CN111577568B - Synchronous belt constant delivery pump and method - Google Patents
Synchronous belt constant delivery pump and method Download PDFInfo
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- CN111577568B CN111577568B CN202010488665.7A CN202010488665A CN111577568B CN 111577568 B CN111577568 B CN 111577568B CN 202010488665 A CN202010488665 A CN 202010488665A CN 111577568 B CN111577568 B CN 111577568B
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- synchronous belt
- driven
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- driving
- groove
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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
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G1/00—Driving-belts
- F16G1/04—Driving-belts made of fibrous material, e.g. textiles, whether rubber-covered or not
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G1/00—Driving-belts
- F16G1/14—Driving-belts made of plastics
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a synchronous belt constant delivery pump and a method, comprising a motor and a shell; the shell is internally provided with a left cavity, a right cavity, a first flow groove, a second flow groove and a plugging groove; a driving wheel and a left tensioning wheel are arranged in the left cavity, and a driven wheel and a right tensioning wheel are arranged in the right cavity; an output shaft of the motor is connected with a shaft of the driving wheel, the driving wheel is connected with the driven wheel through a driving synchronous belt, and the driving synchronous belt penetrates through the first flow groove and the plugging groove and is connected with the first flow groove and the plugging groove in a sealing mode; the left tensioning wheel and the right tensioning wheel are connected through a driven synchronous belt, the driven synchronous belt penetrates through the second flow groove and the plugging groove and is in sealing connection with the second flow groove, the driven synchronous belt is meshed with the driving synchronous belt, and the meshed part of the driven synchronous belt is in sealing connection with the plugging groove; the right chamber is communicated with an inlet, and the left chamber is communicated with an outlet. The product has the characteristics of stable flow, long service life, no leakage, high precision, acid and alkali resistance and self lubrication.
Description
Technical Field
The invention relates to a constant delivery pump and a method, in particular to a synchronous belt constant delivery pump and a method.
Background
The quantitative pump is a special volumetric pump for conveying liquid, especially corrosive liquid, and features that its output flow is not changed. At present, most of the quantitative pumps on the market are injection pumps, peristaltic pumps and gear pumps.
The injection pump has the problems of intermittent flow, rapid abrasion of an injection unit, high cost, complex injection and sample injection pipelines and difficult pipeline cleaning, and bubbles introduced into the injection and sample injection system are generally difficult to completely remove if the bubbles are sucked and remain in a pipe, so that sample injection is inaccurate, and particularly the bubbles are easy to be stored at the positions of a multi-position valve and a sample storage ring; the gear pump also has the problem of micro leakage, so that an error is generated in the metering pump; the peristaltic pump also has the problems of short service life, serious flow pulsation and unstable system pressure. The constant delivery pump on the market generally has the short-lived, and the flow is unstable, and the eccentric mounting's of constant delivery pump bearing is bad easily, and the noisy big scheduling problem of pump moreover. Therefore, a quantitative pump having excellent performance is desired.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a synchronous belt quantitative pump and a synchronous belt quantitative pump method.
In order to solve the technical problems, the invention adopts the technical scheme that: a synchronous belt constant delivery pump comprises a motor and a shell; the shell is internally provided with a left cavity chamber, a right cavity chamber, a first flow groove, a second flow groove and a plugging groove, wherein the first flow groove, the second flow groove and the plugging groove are communicated with the left cavity chamber and the right cavity chamber;
a driving wheel and a left tensioning wheel are arranged in the left chamber, and a driven wheel and a right tensioning wheel are arranged in the right chamber;
an output shaft of the motor is connected with a shaft of the driving wheel, the driving wheel is connected with the driven wheel through a driving synchronous belt, and the driving synchronous belt penetrates through the first flow groove and the plugging groove and is connected with the first flow groove and the plugging groove in a sealing mode; the left tensioning wheel and the right tensioning wheel are connected through a driven synchronous belt, the driven synchronous belt penetrates through the second flow groove and the plugging groove, the driven synchronous belt is connected with the second flow groove in a sealing mode, the driven synchronous belt is meshed with the driving synchronous belt, and the meshed part of the driven synchronous belt is connected with the plugging groove in a sealing mode;
the right chamber is communicated with an inlet, and the left chamber is communicated with an outlet.
Furthermore, the shell is made of polytetrafluoroethylene plastics and carbon fiber materials in a die-casting mode, the driving synchronous belt and the driven synchronous belt are made of polyurethane materials, and the driving wheel, the left tension wheel, the driven wheel and the right tension wheel are made of polyamide fibers.
