CN111322217B - Double-acting electromagnetic direct-drive linear servo pump - Google Patents
Double-acting electromagnetic direct-drive linear servo pump Download PDFInfo
- Publication number
- CN111322217B CN111322217B CN202010338261.XA CN202010338261A CN111322217B CN 111322217 B CN111322217 B CN 111322217B CN 202010338261 A CN202010338261 A CN 202010338261A CN 111322217 B CN111322217 B CN 111322217B
- Authority
- CN
- China
- Prior art keywords
- magnetic yoke
- valve
- active
- hydraulic cylinder
- cylinder body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 claims abstract description 66
- 230000033001 locomotion Effects 0.000 claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 230000004907 flux Effects 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 abstract description 7
- 230000004044 response Effects 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
- F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/109—Valves; Arrangement of valves inlet and outlet valve forming one unit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
Abstract
The invention relates to a double-acting electromagnetic direct-drive linear servo pump, which comprises a displacement sensor, a connecting plate, an end cover, an outer magnetic yoke, an inner magnetic yoke, an actuator rotor, a hydraulic cylinder body, a piston, an active one-way valve group and a permanent magnet array, and is characterized in that the outer magnetic yoke and the inner magnetic yoke are coaxially connected through the end cover, an air gap is formed between the outer magnetic yoke and the inner magnetic yoke, and the outer magnetic yoke is fixedly connected with the end cover, the hydraulic cylinder body and the displacement sensor to serve as a stator; the actuator rotor is integrated with the piston through a connecting plate and is used as a rotor; the active check valve group is arranged on the end face of the hydraulic cylinder body, and the controller controls the movement of the actuator rotor in real time according to the actuator rotor displacement signal acquired by the displacement sensor and simultaneously controls the opening and closing of the active check valve group: the liquid inlet valve is opened in the process of increasing the volume of the working cavity, the liquid outlet valve is opened in the process of reducing the volume of the working cavity, and the flow direction is changed by changing the setting of the active one-way valve, so that the efficiency can be improved by adjusting the movement phase. The invention realizes the bidirectional servo control of the linear pump with high response, high precision and high efficiency.
Description
Technical Field
The invention relates to the technical field of plunger pumps, in particular to an electromagnetic direct-drive plunger pump.
Background
The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like, and is widely applied to occasions requiring high pressure, high flow and flow regulation. The swash plate type plunger pump has high efficiency and good pressure resistance, can realize various variable functions, and is a main stream plunger pump in the current market. However, the transmission parts are more, the movement form is complex, and the further improvement of the performance is limited.
Along with the development of the linear direct drive technology, a linear motor is adopted to directly drive a piston of the plunger pump, so that a motion conversion mechanism from rotation of a 'sloping cam plate' and the like to linear motion is canceled, and the realization of efficient direct drive becomes an important trend of the development of the plunger pump. However, the hydraulic pump driven by the linear motor completes pumping work under the reciprocating action of the linear motor, so that unidirectional transmission of fluid is realized, and the technical difficulty is that how to realize bidirectional fluid transmission of the linear-driven hydraulic pump. In addition, the passive check valve is widely applied to the hydraulic pump, has mature technology, but the opening and closing delays influence the further improvement of the working efficiency of the hydraulic pump.
According to the double-acting electromagnetic direct-drive linear servo pump, a linear motor rotor is adopted to directly drive a hydraulic cylinder piston to reciprocate, liquid pumping is completed in a liquid cavity of a pump under the flow distribution of an active one-way valve group, and meanwhile, the output flow direction of a linear hydraulic pump is changed by mutually exchanging the arrangement of a liquid outlet valve and a liquid inlet valve in the active one-way valve group; the motion phase of a liquid outlet valve and a liquid inlet valve in the active one-way valve group is adjusted to improve the output efficiency of the hydraulic pump; the electromagnetic direct-drive linear plunger pump is adopted to realize the fluid bidirectional servo control with high precision, rapid response and high efficiency
Disclosure of Invention
The double-acting electromagnetic direct-drive linear servo pump is designed, a linear motor rotor is adopted to directly drive a hydraulic cylinder piston to reciprocate, the pumping cavity is arranged under the distribution flow of the active one-way valve group to finish pumping of liquid, and meanwhile, the output flow direction of the linear hydraulic pump is changed by mutually exchanging the arrangement of a liquid outlet valve and a liquid inlet valve in the active one-way valve group; the motion phase of a liquid outlet valve and a liquid inlet valve in the active one-way valve group is adjusted to improve the output efficiency of the hydraulic pump; the electromagnetic direct-drive linear plunger pump is adopted to realize the fluid bidirectional servo control with high precision, rapid response and high efficiency.
