CN102758755B - Electromagnetic linear piston pump - Google Patents
Electromagnetic linear piston pump Download PDFInfo
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- CN102758755B CN102758755B CN201210264321.3A CN201210264321A CN102758755B CN 102758755 B CN102758755 B CN 102758755B CN 201210264321 A CN201210264321 A CN 201210264321A CN 102758755 B CN102758755 B CN 102758755B
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- concentrating flux
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Abstract
The invention relates to an electromagnetic linear piston pump, which comprises a piston body, a cylinder body and an electromagnetic coil. The electromagnetic linear piston pump is characterized in that the cylinder body is shaped as a polygonal prism; two ends inside the cylinder body are provided with columnar cavities; the piston body is arranged inside the cylinder body; two ends of the piston body are respectively in liquid-tight movable fit with the columnar cavities at two ends; a group of electromagnetic assembly is arranged on at least one side surface of the cylinder body; the electromagnetic assembly comprises an internal magnetic conductive plate, an external magnetic conductive plate, an internal magnetic exciting coil and an external magnetic exciting coil, wherein the internal magnetic conductive plate and the external magnetic conductive plate are parallel to the side surface of the cylinder body, and the internal magnetic exciting coil and the external magnetic exciting coil are respectively sleeved on the internal magnetic conductive plate and the external magnetic conductive plate; and the internal magnetic conductive plate and the external magnetic conductive plate are in linkage with the piston body. According to the invention, because the internal magnetic exciting coil and the external magnetic exciting coil are respectively sleeved on the internal magnetic conductive plate and the external magnetic conductive plate, the magnetic field of the electromagnetic linear piston pump is generated by externally connecting the internal magnetic exciting coil and the external magnetic exciting coil to an excitation source, wherein the strength of the magnetic field is related to the excitation current and cannot be influenced by service time and environment temperature; and therefore the electromagnetic linear piston pump is very reliable and wide in adaptability.
Description
Technical field
The present invention relates to a kind of linear piston pump, specifically a kind of electromagnetic linear piston pump.
Background technique
Working pressure is large owing to having for magnetic linear piston pump, structure is simple, energy consumption and noise is low, long service life, more and more comes into one's own, applies more and more extensive.The mechanical motion of magnetic linear piston pump and the similar plunger pump of working principle are all the do relatively reciprocating motion suction and the extrusion that make the working chamber volume sealed in pump change to realize fluid medium that utilize piston and cylinder body.Disclosed in 15 days December in 2004, a kind of magnetic linear piston pump disclosed in the patent of invention " magnetic linear piston pump " that publication number is CN 1554868, its structure comprises housing and the cylinder body that is arranged on wherein and piston, piston is arranged in cylinder body, make axial activity air-tight fit, the outer circumferential face of cylinder body is provided with electromagnetic coil, electromagnetic coil is fixed in housing, electromagnetic coil is connected with oscillation power, also permanent magnet is provided with at the outer circumferential face of cylinder body, permanent magnet and cylinder body are located by connecting, one end of piston is fixedly connected with housing, the other end is located among the endoporus of cylinder body, piston is provided with fluid through-hole, fluid through-hole or with relative set first one-way valve in the inner chamber on cylinder body and the second one-way valve, and the chamber that formation three is relatively independent successively, namely, low-pressure cavity, capacity active chamber, hyperbaric chamber, low-pressure cavity is communicated with intake channel, hyperbaric chamber is communicated with outlet pipe.But, due to the employing of its magnetic material of existing magnetic linear piston pump is permanent magnet, through the use in one period, the magnetic intensity of permanent magnet will weaken gradually, cause the power drop of magnetic linear piston pump, high temperature also can produce adverse influence to the magnetic intensity of permanent magnet simultaneously, limits the application area of this kind of magnetic linear piston pump.
Summary of the invention
The object of the invention is to provide a kind ofly be applicable to the higher environment of temperature, working life longer electromagnetic linear piston pump to overcome the deficiencies in the prior art.
