CN102182859B - Electric-keeping type electric/electromagnetic dual-purpose electromagnetic head - Google Patents
Electric-keeping type electric/electromagnetic dual-purpose electromagnetic head Download PDFInfo
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- CN102182859B CN102182859B CN 201110120936 CN201110120936A CN102182859B CN 102182859 B CN102182859 B CN 102182859B CN 201110120936 CN201110120936 CN 201110120936 CN 201110120936 A CN201110120936 A CN 201110120936A CN 102182859 B CN102182859 B CN 102182859B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 156
- 230000003068 static effect Effects 0.000 claims abstract description 76
- 230000004323 axial length Effects 0.000 claims abstract description 11
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 35
- 230000005611 electricity Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- 210000003128 head Anatomy 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 210000004894 snout Anatomy 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The invention relates to an electric-keeping type electric/electromagnetic dual-purpose electromagnetic head comprising an upper electromagnetic device, a linear motor device and a lower electromagnetic device; the linear motor device is provided with a motor stator assembly and a motor rotor which are mutually matched; the electromagnetic device is provided with a coil assembly, a static iron core and a movable iron core which are matched with one another; the motor rotor and the movable iron core are axially arrayed in the order same as that respective corresponding motor stator assembly and coil assembly and are mutually connected to form a moving assembly; the upper electromagnetic device, the linear motor device and the lower electromagnetic device are provided with a common magnet shield pipe; the axial length of the moving assembly is less than the distance between the opposite head faces of the upper static iron core and the lower static iron core; and the lower static iron core is provided with a valve rod hole which axially penetrates through the lower static iron core. The electric-keeping type electric/electromagnetic dual-purpose electromagnetic head is low in electricity consumption, high in sealing effect and constant in drive power no matter what size an air gap is, and can be mainly applied to various types of electromagnetic valves, in particular to large-caliber electromagnetic valves.
Description
Technical field
The present invention relates to the moving purpose electromagnetic head of a kind of electric guarantor's formula electric electromagnetic, can be used for the particularly solenoid valve of heavy caliber, large flow of various solenoid valves.
Background technique
The existing Electrical heads that is used for solenoid valve adopts calutron, be provided with the coil, static iron core and the moving iron core that complement one another, produce magnetic field behind the coil electricity, make static iron core and the mutual adhesive of moving iron core, then magnetic force disappearance during coil blackout, dependence Returnning spring etc. resets, and static iron core and moving iron core is separated from each other, thus with the opening and closing of traveling priority about the ovable valve stem with the realization valve.The defective of this class Electrical heads is mainly manifested in: 1. behind the coil electricity, square being inversely proportional to of the suction-combining force between static iron core and the moving iron core and gap length between the two, when valve aperture during greater than 50mm, gap length can reach more than the 15mm usually, and at this moment the power of coil will could drive valve opening and closing very greatly, so cost is high, energy consumption is large, temperature rise, so the valve of the above bore of 15mm selects solenoid valve uneconomical, is difficult to promote the use of in practice; 2. the driving force of sound iron core adhesive generation can only make valve rod upwards move, and can not be to moving down, therefore its Electromagnetic Drive is unidirectional drive, effect, the band ovable valve stems such as Returnning spring need to be set to be moved down, therefore not only internal structure is complicated, but reliability and the driving force of valve rod all is restricted.
Summary of the invention
For overcoming the defects of prior art, the invention provides the moving purpose electromagnetic head of a kind of electric guarantor's formula electric electromagnetic, no matter the air gap between this Electrical heads sound iron core has much, the driving force that produces is substantially constant, and can carry out to valve the bi-directional drive of opening and closing, in addition close or opening state under can also realize that the electromagnetic driven of corresponding state keeps.
The present invention can adopt following technical proposal and any one further restriction or specific thereof:
A kind of electric guarantor's formula electric electromagnetic moves purpose electromagnetic head, be provided with Linear motor device and calutron, described Linear motor device is provided with the motor stator component and the motor that complement one another and moves son, described calutron is provided with the coil block that complements one another, static iron core and moving iron core, be provided with coil in the described coil block, described motor stator component and described coil block axially-aligned also are interconnected to fixing-assembly, and described motor moves son the put in order axially-aligned and interconnect become a moving assembly identical with described coil block with each self-corresponding described motor stator component with described moving iron core foundation.
Preferably, the quantity of described calutron can be one or two, when the quantity of described calutron is one, described calutron can be the magnetic device that powers on, also can be lower calutron, when the quantity of described calutron is two, described calutron generally includes calutron and lower calutron, the coil block of described upper calutron, static iron core and moving iron core are respectively the upper set of coils part, upper static iron core and upper moving iron core, the coil block of described lower calutron, static iron core and moving iron core are respectively the lower coil assembly, lower static iron core and lower moving iron core, described upper set of coils part be positioned at described motor stator component above, described lower coil assembly be positioned at described motor stator component below, described upper static iron core is positioned at the top of described moving assembly, described lower static iron core is positioned at the below of described moving assembly, described moving iron core be positioned at described motor move the son above, described lower moving iron core be positioned at described motor move the son below.When only being provided with upper calutron or lower calutron, behind the coil electricity of upper calutron, coil produces magnetic field and makes static iron core and upper moving iron core magnetization, can make moving assembly stably remain on a high position by the adhesive of sound iron core in the upper calutron thus, realize the electricity guarantor of opening state, guarantee the reliability and stability of valve opening, perhaps behind the coil electricity of lower calutron, coil produces magnetic field and makes lower static iron core and lower moving iron core magnetization, can make moving assembly stably remain on low level by the adhesive of sound iron core in the lower calutron thus, realize the electricity guarantor of closed condition, guarantee the reliability and stability of valve closing state and form enough sealings, and on, lower calutron arranges simultaneously, can make moving assembly all be able to electricity when high-order and low level protects, realize that thus valve can both stablize in opening state and closed condition, and form enough sealings in off position the time.Therefore, can select accordingly according to the actual demand of valve.
Preferably, described fixing-assembly is provided with axial plunger tube hole, described plunger tube is equipped with shared plunger tube on the hole, when the quantity of described calutron is two, described upper static iron core is fixedly mounted on the top of the inner chamber of described plunger tube, described lower static iron core is fixedly mounted on the bottom of the inner chamber of described plunger tube, on described in described plunger tube of described moving assembly between static iron core and the lower static iron core, and with the inwall Spielpassung of described plunger tube, to allow moving assembly in described plunger tube, to move up and down, the axial length of described moving assembly is less than the distance between the opposing end surface of described upper static iron core and lower static iron core, form thus and be positioned at moving assembly and upper, air gap between the lower static iron core, position or the distribution mode of this air gap change along with the movement of moving assembly, when described moving assembly is in a high position, described air gap is between the upper-end surface of the lower end surface of described moving assembly and described lower static iron core, when described moving assembly is in low level, described air gap the upper-end surface of described moving assembly and described between the lower end surface of static iron core, the axial overall length of described air gap is the maximum moving distance of described moving assembly.
Preferably, can be provided with the valve rod hole that axially runs through on the described lower static iron core, in order to the upper end of valve rod is fixedly connected on the lower end of described lower moving iron core, valve rod passes the valve rod hole on the described lower static iron core, extend to the below of lower static iron core, can move up and down by moving assembly (lower moving iron core) band ovable valve stem.
Preferably; described upper set of coils part can also comprise the upper magnet case that is the housing shape; the coil of described upper set of coils part is upper coil; be fixedly mounted in the described upper magnet case; described motor stator component can comprise motor stator and motor housing; described motor stator is fixedly mounted in the described motor housing; described lower coil assembly can also comprise the lower magnet case that is the housing shape; the coil of described lower coil assembly is lower coil; be fixedly mounted in the described lower magnet case; not only form thus the shell protection of coil (comprising motor stator), but also form corresponding magnetic circuit by upper magnet case and lower magnet case.
Preferably, described upper magnet case, upper coil, upper static iron core, upper moving iron core, motor housing, motor stator, motor moves son, lower magnet case, lower coil, lower static iron core and lower moving iron core all adopt symmetrical agent structure, be generally cylindrical or cylindrical shape, its each axis of symmetry is overlapped, with simplified structure, improve transmission performance, convenient processing and assembling, described upper magnet case, described motor housing and described lower magnet case are right after vertically successively, to reduce volume and to improve the integrity of fixing-assembly, described moving iron core, described motor moves son and described lower moving iron core is right after vertically successively, to reduce volume and to improve the integrity of moving assembly.
Preferably; described moving assembly can also comprise protecting jacket in a tubular form; described moving iron core, motor move son and lower moving iron core is fixedly mounted in the described protecting jacket; shell take protecting jacket as moving assembly and installation are basic thus; be conducive to improve moving assembly integrity, intensity and wear resistance, the minimizing fault also improves working life.The upper and lower end face of described protecting jacket is concordant with the lower end surface of the upper-end surface of described moving iron core and described lower moving iron core respectively; to avoid unnecessary volume; the outer side surface of described protecting jacket consists of the outer side surface of described moving assembly; usually should have corresponding degree of finish and antiwear characteristic; the external diameter of described protecting jacket should be slightly less than the internal diameter of described plunger tube, with the Spielpassung between the inwall of realizing described moving assembly and described plunger tube.
Preferably, the main body profile of described upper set of coils part, motor stator component and lower coil assembly is cylindrical, and the appearance profile of described upper coil, motor stator and lower coil is also cylindrical, to improve electromagnetic property, reduce volume and materials consumption, and convenient the use.The external diameter of described upper set of coils part and described lower coil assembly and axial length are all less than external diameter and the axial length of described motor stator component, the external diameter of described upper coil and described lower coil and axial length are all less than external diameter and the axial length of described motor stator, the power of described electric machine and calutron can reasonably be set thus, under the prerequisite that guarantees the valve normal operation, the power consumption of avoiding as much as possible and volume.
Preferably; described moving iron core and lower moving iron core move sub fastening by screw or bolt and nut with described motor respectively; with strengthen described on; lower moving iron core moves join strength between the son with described motor; improve the whole shape of described moving assembly; and simple in structure; it is convenient to implement; the upper end cylindrical of described moving iron core and the lower end cylindrical of described lower moving iron core weld with the top and bottom of described protecting jacket respectively; the upper end cylindrical of described upper static iron core and the lower end cylindrical of described lower static iron core weld with the top and bottom of described plunger tube respectively; guaranteeing to connect under the firm prerequisite thus, allowing to form relevant plane or improve the planeness on relevant plane by simple mechanical grinding mode.
Preferably, the bottom of described plunger tube passes and to downward-extension from the bottom opening in described plunger tube hole, consists of cylindrical shoulder structure with the cylindrical of described lower magnet case, the shoulder location when forming with other parts assemblings of valve.The upper wall inboard of the upper end of described plunger tube and described upper magnet case joins, the top of described upper calutron is provided with described upper magnet case is fastened on fastening with screw assembly or bolt and nut component on the described upper static iron core, is equipped with back-up ring in described screw assembly or the bolt and nut component.During assembling with the corresponding construction location and installation of described cylindrical shoulder structure and valve gap (or other parts on the valve), the lower end cylindrical of plunger tube can weld with the appropriate section of described valve gap, for example adopt and have simultaneously the continuous weld that is connected and fixed with sealing characteristics, the screw or the nut (lower end of bolt is fixedly connected with on the described upper static iron core) that screw in described screw assembly or the bolt and nut component just can be by back-up ring with described upper set of coils parts, motor stator component and lower coil assembly tighten together, and are very easy to thus the installation of valve.
The invention has the beneficial effects as follows: owing to having adopted the power plant of Linear motor device and two kinds of different qualities of calutron, described Linear motor device adopts the basic structure of linear electric motor, working principle work according to linear electric motor, therefore can make motor move sub-linear reciprocation by the change step mode moves, do up and down traveling priority by the valve rod of unified moving assembly band movable valve thus, realization is to valve opening and the bi-directional drive of closing, and saved the Returnning spring under the prior art, simplify the structure, improved the reliability of valve, guaranteed also that simultaneously driving force not because the size of air gap between the sound iron core changes, is adapted to the driving requirement of large bore valves; Because can be according to the characteristics of valve, select suitable step mode, make Linear motor device in for example opening and closing process and have respective direction driving force calutron and switch on simultaneously, to form enough strong driving force, and under unlatching or closed condition, make the Linear motor device no electric circuit, and switch on only for the calutron with respective direction driving force, by the suction-combining force between the sound iron core of respective electrical magnetic device valve is remained under this unlatching or the closed condition, realized the electricity guarantor of valve opening and closed condition, reliability and the sealability of work have been improved, also the power consumption owing to calutron under the attracting state is very little simultaneously, effectively is reduced to thus the unlatching or the required power consumption of closed condition that keep valve; Owing to can also require to select multiple driving mode according to the keying of valve, for example only select Linear motor device, only select calutron or use simultaneously Linear motor device and calutron, realized thus multiple driving mode electronic, electromagnetic driven.
The present invention can be with ovable valve stem to do up and down traveling priority, is adapted to solenoid valve, particularly bore that valve rod or other driving component linear reciprocation move greater than the big caliber electromagnetic valve valve of 50mm.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The present invention is adapted to multiple solenoid valve, can do up and down traveling priority with the valve rod (or other driving components) of moving electromagnetic valve, with the unlatching that realizes valve, close and valve can be remained on the opening and closing state.
The valve (main body) that the present invention adapts to can adopt various ways and structure, for example, it can be the valve that only is provided with the main valve sealing pair, directly drive the opening and closing of the Sealing realization valve of main valve sealing pair by valve rod, it also can be the valve that is provided with main valve sealing pair and secondary valve seal pair, the Sealing that drives secondary valve seal pair by valve rod is realized the opening and closing of secondary valve, and then the Sealing that the MEDIA FLOW by valve internal promotes the main valve sealing pair moves, realize the opening and closing of valve, described valve rod, the main valve sealing pair, secondary valve seal pair and valve body can adopt various prior aries or other suitable technology.
Below, in conjunction with Fig. 1, the present invention will be described in detail with the example that is applied as of the present invention on a kind of valve.
In the embodiment shown in fig. 1, adopting solenoid valve of the present invention mainly to move son 13, upper moving iron core 14, lower moving iron core 12 and protecting jacket 24 by valve body 9, valve cup 7, valve rod 8, valve gap 10, plunger tube 25, lower coil 27, motor stator 22, upper coil 20, upper static iron core 16, lower static iron core 11, motor forms.Described valve body 9 inner chambers are provided with valve seat (main valve valve seat), described valve cup 7 lower ends are provided with Sealing (main valve Sealing), described valve body 9 valve seats and valve cup 7 Sealings form main valve sealing pair 4, after main valve sealing pair 4 is opened, then allow MEDIA FLOW to flow to outlet plenum 5 by the valve seat mesopore of snout cavity 31 main valve sealing pairs.The end of described valve cup, be provided with the pod apertures 2 that is communicated with part in described cavity of resorption 1 and the lumen (part in the valve cup), and the top of described pod apertures 2 is auxiliary-seat, consists of secondary valve seal pair 3 with the secondary valve seal of valve rod 8 lower ends.Described valve gap 10 is connected with valve body 9 usefulness engage thread; described valve gap 10 upper ends and plunger tube 25 usefulness are welded to connect; the top of described upper static iron core 16 in plunger tube 25 inner chambers; with being welded to connect; described lower coil 27 is contained in the lower magnet case 26; described lower coil 27 and lower magnet case 26 form the lower coil assembly; its endoporus and plunger tube 25 external diameters match; consist of the part in plunger tube hole; the lower end of described lower magnet case 26 (lower wall outer surface) and the upper-end surface of described valve gap 10 contact; described motor stator 22 is contained in the motor housing 21; motor stator 22 and motor housing 21 form motor stator component; its endoporus and plunger tube 25 external diameters match; also consist of the part in plunger tube hole; the upper end of the lower end of described motor housing 21 and described lower coil assembly contacts; described upper coil 20 is contained in the magnet case 19; described upper coil 20 and upper magnet case 19 form the upper set of coils part; its endoporus and plunger tube 25 external diameters match; also consist of the part in plunger tube hole; the lower end of described upper conductor (outer surface of lower wall) and the upper end of motor stator component contact; in described upper set of coils part upper end ring washer 17 is housed; with nut 18 ring washer is fixed on the upper static iron core 16; because lower end and the described valve gap of described plunger tube are welded to connect; thus by precession nut 18; cooperatively interact with the upper-end surface of described valve gap; jointly with described upper set of coils part; motor stator component and lower coil assembly are clamped together; realize described upper set of coils part; between motor stator component and the lower coil assembly be mutually permanently connected and the installation of this Electrical heads on valve body fixed; described valve cup 7 is positioned at the inner chamber of described valve gap 10; and by with the gap fiting mode of described valve gap; can move up and down with respect to valve gap; the bottom of described valve rod 8 is arranged in the inner chamber of valve cup 7; the top of valve rod 8 is positioned at the endoporus of described lower static iron core 11; the upper end of described valve rod 8 links to each other with described lower moving iron core 12; described valve rod 8 can move (Spielpassung) by easy on and off in valve cup 7 and lower static iron core 11 endoporus; described upper static iron core 16 and lower static iron core 11 are contained on plunger tube 25 endoporus; in the lower end; and be welded to connect; on described between static iron core 16 and the lower static iron core 11; in described plunger tube 25 endoporus moving assembly is housed; described moving assembly moves son 13 by motor; upper moving iron core 14; lower moving iron core 12 and protecting jacket 24 form; described motor moves sub 13 lower ends lower moving iron core 12 is housed; moving iron core 14 is equipped with in the upper end; connect with bolt between them; described motor moves son 13; upper moving iron core 14 and the outer ring of lower moving iron core 12 and the endoporus of protecting jacket 24 match; described protecting jacket 24 and upper moving iron core 14; lower moving iron core 12 usefulness are welded to connect, and described moving assembly can freely move up and down plunger tube 25 is interior.
Working principle of the present invention or working procedure are:
Described motor stator 22; upper coil 20; when lower coil 27 does not have electricity; at moving assembly; under the Action of Gravity Field of valve rod 8 and valve cup 7; moving assembly and valve rod move down into extreme lower position; so the secondary valve seal of valve rod 8 lower ends and the secondary valve base of valve cup 7 contact and certain extruding force are arranged; the Sealing of valve cup 7 lower ends and the valve seat on the valve body 9 contact and certain extruding force are arranged; this moment, medium entered valve body from the snout cavity 31 that is positioned at valve body 9 entrance points; along valve body 9; gap between the valve gap 10 flows to the outer part 6 of lumen; damping hole 30 through valve cup 7; gap between valve cup 7 and the valve gap 10 flows to the middle part 29 of lumen and the upper part 28 of lumen; owing to being Spielpassung between valve rod 8 and the lower static iron core 11; it also is Spielpassung between protecting jacket 24 and the plunger tube 25; so the medium in the middle part 29 of lumen and the upper part 28 of lumen can flow to air gap 15 by above-mentioned gap; along with time lengthening; at snout cavity 31; the outer part 6 of lumen; the middle part 29 of lumen; the upper part 28 of lumen and the pressure medium in the air gap 15 reach maximum value; because the outlet plenum 5 of valve body 9 links to each other with lower pipe fitting; so the pressure medium of outlet plenum 5 and cavity of resorption 1 is zero or very low; so valve cup 7 and valve rod 8 move down under the poor effect of pressure medium; and the lower end of valve cup 7 by the valve seat holder; the lower end of valve rod 8 by the auxiliary-seat holder; so main valve sealing pair 4; secondary valve seal pair 3 is at valve rod 8; valve cup 7 is issued to sealing, valve closing with gravity and the poor effect of pressure medium of moving assembly.
When the difference of the pressure medium of the pressure medium of snout cavity 31 and cavity of resorption 1 little during to certain value, because pressure medium is poor not, the sealed extruded power of main valve sealing pair 4 and secondary valve seal pair 3 can not realize desired sealing not, the secondary appearance of main valve sealing pair 4 and secondary valve seal is leaked, reach sealing and then must add extruding force to corresponding sealing pair, so give lower coil 27 energisings, produce magnetic field after lower coil 27 energisings, under magnetic line of force effect, lower moving iron core 12 is by lower static iron core 11 adhesives, produce certain suction between lower moving iron core 12 and the lower static iron core 11, this suction dwindles along with distance between lower moving iron core 12 and the lower static iron core 11 and increases, and under this suction, the sealed extruded power of main valve sealing pair 4 and secondary valve seal pair 3 rises, main, secondary valve seal pair reaches sealing, has guaranteed closing of valve.
When valve will be opened, give motor stator 22 and 20 energisings of upper coil, give lower coil 27 outages, along with lower coil 27 outages, suction disappears between lower moving iron core 12 and the lower static iron core 11, produce magnetic field after motor stator 22 energisings, make motor move son 13 and produce induction current, induction current produces the magnetic force that moves up under magnetic fields, produce magnetic field after upper coil 20 energisings, produce suction between upper static iron core 16 and the upper moving iron core 14, under mobile magnetic force and suction, moving assembly band ovable valve stem 8 is pulled upwardly, the lower end of valve rod 8 is with secondary valve seal, secondary valve seal is owing to the secondary 3 upper and lower medium pressure difference effects of secondary valve seal are pressed on the secondary valve base, mobile magnetic force on acting on valve rod 8 and suction make a concerted effort to surpass the sealed extruded power of secondary valve seal pair 3 time, the secondary valve seal of valve rod band is pulled upwardly, secondary valve is opened, after secondary valve is opened, the middle part 29 of lumen, the upper part 28 of lumen and the medium in the air gap 15 flow to the cavity of resorption 1 of valve body 9 by secondary valve base and pod apertures 2, then the outlet plenum 5 through valve body 9 flows out valve body 9, while is along with the outflow of medium, also some medium is through damping hole 30, valve cup 7 and valve gap 10 gaps flow to part 29 in the lumen, but the passage that medium flows out is large, the passage that flows to is little, so behind certain hour, the middle part 29 of lumen, upper part 28 and the pressure medium in the air gap 15 of lumen are lower than the pressure medium in the outer part 6 of lumen, in this pressure difference, under the mobile magnetic force of valve rod 8 and the acting in conjunction of suction, move on the valve cup 7, air gap 15 disappears, upper moving iron core 14 and 16 adhesives of upper static iron core, main valve is opened, and valve opening is complete.
Behind the valve opening, under the control of control system, motor stator 22 outages, upper coil 20 continues energising, valve rod 8 and moving assembly guarantee to be in the extreme higher position under the suction of upper coil 20, upper moving iron core 14 and upper static iron core 16 are in attracting state, and valve keeps opening state.
When valve will be closed, give upper coil 20 outages, give motor stator 22, lower coil 27 energisings are along with upper coil 20 outages, suction disappears between upper static iron core 16 and the upper moving iron core 14, the threephase AC of logical threephase AC single spin-echo when passing to valve opening to motor stator 22, motor stator produces magnetic field, under this shifting magnetic field effect, motor moves son 13 and produces induction current, and induction current produces under magnetic fields and moves down magnetic force; Produce magnetic field after lower coil 27 energisings, produce suction between lower static iron core 11 and the lower moving iron core 12.Under gravity, mobile magnetic force and suction acting in conjunction, moving assembly band ovable valve stem 8 moves down.The lower end of valve rod 8 is provided with Sealing, along with valve rod 8 moves down, Sealing and the auxiliary-seat of valve rod 8 lower ends are contacted, lower end seal and the main valve valve seat of valve cup 7 contact, from gravity, motor moves son 13 and moves under the suction acting in conjunction of magnetic force and lower coil 27, overcoming valve rod 8 moves surface friction drag and makes main valve sealing pair 4, secondary valve seal pair 3 reaches sealing, this moment, medium was by damping hole 30, the gap of valve cup 7 and valve gap flows to the middle part 29 of lumen, the upper part 28 of lumen and air gap 15, make the middle part 29 of lumen, the upper part 28 of lumen and the pressure medium in the air gap 15 rise gradually, simultaneously the medium in the cavity of resorption 1 of valve body 9 through outlet plenum 5 to outflow, pressure medium in the cavity of resorption 1 of valve body 9 descends gradually, so the upper and lower medium pressure difference of main valve sealing pair 4 and secondary valve seal pair 3 forms gradually, under the poor effect of these pressure mediums, main valve, the secondary extruding force of secondary valve seal is larger, better tightness, valve closing, behind the valve closing, through control system, motor stator 22 outages, lower coil 27 continues energising, valve rod 8 and moving assembly guarantee to be in extreme lower position under the suction of lower coil 27, make the sealing force of main valve sealing pair and secondary valve seal pair keep certain value, lower moving iron core 12 and lower static iron core 11 are in attracting state, and valve keeps closed condition.
With respect to prior art, major advantage of the present invention comprises:
(1) it is relevant with power of motor that motor moves son 13 mobile magnetic force, and irrelevant with its running length, so it is irrelevant that motor moves mobile magnetic force and air gap 15 sizes of son 13, the bore of tube valve does not have much, air gap how long to have, and valve rod moves the open and close that son can both be realized valve under driving at motor.
(2) motor moves and has moved driving force on the son, and moving down also has driving force, so have two driving effects.
(3) solenoid valve being difficult for making large bore valves becomes large smaller diameter valve and can both do.
The present invention alleged " on ", D score is relative position, only be used for the facility in the statement, be not used in the actual restriction of using the orientation of this Electrical heads, because can driving and can adopt separately or cooperate by Linear motor device, the valve rod among the present invention adopt the power-on and power-off magnetic device to drive, the Gravitative Loads direction that can overcome or remedy thus because using the orientation to cause changes the negative effect that brings, but as optimal way, can take described in the specification of the present invention " on ", the upper and lower of D score direction in actual the use to.
Claims (10)
1. electric guarantor's formula electric electromagnetic moves purpose electromagnetic head, it is characterized in that being provided with Linear motor device and calutron, described Linear motor device is provided with the motor stator component and the motor that complement one another and moves son, described calutron is provided with the coil block that complements one another, static iron core and moving iron core, be provided with coil in the described coil block, described motor stator component and described coil block axially-aligned also are interconnected to fixing-assembly, and described motor moves son the put in order axially-aligned and interconnect become a moving assembly identical with described coil block with each self-corresponding described motor stator component with described moving iron core foundation.
2. electric guarantor's formula electric electromagnetic as claimed in claim 1 moves purpose electromagnetic head, the quantity that it is characterized in that described calutron is one or two, when the quantity of described calutron is one, described calutron is upper calutron or lower calutron, when the quantity of described calutron is two, described calutron comprises calutron and lower calutron, the coil block of described upper calutron, static iron core and moving iron core are respectively the upper set of coils part, upper static iron core and upper moving iron core, the coil block of described lower calutron, static iron core and moving iron core are respectively the lower coil assembly, lower static iron core and lower moving iron core, described upper set of coils part be positioned at described motor stator component above, described lower coil assembly be positioned at described motor stator component below, described upper static iron core is positioned at the top of described moving assembly, described lower static iron core is positioned at the below of described moving assembly, described moving iron core be positioned at described motor move the son above, described lower moving iron core be positioned at described motor move the son below.
3. electric guarantor's formula electric electromagnetic as claimed in claim 2 moves purpose electromagnetic head, the quantity that it is characterized in that described calutron is two, described fixing-assembly is provided with axial plunger tube hole, described plunger tube is equipped with shared plunger tube on the hole, described upper static iron core is fixedly mounted on the top of the inner chamber of described plunger tube, described lower static iron core is fixedly mounted on the bottom of the inner chamber of described plunger tube, on described in described plunger tube of described moving assembly between static iron core and the lower static iron core, and with the inwall Spielpassung of described plunger tube, the axial length of described moving assembly is less than the distance between the opposing end surface of described upper static iron core and lower static iron core.
4. the moving purpose electromagnetic head of electric guarantor's formula electric electromagnetic as claimed in claim 3 is characterized in that described lower static iron core is provided with the valve rod hole that axially runs through.
5. electric guarantor's formula electric electromagnetic as claimed in claim 4 moves purpose electromagnetic head, it is characterized in that described upper set of coils part also comprises the upper magnet case that is the housing shape, the coil of described upper set of coils part is upper coil, be fixedly mounted in the described upper magnet case, described motor stator component comprises motor stator and motor housing, described motor stator is fixedly mounted in the described motor housing, described lower coil assembly also comprises the lower magnet case that is the housing shape, the coil of described lower coil assembly is lower coil, is fixedly mounted in the described lower magnet case.
6. electric guarantor's formula electric electromagnetic as claimed in claim 5 moves purpose electromagnetic head, it is characterized in that described upper magnet case, upper coil, upper static iron core, upper moving iron core, motor housing, motor stator, motor move son, lower magnet case, lower coil, lower static iron core and lower moving iron core and all adopt symmetrical agent structure, its each axis of symmetry is overlapped, described upper magnet case, described motor housing and described lower magnet case are right after vertically successively, and described moving iron core, described motor move son and described lower moving iron core is right after vertically successively.
7. such as claim 3; 4; 5 or 6 described electric guarantor's formula electric electromagnetics move purpose electromagnetic head; it is characterized in that described moving assembly also comprises protecting jacket in a tubular form; described moving iron core; motor moves son and lower moving iron core is fixedly mounted in the described protecting jacket; described protecting jacket upper; the lower end surface is concordant with the lower end surface of the upper-end surface of described moving iron core and described lower moving iron core respectively; the outer side surface of described protecting jacket consists of the outer side surface of described moving assembly; the external diameter of described protecting jacket is slightly less than the internal diameter of described plunger tube, with the Spielpassung between the inwall of realizing described moving assembly and described plunger tube.
8. electric guarantor's formula electric electromagnetic as claimed in claim 7 moves purpose electromagnetic head, the main body profile that it is characterized in that described upper set of coils part, motor stator component and lower coil assembly is cylindrical, the appearance profile of described upper coil, motor stator and lower coil is also cylindrical, the external diameter of described upper set of coils part and described lower coil assembly and axial length be all less than external diameter and the axial length of described motor stator component, and the external diameter of described upper coil and described lower coil and axial length are all less than external diameter and the axial length of described motor stator.
9. electric guarantor's formula electric electromagnetic as claimed in claim 8 moves purpose electromagnetic head; it is characterized in that described moving iron core and lower moving iron core move sub fastening by screw or bolt and nut with described motor respectively; the upper end cylindrical of described moving iron core and the lower end cylindrical of described lower moving iron core weld with the top and bottom of described protecting jacket respectively, and the upper end cylindrical of described upper static iron core and the lower end cylindrical of described lower static iron core weld with the top and bottom of described plunger tube respectively.
10. electric guarantor's formula electric electromagnetic as claimed in claim 9 moves purpose electromagnetic head, the bottom that it is characterized in that described plunger tube passes and to downward-extension from the bottom opening in described plunger tube hole, consist of cylindrical shoulder structure with the cylindrical of described lower magnet case, the upper wall inboard of the upper end of described plunger tube and described upper magnet case joins, the top of described upper calutron is provided with described upper magnet case is fastened on fastening with screw assembly or bolt and nut component on the described upper static iron core, is equipped with back-up ring in described screw assembly or the bolt and nut component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110120936 CN102182859B (en) | 2011-05-11 | 2011-05-11 | Electric-keeping type electric/electromagnetic dual-purpose electromagnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110120936 CN102182859B (en) | 2011-05-11 | 2011-05-11 | Electric-keeping type electric/electromagnetic dual-purpose electromagnetic head |
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| Publication Number | Publication Date |
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| CN102182859A CN102182859A (en) | 2011-09-14 |
| CN102182859B true CN102182859B (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110120936 Expired - Fee Related CN102182859B (en) | 2011-05-11 | 2011-05-11 | Electric-keeping type electric/electromagnetic dual-purpose electromagnetic head |
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| CN (1) | CN102182859B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106481820A (en) * | 2015-08-28 | 2017-03-08 | 河南航天液压气动技术有限公司 | A kind of elastic force guiding mechanism and the magnetic valve using the structure |
| CN114321459B (en) * | 2020-09-30 | 2023-12-05 | 浙江三花智能控制股份有限公司 | Gas proportional valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11132353A (en) * | 1997-10-27 | 1999-05-21 | Kayaba Ind Co Ltd | Electromagnetic proportional pressure control valve |
| JP4012792B2 (en) * | 2002-09-17 | 2007-11-21 | 日信工業株式会社 | solenoid valve |
| CN201344282Y (en) * | 2009-03-15 | 2009-11-11 | 蒋可贞 | Dished diaphragm type universal solenoid valve with large flow capacity |
| CN201377590Y (en) * | 2009-03-30 | 2010-01-06 | 王树先 | Self-holding electromagnetic valve |
| CN101656136B (en) * | 2009-04-29 | 2013-02-27 | 陈国顺 | Energy saving magnetic head and control method thereof |
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| CN102182859A (en) | 2011-09-14 |
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