The utility model provides a two effect electromagnetism directly drive linear servo pump, includes displacement sensor (1), connecting plate (2), end cover (3), outer yoke (4), executor active cell (5), interior yoke (6), piston (7), hydraulic cylinder body (8), initiative check valve group (9) and permanent magnetism array (10), its characterized in that includes: the outer magnetic yoke (4) and the inner magnetic yoke (6) are coaxially fixed through the end cover (3), and an air gap is arranged between the outer magnetic yoke and the inner magnetic yoke; one end of the outer magnetic yoke (4) is fixedly connected with the end cover (3) and the fixed part of the displacement sensor (1), the other end of the outer magnetic yoke (4) is fixedly connected with the hydraulic cylinder body (8) to serve as a stator, and an inner cavity formed by the hydraulic cylinder body (8) and the piston (7) is a working cavity; the actuator rotor (5) is coaxially and fixedly connected with the piston (7) through the connecting plate (2), and the actuator rotor (5) and the piston (7) can reciprocate in the air gap and the working cavity to serve as a rotor; the active check valve group (9) is arranged on the end face of the hydraulic cylinder body (8), and the active check valve group (9) is divided into a liquid inlet valve and a liquid outlet valve which respectively comprise; the valve comprises a valve core (9.1), a movable iron core (9.2), a fixed coil (9.3), a shell (9.4), a permanent magnet ring (9.5) and a magnetic conduction ring (9.6). Is characterized in that: the movable iron core (9.2) is axially provided with a cylindrical flow passage, and the valve core (9.1) is fixedly connected with the movable iron core (9.2) and can reciprocate in a cylindrical inner cavity formed by the permanent magnet ring (9.5) and the magnetic conduction ring (9.6); the two axial magnetizing permanent magnet rings (9.5) with opposite magnetizing directions are tightly attached to two ends of the magnetic conducting ring (9.6), and the coil (9.3) is positioned in a circular ring type cylindrical cavity formed by the inner cavity of the shell (9.4), the permanent magnet ring (9.5) and the outer sides of the magnetic conducting ring (9.6); the motion of the movable iron core (9.2) can be controlled by controlling the current of the stator coil (9.3); the active one-way valve group (9) is divided into a liquid inlet valve and a liquid outlet valve according to function setting, the liquid inlet valve is opened in the process of increasing the volume of the working cavity, and the liquid outlet valve is opened in the process of reducing the volume of the working cavity.
The actuator rotor (5) is of a moving coil type or a moving magnetic type, and a Halbach permanent magnet array (10) is adopted to be attached to a magnetic yoke or the actuator rotor (5) in a surface mode to improve air gap magnetic flux density.
The active one-way valve group (9) comprises electromagnetic valves with normally closed liquid inlet valves and normally closed liquid outlet valves, and the quantity of the liquid inlet valves and the liquid outlet valves is equal to or not less than 1; the liquid outlet valve and the liquid inlet valve are mutually exchanged to realize the change of the output flow direction of the linear servo pump; and the motion phases of the liquid outlet valve and the liquid inlet valve are adjusted to improve the output efficiency of the hydraulic pump.
The motion stroke of the movable iron core (9.2) and the valve core (9.1) in the active one-way valve group (9) is the distance from the contact position of the valve core (9.1) and the hydraulic cylinder body (8) to the contact position of the movable iron core (9.2) and the shell (9.4).
The connecting plate (2), the end cover (3), the piston (7) and the hydraulic cylinder body are made of magnetic isolation materials, and the outer magnetic yoke (4), the inner magnetic yoke (6), the movable iron core (9.2), the shell (9.4) and the magnetic conduction ring (9.6) are made of magnetic conduction materials.
The axis of the active one-way valve group (9) is parallel to the axis of the hydraulic cylinder body (8).
