CN105715546B - A kind of single motor single pipe two-chamber injects pump machanism - Google Patents
A kind of single motor single pipe two-chamber injects pump machanism Download PDFInfo
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- CN105715546B CN105715546B CN201610075723.7A CN201610075723A CN105715546B CN 105715546 B CN105715546 B CN 105715546B CN 201610075723 A CN201610075723 A CN 201610075723A CN 105715546 B CN105715546 B CN 105715546B
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- clutch
- axle sleeve
- screw mandrel
- motor
- injection shaft
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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
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0448—Steel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
Abstract
The invention discloses a kind of single-tube double-cavity injection pump machanism (single motor).The present invention includes single-tube double-cavity syringe pump, lead screw motor, clutch apparatus, induction installation and control device；Clutch apparatus includes two electromagnetic clutch device assemblies and is arranged on the clutch-plate of two electromagnetic clutch inter-modules；Induction installation includes two optocoupler sensors being arranged on clutch-pedal support, and the screw mandrel of single-tube double-cavity syringe pump runs through lead screw motor, two electromagnetic clutch device assemblies and clutch-plate, and can arrive at the screw mandrel sensor for being arranged on afterbody, so as to trigger screw mandrel position signalling；The straight line base of sensor shielding plate among clutch-plate interlayer matches with flat filament face so that clutch-plate and screw mandrel form revolute pair, and sensor shielding plate is triggering rotating position signal.The present invention is simple in construction, moves back and forth and exchanges groove and the corresponding relation of inlet and outlet when turning to so that the syringe pump can keep continuing the ability of one direction output medium.
Description
Technical field
The invention belongs to field of mechanical technique, and in particular to a kind of single motor single pipe two-chamber 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 that syringe pump suction is situated between
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 exclude or the defects of greatly eliminate its intermittent work, hereby invent
This single-tube double-cavity injection pump machanism (single motor).
The content of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, there is provided a kind of single motor single pipe two-chamber 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 single motor single pipe two-chamber injects pump machanism, including single-tube double-cavity syringe pump, lead screw motor, clutch apparatus,
Induction installation and control device；Described clutch apparatus, including two electromagnetic clutch device assemblies and a clutch-plate, electromagnetism from
Clutch component is assembled by clutch-pedal support and fixed, and is fastened and assembled with lead screw motor；Close to lead screw motor side electromagnetism from
Clutch component is provided centrally with the rotor assembly connection formation revolute pair of a rotor, the rotor and lead screw motor, rotor
The rotor synchronous axial system in electromagnetic clutch device assembly will be driven during rotation；Clutch-plate is arranged on the centre of two electromagnetic clutch；
Described induction installation includes two optocoupler sensors, is installed on the diverse location of clutch-pedal support；Single-tube double-cavity syringe pump
Screw mandrel run through lead screw motor, two electromagnetic clutch device assemblies and clutch-plate, and the screw mandrel sensor for being arranged on afterbody can be arrived at,
So as to trigger screw mandrel position signalling；One section of the centre of the screw mandrel is in unilateral flat filament shape, the sensor inserted among clutch-plate interlayer
The straight line base of shielding plate matches with flat filament face so that clutch-plate forms revolute pair with screw mandrel, when clutch-plate wire winding rod axle rotates
Screw mandrel will be driven to do synchronous rotary motion；Sensor shielding plate is triggering rotating position signal；
Described clutch apparatus, including two electromagnetic clutch device assemblies and a clutch-plate.Two electromagnetic clutch groups
Part is controlled by the controller, any one electromagnetic clutch device assembly be powered after will produce electromagnetic field and adsorb clutch-plate it is in combination into
One.When clutch-plate and be provided with rotor electromagnetic clutch device assembly absorption it is integral when, its indirectly with lead screw motor turn
Son is integrally formed, and is rotated therewith under the driving of lead screw motor, so as to drive screw mandrel and injection shaft to follow silk together
Bar motor rotates.After the electromagnetic clutch device assembly of clutch-plate and opposite side is adsorbed, it forms one with clutch-pedal support indirectly
Body simultaneously keeps geo-stationary, so as to prevent the rotary motion of screw mandrel and injection shaft.
