Double-pump-head digital electric proportional quantitative adding pump

Abstract

The utility model relates to the technical field of pump machines, and discloses a double-pump-head digital electric proportional quantitative adding pump which comprises a control main board, a motor driver, a pump control main box body and a driving gear motor, and the two sides of the pump control main box body are provided with a first diaphragm cavity and a second diaphragm cavity respectively. The driving gear motor is arranged at the position, close to the upper end, of the interior of the pumping control main box body, the motor driver is arranged at the position, close to the lower end, of the interior of the pumping control main box body, the control mainboard is arranged at the position, close to the lower end, of the front end of the pumping control main box body, the control mainboard and the motor driver are arranged side by side, and the control mainboard is arranged at the rear end of the motor driver. According to the utility model, the two pump heads are controlled through the eccentric combination, so that the pump heads can conveniently add two different liquids at the same time and can also add the liquids at the same flow or in different flow mixing proportions, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of pump machines, in particular to a double-pump-head digital electric proportional quantitative adding pump. Background Art

[0002] A pump is a machine that transports fluids or pressurizes fluids. It transfers the mechanical energy of the prime mover or other external energy to the liquid, thereby increasing the energy of the liquid. Pumps are mainly used to transport liquids such as water, oil, acid and alkali liquids, emulsions, suspensions and liquid metals. They can also transport liquid-gas mixtures and liquids containing suspended solids.

[0003] The existing pumps are mainly purely mechanical when used for drug proportioning, so the dosing accuracy is insufficient, the effect is poor, there is no intelligence, and it is difficult to flexibly transport the drug solution. For this reason, we provide a dual-pump head digital electric proportional quantitative addition pump to solve the problem. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a dual-pump head digital electric proportional quantitative addition pump is proposed. When using this device, the two pump heads are controlled by an eccentric combination, so that the pump heads can add two different liquids at the same time, and can also add mixed proportions with the same flow rate or different flow rates, which is highly practical.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual-pump head digital electric proportional quantitative addition pump, comprising a control mainboard, a motor driver, a pump control main box and a driving reduction motor, a first diaphragm cavity and a second diaphragm cavity are respectively arranged on both sides of the pump control main box, the driving reduction motor is arranged at the upper end of the interior of the pump control main box, the motor driver is arranged at the lower end of the interior of the pump control main box, the control mainboard is arranged at the front end of the pump control main box, the control mainboard is side by side with the motor driver, and the control mainboard is arranged at the rear end of the motor driver.

[0006] The first diaphragm cavity and the second diaphragm cavity are provided with a first pump head and a second pump head through a bolt thread sleeve, a first diaphragm and a second diaphragm are provided between the first diaphragm cavity, the second diaphragm cavity and the first pump head and the second pump head, an eccentric combination is provided inside the pump control main box near the front end, a reciprocating driving connecting rod is provided outside the eccentric combination, and the two sides of the reciprocating driving connecting rod respectively penetrate the first diaphragm cavity, the second diaphragm cavity, the first diaphragm reinforcement plate and the second diaphragm reinforcement plate and are clamped with the first diaphragm and the second diaphragm, a Hall sensor is fixedly provided inside the pump control main box near the front end of the driving reduction motor, and the first pump head and the second pump head are provided with liquid inlet and outlet;

[0007] Through the above technical solution, different liquids can be added in proportion through the two pump heads, and then the two pump heads suck in and spit out at the same time. They can also be configured to suck in the left and spit out the right or suck in the right and spit out the left. The sizes of the two pump heads can also be changed according to the proportion. At the same time, the two pump heads can be connected in series to increase the flow rate and reduce pulses, which is highly practical.

[0008] Furthermore, the driving reduction motor is configured as a maintenance-free gear reduction motor;

[0009] Through the above technical solutions, including AC or DC, variable frequency motors, stepper motors, permanent magnet motors, and servo motors, the safety of production is improved and it is convenient to use for a long time.

[0010] Furthermore, the Hall sensor signal sensing head is fixed inside the pump control main box, and the Hall sensor signal sensing head is connected to the control main board through an output wire;

[0011] Through the above technical solution, when the device is used, the rotation speed or angle of the eccentric combination can be calculated according to the Hall signal, so as to calculate the number of reciprocating strokes of the diaphragm to accurately calculate the flow rate that needs to be added.

[0012] Furthermore, the motor driver is connected to the control mainboard via an input wire, and the other end of the motor driver is connected to the driving reduction motor via an output wire;

[0013] Through the above technical solution, when the device is used, the motor driver is accurately controlled by controlling the main board, and the motor driver can accurately control the speed and angle of the driving reduction motor.

[0014] Further, the motor driver is an independent frequency converter, driver or a driver integrated with the motor;

[0015] Through the above technical solution, when the device is used, the independent frequency converter and driver are convenient for maintenance, and the driver integrated with the motor is convenient for installation.

[0016] Furthermore, the reciprocating drive connecting rod is cast in one piece or in separate pieces;

[0017] Through the above technical solution, when the device is used, the reciprocating drive connecting rod is cast in one piece, which has low cost and high strength, while it is convenient for maintenance when it is manufactured in separate parts.

[0018] Furthermore, the pump control main box is made of chemical-resistant plastic injection molding;

[0019] Through the above technical solution, chemical-resistant plastic is used to prevent liquid from corroding the main box body, thereby extending the service life.

[0020] Furthermore, there are two types of eccentricity on the eccentric combination, one is eccentric in one direction at the same time, which is used for the dual pump heads to inhale and discharge at the same time, and the other is 180 degrees eccentricity, which is used for inhalation at one end and discharge at the other end;

[0021] Through the above technical solution, the pump head can add two different liquids at the same time, and can also add them in a mixed ratio with the same flow rate or different flow rates, which is highly practical.

[0022] The utility model has the following beneficial effects:

[0023] The utility model proposes a dual-pump head digital electric proportional quantitative adding pump, which can add different liquids in proportion through two pump heads, and then the two pump heads suck in and spit out together, and can also be configured as left suction and right discharge or right suction and left discharge, and the sizes of the two pump heads can also be replaced according to the proportion. At the same time, the two pump heads can be connected in series to increase the flow rate and reduce pulses, so that the pump can add two different liquids at the same time, and add mixed proportions with the same flow rate or different flow rates, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the axial side of the utility model;

[0025] Figure 2 This is a schematic diagram of the explosion of the utility model near the first pump head;

[0026] Figure 3 This is a schematic diagram of the explosion of the utility model near the second pump head;

[0027] Figure 4 It is a rear view schematic diagram of the utility model.

[0028] Legend:

[0029] 1. Pump control main box; 2. First pump head; 3. First diaphragm; 4. First diaphragm reinforcement plate; 5. First diaphragm cavity; 6. Reciprocating drive connecting rod; 7. Eccentric combination; 8. Drive reduction motor; 9. Control main board; 10. Motor driver; 11. Liquid inlet and outlet; 12. Hall sensor; 13. Second diaphragm cavity; 14. Second diaphragm reinforcement plate; 15. Second diaphragm; 16. Second pump head. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example:

[0032] Reference Figure 1-4 The utility model provides an embodiment: a dual-pump head digital electric proportional quantitative adding pump, including a control mainboard 9, a motor driver 10, a pump control main box 1, and a driving reduction motor 8. The pump control main box 1 is made of chemical-resistant plastic injection molding to prevent the liquid from corroding the pump control main box 1. The first diaphragm cavity 5 and the second diaphragm cavity 13 are respectively arranged on both sides of the pump control main box 1. The driving reduction motor 8 is arranged at the upper end of the inside of the pump control main box 1, and the motor driver 10 is arranged at the lower end of the inside of the pump control main box 1. The control mainboard 9 is arranged at the lower end of the front end of the pump control main box 1, side by side with the motor driver 10, and arranged at the rear end of the motor driver 10. The motor driver 10 is accurately controlled by the control mainboard 9, so that the speed and angle of the driving reduction motor 8 can be accurately controlled.

