CN105673384B - A kind of bi-motor single-tube double-cavity injects pump machanism - Google Patents
A kind of bi-motor single-tube double-cavity injects pump machanism Download PDFInfo
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- CN105673384B CN105673384B CN201610078222.4A CN201610078222A CN105673384B CN 105673384 B CN105673384 B CN 105673384B CN 201610078222 A CN201610078222 A CN 201610078222A CN 105673384 B CN105673384 B CN 105673384B
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- cavity
- axle sleeve
- motor
- medium
- pump
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
Abstract
The invention discloses a kind of single-tube double-cavity injection pump machanism (bi-motor).The present invention includes single-tube double-cavity syringe pump, steering motor, lead screw motor, transmission device, induction installation and control device；Transmission device includes transmission bracket and two gears, and two gears are arranged in transmission bracket, and intermeshing；The screw mandrel of single-tube double-cavity syringe pump is connected through lead screw motor and with a gear in transmission device；The output shaft of steering motor is connected with another gear in transmission device；Induction installation is provided with transmission device.Single-tube double-cavity syringe pump of the present invention is particular design, when lead screw motor pulls injection shaft motion, and while a dielectric cavity is to port of export injectable media, another dielectric cavity sucks medium from entrance point.Move back and forth and exchange groove and the corresponding relation imported and exported when turning to so that the structure can keep the ability of lasting one direction output medium.
Description
Technical field
The invention belongs to field of mechanical technique, and in particular to a kind of bi-motor single-tube double-cavity injection pump machanism and its user
Method.
Background technology
At present, its working method of in the market conventional injection pump is intermittent.So-called intermittence refers to syringe pump suction Jie
When matter, the ability of pumping out can be lost；And when medium is pumped out, the ability of suction medium can be lost.If necessary to simultaneously
Work, then need two pump cooperative alternative runnings are common to realize the function of continuing pumped (conveying) medium.In order to keep the high-precision of syringe pump
The features such as degree, wide in range output pressure scope, while excluding or greatly eliminating the defect of its intermittent work, hereby invent
This single-tube double-cavity injection pump machanism (bi-motor).
The content of the invention
The purpose of the present invention be overcome the deficiencies in the prior art there is provided a kind of bi-motor single-tube double-cavity injection pump machanism and its
Application method.
The technical solution adopted for the present invention to solve the technical problems is as follows：
A kind of bi-motor single-tube double-cavity injects pump machanism, including single-tube double-cavity syringe pump, steering motor, lead screw motor, biography
Dynamic device, induction installation and control device；Transmission device includes transmission bracket and two gears, and two gears are arranged on transmission branch
In frame, and intermeshing；The screw mandrel of single-tube double-cavity syringe pump is connected through lead screw motor and with a gear in transmission device
Connect；The output shaft of steering motor is connected with another gear in transmission device；Steering motor is made up of motor and decelerator；
Induction installation is provided with transmission device.
The screw mandrel of described lead screw motor is shared with the screw mandrel of single-tube double-cavity syringe pump；That is the screw mandrel of single-tube double-cavity syringe pump
After lead screw motor, then a gear in transmission device；The tail end of the screw mandrel is in flat through gear parts, with this
The intermediate throughholes of the connected gear of screw mandrel are rectangle, so as to match with the tail end of screw mandrel, gear constitutes revolute pair with screw mandrel；Together
When, in the presence of lead screw motor, screw mandrel can be axially moveable, and be slid axially in the gear hole, so as to drive
Injection shaft is axially movable.
The structure steering mechanism of described steering motor, transmission device and screw mandrel, for completing divertical motion；When turn
When being worked to motor, two gears in transmission device are driven, and then drive screw mandrel and injection shaft to rotate together with.
