CN201054293Y - High-speed percent electronic magnet - Google Patents
High-speed percent electronic magnet Download PDFInfo
- Publication number
- CN201054293Y CN201054293Y CNU2007200789906U CN200720078990U CN201054293Y CN 201054293 Y CN201054293 Y CN 201054293Y CN U2007200789906 U CNU2007200789906 U CN U2007200789906U CN 200720078990 U CN200720078990 U CN 200720078990U CN 201054293 Y CN201054293 Y CN 201054293Y
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- permanent magnet
- magnet
- high speed
- valve
- radially
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Abstract
The utility model relates to a high-speed proportional electromagnet, which belongs to a part of an electrohydraulic proportional valve. The high-speed proportional electromagnet aims at solving the problems existing in the prior proportional electromagnet moving part that the weight is heavy, the structure is complex, the response is slow, the moving part can only make unidirectional driving, and the stress in the reverse direction of the moving part is inconvenient to be controlled. An annular permanent magnet consisting of permanent magnets (4) is fixed and connected at the circumference of the inner wall of a casing body (1), an iron core (2) is positioned in the annular permanent magnet and is fixed and connected with one end of the casing body (1), a floatable control coil (3) which is positioned in the space between the annular permanent magnet and the iron core and can float is fixed and connected with a framework (7), and is connected with a connecting terminal (5), the framework (7) is fixed and connected with the valve core (10) of the electrohydraulic proportional valve at the other end of the casing body, and a sealing device is arranged between the casing body (1) and the valve rod of the valve core (10). The utility model has the advantages that the requirements are met, such as large power exertion, quick response, sensitivity, good dynamic performance, high linearity, low hysteresis, simpleness and reliability of the high speed proportional valve.
Description
Technical field:
The utility model is relevant with electro-hydraulic proportional valve, and is especially relevant with the proportion electro-magnet of electro-hydraulic proportional valve.
Background technology:
Electrohydraulic proportion technology is a kind of between traditional electrohydraulic valve control and the novel control technology between the electro-hydraulic servo control.Proportioning valve is the core parts of electrohydraulic proportion technology, also is one of key element in the hydraulic system, is typical case's representative of mechanical-electrical-hydraulic integration product.Proportional technique exploitation and production level are being represented the highest level of hydraulic part manufacturing enterprise.
Proportion electro-magnet is the important component part of proportioning valve, its input is the output signal of telecommunication (or voltage signal) of proportional controller, be output as mechanical force or displacement signal, and control the valve core movement of hydraulic valve, and then realize parameter proportional control such as hydraulic system pressure, flow with this.And the performance of proportion electro-magnet, to stable control precision, the dynamic response characteristic of electric-hydraulic proportion control element and system, functional reliability etc. produce material impact.
Existing proportion electro-magnet movement parts is heavy, inertia is big, only can unidirectional drive, and it is stressed etc. to be not easy to the opposite direction of controlled motion spare.
The utility model content:
The purpose of this utility model provide a kind of exert oneself big, response is fast, sensitive, dynamic property is good, height is linear, little stagnant ring, be convenient to change magnetic direction, simple and reliable for structure, suitable proportioning valve is the proportion electro-magnet of high speed proportioning valve particularly.
The utility model is achieved in that
The utility model high speed proportion electro-magnet, the inwall circumference of housing 1 is equipped with the annular permanent magnet that permanent magnet 4 constitutes, the end that iron core 2 is positioned at annular permanent magnet and housing 1 is connected, and the space between annular permanent magnet and iron core and relocatable control coil 3 are connected with skeleton 7 and are connected with binding post 5.
Said permanent magnet 4 is for radially in the same way or radially oppositely staggered or tangential oppositely staggered or tangential and radially cross arrangement, and is tangential and radially staggered reverse.
Said sealing device has the seal receptacle 8 that is connected with end cap 6, is positioned at the leather cup 9 of the groove of seal receptacle and spool valve rod and skeleton formation.
Having pin 12 to pass skeleton 7 is connected with both with hole on the seal receptacle 8.
The utlity model has following advantage:
1, compare with general general electromagnet, this device movement parts very light in weight, inertia is little, it is big to exert oneself, response is fast, sensitivity; The dynamic property of valve is good during closed loop, the characteristics of high linearity, little stagnant ring;
2, general electromagnet only can provide unidirectional drive power, has limited its scope of application.Hydraulic valve will be realized two-way function, just needs two motor converters, and this makes the volume of hydraulic valve increase, and cost improves, and quality, structure also have a negative impact to the dynamic response of valve; This device only needs can realize by the control coil sense of current once the cover motor converter bidirectional-movement of spool;
3, tile type permanent magnet provides magnetic field, and under the same version, changing array just provides different magnetic field, and electromagnet can be exported the power of different brackets.The magnetic line of force of working region passes through perpendicular to tiling, and it is more even to distribute, and has guaranteed the linearity of power output and electric current like this.Airborne in addition leakage field is almost nil, and opposite the magnetic line of force is radial distribution in the effective air gap of coil rack activity, and therefore as long as electric current is certain, the power of exporting when little displacement is subjected to the influence of displacement hardly;
4, simple in structure, good manufacturability.
