CN203783840U - Precision metering liquid charging pump with ceramic plunger - Google Patents
Precision metering liquid charging pump with ceramic plunger Download PDFInfo
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- CN203783840U CN203783840U CN201420203605.6U CN201420203605U CN203783840U CN 203783840 U CN203783840 U CN 203783840U CN 201420203605 U CN201420203605 U CN 201420203605U CN 203783840 U CN203783840 U CN 203783840U
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- ball spline
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- 239000011148 porous material Substances 0.000 claims description 22
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a precision metering liquid charging pump with a ceramic plunger. The precision metering liquid charging pump structurally comprises a pump head, two one-way valves, a pump body, a driving mechanism and a control driving unit, wherein the one-way valves are connected to threaded holes in the pump head through threads on an upper valve seat and a lower valve cap; the pump head is fastened on a driving housing by passing hexagon socket screws through four through holes and a pump housing; a motor seat is fastened on the driving housing by passing hexagon socket screws through four through holes; a driving motor is fastened on the motor seat by passing hexagon socket screws through four through holes; one end of a plunger core in the pump body is connected with the internal thread of a floating joint in the driving mechanism through an external thread; the driving mechanism is connected with the control driving unit. The liquid charging pump is corrosion-resistant and wear-resistant; as no impurity exists in ceramic, a liquid medicine is prevented from being polluted during a liquid injection process; the surface of ceramic is very low in roughness to facilitate on-line cleaning; the precision and speed are improved.
Description
Technical field
The utility model relates to a kind of topping-up pump, specifically a kind of delicate metering ceramic plunger topping-up pump.
Background technique
Metering pump, especially comparatively accurate metering pump, with its highi degree of accuracy control fluid metering and stronger corrosion resistance, has been widely used in the perfusion equipment in fields such as comprising pharmacy, biological reagent and petroleum chemical industry.Existing metering pump generally comprises drive motor, driving end and fluid end three parts, stroke speed and the length of stroke of what output flow had depend on driving end, the rotating speed that depends on drive motor having and the diameter of peristaltic tube, can, by the control parameter of drive motor to change stroke speed and length of stroke or drive motor rotating speed, reach the object that changes flow in pump halted state.Present metering pump, through constantly development improvement, has formed plunger, barrier film and three shape of products that technology is main flow of conduit wriggling.Ripe motivational drive mode and fluid end material technology make the application area of current metering pump very extensive.But, plunger metering pump in the market, conventionally and seal ring friction, the life-span is short, easily produces impurity, causes institute's fluid injection body contaminated for its plunger.Or some plunger pump needs manual tune pump head angle to change plunger stroke, thereby change liquid measure, or some plunger pump changes liquid measure by the distance that changes plunger tail and cam, these all will cause the precision aspect can not be fully up to expectations, especially automatic filling equipment, to having relatively high expectations of precision, general metering pump cannot meet the demands.Moreover, some ceramic plunger pumps, pottery processing is comparatively complicated, and cost is high.In addition, general metering pump, because velocity of plunger control is bad or one-way valve non-return weak effect completes moment in fluid injection and can produce that secondary fluid injection or fluid drips are hung or liquid recoil, causes packaging seal to speckle with liquid, and sealing was lost efficacy or packed contaminated.And some plunger pumps adopt motor to drive torsion is provided, and complete the conversion of torsion to push-pull effort by spline, spline housing, leading screw and feed screw nut, this kind of structure abrasion is serious, cannot keep for a long time precision.Finally, the current metering pump life-span is short, and operation needs lubricated, and automaticity is low, and transmission efficiency is low, regulates inconvenient.
Model utility content
The purpose of this utility model is to provide a kind of delicate metering ceramic plunger topping-up pump, and this topping-up pump is anticorrosive wear-resisting, has solved impurity and has produced and short problem of life-span, has solved the problem that needs to add oiling agent between plunger and seal ring simultaneously.In addition, because pottery is not sneaked into impurity, ensure that liquid is not contaminated in fluid injection process, and ceramic surface roughness is very low, is easy to on-line cleaning; Precision and speed are improved.