According to the double-acting electromagnetic direct-drive linear servo pump, a linear motor rotor is adopted to directly drive a hydraulic cylinder piston to reciprocate, liquid pumping is completed in a liquid cavity of a pump under the flow distribution of an active one-way valve group, and meanwhile, output flow direction change of a linear hydraulic pump is realized by mutually exchanging liquid outlet valves and liquid inlet valve settings in the active one-way valve group; the motion phase of a liquid outlet valve and a liquid inlet valve in the active one-way valve group is adjusted to improve the output efficiency of the hydraulic pump; the electromagnetic direct-drive linear plunger pump is adopted to realize the fluid bidirectional servo control with high precision, rapid response and high efficiency.
The double-acting electromagnetic direct-drive linear servo pump adopts the electromagnetic linear actuator as a driving unit to realize volume servo control, and has the advantages of short power transmission path, high efficiency and energy conservation; the Halbach permanent magnet array is adopted to enhance the intensity of the radial magnetic field in the air gap, so that the output force of the electromagnetic linear actuator is improved, and the dynamic performance of the hydraulic pump is improved.
According to the double-acting electromagnetic direct-drive linear servo pump, the current in the coil is controlled by the controller, and the motion amplitude and frequency of the electromagnetic linear actuator are adjusted through the control of the current, so that the output flow and the pressure of the hydraulic pump are accurately controlled, and the accuracy of fluid control is improved.
According to the double-acting electromagnetic direct-drive linear servo pump, through mutually changing the arrangement of the liquid outlet valve and the liquid inlet valve in the active one-way valve group, the change of the output flow direction of the linear hydraulic pump is realized, and the bidirectional flow distribution of the linear hydraulic pump is realized; and the motion phase of a liquid outlet valve and a liquid inlet valve in the active one-way valve group is regulated so as to further improve the output efficiency of the hydraulic pump.
The double-acting electromagnetic direct-drive linear servo pump has the advantages of compact structure, rapid response, high control precision and the like, and brings great economic benefit after being put into industrial application.
Drawings
FIG. 1 is a schematic diagram of a double-acting electromagnetic direct-drive linear servo pump.
FIG. 2 is a schematic diagram of the flow direction of a liquid in a double-acting electromagnetic direct-drive linear servo pump according to the present invention.
Fig. 3 is a schematic structural diagram of a double-acting electromagnetic direct-drive linear servo pump (an actuator rotor is a moving coil type).
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 3, a double-acting electromagnetic direct-drive linear servo pump comprises a displacement sensor (1), a connecting plate (2), an end cover (3), an outer magnetic yoke (4), an actuator rotor (5), an inner magnetic yoke (6), a piston (7), a hydraulic cylinder body (8), an active one-way valve group (9) and a permanent magnet array (10), and is characterized by comprising: the outer magnetic yoke (4) and the inner magnetic yoke (6) are coaxially fixed through the end cover (3), and an air gap is arranged between the outer magnetic yoke and the inner magnetic yoke; one end of the outer magnetic yoke (4) is fixedly connected with the end cover (3) and the fixed part of the displacement sensor (1), the other end of the outer magnetic yoke (4) is fixedly connected with the hydraulic cylinder body (8) to serve as a stator, and an inner cavity formed by the hydraulic cylinder body (8) and the piston (7) is a working cavity; the actuator rotor (5) is coaxially and fixedly connected with the piston (7) through the connecting plate (2), and the actuator rotor (5) and the piston (7) can reciprocate in the air gap and the working cavity to serve as a rotor; the active check valve group (9) is arranged on the end face of the hydraulic cylinder body (8), and the active check valve group (9) is divided into a liquid inlet valve and a liquid outlet valve which respectively comprise; the valve comprises a valve core (9.1), a movable iron core (9.2), a fixed coil (9.3), a shell (9.4), a permanent magnet ring (9.5) and a magnetic conduction ring (9.6); is characterized in that: the movable iron core (9.2) is axially provided with a cylindrical flow passage, and the valve core (9.1) is fixedly connected with the movable iron core (9.2) and can reciprocate in a cylindrical inner cavity formed by the permanent magnet ring (9.5) and the magnetic conduction ring (9.6); the two axial magnetizing permanent magnet rings (9.5) with opposite magnetizing directions are tightly attached to two ends of the magnetic conducting ring (9.6), and the coil (9.3) is positioned in a circular ring type cylindrical cavity formed by the inner cavity of the shell (9.4), the permanent magnet ring (9.5) and the outer sides of the magnetic conducting ring (9.6); the motion of the movable iron core (9.2) can be controlled by controlling the current of the stator coil (9.3); the active one-way valve group (9) is divided into a liquid inlet valve and a liquid outlet valve according to function setting, the liquid inlet valve is opened in the process of increasing the volume of the working cavity, and the liquid outlet valve is opened in the process of reducing the volume of the working cavity. Taking fig. 2 as an example: when the piston moves leftwards, the valve 9-a is opened (fig. 2 (a), the volume of the working cavity is increased, fluid is sucked into the working cavity through the valve 9-a, when the piston moves rightwards, the valve 9-b is opened (fig. 2 (b), the volume of the working cavity is reduced, fluid is pumped out of the working cavity through the valve 9-b, fluid is sucked in through the valve 9-a and pumped out through the valve 9-b in the whole piston reciprocating process, and when the piston movement is unchanged, the valve 9-a and the valve 9-b are mutually exchanged, the fluid is sucked in through the valve 9-b and pumped out through the valve 9-a in the whole piston reciprocating process, so that bidirectional fluid transmission of the linear direct drive pump is realized.