To achieve these goals, the invention discloses a kind of electromagnetic linear piston pump, comprise piston body, cylinder body and electromagnetic coil, it is characterized in that: described cylinder body is multi-edge column-shaped, described cylinder interior two is provided with column cavity volume, described piston body is arranged on cylinder interior, the two ends of described piston body are liquid-tight with the column cavity volume at two respectively dynamicly to be coordinated, the column cavity volume at two is made to form first piston chamber and the second piston cavity respectively, the two ends of described piston body form first piston body and the second piston body respectively, the described first piston chamber end face relative with first piston body end face is provided with first and enters one-way valve and first and go out one-way valve, the described second piston cavity end face relative with the second piston body end face is provided with second and enters one-way valve and second and go out one-way valve, at least one side of described cylinder body is provided with one group of electromagnetic assembly, described electromagnetic assembly comprises concentrating flux plate and one piece of outer concentrating flux plate in one piece that be arranged in parallel with described side of cylinder block, one at least described interior concentrating flux plate and outer concentrating flux plate is arranged with field coil, two ends on described interior concentrating flux plate and outer concentrating flux plate opposing side are respectively equipped with platform outstanding in opposite directions, described interior concentrating flux plate and outer concentrating flux plate adopt soft magnetic material to make, the pole polarity produced on platform outstanding in opposite directions after field coil energising is contrary, the outer side surface of described cylinder body is provided with coil supports, described electromagnetic coil becomes tubular to be wrapped on coil supports vertically with distributing, the barrel that described electromagnetic coil is formed is between described interior concentrating flux plate and the outstanding platform of outer concentrating flux plate, the side that described cylinder body is provided with electromagnetic assembly is provided with axial slide elongated hole, on described piston body, the side radial direction of corresponding chute elongated hole is provided with the attachment post with described chute elongated hole Spielpassung, and described attachment post passes chute elongated hole and described interior concentrating flux plate and outer concentrating flux plate and is fixedly connected to form interlock.
Compared with prior art, the present invention is due at least described interior concentrating flux plate and outer concentrating flux plate being arranged with field coil, described interior concentrating flux plate and outer concentrating flux plate adopt soft magnetic material to make, the magnetic field of electromagnetic linear piston pump is produced by the external excitation power supply of field coil, the intensity in magnetic field is relevant with field current, can not service time and ambient temperature effect be subject to, therefore very reliable, wide adaptability.
As the further setting of the present invention, each side of described cylinder body is equipped with one group of electromagnetic assembly.Such setting, can make electromagnetic linear piston pump have larger power.
Arrange further as of the present invention, the seamed edge of described cylinder body is provided with convex tendon again, and described convex tendon forms described coil supports, and described interior concentrating flux plate and interior magnetic are arranged in the groove on described cylinder body same side between the convex tendon of both sides.Simply, preparation process is easy, and cost is lower for the cylinder body of this set and coil supports structure.
Further arrange as of the present invention, described cylinder body comprises the end cap at cylinder and two ends, the end cap at described two ends is provided with seal ring respectively and between cylinder both ends of the surface, the end cap at described cylinder and two ends is integrally connected by some axial screws around the setting of cylinder outer wall and nut, and described screw rod forms described coil supports.Simply, preparation process is easy, sound construction, and mechanical strength is high for the cylinder body of this set and coil supports structure.
Further arrange again as of the present invention, described cylinder body be four prism type to hexagon, be preferably four prism type, cross section is rectangle.The cylinder body of such shape is convenient to processing.
Below in conjunction with drawings and the specific embodiments, the invention will be further described.
