CN108343574A - A kind of high pressure variable plunger-type fuel pump system and device - Google Patents
A kind of high pressure variable plunger-type fuel pump system and device Download PDFInfo
- Publication number
- CN108343574A CN108343574A CN201810230577.XA CN201810230577A CN108343574A CN 108343574 A CN108343574 A CN 108343574A CN 201810230577 A CN201810230577 A CN 201810230577A CN 108343574 A CN108343574 A CN 108343574A
- Authority
- CN
- China
- Prior art keywords
- plunger
- oil
- valve
- assembly
- pump body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/202—Externally-operated valves mounted in or on the actuator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/001—Servomotor systems with fluidic control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
A kind of high pressure variable plunger-type fuel pump system and device, including plunges pump body, motor in plunges pump body side and flange assembly are set, hydraulic cylinder in the plunges pump body other side is set and actuating mechanism assembly and oil bag and pressing plate assembly in plunges pump body bottom are set, described its circumferential position of plunges pump body upper edge offers one group of plunger hole, it is equipped with assembly for plunger in the plunger hole, the assembly for plunger is arranged in pairs in relative position, and the size dimension of the assembly for plunger of relative position is identical, and the assembly for plunger size dimension of adjacent position is different；The assembly for plunger includes plunger carrier, be equipped with plunger carrier side T-type plunger and be equipped with cunning switch in the plunger carrier other side, be arranged with Reducing screw spring on the T-type plunger；Eccentric axle assembly is equipped in the plunges pump body, the invention has the advantages that the device performance is stable, work efficiency is high, safety is flexible and convenient during light and handy and use small, simple in structure.
Description
Technical field
The present invention relates to plunger-type fuel pump technical fields, and in particular to a kind of high pressure variable plunger-type fuel pump system and device.
Background technology
Oil pump device refers to taking power from the power takeoff of engine or gearbox by oil pump, then again by oil pump to holding
The device of hydraulic power is transmitted in row mechanism.The running quality of oil pump device is related to the quality of executing agency's execution action.Once
The operating mechanism design of oil pump device is unreasonable, just will appear some phenomena of the failure：Detonation, oil leak, pressure transmission component breakage,
Oil pressure generating means is stuck or disengages.After a certain parts break down in oil pump assy, it is most likely that related mating zero
Part brings damage, or related auxiliary component structure the risk that breaks down of irrationality more oil pump mechanism, one
Determine to increase maintenance cost in degree and changes part expense.Some oil pumps currently on the market are under impact loading, it is easy to
Unstability, while causing the imbalance of eccentric shaft, centrifugal intertia force effect is generated, the uneven abrasion of eccentric shaft can be caused, caused
It is bolted the phenomenon that fastening point loosens, brings oil pump pump oil pressure inadequate, the unfavorable effects such as ram travel shortening.At present
The plunger system of high-pressure oil pump be usually three assembly for plunger, the size dimension of each plunger parts is consistent, this plunger
Harmonic effect unobvious, not high for oil feed pressure, performance is unstable, cannot be satisfied provide high pressure oil requirement therefore compel to be essential
Develop a kind of stable, efficient, reliable high pressure harmonic wave plunger-type fuel pump system and device of performance.
Invention content
In order to solve the problems in the existing technology, the present invention provides a kind of high pressures that reasonable for structure, performance is stablized
Variable piston oil pump systems device.
Technical scheme is as follows：
A kind of high pressure variable plunger-type fuel pump system and device, which is characterized in that including plunges pump body, be arranged in plunges pump body side
Motor and flange assembly are arranged in the hydraulic cylinder and actuating mechanism assembly of the plunges pump body other side and setting in plunges pump body bottom
Oil bag and pressing plate assembly, described its circumferential position of plunges pump body upper edge offers one group of plunger hole, cooperation in the plunger hole
Assembly for plunger is set, the assembly for plunger is arranged in pairs in relative position, and the assembly for plunger size of relative position is identical,
And the assembly for plunger size of adjacent position is different；The assembly for plunger includes plunger carrier, is equipped in plunger carrier
The T-type plunger of side and it is equipped with cunning switch in the plunger carrier other side, Reducing screw is arranged on the T-type plunger
Spring；It is equipped with eccentric axle assembly in the plunges pump body, is driven between the bias axle assembly and motor and flange assembly
Connection, and drive assembly for plunger to move back and forth under the drive of eccentric axle assembly, and the oil pressure of high pressure is generated, to hydrodynamic pressure
Cylinder works with actuating mechanism assembly.
A kind of high pressure variable plunger-type fuel pump system and device, which is characterized in that the plunges pump body uses square,
Four plunger holes are opened up on its circumferential four face, 90 ° of distributions of adjacent presentation, the installation of described plunges pump body one end between them
It is opened up on face there are four oil outlet, and each oil outlet position is correspondingly arranged oil road, is equipped on the oil road unidirectional
Valve assembly；The oil road is being equipped with trepanning plug screw, and the mounting surface of trepanning plug screw and plunges pump body one end close to oil outlet
Concordantly；The oil road is internally provided with multiple tracks step, and the arranged direction of oil road is perpendicular to the axis direction of plunger carrier；Institute
It states and is further opened with oil return inlet, regulating valve drain tap, safety valve drain tap and back oil road work on the mounting surface of plunges pump body side
Skill hole；Eccentric shaft mounting hole is offered on the mounting surface of the plunges pump body other side；Positioned at left and right on the plunges pump body
The position of two plunger holes opens up two oil return holes respectively, and described two oil return holes are disposed adjacent to the position of eccentric shaft mounting hole
Place；Plunger hole on each side of the plunges pump body nearby opens up two mounting holes, and is opened up on one side wherein
There are one tank filler sleeves；Four bolts hole have been opened up on four Angle Positions of the plunges pump body, and bolt is equipped in the bolt hole,
And plunges pump body is pruning one section of material on the direction that bolt is installed so that effective pressure-bearing length of bolt on plunges pump body
Shorten.
