CN101615477B - Biconical disc ratio electromagnet - Google Patents
Biconical disc ratio electromagnet Download PDFInfo
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- CN101615477B CN101615477B CN2009100979891A CN200910097989A CN101615477B CN 101615477 B CN101615477 B CN 101615477B CN 2009100979891 A CN2009100979891 A CN 2009100979891A CN 200910097989 A CN200910097989 A CN 200910097989A CN 101615477 B CN101615477 B CN 101615477B
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Abstract
The invention discloses a biconical disc ratio electromagnet. An armature (1) is formed by enclosing a bottom (11) and an annular side wall, wherein, a V-shaped groove (12) is arranged on the annular side wall, and the annular side wall is positioned in an annular space formed by a magnetic conduction iron core column (7) and a magnetic conduction outer shell (4); a clearance between the annular side wall and the magnetic conduction outer shell (4) forms a radial operating air gap I (101), and a clearance between the annular side wall and the magnetic conduction iron core column (7) forms a radial operating air gap II (102); a push rod (3) penetrates through the bottom of the magnetic conduction iron core column (7) and the bottom (11) of the armature (1), is fixedly connected with the armature (1), and is in the relationship of relative slip with the magnetic conduction iron core column (7); and a clearance between the bottom (11) and the magnetic conduction iron core column (7) forms an axial operating air gap (103). The biconical disc ratio electromagnet has ratio specialty and high ratio of output force to power.
Description
Technical field
The present invention relates to a kind of proportion electro-magnet of tray type structure.
Background technology
Proportion electro-magnet has the displacement-force characteristic of level, used widely in ratio control system, but version is based on helix tube type at present, is applicable to drive middle-size and small-size load, is difficult to use in some occasions that the load power output is had relatively high expectations.And the tray type structure DC electromagnet has very big electromagnetic attraction in very short stroke, but traditional coiled electrical magnet suction reduces rapidly along with the increase of working gas gap, be difficult to satisfy the output requirement of ratio characteristic, so it mainly is applicable to load and the QA occasion that is operated under the attracting state, therefore generally be applied to lifting electromagnet and magnechuck.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of biconical disc ratio electromagnet with ratio characteristic and big power output/power ratio.
In order to solve the problems of the technologies described above, the invention provides a kind of biconical disc ratio electromagnet, comprise hollow the magnetic conductive shell body, in establish conducting magnet core post, coil, armature and the push rod of cavity; The conducting magnet core column sleeve is contained in the inner chamber of magnetic conductive shell body, in conducting magnet core post and the formed annular space of magnetic conductive shell body coil is set; Armature is surrounded by bottom and annular sidewall and forms, and V-shaped groove is set on annular sidewall; Annular sidewall is positioned at conducting magnet core post and the formed annular space of magnetic conductive shell body; Gap between the inner surface of the outer surface of annular sidewall and magnetic conductive shell body forms radially working gas gap I, gap between the outer surface of the inner surface of annular sidewall and conducting magnet core post forms radially working gas gap II, push rod runs through the bottom of conducting magnet core post and armature, push rod and armature are fixedly linked, push rod and conducting magnet core post slide relative; Gap between armature bottom and the conducting magnet core post forms axial working gas gap.
Improvement as biconical disc ratio electromagnet of the present invention: in the axial working gas gap between armature bottom and conducting magnet core post the banking stop that non-magnet material is made is set, banking stop is sleeved on the push rod.
Further improvement as biconical disc ratio electromagnet of the present invention: the outside cone angle of V-shaped groove is 41～43 ° with the axial angle α that becomes, and the inboard cone angle of V-shaped groove is 40～42 ° with the axial angle β that becomes.
Further improvement as biconical disc ratio electromagnet of the present invention: sliding support parts and conducting magnet core post are fixedly linked, and push rod slides in the sliding support parts.
Further improvement as biconical disc ratio electromagnet of the present invention: conducting magnet core post, magnetic conductive shell body and armature are magnetic conductor.
Further improvement as biconical disc ratio electromagnet of the present invention: push rod is made by non-magnet material.
