CN101705934A - Simplified hydraulic reciprocating diaphragm pump - Google Patents
Simplified hydraulic reciprocating diaphragm pump Download PDFInfo
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- CN101705934A CN101705934A CN200910154668A CN200910154668A CN101705934A CN 101705934 A CN101705934 A CN 101705934A CN 200910154668 A CN200910154668 A CN 200910154668A CN 200910154668 A CN200910154668 A CN 200910154668A CN 101705934 A CN101705934 A CN 101705934A
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Abstract
The invention relates to a reciprocating pump and aims to provide a simplified hydraulic reciprocating diaphragm pump. The pump comprises a hydraulic end and a power end; the hydraulic end comprises a cylinder body connected with a pump head, a diaphragm is arranged between the pump head and the cylinder body; the power end comprises a plunger, the back end of the plunger is connected with a crank shaft; the plunger is movably arranged in the plunger sleeve and slides back and forth inside the plunger sleeve, a sealing part is arranged between the plunger and the plunger sleeve so as to realize sealing, the front end of the plunger sleeve is connected with the cylinder body through an oil pipe and is communicated to the hydraulic oil side of the diaphragm; and a depressurization exhaust valve bank and a oil filling valve bank are separately connected through pipelines to form an independent oil pool and are separately communicated to the hydraulic oil side of the diaphragm through channels arranged in the cylinder body. The structure and external shape of the reciprocating diaphragm pump are simpler, the production difficulty and cost are reduced, an enormous amount of labor cost is saved, the working intensities of installation, maintenance and repair can be reduced, the efficiency is greatly increased, the cost is reduced, and the configuration method is flexible.
Description
Technical field
The present invention relates to a kind of reciprocating pump.More particularly, the present invention relates to a kind of hydraulic reciprocating diaphragm pump of designs simplification.
Background technique
In the present hydraulic reciprocating diaphragm pump (or claiming reciprocating diaphragm pump), generally will be positioned at diaphragm and be called fluid end afterwards and for diaphragm provides the static system of distortion tension force, comprise positions such as cylinder body, hydraulic fluid chamber, hydraulic oil inner loop pipeline or oil sump; To be called power end for fluid end provides the dynamical system of hydraulic pressure, comprise positions such as motor, cam, bent axle, plunger or plunger packing.But, the fluid end of common hydraulic reciprocating diaphragm pump and the layout of power end are lumped together, for example in Chinese invention patent " internal circulation pressure balance ultra high pressure hydralic diaphram type metering pump " (publication number CN1724868A), the fixed position of its plunger is the part of cylinder body directly just, and cylinder body is a part that constitutes oil cylinder integral body, and becomes the supporting element with the corresponding lamina membranacea of pump head.The variation of its function has determined the diversity and the irreqularity of this component shape of cylinder body, thereby has increased manufacture difficulty and cost greatly, and also the later maintenance to plunger and filler has brought a large amount of costs of labor, and does not possess substitutability.And in Chinese invention patent " high-pressure hydraulic diaphragm metering pump " (publication number CN1975163A), do not break away from the topology layout of this specific admixture yet.
In China utility model patent " a kind of split type hydraulic plunger diaphragm pump " (publication number CN200982285Y), though realized separating of plunger and pump head position, its plunger in fact still is to be placed among the cylinder body.If when sealing of its plunger etc. safeguarded, still will cylinder body be disassembled, thereby still has the problem that maintenance difficulties is big, cost is high.
When needs provided the fluid of high pressure, big flow, the plunger type high-pressure reciprocating pump was a common equipment, but it exists the shortcoming that leakage rate is big, plunger packing is easy to wear.During the Particulate Inclusion solid, then rate of fault is higher, can't adapt to arts demand in fluid.Though existing autoclave diaphragm plunger reciprocating pump can be finished the delivery requirements of impurity containing fluid; but the complex structure of its hydraulic pressure end is quite complicated; usually can comprise flushing oil pump, PF oil pump; also need be equipped with electrical equipments such as solenoid directional control valve, Pressure testing, PLC; cause machine volume huge; cost an arm and a leg, be difficult to popularize.