A kind of high pressure variable plunger-type fuel pump system and device, which is characterized in that close to oil on the plunger carrier
Slide switch side is equipped with strainer, is equipped with snap ring on the outside of the strainer, positioned at the position of plunger hole on the plunges pump body
Place's fixed setting oil cap, and O-ring seal is equipped on oil cap；The plunger carrier is equipped with oil inlet tap hole, spool is pacified
Fill hole, plunger carrier oil outlet, plunger carrier oil-feed tank, strainer annular groove, plunger mounting hole and plunger mat, the oil inlet shunting
Hole is connected to setting with plunger carrier oil outlet, and the strainer annular groove is matched with snap ring, the plunger mounting hole and T-type plunger
It matches；The T-type plunger includes plunger rod and is arranged step-like pied geometry in plunger rod lower part, the Reducing screw bullet
The central diameter of spring be in graded profile, shape be in " horn-like " structure, the Reducing screw spring one end with it is step-like on T-type plunger
Pied geometry limit cooperation, the other end coordinate with plunger mat limit；The cunning switch is arranged between plunger carrier and strainer,
It includes conical surface spool, is set on conical surface spool spring, the dome piece being equipped on conical surface spool, the spring one
End coordinates with the limit of conical surface spool one end, and the other end coordinates with the limit of dome piece, is equipped on the conical surface spool for justifying
The butterfly snap ring of cover plate limit；The conical surface spool is equipped with spool mounting hole.
A kind of high pressure variable plunger-type fuel pump system and device, which is characterized in that the bias axle assembly includes bias
Axis and the sealing device being arranged on eccentric shaft, needle bearing, described eccentric shaft one end connect plunges pump body by needle bearing
Inside, the other end are connected with motor with flange assembly, and the sealing device includes screw plug and oil sealing, and passes through sealing device and column
It is sealed between plug carrier.
A kind of high pressure variable plunger-type fuel pump system and device, which is characterized in that the unidirectional valve assembly includes unidirectional
Valve body, the check valve oil guide bolt being arranged on check valve valve body, be arranged check valve valve body the first O-ring seal, set
Set the second O-ring seal on check valve oil guide bolt, the capillary O-ring seal being arranged on check valve valve body, setting exist
Oil Guide in check valve body base is arranged in resetting spring in one-way valve body, the big steel ball being arranged below resetting spring
Mouth, be arranged check valve body top valve body oil outlet and be arranged at the valve body center of check valve valve body top center position
Hole；The big steel ball uses hemispherical steel ball, fluid to enter check valve valve body from Oil Guide mouth, under the action of oil liquid pressure, push away
Big steel ball pressed home spring is moved, fluid is made to be flowed out along valve body oil outlet.
A kind of high pressure variable plunger-type fuel pump system and device, which is characterized in that the hydraulic cylinder and executing agency are total
At including hydraulic cylinder and being connected to the executing agency of hydraulic cylinder side, the hydraulic cylinder be equipped with threaded hole, hydraulic cylinder fuel feed hole,
Hydraulic cylinder oil return hole, regulating valve mounting hole, safety valve mounting hole, hydraulic cylinder back oil road, the first drain tap and the second drain tap.
A kind of high pressure variable plunger-type fuel pump system and device, which is characterized in that be equipped in the safety valve mounting hole
Safety valve complement, the safety valve complement include that safe valve oil blocks up spring base, safety valve spring, steel ball support and safety valve steel ball,
The safe valve oil blocks up spring base and is fixed on hydraulic cylinder, and the safety valve spring is connected to safe valve oil and blocks up spring base, described
Steel ball support is connected to the end of safety valve spring, and the safety valve steel ball is connected to steel ball support, the safety valve steel ball liquid for plugging
The first drain tap on cylinder pressure, when the oil pressure of output is more than the elastic force of safety valve spring, safety valve spring is compressed, safety valve
Steel ball is detached from the first drain tap, and the fluid in hydraulic cylinder is flowed out from the first drain tap.
A kind of high pressure variable plunger-type fuel pump system and device, which is characterized in that be equipped in the regulating valve mounting hole
Regulating valve assembly, the regulating valve assembly include regulating valve oil seal spring seat, adjust valve spring and regulating valve cone forming head, the tune
Section valve oil envelope spring base is fixed on hydraulic cylinder, and the adjusting valve spring is connected to regulating valve oil seal spring seat, the regulating valve
Conical head is connected to adjusting valve spring.
A kind of high pressure variable plunger-type fuel pump system and device, which is characterized in that the motor includes with flange assembly
Motor, ring flange, king-bolt and stove bolt, motor are connect by stove bolt with ring flange, and pass through ring flange and big spiral shell
Bolt is fixed on the mounting surface of plunges pump body, and the motor uses DC brushless motor, and is used lithium battery or directly inserted and hand over
Flow power supply power supply driving.