Description of drawings:
Fig. 1 is a structure chart of the present utility model
Fig. 2 is one of magnetization array of permanent magnet.
Fig. 3 be permanent magnet the magnetization array two.
Fig. 4 be permanent magnet the magnetization array three.
Fig. 5 be permanent magnet the magnetization array four.
Embodiment:
The utility model is made up of housing 1, iron core 2, control coil 3, permanent magnet 4, binding post 5, end cap 6, skeleton 7, seal receptacle 8, leather cup 9, spool 10, attaching nut 11, pin 12, screw 13 etc.Wherein iron core 2 is rigidly attached on the housing 1, and permanent magnet is along the circumferential direction rearranged by multi-disc tile shape permanent magnet 4, according to the direction of magnetization difference of permanent magnet, can form different magnetization arrays such as Fig. 2-5.Twine control coil 3 on the skeleton 7 of lightweight, control coil 3 floats and packs between iron core 2 and the permanent magnet.Control coil 3 links to each other with the electric controller of outside by binding post 5, skeleton 7 links to each other with the spool of being controlled by nut 11, screw 13 is fixing with seal receptacle 8 and leather cup 9, form movable sealing, and make control coil 3, spool 10 move more steady, pin 12 pack into skeleton 7 and seal receptacles 8 can prevent the rotation of skeleton 7 and spool.
By iron core 2, permanent magnet, housing 1 is formed magnetic circuit, control coil energising back is subjected to an axial force in magnetic field, drive spool and produce axial motion, permanent magnet is made up of the multi-disc permanent magnet, because the direction of magnetization difference of permanent magnet 4, can form different magnetization arrays, different arrays magnetic line of force between working gas gap distribute and intensity different, thereby produce different motive forces, like this can be by adjusting the power that permanent magnet magnetization array just can make same coil output different brackets under the situation that does not change other structures, and some array is because the magnetic flux density at working gas gap place is very strong, so under less coil electricity current status, motive force that can be bigger just.The magnetic line of force of working region passes through perpendicular to the permanent magnet tiling, and it is more even to distribute, and has guaranteed the linearity of power output and electric current like this.Airborne in addition leakage field is almost nil, and opposite the magnetic line of force is radial distribution in the effective air gap of coil rack activity, and therefore as long as electric current is certain, the power of exporting when little displacement is subjected to the influence of displacement hardly.
Claims (6)
1. high speed proportion electro-magnet, the inwall circumference that it is characterized in that housing (1) is equipped with the annular permanent magnet that permanent magnet (4) constitutes, the end that iron core (2) is positioned at annular permanent magnet and housing (1) is connected, and the space between annular permanent magnet and iron core and relocatable control coil (3) are connected with skeleton (7) and are connected with binding post (5).
2. the described high speed proportion electro-magnet of claim 1, skeleton (7) is connected with the spool (10) of the electro-hydraulic proportional valve of the housing other end, between the valve rod of housing (1) and spool (10) sealing device is arranged.
3. high speed proportion electro-magnet according to claim 2 is characterized in that said sealing device has the seal receptacle (8) that is connected with end cap (6), is positioned at the leather cup (9) of the groove of seal receptacle and spool valve rod and skeleton formation.
4. high speed proportion electro-magnet according to claim 3, (12) are passed skeleton (7) and are connected with both with hole on the seal receptacle (8) to it is characterized in that pin is arranged.
5. high speed proportion electro-magnet according to claim 1 is characterized in that permanent magnet (4) is the permanent magnet of multi-disc tile shape, and the pattern of the direction of magnetization of permanent magnet is radially positive and negative direction, any 1-4 kind in tangential direction, the opposite direction.
6. high speed proportion electro-magnet according to claim 5 is characterized in that said permanent magnet (4) for radially in the same way or radially oppositely staggered or tangential oppositely staggered or tangential and radially cross arrangement, and is tangential and radially staggered reverse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200789906U CN201054293Y (en) | 2007-04-03 | 2007-04-03 | High-speed percent electronic magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200789906U CN201054293Y (en) | 2007-04-03 | 2007-04-03 | High-speed percent electronic magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201054293Y true CN201054293Y (en) | 2008-04-30 |
Family
ID=39393954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200789906U Expired - Fee Related CN201054293Y (en) | 2007-04-03 | 2007-04-03 | High-speed percent electronic magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201054293Y (en) |
Cited By (3)
| 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 |
| CN103047426A (en) * | 2013-01-11 | 2013-04-17 | 浙江大学台州研究院 | Pneumatic proportional pressure valve |
| CN108511146A (en) * | 2018-02-11 | 2018-09-07 | 山东科技大学 | A kind of novel double-direction control proportion electro-magnet device and its control method |
-
2007
- 2007-04-03 CN CNU2007200789906U patent/CN201054293Y/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN103047426A (en) * | 2013-01-11 | 2013-04-17 | 浙江大学台州研究院 | Pneumatic proportional pressure valve |
| CN108511146A (en) * | 2018-02-11 | 2018-09-07 | 山东科技大学 | A kind of novel double-direction control proportion electro-magnet device and its control method |
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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: 20080430 Termination date: 20120403 |