CN105715435B - Equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump - Google Patents
Equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump Download PDFInfo
- Publication number
- CN105715435B CN105715435B CN201610217617.8A CN201610217617A CN105715435B CN 105715435 B CN105715435 B CN 105715435B CN 201610217617 A CN201610217617 A CN 201610217617A CN 105715435 B CN105715435 B CN 105715435B
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- Prior art keywords
- plunger
- magnet coil
- rotating shaft
- automatically controlled
- low
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
- F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
- F02M59/28—Mechanisms therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/442—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston means preventing fuel leakage around pump plunger, e.g. fluid barriers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnets (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention provides equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump, mainly including plunger bushing, low-resistance combined plunger device, automatically controlled rotating device and electric control telescopic device.Automatically controlled rotation, telescopic plunger motion are characterized in, and plunger is low-resistance combined type.The present invention realizes the adjustment of plunger effective stroke by automatically controlled rotating device；The upper and lower motion of plunger is realized by electric control telescopic device and return spring；Realized by its upper end except slag plate and remove the dregs of fat, prevent plunger wear；Being realized by combined plunger reduces cost, is convenient for changing；By the piston with ladder-shaped sealing ring, the low-resistance motion and sealing of combined plunger are realized；By the strip rotating shaft groove of rotating shaft side wall, realize the driving rotation of rotating shaft and moved without interference；Delay startup push rod delay startup is realized by concave magnet coil C, prevents impact failure rotating shaft；The rotation of rotary magnet is buffered, limited by torsional spring.
Description
Technical field
The present invention relates to equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump, more particularly to one kind
The adjustment of plunger effective stroke is realized by automatically controlled rotating device, plunger is realized by electric control telescopic device and return spring
Upper and lower motion, realized by its upper end except slag plate and remove the dregs of fat, prevent plunger wear, being realized by combined plunger reduces
Cost, it is convenient for changing, realizes that the low-resistance of combined plunger is moved and sealed by the piston with ladder-shaped sealing ring；Pass through rotating shaft side wall
Strip rotating shaft groove realize rotating shaft driving rotation and without interference move, buffer by torsional spring, limit electric rotating
The rotation of magnet, belong to the technical research field of jerk fuel injection pump.
Background technology
Jerk fuel injection pump be using reciprocating motion of the plunger in plunger bushing come oil suction and force feed, and at regular time and quantity to
Fuel injector conveying high-pressure fuel oil.But due to the unicity of current partial plunger formula oil spout pump configuration, cause problems with：When
Mechanical efficiency is low, and the power drive unit of jerk fuel injection pump is mainly mechanical at present, mechanical type driving apparatus due to
The power transmission of more parts be present, it is low to often result in whole efficiency, and with noise problem；Second, control accuracy is low, mechanically
Drive device, because of the impact between part, wear problem, causes the change of Parameters of The Parts after long-play, causes accordingly to control
The reduction of precision processed；Third, cost is high, because plunger matching parts is precision element, cause its holistic cost higher；Fourth, short life,
When plunger moves up, the dregs of fat in low-quality fuel oil easily enter plunger sidewall, cause plunger wear, reduce its service life.
Therefore, mechanical efficiency for existing partial plunger formula injection pump generally existing in use is low, control accuracy
Low, cost is high and the problems such as short life, should be considered from the overall structure of jerk fuel injection pump, design efficiency is high,
Control accuracy is high, cost is low and a kind of injection pump of long lifespan.
The content of the invention
Mechanical efficiency of the invention for existing partial plunger formula injection pump generally existing in use is low, control accuracy
Low, cost is high and the problems such as short life, there is provided it is a kind of can effectively solve the above problems equipped with low-resistance combined plunger and automatically controlled
Rotation, flexible jerk fuel injection pump.