Accompanying drawing explanation
Accompanying drawing 1 is specific embodiment of the invention surface structure schematic perspective view;
Accompanying drawing 2 is specific embodiment of the invention partial structurtes exploded views;
Accompanying drawing 3 is specific embodiment of the invention housing structure schematic perspective view;
Accompanying drawing 4 is specific embodiment of the invention piston structure schematic perspective view;
Accompanying drawing 5 is specific embodiment of the invention piston body and cylinder body assembly structure schematic diagram;
Accompanying drawing 6 is the specific embodiment of the invention 2 internal structure sectional view;
Accompanying drawing 7 is accompanying drawing 6 I portion partial enlarged drawing;
Accompanying drawing 8 is accompanying drawing 6 II portion partial enlarged drawing;
Embodiment
Specific embodiment 1
As shown in Figure 1, 2, electromagnetic linear piston pump still comprises piston body 1, cylinder body 2 and electromagnetic coil 3, described cylinder body 2 is multi-edge column-shaped, is usually advisable to hexagon with four prism type, preferred four prism type, in this specific embodiment, as shown in Figure 3, described cylinder body 2 is four prism type, and cross section is rectangle, the present invention defines two electromagnetic linear piston pump in same cylinder body 2, and the two ends of cylinder body 2 outer surface are equipped with electromagnetic coil 3.As Fig. 4, shown in 6, described cylinder body 2 inside is that column cavity volume two becomes to be symmetrical arranged, described piston body 1 is the cross section Cylindrical object identical with piston cavity cross section, described piston body 1 is arranged on the middle part of column cavity volume, the two ends of described piston body 1 are liquid-tight with the column cavity volume at two respectively dynamicly to be coordinated, the column cavity volume at two is made to form first piston chamber 201 and the second piston cavity 202 respectively, the two ends of described piston body 1 form first piston body 101 and the second piston body 102 respectively, described first piston chamber 201 end face relative with first piston body 101 end face is provided with first and enters one-way valve 4 and first and go out one-way valve 5, described second piston cavity 202 end face relative with the second piston body 102 end face is provided with second and enters one-way valve 6 and second and go out one-way valve 7.At least one side of described cylinder body 2 is provided with one group of electromagnetic assembly 8, as shown in Figure 2, for making this electromagnetic linear piston pump have larger power, in this specific embodiment cylinder body 2 each side on be equipped with one group of electromagnetic assembly 8.Described electromagnetic assembly 8 comprises concentrating flux plate 801 and one piece of outer concentrating flux plate 802 in one piece that be arranged in parallel with described cylinder body 2 side, one at least described interior concentrating flux plate 801 and outer concentrating flux plate 802 is arranged with field coil, as shown in figs 6-8, in order to add magnet excitation effect in this specific embodiment, interior concentrating flux plate 801 and outer concentrating flux plate 802 are arranged with interior field coil 803 and outer field coil 804 respectively, two ends on described interior concentrating flux plate 801 and outer concentrating flux plate 802 opposing side are respectively equipped with platform outstanding in opposite directions, described interior concentrating flux plate 801 and outer concentrating flux plate 802 adopt soft magnetic material to make, the pole polarity produced on platform outstanding in opposite directions after interior field coil 803 and outer field coil 804 are energized is contrary, the outer side surface of described cylinder body 2 is provided with coil supports, the effect being provided with coil supports is to have certain distance between electromagnetic coil 3 and outer surface of cylinder block, can be had living space concentrating flux plate 801 and interior field coil 803 in settling, and described electromagnetic coil 3 becomes tubular to be wrapped on coil supports with distributing vertically.Described cylinder body 2 can be the end cap comprising cylinder and two ends, the end cap at described two ends is provided with seal ring respectively and between cylinder both ends of the surface, the end cap at described cylinder and two ends is integrally connected by some axial screws around the setting of cylinder outer wall and nut, screw rod is in every bar seamed edge position of cylinder body 2, described screw rod forms described coil supports, and simply, preparation process is easy for the cylinder body 2 of this set and coil supports structure, cost is lower, but mechanical strength is relatively lower slightly.In this specific embodiment, the seamed edge of described cylinder body 2 is provided with convex tendon 203, described convex tendon 203 forms described coil supports, convex tendon 203 can be extend to whole piece seamed edge, also can be only correspond to the part that two ends are wound with electromagnetic coil 3, described convex tendon 203 is in order to make cylinder body 2 surface have space that one is enough to settle interior concentrating flux plate 801, described interior concentrating flux plate 801 is arranged in the groove on described cylinder body 2 same side between both sides convex tendon 203, the platform that described interior concentrating flux plate 801 and outer concentrating flux plate 802 two ends are given prominence in opposite directions is oppositely arranged, gap is left between described platform, described electromagnetic coil 3 becomes tubular to be wrapped on the convex tendon 203 of each seamed edge with