Described sensor shielding plate is semicircle, is fixedly installed in the interlayer of clutch-plate；Its radius is more than clutch-plate
Radius, therefore its part outside clutch-plate external diameter of protrusion can block optocoupler sensor so as to trigger signal.Work as screw mandrel
When motor rotates clutch-plate, sensor shielding plate concomitant rotation；The radial direction base of sensor shielding plate is separately positioned on clutch-plate
The both sides of external diameter, turn into two signal trigger points of sensor, at a distance of 180 ° of angle relations；Its central any a line passes through light
During coupling sensor, that is, corresponding signal is triggered, this signal controlled device is used for judging two stop positions in steering procedure.
Described screw mandrel sensor, the position being axially moveable for sensing screw mandrel；The screw mandrel in the presence of lead screw motor
Axially move, when the exposed end of screw mandrel triggers the optocoupler sensor, control device utilizes clutch apparatus and lead screw motor
Linkage, screw mandrel and injection shaft are rotated 180 °, axially moved again by lead screw motor drive screw toward opposite direction afterwards.
Described single-tube double-cavity syringe pump includes pump housing axle sleeve, injection shaft, housing and sealing device, and is opened on 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 is open and open end flushes with injection shaft both ends respectively；Injection shaft is arranged on pump housing axle sleeve
Interior, one end of pump housing axle sleeve is tightly connected with sealing device so that an end face of injection shaft, pump housing axle sleeve madial wall and close
Seal apparatus forms side cavity；Another end face, pump housing axle sleeve madial wall and the interior bottom with cylindrical hole on housing of injection shaft
Face forms another cavity, and the cylindrical and inner circle of pump housing axle sleeve of injection shaft is fitted close, and is separated by two cavitys.Injection shaft energy
Moved axially back and forth in pump housing axle sleeve interior edge, 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 among described injection shaft, screw mandrel is 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 housing and is gone out with axle sleeve medium entrance end and axle sleeve medium
Entrance end corresponding to 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 seals with pump housing axle sleeve outer wall,
The inner bottom surface of cylindrical hole plays a part of sealing one end face of pump housing axle sleeve on housing.
Seal ring assembly is provided with described sealing device, the seal ring assembly is closely connected with screw mandrel, and seals dress
Put with housing by the closed assembly connection of fastener, play a part of sealing one end face of pump housing axle sleeve.
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 application method of single motor single pipe two-chamber injection pump machanism, it is specific as follows：
Medium entrance end and media outlet end first on housing fill with external medium input unit and medium output
Put sealed connection.Control device is cooperated by clutch apparatus, lead screw motor and induction installation, and syringe pump is placed in into reset
On direction；So-called reset direction is the side medium cavity and axle sleeve media outlet end being made up of sealing device through injection shaft
The groove connection of certain side, while opposite side groove of the opposite side medium cavity through injection shaft connects with axle sleeve medium entrance end；
Two grooves difference face axle sleeve medium entrance end of injection shaft and axle sleeve media outlet end.Then, controller passes through clutch
Device pins screw mandrel axial direction rotational freedom, and pulls screw mandrel by lead screw motor and inject axial lead screw motor direction and move,
The side cavity volume being made up of an end face of injection shaft, pump housing axle sleeve madial wall and sealing device diminishes, and is situated between in cavity
Matter (mixture for having air or air and medium when initial) pumps out through groove；Meanwhile the medium cavity of opposite side (should
Dielectric cavity is formed by another end face of injection shaft, pump housing axle sleeve madial wall and with the inner bottom surface of cylindrical hole on housing) volume
Become big, and groove of the medium through the side is inhaled into cavity.When lead screw motor pulls injection shaft walking close to the end face of sealing device
When, simultaneously diversion signal occurs for the tail end triggering screw mandrel sensor of screw mandrel；Immediately, control device passes through clutch apparatus, screw mandrel
Motor and induction installation are cooperated so that screw mandrel and injection shaft are completed around 180 ° of axial rotation, injection shaft grooves on two sides position
Exchange, the side groove at originally face axle sleeve medium entrance end become face axle sleeve media outlet end, now communicated with the groove
Dielectric cavity in be filled with medium and connected with axle sleeve media outlet end；The originally opposite side groove at face axle sleeve media outlet end
Become face axle sleeve medium entrance end, the dielectric cavity communicated with the groove has emptied medium and connected with axle sleeve medium entrance end.