Described induction installation includes screw mandrel sensing unit and turns to sensing unit, is arranged on the transmission bracket of transmission device
On；Screw mandrel sensing unit is optocoupler sensor, for sensing the position that screw mandrel is axially moveable；The silk in the presence of lead screw motor
Bar outward movment vertically, the tail end triggering optocoupler sensor of screw mandrel, so that trigger signal, this signal controlled device is used for sentencing
Fixed thread bar moves to reach ad-hoc location；Turn to sensing unit and block disk and optocoupler sensor including optocoupler, and optocoupler blocks disk and is
Semicircle, is arranged on the other end for the gear being connected with steering motor；In the presence of steering motor, optocoupler blocks disk and turned therewith
It is dynamic；Optocoupler blocks two radial direction straight flanges of disk as two signal trigger points of optocoupler sensor, at a distance of 180 ° of angle relations；When
In its any a line pass through optocoupler sensor when, that is, trigger corresponding signal, this signal controlled device be used for judge turn to
During two stop positions.
Described single-tube double-cavity syringe pump includes opening on pump housing axle sleeve, injection shaft, housing and sealing device, and pump housing axle sleeve
There are axle sleeve medium entrance end and axle sleeve media outlet end；The lateral wall of injection shaft is provided with the groove of two strips, and two recessed
One end of groove is closed, and the other end open and open end is flushed with injection shaft two ends respectively；Injection shaft is arranged on pump housing axle sleeve
Interior, one end and the sealing device of pump housing axle sleeve are tightly connected so that an end face of injection shaft, pump housing axle sleeve madial wall and close
Seal apparatus constitutes side cavity；Another end face, pump housing axle sleeve madial wall and the interior bottom with cylindrical hole on housing of injection shaft
Face constitutes another cavity, and the inner circle of the cylindrical and pump housing axle sleeve of injection shaft is fitted close, and is separated by two cavitys.Injection shaft energy
Moved forward and backward vertically in pump housing axle sleeve, so as to change the volume of two cavitys.
Described axle sleeve medium entrance end and axle sleeve media outlet end is arranged on the centre position of pump housing side wall of shaft sleeve, and axle
Set medium entrance end and axle sleeve media outlet end are symmetrical arranged.Two groove locations on the injection shaft are to inject axis in axis
Center is defined symmetrically.Through hole is provided with the middle of described injection shaft, screw mandrel runs through close with injection shaft through-hole madial wall after the through hole
It is connected；It runs through sealing device beyond one end of injection shaft, and is tightly connected with sealing device.
Described housing is arranged on outside pump housing axle sleeve, is provided with and is gone out with axle sleeve medium entrance end and axle sleeve medium on housing
The corresponding entrance end of mouth end position；And the variation of travel direction as needed is capable of at the medium inlet and outlet end on housing, specifically
's：Medium import and export groove can be set according to direction in housing.The cylindrical hole inwall of housing is sealed with pump housing axle sleeve outer wall,
The inner bottom surface of cylindrical hole plays a part of sealing the pump housing one end face of axle sleeve on housing.
Sealing ring is provided with described sealing device, the sealing ring is closely connected with screw mandrel, and sealing device and housing
By the closed assembly connection of fastener, play a part of sealing the pump housing one end face of axle sleeve.
Symmetrical medium spout hole is provided with described sealing device so that the medium of spill and leakage can be by sealing device
Spout hole flow out without directly reaching motor by screw mandrel.
Described pump housing axle sleeve and the material of injection shaft are ceramics.Described housing and sealing device is metal material
Matter, preferably metallic aluminium and steel.
A kind of bi-motor single-tube double-cavity injects the application method of pump machanism, specific as follows：
Medium entrance end and media outlet end first on housing are filled with external medium input unit and medium output
Put and be tightly connected.Control device starts transfer and operates and stop on reset direction, and this stop position should be single by steering feeling
The optocoupler of member blocks the positioning of disk a line.So-called reset direction, is the side medium cavity and axle being made up of sealing device
Cover media outlet end through injection shaft side groove connection, while opposite side groove of the opposite side medium cavity through injection shaft with
Axle sleeve medium entrance end is connected；Two grooves of injection shaft are respectively just to axle sleeve medium entrance end and axle sleeve media outlet end.Control
Device processed starts lead screw motor and pulls injection shaft so that the axial lead screw motor direction movement of injection, by an end face of injection shaft,
The side cavity volume that pump housing axle sleeve madial wall and sealing device are constituted diminishes, and chamber in-vivo medium (has air when initial
Or the mixture of air and medium) pumped out through groove；Meanwhile, (dielectric cavity is by the another of injection shaft for the medium cavity of opposite side
One end face, pump housing axle sleeve madial wall and constituted with the inner bottom surface of cylindrical hole on housing) volume becomes big, and medium is through the side
Groove is inhaled into cavity.When lead screw motor pulls injection shaft to walk close to the end face of sealing device, screw mandrel tail end triggering screw mandrel
Sensing unit, control device stops lead screw motor according to this trigger signal, then starts transfer and operates and stop at and multiple
On the direction in opposite direction of position, the another a line that this stop position blocks disk by the optocoupler of steering sensing unit is positioned.It is so-called with
Reset direction in opposite direction, i.e., on the basis of resetting direction, the position after 180 ° of divertical motion, now injection shaft grooves on two sides
Position completes exchange, and just the side groove at axle sleeve medium entrance end was become just to axle sleeve media outlet end, now with this originally
Medium is filled with the dielectric cavity that groove is communicated and is connected with axle sleeve media outlet end；Originally just to the another of axle sleeve media outlet end
Side groove becomes just to axle sleeve medium entrance end, the dielectric cavity communicated with the groove emptied medium and with axle sleeve medium entrance
End connection.Control device starts lead screw motor and antiport, and injection shaft is pushed away into lead screw motor direction, thus changes injection shaft
The volume of both sides cavity, while the side cavity is continued to pump out medium, opposite side cavity suction medium is opened with timed unit
The stroke of beginning accumulative injection shaft and screw mandrel.When injection shaft, which pushed away from lead screw motor, reaches setting stroke, control device stops silk
Bar motor, then starts transfer and operates and stop at again on reset direction.So move in circles, except transfer is held
Have during row go to action outside of short duration stopping, pump machanism is sustainable constantly pumps out medium for single-tube double-cavity injection.
Beneficial effects of the present invention：
The present invention is simple in construction, and two slot openings on injection shaft are respectively in two different end faces of injection shaft, knot
Plying bar pulls the injection shaft direction of motion different so that a dielectric cavity is while to port of export injectable media, another Jie
Matter chamber sucks medium from entrance point.Move back and forth and exchange groove and the corresponding relation imported and exported when turning to so that should
Syringe pump can keep the ability of lasting one direction output medium.
The control device and induction installation of the present invention, accurate control steering mechanism and lead screw motor, are alternately performed steering dynamic
Make the action with push-and-pull injection shaft and screw mandrel, realize the manipulation and operation to this kind of syringe pump.
The pump housing axle sleeve of the present invention and the material of injection shaft are preferred with ceramics, can in particular for highly viscous medium
High accuracy, which coordinates, plays sealing function to isolate two dielectric cavities, and reaches effect wear-resisting, that rotation resistance to sliding is small.
The pump housing axle sleeve and injection shaft of the present invention can also use other materials and encapsulating method, specifically：It can be gold
Belong to material and rubber seal technology, with suitable for the mobility such as water, edible vegetable oil and gas are strong, viscosity is low medium.
Brief description of the drawings
Fig. 1 is overall structure figure of the invention；
Fig. 2 is sectional view of the present invention；
Fig. 3 is side view of the present invention；
Fig. 4 is the overall structure figure of single-tube double-cavity syringe pump of the present invention；
Fig. 5 is pump housing axle sleeve structure figure of the present invention；
Fig. 6 is injection shaft structure chart of the present invention；
Fig. 7 is inventive shell structure chart.