The technical scheme in the invention for solving the technical problem is: a kind of delicate metering ceramic plunger topping-up pump, its structure comprises pump head, two one-way valves, the pump housing, driving mechanism and control driver elements, described one-way valve is by being threadedly connected in the tapped hole in pump head on upper valve base and bottom flange, and pump head passes four through holes by bolt and pump housing shell is anchored on cover of driver; Motor cabinet passes four through holes by bolt and is anchored on cover of driver, and drive motor passes four through holes by bolt and is anchored on motor cabinet; In the pump housing, plug core one end is connected with the internal thread of floating junction in driving mechanism by outside thread, and driving mechanism is connected with control driver element.
Described one-way valve comprises one-way valve bonnet, one-way valve upper valve base, spool, pagoda spring, O RunddichtringO, described one-way valve upper valve base and one-way valve bonnet joint are provided with the 3rd O RunddichtringO mounting groove, described one-way valve upper valve base and pump head joint are provided with the 4th O RunddichtringO mounting groove, and described spool two ends are respectively provided with three roads is convenient to the spool arc groove of liquid communication.
In described pump head, be provided with cavity volume, be respectively arranged with tapped hole at the two ends up and down of pump head, between two tapped hole diapires, be provided with intercommunicating pore, described intercommunicating pore is near the bottom of cavity volume.
The described pump housing comprises pump housing shell, the first ceramics pole plug sleeve support, the second ceramics pole plug sleeve support, ceramics pole plug sleeve, ceramic plunger and plug core, described plug core is installed in the hole of ceramic plunger, plug core is provided with the 5th O RunddichtringO mounting groove, described ceramic plunger is positioned in ceramics pole plug sleeve, the second described ceramics pole plug sleeve support and the first ceramics pole plug sleeve support are installed on respectively the two ends of ceramics pole plug sleeve, symmetrical; The second described ceramics pole plug sleeve support and be respectively equipped with an O RunddichtringO mounting groove and the 2nd O RunddichtringO mounting groove above the first ceramics pole plug sleeve support; The second described ceramics pole plug sleeve support embeds in the cavity volume macropore on pump head.
Described ceramic plunger and ceramics pole plug sleeve adopt Spielpassung.
Described driving mechanism comprises cover of driver, motor cabinet, drive motor, coupling, clamping nut, pairing angular contact bearing, lining, leading screw, feed screw nut, ball spline, ball spline cover, steel ball, floating junction, rotation stopping screw and back-up ring;
Described cover of driver is connected fastening with motor cabinet by fourth hole with bolt, described motor cabinet is connected fastening with drive motor by the second through hole with bolt, leading screw passes through coupling, be connected with drive motor, on described leading screw, cover has lining, on lining, cover has pairing angular contact bearing, and compresses by clamping nut; Described pairing angular contact bearing is flush-mounted in the hole between cover of driver and motor cabinet; Described leading screw one end is provided with feed screw nut, and feed screw nut, by third through-hole, is connected fastening by screw with ball spline; Described ball spline outer surface is provided with three road the second arc grooves, described San road arc groove becomes circumference symmetrical, ball spline cover internal surface is also provided with three roads and becomes the symmetrical three-arc groove of circumference, described three-arc groove coordinates with the second arc groove, and in per pass the second arc groove and three-arc groove, three stainless shots is housed; Back-up ring is equipped with in one end of described ball spline, and described back-up ring is connected and is anchored on ball spline by floating junction, and floating junction is connected with ceramic plunger, fastening by plug core; Described ball spline cover is flush-mounted in the step hole of cover of driver, and one end embeds in pump housing shell, the outer surface of ball spline cover is processed with the 3rd elongated pore, and the 3rd described elongated pore coordinates with the tip of rotation stopping screw, and described rotation stopping screw is anchored on cover of driver;
Described cover of driver is provided with peep hole and the second elongated pore, and described motor cabinet is provided with the first elongated pore.