The actuator rotor (5) is of a moving coil type or a moving magnetic type, and a Halbach permanent magnet array (10) is adopted to be attached to a magnetic yoke or the actuator rotor (5) in a surface mode to improve air gap magnetic flux density.
The active one-way valve group (9) comprises electromagnetic valves with normally closed liquid inlet valves and normally closed liquid outlet valves, and the quantity of the liquid inlet valves and the liquid outlet valves is equal to or not less than 1; the liquid outlet valve and the liquid inlet valve are mutually exchanged to realize the change of the output flow direction of the linear servo pump; and the motion phases of the liquid outlet valve and the liquid inlet valve are adjusted to improve the output efficiency of the hydraulic pump.
The movement stroke of the movable iron core (9.2) and the valve core (9.1) in the active one-way valve group (9) is the distance from the contact position of the valve core (9.1) and the hydraulic cylinder body (8) to the contact position of the movable iron core (9.2) and the shell (9.4).
The connecting plate (2), the end cover (3), the piston (7) and the hydraulic cylinder body are made of magnetic isolation materials, and the outer magnetic yoke (4), the inner magnetic yoke (6), the movable iron core (9.2), the shell (9.4) and the magnetic conduction ring (9.6) are made of magnetic conduction materials.
The axis of the active one-way valve group (9) is parallel to the axis of the hydraulic cylinder body (8).
As an embodiment, as shown in fig. 3, when the actuator rotor (5) is a moving coil, the actuator rotor (5) includes a coil skeleton (5.2) and a coil skeleton (5.1), and a Halbach permanent magnet array (10) formed by alternately and closely arranging axial magnetizing permanent magnets and radial magnetizing permanent magnets is attached to an inner yoke (6).
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (4)
1. The utility model provides a two effect electromagnetism directly drive linear servo pump, includes displacement sensor (1), connecting plate (2), end cover (3), outer yoke (4), executor active cell (5), interior yoke (6), piston (7), hydraulic cylinder body (8), initiative check valve group (9) and permanent magnetism array (10), its characterized in that includes: the outer magnetic yoke (4) and the inner magnetic yoke (6) are coaxially fixed through the end cover (3), and an air gap is arranged between the outer magnetic yoke and the inner magnetic yoke; one end of the outer magnetic yoke (4) is fixedly connected with the end cover (3) and the fixed part of the displacement sensor (1), the other end of the outer magnetic yoke (4) is fixedly connected with the hydraulic cylinder body (8) to serve as a stator, and an inner cavity formed by the hydraulic cylinder body (8) and the piston (7) is a working cavity; the actuator rotor (5) is coaxially and fixedly connected with the piston (7) through the connecting plate (2), and the actuator rotor (5) and the piston (7) can reciprocate in the air gap and the working cavity to serve as a rotor; the active check valve group (9) is arranged on the end face of the hydraulic cylinder body (8), and the active check valve group (9) is divided into a liquid inlet valve and a liquid outlet valve which respectively comprise; the valve comprises a valve core (9.1), a movable iron core (9.2), a fixed coil (9.3), a shell (9.4), a permanent magnet ring (9.5) and a magnetic conduction ring (9.6); is characterized in that: the movable iron core (9.2) is axially provided with a cylindrical flow passage, and the valve core (9.1) is fixedly connected with the movable iron core (9.2) and can reciprocate in a cylindrical inner cavity formed by the permanent magnet ring (9.5) and the magnetic conduction ring (9.6); the two axial magnetizing permanent magnet rings (9.5) with opposite magnetizing directions are tightly attached to two ends of the magnetic conducting ring (9.6), and the coil (9.3) is positioned in a circular ring type cylindrical cavity