CN220081643U - High-pressure high-flow hydraulic diaphragm metering pump - Google Patents
High-pressure high-flow hydraulic diaphragm metering pump Download PDFInfo
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- CN220081643U CN220081643U CN202320873510.4U CN202320873510U CN220081643U CN 220081643 U CN220081643 U CN 220081643U CN 202320873510 U CN202320873510 U CN 202320873510U CN 220081643 U CN220081643 U CN 220081643U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of hydraulic diaphragm metering pumps, and discloses a high-pressure high-flow hydraulic diaphragm metering pump, which comprises a shell, wherein the inner side of the shell is movably connected with a transmission shaft for transmitting power of a speed reducer, and the inner side of the shell is movably connected with a swing crank for transmitting the power of the transmission shaft; the speed reduction power of the speed reducer is transmitted to the transmission shaft, the transmission structural strength of the hydraulic diaphragm metering pump is effectively improved, the processing difficulty of the hydraulic diaphragm metering pump is reduced, meanwhile, the plunger rod is directly connected with the diaphragm plate to drive the diaphragm plate to deform, the diaphragm plate is guaranteed to be completely reset after being deformed, the limiting back plate is embedded and mounted on the back of the diaphragm plate, so that the limiting back plate and the pump head plate are separated and independently bear pressure, the limiting back plate bears pressure and is transmitted to the surface of the pump shell, the pump head plate independently bears pressure, the compression strength of external fasteners of the pump head plate is reduced, and the service lives of the limiting back plate and the pump head plate are prolonged.
Description
Technical Field
The utility model relates to the technical field of hydraulic diaphragm metering pumps, in particular to a high-pressure high-flow hydraulic diaphragm metering pump.
Background
Hydraulic diaphragm metering, also known as a control pump, is the primary type of actuator that operates by power to vary fluid flow by receiving control signals from a regulating control unit. The diaphragm pump receives the control signal of the regulator or computer to change the flow rate of the medium to be regulated, so that the regulated parameter is maintained in the required range, and the automation of the production process is achieved. The prior hydraulic diaphragm metering pump has the defects that the prior hydraulic diaphragm metering pump mainly adopts a worm and gear type, the bearing plunger force is limited, the requirement on the matching precision of the worm and gear is high, the processing precision and the assembly precision of parts are high, the processing and manufacturing difficulty is increased, the stroke adjusting mode is the blocking of an oil way controlled by a plunger, the linear precision of a product performance curve is influenced, the prior hydraulic diaphragm metering pump adopts a spring reset mode, the aging of the spring can lead to the failure of complete reset of the diaphragm, the performance of a diaphragm pump is influenced, the diaphragm of the prior hydraulic diaphragm metering pump supports a back plate, a pump head and a shell adopt a serial mode, and the hydraulic force generated by diaphragm action can be simultaneously acted outside the back plate and the pump head, so that the bearing pressure of the back plate and the pump head parts is increased, and the service life of the pump head bearing fastener is influenced.
Disclosure of Invention
In order to solve the existing hydraulic diaphragm metering pump, the transmission speed reducing device mainly adopts a worm and gear type, the bearing plunger force is limited, the requirement on the matching precision of the worm and gear is considered, the processing precision and the assembly precision of parts are high, the processing and manufacturing difficulty is increased, the existing hydraulic diaphragm metering pump is provided with a stroke adjusting mode which is to control the blocking of an oil way through the plunger, the linear precision of a product performance curve is influenced, the existing hydraulic diaphragm metering pump is provided with a spring reset mode, the diaphragm cannot be completely reset due to the aging of the spring, the performance of the diaphragm pump is influenced, the diaphragm of the existing hydraulic diaphragm metering pump supports the back plate, the pump head and the shell adopt a serial connection mode, and the hydraulic force generated by diaphragm action can be simultaneously acted on the back plate and the outside of the pump head, so that the bearing pressure of the back plate and the pump head parts is increased, and the service life of the pump head pressure-bearing fastener is influenced. The problems of the prior art are solved, and the purposes of high transmission structure strength, easy processing, high and reliable stroke adjustment precision, complete bending and resetting of the diaphragm and low bearing pressure intensity of the pump head and the back plate are achieved.
