CN201812622U - Dual-head ratio electromagnet - Google Patents
Dual-head ratio electromagnet Download PDFInfo
- Publication number
- CN201812622U CN201812622U CN2009202468773U CN200920246877U CN201812622U CN 201812622 U CN201812622 U CN 201812622U CN 2009202468773 U CN2009202468773 U CN 2009202468773U CN 200920246877 U CN200920246877 U CN 200920246877U CN 201812622 U CN201812622 U CN 201812622U
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- moving iron
- magnetic
- double
- electromagnet
- housing
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- Expired - Fee Related
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Abstract
The utility model relates to a dual-head ratio electromagnet. Two ratio electromagnets are abreast arranged and manufactured in a housing and can work independently; the dual-head ratio electromagnet is particularly suitable for controlling a hydraulic proportional valve and serve as an electromechanical converter used in the hydraulic proportional valve; a current control signal is proportionally converted into driving force, and the driving force drives a valve core of a hydraulic valve to move; the main structure of the dual-head ratio electromagnet comprises a housing and two ratio electromagnets, wherein each ratio electromagnet comprises a moving iron, a magnetic boot, a spacer sleeve, an end plug, a top rod and a coil winding; the spacer sleeve is arranged among the moving iron, the magnetic boot, the end plug and the coil winding, and the moving iron can slide in the spacer sleeve; the housing, the moving iron and the magnetic boot constitute a closed magnetic circuit, when current passes through the coil winding, magnetic flux is generated between the moving iron and the magnetic boot and generates electromagnetic attraction to enable the moving iron to move rightwards, so as to push the top rod to extend out rightwards; and a step is arranged at the right end of the moving iron, a circular conical surface and a counter bore are arranged on the left end surface of the magnetic boot, the magnetic line of force at the air gap between the moving iron and the magnetic boot is partially shunted, when the distance is farther, less magnetic line of force is shunted, and when the distance is nearer, more magnetic line of force is shunted, so that the electromagnetic attraction sharply increased due to the nearer distance can be neutralized, and finally, the electromagnetic attraction in the whole working stroke is only related to the current magnitude and irrelevant to the position.
Description
Technical field
The utility model belongs to a kind of proportion electro-magnet, be particularly related to a kind of two proportion electro-magnets that in a housing, manufacture and design side by side, two proportion electro-magnets can work alone respectively, are specially adapted to control hydraulic proportion valve, and it is the electromechanical conversion equipment in the hydraulic proportion valve.
Background technology
At present, known proportion electro-magnet generally has only an output push rod, only can control a proportioning valve.In hydraulic control development of integration technology in recent years, a kind of double-end proportion electromagnet of special demands can be controlled the two-way hydraulic proportion valve simultaneously.Control a hydraulic proportional direction valve with a double-end proportion electromagnet control two-way hydraulic proportion valve as pilot stage, can make hydraulic proportional direction valve compact conformation like this.In addition, existing proportion electro-magnet does not have separation sleeve, and it is filled with non-magnet material between magnetic boots and sleeve and is welded into a tube, is used for the leaking outside and make electromagnetic attraction output only relevant with size of current of seal isolation fluid.Permeability magnetic material and non-magnet material welding be difficulty, and complex process, needs postwelding machining and heat treatment.
Summary of the invention
In order to satisfy the demand of hydraulic proportional direction valve to double-end proportion electromagnet, simplify the structure of proportion electro-magnet, improve its process for machining and manufacturing, the inventor gets generation of the present utility model eventually through feasibility study repeatedly; The utility model provides a kind of double-end proportion electromagnet, has that compact conformation, manufacturing process are simple, the technical characterstic of reliable operation.
The technical scheme that the utility model adopted is: a kind of double-end proportion electromagnet, in a housing, manufacture and design two proportion electro-magnets side by side, mainly comprise a housing, two proportion electro-magnets, each electromagnet comprises moving iron, magnetic boots, separation sleeve, plug, push rod, coil windings.It is characterized in that: a kind of double-end proportion electromagnet, design isolated cover between moving iron, magnetic boots, plug and coil windings, moving iron can slide in separation sleeve, and two proportion electro-magnets can work alone respectively, and it is the electromechanical conversion equipment in the hydraulic proportion valve.
Constitute closed magnetic circuit by housing, moving iron, magnetic boots, when coil windings has electric current to pass through, produce magnetic flux between moving iron, magnetic boots, this magnetic flux produces electromagnetic attraction moves to right iron, promotes push rod and stretches out to the right.
In moving iron right-hand member design step is arranged, design taper seat and the counterbore that has in magnetic boots left side, make that the air gap place magnetic line of force has the part shunting between moving iron, magnetic boots, when distance was far away, magnetic line of force shunting was less, during close together, magnetic line of force shunting is more, the sharp increase of electromagnetic attraction in the time of can offsetting because of close together like this makes that finally electromagnetic attraction is only relevant with size of current in whole impulse stroke, with location independent.