Described control driver element comprises switch power, controller, driver, sensor, and described sensor is connected with controller, and described switch power is connected with driver with controller.
The beneficial effects of the utility model are: pump head structure is not deposited bubble, ensure precision.One-way valve structures has solved extension liquid problem.Ceramic plunger, ceramic plunger nested structure, extended working life, and processing is become easily, and also health more simultaneously, has avoided the generation of impurity.The use of air supported head, makes the concentricity and the straightness accuracy that between driving mechanism and the pump housing, are connected require to reduce, and has reduced the wearing and tearing of ceramic plunger, has extended the life-span.The structure of ball spline and ball spline cover, has extended working life of driving mechanism, has also ensured precision simultaneously.The use of pairing angular contact bearing, has reduced axial internal clearance, has improved precision.Drive motor can be stepper motor, can be also actuating motor, and joining leading screw and feed screw nut with it can be realized high-precision motion conversion.The use of controller, makes operation become simple, only needs input parameter can change fluid injection speed and liquid measure, without the artificial mechanical part that regulates.The use of approach switch, the requirement in the source to signal reduces, and can in the pure mechanical machine that there is no electrical signal, compatibility use, and makes productive temp consistent.The utility model metering pump can be widely used in the field such as pharmaceuticals industry, papermaking printing industry, electronic product manufacturing, cosmetics manufacturing, food manufacturing industry and chemistry, in low viscous filling liquid, convenient embedding installed.
Brief description of the drawings
Accompanying drawing 1 is the utility model perspective view;
Accompanying drawing 2 is the utility model decomposing state structural representation;
Accompanying drawing 3 is the utility model generalized section;
Accompanying drawing 4 is the cross-sectional view of one-way valve in the utility model;
Accompanying drawing 5 is the perspective view of spool in the utility model;
Accompanying drawing 6 is the cross-sectional view of pump head in the utility model;
Accompanying drawing 7 is the cross-sectional view of the utility model middle pump body;
Accompanying drawing 8 is the cross-sectional view of driving mechanism in the utility model;
Accompanying drawing 9 is the perspective view of ball spline in the utility model;
Accompanying drawing 10 is the perspective view of ball spline cover in the utility model;
Accompanying drawing 11 is the structural representation of ball spline pair in the utility model;
Accompanying drawing 12 is the A-A cross-sectional view of ball spline pair in the utility model;
Accompanying drawing 13 is the utility model electrical equipment connection diagram.
In figure: one-way valve bonnet 1, pump head 2, pump housing shell 3, cover of driver 4, motor cabinet 5, drive motor 6, the first elongated pore 7, the second elongated pore 8, peep hole 9, rotation stopping screw 10, the first through hole 11, the second through hole 12, pagoda spring 13, spool 14, plug core 15, the first ceramics pole plug sleeve support 16, ceramics pole plug sleeve 17, the second ceramics pole plug sleeve support 18, ceramic plunger 19, floating junction 20, back-up ring 21, lining 22, pairing angular contact bearing 23, clamping nut 24, coupling 25, leading screw 26, feed screw nut 27, ball spline 28, ball spline cover 29, one-way valve upper valve base 30, one-way valve bottom flange 31, one-way valve lower valve base 32, O RunddichtringO 33, the conical surface 34, the first arc groove 35, tapped hole 36, intercommunicating pore 37, cavity volume 38, the one O RunddichtringO mounting groove 39, the 2nd O RunddichtringO mounting groove 40, the 3rd O RunddichtringO mounting groove 41, the 4th O RunddichtringO mounting groove 42, the 5th O RunddichtringO mounting groove 43, third through-hole 44, the second arc groove 45, three-arc groove 46, steel ball 47, the 3rd elongated pore 48, fourth hole 49.