The utility model is realized by the following technical scheme: the utility model provides a high pressure large-traffic MFS hydraulic pressure diaphragm metering pump, includes the casing, the inboard swing joint of casing has the transmission shaft that is used for transmitting the speed reducer power, the inside swing joint of casing has the swing crank that is used for transmitting the transmission shaft power, the inside swing joint of casing has the fly leaf that is used for transmitting swing crank power, the outside swing joint of fly leaf has the connecting rod that is used for transmitting swing crank power, the inboard swing joint of casing has the slide shaft that is used for transmitting connecting rod power, the inboard swing joint of casing has the screw rod that is used for adjusting the slide shaft at the inboard sliding stroke of casing, the outside swing joint of screw rod has the displacement board that is used for cooperating the screw rod to adjust the slide shaft at the inboard sliding stroke of casing. The outer part of the shell is fixedly connected with a pump shell for conveying liquid, the inner side of the pump shell is movably connected with a plunger rod for transmitting the power of the sliding shaft, the outer part of the plunger rod is fixedly connected with a diaphragm plate for generating suction force inside the pump shell, and the inner part of the pump shell is fixedly connected with a limit back plate for supporting the sliding acting force of the diaphragm plate.
Further, a pump head plate for controlling the opening and closing of the pump shell and bearing the action pressure of the diaphragm plate is movably connected to the outside of the pump shell, an inlet one-way valve for conveying liquid to flow into the pump shell is fixedly connected to the outside of the pump shell, an outlet one-way valve for conveying liquid to flow out of the pump shell is fixedly connected to the outside of the pump shell, an exhaust valve for exhausting the inside of the pump shell is fixedly connected to the inside of the pump shell, and a safety valve for protecting the internal pressure of the pump shell is fixedly connected to the inside of the pump shell.
Further, the transmission shaft is fixedly connected with a speed reducer outside the shell, and two ends of the swing crank are respectively and movably connected with the outside of the transmission shaft and the outside of the movable plate.
Further, both ends of the movable plate are respectively movably connected to the inside of the shell and the outside of the displacement plate, both ends of the connecting rod are respectively movably connected to the outside of the movable plate and the outside of the sliding shaft, and the sliding shaft is in sliding sealing connection with the inner side of the shell.
Further, the screw rod is in rotary sealing connection with the inner side of the shell, and the displacement plate is in threaded transmission connection with the screw rod.
Further, the plunger rod is fixedly connected with the end part of the sliding shaft in a clamping way, the plunger rod penetrates through the center of the limiting back plate to be fixedly connected with the outer part of the diaphragm plate, and the diaphragm plate is fixedly connected with the inner side of the pump shell through the limiting back plate.
Further, the limit back plate corresponds to the position of the diaphragm plate, and the pump head plate corresponds to the position of the diaphragm plate.
The utility model provides a high-pressure high-flow hydraulic diaphragm metering pump. The beneficial effects are as follows:
the speed reduction power of the speed reducer is transmitted to the transmission shaft, the transmission shaft rotates to enable the swing crank to rotate, the swing crank rotates to enable the movable plate to rotate, the movable plate rotates to enable the connecting rod to drive the sliding shaft to slide in the shell to drive the plunger rod to reciprocate, the speed reducer is matched with the transmission shaft, the swing crank, the movable plate, the connecting rod and the sliding shaft to form a crank mechanism, the transmission structural strength of the hydraulic diaphragm metering pump is effectively improved, the processing difficulty of the hydraulic diaphragm metering pump is reduced, the screw rod rotates in the inner side of the shell to enable the displacement plate to slide in the inner side of the shell along the axial direction of the screw rod, the displacement plate slides to drive the movable plate to rotate in the shell to change the sliding stroke of the sliding shaft in the shell, the sliding shaft slides to change the stroke length of the plunger rod in the pump shell, compared with the mode that the plunger oil way is adopted to adjust the stroke length of the plunger, the screw rod and the displacement plate are adopted to adjust high precision, meanwhile, the plunger rod is directly connected with the diaphragm plate to drive the diaphragm plate to deform, the diaphragm plate is guaranteed to reset completely after being deformed, the limiting back plate is embedded and arranged on the back of the diaphragm plate, so that the limiting back plate and the pump head plate are separated and independently bear pressure, the limiting back plate bears pressure to be transmitted to the surface of the pump shell, the pump head plate independently bears pressure, the compression strength of external fasteners of the pump head plate is reduced, and the service lives of the limiting back plate and the pump head plate are prolonged.
Drawings
FIG. 1 is a schematic diagram of the internal elevation structure of a deceleration driving mechanism of a hydraulic diaphragm metering pump of the present utility model;
FIG. 2 is a schematic diagram of a left-hand structure of a deceleration driving mechanism of a hydraulic diaphragm metering pump of the utility model;
FIG. 3 is a schematic diagram of the internal top view structure of the deceleration driving mechanism of the hydraulic diaphragm metering pump of the present utility model;
FIG. 4 is a schematic diagram of the overall appearance of the deceleration driving mechanism of the hydraulic diaphragm metering pump of the present utility model;
FIG. 5 is a schematic diagram of the right-hand structure of the hydraulic delivery mechanism of the hydraulic diaphragm metering pump of the present utility model;
FIG. 6 is a schematic diagram of a partial enlarged structure of an exhaust valve of the hydraulic delivery mechanism of the hydraulic diaphragm metering pump of the present utility model;
FIG. 7 is a schematic diagram of the hydraulic delivery mechanism of the hydraulic diaphragm metering pump of the present utility model in elevation;
FIG. 8 is an enlarged schematic view of the structure of the inner portion B of FIG. 7 according to the present utility model;
fig. 9 is a schematic diagram of the overall appearance structure of the hydraulic conveying mechanism of the hydraulic diaphragm metering pump.
In the figure: 1. a housing; 11. a transmission shaft; 12. a swing crank; 13. a movable plate; 14. a connecting rod; 15. a slide shaft; 16. a screw; 17. a displacement plate; 2. a pump housing; 21. a plunger rod; 22. a diaphragm plate; 23. a limit backboard; 24. a pump head plate; 25. an inlet check valve; 26. an outlet check valve; 27. an exhaust valve; 28. a safety valve.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The high pressure, high flow MFS1400 hydraulic diaphragm metering pump is illustrated as follows:
examples
Referring to fig. 1-4, a high-pressure high-flow hydraulic diaphragm metering pump comprises a shell 1, wherein a transmission shaft 11 for transmitting power of a speed reducer is movably connected to the inner side of the shell 1, a swing crank 12 for transmitting power of the transmission shaft 11 is movably connected to the inner side of the shell 1, a movable plate 13 for transmitting power of the swing crank 12 is movably connected to the inner side of the shell 1, the transmission shaft 11 is fixedly connected with the speed reducer outside the shell 1, and two ends of the swing crank 12 are movably connected to the outer side of the transmission shaft 11 and the outer side of the movable plate 13 respectively.
The outside swing joint of fly leaf 13 has the connecting rod 14 that is used for transmitting swing crank 12 power, and the inboard swing joint of casing 1 has the slide shaft 15 that is used for transmitting connecting rod 14 power, and the both ends of fly leaf 13 are swing joint respectively in the inside of casing 1 and the outside of displacement board 17, and the both ends of connecting rod 14 are swing joint respectively in the outside of fly leaf 13 and the outside of slide shaft 15, and slide shaft 15 and the inboard sliding seal connection of casing 1.
The inside of the shell 1 is movably connected with a screw rod 16 for adjusting the sliding stroke of the sliding shaft 15 inside the shell 1, the outside of the screw rod 16 is movably connected with a displacement plate 17 for adjusting the sliding stroke of the sliding shaft 15 inside the shell 1 by matching with the screw rod 16, the screw rod 16 is in rotary sealing connection with the inside of the shell 1, and the displacement plate 17 is in threaded transmission connection with the screw rod 16.
The user uses spanner to operate screw rod 16 and rotates inside casing 1, screw rod 16 rotates and drives displacement board 17 at the inside axial slip along screw rod 16 of casing 1, displacement board 17 slides and drives fly leaf 13 and rotate at casing 1, when fly leaf 13 clockwise rotation, fly leaf 13 and displacement board 17 link end keep away from slide shaft 15 this moment, slide shaft 15 reduces at casing 1 inside sliding stroke simultaneously, simultaneously when fly leaf 13 anticlockwise rotation, and fly leaf 13 and displacement board 17 link end are close to slide shaft 15 this moment, and slide shaft 15 increases at casing 1 inside sliding stroke.
The diaphragm metering pump runs and drives the transmission shaft 11 to rotate through the speed reducer, the transmission shaft 11 rotates to drive the swing crank 12 to rotate, the swing crank 12 rotates to drive the movable plate 13 to rotate, the movable plate 13 rotates to drive the connecting rod 14 to rotate, and the connecting rod 14 rotates to drive the sliding shaft 15 to slide back and forth in the shell 1.
The speed reducer is used for reducing power and transmitting the speed reducer to the transmission shaft 11, the transmission shaft 11 rotates to enable the swing crank 12 to rotate, the swing crank 12 rotates to enable the movable plate 13 to rotate, the movable plate 13 rotates to enable the connecting rod 14 to rotate to drive the sliding shaft 15 to slide in the shell 1 to drive the plunger rod 21 to reciprocate, the speed reducer is used for matching with the transmission shaft 11, the swing crank 12, the movable plate 13, the connecting rod 14 and the sliding shaft 15 to form a crank mechanism, the transmission structural strength of the hydraulic diaphragm metering pump is effectively improved, the processing difficulty of the hydraulic diaphragm metering pump is reduced, the screw 16 rotates in the shell 1 to enable the displacement plate 17 to slide in the shell 1 along the axial direction of the screw 16, the displacement plate 17 slides to drive the movable plate 13 to rotate in the shell 1 to change the sliding stroke of the sliding shaft 15 in the shell 1, the sliding shaft 15 slides to change the stroke length of the plunger rod 21 in the shell 2, and compared with the adoption of a plunger oil way to adjust the stroke length of the plunger piston, and the adjustment accuracy of the screw 16 and the displacement plate 17 is high.
Examples
Referring to fig. 1 and fig. 5-9, a high-pressure high-flow hydraulic diaphragm metering pump comprises a housing 1, wherein a screw 16 for adjusting the sliding stroke of a sliding shaft 15 on the inner side of the housing 1 is movably connected on the inner side of the housing 1, and a displacement plate 17 for adjusting the sliding stroke of the sliding shaft 15 on the inner side of the housing 1 by matching with the screw 16 is movably connected on the outer side of the screw 16. The outside fixedly connected with of casing 1 is used for carrying the pump case 2 of liquid, and the inboard swing joint of pump case 2 is used for transmitting the plunger rod 21 of slide shaft 15 power, and the outside fixedly connected with of plunger rod 21 is used for the inside diaphragm 22 that produces the suction of pump case 2, and plunger rod 21 and slide shaft 15 tip block fixed connection, plunger rod 21 pass spacing backplate 23 center and the outside fixed connection of diaphragm 22, and diaphragm 22 passes spacing backplate 23 and the inboard fixed connection of pump case 2.
The inside fixedly connected with of pump case 2 is used for supporting diaphragm 22 slip effort spacing backplate 23, the outside swing joint of pump case 2 is used for controlling the pump case 2 switching and bear the pump head board 24 of diaphragm 22 action pressure, the outside fixedly connected with of pump case 2 carries the entry check valve 25 of liquid inflow pump case 2 inside, the outside fixedly connected with of pump case 2 carries the exit check valve 26 of liquid outflow pump case 2 inside, the inboard fixedly connected with of pump case 2 is used for the discharge valve 27 of pump case 2 inside exhaust, the inboard fixedly connected with of pump case 2 is used for the relief valve 28 of pump case 2 inside pressure protection, spacing backplate 23 corresponds with the position of diaphragm 22, pump head board 24 corresponds with the position of diaphragm 22.
According to the first embodiment, the sliding stroke of the sliding shaft 15 inside the housing 1 is reduced, so that the sliding stroke length of the plunger rod 21 inside the pump housing 2 is reduced, and similarly, the sliding stroke of the sliding shaft 15 inside the housing 1 is increased, so that the sliding stroke length of the plunger rod 21 inside the pump housing 2 is increased.
The sliding shaft 15 slides reciprocally to drive the plunger rod 21 to slide reciprocally in the pump shell 2, the plunger rod 21 slides reciprocally to drive the diaphragm plate 22 to deform reciprocally, when the diaphragm plate 22 deforms along the direction of the pump head plate 24, the pump head plate 24 bears the deformation of the diaphragm plate 22 to squeeze the conveying liquid to generate pressure, when the diaphragm plate 22 moves along the limit back plate 23 under the pulling of the plunger rod 21, the limit back plate 23 bears the resetting pressure of the diaphragm plate 22, and the external conveying liquid flows into the pump shell 2 through the inlet one-way valve 25 under the action of the pressure.
The plunger rod 21 is directly connected with the diaphragm plate 22 to drive the diaphragm plate 22 to deform, so that the diaphragm plate 22 is completely reset after being deformed, and the limiting back plate 23 is embedded and arranged on the back of the diaphragm plate 22, so that the limiting back plate 23 and the pump head plate 24 are separated and independently bear pressure, the pressure born by the limiting back plate 23 is transmitted to the surface of the pump shell 2, the pressure born by the pump head plate 24 is independently borne, the compression strength of external fasteners of the pump head plate 24 is reduced, and the service lives of the limiting back plate 23 and the pump head plate 24 are prolonged.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a high pressure large-traffic hydraulic pressure diaphragm metering pump, includes casing (1), its characterized in that: the inside of the shell (1) is movably connected with a transmission shaft (11) for transmitting power of the speed reducer, the inside of the shell (1) is movably connected with a swing crank (12) for transmitting power of the transmission shaft (11), the inside of the shell (1) is movably connected with a movable plate (13) for transmitting power of the swing crank (12), the outside of the movable plate (13) is movably connected with a connecting rod (14) for transmitting power of the swing crank (12), the inside of the shell (1) is movably connected with a sliding shaft (15) for transmitting power of the connecting rod (14), the inside of the shell (1) is movably connected with a screw (16) for adjusting sliding stroke of the sliding shaft (15) at the inside of the shell (1), and the outside of the screw (16) is movably connected with a displacement plate (17) for adjusting sliding stroke of the sliding shaft (15) at the inside of the shell (1) by matching with the screw (16);
the novel hydraulic pump is characterized in that a pump shell (2) for conveying liquid is fixedly connected to the outside of the shell (1), a plunger rod (21) for transmitting power of a sliding shaft (15) is movably connected to the inner side of the pump shell (2), a diaphragm plate (22) for generating suction force inside the pump shell (2) is fixedly connected to the outside of the plunger rod (21), and a limit backboard (23) for supporting sliding acting force of the diaphragm plate (22) is fixedly connected to the inside of the pump shell (2).
2. The high pressure, high flow rate, hydraulic diaphragm metering pump of claim 1, wherein: the pump is characterized in that a pump head plate (24) used for controlling the pump shell (2) to open and close and bearing the action pressure of a diaphragm plate (22) is movably connected to the outside of the pump shell (2), an inlet one-way valve (25) used for conveying liquid to flow into the pump shell (2) is fixedly connected to the outside of the pump shell (2), an outlet one-way valve (26) used for conveying liquid to flow out of the pump shell (2) is fixedly connected to the outside of the pump shell (2), an exhaust valve (27) used for exhausting the inside of the pump shell (2) is fixedly connected to the inside of the pump shell (2), and a safety valve (28) used for protecting the internal pressure of the pump shell (2) is fixedly connected to the inside of the pump shell (2).
3. The high pressure, high flow rate, hydraulic diaphragm metering pump of claim 1, wherein: the transmission shaft (11) is fixedly connected with a speed reducer outside the shell (1), and two ends of the swing crank (12) are respectively and movably connected with the outside of the transmission shaft (11) and the outside of the movable plate (13).
4. The high pressure, high flow rate, hydraulic diaphragm metering pump of claim 1, wherein: the two ends of the movable plate (13) are respectively and movably connected to the inside of the shell (1) and the outside of the displacement plate (17), the two ends of the connecting rod (14) are respectively and movably connected to the outside of the movable plate (13) and the outside of the sliding shaft (15), and the sliding shaft (15) is in sliding sealing connection with the inner side of the shell (1).
5. The high pressure, high flow rate, hydraulic diaphragm metering pump of claim 1, wherein: the screw (16) is in rotary sealing connection with the inner side of the shell (1), and the displacement plate (17) is in threaded transmission connection with the screw (16).
6. The high pressure, high flow rate, hydraulic diaphragm metering pump of claim 1, wherein: the plunger rod (21) is fixedly connected with the end part of the sliding shaft (15) in a clamping way, the plunger rod (21) penetrates through the center of the limiting back plate (23) to be fixedly connected with the outside of the diaphragm plate (22), and the diaphragm plate (22) is fixedly connected with the inner side of the pump shell (2) through the limiting back plate (23).
7. The high pressure, high flow rate hydraulic diaphragm metering pump of claim 2, wherein: the limit backboard (23) corresponds to the position of the diaphragm plate (22), and the pump head plate (24) corresponds to the position of the diaphragm plate (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320873510.4U CN220081643U (en) | 2023-04-19 | 2023-04-19 | High-pressure high-flow hydraulic diaphragm metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320873510.4U CN220081643U (en) | 2023-04-19 | 2023-04-19 | High-pressure high-flow hydraulic diaphragm metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220081643U true CN220081643U (en) | 2023-11-24 |
Family
ID=88827377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320873510.4U Active CN220081643U (en) | 2023-04-19 | 2023-04-19 | High-pressure high-flow hydraulic diaphragm metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220081643U (en) |
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2023
- 2023-04-19 CN CN202320873510.4U patent/CN220081643U/en active Active
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