A push rod is installed in moving iron right-hand member centre bore, and push rod outwards transmits electromagnetic attraction.
Between moving iron and magnetic boots, pad of suit on push rod is to limit the minimal air gap between moving iron and the magnetic boots.
Axially extending bore of design on moving iron to link up moving iron two ends cavity volume, can make fluid flow freely between two cavity volumes.
Groove of design is installed sealing ring on the magnetic boots, is used for fluid in the seal isolation cover.
Groove of design is installed sealing ring on plug, is used for fluid in the seal isolation cover.
Screw of design is fixed on plug on the housing with screw on plug.
With the lead-in wire that is installed in two coil windings of one four pin socket connection on the housing.
Sealing gasket of stack on housing, prevents that extraneous contamination by dust thing from entering electromagnet inside with four screw below four pin sockets
The utility model is to design two proportion electro-magnets on a housing side by side, and two proportion electro-magnets can work alone respectively, are specially adapted to control hydraulic proportion valve, and it is the electromechanical conversion equipment in the hydraulic proportion valve.Can proportionally convert current controling signal to actuating force, this actuating force promotes the valve core movement of hydraulic valve.
The beneficial effects of the utility model are: manufacture and design two proportion electro-magnets in a housing side by side, can control a hydraulic proportional direction valve as pilot stage with a double-end proportion electromagnet control two-way hydraulic proportion valve, can make hydraulic proportional direction valve compact conformation like this; Design isolated cover between moving iron, magnetic boots, plug and coil windings has been avoided the problem of difficulty of permeability magnetic material and non-magnet material welding, makes that the proportion electro-magnet manufacturing process is simple.
Description of drawings
Fig. 1 is the front view of double-end proportion electromagnet.
Fig. 2 is the C-C profile of double-end proportion electromagnet.
Fig. 3 is the vertical view of double-end proportion electromagnet.
Fig. 4 is the partial view of double-end proportion electromagnet C-C profile.
Figure number explanation: 1. housing, 2. push rod is 3. installed through hole, 4. sealing gasket, 5. four pin sockets, 6. moving iron, 7. separation sleeve, 8. coil windings, 9. axially extending bore, 10. pad, 11. sealing rings, 12. magnetic boots, 13. sealing ring, 14. plugs, 15. screws, 16. screws, 17. taper seats.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
In the front view of Fig. 1 double-end proportion electromagnet, A, B represent two proportion electro-magnets, and design and installation is on a housing 1 side by side, and push rod 2 can outwards spread out of the power of proportion electro-magnet.Design has a sealing gasket 4 between four pin sockets 5 and housing 1, is used for preventing that extraneous dust, steam from entering electromagnet inside, and electromagnet inside is protected.By three through hole 3 being installed is fixed on double-end proportion electromagnet on the valve body or valve piece of ratio hydraulic valve.The C-C section is a vertical section of passing ratio electromagnet A center line.
In the C-C of Fig. 2 double-end proportion electromagnet profile, the distance from the right side of pad 10 to magnetic boots 12 counterbore bottom surfaces is an impulse stroke.Design isolated cover 7 between moving iron 6, magnetic boots 12, plug 14 and coil windings 8, moving iron 6 can slide in separation sleeve 7.Housing 1, moving iron 6 and magnetic boots 12 constitute closed magnetic circuit, when coil windings 8 has electric current to pass through, produce axial magnetic flux between moving iron 6, magnetic boots 12, and this magnetic flux produces electromagnetic attraction moves to right iron 6, promotes push rod 2 and stretches out to the right.A push rod 2 is installed in moving iron 6 right-hand member centre bores, and push rod 2 outwards transmits electromagnetic attraction.Between moving iron 6 and magnetic boots 12, pad 10 of suit on push rod 2 is to limit the minimal air gap between moving iron 6 and the magnetic boots 12.Axially extending bore 9 of design on moving iron 6 to link up moving iron 6 two ends cavity volumes, can make fluid flow freely between two cavity volumes.Groove of design is installed sealing ring 11 on magnetic boots 12, is used for fluids in the seal isolation cover 7, prevents outside outflow.Groove of design is installed sealing ring 13 on plug 14, is used for fluids in the seal isolation cover 7, prevents outside outflow.Screw of design is fixed on plug 14 on the housing 1 with screw 15 on plug 14, prevents plug 14 axial endplay in separation sleeve 7.
In the vertical view of Fig. 3 double-end proportion electromagnet, A, B represent two proportion electro-magnets, connect the lead-in wire of two coil windings 8 with one four pin socket 5.With four screws 16 four pin sockets 5 are fixed on the housing 1.
In the partial view of Fig. 4 double-end proportion electromagnet C-C profile, in the design of moving iron 6 right-hand members step is arranged, the taper seat 17 and the counterbore that have in the design of magnetic boots 12 left sides, the distance from the right side of pad 10 to magnetic boots 12 counterbore bottom surfaces is an impulse stroke.The step of moving iron 6 right-hand members, the taper seat 17 of magnetic boots 12 left sides and counterbore make moving iron 6,12 air gap places of magnetic boots magnetic line of force that the part shunting be arranged, when distance is far away, magnetic line of force shunting is less, during close together, magnetic line of force shunting is more, the sharp increase of electromagnetic attraction in the time of can offsetting because of close together like this makes that finally electromagnetic attraction is only relevant with size of current in whole impulse stroke, with location independent.
