しているが、実際にこれを作動
させてみると、前記両廻り止め部a′，c′が周方向
に繰り返し衝接し、該部a′，c′に破損を生じると
いう欠点を有しており、とくに前記シールリング
ｃをシリコンカーバイドにより製し、外筒ａを金
属材により製した場合、摺動トルクが大きくなつ
て外筒ａの廻り止め部a′に摩滅を生じ易いという
欠点を有していた。 Conventionally, as a type of mechanical seal used for this type of application, an outer cylinder a is used as shown in Fig. 1.
A seal ring c is supported through a gasket b inserted on one side, and the seal ring c is held in a floating seat by a coil spring e elastically inserted into a circumferential groove of the gasket b via a spring retainer d. A mechanical seal is known in which the seal ring c and the floating seat f are slid closely together by pressing the seal ring c against the floating seat f, which is driven by the rotation of the shaft. In order to prevent them from rotating together, a rotation prevention structure is provided in which the convex rotation prevention part a' of the outer cylinder a and the concave rotation prevention part c' of the seal ring c are directly engaged. When this is actually operated, the detent parts a' and c' repeatedly collide in the circumferential direction, causing damage to the parts a' and c'. When the ring c is made of silicon carbide and the outer cylinder a is made of a metal material, there is a drawback that the sliding torque becomes large and the rotation stopper part a' of the outer cylinder a tends to wear out.
本考案は以上の点に鑑み、シールリングと外筒
の両廻り止め部の間にゴム様弾性材を挟み込んで
外筒がシールリング本体と直接に接触しないよう
に構成して、廻り止め部の破損をなくしたもので
ある。 In view of the above points, the present invention has been developed by sandwiching a rubber-like elastic material between the rotation stopper parts of the seal ring and the outer cylinder so that the outer cylinder does not come into direct contact with the seal ring body, and to prevent the rotation stopper from coming into direct contact with the seal ring body. This eliminates damage.
以下、本考案の一実施例を第２図および第３図
にしたがつて説明すると、１はシヤフト側に固定
されるシリコンカーバイド製のフローテイングシ
ートであり、該フローテイングシート１に対して
同材質のシールリング本体２が密接摺動するよう
になる。該シールリング本体２の後端面には断面
Ｌ字状の金属環３が配され、該シールリング本体
２と金属環３を包み込むように、その内外周部と
後端部にゴム様弾性材４が焼き付けられている。
また前記シールリング本体２、金属環３およびゴ
ム様弾性材４の３部材からなる当該リングの内周
面には、第３図に示すように、凹状の廻り止め部
５が形成され、該廻り止め部５に対して金属製の
外筒６の凸状の廻り止め部７（第２図）が符号す
るようになる。 Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 2 and 3. Reference numeral 1 denotes a floating sheet made of silicon carbide fixed to the shaft side. The seal ring main body 2 made of the same material will now slide closely together. A metal ring 3 having an L-shaped cross section is disposed on the rear end surface of the seal ring main body 2, and a rubber-like elastic material 4 is provided on the inner and outer circumferential parts and the rear end of the metal ring 3 so as to wrap around the seal ring main body 2 and the metal ring 3. is burned into it.
Further, as shown in FIG. 3, a concave anti-rotation portion 5 is formed on the inner peripheral surface of the ring, which is made up of three members: the seal ring main body 2, the metal ring 3, and the rubber-like elastic material 4. A convex rotation stopper 7 (FIG. 2) of the metal outer cylinder 6 corresponds to the stopper 5.
上記構成のメカニカルシールにおいては、フロ
ーテイングシート１とシールリング本体２の両部
材にシリコンカーバイドを使用しているために高
摺動トルクが生じるが、該トルクによるシールリ
ング２の外筒６の廻り止め部７への衝撃はシール
リング本体２に取着したゴム様弾性材４によつて
緩衝することができ、外筒６の廻り止め部７の摩
滅、破損を防止することができる。 In the mechanical seal having the above configuration, high sliding torque is generated because silicon carbide is used for both the floating sheet 1 and the seal ring main body 2. The impact on the stopper 7 can be buffered by the rubber-like elastic material 4 attached to the seal ring main body 2, thereby preventing the rotation stopper 7 of the outer cylinder 6 from being worn out or damaged.
以上述べたように本考案のメカニカルシール
は、シールリングと外筒との係合部分にゴム様弾
性材を挟み込むことにより、該係合部分がフロー
テイングシートとシールリングの摺動部に生じる
摺動トルクによつて摩滅するのを防止することが
できる等の特徴を有し、本考案の実用的効果はき
わめて大きい。 As described above, in the mechanical seal of the present invention, a rubber-like elastic material is sandwiched between the seal ring and the outer cylinder, so that the engagement part is free from the sliding force that occurs in the sliding part between the floating seat and the seal ring. This invention has features such as being able to prevent wear due to dynamic torque, and the practical effects of the present invention are extremely large.
第１図は従来のメカニカルシールの半裁正断面
図、第２図は本考案に係るメカニカルシールの要
部半裁断面図、第３図は第２図における−線
断面図である。
１……フローテイングシート、２……シールリ
ング、３……金属環、４……ゴム様弾性材、５，
７……廻り止め部、６……外筒。
FIG. 1 is a half-cut cross-sectional view of a conventional mechanical seal, FIG. 2 is a half-cut cross-sectional view of a main part of a mechanical seal according to the present invention, and FIG. 3 is a cross-sectional view taken along the line -- in FIG. 1...Floating sheet, 2...Seal ring, 3...Metal ring, 4...Rubber-like elastic material, 5,
7... Rotation stopper part, 6... Outer cylinder.
Claims (1)
に対して密接摺動するシールリングと該シールリ
ングの共廻りを防止するための外筒廻り止め部と
の係合部分に、ゴム様弾性材を挟み込んでなるこ
とを特徴とするメカニカルシール。 A rubber-like elastic material is sandwiched between the seal ring that slides closely against the floating sheet fixed to the shaft side and the outer cylinder rotation stopper that prevents the seal ring from rotating together. A mechanical seal characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4506184U JPS60158070U (en) | 1984-03-30 | 1984-03-30 | Mechanical seal rotation prevention mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4506184U JPS60158070U (en) | 1984-03-30 | 1984-03-30 | Mechanical seal rotation prevention mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60158070U JPS60158070U (en) | 1985-10-21 |
| JPS6318861Y2 true JPS6318861Y2 (en) | 1988-05-26 |
Family
ID=30558217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4506184U Granted JPS60158070U (en) | 1984-03-30 | 1984-03-30 | Mechanical seal rotation prevention mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60158070U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH073097Y2 (en) * | 1989-05-15 | 1995-01-30 | イーグル工業株式会社 | mechanical seal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4118406Y1 (en) * | 1964-03-06 | 1966-08-27 | ||
| JPS4118770Y1 (en) * | 1964-03-10 | 1966-09-01 |
-
1984
- 1984-03-30 JP JP4506184U patent/JPS60158070U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4118406Y1 (en) * | 1964-03-06 | 1966-08-27 | ||
| JPS4118770Y1 (en) * | 1964-03-10 | 1966-09-01 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60158070U (en) | 1985-10-21 |
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