CN109707587A - Based on hydraulic piston pump - Google Patents
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- CN109707587A CN109707587A CN201811388703.0A CN201811388703A CN109707587A CN 109707587 A CN109707587 A CN 109707587A CN 201811388703 A CN201811388703 A CN 201811388703A CN 109707587 A CN109707587 A CN 109707587A
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Abstract
The invention discloses a kind of based on hydraulic piston pump, hydraulic pump output liquid by enter liquid channel enter piston pump give piston pump provide power, piston pump design has automatic reverse function, so that when piston is moved to lower dead center, liquid can push piston toward moving up into upper cylinder barrel lower chambers, and when piston is moved to top dead centre, liquid can enter lower cylinder barrel upper chamber to push piston is past to move down, it moves repeatedly, so that the target liq extraction of piston pump bottom be come up.Liquid and enter liquid channel out and be all provided in piston pump ontology.The almost all of channel of apparatus of the present invention is all opened in the piston pump pump housing, this is very beneficial for the integration of piston pump and makes device more exquisite, more efficient.
Description
Technical field
The present invention relates to a kind of piston pumps, more specifically to a kind of based on hydraulic piston pump.
Background technique
Similar to Publication No. 100497882C, the Chinese invention patent of entitled " a kind of hydraulic oil production method and its device "
In, a kind of hydraulic oil producing device is disclosed, used piston pump, has used existing reversal valve and designed in this arrangement
Complicated and long pipeline, and pipeline also in the piston pump pump housing outside, be highly detrimental to the integration and efficiency of device
It improves.This is only an example of piston pump.In addition to this, many piston pumps need to carry out the chamber of piston to vacuumize
It is able to use, on the other hand this aspect, which will lead to cost and get higher, is likely to occur the situation of gas leakage to influence to use.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of based on hydraulic piston pump, designs a kind of novel based on liquid
The piston pump of pressure can realize the function of piston pump automatic reverse not needing to vacuumize and reduce in the case where pipeline connection
Energy.
In order to achieve the above object, the present invention takes following technical scheme:
It is a kind of based on hydraulic piston pump, including the piston pump pump housing, the piston pump pump housing includes superposed upper pump casing, position
In the commutation pump housing at middle part and positioned at the lower pump body of lower part；
Cylinder barrel is offered in upper pump casing, upper piston is provided in upper cylinder barrel, and upper cylinder barrel is divided into positioned at upper by upper piston
The upper cylinder barrel upper chamber of side and underlying upper cylinder barrel lower chambers；
Lower cylinder barrel is offered in lower pump body, lower piston is provided in lower cylinder barrel, and lower cylinder barrel is divided into positioned at upper by lower piston
The lower cylinder barrel upper chamber of side and underlying lower cylinder barrel lower chambers；
The commutation pump housing is hollow columnar, and the hollow region that a piston rod passes through the commutation pump housing connects upper piston and lower piston
It is connected to both ends；
The piston pump further includes being connected to the output end of hydraulic pump and entering liquid channel as power input, and for receiving
The liquid outlet channel for the target liq that collection piston pump is extracted；Enter liquid channel and liquid outlet channel to be opened in the piston pump pump housing；
It is logical that first passage hole, second channel hole, third are successively equidistantly offered from top to bottom in the inner wall of the commutation pump housing
Road hole, fourth lane hole and Five-channel hole；
First passage hole is connected to Five-channel Kong Junyu liquid outlet channel；
Second channel hole is connected to upper cylinder barrel lower chambers；
Third channel hole is connected to liquid channel is entered；
Fourth lane hole is connected to lower cylinder barrel upper chamber；
Wall is fixed with the slide valve being axially movable by frictional force abutting in reversing pump body, and slide valve outer wall is along axial direction from upper past
Under successively offer the first groove and the second groove；
When lower piston is moved to top dead centre, lower piston pushes slide valve to move to top dead centre, while the first groove leads to first
Road hole is connected to second channel hole, and third channel hole is connected to by the second groove with fourth lane hole；
When upper piston is moved to lower dead center, upper piston pushes slide valve to move to lower dead center, while the first groove leads to second
Road hole is connected to third channel hole, and fourth lane hole is connected to by the second groove with Five-channel hole；
The bottom of lower cylinder barrel lower chambers is also connected with the first check valve for target liq to be oriented to lower cylinder barrel lower chambers；
The second one-way valve that lower cylinder barrel lower chambers also pass through guiding liquid outlet channel with liquid outlet channel is connected to；
Upper cylinder barrel upper chamber also passes through with liquid oil pipe out to be oriented to out the third check valve of liquid oil pipe and is connected to；
The 4th check valve that upper cylinder barrel upper chamber also passes through the upper cylinder barrel upper chamber of guiding with liquid outlet channel is connected to.