Further, the gears of the driving synchronous belt are respectively meshed with the gears of the driving wheel and the driven wheel.
Furthermore, shafts of the driving wheel, the left tension wheel, the driven wheel and the right tension wheel are all made of zirconium dioxide ceramics.
Further, the motor is a stepping motor.
Further, the working method of the synchronous belt quantitative pump comprises the following steps:
firstly, injecting liquid into the right chamber from an inlet to fill the whole right chamber;
then, starting a motor, converting electric energy into rotary mechanical energy, namely rotary force, driving a driving wheel to rotate by the rotary force, driving a driving synchronous belt connected with the driving wheel to run anticlockwise, driving a driven synchronous belt meshed with the driving synchronous belt to run anticlockwise, and therefore when the driving synchronous belt runs in the right chamber and passes through a first flow groove, gear gaps of liquid on the driving synchronous belt are driven, and the liquid continuously enters the left chamber through the first flow groove; when the driven synchronous belt runs in the right chamber and passes through the second flow groove, the gear clearance of the liquid on the driven synchronous belt is driven, so that the liquid continuously enters the left chamber through the second flow groove;
meanwhile, the driving synchronous belt and the driven synchronous belt in the left chamber are meshed together to enter the plugging groove, and no gap exists in the plugging groove, so that liquid is plugged in the left chamber;
finally, the liquid is collected in the left chamber and discharged from the outlet, and the operation is circulated.
The invention discloses a synchronous belt dosing pump.A shell is formed by high-wear-resistance self-lubricating polytetrafluoroethylene plastic and carbon fiber in a die-casting manner, and a driving synchronous belt and a driven synchronous belt are both made of elastic polyurethane materials and can be effectively sealed with the shell in a first flow groove, a second flow groove and a plugging groove, so that once a calibration coefficient is stable for a long time, the flow is stable, the service life is long, no leakage exists, the precision is high, and the requirement on the processing precision is not high; the synchronous belt quantitative pump has no metal parts inside, has the characteristics of acid and alkali resistance and self lubrication, and can be widely applied to occasions needing accurate quantitative supply of various fluids, such as petrochemical industry, fine chemical industry, medicines and foods.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a left side view of fig. 1.
In the figure: 1. a housing; 2. a left chamber; 3. a right chamber; 4. a first flow channel; 5. a second flow channel; 6. plugging the groove; 7. a drive wheel; 8. a left tensioning wheel; 9. a driven wheel; 10. a right tension pulley; 11. a driving synchronous belt; 12. a driven synchronous belt; 13. an inlet; 14. an outlet; 15. an electric motor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The synchronous belt constant delivery pump as shown in fig. 1 and fig. 2 comprises a motor 15, preferably, the motor 15 adopts a commercially available stepping motor as a power supply device, and a shell 1, preferably, the shell 1 is made of polytetrafluoroethylene plastic and carbon fiber material by die casting, wherein the polytetrafluoroethylene plastic has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, and is almost insoluble in all solvents, meanwhile, the polytetrafluoroethylene plastic has the characteristic of high temperature resistance, has an extremely low friction coefficient, has self-lubricating property, and the carbon fiber material is a special fiber composed of carbon elements, has the characteristic of friction resistance, and ensures that the shell 1 has long service life and wear resistance; a left chamber 2 and a right chamber 3 are arranged in the shell 1, the left chamber 2 and the right chamber 3 are provided with a first flow groove 4, a second flow groove 5 and a blocking groove 6, the right chamber 3 is communicated with an inlet 13, and the left chamber 2 is communicated with an outlet 14;
a driving wheel 7 and a left tensioning wheel 8 are arranged in the left chamber 2, and a driven wheel 9 and a right tensioning wheel 10 are arranged in the right chamber 3; the driving wheel 7, the left tension wheel 8, the driven wheel 9 and the right tension wheel 10 are all made of polyamide fibers, the polyamide fibers are made of synthetic fibers, the most outstanding advantage is that the abrasion resistance is higher than that of all other fibers, shafts of the driving wheel 7, the left tension wheel 8, the driven wheel 9 and the right tension wheel 10 are all made of zirconium dioxide ceramics, and the zirconium dioxide ceramics are high in hardness, high in toughness, high in bending strength and high in abrasion resistance and also have excellent heat insulation performance; the driving wheel 7 is connected with the driven wheel 9 through a driving synchronous belt 11, and the driving synchronous belt 11 penetrates through the first flow groove 4 and the plugging groove 6 and is connected with the first flow groove 4 and the plugging groove 6 in a sealing mode; the left tensioning wheel 8 and the right tensioning wheel 10 are connected through a driven synchronous belt 12, the driven synchronous belt 12 penetrates through the second flow slot 5 and the plugging slot 6, the driven synchronous belt 12 is connected with the second flow slot 5 in a sealing mode, the driven synchronous belt 12 is meshed with the driving synchronous belt 11, and the meshed part of the driven synchronous belt 12 is connected with the plugging slot 6 in a sealing mode; the gears of the driving synchronous belt 11 are respectively meshed with the gears of the driving wheel 7 and the driven wheel 9; initiative hold-in range 11 and driven hold-in range 12 all adopt the polyurethane material to make, the polyurethane material is a macromolecular material, the wearability of initiative hold-in range 11 and the driven hold-in range 12 that utilizes the polyurethane material to make is strong, anti-shear force is big, simultaneously the shock attenuation, the elastic force of buffering, thereby guarantee initiative hold-in range 11 and first flow groove 4 and shutoff groove 6, the leakproofness between driven hold-in range 12 and the second flow groove 5, the elastic force has also guaranteed initiative hold-in range 11 and driven hold-in range 12's motion also not receive the hindrance because of the leakproofness causes simultaneously.