Embodiment
With reference to Figure of description, a kind of delicate metering ceramic plunger topping-up pump of the present utility model is described in detail below.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of delicate metering ceramic plunger topping-up pump of the present utility model, comprise pump head 2, two one-way valves, the pump housing, driving mechanism and control driver elements, described one-way valve is by being threadedly connected in the tapped hole in pump head 2 on upper valve base and bottom flange, and pump head 2 passes four through holes by hexagon socket head cap screw and pump housing shell 3 is anchored on cover of driver 4; Motor cabinet 5 is by being anchored on cover of driver 4 through four through holes with hexagon socket head cap screw, and drive motor 6 passes four through holes by hexagon socket head cap screw and is anchored on motor cabinet 5; In the pump housing, plug core 15 one end are connected with the internal thread of floating junction in driving mechanism 20 by outside thread, and driving mechanism is connected with control driver element.In the pump housing (Fig. 7), plug core 15 one end are connected with the internal thread of floating junction 20 in driving mechanism (Fig. 8) by outside thread, have reduced the concentricity requirement between ball spline 28 and plug core 15, so reduced difficulty of processing.
As shown in Figure 4, described one-way valve comprises one-way valve bonnet 1, one-way valve upper valve base 30, spool 14 (Fig. 5), pagoda spring 13, O RunddichtringO 33, described one-way valve upper valve base 30 is provided with the 3rd O RunddichtringO mounting groove 41 with one-way valve bonnet joint, described one-way valve upper valve base 30 is provided with the 4th O RunddichtringO mounting groove 42 with pump head 2 joints, plays seal action.Described spool 14 two ends are respectively provided with three roads is convenient to the spool arc groove of liquid communication.
As shown in Figure 6, be provided with cavity volume 38 in described pump head, be respectively arranged with tapped hole 36 at the two ends up and down of pump head 2, between two tapped hole 36 diapires, be provided with intercommunicating pore 37, described intercommunicating pore 37 is near the bottom of cavity volume 38.
Taking one-way valve bonnet 1 and one-way valve upper valve base 30 as example, the spool 14 that O RunddichtringO 33 and pagoda spring 13 are housed is crushed between the two, wherein O RunddichtringO 33 is pressed on the conical surface 34 by pagoda spring 13, play the effect of one-way sealing, when fluid pressure in cavity volume 38 is malleation and while being greater than the pressure of pagoda spring 13, spool 14 is by jack-up, and liquid flows out from spool the first arc groove 35.In like manner, when the pressure in cavity volume 38 is negative pressure, and the absolute value of negative pressure is while being greater than the elastic force of pagoda spring 13, upper one-way valve non-return, and the spool 14 in lower one-way valve is by jack-up, and liquid flows into cavity volume 38 from spool the first arc groove 35.Wherein, the use of pagoda spring 13, spool 14 and the concentricity of one-way valve upper valve base 30 are improved, ensure the smoothness of 14 times motions on spool, can there is not too much friction with one-way valve upper valve base 30 and one-way valve bonnet 1, accelerate the speed of response of one-way sealing, so control becomes more accurate for liquid.In addition, due to the special construction of one-way valve, when fluid injection finishes, spool 14 falls after rise, produces small pressure reduction, and fluid injection trace sucks back, and at fluid injection water outlet, produces small crater, makes reservoir channel end very clean, and dripless hangs.
As shown in Figure 7, the described pump housing comprises pump housing shell 3, the first ceramics pole plug sleeve support 16, the second ceramics pole plug sleeve support 18, ceramics pole plug sleeve 17, ceramic plunger 19 and plug core 15, described plug core 15 is installed in the hole of ceramic plunger 19, plug core 15 is provided with the 5th O RunddichtringO mounting groove 43, described ceramic plunger 19 is positioned in ceramics pole plug sleeve 17, the second described ceramics pole plug sleeve support 18 and the first ceramics pole plug sleeve support 16 are installed on respectively the two ends of ceramics pole plug sleeve 17, symmetrical; The second described ceramics pole plug sleeve support 18 and the first ceramics pole plug sleeve support 16 are respectively equipped with an O RunddichtringO mounting groove 39 and the 2nd O RunddichtringO mounting groove 40 above; The second described ceramics pole plug sleeve support 18 embeds in the cavity volume macropore on pump head.The second ceramics pole plug sleeve support 18 is identical with the first ceramics pole plug sleeve support 16 structures.
