JPS59110959A - Mechanical seal - Google Patents

Mechanical seal

Info

Publication number
JPS59110959A
JPS59110959A JP21970882A JP21970882A JPS59110959A JP S59110959 A JPS59110959 A JP S59110959A JP 21970882 A JP21970882 A JP 21970882A JP 21970882 A JP21970882 A JP 21970882A JP S59110959 A JPS59110959 A JP S59110959A
Authority
JP
Japan
Prior art keywords
end surface
grooves
fluid
sealing ring
arrow
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.)
Pending
Application number
JP21970882A
Other languages
Japanese (ja)
Inventor
Akira Washida
鷲田 彰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arai Seisakusho Co Ltd
Original Assignee
Arai Seisakusho Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Arai Seisakusho Co Ltd filed Critical Arai Seisakusho Co Ltd
Priority to JP21970882A priority Critical patent/JPS59110959A/en
Publication of JPS59110959A publication Critical patent/JPS59110959A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/34Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3404Sealings 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
    • F16J15/3408Sealings 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
    • F16J15/3412Sealings 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Sealing (AREA)

Abstract

PURPOSE:To increase PV value by providing a seal end surface with an arbitrary number of substantially straight grooves orthogonal to the radial direction of the end surface. CONSTITUTION:The seal end surface S is provided with an arbitrary number of substantially straight grooves M orthogonal to the radial direction of the end surface. When a seal ring 7 is rotated in direction of an arrow A, a sealed-in fluid X is forced to flow into the grooves M from the direction of an arrow B and flow out in direction of an arrow C by derivation based upon the viscosity of the sealed-in fluid X. The sealed-in fluid in the grooves M is conducted into the seal end surface S by the viscosity derivation caused by rotation of a face 8. Accordingly, the thickness of fluid film in the seal end surface S is increased and its pressure is increased to raise load capacity and increase PV value.

Description

【発明の詳細な説明】 本発明は、密封端面に、半径方向に対して直角方向にほ
ぼ直線をなす溝を任意数設け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、
pv値が高く、摩耗が少なく、シかも製造の容易なメカ
ニカルシールを得るにある。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mechanical seal characterized in that an arbitrary number of substantially straight grooves are provided in a sealing end face in a direction perpendicular to the radial direction. ,
The object of the present invention is to obtain a mechanical seal that has a high pv value, has little wear, and is easy to manufacture.

本発明メカニカルシールを例示図面により説明する。ケ
ー/ング(11の端部にはカバ(2)を固定する。
The mechanical seal of the present invention will be explained with reference to illustrative drawings. A cover (2) is fixed to the end of the case (11).

ノヤフl−+31はこれらのケーンング及びカバを貫通
する。/ヤフト(3)の外周にはパツキン(4)を介し
てストッパー(5)をはめこのシャフトに固定する。こ
のストッパの内周にはパツキン(6)を介して密封環(
7)をはめる。この密封環とストッパとは相対回転を防
止しである。密封環(7)の側部には面(8)を設ける
Noyaf l-+31 penetrates these canings and covers. /A stopper (5) is fitted on the outer periphery of the shaft (3) via a packing (4) and fixed to the shaft. A sealing ring (
7) Fit. The sealing ring and the stopper prevent relative rotation. The sides of the sealing ring (7) are provided with surfaces (8).

カバ(2)の内周は軸方向へ延長してこれを内筒(9)
とする。密封環tIO1はパツキン(11)を介して内
筒(9)の外周に軸方向へ動くことができるようにはめ
る。
The inner periphery of the cover (2) extends in the axial direction and forms the inner cylinder (9).
shall be. The sealing ring tIO1 is fitted onto the outer periphery of the inner cylinder (9) via a packing (11) so as to be movable in the axial direction.

密封環aQに一端を埋設したノック(12)の他端は、
カバ(2)に設けた穴(13)内にゆるくはめる。これ
で、密封環tonとカバ(2)とは相対回転は不能で、
軸方向の相対運動は可能となる。密封環QOIの側部に
は面+141を設ける。面(141は面(8)に密接さ
せて?l端面(81を構成させる。密封環Qαとカバ(
2)との間にはスプリング(15)を介在させる。この
スプリングは密封環notを密封環(7)に押しつけて
密封端面(S)の密接圧力の強さを強める。この密封端
面の外周には1E封流体(X)が接している。
The other end of the knock (12), one end of which is buried in the sealing ring aQ, is
Loosely fit it into the hole (13) made in the cover (2). Now, the sealing ring ton and cover (2) cannot rotate relative to each other.
Relative movement in the axial direction is possible. A surface +141 is provided on the side of the sealing ring QOI. The surface (141) is brought into close contact with the surface (8) to form the end surface (81).The sealing ring Qα and the cover (
2), a spring (15) is interposed between the two. This spring presses the sealing ring not against the sealing ring (7) and increases the strength of the close pressure of the sealing end surface (S). The 1E sealing fluid (X) is in contact with the outer periphery of this sealed end surface.