formed by the inner cavity of the shell (9.4), the permanent magnet ring (9.5) and the outer sides of the magnetic conducting ring (9.6); the motion of the movable iron core (9.2) can be controlled by controlling the current of the stator coil (9.3); the active one-way valve group (9) is divided into a liquid inlet valve and a liquid outlet valve according to functional setting, wherein the liquid inlet valve is opened in the process of increasing the volume of the working cavity, and the liquid outlet valve is opened in the process of reducing the volume of the working cavity; the actuator rotor (5) is of a moving coil type or a moving magnetic type, and a Halbach permanent magnet array (10) is adopted to be attached to a magnetic yoke or the actuator rotor (5) in a surface mode to promote air gap magnetic flux density; the axis of the active one-way valve group (9) is parallel to the axis of the hydraulic cylinder body (8).
2. The double-acting electromagnetic direct-drive linear servo pump according to claim 1, wherein the active check valve group (9) comprises normally-closed electromagnetic valves of liquid inlet valves and liquid outlet valves, and the quantity of the liquid inlet valves and the liquid outlet valves is equal to or not less than 1; the liquid outlet valve and the liquid inlet valve are mutually exchanged to realize the change of the output flow direction of the linear servo pump; and the motion phases of the liquid outlet valve and the liquid inlet valve are adjusted to improve the output efficiency of the hydraulic pump.
3. The double-acting electromagnetic direct-drive linear servo pump according to claim 1, wherein the movement stroke of the movable iron core (9.2) and the valve core (9.1) in the active one-way valve group (9) is the distance from the contact position of the valve core (9.1) and the hydraulic cylinder (8) to the contact position of the movable iron core (9.2) and the shell (9.4).
4. The double-acting electromagnetic direct-drive linear servo pump according to claim 1, wherein the connecting plate (2), the end cover (3), the piston (7) and the hydraulic cylinder body are all made of magnetic isolation materials, and the outer magnetic yoke (4), the inner magnetic yoke (6), the movable iron core (9.2), the outer shell (9.4) and the magnetic conduction ring (9.6) are made of magnetic conduction materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010338261.XA CN111322217B (en) | 2020-04-26 | 2020-04-26 | Double-acting electromagnetic direct-drive linear servo pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010338261.XA CN111322217B (en) | 2020-04-26 | 2020-04-26 | Double-acting electromagnetic direct-drive linear servo pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111322217A CN111322217A (en) | 2020-06-23 |
| CN111322217B true CN111322217B (en) | 2024-02-09 |
Family
ID=71172076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010338261.XA Active CN111322217B (en) | 2020-04-26 | 2020-04-26 | Double-acting electromagnetic direct-drive linear servo pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111322217B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627990B (en) * | 2020-12-23 | 2021-11-19 | 华中科技大学 | Flow passage adjusting structure of direct-drive combined engine and control method thereof |
| CN112947612A (en) * | 2021-02-04 | 2021-06-11 | 中汽创智科技有限公司 | Pressure control device, brake system, and pressure control method |
| CN113685330B (en) * | 2021-09-15 | 2022-11-22 | 山东理工大学 | Double-module integrated type active flow distribution electromagnetic direct-drive servo pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2400392A1 (en) * | 1974-01-05 | 1975-07-17 | Kallmeyer Richard & Co | Direct current electrically operated valve - has solenoid operating valve body biassed back to seats of permanent magnetic material |
| CN2530106Y (en) * | 2002-02-09 | 2003-01-08 | 大连恒达机械厂 | High frequency electromagnetic pneumatic valve |
| CN101858325A (en) * | 2010-05-21 | 2010-10-13 | 浙江大学 | Direct-driving compressor of movable magnet type |
