JPS6210546Y2 - - Google Patents
Info
- Publication number
- JPS6210546Y2 JPS6210546Y2 JP15863283U JP15863283U JPS6210546Y2 JP S6210546 Y2 JPS6210546 Y2 JP S6210546Y2 JP 15863283 U JP15863283 U JP 15863283U JP 15863283 U JP15863283 U JP 15863283U JP S6210546 Y2 JPS6210546 Y2 JP S6210546Y2
- Authority
- JP
- Japan
- Prior art keywords
- main body
- valve
- peripheral surface
- outer peripheral
- shaft support
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 210000000078 claw Anatomy 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Valve Housings (AREA)
Description
【考案の詳細な説明】
この考案は、流体通路の開閉時に使用するバタ
フライ弁に関し、特に鋳造後の本体内周面の加工
精度を向上し、且容易に行い得るバタフライ弁の
本体構造に関する。[Detailed Description of the Invention] This invention relates to a butterfly valve used for opening and closing a fluid passage, and particularly relates to a main body structure of a butterfly valve that improves the machining accuracy of the inner peripheral surface of the main body after casting and that can be easily performed.
従来周知のように、バタフライ弁の基本構造は
第５図に示すように、剛性材料からなる中空円筒
状の本体１と、この本体１内に回動自在に軸支さ
れる同じく剛性材料からなる円板状の弁体２と、
本体１の内周面と弁体２の周縁部との間に介在す
る金属若しくは弾性材料からなるシートリング３
からなる。 As is well known in the art, the basic structure of a butterfly valve, as shown in FIG. a disk-shaped valve body 2;
A seat ring 3 made of metal or elastic material and interposed between the inner peripheral surface of the main body 1 and the peripheral edge of the valve body 2
Consisting of
通常バタフライ弁は、中空円筒状の本体１を鋳
造成形した後、本体内周面並びにシートリング３
を介在させる周辺部を特に高い寸法精度と加工精
度で切削加工する。しかる後、弁体２を軸支する
軸支部４のボーリング加工及び配管フランジ６を
接合するためのボルト孔５を加工する。後者の軸
支部４のボーリング加工並びにボルト孔加工は、
前者の本体内周面の加工中心を基準として加工さ
れているため、本体内周面の精度が不安定であれ
ば、後者の加工精度も不安定となりバタフライ弁
の品質、性能を低下させることとなる。 Normally, a butterfly valve is manufactured by casting a hollow cylindrical main body 1, and then molding the inner peripheral surface of the main body and the seat ring 3.
The surrounding area where the material is interposed is machined with particularly high dimensional and processing accuracy. Thereafter, boring is performed on the shaft support 4 that pivotally supports the valve body 2, and bolt holes 5 for joining the piping flange 6 are worked. The latter boring and bolt hole machining of the shaft support 4 are carried out by
Since the machining center of the inner circumferential surface of the former body is used as a reference, if the accuracy of the inner circumferential surface of the main body is unstable, the machining accuracy of the latter will also be unstable, which may reduce the quality and performance of the butterfly valve. Become.
特に弁軸軸支部４に、図示のようなボス部７が
張り出した形状のものにおいては、ボス部７を通
る断面形状と、これと直交する方向の断面形状が
大きく異なるために、施削盤に取り付ける際第６
図に示すように本体１の周面方向からボス部を避
けて旋削盤の爪８で矢印方向に押圧しつつ固定し
て、本体内周面の切削加工を行つている。このた
め、本体内周面の加工後、旋削盤より取り外すと
内面がボス部を通る断面において円弧状に変形し
て来るおそれがあつた。 In particular, when the valve shaft support 4 has a boss portion 7 projecting out as shown in the figure, the cross-sectional shape passing through the boss portion 7 and the cross-sectional shape in the direction perpendicular to this are greatly different, so the machining tool 6th when attached to
As shown in the figure, the inner circumferential surface of the main body 1 is cut by pressing and fixing the main body 1 in the direction of the arrow with claws 8 of a turning machine while avoiding the boss portion from the circumferential direction of the main body 1. For this reason, when the inner peripheral surface of the main body is removed from the turning machine after processing, there is a risk that the inner surface will deform into an arcuate shape in a cross section passing through the boss portion.
かかる本体内周面の変形は、シートリング等の
部品の組み立てを不可能にすることは勿論のこ
と、前記した軸支部のボーリング加工やボルト孔
加工を不正確にするものであつた。 Such deformation of the inner circumferential surface of the main body not only makes it impossible to assemble parts such as the seat ring, but also makes the above-described boring and bolt hole machining of the shaft support inaccurate.
この考案は、従来のバタフライ弁にみられたか
かる問題点を解決すべくなされたものであつて、
その技術的課題は本体内面を正確に所定の寸法精
度及び加工精度をもつて加工出来、しかも旋削盤
から取り外しても変形しないことにある。 This invention was made to solve the problems seen in conventional butterfly valves.
The technical problem is that the inner surface of the main body can be accurately machined with predetermined dimensional accuracy and processing accuracy, and that it will not deform even when removed from the lathe.
上記技術的課題を解決する技術的手段は、剛性
材料からなる中空円筒状の本体と、該本体内に回
転自在に軸支された円板状の弁体と、本体内周面
と弁体外周縁との間に介在されたシートリングと
を備え、本体の外周面に前記弁体の弁軸軸支部を
径方向外方へ突設し、該弁軸軸支部に連続して本
体外周面を円周方向に延びるボス部を形成したバ
タフライ弁において、本体外周面の前記弁軸軸支
部の略中間部に本体の軸心方向と平行な方向から
旋削加工時の爪で固持し得る長さの突起を半径方
向外方へ複数突設したことを特徴とする。 The technical means for solving the above technical problem consists of a hollow cylindrical main body made of a rigid material, a disc-shaped valve body rotatably supported within the main body, and an inner circumferential surface of the main body and an outer circumferential edge of the valve body. and a seat ring interposed between the main body and the valve shaft support of the valve body protrudes radially outward from the outer peripheral surface of the main body. In a butterfly valve having a boss portion extending in the circumferential direction, a protrusion of a length that can be held in place by a pawl during turning from a direction parallel to the axial direction of the main body is provided on the outer circumferential surface of the main body at approximately the middle of the valve shaft support. It is characterized by having a plurality of projecting radially outward.
次にこの考案の実施例を第１図乃至第４図を参
照しつつ説明する。図において１０は、バタフラ
イ弁の本体であつて、従来周知のように剛性材料
からなる中空円筒形状をなし、弁軸軸支部１１，
１２はボス部１３，１４が隣接して形成されてい
るため、これと直角方向部分１５，１６に比べて
形状が複雑で余肉がついている。 Next, an embodiment of this invention will be described with reference to FIGS. 1 to 4. In the figure, reference numeral 10 denotes the main body of the butterfly valve, which has a hollow cylindrical shape made of a rigid material as is conventionally known.
Since the boss portions 13 and 14 are formed adjacent to each other, the shape of the boss portion 12 is more complicated than that of the portions 15 and 16 perpendicular to the boss portions 12, and there is extra thickness.
第２，３図を参照して、本体１０の旋削加工す
べき部分は、本体内周面１９並びに該内周面に隣
接する本体の両側面２０であり、この部分を旋削
盤の爪で固定することは出来ない。従来は、前述
したように本体の外周面を半径方向に向かつて締
め付けていたため、内周面１９を加工する際、ボ
ス部１３，１４と直交する方向部分１５，１６の
薄肉部に集中応力と旋削熱が加わり、取り付し後
本体が円弧状に変形していた。かかる問題点の解
決は、締め付けを半径方向に中心に向かつて締め
付けずに、本体周面と平行な方向、すなわち第３
図矢印方向から締付けを行い、且旋削加工の不要
な部分を固定することにより可能となる。 Referring to FIGS. 2 and 3, the parts of the main body 10 to be turned are the inner circumferential surface 19 of the main body and both side surfaces 20 of the main body adjacent to the inner circumferential surface, and these parts are fixed with claws of a turning machine. I can't do that. Conventionally, as described above, the outer circumferential surface of the main body was tightened in the radial direction, so when processing the inner circumferential surface 19, concentrated stress was generated in the thin parts of the parts 15 and 16 in the direction perpendicular to the boss parts 13 and 14. Due to the heat of turning, the main body was deformed into an arc shape after installation. The solution to this problem is to tighten the bolts in the direction parallel to the circumferential surface of the main body, that is, the third
This is possible by tightening from the direction of the arrow in the figure and fixing the parts that do not require turning.
この考案は、かかる問題点を考慮して突部１
７，１８を本体１の外周面に設けたことを特徴と
する。 This invention takes this problem into consideration and provides a
7 and 18 are provided on the outer peripheral surface of the main body 1.
前記旋削盤の爪による本体の軸心方向と平行な
方向の締付けは、第６図のＡ面を締め付けても達
成可能であるが、このＡ面部分は旋削時にバイト
類の刃物が当たるため加工が困難となる問題点が
ある。 Tightening in the direction parallel to the axial direction of the main body by the pawls of the lathe can be achieved by tightening the A side in Fig. 6, but this A side part is difficult to process because it is hit by the cutter of the cutting tool during turning. There are some problems that make it difficult.
この考案においては、前述したように円心円状
の突部１７，１８を本体１０の外周面に突設し、
この突部１７，１８を第３図に矢印で示すよう
に、本体１０の軸心方向と平行な方向から締付け
る。このとき、本体１０の外周面を半径方向に芯
の振れを防止するに足る小さな力で付加的に締付
けることが望ましい。これにより従来のものにみ
られた問題点を解決することが出来る。 In this invention, as mentioned above, the circular protrusions 17 and 18 are provided protrudingly on the outer peripheral surface of the main body 10,
The protrusions 17 and 18 are tightened in a direction parallel to the axial direction of the main body 10, as shown by the arrows in FIG. At this time, it is desirable to additionally tighten the outer peripheral surface of the main body 10 with a small force sufficient to prevent the core from swinging in the radial direction. This makes it possible to solve the problems seen in the conventional ones.
突部１７，１８は、本体１０を裏返しても締付
け可能な形状及び寸法であることが必要であると
共に、第５図に示すように配管フランジ６を連結
するときに配管ボルト９が当たらない長さである
ことが要求される。通常、突部１７，１８の長さ
は10〜15mm、幅５〜10mm、厚み５〜10mm程度が適
当である。 The protrusions 17 and 18 need to have a shape and size that allows them to be tightened even when the main body 10 is turned over, and also have a length that does not allow the piping bolts 9 to hit when connecting the piping flanges 6, as shown in FIG. It is required that the Normally, the length of the protrusions 17, 18 is approximately 10 to 15 mm, the width is 5 to 10 mm, and the thickness is approximately 5 to 10 mm.
以上のようにして、この考案によれば、突部１
７，１８を旋削盤の爪で本体の軸心方向と平行な
方向に固定して旋削加工を行うことが出来るた
め、本体が円弧状に変形するおそれがなく、本体
内周面を正確に所定の寸法精度及び加工精度で加
工することが出来ると共に、本体の加工後におい
ても突部を削り取る必要がなく、又再加工時にも
容易に芯出しをすることが可能である等の特有の
効果を奏する。 As described above, according to this invention, the protrusion 1
7 and 18 can be fixed in a direction parallel to the axial direction of the main body with the claws of a lathe and turned, so there is no risk of the main body deforming into an arc shape, and the inner circumferential surface of the main body can be accurately set in a specified position. In addition to being able to process with dimensional accuracy and processing accuracy of play.
第１図は、この考案に係るバタフライ弁の斜視
図、第２図は本体の正面図、第３図は同側面図、
第４図は旋削加工時の締付方向を示す図、第５図
は従来のバタフライ弁の斜視図、第６図は従来の
旋削加工時の締付方向を示す図である。
１０……本体、１１，１２……軸支部、１３，
１４……ボス部、１５，１６……薄肉部、１７，
１８……突部、１９……内周面、２０……側面。
Fig. 1 is a perspective view of the butterfly valve according to this invention, Fig. 2 is a front view of the main body, Fig. 3 is a side view of the same,
FIG. 4 is a view showing the tightening direction during turning, FIG. 5 is a perspective view of a conventional butterfly valve, and FIG. 6 is a view showing the tightening direction during conventional turning. 10... Main body, 11, 12... Pivotal support, 13,
14...Boss part, 15, 16...Thin wall part, 17,
18... Protrusion, 19... Inner peripheral surface, 20... Side surface.
Claims (1)
内に回転自在に軸支された円板状の弁体と、本体
内周面と弁体外周縁との間に介在されたシートリ
ングとを備え、本体の外周面に前記弁体の弁軸軸
支部を径方向外方へ突設し、該弁軸軸支部に連続
して本体外周面を円周方向に延びるボス部を形成
したバタフライ弁において、本体外周面の前記弁
軸軸支部の略中間部に本体の軸心方向と平行な方
向から旋削加工時の爪で固持し得る長さの突起を
半径方向外方へ複数突設したことを特徴とするバ
タフライ弁。 The valve body includes a hollow cylindrical main body made of a rigid material, a disc-shaped valve body rotatably supported within the main body, and a seat ring interposed between the inner peripheral surface of the main body and the outer peripheral edge of the valve body. , in a butterfly valve, in which a valve shaft support of the valve body is provided on the outer peripheral surface of the main body to protrude radially outward, and a boss portion is formed continuous with the valve shaft support and extends in the circumferential direction on the outer peripheral surface of the main body. , a plurality of protrusions of a length that can be held by claws during turning processing are provided radially outward in a direction parallel to the axial direction of the main body at approximately the middle of the valve shaft support on the outer peripheral surface of the main body. The characteristic butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15863283U JPS6065477U (en) | 1983-10-13 | 1983-10-13 | butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15863283U JPS6065477U (en) | 1983-10-13 | 1983-10-13 | butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6065477U JPS6065477U (en) | 1985-05-09 |
| JPS6210546Y2 true JPS6210546Y2 (en) | 1987-03-12 |
Family
ID=30349411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15863283U Granted JPS6065477U (en) | 1983-10-13 | 1983-10-13 | butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6065477U (en) |
-
1983
- 1983-10-13 JP JP15863283U patent/JPS6065477U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6065477U (en) | 1985-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6030051A (en) | Two-piece steel wheel | |
| JPS6210546Y2 (en) | ||
| JPH10288262A (en) | Butterfly valve made of plastics | |
| US2763215A (en) | Torque converters | |
| JP3026245B2 (en) | Center type butterfly valve body and processing method thereof | |
| JPS6135372Y2 (en) | ||
| JPS5856089Y2 (en) | Holder for soft molding | |
| JPS6119857Y2 (en) | ||
| JPS64315Y2 (en) | ||
| JPS621786Y2 (en) | ||
| JPS6131778Y2 (en) | ||
| JP3218162B2 (en) | Butterfly valve centering device | |
| JPS6224664B2 (en) | ||
| JP3045939B2 (en) | Butterfly valve and method of manufacturing the same | |
| JPH0729346Y2 (en) | Butterfly valve | |
| JPH0433363Y2 (en) | ||
| JPS5882071A (en) | Manufacture of gear case for starter | |
| JPH0463941B2 (en) | ||
| JP3272181B2 (en) | Center type butterfly valve | |
| JPS6031862Y2 (en) | Rotary tool for counterbore | |
| JP2505510Y2 (en) | Valve stem support system | |
| JP2507168Y2 (en) | Central butterfly valve disc | |
| JPS6217633Y2 (en) | ||
| JP3565633B2 (en) | Segment for tunnel | |
| JPH08326565A (en) | Valve shaft and manufacture thereof |