CN109139409A - Digital constant flow inclined shaft plunger pump - Google Patents
Digital constant flow inclined shaft plunger pump Download PDFInfo
- Publication number
- CN109139409A CN109139409A CN201811165880.2A CN201811165880A CN109139409A CN 109139409 A CN109139409 A CN 109139409A CN 201811165880 A CN201811165880 A CN 201811165880A CN 109139409 A CN109139409 A CN 109139409A
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- Prior art keywords
- plunger pump
- piston
- executing agency
- inclined shaft
- pipe
- Prior art date
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- 239000007788 liquid Substances 0.000 claims abstract description 4
- 239000002828 fuel tank Substances 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract description 4
- 238000011105 stabilization Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007789 sealing 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
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/26—Control
-
- 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
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- 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
- F04B2205/00—Fluid parameters
- F04B2205/09—Flow through the pump
-
- 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
- F04B2205/00—Fluid parameters
- F04B2205/11—Outlet temperature
Abstract
The present invention provides a kind of digital constant flow inclined shaft plungers to pump, and belongs to plunger pump field.Digital constant flow inclined shaft plunger pump includes: plunger pump, and plunger pump includes plunger pump ontology, outflow pipeline and valve plate, flows out pipeline and valve plate is connected with plunger pump ontology respectively；Flow sensor, flow sensor are connected with outflow pipeline, and flow sensor is used to detect the flow of liquid in effuser road；One end of executing agency, executing agency is connected with plunger pump ontology, and the other end of executing agency is connected with valve plate, and executing agency is used to control the inclination angle of valve plate；Controller, controller are connected with flow sensor and executing agency respectively, and controller is used to receive the data on flows of flow sensor and controls executing agency's movement according to data on flows.The continuous adjustment to the inclination angle of valve plate in the process of work may be implemented in this digital constant flow inclined shaft plunger pump, the final stabilization for realizing plunger pump discharge.
Description
Technical field
The present invention relates to plunger pump fields, pump in particular to a kind of digital constant flow inclined shaft plunger.
Background technique
Currently, the revolving speed of engineering machinery field Normal hydraulic pump is all very high (3000r/min or so), for high revolving speed, height
The plunger pump of pressure needs to require using long-range control, a kind of suitable for the digital distribution that remotely controls therefore, it is necessary to research and develop
Constant flow hydraulic pump.
Summary of the invention
The present invention provides a kind of digital constant flow inclined shaft plungers to pump, it is intended to solve digital constant flow in the prior art
Inclined shaft plunger pumps the existing above problem.
The present invention is implemented as follows:
A kind of digital constant flow inclined shaft plunger pump, comprising:
Plunger pump, the plunger pump include plunger pump ontology, outflow pipeline and valve plate, the outflow pipeline and described
Valve plate is connected with the plunger pump ontology respectively；
Flow sensor, the flow sensor are connected with the outflow pipeline, and the flow sensor is for detecting institute
State the flow of liquid in outflow pipeline；
Executing agency, one end of the executing agency are connected with the plunger pump ontology, the other end of the executing agency
It is connected with the valve plate, the executing agency is used to control the inclination angle of the valve plate；
Controller, the controller are connected with the flow sensor and the executing agency respectively, the controller
It is moved for receiving the data on flows of the flow sensor and controlling the executing agency according to the data on flows.
In preferred embodiments of the present invention, the executing agency includes:
Piston/cylinder and piston piece, the piston piece are at least partially disposed in the piston/cylinder, and the piston piece will
The piston/cylinder is divided into the first accommodating chamber and the second accommodating chamber, and the piston piece and the piston/cylinder are slidably connected, institute
It states cylinder body to connect with the plunger pump ontology, the piston piece is connected with the valve plate；
First accommodating chamber is connected to the outflow pipeline；
First pipe, the both ends of the first pipe are connected to second accommodating chamber and the outflow pipeline respectively；
Second pipe, the both ends of the second pipe are connected to the accommodating chamber and external environment respectively；
Control valve, the control valve are connected with the first pipe and the second pipe respectively, the control valve and
The controller electrical connection is to receive the instruction of the controller and control the first pipe according to the instruction of the controller
With the second pipe be connected to or closing.