Also settable liquid oil pipe out above upper cylinder barrel, liquid oil pipe is connected to liquid outlet channel out；Out liquid oil pipe also with hydraulic pump
Input terminal connection.
Above upper cylinder barrel also it is settable enter liquid oil pipe, enter liquid oil pipe one end and be connected to the delivery outlet of hydraulic pump, the other end and
Liquid outlet channel connection.
Slide valve inner wall can also be close to fixed valve fuse tube, and the axial length of valve fuse tube is longer than the axial length of the commutation pump housing, and
Valve fuse tube can protrude into cylinder barrel lower chambers or lower cylinder barrel upper chamber；When lower piston is moved to top dead centre, lower piston pushes valve letter
Pipe is moved to top dead centre, while valve fuse tube pushes slide valve to be moved to top dead centre；When upper piston is moved to lower dead center, upper piston is pushed away
Dynamic valve fuse tube is moved to lower dead center, while valve fuse tube pushes slide valve to be moved to lower dead center.
It is an advantage of the current invention that almost all of channel is all opened in the piston pump pump housing, this is very beneficial for piston
The integration of pump and make device more exquisite；And liquid stroke is most short to which piston motion efficiency can be more in this case
It is high；The connection for saving pipeline, on the one hand economizes on resources, and on the other hand reduces liquid in the issuable leakage of connector.Except this
Except, piston pump dexterously devises commutation component very much, and the conducting of each chamber of piston is also fine set
Meter, to not have to vacuumize piston pump and can swimmingly run very much, therefore the efficiency of piston motion also becomes very
It is high.
Detailed description of the invention
Fig. 1 and Fig. 2 is the broken away view of apparatus of the present invention when slide valve is moved to top dead centre after combining oil production equipment,
In, Fig. 1 is top half, and Fig. 2 is lower half portion；
Fig. 3 is the schematic diagram of the commutation pump housing when slide valve is moved to lower dead center.
In figure, 1, upper pump casing, 11, upper cylinder barrel, 12, upper cylinder barrel upper chamber, 13, upper piston, 14, upper cylinder barrel lower chambers, 2,
Commutate the pump housing, 21, slide valve, 22, valve fuse tube, 3, lower pump body, 31, lower cylinder barrel, 32, lower cylinder barrel upper chamber, 33, lower piston, 34, under
Cylinder barrel lower chambers, 35, piston rod, 41, first passage hole, 42, second channel hole, 43, third channel hole, 44, fourth lane hole,
45, Five-channel hole, the 51, first groove, the 52, second groove, 61, enter liquid channel, 62, liquid outlet channel, the 71, first check valve,
72, second one-way valve, 73, third check valve, the 74, the 4th check valve, 8, hydraulic pump, 81, power fluid output channel, 82, heating
Device, 83, insulating tube joint, 84, insulated enclosure box, 91, enter liquid oil pipe, 911, insulating centralizer, 912, hydraulic fitting, 92,
Longitudinal oil pipe, 93, lateral oil pipe, 10, master control cabinet, the 101, first cable, the 102, second cable, 103, temperature sensor,
104, level pressure sensor, 105, flow sensor.
