CN102768892A - Proportional electromagnet - Google Patents
Proportional electromagnet Download PDFInfo
- Publication number
- CN102768892A CN102768892A CN2012102785356A CN201210278535A CN102768892A CN 102768892 A CN102768892 A CN 102768892A CN 2012102785356 A CN2012102785356 A CN 2012102785356A CN 201210278535 A CN201210278535 A CN 201210278535A CN 102768892 A CN102768892 A CN 102768892A
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- pole shoe
- guide pin
- pin bushing
- guide sleeve
- push rod
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Abstract
A proportional electromagnet comprises a coil combination with a central shaft hole and a guide sleeve arranged in the central shaft hole. An armature and a push rod mounted on one side of the armature are arranged in the guide sleeve. A pole shoe is closed on one side, facing to an opening of the guide sleeve, of the push rod. The middle of the pole shoe is provided with a through hole for the push rod to penetrate through. A magnetism isolating ring is arranged at a position, close to the pole shoe, of the guide sleeve. The guide sleeve and the pole shoe are made of a same material. By means of the design that the guide sleeve and the pole shoe are made of the same material, a gap between the pole shoe and the guide sleeve caused by a split design can be reduced, loop closing of a magnetic field is more facilitated, and product performance can be further improved.
Description
Technical field
The present invention relates to a kind of proportion electro-magnet, and be particularly related to a kind of proportion electro-magnet with good magnetic field closed loop.
Background technology
Proportion electro-magnet is as the electromechanical converter spare of electric-hydraulic proportion control element, and its function is current signal converting to force or the displacement with Proportional Amplifer output.Proportion electro-magnet thrust is big, and is simple in structure, less demanding to oil cleanliness; Easy to maintenance, with low cost, armature chamber can be made high pressure resistant structure; It is most widely used electromechanical converter spare in the electro-hydraulic proportional control technology; Its characteristic and functional reliability have crucial influence to electro-hydraulic proportional control system and element, are one of critical components of electro-hydraulic proportional control technology.
The typical structure of proportion electro-magnet is as shown in Figure 1, mainly comprises push rod 1, pole shoe 2, coil 3, magnetism-isolating loop 4, guide pin bushing 5, armature 6, housing 7.It has increased magnetism-isolating loop 4 on the general electromagnet basis.When the signal input line circle; The coil internal magnetic field produces active force to armature; Armature 6 is pressed proportional, the motion continuously of size and Orientation of signal code in magnetic field, drive push rod 1 motion through the pin that is fixed together again, thus the motion of control valve core of the spool valve.Yet because pole shoe 2 adopts the split design with guide pin bushing 5, the magnetic field closed loop is weakened, and makes that the overall performance of proportion electro-magnet product is not fully up to expectations.
Summary of the invention
To the problems referred to above, the purpose of this invention is to provide a kind of proportion electro-magnet with good magnetic field closed loop.
A kind of proportion electro-magnet of the present invention; It comprises the coil assembly with central shaft hole and is mounted on the guide pin bushing in the central shaft hole; Be provided with armature in the said guide pin bushing and be installed on the push rod of armature one side, said putter face has a pole shoe to the guide pin bushing opening is one side closed, and said pole shoe middle part is provided with the through hole that supplies push rod to pass; Said guide pin bushing is provided with magnetism-isolating loop near the position of pole shoe, and said guide pin bushing and pole shoe use same block of material to be processed to form.
In one embodiment of the invention, to be processed to form from one be the cylinder of diameter with the pole shoe external diameter for said guide pin bushing and pole shoe all-in-one.
In one embodiment of the invention, the external diameter of said pole shoe is 1.1 ~ 1.3:1 with the external diameter ratio of guide pin bushing.
In one embodiment of the invention, said magnetism-isolating loop (60) is at a distance from the magnetic copper ring.
By the design of using same block of material to be processed to form said guide pin bushing and pole shoe, can reduce pole shoe that the split design brings and the gap between the guide pin bushing, be more conducive to the magnetic field closed loop, and then enhance product performance.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of specification, and for let above and other objects of the present invention, feature and advantage can be more obviously understandable, below special act embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is a kind of structural representation of existing proportion electro-magnet body.
Fig. 2 is the structural representation of proportion electro-magnet of the present invention.
Embodiment
In order further to set forth the present invention, reach technological means and effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment,, specify as follows embodiment, structure, characteristic and the effect thereof that proposes according to the present invention.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can be known to appear in the following detailed description that cooperates with reference to graphic preferred embodiment.Through the explanation of embodiment, when can being to reach technological means and the effect that predetermined purpose takes to be able to more deeply and concrete understanding to the present invention, yet the appended graphic usefulness that only provides reference and explanation be not to be used for the present invention is limited.
Please with reference to shown in Figure 2, present embodiment proportion electro-magnet (100) is a kind of drive unit of proportioning valve, is installed on the proportioning valve, can drive proportioning valve and realize the isoparametric proportional control of pressure, flow to hydraulic system.Said proportion electro-magnet (100) comprises the coil assembly (10) with central shaft hole and is mounted on the guide pin bushing (20) in the central shaft hole; Be provided with armature (30) in the said guide pin bushing (20) and be installed on the push rod (40) of armature (30) one sides; Said push rod (40) has a pole shoe (50) towards guide pin bushing (20) opening is one side closed; Said pole shoe (50) middle part is provided with the through hole (figure does not show) that supplies push rod (40) to pass; Said guide pin bushing (20) is provided with magnetism-isolating loop (60) near the position of pole shoe (50), and the magnetism-isolating loop in the present embodiment (60) is at a distance from the magnetic copper ring.When the signal input line circle; The coil internal magnetic field produces active force to armature (30); Armature (30) is pressed proportional, the motion continuously of size and Orientation of signal code in magnetic field, drive push rod (40) motion through the pin that is fixed together again, thus the motion of control valve core of the spool valve.
