CN109611305A - A kind of booster water pump - Google Patents
A kind of booster water pump Download PDFInfo
- Publication number
- CN109611305A CN109611305A CN201811460961.5A CN201811460961A CN109611305A CN 109611305 A CN109611305 A CN 109611305A CN 201811460961 A CN201811460961 A CN 201811460961A CN 109611305 A CN109611305 A CN 109611305A
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- valve core
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000012530 fluid Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 13
- 238000001727 in vivo Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 22
- 238000010586 diagram Methods 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000012864 cross contamination Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
- F04B9/111—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/002—Hydraulic systems to change the pump delivery
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses including the pump case with axial channel, the P hydraulic fluid port and T hydraulic fluid port being connected to axial channel are provided on pump case side wall；Left cylinder with left big plunger cavity and left small plunger chamber, and the right cylinder body with right big plunger cavity and right small plunger chamber；With axial passage and piston in T shape, be set in pump case and can left and right slide；Big valve core and small valve core, the diameter of big valve core are greater than the diameter of valve port, and big valve core is located on the left of the second annular internal shoulder and is slidably connected in the axial passage of piston；The left end of the axial passage of the piston is equipped with left big plunger, and the right end of the axial passage of the piston is equipped with right big plunger；Left small plunger is installed on the left side of the piston, right small plunger is installed on the right side of the piston；Left Variable Control valve module and right Variable Control valve module are installed in the left cylinder；The booster water pump is not only simple in structure, and can be realized change pressure ratio.
Description
Technical field
The present invention relates to water pump technology, in particular to a kind of booster water pumps.
Background technique
The important high-pressure water that booster water pump is widely used for the fields such as Water Cutting, high-pressure wash provides element, existing
Booster water pump be typically all fixed pressure ratio, and the different pressurization of usual demand in different operating conditions in practical applications
Than, such as in the mesolow stage, water outlet pressure is not high at this time, and demand volume is larger, it is only necessary to which lesser pressure ratio can
To reach demand pressure；And in high pressure phase, water outlet pressure is higher at this time, and needs water outlet flow smaller, needs larger
Pressure ratio can be only achieved the pressure of demand.It is mostly using the water pump of big pressure ratio and one small at present in application
The water pump of pressure ratio is used cooperatively, and causes complicated control, installed power height, use cost high.
Summary of the invention
(1) technical problems to be solved
The defect aimed to overcome that in the prior art of the invention patent provides a kind of volume compact, at low cost, pressurization
Than variable booster water pump.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of booster water pump, including with axial channel
Pump case is provided with the P hydraulic fluid port and T hydraulic fluid port being connected to axial channel on pump case side wall, has in the middle part of the inner hole wall of pump case first annular
Internal shoulder, P hydraulic fluid port and T hydraulic fluid port are located at the left and right sides of first annular internal shoulder；
Left cylinder with left big plunger cavity and left small plunger chamber, and the right side with right big plunger cavity and right small plunger chamber
Cylinder body, the left cylinder and right cylinder body are connected to the left and right ends of pump case axial channel；Left inlet opening is provided on left cylinder
And left apopore be connected to left big plunger cavity, right inlet opening is provided on right cylinder body and is gone out with the right side that plunger cavity is connected to right greatly
Water hole；
Wherein, left cylinder is equipped with the first from left valve opening being connected to left big plunger cavity, and the left side being connected to left small plunger chamber
Two valve openings, the first from left valve opening and the second from left valve opening are connected to left inlet opening；Being equipped in the first from left valve opening only allows water from a left side
Inlet opening enters the intracavitary the first from left inlet valve of left big plunger, and being equipped in the second from left valve opening only allows water to enter a left side from left inlet opening
The intracavitary the second from left inlet valve of small plunger；The left cylinder is equipped with three valve opening of a left side being connected to left small plunger chamber, left three valve
Hole is connected to left apopore；The first from left drain valve for allowing water to be discharged from left big plunger cavity is equipped with only in the left apopore, it is described
The second from left drain valve for only water being allowed to be discharged from left small plunger chamber is equipped in left three valve openings；Right cylinder body is equipped with to be connected with right big plunger cavity
Logical one valve opening of the right side, and two valve opening of the right side being connected to right small plunger chamber, a right valve opening and right two valve openings with right water inlet
Hole connection；Being equipped in a right valve opening only allows water to enter intracavitary one inlet valve of the right side of right big plunger from right inlet opening, described
Being equipped in right two valve openings only allows water to enter intracavitary two inlet valve of the right side of right small plunger from right inlet opening；The right cylinder body is equipped with
Three valve opening of the right side being connected to right small plunger chamber, right three valve opening are connected to right apopore；It is equipped in the right apopore and only permits
One drain valve of the right side that Xu Shui is discharged from right big plunger cavity, interior be equipped with of right three valve opening only allow water to be discharged from right small plunger chamber
Right two drain valves；
With axial passage and piston in T shape, be set in pump case and can left and right slide, the thin axle portion and first of piston
The internal perisporium of annular internal shoulder seals cooperation, and the first sealing ring is equipped between the big axle portion periphery of piston and the inner hole wall of pump case,
Left piston chamber is formed between the left side and first annular internal shoulder of the big axle portion of piston, the right side of the big axle portion of piston forms right work
Chamber is filled in, the left side of the thin axle portion of piston forms oil back chamber, and P hydraulic fluid port is connected to left piston chamber, and T hydraulic fluid port is connected to oil back chamber, piston
Axial channel internal perisporium be equipped with the second annular internal shoulder, the second annular internal shoulder surrounds valve port, opens in the thin axle portion of piston
There are the first through flow hole, the second through flow hole and a third through flow hole, the first through flow hole is to the axis that is connected on the right side of the second annular internal shoulder
To channel and left piston chamber, the second through flow hole is to the axial passage and oil back chamber that are connected on the left of the second annular internal shoulder, third
The input end of through flow hole is located in valve port, and there are three the outlet ends of third through flow hole, one of them is to connect always with right piston chamber
Logical first exit end, another is second outlet end whether selection is connected to oil back chamber or left piston chamber, and third is always
The third outlet end being connected to the axial passage of the second annular internal shoulder left end；
Big valve core and small valve core, the diameter of big valve core are greater than the diameter of valve port, and it is left that big valve core is located at the second annular internal shoulder
Side is simultaneously slidably connected in the axial passage of piston, small whether the left and right sliding of big valve core can determine to open the left port of valve port
Spool is in T shape, and the enlarged head of small valve core is located on the right side of the second annular internal shoulder, and the thin axle portion of small valve core is after valve port and big
Spool is threadedly coupled, whether the left and right sliding of the enlarged head of small valve core can determine to open the right output port of valve port；
The left end of the axial passage of the piston, which is equipped with, is slidably connected at the intracavitary big plunger in a left side of left big plunger, the work
The right end of the axial passage of plug, which is equipped with, is slidably connected at the intracavitary big plunger in the right side of right big plunger；Pacify on the left side of the piston
Equipped with the intracavitary left small plunger of left small plunger is slidably connected at, it is equipped on the right side of the piston and is slidably connected at right pillar
Fill in intracavitary right small plunger；
Left Variable Control valve module for controlling flow and pressure in left apopore is installed in the left cylinder, it is described
Right Variable Control valve module for controlling flow and pressure in left apopore is installed in right cylinder body.
Through the above technical solutions, P hydraulic fluid port is connected with hydraulic oil high pressure oil port, T hydraulic fluid port and liquid when the booster water pump works
Pressure oil fuel tank is connected directly, and is located at a piston left side by controlling the bilateral reciprocation to P hydraulic fluid port oil-feeding control piston, and then driving
The big plunger in a left side at end and left small plunger respectively in left big plunger cavity and the intracavitary reciprocating motion of left small plunger, by the first from left inlet valve,
The cooperation of the first from left drain valve, the second from left inlet valve, the second from left drain valve realizes that water enters left big plunger cavity and Zuo little Zhu from left inlet opening
Fill in it is intracavitary, then from left apopore high pressure be discharged；The big plunger in the right side and right small plunger point for being located at piston right end are driven at the same time
Not in right big plunger cavity and the intracavitary reciprocating motion of right small plunger, pass through a right inlet valve, a right drain valve, right two inlet valves, the right side
The cooperation of two drain valves realizes that water enters right big plunger cavity from right inlet opening and right small plunger is intracavitary, then from right apopore high pressure
Discharge；When the pressure of left apopore reaches predetermined pressure, left variable control valve component operation realizes unloading for left big plunger cavity
Lotus, the left big intracavitary water flow of plunger will not be discharged from left apopore；With should the pressure of right apopore reach predetermined pressure when, it is right
Variable control valve component operation, realizes the off-load of right big plunger cavity, and the right big intracavitary water flow of plunger will not be discharged from right apopore；
The discharge capacity of booster water pump reduces, and the water pressure of corresponding left apopore and right apopore increases.
Wherein the reciprocating motion control of piston is completed by big valve core and small valve core, and the diameter of big valve core is greater than valve port
Diameter, the thin axle portion of small valve core is threadedly coupled after passing through valve port with big valve core, and the left and right of the enlarged head of small valve core slides and can determine
Surely whether opening the right output port of valve port, whether the left and right sliding of big valve core can determine to open the left port of valve port.
When small valve core opens the right output port of valve port, oil liquid can enter after P hydraulic fluid port, the first through flow hole, third through flow hole
Right piston chamber, the oil liquid of right piston chamber act on the annulus area formed by piston and right plunger (this annulus area be greater than live
The annulus area that the convex shoulder part of plug is formed), piston moves downward under difference in areas, leads to when piston moves to third from right to left
The second outlet end of discharge orifice is communicated with oil back chamber, second outlet end and oil return of the left end chamber of big valve core by third through flow hole
Mouth communicates, and small valve core moves downward the right output port of close port, and big valve core opens the left port of valve port, and such right piston chamber passes through
It being communicated after the left port of valve port and the second through flow hole with oil back chamber, and then flows to T hydraulic fluid port, such piston starts to move right, when
When the second outlet end that piston moves right third through flow hole is communicated with left piston chamber, big valve core and small valve core are in difference in areas
(diameter that the diameter of big valve core is greater than valve port) moves right together under effect, and big valve core is re-closing off the left port of valve port, small
Spool reopens the right output port of valve port, and such piston starts to move downward, and forms circulation.
In further technical solution, the left Variable Control valve module includes including left control valve core, left spring, left pressure
Power sensitivity plunger；The first from left threaded hole being connected to left inlet opening, the left side are axially arranged with along the first from left valve opening in the left cylinder
The bottom of one threaded hole is axially arranged with left four valve openings along it, forms the first from left step between the first from left threaded hole and left four valve openings；
The bottom of left four valve opening is axially arranged with left five valve openings along it；The first from left through flow hole is equipped in the left cylinder and the second from left is through-flow
Hole, one end of the first from left through flow hole is connected to the bottom of left five valve openings, the other end is connected to left three valve openings；Described the second from left is through-flow
Hole one end is connected to left four valve openings, the other end is connected to the first from left valve opening；
The left control valve core is slidably connected in left four valve openings, is being located in the first from left threaded hole in the left control valve core
One end be equipped with left shoulder, left annular flow is being equipped at the second from left through flow hole on the circumference side of the left control valve core
Slot, the left shoulder and the first from left step cooperate the on-off for controlling the first from left threaded hole and left four valve openings, the left presser sensor
Plunger is slidably connected in left five valve openings, and the diameter of the left presser sensor plunger is less than the diameter of left control valve core；The left side
The opening of one threaded hole is equipped with the first from left screw plug, and the left spring is between the first from left screw plug and left control valve core for forcing
The left shoulder is pressed on the first from left step.
Through the above technical solutions, the pressure of left apopore passes through left three valve openings, a left side when left variable control valve component operation
One through flow hole, left five valve openings act on left presser sensor plunger and left control valve core are pushed to overcome the active force of left spring to the first from left
The movement of screw plug direction, drives left shoulder to leave the first from left step, so that the corresponding left big intracavitary water of plunger passes through the first from left valve opening, a left side
Two through flow holes, left four valve openings, left annular flow slot, the first from left threaded hole flow back in left inlet opening；Left big plunger corresponding in this way
Movement would not export water flow, and the discharge capacity of entire booster water pump reduces, to realize the variable of booster water pump.
In further technical solution, the right Variable Control valve module includes including right control valve core, right spring, right pressure
Power sensitivity plunger；One threaded hole of the right side being connected to right inlet opening, the right side are axially arranged with along a right valve opening in the right cylinder body
The bottom of one threaded hole is axially arranged with right four valve openings along it, and a right step is formed between a right threaded hole and right four valve openings；
The bottom of right four valve opening is axially arranged with right five valve openings along it；It is equipped with a right through flow hole in the right cylinder body and the right side two is through-flow
Hole, one end of a right through flow hole is connected to the bottom of right five valve openings, the other end is connected to right three valve openings；Described right two is through-flow
Hole one end is connected to right four valve openings, the other end is connected to a right valve opening；
The right control valve core is slidably connected in right four valve openings, is being located in a right threaded hole in the right control valve core
One end be equipped with right shoulder, be equipped with right annular flow at right two through flow holes on the circumference side of the right control valve core
Slot, the right shoulder and right step cooperation are for controlling the on-off of a right threaded hole and right four valve openings, the right presser sensor
Plunger is slidably connected in right five valve openings, and the diameter of the right presser sensor plunger is less than the diameter of right control valve core；The right side
The opening of one threaded hole is equipped with a right screw plug, and the right spring is located between a right screw plug and right control valve core for forcing
The right shoulder is pressed on a right step.
Through the above technical solutions, the pressure of right apopore passes through right three valve openings, the right side when right variable control valve component operation
One through flow hole, right five valve openings act on the active force for pushing right control valve core to overcome right spring on right presser sensor plunger to the right one
The movement of screw plug direction drives right shoulder to leave a right step, so that the intracavitary water of corresponding right plunger greatly is by right a valve opening, the right side
Two through flow holes, right four valve openings, right annular flow slot, a right threaded hole flow back in right inlet opening；Right big plunger corresponding in this way
Movement would not export water flow, and the discharge capacity of entire booster water pump reduces, to realize the variable of booster water pump.
In further technical solution, the left end of the pump case axial channel is equipped with socket between pump case and left cylinder
Left sealing plate on left big plunger and left small plunger；The right end of the pump case axial channel is installed between pump case and right cylinder body
There is the right sealing plate being socketed on right big plunger and right small plunger；Left sealing plate and right sealing plate, which is arranged, can effectively prevent water flow
With the cross contamination of hydraulic oil.
(3) beneficial effect
Compared with prior art, technical solution of the present invention, which has the advantage that, realizes difference by a booster water pump
Change pressure ratio under operating condition, compared with the prior art, volume compact, installed power are low, and use cost is low.
Detailed description of the invention
Fig. 1 is the principal section structural schematic diagram of booster water pump in the present invention；
Fig. 2 is the schematic diagram of the section structure in Fig. 1 at C-C；
Fig. 3 is the cut-away section structural schematic diagram in Fig. 1 at B-B；
Fig. 4 is the schematic diagram of the section structure in Fig. 1 at A-A；
Fig. 5 is the cut-away section structural schematic diagram in Fig. 1 at D-D.
Specific embodiment
It please refers to shown in Fig. 1-5, a kind of booster water pump, including the pump case 1 with axial channel, is provided on 1 side wall of pump case
The P hydraulic fluid port 001 and T hydraulic fluid port 002 being connected to axial channel, the inner hole wall middle part of pump case 1 have first annular internal shoulder 101, P oil
001 and T of mouth hydraulic fluid port 002 is located at the left and right sides of first annular internal shoulder 101.
Left cylinder 2 with left big plunger cavity 2a and left small plunger chamber 2b, and there is right big plunger cavity 3a and right pillar
The right cylinder body 3 of chamber 3b is filled in, the left cylinder 2 and right cylinder body 3 are connected to the left and right ends of 1 axial channel of pump case；Left cylinder 2
On the left apopore 202 that is provided with left inlet opening 201 and is connected to left big plunger cavity 2a, be provided with right inlet opening 301 on right cylinder body 3
And the right apopore 302 being connected to right big plunger cavity 3a.
Wherein, left cylinder 2 is equipped with the first from left valve opening 203 being connected to left big plunger cavity 2a, and with left small plunger chamber 2b
The second from left valve opening 204 of connection, the first from left valve opening 203 and the second from left valve opening 204 are connected to left inlet opening 201；The first from left valve
The first from left inlet valve 29b for allowing water to enter in left big plunger cavity 2a from left inlet opening 201, the second from left valve are equipped with only in hole 203
The second from left inlet valve 29c for only water being allowed to enter in left small plunger chamber 2b from left inlet opening 201 is equipped in hole 204；The left cylinder 2
It is equipped with three valve opening 205 of a left side being connected to left small plunger chamber 2b, left three valve opening 205 passes through the left side being arranged in left cylinder 2
Intercommunicating pore 2d is connected to left apopore 202；Being equipped in the left apopore 202 only allows water from the left side that left big plunger cavity 2a is discharged
One drain valve 10a, left three valve opening 205 is interior to be equipped with the second from left drain valve 10c for only water being allowed to be discharged from left small plunger chamber 2b；It is right
Cylinder body 3 is equipped with one valve opening 303 of the right side being connected to right big plunger cavity 3a, and two valve opening of the right side being connected to right small plunger chamber 3b
304, a right valve opening 303 and right two valve openings 304 are connected to right inlet opening 301；It is equipped in a right valve opening 303 and only permits
Xu Shui enters the one inlet valve 39b of the right side in right big plunger cavity 3a from right inlet opening 301, is equipped in right two valve opening 304 and only permits
Xu Shui enters the two inlet valve 39c of the right side in right small plunger chamber 3b from right inlet opening 301；The right cylinder body 3 is equipped with and right pillar
Three valve opening 305 of the right side of chamber 3b connection is filled in, right three valve opening 305 passes through the right intercommunicating pore 3e being arranged in right cylinder body 3 and goes out with the right side
Water hole 302 is connected to；The one drain valve 10b of the right side for allowing water to be discharged from right big plunger cavity 3a, institute are equipped with only in the right apopore 302
Stating to be equipped in three valve opening 305 of the right side only allows water from two drain valve 10d of the right side that right small plunger chamber 3b is discharged.
With axial passage and piston 6 in T shape, be set in pump case 1 and can left and right sliding, the thin axle portion of piston 6 and
The internal perisporium of first annular internal shoulder 101 seals cooperation, and the is equipped between the big axle portion periphery of piston 6 and the inner hole wall of pump case 1
One sealing ring 601 forms left piston chamber 1d between the left side and first annular internal shoulder 101 of the big axle portion of piston 6, piston 6
The right side of big axle portion forms right piston chamber 1b, and the left side of the thin axle portion of piston 6 forms oil back chamber 1a, P hydraulic fluid port 001 and left piston chamber
1d connection, T hydraulic fluid port 002 are connected to oil back chamber 1a, and the axial channel internal perisporium of piston 6 is equipped with the second annular internal shoulder 602, the
Second ring internal shoulder 602 surrounds valve port 604, and the first through flow hole 6b, the second through flow hole 6a and third are provided in the thin axle portion of piston 6
The axial passage and left piston chamber 1d of through flow hole 6f, the first through flow hole 6b to be connected to the second annular 602 right side of internal shoulder, second
Axial passage and oil back chamber 1a of the through flow hole 6a to be connected to the second annular 602 left side of internal shoulder, the import of third through flow hole 6f
End is located in valve port 604, and there are three the outlet ends of third through flow hole 6f, one of them is to be connected to first with right piston chamber 1b always
Outlet end 6f1, another is second outlet end 6f2 whether selection is connected to oil back chamber 1a or left piston chamber 1d, and third is
Always the third outlet end 6f3 being connected to the axial passage of the second 602 left end of annular internal shoulder.
Big valve core 7 and small valve core 8, the diameter of big valve core 7 are greater than the diameter of valve port 604, and big valve core 7 is located in the second annular
602 left side of convex shoulder is simultaneously slidably connected in the axial passage of piston 6, and the left and right sliding of big valve core 7 can determine to open valve port 604
Whether left port, small valve core 8 is in T shape, and the enlarged head of small valve core 8 is located at the second annular 602 right side of internal shoulder, small valve core 8
Thin axle portion is threadedly coupled after passing through valve port 604 with big valve core 7, and the left and right sliding of the enlarged head of small valve core 8 can determine to open valve port
Whether 604 right output port.
The left end of the axial passage of the piston 6 is equipped with the big plunger 5b in a left side being slidably connected in left big plunger cavity 2a,
The right end of the axial passage of the piston 6 is equipped with the big plunger 5a in the right side being slidably connected in right big plunger cavity 3a；The piston 6
Left side on the left small plunger 4b being slidably connected in left small plunger chamber 2b is installed, installed on the right side of the piston 6
There is the right small plunger 4a being slidably connected in right small plunger chamber 3b.Wherein left big plunger 5b is identical with right big plunger 5a size, left
Small plunger 2b is identical with right small plunger 2a size.
Left Variable Control valve module for controlling flow and pressure in left apopore 202 is installed in the left cylinder 2,
Right Variable Control valve module for controlling flow and pressure in left apopore 202 is installed in the right cylinder body 3.
The left Variable Control valve module includes including left control valve core 12a, left spring 13a, left presser sensor plunger
11a；It is described along the first from left threaded hole 206 being connected to left inlet opening 201 that is axially arranged with of the first from left valve opening 203 in the left cylinder 2
The bottom of the first from left threaded hole 206 is axially arranged with left four valve openings 207 along it, between the first from left threaded hole 206 and left four valve openings 207
Form the first from left step 208；The bottom of left four valve opening 207 is axially arranged with five valve opening 2i of a left side along it；It is equipped in the left cylinder 2
One end of the first from left through flow hole 2h and the second from left through flow hole 2g, the first from left through flow hole 2h are connected to the bottom of five valve opening 2i of a left side, are another
End is connected to left three valve openings 205；Described one end the second from left through flow hole 2g is connected to left four valve openings 207, the other end and the first from left valve opening 203
Connection.
The left control valve core 12a is slidably connected in left four valve openings 207, is being located at a left side on the left control valve core 12a
One end in one threaded hole 206 is equipped with left shoulder 12a1, through-flow close to the second from left on the circumference side of the left control valve core 12a
Left annular flow slot 12a2 is equipped at the 2g of hole, the left shoulder 12a1 and the first from left step 208 cooperate for controlling the first from left threaded hole
206 are slidably connected in five valve opening 2i of a left side with the on-off of left four valve openings 207, the left presser sensor plunger 11a, the left pressure
The diameter of sensitive plunger 11a is less than the diameter of left control valve core 12a；The opening of the first from left threaded hole 206 is equipped with the first from left
Screw plug 23, the left spring 13a are located between the first from left screw plug 23 and left control valve core 12a for forcing the left shoulder 12a1 pressure
Tightly on the first from left step 208.
The right Variable Control valve module includes including right control valve core 12b, right spring 13b, right presser sensor plunger
11b；It is described along one threaded hole 306 of the right side being connected to right inlet opening 301 that is axially arranged with of a right valve opening 303 in the right cylinder body 3
The bottom of a right threaded hole 306 is axially arranged with right four valve openings 307 along it, between a right threaded hole 306 and right four valve openings 307
Form a right step 308；The bottom of right four valve opening 307 is axially arranged with five valve opening 3i of the right side along it；It is equipped in the right cylinder body 3
One end of one through flow hole 3h of the right side and two through flow hole 3g, the right through flow hole 3h of the right side is connected to the bottom of five valve opening 3i of the right side, is another
End is connected to right three valve openings 305；Described right one end two through flow holes 3g be connected to right four valve openings 307, the other end and one valve opening 303 of the right side
Connection.
The right control valve core 12b is slidably connected in right four valve openings 307, is being located at the right side on the right control valve core 12b
One end in one threaded hole 306 is equipped with right shoulder 12b1, through-flow close to the right side two on the circumference side of the right control valve core 12b
Right annular flow slot 12b2 is equipped at the 3g of hole, the right shoulder 12b1 and a right step 308 cooperation are for controlling a right threaded hole
306 are slidably connected in five valve opening 3i of the right side with the on-off of right four valve openings 307, the right presser sensor plunger 11b, the right pressure
The diameter of sensitive plunger 11b is less than the diameter of right control valve core 12b；The opening of a right threaded hole 306 is equipped with the right side one
Screw plug 33, the right spring 13b are located between a right screw plug 33 and right control valve core 12b for forcing the right shoulder 12b1 pressure
Tightly on a right step 308.
The left end of 1 axial channel of pump case is equipped between pump case 1 and left cylinder 2 is socketed in left big plunger 5b and a left side
Left sealing plate 24 on small plunger 4b；The right end of 1 axial channel of pump case is equipped with socket between pump case 1 and right cylinder body 3
Right sealing plate 34 on right big plunger 5a and right small plunger 4a；Left sealing plate 24 and right sealing plate 34, which is arranged, to be effectively prevent
The cross contamination of water flow and hydraulic oil.
When the booster water pump works, P hydraulic fluid port 001 is connected with hydraulic oil high pressure oil port, and T hydraulic fluid port 002 and hydraulic oil tank are straight
It connects connected, by controlling the bilateral reciprocation to 001 oil-feeding control piston 6 of P hydraulic fluid port, and then drives and be located at piston 6 left end
Left big plunger and left small plunger move back and forth in left big plunger cavity 2a and left small plunger chamber 2b respectively, pass through the first from left inlet valve
It is left that the cooperation of 29b, the first from left drain valve 10a, the second from left inlet valve 29c, the second from left drain valve 10c realize that water enters from left inlet opening 201
In big plunger cavity 2a and left small plunger chamber 2b, then it is discharged from left 202 high pressure of apopore；It drives at the same time and is located at 6 right side of piston
The big plunger in the right side at end and right small plunger move back and forth in right big plunger cavity 3a and right small plunger chamber 3b respectively, are intake by the right side one
The cooperation of valve 39b, one drain valve 10b of the right side, two inlet valve 39c of the right side, two drain valve 10d of the right side realize that water enters from right inlet opening 301
In right big plunger cavity 3a and right small plunger chamber 3b, then it is discharged from right 302 high pressure of apopore；The pressure ratio of booster water pump at this timeWherein S is the active area of piston；SDIt is the active area of left big plunger or right big plunger；SXIt is Zuo little Zhu
The active area of plug or right small plunger；When the pressure of left apopore 202 reaches predetermined pressure, left Variable Control valve module work
Make, the pressure of left apopore 202 acts on left presser sensor column by left three valve openings 205, the first from left through flow hole 2h, five valve opening 2i of a left side
It pushes left control valve core 12a that the active force of left spring 13a is overcome to move to 23 direction of the first from left screw plug on plug 11a, drives left shoulder
12a1 leaves the first from left step 208 so that the water in corresponding left big plunger cavity 2a by the first from left valve opening 203, the second from left through flow hole 2g,
Left four valve openings 207, left annular flow slot 12a2, the first from left threaded hole 206 flow back in left inlet opening 201；Left huge pillar corresponding in this way
The movement of plug would not export water flow, to realize the off-load of left big plunger cavity 2a；With should the pressure of right apopore 302 reach
When predetermined pressure, right variable control valve component operation, the pressure of right apopore 302 passes through right three valve openings 305, a right through flow hole
3h, five valve opening 3i of the right side act on the active force for pushing right control valve core 12b to overcome right spring 13b on right presser sensor plunger 11b
33 direction of a screw plug moves to the right, and right shoulder 12b1 is driven to leave a right step 308, so that in corresponding right big plunger cavity 3a
Water is flowed back to by a right valve opening 303, two through flow hole 3g of the right side, right four valve openings 307, right annular flow slot 12b2, a right threaded hole 306
In right inlet opening 301；The movement of right big plunger corresponding in this way would not export water flow, to realize unloading for right big plunger cavity 3a
Lotus, the at this time pressure ratio of booster water pumpWherein S is the active area of piston；SXIt is left small plunger or right small plunger
Active area.Here it if the pressure of left apopore 202 is applied directly on left control valve core 12a, is also able to achieve corresponding
The off-load of left big plunger cavity 2a, but in order to realize the high pressure of water flow in left apopore 202, the specification of left spring 13a will be very
Greatly, so that the volume of left control valve core 12a will also increase, therefore leakage rate is increased；Therefore left presser sensor plunger 11a's is straight
Diameter of the diameter less than left control valve core 12a not only reduces the specification of left spring 13a, also greatly reduces leakage rate.
Wherein the reciprocating motion control of piston 6 is completed by big valve core 7 and small valve core 8, and the diameter of big valve core 7 is greater than
The diameter of valve port 604, the thin axle portion of small valve core 8 are threadedly coupled after passing through valve port 604 with big valve core 7, the enlarged head of small valve core 8
Whether left and right sliding can determine to open the right output port of valve port 604, the left and right sliding of big valve core 7 can determine to open a left side for valve port 604
Whether port.
When small valve core 8 open valve port 604 right output port when, oil liquid can through P hydraulic fluid port 001, the first through flow hole 6b, third is through-flow
Enter right piston chamber 1b after the 6f of hole, the oil liquid of right piston chamber 1b acts on (this on the annulus area formed by piston 6 and right plunger
Annulus area be greater than piston 6 convex shoulder part formed annulus area), piston 6 moves downward under difference in areas, when piston 6 by
The second outlet end 6f2 of dextrad left movement to third through flow hole 6f are communicated with oil back chamber 1a, and the left end chamber of big valve core 7 passes through the
The second outlet end 6f2 of threeway discharge orifice 6f is communicated with oil return opening, and small valve core 8 moves downward the right output port of close port 604, big valve
Core 7 opens the left port of valve port 604, such right piston chamber 1b by after the left port of valve port 604 and the second through flow hole 6a with return
Oil pocket 1a is communicated, and then flows to T hydraulic fluid port 002, and such piston 6 starts to move right, when piston 6 moves right third through flow hole
When the second outlet end 6f2 of 6f is communicated with left piston chamber 1d, big valve core 7 and the small valve core 8 (big valve core 7 under the action of difference in areas
Diameter be greater than valve port 604 diameter) move right together, big valve core 7 is re-closing off the left port of valve port 604,8 weight of small valve core
The new right output port for opening valve port 604, such piston 6 start to move downward, and form circulation.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of booster water pump, which is characterized in that including the pump case with axial channel, be provided on pump case side wall and axial channel
The inner hole wall middle part of the P hydraulic fluid port and T hydraulic fluid port of connection, pump case has first annular internal shoulder, and P hydraulic fluid port and T hydraulic fluid port are located at the first ring
The left and right sides of shape internal shoulder；
Left cylinder with left big plunger cavity and left small plunger chamber, and the right cylinder with right big plunger cavity and right small plunger chamber
Body, the left cylinder and right cylinder body are connected to the left and right ends of pump case axial channel；Be provided on left cylinder left inlet opening with
And left apopore be connected to left big plunger cavity, the right water outlet for being provided with right inlet opening and being connected to right plunger cavity greatly on right cylinder body
Hole；
Wherein, left cylinder is equipped with the first from left valve opening being connected to left big plunger cavity, and the second from left valve being connected to left small plunger chamber
Hole, the first from left valve opening and the second from left valve opening are connected to left inlet opening；Being equipped in the first from left valve opening only allows water from Zuo Jinshui
Hole enters the intracavitary the first from left inlet valve of left big plunger, and being equipped in the second from left valve opening only allows water to enter left pillar from left inlet opening
Fill in intracavitary the second from left inlet valve；The left cylinder is equipped with three valve opening of a left side that be connected to left small plunger chamber, left three valve opening and
Left apopore connection；The first from left drain valve being discharged equipped with only permission water from left big plunger cavity in the left apopore, described left three
The second from left drain valve for only water being allowed to be discharged from left small plunger chamber is equipped in valve opening；Right cylinder body, which is equipped with, to be connected to right big plunger cavity
A right valve opening, and two valve opening of the right side being connected to right small plunger chamber, a right valve opening and right two valve openings connect with right inlet opening
It is logical；Being equipped in a right valve opening only allows water to enter intracavitary one inlet valve of the right side of right big plunger from right inlet opening, and described right two
Being equipped in valve opening only allows water to enter intracavitary two inlet valve of the right side of right small plunger from right inlet opening；The right cylinder body is equipped with and the right side
Three valve opening of the right side of small plunger chamber connection, right three valve opening are connected to right apopore；Being equipped in the right apopore only allows water
One drain valve of the right side being discharged from right big plunger cavity, interior be equipped with of right three valve opening only allow water from the right side two that right small plunger chamber is discharged
Drain valve；
With axial passage and piston in T shape, be set in pump case and can left and right slide, the thin axle portion of piston with it is first annular
The internal perisporium of internal shoulder seals cooperation, and the first sealing ring, piston are equipped between the big axle portion periphery of piston and the inner hole wall of pump case
Big axle portion left side and first annular internal shoulder between form left piston chamber, the right side of the big axle portion of piston forms right piston
The left side of chamber, the thin axle portion of piston forms oil back chamber, and P hydraulic fluid port is connected to left piston chamber, and T hydraulic fluid port is connected to oil back chamber, piston
Axial channel internal perisporium is equipped with the second annular internal shoulder, and the second annular internal shoulder surrounds valve port, is provided in the thin axle portion of piston
First through flow hole, the second through flow hole and third through flow hole, the first through flow hole is to the axial direction that is connected on the right side of the second annular internal shoulder
Channel and left piston chamber, for the second through flow hole to the axial passage and oil back chamber that are connected on the left of the second annular internal shoulder, third is logical
The input end of discharge orifice is located in valve port, and there are three the outlet ends of third through flow hole, one of them is to be connected to always with right piston chamber
First exit end, another is second outlet end of selection whether be connected to oil back chamber or left piston chamber, third is a be always with
The third outlet end of the axial passage connection of second annular internal shoulder left end；
Big valve core and small valve core, the diameter of big valve core are greater than the diameter of valve port, and big valve core is located on the left of the second annular internal shoulder simultaneously
It is slidably connected in the axial passage of piston, whether the left and right sliding of big valve core can determine to open the left port of valve port, small valve core
In T shape, the enlarged head of small valve core is located on the right side of the second annular internal shoulder, the thin axle portion of small valve core pass through after valve port with big valve core
It is threadedly coupled, whether the left and right sliding of the enlarged head of small valve core can determine to open the right output port of valve port；
The left end of the axial passage of the piston, which is equipped with, is slidably connected at the intracavitary big plunger in a left side of left big plunger, the piston
The right end of axial passage, which is equipped with, is slidably connected at the intracavitary big plunger in the right side of right big plunger；It is equipped on the left side of the piston
It is slidably connected at the intracavitary left small plunger of left small plunger, is equipped on the right side of the piston and is slidably connected at right small plunger chamber
Interior right small plunger；
Left Variable Control valve module for controlling flow and pressure in left apopore, the right cylinder are installed in the left cylinder
Right Variable Control valve module for controlling flow and pressure in left apopore is installed in vivo.
