CN207454898U - Valve opening and closing mechanism and valve - Google Patents
Valve opening and closing mechanism and valve Download PDFInfo
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- CN207454898U CN207454898U CN201721290413.3U CN201721290413U CN207454898U CN 207454898 U CN207454898 U CN 207454898U CN 201721290413 U CN201721290413 U CN 201721290413U CN 207454898 U CN207454898 U CN 207454898U
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Abstract
The utility model provides a kind of valve opening and closing mechanism and valve, is related to the technical field of valve, the valve opening and closing mechanism, including valve body mechanism and control mechanism, the valve body mechanism includes piston；The control mechanism includes proportion electro-magnet, and the valve rod being connected with the dynamic iron core of the proportion electro-magnet, one end of the valve rod is connected with the valve body mechanism, the proportion electro-magnet controls the stroke of the piston motion by the valve rod, so that adjustable by the flow of the medium of the valve.Using the stop place of electromagnetic mode regulating piston, achieve the purpose that control valve flow, non-filling in device will not generate leakage, quick action, and operating life is long.
Description
Technical field
The utility model is related to the technical field of valve, more particularly, to a kind of valve opening and closing mechanism and valve.
Background technology
Valve is for medium (liquid, the gas, powder) flowing in piping and equipment or stopping and can control its flow
Device.Valve can be used for the empty gas and water of control, steam, various Korrosionsmediums, mud, oil product, liquid metal and radioactivity to be situated between
The flowing of the various types fluid such as matter.
Valve currently used for controlling class common is cut-off class valve and adjusting class valve, and common solenoid valve belongs to cut-off class valve
Door, due to the reasons in structure of electromagnet, can be only formed and be turned on and off two positions, and flow can not be adjusted.It is existing
Regulating valve, so as to fulfill the adjusting of pressure or flow, is held generally by the action of pneumatically or electrically actuating mechanism controls spool
It is connected between row mechanism and spool using valve rod, to ensure that the medium being conditioned does not generate leakage, it is close to need filler at valve rod
Envelope, filler after long-term action there may be leakage, on the other hand, no matter pneumatic control valve or electric control valve, from a position
Putting to another location needs a very long actuation time, wherein electric control valve from minimum to maximum opening more than 15s, to one
A little important places are clearly unconformable.
Utility model content
The purpose of this utility model is to provide a kind of valve opening and closing mechanism and valve, to alleviate existing solenoid valve only
Have and open and close two gears, and regulating valve actuation time is long, when long-time after filler the technical issues of easily revealing.
Valve opening and closing mechanism provided by the utility model, including valve body mechanism and control mechanism, the valve body mechanism includes
Piston；The control mechanism includes proportion electro-magnet and the valve rod being connected with the dynamic iron core of the proportion electro-magnet, the valve
One end of bar is connected with the valve body mechanism, and the proportion electro-magnet controls the stroke of the piston motion by the valve rod,
It is so that adjustable by the flow of the medium of the valve.
Further, the valve body mechanism includes guide sleeve, and the piston is slidably connected with the guide sleeve；
The end set of the piston has a first through hole, the first through hole and low-pressure end flow passage, in the piston
It is provided with core assembly；
The core assembly includes guide's valve seat, and second connected with the first through hole is provided on guide's valve seat
Through hole；
Ecto-entad, the core assembly include guide valve blocks, guide's valve pocket and pilot valve, guide's valve pocket successively
There is identical motion state in the axial direction with the pilot valve；
The piston includes upper cavity, and guide's valve seat, guide valve blocks on the side wall of the piston with being correspondingly arranged on
Deflector hole, the deflector hole are used to connect high-pressure side runner with upper cavity；The pilot valve includes blocking described the
The chock plug of two through holes, so that the communicating passage between second through hole and upper cavity is closed.
Further, between guide's valve pocket and pilot valve and between guide's valve pocket and guide valve blocks
With gap, so that the axle center of the guide valve blocks, guide's valve pocket and pilot valve is conllinear during the motion；
Guide's valve pocket includes the first wide portion, narrow portion and the second width portion that set gradually, the surface in the first width portion
On be provided with the first fluting, first fluting is corresponding with deflector hole, from the first width portion to the narrow portion direction, described the
One fluting width gradually increase so that the pilot valve towards away from guide's valve seat direction movement when, it is described first fluting with
The water conservancy diversion area of deflector hole is gradually reduced, and the medium into the upper cavity is gradually reduced；
The guide valve blocks include annular groove endoporus, be provided on the surface in the second width portion in the annular groove
Corresponding second fluting in hole, from the second width portion to the narrow portion direction, the width of second fluting gradually increases, so that
When the pilot valve is towards away from the movement of guide's valve seat direction, the water conservancy diversion area of second fluting and the annular groove endoporus increases
Add, the rate-of flow of low-pressure end runner is entered by second through hole to be increased.
