CN211448992U - Flow regulating mechanism of metering pump - Google Patents
Flow regulating mechanism of metering pump Download PDFInfo
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- CN211448992U CN211448992U CN201922114571.9U CN201922114571U CN211448992U CN 211448992 U CN211448992 U CN 211448992U CN 201922114571 U CN201922114571 U CN 201922114571U CN 211448992 U CN211448992 U CN 211448992U
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- plunger rod
- rod
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Abstract
The utility model discloses a flow regulating mechanism of a metering pump, which relates to the field of hydraulic pumps and comprises a plunger rod and a support frame, wherein the plunger rod is arranged on the support frame, the outer surface of the plunger rod is sleeved with a spring for generating pre-pressing force, one end of the plunger rod is provided with a crank block component for driving the plunger rod to move horizontally, the crank block component comprises a transmission component and a power component, one end of the plunger rod, which is far away from the crank block component, is provided with a guide rod with guiding effect, the guide rod is contacted with the plunger rod, one end of the guide rod, which is far away from the plunger rod, is fixedly connected with a diaphragm plate for pressing and extruding fluid medium through a connecting rod, the flow regulating mechanism also comprises a regulating component which is arranged on, and contact with guide arm and slider-crank subassembly respectively, the utility model provides an adjusting part is used for adjusting the stroke of diaphragm plate and adjusts the flow that liquid was impressed the extrusion promptly.
Description
Technical Field
The utility model relates to a hydraulic pump field, in particular to flow control mechanism of metering pump.
Background
The metering pump can automatically adjust the flow according to the pressure change (the size of an external load) of the system under the condition of constant rotating speed, namely the output flow is small when the pressure is high and the output flow is large when the pressure is low, so that the quantity of hydraulic elements can be saved, an oil circuit system is simplified, the oil heating can be reduced, but the metering pump in the prior society has large volume and a non-compact structure.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a flow control mechanism of metering pump that compact structure, area are little.
The utility model provides a technical scheme that its technical problem adopted is: a flow regulating mechanism of a metering pump comprises a plunger rod and a support frame, wherein the plunger rod is arranged on the support frame, a spring generating a pre-pressing force is sleeved on the outer surface of the plunger rod, a crank block component for driving the plunger rod to move horizontally is arranged at one end of the plunger rod, the crank block component comprises a transmission component and a power component, a guide rod with a guiding effect is arranged at one end of the plunger rod, which is far away from the crank block component, the guide rod is in contact with the plunger rod, a diaphragm plate for pressing and extruding fluid media is fixedly connected at one end of the guide rod, which is far away from the plunger rod, through a connecting rod, and a regulating component for regulating the flow of the metering pump is arranged on the support frame, is arranged between the guide rod and the crank block component and is respectively in contact with the guide rod and the crank, the compressed spring rebounds the plunger rod when the plunger rod has no external force, the guide rod is used for driving the diaphragm plate to horizontally move and play a guiding role, the power assembly is used for driving the transmission assembly to move left and right, and the transmission assembly is used for driving the plunger rod to move left and right so as to drive the diaphragm plate to move left and right.
Further, the method comprises the following steps: the adjusting assembly comprises a first cam horizontally arranged on the supporting frame, the first cam is arranged above the plunger rod, an adjusting rod is arranged above the first cam, an adjusting handle is arranged at one end, far away from the first cam, of the adjusting rod, the adjusting rod is fixedly connected with the first cam and the adjusting handle respectively, the adjusting handle is screwed manually, the adjusting handle rotates, the adjusting handle drives the adjusting rod to rotate so as to drive the first cam to rotate, and therefore the stroke of the diaphragm plate is changed, and the flow of liquid pressed and extruded by the metering pump is changed.
Further, the method comprises the following steps: the transmission assembly comprises a sliding block seat, a sliding block and a connecting block, the sliding block drives the sliding block seat to move horizontally, the connecting block is used for connecting the sliding block seat and a plunger rod, two ends of the connecting block are fixedly connected with the plunger rod and the sliding block seat respectively, the sliding block seat is arranged at one end, far away from a diaphragm plate, of the plunger rod, the sliding block is arranged inside the sliding block seat, the sliding block is in contact with the sliding block seat, the sliding block horizontally moves to drive the sliding block seat to move horizontally, the connecting block is driven to move horizontally, the plunger rod is driven to move horizontally, and.
Further, the method comprises the following steps: the slider seat is characterized in that a groove is formed in the horizontal direction in the slider seat, the slider is arranged in the groove, and two ends of the slider are respectively in contact with two ends of the groove in the horizontal direction.
Further, the method comprises the following steps: the power component comprises a worm and a worm wheel which are in fit transmission, the worm wheel is arranged on one side of the sliding block, one side of the worm wheel, which is close to the sliding block, is fixedly connected with a second cam, the second cam is fixedly connected with the sliding block, and the worm rotates to drive the worm wheel to rotate so as to drive the second cam to rotate and further drive the sliding block to move horizontally.
Further, the method comprises the following steps: the worm wheel and the worm are arranged perpendicular to each other.
The utility model has the advantages that: the utility model provides a flow that the stroke that adjusting part is used for adjusting the diaphragm plate was adjusted liquid promptly and is impressed the extrusion, power component is used for driving about the drive assembly, thereby drive about the plunger rod move about the drive diaphragm plate and then change the flow that the measuring pump impresses extrusion liquid.
Drawings
FIG. 1 is a schematic view of a flow regulating mechanism of a metering pump;
FIG. 2 is a schematic view of the connection of a second cam and a worm gear;
labeled as: 1. a plunger rod; 2. a support frame; 3. a spring; 5. a guide bar; 7. a diaphragm plate; 411. a slider seat; 412. a slider; 413. connecting blocks; 4111. a groove; 421. a worm; 422. a turbine; 423. a second cam.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
The flow regulating mechanism of the metering pump shown in fig. 1 comprises a plunger rod 1 and a support frame 2, wherein the plunger rod 1 is arranged on the support frame 2, a spring 3 for generating a pre-pressing force is sleeved on the outer surface of the plunger rod 1, a crank block assembly for driving the plunger rod 1 to horizontally move is arranged at one end of the plunger rod 1, the crank block assembly comprises a transmission assembly and a power assembly, a guide rod 5 for guiding is arranged at one end of the plunger rod 1, which is far away from the crank block assembly, the guide rod 5 is in contact with the plunger rod 1, a diaphragm plate 7 for pressing and extruding a fluid medium is fixedly connected at one end of the guide rod 5, which is far away from the plunger rod 1, through a connecting rod 6, the flow regulating mechanism further comprises a regulating assembly which is arranged on the support frame 2 and is positioned above the plunger rod 1 and used, the connecting rod 6 and the diaphragm plate 7 can be connected in a welding mode or fixedly connected through bolts, screws and the like, and in the embodiment, the connecting rod 6 is connected with the diaphragm plate 7 in a welding mode.
On the basis, the adjusting assembly comprises a first cam 81 horizontally arranged on the support frame 2, the first cam 81 is arranged above the plunger rod 1, an adjusting rod 82 is arranged above the first cam 81, an adjusting handle 83 is arranged at one end, far away from the first cam 81, of the adjusting rod 82, the adjusting rod 82 is fixedly connected with the first cam 81 and the adjusting handle 83 respectively, the adjusting handle 83 is screwed manually, the adjusting handle 83 rotates, the adjusting handle 83 drives the adjusting rod 82 to rotate so as to drive the first cam 81 to rotate, and therefore the stroke of the diaphragm plate 7 is changed, the flow rate of liquid pressed in and out is changed, the first cam 81 and the adjusting rod 82 can be in fastening connection or welding connection, and in the embodiment, fastening connection is selected.
On the basis, the transmission assembly comprises a slider seat 411, a slider 412 and a connecting block 413, wherein the slider 412 drives the slider seat 411 to move horizontally, the connecting block 413 is used for connecting the slider seat 411 and the plunger rod 1, two ends of the connecting block 413 are fixedly connected with the plunger rod 1 and the slider seat 411 respectively, the slider seat 411 is arranged at one end, far away from the diaphragm plate 7, of the plunger rod 1, the slider 412 is arranged inside the slider seat 411, the slider 412 is in contact with the slider seat 411, and the slider 412 moves horizontally to drive the slider seat 411 to move horizontally, so that the connecting block 413 is driven to move horizontally to drive the plunger rod 1 to move horizontally, and finally the diaphragm plate 7 is driven to move horizontally.
On the basis, the power assembly comprises a worm 421 and a worm wheel 422 which are in matched transmission, the worm wheel 422 is arranged on one side of the sliding block 412, a second cam 423 is fixedly connected to one side, close to the sliding block 412, of the worm wheel 422, the second cam 423 is fixedly connected with the sliding block 412, and the worm 421 rotates to drive the worm wheel 422 to rotate so as to drive the second cam 423 to rotate and further drive the sliding block 412 to move horizontally.
On the basis of the above, the worm wheel 422 and the worm 421 are arranged perpendicular to each other.
On the basis, the adjusting handle is manually screwed, and the adjusting handle 83 drives the adjusting rod 82 to rotate so as to drive the first cam 81 to rotate, so that the position of the guide rod 5 is changed, that is, the stroke of the diaphragm plate 7 is changed, and the flow rate of the metering pump pressed in and out is changed.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a flow control mechanism of metering pump, includes plunger rod (1) and support frame (2), plunger rod (1) sets up on support frame (2), its characterized in that: the outer surface of the plunger rod (1) is sleeved with a spring (3) for generating a pre-pressing force, one end of the plunger rod (1) is provided with a crank block component which drives the plunger rod (1) to move horizontally, the crank block component comprises a transmission component and a power component, one end of the plunger rod (1) far away from the crank block component is provided with a guide rod (5) with a guiding function, the guide rod (5) is contacted with the plunger rod (1), one end of the guide rod (5) far away from the plunger rod (1) is fixedly connected with a diaphragm plate (7) used for pressing and extruding fluid media through a connecting rod (6), and the device also comprises a regulating component which is arranged on the supporting frame (2) and positioned above the plunger rod (1) and used for regulating the flow of the metering pump, the adjusting component is arranged between the guide rod (5) and the crank block component and is respectively contacted with the guide rod (5) and the crank block component.
2. A flow regulating mechanism for a metering pump as recited in claim 1, wherein: the adjusting assembly comprises a first cam (81) horizontally arranged on the support frame (2), the first cam (81) is arranged above the plunger rod (1), an adjusting rod (82) is arranged above the first cam (81), one end, far away from the first cam (81), of the adjusting rod (82) is provided with an adjusting handle (83), and the adjusting rod (82) is fixedly connected with the first cam (81) and the adjusting handle (83) respectively.
3. A flow regulating mechanism for a metering pump as recited in claim 1, wherein: the transmission assembly comprises a slider seat (411), a slider (412) driving the slider seat (411) to move horizontally and a connecting block (413) used for connecting the slider seat (411) and a plunger rod (1), wherein two ends of the connecting block (413) are respectively fixedly connected with the plunger rod (1) and the slider seat (411), the slider seat (411) is arranged at one end, far away from a diaphragm plate (7), of the plunger rod (1), the slider (412) is arranged inside the slider seat (411), and the slider (412) is in contact with the slider seat (411).
4. A flow regulating mechanism for a metering pump as claimed in claim 3 wherein: the inside horizontal direction of slider seat (411) is provided with recess (4111), slider (412) set up in recess (4111), on the horizontal direction the both ends of slider (412) contact with the both ends of recess (4111) respectively.
5. A flow regulating mechanism for a metering pump as recited in claim 1, wherein: the power assembly comprises a worm (421) and a worm wheel (422) which are in matched transmission, the worm wheel (422) is arranged on one side of the sliding block (412), a second cam (423) is fixedly connected to one side, close to the sliding block (412), of the worm wheel (422), and the second cam (423) is fixedly connected with the sliding block (412).
6. The flow regulating mechanism of a metering pump of claim 5, wherein: the worm wheel (422) and the worm (421) are arranged perpendicular to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922114571.9U CN211448992U (en) | 2019-11-29 | 2019-11-29 | Flow regulating mechanism of metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922114571.9U CN211448992U (en) | 2019-11-29 | 2019-11-29 | Flow regulating mechanism of metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211448992U true CN211448992U (en) | 2020-09-08 |
Family
ID=72318124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922114571.9U Active CN211448992U (en) | 2019-11-29 | 2019-11-29 | Flow regulating mechanism of metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211448992U (en) |
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2019
- 2019-11-29 CN CN201922114571.9U patent/CN211448992U/en active Active
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