WO2013011623A1 - 電磁比例制御弁 - Google Patents
電磁比例制御弁 Download PDFInfo
- Publication number
- WO2013011623A1 WO2013011623A1 PCT/JP2012/003778 JP2012003778W WO2013011623A1 WO 2013011623 A1 WO2013011623 A1 WO 2013011623A1 JP 2012003778 W JP2012003778 W JP 2012003778W WO 2013011623 A1 WO2013011623 A1 WO 2013011623A1
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- WIPO (PCT)
- Prior art keywords
- spool
- electromagnetic proportional
- stopper
- movable part
- control valve
- Prior art date
Links
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 230000008602 contraction Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
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- 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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
- F16K31/0613—Sliding valves with cylindrical slides
-
- 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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- 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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
- F16K31/0679—Electromagnet aspects, e.g. electric supply therefor with more than one energising coil
-
- 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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0686—Braking, pressure equilibration, shock absorbing
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
Definitions
- the inside of the spool hole 106 provided in the valve main body 102 is
- the electromagnetic proportional solenoid 103 is driven as shown in (b) 105 from the neutral position in the standby state of the spool 105 which is a movable part moving in the direction
- the driving force generated by the electromagnetic proportional solenoid 103 and the spool return spring 104 are driven.
- the spool 105 moves in the driving direction V so that the spring force is balanced.
- the opening amount of the pump port P and the output port A is controlled, and the flow rate flowing from the pump port P to the output port A is controlled according to the applied current.
- the output port A communicates with the tank port T.
- the control pressure generated by the electromagnetic proportional pressure reducing valve that controls the pressure according to the applied current is used as the pilot pressure in the spring chamber of the main spool.
- the main spool is driven to a position where the force due to the pilot pressure is balanced with the spring force of the opposing spool return spring. In this way, the main spool is driven in the axial direction, whereby the opening amount of the oil passage is controlled and the flow rate is controlled according to the applied current.
- FIG. 1 is a drawing showing a spool portion of an electromagnetic proportional control valve according to a first embodiment of the present invention.
- (A) is a sectional view in a standby state, and (b) is in an operating state (the spool is in a stroke end state).
- FIG. 2 is a drawing showing a spool portion of an electromagnetic proportional control valve according to a second embodiment of the present invention.
- (A) 2 is a sectional view in a standby state, and (b) is in an operating state (the spool is in a stroke end state).
- FIG. 3A and 3B are drawings showing a spool portion of an electromagnetic proportional control valve according to a third embodiment of the present invention, wherein FIG.
- FIG. 3A is a sectional view in a standby state
- FIG. 3B is an operating state (the spool is in a stroke end state).
- FIG. 4A and 4B are diagrams showing a drive portion of an electromagnetic proportional control valve according to a fourth embodiment of the present invention, wherein FIG. 4A is a sectional view in a standby state, and FIG. FIG. FIG. 5 is a drawing showing the relationship between solenoid driving force and spool stroke in the present invention.
- FIG. 6 is a diagram showing the relationship between the applied current and driving force of the electromagnetic proportional control valve.
- 7A and 7B are drawings showing a spool portion of an electromagnetic proportional control valve according to a conventional first example, wherein FIG.
- the electromagnetic proportional control valve 21 of the second embodiment shown in FIGS. 2 (a) and 2 (b) is provided with a mechanical stopper 31 and a stopper biasing force on a spool 25 that moves in an axial direction within a spool hole 26 provided in the valve body 22.
- This is an embodiment of a one-side drive system in which a spring 32 is provided.
- symbol which added "20" is attached
- the electromagnetic proportional control valve 41 of the third embodiment shown in FIGS. 3 (a) and 3 (b) is a double-sided drive system in which electromagnetic proportional solenoids 43 are provided on both (left and right sides) of the valve body 42.
- symbol which added "40" is attached
- the pump port P is provided in the center of the valve body 42, the first output port A and the second output port B are provided on both outer sides thereof, and the tank port T is provided on the outer sides thereof. .
- the pump port P and the first output port A or the second output port B communicate with each other by controlling one of the electromagnetic proportional solenoids 43 provided on both sides.
- the flow rate between the ports is controlled by the opening amounts of notches 45a and 45b formed in the spool 45.
- the spool 45 can vibrate in the axial direction together with the return spring seat 50 and the stopper 51 by the expansion and contraction of the stopper biasing spring 52.
- the spool 45 is kept in a slightly vibrated state by the current dither. In the drawing, the state where the stopper 51 is separated from the stopper locking portion 48 is exaggerated.
- the movable iron core 63d and the drive member 63a can vibrate in the axial direction by the expansion and contraction of the stopper biasing spring 72. For this reason, the spool 65 as well as the movable iron core 63d and the drive member 63a are kept in a slightly vibrated state by the current dither. In the drawing, the state where the stopper 71 is separated from the stopper locking portion 68 is exaggerated.
- the spool 5 does not operate until the position of the mounting load (initial load) F0 of the spool return spring 4.
- the stroke of the spool 5 changes with respect to the solenoid driving force with an inclination (1 / Ka) corresponding to the spring constant Ka of the spool return spring 4.
- the spools 5, 25, 45, 65 are also in a state where the spools 5, 25, 45, 65 are located at the stroke ends. Is maintained by the stopper biasing springs 12, 32, 52, 72 to be slightly vibrated by current dither.
- coil springs are employed as the stopper urging springs 12, 32, 52, and 72 that are elastic members.
- the elastic members are not limited to coil springs, and are, for example, disc springs or other members having a spring effect. It may be present and is not limited to the above embodiment.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
また、前記電磁比例制御弁は、前記駆動手段内に前記メカストッパとストッパ付勢バネとを備えていてもよい。このように構成すれば、駆動手段内にメカストッパとストッパ付勢バネとが設けられるので、駆動部材のストローク端付近でのヒステリシス低減と、可動部品の動作不良を抑止することができる。
Ka:スプール復帰バネのバネ定数、
Kb:ストッパ付勢バネのバネ定数、
X1:中立位置からストッパまでのスプールストローク、
X2:ソレノイド定格電流印加時のスプールストローク、
F0:スプール復帰バネの取付荷重、
F1=F0+Ka・X1:ストッパ当接時のスプール復帰バネ荷重、
F2:ストッパ付勢バネの取付荷重、
F3:ソレノイド定格電流印加時のソレノイド駆動力、
ΔF:電流ディザによるソレノイド駆動力の振幅、
ΔX:駆動力の振幅によるスプールストロークの振幅、
である。
2 弁本体
3 電磁比例ソレノイド(駆動手段)
3a 駆動部材
4 スプール復帰バネ(復帰バネ)
5 スプール(可動部品)
6 スプール孔(摺動孔)
7 閉鎖部材
8 ストッパ係止部
11 メカストッパ
12 ストッパ付勢バネ
21 電磁比例制御弁
22 弁本体
23 電磁比例ソレノイド(駆動手段)
24 スプール復帰バネ(復帰バネ)
25 スプール(可動部品)
26 スプール孔(摺動孔)
28 ストッパ係止部
31 メカストッパ
32 ストッパ付勢バネ
33 ツバ部
41 電磁比例制御弁
42 弁本体
43 電磁比例ソレノイド(駆動手段)
44 スプール復帰バネ(復帰バネ)
45 スプール(可動部品)
46 スプール孔(摺動孔)
48 ストッパ係止部
49 復帰バネ係止部
50 復帰バネ座
51 メカストッパ
52 ストッパ付勢バネ
61 電磁比例制御弁
63 電磁比例ソレノイド(駆動手段)
65 スプール(可動部品)
71 メカストッパ
72 ストッパ付勢バネ
P ポンプポート
A 出力ポート
B 出力ポート
T タンクポート
V 駆動方向
Claims (7)
- 印加電流によって駆動する駆動部材を有する駆動手段と、前記駆動部材によって可動する可動部品と、その内部に前記可動部品が可動する摺動孔を有する弁本体と、前記可動部品を前記駆動部材の駆動方向と逆方向に付勢する復帰バネとを備え、前記駆動手段への印加電流を電流ディザで微振動させるように構成した電磁比例制御弁であって、
前記駆動部材又は前記可動部品の変位を制限するメカストッパを備え、
前記メカストッパは、前記駆動部材又は前記可動部品がメカストッパに当接した状態において前記電流ディザにより前記駆動部材又は前記可動部品を振動可能にさせる弾性部材を有していることを特徴とする電磁比例制御弁。 - 前記弾性部材は、前記駆動部材の駆動方向と逆方向の付勢力を作用させるストッパ付勢バネで構成されている請求項1に記載の電磁比例制御弁。
- 前記ストッパ付勢バネのバネ定数と取付荷重は、電流ディザにより前記駆動部材又は前記可動部品の振動振幅が確保できるように設定されている請求項2に記載の電磁比例制御弁。
- 前記電磁比例制御弁は、前記可動部品の片側端部に前記駆動手段を備えた片側駆動方式で構成され、前記可動部品一端部と前記弁本体との間に、前記メカストッパとストッパ付勢バネとを備えている請求項2又は3に記載の電磁比例制御弁。
- 前記電磁比例制御弁は、前記可動部品の両端部に前記駆動手段を備えた両側駆動方式で構成され、
前記可動部品の両端部と前記弁本体との間に、前記メカストッパとストッパ付勢バネとを備えている請求項2又は3に記載の電磁比例制御弁。 - 前記電磁比例制御弁は、前記駆動手段内に前記メカストッパとストッパ付勢バネとを備えている請求項2又は3に記載の電磁比例制御弁。
- 電磁比例減圧弁と、該電磁比例減圧弁で減圧したパイロット圧力で駆動する主可動部品と、その内部に前記主可動部品が可動する摺動孔を有する弁本体と、前記主可動部品を前記パイロット圧力が作用する方向と逆方向に付勢する復帰バネとを備え、前記電磁比例減圧弁への印加電流を電流ディザで微振動させるように構成したパイロット型電磁比例制御弁であって、
前記主可動部品の変位を制限するメカストッパを備え、
前記メカストッパは、前記主可動部品がメカストッパに当接した状態において前記電流ディザにより前記主可動部品を振動可能にさせる弾性部材を有していることを特徴とするパイロット型電磁比例制御弁。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280030188.3A CN103608616B (zh) | 2011-07-15 | 2012-06-11 | 电磁比例控制阀 |
US14/130,176 US9388912B2 (en) | 2011-07-15 | 2012-06-11 | Proportional solenoid control valve |
EP12815571.0A EP2733398B1 (en) | 2011-07-15 | 2012-06-11 | Proportional control solenoid valve |
KR1020147001680A KR101552977B1 (ko) | 2011-07-15 | 2012-06-11 | 전자 비례 제어 밸브 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2011-156430 | 2011-07-15 | ||
JP2011156430A JP5779019B2 (ja) | 2011-07-15 | 2011-07-15 | 電磁比例制御弁 |
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WO2013011623A1 true WO2013011623A1 (ja) | 2013-01-24 |
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PCT/JP2012/003778 WO2013011623A1 (ja) | 2011-07-15 | 2012-06-11 | 電磁比例制御弁 |
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US (1) | US9388912B2 (ja) |
EP (1) | EP2733398B1 (ja) |
JP (1) | JP5779019B2 (ja) |
KR (1) | KR101552977B1 (ja) |
CN (1) | CN103608616B (ja) |
WO (1) | WO2013011623A1 (ja) |
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JP7430998B2 (ja) * | 2019-09-04 | 2024-02-14 | ナブテスコ株式会社 | 圧力調整弁および建設機械 |
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- 2012-06-11 US US14/130,176 patent/US9388912B2/en active Active
- 2012-06-11 WO PCT/JP2012/003778 patent/WO2013011623A1/ja active Application Filing
- 2012-06-11 CN CN201280030188.3A patent/CN103608616B/zh active Active
- 2012-06-11 EP EP12815571.0A patent/EP2733398B1/en active Active
- 2012-06-11 KR KR1020147001680A patent/KR101552977B1/ko active Active
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JPH0314381U (ja) * | 1989-06-27 | 1991-02-13 | ||
JPH05143166A (ja) * | 1991-11-21 | 1993-06-11 | Matsushita Electric Ind Co Ltd | 流量制御弁 |
JPH09152055A (ja) * | 1995-11-30 | 1997-06-10 | Ckd Corp | 電磁比例制御弁の制御方法及び電磁比例制御弁 |
JPH11132355A (ja) * | 1997-08-25 | 1999-05-21 | Nippon Soken Inc | 電磁弁 |
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Publication number | Publication date |
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EP2733398B1 (en) | 2017-07-26 |
CN103608616A (zh) | 2014-02-26 |
CN103608616B (zh) | 2015-07-01 |
JP2013024254A (ja) | 2013-02-04 |
JP5779019B2 (ja) | 2015-09-16 |
US9388912B2 (en) | 2016-07-12 |
EP2733398A4 (en) | 2015-03-18 |
KR101552977B1 (ko) | 2015-09-30 |
US20140209826A1 (en) | 2014-07-31 |
EP2733398A1 (en) | 2014-05-21 |
KR20140024959A (ko) | 2014-03-03 |
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