Then, controller pins screw mandrel axial direction rotational freedom by clutch apparatus again, by lead screw motor antiport, by silk
Bar and injection shaft push away lead screw motor direction, thus change the volume of injection shaft both sides cavity, make side cavity continue to pump out Jie
While matter, opposite side cavity suction medium, start to add up the stroke of injection shaft and screw mandrel with timed unit.When injection shaft quilt
When pushing away lead screw motor and reaching setting stroke, control device stops syringe pump and pumps out action；Control device implements go to action,
Cooperated by clutch apparatus, lead screw motor and induction installation, again will injection
Pump, which is arranged at, to be resetted on direction.So move in circles, in addition to having of short duration stopping when performing go to action, the list
Pump machanism is sustainable constantly pumps out medium for the injection of pipe two-chamber.
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 of inlet and outlet when turning to so that should
Syringe pump can keep continuing the ability of one direction output medium.
The control device and induction installation of the present invention, can accurately control clutch apparatus and lead screw motor, be alternately performed and turn
To action and the action of push-and-pull injection shaft and screw mandrel, the manipulation and operation to this kind of syringe pump are realized.
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 wear-resisting, rotates the small effect of resistance to sliding.
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 the overall structure axonometric drawing of the present invention；
Fig. 2 is the overall structure top view of the present invention；
Fig. 3 is the overall structure side view of the present invention；
Fig. 4 is the overall structure rearview of the present invention；
Fig. 5 is the overall structure sectional view of the present invention
In figure, clutch-pedal support 1, screw mandrel sensor 2, electromagnetic clutch device assembly I3, clutch-plate 4, sensor shielding plate 5,
Rotation direction sensor 6, electromagnetic clutch device assembly II7, lead screw motor 8, screw mandrel 9, sealing device 10, seal ring assembly 11, housing 12,
Pump housing axle sleeve 13, injection shaft 14.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, a kind of single motor single pipe two-chamber injects pump machanism, including single-tube double-cavity
Syringe pump, lead screw motor, clutch apparatus, induction installation and control device；As shown in Figure 1 and Figure 5, clutch apparatus includes electricity
Magnet clutch component I3, electromagnetic clutch device assembly II7 and a clutch-plate 4, electromagnetic clutch device assembly I3 and electromagnetic clutch group
Part II7 is assembled by clutch-pedal support 1 and fixed, and is fastened and assembled with lead screw motor 8；Close to the side of lead screw motor 8 electromagnetism from
Clutch component II7 is provided centrally with the rotor assembly connection formation revolute pair of a rotor, the rotor and lead screw motor, and motor turns
The rotor synchronous axial system in electromagnetic clutch device assembly II7 will be driven when son rotates；Clutch-plate 4 is arranged on electromagnetic clutch device assembly
I3, electromagnetic clutch device assembly II7 centre；Described induction installation includes two optocoupler sensors, i.e., screw mandrel sensor 2 and turns
To sensor 6, it is installed on the diverse location of clutch-pedal support, specifically as shown in Fig. 1,4 and 5：Screw mandrel sensor 2 is installed on
On Motionless electromagnetic clutch pack I3 clutch-pedal support, rotation direction sensor 6 is arranged on the clutch of the lower section of sensor shielding plate 5
On support；The screw mandrel 9 of single-tube double-cavity syringe pump sequentially passes through lead screw motor 8, electromagnetic clutch device assembly II7, clutch-plate 4 and electromagnetism
Clutch pack I3, and the screw mandrel sensor 2 for being arranged on afterbody can be arrived at, so as to trigger screw mandrel position signalling；The screw mandrel
Middle one section is in unilateral flat filament shape, straight line base and the flat filament face of the sensor shielding plate 5 inserted among the interlayer of clutch-plate 4
