CN112727726A - Cross rolling frame two-dimensional plunger motor pump - Google Patents
Cross rolling frame two-dimensional plunger motor pump Download PDFInfo
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- CN112727726A CN112727726A CN202110177401.4A CN202110177401A CN112727726A CN 112727726 A CN112727726 A CN 112727726A CN 202110177401 A CN202110177401 A CN 202110177401A CN 112727726 A CN112727726 A CN 112727726A
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- plunger
- pump
- cam track
- cylinder body
- roller
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- 238000005096 rolling process Methods 0.000 title abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 230000010354 integration Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 44
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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Classifications
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- 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
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- 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
-
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
-
- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The cross rolling frame two-dimensional plunger motor pump comprises a motor body and a plunger pump body, wherein the motor body comprises a motor shell, a stator and a rotor are arranged in the motor shell, a rotating sleeve is arranged in the rotor, the plunger pump body is arranged in the rotating sleeve, the axial lead of the plunger pump body is collinear with the axial lead of the motor body, and a pump shaft of the plunger pump body is connected with the rotor through a U-shaped sliding sleeve structure, so that the pump shaft can rotate along with the rotor and can do axial reciprocating motion; the plunger pump body comprises a pump core assembly and a transmission assembly which are sequentially arranged in the sliding sleeve from left to right, the U-shaped sliding sleeve structure comprises a sliding sleeve, a fixed shaft radially penetrates through the right end of the pump shaft, bearings are connected with two ends of the fixed shaft, the right end of the pump shaft is sleeved with the sliding sleeve, and the right end of the sliding sleeve is fixedly connected with the rotor; the sliding sleeve is provided with an axial sliding groove at the position corresponding to the bearing, the bearing is arranged in the sliding groove, and the bearing can roll in the sliding groove. The invention has the advantages of light weight, integration, cleanness, environmental protection and low noise.
Description
Technical Field
The invention relates to a motor pump, in particular to a cross rolling frame two-dimensional plunger motor pump.
Background
The hydraulic technology is widely applied to hydraulic systems of metallurgical machinery, mining machinery, engineering machinery and the like, and is developing towards high efficiency, miniaturization and integration. A hydraulic power unit of a traditional motor pump, which is composed of an independent motor and a hydraulic pump, generally needs auxiliary mechanisms and devices such as a coupler, a motion conversion mechanism, a pump frame and the like, and the energy conversion efficiency and reliability are reduced through connection and cooperation of multiple parts, so that the complexity of the power unit is increased. In recent years, hydraulic power units are receiving more and more extensive attention and development, and the integrated motor pump becomes an important direction for the innovative development of hydraulic technology.
Disclosure of Invention
In order to overcome the problems, the invention provides a cross rolling frame two-dimensional plunger motor pump.
The technical scheme adopted by the invention is as follows: the cross rolling frame two-dimensional plunger motor pump comprises a motor body and a plunger pump body, wherein the motor body comprises a motor shell, a stator and a rotor are arranged in the motor shell, a rotating sleeve is arranged in the rotor, the plunger pump body is arranged in the rotating sleeve, the axial lead of the plunger pump body is collinear with the axial lead of the motor body, and a pump shaft of the plunger pump body is connected with the rotor through a U-shaped sliding sleeve structure, so that the pump shaft can rotate along with the rotor and can do axial reciprocating motion;
the plunger pump body comprises a pump core assembly and a transmission assembly which are sequentially arranged in the rotating sleeve from left to right, the pump core assembly comprises a cylindrical shell with an open left end and a closed right end, the shell is arranged in the rotating sleeve, a cylinder body is arranged in the shell, and an oil suction hole and an oil discharge hole are formed in the left end surface of the cylinder body; the outer surface of the cylinder body is provided with a first semi-annular groove and a second semi-annular groove, the oil suction hole is communicated with the first semi-annular groove, and the oil discharge hole is communicated with the second semi-annular groove; a plunger is arranged in the cylinder body, fixedly connected to the pump shaft and capable of making linear reciprocating motion along the axial direction of the cylinder body; the left end of the plunger and the cylinder body enclose a left chamber, the right end of the plunger and the cylinder body enclose a right chamber, the volumes of the left chamber and the right chamber change along with the reciprocating motion of the plunger, when the plunger axially moves from the leftmost end to the rightmost end, the volume of the left chamber gradually increases, and the volume of the right chamber gradually decreases; conversely, when the plunger axially moves from the rightmost end to the leftmost end, the volume of the right chamber gradually increases, and the volume of the left chamber gradually decreases;
the outer surface of the plunger is uniformly provided with two left distributing grooves and two right distributing grooves with opposite opening directions at intervals, the notch positions of the left distributing grooves and the notch positions of the right distributing grooves are staggered, the positions of the cylinder body corresponding to the left distributing grooves and the right distributing grooves are provided with an oil absorption window and an oil discharge window, the oil absorption window is communicated with the first semi-annular groove, and the oil discharge window is communicated with the second semi-annular groove;
the transmission assembly comprises a cam assembly and a roller assembly, wherein the cam assembly comprises a left cam track and a right cam track; the right end of the pump shaft penetrates through the cylinder body rightwards, a left cam track and a right cam track which are provided with equal deceleration curved surface tracks are arranged in a rotating sleeve on the right side of the cylinder body, the phase difference between the left cam track and the right cam track is 90 degrees, namely the highest point and the lowest point of the left cam track correspond to the lowest point and the highest point of the right cam track respectively; the pump shaft is fixedly connected with a roller assembly at a position between the left cam track and the right cam track, the roller assembly comprises a left roller frame, a right roller frame, two left rollers and two right rollers, the left roller frame and the right roller frame respectively penetrate through the pump shaft in the radial direction, the left roller frame and the right roller frame are staggered by a certain distance in the axial direction, and the left roller frame and the right roller frame are mutually vertical; two ends of the left roller carrier penetrate out of the pump shaft and are rotatably connected with a left roller, two ends of the right roller carrier penetrate out of the pump shaft and are rotatably connected with a right roller, and the left roller and the right roller are respectively matched with the left cam track and the right cam track to rotate;
the U-shaped sliding sleeve structure comprises a sliding sleeve, a fixed shaft radially penetrates through the right end of the pump shaft, two ends of the fixed shaft are connected with bearings, and the sliding sleeve is fixedly connected with the rotor; an axial sliding groove is formed in the position, corresponding to the bearing, on the sliding sleeve, and the left end of the sliding groove penetrates through the sliding sleeve; a bearing is arranged in the sliding chute and can roll in the sliding chute; the plunger rotates along with the pump shaft and simultaneously makes linear reciprocating motion under the constraint of the cam assembly; the left distributing groove and the right distributing groove on the plunger are respectively communicated with the oil absorption window and the oil discharge window on the cylinder body, the cavity with gradually increased volume absorbs oil, and the cavity with gradually decreased volume discharges oil.
Furthermore, the stator comprises a stator core, a winding is arranged on the stator core, and permanent magnets are distributed on the rotor.
The invention has the beneficial effects that: a coupler of a connecting part in the middle of a traditional hydraulic power unit is omitted, and the reliability of the integrated motor pump is better. Has the advantages of light weight, integration, cleanness, environmental protection and the like. Meanwhile, the conversion efficiency is improved, the limitation of multi-section connection of the traditional hydraulic power unit is broken through, and the structure is simplified.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention.
Fig. 2 is a schematic structural view of the plunger pump body.
Fig. 3 is a schematic view of the structure of the plunger and pump shaft.
Fig. 4 is a sectional view taken along line B-B in fig. 3.
Fig. 5 is a schematic structural view of the cylinder body.
Description of reference numerals: 1. a motor housing; 2-1, a stator; 2-2 winding; 3. a rotor 4, a pump shaft 5 and a rotating sleeve; 6. a cylinder body; 61. an oil suction hole; 62. an oil drain hole; 63. a first semi-annular groove; 64. a second semi-annular groove; 7. a plunger; 81. a left cam track; 82. a right cam track; 83. a left roller; 84. a right roller; 9. a sliding sleeve; 91. a chute; 92. a fixed shaft; 93. and a bearing.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to the attached drawings, the cross rolling frame two-dimensional plunger motor pump comprises a motor body and a plunger pump body, wherein the motor body comprises a motor shell 1, a stator 2-1 and a rotor 3 are arranged in the motor shell 1, the stator 2-1 comprises a stator core, a winding 2-2 is arranged on the stator core, and permanent magnets are distributed on the rotor 3. A rotating sleeve 5 is arranged in the rotor 3, a plunger pump body is arranged in the rotating sleeve 5, the axial lead of the plunger pump body is collinear with the axial lead of the motor body, and a pump shaft 4 of the plunger pump body is connected with the rotor through a U-shaped sliding sleeve structure, so that the pump shaft 4 can rotate along with the rotor 3 and can do axial reciprocating motion;
the plunger pump body comprises a pump core assembly and a transmission assembly which are sequentially arranged in the rotating sleeve 5 from left to right, the pump core assembly comprises a cylindrical shell with an open left end and a closed right end, the shell is arranged in the rotating sleeve 5, a cylinder body 6 is arranged in the shell, and an oil suction hole 61 and an oil discharge hole 62 are formed in the left end surface of the cylinder body 6; the outer surface of the cylinder body 6 is provided with a first semi-annular groove 63 and a second semi-annular groove 64, the oil suction hole 61 is communicated with the first semi-annular groove 63, and the oil discharge hole 62 is communicated with the second semi-annular groove 64; a plunger 7 is arranged in the cylinder body 6, the plunger 7 is fixedly connected to the pump shaft 4, and the plunger 7 can do linear reciprocating motion along the axial direction of the cylinder body 6; the left end of the plunger 7 and the inside of the cylinder body 6 are enclosed to form a left chamber, the right end of the plunger 7 and the cylinder body 6 are enclosed to form a right chamber, the volumes of the left chamber and the right chamber are changed along with the reciprocating motion of the plunger 7, when the plunger 7 axially moves from the leftmost end to the rightmost end, the volume of the left chamber is gradually increased, and the volume of the right chamber is gradually decreased; conversely, when the plunger axially moves from the rightmost end to the leftmost end, the volume of the right chamber gradually increases, and the volume of the left chamber gradually decreases;
the outer surface of the plunger 7 is uniformly provided with two left distributing grooves b and d and two right distributing grooves a and c with opposite opening directions at intervals, the notch positions of the left distributing grooves b and d and the notch positions of the right distributing grooves a and c are staggered, the cylinder body 6 is provided with an oil absorption window and an oil discharge window at the positions corresponding to the left distributing grooves b and d and the right distributing grooves a and c, the oil absorption window is communicated with the first half annular groove 63, and the oil discharge window is communicated with the second half annular groove 64;
the transmission assembly comprises a cam assembly and a roller assembly, wherein the cam assembly comprises a left cam track 81 and a right cam track 82; the right end of the pump shaft 4 penetrates through the cylinder body 6 rightwards, a left cam track 81 and a right cam track 82 which are provided with equal deceleration curved surface tracks are arranged in a rotating sleeve positioned on the right side of the cylinder body 6, and the phase difference between the left cam track 81 and the right cam track 82 is 90 degrees, namely the highest point and the lowest point of the left cam track 81 correspond to the lowest point and the highest point of the right cam track 82 respectively; a roller assembly is fixedly connected to the pump shaft 4 at a position between the left cam track 81 and the right cam track 82, the roller assembly comprises a left roller frame, a right roller frame, two left rollers 83 and two right rollers 84, the left roller frame and the right roller frame respectively penetrate through the pump shaft 4 in the radial direction, the left roller frame and the right roller frame are staggered in the axial direction by a certain distance, and the left roller frame and the right roller frame are perpendicular to each other; two ends of the left roller carrier penetrate out of the pump shaft 4 and are rotatably connected with a left roller 83, two ends of the right roller carrier penetrate out of the pump shaft and are rotatably connected with a right roller 84, and the left roller 83 and the right roller 84 are respectively matched with the left cam track 81 and the right cam track 82 to rotate;
the U-shaped sliding sleeve structure comprises a sliding sleeve 9, a fixed shaft 92 penetrates through the right end of the pump shaft 4 in the radial direction, two ends of the fixed shaft 92 are connected with bearings 93, and the sliding sleeve 9 is fixedly connected with the rotor; an axial sliding groove 91 is formed in the position, corresponding to the bearing 93, of the sliding sleeve 9, and the left end of the sliding groove 91 penetrates through the sliding sleeve 9; a bearing 93 is arranged in the sliding groove 91, and the bearing 93 can roll in the sliding groove 91; the plunger 7 does linear reciprocating motion under the constraint of the cam component while rotating along with the pump shaft 4; the left distributing grooves b and d and the right distributing grooves a and c on the plunger 7 are respectively communicated with the oil absorption window and the oil discharge window on the cylinder body 6, the cavity with gradually increased volume absorbs oil, and the cavity with gradually decreased volume discharges oil.
The motor and the two-dimensional plunger pump are integrated into a whole, the pump shaft is inserted into the motor rotor, and the rotor and the pump shaft are connected together through a U-shaped sliding sleeve structure. The left and right rollers are respectively matched with the left and right cam tracks to rotate, so that the plunger realizes linear motion; after a motor pump is electrified, under the action of an electromagnetic field, a rotor operates and transmits torque to a plunger to promote circumferential rotation, a left flow distribution groove and a right flow distribution groove are circumferentially distributed on the outer surface of the plunger, when hydraulic oil enters from an oil inlet and enters a cylinder body through a first semi-annular groove, four left flow distribution grooves and right flow distribution grooves which are formed in the surface of the plunger, and oil is mutually distributed with the oil inlet and an oil outlet, oil absorption and oil discharge are carried out through two degrees of freedom of the plunger, the plunger starts to move rightwards under the constraint of a cam, the oil flows into the cylinder body from the oil inlet and passes through two oil inlet windows, enters a left flow distribution groove b and a left flow distribution groove d, the volume of a left cavity is increased, oil absorption is carried out, when the plunger rotates for a certain angle, the oil of the left cavity flows out from the oil outlet through the oil outlet and a second semi, the left cavity is extruded to reduce the volume, under the continuous rotation of the motor, the window communicated with the oil discharge hole of the pump continuously discharges oil, and the window communicated with the oil inlet continuously absorbs oil, so that the plunger can do linear reciprocating motion of rotary circumferential rotation while doing left-right axial motion. The oil sucking and discharging function is realized by utilizing the two-way freedom degree of the plunger in the horizontal and rotary motion.
The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but rather by the equivalents thereof as may occur to those skilled in the art upon consideration of the present inventive concept.
Claims (2)
1. Cross roll frame two dimension plunger motor pump, its characterized in that: the motor comprises a motor body and a plunger pump body, wherein the motor body comprises a motor shell, a stator and a rotor are arranged in the motor shell, a rotating sleeve is arranged in the rotor, a plunger pump body is arranged in the rotating sleeve, the axial lead of the plunger pump body is collinear with the axial lead of the motor body, and a pump shaft of the plunger pump body is connected with the rotor through a U-shaped sliding sleeve structure, so that the pump shaft can rotate along with the rotor and can do axial reciprocating motion;
the plunger pump body comprises a pump core assembly and a transmission assembly which are sequentially arranged in the rotating sleeve from left to right, the pump core assembly comprises a cylindrical shell with an open left end and a closed right end, the shell is arranged in the rotating sleeve, a cylinder body is arranged in the shell, and an oil suction hole and an oil discharge hole are formed in the left end surface of the cylinder body; the outer surface of the cylinder body is provided with a first semi-annular groove and a second semi-annular groove, the oil suction hole is communicated with the first semi-annular groove, and the oil discharge hole is communicated with the second semi-annular groove; a plunger is arranged in the cylinder body, fixedly connected to the pump shaft and capable of making linear reciprocating motion along the axial direction of the cylinder body; the left end of the plunger and the cylinder body enclose a left chamber, the right end of the plunger and the cylinder body enclose a right chamber, the volumes of the left chamber and the right chamber change along with the reciprocating motion of the plunger, when the plunger axially moves from the leftmost end to the rightmost end, the volume of the left chamber gradually increases, and the volume of the right chamber gradually decreases; conversely, when the plunger axially moves from the rightmost end to the leftmost end, the volume of the right chamber gradually increases, and the volume of the left chamber gradually decreases;