For the current signal with input is converted to power or displacement in proportion, the present invention has designed the proportion electro-magnet of above-mentioned biconical disc structure.
Biconical disc ratio electromagnet of the present invention has following beneficial effect:
1, adopts the proportion electro-magnet of biconical disc armature structure, combine the advantage of traditional helix tube type proportion electro-magnet and coiled electrical magnet effectively, improved power output/power ratio, and had the good proportion characteristic.
2, simple in structure, easy accessibility, low price.
Biconical disc ratio electromagnet of the present invention has been carried out the static characteristic experimental study, obtain its displacement force characteristic stagnant ring curve and other performance index, as shown in Figure 6, show that biconical disc ratio electromagnet has the displacement-force characteristic of level of approximation, promptly along with the variation of displacement, the power output substantially constant.Therefore, biconical disc ratio electromagnet of the present invention can solve the existing following problem of coiled electrical magnet: reduce rapidly along with the increase of working gas gap, be difficult to satisfy the output requirement of ratio characteristic.
The structure and the performance of 060 type helix tube type proportion electro-magnet of biconical disc ratio electromagnet of the present invention and existing market supply are carried out the overall target contrast, show that biconical disc ratio electromagnet of the present invention not only has good horizontal displacement-force characteristic, and the more traditional helix tube type proportion electro-magnet of power output/power ratio is big.Concrete correction data is as shown in table 1:
Table 1,
| Parameter name | 060 type (the helix tube type proportion electro-magnet of existing market supply) | Biconical disc ratio electromagnet (the present invention) |
| Effective travel+idle stroke/ |
4+4 | 4+4 |
| Specified electromagnetism power output/N | 145 | 160 |
| Specified coil resistance/Ω | 16.7 | 23 |
| Rated current/A | 1.11 | 0.8 |
| Rated power/W | 21 | 15 |
| Overall dimensions/mm 3 | 60×60×88 | 60×60×87 |
Therefore, biconical disc ratio electromagnet of the present invention can be widely used in small-sized or miniature valve is joined the valve that requires proportional control in oily formula single plunger pump and the various fluid transmission.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is the structure explosive view of biconical disc ratio electromagnet of the present invention;
Fig. 2 is the structural scheme of mechanism of analysing and observe after Fig. 1 assembles;
Fig. 3 is the partial schematic diagram after Fig. 2 amplifies;
Fig. 4 is the perspective view after armature 1 among Fig. 2 and push rod 3 combinations;
Fig. 5 is the magnetic circuit principle schematic of Fig. 1;
Fig. 6 is the stagnant ring of the displacement force characteristic curve chart of biconical disc ratio electromagnet of the present invention.
Among the figure: 1, armature, 2, banking stop, 3, push rod, 4, magnetic conductive shell body, 5, coil, 6, the sliding support parts, 7, conducting magnet core post, 8, the sliding support parts, 11, bottom (refering in particular to the bottom of armature), 12, V-shaped groove, 13, outside cone angle, 14, inboard cone angle, 101, working gas gap I radially, 102, working gas gap II radially, 103, axial working gas gap, 41, wire guide.
Embodiment
Fig. 1～Fig. 4 has been in conjunction with having provided a kind of biconical disc ratio electromagnet, comprise hollow magnetic conductive shell body 4, in establish the conducting magnet core post 7 of cavity, coil 5, armature 1 and the push rod 3 of annular; Armature 1, conducting magnet core post 7 and magnetic conductive shell body 4 are made by soft magnetic material, and push rod 3 is made by non-magnet material.Magnetic conductive shell body 4 is cube shell bodies of a hollow, and conducting magnet core post 7 is sleeved in the inner chamber of magnetic conductive shell body 4, and conducting magnet core post 7 is fixedly linked with magnetic conductive shell body 4; In conducting magnet core post 7 and magnetic conductive shell body 4 formed annular spaces, coil 5 is set.On magnetic conductive shell body 4, be provided with wire guide 41 with the intracavity inter-connection of magnetic conductive shell body 4; Therefore the lead of coil 5 links to each other with coil 5 after can passing this wire guide 41.
