CN114576121A - Plunger pump - Google Patents
Plunger pump Download PDFInfo
- Publication number
- CN114576121A CN114576121A CN202210181220.3A CN202210181220A CN114576121A CN 114576121 A CN114576121 A CN 114576121A CN 202210181220 A CN202210181220 A CN 202210181220A CN 114576121 A CN114576121 A CN 114576121A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- push rod
- cylinder
- plunger pump
- plug
- 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.)
- Pending
Links
- 238000002347 injection Methods 0.000 claims abstract description 36
- 239000007924 injection Substances 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims 2
- 239000012530 fluid Substances 0.000 abstract description 23
- 238000007599 discharging Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Images
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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/02—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having two 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/128—Driving means
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/16—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having two or more sets of cylinders or pistons
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/18—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having self-acting distribution members, i.e. actuated by working fluid
- F04B1/182—Check valves
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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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/26—Control
- F04B1/28—Control of machines or pumps with stationary 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
- 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
Abstract
A plunger pump injection tube comprises a first cylinder body, a second cylinder body, a first push rod, a second push rod, a main shaft, a feed inlet and a discharge outlet, wherein the first push rod is movably arranged in the first cylinder body, the second push rod is movably arranged in the second cylinder body, the main shaft is provided with a spiral groove, the first push rod is provided with a first plug, the second push rod is provided with a second plug, the first plug and the second plug are inserted into the spiral groove, the first cylinder body is communicated with the discharge outlet, the second cylinder body is communicated with the discharge outlet, the two cylinder bodies are driven by a motor to realize seamless output, two one check valves work alternately, when one cylinder body is pushed out by the pressure of the other cylinder body, the operating speed of the cylinder body is controlled by adopting a servo motor, the speed of the motor is adjusted according to the size of fluid, the size of high-precision fluid is realized, and high pressure is realized, small flow, stable and continuous output.
Description
Technical Field
The invention relates to the technical field of hydraulic pumps, in particular to a plunger pump.
Background
The plunger pump is mainly applied to engineering machinery, is suitable for reciprocating motion of fluid with large flow and is an important component of hydraulic machinery. The existing hydraulic pump is mostly a double-working-chamber plunger pump, the liquid discharge amount is small, the hydraulic pump is applied to high-power hydraulic machinery and is very strenuous, but if the working chambers are only increased in quantity, the internal pump cores have the load problem, and due to the structural problem of the plunger pump, the tightness of the hydraulic pump is not easy to guarantee, and the existing plunger pump is single-stage compression, so that the compression efficiency is low, and the energy consumption is high.
Disclosure of Invention
In order to solve the above problems, the present invention provides a plunger pump.
The invention is realized by the following technical scheme:
the invention provides a plunger pump, wherein an injection tube comprises a first cylinder body, a second cylinder body, a first push rod, a second push rod, a main shaft, a feeding hole and a discharging hole, the first push rod is movably arranged in the first cylinder body, the second push rod is movably arranged in the second cylinder body, the main shaft is provided with a spiral groove, the first push rod is provided with a first plug, the second push rod is provided with a second plug, the first plug and the second plug are inserted into the spiral groove, the first cylinder body is communicated with the discharging hole, and the second cylinder body is communicated with the discharging hole.
Furthermore, the injection pipe is provided with a first one-way valve and a second one-way valve, the first cylinder body is provided with a first injection port and a second injection port, the first one-way valve is installed in the first injection port, and the second one-way valve is installed in the second injection port.
Furthermore, the injection pipe is provided with a third one-way valve and a fourth one-way valve, the second cylinder body is provided with a third injection port and a fourth injection port, the third one-way valve is installed in the third injection port, and the fourth one-way valve is installed in the fourth injection port.
Further, the injection pipe is provided with a first through hole, and the first through hole is used for communicating the first cylinder body with the second cylinder body.
Further, the injection pipe is provided with a second through hole, and the first cylinder body is communicated with the second cylinder body through the second through hole.
Further, the plunger pump comprises a driving motor, and the driving motor is fixedly connected with the syringe.
Further, the plunger pump comprises a terminal, and the terminal is fixedly connected with the driving motor.