the outer surface of the plunger is uniformly provided with two left distributing grooves and two right distributing grooves with opposite opening directions at intervals, the notch positions of the left distributing grooves and the notch positions of the right distributing grooves are staggered, the positions of the cylinder body corresponding to the left distributing grooves and the right distributing grooves are provided with an oil absorption window and an oil discharge window, the oil absorption window is communicated with the first semi-annular groove, and the oil discharge window is communicated with the second semi-annular groove;
the transmission assembly comprises a cam assembly and a roller assembly, wherein the cam assembly comprises a left cam track and a right cam track; the right end of the pump shaft penetrates through the cylinder body rightwards, a left cam track and a right cam track which are provided with equal deceleration curved surface tracks are arranged in a rotating sleeve on the right side of the cylinder body, the phase difference between the left cam track and the right cam track is 90 degrees, namely the highest point and the lowest point of the left cam track correspond to the lowest point and the highest point of the right cam track respectively; the pump shaft is fixedly connected with a roller assembly at a position between the left cam track and the right cam track, the roller assembly comprises a left roller frame, a right roller frame, two left rollers and two right rollers, the left roller frame and the right roller frame respectively penetrate through the pump shaft in the radial direction, the left roller frame and the right roller frame are staggered by a certain distance in the axial direction, and the left roller frame and the right roller frame are mutually vertical; two ends of the left roller carrier penetrate out of the pump shaft and are rotatably connected with a left roller, two ends of the right roller carrier penetrate out of the pump shaft and are rotatably connected with a right roller, and the left roller and the right roller are respectively matched with the left cam track and the right cam track to rotate;
the U-shaped sliding sleeve structure comprises a sliding sleeve, a fixed shaft radially penetrates through the right end of the pump shaft, two ends of the fixed shaft are connected with bearings, and the sliding sleeve is fixedly connected with the rotor; an axial sliding groove is formed in the position, corresponding to the bearing, on the sliding sleeve, and the left end of the sliding groove penetrates through the sliding sleeve; a bearing is arranged in the sliding chute and can roll in the sliding chute; the plunger rotates along with the pump shaft and simultaneously makes linear reciprocating motion under the constraint of the cam assembly; the left distributing groove and the right distributing groove on the plunger are respectively communicated with the oil absorption window and the oil discharge window on the cylinder body, the cavity with gradually increased volume absorbs oil, and the cavity with gradually decreased volume discharges oil.
2. The cross-roller two-dimensional plunger motor pump of claim 1, wherein: the stator comprises a stator core, a winding is arranged on the stator core, and permanent magnets are distributed on the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110177401.4A CN112727726A (en) | 2021-02-07 | 2021-02-07 | Cross rolling frame two-dimensional plunger motor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110177401.4A CN112727726A (en) | 2021-02-07 | 2021-02-07 | Cross rolling frame two-dimensional plunger motor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112727726A true CN112727726A (en) | 2021-04-30 |
Family
ID=75596684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110177401.4A Withdrawn CN112727726A (en) | 2021-02-07 | 2021-02-07 | Cross rolling frame two-dimensional plunger motor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112727726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483508A (en) * | 2022-01-28 | 2022-05-13 | 浙江工业大学 | Miniature manual two-dimensional plunger pump |
-
2021
- 2021-02-07 CN CN202110177401.4A patent/CN112727726A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483508A (en) * | 2022-01-28 | 2022-05-13 | 浙江工业大学 | Miniature manual two-dimensional plunger pump |
| CN114483508B (en) * | 2022-01-28 | 2024-05-03 | 浙江工业大学 | Miniature manual two-dimensional plunger pump |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210430 |
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| WW01 | Invention patent application withdrawn after publication |