JPH0579360A - Butterfly valve - Google Patents
Butterfly valveInfo
- Publication number
- JPH0579360A JPH0579360A JP24166191A JP24166191A JPH0579360A JP H0579360 A JPH0579360 A JP H0579360A JP 24166191 A JP24166191 A JP 24166191A JP 24166191 A JP24166191 A JP 24166191A JP H0579360 A JPH0579360 A JP H0579360A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- holder
- passage
- rotary shaft
- fixed
- 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
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、排気通路等の高温流体
通路を開閉するバルブに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve for opening and closing a high temperature fluid passage such as an exhaust passage.
【０００２】[0002]
【従来の技術】従来この種の技術としては、例えば、実
公昭６２−１２８３７公報があるが、これは、エンジン
の排気管中に設けられ排気ガス通路を開閉する排気ブレ
ーキバルブを構成し、該排気ブレーキバルブを作動をす
るアクチユエータを構成する。2. Description of the Related Art Conventionally, as a technique of this type, for example, there is JP-B-62-12837, which constitutes an exhaust brake valve for opening and closing an exhaust gas passage provided in an exhaust pipe of an engine. Configure an actuator that operates the exhaust brake valve.
【０００３】ここで、バルブ本体の内径通路内には円形
状の弁体が配置されている。バルブ本体の側方に設けら
れた一対の貫通孔内には軸受を配置し、軸受により弁体
を支持する回転軸が軸支され、弁体と回転軸とは圧入固
定されている。Here, a circular valve body is arranged in the inner diameter passage of the valve body. A bearing is arranged in a pair of through holes provided on the sides of the valve body, and a rotary shaft that supports the valve body is axially supported by the bearing, and the valve body and the rotary shaft are press-fitted and fixed.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上述の従来の
ものでは、圧入するための弁体側の切欠は通常、寸法の
ばらつき及び組立性等を考慮し回転軸の外径より大きめ
に形成されるが、これにより形成は回転軸と弁体間に隙
間ができる。又隙間の分だけ弁体の位置がずれる恐れが
生じるため、それを考慮にいれて通路内径と弁体との隙
間を大きく設定する必要がある。従って回転軸と弁軸
間、及び通路内径と弁体間の隙間からの閉弁時の漏れ量
が大きいという問題点がある。However, in the above-mentioned prior art, the notch on the valve body side for press-fitting is usually formed to be larger than the outer diameter of the rotary shaft in consideration of dimensional variation and assemblability. However, this creates a gap between the rotary shaft and the valve body. In addition, the position of the valve element may be displaced by the amount of the clearance, so that it is necessary to set the clearance between the inner diameter of the passage and the valve element to be large in consideration of it. Therefore, there is a problem that the amount of leakage at the time of valve closing is large between the rotary shaft and the valve shaft, and from the gap between the passage inner diameter and the valve body.
【０００５】そこで、本発明では、回転軸と弁体間及び
通路内径と弁体間からの漏れを減少することを技術的課
題とする。Therefore, it is a technical object of the present invention to reduce leakage between the rotary shaft and the valve body and between the passage inner diameter and the valve body.
【０００６】[0006]
【０００７】[0007]
【課題を解決するための手段】上述した本発明の技術的
課題を解決するために講じた本発明の技術的手段は、高
温流体通路と、該高温流体通路を開閉させるバルブと、
該バルブの中心軸の両端部に設けられたホルダと、前記
バルブを回動させる回転軸と、該回転軸を受け止める軸
受とからなり、前記バルブが前記ホルダの中心軸に圧入
固定されるバタフライバルブにおいて、前記ホルダの中
心軸上に圧入固定されたバルブと前記ホルダとの周辺部
を溶接によつて固定したことを特徴とするものである。The technical means of the present invention taken to solve the above-mentioned technical problem of the present invention is a high temperature fluid passage, a valve for opening and closing the high temperature fluid passage,
A butterfly valve including holders provided at both ends of a central axis of the valve, a rotary shaft that rotates the valve, and a bearing that receives the rotary shaft, and the valve is press-fitted and fixed to the central axis of the holder. In the above, the valve and the peripheral portion of the holder press-fitted and fixed on the central axis of the holder are fixed by welding.
【０００８】[0008]
【作用】上述した本発明の技術的手段によれば、バルブ
とホルダ間の隙間がなくなることにより、この部分から
の漏れを防止できると共に、バルブ軸心と回転軸中心と
の組立時及び使用中のずれが生じなくなるため、バルブ
外周と通路内径との隙間を最小限に設定でき、この部分
からの漏れを低減することができる。According to the above-mentioned technical means of the present invention, since the gap between the valve and the holder is eliminated, leakage from this portion can be prevented, and at the time of assembling the valve shaft center and the rotating shaft center and during use. Since no deviation occurs, the gap between the outer circumference of the valve and the inner diameter of the passage can be set to a minimum, and leakage from this portion can be reduced.
【０００９】[0009]
【実施例】以下、本発明の技術的手段を具体化した実施
例について添付図面に基づき詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the technical means of the present invention will be described in detail below with reference to the accompanying drawings.
【００１０】図１及至図２において、バタフライバルブ
１００は、排気管中に設けられ、内径部１１ａは、高温
流体通路１１の一部を構成している。円板状のバルブ２
０は、ボデー１０の内径部１１ａと当接しないように、
ある程度の隙間を持って高温流体通路１１内に配設され
ている。1 to 2, the butterfly valve 100 is provided in the exhaust pipe, and the inner diameter portion 11a constitutes a part of the high temperature fluid passage 11. Disc-shaped valve 2
0, so as not to contact the inner diameter portion 11a of the body 10,
They are arranged in the high temperature fluid passage 11 with a certain gap.
【００１１】バルブ２０の中心軸上両端部には、切欠部
２１が形成され、切欠部２１にホルダ６０が挿入され
る。ホルダ６０が挿入された後、ホルダ６０の全周に溶
接部６２が施され溶接固定される。ホルダ６０の中心軸
上外面には、凹部６１が形成され、凹部６１には、回転
軸３０及び４０の中心軸上に形成された矩形断面形状の
凸部３１及び４１が圧入固定される。更に回転軸３０及
び４０は、ボデー１０の中心軸上両側壁に形成された貫
通孔１２及び１３に挿入された軸受５０及び５１に回転
可能に軸支される。Notches 21 are formed at both ends on the central axis of the valve 20, and a holder 60 is inserted into the notches 21. After the holder 60 is inserted, the welded portion 62 is applied to the entire circumference of the holder 60 and fixed by welding. A recess 61 is formed on the outer surface on the center axis of the holder 60, and the projections 31 and 41 having a rectangular cross-section formed on the center axes of the rotating shafts 30 and 40 are press-fitted and fixed in the recess 61. Further, the rotating shafts 30 and 40 are rotatably supported by bearings 50 and 51 inserted into through holes 12 and 13 formed in both side walls on the central axis of the body 10.
【００１２】次にバタフライバルブ１００のボデーの側
方壁にある盲板７０は、ボルト９０にて固定され、貫通
孔１２の外方端を塞ぐように閉塞している。また一方の
貫通孔１３は、ボデー１０にボルト９０で固定されたブ
ラケツト８０より閉塞されている。またブラケツト８０
は、アクチユエータ（図示省略）との連結用でありアク
チユエータからの作動を回転軸４０に伝達するようにな
つている。Next, the blind plate 70 on the side wall of the body of the butterfly valve 100 is fixed by a bolt 90 and is closed so as to close the outer end of the through hole 12. The one through hole 13 is closed by a bracket 80 fixed to the body 10 with a bolt 90. Bracket 80
Is for connection with an actuator (not shown) and transmits the operation from the actuator to the rotary shaft 40.
【００１３】上記の構成において、アクチユエータの駆
動力により回転軸４０が回転し、回転軸４０に圧入固定
されたホルダ６０と、更にはホルダ６０に溶接固定され
たバルブ２０が回転し、高温流体通路１１を開閉する。In the above structure, the rotary shaft 40 is rotated by the driving force of the actuator, the holder 60 press-fitted and fixed to the rotary shaft 40 and the valve 20 welded and fixed to the holder 60 are rotated, and a high temperature fluid passage is formed. Open and close 11.
【００１４】従来の構成では、バルブに回転軸を圧入す
る際にバルブを通路内に正確に保持しないと切欠部を外
れて圧入する恐れがあり、また熱変形及び振動等により
ゆるみを生じることがありバルブがずれて通路内径部と
干渉して異音発生、且つ破損の恐れがあつたが、本実施
例では、ホルダ６０の凹部に回転軸３０及び４０の凸部
３１及び４１を圧入する構造のため誤つて圧入する恐れ
がなくつた。In the conventional structure, when the rotary shaft is press-fitted into the valve, the valve may not be accurately held in the passage, and there is a risk of press-fitting out of the cutout portion, and loosening may occur due to thermal deformation and vibration. There is a risk that the valve will shift and interfere with the inner diameter of the passage to cause abnormal noise and damage. In this embodiment, however, the protrusions 31 and 41 of the rotary shafts 30 and 40 are press-fitted into the recesses of the holder 60. Because of this, there was no danger of accidentally pressing in.
【００１５】また、本発明の構成では、凸部３１及び４
１が矩形断面のため、使用中にバルブ２０のずれを生じ
ることがなくなり、常にバルブ２０の軸心が通路軸心と
同軸上に保持される。バルブ２０がずれても路内経路と
干渉して異音及び破損を防止することができる。Further, in the configuration of the present invention, the convex portions 31 and 4 are
Since 1 has a rectangular cross section, the valve 20 is not displaced during use, and the axis of the valve 20 is always kept coaxial with the axis of the passage. Even if the valve 20 is displaced, it can interfere with the in-road route and prevent abnormal noise and damage.
【００１６】[0016]
【発明の効果】上述したように本発明では、バルブの中
心軸両端部にホルダを気密的に溶接固定し、中心軸両端
部と同軸上に回転軸を圧入固定する構造によりバルブと
ホルダ間の漏れがなくなり、またバルブと回転軸との相
対位置が組立時及び使用時にずれる恐れがなく、バルブ
と通路内径との隙間を最小限に設定でき、隙間からの漏
れを低減することができる。As described above, according to the present invention, the structure in which the holder is hermetically welded and fixed to both ends of the central axis of the valve and the rotary shaft is press-fitted and fixed coaxially with both ends of the central axis is provided between the valve and the holder. There is no leakage, and there is no risk that the relative position between the valve and the rotary shaft will shift during assembly and use, the gap between the valve and the inner diameter of the passage can be set to a minimum, and leakage from the gap can be reduced.
【図１】本発明の側断面図FIG. 1 is a side sectional view of the present invention.
【図２】図１にて示されたＡ−Ａ線に沿う断面図FIG. 2 is a sectional view taken along the line AA shown in FIG.
１０・・・ボデー １１・・・高温流体通路 １１ａ・・・内径部 １２・・・貫通孔 １３・・・貫通孔 ２０・・・バルブ ２１・・・切欠部 ３０・・・回転軸 ３１・・・凸部 ４０・・・回転軸 ４１・・・凸部 ５０・・・軸受 ５１・・・軸受 ６０・・・ホルダ ６１・・・凹部 ６２・・・溶接部 ７０・・・盲板 ８０・・・ブラツケツト 10 ... Body 11 ... High temperature fluid passage 11a ... Inner diameter portion 12 ... Through hole 13 ... Through hole 20 ... Valve 21 ... Notch portion 30 ... Rotating shaft 31 ... -Convex portion 40 ... Rotating shaft 41 ... Convex portion 50 ... Bearing 51 ... Bearing 60 ... Holder 61 ... Recessed portion 62 ... Welded portion 70 ... Blind plate 80 ... .Brackets
Claims (1)
させるバルブと、該バルブの中心軸の両端部に設けられ
たホルダと、前記バルブを回動させる回転軸と、該回転
軸を受け止める軸受とからなり、前記バルブが前記ホル
ダの中心軸に圧入固定されるバタフライバルブにおい
て、 前記ホルダの中心軸上に圧入固定されたバルブと前記ホ
ルダとの周辺部を溶接によつて固定したことを特徴とす
るバタフライバルブ。1. A high temperature fluid passage, a valve for opening and closing the high temperature fluid passage, holders provided at both ends of a central axis of the valve, a rotary shaft for rotating the valve, and a rotary shaft for receiving the rotary shaft. A butterfly valve comprising a bearing, in which the valve is press-fitted and fixed to the central axis of the holder, wherein the peripheral portion of the valve and the holder press-fitted and fixed on the central axis of the holder is fixed by welding. Characteristic butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24166191A JPH0579360A (en) | 1991-09-20 | 1991-09-20 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24166191A JPH0579360A (en) | 1991-09-20 | 1991-09-20 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0579360A true JPH0579360A (en) | 1993-03-30 |
Family
ID=17077641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24166191A Pending JPH0579360A (en) | 1991-09-20 | 1991-09-20 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0579360A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5995321A (en) * | 1995-11-02 | 1999-11-30 | Fujitsu Limited | Carriage structure for disk device |
-
1991
- 1991-09-20 JP JP24166191A patent/JPH0579360A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5995321A (en) * | 1995-11-02 | 1999-11-30 | Fujitsu Limited | Carriage structure for disk device |
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