| CN202696372U (en) * | 2012-08-15 | 2013-01-23 | 张正泉 | Hydraulic or air-pressure device formed by linear motor |
| CN104265973A (en) * | 2014-08-10 | 2015-01-07 | 安徽省宁国新鼎汽车零部件有限公司 | Directly-operated type electromagnetic switch valve |
| CN104728071A (en) * | 2015-04-07 | 2015-06-24 | 茵卡排放控制系统（江苏）有限公司 | Electromagnetically-driven high-pressure plunger pump |
| CN212079537U (en) * | 2020-04-26 | 2020-12-04 | 山东理工大学 | Double-acting electromagnetic direct-drive linear servo pump |
-
2020
- 2020-04-26 CN CN202010338261.XA patent/CN111322217B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2400392A1 (en) * | 1974-01-05 | 1975-07-17 | Kallmeyer Richard & Co | Direct current electrically operated valve - has solenoid operating valve body biassed back to seats of permanent magnetic material |
| CN2530106Y (en) * | 2002-02-09 | 2003-01-08 | 大连恒达机械厂 | High frequency electromagnetic pneumatic valve |
| CN101858325A (en) * | 2010-05-21 | 2010-10-13 | 浙江大学 | Direct-driving compressor of movable magnet type |
| CN202696372U (en) * | 2012-08-15 | 2013-01-23 | 张正泉 | Hydraulic or air-pressure device formed by linear motor |
| CN104265973A (en) * | 2014-08-10 | 2015-01-07 | 安徽省宁国新鼎汽车零部件有限公司 | Directly-operated type electromagnetic switch valve |
| CN104728071A (en) * | 2015-04-07 | 2015-06-24 | 茵卡排放控制系统（江苏）有限公司 | Electromagnetically-driven high-pressure plunger pump |
| CN212079537U (en) * | 2020-04-26 | 2020-12-04 | 山东理工大学 | Double-acting electromagnetic direct-drive linear servo pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111322217A (en) | 2020-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111322217B (en) | Double-acting electromagnetic direct-drive linear servo pump | |
| CN111441928A (en) | High-power-density moving-coil type electromagnetic direct-drive hydraulic pump | |
| CN111502964A (en) | High-integration moving-coil type electromagnetic direct-drive metering pump | |
| CN104179742A (en) | High-speed hydraulic reversing slide valve | |
| CN212079537U (en) | Double-acting electromagnetic direct-drive linear servo pump | |
| CN111441929A (en) | High-precision moving-coil electromagnetic direct-drive plunger pump | |
| CN111306118B (en) | Active flow distribution type electromagnetic direct-drive hydrostatic actuation system | |
| CN110805540A (en) | Pure magnetic drive gas supercharger | |
| CN212155076U (en) | High-power-density moving-coil type electromagnetic direct-drive hydraulic pump | |
| CN101858325B (en) | Direct-driving compressor of movable magnet type | |
| CN213088355U (en) | Active flow distribution type electromagnetic direct-drive hydrostatic actuating system | |
| CN211908622U (en) | Electromagnetic linear actuator based on heat dissipation of reed valve | |
| CN111313648B (en) | Electromagnetic linear actuator based on reed valve heat dissipation | |
| CN212296747U (en) | High-precision moving-coil electromagnetic direct-drive plunger pump | |
| CN201705609U (en) | Moving-magnetic type directly-driven compressor | |
| CN111502950B (en) | Efficient and high-precision bidirectional flow distribution method for linear hydraulic pump | |
| CN111425471B (en) | Hydrostatic actuation system driven by electromagnetic direct-drive plunger pump | |
| CN111425476B (en) | Hydraulic cylinder | |
| CN113969881A (en) | Motor-free direct-acting oil-free piston type air compressor | |
| CN112600379A (en) | Integrated hydraulic pump directly driven by slotless moving magnet type linear oscillation motor | |
| CN111472860A (en) | Marine intelligent integrated low-speed diesel engine electric hydrostatic exhaust valve system | |
| CN111120241A (en) | Reciprocating booster pump | |
| CN111441927A (en) | Electromagnetic direct-drive linear hydraulic pump based on asymmetric runner heat dissipation | |
| CN113566011B (en) | Four-module linkage flow distribution type electromagnetic direct drive pump | |
| CN111306032A (en) | From heat dissipation formula electromagnetism directly drives plunger pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |