CN205371758U - Electromagnetic ball valve - Google Patents
Electromagnetic ball valve Download PDFInfo
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- CN205371758U CN205371758U CN201521065308.0U CN201521065308U CN205371758U CN 205371758 U CN205371758 U CN 205371758U CN 201521065308 U CN201521065308 U CN 201521065308U CN 205371758 U CN205371758 U CN 205371758U
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- solenoid ball
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- Magnetically Actuated Valves (AREA)
Abstract
The application discloses electromagnetic ball valve, its valve body include the interface channel of inlet, liquid outlet, control oil duct and intercommunication inlet and liquid outlet, and wherein the ball core is installed in interface channel, and interface channel's toper inner wall has the spherical connecting portion of round and ball core outer wall matching, and the ball core forms the face seal with the spherical connecting portion. These connecting portion can be sealed with the laminating of the surface of spherical case, and this seal structure's sensitivity, leakproofness, reliability and durability all relative prior art improve to some extent, can satisfy ordinary pressure, high pressure, superhigh pressure super superhigh pressure hydraulic system complete sets's actual demand and technical requirement even.
Description
Technical field
The application relates to a kind of control valve class, especially relates to a kind of Solenoid ball valve.
Background technology
Controlling valve class is one of main prototype part of hydraulic system, and wherein Solenoid ball valve is the one controlling valve class.Solenoid ball valve is exactly spool is spherical solenoid electric valve, and it is except possessing all features of electromagnetic valve, also has its some exclusive characteristics.It promotes steel ball to realize the ball solenoid directional control valve of oil circuit break-make with the thrust of electric magnet for driving force, it is adaptable to the two-way plug-in valve assembly being working media with various mineral oil, to realize leak free pilot control.When meeting blood pressure lowering discharge characteristic and requiring, it is possible to as the direction controlling of other actuators.Supertension Solenoid ball valve therein is mainly used as and directly controls the unlatching of fluid, stopping and flow direction.
Existing Solenoid ball valve is mainly core and valve body (valve seat) cooperation of metal, its contact or collision are same materials or close to material, this allow for core easily wear and tear, localized bumps and disabling damage, it is crucial that its sealing pair is a kind of linear sealing, this linear sealing contact surface is narrow carefully, seals grade low, poorly sealed, easily cause pressure regulation malfunctioning so that single spool is easily damaged.
The restriction of structure is sealed so that it cannot adapt to the requirement of high pressure, Superhigh Pressure Hydraulic System, thus causing lacking the overflow valve product suitable in high pressure, Superhigh Pressure Hydraulic System on the market at present just because of existing Solenoid ball valve.
Summary of the invention
The application provides a kind of novel Solenoid ball valve.
The Solenoid ball valve that the application provides, including:
Valve body, described valve body includes the interface channel of inlet, liquid outlet, control oil duct and connection inlet and liquid outlet；
Piston bush, described piston bush is arranged on valve body, and it has secondary piston chamber；
Blind nut, described blind nut is arranged on valve body, and it has back piston chamber, and described secondary piston chamber and back piston chamber are respectively communicated with the both sides in interface channel, and described inlet connects by controlling oil duct with secondary piston chamber；
Core, described core is arranged in interface channel, and the conical inboard wall of described interface channel has the spheric connecting portion that a circle mates with core outer wall, and described core forms face seal with spheric connecting portion；
Secondary piston, described secondary piston is arranged on secondary piston intracavity, and it acts on one end of core, for core pushes away the spheric connecting portion of interface channel；
Back piston, described back piston is arranged on back piston intracavity, and it acts on the other end of core, for core is pushed to the spheric connecting portion of interface channel；
And electromagnet assembly, described electromagnet assembly includes electric magnet and drive mechanism, and the outfan of described drive mechanism can drive secondary piston to promote core, opens interface channel.
As the further improvement of described Solenoid ball valve, described core is that the spy that special ceramic material is made makes pottery ball.
As the further improvement of described Solenoid ball valve, described valve body adopts steel alloy or special stainless steel to make.
As the further improvement of described Solenoid ball valve, being additionally provided with sealing member between piston bush and secondary piston, described sealing member is the sealing member that polyurethane material is made.
As the further improvement of described Solenoid ball valve, the secondary piston of φ 6-φ 10 latus rectum and the fit clearance of piston bush are 0.050mm-0.100mm.
As the further improvement of described Solenoid ball valve, the secondary piston of φ 12-φ 18 latus rectum and the fit clearance of piston bush are 0.060mm-0.130mm.
As the further improvement of described Solenoid ball valve, the secondary piston of φ 20-φ 25 latus rectum and the fit clearance of piston bush are 0.080mm-0.160mm.
As the further improvement of described Solenoid ball valve, between described back piston and blind nut, it is provided with the elastic component for promoting back piston to move to core.
As the further improvement of described Solenoid ball valve, described elastic component is spring.
As the further improvement of described Solenoid ball valve, described drive mechanism is lever, and described electric magnet acts on one end of lever, and the other end of described lever acts on secondary piston.
The application provides the benefit that:
The Solenoid ball valve that the application provides, its valve body includes the interface channel of inlet, liquid outlet, control oil duct and connection inlet and liquid outlet, wherein core is arranged in interface channel, the conical inboard wall of interface channel has the spheric connecting portion that a circle mates with core outer wall, and core forms face seal with spheric connecting portion.This connecting portion can with the outer surface gluing, sealing of spherical valve core, the susceptiveness of this sealing structure, sealing, reliability and durability all hinge structure increase, and can meet actual demand and the technology requirement of the even super Superhigh Pressure Hydraulic System complete set of equipments of normal pressure, high pressure, supertension.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the application Solenoid ball valve；
Fig. 2 is that in Fig. 1, core and interface channel coordinate schematic diagram；
Fig. 3 is the spheric connecting portion schematic diagram of interface channel in Fig. 2.
Detailed description of the invention
The present invention is described in further detail in conjunction with accompanying drawing below by detailed description of the invention.The application can realize with multiple different form, however it is not limited to the embodiment described by the present embodiment.The purpose providing detailed description below is easy for present disclosure is become apparent from thorough explanation, and wherein the words of the indicating position such as upper and lower, left and right is only for shown structure position in respective figure.
But, those skilled in the art may be aware that one or more detail describes and can be omitted, or can also adopt other method, assembly or material.In some instances, some embodiments do not describe or are not described later in detail.
Additionally, technical characteristic described herein, technical scheme can also be combined in any suitable manner in one or more embodiments.For a person skilled in the art, it is easy to step or the operation order of understanding the method relevant with embodiment provided herein can also change.Therefore, any order in drawings and Examples is merely illustrative purposes, does not imply that requirement in a certain order, requires unless expressly stated according to a certain order.
Embodiment one:
The present embodiment provides a kind of Solenoid ball valve.
Refer to Fig. 1, this Solenoid ball valve includes valve body 100, piston bush 200, blind nut 300, core 400, secondary piston 500, back piston 600 and electromagnet assembly.
This valve body 100 includes inlet P, liquid outlet T, controls oil duct 110 and the interface channel 120 of connection inlet P and liquid outlet T.Piston bush 200 is arranged on valve body 100, and it has secondary piston chamber, is used for installing secondary piston 500, and this secondary piston chamber communicates with interface channel 120.Blind nut 300 is arranged on valve body 100, and it has back piston chamber, is used for installing back piston 600, and it communicates with interface channel 120.Secondary piston chamber and back piston chamber are respectively communicated with in the both sides of interface channel 120, and inlet P connects by controlling oil duct 110 with secondary piston chamber.
Refer to Fig. 2 and 3, core 400 is arranged in interface channel 120, and the conical inboard wall 121 of interface channel 120 has the spheric connecting portion 122 that a circle mates with core 400 outer wall, and core 400 and spheric connecting portion 122 form face seal.
Refer to Fig. 1, secondary piston 500 is arranged on secondary piston intracavity, and it acts on one end of core 400, for core 400 pushes away the spheric connecting portion 122 of interface channel 120.Back piston 600 is arranged on back piston intracavity, and it acts on the other end of core 400, for core 400 is pushed to the spheric connecting portion 122 of interface channel 120.This connecting portion 122 can with the outer surface gluing, sealing of core 400, the susceptiveness of this sealing structure, sealing, reliability and durability all hinge structure increase, and can meet actual demand and the technology requirement of the even super Superhigh Pressure Hydraulic System complete set of equipments of normal pressure, high pressure, supertension.
Refer to Fig. 1, electromagnet assembly includes electric magnet 710 and drive mechanism, and the outfan of drive mechanism can drive secondary piston 500 to promote core 400, opens interface channel 120.
Specifically, refer to Fig. 1, this drive mechanism is lever 720, valve body 100 can arrange bonnet 730 cover cap and live lever 720.Electric magnet 710 acts on one end of lever 720, and the other end of lever 720 acts on secondary piston 500.
In order to make back piston 600 to reset in time, it is provided with the elastic component 800 for promoting back piston 600 to move to core 400 between back piston 600 and blind nut 300, for instance spring.
Further, about this spheric connecting portion 122, refer to Fig. 3, the radius of curvature of the camber line on connecting portion longitudinally (i.e. fluid media (medium) turnover direction) cross section is identical with the radius of core 400.
Shown connecting portion can be made up of following methods, and method includes:
Connecting portion may select core 400 squeeze flow passage 120 inwall and makes.
Specifically, core 400 is imposed pretightning force, make core 400 compress the conical inboard wall on interface channel 120, form the connecting portion fitted with core 400 outer surface.
Wherein, the hardness of core 400 material is higher than the hardness of valve body 100 material, such as core 400 adopts special ceramic material (being also called special cermacis, fine ceramics) to make, the special ceramic material that the present embodiment employing is made such as aluminium oxide, zirconium oxide, silicon nitride or carborundum etc..This spy's ceramic material can adopt existing high accuracy (more than circularity 10G), high rigidity and high tenacity spy's Ceramic Balls, or, in other embodiments, core 400 can also adopt the core such as hard alloy 400 material, and the material that valve body 100 then adopts hardness relatively low accordingly is made.When core 400 selects special ceramic material, valve body 100 adopts steel alloy or special stainless steel to make.
And in the process making connecting portion, particularly, producing principle is as follows:
Press acts on core 400, and press large-tonnage superelevation unit pressure is converted into clamping sphere and the pretightning force of the conical surface, under the effect of pretightning force, and ball surface and bellmouth inwall is bonded to each other, mutually compress, gradually form contact surface.
Macroscopic view, two faces are after initial contact, and what can form an arc is tightly connected portion.But from microcosmic, metal surface is all made up of many difform hill and trench, and initial contact only occurs in the small part of apparent area, the close contact of surface contact to be realized, it is necessary to a process compressed gradually with break-in.Adhesion theory according to surface contact, under simple load effect, the contact stress on real contact point is enough to produce plastic deformation, forms facet contact, until contact surface increases to and bears whole load.
High accuracy, the special ceramic material yield strength of high rigidity that the application adopts are very big, it is difficult to surrender, and conical surface material (alloy, special stainless steel) yield strength is relatively low, it is easy to plastic deformation occurs.
For sealing for contact, it is ensured that the reliability of sealing, the microscopic voids between sphere and the conical surface should be made to be wholly absent.Reach this effect, will allow softer material (alloy, special stainless steel) surface entirety that plastic deformation fully occurs, the convex-concave part that so can allow soft material surface is fully flattened, and can pass through again the flowing of soft material microplasticity and fill up the microscopic voids of spherical face.Therefore, according to high pressure, supertension, super supertension different pressures grade, different ball valve ball face sealing valves is secondary, different size of latus rectum, different valve body materials, the pressure of appropriate design special plane pressure and spinning process curve, make bellmouth inwall overall fully generation plastic deformation and strengthening.
It is computed, the contact surface that sphere and conical surface pressing are formed is that (this connecting portion longitudinal cross-section is actual is arc to an axisymmetric oblique anchor ring, calculates herein for convenient, is flattened during calculating, it is considered as simple bevel), connecting portion region is positioned at conical surface center-top.Along with being gradually increased of pretightning force, seal section width broadens gradually, and Sealing Stress is gradually increased.On the same annulus of hoop, each point is identical by contact stress size, but in sphere tangential direction, each point stress has certain change.Near seal section midpoint, pressure is maximum, also simply slightly fluctuates at close region stress intensity, and change is mild.Until the marginal portion of contact area, contact stress drops to only small suddenly.Therefore, sealing property relies on the zone line removed outside two ends of sealing area to ensure.
In the process of pressure, sealed width and sealing area are started from scratch and are gradually increased.Seal section width is more wide, and sealing property is relatively better, and relatively large pretightning force is beneficial to seal.
All using the contact stress evaluation criterion as sealing property in a lot of design of Sealing Structure methods, interface pressure is more big, is tightly connected more tight, and sealing property is more good.In pretightning force course of exerting pressure, while sealing area increases, contact stress is also being gradually increased, and when pretightning force increases, when stress reaches conical surface Materials Yield Limit, starts plastic deformation.The growth of stress and area increase synergy, and sealing property can be made quickly to strengthen in pressure processing.The stress growth speed simultaneously increased with pretightning force slows down gradually, contact surface can be made to be in the comparatively safe range of stress, it is to avoid stress is excessive causes that the application valve pair opening and closing susceptiveness reduces.
For sphere material, at course of exerting pressure and use procedure ball face sealing structure each several part all in the effect of holding capacity, and sphere upper surface angle position generation stress is concentrated, the development and design of the application ball face sealing spool and the maximum of processing pressure, can not select to be close to the yield limit of sphere material, but much smaller than the whole deformation of sphere material strength limit, course of exerting pressure and use procedure be all in regime of elastic deformation.And tapered portion except occurring plastic deformation, stress relatively big near contact position, all the other position stress are only small, less than yield limit intensity.
In sum, adopt different materials, the spool of big difference of hardness and valve body 100 (valve seat) base material composition ball face sealing structure valve secondary, not merely have solid foundation in theory, also obtain reliable authentication in practical application.
The application according to difference in functionality purposes, different latus rectum, different pressures grade, can select different sphere materials and conical surface material, different processing pressure curves, present techniques be applied in series of products.
Formed except connecting portion except directly utilizing core extruding taper hole wall shown in the present embodiment, also by other technique, such as machining, taper hole wall is processed into connecting portion.
For the problem of existing Solenoid ball valve, the application additionally uses special ceramic material to make the spool of Solenoid ball valve, and namely special pottery ball spool and metal valve body (valve seat) composition seal valve pair.Excellent engineering characteristic due to this special ceramic material, less than 120 DEG C to expand substantially zeroed sealing unaffected, so the spy of the application makes pottery, ball spool is stable, in the high temperature range that hydraulic system is likely to occur, (generally not over 90 DEG C), ball valve core size can remain stable for constant, so the secondary temperature distortion that only need to consider valve body (valve seat) of the sealing valve of this Solenoid ball valve.The valve body (valve seat) of the application has formed a spherical anchor ring suitable with valve ball having one fixed width through aforementioned processing technique, this ball collar face portion is to be extruded the vestige band of flow, its material character has bigger change, namely finer and close and stable, when being heated flatulence of heat type from arc edge to there being sluggish trend at the bottom of arc, and this spherical arc has one fixed width, thermal expansion is at most that the globular arc bandwidth conveying spy's pottery ball spool suitable has a little change, valve pair still has the sealant band width that can guarantee that required for superhigh pressure sealing, so the operating mode of Superhigh Pressure Hydraulic System within 200MPa can be met completely；The application adopts special special ceramic material, solves abrasion resistance, problem that life-span, hardness, density, pressure withstanding degree are all greatly improved, meets the technical need of Superhigh Pressure Hydraulic System electromagnetic ball type reversing valve；Special pottery spool fully achieves G10 and above high circularity and high-precision requirement, completely dispenses with other encapsulant, and the spherical sealed endless belt directly utilizing formation seals；Spheroid and the face seal of spherical female endless belt owing to coordinating between valve pair, so frictional resistance is little, high flexibility, opening and closing is convenient, and heating is few, and the life-span is long, need not any encapsulant, so cost simple and compact for structure is low, size is little；Special pottery spool heatproof is significantly high, can use in hot environment, self lubricity due to special ceramic material, as long as changing the material of valve body, path etc., just can be used for various fluid media (medium), also as its good corrosion stability, can be widely applied in the corrosive atmospheres such as acid-alkali salt, such as fields such as ocean, chemical industry, oil；Owing to spy makes pottery the less performance of expanding with heat and contract with cold of the special ceramic material of spool, higher consistency and elasticity modulus, thus processing flatulence of heat type deformation and cold plasticity are all less.So, list can reach high permissible accuracy, also helps and detects and superfinishing size Control online cooperation, it is possible to accomplishes wildcard, applicable batch production；Make pottery the Solenoid ball valve that the valve pair that ball spool and metal valve body (valve seat) form makes with present techniques technique spy, the Solenoid ball valve that the relative existing metal valve pair of the performance indications such as its commutation ability, the pressure loss, interior amount of leakage, commutation and resetting time, commutating frequency, service life is made is all substantially excellent, it is important to achieves and normally uses to more than 200MPa at more than supertension 70MPa.
Further, being additionally provided with sealing member 900 between piston bush 200 and secondary piston 500, sealing member conventional within the scope of normal pressure is the shaped packing seal circles such as O.Such as the sealing member of O-shaped rubber ring, it is a kind of simple and general effective seal type, with low cost, favorable sealing property.And under normal conditions, during as reciprocation sealing, have relatively low friction than lip packing.But, just entirely different in ultrahigh-pressure hydraulic environment, it cannot meet higher hydraulic environment.
To this, the sealing member 900 that the present embodiment adopts is made for polyurethane material, and it has well wear-resistant and anti-extrusion performance, is highly suitable as high-pressure sealing ring or micro sealing part.Polyurethane materials, have low-friction coefficient, high-wear resistance, dimensionally stable, tolerances severe, anti-extrusion damage, wear-resistant, its work girth stretch and compression less, be difficult to that permanent deformation occurs, hardness range relatively be suitable for supertension.The operating temperature of modern heat plasticity polyurethane (TPU) sealing member is from-40 DEG C～+120 DEG C, and the medium that chemical is strong is also suitable for.Meanwhile, high anti-jamming output capacity and the key property such as wearability is good are also maintained.Having the self lubricity of a bit, even if when not lubrication, piston rod seal component can also move back and forth with the speed of 0.05m/s under the pressure of 10MPa.By the long-term test of iso standard oil cylinder piston sealing member is shown, the life-span of polyurethane materials sealing member is 5～6 times of same geomery nitrile rubber sealing member.
Further, the slipper seal at the application secondary piston 500 two ends, test through over a long time, design secondary piston 500 encapsulation scheme of the supertension Solenoid ball valve of series:
Less fit clearance is selected between secondary piston 500 and piston bush 200, to be conducive to superhigh pressure sealing, it is 0.050mm-0.100mm according to the fit clearance (namely the maximum extrusion gap of sealing member 900) of the secondary piston 500 of latus rectum specifications design φ 6-φ 10 latus rectum with piston bush 200；The fit clearance (maximum extrusion gap) of φ 12-φ 18 latus rectum secondary piston 500 and piston bush 200 is 0.060mm-0.130mm；The fit clearance (maximum extrusion gap) of φ 20-φ 25 latus rectum secondary piston 500 and piston bush 200 is 0.080mm-0.160mm.
Two cooperation inner hole surface roughness of opposing seal 900 moving surface and piston bush 200 control at Ra0.2-0.8 μm, and its case hardness controls at HRc42-HRc55；Because dimensions sealing member less than normal 900 adopts non-combined monolithic design, sealing ring truncation surface to be the Cross section Design of rectangular base top tape arc surface；Encapsulant selects high hardness polyurethane PU, and hardness range selects shore hardness 48D-63D, as adopted PU57D high hardness polyurethane or PU63D ultrahigh hardness polyurethane material；Compression ratio is designed as 3%-18%, internal diameter of the seal ring less than φ 8 take 3%-8%, φ 8-φ 30 take 8%-18% etc..
Refer to Fig. 1, Solenoid ball valve work process shown in the present embodiment is summarized as follows:
The application Solenoid ball valve is in normally off, under the effect of spring 800 and back piston 600, core 400 is fitted in the spheric connecting portion 122 of valve body 100 taper hole inner face, high pressure liquid force feed enters the right chamber of valve body 100 the left cavity entering in piston bush 200 between 500 liang of end seals 900 of secondary piston by control oil duct 110 from hydraulic fluid port P, now right chamber acts on the area of core 400 by back piston 600 and acts on the area of core 400 more than left cavity secondary piston 500, namely there is active force difference, form an active force to the left, from but core 400 is closely pressed together in its spheric connecting portion 122, here it is the sealing state of Solenoid ball valve and closure state.
The application Solenoid ball valve seals owing to have employed aforesaid annular sphere, adopt high circularity high accuracy special ceramic material ball to do spool simultaneously, push rod two ends high rigidity turning plus peculiar design seals, make to be formed with complete confined space, this space is sealed 900 formed by the internal cavity of valve body 100 and blind nut 300 and sealing member thereof, core 400, piston bush 200 and sealing member thereof, high rigidity turning, thus meeting the seal request of 70-200MPa ultrahigh-pressure hydraulic oil, it is achieved effectively seal.
nullWhen needs are opened，Electric magnet 710 coil obtains electric，Armature 711 acts on the lever 720 being positioned at bonnet 730 to left movement，Lever 720 is acted on secondary piston 500 left side by the steel ball bottom lever 720 after armature 711 thrust to the left being amplified，Secondary piston 500 is promoted to move right，Secondary piston 500 right side promotes intermediate bar 130 to promote core 400 again，Now owing in left cavity being the hydraulic oil the same with oil inlet P，Which provides a counteracting force acted on to the right，Namely after lever 720 amplifies, thrust to the right only need to overcome secondary piston 500、Intermediate bar 130、The frictional resistance of back piston 600 and the resistance of spring 800 and right cavity and left cavity active area pressure reduction，Rather than need to overcome frictional resistance、Spring force and whole supertension act on the resistance in core 400，So，Amplified electric magnet 710 thrust is sufficient for requirement，Thus accomplishing that supertension Solenoid ball valve opens flexibility and reliability.When need to close, electric magnet 710 coil losing electricity, core 400 returns to original normally off immediately.
Above content is in conjunction with specific embodiment further description made for the present invention, it is impossible to assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace.
Claims (10)
1. a Solenoid ball valve, it is characterised in that including:
Valve body, described valve body includes the interface channel of inlet, liquid outlet, control oil duct and connection inlet and liquid outlet；
Piston bush, described piston bush is arranged on valve body, and it has secondary piston chamber；
Blind nut, described blind nut is arranged on valve body, and it has back piston chamber, and described secondary piston chamber and back piston chamber are respectively communicated with the both sides in interface channel, and described inlet connects by controlling oil duct with secondary piston chamber；
Core, described core is arranged in interface channel, and the conical inboard wall of described interface channel has the spheric connecting portion that a circle mates with core outer wall, and described core forms face seal with spheric connecting portion；
Secondary piston, described secondary piston is arranged on secondary piston intracavity, and it acts on one end of core, for core pushes away the spheric connecting portion of interface channel；
Back piston, described back piston is arranged on back piston intracavity, and it acts on the other end of core, for core is pushed to the spheric connecting portion of interface channel；
And electromagnet assembly, described electromagnet assembly includes electric magnet and drive mechanism, and the outfan of described drive mechanism can drive secondary piston to promote core, opens interface channel.
2. Solenoid ball valve as claimed in claim 1, it is characterised in that described core is that the spy that special ceramic material is made makes pottery ball.
3. Solenoid ball valve as claimed in claim 2, it is characterised in that described valve body adopts steel alloy or special stainless steel to make.
4. Solenoid ball valve as claimed in claim 2, it is characterised in that being additionally provided with sealing member between piston bush and secondary piston, described sealing member is the sealing member that polyurethane material is made.
5. Solenoid ball valve as claimed in claim 3, it is characterised in that the secondary piston of φ 6-φ 10 latus rectum and the fit clearance of piston bush are 0.050mm-0.100mm.
6. Solenoid ball valve as claimed in claim 3, it is characterised in that the secondary piston of φ 12-φ 18 latus rectum and the fit clearance of piston bush are 0.060mm-0.130mm.
7. Solenoid ball valve as claimed in claim 3, it is characterised in that the secondary piston of φ 20-φ 25 latus rectum and the fit clearance of piston bush are 0.080mm-0.160mm.
8. the Solenoid ball valve as according to any one of claim 1 to 7, it is characterised in that be provided with the elastic component for promoting back piston to move to core between described back piston and blind nut.
9. Solenoid ball valve as claimed in claim 8, it is characterised in that described elastic component is spring.
10. Solenoid ball valve as claimed in claim 8, it is characterised in that described drive mechanism is lever, and described electric magnet acts on one end of lever, and the other end of described lever acts on secondary piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521065308.0U CN205371758U (en) | 2015-12-17 | 2015-12-17 | Electromagnetic ball valve |
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| CN106594299A (en) * | 2017-02-15 | 2017-04-26 | 王家梁 | Ultrahigh-pressure valve and hydraulic system |
| CN107725820A (en) * | 2017-10-18 | 2018-02-23 | 宁波文泽机电技术开发有限公司 | No leakage Solenoid ball valve |
| CN107906221A (en) * | 2017-12-21 | 2018-04-13 | 海杰亚（北京）医疗器械有限公司 | Two-position three-way reversing valve and reversing method for low-flow liquid nitrogen cryogenic system |
| CN108005983A (en) * | 2017-12-01 | 2018-05-08 | 宁波文泽机电技术开发有限公司 | A kind of big flow Solenoid ball valve |
| CN110594440A (en) * | 2019-09-10 | 2019-12-20 | 中国空气动力研究与发展中心超高速空气动力研究所 | Pneumatic ball valve for ultra-high speed wind tunnel throat and processing method thereof |
| CN111271332A (en) * | 2020-02-18 | 2020-06-12 | 中国煤炭科工集团太原研究院有限公司 | High-flow pilot-operated intrinsic safety electromagnetic water replenishing valve for mining emulsion pump station and use method |
| CN111365507A (en) * | 2020-04-16 | 2020-07-03 | 北京控制工程研究所 | A miniaturized high-voltage piezoelectric proportional valve based on displacement amplification of spring tube |
| CN111810702A (en) * | 2020-06-29 | 2020-10-23 | 宁波飞泰工业自控设备有限公司 | A pilot valve assembly |
| CN112681325A (en) * | 2020-12-17 | 2021-04-20 | 赵琪芸 | Hydraulic engineering fills slip casting machine with crack |
| WO2021121170A1 (en) * | 2019-12-16 | 2021-06-24 | 河南平高电气股份有限公司 | Electro-hydraulic control valve for hydraulic operating mechanism, and electromagnetic pilot valve and pilot valve thereof |
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| CN106594299A (en) * | 2017-02-15 | 2017-04-26 | 王家梁 | Ultrahigh-pressure valve and hydraulic system |
| CN106594299B (en) * | 2017-02-15 | 2019-12-13 | 王家梁 | Proportional overflow valve and hydraulic system |
| CN107725820A (en) * | 2017-10-18 | 2018-02-23 | 宁波文泽机电技术开发有限公司 | No leakage Solenoid ball valve |
| CN107725820B (en) * | 2017-10-18 | 2019-05-21 | 立信阀门集团有限公司 | No leakage Solenoid ball valve |
| CN108005983A (en) * | 2017-12-01 | 2018-05-08 | 宁波文泽机电技术开发有限公司 | A kind of big flow Solenoid ball valve |
| CN108005983B (en) * | 2017-12-01 | 2019-11-05 | 上海楷液流体技术有限公司 | A kind of big flow Solenoid ball valve |
| CN107906221A (en) * | 2017-12-21 | 2018-04-13 | 海杰亚（北京）医疗器械有限公司 | Two-position three-way reversing valve and reversing method for low-flow liquid nitrogen cryogenic system |
| CN110594440A (en) * | 2019-09-10 | 2019-12-20 | 中国空气动力研究与发展中心超高速空气动力研究所 | Pneumatic ball valve for ultra-high speed wind tunnel throat and processing method thereof |
| CN110594440B (en) * | 2019-09-10 | 2023-09-15 | 中国空气动力研究与发展中心超高速空气动力研究所 | Pneumatic ball valve for ultrahigh-speed wind tunnel throat and processing method thereof |
| WO2021121170A1 (en) * | 2019-12-16 | 2021-06-24 | 河南平高电气股份有限公司 | Electro-hydraulic control valve for hydraulic operating mechanism, and electromagnetic pilot valve and pilot valve thereof |
| CN111271332B (en) * | 2020-02-18 | 2021-11-12 | 中国煤炭科工集团太原研究院有限公司 | High-flow pilot-operated intrinsic safety electromagnetic water replenishing valve for mining emulsion pump station and use method |
| CN111271332A (en) * | 2020-02-18 | 2020-06-12 | 中国煤炭科工集团太原研究院有限公司 | High-flow pilot-operated intrinsic safety electromagnetic water replenishing valve for mining emulsion pump station and use method |
| CN111365507A (en) * | 2020-04-16 | 2020-07-03 | 北京控制工程研究所 | A miniaturized high-voltage piezoelectric proportional valve based on displacement amplification of spring tube |
| CN111365507B (en) * | 2020-04-16 | 2021-10-01 | 北京控制工程研究所 | A miniaturized high-voltage piezoelectric proportional valve based on displacement amplification of spring tube |
| CN111810702A (en) * | 2020-06-29 | 2020-10-23 | 宁波飞泰工业自控设备有限公司 | A pilot valve assembly |
| CN112681325A (en) * | 2020-12-17 | 2021-04-20 | 赵琪芸 | Hydraulic engineering fills slip casting machine with crack |
| CN112681325B (en) * | 2020-12-17 | 2021-11-12 | 宁夏宏远建设工程有限公司 | Crack filling grouting machine for hydraulic engineering |
| CN113027925A (en) * | 2021-04-16 | 2021-06-25 | 南昌工程学院 | Self-sealing lubricating high-temperature rolling bearing and manufacturing method thereof |
| CN113027925B (en) * | 2021-04-16 | 2022-08-23 | 南昌工程学院 | Self-sealing lubricating high-temperature rolling bearing and manufacturing method thereof |
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