It is steering motor 1, pump case 2, pump housing axle sleeve 3, injection shaft 4, screw mandrel 5, sealing ring catch 6, sealing device 7, close in figure
Seal 8, lead screw motor 9, transmission bracket 10, gear 11, screw mandrel sensor 12, rotation direction sensor 13, rotation direction sensor catch 14,
Gear 15.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As illustrated in fig. 1 and 2, a kind of bi-motor single-tube double-cavity injection pump machanism, including single-tube double-cavity syringe pump, steering motor
1st, lead screw motor 9, transmission device, induction installation and control device；Transmission device includes transmission bracket 10 and two gears, two
Gear is arranged in transmission bracket 10, and intermeshing；The screw mandrel 5 of single-tube double-cavity syringe pump through lead screw motor 9 and with transmission
A gear 11 in device is connected；The output shaft of steering motor 1 is connected with another gear 15 in transmission device；Turn
It is made up of to motor 1 motor and decelerator；Induction installation is provided with transmission device.
The screw mandrel 5 of described lead screw motor 9 is shared with the screw mandrel 5 of single-tube double-cavity syringe pump；That is single-tube double-cavity syringe pump
Screw mandrel 5 runs through after lead screw motor 9, then a gear 11 in transmission device；The tail end of the screw mandrel 5 runs through the part of gear 11
In flat, the intermediate throughholes of the gear 11 being connected with the screw mandrel 5 are rectangle, so as to match with the tail end of screw mandrel 5, gear 11 with
Screw mandrel 5 constitutes revolute pair；Meanwhile, in the presence of lead screw motor 9, screw mandrel 5 can be axially moveable, and in the through hole of gear 11
In slide axially, so as to drive injection shaft 4 axially movable.
The structure steering mechanism of described steering motor 1, transmission device and screw mandrel 5, for completing divertical motion；When
When steering motor 1 works, two gears in transmission device are driven, and then drive screw mandrel 5 and injection shaft 4 to rotate together with.
As shown in figure 3, described induction installation includes screw mandrel sensing unit and turns to sensing unit, transmission device is arranged on
Transmission bracket 10 on；Screw mandrel sensing unit is optocoupler sensor 12, for sensing the position that screw mandrel 5 is axially moveable；In silk
The outward movment vertically of screw mandrel 5 in the presence of bar motor 9, the tail end triggering optocoupler sensor 12 of screw mandrel 5, so that trigger signal,
This signal controlled device is used for judging that screw mandrel 5 moves to reach ad-hoc location；Turn to sensing unit and block the He of disk 14 including optocoupler
Optocoupler sensor 13, and it is semicircle that optocoupler, which blocks disk 14, is arranged on the other end for the gear 15 being connected with steering motor 1；
In the presence of steering motor 1, optocoupler blocks the concomitant rotation of disk 14；Two radial direction straight flanges that optocoupler blocks disk 14 are sensed as optocoupler
Two signal trigger points of device 13, at a distance of 180 ° of angle relations；When its central any a line passes through optocoupler sensor 13, that is, touch
Send out signal corresponding, this signal controlled device is used for judging two stop positions in steering procedure.
As shown in Fig. 4,5 and 6, described single-tube double-cavity syringe pump includes pump housing axle sleeve 3, injection shaft 4, pump case 2 and sealing
Axle sleeve medium entrance end and axle sleeve media outlet end 3-1 and 3-2 are provided with device 7, and pump housing axle sleeve 3；The lateral wall of injection shaft 4
The groove 4-1 and 4-2 of two strips are provided with, and one end of two grooves is closed, the other end open and open end is distinguished
Flushed with the two ends of injection shaft 4；Injection shaft 4 is arranged in pump housing axle sleeve 3, and one end of pump housing axle sleeve 3 is sealed with sealing device 7 to be connected
Connect so that an end face, the madial wall of pump housing axle sleeve 3 and the sealing device 7 of injection shaft 4 constitute side cavity；Injection shaft 4 it is another
One end face, the madial wall of pump housing axle sleeve 3 and constitute another cavity with the inner bottom surface of cylindrical hole on pump case 2, injection shaft 4 it is outer
The inner circle of circle and pump housing axle sleeve 3 is fitted close, and is separated by two cavitys.Injection shaft 4 can in pump housing axle sleeve 3 front and rear fortune vertically
It is dynamic, so as to change the volume of two cavitys.
As it can be seen in figures 5 and 6, described axle sleeve medium entrance end and axle sleeve media outlet end is arranged on the side wall of pump housing axle sleeve 3
Centre position, and axle sleeve medium entrance end and axle sleeve media outlet end be symmetrical arranged.Two grooves position on the injection shaft 4
Put and be defined symmetrically by the center of the axis of injection shaft 4.Through hole 4-3 is provided with the middle of described injection shaft 4, screw mandrel 5 runs through after the through hole
It is closely coupled with the through hole madial wall of injection shaft 4；It runs through sealing device 7 beyond one end of injection shaft 4, and close with sealing device 7
Envelope connection.
As shown in fig. 7, described pump case 2 is arranged on outside pump housing axle sleeve 3, it is provided with pump case 2 and axle sleeve medium entrance
End entrance end corresponding with axle sleeve media outlet end position；And the medium inlet and outlet end on pump case 2 can be carried out as needed
The variation in direction, specifically：Medium import and export groove can be set in pump case 2 according to direction.The cylindrical hole inwall of pump case 2 with
The outer wall of pump housing axle sleeve 3 is sealed, and the inner bottom surface of cylindrical hole plays a part of sealing the pump housing 3 one end faces of axle sleeve on pump case 2.
Be provided with sealing ring 8 in described sealing device 7, the sealing ring 8 is closely connected with screw mandrel 5, and sealing device 7 with
Pump case 2 plays a part of sealing the pump housing 3 one end faces of axle sleeve by the closed assembly connection of fastener.
Symmetrical medium spout hole is provided with described sealing device 7 so that the medium of spill and leakage can pass through sealing device 7
On spout hole outflow without directly pass through screw mandrel 5 reach motor.
Described pump housing axle sleeve 3 and the material of injection shaft 4 are ceramics.Described pump case 2 and sealing device 7 is metal
Material, preferably metallic aluminium and steel.
A kind of bi-motor single-tube double-cavity injects the application method of pump machanism, specific as follows：
Medium entrance end and media outlet end first on pump case 2 are filled with external medium input unit and medium output
Put and be tightly connected.Control device starts transfer and operates and stop on reset direction, and this stop position should be single by steering feeling
The optocoupler of member blocks the positioning of disk a line.So-called reset direction, is the side medium cavity and axle being made up of sealing device 7
Groove connection of the media outlet end through certain side of injection shaft 4 is covered, while opposite side groove of the opposite side medium cavity through injection shaft 4
Connected with axle sleeve medium entrance end；Two grooves of injection shaft 4 are respectively just to axle sleeve medium entrance end and axle sleeve media outlet end.
Control device starts lead screw motor 9 and pulls injection shaft 4 so that injection shaft 4 is moved to the direction of lead screw motor 9, by the one of injection shaft 4
The side cavity volume that individual end face, the madial wall of pump housing axle sleeve 3 and sealing device 7 are constituted diminishes, and chamber in-vivo medium is (when initial
Wait the mixture for having air or air and medium) pumped out through groove；Meanwhile, (dielectric cavity is by noting for the medium cavity of opposite side
Penetrate another end face of axle 4, the madial wall of pump housing axle sleeve 3 and constituted with the inner bottom surface of cylindrical hole on pump case 2) volume becomes big, and
Groove of the medium through the side is inhaled into cavity.When lead screw motor 9 pulls injection shaft 4 to walk close to the end face of sealing device 7, silk
The tail end of bar 5 triggering screw mandrel sensing unit 12, control device stops lead screw motor 9 according to this trigger signal, then starts and turns to dress
Put and operate and stop at resetting on direction in opposite direction, this stop position blocks disk 14 by the optocoupler of steering sensing unit
Another a line positioning.The so-called direction in opposite direction with reset, i.e., on the basis of resetting direction, the position after 180 ° of divertical motion
Put, now the grooves on two sides position of injection shaft 4 completes exchange, and just the side groove at axle sleeve medium entrance end was become just to axle originally
Cover and be filled with medium in media outlet end, the dielectric cavity now communicated with the groove and connected with axle sleeve media outlet end；Originally
Just the opposite side groove at axle sleeve media outlet end is become just to axle sleeve medium entrance end, the dielectric cavity communicated with the groove has been arranged
Empty medium is simultaneously connected with axle sleeve medium entrance end.Control device starts lead screw motor 9 and antiport, and injection shaft 4 is pushed away into silk
The direction of bar motor 9, thus changes the volume of the both sides cavity of injection shaft 4, while the side cavity is continued to pump out medium, opposite side
Cavity sucks medium, starts the stroke of accumulative injection shaft 4 and screw mandrel 5 with timed unit.When injection shaft 4 pushed away from lead screw motor
9 reach that control device stops lead screw motor 9 when setting stroke, then start transfer and operate and stop at reset side again
Upwards.So move in circles, in addition to having of short duration stopping when transfer performs go to action, single-tube double-cavity injection pump machanism
It is sustainable constantly to pump out medium.
Claims (12)
1. a kind of bi-motor single-tube double-cavity injects pump machanism, it is characterised in that including single-tube double-cavity syringe pump, steering motor, screw mandrel
Motor, transmission device, induction installation and control device；Transmission device includes transmission bracket and two gears, and two gears are set
In transmission bracket, and intermeshing；Single-tube double-cavity syringe pump is connected by lead screw motor with a gear in transmission device
Connect；The output shaft of steering motor is connected with another gear in transmission device；Induction installation is provided with transmission device；Sense
Answer device to include flexible sensing unit and turn to sensing unit；Flexible sensing unit is optocoupler sensor, is arranged on transmission device
Transmission bracket on, for sensing the position that screw mandrel is axially moveable；Turn to sensing unit and block disk and optocoupler biography including optocoupler
Sensor, is arranged on the gear other end being connected with decelerator；Control device is used for the motion for controlling steering motor and lead screw motor；
Described single-tube double-cavity syringe pump includes being provided with axle on pump housing axle sleeve, injection shaft, housing and sealing device, and pump housing axle sleeve
Cover medium entrance end and axle sleeve media outlet end；The lateral wall of injection shaft is provided with the groove of two strips, and two grooves
One end is closed, and the other end open and open end is flushed with injection shaft two ends respectively；Injection shaft is arranged in pump housing axle sleeve, pump
One end of body axle sleeve is tightly connected with sealing device so that an end face, pump housing axle sleeve madial wall and the sealing dress of injection shaft
Put one cavity of composition, another end face, pump housing axle sleeve madial wall and the inner bottom surface structure with cylindrical hole on housing of injection shaft
Into another cavity, the inner circle of the cylindrical and pump housing axle sleeve of injection shaft is fitted close, and is separated by two cavitys；Injection shaft can be in pump
Moved forward and backward vertically in body axle sleeve, so as to change the volume of two cavitys.
2. a kind of bi-motor single-tube double-cavity injection pump machanism as claimed in claim 1, it is characterised in that it is half that optocoupler, which blocks disk,
Circle, optocoupler blocks two radial direction straight flanges of disk as two signal trigger points of optocoupler sensor, for controlling steering motor
Number of rotation.
3. a kind of bi-motor single-tube double-cavity injection pump machanism as claimed in claim 1, it is characterised in that described lead screw motor
The screw mandrel of screw mandrel and single-tube double-cavity syringe pump share；The screw mandrel being connected with single-tube double-cavity syringe pump runs through after lead screw motor,
The gear run through again in transmission device, and the tail end of the screw mandrel runs through gear parts in flat, the tooth being connected with the screw mandrel
The intermediate throughholes of wheel are rectangle, so as to match with the tail end of screw mandrel, gear constitutes revolute pair with screw mandrel；Screw mandrel is in lead screw motor
In the presence of can be axially moveable, and slid axially in the gear hole, so as to drive injection shaft axially movable.
4. a kind of bi-motor single-tube double-cavity injection pump machanism as claimed in claim 1, it is characterised in that described axle sleeve medium
Entrance point and axle sleeve media outlet end are arranged on the centre position of pump housing side wall of shaft sleeve, and axle sleeve medium entrance end and axle sleeve medium
The port of export is symmetrical arranged.
5. a kind of bi-motor single-tube double-cavity injection pump machanism as claimed in claim 4, it is characterised in that on the injection shaft
Two groove locations are defined symmetrically by the center for injecting axis in axis.
6. a kind of bi-motor single-tube double-cavity injection pump machanism as described in claim 1,4 or 5, it is characterised in that in the middle of injection shaft
Through hole is provided with, screw mandrel runs through closely coupled with injection shaft through-hole madial wall after the through hole；It is beyond one end of injection shaft through close
Seal apparatus, and be tightly connected with sealing device.
7. a kind of bi-motor single-tube double-cavity injection pump machanism as claimed in claim 6, it is characterised in that described housing is set
Import and export corresponding with axle sleeve medium entrance end and axle sleeve media outlet end position is provided with outside pump housing axle sleeve, on housing
End；And the variation of travel direction as needed is capable of at the media outlet end on housing, specifically：It can be set according to direction in housing
Put medium import and export groove；The cylindrical hole inwall of housing is sealed with pump housing axle sleeve outer wall, and the inner bottom surface of cylindrical hole is played on housing
Seal the effect of the pump housing one end face of axle sleeve.
8. a kind of bi-motor single-tube double-cavity injection pump machanism as claimed in claim 7, it is characterised in that described sealing device
Sealing ring is inside provided with, the sealing ring is closely connected with screw mandrel, and sealing device and housing are by the closed assembly connection of fastener,
Play a part of sealing the pump housing one end face of axle sleeve.
9. a kind of bi-motor single-tube double-cavity injection pump machanism as claimed in claim 8, it is characterised in that described sealing device
On be provided with symmetrical medium spout hole so that the medium of spill and leakage can be flowed out without direct by spout hole on sealing device
Motor is reached by screw mandrel.
10. a kind of bi-motor single-tube double-cavity injection pump machanism as claimed in claim 1, it is characterised in that described pump housing axle sleeve
Material with injection shaft is ceramics.
11. a kind of bi-motor single-tube double-cavity injection pump machanism as claimed in claim 7, it is characterised in that described housing and close
Seal apparatus is metal material.
12. a kind of bi-motor single-tube double-cavity as described in claim 1,2,3,4,5,6,8,9 or 10 injects the use of pump machanism
Method, it is characterised in that comprise the following steps that：
Medium entrance end and media outlet end first on housing are close with external medium input unit and medium output device
Envelope connection；Control device starts transfer and operates and stop on reset direction, and now stop position is by steering sensing unit
Optocoupler block disk a line positioning；So-called reset direction, is the side medium cavity and axle sleeve being made up of sealing device
Groove connection of the media outlet end through injection shaft side, while opposite side groove and axle of the opposite side medium cavity through injection shaft
Cover the connection of medium entrance end；Two grooves of injection shaft are respectively just to axle sleeve medium entrance end and axle sleeve media outlet end；Control
Device starts lead screw motor and pulls injection shaft so that the axial lead screw motor direction movement of injection, by end face, a pump of injection shaft
The side cavity volume that body axle sleeve madial wall and sealing device are constituted diminishes, and chamber in-vivo medium is pumped out through groove；Meanwhile, it is another
The medium cavity volume of side becomes big, and groove of the medium through the side is inhaled into cavity；When lead screw motor pulls injection shaft walking to connect
During the end face of nearly sealing device, screw mandrel tail end triggering screw mandrel sensing unit, control device stops screw mandrel electricity according to this trigger signal
Machine, then starts transfer and operates and stop at resetting on direction in opposite direction, this stop position should be single by steering feeling
The optocoupler of member blocks the another a line positioning of disk；The so-called direction in opposite direction with reset, i.e., on the basis of resetting direction, turn to
Position after 180 ° of motion, now injection shaft grooves on two sides position completion is exchanged, originally the side just to axle sleeve medium entrance end
Groove becomes just to axle sleeve media outlet end, and medium is filled with the dielectric cavity now communicated with the groove and is gone out with axle sleeve medium
The connection of mouth end；Originally just the opposite side groove at axle sleeve media outlet end is become just to axle sleeve medium entrance end, with the groove phase
Logical dielectric cavity has emptied medium and connected with axle sleeve medium entrance end；Control device starts lead screw motor and antiport, will
Injection shaft pushes away lead screw motor direction, thus changes the volume of injection shaft both sides cavity, makes side cavity continue to pump out medium
Meanwhile, opposite side cavity suction medium starts the stroke of accumulative injection shaft and screw mandrel with timed unit；When injection shaft is pushed away from
When lead screw motor reaches setting stroke, control device stops lead screw motor, then starts transfer and operates and stop at again
Reset on direction；So move in circles, in addition to having of short duration stopping when transfer performs go to action, single-tube double-cavity injection
Pump machanism is sustainable constantly to pump out medium.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610078222.4A CN105673384B (en) | 2016-02-03 | 2016-02-03 | A kind of bi-motor single-tube double-cavity injects pump machanism |
| JP2018527955A JP6484765B2 (en) | 2016-02-03 | 2017-01-22 | Single tube double chamber injection pump, injection pump mechanism and operation method thereof |
| PCT/CN2017/072006 WO2017133507A1 (en) | 2016-02-03 | 2017-01-22 | Single-barrel dual-cavity injection pump, injection pump mechanism, and operating method |
| DE112017000634.1T DE112017000634B4 (en) | 2016-02-03 | 2017-01-22 | Single-tube double-chamber injection pump, injection pump mechanisms, injection pump drive and methods of their operation |
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| CN201610078222.4A CN105673384B (en) | 2016-02-03 | 2016-02-03 | A kind of bi-motor single-tube double-cavity injects pump machanism |
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| CN105673384A CN105673384A (en) | 2016-06-15 |
| CN105673384B true CN105673384B (en) | 2017-11-07 |
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| JP6484765B2 (en) * | 2016-02-03 | 2019-03-13 | 杭州科雷機電工業有限公司Ｈａｎｇｚｈｏｕ ＣＲＯＮ Ｍａｃｈｉｎｅｒｙ ＆ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．， Ｌｔｄ． | Single tube double chamber injection pump, injection pump mechanism and operation method thereof |
| CN106499606A (en) * | 2016-12-23 | 2017-03-15 | 大河泵业集团有限公司 | A kind of solar water pump water system |
| CN110486434A (en) * | 2019-09-12 | 2019-11-22 | 广州弘泽汽车科技有限公司 | A kind of sealing structure of electronic strut |
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| US4009971A (en) * | 1974-06-07 | 1977-03-01 | Binks Manufacturing Company | Electric motor-driven, double-acting pump having pressure-responsive actuation |
| CN203051014U (en) * | 2013-02-19 | 2013-07-10 | 宜昌天通泵业有限公司 | Single-cylinder grouting pump |
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