2. booster water pump according to claim 1, which is characterized in that the left Variable Control valve module includes including left control
Spool processed, left spring, left presser sensor plunger；It is connected to along being axially arranged with for the first from left valve opening with left inlet opening in the left cylinder
The bottom of the first from left threaded hole, the first from left threaded hole is axially arranged with left four valve openings, the first from left threaded hole and left four valve openings along it
Between formed the first from left step；The bottom of left four valve opening is axially arranged with left five valve openings along it；The first from left is equipped in the left cylinder
Through flow hole and the second from left through flow hole, one end of the first from left through flow hole be connected to the bottom of left five valve openings, the other end and three valve openings of a left side
Connection；The second from left through flow hole one end is connected to left four valve openings, the other end is connected to the first from left valve opening；
The left control valve core is slidably connected in left four valve openings, in one be located in the first from left threaded hole in the left control valve core
End is equipped with left shoulder, and left annular flow slot, institute are being equipped at the second from left through flow hole on the circumference side of the left control valve core
Left shoulder and the cooperation of the first from left step are stated for controlling the on-off of the first from left threaded hole and left four valve openings, the left presser sensor plunger is sliding
Dynamic to be connected in left five valve openings, the diameter of the left presser sensor plunger is less than the diameter of left control valve core；The first from left screw thread
The opening in hole is equipped with the first from left screw plug, and the left spring is between the first from left screw plug and left control valve core for forcing the left side
Shoulder is pressed on the first from left step.
3. booster water pump according to claim 1, which is characterized in that the right Variable Control valve module includes including right control
Spool processed, right spring, right presser sensor plunger；It is connected to along being axially arranged with for a right valve opening with right inlet opening in the right cylinder body
The bottom of a right threaded hole, a right threaded hole is axially arranged with right four valve openings, a right threaded hole and right four valve openings along it
Between form a right step；The bottom of right four valve opening is axially arranged with right five valve openings along it；The right side one is equipped in the right cylinder body
Through flow hole and right two through flow holes, one end of a right through flow hole be connected to the bottom of right five valve openings, three valve openings of the other end and the right side
Connection；Described right two through flow hole one end is connected to right four valve openings, the other end is connected to a right valve opening；
The right control valve core is slidably connected in right four valve openings, in one be located in a right threaded hole in the right control valve core
End is equipped with right shoulder, is being equipped with right annular flow slot, institute at right two through flow holes on the circumference side of the right control valve core
Right shoulder and right step cooperation are stated for controlling the on-off of a right threaded hole and right four valve openings, the right presser sensor plunger is sliding
Dynamic to be connected in right five valve openings, the diameter of the right presser sensor plunger is less than the diameter of right control valve core；A right screw thread
The opening in hole is equipped with a right screw plug, and the right spring is located between a right screw plug and right control valve core for forcing the right side
Shoulder is pressed on a right step.
4. booster water pump according to claim 1, which is characterized in that the left end of the pump case axial channel is in pump case and a left side
The left sealing plate being socketed on left big plunger and left small plunger is installed between cylinder body；The right end of the pump case axial channel is pumping
The right sealing plate being socketed on right big plunger and right small plunger is installed between shell and right cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811460961.5A CN109611305B (en) | 2018-12-01 | 2018-12-01 | Booster water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811460961.5A CN109611305B (en) | 2018-12-01 | 2018-12-01 | Booster water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109611305A true CN109611305A (en) | 2019-04-12 |
| CN109611305B CN109611305B (en) | 2020-02-21 |
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ID=66006741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811460961.5A Active CN109611305B (en) | 2018-12-01 | 2018-12-01 | Booster water pump |
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| Country | Link |
|---|---|
| CN (1) | CN109611305B (en) |
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| CN114076131A (en) * | 2020-08-20 | 2022-02-22 | 广东精克仕动力技术有限公司 | Automatic cylinder commutator |
| CN115434974A (en) * | 2022-08-31 | 2022-12-06 | 潍柴动力股份有限公司 | Pilot-operated type hydraulic proportional actuating mechanism and hydraulic pump |
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| US2508298A (en) * | 1948-04-16 | 1950-05-16 | Oliver J Saari | Fluid pressure intensifying device |
| WO1993005300A1 (en) * | 1991-09-06 | 1993-03-18 | The University Of British Columbia | Modular digital actuator |
| CN2743573Y (en) * | 2004-07-08 | 2005-11-30 | 韩昌求 | Variable capacity booster pump |
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| Publication number | Publication date |
|---|---|
| CN109611305B (en) | 2020-02-21 |
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Effective date of registration: 20200123 Address after: 257000 Dongying West Suburb Industrial Park, Shandong Province (Dong Jixiang Government East) Applicant after: DongYing Shengchang Petroleum Machinery Co.,Ltd. Address before: 315040 Room 408-1, 265, 75 blocks, Huangguxincun, Baihe Street, Yinzhou District, Ningbo City, Zhejiang Province Applicant before: Li Jun |
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