Specific embodiment
A specific embodiment of the invention is described with reference to the accompanying drawing.In order to allow piston pump practicability more clearly
It embodies, by piston pump combination extracting device of oil, so that acting in oil recovery process for piston pump embodies.Due to combining
After extracting device of oil, device figure is larger, and be directed to some fine contents, thus by the overall diagram of device be split as Fig. 1 and
Fig. 2；In order to embody where two figures splice, two figures have small part overlapping in stitching portion.Fig. 1 and Fig. 2 performance is sliding
Valve 21 is moved to the device figure of top dead centre, in order to show the situation that slide valve 21 is moved to lower dead center, is additionally provided with Fig. 3, but Fig. 3
Only emphasis illustrates situation at the commutation pump housing 2, because other parts are all identical with Fig. 1, Fig. 2.Next combine this three figures into
Row description.
Understood firstly, the basic ideas and content to oil recovery process do a summary with facilitating.
The basic process that petroleum is extracted using newly-designed piston pump is: hydraulic pump 8 exports oil liquid by entering liquid channel
61, which enter piston pump, provides power to piston pump, and piston pump design has automatic reverse function, so that when piston is moved to lower dead center
When, oil liquid can enter upper cylinder barrel lower chambers 14 to push piston toward moving up, and when piston is moved to top dead centre, oil liquid can enter
Lower cylinder barrel upper chamber 32 moves repeatedly to push piston toward moving down, so that the oil reservoir oil liquid of piston pump bottom be extracted
Come up, and a portion oil liquid and hydraulic pump 8 are formed into a circulation.Here some problems being related to are how to allow work
Plug realizes automatic reverse function, then how to allow piston motion (not being said as long as liquid is poured in one end to piston forward
Its smooth movement can be allowed, the case where other end also will affect the movement of piston), how about collect oil liquid of extraction etc..It connects
Get off and systematically this device is introduced.
Piston pump is introduced first.Device in figure with hatching just represents piston pump, and piston pump includes the piston pump pump housing
(piston pump and the piston pump pump housing do not have essential distinction in principle；Piston pump is more likely to the function of description piston pump, can be real
Existing piston motion, and the piston pump pump housing is more likely to description device itself or structure；Just look like the difference of cup and cup body), be
Statement is convenient, and the piston pump pump housing is divided into three parts, be respectively upper pump casing 1 in top, in the intermediate commutation pump housing 2 with
And the lower pump body 3 being below；This three pieces of regions using the top surface of the bottom surface of upper cylinder barrel 11 and lower cylinder barrel 31 mentioned below as
Cut-off rule distinguishes；
Cylinder barrel 11 is offered in upper pump casing 1, upper piston 13 is provided in upper cylinder barrel 11, and upper piston 13 divides upper cylinder barrel 11
It is segmented into cylinder barrel upper chamber 12 and upper cylinder barrel lower chambers 14；Lower cylinder barrel 31 is offered in lower pump body 3, is provided with down in lower cylinder barrel 31
Lower cylinder barrel 31 is divided into lower cylinder barrel upper chamber 32 and lower cylinder barrel lower chambers 34 by piston 33, lower piston 33；Upper piston 13 and lower work
Plug 33 is connected by piston rod 35；
It can be seen that if upper cylinder barrel 11 and lower cylinder barrel 31 are all completely enclosed, and each cylinder barrel is also divided by piston
For two pieces of completely enclosed chambers, then piston is irremovable (except non-vacuumizing) because of the effect of pressure；Below will
It mentions, four chambers are all to be connected to the external world so as to movement and can play the role of oil pumping.
The commutation pump housing 2 among upper cylinder barrel 11 and lower cylinder barrel 31 primarily serves the function of commutation, it is hollow columnar,
The piston rod 35 mentioned above is exactly the hollow region across the commutation pump housing 2.The commutation pump housing 2 primarily serves the effect of commutation,
It can mention below.
The device further includes hydraulic pump 8, and the output end of hydraulic pump 8 is connected to power fluid output channel 81, power fluid output
Pipeline 81 is connected to by insulating tube joint 83 to be entered liquid oil pipe 91 into liquid oil pipe 91 and will convey oil as power to piston pump
Liquid；In addition to this, being also connected to the liquid oil pipe that on piston pump pump housing top, (liquid oil pipe includes longitudinal oil pipe 92 and lateral oil out
Pipe 93, behind can mention), liquid oil pipe will collect the oil liquid that piston pump extracts out, and most of oil liquid is transferred out,
The input port that other sub-fraction oil liquid flows back into hydraulic pump 8 is formed into a circulation.
In order to the oil liquid for entering liquid oil pipe 91 is transported in piston pump it is necessary to opening up in the piston pump pump housing into liquid channel
61, enter liquid oil pipe 91 and is connected to liquid channel 61 is entered；Likewise, open up liquid outlet channel 62 in the piston pump pump housing, out liquid oil pipe and
Liquid outlet channel 62 is connected to；From entering after liquid oil pipe 91 enters liquid channel 61, the oil liquid of input should be taken the oil liquid that hydraulic pump 8 exports
It is come out with the oil liquid newly extracted from liquid outlet channel 62 and enters liquid oil pipe；Next will illustrate into 61 He of liquid channel
How liquid outlet channel 62 is formed into a loop, and how to allow piston motion during this.
First passage hole 41, second channel hole 42, the are successively equidistantly offered from top to bottom in the inner wall of the commutation pump housing 2
Triple channel hole 43, fourth lane hole 44 and Five-channel hole 45；
First passage hole 41 and Five-channel hole 45 are connected to liquid outlet channel 62；
Second channel hole 42 is connected to upper cylinder barrel lower chambers 14；
Third channel hole 43 is connected to liquid channel 61 is entered；
Fourth lane hole 44 is connected to lower cylinder barrel upper chamber 32；
Above connection is all to pump intracorporal channel by being opened in piston pump to realize.
Commutation 2 inner wall of the pump housing is fixed with the slide valve 21 being axially movable (that is, in no external force by frictional force abutting
Under effect, slide valve 21 is fixed by frictional force, once apply sufficiently large axial force, so that it may allow slide valve 21 to move axially),
21 outer wall of slide valve successively offers the first groove 51 and the second groove 52 along axial direction from top to bottom, and is easy to appropriately designed first
The position of groove 51 and the second groove 52, can meet following condition:
When slide valve 21 moves to top dead centre, first passage hole 41 is connected to by the first groove 51 with second channel hole 42, and second
Third channel hole 43 is connected to by groove 52 with fourth lane hole 44；
When slide valve 21 moves to lower dead center, second channel hole 42 is connected to by the first groove 51 with third channel hole 43, and second
Fourth lane hole 44 is connected to by groove 52 with Five-channel hole 45；
It is practical but it can be seen from the figure that the first groove 51 and the second groove 52 are all that axially symmetric two are presented
Above this is because the first groove 51 and the second groove 52 are all annular recess, therefore sectional view can cut two each annular recess
It is a.It is advantageous in that using annular recess, access opening can be assigned in the range of entire ring, be more convenient；But in principle,
The region for only opening up a fritter non-annularity can realize the function of being connected to two access openings as groove.
So also having the problem that here, how does slide valve 21 move? we said that slide valve 21 passed through before after all
Frictional force is fixed, and needs external force to push to realize axial movement；
Certainly utilize piston！When upper piston 13 is moved to lower dead center, slide valve 21 is pushed to be moved to lower dead center, lower piston
33 when being moved to top dead centre, and slide valve 21 is pushed to be moved to top dead centre.But in design of the invention, this is indirect:
21 inner wall of slide valve is also close to be fixed with valve fuse tube 22, and the axial length of valve fuse tube 22 is longer than the axial direction of the commutation pump housing 2
Length, in this way when valve fuse tube 22 is in top dead centre, can expose it is a bit of in upper cylinder barrel lower chambers 14, when valve fuse tube 22 is in lower dead center
When, it can expose a bit of in lower cylinder barrel upper chamber 32；The a bit of length specifically exposed can be selected according to the actual situation.
Next, lower piston 33 will push valve fuse tube 22 and be moved to top dead centre, together when lower piston 33 is moved to top dead centre
When valve fuse tube 22 push slide valve 21 to be moved to top dead centre；When upper piston 13 is moved to lower dead center, upper piston 13 pushes valve fuse tube
22 are moved to lower dead center, while valve fuse tube 22 pushes slide valve 21 to be moved to lower dead center；But it in principle, in fact can also be by valve fuse tube
22 a part as slide valve 21, thus the two is originally fixed up, for no other reason than that valve fuse tube 22 has " probe " to stretch
Out to upper cylinder barrel lower chambers 14 or lower cylinder barrel upper chamber 32 for piston promotion, we are just specially branched away；Namely
It says, piston can be enabled to push slide valve 21 by the design to 21 configuration of slide valve；It is in a word either indirectly or direct, on
It is that there is no problem that piston 13 or lower piston 33, which push this saying of slide valve 21,.
Next illustrate several check valves again, so that it may be described to the course of work of entire piston pump:
The bottom of lower cylinder barrel lower chambers 34 is also connected with the first list for oil reservoir oil liquid to be oriented to lower cylinder barrel lower chambers 34
To valve 71；
Lower cylinder barrel lower chambers 34 are also connected to by the second one-way valve 72 of guiding liquid outlet channel 62 with liquid outlet channel 62；
Upper cylinder barrel upper chamber 12 also passes through with liquid oil pipe out to be oriented to out the third check valve 73 of liquid oil pipe and is connected to；
Upper cylinder barrel upper chamber 12 is also connected to by being oriented to the 4th check valve 74 of upper cylinder barrel upper chamber 12 with liquid outlet channel 62；
The course of work of entire piston pump will be illustrated next, firstly, the imagination slide valve 21 be moved to lower dead center, at this time oil liquid from
Enter liquid channel 61 and enter upper cylinder barrel lower chambers 14, therefore piston up moves, lower 34 volume of cylinder barrel lower chambers increases, and oil liquid passes through
First check valve 71 is drawn into lower cylinder barrel lower chambers 34 from bottom；Following slide valve 21 is pushed to top dead centre by lower piston 33, this
When oil liquid from liquid channel 61 is entered enter lower cylinder barrel upper chamber 32, piston is toward moving down, then the oil liquid in lower cylinder barrel lower chambers 34 is just
Liquid outlet channel 62 can be entered by second one-way valve 72, and then enter liquid oil pipe, and is single by the 4th simultaneously in the process
Enter upper cylinder barrel upper chamber 12 to valve 74 (this allows upper piston 13 is past to move down)；Upper piston 13 pushes slide valve 21 to be moved to down
Stop, the oil liquid for entering the output of liquid channel 61 transfer to enter upper cylinder barrel upper chamber 12, and for piston toward moving up, oil reservoir oil liquid continues through the
One check valve 71 enters lower cylinder barrel lower chambers 34, and the oil liquid of upper cylinder barrel upper chamber 12 then passes through third check valve 73 and enters liquid
Oil pipe, lower piston 33 continue to press on slide valve 21, loop back and forth like this ... it can be seen that, during the work time in two cylinder barrels
All there is oil liquid in two chambers, this allows for piston can be with smooth movement in the case where not needing to vacuumize.
Next tubing section is stressed.It was said as before, oil pipe is divided into liquid oil pipe 91 and liquid oil pipe out, respectively
Play the role of inputting oil liquid to piston pump and collects the oil liquid extracted out；Wherein go out liquid oil pipe and be designed to two parts, respectively
For longitudinal oil pipe 92 and lateral oil pipe 93；Longitudinal oil pipe 92 is installed on above the piston pump pump housing, and lateral oil pipe 93 is vertically connected at
Longitudinal oil pipe 92 and and longitudinal oil pipe 92 its conducting；Wherein, lateral oil pipe 93 is equipped with opening and can be used to export oil liquid, removes this
Except, lateral oil pipe 93 is also connected with the input terminal of hydraulic pump 8, can form a hydraulic circuit in this way.
