JPS6354945B2 - - Google Patents
Info
- Publication number
- JPS6354945B2 JPS6354945B2 JP9371983A JP9371983A JPS6354945B2 JP S6354945 B2 JPS6354945 B2 JP S6354945B2 JP 9371983 A JP9371983 A JP 9371983A JP 9371983 A JP9371983 A JP 9371983A JP S6354945 B2 JPS6354945 B2 JP S6354945B2
- Authority
- JP
- Japan
- Prior art keywords
- sealing ring
- sealing
- ring
- end surface
- 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 40
- 239000000463 material Substances 0.000 claims description 15
- 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
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002787 reinforcement Effects 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
-
- 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
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
- F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
- F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities
- F16J15/3416—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities with at least one continuous groove
Description
【発明の詳細な説明】
本発明は、密封端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
硬質材料製たとえばステンレス鋼製とし、この硬
質材料製密封環が密封端面に接する部分及びこの
部に連なる部分は薄肉の円筒にすることにより、
上記密封端面の半径方向の幅を著しくせまくする
と共に、硬質材料製密封環が可撓性材料製密封環
に食い込む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、運転動力が小さく、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 sealed end face 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. For example, it is made of stainless steel, and the part where this hard material sealing ring touches the sealing end face and the part that continues to this part are made into thin cylinders,
This relates to a mechanical seal characterized in that the radial width of the sealing end face is significantly narrowed and the sealing ring made of a hard material bites into the sealing ring made of a flexible material, and its purpose is to: To obtain a mechanical seal with high sealing performance, low operating power, and low calorific value.
本発明メカニカルシールを例示図面により説明
する。 The mechanical seal of the present invention will be explained with reference to illustrative drawings.
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６
を介して、ローター４の内周にはめる。密封環５
は筒部７及び側壁８から成る。筒部の側部には面
９を設ける。この面９はシヤフト３の軸線に対し
てほぼ垂直なものとする。筒部７の半径方向の内
厚は著しく薄いものとする。従つて、面９の半径
方向の幅も著しくせまい。たとえば、シヤフトの
直径が５mmないし20mm程度の場合、面９の半径方
向の幅はほぼ0.5mmないし１mm前後で、シヤフト
の径が大きい場合にはこれよりも大きくしてもよ
い。 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 6
It is fitted onto the inner periphery of the rotor 4 via. Sealing ring 5
consists of a cylindrical portion 7 and a side wall 8. A surface 9 is provided on the side of the cylinder. This surface 9 is substantially perpendicular to the axis of the shaft 3. The inner thickness of the cylindrical portion 7 in the radial direction is extremely thin. Therefore, the width of the surface 9 in the radial direction is also extremely narrow. For example, when the diameter of the shaft is approximately 5 mm to 20 mm, the radial width of the surface 9 is approximately 0.5 mm to 1 mm, and may be larger if the shaft diameter is large.
止環２は外筒１０、側壁１１及び内筒１２から
成る。パツキン１３は内筒１２の外周にはめる。
パツキン１３の一端には補強環１４を介して密封
環１５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 10, a side wall 11, and an inner cylinder 12. The packing 13 is fitted onto the outer periphery of the inner cylinder 12.
A sealing ring 15 is fixed to one end of the packing 13 via a reinforcing ring 14. This fixation is achieved, for example, by adhesion.
この密封環１５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。密封環１５の側部には面１６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。 The sealing ring 15 is made of a flexible material, such as tetrafluoroethylene resin filled with a suitable filler. A surface 16 is provided on the side of the sealing ring 15 . This plane is substantially perpendicular to the axis of the shaft 3.
面１６は面９に接触させて密封端面Ｓを構成さ
せる。スプリング１７はその弾発力によつてパツ
キン１３、補強環１４を介して密封環１５を密封
環５に押圧し、密封端面Ｓの密接圧力の強さを強
める。 Surface 16 contacts surface 9 to define a sealed end surface S. The spring 17 presses the sealing ring 15 against the sealing ring 5 through the packing 13 and the reinforcing ring 14 by its elastic force, thereby increasing the strength of the close contact pressure of the sealing end 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１５は回転しないで、
密封端面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 structure, when the shaft 3 is rotated, the sealing ring 5 rotates, but the sealing ring 15 does not rotate.
The sealed end surface S serves as a meeting surface for relatively rotating surfaces and limits the flow of fluid even while the shaft 3 is rotating.
本発明のメカニカルシールにおいては、密封環
１５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の筒部７の半径方向の幅はせ
まいので、密封環５は最初から密封環１５にわず
か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。次に、密封端面Ｓが摩耗すると、
密封環７は密封環１５の中に入り込んでゆき、密
封端面Ｓの外側及び内側にせばまり通路を形成
し、高い密封性を発揮する。しかして、このよう
に密封環５が密封環１５に入り込んでも、密封環
１５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。 In the mechanical seal of the present invention, the sealing ring 15 is made of a flexible material, and the sealing ring 5 is made of a hard material.Since the radial width of the cylindrical portion 7 of this sealing ring 5 is narrow, the sealing ring 5 is made of a flexible material. Since it is in a state where it slightly bites into the sealing ring 15 from the beginning, the initial sealing performance is also extremely high. Next, when the sealed end surface S wears out,
The sealing ring 7 penetrates into the sealing ring 15 and forms narrow passages on the outside and inside of the sealing end surface S, thereby exhibiting high sealing performance. Even if the sealing ring 5 gets into the sealing ring 15 in this way, since the sealing ring 15 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.
また、密封端面Ｓの半径方向の幅がせまいので
密封端面Ｓの面積は著しく小さい。従つて、スプ
リング１７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。 Furthermore, since the width of the sealed end surface S in the radial direction is narrow, the area of the sealed end surface S is extremely small. Therefore, the pushing force of the spring 17 may be small. Therefore, the starting torque and operating power can be extremely small, and the amount of heat generated can be reduced.
図面は本発明メカニカルシールの実施例を示す
半部縦断側面図である。
１……ケーシング。２……止環。３……シヤフ
ト。４……ローター。５……密封環。６……パツ
キン。７……筒部。８……側壁。９……面。１０
……外筒。１１……側壁。１２……内筒。１３…
…パツキン。１４……補強環。１５……密封環。
１６……面。１７……スプリング。Ｓ……密封端
面。
The drawing is a half longitudinal sectional side view showing an embodiment of the mechanical seal of the present invention. 1...Casing. 2... Ring stopper. 3...Shaft. 4...Rotor. 5...Sealed ring. 6...Patsukin. 7...Cylinder part. 8...Side wall. 9... side. 10
...outer cylinder. 11...Side wall. 12... Inner cylinder. 13...
...Patsukin. 14...Reinforcement ring. 15...Sealed ring.
16... side. 17...Spring. S... Sealed end surface.
Claims (1)
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
製たとえばステンレス鋼製とし、この硬質材料製
密封環が密封端面に接する部分及びこの部に連な
る部分は薄肉の円筒にすることにより、上記密封
端面の半径方向の幅を著しくせまくすると共に、
密封端面の摩耗に伴つて、硬質材料製密封環が可
撓性材料製密封環に食い込む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 sealed end face 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, such as stainless steel, and the hard material By making the portion of the sealing ring in contact with the sealing end surface and the portion continuous to this portion a thin cylinder, the width of the sealing end surface in the radial direction is significantly narrowed, and
A mechanical seal characterized in that a sealing ring made of a hard material bites into a sealing ring made of a flexible material as the sealing end face wears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9371983A JPS59219577A (en) | 1983-05-27 | 1983-05-27 | Mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9371983A JPS59219577A (en) | 1983-05-27 | 1983-05-27 | Mechanical seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59219577A JPS59219577A (en) | 1984-12-10 |
| JPS6354945B2 true JPS6354945B2 (en) | 1988-10-31 |
Family
ID=14090218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9371983A Granted JPS59219577A (en) | 1983-05-27 | 1983-05-27 | Mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59219577A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE470167B (en) * | 1992-10-01 | 1993-11-22 | Atlas Copco Tools Ab | Oil seal for a fast rotating shaft |
-
1983
- 1983-05-27 JP JP9371983A patent/JPS59219577A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59219577A (en) | 1984-12-10 |
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