The invention has the beneficial effects that:
the plunger pump provided by the invention has a stable and firm structure, two cylinder bodies are driven by a motor to realize seamless output, the output outlet adopts a pressure one-way valve principle, when the pressure of the cylinder bodies is more than or equal to the pressure required by the one-way valve, the cylinder bodies can be pushed to realize seamless connection, the pressure is ensured to be stable, the output is ensured to be stable, the two one-way valves work alternately, when one of the two one-way valves is pushed out by the pressure of the cylinder bodies, the other one of the two one-way valves is more sealed, the operation speed of the cylinder bodies is controlled by adopting a servo motor, the speed of the motor is adjusted according to the size of fluid, the size of high-precision fluid is realized, and the characteristics of high pressure, small flow and stability are realized, and the continuous and uninterrupted output is realized.
Drawings
FIG. 1 is a perspective view of a plunger pump of the present invention;
FIG. 2 is a cross-sectional view of the plunger pump of the present invention;
fig. 3 is a schematic view of a part of the structure of the turntable device of the present invention.
Detailed Description
In order to more clearly and completely describe the technical scheme of the invention, the invention is further described with reference to the accompanying drawings.
Referring to fig. 1 to 3, the present invention provides a plunger pump, wherein the injection tube 1 includes a first cylinder 4, a second cylinder 5, a first push rod 16, a second push rod 17, a main shaft 20, a feed inlet 22 and a discharge outlet 23, the first push rod 16 is movably installed in the first cylinder 4, the second push rod 17 is movably installed in the second cylinder 5, the main shaft 20 is provided with a spiral groove 21, the first push rod 16 is provided with a first plug 18, the second push rod 17 is provided with a second plug 19, the first plug 18 and the second plug 19 are inserted into the spiral groove 21, the first cylinder 4 is communicated with the discharge outlet 23, and the second cylinder 5 is communicated with the discharge outlet 23.
In this embodiment, the main shaft 20 rotates to drive the first plug 18 and the second plug 19 to move along with the track of the spiral groove 21, so as to drive the first push rod 16 and the second support rod to move in the first cylinder 4 and the second cylinder 5 respectively, the first push rod 16 and the second push rod 17 push the fluid in the first cylinder 4 and the second cylinder 5 respectively, so that the fluid enters from the inlet 22 and is pushed out from the outlet 23, the rotation speed of the main shaft 20 is controlled to control the metering size of the fluid discharge, the speed of the motor is adjusted according to the demand of the fluid, the size of the high-precision fluid is realized, and therefore, the characteristics of high pressure, small flow and stability are realized, and continuous and uninterrupted output is realized.
Further, the injection pipe 1 is provided with a first check valve 12 and a second check valve 13, the first cylinder 4 is provided with a first injection port 6 and a second injection port 7, the first check valve 12 is installed in the first injection port 6, and the second check valve 13 is installed in the second injection port 7; the injection pipe 1 is provided with a third one-way valve 14 and a fourth one-way valve 15, the second cylinder 5 is provided with a third injection port 8 and a fourth injection port 9, the third one-way valve 14 is installed in the third injection port 8, and the fourth one-way valve 15 is installed in the fourth injection port 9; the injection pipe 1 is provided with a first through hole 10, and the first through hole 10 is used for communicating the first cylinder 4 with the second cylinder 5; the injection tube 1 is provided with a second through hole 11, and the first cylinder 4 and the second cylinder 5 are communicated through the second through hole 11.
In this embodiment, the fluid charging/discharging port 22 enters the second cylinder 5, the second push rod 17 pushes the fluid in the second cylinder 5 to open the third check valve 14, a part of the fluid charges the third check valve 14 to flow to the fourth check valve 15, and a part of the fluid flows into the first cylinder 4 from the first through hole 10, the first push rod 16 pushes the fluid flowing into the first cylinder 4 to open the first check valve 12, the fluid flows into the second check valve 13 from the first check valve 12, the fluid flows out from the discharging port 23 by opening the second check valve 13 due to the internal air pressure, the fluid flowing into the fourth check valve 15 joins the fluid flowing into the second check valve 13 through the second through hole 11 and flows out from the discharging port 23, when the pressure of the cylinder is equal to or higher than the pressure required by the check valves, the fluid can be pushed to realize seamless connection, thereby ensuring stable pressure and stable output, the two check valves work alternately, when one cylinder body is pushed out by the pressure of the other cylinder body, the other cylinder body can be sealed more, the operating speed of the cylinder body is controlled by adopting the servo motor, the speed of the motor is adjusted according to the size of the fluid, and the size of the high-precision fluid is realized, so that the characteristics of high pressure, small flow and stability are realized, and continuous and uninterrupted output is realized.
