CN103775662A - Valve rod and valve plug assembly and valve with same - Google Patents

Valve rod and valve plug assembly and valve with same Download PDF

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Publication number
CN103775662A
CN103775662A CN201210424700.4A CN201210424700A CN103775662A CN 103775662 A CN103775662 A CN 103775662A CN 201210424700 A CN201210424700 A CN 201210424700A CN 103775662 A CN103775662 A CN 103775662A
Authority
CN
China
Prior art keywords
described
valve rod
spool
valve
controlling device
Prior art date
Application number
CN201210424700.4A
Other languages
Chinese (zh)
Inventor
肖枭
霍平
Original Assignee
费希尔久安输配设备(成都)有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 费希尔久安输配设备(成都)有限公司 filed Critical 费希尔久安输配设备(成都)有限公司
Priority to CN201210424700.4A priority Critical patent/CN103775662A/en
Publication of CN103775662A publication Critical patent/CN103775662A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/36Valve members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • F16K1/52Means for additional adjustment of the rate of flow

Abstract

The invention relates to a valve rod and valve plug assembly and a valve with the valve rod and valve plug assembly. A valve rod is sleeved with a valve plug in a connection mode, an adjusting device is further arranged on the valve rod, and an elastic component is arranged between the adjusting device and the valve plug; a gap is reserved among the valve plug, the valve rod and the adjusting device so that the valve plug and the valve rod can relatively move, and excellent closing performance of the valve can be achieved.

Description

A kind of valve rod and mangetic core assembly and the valve that comprises this assembly

Technical field

The present invention relates to a kind of valve rod and mangetic core assembly and comprise the valve of this assembly.

Background technique

Valve is the control gear of fluid circuit, and its fundamental function is to connect and the circulation of cutting off pipeline medium, changes the circulation of medium, changes the flow direction of medium, regulates pressure or the flow of medium, to protect the normal operation of equipment of pipeline.Along with the development of modern industry, the needs aspect oil, chemical industry, power station, metallurgy, boats and ships, nuclear energy, aerospace, have higher requirement to valve, and demand also constantly increases.Often only a modern petrochemical plant just needs up to ten thousand valves miscellaneous, because the use amount of valve is large, open and close frequently, this just requires valve to have good its and closes performance, otherwise evaporating, emitting, dripping or leaking of liquid or gas phenomenon easily occurs, can cause quality of product inferior, energy consumption improves, equipment corrosion, and material consumption improves, environmental pollution, even causes the accidents such as stopping production.

At present, most valve is in order to realize closing function, valve rod and spool need to be linked together, make itself and sealing valve port by valve rod band movable valve plug, conventionally between valve rod and spool, adopt screw thread or other modes to be connected and fixed, this Placement can not relatively move spool and valve rod, but in order to make valve reach the good performance of closing, this needs again spool and valve port to keep accurate coordinating.In order to solve this contradiction, in valve production process, generally need to adopt higher machining accuracy and the method for tolerance fit grade.This method effect is general, and cost is higher.

Summary of the invention

The valve that the invention provides a kind of valve rod and mangetic core assembly and comprise this assembly makes valve have the good performance of cutting out on the basis without raising machining accuracy.

On the one hand, the embodiment of the present invention provides a kind of valve rod and mangetic core assembly, and described valve core housing is connected on described valve rod, it is characterized in that, on described valve rod, be also socketed with controlling device, described controlling device is positioned at a side of described spool, between described controlling device and described spool, is provided with elastic element.

Described controlling device or the described spool of above-mentioned valve rod and mangetic core assembly are provided with the first groove, and described elastic element is engaged in described the first groove.

The described controlling device of above-mentioned valve rod and mangetic core assembly is provided with projection, and described projection contacts with spool with described valve rod, and described spool is provided with recess, and described projection is engaged in described recess, described spool and described protruding concentric fit.

The described spool of above-mentioned valve rod and mangetic core assembly is provided with projection, and described projection contacts with controlling device with described valve rod, and described controlling device is provided with recess, and described projection is engaged in described recess, described controlling device and described protruding concentric fit.

Described first groove of above-mentioned valve rod and mangetic core assembly is the continuous annular recess around described valve rod, and the described elastic element being placed in described annular recess is O shape circle.