Said guide pin bushing (20) and pole shoe (50) use same block of material processing and all-in-one to be processed to form from one with the cylinder of pole shoe (50) external diameter as diameter.So can reduce pole shoe (50) that split design brings and the gap between the guide pin bushing (20), be more conducive to the magnetic field closed loop, and then enhance product performance.
The external diameter ratio of the external diameter of said pole shoe (50) and guide pin bushing (20) is 1.1 ~ 1.3:1; In the hope of on the basis of realizing pole shoe (50) self function; Reduce the spillage of material when one-body molded of guide pin bushing (20) and pole shoe (50), further promote the production of product.
The above; Only being embodiments of the invention, is not that the present invention is done any pro forma restriction, though the present invention discloses as above with embodiment; Yet be not in order to limit the present invention; Anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme scope of the present invention, when the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations.In sum, promptly be not break away from technical scheme content of the present invention in every case,, all still belong in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (4)
1. a proportion electro-magnet (100); It comprises the coil assembly (10) with central shaft hole and is mounted on the guide pin bushing (20) in the central shaft hole; Be provided with armature (30) in the said guide pin bushing (20) and be installed on the push rod (40) of armature (30) one sides; Said push rod (40) has a pole shoe (50) towards guide pin bushing (20) opening is one side closed; Said pole shoe (50) middle part is provided with the through hole (501) that supplies push rod (40) to pass, and said guide pin bushing (20) is provided with magnetism-isolating loop (60) near the position of pole shoe (50), it is characterized in that: said guide pin bushing (20) and pole shoe (50) use same block of material to be processed to form.
2. proportion electro-magnet according to claim 1 (100) is characterized in that: it is the cylinder of diameter with pole shoe (50) external diameter that said guide pin bushing (20) and pole shoe (50) all-in-one are processed to form from one.
3. proportion electro-magnet according to claim 2 (100) is characterized in that: the external diameter ratio of the external diameter of said pole shoe (50) and guide pin bushing (20) is 1.1 ~ 1.3:1.
4. according to each described proportion electro-magnet (100) in the claim 1 to 3, it is characterized in that: said magnetism-isolating loop (60) is separated magnetic copper ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102785356A CN102768892A (en) | 2012-08-08 | 2012-08-08 | Proportional electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102785356A CN102768892A (en) | 2012-08-08 | 2012-08-08 | Proportional electromagnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102768892A true CN102768892A (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102785356A Pending CN102768892A (en) | 2012-08-08 | 2012-08-08 | Proportional electromagnet |
Country Status (1)
| Country | Link |
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| CN (1) | CN102768892A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117148A (en) * | 2013-02-25 | 2013-05-22 | 四川省宜宾普什驱动有限责任公司 | Proportion electromagnet |
| CN104373659A (en) * | 2014-11-04 | 2015-02-25 | 浙江大学 | Electromagnet structure for pole shoe and guide sleeve integrated valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053369U (en) * | 1989-05-17 | 1990-02-21 | 无锡县大力电器厂 | Electromagnet with large path rate |
| US6520600B1 (en) * | 2000-09-09 | 2003-02-18 | Kelsey-Hayes Company | Control valve with single piece sleeve for a hydraulic control unit of vehicular brake systems |
| CN101776172A (en) * | 2010-03-23 | 2010-07-14 | 浙江大学 | High voltage-resistant permanent magnet-shield high speed switching electromagnet |
| CN202720985U (en) * | 2012-08-08 | 2013-02-06 | 艾通电磁技术（昆山）有限公司 | Proportion electromagnet |
-
2012
- 2012-08-08 CN CN2012102785356A patent/CN102768892A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053369U (en) * | 1989-05-17 | 1990-02-21 | 无锡县大力电器厂 | Electromagnet with large path rate |
| US6520600B1 (en) * | 2000-09-09 | 2003-02-18 | Kelsey-Hayes Company | Control valve with single piece sleeve for a hydraulic control unit of vehicular brake systems |
| CN101776172A (en) * | 2010-03-23 | 2010-07-14 | 浙江大学 | High voltage-resistant permanent magnet-shield high speed switching electromagnet |
| CN202720985U (en) * | 2012-08-08 | 2013-02-06 | 艾通电磁技术（昆山）有限公司 | Proportion electromagnet |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117148A (en) * | 2013-02-25 | 2013-05-22 | 四川省宜宾普什驱动有限责任公司 | Proportion electromagnet |
| CN103117148B (en) * | 2013-02-25 | 2015-07-22 | 四川省宜宾普什驱动有限责任公司 | Proportion electromagnet |
| CN104373659A (en) * | 2014-11-04 | 2015-02-25 | 浙江大学 | Electromagnet structure for pole shoe and guide sleeve integrated valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121107 |