distributing vertically, the barrel that described electromagnetic coil 3 is formed is between described interior concentrating flux plate 801 and the outstanding platform of outer concentrating flux plate 802, described gap reduces meeting to be wound with under the prerequisite of electromagnetic coil 3 as far as possible, also can be first to be provided with on convex tendon 203 after laying or support again around on, described electromagnetic coil 3 is in the gap between the platform that is oppositely arranged, four sides of cylinder body 2 are provided with chute elongated hole 204, the length of chute elongated hole 204 is the running length of piston body 1 design, on described piston body 1, four equal radial directions of center side of corresponding chute elongated hole 204 are provided with the attachment post 103 with described chute elongated hole 204 Spielpassung, described attachment post 103 is fixedly connected to form interlock through chute elongated hole 204 and described interior concentrating flux plate 801 and outer concentrating flux plate 802.In this specific embodiment, described interior concentrating flux plate 801 and outer concentrating flux plate 802 are equipped with the through hole with attachment post 103 Spielpassung, described attachment post 103 is through the through hole on chute elongated hole 204 and described interior concentrating flux plate 801 and outer concentrating flux plate 802 and be fixedly connected to form interlock with described interior concentrating flux plate 801 and outer concentrating flux plate 802, certainly, the mode of connection is not limited to above-mentioned a kind of structure.In this specific embodiment, described interior field coil 803 and outer field coil 804 are first each around on the coil carrier 9 of " mouth " font, described interior concentrating flux plate 801 or outer concentrating flux plate 802 are through coil carrier 9 center, coil carrier 9 is fixed on cylinder body 2, and the magnetic line of force that described magnetizing coil produces forms a closed annular along described interior concentrating flux plate 801, platform, gap, outer concentrating flux plate 802, platform, gap and interior concentrating flux plate 801.
In above-mentioned specific embodiment, entering one-way valve and go out one-way valve can be diaphragm type structure, also can be the mode arranging steel ball and Compress Spring in valve pocket, all can meet the demands.
If be only at one end provided with piston body, piston cavity and enter one-way valve and go out one-way valve, namely become single electromagnetic linear piston pump.
Claims (6)
1. an electromagnetic linear piston pump, comprise piston body, cylinder body and electromagnetic coil, it is characterized in that: described cylinder body is multi-edge column-shaped, described cylinder interior two is provided with column cavity volume, described piston body is arranged on cylinder interior, the two ends of described piston body are liquid-tight with the column cavity volume at two respectively dynamicly to be coordinated, the column cavity volume at two is made to form first piston chamber and the second piston cavity respectively, the two ends of described piston body form first piston body and the second piston body respectively, the described first piston chamber end face relative with first piston body end face is provided with first and enters one-way valve and first and go out one-way valve, the described second piston cavity end face relative with the second piston body end face is provided with second and enters one-way valve and second and go out one-way valve, at least one side of described cylinder body is provided with one group of electromagnetic assembly, described electromagnetic assembly comprises concentrating flux plate and one piece of outer concentrating flux plate in one piece that be arranged in parallel with described side of cylinder block, one at least described interior concentrating flux plate and outer concentrating flux plate is arranged with field coil, two ends on described interior concentrating flux plate and outer concentrating flux plate opposing side are respectively equipped with platform outstanding in opposite directions, described interior concentrating flux plate and outer concentrating flux plate adopt soft magnetic material to make, the pole polarity produced on platform outstanding in opposite directions after field coil energising is contrary, the outer side surface of described cylinder body is provided with coil supports, described electromagnetic coil becomes tubular to be wrapped on coil supports vertically with distributing, the barrel that described electromagnetic coil is formed is between described interior concentrating flux plate and the outstanding platform of outer concentrating flux plate, the side that described cylinder body is provided with electromagnetic assembly is provided with axial slide elongated hole, on described piston body, the side radial direction of corresponding chute elongated hole is provided with the attachment post with described chute elongated hole Spielpassung, and described attachment post passes chute elongated hole and described interior concentrating flux plate and outer concentrating flux plate and is fixedly connected to form interlock.
2. electromagnetic linear piston pump according to claim 1, is characterized in that: each side of described cylinder body is equipped with one group of electromagnetic assembly.
3. electromagnetic linear piston pump according to claim 1, it is characterized in that: the seamed edge of described cylinder body is provided with convex tendon, described convex tendon forms described coil supports, and described interior concentrating flux plate and interior magnetic are arranged in the groove on described cylinder body same side between the convex tendon of both sides.
4. electromagnetic linear piston pump according to claim 1, it is characterized in that: described cylinder body comprises the end cap at cylinder and two ends, the end cap at described two ends is provided with seal ring respectively and between cylinder both ends of the surface, the end cap at described cylinder and two ends is integrally connected by some axial screws around the setting of cylinder outer wall and nut, and described screw rod forms described coil supports.
5. electromagnetic linear piston pump according to claim 1, is characterized in that: described cylinder body is the one in four prism type, pentagonal prism shape or hexagon.
6. electromagnetic linear piston pump according to claim 1, is characterized in that: described cylinder body is four prism type, and cross section is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210264321.3A CN102758755B (en) | 2012-07-27 | 2012-07-27 | Electromagnetic linear piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210264321.3A CN102758755B (en) | 2012-07-27 | 2012-07-27 | Electromagnetic linear piston pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102758755A CN102758755A (en) | 2012-10-31 |
| CN102758755B true CN102758755B (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210264321.3A Active CN102758755B (en) | 2012-07-27 | 2012-07-27 | Electromagnetic linear piston pump |
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| CN (1) | CN102758755B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089779A (en) * | 2015-07-29 | 2015-11-25 | 徐荣兰 | Linear type four-stroke engine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH630443A5 (en) * | 1978-10-23 | 1982-06-15 | Paul Hotz | Double-acting piston pump |
| GB2241287A (en) * | 1990-02-09 | 1991-08-28 | Nitto Kohki Co | Electromagnetically driven pump |
| CN2102381U (en) * | 1991-08-21 | 1992-04-22 | 镇江船舶学院 | Electromagnetic pump |
| JPH1182293A (en) * | 1997-09-01 | 1999-03-26 | Nippon Control Kogyo Kk | Electromagnetic pump |
| CN2539848Y (en) * | 2002-03-22 | 2003-03-12 | 周义才 | Magnetic energy hydraulic pump |
| DE19846711C2 (en) * | 1998-10-09 | 2003-05-08 | Trumpf Sachsen Gmbh | High pressure pump with linear motor drive |
| CN1554868A (en) * | 2003-12-23 | 2004-12-15 | 俞国淼 | Magnetic linear piston pump |
| WO2005017357A1 (en) * | 2003-07-25 | 2005-02-24 | Chen, Chung Chin | Electromagnetic pump |
| EP1764504A1 (en) * | 2005-09-14 | 2007-03-21 | Karl-Heinz Hirschmann | Electro-magnetically driven dosing pump |
| CN202789375U (en) * | 2012-07-27 | 2013-03-13 | 徐荣兰 | Electromagnetic type linear piston pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008045507A (en) * | 2006-08-18 | 2008-02-28 | Nikki Co Ltd | Electromagnetic fuel pump |
-
2012
- 2012-07-27 CN CN201210264321.3A patent/CN102758755B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH630443A5 (en) * | 1978-10-23 | 1982-06-15 | Paul Hotz | Double-acting piston pump |
| GB2241287A (en) * | 1990-02-09 | 1991-08-28 | Nitto Kohki Co | Electromagnetically driven pump |
| CN2102381U (en) * | 1991-08-21 | 1992-04-22 | 镇江船舶学院 | Electromagnetic pump |
| JPH1182293A (en) * | 1997-09-01 | 1999-03-26 | Nippon Control Kogyo Kk | Electromagnetic pump |
| DE19846711C2 (en) * | 1998-10-09 | 2003-05-08 | Trumpf Sachsen Gmbh | High pressure pump with linear motor drive |
| CN2539848Y (en) * | 2002-03-22 | 2003-03-12 | 周义才 | Magnetic energy hydraulic pump |
| WO2005017357A1 (en) * | 2003-07-25 | 2005-02-24 | Chen, Chung Chin | Electromagnetic pump |
| CN1554868A (en) * | 2003-12-23 | 2004-12-15 | 俞国淼 | Magnetic linear piston pump |
| EP1764504A1 (en) * | 2005-09-14 | 2007-03-21 | Karl-Heinz Hirschmann | Electro-magnetically driven dosing pump |
| CN202789375U (en) * | 2012-07-27 | 2013-03-13 | 徐荣兰 | Electromagnetic type linear piston pump |
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| CN102758755A (en) | 2012-10-31 |
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