In preferred embodiments of the present invention, connected between the piston piece and the valve plate by piston rod, it is described
Piston rod runs through the piston/cylinder, and the piston rod and the piston/cylinder are slidably connected, the glide direction of the piston rod
Identical with the glide direction of the piston piece, the piston rod and the piston/cylinder are tightly connected.
In preferred embodiments of the present invention, connected between the piston rod and the piston/cylinder by shaft seal.
In preferred embodiments of the present invention, the edge placement of the piston rod and the valve plate is rotatablely connected.
In preferred embodiments of the present invention, the control valve is set as two-position three way switch valve.
In preferred embodiments of the present invention, the control valve is high-speed electromagnetic valve.
It further include fuel tank in preferred embodiments of the present invention, far from the appearance on the fuel tank and the second pipe
Receive chamber one end connection.
In preferred embodiments of the present invention, the plunger pump is connected to the fuel tank, and the fuel tank is the plunger pump
Fuel feeding.
In preferred embodiments of the present invention, the controller is PLC or single-chip microcontroller.
The beneficial effects of the present invention are:
The digital constant flow inclined shaft plunger pump that the present invention obtains by above-mentioned design, when in use, is existed using elder generation
A flow value is set in controller, then the flow in effuser road is measured using flow sensor, and will be current
Flow value be sent in controller, current flow value and preset flow value is compared in controller, in current stream
In the case that magnitude is greater than preset flow value, controller controls the inclination angle that executing agency adjusts valve plate, so that valve plate
Inclination angle becomes smaller, so as to control the flow-reduction of plunger pump, in the case where current flow value is less than preset flow value,
Controller controls the inclination angle that executing agency adjusts valve plate, so that the inclination angle of valve plate becomes larger, so as to control plunger pump
Flow increases, final to realize plunger pump stream so as to realize the continuous adjustment to the inclination angle of valve plate in the process of work
The stabilization of amount.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram for the digital constant flow inclined shaft plunger pump that embodiment of the present invention provides.
Icon: the digital constant flow inclined shaft plunger pump of 100-；110- plunger pump ontology；111- flows out pipeline；112- flow
Disk；120- flow sensor；130- system load；140- controller；150- control valve；160- piston/cylinder；161- first holds
Receive chamber；The second accommodating chamber of 162-；163- piston piece；164- piston rod；171- first pipe；172- second pipe；180- fuel tank.
Specific embodiment
To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.Based on the embodiment in the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Invent the range of protection.
In the description of the present invention, it is to be understood that, indicating position or the term of positional relationship are based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than the equipment of indication or suggestion meaning
Or element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be on or below second feature
Directly contacted including the first and second features, also may include the first and second features be not direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature second spy
Right above sign and oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below be directly below and diagonally below the second feature, or be merely representative of first feature horizontal height
Less than second feature.
Embodiment one
A kind of digital constant flow inclined shaft plunger pump 100 is present embodiments provided, referring to Fig. 1, this digital constant current
Amount inclined shaft plunger pumps 100
Plunger pump, plunger pump are inclined shaft plunger commonly used in the prior art pump, and this plunger pump includes plunger pump ontology
110, pipeline 111 and valve plate 112 are flowed out, pipeline 111 and valve plate 112 is flowed out and is connected respectively with plunger pump ontology 110.
In the present embodiment, one end and system load 130 on pipeline 111 far from plunger pump ontology 110 is flowed out to connect.
Wherein, there is certain inclination angle, when inclination angle becomes larger, plunger between valve plate 112 and plunger pump ontology 110
The strength of pump increases, when inclination angle becomes smaller, the flow-reduction of plunger pump.