Summary of the invention
The technical problem to be solved in the present invention provides that a kind of structure more simplifies, and uses, installs more convenient hydraulic reciprocating diaphragm pump.
In order to address the above problem, the invention provides a kind of hydraulic reciprocating diaphragm pump of designs simplification, comprise fluid end and power end; Fluid end comprises the cylinder body that joins with pump head, establishes diaphragm between pump head and the cylinder body; Power end comprises plunger, and the rear end of plunger links to each other with bent axle; The plunger activity install in the plunger sleeve pipe and within it portion reciprocatingly slide, realize sealing by Sealing between plunger and the plunger sleeve pipe; The front end of plunger sleeve pipe is connected in cylinder body by oil pipe, and is communicated to the hydraulic oil side of diaphragm; Pressure release exhaust-valve group and Fill valve group are connected to an independently oil sump by pipeline respectively, and are located at channel connection in the cylinder body to the hydraulic oil side of diaphragm by interior respectively.
Among the present invention, the Sealing between described plunger and the plunger sleeve pipe is the stuffing box that is located on the plunger bushing inner tube wall.
Among the present invention, between described plunger sleeve pipe and the oil pipe, be connected by screw thread or flange between oil pipe and the cylinder body.
Among the present invention, the diameter dimension of described plunger is greater than the internal diameter size of oil pipe.
Among the present invention, described power end comprises at least two plungers, and the quantity of the fluid end parts that are connected with plunger sleeve pipe front end and the quantity of plunger are complementary.
Among the present invention, reciprocating pump comprises at least two oil pipes, and every oil pipe connects each self-corresponding cylinder body respectively.
Among the present invention, reciprocating pump comprises rear-mounted cuticula plate structure, and described rear-mounted cuticula plate structure is made up of back cuticula plate, spring and the cylinder body of band guide rod, has a guide rod through hole in the cylinder body; Back cuticula plate is positioned at the hydraulic oil side of diaphragm, and its guide rod is movably installed in the guide rod through hole, and the other end of guide rod is movably connected on the cylinder body; On the cylinder body at back cuticula plate place, be provided with the depression counterbore that is suitable for back cuticula plate shape and thickness, be provided with at least one connecting through hole in the depression counterbore.
Among the present invention, reciprocating pump comprises front-located mode cuticula plate structure, and described front-located mode cuticula plate structure is made up of preceding cuticula plate, spring and the pump head of band guide rod, has a guide rod through hole in the pump head; Preceding cuticula plate is positioned at the side medium of diaphragm, and its guide rod is movably installed in the guide rod through hole, and the other end of guide rod is movably connected on the pump head; On the pump head at preceding cuticula plate place, be provided with the depression counterbore of cuticula plate shape and thickness before being suitable for, be provided with at least one connecting through hole in the depression counterbore.
Among the present invention, the described pump head outside also is connected with pump head end cap or pump head combination brake switch and proporting.
Among the present invention, the pump head of reciprocating pump connects a pump head combination brake switch and proporting; This pump head combination brake switch and proporting comprises valve body, and valve body is provided with import and the outlet that is used to connect medium; Be sequentially with feed liquor valve guide holder, stack valve seat and liquid discharging valve guide holder in the valve body successively, feed liquor valve guide holder is fixedlyed connected respectively with the liquid discharging valve guide holder with stack valve seat, stack valve seat;
There is a center hole that runs through at the center of described stack valve seat, the nonpenerative feed pathway that the ring that makes a circle in the week of center hole is established the axis parallel of several and center hole, and feed pathway is passed the wall of stack valve seat and is communicated with the inlet of valve body;
The sheathed feed liquor spool in the center of described feed liquor valve guide holder; The valve plate of feed liquor spool connects a shank, and shank is provided with the feed liquor valve spring; End ring at feed liquor valve guide holder is established the through hole that several run through, and this through hole that runs through communicates with the side medium of diaphragm by the connecting through hole of being located on the pump head;
The sheathed discharge opeing spool in the center of described liquid discharging valve guide holder, the valve plate of discharge opeing spool connects a shank, and shank is established the liquid discharging valve spring; Establishing some through holes on the wall of liquid discharging valve guide holder is communicated with the outlet of valve body;
The valve plate of described feed liquor spool fits in feed pathway end and the realization sealing on every side of stack valve seat center hole under the effect of feed liquor valve spring; The valve plate of described discharge opeing spool fits in the end edge of stack valve seat center hole and realizes sealing under the liquid discharging valve spring action.
Compared with prior art, the invention has the beneficial effects as follows:
1, part of cylinder block shape of the present invention is compared with cylinder body of the prior art, and its structure and external shape are more simple, thereby greatly reduces manufacture difficulty and manufacture cost.
2, pressure release exhaust-valve group, Fill valve group and independently oil sump, formed a fully independently hydraulic oil circulating system, the function of pressure release in the time of can realizing superpressure fully, long-play final vacuum, repairing when oil pressure is not enough, and be during equipment operation, to finish automatically, need not that other configuration rates is high, hydraulic oil such as complex structure, PLC that maintenance difficulties is big, hydraulic-pressure pump keeps system, greatly reduces manufacturing cost and use cost.
3, because fluid end no longer includes movable part, therefore easily the loss parts are basic just only relates to power end.Because abandoned the cylinder structure of full encirclement formula in the past, when plunger and filler are carried out later maintenance, no longer need to dismantle oil cylinder, only need take oil pipe apart and the plunger sleeve pipe gets final product.This greatly reduces maintenance difficulty, has saved a large amount of costs of labor.
4, because the plunger sleeve pipe is to be connected by screw thread or flange with oil pipe, oil pipe with cylinder body, thereby thereby possess sizable technological flexibility. for example can select to optimize field apparatus and lay condition the bending direction of oil pipe, perhaps in case of emergency, use standby power end or fluid end to replace the part of fault at any time, significantly reducing because of the overhaul of the equipments puzzlement that production brings to the explained hereafter continuity. this point, any in the past reciprocating pump all can't be realized.
5, hydraulic reciprocating diaphragm pump of the present invention also has configuration mode flexibly.For example, connect the mode of bent axles, can realize that a plurality of pump heads work simultaneously by a plurality of plungers; Also can be by a plunger output multipath hydraulic to a plurality of pump heads.By increasing the rotating speed of motor controller, can adjust motor running condition according to operating mode at any time.
6, plunger diameter size of the present invention can realize obtaining bigger liquid pressure on the diaphragm hydraulic oil side unit area by the little displacement amount of plunger greater than the pipe aperture size.
7, pump head combination brake switch and proporting provided by the invention is simple in structure, safe and reliable, easy to maintenance, Economy is strong, replace import one-way valve and the outlet one-way valve that other similar pumps are arranged at the pump head upper and lower end respectively with this pump head combination brake switch and proporting, can alleviate installation, maintenance, repair work intensity, greatly raise the efficiency, reduce cost.
Description of drawings
Fig. 1 is the cross-sectional view of hydraulic reciprocating diaphragm pump among the present invention;
Fig. 2 is the cross-sectional view of the cylinder body and the pump head of fluid end among Fig. 1;
Fig. 3 is the longitudinal profile structural representation (discharge opeing state) of pump head combination brake switch and proporting among Fig. 2;
Fig. 4 is another working state schematic representation (feed liquor state) of pump head combination brake switch and proporting among Fig. 2;
Fig. 5 is the longitudinal profile structural representation of liquid discharging valve guide holder among Fig. 3;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is the longitudinal profile structural representation of stack valve seat among Fig. 3;
Fig. 8 is the left view of Fig. 7;
Fig. 9 is the longitudinal profile structural representation of feed liquor valve guide holder among Fig. 3;
Figure 10 is the left view of Fig. 9.
Figure 11 is the longitudinal profile structural representation that has assembled the function of diaphragm breakage alarm member between cylinder body and pump head.
Figure 12 is the truncation surface schematic representation that is the guide ring of " mountain " font among Figure 11.
Embodiment
With reference to the accompanying drawings, describe the present invention below.