Described ceramic plunger 19 and ceramics pole plug sleeve 17 adopt Spielpassung, the viscous resistance sealing by liquid at ceramic plunger 19 outer surfaces and ceramics pole plug sleeve 17 internal surfaces.And ceramic hardness is large, very wear-resisting, so the life-span is very long.The ceramic plunger 19 of this kind of structure and the structure of ceramics pole plug sleeve 17 are very simple, have reduced difficulty of processing.Because be stupalith, thus corrosion-resistant, applied range.
As shown in Figure 8, described driving mechanism comprises cover of driver 4, motor cabinet 5, drive motor 6, coupling 25, clamping nut 24, pairing angular contact bearing 23, lining 22, leading screw 26, feed screw nut 27, ball spline 28, ball spline cover 29, steel ball 47, floating junction 20, rotation stopping screw 10, back-up ring 21;
Described cover of driver 4 and motor cabinet 5 are connected fastening, described motor cabinet 5 and drive motor 6 by fourth hole 49 use bolts and are connected fasteningly by the second through hole 12 use bolts, and leading screw 26, by coupling 25, is connected with drive motor 6,, thus torsion obtained.On described leading screw 26, cover has lining 22, and on lining 22, cover has pairing angular contact bearing 23, and is compressed and eliminated play by clamping nut 24; Described pairing angular contact bearing 23 is flush-mounted in the hole between cover of driver 4 and motor cabinet 5; The concentricity of cover of driver 4 and motor cabinet 5 is ensured, and pairing angular contact bearing 23 cannot move axially.Again because pairing angular contact bearing 23 has been eliminated play, so improved fluid injection precision.Described leading screw 26 one end are provided with feed screw nut 27, and feed screw nut 27, by third through-hole 44, is connected fastening by screw with ball spline 28; Described ball spline 28 outer surfaces are provided with three road the second arc grooves 45 (Fig. 9), the second arc groove 45 one-tenth circumference in described San road are symmetrical, ball spline overlaps 29 internal surfaces and is also provided with three roads and becomes the symmetrical three-arc groove 46 (Figure 10) of circumference, described three-arc groove 46 and the second arc groove 45 are used in conjunction with, and in per pass the second arc groove 45 and three-arc groove 46, three stainless shots 47 (Figure 11, Figure 12) are housed; Back-up ring 21 is equipped with in one end of described ball spline 28, and while preventing installing/dismounting, steel ball 47 drops.Described back-up ring 21 is connected and is anchored on ball spline 2 by floating junction 20, and floating junction 20 is connected with ceramic plunger 19, fastening by plug core 15; The use of floating junction 20, makes ceramic plunger 19 and concentricity and the straightness accuracy of ball spline 28 require to reduce, and greatly reduces difficulty of processing, simultaneously very micro-on the impact of fluid injection precision.Described ball spline cover 29 is flush-mounted in the step hole of cover of driver 4, and one end embeds in pump housing shell 3, the outer surface of ball spline cover 29 is processed with the 3rd elongated pore 48, and the 3rd described elongated pore coordinates with the tip of rotation stopping screw 10, and described rotation stopping screw is anchored on cover of driver 4; So stoped the rotation of ball spline cover 29.In the time that drive motor 6 rotates, leading screw 26 also rotates, torsion is transmitted to feed screw nut 27, because feed screw nut 27 is connected with ball spline 28 is fastening, and ball spline 28 is by 29 rotations that limited around axle of ball spline cover, so feed screw nut 27 cannot rotate, can only axial motion, so ball spline 28, floating junction 20 and ceramic plunger 19 all, along with feed screw nut 27 axially moves, produce malleation or negative pressure to cavity volume 38, cause liquid to flow into or flow out cavity volume 38.In the time of axial motion, the steel ball 47 between ball spline 28 and ball spline cover 29 rolls, so the friction between this three is rolling friction, has reduced abrasion, has extended working life.The material of ball spline 28 and ball spline cover 29 can use stainless steel or POM, and POM ratio is easier to processing, and stainless steel is more wear-resisting, but more difficult processing.