Further, the pilot valve includes pilot valve pressing sleeve, supporting sleeve and lower feedback spring, the lower feedback spring
It is arranged between pilot valve pressing sleeve, supporting sleeve；
The pilot valve includes feedback spring pressing sleeve, feedback swivel nut and upper feedback spring, and the upper feedback spring is set
Between feedback spring pressing sleeve, feedback swivel nut；
The feedback swivel nut is socketed in the outside of the valve rod, and the upper feedback spring is used for lower feedback spring described
When the in vivo pressure of epicoele and the pressure differential of low-pressure end runner convert, prevent the piston from moving.
Further, the proportion electro-magnet includes being arranged on the tapered polepiece outside static iron core, the tapered polepiece
Material is permeability magnetic material；Annular slope of the tapered polepiece towards the end face of the dynamic iron core to be circumferentially inclined outwardly；
The proportion electro-magnet includes spring shield and spring base, and the valve rod wears the spring base and connects with the dynamic iron core
It connects；The proportion electro-magnet includes balancing spring, and described balancing spring one end is against the bottom surface of the spring shield, and the other end is against
On the spring base, and it is arranged with the valve rod；
Annular groove is provided on the valve rod, the proportion electro-magnet includes two symmetrically arranged semi-circular fasteners,
Two semi-circular fasteners are clamped with the groove, and the fastener is used to be stuck in the bottom surface of the spring base, so that the valve
Bar has identical motion state with the spring base.
Further, the proportion electro-magnet includes dynamic iron core and static iron core, and the dynamic iron core is towards the static iron core
Include protrusion on end face, shown static iron core is towards being provided with recess portion corresponding with the protrusion on the end face of the dynamic iron core.
Further, the proportion electro-magnet includes housing, and the dynamic iron core and static iron core are located in the housing,
The dynamic iron core is towards being provided with magnetism isolating spacer on the end face of the static iron core.
Further, valve opening and closing mechanism includes stroke indicating mechanism, and the stroke indicating mechanism includes and the dynamic iron
Core has the stroke iron core of associated movement state, and coil group, the coil are provided on the outside of the motion path of the stroke iron core
Group is connected with fairing, and the fairing is used to the voltage signal that the stroke indicating mechanism generates becoming electric current letter
Number.
Further, the valve opening and closing mechanism includes control unit, comparison unit and feedback unit, described control unit
For to the travel settings information of piston motion described in the proportion electro-magnet input control, the comparison unit to be used to compare institute
It states the stroke detection information that stroke indicating mechanism detected and whether the travel settings information that described control unit inputs is consistent；Institute
Feedback unit is stated for when the stroke detection information and travel settings information are inconsistent, control described control unit to be to described
Proportion electro-magnet inputs an adjustment voltage, so that the stroke detection information is identical with travel settings information.
Valve provided by the utility model, including above-mentioned valve opening and closing mechanism.
Valve opening and closing mechanism provided by the utility model, including valve body mechanism and control mechanism, the valve body mechanism includes
Piston；The control mechanism includes proportion electro-magnet and the valve rod being connected with the dynamic iron core of the proportion electro-magnet, the valve
One end of bar is connected with the valve body mechanism, because the movement travel of the dynamic iron core of proportion electro-magnet is with being input to the ratio electricity
The size of voltage in magnet is directly proportional, it is possible to by adjusting the voltage of ratio electromagnet, dynamic iron core be made to rest on correspondence
Position, so as to pull or promote piston, maintain the piston at a corresponding position, can thus adjust through the valve
The flow of the medium of door.Using the stop place of electromagnetic mode regulating piston, achieve the purpose that control valve flow, in device
Non-filling, will not generate leakage, and operating life is long.