For entering liquid oil pipe 91, radius is small compared to longitudinal oil pipe 92, it passes through insulated enclosure box 84 from longitudinal oil pipe 92
Top pass through and pass through hydraulic fitting 912 (conductive) and be connected to above the piston pump pump housing；It is otherwise noted that into liquid oil pipe 91
The other end be the power fluid output channel 81 that hydraulic pump 8 is connected to by insulating tube joint 83, therefore enter liquid oil pipe 91, liquid
Pressure pipe joint 912, the piston pump pump housing go out one not closed conductive path of liquid oil pipe (longitudinal oil pipe 92) formation, and enter liquid oil
Pipe 91 and out liquid oil pipe are insulation.Why to say such a conductive path, be in order to which additional description is some for oil pipe
Heating:
The device further includes a master control cabinet 10, and two cables are stretched out from master control cabinet 10, are known respectively as first
Cable 101 and the second cable 102, and be connected respectively to liquid oil pipe 91 and (be connected to outside longitudinal oil pipe 92 and enter liquid oil pipe 91
Part, that is, if the top surface of longitudinal oil pipe 92 will enter liquid oil pipe 91 and divide above to enter liquid oil pipe and tripping in liquid oil pipe, then by cable
It is connected into liquid oil pipe) and longitudinal oil pipe 92, in this way, master control cabinet 10, entering liquid oil pipe 91, hydraulic fitting 912 (in principle
Hydraulic fitting 912 need not be described, entering liquid oil pipe 91 can be conductively connected with the piston pump pump housing by other means completely, than
As directly welding is ok), the piston pump pump housing and longitudinal oil pipe 92 just one galvanic circle of formation, and master control cabinet 10 is led to again
Cross the first cable 101 and the second cable 102 output 38V/400A (this is approximate range, in order to change heating intensity, electric current or
Voltage can change) dipulse direct current, thus by the fuel factor of electric current feed liquid oil pipe 91 and longitudinal oil pipe 92 into
Row heating.And temperature sensor 103 is additionally provided on lateral oil pipe 93, temperature survey can be carried out to the oil liquid of final output
Fixed, which can be transmitted to master control cabinet 10 for data by conducting wire, and master control cabinet 10 is suitable according to the temperature value of feedback
When the size of current of adjustment dipulse direct current, thus suitable control temperature range.
In addition to this, also mountable heater 82 on tangible power fluid output channel 81.In addition, in tripping in liquid oil pipe 91
Outer wall is also mountable insulating centralizer 911.
Other than mounting temperature sensor 103 is so as to adjust temperature, the also settable liquid-level pressure above upper pump casing 1
Sensor 104, the settable flow sensor 105 near the delivery outlet of lateral oil pipe 93, and all connect with master control cabinet 10.Liquid
The flow information that the shaft bottom liquid-level pressure signal and flow sensor 105 that position pressure sensor 104 detects detect is through special
It is conveyed to the control unit in master control cabinet 10 with cable, the flow value or pressure value that control unit comparison is manually set, and
Flow velocity and flow of adjustment hydraulic pump 8 etc. stablize it in the setting value.
Master control cabinet 10 is provided with power supply system, frequency converter, temperature control display portion, 38V/400A dipulse direct current
Source, flow, temperature, the storage of oil well liquid level data, long range radio transmissions, liquid level intelligent control stop and start system, intelligent temperature control
In addition to this system etc. can also sense flow sensor 105, liquid-level pressure in system so as to realize above-mentioned function
The data conversions such as the runing time of registration and equipment stop and start of device 104 and temperature sensor 103 are led at wireless data signal
Mobile network's terminal and antenna in master control cabinet 10 are crossed, on the internet with user's progress data remote transmission and mutually
It is dynamic.
Although the effect that foregoing merely illustrates piston pumps in the extraction process to oil liquid, however, it will be apparent that using should
Piston pump, then inputted by the power of hydraulic pump, so that it may realize the extraction of other target liqs.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of based on hydraulic piston pump, which is characterized in that including the piston pump pump housing, the piston pump pump housing includes positioned at upper
The upper pump casing in portion, positioned at the commutation pump housing at middle part and positioned at the lower pump body of lower part；
Cylinder barrel is offered in the upper pump casing, is provided with upper piston in the upper cylinder barrel, and the upper piston is by the upper cylinder barrel
It is divided into the upper cylinder barrel upper chamber being located above and underlying upper cylinder barrel lower chambers；
Lower cylinder barrel is offered in the lower pump body, is provided with lower piston in the lower cylinder barrel, and the lower piston is by the lower cylinder barrel
It is divided into the lower cylinder barrel upper chamber being located above and underlying lower cylinder barrel lower chambers；
The commutation pump housing is hollow columnar, piston rod pass through the hollow region of the commutation pump housing by the upper piston and
The lower piston is connected to both ends；
The piston pump further includes being connected to the output end of hydraulic pump and entering liquid channel as power input, and for collecting
State the liquid outlet channel for the target liq that piston pump is extracted；It is described enter liquid channel and the liquid outlet channel be opened in the piston
It pumps in the pump housing；
It is logical that first passage hole, second channel hole, third are successively equidistantly offered from top to bottom in the inner wall of the commutation pump housing
Road hole, fourth lane hole and Five-channel hole；
The first passage hole and Five-channel hole are connected to the liquid outlet channel；
The second channel hole is connected to the upper cylinder barrel lower chambers；
The third channel hole with it is described enter liquid channel be connected to；
The fourth lane hole is connected to the lower cylinder barrel upper chamber；
Wall is fixed with the slide valve being axially movable by frictional force abutting in the reversing pump body, the slide valve outer wall along axial direction from
On successively offer the first groove and the second groove down；
When the lower piston is moved to top dead centre, the lower piston pushes the slide valve to move to top dead centre, while described first
The first passage hole is connected to by groove with the second channel hole, and second groove is by the third channel hole and described
The connection of four-way hole；
When the upper piston is moved to lower dead center, the upper piston pushes the slide valve to move to lower dead center, while described first
The second channel hole is connected to by groove with the third channel hole, and second groove is by the fourth lane hole and described
The connection of Five-channel hole；
The bottom of the lower cylinder barrel lower chambers is also connected with for the target liq to be oriented to the of the lower cylinder barrel lower chambers
One check valve；
The lower cylinder barrel lower chambers also pass through with the liquid outlet channel to be oriented to the second one-way valve of the liquid outlet channel and is connected to；
The upper cylinder barrel upper chamber is connected to the third check valve that the liquid oil pipe out also passes through the guiding liquid oil pipe out；
The upper cylinder barrel upper chamber also passes through with the liquid outlet channel to be oriented to the 4th check valve of the upper cylinder barrel upper chamber and is connected to.
2. according to claim 1 based on hydraulic piston pump, which is characterized in that be additionally provided with out liquid above the upper cylinder barrel
Oil pipe, the liquid oil pipe out are connected to the liquid outlet channel.
3. according to claim 2 based on hydraulic piston pump, which is characterized in that it is described go out liquid oil pipe also with the hydraulic pump
Input terminal connection.
4. according to claim 1 based on hydraulic piston pump, which is characterized in that be additionally provided with above the upper cylinder barrel into liquid
Oil pipe, it is described enter liquid oil pipe one end be connected to the delivery outlet of the hydraulic pump, the other end is connected to the liquid outlet channel.
5. according to claim 1 based on hydraulic piston pump, which is characterized in that the slide valve inner wall is also close to be fixed with valve
Fuse tube, the axial length of the valve fuse tube is longer than the axial length of the commutation pump housing, and the valve fuse tube can protrude on described
Cylinder barrel lower chambers or the lower cylinder barrel upper chamber；When the lower piston is moved to top dead centre, the lower piston pushes the valve
Fuse tube is moved to top dead centre, while the valve fuse tube pushes the slide valve to be moved to top dead centre；When the upper piston is moved to down
When stop, the upper piston pushes the valve fuse tube to be moved to lower dead center, while the valve fuse tube pushes the slide valve to be moved to
Lower dead center.
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| CN201811388703.0A CN109707587B (en) | 2018-11-21 | 2018-11-21 | Hydraulic-based piston pump |
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| CN201811388703.0A CN109707587B (en) | 2018-11-21 | 2018-11-21 | Hydraulic-based piston pump |
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| CN109707587B CN109707587B (en) | 2020-01-07 |
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|---|---|
| CN109707587B (en) | 2020-01-07 |
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