JPS6354946B2 - - Google Patents
Info
- Publication number
- JPS6354946B2 JPS6354946B2 JP9372083A JP9372083A JPS6354946B2 JP S6354946 B2 JPS6354946 B2 JP S6354946B2 JP 9372083 A JP9372083 A JP 9372083A JP 9372083 A JP9372083 A JP 9372083A JP S6354946 B2 JPS6354946 B2 JP S6354946B2
- Authority
- JP
- Japan
- Prior art keywords
- sealing ring
- ring
- sealing
- corner
- hard 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
- 238000007789 sealing Methods 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 17
- 239000000945 filler Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel 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
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3496—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member use of special materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Description
【発明の詳細な説明】
本発明は、密封面を構成するところの一方の密
封環を可撓性材料製たとえば適宜の充填剤入りの
四ふつ化エチレン樹脂製とし、他方の密封環を硬
質材料製とし、この硬質材料製密封環に角部を設
け、この角部を上記可撓性材料製密封環に食い込
ませるようにしたことを特徴とするメカニカルシ
ールに関するもので、その目的とするところは、
密封性が高く、夏転動力が小さく、かつ、発熱量
の少ないメカニカルシールを得るにある。DETAILED DESCRIPTION OF THE INVENTION In the present invention, one of the sealing rings constituting the sealing surface is made of a flexible material, for example, tetrafluoroethylene resin containing an appropriate filler, and the other sealing ring is made of a hard material. This invention relates to a mechanical seal characterized in that the sealing ring made of a hard material is provided with a corner, and the corner is cut into the sealing ring made of a flexible material, and its purpose is to ,
To obtain a mechanical seal having high sealing performance, low summer rolling force, and low heat generation.
本発明メカニカルシールを例示図面中第１図に
つき説明する。 The mechanical seal of the present invention will be explained with reference to FIG. 1, which is an illustrative drawing.
一部を図示したケーシング１の内周部には止環
２をはめる。シヤフト３はこれらのケーシング及
び止環を貫通する。一部を図示したローター４は
シヤフト３に固くはめる。密封環５はパツキンＰ
を介してローター４にはめる。密封環５は硬質材
料製たとえばセラミツク製あるいはステンレス鋼
製とする。第１図のものは、セラミツク製であ
る。この密封環の側部には半径方向の幅の著しく
せまい角部６を設ける。 A retaining ring 2 is fitted to the inner circumferential portion of the casing 1, a portion of which is shown. The shaft 3 passes through these casings and the stop ring. A rotor 4, a portion of which is shown, is firmly fitted onto the shaft 3. Sealing ring 5 is packing P
Fit it into the rotor 4 through. The sealing ring 5 is made of a hard material, for example ceramic or stainless steel. The one in Figure 1 is made of ceramic. The sides of this sealing ring are provided with corners 6 which are significantly narrower in radial width.
止環２は外筒７、側壁８及び内筒９から成る。
パツキン１０は内筒９の外周にはめる。パツキン
１０の一端には補強環１１を介して密封環１２を
固定してある。この固定はたとえば接着による。 The stop ring 2 consists of an outer cylinder 7, a side wall 8 and an inner cylinder 9.
The gasket 10 is fitted onto the outer periphery of the inner cylinder 9. A sealing ring 12 is fixed to one end of the packing 10 via a reinforcing ring 11. This fixation is achieved, for example, by adhesion.
この密封環１２は可撓性材料製たとえば適宜の
充填剤を充填した四ふつ化エチレン樹脂製とす
る。 The sealing ring 12 is made of a flexible material, such as tetrafluoroethylene resin filled with a suitable filler.
密封環１２の側部には面１３を設ける。この面
はシヤフト３の軸線に対してほぼ垂直なものとす
る。面１３は角部６に接触させて密封面Ｓを構成
させる。スプリング１４はその弾発力によつてバ
ツキン１０、補強環１１を介して密封環１２を密
封環５に押圧し、密封面Ｓの溶接圧力の強さを強
める。 A surface 13 is provided on the side of the sealing ring 12 . This plane is substantially perpendicular to the axis of the shaft 3. The surface 13 is brought into contact with the corner 6 and forms a sealing surface S. The spring 14 presses the sealing ring 12 against the sealing ring 5 through the buckle 10 and the reinforcing ring 11 by its elastic force, thereby increasing the strength of the welding pressure on the sealing surface S.
このように構成し、シヤフト３を回転させると
密封環５は回転し、密封環１２は回転しないで、
密封面Ｓは相対的に回転する面の会合面となつ
て、シヤフト３の回転中も流体の流通量を制限す
る。 With this configuration, when the shaft 3 is rotated, the seal ring 5 rotates, but the seal ring 12 does not rotate.