The bottom 11 of armature 1 is provided with through hole, and bottom 11 is fixedly linked with push rod 3; Push rod 3 runs through the cavity in the conducting magnet core post 7 and the through hole of bottom 11, and is supported on respectively in the cavity of conducting magnet core post 7 left and right sides by sliding support parts 6 and sliding support parts 8.
Formed gap forms axial working gas gap 103 between the bottom 11 of armature 1 and the left side of conducting magnet core post 7, and axially the minimum working gas gap state of working gas gap 103 is that 1mm place, maximum functional air gap state are that 5mm place, idle stroke are 5～9mm.When axial working gas gap 103 during at 5mm, inboard cone angle 14 is in the critical point (this moment, outside cone angle 13 broke away from as yet with magnetic conductive shell body 4) that just breaks away from conducting magnet core post 7; After axially working gas gap 103 surpassed 5mm, inboard cone angle 14 just was in disengaged position with conducting magnet core post 7, and at this moment electromagnetic force descends rapidly, so with the critical point of 5mm place as impulse stroke and idle stroke.In this axial working gas gap 103 banking stop 2 that non-magnet material is made is housed, this banking stop 2 is sleeved on the outer surface of push rod 3, and the effect of this banking stop 2 is the power output characteristic disproportional sections when eliminating small air gap.
The operation principle of biconical disc ratio electromagnet of the present invention is as follows:
Lead provides electric current to coil 5 after passing wire guide 41, and coil 5 energising backs produce magnetic field, form two magnetic circuits, are respectively magnetic circuit φ
1With magnetic circuit φ
2, as shown in Figure 5.
Magnetic circuit φ
1By conducting magnet core post 7 working gas gap 103 vertically, enter armature 1, pass radially along armature 1 Outer Taper (i.e. the outer surface of outside cone angle 13 and armature 1 annular sidewall form cone) that working gas gap I 101 enters magnetic conductive shell body 4, get back to conducting magnet core post 7 then again.
Magnetic circuit φ
2, by conducting magnet core post 7 working gas gap II 102 radially, enter armature 1 inner cone (be inboard cone angle 14 form with the inner surface of armature 1 annular sidewall cone), enter armature 1 Outer Taper and magnetic circuit φ then again
1Converge mutually, pass then radially that working gas gap I 101 enters magnetic conductive shell body 4, get back to conducting magnet core post 7 then again.
The formation of this special shape magnetic circuit mainly is owing to adopted the armature of biconical disc structure.Because electromagnetic action, by working gas gap I 101 radially and radially the magnetic flux of working gas gap II102 produced the axial thrust load F of two radial loads
M1, F
M2, and produce end face axial power F by the magnetic flux of axial working gas gap 103
M3, the three's is comprehensive, has just obtained the power output F of whole disc ratio electromagnet.In the working region, electromagnetic force is the horizontal force characteristic relation substantially with respect to the displacement of armature 1.
The course of work is specific as follows:
After coil 5 energising, armature 1 moves right from left end, is that 9mm is that 5mm place moves to axial air-gap from axial air-gap promptly, and this trip 9mm～5mm is an idle stroke, and electromagnet power output F is rapid increase along with reducing of axial air-gap.Armature 1 continues to move right, and is that 5mm is that the 1mm place moves to axial air-gap from axial air-gap promptly, contacts with conducting magnet core post 7 until banking stop 2, and this moment, axial air-gap just was positioned in the 1mm place.The axial working gas gap 103 of axial air-gap maximum axial working gas gap 103 during for 5mm, axial air-gap minimum during for 1mm, this trip 5mm～1mm is an impulse stroke, electromagnet power output F substantially constant in impulse stroke.