Match somebody with somebody so that clutch-plate 4 forms revolute pair with screw mandrel 9, and screw mandrel will be driven to do synchronous rotation when the wire winding rod of clutch-plate 4 rotates and transported
It is dynamic；Sensor shielding plate 5 is triggering rotating position signal；
As shown in Figure 1 and Figure 5, two electromagnetic clutch device assemblies in described clutch apparatus are controlled by the controller, control
Device processed will keep one and only one electromagnetic clutch device assembly to be powered, and any one electromagnetic clutch device assembly will produce electricity after being powered
Magnetic field and to adsorb clutch-plate 4 in combination integral.When clutch-plate 4 and the electromagnetic clutch device assembly II7 for being provided with rotor adsorb
When integral, it is integrally formed with the rotor of lead screw motor indirectly, and is rotated therewith under the driving of lead screw motor,
So as to drive screw mandrel and injection shaft 14 to follow lead screw motor to rotate together.When the electromagnetic clutch device assembly of clutch-plate 4 and opposite side
After I3 absorption, it is integrally formed with clutch-pedal support and keeps geo-stationary indirectly, so as to prevent screw mandrel and injection shaft 14
Rotary motion.
Described sensor shielding plate is semicircle, is fixedly installed in the interlayer of clutch-plate 4；Its radius is more than clutch-plate
4 radius, therefore its part of protrusion outside the external diameter of clutch-plate 4 can block optocoupler sensor so as to trigger signal.Work as silk
When bar motor rotates clutch-plate 4, sensor shielding plate concomitant rotation；The radial direction base of sensor shielding plate is separately positioned on clutch
The both sides of the external diameter of piece 4, turn into two signal trigger points of sensor, at a distance of 180 ° of angle relations；Its central any a line warp
When crossing optocoupler sensor, that is, corresponding signal is triggered, this signal controlled device is used for judging two stoppings in steering procedure
Position.
Described screw mandrel sensor 2, the position being axially moveable for sensing screw mandrel；The screw mandrel in the presence of lead screw motor
Axially move, when the exposed end of screw mandrel triggers the optocoupler sensor, control device utilizes clutch apparatus and lead screw motor
Linkage, screw mandrel and injection shaft 14 are rotated 180 °, axial fortune is done toward opposite direction by lead screw motor drive screw again afterwards
It is dynamic.
Described single-tube double-cavity syringe pump includes pump housing axle sleeve 13, injection shaft 14, housing 12 and sealing device 10, and the pump housing
Axle sleeve medium entrance end and axle sleeve media outlet end are provided with axle sleeve 13；The lateral wall of injection shaft 14 is provided with the recessed of two strips
Groove, and one end of two grooves is closed, the other end is open and open end flushes with the both ends of injection shaft 14 respectively；Injection shaft 14
It is arranged in pump housing axle sleeve 13, one end and the sealing device of pump housing axle sleeve 13 are tightly connected so that an end face of injection shaft 14,
The madial wall of pump housing axle sleeve 13 and sealing device 10 form side cavity；In another end face of injection shaft 14, pump housing axle sleeve 13
Side wall and form another cavity with the inner bottom surface of cylindrical hole on housing 12, injection shaft 14 it is cylindrical interior with pump housing axle sleeve 13
Circle is fitted close, and is separated by two cavitys.Injection shaft 14 can move axially back and forth in the interior edge of pump housing axle sleeve 13, so as to change two
The volume of cavity.
Described axle sleeve medium entrance end and axle sleeve media outlet end is arranged on the centre position of the side wall of pump housing axle sleeve 13, and
Axle sleeve medium entrance end and axle sleeve media outlet end are symmetrical arranged.Two groove locations on the injection shaft 14 are with injection shaft 14
The center of axis is defined symmetrically.Be provided with through hole among described injection shaft 14, screw mandrel run through after the through hole with the through hole of injection shaft 14
Madial wall is closely coupled；It runs through sealing device 10 beyond one end of injection shaft 14, and is tightly connected with sealing device 10.
