CN103291678A - Motor-driven plug-in mounting flow servo valve - Google Patents
Motor-driven plug-in mounting flow servo valve Download PDFInfo
- Publication number
- CN103291678A CN103291678A CN2012100560466A CN201210056046A CN103291678A CN 103291678 A CN103291678 A CN 103291678A CN 2012100560466 A CN2012100560466 A CN 2012100560466A CN 201210056046 A CN201210056046 A CN 201210056046A CN 103291678 A CN103291678 A CN 103291678A
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- motor
- gland
- mounting flow
- driven plug
- valve core
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- 210000004907 gland Anatomy 0.000 claims abstract description 43
- 239000012530 fluid Substances 0.000 claims abstract description 33
- 238000010992 reflux Methods 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The invention provides a motor-driven plug-in mounting flow servo valve which is applicable to the hydraulic field, and comprises a valve body, a cone valve element, a control valve element, a gland, a spring, a motor, a nut and a connecting device, wherein a fluid inlet and a fluid outlet are formed in the valve body; a step is arranged on the control valve element; aperture passages are formed in the cone valve element; a fluid reflux inlet is formed in the gland; the nut is fixedly connected with the gland; a thread is formed at one end of the control valve element; and one end of the thread passes through the gland and is meshed with the nut, and is connected with a motor output end through the connecting device. The motor-driven plug-in mounting flow servo valve has a simple structure, and the flow of a single-stage valve can be high. Through the addition of flow detection and the position detection and uninterrupted control to the corner and the direction of the motor, the functions of a proportioning valve and a servovalve can be finished, so that the purpose that one valve is multi-purpose is achieved. The invention further provides another motor-driven plug-in mounting flow servo valve which adopts the motor to directly drive the cone valve element, and is full-electric.
Description
Technical field
The present invention relates to Hydraulic Field, relate in particular to motor-driven plug-in mounting flow servovalve.
Background technique
In the fluid transmission, plug-in mounting flow servovalve has advantages such as simple in structure, that through-current capacity is big, therefore obtains extensive use in hydraulic system, the hydraulic control of especially heavy main frame, more too busy to get away plug-in mounting flow servovalve.Traditional plug-in mounting flow servovalve comprises servovalve and servocylinder, and it is that the piston rod of servocylinder is made poppet valve core, and the cone valve opening is controlled in the displacement of control poppet valve core, thus the control output flow.This plug-in mounting flow servovalve complex structure, need realize many closed loop controls at poppet valve core and two position transducers of servo spool installation, in order to satisfy the requirement of servovalve hydraulic oil, also to dispose independently high filtering precision oil sources, the control system complexity, debugging and maintenance are all cumbersome, and price is also expensive.
Summary of the invention
In order to address the above problem, it is simpler to the purpose of this invention is to provide a kind of control system, debugging and safeguard all more conveniently, and price is not expensive motor-driven plug-in mounting flow servovalve also.
In order to achieve the above object, the present invention adopts following technological scheme:
A kind of motor-driven plug-in mounting flow servovalve, comprise valve body, poppet valve core, the control spool, gland and spring, valve body is provided with fluid inlet and fluid output, poppet valve core is arranged in the valve body, the control spool is arranged in the poppet valve core, spring one end is connected with poppet valve core top, the other end links to each other with gland, gland links to each other with valve seal, and described control spool has step, and described poppet valve core has the duct, match with step in this duct, described gland has the fluid refluxing opening, and this motor-driven plug-in mounting flow servovalve also comprises motor, nut and connection set, nut is fixedlyed connected with gland, one end of described control spool has screw thread, this threaded end passes gland and nut engagement, and is connected with motor output end by connection set, and this threaded end can rotate in connection set and axial linear movement.
In this motor-driven plug-in mounting flow servovalve, described motor is direct current generator, AC motor, stepper motor or actuating motor.
In this motor-driven plug-in mounting flow servovalve, the screw thread of described control spool is single screw thread or multiple thread.
In this motor-driven plug-in mounting flow servovalve, described connection set is to connect sliding sleeve or slip coupling.