[0033] The first diaphragm cavity 5 and the second diaphragm cavity 13 are provided with the first pump head 2 and the second pump head 16 through the bolt thread sleeve, and the first diaphragm cavity 5, the second diaphragm cavity 13 and the first pump head 2, the second pump head 16 are provided with the first diaphragm 3 and the second diaphragm 15. The interior of the pump control main box 1 is provided with an eccentric combination 7 at the front end, and the outside of the eccentric combination 7 is provided with a reciprocating drive connecting rod 6. The reciprocating drive connecting rod 6 passes through the diaphragm reinforcement plate to pull the diaphragm to reciprocate, thereby completing the liquid suction and discharge. The two sides of the reciprocating drive connecting rod 6 respectively penetrate the first diaphragm cavity 5, the second diaphragm cavity 13, the first diaphragm reinforcement plate 4 and the second diaphragm reinforcement plate 14 and are clamped with the first diaphragm 3 and the second diaphragm 15. The interior of the pump control main box 1 is close to the driving reduction motor A Hall sensor 12 is fixedly arranged at the front end of 8 to calculate the rotation speed or angle of the eccentric combination 7, thereby calculating the number of reciprocating strokes of the diaphragm to accurately calculate the flow rate that needs to be added. The first pump head 2 and the second pump head 16 are internally provided with a liquid inlet and outlet 11. Different liquids can be added in proportion through the two pump heads, and then the two pump heads are required to inhale and spit out at the same time. They can also be selected as left suction and right spitting out or right suction and left spitting out. The sizes of the two pump heads can also be replaced according to the proportion. At the same time, the two pump heads can be connected in series to increase the flow rate and reduce pulses. It is highly practical. The control main board 9 has display function, operation function, and control function, including setting buttons, MODBUS-RS485, 4-20MA input, and output functions.

[0034] The driving reduction motor 8 is set as a maintenance-free gear reduction motor, including AC or DC, variable frequency motor, stepper motor, permanent magnet motor, servo motor, which improves the safety of production and is convenient for long-term use. The signal sensing head of the Hall sensor 12 is fixed inside the pump control main box 1 and is connected to the control main board 9 through an output wire. When using this device, the speed or angle of the eccentric combination 7 can be calculated according to the Hall signal, which is convenient for calculating the number of reciprocating strokes of the diaphragm to accurately calculate the flow rate that needs to be added. The motor driver 10 is connected to the control main board 9 through an input wire, and the other end is connected to the driving reduction motor 8 through an output wire. When using this device, the motor driver 10 is accurately controlled by the control main board 9, and the motor driver 10 can accurately control the speed and angle of the driving reduction motor 8.

[0035] The motor driver 10 can be an independent frequency converter or driver, or a driver integrated with a motor. When using the present device, the independent frequency converter or driver is convenient for maintenance, and the driver integrated with a motor is convenient for installation. The reciprocating drive connecting rod 6 is cast as one piece, or it can be manufactured in split parts. When using the present device, when the reciprocating drive connecting rod 6 is cast as one piece, the cost is low and the strength is high, and when it is manufactured in split parts, it is convenient for maintenance. The pump control main box 1 is made of chemical-resistant plastic injection molding. The chemical-resistant plastic prevents the liquid from corroding the main box and extends its service life. There are two types of eccentricity on the eccentric combination 7, which are biased in one direction at the same time for dual pump heads to suck and discharge at the same time, and the other is 180 degrees biased for adding one end to suck and the other end to discharge. The pump head can add two different liquids at the same time, or add them in a mixed ratio of the same flow rate or different flow rates, which is highly practical.

[0036] Working principle: When using this device, first, the motor driver 10 is accurately controlled by controlling the main board 9, and then the motor driver 10 is used to accurately control the speed and angle of the driving reduction motor 8. The speed or angle of the eccentric combination 7 can also be calculated according to the Hall signal, so as to calculate the number of reciprocating strokes of the diaphragm to accurately calculate the flow rate that needs to be added, and then drive the eccentric combination 7, and then the bearing on the eccentric combination 7 drives the reciprocating drive connecting rod 6, and finally, the reciprocating drive connecting rod 6 passes through the diaphragm reinforcement plate to pull the diaphragm to reciprocate, thereby completing the liquid suction and discharge.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dual-pump digital electric proportional quantitative addition pump, comprising a control mainboard (9), a motor driver (10), a pump control main box (1) and a driving reduction motor (8), characterized in that: A first diaphragm cavity (5) and a second diaphragm cavity (13) are respectively arranged on both sides of the pump control main housing (1); the driving reduction motor (8) is arranged at the upper end inside the pump control main housing (1); the motor driver (10) is arranged at the lower end inside the pump control main housing (1); the control main board (9) is arranged at the lower end of the front end of the pump control main housing (1); the control main board (9) and the motor driver (10) are arranged side by side; and the control main board (9) is arranged at the rear end of the motor driver (10); The first diaphragm cavity (5) and the second diaphragm cavity (13) are provided with a first pump head (2) and a second pump head (16) through bolt thread sleeves; a first diaphragm (3) and a second diaphragm (15) are provided between the first diaphragm cavity (5), the second diaphragm cavity (13) and the first pump head (2), the second pump head (16); an eccentric assembly (7) is provided inside the pump control main box (1) near the front end; a reciprocating drive connecting rod (6) is provided outside the eccentric assembly (7); the two sides of the reciprocating drive connecting rod (6) respectively penetrate the first diaphragm cavity (5), the second diaphragm cavity (13), the first diaphragm reinforcement plate (4) and the second diaphragm reinforcement plate (14) and are clamped with the first diaphragm (3) and the second diaphragm (15); a Hall sensor (12) is fixedly provided inside the pump control main box (1) near the front end of the driving reduction motor (8); and liquid inlet and outlet ports (11) are provided inside the first pump head (2) and the second pump head (16).

2. According to claim 1, a dual-pump-head digital electric proportional quantitative addition pump, characterized in that: The driving reduction motor (8) is configured as a maintenance-free gear reduction motor.

3. According to claim 1, a dual-pump-head digital electric proportional quantitative addition pump, characterized in that: The signal sensing head of the Hall sensor (12) is fixed inside the pump control main box (1), and the signal sensing head of the Hall sensor (12) is connected to the control main board (9) via an output wire.

4. According to claim 1, a dual-pump-head digital electric proportional quantitative addition pump, characterized in that: The motor driver (10) is connected to the control mainboard (9) via an input wire, and the other end of the motor driver (10) is connected to the driving reduction motor (8) via an output wire.

5. According to claim 1, a dual-pump-head digital electric proportional quantitative addition pump, characterized in that: The motor driver (10) is an independent frequency converter, driver or a driver integrated with the motor.

6. According to claim 1, a dual-pump-head digital electric proportional quantitative addition pump, characterized in that: The reciprocating driving connecting rod (6) is cast in one piece or in separate pieces.

7. According to claim 1, a dual-pump-head digital electric proportional quantitative addition pump, characterized in that: The pump control main box (1) is made of chemical-resistant plastic injection molding.

8. According to claim 1, a dual-pump-head digital electric proportional quantitative addition pump, characterized in that: There are two types of eccentricity on the eccentric assembly (7), one is eccentric in one direction at the same time, which is used for the dual pump heads to suck and discharge at the same time, and the other is 180 degrees eccentricity, which is used for the addition of suction at one end and discharge at the other end.

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