阅读说明：本技术 一种同步带定量泵及方法 (Synchronous belt constant delivery pump and method ) 是由 徐宇航 于 2020-06-02 设计创作，主要内容包括：本发明公开了一种同步带定量泵,包括电机、壳体；壳体内具有左腔室、右腔室以及第一流量槽、第二流量槽、封堵槽；左腔室内设置有驱动轮和左涨紧轮,右腔室内设置有从动轮和右涨紧轮；电机的输出轴与驱动轮的轴相连接,驱动轮和从动轮通过主动同步带相连接,主动同步带穿过第一流量槽和封堵槽,并与第一流量槽和封堵槽密封连接；左涨紧轮和右涨紧轮通过从动同步带相连接,从动同步带穿过第二流量槽和封堵槽,从动同步带与第二流量槽密封连接,从动同步带与主动同步带相齿合且相齿合部分与封堵槽密封连接；右腔室连通有入口,左腔室连通有出口。本产品具有流量稳定、寿命长、无泄漏、精度高、耐酸碱、自润滑的特点。(The invention discloses a synchronous belt constant delivery pump, which comprises 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, 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 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. The product has the characteristics of stable flow, long service life, no leakage, high precision, acid and alkali resistance and self lubrication.)

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).

2. The synchronous belt dosing pump of claim 1, wherein: the novel high-speed belt conveyor is characterized in that 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 tensioning wheel (8), the driven wheel (9) and the right tensioning wheel (10) are made of polyamide fibers.

3. The synchronous belt dosing pump of claim 1, wherein: and the gears of the driving synchronous belt (11) are meshed with the gears of the driving wheel (7) and the driven wheel (9) respectively.

4. The synchronous belt dosing pump of claim 1, wherein: 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.

5. The synchronous belt dosing pump of claim 1, wherein: the motor (15) adopts a stepping motor.

6. A synchronous belt dosing pump and method 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 passes 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.

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 bearing of installing of constant delivery pump is bad easily, and the noisy scheduling problem of pump is big 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 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, a right cavity, 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 and the right cavity;

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, 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 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 tensioning wheel, the driven wheel and the right tensioning wheel are made of polyamide fibers.

Further, the gears of the driving synchronous belt are meshed with the gears of the driving wheel and the driven wheel respectively.

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 cavity are meshed together to enter the plugging groove, and no gap exists in the plugging groove, so that liquid is plugged in the left cavity;

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 tension wheel; 9. a driven wheel; 10. a right tension wheel; 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 quantitative pump shown in fig. 1 and 2 comprises a motor 15, preferably, the motor 15 adopts a commercially available stepping motor as power supply equipment, and further comprises a shell 1, preferably, the shell 1 is made of polytetrafluoroethylene plastic and carbon fiber materials in a die-casting manner, wherein the polytetrafluoroethylene plastic has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, is almost insoluble in all solvents, and meanwhile, the polytetrafluoroethylene plastic has the characteristics of high temperature resistance, extremely low friction coefficient and self-lubricating property, and the carbon fiber materials are special fibers consisting of carbon elements, have the characteristic of friction resistance, and ensure the long service life and the wear resistance of the shell 1; 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 tension wheel 8 are arranged in the left chamber 2, and a driven wheel 9 and a right tension 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 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 tank 5 and the plugging tank 6, the driven synchronous belt 12 is connected with the second flow tank 5 in a sealing mode, the driven synchronous belt 12 is meshed with the driving synchronous belt 11, and the meshed part is connected with the plugging tank 6 in a sealing mode; the gear of the driving synchronous belt 11 is meshed with the gears of the driving wheel 7 and the driven wheel 9 respectively; 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 rotating mechanical energy, i.e. the rotating force, the rotating 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 groove 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 groove 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 quantitative 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, 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.