Flow sensor 120, flow sensor 120 and outflow pipeline 111 connect, and flow sensor 120 is used for detection stream
Out in pipeline 111 liquid flow.
The probe of flow sensor 120 is set in outflow pipeline 111, and flow sensor 120 is to commonly use in the prior art
The sensor for measuring flow, this sensor be those skilled in the art known to, concrete model, usage mode etc.
Details are not described herein.
Executing agency, one end of executing agency and plunger pump ontology 110 connect, the other end and valve plate of executing agency
112 connections, executing agency are used to control the inclination angle of valve plate 112.
It should be pointed out that in the present embodiment, the position connected on valve plate 112 with executing agency is located at valve plate
Non-central position on 112, so as to realizing through a non-central position on actuating mechanism controls valve plate 112 and
The distance between plunger pump ontology 110 controls the inclination angle of plunger pump.
Controller 140, controller 140 are connected with flow sensor 120 and executing agency respectively, and controller 140 is used for
It receives the data on flows of flow sensor 120 and executing agency's movement is controlled according to data on flows.
There is storage unit, storage element can store preset flow value, utilize so as to realize in controller 140
Controller 140 carries out the current flow value in the outflow pipeline 111 measured in preset flow value and flow sensor 120
Compare.
When in use, a flow value is set in controller 140 using elder generation, then utilizes flow sensor 120
Flow in effuser road 111 is measured, and current flow value is sent in controller 140, controller 140 is to working as
Preceding flow value and preset flow value are compared, in the case where current flow value is greater than preset flow value, control
Device 140 controls the inclination angle that executing agency adjusts valve plate 112, so that the inclination angle of valve plate 112 becomes smaller, so as to control plunger
The flow-reduction of pump, in the case where current flow value is less than preset flow value, controller 140 controls executing agency and adjusts
The inclination angle of valve plate 112 increases so that the inclination angle of valve plate 112 becomes larger so as to control the flow of plunger pump, so as to
Realize the continuous adjustment to the inclination angle of valve plate 112 in the process of work, the final stabilization for realizing plunger pump discharge.
Optionally, in the present embodiment, executing agency includes:
Piston/cylinder 160 and piston piece 163, piston piece 163 are at least partially disposed in piston/cylinder 160, piston piece 163
Piston/cylinder 160 is divided into the first accommodating chamber 161 and the second accommodating chamber 162, piston piece 163 and the sliding of piston/cylinder 160 connect
It connects, cylinder body and plunger pump ontology 110 connect, and piston piece 163 and valve plate 112 connect.
Using the relative motion between piston/cylinder 160 and piston piece 163, may be implemented in non-on valve plate 112
The distance between one position of the heart and plunger pump ontology 110, so as to control the inclination angle of valve plate 112.
Also, the first accommodating chamber 161 is connected to outflow pipeline 111.
Also, executing agency further includes first pipe 171 and second pipe 172, and the both ends of first pipe 171 are respectively with
Two accommodating chambers 162 and outflow pipeline 111 are connected to, and the both ends of second pipe 172 are connected to accommodating chamber and external environment respectively.
At work, the first accommodating chamber 161 remains the oil pressure in outflow pipeline 111, in the first accommodating chamber 161
Oil pressure keep more constant state, and the second accommodating chamber 162 selectively with first pipe 171 and second pipe 172
Connection, when the second accommodating chamber 162 is connected to first pipe 171, the oil pressure in first pipe 171 is accommodated supplied to second
In chamber 162, the oil pressure in the second accommodating chamber 162 can be made to improve, so that piston piece 163 is towards close to valve plate 112
Direction movement so that the inclination angle of valve plate 112 becomes smaller, and be connected in the second accommodating chamber 162 with first pipe 171
When, the oil in the second accommodating chamber 162 can be flowed out by second pipe 172, so that the oil pressure in the second accommodating chamber 162
It reduces, so that piston piece 163 is directed away from the direction movement of valve plate 112, so that valve plate 112
Inclination angle becomes larger.
Therefore, it when the present flow rate in outflow pipeline 111 is higher, is connected to by control first pipe 171, and
So that second pipe 172 is closed, so as to realize the inclination angle for reducing valve plate 112, the flow of outflow pipeline 111 is reduced；?
When present flow rate in outflow pipeline 111 is lower, it is closed by control first pipe 171, and make second pipe 172
Connection may be implemented the inclination angle for improving valve plate 112, improve the flow of outflow pipeline 111.It, can be at work
Realize the dynamic equilibrium between the flow and preset flow in outflow pipeline 111.
In the present embodiment, executing agency further includes control valve 150, control valve 150 respectively with first pipe 171 and
The connection of two pipelines 172, control valve 150 and the electrical connection of controller 140 are to receive the instruction of controller 140 and according to controller 140
Instruction control first pipe 171 and second pipe 172 be connected to or closing.
The control to control valve 150 is realized using controller 140, and the reaction of entire control system can be made more to accelerate
Victory, and it is more intelligent, artificial participation can be reduced, integrally-regulated precision is improved.
Optionally, in the present embodiment, it is connected between piston piece 163 and valve plate 112 by piston rod 164, piston rod
164 run through piston/cylinder 160, and piston rod 164 and piston/cylinder 160 are slidably connected, the glide direction and piston piece of piston rod 164
163 glide direction is identical, and piston rod 164 and piston/cylinder 160 are tightly connected.
The valve plate outside piston piece 163 and piston/cylinder 160 in piston/cylinder 160 may be implemented using piston rod 164
Connection between 112, the movement that the piston piece 163 in piston/cylinder 160 may be implemented are transmitted to outside piston/cylinder 160, thus
It needs to be tightly connected between piston rod 164 and piston/cylinder 160, reduces the leakage of the oil pressure in the first accommodating chamber 161.
Optionally, in the present embodiment, it is connected between piston rod 164 and piston/cylinder 160 by shaft seal.
Using shaft seal, while the sealed connection between piston rod 164 and piston/cylinder 160 may be implemented, also not
Influence whether the relative motion between piston rod 164 and piston/cylinder 160.
Since shaft seal is sealing device commonly used in the prior art, use of the those skilled in the art to shaft seal
Mode and working principle are all very known, therefore repeat no more.
Optionally, in the present embodiment, the edge placement of piston rod 164 and valve plate 112 is rotatablely connected.
The position connected between piston rod 164 and valve plate 112 can be adjusted according to practical situation, it is only necessary to living
Piston rod 164 does not can be realized to matching in the center of valve plate 112 in the position connected between stopper rod 164 and valve plate 112
The control at 112 inclination angle of flow table.
And the link position between piston rod 164 and valve plate 112 is arranged in the edge placement of valve plate 112, thus
Torque between piston rod 164 and valve plate 112 is smaller, and the lesser movement of piston rod 164 can be transmitted to valve plate 112
On, cause the lesser movement of piston rod 164 can not without larger due to the torque between piston rod 164 and valve plate 112
It is passed, the control between piston rod 164 and valve plate 112 can be made more accurate.
Optionally, in the present embodiment, control valve 150 is set as two-position three way switch valve.
Specifically, a connector in two-position three way switch valve and the connection of the second accommodating chamber 162, and with this connector
Two connectors being oppositely arranged are connected to first pipe 171 and second pipe 172 respectively, so as to realize selectively
Second accommodating chamber 162 is connected to first pipe 171 or second pipe 172.
Optionally, in the present embodiment, control valve 150 is high-speed electromagnetic valve.
Using high-speed electromagnetic valve, the quick response of the instruction issued to controller 140 may be implemented, so as to realize more
The fast change to 112 inclination angle of valve plate is conducive to the precision for improving control.
It optionally, in the present embodiment, further include fuel tank 180, separate accommodating chamber on fuel tank 180 and second pipe 172
One end connection.
When second pipe 172 is connected to, the second accommodating chamber 162 is connected to fuel tank 180, can be by the second accommodating chamber
Oil in 162 imported into storage in fuel tank 180 and utilizes again.
Optionally, in the present embodiment, plunger pump is connected to fuel tank 180, and fuel tank 180 is plunger oil pump feed.
Plunger pump and second pipe 172 share a mailbox, and the interior oil flowed out of second pipe 172 can be allowed to be column
Plug pump is utilized, and utilization efficiency is improved.
Optionally, in the present embodiment, controller 140 is PLC or single-chip microcontroller.
PLC or single-chip microcontroller are control component commonly used in the prior art, also more convenient when in use, this
Field technology people can know its mode used.
The working principle of digital constant flow inclined shaft plunger pump 100 provided in this embodiment is when in use, to utilize
A flow value is first set in controller 140, and then the flow in effuser road 111 is carried out using flow sensor 120
Measurement, and current flow value is sent in controller 140, controller 140 is to current flow value and preset flow value
It is compared, in the case where current flow value is greater than preset flow value, controller 140 controls executing agency and adjusts flow
The inclination angle of disk 112, so that the inclination angle of valve plate 112 becomes smaller, so as to control the flow-reduction of plunger pump, in current flow
In the case that value is less than preset flow value, controller 140 controls the inclination angle that executing agency adjusts valve plate 112, so that flow
The inclination angle of disk 112 becomes larger, and increases so as to control the flow of plunger pump, so as to realize in the process of work to flow
The continuous adjustment at the inclination angle of disk 112, the final stabilization for realizing plunger pump discharge.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of digital constant flow inclined shaft plunger pump characterized by comprising
Plunger pump, the plunger pump include plunger pump ontology, outflow pipeline and valve plate, the outflow pipeline and the flow
Disk is connected with the plunger pump ontology respectively；
Flow sensor, the flow sensor are connected with the outflow pipeline, and the flow sensor is for detecting the stream
Out in pipeline liquid flow；
Executing agency, one end of the executing agency are connected with the plunger pump ontology, the other end of the executing agency and institute
Valve plate connection is stated, the executing agency is used to control the inclination angle of the valve plate；
Controller, the controller are connected with the flow sensor and the executing agency respectively, and the controller is used for
It receives the data on flows of the flow sensor and the executing agency is controlled according to the data on flows and move.
2. digital constant flow inclined shaft plunger pump according to claim 1, which is characterized in that the executing agency includes:
Piston/cylinder and piston piece, the piston piece are at least partially disposed in the piston/cylinder, and the piston piece will be described
Piston/cylinder is divided into the first accommodating chamber and the second accommodating chamber, and the piston piece and the piston/cylinder are slidably connected, the cylinder
Body is connected with the plunger pump ontology, and the piston piece is connected with the valve plate；
First accommodating chamber is connected to the outflow pipeline；
First pipe, the both ends of the first pipe are connected to second accommodating chamber and the outflow pipeline respectively；
Second pipe, the both ends of the second pipe are connected to the accommodating chamber and external environment respectively；
Control valve, the control valve are connected with the first pipe and the second pipe respectively, the control valve and described
Controller electrical connection is to receive the instruction of the controller and control the first pipe and institute according to the instruction of the controller
State the connection or closing of second pipe.
3. digital constant flow inclined shaft plunger pump according to claim 2, which is characterized in that the piston piece and described match
It is connected between flow table by piston rod, the piston rod runs through the piston/cylinder, and the piston rod and the piston/cylinder are sliding
Dynamic connection, the glide direction of the piston rod is identical with the glide direction of the piston piece, the piston rod and the piston cylinder
Body is tightly connected.
4. digital constant flow inclined shaft plunger pump according to claim 3, which is characterized in that the piston rod and the work
It is connected between plug cylinder body by shaft seal.
