JPS6243123Y2 - - Google Patents
Info
- Publication number
- JPS6243123Y2 JPS6243123Y2 JP1983181957U JP18195783U JPS6243123Y2 JP S6243123 Y2 JPS6243123 Y2 JP S6243123Y2 JP 1983181957 U JP1983181957 U JP 1983181957U JP 18195783 U JP18195783 U JP 18195783U JP S6243123 Y2 JPS6243123 Y2 JP S6243123Y2
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- seal ring
- bolt hole
- fastened
- neck
- 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 7
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Connection Of Plates (AREA)
- Gasket Seals (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
この考案は、ボルト締結部のシール構造、殊に
潅水部や水蒸気に包まれる状態の中で使用される
構造物におけるボルト締結部のシール構造に関す
る。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a sealing structure for a bolted joint, and particularly to a sealing structure for a bolted joint in a structure used in a irrigation area or in a state surrounded by water vapor.
従来技術
従来ボルト締結部のシール構造としては、特公
昭45−34533号公報記載のようにボルト頚部の下
方の軸部に設けた周溝にシールリングを装着し、
ボルト孔と軸部間をシールする構造、およびボル
ト頭部の下面と被結合部材との間にシールリング
を挾持せしめてボルト孔をシールする構造が知ら
れている。しかし、前者の構造では、シールリン
グがボルト頚部より下方に装着されるため、ボル
ト孔内への水、水蒸気等の侵入を許してしまう
し、後者の構造は、シールリングがボルトの締付
けで直接圧縮されるため、ボルトを高い締付け力
で締付ける場合にはシールリングがつぶれたり、
締付け力にバラツキを生じるので、使用できな
い。また英国特許第831874号明細書記載のように
シールリングにメタルリングを併用する構造も知
られているが、ボルトの締付け力が大きい場合に
は、メタルリングがへたり、確実なボルト締結が
出来なくなる。Prior Art Conventionally, as a sealing structure for a bolt fastening part, as described in Japanese Patent Publication No. 45-34533, a seal ring is attached to a circumferential groove provided in the lower shaft part of the bolt neck.
A structure is known in which a bolt hole is sealed between a bolt hole and a shaft portion, and a structure is known in which a seal ring is sandwiched between a lower surface of a bolt head and a member to be joined to seal a bolt hole. However, in the former structure, the seal ring is installed below the bolt neck, allowing water, water vapor, etc. to enter into the bolt hole, and in the latter structure, the seal ring is installed directly below the bolt neck. Because it is compressed, the seal ring may be crushed or crushed if the bolt is tightened with high tightening force.
It cannot be used because it causes variations in the tightening force. Furthermore, a structure in which a metal ring is used in combination with a seal ring as described in British Patent No. 831874 is also known, but if the bolt tightening force is too large, the metal ring will wear out, making it impossible to securely fasten the bolt. It disappears.
又、圧延機駆動ロール用のユニバーサルジヨイ
ントは、高温化した多量の冷却水を被潅し、また
多量に発生する水蒸気雰囲気中で使用されるため
に、そのケース固定ボルトが腐食しやすいという
問題がある。この腐食は、強大な締結力による応
力腐食の発生の原因となりボルトの早期破損、折
損等を招く。 In addition, universal joints for rolling mill drive rolls are exposed to a large amount of high-temperature cooling water and are used in an atmosphere of large amounts of steam, resulting in the problem that the case fixing bolts are susceptible to corrosion. There is. This corrosion causes stress corrosion due to the strong fastening force, leading to early damage and breakage of the bolt.
このような腐食対策として、ステンレス鋼製の
ボルトの使用が考えられるが、これは価格、及び
加工面において問題があり、汎用性がない。また
特に高張力が要求される使用個所では強度上にも
問題があつて好ましくない。 As a countermeasure against such corrosion, it is possible to use stainless steel bolts, but this has problems in terms of cost and processing, and is not versatile. Furthermore, especially in locations where high tension is required, there is a problem in terms of strength, which is undesirable.
一方、ボルト締結部において、ボルトの締結力
をいかに強力にしても、ボルト頭部の軸側端面と
その締結座面との間、および被締結部材の接合面
間とが完全に密着しない場合が多い。これは前記
端面と座面、接合面のそれぞれの仕上げ粗さ被締
結部材に働く偏荷重等の原因により、前記各面間
に微小スキマ或は片当りによる微小スキマが生ず
るためであり、殊に多量の水を被潅する場合、多
量の水蒸気が発生する場合、高圧蒸気雰囲気で使
用される場合等に、前記微小スキマから容易に水
分が侵入してボルトを腐食させ、殊に締結力を大
きくしたときの応力腐食が問題となる。 On the other hand, in bolted parts, no matter how strong the bolt tightening force is, sometimes the shaft-side end surface of the bolt head and its fastening seat surface, and the joint surfaces of the fastened parts do not come into perfect contact. many. This is because a minute gap or a minute gap due to uneven contact occurs between the respective surfaces due to the finish roughness of the end surface, the seat surface, and the joint surface, uneven loads acting on the fastened members, etc. When exposed to a large amount of water, when a large amount of water vapor is generated, when used in a high-pressure steam atmosphere, etc., water can easily enter through the minute gaps and corrode the bolt, especially if the fastening force is too high. When this occurs, stress corrosion becomes a problem.
考案の目的
この考案は、以上のようなボルト締結部におい
て、高い耐食防護効果を発揮させ、かつ汎用性の
高いシール構造を提供することを目的とするもの
である。Purpose of the invention The purpose of this invention is to provide a highly versatile sealing structure that exhibits a high corrosion-resistant protection effect in the above-mentioned bolted joint.
考案の構成作用
本考案はボルトの頚部と、被締結部材の接合部
位に臨むボルトの軸部とにシールリングを固着
し、ボルトを挿入するボルト孔の開口部と、前記
接合部位とを、前記シールリングにより完全に密
封し、前記ボルト孔内への水、水蒸気等の腐食要
因の侵入を完全に防止したことを特徴とするもの
である。Structure and Function of the Invention The present invention fixes a seal ring to the neck of the bolt and the shank of the bolt facing the joining area of the fastened members, and connects the opening of the bolt hole into which the bolt is inserted and the joining area. It is characterized in that it is completely sealed by a seal ring, completely preventing corrosive factors such as water and steam from entering the bolt hole.
実施例
以下この考案を図示の実施例について説明す
る。１はボルトであつて、被締結部材２，３に貫
設されたボルト孔４に挿入され、ねじ５に螺合し
て被締結部材２，３を強力に締結する。Embodiments This invention will be described below with reference to illustrated embodiments. A bolt 1 is inserted into a bolt hole 4 extending through the members 2 and 3 to be fastened, and is screwed into a screw 5 to strongly fasten the members 2 and 3 to be fastened.
以上において、ボルト軸部７のボルト頭部６に
連続する頚部７ａと、被締結部材２，３の接合部
位９に臨むボルト軸部７ｂとの全周に、ゴム、合
成樹脂等の柔軟弾性材料よりなるシールリング
８，１０を固着し、ボルト孔４の開口部４ａ全
周、および接合部位９の全周を前記シールリング
８，１０により完全にシールする。 In the above, a flexible elastic material such as rubber or synthetic resin is used around the entire circumference of the neck portion 7a of the bolt shaft portion 7 that is continuous with the bolt head 6 and the bolt shaft portion 7b that faces the joint portion 9 of the fastened members 2 and 3. The seal rings 8 and 10 made of the above are fixed, and the entire circumference of the opening 4a of the bolt hole 4 and the entire circumference of the joint portion 9 are completely sealed by the seal rings 8 and 10.
シールリング８，１０は、第２図にその詳細を
示すように、軸方向にある長さをもつ筒状体とな
し、その軸方向両端部外径に比べて、軸方向中央
部外径が大きくなるように、その外周面が断面円
孤状に脹らんだ形状に成形し、少なくともボルト
孔４の内径面に対し前記軸方向中央部が適度のシ
メシロをもつて密嵌する構成となるよう前記頚部
７ａ、軸部７ｂに対して加硫成形し同体に結合さ
せる。またシールリング８，１０は別体に成形し
てボルトの所定位置に嵌着し、焼着け、接着等に
より結合させてもよい。 As shown in detail in FIG. 2, the seal rings 8 and 10 are cylindrical bodies with a certain length in the axial direction, and the outer diameter of the center part in the axial direction is larger than the outer diameter of both ends in the axial direction. The outer circumferential surface thereof is formed into a swollen shape with a cross-sectional arc shape so that the bolt hole 4 is enlarged, and the axial center portion is tightly fitted with at least the inner diameter surface of the bolt hole 4 with an appropriate degree of interference. The neck portion 7a and shaft portion 7b are vulcanized and bonded together. Further, the seal rings 8 and 10 may be molded separately, fitted onto a predetermined position of a bolt, and connected by burning, adhesion, or the like.
また３個以上の被締結部材を１つのボルトで締
結する場合、ボルト孔のボルト挿入用開口部と、
２個所以上に形成される被締結部材の接合部相当
位置に前記シールリングを設ける。 In addition, when three or more members to be fastened are fastened with one bolt, the bolt insertion opening of the bolt hole,
The seal ring is provided at a position corresponding to a joining portion of the fastened members formed at two or more locations.
考案の効果
本願考案は、前記構成であり、ボルト挿入用の
開口端部と、被締結部材の接合部位とにおけるボ
ルト孔の内周面全周を、ボルトに固着したシール
リングにより完全にシールするものであるから、
多量の水の潅水部、或は高温蒸気、高圧蒸気雰囲
気内で使用されるものにおいて、ボルト孔に水分
が侵入するのを完全に防止し、ボルトの腐食をき
わめて効果的に防止する。Effects of the invention The invention of the present application has the above-mentioned configuration, and completely seals the entire inner circumference of the bolt hole at the open end for bolt insertion and the joint portion of the fastened member with a seal ring fixed to the bolt. Because it is a thing,
To completely prevent moisture from entering a bolt hole in a part used in irrigation with a large amount of water, or in a high-temperature steam or high-pressure steam atmosphere, and to extremely effectively prevent bolt corrosion.
従つてステンレス鋼製ボルトを使用することに
よるコスト面、強度面、加工面での種々の問題点
を解消し、廉価で強力な鋼材を用いてボルトを製
作し、特に圧延機駆動ロール用のユニバーサルジ
ヨイントケースのように強力な締結力が要求され
る部分に好適なものを提供し、シール構造が簡単
であるから、きわめて広範囲の分野の使用に適応
させることができる。 Therefore, we have solved various problems in terms of cost, strength, and processing that are caused by using stainless steel bolts, and we have created bolts using inexpensive and strong steel materials, especially universal ones for rolling mill drive rolls. It is suitable for parts that require strong fastening force, such as joint cases, and because the seal structure is simple, it can be adapted to use in an extremely wide range of fields.
しかも、頚部のシールリングを、ボルトが挿入
されるボルト孔の開口端部内面全周に嵌着し、ま
たボルト軸部のシールリングを、接合部位の内面
全周に嵌着せしめるので、シールリングが、ボル
トの締付けで直接圧縮されることがなく、シール
リングがつぶれたり、ボルトの締付け力にバラツ
キが生じることがない。 Moreover, the seal ring on the neck is fitted around the entire inner circumference of the opening end of the bolt hole into which the bolt is inserted, and the seal ring on the bolt shaft is fitted around the entire inner circumference of the joint area. However, it is not directly compressed when the bolt is tightened, so the seal ring will not be crushed and the bolt tightening force will not vary.
さらに、ボルトの頚部と、被締結部材の接合部
位に臨むボルト軸部とに、シールリングを固着し
ているので、ボルト孔にボルトを挿入して締付け
ることによりボルト孔の開口端部と、接合部位と
にシールリングが位置し、必要部位でのシールが
確実に行われる。 Furthermore, since a seal ring is fixed to the neck of the bolt and the bolt shaft facing the joint part of the fastened parts, by inserting the bolt into the bolt hole and tightening it, the opening end of the bolt hole and the joint are connected. A seal ring is positioned at the area to ensure sealing at the required area.
さらにまた、シールリングが筒状体で、かつ、
ボルトに固着しているので被締結部材にシール装
着用の溝や段部等の加工をする必要がなく、ある
いはシールリング保持具も必要でなく、したがつ
て被締結部材にはボルト孔を形成するだけでよ
く、しかも単にボルトを挿入して締付けるだけで
シールが行えるので汎用性に富むものである。 Furthermore, the seal ring is a cylindrical body, and
Since it is fixed to the bolt, there is no need to process grooves or steps for attaching the seal to the fastened part, or a seal ring holder, so a bolt hole is formed in the fastened part. Moreover, it is highly versatile because it can be sealed simply by inserting and tightening the bolt.
またシールリング８，１０を筒状体とし、その
外周面の軸方向中央部を脹らませた構成としたの
で、ボルト孔へのボルトの挿入が容易となると同
時に、シールリングとボルト孔との間のシメシロ
を適正に保ち、しかもボルト挿入時にシールリン
グの端がまくれることがなく、ボルトの締付け作
業を容易ならしめ、シール機能を劣化させるおそ
れもない。 In addition, the seal rings 8 and 10 are made into cylindrical bodies, and the axially central portion of the outer circumferential surface of the seal rings 8 and 10 is swollen. This makes it easy to insert bolts into bolt holes, and at the same time, the seal rings and bolt holes can be easily inserted. The seal ring maintains an appropriate clearance between the bolts, and the end of the seal ring does not roll up when inserting the bolt, making bolt tightening work easier and eliminating the risk of deteriorating the sealing function.
第１図は本考案の１実施例の断面図、第２図は
主要部を拡大して示す図である。
１……ボルト、２，３……被締結部材、４……
ボルト孔、７……軸部、７ａ……頚部、７ｂ……
接合部位に臨む軸部、８，１０……シールリン
グ、９……接合部位。
FIG. 1 is a sectional view of one embodiment of the present invention, and FIG. 2 is an enlarged view of the main parts. 1... Bolt, 2, 3... Member to be fastened, 4...
Bolt hole, 7...shaft, 7a...neck, 7b...
Shaft facing the joining site, 8, 10... Seal ring, 9... Joining site.
Claims (1)
１で締結する構造において、 柔軟弾性材料からなる筒状体とし、その軸方向
中央部外径に比べて軸方向端部の外径を小さく
し、かつ、少なくとも前記中央部をボルト孔４に
嵌着可能な外径としたシールリングを、 ボルト１の頚部７ａと、被締結部材２，３の接
合部位９に臨むボルト軸部７ｂの各々の外周面に
固着し、 前記頚部７ａのシールリング８を、ボルトが挿
入されるボルト孔４の開口端部内面全周に嵌着せ
しめ、 前記ボルト軸部７ｂのシールリング１０を、ボ
ルト孔４の前記接合部位の内面全周に嵌着位置せ
しめたことを特徴とする ボルト締結部のシール構造。[Claims for Utility Model Registration] In a structure in which at least two members 2 and 3 are joined together and fastened by a bolt 1, the cylindrical body is made of a flexible elastic material, and the outer diameter of the central part in the axial direction is A seal ring having a small outer diameter at the end and having an outer diameter that allows at least the central portion to be fitted into the bolt hole 4 is attached to the neck 7a of the bolt 1 and the joint portion 9 of the fastened members 2 and 3. The seal ring 8 of the neck portion 7a is fitted to the entire inner circumference of the opening end of the bolt hole 4 into which the bolt is inserted, and the seal ring of the bolt shaft portion 7b is fixed to the outer peripheral surface of each facing bolt shaft portion 7b. A sealing structure for a bolt fastening part, characterized in that a ring 10 is fitted over the entire inner circumference of the joint part of the bolt hole 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18195783U JPS6088107U (en) | 1983-11-24 | 1983-11-24 | Seal structure of bolt joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18195783U JPS6088107U (en) | 1983-11-24 | 1983-11-24 | Seal structure of bolt joints |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6088107U JPS6088107U (en) | 1985-06-17 |
| JPS6243123Y2 true JPS6243123Y2 (en) | 1987-11-09 |
Family
ID=30394166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18195783U Granted JPS6088107U (en) | 1983-11-24 | 1983-11-24 | Seal structure of bolt joints |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6088107U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007042156A1 (en) * | 2007-09-05 | 2009-03-12 | Man Diesel Se | Connecting arrangement, in particular for bracing a cylinder head, with a crankcase of a reciprocating internal combustion engine |
| KR102157341B1 (en) * | 2020-06-29 | 2020-09-17 | 모베나코리아 유한책임회사 | Rudder having apparatus for measuring the amount of wear of rudder bearing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51151008U (en) * | 1975-05-27 | 1976-12-02 |
-
1983
- 1983-11-24 JP JP18195783U patent/JPS6088107U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51151008U (en) * | 1975-05-27 | 1976-12-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6088107U (en) | 1985-06-17 |
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