A kind of high pressure variable plunger-type fuel pump system and device, which is characterized in that the oil bag includes with pressing plate assembly
Oil bag and oil bag pressing plate, the oil bag are connected to plunges pump body, the oil bag by oil bag pressing plate fix with plunges pump body on, and
It is connected and fixed with lock-screw.
The beneficial effects of the invention are as follows：
1）On plunges pump body circumferentially 90 ° setting four assembly for plunger, the assembly for plunger size of wherein relative position is identical, adjacent
The assembly for plunger size of position is different, due to the sequencing of movement and the variation of pressure peak, forms the harmonic wave effect of pressure
It answers, the supply of variable quantity and pressure fluid is provided, the requirement of different driving power and the speed of service is can adapt to, improves the general of the device
Property and operation stability.
2）Assembly for plunger includes plunger carrier, be equipped with plunger carrier side T-type plunger and be equipped in column
Fill in the cunning switch of the carrier other side, cunning switch includes conical surface spool, the spring that is set on conical surface spool, is equipped with
Dome piece on conical surface spool, the movement of T shape piston reciprocations so that fluid is inhaled into plunger carrier by cunning switch, and passes through
Cunning switch extrudes fluid from plunger carrier oil outlet, to improve the output oil liquid pressure of the device, ensure that the dress
The operation is stable set it is efficient.
3）The device performance is stable, work efficiency is high, the flexible side of safety during light and handy and use small, simple in structure
Just.
Description of the drawings
Fig. 1 is overall structure of the explosion figure of the present invention；
Fig. 2 is the plunges pump body dimensional structure diagram of the present invention；
Fig. 3 is plunges pump body end structure illustration of the present invention；
Fig. 4 is the faces E-E of the present invention cross-sectional view；
Fig. 5 is plunges pump body side structure schematic diagram of the present invention；
Fig. 6 is the faces F-F of the present invention cross-sectional view；
Fig. 7 is plunges pump body tank filler sleeve structural schematic diagram of the present invention；
Fig. 8 is assembly for plunger overall structure of the explosion figure of the present invention；
Fig. 9 is the cunning switch structure diagram of assembly for plunger of the present invention；
Figure 10 is the plunger mat structural schematic diagram of plunger carrier of the present invention；
Figure 11 is plunger carrier dimensional structure diagram of the present invention；
Figure 12 is check valve assembly structure schematic diagram of the present invention
Figure 13 is the faces B-B of the present invention cross-sectional view；
Figure 14 is oil bag of the present invention and pressing plate assembly structure schematic diagram；
Figure 15 is present hydraulic cylinder dimensional structure diagram；
Figure 16 is present hydraulic cylinder end structure illustration；
Figure 17 is the faces D-D of the present invention cross-sectional view；
Figure 18 is present hydraulic cylinder side structure schematic diagram；
Figure 19 is the faces C-C of the present invention cross-sectional view；
In figure：1- assembly for plunger, 11-T type plungers, 12- Reducing screw springs, 13- plunger carriers, 1301- spool mounting holes,
1302- strainer annular grooves, 1303- plunger carrier oil outlets, 1304- plunger carrier oil-feed tanks, 1305- oil inlet tap holes, 1306-
Plunger mat, 1307- plunger mounting holes, the cunning switches of 14-, 1401- conical surface spools, 1402- springs, 1403- dome pieces, 1404-
Butterfly snap ring, 15- strainers, 16- snap rings, 17-O type sealing rings, 18- oil caps, the unidirectional valve assemblies of 2-, 201- check valve Oil Guide spiral shells
Bolt, the second O-ring seals of 202-, 203- valve body oil outlets, 204- check valve valve bodies, 205- capillary O-ring seals, 206- Oil Guides
Mouth, the first O-ring seals of 207-, the big steel balls of 208-, 209- resetting springs, 210- valve body centre bores, 3- motors and flange assembly,
4- oil bags and pressing plate assembly, 41- oil bags, 42- oil bag pressing plates, 5- bias axle assemblies, 6- hydraulic cylinders and actuating mechanism assembly, 61-
Hydraulic cylinder, 6101- threaded holes, 6102- hydraulic cylinder fuel feed holes, 6103- hydraulic cylinder oil return holes, 6104- regulating valve mounting holes,
6105- safety valve mounting holes, 6106- hydraulic cylinder back oil roads, the first drain taps of 6107-, the second drain taps of 6108-, 7- regulating valves
Assembly, 8- safety valve complements, 9- plunges pump bodies, 901- oil outlets, 902- back oil road fabrication holes, 903- regulating valve drain taps,
904- oil return inlets, 905- bolts hole, 906- safety valve drain taps, 907- oil return holes, 908- plunger holes, 909- tank filler sleeves,
910- oil roads.
Specific implementation mode
Below in conjunction with Figure of description, the invention will be further described.
As shown in figures 1-19, a kind of high pressure variable plunger-type fuel pump system and device, including assembly for plunger 1, T-type plunger 11, change
Diameter helical spring 12, plunger carrier 13, spool mounting hole 1301, strainer annular groove 1302, plunger carrier oil outlet 1303, plunger
Carrier oil-feed tank 1304, oil inlet tap hole 1305, plunger mat 1306, plunger mounting hole 1307, cunning switch 14, conical surface spool
1401, spring 1402, dome piece 1403, butterfly snap ring 1404, strainer 15, snap ring 16, O-ring seal 17, oil cap 18, check valve
Assembly 2, check valve oil guide bolt 201, the second O-ring seal 202, valve body oil outlet 203, check valve valve body 204, capillary are O-shaped
Sealing ring 205, Oil Guide mouth 206, the first O-ring seal 207, big steel ball 208, resetting spring 209, valve body centre bore 210, motor
It is total with flange assembly 3, oil bag and pressing plate assembly 4, oil bag 41, oil bag pressing plate 42, eccentric axle assembly 5, hydraulic cylinder and executing agency
At 6, hydraulic cylinder 61, threaded hole 6101, hydraulic cylinder fuel feed hole 6102, hydraulic cylinder oil return hole 6103, regulating valve mounting hole 6104, peace
Full valve mounting hole 6105, hydraulic cylinder back oil road 6106, the first drain tap 6107, the second drain tap 6108, regulating valve assembly 7, peace
Full valve assembly 8, plunges pump body 9, oil outlet 901, back oil road fabrication hole 902, regulating valve drain tap 903, oil return inlet 904, spiral shell
Keyhole 905, safety valve drain tap 906, oil return hole 907, plunger hole 908, tank filler sleeve 909 and oil road 910.
Assembly for plunger 1 is equipped with four sets, is packed into four circumferentially uniformly distributed plunger holes 908 of plunges pump body 9, four plunger holes
908 make 90 ° of circumferential distributions, 1 same size of assembly for plunger of relative position, the column of adjacent position on plunges pump body 9
It is different to fill in 1 size of assembly, due to the sequencing of movement and the variation of pressure peak, forms the harmonic effect of pressure, enhances
And improve oil pressure supply；Four oil outlets 901 are opened up on the mounting surface of one end of plunges pump body 9, each oil outlet 901 is right
Oil road 910 should be set, unidirectional valve assembly 2 is mounted on oil road 910, and positioned at 910 outermost of oil road, i.e. oil outlet
It is mounted with that trepanning plug screw, trepanning plug screw are concordant with one end mounting surface of plunges pump body 9 at 901；910 inside of oil road has multiple tracks
Step, the arranged direction of oil road 910 is just perpendicular to the axis direction of plunger carrier 13；Left and right two columns of plunges pump body 9
Two oil return holes 907 are opened up on consent 908, two oil return holes 907 are disposed adjacent on the position of eccentric shaft mounting hole, plunger
Plunger hole 908 on each side of the pump housing 9 nearby opens up two and is used for 18 fixed mounting hole of oil cap, and side wherein
A tank filler sleeve 909 is opened up；Multiple oilholes are also opened up on the mounting surface at 9 oil outlet of plunges pump body, 901 end, including oil return enters
Mouth 904, regulating valve drain tap 903, safety valve drain tap 906 and back oil road fabrication hole 902.Four Angle Positions of plunges pump body 9
On opened up four bolts hole 905, bolt installation direction on truncated section material so that bolt has on plunges pump body 13
Pressure-bearing length is imitated to shorten.
Assembly for plunger 1 include plunger carrier 13, be equipped with 13 side of plunger carrier T-type plunger 11 and be equipped with
Cunning switch 14 in 13 other side of plunger carrier is arranged with Reducing screw spring 12 on T-type plunger 11；On plunger carrier 13
It is equipped with strainer 15 close to 14 side of cunning switch, 15 outside of the strainer is equipped with snap ring 16, positioned at column on plunges pump body 9
Oil cap 18 is fixedly installed at the position of consent 908, and is equipped with O-ring seal 17 on oil cap 18；On the plunger carrier 13
Equipped with oil inlet tap hole 1305, spool mounting hole 1301, plunger carrier oil outlet 1303, plunger carrier oil-feed tank 1304, strainer
Annular groove 1302, plunger mounting hole 1307 and plunger mat 1306, oil inlet tap hole 1305 are connected to plunger carrier oil outlet 1303
Setting, strainer annular groove 1302 are matched with snap ring 16, and plunger mounting hole 1307 is matched with T-type plunger 11；T-type plunger 11 wraps
It includes plunger rod and the step-like pied geometry in plunger rod lower part is set, plunger rod surface has carried out heat treatment process so that table
High rigidity is presented and wear-resisting performance in face, and the central diameter of Reducing screw spring 12 is in graded profile, and shape is in " horn-like " structure,
12 one end of Reducing screw spring coordinates with the step-like pied geometry limit on T-type plunger 11, and the other end is limited with plunger mat 1306
Position cooperation；Cunning switch 14 is arranged between plunger carrier 13 and strainer 15 comprising conical surface spool 1401 is set in conical valve
Spring 1402 on core 1401, the dome piece 1403 being equipped on conical surface spool 1401,1402 one end of spring and conical valve
The limit cooperation of 1401 one end of core, the other end coordinate with the limit of dome piece 1403, are equipped with for dome on conical surface spool 1401
The butterfly snap ring 1404 that piece 1403 limits；The conical surface spool 1401 is equipped in spool mounting hole 1301.Fluid from into
Oil discharge orifice 1305 enters plunger carrier 13, is flowed out from plunger carrier oil outlet 1303；Strainer 15, snap ring 16, O-ring seal 17
And oil cap 18 forms sealing system together, plunger rod can slide in plunger mounting hole 1307, and T shapes plunger 11 is in eccentric shaft
Movement drives lower generate to move back and forth, and taper valve core 1401 also generates reciprocating motion, when T shape plunger downlinks, plunger axial
There is certain vacuum degree, 1401 downlink of taper valve core, fluid to be inhaled into plunger carrier 13 by cunning switch 14 in carrier 13,
When T shape plunger uplinks, also uplink, taper valve core 1401 are bonded taper valve core 1401 with the mating surface in plunger carrier 13, this
When, fluid is extruded by T shapes plunger 11 from the plunger carrier oil outlet 1303 of plunger carrier 13, and oil pressure is formed.