Valve provided by the utility model, including above-mentioned valve opening and closing mechanism.The valve opening and closing mechanism includes valve body
Mechanism and control mechanism, the valve body mechanism include piston；The control mechanism include proportion electro-magnet and with the ratio
The valve rod of the dynamic iron core connection of electromagnet, one end of the valve rod are connected with the valve body mechanism, because proportion electro-magnet is dynamic
The size of voltage of the movement travel of iron core to being input in the proportion electro-magnet is directly proportional, it is possible to by adjusting ratio
The voltage of electromagnet makes dynamic iron core rest on corresponding position, so as to pull or promote piston, maintain the piston at one it is right
The position answered can thus adjust the flow of the medium by the valve.Using the stop place of electromagnetic mode regulating piston
It puts, achievees the purpose that control valve flow, non-filling in device will not generate leakage, operating life is long.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it describes below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the schematic diagram for the valve opening and closing mechanism that the utility model embodiment provides；
Fig. 2 is the schematic diagram of the valve body mechanism for the valve opening and closing mechanism that the utility model embodiment provides；
Fig. 3 is the schematic diagram of the proportion electro-magnet for the valve opening and closing mechanism that the utility model embodiment provides；
Fig. 4 is the partial enlarged view of location A in Fig. 3；
Fig. 5 is the schematic diagram of the stroke indicating mechanism for the valve opening and closing mechanism that the utility model embodiment provides.
Icon：100- valve bodies mechanism；110- pistons；120- guide's valve seat；130- guide valve blocks；140- guide's valve pocket；
150- pilot valves；160- deflector holes；210- pilot valve pressing sleeves；220- supporting sleeves；Feedback spring under 230-；240- feedback springs
Pressing sleeve；250- feeds back swivel nut；The upper feedback springs of 260-；300- control mechanisms；310- dynamic iron cores；320- static iron cores；330- tapers
Pole shoe；340- coils；350- balancing springs；400- valve rods；500- magnetism isolating spacers；600- strokes indicating mechanism；610- stroke iron cores.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected scope.
, it is necessary to explanation in the description of the utility model, such as occur term " " center ", " on ", " under ", " left side ",
" right side ", " vertical ", " level ", " interior ", " outer " etc., the orientation or position relationship of instruction are based on orientation shown in the drawings or position
Relation is put, be for only for ease of description the utility model and simplifies description rather than instruction or implies signified device or element
There must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.This
Outside, such as there is term " first ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or implying relatively heavy
The property wanted.
As shown in Figure 1, valve opening and closing mechanism provided by the utility model, including valve body mechanism 100 and control mechanism 300,
The valve body mechanism 100 includes piston 110；The control mechanism 300 include proportion electro-magnet and with the proportion electro-magnet
Dynamic iron core 310 connect valve rod 400, one end of the valve rod 400 is connected with the valve body mechanism 100, because ratio electromagnetism
The size of voltage of the movement travel of the dynamic iron core 310 of iron to being input in the proportion electro-magnet is directly proportional, it is possible to logical
The voltage of ratio electromagnet is overregulated, dynamic iron core 310 is made to rest on corresponding position, so as to pull or promote piston 110, is made
Piston 110 is maintained at a corresponding position, can thus adjust the flow of the medium by the valve.Using electromagnetism side
The stop place of formula regulating piston 110, achievees the purpose that control valve flow, and non-filling in device will not generate leakage, act
Long lifespan.
Specifically, as shown in Fig. 2, the valve body mechanism 100 can include guide sleeve, the piston 110 and the guiding
Set is slidably connected, and piston 110, which moves out, can block valve seat, and piston 110 is moved into the guide sleeve, and valve seat is opened,
High-pressure side runner and low-pressure end flow passage.The end set of the piston 110 has first through hole, the first through hole and low pressure
Flow passage is held, core assembly is provided in the piston 110, core assembly is used to control the motion state of piston 110.It is described
Core assembly can include guide's valve seat 120, and it is logical that second connected with the first through hole is provided on first guide valve seat 120
Hole.
Ecto-entad, the core assembly include guide valve blocks 130, guide's valve pocket 140 and pilot valve 150 successively, first
Guide valve bushing 140 is the plunger for having two-stage shoulder axis, on the inside of its plunger on be machined with multiple V-shape window mouths, guide's valve pocket 140 uses
High temperature alloy manufactures, and good mechanical property can be still kept under worst hot case.Guide's valve pocket 140 and the pilot valve
150 have identical motion state in the axial direction, that is, the two moves forward or backward together；It can be in piston 110
Pilot valve gland is provided with, upper cavity is formed at the top of pilot valve gland.Guide's valve seat 120, guide valve blocks 130 with it is described
It is correspondingly arranged on deflector hole 160 on the side wall of piston 110, the medium in high-pressure side runner can be flow by deflector hole 160
In upper cavity, the pilot valve 150 includes blocking the chock plug of second through hole, so that second through hole and epicoele
Communicating passage between body is closed, and pressure medium is acted in pilot valve 150, and the second through hole is closed, and pressure medium can be with
Piston 110 is pressed down against, so that piston 110 is sealed on valve seat.After pilot valve 150 moves upwards, on the one hand, can
140 backstop of guide's valve pocket to be driven to live the outlet of deflector hole 160；On the other hand, can be had left with the chock plug of pilot valve 150
Two through holes, the in vivo medium of epicoele can enter low-pressure end runner, the in vivo pressure of epicoele from first through hole and the second through hole
It reduces, it is easier to Open valve.
Further, between guide's valve pocket 140 and pilot valve 150 and guide's valve pocket 140 and pilot valve
Gap is respectively provided between body 130, can transport the axle center of the guide valve blocks 130, guide's valve pocket 140 and pilot valve 150
Dynamic process, gradually adjusts position, makes the central axes of guide's valve pocket 140 and pilot valve 150 on same straight line, if first
Do not have gap between guide valve bushing 140 and pilot valve 150 and between guide's valve pocket 140 and guide valve blocks 130,
So easily cause the problem of pilot valve 150 is stuck.Pilot valve 150 is connected with guide's valve pocket 140 using automatic aligning
Structure is suitable for the larger occasion of temperature change.
Guide's valve pocket 140 can include the first wide portion, narrow portion and the second width portion that set gradually, the first wide portion and second wide
Portion is respectively cylinder, plays the role of plug, and the first fluting, first fluting are provided on the surface in the first wide portion
Corresponding with deflector hole 160, from the first width portion to the narrow portion direction, the width of first fluting gradually increases, such as Fig. 2
Shown state, the head of pilot valve 150 block the second through hole of guide's valve seat 120, the most width position of the first fluting
Corresponding with deflector hole 160, the water conservancy diversion area that both can make is maximum, and it is most fast to be flowed into the medium of upper cavity, when pilot valve 150
During towards away from the 120 direction movement of guide's valve seat, the first fluting and the water conservancy diversion area of deflector hole 160 are gradually reduced, and can make entrance
The medium of the upper cavity is gradually reduced, that is, progressively closes off deflector hole 160.The guide valve blocks 130 include annular groove
Endoporus is provided with the second fluting corresponding with the annular groove endoporus on the surface in the second wide portion, from the second width portion
To the narrow portion direction, it is described second fluting width gradually increase, state as shown in Figure 2, the annular groove endoporus with
The water conservancy diversion area of second fluting is minimum, when the pilot valve 150 is towards away from the 120 direction movement of guide's valve seat, the second fluting
It is gradually increased with the water conservancy diversion area of the annular groove endoporus, medium is entered after annular groove endoporus again by the second fluting by the
The flow that two through holes enter low-pressure end runner increases.It, can be progressively by the above-mentioned restriction to the first fluting and the second fluting
Change rate-of flow, upper cavity pressure difference gradually changes, and the movement of piston 110 is more laborsaving.
Further, the pilot valve 150 can include pilot valve pressing sleeve 210, supporting sleeve 220 and lower feedback spring
230, the lower feedback spring 230 is arranged between pilot valve pressing sleeve 210, supporting sleeve 220；The pilot valve 150 can wrap
It includes feedback spring pressing sleeve 240, feedback swivel nut 250 and upper feedback spring 260, the upper feedback spring 260 and is arranged on feedback spring
Between pressing sleeve 240, feedback swivel nut 250；The feedback swivel nut 250 is socketed in the outside of the valve rod 400.Upper feedback spring 260
With lower feedback spring 230 by feeding back swivel nut 250 by 150 float support of pilot valve in 110 intracavitary of piston.In supporting sleeve 220
Endoporus has the bead of uniform thickness with feedback 250 outer diameter of swivel nut, and in free state, feedback swivel nut 250 is limited by upper and lower feedback spring 230
It is scheduled at 220 bead of supporting sleeve.When 110 upper and lower cavity pressure difference of piston changes, it is micro that pressure difference can be such that piston 110 has up or down
Mobile trend.At this moment, guide valve blocks 130 and 140 relative position of guide's valve pocket generate variation, upper feedback spring 260 or under
Feedback spring 230 deforms upon so that 110 upper and lower cavity pressure difference of piston is returned to original state, keep 110 position of piston not with
Pressure-difference fluctuation changes.