The present invention's uses following technical side equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump
Case：
Equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump, mainly combined including plunger bushing, low-resistance
Plunger assembly, automatically controlled rotating device and electric control telescopic device, low-resistance combined plunger device are coaxially mounted in plunger bushing, automatically controlled rotation
Rotary device is arranged on immediately below low-resistance combined plunger device, and electric control telescopic device is arranged on immediately below automatically controlled rotating device；It is described
Low-resistance combined plunger device is mainly made up of plunger, stud, piston, and the cylindrical place in its upper end face is provided with except slag plate,
Its upper end is provided with centre bore, and plunger sidewall is provided with skewed slot, and skewed slot bottom communicates with centre bore, and plunger bottom center is provided with interior spiral shell
Line blind hole；The piston upper end center is provided with blind screw hole, and piston side wall is provided with circular groove, trapezoidal sealing is provided with circular groove
Circle, piston center are provided with blind screw hole, and the cylindrical place of piston is provided with floor, stud be arranged on plunger bottom with
The blind screw hole of piston upper end；The automatically controlled rotating device mainly by rotating shaft with rotating electromagnetic valve group into rotating shaft upper end is provided with
External screw thread head, the external screw thread head of rotating shaft upper end are arranged in the blind screw hole of piston, and rotating shaft lower end is provided with blind hole, rotating shaft
Side wall is provided with rotating shaft groove；The electric rotating magnet valve is mainly by interior convex magnet coil A, interior convex magnet coil B, rotating electromagnetic
Iron, drive rod and torsional spring composition, the interior convex magnet coil A and interior convex magnet coil B are installed in inner sleeve and outside
Between sleeve, installation base shape sealing ring, outer plate, and upper successively on interior convex magnet coil A and interior convex magnet coil B
The top of outer plate is provided with fixed plate, and outer sleeve upper end is provided with return spring, and the both ends of return spring are separately mounted to overcoat
Cylinder upper end and piston floor lower end, return spring are for 6 and circumferential uniform；The cross section of the rotary magnet assumes a " convex " shape knot
Structure, the protruding end of rotary magnet are provided with external screw thread head, and rotary magnet is 2 and centering is arranged；The vertical of the drive rod is broken
Face is square, and drive rod is provided with blind screw hole close to rotary magnet one end, the external screw thread of installation rotary magnet in it
Head, the other end of drive rod are arranged in rotating shaft groove, and drive rod middle-end is provided with projection, raised close rotary magnet side
Upper and lower end is provided with circular seal ring and clip plate, and circular seal ring and clip plate are fixed on inner sleeve by strip fixed plate
On, circular seal ring and clip plate are respectively arc-shaped, and which part is not provided with arc groove, is provided with clip plate arc groove
Circular seal ring, drive rod is installed in circular seal ring arc groove, the side of drive rod is provided with torsional spring, torsional spring
It is fixed on rotating missile spring abutment, drive rod can compress torsional spring, and drive rotary magnet to do circular motion；It is described automatically controlled to stretch
Compression apparatus is mainly made up of push rod and Direct-action electromagnetic valve, and push rod pine is enclosed in the blind hole of rotating shaft lower end, and the Direct-action electromagnetic valve is main
It is made up of concave magnet coil C, vertical electromagnet and uprighting spring, the first half in concave magnet coil C vertical sections is in square
Shape, lower half are in inverted trapezoidal structure, and the both ends of uprighting spring connect uprighting spring seat and vertical electromagnet, vertical electromagnet respectively
Upper end be connected with push rod.
It is described to remove the circular ring structure that slag plate is the rectangular triangle in vertical section, except the side straight flange of slag plate is arranged on plunger
End face, opposite side contact with plunger bushing medial surface.
The circular groove of the piston side wall is in interior small, outer big trapezium structure, and circular groove quantity is 3 and interval is equal, trapezoidal
Sealing ring quantity is 3.
The plunger sidewall lower end and piston side wall upper end are respectively equipped with positioning mark, and plunger and piston are pacified using stud
During dress, the positioning mark of plunger sidewall lower end and piston side wall upper end needs centering.
The rotating shaft groove is 2 and is arranged symmetrically that rotating shaft groove is in strip and its inner face is rectangular, rotating shaft groove
Height be more than plunger max die travel distance.
The fixed plate quantity is 4, the rectangular triangle in vertical section of fixed plate, and the spot welding of two right-angle sides difference is outside
On sleeve and outer plate.
The outer sleeve is higher than inner sleeve, and the difference in height of inner and outer sleeves is equal to the height of fixed plate, the middle part of inner sleeve
4 breach are provided with, breach size is equal with interior convex magnet coil A and interior convex magnet coil B bossing.
The interior convex magnet coil A and interior convex magnet coil B quantity be respectively 2 and its each centering arrange,
Interior convex magnet coil A and interior convex magnet coil B vertical section assume a " convex " shape structure respectively, interior convex magnet coil A and interior
Convex magnet coil B outer surface fits in arc-shaped and with outer sleeve inwall respectively, and interior convex magnet coil B is with respect to convex
Shape magnet coil A offsets 60 °, and interior convex magnet coil B arc length is 2 times of interior convex magnet coil A.
The present invention is provided with its upper end face and removes slag plate, is realized by this design and removes the dregs of fat, prevents plunger wear, i.e.,
When plunger moves up in plunger bushing and compresses fuel oil, do not install except slag plate such as, under high pressure fuel effect, the part dregs of fat are easily
Into between plunger and the contact surface of plunger bushing, plunger is caused plunger wear when moving up and down, and reduce it and use the longevity
Life；And its upper end of the present invention design removes slag plate, plunger can be made when moving up, by shifting to an earlier date the dregs of fat of its upper end except slag plate
Remove, both prevented the dregs of fat from entering plunger sidewall and caused the abrasion of plunger and plunger bushing, and can makes plunger in the plunger bushing of cleaning
Quickly moved on wall, eliminate the dregs of fat and cause plunger movement sluggish.
Combined plunger is designed as the structure of upper plug, lower piston by the present invention, and equipment cost, side are reduced by this design
Just plunger is changed, because the plunger matching parts being made up of plunger and plunger bushing is the precision pair in injection pump, manufacturing cost is high, and
At work, its key area is the skewed slot part of plunger to plunger, and the guiding that plunger skewed slot acts only as plunger with lower part is made
With therefore, to reduce cost, the piston element that skewed slot is designed to change by the present invention with lower part, piston is not necessarily as essence
Close element design, and piston energy Reusability；In addition, the combining structure of upper plug, lower piston can also facilitate plunger with changing, such as
When upper plug damages or changes different type skewed slot, plunger need to only be screwed off on stud, then change required plunger.
The present invention is provided with circular groove in piston side wall and ladder-shaped sealing ring is housed, and the low of combined plunger is realized by this design
Resistance motion and sealing, i.e., by the ladder-shaped sealing ring of piston side wall, piston contact with plunger bushing inwall is converted into trapezoidal close
Seal contact with plunger bushing inwall, reduces contact area, so as to reduce the frictional resistance of combined plunger motion；This peripheral hardware
Three ladder-shaped sealing rings of meter not only act as the effect of combined plunger sealing, and the closed area between three ladder-shaped sealing rings also acts as
The effect of temporary oil leak.
The present invention is provided with 2 symmetrical strip rotating shaft grooves in rotating shaft side wall, and the driving of rotating shaft is realized by this design
Rotate and moved without interference, i.e., internal convex magnet coil B is powered, when driving rotary magnet, drive rod rotate, because of drive rod
In rotating shaft groove, when drive rod rotates, rotating shaft can be driven to rotate together, so as to realize the automatically controlled rotation of jerk fuel injection pump
Turn；And when Direct-action electromagnetic valve drives push rod to move up, return spring drives rotating shaft to move down, strip rotating shaft groove can guarantee that driving
Motion of the bar without interference rotating shaft.
The present invention is provided with projection in drive rod middle-end, realizes that drive rod is fixed by this design, prevents interior convex electromagnetism
Loop A, interior convex magnet coil B drive rotary magnet, drive rod to move radially.
The present invention is provided with torsional spring in automatically controlled rotating device, plays buffering, restriction effect to rotary magnet, prevents spin-ended
Turn electromagnet and occur excessive rotation under interior convex magnet coil A, interior convex magnet coil B drive.
Concave magnet coil C is designed as that the first half is rectangular, lower half is in inverted trapezoidal structure by the present invention, by this
The gradual enhancing of magnetic force is realized in design, so as to play the effect of delay startup to vertical electromagnet, and then realizes the delay startup of push rod,
Anti- throw-out lever impacts rotating shaft, causes rotating shaft to damage.
The present invention realizes the automatically controlled rotation of plunger by automatically controlled rotating device, i.e., when plunger needs rotation, only needs internal
Convex magnet coil B is powered, and interior convex magnet coil B produces magnetic force, attracts rotary magnet to overcome torsional spring to produce rotation
Motion, the rotary magnet of rotation drives drive rod, rotating shaft, piston rotation successively, and then drives plunger rotation, passes through control pair
Interior convex magnet coil B turn on angle can indirect control plunger rotation amount, so as to realize the adjustment of plunger effective stroke, and then
Adjust pump oil amount；And when plunger needs to return to initial position, only need internal convex magnet coil A to be powered, and internally convex electricity
Magnetic coil B gradually reduces turn on angle, and rotary magnet can drive plunger rotary to rotate back into initial position indirectly.
The present invention realizes the automatically controlled flexible of plunger by electric control telescopic device and 6 return springs, i.e., when on plunger needs
During shifting, by being powered to concave magnet coil C, magnetic force is produced to vertical electromagnet, vertical electromagnet is overcome uprighting spring
And drive push rod, rotating shaft, piston to move up, and then drive plunger to move up；, only need to be to concave electromagnetic wire when needing plunger to move down
C power-off is enclosed, return spring and uprighting spring can drive plunger to move down indirectly.
The beneficial effects of the invention are as follows：The adjustment of plunger effective stroke is realized by automatically controlled rotating device；Stretched by automatically controlled
Compression apparatus and return spring realize the upper and lower motion of plunger；Realized by its upper end except slag plate and remove the dregs of fat, prevent plunger
Abrasion；Being realized by combined plunger reduces cost, is convenient for changing；By the piston with ladder-shaped sealing ring, combined plunger is realized
Low-resistance is moved and sealing；By the strip rotating shaft groove of rotating shaft side wall, realize the driving rotation of rotating shaft and moved without interference；It is logical
Cross concave magnet coil C and realize delay startup push rod delay startup, prevent impact failure rotating shaft；Buffer, limit by torsional spring
The rotation of rotary magnet processed.
Brief description of the drawings
Fig. 1 is the overall structure diagram that plunger of the present invention reaches bottom.
Fig. 2 be in the present invention oilhole with except the close-up schematic view at slag plate.
Fig. 3 is plunger and the close-up schematic view of rotating shaft in the present invention.
Fig. 4 is that the close-up schematic view at mark is positioned in the present invention.
Fig. 5 is rotating shaft and the structural representation of electric rotating magnet valve in the present invention.
Fig. 6 is the close-up schematic view of electric rotating magnet valve in the present invention.
Fig. 7 is schematic top plan view of the electric rotating magnet valve in initial position in the present invention.
Fig. 8 is schematic top plan view of the electric rotating magnet valve when rotary magnet reaches the limit of position in the present invention.
Fig. 9 is the structural representation of Direct-action electromagnetic valve and push rod in the present invention.
Figure 10 is the overall structure diagram that plunger of the present invention outreaches.
Wherein：1st, Direct-action electromagnetic valve, 2, rotating shaft, 3, electric rotating magnet valve, 4, piston, 5, stud, 6, plunger, 7, oil
Hole, 8, plunger bushing, 9, except slag plate, 10, skewed slot, 11, positioning mark, 12, ladder-shaped sealing ring, 13, rotating shaft groove, 14, return spring,
15th, floor, 16, inner sleeve, 17, boss shape sealing ring, 18, interior convex magnet coil A, 19, outer sleeve, 20, fixed plate, 21,
Outer plate, 22, rotary magnet, 23, circular seal ring, 24, clip plate, 25, drive rod, 26, rotating missile spring abutment, 27, rotation
Spring, 28, interior convex magnet coil B, 29, uprighting spring seat, 30, uprighting spring, 31, vertical electromagnet, 32, concave electromagnetism
Coil C, 33, seal snap ring, 34, push rod, 35, strip fixed plate.
Embodiment
Embodiment：
As shown in figure 1, equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump, mainly including plunger
Set 8, low-resistance combined plunger device, automatically controlled rotating device and electric control telescopic device, low-resistance combined plunger device are coaxially mounted to post
In plug sleeve 8, automatically controlled rotating device is arranged on immediately below low-resistance combined plunger device, and electric control telescopic device is arranged on automatically controlled rotating dress
Immediately below putting.
With reference to shown in Fig. 2, low-resistance combined plunger device is mainly made up of plunger 6, stud 5, piston 4, the upper end of plunger 6
The cylindrical place in face is provided with except slag plate 9, except the circular ring structure that slag plate 9 is the rectangular triangle in vertical section, except the side of slag plate 9 is straight
Side is arranged on the upper surface of plunger 6, and opposite side contacts with the medial surface of plunger bushing 8.The upper end of plunger 6 is provided with centre bore, and plunger sidewall is opened
There is skewed slot 10, the bottom of skewed slot 10 communicates with centre bore, and the bottom center of plunger 6 is provided with blind screw hole.
It is provided with the upper surface of plunger 6 and remove slag plate 9, during work, this design can realize the removing dregs of fat, prevent plunger 6 from wearing,
I.e. when plunger 6 moves up in plunger bushing 8 and compresses fuel oil, do not install except slag plate 9 such as, under high pressure fuel effect, part oil
Slag easily enters between plunger 6 and the contact surface of plunger bushing 8, makes plunger 6 cause plunger 6 to wear when moving up and down, and reduce
Its service life；And the upper end of plunger 6 of the present invention design removes slag plate 9, plunger 6 can be made when moving up, by except slag plate 9 is by plunger 6
The dregs of fat of upper end are removed in advance, have both been prevented the dregs of fat from entering the side wall of plunger 6 and have been caused the abrasion of plunger 6 and plunger bushing 8, and can makes post
Plug 6 quickly moves on the wall of plunger bushing 8 of cleaning, eliminates the dregs of fat and causes plunger 6 to move sluggishness.
With reference to shown in Fig. 3, Fig. 4, the upper end center of piston 4 is provided with blind screw hole, and the side wall of piston 4 is provided with circular groove, and circular groove is in
Interior small, outer big trapezium structure, circular groove quantity is 3 and interval is equal, and ladder-shaped sealing ring 12, trapezoidal sealing are provided with circular groove
12 quantity are enclosed as 3.
Circular groove is provided with the side wall of piston 4 and ladder-shaped sealing ring 12 is housed, and during work, the low of combined plunger is realized in this design
Resistance motion and sealing, i.e., by the ladder-shaped sealing ring 12 of the side wall of piston 4, the contact with the inwall of plunger bushing 8 of piston 4 is converted into
The contact with the inwall of plunger bushing 8 of ladder-shaped sealing ring 12, reduces contact area, so as to reduce the friction resistance of combined plunger motion
Power；In addition three ladder-shaped sealing rings 12 designed not only act as the effect of combined plunger sealing, between three ladder-shaped sealing rings 12
Closed area also acts as the effect of temporary oil leak.
The lower end center of piston 4 is provided with blind screw hole, and the cylindrical place in the lower end of piston 4 is provided with floor 15, and stud 5 is arranged on
The bottom of plunger 6 and the blind screw hole of the upper end of piston 4；The side wall lower ends of plunger 6 and the sidewall upper of piston 4 are respectively equipped with positioning mark
11, when plunger 6 and the use stud 5 of piston 4 are installed, the need pair of positioning mark 11 of the side wall lower ends of plunger 6 and the sidewall upper of piston 4
In.
Combined plunger is designed as to the structure of upper plug 6, lower piston 4, this design reduces equipment cost, facilitates plunger 6
Change, because the plunger matching parts being made up of plunger 6 and plunger bushing 8 is the precision pair in injection pump, manufacturing cost is high, and plunger
6 at work, and its key area is the part of skewed slot 10 of plunger 6, and the skewed slot 10 of plunger 6 acts only as leading for plunger 6 with lower part
To effect, therefore, to reduce cost, the element of piston 4 that skewed slot 10 is designed to change by the present invention with lower part, piston 4 is not
Precision element must be used as to design, and piston 4 can Reusability；In addition, the combining structure of upper plug 6, lower piston 4 can also facilitate
Plunger 6 is with changing, and when damaging or change different type skewed slot 10 such as upper plug 6, only need to screw off plunger 6 on stud 5, then
Plunger 6 needed for replacing.
With reference to shown in Fig. 5, Fig. 6, Fig. 7 and Fig. 8, automatically controlled rotating device is mainly made up of rotating shaft 2 and electric rotating magnet valve 3, is turned
The upper end of axle 2 is provided with external screw thread head, and the external screw thread head of the upper end of rotating shaft 2 is arranged in the blind screw hole of the lower end of piston 4, under rotating shaft 2
End is provided with blind hole, and the side wall of rotating shaft 2 is provided with rotating shaft groove 13；Rotating shaft groove 13 is 2 and is arranged symmetrically that rotating shaft groove 13 is in strip
Shape and its inner face is rectangular, the height of rotating shaft groove 13 are more than the max die travel distance of plunger 6.
2 symmetrical strip rotating shaft grooves 13 are provided with the side wall of rotating shaft 2, it is this to design the driving for realizing rotating shaft 2 during work
Rotating and moved without interference, i.e., internal convex magnet coil B 28 is powered, when driving rotary magnet 22, drive rod 25 rotate,
Because drive rod 25 is arranged in rotating shaft groove 13, when drive rod 25 rotates, rotating shaft 2 can be driven to rotate together, so as to realize plunger
The automatically controlled rotation of formula injection pump；And when Direct-action electromagnetic valve 1 drives push rod 34 to move up, return spring 14 drives rotating shaft 2 to move down, it is long
Strip rotating shaft groove 13 can guarantee that motion of the drive rod 25 without interference rotating shaft 2.
Electric rotating magnet valve 3 mainly by interior convex magnet coil A 18, interior convex magnet coil B 28, rotary magnet 22,
Drive rod 25 and torsional spring 27 form, and interior convex magnet coil A 18 and interior convex magnet coil B 28 are arranged on inner sleeve 16
Between outer sleeve 19, outer sleeve 19 is higher than inner sleeve 16, and the difference in height of inner sleeve 16, outer sleeve 19 is equal to fixed plate 20
Highly, the middle part of inner sleeve 16 is provided with 4 breach, and breach size is the same as interior convex magnet coil A 18 and interior convex magnet coil B
28 bossing is equal.Installation base shape sealing ring successively on interior convex magnet coil A 18 and interior convex magnet coil B 28
17th, outer plate 21, and fixed plate 20 is installed on the top of upper outer plate 21, the quantity of fixed plate 20 is 4, and fixed plate 20 is indulged
The rectangular triangle of section, and two right-angle sides distinguish spot welding on outer sleeve 19 and outer plate 21.The upper end of outer sleeve 19 is provided with back
Position spring 14, the both ends of return spring 14 are separately mounted to the upper end of outer sleeve 19 and the lower end of 4 floor of piston 15, and return spring 14 is
6 and circumferential uniform.
Interior convex magnet coil A 18 and interior convex magnet coil B 28 quantity are respectively 2 and its respective centering cloth
Put, interior convex magnet coil A 18 and interior convex magnet coil B 28 vertical section assume a " convex " shape structure, interior convex electromagnetism respectively
Loop A 18 and interior convex magnet coil B 28 outer surface fit in arc-shaped and with the inwall of outer sleeve 19 respectively, interior convex
Magnet coil B 28 offsets 60 ° relative to interior convex magnet coil A 18, and interior convex magnet coil B 28 arc length is interior convex electricity
2 times of magnetic coil A 18.
The cross section of rotary magnet 22 assumes a " convex " shape structure, and the protruding end of rotary magnet 22 is provided with external screw thread head, rotation
Turn electromagnet 22 to arrange for 2 and centering；The vertical section of drive rod 25 is square, and drive rod 25 is close to rotary magnet 22 1
End is provided with blind screw hole, the external screw thread head of installation rotary magnet 22 in it, and the other end of drive rod 25 is recessed installed in rotating shaft
In groove 13, the middle-end of drive rod 25 is provided with projection, and during work, this design realizes that drive rod 25 is fixed, and prevents interior convex electromagnetic wire
Circle A 18, interior convex magnet coil B 28 drive rotary magnet 22, drive rod 25 to move radially.Raised close electric rotating
The upper and lower end of the side of magnet 22 is provided with circular seal ring 23 and clip plate 24, and circular seal ring 23 and clip plate 24 pass through length
Bar fixed plate 35 is fixed on inner sleeve 16, and circular seal ring 23 and clip plate 24 are respectively arc-shaped, and which part is not opened
There is arc groove, circular seal ring 23 is installed in the arc groove of clip plate 24, drive rod is installed in the arc groove of circular seal ring 23
25, the side of drive rod 25 is provided with torsional spring 27, and torsional spring 27 is fixed on rotating missile spring abutment 26, and drive rod 25 can press
Contracting torsional spring 27, and drive rotary magnet 22 to do circular motion.Torsional spring 27 plays buffering, limitation to rotary magnet 22
Effect, prevent rotary magnet 22 from occurring excessive rotation under interior convex magnet coil A 18, interior convex magnet coil B 28 drive
Turn.
The present invention realizes the automatically controlled rotation of plunger 6 by automatically controlled rotating device, i.e., when plunger 6 needs rotation, a need pair
Interior convex magnet coil B 28 is powered, and interior convex magnet coil B 28 produces magnetic force, attracts rotary magnet 22 to overcome rotating missile
Spring 27 produces rotary motion, and the rotary magnet 22 of rotation drives drive rod 25, rotating shaft 2, piston 4 to rotate successively, and then drives
Plunger 6 rotates, by control internal convex magnet coil B 28 turn on angle can indirect control plunger 6 rotation amount, so as to real
The adjustment of the existing effective travel of plunger 6, and then adjust pump oil amount；And when plunger 6 needs to return to initial position, only need internal convex
Magnet coil A 18 is powered, and internally convex magnet coil B 28 gradually reduces turn on angle, and rotary magnet 22 can drive indirectly
Plunger 6 is rotated back to initial position.
With reference to shown in Fig. 9, Figure 10, electric control telescopic device is mainly made up of push rod 34 and Direct-action electromagnetic valve 1, the pine set of push rod 34
In the lower end blind hole of rotating shaft 2, Direct-action electromagnetic valve 1 is mainly by concave magnet coil C 32, vertical electromagnet 31 and uprighting spring
30 compositions, the first half in the vertical sections of concave magnet coil C 32 is rectangular, lower half is in inverted trapezoidal structure, uprighting spring 30
Both ends connect uprighting spring seat 29 and vertical electromagnet 31 respectively, and the upper end of vertical electromagnet 31 is connected with push rod 34.
The present invention realizes the automatically controlled flexible of plunger 6 by electric control telescopic device and 6 return springs 14, i.e., when plunger 6 needs
When moving up, by being powered to concave magnet coil C 32, magnetic force is produced to vertical electromagnet 31, makes vertical 31 grams of electromagnet
Take uprighting spring 30 and drive push rod 34, rotating shaft 2, piston 4 to move up, and then drive plunger 6 to move up；When needing plunger 6 to move down,
Concave magnet coil C 32 need to only be powered off, return spring 14 and uprighting spring 30 can drive plunger 6 to move down indirectly.
Claims (8)
1. equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump, mainly including plunger bushing, low-resistance coupled column
Plug device, automatically controlled rotating device and electric control telescopic device, low-resistance combined plunger device are coaxially mounted in plunger bushing, automatically controlled rotation
Device is arranged on immediately below low-resistance combined plunger device, and electric control telescopic device is arranged on immediately below automatically controlled rotating device；Its feature
It is：The low-resistance combined plunger device is mainly made up of plunger, stud, piston, the cylindrical place installation in its upper end face
Have and remove slag plate, its upper end is provided with centre bore, and plunger sidewall is provided with skewed slot, and skewed slot bottom communicates with centre bore, in plunger bottom
The heart is provided with blind screw hole；The piston upper end center is provided with blind screw hole, and piston side wall is provided with circular groove, is provided with circular groove
Ladder-shaped sealing ring, piston center are provided with blind screw hole, and the cylindrical place of piston is provided with floor, and stud is arranged on post
Fill in the blind screw hole of bottom and piston upper end；The automatically controlled rotating device is mainly by rotating shaft and rotating electromagnetic valve group into rotating shaft
Upper end is provided with external screw thread head, and the external screw thread head of rotating shaft upper end is arranged in the blind screw hole of piston, and rotating shaft lower end is provided with
Blind hole, rotating shaft side wall are provided with rotating shaft groove；The electric rotating magnet valve is mainly by interior convex magnet coil A, interior convex magnet coil
B, rotary magnet, drive rod and torsional spring composition, the interior convex magnet coil A and interior convex magnet coil B are arranged on
Between inner sleeve and outer sleeve, installation base shape sealing ring, outer successively on interior convex magnet coil A and interior convex magnet coil B
Pressing plate, and fixed plate is installed on the top of upper outer plate, outer sleeve upper end is provided with return spring, the both ends difference of return spring
Installed in outer sleeve upper end and piston floor lower end, return spring is for 6 and circumferential uniform；The cross section of the rotary magnet
Structure is assumed a " convex " shape, the protruding end of rotary magnet is provided with external screw thread head, and rotary magnet is 2 and centering is arranged；The drive
The vertical section of lever is square, and drive rod is provided with blind screw hole close to rotary magnet one end, installation rotating electromagnetic in it
The external screw thread head of iron, the other end of drive rod are arranged in rotating shaft groove, and drive rod middle-end is provided with projection, raised close to electric rotating
The upper and lower end of magnet side is provided with circular seal ring and clip plate, and circular seal ring and clip plate are consolidated by strip fixed plate
It is scheduled on inner sleeve, circular seal ring and clip plate are respectively arc-shaped, and which part is not provided with arc groove, clip plate circular arc
Circular seal ring is installed in groove, drive rod is installed in circular seal ring arc groove, the side of drive rod is provided with rotating missile
Spring, torsional spring are fixed on rotating missile spring abutment, and drive rod can compress torsional spring, and drive rotary magnet to do circular arc fortune
It is dynamic；The electric control telescopic device is mainly made up of push rod and Direct-action electromagnetic valve, and push rod pine is enclosed in the blind hole of rotating shaft lower end, described straight
Moving electromagnetic valve is mainly made up of concave magnet coil C, vertical electromagnet and uprighting spring, concave magnet coil C vertical sections
The first half is rectangular, lower half is in inverted trapezoidal structure, the both ends of uprighting spring connect uprighting spring seat and vertical electromagnetism respectively
Iron, the upper end of vertical electromagnet are connected with push rod.
2. exist as claimed in claim 1 equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump, its feature
In：It is described to remove the circular ring structure that slag plate is the rectangular triangle in vertical section, except the side straight flange of slag plate is arranged on its upper end face,
Opposite side contacts with plunger bushing medial surface.
3. exist as claimed in claim 1 equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump, its feature
In：The circular groove of the piston side wall is in interior small, outer big trapezium structure, and circular groove quantity is 3 and is spaced equal, ladder-shaped sealing ring
Quantity is 3.
4. exist as claimed in claim 1 equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump, its feature
In：The plunger sidewall lower end and piston side wall upper end are respectively equipped with positioning mark, when plunger and piston are installed using stud,
The positioning mark of plunger sidewall lower end and piston side wall upper end needs centering.
5. exist as claimed in claim 1 equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump, its feature
In：The rotating shaft groove is 2 and is arranged symmetrically that rotating shaft groove is in strip and its inner face is rectangular, the height of rotating shaft groove
Max die travel distance of the degree more than plunger.
6. exist as claimed in claim 1 equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump, its feature
In：The fixed plate quantity is 4, the rectangular triangle in vertical section of fixed plate, and two right-angle sides distinguish spot welding in outer sleeve
On outer plate.
7. exist as claimed in claim 1 equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump, its feature
In：The outer sleeve is higher than inner sleeve, and the difference in height of inner and outer sleeves is equal to the height of fixed plate, and 4 are provided with the middle part of inner sleeve
Individual breach, breach size are equal with interior convex magnet coil A and interior convex magnet coil B bossing.
8. exist as claimed in claim 1 equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump, its feature
In：The interior convex magnet coil A and interior convex magnet coil B quantity be respectively 2 and its each centering arrange, interior convex
Magnet coil A and interior convex magnet coil B vertical section assume a " convex " shape structure, interior convex magnet coil A and interior convex electricity respectively
Magnetic coil B outer surface fits in arc-shaped and with outer sleeve inwall respectively, the interior relatively interior convex electromagnetism of convex magnet coil B
Loop A offsets 60 °, and interior convex magnet coil B arc length is 2 times of interior convex magnet coil A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610217617.8A CN105715435B (en) | 2016-04-11 | 2016-04-11 | Equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610217617.8A CN105715435B (en) | 2016-04-11 | 2016-04-11 | Equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105715435A CN105715435A (en) | 2016-06-29 |
| CN105715435B true CN105715435B (en) | 2017-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610217617.8A Expired - Fee Related CN105715435B (en) | 2016-04-11 | 2016-04-11 | Equipped with low-resistance combined plunger and automatically controlled rotation, flexible jerk fuel injection pump |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106672013B (en) * | 2016-12-09 | 2019-06-28 | 中车长春轨道客车股份有限公司 | A kind of rail vehicle parking brake hand relieving integrated system |
Citations (5)
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|---|---|---|---|---|
| JP3746668B2 (en) * | 2000-09-14 | 2006-02-15 | 三菱重工業株式会社 | Electronically controlled fuel injection device |
| CN101787946A (en) * | 2009-08-24 | 2010-07-28 | 重庆红江机械有限责任公司 | Electric control unit pump for diesel engine |
| CN202203012U (en) * | 2011-08-13 | 2012-04-25 | 重庆红江机械有限责任公司 | Electrically controlled monoblock pump |
| EP2778385A1 (en) * | 2011-11-03 | 2014-09-17 | Beijing Institute Of Technology | Fuel injection system with multiple valves and fuel injection method thereof |
| CN205478044U (en) * | 2016-04-11 | 2016-08-17 | 济南大学 | Low resistance combination plunger and automatically controlled rotation, flexible plunger type injection pump be equipped with |
-
2016
- 2016-04-11 CN CN201610217617.8A patent/CN105715435B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3746668B2 (en) * | 2000-09-14 | 2006-02-15 | 三菱重工業株式会社 | Electronically controlled fuel injection device |
| CN101787946A (en) * | 2009-08-24 | 2010-07-28 | 重庆红江机械有限责任公司 | Electric control unit pump for diesel engine |
| CN202203012U (en) * | 2011-08-13 | 2012-04-25 | 重庆红江机械有限责任公司 | Electrically controlled monoblock pump |
| EP2778385A1 (en) * | 2011-11-03 | 2014-09-17 | Beijing Institute Of Technology | Fuel injection system with multiple valves and fuel injection method thereof |
| CN205478044U (en) * | 2016-04-11 | 2016-08-17 | 济南大学 | Low resistance combination plunger and automatically controlled rotation, flexible plunger type injection pump be equipped with |
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| Publication number | Publication date |
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| CN105715435A (en) | 2016-06-29 |
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