Motor and flange assembly 3 include the components such as motor, ring flange and bolt, with stove bolt mounting flange with it is electronic
Machine, direct current generator are fixed on by ring flange and king-bolt on the mounting surface of 9 one end of plunges pump body, and motor uses brush DC
Motor can use lithium battery or directly insert AC power for electric drive, the motor shaft of motor and eccentric shaft by interior hexagonal with outside
The connection relation of hexagonal is sequentially connected together, and under the drive of motor, eccentric shaft generates rotary motion and drives assembly for plunger 1
Generate reciprocating motion.
Unidirectional valve assembly 2 includes check valve valve body 204, the check valve oil guide bolt being arranged on check valve valve body 204
201, be arranged check valve valve body 204 the first O-ring seal 207, be arranged on check valve oil guide bolt 201 it is second O-shaped
Sealing ring 202, the capillary O-ring seal 205 being arranged on check valve valve body 204, the reset being arranged in check valve valve body 204
Spring 209, the big steel ball 208 being arranged below resetting spring 209, be arranged 204 bottom of check valve valve body Oil Guide mouth 206,
Valve body oil outlet 203 at the top of check valve valve body 204 is set and the valve body in 204 top center position of check valve valve body is set
Centre bore 210；The big steel ball 208 uses hemispherical steel ball, and oil enters check valve valve body 204 from Oil Guide mouth 206, in fluid pressure
Under the action of power, 208 pressed home spring 209 of big steel ball, oil is pushed to be flowed out along valve body oil outlet 203, after fluid outflow, pressure
Power is reduced, under the return action of resetting spring 209, the return again of big steel ball 208, it is ensured that the flow direction of fluid.
Oil bag includes oil bag and oil bag pressing plate with pressing plate assembly 4, and oil bag is connected to plunges pump body 9, and the oil bag passes through oil
Bag pressing plate is fixed on plunges pump body 9, and lock-screw is used in combination to be connected and fixed.
Eccentric axle assembly 5 includes eccentric shaft, sealing device and needle bearing, and described eccentric shaft one end is connected by needle bearing
9 bottom of plunges pump body is connect, the other end is connected with motor with flange assembly 3, and needle bearing plays the role of certain reduction friction,
Eccentric shaft generates rotary motion driving assembly for plunger and generates reciprocating motion under motor drive；It is additionally provided with screw plug on the eccentric shaft
And oil sealing, and by being sealed between screw plug and oil sealing and plunger carrier 13.
Regulating valve assembly 7 and safety valve complement 8 are provided on hydraulic cylinder 61.Safety valve complement 8 includes that safe valve oil blocks up bullet
Spring abutment, safety valve spring, steel ball support and safety valve steel ball.Safe valve oil blocks up spring base and is fixed on hydraulic cylinder 61, safety valve
Spring is connected to safe valve oil and blocks up spring base.Steel ball support is connected to the end of safety valve spring, and safety valve steel ball is connected to steel ball
Support, safety valve steel ball block the safety valve drain tap on hydraulic cylinder 61, when the oil pressure of motor assembly output is more than safety valve spring
Elastic force when, safety valve spring is compressed, and safety valve steel ball is detached from the first drain tap 6107, and the fluid in hydraulic cylinder 61 is from first
Drain tap 6107 flows out, and the setting of safety valve effectively prevents the accident generated due to pump housing hypertonia；Regulating valve assembly 7
Including regulating valve oil seal spring seat, adjusts valve spring and regulating valve cone forming head, regulating valve oil seal spring seat are fixed on hydraulic cylinder
It on 61, adjusts valve spring and is connected to regulating valve oil seal spring seat, regulating valve cone forming head is connected to adjusting valve spring, needs to adjust oil
When pressure, then change effective flow cross-section areas by manual modulation valve door position, to change oil pressure size, when whole equipment
Operational process be held within a suitable oil pressure range, it is ensured that equipment and personnel safety.
Hydraulic cylinder and actuating mechanism assembly 6 include hydraulic cylinder 61 and the executing agency for being connected to 61 side of hydraulic cylinder, described
Hydraulic cylinder 61 be equipped with bolt hole 6101, hydraulic cylinder fuel feed hole 6102, hydraulic cylinder oil return hole 6103, regulating valve mounting hole 6104,
Safety valve mounting hole 6105 and hydraulic cylinder back oil road 6106, the hydraulic cylinder fuel feed hole 6102 are connected to hydraulic cylinder, pass through liquid
Cylinder pressure back oil road 6106 returns to hydraulic cylinder oil return hole 6103, and is connected to plunges pump body 9, to which fluid forms a circulatory system.
Threaded hole 6101, hydraulic cylinder fuel feed hole 6102, hydraulic cylinder oil return hole 6103, regulating valve mounting hole 6104 on hydraulic cylinder 61 and peace
Full valve mounting hole 6105 respectively with bolt hole 905, oil outlet 901, oil return inlet 904, the second drain tap on plunges pump body 9
6108 and first drain tap 6107 it is corresponding.
The course of work：
Motor drive bias axle assembly 5 rotates, and drives T shapes plunger 11 in plunger mounting hole 1307 by eccentric axle assembly 5
Interior reciprocating motion, while taper valve core 1401 also generates reciprocating motion, when T shape 11 downlinks of plunger, plunger carrier 13 axial
Interior to have certain vacuum degree, 1401 downlink of taper valve core, fluid is inhaled into plunger carrier 13 by cunning switch 14, when T shapes
When 11 uplink of plunger, also uplink, taper valve core 1401 are bonded taper valve core 1401 with the mating surface in plunger carrier 13, at this point,
Fluid is extruded by T shapes plunger 11 from the plunger carrier oil outlet 1303 of plunger carrier 13, into oil road 910, and by unidirectional
Entered in hydraulic cylinder 61 by hydraulic cylinder fuel feed hole 6102 after valve assembly 2, to drive executing agency to work.
Although the present invention is disclosed above by preferred embodiment, however, it is not intended to limit the invention, this any known skill
Skill person can make some changes and embellishment without departing from the spirit and scope of the present invention, therefore protection scope of the present invention is worked as
Subject to claims range claimed.
Claims (10)
1. a kind of high pressure variable plunger-type fuel pump system and device, which is characterized in that including plunges pump body（9）, be arranged in plunges pump body
（9）The motor of side and flange assembly（3）, be arranged in plunges pump body（9）The hydraulic cylinder and actuating mechanism assembly of the other side（6）And
It is arranged in plunges pump body（9）The oil bag of bottom and pressing plate assembly（4）, the plunges pump body（9）Its circumferential position of upper edge offers
One group of plunger hole（908）, the plunger hole（908）Inside it is equipped with assembly for plunger（1）, the assembly for plunger（1）In opposite position
It sets and is arranged in pairs, and the assembly for plunger of relative position（1）Size is identical, and the assembly for plunger of adjacent position（1）Size is big
Small difference；The assembly for plunger（1）Including plunger carrier（13）, be equipped in plunger carrier（13）The T-type plunger of side
（11）And it is equipped in plunger carrier（13）The cunning switch of the other side（14）, the T-type plunger（11）On be arranged with reducing
Helical spring（12）；The plunges pump body（9）Inside it is equipped with eccentric axle assembly（5）, the bias axle assembly（5）With motor with
Flange assembly（3）Between be sequentially connected, and in eccentric axle assembly（5）Drive under drive assembly for plunger（1）It moves back and forth, and produces
The oil pressure of raw high pressure, to drive hydraulic cylinder and actuating mechanism assembly（6）It works.
2. a kind of high pressure variable plunger-type fuel pump system and device according to claim 1, which is characterized in that the plunges pump body
（9）Using square, four plunger holes have been opened up on circumferential four faces（908）, 90 ° of distributions of adjacent presentation, institute between them
State plunges pump body（9）Oil outlet there are four being opened up on the mounting surface of one end（901）, and each oil outlet（901）Position corresponds to and sets
Set oil road（910）, the oil road（910）On be equipped with unidirectional valve assembly（2）；The oil road（910）Close to go out
Hydraulic fluid port（901）Place is equipped with trepanning plug screw, and trepanning plug screw and plunges pump body（9）The mounting surface of one end is concordant；The oil road
（910）It is internally provided with multiple tracks step, and oil road（910）Arranged direction perpendicular to plunger carrier（13）Axis direction；Institute
State plunges pump body（9）It is further opened with oil return inlet on the mounting surface of side（904）, regulating valve drain tap（903）, safety valve draining
Mouthful（906）And back oil road fabrication hole（902）；The plunges pump body（9）Eccentric shaft mounting hole is offered on the mounting surface of the other side；
The plunges pump body（9）On positioned at left and right two plunger holes（908）Position open up two oil return holes respectively（907）, described
Two oil return holes（907）It is disposed adjacent at the position of eccentric shaft mounting hole；The plunges pump body（9）Each side on
Plunger hole（908）It nearby opens up two mounting holes, and opens up that there are one tank filler sleeves on one side wherein（909）；The plunger
The pump housing（9）Four Angle Positions on opened up four bolts hole（905）, the bolt hole（905）It is interior to be equipped with bolt, and plunger pump
Body（9）One section of material is being pruned on the direction that bolt is installed so that plunges pump body（9）Effective pressure-bearing length of upper bolt contracts
It is short.
3. a kind of high pressure variable plunger-type fuel pump system and device according to claim 1, which is characterized in that the plunger carrier
（13）On close to cunning switch（14）Side is equipped with strainer（15）, the strainer（15）Outside is equipped with snap ring（16）, institute
State plunges pump body（9）On positioned at plunger hole（908）Position at be fixedly installed oil cap（18）, and oil cap（18）On be equipped with
O-ring seal（17）；The plunger carrier（13）It is equipped with oil inlet tap hole（1305）, spool mounting hole（1301）, plunger carry
Body oil outlet（1303）, plunger carrier oil-feed tank（1304）, strainer annular groove（1302）, plunger mounting hole（1307）And plunger mat
（1306）, the oil inlet tap hole（1305）With plunger carrier oil outlet（1303）Connection setting, the strainer annular groove
（1302）With snap ring（16）It matches, the plunger mounting hole（1307）With T-type plunger（11）It matches；The T-type plunger
（11）Including plunger rod and step-like pied geometry in plunger rod lower part is set, the Reducing screw spring（12）Central diameter be in
Graded profile, shape are in " horn-like " structure, the Reducing screw spring（12）One end and T-type plunger（11）On step-like circle
Cake structure limit cooperation, the other end and plunger mat（1306）Limit cooperation；The cunning switch（14）It is arranged in plunger carrier
（13）With strainer（15）Between comprising conical surface spool（1401）, be set in conical surface spool（1401）On spring（1402）, match
It closes and is arranged in conical surface spool（1401）On dome piece（1403）, the spring（1402）One end and conical surface spool（1401）One end
Limit cooperation, the other end and dome piece（1403）Limit cooperation, the conical surface spool（1401）On be equipped with for dome piece
（1403）The butterfly snap ring of limit（1404）；The conical surface spool（1401）With spool mounting hole（1301）It is equipped with.