At last, it is also to be noted that what more than enumerate only is a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (6)
1. biconical disc ratio electromagnet, comprise hollow magnetic conductive shell body (4), in establish conducting magnet core post (7), coil (5), armature (1) and the push rod (3) of cavity; Conducting magnet core post (7) is sleeved in the inner chamber of magnetic conductive shell body (4), in conducting magnet core post (7) and the formed annular space of magnetic conductive shell body (4) coil (5) is set; It is characterized in that: armature (1) is surrounded by bottom (11) and annular sidewall and forms, and V-shaped groove (12) is set on annular sidewall, and described annular sidewall is positioned at conducting magnet core post (7) and the formed annular space of magnetic conductive shell body (4); Gap between the inner surface of the outer surface of annular sidewall and magnetic conductive shell body (4) forms radially working gas gap I (101), and the gap between the outer surface of the inner surface of annular sidewall and conducting magnet core post (7) forms radially working gas gap II (102); Described push rod (3) runs through the bottom (11) of conducting magnet core post (7) and armature (1), and push rod (3) is fixedly linked with armature (1), push rod (3) and conducting magnet core post (7) slide relative; Gap between bottom (11) and the conducting magnet core post (7) forms axial working gas gap (103).
2. a kind of biconical disc ratio electromagnet according to claim 1, it is characterized in that: the banking stop (2) that non-magnet material is made is set in the gap between bottom (11) and conducting magnet core post (7), and described banking stop (2) is sleeved on the push rod (3).
3. a kind of biconical disc ratio electromagnet according to claim 1 and 2 is characterized in that: two limits of V-shaped groove (12) are respectively angle α and angle β with the axial angle that becomes, and described angle α is 41～43 °, and angle β is 40～42 °.
4. a kind of biconical disc ratio electromagnet according to claim 3 is characterized in that: sliding support parts (6,8) are fixedly linked with conducting magnet core post (7), and push rod (3) slides in sliding support parts (6,8).
5. a kind of biconical disc ratio electromagnet according to claim 4 is characterized in that: conducting magnet core post (7), magnetic conductive shell body (4) and armature (1) are magnetic conductor.
6. a kind of biconical disc ratio electromagnet according to claim 5 is characterized in that: push rod (3) is made by non-magnet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100979891A CN101615477B (en) | 2009-04-28 | 2009-04-28 | Biconical disc ratio electromagnet |
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| CN2009100979891A CN101615477B (en) | 2009-04-28 | 2009-04-28 | Biconical disc ratio electromagnet |
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| CN101615477B true CN101615477B (en) | 2011-04-06 |
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| CN2009100979891A Expired - Fee Related CN101615477B (en) | 2009-04-28 | 2009-04-28 | Biconical disc ratio electromagnet |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984496B (en) * | 2010-08-31 | 2012-04-25 | 浙江大学 | K-type disc proportional electromagnet |
| CN101984495B (en) * | 2010-08-31 | 2012-07-25 | 浙江大学 | Stepped disc type ratio electromagnet |
| CN103117147B (en) * | 2012-12-31 | 2015-10-14 | 杭州沪宁电梯配件有限公司 | A kind of disc type ratio electromagnet end portion structure |
| CN104167274B (en) * | 2014-08-20 | 2017-02-22 | 浙江万向精工有限公司 | Proportional electromagnet |
| CN107516958B (en) * | 2016-06-15 | 2020-12-01 | 德昌电机(深圳)有限公司 | Rotor, motor with rotor and electric tool |
| CN206412163U (en) | 2016-08-16 | 2017-08-15 | 精进电动科技股份有限公司 | A kind of Split type electric magnet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4097833A (en) * | 1976-02-09 | 1978-06-27 | Ledex, Inc. | Electromagnetic actuator |
| CN101142647A (en) * | 2005-03-16 | 2008-03-12 | 西门子公司 | Magnetic actuating device |
-
2009
- 2009-04-28 CN CN2009100979891A patent/CN101615477B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4097833A (en) * | 1976-02-09 | 1978-06-27 | Ledex, Inc. | Electromagnetic actuator |
| CN101142647A (en) * | 2005-03-16 | 2008-03-12 | 西门子公司 | Magnetic actuating device |
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Granted publication date: 20110406 Termination date: 20130428 |