JPH0313460B2 - - Google Patents
Info
- Publication number
- JPH0313460B2 JPH0313460B2 JP58107642A JP10764283A JPH0313460B2 JP H0313460 B2 JPH0313460 B2 JP H0313460B2 JP 58107642 A JP58107642 A JP 58107642A JP 10764283 A JP10764283 A JP 10764283A JP H0313460 B2 JPH0313460 B2 JP H0313460B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- coil spring
- valve body
- stopper
- pin
- 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 - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 238000013459 approach Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005057 refrigeration Methods 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Magnetically Actuated Valves (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、冷凍サイクルの膨張弁等として用い
られるステツピングモータバルブに関するもので
あり、弁閉止時において弁体の動作を機械的に停
止させることにより該弁体の弁座等に対する喰い
付きを阻止することを意図する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a stepping motor valve used as an expansion valve in a refrigeration cycle, etc., which mechanically stops the operation of the valve body when the valve is closed. This is intended to prevent the valve body from biting into the valve seat or the like.
弁閉止時において弁体の動作を機械的に停止さ
せることにより該弁体の弁座に対する喰い付きを
阻止するようにしたモータバルブとして、第３図
に示されるものが公知である（実開昭58−61972
号）。
The motor valve shown in FIG. 3 is known as a motor valve that prevents the valve body from biting against the valve seat by mechanically stopping the operation of the valve body when the valve is closed. 58−61972
issue).
これにあつては、弁本体ａの一部に弁座ｂを設
け、ニードル弁ｃを弁軸ｄの先端に圧縮ばねｅを
介して可動的に位置ぎめし、弁軸ｄの一部にピン
ｆを固定するとともにこのピンｆの動きを制限す
るストツパｇを弁本体ａ内に設け、弁軸ｄの後部
にはモータの回転子ｈ、雄ねじｉを一体的に形成
して弁本体ａ内に収納し、弁軸ｄの中央部を軸受
メタルｊにより支え、雄ねじｉには雌ねじｋをは
めあわせ、ケースｌ外部の回転子と対応する位置
にモータの固定コイルｍを設けている。 In this case, a valve seat b is provided in a part of the valve body a, a needle valve c is movably positioned at the tip of the valve shaft d via a compression spring e, and a pin is attached to a part of the valve shaft d. A stopper g is provided in the valve body a for fixing the pin f and restricting the movement of the pin f, and a rotor h of the motor and a male thread i are integrally formed at the rear of the valve shaft d, and the stopper g is installed in the valve body a. The central part of the valve shaft d is supported by a bearing metal j, the male thread i is fitted with a female thread k, and a fixed coil m of the motor is provided outside the case l at a position corresponding to the rotor.
しかし、この構造では、ピンｆとストツパｇと
の間に衝撃音が発生し、停止位置から１ピツチ回
転後においては該ピンｆはストツパｇから外れて
いる必要があるが、該ピンｆを上下のストツパｇ
から１ピツチ回転後において双方共に衝合しない
ように構成するには各部品の寸法精度、各々の組
み込み精度およびねじ相互のガタを厳密におさえ
なければならず、設計上及び製造上においてかな
りな困難が伴つている。 However, with this structure, an impact sound is generated between the pin f and the stopper g, and the pin f needs to be removed from the stopper g after one rotation from the stop position. Stoppa g
In order to configure the structure so that both parts do not collide after one pitch rotation, it is necessary to strictly control the dimensional accuracy of each part, the assembly accuracy of each part, and the play between the screws, which is a considerable difficulty in design and manufacturing. is accompanied by
本発明は上記した点に着目し、衝撃音が小さ
く、製造が容易な弁閉時の喰い付き防止用ストツ
パ機構を有するステツピングモータバルブを提供
するものである。
The present invention has focused on the above-mentioned points, and provides a stepping motor valve having a stopper mechanism for preventing seizing when the valve is closed, which generates little impact noise and is easy to manufacture.
上記の目的を達成するため、本発明において
は、弁本体の一次口と二次口間に設けた弁シート
に接離する弁体を、弁本体に対して回動自在に支
持されるモータバルブ用磁石の支持金具に螺合さ
せ、該弁体と同心的にコイルばねを固定して設け
ると共に終端感知用の回動ピンを設けてその放射
片をコイルばねの螺旋部を摺動させ、支持金具の
回動時において該回動ピンを共に回動させつつ該
コイルばねに沿つて上下動させ、弁閉止時におい
て該放射片を該コイルばねの端部に設けたストツ
パに係合させることを特徴とする。
In order to achieve the above object, in the present invention, a motor valve rotatably supported with respect to the valve body includes a valve body that approaches and separates from a valve seat provided between a primary port and a secondary port of a valve body. A coil spring is fixed and fixed concentrically with the valve body, and a rotating pin for end detection is provided, and its radiating piece is slid on the spiral part of the coil spring to support it. When the fitting is rotated, the pivot pin is rotated together and moved up and down along the coil spring, and when the valve is closed, the radiation piece is engaged with a stopper provided at the end of the coil spring. Features.
第１図に示されるステツピングモータバルブ
V′において、弁本体１には一次口１ａと二次口
１ｂが設けられると共にその間に弁シート２が設
けられ、該弁シート２に接離するニードル弁体３
が本体１の隔壁１ｃの孔１c1により摺動自在に支
持されている。隔壁１ｃ上には筒体４が付設さ
れ、該筒体４に設けた栓体８の角孔８ａに対して
ニードル弁体３の上端における角状係合部３ａが
係入している。
Stepping motor valve shown in Figure 1
At V', the valve body 1 is provided with a primary port 1a and a secondary port 1b, and a valve seat 2 is provided therebetween, and a needle valve body 3 that approaches and separates from the valve seat 2.
is slidably supported by the hole 1c1 of the partition wall 1c of the main body 1. A cylindrical body 4 is attached on the partition wall 1c, and a angular engagement portion 3a at the upper end of the needle valve body 3 is engaged with a square hole 8a of a stopper 8 provided in the cylindrical body 4.
ニードル弁体３の中間部にはねじ部３ｂが設け
られ、これに対してモータ室内Ｒにおいて回動自
在に設けられた磁石６の支持金具６′が螺合して
おり、従つて該磁石６乃至支持金具６′が筒体４
の外部に設けた電磁コイル７に対する電気信号に
より回転変位することにより、ニードル弁体３は
回転することなしに上下動して、弁シート２に対
して接離する。支持金具６′は一側において上記
隔壁１ｃに設けたベアリング９により支持され、
他側においては受け１０を介して栓体８との間に
設けたコイルばね１１により軸方向に加圧して支
持されている。コイルばね１１の両端部には軸方
向のストツパ１１ａ，１１ｂが設けられ、一方の
ストツパ１１ａが栓体８の孔８ｂに係入して回動
が阻止されている。 A threaded portion 3b is provided in the intermediate portion of the needle valve body 3, and a support fitting 6' for a magnet 6 rotatably provided in the motor chamber R is screwed onto this threaded portion 3b. The supporting metal fittings 6' are the cylinder body 4.
By rotating and displacing the electromagnetic coil 7 provided externally by an electric signal, the needle valve body 3 moves up and down without rotating, and approaches and separates from the valve seat 2. The support fitting 6' is supported on one side by a bearing 9 provided on the partition wall 1c,
On the other side, it is axially pressurized and supported by a coil spring 11 provided between it and the stopper 8 via a receiver 10. Axial stoppers 11a and 11b are provided at both ends of the coil spring 11, and one stopper 11a engages in the hole 8b of the stopper 8 to prevent rotation.
ニードル弁体３には開閉終端感知用回動ピン１
２が回動自在に設けられてその放射片１２ａ，１
２ａがコイルばね１１の螺旋部を越えて外方に突
出すると共に該コイルばね１１の外側において支
持金具６′に植設した駆動ピン１３に係合してい
る。 The needle valve body 3 has a rotating pin 1 for detecting the opening/closing end.
2 is rotatably provided and its radiating pieces 12a, 1
2a projects outward beyond the helical portion of the coil spring 11 and engages with a drive pin 13 implanted in the support fitting 6' on the outside of the coil spring 11.
上記構成において、電磁コイル７に対する電気
信号に応じて磁石６が回動することによりニード
ル弁体３が上下動して弁シート２を開閉し、これ
と共に開閉終端感知用回動ピン１２が回動してコ
イルばね１１に沿つて上下動し、一定位置におい
て該ピン１２の放射片１２ａがストツパ１１ａ，
１１ｂに衝合して磁石６乃至支持金具６′の回動
を阻止し、弁体３の動作を一定位置において確実
に停止する。 In the above configuration, when the magnet 6 rotates in response to an electric signal sent to the electromagnetic coil 7, the needle valve body 3 moves up and down to open and close the valve seat 2, and at the same time, the rotation pin 12 for detecting the end of opening and closing rotates. The pin 12 moves up and down along the coil spring 11, and at a certain position, the radiating piece 12a of the pin 12 engages the stopper 11a,
11b to prevent rotation of the magnet 6 to the support metal fitting 6', thereby reliably stopping the operation of the valve body 3 at a certain position.
本発明は上記した如くに、弁本体の一次口と二
次口間に設けた弁シートに接離する弁体を、弁本
体に対して回動自在に支持されるモータバルブ用
磁石の支持金具に螺合させ、該弁体と同心的にコ
イルばねを固定して設けると共に終端感知用の回
動ピンを設けてその放射片をコイルばねの螺旋部
を摺動させ、支持金具の回動時において該回動ピ
ンを共に回動させつつ該コイルばねに沿つて上下
動させ、弁閉止時において該放射片を該コイルば
ねの端部に設けたストツパに係合させるものであ
るから、弁閉時において終端感知用の回動ピンが
衝合するストツパは、コイルばねの端部に形成さ
れていることにより弾性による緩衝作用をを有し
ていて衝撃音が小さく、また弾性によりストツパ
の耐久性に優れ、回動ピンはコイルばねの螺旋部
を案内されて回動且つ上下動するので、回動ピン
の放射片はストツパとの衝合位置から１ピツチ回
転後においては該コイルばねの端部に設けたスト
ツパから確実に離れる構成となつていて、コイル
ばね乃至はストツパを容易に組み付けることがで
きる特長を有する。
As described above, the present invention provides a support metal fitting for a motor valve magnet that rotatably supports a valve body that contacts and separates from a valve seat provided between a primary port and a secondary port of a valve body. A coil spring is fixed and fixed concentrically with the valve body, and a rotation pin for end detection is provided, and its radiating piece slides on the helical part of the coil spring, so that when the support fitting is rotated. The pivot pin is rotated together and moved up and down along the coil spring, and when the valve is closed, the radial piece is engaged with a stopper provided at the end of the coil spring. The stopper against which the rotation pin for end-of-terminal detection collides is formed at the end of the coil spring, so it has a cushioning effect due to its elasticity, which reduces impact noise, and its elasticity increases the durability of the stopper. Since the pivot pin rotates and moves up and down while being guided by the helical part of the coil spring, the radial piece of the pivot pin rotates one pitch from the position where it collides with the stopper, and then the end of the coil spring The coil spring or the stopper can be easily assembled.
第１図は本発明の一実施例についての断面図、
第２図は同上の要部の拡大図、第３図は従来例の
断面図である。
V′……ステツピングモータバルブ、１……弁
本体、１ａ……一次口、１ｂ……二次口、２……
弁シート、３……弁体、１１……コイルばね、１
１ａ，１１ｂ……ストツパ、１２……回動ピン、
１２ａ……放射片。
FIG. 1 is a sectional view of an embodiment of the present invention;
FIG. 2 is an enlarged view of the main parts of the same as above, and FIG. 3 is a sectional view of the conventional example. V'...Stepping motor valve, 1...Valve body, 1a...Primary port, 1b...Secondary port, 2...
Valve seat, 3...Valve body, 11...Coil spring, 1
1a, 11b... Stopper, 12... Rotating pin,
12a... Radiation piece.
Claims (1)
に接離する弁体を、弁本体に対して回動自在に支
持されるモータバルブ用磁石の支持金具に螺合さ
せ、該弁体と同心的にコイルばねを固定して設け
ると共に終端感知用の回動ピンを設けてその放射
片をコイルばねの螺旋部を摺動させ、支持金具の
回動時において該回動ピンを共に回動させつつ該
コイルばねに沿つて上下動させ、弁閉止時におい
て該放射片を該コイルばねの端部に設けたストツ
パに係合させることを特徴とするステツピングモ
ータバルブ。1. A valve body that comes into contact with and separates from a valve seat provided between a primary port and a secondary port of a valve body is screwed into a support fitting of a motor valve magnet that is rotatably supported with respect to the valve body, and A coil spring is fixed and provided concentrically with the body, and a rotation pin for end detection is provided, and its radiating piece is slid on the helical part of the coil spring, so that when the support fitting is rotated, the rotation pin is A stepping motor valve characterized in that the valve is moved up and down along the coil spring while being rotated, and when the valve is closed, the radiating piece is engaged with a stopper provided at an end of the coil spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10764283A JPS608583A (en) | 1983-06-17 | 1983-06-17 | Stepping motor valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10764283A JPS608583A (en) | 1983-06-17 | 1983-06-17 | Stepping motor valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS608583A JPS608583A (en) | 1985-01-17 |
| JPH0313460B2 true JPH0313460B2 (en) | 1991-02-22 |
Family
ID=14464364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10764283A Granted JPS608583A (en) | 1983-06-17 | 1983-06-17 | Stepping motor valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS608583A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003329157A (en) * | 2002-05-15 | 2003-11-19 | Saginomiya Seisakusho Inc | Motor-driven valve |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61180077A (en) * | 1985-02-06 | 1986-08-12 | Saginomiya Seisakusho Inc | Motor-driven control valve |
| JPS61256860A (en) * | 1985-05-08 | 1986-11-14 | Mitsubishi Electric Corp | Picture reader |
| JPH034866Y2 (en) * | 1985-05-15 | 1991-02-07 | ||
| JPH039566Y2 (en) * | 1985-06-28 | 1991-03-11 | ||
| JPH0538303Y2 (en) * | 1986-03-10 | 1993-09-28 | ||
| JPS63190986A (en) * | 1987-02-02 | 1988-08-08 | Tlv Co Ltd | Driving force transfer part for valve pressure setting driving part |
| JP2007032675A (en) * | 2005-07-26 | 2007-02-08 | Fuji Koki Corp | Motor operated valve |
| JP5560403B2 (en) | 2010-09-07 | 2014-07-30 | 株式会社テージーケー | Stepping motor driven control valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5797043A (en) * | 1980-12-08 | 1982-06-16 | Toyota Motor Corp | Idling speed controller for internal combustion engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5861972U (en) * | 1981-10-20 | 1983-04-26 | 太平洋工業株式会社 | proportional control valve |
-
1983
- 1983-06-17 JP JP10764283A patent/JPS608583A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5797043A (en) * | 1980-12-08 | 1982-06-16 | Toyota Motor Corp | Idling speed controller for internal combustion engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003329157A (en) * | 2002-05-15 | 2003-11-19 | Saginomiya Seisakusho Inc | Motor-driven valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS608583A (en) | 1985-01-17 |
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