Described housing 12 is arranged on outside pump housing axle sleeve 13, is provided with housing 12 and axle sleeve medium entrance end and axle sleeve
Entrance end corresponding to media outlet end position；And the change of travel direction as needed is capable of at the medium inlet and outlet end on housing 12
It is dynamic, specifically：Medium import and export groove can be set in housing 12 according to direction.The cylindrical hole inwall of housing 12 and pump housing axle
Cover 13 outer walls to seal, the inner bottom surface of cylindrical hole plays a part of sealing 13 1 end faces of pump housing axle sleeve on housing 12.
Seal ring assembly 11 is provided with described sealing device 10, the seal ring assembly 11 is closely connected with screw mandrel, and
Sealing device 10, by the closed assembly connection of fastener, plays a part of sealing 13 1 end faces of pump housing axle sleeve with housing 12.
Described pump housing axle sleeve 13 and the material of injection shaft 14 are ceramics.Described housing 12 and sealing device 10 be
Metal material, preferably metallic aluminium and steel.
A kind of application method of single motor single pipe two-chamber injection pump machanism, it is specific as follows：
Medium entrance end and media outlet end first on housing 12 export with external medium input unit and medium
Device is tightly connected.Control device is cooperated by clutch apparatus, lead screw motor and induction installation, syringe pump is placed in multiple
On the direction of position；So-called reset direction is the side medium cavity and axle sleeve media outlet end being made up of sealing device 10 through note
Penetrate the groove connection of certain side of axle 14, while opposite side groove of the opposite side medium cavity through injection shaft 14 and axle sleeve medium entrance
End connection；Two grooves difference face axle sleeve medium entrance end of injection shaft 14 and axle sleeve media outlet end.Then, controller leads to
Cross clutch apparatus and pin screw mandrel axial direction rotational freedom, and screw mandrel and injection shaft 14 are pulled to lead screw motor by lead screw motor
Direction is moved, and the side cavity being made up of an end face, the madial wall of pump housing axle sleeve 13 and the sealing device 10 of injection shaft 14 holds
Product diminishes, and chamber in-vivo medium (mixture for having air or air and medium when initial) pumps out through groove；It is meanwhile another
(dielectric cavity is by another end face of injection shaft 14, the madial wall of pump housing axle sleeve 13 and with justifying on housing 12 for the medium cavity of side
The inner bottom surface of post holes is formed) volume becomes big, and groove of the medium through the side is inhaled into cavity.When lead screw motor pulls injection shaft 14
When walking close to the end face of sealing device 10, simultaneously diversion signal occurs for the tail end triggering screw mandrel sensor 2 of screw mandrel；Immediately, control
Device processed is cooperated by clutch apparatus, lead screw motor and induction installation so that screw mandrel 9 and injection shaft 14 are around axial rotation
180 °, exchange is completed in the grooves on two sides position of injection shaft 14, and the side groove at originally face axle sleeve medium entrance end becomes face axle
Media outlet end is covered, medium is filled with the dielectric cavity now communicated with the groove and is connected with axle sleeve media outlet end；Originally
The opposite side groove at face axle sleeve media outlet end becomes face axle sleeve medium entrance end, and the dielectric cavity communicated with the groove has been arranged
Empty medium simultaneously connects with axle sleeve medium entrance end.Then, controller pins screw mandrel axial rotation by clutch apparatus certainly again
By spending, by lead screw motor antiport, screw mandrel 9 and injection shaft 14 are pushed away into lead screw motor direction, thus change injection shaft 14
The volume of both sides cavity, while the side cavity is continued to pump out medium, opposite side cavity suction medium, opened with timed unit
The stroke of beginning accumulative injection shaft 14 and screw mandrel 9.When injection shaft 14, which pushed away from lead screw motor, reaches setting stroke, control device stops
Only syringe pump pumps out action；Control device implements go to action, is cooperateed with by clutch apparatus, lead screw motor and induction installation
Work, syringe pump is arranged at resetted on direction again.So move in circles, except having of short duration stopping when performing go to action
Outside, pump machanism is sustainable constantly pumps out medium for single-tube double-cavity injection.
Claims (12)
1. a kind of single motor single pipe two-chamber injects pump machanism, it is characterised in that including single-tube double-cavity syringe pump, lead screw motor, clutch
Device device, induction installation and control device；Clutch apparatus includes two electromagnetic clutch device assemblies and a clutch-plate, electromagnetism from
Clutch component is assembled by clutch-pedal support and fixed, and is fastened and assembled with lead screw motor；Two electromagnetic clutch device assemblies are controlled
Device controls, and electromagnetic field will be produced after being powered for any one electromagnetic clutch device assembly and to adsorb clutch-plate in combination integral；
And the electromagnetic clutch device assembly close to lead screw motor side is provided centrally with the rotor dress of a rotor, the rotor and lead screw motor
Revolute pair is formed with connection, the rotor synchronous axial system in electromagnetic clutch device assembly will be driven when rotor rotates；Clutch-plate is set
Put in the centre of two electromagnetic clutch；Induction installation includes two optocoupler sensors, i.e. screw mandrel sensor and rotation direction sensor,
It is respectively arranged on the diverse location of clutch-pedal support；The screw mandrel of single-tube double-cavity syringe pump through lead screw motor, two electromagnetism from
Clutch component and clutch-plate, and the screw mandrel sensor for being arranged on single-tube double-cavity syringe pump afterbody can be arrived at, so as to trigger screw mandrel position
Confidence number；One section of the centre of the screw mandrel is in unilateral flat filament shape, the straight line bottom of the sensor shielding plate inserted among clutch-plate interlayer
Side matches with flat filament face so that clutch-plate forms revolute pair with screw mandrel, when clutch-plate wire winding rod axle rotates screw mandrel will be driven to do together
The rotary motion of step；Sensor shielding plate is triggering rotating position signal.
2. a kind of single motor single pipe two-chamber injection pump machanism according to claim 1, it is characterised in that when clutch-plate is with setting
Be equipped with rotor the absorption of electromagnetic clutch device assembly it is integral when, it is integrally formed with the rotor of lead screw motor indirectly, and in silk
Rotated therewith under the driving of bar motor, so as to drive screw mandrel and injection shaft to follow lead screw motor to rotate together, injection shaft
It is arranged in pump housing axle sleeve；After the electromagnetic clutch device assembly of clutch-plate and opposite side is adsorbed, its indirectly with clutch-pedal support
It is integrally formed and keeps geo-stationary, so as to which the rotary motion of screw mandrel and injection shaft can be prevented.
A kind of 3. single motor single pipe two-chamber injection pump machanism according to claim 2, it is characterised in that described sensor
Shielding plate is semicircle, is fixedly installed in the interlayer of clutch-plate；Its radius be more than clutch-plate radius, therefore its protrusion from
Optocoupler sensor can be blocked so as to trigger signal by closing the part outside piece external diameter.
4. according to Claims 2 or 3 a kind of single motor single pipe two-chamber injection pump machanism, it is characterised in that when clutch-plate with
Be provided with rotor the absorption of electromagnetic clutch device assembly it is integral when, lead screw motor rotates clutch-plate, and sensor shielding plate turns therewith
It is dynamic；The radial direction base of sensor shielding plate is separately positioned on the both sides of clutch-plate external diameter, turns into two signals of rotation direction sensor
Trigger point, at a distance of 180 ° of angle relations；When its central any a line passes through optocoupler sensor, that is, corresponding signal is triggered, this
Signal controlled device is used for judging two stop positions in steering procedure.
A kind of 5. single motor single pipe two-chamber injection pump machanism according to claim 1,2 or 3, it is characterised in that described silk
Bar sensor, the position being axially moveable for sensing screw mandrel；Screw mandrel axially moves in the presence of lead screw motor, works as screw mandrel
Exposed end when triggering the optocoupler sensor, control device using clutch apparatus and lead screw motor linkage, by screw mandrel and note
Penetrate axle and rotate 180 °, axially moved again by lead screw motor drive screw toward opposite direction afterwards.
A kind of 6. single motor single pipe two-chamber injection pump machanism according to claim 1,2 or 3, it is characterised in that described list
Pipe two-chamber syringe pump includes pump housing axle sleeve, injection shaft, housing and sealing device, and axle sleeve medium entrance end is provided with pump housing axle sleeve
With axle sleeve media outlet end；The lateral wall of injection shaft is provided with the groove of two strips, and one end of two grooves is closed, separately
One end is open and open end flushes with injection shaft both ends respectively；Injection shaft is arranged in pump housing axle sleeve, one end of pump housing axle sleeve
It is tightly connected with sealing device so that an end face, pump housing axle sleeve madial wall and the sealing device of injection shaft form a side chamber
Body；Another end face of injection shaft, pump housing axle sleeve madial wall and another cavity is formed with the inner bottom surface of cylindrical hole on housing,
The cylindrical and inner circle of pump housing axle sleeve of injection shaft is fitted close, and is separated by two cavitys；Injection shaft can be in pump housing axle sleeve interior edge axle
Move forwards, backwards, so as to change the volume of two cavitys.
7. a kind of single motor single pipe two-chamber injection pump machanism according to claim 6, it is characterised in that described axle sleeve is situated between
Matter 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 are situated between
The matter port of export is symmetrical arranged；Two groove locations on the injection shaft are defined symmetrically by injecting the center of axis in axis；Described
Through hole is provided among injection shaft, screw mandrel is closely coupled with injection shaft through-hole madial wall after the through hole；It is beyond injection shaft
Sealing device is run through in one end, and is tightly connected with sealing device.
8. a kind of single motor single pipe two-chamber injection pump machanism according to claim 6, it is characterised in that described housing is set
Put outside pump housing axle sleeve, inlet and outlet corresponding with axle sleeve medium entrance end and axle sleeve media outlet end position are provided with housing
End；And the variation of travel direction as needed is capable of at the medium inlet and outlet end on housing, specifically：Can be according to direction in housing
Medium import and export groove is set；The cylindrical hole inwall of housing seals with pump housing axle sleeve outer wall, and the inner bottom surface of cylindrical hole rises on housing
To the effect of one end face of sealing pump housing axle sleeve.
A kind of 9. single motor single pipe two-chamber injection pump machanism according to claim 6, it is characterised in that described sealing dress
Seal ring assembly is provided with putting, the seal ring assembly is closely connected with screw mandrel, and sealing device and housing are close by fastener
Assembly connection is closed, plays a part of sealing one end face of pump housing axle sleeve.
A kind of 10. single motor single pipe two-chamber injection pump machanism according to claim 6, it is characterised in that described pump housing axle
The material of set and injection shaft is ceramics.
A kind of 11. single motor single pipe two-chamber injection pump machanism according to claim 6, it is characterised in that described housing and
Sealing device is metal material.