The sealing surface S serves as a meeting surface for relatively rotating surfaces and limits the flow of fluid even during rotation of the shaft 3.
本発明のメカニカルシールにおいては、密封環
１２は可撓性材料製で、密封環５は硬質材料製で
あり、この密封環５の角部６が面１３に圧接す
る。そこで、角部６は最初から密封環１２に食い
込む状態になつているから、初期密封性も著しく
高い。 In the mechanical seal of the present invention, the sealing ring 12 is made of a flexible material, the sealing ring 5 is made of a hard material, and the corners 6 of the sealing ring 5 are in pressure contact with the surface 13. Therefore, since the corner portion 6 is in a state of biting into the sealing ring 12 from the beginning, the initial sealing performance is also extremely high.
次に密封面Ｓが摩耗すると、角部６は密封環１
２の中へ入り込んでゆき、屈曲した接面を構成す
るので高い密封性を発揮する。しかして、このよ
うに密封環５の角部６が密封環１２に入り込んで
も、密封環１２は可撓性材料製であるから、この
密封環にクラツクが入つたり、これが割れたりす
るようなことがなく、耐振性もよく、安全に軸封
を続行する。また、密封面Ｓの接触面積はせまい
ので、スプリング１４の押力は小さくて良い。そ
こで、起動トルクや運転動力は著しく小さく、発
熱量の少ないものとすることができるのである。 Next, when the sealing surface S wears out, the corner 6 becomes the sealing ring 1.
2 and forms a curved contact surface, demonstrating high sealing performance. Even if the corner 6 of the sealing ring 5 enters the sealing ring 12 in this way, since the sealing ring 12 is made of a flexible material, there is no possibility that the sealing ring will crack or break. It has good vibration resistance and continues to safely seal the shaft. Further, since the contact area of the sealing surface S is small, the pressing force of the spring 14 may be small. Therefore, the starting torque and operating power can be extremely small, and the amount of heat generated can be reduced.
本発明のメカニカルシールはその実施に当り、
大量生産品では、第２図の実施例に示すように、
硬質材料製密封環５を金属製とし、板材を例示の
如くプレス成型して角部６を造成するようにして
構成することもできる。 In implementing the mechanical seal of the present invention,
For mass-produced products, as shown in the example in Figure 2,
Alternatively, the hard material sealing ring 5 may be made of metal, and the corners 6 may be formed by press-molding a plate material as illustrated.
図面は本発明メカニカルシールの実施例を示し
第１図は半部縦断側面図で硬質材料製密封環をセ
ラミツク製にした具体例を示し、第２図も半部縦
断側面図で硬質材料製密封環を金属製にした具体
例を示す。
１……ケーシング。２……止環。３……シヤフ
ト。４……ローター。５……密封環。６……角
部。７……外筒。８……側壁。９……内筒。１０
……パツキン。１１……補強環。１２……密封
環。１３……面。１４……スプリング。Ｐ……パ
ツキン。Ｓ……密封面。
The drawings show an embodiment of the mechanical seal of the present invention, and FIG. 1 is a half vertical side view showing a specific example in which the hard material sealing ring is made of ceramic, and FIG. 2 is a half vertical side view showing a specific example in which the hard material sealing ring is made of ceramic. A specific example in which the ring is made of metal will be shown. 1...Casing. 2... Ring stopper. 3...Shaft. 4...Rotor. 5...Sealed ring. 6... Corner. 7... Outer cylinder. 8...Side wall. 9...Inner cylinder. 10
...Patsukin. 11...Reinforcement ring. 12...Sealed ring. 13... side. 14...Spring. P... Patsukin. S...Sealing surface.
Claims (1)
撓性材料製たとえば適宜の充填剤入りの四ふつ化
エチレン樹脂製とし、他方の密封環を硬質材料製
とし、この硬質材料製密封環に角部を設け、この
角部を上記可撓性材料製密封環に食い込ませるよ
うにしたことを特徴とするメカニカルシール。1 One of the sealing rings constituting the sealing surface is made of a flexible material, such as tetrafluoroethylene resin containing an appropriate filler, and the other sealing ring is made of a hard material, and this hard material sealing ring is A mechanical seal characterized in that a corner is provided and the corner is cut into the sealing ring made of a flexible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9372083A JPS59219578A (en) | 1983-05-27 | 1983-05-27 | Mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9372083A JPS59219578A (en) | 1983-05-27 | 1983-05-27 | Mechanical seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59219578A JPS59219578A (en) | 1984-12-10 |
| JPS6354946B2 true JPS6354946B2 (en) | 1988-10-31 |
Family
ID=14090245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9372083A Granted JPS59219578A (en) | 1983-05-27 | 1983-05-27 | Mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59219578A (en) |
-
1983
- 1983-05-27 JP JP9372083A patent/JPS59219578A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59219578A (en) | 1984-12-10 |
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