In sum, be preferred embodiment of the present utility model, all changes of doing according to technical solutions of the utility model when the function that is produced does not exceed the scope of technical solutions of the utility model, all belong to protection range of the present utility model.
Claims (11)
1. double-end proportion electromagnet, in a housing, manufacture and design two proportion electro-magnets side by side, mainly comprise a housing, two proportion electro-magnets, each electromagnet comprises moving iron, magnetic boots, separation sleeve, plug, push rod, coil windings, it is characterized in that: a kind of double-end proportion electromagnet, design isolated cover between moving iron, magnetic boots, plug and coil windings, moving iron can slide in separation sleeve, two proportion electro-magnets can work alone respectively, and it is the electromechanical conversion equipment in the hydraulic proportion valve.
2. double-end proportion electromagnet as claimed in claim 1, it is characterized in that: housing, moving iron, magnetic boots constitute closed magnetic circuit, when coil windings has electric current to pass through, produce magnetic flux between moving iron, magnetic boots, this magnetic flux produces electromagnetic attraction moves to right iron, promotes push rod and stretches out to the right.
3. double-end proportion electromagnet as claimed in claim 1 is characterized in that: in moving iron right-hand member design step is arranged, at taper seat and the counterbore that the design of magnetic boots left side has, make that the air gap place magnetic line of force has the part shunting between moving iron, magnetic boots.
4. double-end proportion electromagnet as claimed in claim 1 is characterized in that: a push rod is installed in moving iron right-hand member centre bore, and push rod outwards transmits electromagnetic attraction.
5. double-end proportion electromagnet as claimed in claim 1 is characterized in that: between moving iron and magnetic boots, pad of suit on push rod is to limit the minimal air gap between moving iron and the magnetic boots.
6. double-end proportion electromagnet as claimed in claim 1 is characterized in that: axially extending bore of design on moving iron to link up moving iron two ends cavity volume, can make fluid flow freely between two cavity volumes.
7. double-end proportion electromagnet as claimed in claim 1 is characterized in that: groove of design is installed sealing ring on the magnetic boots, is used for fluid in the seal isolation cover.
8. double-end proportion electromagnet as claimed in claim 1 is characterized in that: groove of design is installed sealing ring on plug, is used for fluid in the seal isolation cover.
9. double-end proportion electromagnet as claimed in claim 1 is characterized in that: screw of design on plug is fixed on plug on the housing with screw.
10. double-end proportion electromagnet as claimed in claim 1 is characterized in that: with the lead-in wire that is installed in two coil windings of one four pin socket connection on the housing.
11. double-end proportion electromagnet as claimed in claim 1 is characterized in that: below four pin sockets the stack sealing gasket, with four screw on housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202468773U CN201812622U (en) | 2009-11-23 | 2009-11-23 | Dual-head ratio electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202468773U CN201812622U (en) | 2009-11-23 | 2009-11-23 | Dual-head ratio electromagnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812622U true CN201812622U (en) | 2011-04-27 |
Family
ID=43895561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202468773U Expired - Fee Related CN201812622U (en) | 2009-11-23 | 2009-11-23 | Dual-head ratio electromagnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812622U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434516A (en) * | 2011-11-30 | 2012-05-02 | 浙江大学 | Electromagnet differential motion driving method for double-electromagnet proportional directional-flow valve |
| CN102537376A (en) * | 2012-01-16 | 2012-07-04 | 广东理文造纸有限公司 | Integrated proportional valve |
| CN113030805A (en) * | 2021-03-02 | 2021-06-25 | 陈伟华 | Experiment device and test method based on magnetic asymmetric method |
| CN114294435A (en) * | 2021-12-14 | 2022-04-08 | 北京天玛智控科技股份有限公司 | Integral proportional pressure reducing valve |
-
2009
- 2009-11-23 CN CN2009202468773U patent/CN201812622U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434516A (en) * | 2011-11-30 | 2012-05-02 | 浙江大学 | Electromagnet differential motion driving method for double-electromagnet proportional directional-flow valve |
| CN102537376A (en) * | 2012-01-16 | 2012-07-04 | 广东理文造纸有限公司 | Integrated proportional valve |
| CN102537376B (en) * | 2012-01-16 | 2014-04-23 | 广东理文造纸有限公司 | Integrated proportional valve |
| CN113030805A (en) * | 2021-03-02 | 2021-06-25 | 陈伟华 | Experiment device and test method based on magnetic asymmetric method |
| CN114294435A (en) * | 2021-12-14 | 2022-04-08 | 北京天玛智控科技股份有限公司 | Integral proportional pressure reducing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20131123 |