12. a kind of application method of single motor single pipe two-chamber injection pump machanism according to claim 7, specific as follows：
Medium entrance end and media outlet end first on housing is close with external medium input unit and medium output device
Envelope connection；Control device is cooperated by clutch apparatus, lead screw motor and induction installation, and syringe pump is placed in and resets direction
On；So-called reset direction, it is that the side medium cavity that is made up of sealing device and axle sleeve media outlet end are a certain through injection shaft
The groove connection of side, while opposite side groove of the opposite side medium cavity through injection shaft connects with axle sleeve medium entrance end；Injection
Two grooves difference face axle sleeve medium entrance end of axle and axle sleeve media outlet end；Then, control device passes through clutch device
Put and pin screw mandrel axial direction rotational freedom, and pull screw mandrel by lead screw motor and inject axial lead screw motor direction and move, by
The side cavity volume that an end face, pump housing axle sleeve madial wall and the sealing device of injection shaft are formed diminishes, chamber in-vivo medium
Pumped out through groove；Meanwhile the medium cavity volume of opposite side becomes big, and groove of the medium through the side is inhaled into cavity；Work as screw mandrel
When motor pulling injection shaft is walked close to the end face of sealing device, the tail end triggering screw mandrel sensor of screw mandrel and the letter turned to
Number；Immediately, control device passes through clutch apparatus, lead screw motor and induction installation and cooperated so that screw mandrel and injection shaft around
Exchange is completed in 180 ° of axial rotation, injection shaft grooves on two sides position, and the side groove at originally face axle sleeve medium entrance end becomes
Face axle sleeve media outlet end, medium is filled with the dielectric cavity now communicated with the groove and is connected with axle sleeve media outlet end
It is logical；Originally the opposite side groove at face axle sleeve media outlet end becomes face axle sleeve medium entrance end, Jie communicated with the groove
Matter chamber has emptied medium and connected with axle sleeve medium entrance end；Then, control device pins screw mandrel again by clutch apparatus
The axial rotation free degree, by lead screw motor antiport, screw mandrel and injection shaft are pushed away into lead screw motor direction, thus change note
The volume of axle both sides cavity is penetrated, while the side cavity is continued to pump out medium, opposite side cavity suction medium, while control dress
Put the stroke for starting accumulative injection shaft and screw mandrel；When injection shaft, which pushed away from lead screw motor, reaches setting stroke, control device stops
Only syringe pump pumps out action；Control device implements go to action, is cooperateed with by clutch apparatus, lead screw motor and induction installation
Work, syringe pump is arranged at resetted on direction again；So move in circles, except having of short duration stopping when performing go to action
Outside, pump machanism is sustainable constantly pumps out medium for single-tube double-cavity injection.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075723.7A CN105715546B (en) | 2016-02-03 | 2016-02-03 | A kind of single motor single pipe two-chamber 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 |
| DE112017000637.6T DE112017000637T5 (en) | 2016-02-03 | 2017-01-22 | A digital color box for a printing press and a digital ink supply system and its application 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 |
| PCT/CN2017/072008 WO2017133508A1 (en) | 2016-02-03 | 2017-01-22 | Digital ink fountain for printing machine, digital ink supply system and usage thereof |
| PCT/CN2017/072006 WO2017133507A1 (en) | 2016-02-03 | 2017-01-22 | Single-barrel dual-cavity injection pump, injection pump mechanism, and operating method |
| US16/075,115 US10919290B2 (en) | 2016-02-03 | 2017-01-22 | Digital ink duct for a press, digital ink supply system and application method thereof |
| JP2018527965A JP6719847B2 (en) | 2016-02-03 | 2017-01-22 | How to use the ink supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075723.7A CN105715546B (en) | 2016-02-03 | 2016-02-03 | A kind of single motor single pipe two-chamber injects pump machanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105715546A CN105715546A (en) | 2016-06-29 |
| CN105715546B true CN105715546B (en) | 2017-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610075723.7A Active CN105715546B (en) | 2016-02-03 | 2016-02-03 | A kind of single motor single pipe two-chamber injects pump machanism |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE112017000634B4 (en) * | 2016-02-03 | 2022-09-29 | Hangzhou Cron Machinery & Electronics Co., Ltd. | Single-tube double-chamber injection pump, injection pump mechanisms, injection pump drive and methods of their operation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5674204A (en) * | 1995-09-19 | 1997-10-07 | Becton Dickinson And Company | Medication delivery pen cap actuated dose delivery clutch |
| JP5231872B2 (en) * | 2008-06-03 | 2013-07-10 | テルモ株式会社 | Syringe pump |
| GB0910681D0 (en) * | 2009-06-19 | 2009-08-05 | Ucb Pharma Sa | Auto-injector |
| GB0918145D0 (en) * | 2009-10-16 | 2009-12-02 | Owen Mumford Ltd | Injector apparatus |
| CN105031765B (en) * | 2015-08-25 | 2018-11-13 | 苏州麦德迅医疗科技有限公司 | Syringe pump |
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