5. digital constant flow inclined shaft plunger pump according to claim 3, which is characterized in that the piston rod and described match
The edge placement of flow table is rotatablely connected.
6. digital constant flow inclined shaft plunger pump according to claim 2, which is characterized in that the control valve is set as two
Position three-way cock valve.
7. digital constant flow inclined shaft plunger pump according to claim 6, which is characterized in that the control valve is high speed electricity
Magnet valve.
8. digital constant flow inclined shaft plunger pump according to claim 2, which is characterized in that it further include fuel tank, the oil
Case is connected to one end on the second pipe far from the accommodating chamber.
9. digital constant flow inclined shaft plunger pump according to claim 8, which is characterized in that the plunger pump and the oil
Case connection, the fuel tank are the plunger oil pump feed.
10. digital constant flow inclined shaft plunger pump according to claim 1, which is characterized in that the controller be PLC or
Person's single-chip microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811165880.2A CN109139409A (en) | 2018-09-30 | 2018-09-30 | Digital constant flow inclined shaft plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811165880.2A CN109139409A (en) | 2018-09-30 | 2018-09-30 | Digital constant flow inclined shaft plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109139409A true CN109139409A (en) | 2019-01-04 |
Family
ID=64810324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811165880.2A Withdrawn CN109139409A (en) | 2018-09-30 | 2018-09-30 | Digital constant flow inclined shaft plunger pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN109139409A (en) |
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|---|---|---|---|---|
| EP0044518A1 (en) * | 1980-07-23 | 1982-01-27 | Wolfgang Prof. Dr.-Ing. Backé | Displacement control system for a variable displacement pump |
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| CN105386953A (en) * | 2015-12-25 | 2016-03-09 | 上海交通大学 | Digital flow-distribution constant-flow radial plunger pump |
| CN105673373A (en) * | 2016-02-18 | 2016-06-15 | 西北工业大学 | Constant-pressure variable axial plunger pump with adjustable zero load flow |
| CN106286435A (en) * | 2016-08-30 | 2017-01-04 | 力源液压（苏州）有限公司 | A kind of digital Variable plunger pump and control method |
| CN106762503A (en) * | 2016-12-16 | 2017-05-31 | 上海交通大学 | Digital distribution and speed governing type low speed axial plunger pump |
| CN208966500U (en) * | 2018-09-30 | 2019-06-11 | 杭州力龙液压有限公司 | Digital constant flow inclined shaft plunger pump |
-
2018
- 2018-09-30 CN CN201811165880.2A patent/CN109139409A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0044518A1 (en) * | 1980-07-23 | 1982-01-27 | Wolfgang Prof. Dr.-Ing. Backé | Displacement control system for a variable displacement pump |
| DE4017029A1 (en) * | 1990-05-26 | 1991-11-28 | Delmag Maschinenfabrik | Hydro-rammer with striker body - incorporates axial piston pump to activate drop body lift cylinder |
| EP0736708A1 (en) * | 1995-04-06 | 1996-10-09 | Brueninghaus Hydromatik Gmbh | Device for adjustment of the delivery rate of a hydraulic pump |
| CN105386953A (en) * | 2015-12-25 | 2016-03-09 | 上海交通大学 | Digital flow-distribution constant-flow radial plunger pump |
| CN105673373A (en) * | 2016-02-18 | 2016-06-15 | 西北工业大学 | Constant-pressure variable axial plunger pump with adjustable zero load flow |
| CN106286435A (en) * | 2016-08-30 | 2017-01-04 | 力源液压（苏州）有限公司 | A kind of digital Variable plunger pump and control method |
| CN106762503A (en) * | 2016-12-16 | 2017-05-31 | 上海交通大学 | Digital distribution and speed governing type low speed axial plunger pump |
| CN208966500U (en) * | 2018-09-30 | 2019-06-11 | 杭州力龙液压有限公司 | Digital constant flow inclined shaft plunger pump |
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