In the present embodiment, hydraulic reciprocating diaphragm pump comprises fluid end and power end.Fluid end comprises cylinder body 2, hydraulic fluid chamber, hydraulic oil inner loop pipeline and the oil sump 10 that joins with pump head 1, establishes diaphragm 3 between pump head 1 and the cylinder body 2; Power end comprises motor, cam, bent axle, plunger 4 and stuffing box, and the rear end of plunger 4 links to each other with bent axle; Plunger 4 activities are installed in plunger sleeve pipe 5, and portion reciprocatingly slides within it, realize sealing by Sealing 6 between plunger 4 and the plunger sleeve pipe 5, and the sealing part is the stuffing box that is located on plunger sleeve pipe 5 inwalls.The front end of plunger sleeve pipe 5 is connected in cylinder body 2 by oil pipe 7, between plunger sleeve pipe 5 and the oil pipe 7, be connected by flange between oil pipe 7 and the cylinder body 2, certainly, also can select thread connecting mode; The diameter dimension of plunger 4 is greater than the internal diameter size of oil pipe 7.
Pressure release exhaust-valve group 8 connects independently oil sump 10 of cylinder body 2 and by pipeline, Fill valve group 9 connects cylinder body 2 and oil sump 10 (see figure 1)s by pipeline. pressure release exhaust-valve group 8, Fill valve group 9 is located at channel connection in the cylinder body to the hydraulic oil side of diaphragm by interior respectively, the two groups of valves of pressure release exhaust that its concrete structure is disclosed in Chinese invention patent (publication number CN1724868A) " internal circulation pressure balance ultra high pressure hydralic diaphram type metering pump " referring to this case application inventor and the organization plan of Fill valve assembly. pressure release exhaust-valve group 8, Fill valve group 9 and oil sump 10 independently, formed a fully independently hydraulic oil circulating system, pressure release in the time of can realizing superpressure fully, the long-play final vacuum, the function of repairing when oil pressure is not enough, and be during equipment operation, to finish automatically, it is high to need not other configuration rates, complex structure, the PLC that maintenance difficulties is big, hydraulic oil such as hydraulic-pressure pump are kept system, greatly reduce manufacturing cost and use cost.
This reciprocating pump comprises front-located mode cuticula plate structure, and front-located mode cuticula plate structure is made up of preceding cuticula plate 11, spring and the pump head 1 of band guide rod 12, has a guide rod through hole 13 in the pump head 1; Preceding cuticula plate 11 is positioned at the side medium of diaphragm 3, and its guide rod 12 is movably installed in the guide rod through hole 13, and the other end of guide rod 12 is movably connected on the pump head 1; On the pump head 1 at preceding cuticula plate 11 places, be provided with the depression counterbore 14 of cuticula plate 1 shape and thickness before being suitable for, be provided with two connecting through hole 15 (see figure 2)s in the depression counterbore 14.
The other end of the guide rod 12 of cuticula plate 11 is movably connected on the pump head 1 before among the present invention, with respect to being movably connected on mode on the end cap of pump head by spring among " high-pressure hydraulic diaphragm metering pump " (publication number CN1975163A), this is a kind of brand-new improvement.Improved starting point is: in the application scheme formerly, medium channel between pump head end cap and pump head main body, for avoiding guide rod blocking medium passage, need be in its side to wearing at least one group of aperture.But when having particulate matter or impurity in the medium of carrying, such scheme is easy to cause medium channel to stop up.Therefore, the tail end ways of connecting of guide rod 12 has more flexibility among the present invention: can use old-fashioned pump head end cap, utilize the medium channel fed sheet of a media between end cap and the pump head, also can utilize a kind of newly-designed pump head combination brake switch and proporting of mentioning later of the present invention, to substitute two one-way valves on the pipeline of normally used pump head gateway.
This reciprocating pump also comprises rear-mounted cuticula plate structure, and described rear-mounted cuticula plate structure is made up of back cuticula plate, spring and the cylinder body of band guide rod, has a guide rod through hole in the cylinder body; Back cuticula plate is positioned at the hydraulic oil side of diaphragm, and its guide rod is movably installed in the guide rod through hole, and the other end of guide rod is movably connected on the cylinder body; On the cylinder body at back cuticula plate place, be provided with the depression counterbore that is suitable for back cuticula plate shape and thickness, be provided with at least one connecting through hole (see figure 2) in the depression counterbore.