Concrete structure illustrates that piston 110 has the cone of peculiar curved-surface structure for end, complete for coordinating with valve seat
It works into flow-rate adjustment, 110 main body of piston is cylindrical structural, and cylinder outer diameter is oriented to for piston 110.Justify in peculiar curved surface
Cone base and the sealing surface that cylinder transition position is piston 110, sealing surface are that sealing surface coordinates on conical structure, with valve seat
Complete the cutting function to controlling medium.There is the cylinder of through hole centered on guide's valve seat 120, the bottom hole in piston 110
Portion, 120 cylindrical sides of guide's valve seat and end face have round hole, and holes communicates, and are packed into cylindrical sides after 110 endoporus of piston
Hole is corresponding with the preformed hole on piston 110, this hole is used to that medium to be controlled to be passed through 110 epicoele amount of piston.During guide valve blocks 130 are
Between have the cylinder of stepped bore, have multiple annular grooves in stepped hole, for pilot valve flow control, guide valve blocks 130 are installed
In 110 endoporus of piston, lower face is pressed on 130 upper surface of guide valve blocks.Guide's valve pocket 140 is the plunger for having two-stage shoulder axis,
Multiple V-shape window mouths are machined on the inside of its plunger, guide's valve pocket 140 is manufactured using high temperature alloy, still may be used under worst hot case
Keep good mechanical property.Guide's valve liner is columnar structured, the surface roughness of endoporus and outer diameter with the bottom of compared with.Guide
150 one end of spool is conical structure, and the other end has periphery screw thread.Guide's valve pocket 140 is mounted on guide's valve liner
Pilot valve 150 has cylinder one end, and the nut that is locked after loading is limited in pilot valve 150, guide's valve pocket 140 with
Guide's core is radial and axial to have fit clearance, it can be achieved that automatic aligning.Guide's valve seat 120, guide valve blocks 130, pilot valve pressure
Lid is fixed on 110 inner cavity of piston by 110 gland of piston.
110 ring of piston is installed, the ground processing of 110 ring outer diameter of piston and both sides reduces friction resistance on piston 110
Power ensure that piston 110 and liner packing performance.
As shown in Figure 3-4, the proportion electro-magnet includes being arranged on the tapered polepiece 330 outside static iron core 320, the cone
The material of shape pole shoe 330 is permeability magnetic material；The tapered polepiece 330 is circumferentially outside towards the end face of the dynamic iron core 310
Inclined annular slope.After coil 340 into proportion electro-magnet loads a certain amount of voltage, coil 340, dynamic iron core can be made
310th, static iron core 320 and tapered polepiece 330 nearby generate magnetic field, and the superposition in multiple magnetic fields can make dynamic iron core 310 and static iron core
320 generate the power that attracts each other because there is provided tapered polepiece 330, so as to so that the magnetic field force that receives of dynamic iron core 310 with adding
Voltage on coil 340 is loaded in linear, so by adjusting voltage value, the electromagnetism that can be subject to dynamic iron core 310
Power gradually changes, so as to achieve the purpose that control valve opens size.
The proportion electro-magnet can include spring shield and spring base, the valve rod 400 wear the spring base with it is described
Dynamic iron core 310 connects.The proportion electro-magnet can include balancing spring 350, and described 350 one end of balancing spring is against the bullet
The bottom surface of spring cover, the other end are against on the spring base, and are arranged with the valve rod 400, and annular is provided on the valve rod 400
Groove, the proportion electro-magnet include two symmetrically arranged semi-circular fasteners, and two semi-circular fasteners are located at described recessed
In slot, the fastener is used to be stuck in the bottom surface of the spring base when valve rod 400 moves upwards, can make the valve rod 400 with
The spring base moves upwardly together, that is to say, that after dynamic iron core 310 and static iron core 320 generate the power to attract each other, this
When power is identical with the elastic force that balancing spring 350 generates, 310 stop motion of dynamic iron core, valve keeps this aperture constant.
Further, the proportion electro-magnet includes dynamic iron core 310 and static iron core 320, and the dynamic iron core 310 is towards described
Include protrusion on the end face of static iron core 320, shown static iron core 320 is towards being provided on the end face of the dynamic iron core 310 and institute
State the corresponding recess portion in protrusion.The setting of protrusion and recess portion makes dynamic iron core 310 and 320 phase of static iron core to coordinate tapered polepiece 330
Electromagnetic force between mutually is more smooth, that is, in order to make the displacement of dynamic iron core 310 and be input in proportion electro-magnet
Proportional between voltage, the problem of electromagnetic force is prevented to be mutated, occurs, can not gradual control valve aperture.
Convex surface is made in 320 end of static iron core, and dynamic iron core 310 is attracted end face and is designed to concave surface, and balancing spring 350 may be employed
Specialty alloy materials manufacture, such as Inconel X750 alloys, at high temperature with good mechanical property.
Further, the proportion electro-magnet includes housing, and the dynamic iron core 310 and static iron core 320 are located at the screen
It covers in set, dynamic iron core 310 is prevented to be attracted with static iron core 320 and other devices.The dynamic iron core 310 is towards the static iron core 320
End face on be provided with magnetism isolating spacer 500, for adjusting proportion electro-magnet working gas gap, the end face of dynamic iron core 310 is prevented to be pull-in on
The end face of static iron core 320 is attracted.Using material of the high-strength stainless steel as housing, high temperature and pressure occasion can be applied to.
Concrete structure illustrates that there is end socket in described housing one end in cylinder, and the seal head end of cylinder protrudes one end thin-wall tube,
Internal thread hole is arranged at the bottom of cylinder；The static iron core 320 has the cylinder in shoulder hole for centre, and there is conical round table in one end, quiet
Iron core 320 is manufactured using permeability magnetic material；The attachment screw is the intermediate hexagon socket head cap screw for having circular through hole, and above-mentioned is quiet
Iron core 320 is placed on housing bottom, and attachment screw is connected to through 320 hole of static iron core in the screw hole of housing bottom.The line
Circle shell is the porose cylinder in bottom, and there is the taper basin mouth of protrusion at cylinder bottom, and above-mentioned coil 340 is placed on coil housing bottom, coil 340
For inner hole sleeve on the basin mouth outer wall at housing bottom, the taper basin mouth of magnetic conductive board is lowered into 340 endoporus of coil, upper end disc outer diameter
It is engaged with coil housing endoporus, lower face is pressed in coil rack upper end, and coil housing is manufactured using permeability magnetic material.Coil 340 is
The coiling on copper skeleton by polyimides enamel covered wire, skeleton have the cylinder of baffle for both ends；The magnetic conductive board is cone
Shape basin mouth disk；The porose drum structure in the spring set upper side, the dynamic iron core 310 are cylinder, and one end is fluted,
There is through hole at center, and there is screw thread in through hole one end；The valve rod 400 is cylinder stock, and there is external screw thread in round bar one end, and there is interior spiral shell in one end
Line has annular groove on the cylinder；The spring base is disc, and there are through hole and internal thread in center；The divided ring is symmetrical
The annulus of two valves；Above-mentioned valve rod 400 is threadedly coupled therewith through 310 hole of dynamic iron core, and above-mentioned divided ring is mounted on 400 ring of valve rod
In shape slot, outer shroud is positioned with spring base hole, above-mentioned spring pocket and balancing spring 350 be mounted on dynamic iron core 310 and spring base it
Between, lower end is fixed with standard nut.
High-strength stainless steel material may be employed in above-mentioned attachment screw, such as SA453-660 material manufactures, head are processed into
More valve structures, grooving is angled with outer circle, and after screwing in clockwise, outer rim and 320 endoporus of static iron core of notch form locking
Structure can effectively prevent static iron core 320 from coming off.
Housing uses non-magnet material, and being attracted area in dynamic iron core 310 and static iron core 320 increases magnetism isolating spacer 500, and passes through
The control of the tip of pole shoe Angle Position of pyramidal structure, ensure that fixed air gap, and proportion electro-magnet is made to be fully operational in suction and electricity
It is pressed into direct ratio region.
As shown in figure 5, valve opening and closing mechanism includes stroke indicating mechanism 600, the stroke indicating mechanism 600 includes and institute
Stating dynamic iron core 310 has the stroke iron core 610 of associated movement state, is provided on the outside of the motion path of the stroke iron core 610
Coil group, the coil group are connected with fairing, and the fairing is used for the electricity for generating the stroke indicating mechanism 600
Pressure signal becomes current signal.Promotion or pulling that iron core is subject to valve rod 400 are formed, its position can be made to change, is led to
Cross the feedback information of hot-wire coil group, the displacement of stroke iron core 610 can be obtained, so as to obtain piston 110 rise or
Person's slippage, that is, the degree of valve opening.
Stroke indicating mechanism 600 further include iron core supporting rod, housing, coil group, coil housing, shield shell, magnetic conductive board,
Shield the compositions such as cap, nut.
Stroke iron core 610 can be connected by iron core supporting rod with valve rod 400, can also directly be connected by valve rod 400
Form iron core.
Iron core supporting rod lower end is connected to one with proportion electro-magnet dynamic iron core 310, valve rod 400 by stroke adjustment nut
It rises, stroke iron core 610 is made to realize synchronizing moving with proportion electro-magnet dynamic iron core 310.Stroke iron core 610 is made to have hole for a centre
Cylinder, iron core post upper cylinder passes through, and makes stroke iron core 610 for an interstitial hole, and can pass through clinching method will
Two parts link together, and have certain free gap between connection latter two components.
Coil group is made of primary coil, two groups of parameters identical secondary coil, skeleton, lead etc..
Coil housing and magnetic conductive board are manufactured by permeability magnetic material, and shield shell and shielding cap are manufactured by copper alloy.
Housing can be an integral structure with proportion electro-magnet housing, by the non-magnetic stainless steel material system of high intensity
It makes.
Further, the valve opening and closing mechanism can include control unit, comparison unit and feedback unit, and user is led to
The travel settings information that piston 110 described in control unit to the proportion electro-magnet input control moves is crossed, such as needs piston
110 rise 5cm, and after valve opening and closing mechanism kinematic, stroke indicating mechanism 600 can obtain a stroke detection information, described right
It is used to compare stroke detection information and the stroke of described control unit input that the stroke indicating mechanism 600 is detected than unit
Whether set information is consistent, when the two is consistent, also just illustrates whether the aperture of valve meets control requirement；But the two is inconsistent
When, the feedback unit controls described control unit to input an adjustment voltage to the proportion electro-magnet, until two signals
It is identical, form closed-loop control.
Valve provided by the utility model, including above-mentioned valve opening and closing mechanism.The valve opening and closing mechanism includes valve body
Mechanism 100 and control mechanism 300, the valve body mechanism 100 include piston 110；The control mechanism 300 includes ratio electromagnetism
Iron and the valve rod 400 being connected with the dynamic iron core 310 of the proportion electro-magnet, one end of the valve rod 400 and the valve body machine
Structure 100 connects, because the movement travel of the dynamic iron core 310 of proportion electro-magnet and the voltage that is input in the proportion electro-magnet
Size is directly proportional, it is possible to and by adjusting the voltage of ratio electromagnet, dynamic iron core 310 is made to rest on corresponding position, so as to
Piston 110 is pulled or promoted, piston 110 is made to be maintained at a corresponding position, can thus be adjusted through the valve
The flow of medium.Using the stop place of electromagnetic mode regulating piston 110, achieve the purpose that control valve flow, in device
Non-filling, will not generate leakage, and operating life is long.
Valve body includes low-pressure end runner and valve seat, and austenitic stainless steel processing may be employed in valve body, and spherical inner chamber can be effective
Reduce stress concentration phenomenon.Valve seat is embedded in low-pressure end runner, compact-sized.Valve seat is interference fit with low-pressure end runner,
Valve seat outer surface pile-up welding hard alloy is machined with multiple tracks ring-shaped groove on valve seat outer wall, makes at low-pressure end runner and valve seat cooperation
Specific contact pressure increase.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from this practicality newly
The scope of each embodiment technical solution of type.
Claims (10)
1. a kind of valve opening and closing mechanism, which is characterized in that including valve body mechanism and control mechanism, the valve body mechanism includes living
Plug；The control mechanism includes proportion electro-magnet and the valve rod being connected with the dynamic iron core of the proportion electro-magnet, the valve rod
One end be connected with the valve body mechanism, the proportion electro-magnet controls the stroke of the piston motion by the valve rod, with
The flow for making the medium by the valve is adjustable.
2. valve opening and closing mechanism according to claim 1, which is characterized in that the valve body mechanism includes guide sleeve, described
Piston is slidably connected with the guide sleeve；
The end set of the piston has first through hole, the first through hole and low-pressure end flow passage, is set in the piston
There is core assembly；
The core assembly includes guide's valve seat, and it is logical that second connected with the first through hole is provided on guide's valve seat
Hole；
Ecto-entad, the core assembly include guide valve blocks, guide's valve pocket and pilot valve, guide's valve pocket and institute successively
State pilot valve has identical motion state in the axial direction；
The piston includes upper cavity, and guide's valve seat, guide valve blocks on the side wall of the piston with being correspondingly arranged on water conservancy diversion
Hole, the deflector hole are used to connect high-pressure side runner with upper cavity；The pilot valve is including logical for blocking described second
The chock plug in hole, so that the communicating passage between second through hole and upper cavity is closed.
3. valve opening and closing mechanism according to claim 2, which is characterized in that between guide's valve pocket and pilot valve,
And gap is respectively provided between guide's valve pocket and guide valve blocks, so that the guide valve blocks, guide's valve pocket and pilot valve
Axle center it is conllinear during the motion；
Guide's valve pocket includes the first wide portion, narrow portion and the second width portion that set gradually, setting on the surface in the first width portion
The first fluting is equipped with, first fluting is corresponding with deflector hole, and from the first width portion to the narrow portion direction, described first opens
The width of slot gradually increases so that the pilot valve towards away from guide's valve seat direction movement when, it is described first fluting and water conservancy diversion
The water conservancy diversion area in hole is gradually reduced, and the medium into the upper cavity is gradually reduced；
The guide valve blocks include annular groove endoporus, are provided on the surface in the second width portion and the annular groove endoporus pair
The second fluting answered, from the second width portion to the narrow portion direction, the width of second fluting gradually increases, so that described
When pilot valve is towards away from the movement of guide's valve seat direction, the water conservancy diversion area of second fluting and the annular groove endoporus increases,
The rate-of flow of low-pressure end runner is entered by second through hole to be increased.
4. valve opening and closing mechanism according to claim 2, which is characterized in that the pilot valve include pilot valve pressing sleeve,
Supporting sleeve and lower feedback spring, the lower feedback spring are arranged between pilot valve pressing sleeve, supporting sleeve；
The pilot valve includes feedback spring pressing sleeve, feedback swivel nut and upper feedback spring, the upper feedback spring and is arranged on instead
It presents between spring press-cover, feedback swivel nut；
The feedback swivel nut is socketed in the outside of the valve rod, and the upper feedback spring is used for lower feedback spring in the epicoele
When in vivo pressure and the pressure differential of low-pressure end runner convert, prevent the piston from moving.
5. valve opening and closing mechanism according to claim 1, which is characterized in that the proportion electro-magnet includes being arranged on quiet iron
Tapered polepiece outside core, the material of the tapered polepiece is permeability magnetic material；The tapered polepiece is towards the end of the dynamic iron core
Face is the annular slope being circumferentially inclined outwardly；
The proportion electro-magnet includes spring shield and spring base, and the valve rod wears the spring base and is connected with the dynamic iron core；
The proportion electro-magnet includes balancing spring, and described balancing spring one end is against the bottom surface of the spring shield, and the other end is against institute
It states on spring base, and is arranged with the valve rod；
It is provided with annular groove on the valve rod, the proportion electro-magnet includes two symmetrically arranged semi-circular fasteners, two
The semi-circular fastener and the groove are clamped, and the fastener is used to be stuck in the bottom surface of the spring base so that the valve rod with
The spring base has identical motion state.
6. valve opening and closing mechanism according to claim 5, which is characterized in that the proportion electro-magnet includes dynamic iron core and quiet
Iron core, the dynamic iron core is towards including protrusion on the end face of the static iron core, and shown static iron core is towards the end of the dynamic iron core
Recess portion corresponding with the protrusion is provided on face.
7. valve opening and closing mechanism according to claim 6, which is characterized in that the proportion electro-magnet includes housing, institute
It states dynamic iron core and static iron core is located in the housing, the dynamic iron core is towards being provided with every magnetic on the end face of the static iron core
Pad.
8. valve opening and closing mechanism according to claim 1, which is characterized in that valve opening and closing mechanism includes stroke and indicates machine
Structure, the stroke indicating mechanism include the stroke iron core for having associated movement state with the dynamic iron core, the stroke iron core
Coil group is provided on the outside of motion path, the coil group is connected with fairing, and the fairing is used for the stroke
The voltage signal that indicating mechanism generates becomes current signal.
9. valve opening and closing mechanism according to claim 8, which is characterized in that it is single that the valve opening and closing mechanism includes control
Member, comparison unit and feedback unit, described control unit are used for piston motion described in the proportion electro-magnet input control
Travel settings information, the comparison unit are used to compare stroke detection information and the control that the stroke indicating mechanism is detected
Whether the travel settings information of unit input processed is consistent；The feedback unit is used in the stroke detection information and travel settings
When information is inconsistent, control described control unit inputs an adjustment voltage to the proportion electro-magnet, so that the stroke is examined
Measurement information is identical with travel settings information.
10. a kind of valve, which is characterized in that including valve opening and closing mechanism described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721290413.3U CN207454898U (en) | 2017-10-09 | 2017-10-09 | Valve opening and closing mechanism and valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721290413.3U CN207454898U (en) | 2017-10-09 | 2017-10-09 | Valve opening and closing mechanism and valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454898U true CN207454898U (en) | 2018-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721290413.3U Active CN207454898U (en) | 2017-10-09 | 2017-10-09 | Valve opening and closing mechanism and valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559477A (en) * | 2017-10-09 | 2018-01-09 | 鞍山电磁阀有限责任公司 | Valve opening and closing mechanism and valve |
-
2017
- 2017-10-09 CN CN201721290413.3U patent/CN207454898U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559477A (en) * | 2017-10-09 | 2018-01-09 | 鞍山电磁阀有限责任公司 | Valve opening and closing mechanism and valve |
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