Described cover of driver is provided with peep hole 9 and the second elongated pore 8, conveniently observes the motion of ceramic plunger 19 and adds lubricating grease to leading screw 26.Described motor cabinet is provided with the first elongated pore 7, for coupling is installed.Pairing angular contact bearing 23, floating junction 20, leading screw 26 and feed screw nut 27 in driving mechanism are known products.
Described control driver element comprises switch power, controller, driver, sensor, and described sensor is connected with controller, and described switch power is connected with driver with controller.Sensor is connected with controller, in the time sensing metal, the redirect of level occurs, and controller is produced and interrupt, thereby both transmit direction signals and pulse signal is to driver, make drive motor 6 by command speed rotation specified angle.Or directly offer controller interrupt signal by upper-position unit, simple and convenient.Use controller that impulse speed and number of pulses can be set easily.Switch power with respectively at controller and driver to being connected, electric energy is provided.The power supply of sensor is provided by controller.In addition, sensor, driver, switch power and controller are known products.
Principle of the present utility model is: in the time that proximity detector senses that metal object produces level saltus step or upper-position unit generation level skip signal, controller receives interrupt signal, make an immediate response, the pulse signal that produces direction signal and some sends to driver, the electric current of driver control drive motor 6, make drive motor 6 drive leading screw 26 to rotate to an angle with certain speed, limited the rotation of ball spline cover 29 due to rotation stopping screw 10 at this simultaneously, ball spline cover 29 and steel ball 47 have limited again the rotation of ball spline 28, ball spline 28 and feed screw nut 27 tighten together, so feed screw nut 27 is to drive motor 6 one side shiftings, so the ball spline 28 and the ceramic plunger 19 that are attached thereto are all decorporated backward, in cavity volume 38, produce negative pressure, and absolute value is greater than hydraulic head pressure and pagoda spring 13 elastic force sums in suction sleeve, make below inner elements of check valve 14 jack-up, liquid flows into cavity volume 38 by arc groove, when the number of pulses of sending when controller reaches setting value, drive motor 6 stops, spool 14 falls after rise.Then controller sends and changes nyctitropic level saltus step to driver, and send same number of pulse, drive motor 6 drives leading screw 26 to reverse with certain speed, feed screw nut 27 drives ceramic plunger 19 to cavity volume 38 end motion, it in cavity volume 38, is now malleation, pressure is greater than the elastic force sum of hydraulic head pressure and pagoda spring 13 in outlet pipe, and upper inner elements of check valve 14 is by jack-up, and liquid flows out from arc groove.When the number of pulses of sending when controller reaches setting value, drive motor 6 stops, and in this moment, spool 14 falls after rise, and water outlet end is produced to small negative pressure, so can produce endways small crater, causes institute's fluid injection body not drip extension.
It should be noted that, the above is not to restriction of the present utility model, is not departing under the prerequisite of creation design of the present utility model, and any apparent replacement is all within protection domain of the present utility model.
Claims (7)
1. a delicate metering ceramic plunger topping-up pump, it is characterized in that, comprise pump head, two one-way valves, the pump housing, driving mechanism and control driver elements, described one-way valve is by being threadedly connected in the tapped hole in pump head on upper valve base and bottom flange, and pump head passes four through holes by bolt and pump housing shell is anchored on cover of driver; Motor cabinet passes four through holes by bolt and is anchored on cover of driver, and drive motor passes four through holes by bolt and is anchored on motor cabinet; In the pump housing, plug core one end is connected with the internal thread of floating junction in driving mechanism by outside thread, and driving mechanism is connected with control driver element.