An output shaft of the motor 15 is connected with a shaft of the driving wheel 7, and when the synchronous belt quantitative pump works, liquid is firstly injected into the right cavity 3 from the inlet 13 to fill the whole right cavity 3; when the synchronous belt quantitative pump works, the right chamber 3 is communicated with an inlet 13, liquid is injected into the right chamber 3 from the inlet 13, and the whole right chamber 3 is filled with the liquid; then starting the motor 15, the motor 15 converts the electric energy into the mechanical energy of rotation, i.e. the rotational force, the rotational force drives the driving wheel 7 to rotate, the driving synchronous belt 11 connected with the driving wheel 7 is driven by the driving wheel 7 to run anticlockwise, the driving synchronous belt 11 drives the driven synchronous belt 12 meshed with the driving synchronous belt to run anticlockwise, therefore, when the driving synchronous belt 11 runs at the part in the right chamber 3 and passes through the first flow slot 4, the gear gap of the liquid on the driving synchronous belt 11 is driven, and the liquid continuously enters the left chamber 2 through the first flow slot 4; when the driven synchronous belt 12 runs in the right chamber 3 and passes through the second flow slot 5, the gear clearance of the liquid on the driven synchronous belt 12 is driven, so that the liquid continuously enters the left chamber 2 through the second flow slot 5; meanwhile, the driving synchronous belt 11 and the driven synchronous belt 12 in the left chamber 2 are meshed together to enter the plugging groove 6, and no gap exists in the plugging groove 6, so that liquid is plugged in the left chamber 2; finally, the liquid is fully collected in the left chamber 2 and discharged from the outlet 14, and the operation is circulated, in the whole process, the liquid is enabled to uniformly flow from the right chamber 3 to the left chamber 2 in the driving synchronous belt 11 and the driven synchronous belt 12 by controlling the rotating speed of the motor 15, the uniform self-priming capability is generated, and the stability of the liquid flow is ensured.
According to the synchronous belt dosing pump disclosed by the invention, the shell is formed by high-wear-resistance self-lubricating polytetrafluoroethylene plastic and carbon fiber in a die-casting manner, and the driving synchronous belt and the driven synchronous belt are made of elastic polyurethane materials and can be effectively sealed with the shell in the first flow groove, the second flow groove and the plugging groove, so that once a calibration coefficient is stable for a long time, the flow is stable, the service life is long, no leakage exists, the precision is high, and the requirement on the processing precision is not high; the synchronous belt quantitative pump has no metal parts inside, has the characteristics of acid and alkali resistance and self lubrication, and can be widely applied to occasions needing accurate quantitative supply of various fluids, such as petrochemical industry, fine chemical industry, medicines and foods.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the technical scope of the present invention.
Claims (5)
1. The utility model provides a hold-in range dosing pump, it includes motor (15), its characterized in that: it also comprises a housing (1); the shell (1) is internally provided with a left chamber (2), a right chamber (3), a first flow groove (4), a second flow groove (5) and a blocking groove (6) which are communicated with the left chamber (2) and the right chamber (3);
a driving wheel (7) and a left tensioning wheel (8) are arranged in the left chamber (2), and a driven wheel (9) and a right tensioning wheel (10) are arranged in the right chamber (3);
an output shaft of the motor (15) is connected with a shaft of the driving wheel (7), the driving wheel (7) is connected with the driven wheel (9) through a driving synchronous belt (11), and the driving synchronous belt (11) penetrates through the first flow tank (4) and the plugging tank (6) and is in sealing connection with the first flow tank (4) and the plugging tank (6); the left tensioning wheel (8) is connected with the right tensioning wheel (10) through a driven synchronous belt (12), the driven synchronous belt (12) penetrates through the second flow groove (5) and the plugging groove (6), the driven synchronous belt (12) is in sealing connection with the second flow groove (5), the driven synchronous belt (12) is meshed with the driving synchronous belt (11), and the meshed part is in sealing connection with the plugging groove (6);
the right chamber (3) is communicated with an inlet (13), and the left chamber (2) is communicated with an outlet (14);
the shell (1) is made of polytetrafluoroethylene plastics and carbon fiber materials in a die-casting mode, the driving synchronous belt (11) and the driven synchronous belt (12) are made of polyurethane materials, and the driving wheel (7), the left tension wheel (8), the driven wheel (9) and the right tension wheel (10) are made of polyamide fibers.
2. The synchronous belt dosing pump of claim 1, wherein: and the gears of the driving synchronous belt (11) are respectively meshed with the gears of the driving wheel (7) and the driven wheel (9).
3. The synchronous belt dosing pump of claim 1, wherein: the shafts of the driving wheel (7), the left tension wheel (8), the driven wheel (9) and the right tension wheel (10) are all made of zirconium dioxide ceramics.
4. The synchronous belt dosing pump of claim 1, wherein: the motor (15) adopts a stepping motor.
5. A method of operating a synchronous belt dosing pump as claimed in claim 1 wherein: the working method of the synchronous belt quantitative pump comprises the following steps:
firstly, injecting liquid into the right chamber (3) from the inlet (13) to fill the whole right chamber (3);
then, a motor (15) is started, the motor (15) converts electric energy into rotary mechanical energy, namely rotary force, the rotary force drives a driving wheel (7) to rotate, then the driving synchronous belt (11) connected with the driving wheel (7) is driven to run anticlockwise, the driving synchronous belt (11) drives a driven synchronous belt (12) meshed with the driving synchronous belt to run anticlockwise, therefore, when the driving synchronous belt (11) runs in the right chamber (3) and penetrates through a first flow groove (4), gear gaps of liquid on the driving synchronous belt (11) are driven, and the liquid continuously enters a left chamber (2) through the first flow groove (4); when the driven synchronous belt (12) runs in the right chamber (3) and passes through the second flow groove (5), the gear clearance of the liquid on the driven synchronous belt (12) is driven, so that the liquid continuously enters the left chamber (2) through the second flow groove (5);
meanwhile, the driving synchronous belt (11) and the driven synchronous belt (12) in the left chamber (2) are meshed together to enter the plugging groove (6), and no gap exists in the plugging groove (6), so that liquid is plugged in the left chamber (2);
finally, the liquid is collected in the left chamber (2) and discharged from the outlet (14) and circulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010488665.7A CN111577568B (en) | 2020-06-02 | 2020-06-02 | Synchronous belt constant delivery pump and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010488665.7A CN111577568B (en) | 2020-06-02 | 2020-06-02 | Synchronous belt constant delivery pump and method |
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| Publication Number | Publication Date |
|---|---|
| CN111577568A CN111577568A (en) | 2020-08-25 |
| CN111577568B true CN111577568B (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010488665.7A Active CN111577568B (en) | 2020-06-02 | 2020-06-02 | Synchronous belt constant delivery pump and method |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES445021A1 (en) * | 1976-02-10 | 1977-06-01 | Bendiberica Sa | Gear pump |
| DE3827489C1 (en) * | 1988-08-12 | 1989-10-12 | Gruenbeck Wasseraufbereitung Gmbh, 8884 Hoechstaedt, De | |
| ATE284779T1 (en) * | 1999-09-03 | 2005-01-15 | Datron Electronic Gmbh | METHOD FOR THE DOSAGED APPLICATION OF A STRAIN OF A VISCOUS MEDIUM AND FEED PUMP FOR CARRYING OUT THIS METHOD |
| CN201739451U (en) * | 2010-07-02 | 2011-02-09 | 陕西科技大学 | High-speed synchronous belt transmission device |
| WO2013029999A1 (en) * | 2011-09-02 | 2013-03-07 | F. Hoffmann-La Roche Ag | Dosing unit for an ambulatory infusion device |
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2020
- 2020-06-02 CN CN202010488665.7A patent/CN111577568B/en active Active
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| CN111577568A (en) | 2020-08-25 |
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