In this motor-driven plug-in mounting flow servovalve, the fluid that this motor-driven plug-in mounting flow servovalve is suitable for is gas or liquid.
In this motor-driven plug-in mounting flow servovalve, described valve body has at least two ducts.
In this motor-driven plug-in mounting flow servovalve, described nut and gland are one.
In this motor-driven plug-in mounting flow servovalve, also comprise the motor bearing, the motor bearing is arranged on the gland, and motor is arranged on the motor bearing.
The present invention also provides another kind of motor-driven plug-in mounting flow servovalve, comprise valve body, poppet valve core, gland and spring, valve body is provided with fluid inlet and fluid output, poppet valve core is arranged in the valve body, spring one end is connected with poppet valve core top, the other end links to each other with gland, gland links to each other with valve seal, this motor-driven plug-in mounting flow servovalve also comprises motor, nut and connection set, nut is connected with gland, and an end of described poppet valve core has screw thread, and this threaded end passes gland and nut engagement, and be connected with motor output end by connection set, this threaded end can rotate in connection set and axial linear movement.
Advantage of the present invention and beneficial effect:
Because the very simple and motor low price of Electric Machine Control is so the motor-driven plug-in mounting flow servovalve among the present invention is very practical.Again owing to adopt the internal control mode, and the control spool is very little, adopts very little motor to control, therefore need not independent external control oil sources, the one valve flow just can be done very greatly, need not secondary or three grades of amplifications, this has just simplified this plug-in mounting flow servovalve structure greatly, has also reduced cost.Again because only need direction and the corner of simple control motor, aperture with regard to the outlet of controllable flow body, realize proportional valve control, if add closed-loop adjustment, then can work as high-precision flow servovalve uses, if add displacement detecting, then realization speed is simultaneously controlled and positioning control, has therefore realized the purpose of multi-purpose valve.
Description of drawings
Fig. 1 is a kind of structural representation of a kind of motor-driven plug-in mounting flow servovalve provided by the invention;
Fig. 2 is the another kind of structural representation of a kind of motor-driven plug-in mounting flow servovalve provided by the invention;
Fig. 3 is the structural representation of the motor-driven plug-in mounting flow of another kind provided by the invention servovalve.
Description of reference numerals:
1 ... valve body;
2 ... poppet valve core;
3 ... gland;
4 ... the control spool;
5 ... the motor bearing;
6 ... slide connector;
7 ... motor;
8 ... nut;
9 ... spring;
P ... fluid inlet;
B ... fluid output;
P1 ... the duct;
O1 ... the duct;
O ... the fluid refluxing opening.
Embodiment
In order to make purpose of the present invention, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
Please refer to Fig. 1, in one embodiment of the invention, described motor-driven plug-in mounting flow servovalve comprises valve body 1, poppet valve core 2, the gland 3 that has fluid refluxing opening O, control spool 4, motor bearing 5, connection set, be slip coupling 6, motor 7, nut 8, spring 9.Fluid inlet P, fluid output B and corresponding duct are arranged on the valve body 1, control has step on the spool 4 and is loaded in the inner chamber of poppet valve core 2, ducts such as duct P1 and O1 are arranged on the poppet valve core 2, the step of control spool 4 matches with the duct on the poppet valve core 2, one end of control spool 4 has screw thread, this threaded end passes gland 3 and nut 8 engagements, and is connected with the output terminal of motor 7 by slip coupling 6, and this threaded end can rotate and axial linear movement in slip coupling 6.Spring 9 is arranged on the top of poppet valve core 2, and the one end links to each other with gland 3, and gland 3 links to each other with valve body 1 sealing, and motor bearing 5 is arranged on the gland 3, and motor 7 is arranged on the motor bearing 5.
The step of control spool 4 is divided into epicoele and cavity of resorption with the inner chamber of poppet valve core 2.Under off working state, duct P1 and duct O1 are co-located in the step of control spool 4, fluid, flows in the O1 of duct in duct P1 guides to the step of control spool 4 from the P mouth again, guides to gland 3 through duct O1, and flow out from fluid refluxing opening O, at this moment, fluid flows into from the P mouth, through duct P1, control spool 4, duct O1, flow out from the O mouth at last, formed a complete fluid passage.In working order down, motor 7 rotates, and controls spools 4 by slip coupling 6 drives and rotates, simultaneously because spool 4 generation axial linear movement are controlled in the effect of nut 8.When controlling spool 4 when axial direction upwards produces displacement, the step of control spool 4 is introduced poppet valve core 2 cavity of resorptions with duct P1, duct O1 is introduced poppet valve core 2 epicoeles, the aforesaid fluid path is destroyed, and poppet valve core 2 stress balances are destroyed, moves on the poppet valve core 2, till restoring balance, at this moment, poppet valve core 2 has been finished the tracking to control spool 4, and namely P mouth and B mouth aperture are to the tracking of motor corner.Control spool 4 is when axial direction produces displacement downwards, in like manner.As long as accurately control rotating speed of motor and corner just can accurately be controlled aperture and the response time of P mouth and B mouth, thereby control flow output accurately, completed percentage control or servocontrol.
In the present embodiment, described motor can be various motors, comprises direct current, interchange, stepping, various motors such as servo.If the employing stepper motor, then this motor driving plug-in mounting flow servovalve is exactly digital plug-in mounting flow servovalve.
In the present embodiment, described control spool 4 can be three-way valve or four-way valve.
In the present embodiment, the screw thread of described control spool 4 can be single screw thread or multiple thread.
In the present embodiment, described connection set is slip coupling, and it also can be to connect sliding sleeve, can guarantee to control spool 4 threaded ends rotate and the connection set of axial linear movement all applicable to the present invention.
In the present embodiment, the suitable fluid of this motor-driven plug-in mounting flow servovalve is gas or liquid.
In the present embodiment, described valve body 1 has at least two ducts.
In the present embodiment,, described nut 8 and gland 3 are two independently parts, also the two can be made of one.
Please refer to Fig. 2, the invention provides another kind of embodiment, this embodiment's content and previous embodiment are basic identical.Difference is: when valve body 1 is when lengthening valve body, motor 7 can be set directly on the valve body 1, save motor bearing 5, provide cost savings.
Please refer to Fig. 3, the present invention also provides another kind of embodiment, and this embodiment's content and previous embodiment are basic identical.Difference is: when motor-driven plug-in mounting flow servovalve is small-sized plug-in mounting flow servovalve, when the power on the poppet valve core 2 of acting on was little, this motor-driven plug-in mounting flow servovalve can adopt motor 7 directly to drive the modes of poppet valve cores 2.This moment, motor-driven plug-in mounting flow servovalve comprised valve body 1, poppet valve core 2, gland 3, motor bearing 5, and connection set, namely slip coupling 6, motor 7, nut 8, spring 9.Fluid inlet P, fluid output B and corresponding duct are arranged on the valve body 1, one end of poppet valve core 2 has screw thread, this threaded end passes gland 3 and nut 8 engagements, and be connected with the output terminal of motor 7 by slip coupling 6, this threaded end can rotate and axial linear movement in slip coupling 6.Spring 9 is arranged on the top of poppet valve core 2, and the one end links to each other with gland 3, and gland 3 links to each other with valve body 1 sealing, and motor bearing 5 is arranged on the gland 3, and motor 7 is arranged on the motor bearing 5.
Under off working state, although poppet valve core 2 is subjected to the pressure of fluid and the elastic force of spring 9, because the effect of the fastening force that nut applies, poppet valve core 2 is tightly pushed down the P mouth, does not allow fluid flow out from the B mouth through the P mouth.In working order, motor 7 rotates, and drives poppet valve cores 2 by slip coupling 6 and rotates, and owing to the effect of nut 8, poppet valve core 2 produces axial linear movement, produces displacement at axis simultaneously, and this moment, the P mouth was opened, and fluid flows out from the B mouth through the P mouth.As long as accurately control rotating speed of motor and corner, just can accurately control aperture and the response time of P mouth and B mouth, thereby controlled flow output accurately, completed percentage control or servocontrol, the plug-in mounting flow servovalve of this moment is exactly pure electronic plug-in mounting flow servovalve.
In the present embodiment, used spring 9 parts in the motor-driven plug-in mounting flow servovalve, it mainly plays a part to eliminate Screw Thread Fit Clearance on nut and the poppet valve core 2, but also can not use this parts, reaches the purpose of saving cost.
The above is preferred embodiment of the present invention only, is not to limit practical range of the present invention; If do not break away from the spirit and scope of the present invention, the present invention is made amendment or is equal to replacement, all should be encompassed in the middle of the protection domain of claim of the present invention.
Claims (9)
1. motor-driven plug-in mounting flow servovalve, it is characterized in that, comprise valve body, poppet valve core, the control spool, gland and spring, valve body is provided with fluid inlet and fluid output, poppet valve core is arranged in the valve body, the control spool is arranged in the poppet valve core, spring one end is connected with poppet valve core top, the other end links to each other with gland, gland links to each other with valve seal, described control spool has step, described poppet valve core has the duct, matches with step in this duct, and described gland has the fluid refluxing opening, this motor-driven plug-in mounting flow servovalve also comprises motor, nut and connection set, nut is fixedlyed connected with gland, and an end of described control spool has screw thread, and this threaded end passes gland and nut engagement, and be connected with motor output end by connection set, this threaded end can rotate in connection set and axial linear movement.
2. according to the described motor-driven plug-in mounting flow servovalve of claim 1, it is characterized in that described motor is direct current generator, AC motor, stepper motor or actuating motor.
3. according to the described motor-driven plug-in mounting flow servovalve of claim 1, the screw thread that it is characterized in that described control spool is single screw thread or multiple thread.
4. according to the described motor-driven plug-in mounting flow servovalve of claim 1, it is characterized in that described connection set is to connect sliding sleeve or slip coupling.
5. according to the described motor-driven plug-in mounting flow servovalve of claim 1, it is characterized in that the fluid that this motor-driven plug-in mounting flow servovalve is suitable for is gas or liquid.
6. according to the described motor-driven plug-in mounting flow servovalve of claim 1, it is characterized in that described valve body has at least two ducts.
7. according to the described motor-driven plug-in mounting flow servovalve of claim 1, it is characterized in that described nut and gland are one.
8. according to each described motor-driven plug-in mounting flow servovalve of claim 1 to 7, it is characterized in that also comprising the motor bearing, the motor bearing is arranged on the gland, and motor is arranged on the motor bearing.
9. motor-driven plug-in mounting flow servovalve, it is characterized in that, comprise valve body, poppet valve core, gland and spring, valve body is provided with fluid inlet and fluid output, poppet valve core is arranged in the valve body, spring one end is connected with poppet valve core top, the other end links to each other with gland, gland links to each other with valve seal, and this motor-driven plug-in mounting flow servovalve also comprises motor, nut and connection set, nut is connected with gland, one end of described poppet valve core has screw thread, this threaded end passes gland and nut engagement, and is connected with motor output end by connection set, and this threaded end can rotate in connection set and axial linear movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210056046.6A CN103291678B (en) | 2012-03-05 | 2012-03-05 | Motor-driven plug-in mounting serving volume valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210056046.6A CN103291678B (en) | 2012-03-05 | 2012-03-05 | Motor-driven plug-in mounting serving volume valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103291678A true CN103291678A (en) | 2013-09-11 |
| CN103291678B CN103291678B (en) | 2016-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210056046.6A Active CN103291678B (en) | 2012-03-05 | 2012-03-05 | Motor-driven plug-in mounting serving volume valve |
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| Country | Link |
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| CN (1) | CN103291678B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452931A (en) * | 2012-06-05 | 2013-12-18 | 杨世祥 | Inserting servo valve driven by motor |
| CN111494734A (en) * | 2018-02-05 | 2020-08-07 | 赵明洁 | Clinical intelligent thoracic drainage device |
| CN113162313A (en) * | 2021-04-15 | 2021-07-23 | 浙大城市学院 | Two-dimensional motor and servo valve |
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|---|---|---|---|---|
| CN85102790A (en) * | 1985-04-01 | 1986-08-20 | 中国船舶工业总公司第七研究院第七零四研究所 | Digital pressure valve |
| CH660512A5 (en) * | 1982-09-23 | 1987-04-30 | Sig Schweiz Industrieges | Hydraulic control element |
| CN2050897U (en) * | 1989-06-17 | 1990-01-10 | 胡延春 | Three-way slave logical valve |
| CN2101142U (en) * | 1991-01-16 | 1992-04-08 | 上海第二工业大学 | Digital proportion pressure valve |
| CN2503286Y (en) * | 2001-09-07 | 2002-07-31 | 宜兴市四通塑粉有限公司 | Flow control magnetic valve |
| CN101008413A (en) * | 2007-01-12 | 2007-08-01 | 路文忠 | Electrohydraulic servo oil cylinder and numerical control machine tool using same |
| WO2012023342A1 (en) * | 2010-08-20 | 2012-02-23 | シーケーディ株式会社 | Fluid control device |
| CN202468510U (en) * | 2012-03-05 | 2012-10-03 | 杨世祥 | Plug-in flow servo valve driven by motor |
-
2012
- 2012-03-05 CN CN201210056046.6A patent/CN103291678B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH660512A5 (en) * | 1982-09-23 | 1987-04-30 | Sig Schweiz Industrieges | Hydraulic control element |
| CN85102790A (en) * | 1985-04-01 | 1986-08-20 | 中国船舶工业总公司第七研究院第七零四研究所 | Digital pressure valve |
| CN2050897U (en) * | 1989-06-17 | 1990-01-10 | 胡延春 | Three-way slave logical valve |
| CN2101142U (en) * | 1991-01-16 | 1992-04-08 | 上海第二工业大学 | Digital proportion pressure valve |
| CN2503286Y (en) * | 2001-09-07 | 2002-07-31 | 宜兴市四通塑粉有限公司 | Flow control magnetic valve |
| CN101008413A (en) * | 2007-01-12 | 2007-08-01 | 路文忠 | Electrohydraulic servo oil cylinder and numerical control machine tool using same |
| WO2012023342A1 (en) * | 2010-08-20 | 2012-02-23 | シーケーディ株式会社 | Fluid control device |
| CN202468510U (en) * | 2012-03-05 | 2012-10-03 | 杨世祥 | Plug-in flow servo valve driven by motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452931A (en) * | 2012-06-05 | 2013-12-18 | 杨世祥 | Inserting servo valve driven by motor |
| CN103452931B (en) * | 2012-06-05 | 2016-08-03 | 杨世祥 | A kind of motor-driven plug-in mounting servo valve |
| CN111494734A (en) * | 2018-02-05 | 2020-08-07 | 赵明洁 | Clinical intelligent thoracic drainage device |
| CN113162313A (en) * | 2021-04-15 | 2021-07-23 | 浙大城市学院 | Two-dimensional motor and servo valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103291678B (en) | 2016-12-14 |
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Effective date of registration: 20180913 Address after: 100054 2B2906 room 88, East Street, Fengtai District, Beijing. Patentee after: AEMETEC Co.,Ltd. Address before: 100054 room 2906, block B, Peng run Wen Yuan, 88 East Street, Fengtai District, Beijing. Co-patentee before: Yang Tao Patentee before: Yang Shixiang Co-patentee before: Yang Fan Co-patentee before: Li Guiying |
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Inventor after: Yang Shixiang Inventor after: Zheng Jirong Inventor after: Yang Tao Inventor after: Yang Fan Inventor after: Li Guiying Inventor before: Yang Shixiang Inventor before: Yang Tao Inventor before: Yang Fan Inventor before: Li Guiying |
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