2. a kind of delicate metering ceramic plunger topping-up pump according to claim 1, it is characterized in that, described one-way valve comprises one-way valve bonnet, one-way valve upper valve base, spool, pagoda spring, O RunddichtringO, described one-way valve upper valve base and one-way valve bonnet joint are provided with the 3rd O RunddichtringO mounting groove, described one-way valve upper valve base and pump head joint are provided with the 4th O RunddichtringO mounting groove, and described spool two ends are respectively provided with three roads is convenient to the spool arc groove of liquid communication.
3. a kind of delicate metering ceramic plunger topping-up pump according to claim 1, it is characterized in that, in described pump head, be provided with cavity volume, be respectively arranged with tapped hole at the two ends up and down of pump head, between two tapped hole diapires, be provided with intercommunicating pore, described intercommunicating pore is near the bottom of cavity volume.
4. a kind of delicate metering ceramic plunger topping-up pump according to claim 1, it is characterized in that, the described pump housing comprises pump housing shell, the first ceramics pole plug sleeve support, the second ceramics pole plug sleeve support, ceramics pole plug sleeve, ceramic plunger and plug core, described plug core is installed in the hole of ceramic plunger, plug core is provided with the 5th O RunddichtringO mounting groove, described ceramic plunger is positioned in ceramics pole plug sleeve, the second described ceramics pole plug sleeve support and the first ceramics pole plug sleeve support are installed on respectively the two ends of ceramics pole plug sleeve, symmetrical; The second described ceramics pole plug sleeve support and be respectively equipped with an O RunddichtringO mounting groove and the 2nd O RunddichtringO mounting groove above the first ceramics pole plug sleeve support; The second described ceramics pole plug sleeve support embeds in the cavity volume macropore on pump head.
5. a kind of delicate metering ceramic plunger topping-up pump according to claim 4, is characterized in that, described ceramic plunger and ceramics pole plug sleeve adopt Spielpassung.
6. a kind of delicate metering ceramic plunger topping-up pump according to claim 1, it is characterized in that, described driving mechanism comprises cover of driver, motor cabinet, drive motor, coupling, clamping nut, pairing angular contact bearing, lining, leading screw, feed screw nut, ball spline, ball spline cover, steel ball, floating junction, rotation stopping screw and back-up ring;
Described cover of driver is connected fastening with motor cabinet by fourth hole with bolt, described motor cabinet is connected fastening with drive motor by the second through hole with bolt, leading screw passes through coupling, be connected with drive motor, on described leading screw, cover has lining, on lining, cover has pairing angular contact bearing, and compresses by clamping nut; Described pairing angular contact bearing is flush-mounted in the hole between cover of driver and motor cabinet; Described leading screw one end is provided with feed screw nut, and feed screw nut, by third through-hole, is connected fastening by screw with ball spline; Described ball spline outer surface is provided with three road the second arc grooves, described San road arc groove becomes circumference symmetrical, ball spline cover internal surface is also provided with three roads and becomes the symmetrical three-arc groove of circumference, described three-arc groove coordinates with the second arc groove, and in per pass the second arc groove and three-arc groove, three stainless shots is housed; Back-up ring is equipped with in one end of described ball spline, and described back-up ring is connected and is anchored on ball spline by floating junction, and floating junction is connected with ceramic plunger, fastening by plug core; Described ball spline cover is flush-mounted in the step hole of cover of driver, and one end embeds in pump housing shell, the outer surface of ball spline cover is processed with the 3rd elongated pore, and the 3rd described elongated pore coordinates with the tip of rotation stopping screw, and described rotation stopping screw is anchored on cover of driver;
Described cover of driver is provided with peep hole and the second elongated pore, and described motor cabinet is provided with the first elongated pore.