In the present embodiment, the pump head 1 of reciprocating pump connects a pump head combination brake switch and proporting; This pump head combination brake switch and proporting comprises valve body 16, comprise valve body 16, valve body 16 is provided with import 17 and the outlet 18 that is used to connect medium, be sequentially with feed liquor valve guide holder 19, stack valve seat 20 and liquid discharging valve guide holder 21 in the valve body 16 successively, feed liquor valve guide holder 19 achieves a fixed connection by socket head screw 22,23 respectively with liquid discharging valve guide holder 21 with stack valve seat 20, stack valve seat 20.Encircle respectively on the outer side surface at the outer side surface of feed liquor valve guide holder 19 and liquid discharging valve guide holder 21 two ends and establish groove, built-in Sealing in the groove forms sealing respectively between feed liquor valve guide holder 19 and valve body 16, liquid discharging valve guide holder 21 and valve body 16; Sealing is made up of O type circle 24 and back-up ring 25 respectively.
Feed liquor valve guide holder 19 with stack valve seat 20 corresponding ends be hollow, its center is provided with limit casing 26, limit casing 26 has the center hole that runs through; Feed liquor spool 27 has the valve plate of annular, and valve plate connects the tubular handle of hollow, and its shank places in the limit casing 26, is provided with feed liquor valve spring 28 in the shank; In the end of feed liquor valve guide holder 19, establish the through hole that runs through of the axis parallel of several and center hole along the ring that makes a circle in week of limit casing 26;
There is a center hole that runs through at the center of stack valve seat 20, the nonpenerative feed pathway 29 that the ring that makes a circle in the week of center hole is established the axis parallel of several and center hole, and feed pathway 29 is passed the wall of stack valve seat 20 and is communicated with the inlet of valve body 16;
Liquid discharging valve guide holder 21 is a hollow with stack valve seat 20 corresponding ends, and its center is provided with limit casing 30; Discharge opeing spool 31 has valve plate, and the center of valve plate connects the shank of hollow, and its shank places in the limit casing 30, establishes liquid discharging valve spring 32 in the shank; Establish some through holes 33 on the wall of liquid discharging valve guide holder 1 and connect the outside of limit casing 30 and the outlet of valve body;
The surface of the annular valve plate of feed liquor spool 27 fits in the end of stack valve seat 20 center holes feed pathway 29 on every side and realizes sealing under 28 effects of feed liquor valve spring; The surface of the valve plate of discharge opeing spool 31 fits in the end edge of stack valve seat 20 center holes and realizes sealing under 32 effects of liquid discharging valve spring. and the valve plate of discharge opeing spool 31 has circular-arc outer surface curve, to strengthen applying effect, lift-off seal performance.
The running that pump head combination brake switch and proporting among the present invention is used for reciprocating pump is described as follows:
One end in feed liquor valve guide holder 19 outsides of this pump head combination brake switch and proporting is connected in pump head 1 by connecting head or flange, and the outlet 18 of valve body 16 and inlet 17 are connected the outlet 34 and the inlet 35 of the process pipelines of fed sheet of a media respectively.
Be full of medium in the pump head combination brake switch and proporting after, start diaphragm pump, the pulsation of diaphragm 3 gives feed liquor spool 27, discharge opeing spool 31 with Driving force and tractive force by through hole and center hole that medium runs through on feed liquor valve guide holder 19.
When diaphragm 3 drives media towards away from 19 motions of feed liquor valve guide holder the time: the valve plate of discharge opeing spool 31 fits in the end edge of stack valve seat 20 center holes and realizes sealing under the effect of liquid discharging valve spring 32; Meanwhile, originally seal the both sides formation pressure reduction of annular valve plate of feed liquor spool 27 of the feed pathway 29 of feed liquor valve guide holder 19 inner chambers and stack valve seat 20, feed liquor valve spring 28 is compressed, and the medium at valve body 16 inlets 17 places is entered the center hole (see figure 4) of stack valve seat 20 by the feed pathway 29 of stack valve seat 20.