Further, the plunger pump comprises a driving motor 2, and the driving motor 2 is fixedly connected with the syringe.
In this embodiment, the driving motor 2 is used to drive the spindle 20, and the high-precision fluid size can be realized by adjusting the speed of the driving motor 2, so that the characteristics of high pressure, small flow, stability and continuous and uninterrupted output can be realized.
Further, the plunger pump comprises a terminal 3, and the terminal 3 is fixedly connected with the driving motor 2.
In the present embodiment, the terminal 3 is used for connecting an external device.
Of course, the present invention may have other embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative effort, and all of them are within the protection scope of the present invention.
Claims (7)
1. The utility model provides a plunger pump, its characterized in that, the plunger pump includes the syringe, the syringe includes first cylinder body, second cylinder body, first push rod, second push rod, main shaft, feed inlet and discharge gate, the movable installation of first push rod is in the first cylinder body, the movable installation of second push rod is in the second cylinder body, the main shaft is equipped with the helicla flute, first push rod is equipped with first plug, the second push rod is equipped with the second plug, first plug with the second plug inserts in the helicla flute, first cylinder body with the discharge gate is linked together, the second cylinder body with the discharge gate is linked together.
2. The plunger pump of claim 1, wherein the syringe is provided with a first check valve and a second check valve, the first cylinder is provided with a first injection port and a second injection port, the first check valve is installed in the first injection port, and the second check valve is installed in the second injection port.
3. The plunger pump of claim 1, wherein the injection tube is provided with a third check valve and a fourth check valve, the second cylinder is provided with a third injection port and a fourth injection port, the third check valve is installed in the third injection port, and the fourth check valve is installed in the fourth injection port.
4. The plunger pump of claim 1, wherein the syringe is provided with a first through hole that communicates the first cylinder with the second cylinder.
5. The plunger pump of claim 1, wherein the syringe is provided with a second through hole that communicates the first cylinder with the second cylinder.
6. The plunger pump of claim 1, wherein the plunger pump comprises a drive motor fixedly connected to the syringe.
7. The plunger pump of claim 6, wherein the plunger pump includes terminals that are fixedly connected to the drive motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210181220.3A CN114576121A (en) | 2022-02-26 | 2022-02-26 | Plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210181220.3A CN114576121A (en) | 2022-02-26 | 2022-02-26 | Plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114576121A true CN114576121A (en) | 2022-06-03 |
Family
ID=81773879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210181220.3A Pending CN114576121A (en) | 2022-02-26 | 2022-02-26 | Plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114576121A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956663A (en) * | 2017-12-04 | 2018-04-24 | 厦门博士达涂装科技有限公司 | It is a kind of that there is the two-cylinder type plunger pump for stablizing output |
| CN211244961U (en) * | 2019-10-21 | 2020-08-14 | 郑州大学第五附属医院 | Micro pump for artery continuous injection |
| CN111980878A (en) * | 2020-09-24 | 2020-11-24 | 武汉泓创博远流体科技有限公司 | Active oil lubrication type axial plunger fluid pump |
| CN112879256A (en) * | 2021-03-10 | 2021-06-01 | 焦秀智 | Experimental device capable of simulating reservoir pressure |
| US20210285438A1 (en) * | 2019-10-25 | 2021-09-16 | Tonand Inc. | Cylinder on demand hydraulic device |
-
2022
- 2022-02-26 CN CN202210181220.3A patent/CN114576121A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956663A (en) * | 2017-12-04 | 2018-04-24 | 厦门博士达涂装科技有限公司 | It is a kind of that there is the two-cylinder type plunger pump for stablizing output |
| CN211244961U (en) * | 2019-10-21 | 2020-08-14 | 郑州大学第五附属医院 | Micro pump for artery continuous injection |
| US20210285438A1 (en) * | 2019-10-25 | 2021-09-16 | Tonand Inc. | Cylinder on demand hydraulic device |
| CN111980878A (en) * | 2020-09-24 | 2020-11-24 | 武汉泓创博远流体科技有限公司 | Active oil lubrication type axial plunger fluid pump |
| CN112879256A (en) * | 2021-03-10 | 2021-06-01 | 焦秀智 | Experimental device capable of simulating reservoir pressure |
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| 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 |