7. a kind of delicate metering ceramic plunger topping-up pump according to claim 1, it is characterized in that, described control driver element comprises switch power, controller, driver, sensor, and described sensor is connected with controller, and described switch power is connected with driver with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203605.6U CN203783840U (en) | 2014-04-24 | 2014-04-24 | Precision metering liquid charging pump with ceramic plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203605.6U CN203783840U (en) | 2014-04-24 | 2014-04-24 | Precision metering liquid charging pump with ceramic plunger |
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| Publication Number | Publication Date |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420203605.6U Expired - Fee Related CN203783840U (en) | 2014-04-24 | 2014-04-24 | Precision metering liquid charging pump with ceramic plunger |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967733A (en) * | 2014-04-24 | 2014-08-06 | 山东海燕医用材料制造有限公司 | Precision metering ceramic plunger liquid charge pump |
| CN104405611A (en) * | 2014-10-13 | 2015-03-11 | 成都格莱精密仪器有限公司 | Dual-drive solvent conveying pump |
| CN105822521A (en) * | 2016-05-17 | 2016-08-03 | 大连依利特分析仪器有限公司 | Micro-flow direct-driven and electrically-controlled infusion pump for liquid-phase chromatograph |
| CN108350865A (en) * | 2015-08-10 | 2018-07-31 | 伊顿智能动力有限公司 | Electro-hydraulic proportional pressure control for pump of opening a way |
| CN110410315A (en) * | 2019-08-15 | 2019-11-05 | 深圳市众迈科技有限公司 | A kind of efficient topping-up pump |
| CN110500254A (en) * | 2019-09-19 | 2019-11-26 | 重庆宏广机电工程有限公司 | A kind of constant displacement pump |
| CN110701017A (en) * | 2019-11-21 | 2020-01-17 | 广东力王新能源股份有限公司 | Precision servo plunger metering pump |
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2014
- 2014-04-24 CN CN201420203605.6U patent/CN203783840U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967733A (en) * | 2014-04-24 | 2014-08-06 | 山东海燕医用材料制造有限公司 | Precision metering ceramic plunger liquid charge pump |
| CN104405611A (en) * | 2014-10-13 | 2015-03-11 | 成都格莱精密仪器有限公司 | Dual-drive solvent conveying pump |
| CN108350865A (en) * | 2015-08-10 | 2018-07-31 | 伊顿智能动力有限公司 | Electro-hydraulic proportional pressure control for pump of opening a way |
| CN108350865B (en) * | 2015-08-10 | 2019-09-06 | 伊顿智能动力有限公司 | Electro-hydraulic proportional pressure control for pump of opening a way |
| US11378068B2 (en) | 2015-08-10 | 2022-07-05 | Danfoss Power Solutions Ii Technology A/S | Electrohydraulic proportional pressure control for open circuit pump |
| US11885317B2 (en) | 2015-08-10 | 2024-01-30 | Danfoss A/S | Electrohydraulic proportional pressure control for open circuit pump |
| CN105822521A (en) * | 2016-05-17 | 2016-08-03 | 大连依利特分析仪器有限公司 | Micro-flow direct-driven and electrically-controlled infusion pump for liquid-phase chromatograph |
| CN105822521B (en) * | 2016-05-17 | 2018-07-03 | 大连依利特分析仪器有限公司 | Liquid chromatograph directly drives automatically controlled infusion pump with micrometeor |
| CN110410315A (en) * | 2019-08-15 | 2019-11-05 | 深圳市众迈科技有限公司 | A kind of efficient topping-up pump |
| CN110500254A (en) * | 2019-09-19 | 2019-11-26 | 重庆宏广机电工程有限公司 | A kind of constant displacement pump |
| CN110701017A (en) * | 2019-11-21 | 2020-01-17 | 广东力王新能源股份有限公司 | Precision servo plunger metering pump |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 |