Described first groove of above-mentioned valve rod and mangetic core assembly is the multiple segment-like grooves around described valve rod.

On the described controlling device of above-mentioned valve rod and mangetic core assembly or described spool, be also provided with multiple grooves, described multiple grooves also coordinate with described elastic element.

The described controlling device of above-mentioned valve rod and mangetic core assembly is fixed on described valve rod by nut, or has screw thread on the inwall of described controlling device, and described controlling device can be screwed and is fixed on valve rod by the screw thread on inwall.

Valve rod of the present invention and mangetic core assembly comprise controlling device, between described controlling device and described spool, be provided with elastic element, between described spool, valve rod and controlling device, leave gap, this can relatively move with valve rod spool, described elastic element can further be adjusted the gap between spool and valve rod, spool is moved with respect to valve rod more flexibly, make valve reach the good performance of closing.

On the other hand, the present invention also provides a kind of above-mentioned valve rod and valve of mangetic core assembly of comprising, described valve also comprises valve port, and one end of described valve rod and described spool are located in described valve port, described valve rod band movable valve plug moves, and described spool can contact valve port and seal described valve port.

The described spool of above-mentioned valve can be piston or flap.

The valve that the embodiment of the present invention provides comprises above-mentioned valve rod and mangetic core assembly, in the time of sealing valve port, described spool can produce relative to moving flexibly relative to valve rod, spool and valve port are fitted completely, this mode to spool and valve port without the need for higher machining accuracy, also reach the good performance of closing simultaneously, also reduced in addition cost.

Accompanying drawing explanation

Fig. 1 is a kind of valve rod of providing of one of embodiment of the present invention and the schematic diagram of mangetic core assembly;

Fig. 2 is the schematic diagram of a kind of controlling device of providing of one of embodiment of the present invention;

Fig. 3 is the another kind of valve rod that provides of one of embodiment of the present invention and the schematic diagram of mangetic core assembly;

Fig. 4 is the schematic diagram of the another kind of controlling device that provides of one of embodiment of the present invention.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment, technological scheme of the present invention is described further.

Embodiment 1

The embodiment of the present invention provides a kind of valve rod and mangetic core assembly, as shown in Figure 1, described valve rod and mangetic core assembly 1 comprise valve rod 10, spool 11, and controlling device 12, described spool 11 and controlling device 12 are socketed on valve rod 10, controlling device 12 is positioned at upside or the downside of spool 11, between described controlling device 12 and spool 11, be also provided with elastic element 13, described controlling device or described spool are provided with the groove for holding elastic element, and described elastic element 13 specifically can be made up of rubber.Because described spool 11 and controlling device 12 are socketed on valve rod 10, therefore described spool 11 all has center hole with controlling device 12, wherein, the internal diameter of described spool and valve rod contacting part office is slightly larger than the external diameter of valve rod, makes the contact segment of spool and valve rod have radial clearance; The elastic element 13 being located between spool and controlling device can make the contact segment of described spool and controlling device have axial clearance, and described radial clearance and axial clearance can make described spool produce and relatively move with respect to valve rod.

In the time that described controlling device is positioned at the downside of spool, shown in Fig. 1, Fig. 2, described controlling device is provided with the first groove 14, and described elastic element 13 is nested in 14 li of described the first grooves, and keeps the axial clearance between spool and controlling device; In the time that spool 11 is subject to downward extruding force, the pressure of the buffering spool that described elastic element 13 can be suitable.Described the first groove 14 can be the annular recess around valve rod; Described valve rod and mangetic core assembly also can comprise fastening piece 15, and described fastening piece 15 is socketed on valve rod and is positioned at the below of described controlling device, and described fastening piece 15 can be fixed on described controlling device 12 on described valve rod 10.

In like manner, in the time that described controlling device is positioned at the upside of described spool, described elastic element is arranged between described controlling device and described spool, and further, described controlling device or described spool are provided with the first groove for holding elastic element.

Spool of the present invention can be piston, can be also flap.

Valve rod of the present invention can be also scalariform, its surface can arrange rank portion 16, corresponding, on the center bore inner wall of described controlling device, can correspondingly be provided with convex portion 17, the described rank portion 16 of described valve rod can be supported on convex portion 17, in conjunction with the further fixing described controlling device 12 of fastening piece 15.

Optionally, described the first groove also can be arranged on the part contacting with controlling device on spool, and described elastic element is nested in the first groove being positioned on spool, can keep equally the axial clearance between spool and controlling device.Equally, described the first groove can be the annular recess around valve rod, can be also the groove of discrete multiple segment-like, and described elastic element is nested in described the first groove with corresponding shape.

Optionally, on described controlling device or spool, can be provided with multiple grooves, as the second groove, in described the second groove, be provided with equally elastic element.Described the second groove can be continuous annular recess equally, can be also the groove of segment-like.

Optionally, the internal surface of described controlling device can be provided with screw thread, and described controlling device can be fixed on described valve rod by described screwed, to play the effect of above-mentioned fastening piece.

Embodiment 2

The embodiment of the present invention provides a kind of valve rod and mangetic core assembly, as shown in Figure 3, described valve rod and mangetic core assembly 2 comprise valve rod 20, spool 21, and controlling device 22, described spool 21 and controlling device 22 are socketed on valve rod 20, controlling device 22 is positioned at spool 21 upsides or downside, between described controlling device 22 and spool 21, be also provided with elastic element 23, described controlling device or described spool are provided with groove, described elastic element 23 is nested in described groove, and described elastic element 23 specifically can be made up of rubber.Because described spool 21 and controlling device 22 are socketed on valve rod 20, therefore described spool 21 all has center hole with controlling device 22, wherein, the internal diameter of described spool and valve rod contacting part office is slightly larger than the external diameter of valve rod, makes the contact segment of spool and valve rod have radial clearance; The elastic element 23 of being located between spool and controlling device can make the contact segment of described spool and controlling device have axial clearance, and described radial clearance and axial clearance can make described spool produce and relatively move with respect to valve rod.

Preferably, in the time that described controlling device is positioned at the downside of piston, as shown in Figure 3, Figure 4, described controlling device is provided with the first groove 24, and described elastic element 23 is nested in 24 li of described the first grooves, and keeps the axial clearance between piston and controlling device; In the time that piston 21 is subject to downward extruding force, the pressure of the buffering spool that described elastic element 23 can be suitable.Described the first groove 24 can be the annular recess around valve rod; Described valve rod and mangetic core assembly also can comprise a fastening piece 25, and described fastening piece 25 is socketed on valve rod and is positioned at the below of described controlling device, and described fastening piece 25 can be fixed on described controlling device 22 on described valve rod 20.

In like manner, in the time that described controlling device is positioned at the upside of described spool, described elastic element is arranged between described controlling device and described spool, and further, described controlling device or described spool are provided with the first groove for holding elastic element.

Further, be also provided with projection 220, described protruding 220 and contact with described valve rod 20 and spool 21 in described controlling device, corresponding, described spool 21 is provided with recess 210, and described protruding 220 of described controlling device 22 cooperatively interacts with described recess 210.Concrete, described spool 21 keeps concentric fit with described controlling device projection 220, be that described spool 21 is consistent with the central axis of the projection 220 of controlling device and the axis of described valve rod 20, described protruding 220 can be that line contacts with the contact form of described recess 210, can be specifically cambered surface or the conical surface etc., this design regulates and the mutual alignment of valve rod spool more flexibly.

Optionally, described spool is provided with projection, described projection contacts with described valve rod and controlling device, accordingly, described controlling device is provided with recess, described projection and the described recess of described spool cooperatively interact, concrete, projection on described controlling device and described spool keeps concentric fit, be that described controlling device is consistent with the protruding central axis of spool and the axis of described valve rod, described projection can be that line contacts with the contact form of described recess, it can be specifically cambered surface or the conical surface etc., this design can regulate and the mutual alignment of valve rod spool more flexibly.

In the time that spool relatively moves, due to the existence of controlling device, also can further eliminate the lateral bending power of valve rod.

Spool of the present invention can be piston, can be also flap.

In addition, valve rod of the present invention can be also scalariform, and its surface can arrange rank portion, corresponding, on the inwall of described controlling device, can correspondingly be provided with projection, and it is upper that the described rank portion of described valve rod can be supported on projection, in conjunction with the further fixing described controlling device of fastening piece.

Optionally, described the first groove also can be arranged on the part contacting with controlling device on spool, and described elastic element is nested in the first groove being positioned on spool, can keep equally the axial clearance between spool and controlling device.Equally, described the first groove can be the annular recess around valve rod, can be also the groove of discrete multiple segment-like, the described elastic element of corresponding assembling in groove.

Optionally, described the first groove can also be the groove of discrete multiple segment-like, and described elastic element is nested in described the first groove with corresponding shape.

Optionally, on described controlling device or spool, can be provided with multiple grooves, as the second groove, in described the second groove, be provided with equally elastic element.Described the second groove can be continuous annular recess equally, can be also the groove of segment-like.

Optionally, the internal surface of described controlling device can be provided with screw thread, and described controlling device can be fixed on described valve rod by described screwed, to replace the effect of above-mentioned fastening piece.

Embodiment 3

The embodiment of the present invention provides a kind of valve.Described valve comprises valve rod and the mangetic core assembly described in embodiment 1 or 2, described valve also comprises valve port, one end of described valve rod and spool are through described at valve port, described valve core housing is connected on one end of described valve rod, described spool is moved under the driving of valve rod, in the time that spool contacts completely with valve port, just form valve port closed state.

The described controlling device of described valve is socketed on described valve rod, is positioned at upside or the downside of described spool, is also provided with elastic element between described spool and controlling device, and described elastic element is positioned at the groove of spool or controlling device.

The valve providing according to the embodiment of the present invention, due to the existence of controlling device and elastic element, makes to have axial clearance between spool and controlling device; Because the internal diameter of spool is greater than the external diameter of valve rod, make to there is radial clearance between valve rod and spool, described axial clearance and radial clearance make in the closing process of valve, described spool is moved according to the relative valve rod of different situations, regulate the position of self, make spool and valve port reach laminating completely, improved the performance of closing of valve.

Further, in described controlling device, be also provided with projection with the contacting part office of described valve rod, corresponding, described spool is provided with recess, and described projection is engaged in described recess, and described spool and described projection keep concentric fit; Optionally, on described spool, be provided with projection with the contact segment of described valve rod, corresponding, described controlling device is provided with recess, and described projection is engaged in described recess, and described controlling device and described projection keep concentric fit.This design further make spool can be in the time of close port more relatively valve rod be moved, improve the performance of closing of valve.

Optionally, the described controlling device of valve of the present invention can also be arranged on valve core inside, and is provided with elastic element between the contact segment of spool and controlling device, can reach equally the effect of regulating spool.Described spool can be piston, can be also flap, but be not limited to this.

Valve of the present invention does not need to adopt higher machining accuracy and tolerance fit grade in process of production, but also reaches the good performance of closing, and greatly reduces cost.

The valve that the present invention protects can be specifically pressure governor, back pressure valve or respond to and regulate the control valve of its pressure by other electronic induction element controls, but be not limited to above-mentioned valve.

It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.

Although can use term first, second, third, etc. etc. to describe various elements, parts or part at this, these elements, parts or part should not limited by these terms; These terms can be only for distinguishing element, parts or a part.When in the time that this uses term as " first ", " second " and other numerical value terms, it does not comprise order or order, unless explicitly pointed out in context.Therefore,, in the case of not departing from the explanation of exemplary embodiment, the following stated the first element, parts, part can be interpreted as term the first element, parts, part.

The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., be all included in protection scope of the present invention.

Claims (10)

1. valve rod and a mangetic core assembly, described valve core housing is connected on described valve rod, it is characterized in that, is also socketed with controlling device on described valve rod, between described controlling device and described spool, is provided with elastic element.
2. valve rod according to claim 1 and mangetic core assembly, is characterized in that, described controlling device or described spool are provided with the first groove, and described elastic element is engaged in described the first groove.
3. valve rod according to claim 2 and mangetic core assembly, is characterized in that, described controlling device is provided with projection, described projection and described valve rod and spool coupling, described spool is provided with recess, and described projection is engaged in described recess, described spool and described protruding concentric fit.
4. valve rod according to claim 2 and mangetic core assembly, is characterized in that, described spool is provided with projection, described projection and described valve rod and controlling device coupling, described controlling device is provided with recess, and described projection is engaged in described recess, described controlling device and described protruding concentric fit.
5. according to claim 2-4 arbitrary described valve rod and mangetic core assembly, it is characterized in that, described the first groove is the continuous annular recess around described valve rod, and the described elastic element being placed in described annular recess is O shape circle.
6. according to claim 2-4 arbitrary described valve rod and mangetic core assembly, it is characterized in that, described the first groove is the multiple segment-like grooves around described valve rod.
7. according to claim 2-4 arbitrary described valve rod and mangetic core assembly, it is characterized in that, on described controlling device or described spool, be also provided with multiple grooves, described multiple grooves also coordinate with described elastic element.
8. according to claim 2-4 arbitrary described valve rod and mangetic core assembly, it is characterized in that, described controlling device is fixed on described valve rod by nut, or has screw thread on the inwall of described controlling device, and described controlling device can be screwed and is fixed on valve rod by the screw thread on inwall.
9. a valve, is characterized in that, comprises valve rod and mangetic core assembly as described in as arbitrary in claim 1-8, described valve also comprises valve port, one end of described valve rod and described spool are through described valve port, and described valve rod band movable valve plug moves, and described spool can contact valve port and seal described valve port.
10. valve according to claim 9, is characterized in that, the spool of described valve can be piston or flap.
CN201210424700.4A 2012-10-22 2012-10-22 Valve rod and valve plug assembly and valve with same CN103775662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210424700.4A CN103775662A (en) 2012-10-22 2012-10-22 Valve rod and valve plug assembly and valve with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210424700.4A CN103775662A (en) 2012-10-22 2012-10-22 Valve rod and valve plug assembly and valve with same

Publications (1)

Publication Number Publication Date
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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310277A (en) * 1963-07-06 1967-03-21 Danfoss As Valve and valve disc
CN2287240Y (en) * 1996-12-19 1998-08-05 袁晓明 Aerated cut-off valve
CN1302965A (en) * 2000-01-06 2001-07-11 速睦喜股份有限公司 Two way selector valve
CN2465009Y (en) * 2001-02-09 2001-12-12 刘金禄 Guiding type safety valve with discharging valve device
CN2758566Y (en) * 2004-12-28 2006-02-15 何永水 Electric valve
CN200996477Y (en) * 2006-12-06 2007-12-26 贾祯祥 Stop valve
CN201236952Y (en) * 2008-01-25 2009-05-13 上海富地阀门有限公司 Liquid-gas pressure break valve
CN201858416U (en) * 2010-11-16 2011-06-08 苏州德兰能源科技有限公司 Buffering and automatic compensation connecting structure for electric actuator and valve
CN202176778U (en) * 2011-07-28 2012-03-28 杭州良工阀门有限公司 Self-operated pressure regulating valve in soft sealing structure
CN202360781U (en) * 2011-11-10 2012-08-01 上海齐耀动力技术有限公司 Stop valve with adjustable valve core posture structure
CN203176393U (en) * 2012-10-22 2013-09-04 费希尔久安输配设备(成都)有限公司 Valve stem and valve core assembly and valve having the assembly

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310277A (en) * 1963-07-06 1967-03-21 Danfoss As Valve and valve disc
CN2287240Y (en) * 1996-12-19 1998-08-05 袁晓明 Aerated cut-off valve
CN1302965A (en) * 2000-01-06 2001-07-11 速睦喜股份有限公司 Two way selector valve
CN2465009Y (en) * 2001-02-09 2001-12-12 刘金禄 Guiding type safety valve with discharging valve device
CN2758566Y (en) * 2004-12-28 2006-02-15 何永水 Electric valve
CN200996477Y (en) * 2006-12-06 2007-12-26 贾祯祥 Stop valve
CN201236952Y (en) * 2008-01-25 2009-05-13 上海富地阀门有限公司 Liquid-gas pressure break valve
CN201858416U (en) * 2010-11-16 2011-06-08 苏州德兰能源科技有限公司 Buffering and automatic compensation connecting structure for electric actuator and valve
CN202176778U (en) * 2011-07-28 2012-03-28 杭州良工阀门有限公司 Self-operated pressure regulating valve in soft sealing structure
CN202360781U (en) * 2011-11-10 2012-08-01 上海齐耀动力技术有限公司 Stop valve with adjustable valve core posture structure
CN203176393U (en) * 2012-10-22 2013-09-04 费希尔久安输配设备(成都)有限公司 Valve stem and valve core assembly and valve having the assembly

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Application publication date: 20140507