4. a kind of high pressure variable plunger-type fuel pump system and device according to claim 1, which is characterized in that the eccentric shaft is total
At（5）Including eccentric shaft and the sealing device being arranged on eccentric shaft, needle bearing, described eccentric shaft one end passes through needle bearing
Connect plunges pump body（9）Inside, the other end and motor and flange assembly（3）It is connected, the sealing device includes screw plug and oil sealing,
And pass through sealing device and plunger carrier（13）Between be sealed.
5. a kind of high pressure variable plunger-type fuel pump system and device according to claim 1, which is characterized in that the check valve is total
At（2）Including check valve valve body（204）, be arranged in check valve valve body（204）On check valve oil guide bolt（201）, setting exist
Check valve valve body（204）The first O-ring seal（207）, be arranged in check valve oil guide bolt（201）On the second O-shaped sealing
Circle（202）, be arranged in check valve valve body（204）On capillary O-ring seal（205）, be arranged in check valve valve body（204）Interior
Resetting spring（209）, be arranged in resetting spring（209）The big steel ball of lower section（208）, be arranged in check valve valve body（204）Bottom
Oil Guide mouth（206）, be arranged in check valve valve body（204）The valve body oil outlet at top（203）And it is arranged in check valve valve body
（204）The valve body centre bore of top center position（210）；The big steel ball（208）Using hemispherical steel ball, fluid is from Oil Guide mouth
（206）Into check valve valve body（204）, under the action of oil liquid pressure, push big steel ball（208）Pressed home spring（209）,
Make fluid along valve body oil outlet（203）Outflow.
6. a kind of high pressure variable plunger-type fuel pump system and device according to claim 1, which is characterized in that the hydraulic cylinder with
Actuating mechanism assembly（6）Including hydraulic cylinder（61）And it is connected to hydraulic cylinder（61）The executing agency of side, the hydraulic cylinder（61）
It is equipped with threaded hole（6101）, hydraulic cylinder fuel feed hole（6102）, hydraulic cylinder oil return hole（6103）, regulating valve mounting hole（6104）、
Safety valve mounting hole（6105）, hydraulic cylinder back oil road（6106）, the first drain tap（6107）And second drain tap（6108）.
7. a kind of high pressure variable plunger-type fuel pump system and device according to claim 6, which is characterized in that the safety valve peace
Fill hole（6105）It is interior to be equipped with safety valve complement（8）, the safety valve complement（8）Spring base, safety valve bullet are blocked up including safe valve oil
Spring, steel ball support and safety valve steel ball, the safe valve oil block up spring base and are fixed on hydraulic cylinder（61）On, the safety valve spring connects
It is connected to safe valve oil and blocks up spring base, the steel ball support is connected to the end of safety valve spring, and the safety valve steel ball is connected to steel
Pearl support, the safety valve steel ball block hydraulic cylinder（61）On the first drain tap（6107）, when the oil pressure of output is more than safety valve
When the elastic force of spring, safety valve spring is compressed, and safety valve steel ball is detached from the first drain tap（6107）, hydraulic cylinder（61）Interior oil
Liquid is from the first drain tap（6107）Outflow.
8. a kind of high pressure variable plunger-type fuel pump system and device according to claim 6, which is characterized in that the regulating valve peace
Fill hole（6104）It is interior to be equipped with regulating valve assembly（7）, the regulating valve assembly（7）Including regulating valve oil seal spring seat, regulating valve bullet
Spring and regulating valve cone forming head, the regulating valve oil seal spring seat are fixed on hydraulic cylinder（61）On, the adjusting valve spring is connected to
Regulating valve oil seal spring seat, the regulating valve cone forming head are connected to adjusting valve spring.
9. a kind of high pressure variable plunger-type fuel pump system and device according to claim 1, which is characterized in that the motor and method
Blue assembly（3）Including motor, ring flange, king-bolt and stove bolt, motor is connect by stove bolt with ring flange, and is passed through
Ring flange and king-bolt are fixed on plunges pump body（9）Mounting surface on, the motor use DC brushless motor, and use lithium
Battery directly inserts AC power for electric drive.