When fluid end drove medium towards 19 motions of feed liquor valve guide holder: the surface of the annular valve plate of feed liquor spool 31 fitted in stack valve seat 20 center holes feed pathway end on every side and also realizes sealing under 32 effects of feed liquor valve spring; Meanwhile, originally seal the both sides formation pressure reduction of valve plate of the discharge opeing spool 31 of liquid discharging valve guide holder 21 inner chambers and stack valve seat 20 center holes, liquid discharging valve spring 32 is compressed, and the medium in stack valve seat 20 center holes is delivered to outlet 18 place's (see figure 3)s of valve body 16 by through hole 33 on the wall of liquid discharging valve guide holder 1.
In another embodiment of the present invention, diaphragm 3 is made up of two individual layer diaphragms that stack 36,37; Between two individual layer diaphragms 36,37, the guide ring 38 of an annular is set, the truncation surface of guide ring 38 is " mountain " font (seeing Figure 12), and the outstanding position in the middle of it is stretched between two individual layer diaphragms 36,37, and the outstanding position on both sides surrounds the outer rim of two individual layer diaphragms 36,37; Guide ring 38 is connected with a pressure transducer 39, and pressure transducer 39 is connected to warning device (seeing Figure 11) by signaling line.
In a new embodiment of the present invention, power end can be to comprise at least two plungers, be that a plurality of plungers pass through separately independently bent axle, cam connection motor rotation axis, and the number of components of the fluid end that is connected with plunger sleeve pipe front end and the quantity of plunger are complementary.In this way, can realize driving a plurality of pump head operations, to satisfy the different process demand by a motor synchronous.
In another new embodiment of the present invention, reciprocating pump can be to comprise at least two oil pipes, be that a plurality of oil pipes are connected to a plunger, every oil pipe connects each self-corresponding cylinder body respectively, provides a plurality of pump heads operations required hydraulic power by the to-and-fro motion of a plunger.At this moment, the motor of power end can be connected to a rotational speed governor, can regulate the motor motion speed when stopping using certain pump head, avoids causing fault too greatly because of the increase of fluid end pressure causes the diaphragm working conditions change.
At last, it is also to be noted that what more than enumerate only is specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (10)
1. the hydraulic reciprocating diaphragm pump of a designs simplification comprises fluid end and power end; Fluid end comprises the cylinder body that joins with pump head, establishes diaphragm between pump head and the cylinder body; Power end comprises plunger, and the rear end of plunger links to each other with bent axle; The plunger activity install in the plunger sleeve pipe and within it portion reciprocatingly slide, realize sealing by Sealing between plunger and the plunger sleeve pipe, it is characterized in that the front end of plunger sleeve pipe is connected in cylinder body by oil pipe, and be communicated to the hydraulic oil side of diaphragm; Pressure release exhaust-valve group and Fill valve group are connected to an independently oil sump by pipeline respectively, and are located at channel connection in the cylinder body to the hydraulic oil side of diaphragm by interior respectively.
2. hydraulic reciprocating diaphragm pump according to claim 1 is characterized in that, the Sealing between described plunger and the plunger sleeve pipe is the stuffing box that is located on the plunger bushing inner tube wall.
3. hydraulic reciprocating diaphragm pump according to claim 1 is characterized in that, between described plunger sleeve pipe and the oil pipe, be connected by screw thread or flange between oil pipe and the cylinder body.
4. hydraulic reciprocating diaphragm pump according to claim 1 is characterized in that the diameter dimension of described plunger is greater than the internal diameter size of oil pipe.
5. according to described any one hydraulic reciprocating diaphragm pump of claim 1 to 4, it is characterized in that described power end comprises at least two plungers, the quantity of the fluid end parts that are connected with plunger sleeve pipe front end and the quantity of plunger are complementary.
6. according to described any one hydraulic reciprocating diaphragm pump of claim 1 to 4, it is characterized in that this reciprocating pump comprises at least two oil pipes, every oil pipe connects each self-corresponding cylinder body respectively.
7. according to described any one hydraulic reciprocating diaphragm pump of claim 1 to 4, it is characterized in that, this reciprocating pump comprises rear-mounted cuticula plate structure, and described rear-mounted cuticula plate structure is made up of back cuticula plate, spring and the cylinder body of band guide rod, has a guide rod through hole in the cylinder body; Back cuticula plate is positioned at the hydraulic oil side of diaphragm, and its guide rod is movably installed in the guide rod through hole, and the other end of guide rod is movably connected on the cylinder body; On the cylinder body at back cuticula plate place, be provided with the depression counterbore that is suitable for back cuticula plate shape and thickness, be provided with at least one connecting through hole in the depression counterbore.
8. according to described any one hydraulic reciprocating diaphragm pump of claim 1 to 4, it is characterized in that, this reciprocating pump comprises front-located mode cuticula plate structure, and described front-located mode cuticula plate structure is made up of preceding cuticula plate, spring and the pump head of band guide rod, has a guide rod through hole in the pump head; Preceding cuticula plate is positioned at the side medium of diaphragm, and its guide rod is movably installed in the guide rod through hole, and the other end of guide rod is movably connected on the pump head; On the pump head at preceding cuticula plate place, be provided with the depression counterbore of cuticula plate shape and thickness before being suitable for, be provided with at least one connecting through hole in the depression counterbore.
9. hydraulic reciprocating diaphragm pump according to claim 8 is characterized in that, the described pump head outside also is connected with pump head end cap or pump head combination brake switch and proporting.
10. according to any one hydraulic reciprocating diaphragm pump described in the claim 1,2,3,4 or 9, it is characterized in that the pump head of this reciprocating pump connects a pump head combination brake switch and proporting; This pump head combination brake switch and proporting comprises valve body, and valve body is provided with import and the outlet that is used to connect medium; Be sequentially with feed liquor valve guide holder, stack valve seat and liquid discharging valve guide holder in the valve body successively, feed liquor valve guide holder is fixedlyed connected respectively with the liquid discharging valve guide holder with stack valve seat, stack valve seat;
There is a center hole that runs through at the center of described stack valve seat, the nonpenerative feed pathway that the ring that makes a circle in the week of center hole is established the axis parallel of several and center hole, and feed pathway is passed the wall of stack valve seat and is communicated with the inlet of valve body;
The sheathed feed liquor spool in the center of described feed liquor valve guide holder; The valve plate of feed liquor spool connects a shank, and shank is provided with the feed liquor valve spring; End ring at feed liquor valve guide holder is established the through hole that several run through, and this through hole that runs through communicates with the side medium of diaphragm by the connecting through hole of being located on the pump head;
The sheathed discharge opeing spool in the center of described liquid discharging valve guide holder, the valve plate of discharge opeing spool connects a shank, and shank is established the liquid discharging valve spring; Establishing some through holes on the wall of liquid discharging valve guide holder is communicated with the outlet of valve body;
The valve plate of described feed liquor spool fits in feed pathway end and the realization sealing on every side of stack valve seat center hole under the effect of feed liquor valve spring; The valve plate of described discharge opeing spool fits in the end edge of stack valve seat center hole and realizes sealing under the liquid discharging valve spring action.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101546680A CN101705934B (en) | 2009-11-23 | 2009-11-23 | Simplified hydraulic reciprocating diaphragm pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101546680A CN101705934B (en) | 2009-11-23 | 2009-11-23 | Simplified hydraulic reciprocating diaphragm pump |
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| CN101705934A true CN101705934A (en) | 2010-05-12 |
| CN101705934B CN101705934B (en) | 2012-03-07 |
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| CN102380765A (en) * | 2011-11-09 | 2012-03-21 | 中国二冶集团有限公司 | Method for synchronous embedded mounting of hydraulic end and power end of piston diaphragm pump |
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| JP2017214933A (en) * | 2012-04-20 | 2017-12-07 | ホワイト ナイト フルイド ハンドリング インコーポレーテッドＷｈｉｔｅ Ｋｎｉｇｈｔ Ｆｌｕｉｄ Ｈａｎｄｌｉｎｇ Ｉｎｃ． | Fluid pump and method of manufacturing the same |
| CN110131231A (en) * | 2019-06-19 | 2019-08-16 | 重庆水泵厂有限责任公司 | The multi-functional Fill valve of diaphragm pump |
| CN111536028A (en) * | 2020-04-15 | 2020-08-14 | 陕西航天动力高科技股份有限公司 | Exhaust oil supplementing valve for diaphragm pump |
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