密封端面(S1内には、半径方向に対して直角方向のほ
ぼ直線をなす溝間を任意数設ける。例えば、密封環aω
の面(14Iには第2図に示すような溝間を没ける。こ
の溝の深さや形状及び数は任意であるが。
In the sealed end surface (S1, an arbitrary number of grooves that are substantially straight in a direction perpendicular to the radial direction are provided. For example, a sealed ring aω
In the surface (14I), grooves as shown in FIG. 2 are sunk. The depth, shape, and number of these grooves are arbitrary.

第2図に例示したものでは、溝の深さはQ、 5 mm
、形状は三角状、数は3部分に計3本設けである。
In the example shown in Figure 2, the depth of the groove is Q, 5 mm.
The shape is triangular, and the number is 3 in total in 3 parts.

第3図に示す具体例では溝(ロ)の深さが5pm、形状
は三角状、数は3部分に計6本設けである。
In the specific example shown in FIG. 3, the grooves (b) have a depth of 5 pm, a triangular shape, and a total of six grooves in three sections.

このように構成し、ンヤフト(3)を回転させると密封
環(7)は回転し、密封環Qlは回転しないので密封端
面(S)は相対的に回転する面の会合面となってノヤフ
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 (7) rotates, but the sealing ring Ql does not rotate, so the sealing end surface (S) becomes a meeting surface of the relatively rotating surfaces, and the shaft (3) rotates. 3) Also during rotation, the flow rate of fluid is restricted.

しかして、第2図および第3図において、密封環(7)
が矢印入方向へ回転すると、溝(周内には密封流体(X
lの粘性にもとすく誘導作用により、矢印B方向から密
封流体(Xiが入り、矢印C方向へ流出する。しかも、
この溝間内における密封流体は、やはり面、(8)の回
転による粘性誘導作用により、密封端面(8+内に導入
され、この密封端面fs)内の流体膜厚を厚くし、しか
もその圧力を上昇させて負荷能力を高め、Pv値の高い
ものとすることができるのである。また、溝間内への流
体の導入とこの溝からの導出が連続的に行なわれるので
、密封環の冷却が十分になる。
Therefore, in FIGS. 2 and 3, the sealing ring (7)
When rotates in the direction of the arrow, the groove (inside the sealing fluid (X
Due to the viscosity of l, the sealing fluid (Xi) enters from the direction of arrow B and flows out in the direction of arrow C.Moreover,
The sealing fluid within this groove is also introduced into the sealing end surface (8+) due to the viscosity induction effect caused by the rotation of the surface (8), increasing the fluid film thickness within the sealing end surface fs, and increasing the pressure. By increasing the load capacity, it is possible to increase the Pv value. Further, since the fluid is continuously introduced into the grooves and taken out from the grooves, the sealing ring is sufficiently cooled.

本発明のメカニカルンールにおける溝間はほぼ直線的に
造成するので、製造が甚だ容易で生産性のよいものとす
ることができる。
Since the grooves in the mechanical run of the present invention are formed almost linearly, manufacturing is extremely easy and productivity can be improved.

なお、溝(ロ)の深さや幅は5μm程度から作用効果が
顕著であり、05〜1 mmあるいはそれ以上でも有効
である。まだ、数は任意であり、溝間が互いに交差する
如く設けてもよい。
Note that the effect is significant when the depth and width of the groove (b) is about 5 μm, and it is also effective even when the depth and width are 0.5 to 1 mm or more. However, the number of grooves is arbitrary, and the grooves may be provided so as to intersect with each other.

本発明のメカニカルノールは正逆いずれの方向へ回転さ
せても有効でちり、また、溝間を回転する面(8)のみ
に設けた場合には、上述の作用の上に溝(ロ)内の流体
に遠心力が働くが、有効な作用はなお持続する。また、
溝間は面圓と(8)の双方に設けても有効である。
The mechanical knob of the present invention is effective even when rotated in either the forward or reverse direction, and when provided only on the surface (8) that rotates between the grooves, it has the effect described above, and centrifugal force acts on the fluid, but the effective action still continues. Also,
It is also effective to provide grooves on both the surface circle and (8).

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明メカニカルノールの実施例を示し第1図は
半部縦断側面図、第2図は第1図におけるY2− Y2
投影の一部を示し、第3図は、第1図における溝間を一
部に複数個設けた実施例を示す。 (1)・・・・・ケー/ング。  (2)・・・・・カ
バ。   (3)  ・/ヤフトニ+41・・・・パツ
キン。   (5)・ストツバ。 (6)・  バノキ
/。 (力・・密封環。  (8)・・・面。     (9
)  ・内筒。 qト密封環。  (11トパッキン。  !121・・
・・ノック。 (131穴。    u枦・面。     u5+・・
・スフ°1)ング。 (ロ)・・・溝。    txt・密封流体。 特許出願人 株式会社荒井製作所
The drawings show an embodiment of the mechanical knoll of the present invention, and Fig. 1 is a half longitudinal side view, and Fig. 2 is a Y2-Y2 in Fig. 1.
FIG. 3 shows a part of the projection, and shows an embodiment in which a plurality of grooves in FIG. 1 are provided in a part. (1)...K/Ng. (2)・・・Hippo. (3) ・/Yaftoni+41・・・・Patsukin. (5)・Stotsuba. (6)・Banoki/. (Force... Sealing ring. (8)... Surface. (9
)・Inner cylinder. q Sealing ring. (11 packing. !121...
··knock. (131 holes. U-shape/face. u5+...
・Suf°1) ng. (b)...Groove. txt・Sealing fluid. Patent applicant Arai Seisakusho Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 密封端面に、半径方向に対して直角方向のほぼ直線をな
す溝を任意数設けたことを特徴とするメカニカルシール
A mechanical seal characterized by having an arbitrary number of substantially straight grooves perpendicular to the radial direction provided on the sealing end surface.
JP21970882A 1982-12-15 1982-12-15 Mechanical seal Pending JPS59110959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21970882A JPS59110959A (en) 1982-12-15 1982-12-15 Mechanical seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21970882A JPS59110959A (en) 1982-12-15 1982-12-15 Mechanical seal

Publications (1)

Publication Number Publication Date
JPS59110959A true JPS59110959A (en) 1984-06-27

Family

ID=16739717

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21970882A Pending JPS59110959A (en) 1982-12-15 1982-12-15 Mechanical seal

Country Status (1)

Country Link
JP (1) JPS59110959A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015046343A1 (en) * 2013-09-27 2015-04-02 イーグル工業株式会社 Sliding component
WO2016042995A1 (en) * 2014-09-20 2016-03-24 イーグル工業株式会社 Sliding component
WO2016042989A1 (en) * 2014-09-20 2016-03-24 イーグル工業株式会社 Sliding component
US20170241549A1 (en) * 2014-11-08 2017-08-24 Eagle Industry Co., Ltd. Slide component
US20180187785A1 (en) * 2015-06-27 2018-07-05 Eagle Industry Co., Ltd. Sliding component

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9581200B2 (en) 2013-09-27 2017-02-28 Eagle Industry Co., Ltd. Sliding parts
CN105358883A (en) * 2013-09-27 2016-02-24 伊格尔工业股份有限公司 Sliding component
WO2015046343A1 (en) * 2013-09-27 2015-04-02 イーグル工業株式会社 Sliding component
JPWO2015046343A1 (en) * 2013-09-27 2017-03-09 イーグル工業株式会社 Sliding parts
AU2014325239B2 (en) * 2013-09-27 2017-01-12 Eagle Industry Co., Ltd. Sliding parts
JPWO2016042995A1 (en) * 2014-09-20 2017-07-13 イーグル工業株式会社 Sliding parts
WO2016042989A1 (en) * 2014-09-20 2016-03-24 イーグル工業株式会社 Sliding component
CN106537005A (en) * 2014-09-20 2017-03-22 伊格尔工业股份有限公司 Sliding component
WO2016042995A1 (en) * 2014-09-20 2016-03-24 イーグル工業株式会社 Sliding component
JPWO2016042989A1 (en) * 2014-09-20 2017-09-14 イーグル工業株式会社 Sliding parts
AU2015319402B2 (en) * 2014-09-20 2018-04-05 Eagle Industry Co., Ltd. Sliding component
AU2015319396B2 (en) * 2014-09-20 2018-07-05 Eagle Industry Co., Ltd. Sliding component
US10274086B2 (en) 2014-09-20 2019-04-30 Eagle Industry Co., Ltd. Sliding component
US10344867B2 (en) 2014-09-20 2019-07-09 Eagle Industry Co., Ltd. Sliding component
US20170241549A1 (en) * 2014-11-08 2017-08-24 Eagle Industry Co., Ltd. Slide component
US10443737B2 (en) * 2014-11-08 2019-10-15 Eagle Industry Co., Ltd. Slide component
US20180187785A1 (en) * 2015-06-27 2018-07-05 Eagle Industry Co., Ltd. Sliding component

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