10. a kind of high pressure variable plunger-type fuel pump system and device according to claim 1, which is characterized in that the oil bag with
Pressing plate assembly（4）Including oil bag and oil bag pressing plate, the oil bag and plunges pump body（9）Connection, the oil bag pass through oil bag pressing plate
Fixed and plunges pump body（9）On, it is used in combination lock-screw to be connected and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230577.XA CN108343574B (en) | 2018-03-20 | 2018-03-20 | High-pressure variable plunger oil pump system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230577.XA CN108343574B (en) | 2018-03-20 | 2018-03-20 | High-pressure variable plunger oil pump system device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108343574A true CN108343574A (en) | 2018-07-31 |
| CN108343574B CN108343574B (en) | 2023-09-22 |
Family
ID=62957575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810230577.XA Active CN108343574B (en) | 2018-03-20 | 2018-03-20 | High-pressure variable plunger oil pump system device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108343574B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561435A (en) * | 2020-05-28 | 2020-08-21 | 欧盾科技有限公司 | Hand-held double-tube single-connection electric hydraulic pump |
| CN113606223A (en) * | 2021-07-26 | 2021-11-05 | 浙江飞越机电有限公司 | Exhaust oiling structure of hydraulic pipe fitting machining tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201354718Y (en) * | 2009-02-25 | 2009-12-02 | 杭州萧山东方液压件有限公司 | Multi-cylinder radial plunger pump |
| JP2017048698A (en) * | 2015-08-31 | 2017-03-09 | 中禾亞股▲ふん▼有限公司 | Output shaft lubricating structure for liquid pressurizing pump |
| CN106762502A (en) * | 2016-12-28 | 2017-05-31 | 徐州恒佳机械科技有限公司 | A kind of universal plunger displacement pump of profit |
| CN107100815A (en) * | 2017-05-23 | 2017-08-29 | 杭州众拓科技有限公司 | Small-sized electric hydraulic planger pump |
| CN206770147U (en) * | 2017-05-23 | 2017-12-19 | 杭州众拓科技有限公司 | Light-weight electric hydraulic planger pump |
| CN107795451A (en) * | 2017-11-29 | 2018-03-13 | 欧盾科技有限公司 | Integrated high pressure oil pump |
| CN208380766U (en) * | 2018-03-20 | 2019-01-15 | 浙江工业大学 | A kind of high pressure variable plunger-type fuel pump system and device |
-
2018
- 2018-03-20 CN CN201810230577.XA patent/CN108343574B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201354718Y (en) * | 2009-02-25 | 2009-12-02 | 杭州萧山东方液压件有限公司 | Multi-cylinder radial plunger pump |
| JP2017048698A (en) * | 2015-08-31 | 2017-03-09 | 中禾亞股▲ふん▼有限公司 | Output shaft lubricating structure for liquid pressurizing pump |
| CN106762502A (en) * | 2016-12-28 | 2017-05-31 | 徐州恒佳机械科技有限公司 | A kind of universal plunger displacement pump of profit |
| CN107100815A (en) * | 2017-05-23 | 2017-08-29 | 杭州众拓科技有限公司 | Small-sized electric hydraulic planger pump |
| CN206770147U (en) * | 2017-05-23 | 2017-12-19 | 杭州众拓科技有限公司 | Light-weight electric hydraulic planger pump |
| CN107795451A (en) * | 2017-11-29 | 2018-03-13 | 欧盾科技有限公司 | Integrated high pressure oil pump |
| CN208380766U (en) * | 2018-03-20 | 2019-01-15 | 浙江工业大学 | A kind of high pressure variable plunger-type fuel pump system and device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561435A (en) * | 2020-05-28 | 2020-08-21 | 欧盾科技有限公司 | Hand-held double-tube single-connection electric hydraulic pump |
| CN113606223A (en) * | 2021-07-26 | 2021-11-05 | 浙江飞越机电有限公司 | Exhaust oiling structure of hydraulic pipe fitting machining tool |
| CN113606223B (en) * | 2021-07-26 | 2024-06-07 | 浙江飞越机电有限公司 | Exhaust and oiling structure of hydraulic pipe fitting processing tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108343574B (en) | 2023-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2330781A (en) | Conveying fluids containing solids | |
| US5346037A (en) | Packing nut and rod guide for piston paint pumps | |
| CN108343574A (en) | A kind of high pressure variable plunger-type fuel pump system and device | |
| CN106121888A (en) | Single cylinder high pressure co-rail diesel pump assembly for common rail system | |
| CN208474056U (en) | A kind of split type fluid end of water injecting pump | |
| US3063378A (en) | Pump construction | |
| GB2031061A (en) | Liquid and valve assembliess for reciprocating plunger pumps | |
| CN110410311B (en) | Hydraulic balance reciprocating pump | |
| CN108425776A (en) | A kind of co-rail fuel feed pump of oil inlet control | |
| CN208380766U (en) | A kind of high pressure variable plunger-type fuel pump system and device | |
| CN205806597U (en) | A kind of one-way pressure-regulating overflow valve of band thrust bearing | |
| CN109653973B (en) | Water lubrication shaft valve composite flow distribution radial plunger pump | |
| CN209163980U (en) | A kind of High Pressure Common-Rail Fuel Inject high-pressure fuel injection pump assembly | |
| CN201953650U (en) | Dipolar parallelly-connected gear pump | |
| US4149831A (en) | Double-acting differential piston supply pump | |
| CN106121889A (en) | High Enhanced diesel engine constant-pressure oil injection pump | |
| CN102434424A (en) | Spiral rod oil distribution energy storage plunger pump | |
| CN103277279A (en) | Pump assisted type valve distributing plunger pump | |
| CN109340100A (en) | A kind of plunger pump | |
| CN203285640U (en) | Auxiliary pump type plunger pump with flow distributed by valve | |
| CN204239784U (en) | A kind of emery wheel modulating valve with emery wheel lubricating structure | |
| CN207905882U (en) | A kind of engine oil grid | |
| CN105402101A (en) | Double-output axial plunger pump | |
| CN208252290U (en) | A kind of squeezer of integrated high pressure plunger-type fuel pump driving | |
| US2925047A (en) | Rotary hydraulic pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |