WO2015018614A1 - Dispositif d'accouplement pour pompe doseuse - Google Patents

Dispositif d'accouplement pour pompe doseuse Download PDF

Info

Publication number
WO2015018614A1
WO2015018614A1 PCT/EP2014/065243 EP2014065243W WO2015018614A1 WO 2015018614 A1 WO2015018614 A1 WO 2015018614A1 EP 2014065243 W EP2014065243 W EP 2014065243W WO 2015018614 A1 WO2015018614 A1 WO 2015018614A1
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
coupling part
coupling device
metering pump
drive shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2014/065243
Other languages
German (de)
English (en)
Inventor
Dan Barron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2015018614A1 publication Critical patent/WO2015018614A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • 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
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/005—Removing contaminants, deposits or scale from the pump; Cleaning
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F04C15/0073—Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • 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
    • F04C2220/00—Application
    • F04C2220/24—Application for metering throughflow
    • 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
    • F04C2240/00—Components
    • F04C2240/50—Bearings

Definitions

  • the invention relates to a coupling device for a metering pump according to claim 1.
  • the invention relates in particular to a metering pump for the
  • outlet side arranged elastic diaphragms with self-closing outlet openings made of silicone or rubber can be used.
  • the outlet automatically closes itself again as soon as the metering pump is no longer driven.
  • Disposable dosing pumps Cheap products, usually made of plastic and usually of very simple mechanical design.
  • the pump drive itself is not part of the disposable metering pump for cost reasons, but the interface between the disposable metering pump and the pump drive in these solutions is usually designed so that a simple coupling is possible.
  • the latter is often a simple, twist-proof plug connection between pump drive and metering pump. An example of this can be seen in EP-1'892'417.
  • the coupling device should be particularly suitable for metering pumps which are designed as disposable metering pumps and rotating positive displacement pumps.
  • the intended single use of the metering also explains why a non-rotatable connector between the metering pump and the
  • Dosage pump drive should be available. In particular, should
  • a coupling device for a metering pump which has a drive shaft and a profile shaft end and which is designed for a non-rotatable plug connection with a metering pump, has at least the following features:
  • the drive shaft has a spiral external toothing with a
  • spiral external teeth engages in a first axially displaceable and rotatably mounted coupling part with a circular cylindrical outer surface and with a spiral-shaped internal toothing, which is the spiral-shaped
  • the profile shaft end is connected to a second rotatably mounted coupling part, wherein the second coupling part is arranged coaxially to the first coupling part and wherein the first coupling part with the second
  • Coupling part by axial displacement rotatably to couple or decouple
  • a storage part has a LagerungsausEnglishung with a circular cylindrical inner surface, the circular cylindrical outer surface of the first
  • Coupling corresponds to parts and in the first coupling part axially
  • the metering pump is as mentioned as rotating
  • Rotary coupling device can either be driven so that the metering pump pumped out the substance to be pumped either to the pump outlet or sucked back. For rotating positive displacement pumps, this only requires a reversal of the direction of rotation.
  • Gear housing parts may be dependent.
  • the main characteristic of the coupling device according to the invention is that when the direction of rotation of the drive shaft is reversed, that is to say when the substance to be conveyed is sucked back, the counter-rotation of the rotating positive displacement pump only has a limited short and short rotation controlled period of time (which corresponds to a defined angle of rotation of the rotors of the rotary positive displacement pump) and that the process of
  • Decoupling require a counter rotation of the metering pump is defined by a limited period of time when the metering pump of the
  • Drive shaft is driven counter to the conveying direction.
  • Fig. 1 is an exploded view of the main components of
  • FIG. 2 is a perspective view of the coupling device, Fig. 3 parts of the coupling device in a plan view in coupled
  • Fig. 4 shows the same view of the coupling device in uncoupled
  • Fig. 1 shows an exploded view of the main components of
  • Coupling device for a metering pump Coupling device for a metering pump.
  • the coupling device has a drive shaft 1 and a profiled shaft end 2, wherein the profiled shaft end 2 is designed for a non-rotatable plug connection with a (not shown) metering pump.
  • the coupling device is connected to a drive shaft end A of a (not shown)
  • the metering pump is preferably a simple and inexpensive to produce pump, which is intended for single use, which is why an easily detachable non-rotatable connector in the shape of the profile shaft end 2 is provided.
  • 2 differently shaped profiles are possible at the profile shaft end, which are intrinsically safe for a twisting operation.
  • the coupling with the metering pump can also take place by other means, since the invention can in principle also be used with permanently installed metering pumps.
  • the drive shaft 1 has a rotationally fixed and integrally formed helical external toothing 3, which has a helical angle.
  • the spiral-shaped external toothing 3 has the shape of a spiral gear or a spiral gear.
  • the teeth are helical or wound around the axis of rotation D in the axial direction. Although a different number of teeth may be present, nevertheless, irrespective of the number of teeth, helical external teeth will always be used hereinafter spoken.
  • the angle at which the teeth run helically around the drive shaft 1 is referred to as Helix angle in accordance with the common definitions for helical gears.
  • the helix angle is relatively small in the present embodiment, preferably less than 45 °.
  • the spiral-shaped external toothing 3 engages in a first axially displaceable and rotatably mounted coupling part 4 with a circular cylindrical
  • spiral-shaped internal toothing 6 corresponds to the toothing of the spiral-shaped external toothing 3, which means that the spiral-shaped external toothing can rotate in and out of the helical internal toothing 6 and thus in the helical tooth
  • the first coupling part 4 is also formed as part of a dog clutch.
  • the first coupling part has axially oriented first jaws 7.
  • the profile shaft end 2 is connected to a second rotatably mounted coupling part 8, wherein the second coupling part 8 coaxial with the first
  • Coupling part 4 is arranged and the first coupling part 4 with the second coupling part 8 by axial displacement rotatably to couple or decouple is able.
  • the second coupling part 8 is also formed as part of a dog clutch and has for this purpose according to the first coupling part 4 axially oriented second jaw 9.
  • Clutch part 8 are fixedly mounted but rotatable about a rotation axis D. In the engaged state of the clutch device, the drive shaft 1 and the profile shaft end rotate synchronously. Furthermore, a storage part 10, in the present embodiment consisting of a first and a second storage half-shell 10a, 10b, with a circular cylindrical inner surface 11 is present. The circular cylindrical outer surface 5 of the first coupling part 4 corresponds to the
  • Coupling part 4 is axially displaceable and rotatably held in the bearing part 10.
  • the first and second storage half-shell 10a, 10b are connected to each other, for example by screwing (in Fig. 2 only indicated by holes).
  • a defined sliding friction is present or adjustable. This sliding friction is intended to both an axial and a rotational sliding of the first coupling part 4 in the intended manner
  • Coupling part 4 transmitted tensile or impact force can be generated. More details in the following functional description. Other obvious to those skilled solutions such as screws etc. to achieve an adjustable sliding friction are of course also possible.
  • the bearing half shells (10a, 10b) can also be made simply from a different, softer plastic than the other parts of the coupling device.
  • FIG. 2 shows a three-dimensional view of the coupling device, but here in the assembled and engaged state (ie according to the situation of FIG. 3).
  • additional holding or supporting parts which must also be present in addition to the means defined in the coupling device or like, for example, for the purpose of mechanical cohesion and mutual spatial orientation and positioning of the individual parts, omitted and not shown.
  • these additional holding or supporting parts depending on the different uses of the inventive coupling device, in various numbers and different shape may be present, so that a final enumeration would only be a hindrance and also seems immaterial.
  • FIG. 3 shows parts of the coupling device in a plan view
  • the second storage half-shell 10b is omitted in this view.
  • the coupling device is considered from the drive side S and it is further assumed that the metering pump is driven counterclockwise (counter clockwise, see arrow CCW) in this approach, and that this is also the normal conveying direction in which the metering pump delivers substance. If the second coupling part 8 were not present, the helical external toothing 3 would be unscrewed from the helical internal toothing 6 of the first coupling part 4. However, because the second coupling part 8 is rotatably and stationarily mounted as mentioned, the first
  • Clutch part 4 is pushed against the second coupling part 8, and because there is no alternative possibility, the first and the second coupling part 4, 8 are firmly verkuppelt and the drive shaft 1 and the profile shaft end 2 rotate synchronously.
  • the drive shaft 1 is rotated in the opposite direction (clockwise from the drive side S clockwise, see arrow CW), the helical external teeth 3 in the spiral inner teeth 6 of the first coupling part 4th
  • Fig. 4 shows parts of the coupling device in a plan view in fully uncoupled state.
  • the ultimately desired short-term counter-rotation of the metering pump with a reversal of the drive direction of the drive shaft 1 can thus be determined by suitable mechanical dimensioning of the inventive coupling device.
  • Displacement path which the first and the second coupling part for complete coupling or decoupling need, a counter-rotation of the metering pump of a limited period of time is definable when the
  • Metering pump is driven by the drive shaft opposite to the conveying direction.
  • the coupling device according to the invention can be very easily connected to metering pumps which are suitable for the
  • Disposable metering pump is designed, this can preferably be made of plastic and injection molding technology.
  • the profile shaft end is of course adapted in the form of the rotor shaft connector of the disposable metering pump.
  • This can, as shown in FIG. 2, be a cylindrical and one-sided flattened pin.
  • Other forms such as toothed or square cones are just as suitable.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

L'invention concerne un dispositif d'accouplement, destiné à une pompe doseuse, qui comporte un arbre d'entraînement (1) et une extrémité d'arbre profilé (2). L'extrémité d'arbre profilé (2) est conçue pour réaliser une liaison par enfichage, solidaire en rotation, avec la pompe doseuse. L'arbre d'entraînement (1) comporte une denture extérieure (3) en forme de spirale qui s'engrène dans une denture intérieure (6) en forme de spirale, disposée du côté intérieur, d'une première pièce d'accouplement (4) qui est mobile dans l'axe et montée à rotation et qui possède une surface extérieure (5) cylindrique circulaire. L'extrémité d'arbre profilé (2) est reliée à une seconde pièce d'accouplement (8) montée à rotation. La première pièce d'accouplement (4) peut être accouplée, de façon solidaire en rotation, à la seconde pièce d'accouplement (8) par un déplacement axial. Une pièce de palier comporte un évidement de palier possédant une surface intérieure (11) cylindrique circulaire qui correspond à la surface extérieure (5) cylindrique circulaire de la première pièce d'accouplement et dans laquelle la première pièce d'accouplement est insérée de façon à être mobile dans l'axe et rotative.
PCT/EP2014/065243 2013-08-06 2014-07-16 Dispositif d'accouplement pour pompe doseuse Ceased WO2015018614A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013215449.6 2013-08-06
DE201310215449 DE102013215449A1 (de) 2013-08-06 2013-08-06 Kupplungseinrichtung für eine Dosierpumpe

Publications (1)

Publication Number Publication Date
WO2015018614A1 true WO2015018614A1 (fr) 2015-02-12

Family

ID=51210480

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/065243 Ceased WO2015018614A1 (fr) 2013-08-06 2014-07-16 Dispositif d'accouplement pour pompe doseuse

Country Status (2)

Country Link
DE (1) DE102013215449A1 (fr)
WO (1) WO2015018614A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12229770B2 (en) 2013-12-18 2025-02-18 PayRange Inc. Method and system for presenting representations of payment accepting unit events

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016207246B3 (de) * 2016-04-28 2017-05-18 BSH Hausgeräte GmbH Kupplung zum lösbaren verbinden von zwei wellen
RU2718191C1 (ru) * 2019-08-16 2020-03-31 Владимир Петрович Папулов Механизм управления сцепной муфтой

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5597719A (en) 1994-07-14 1997-01-28 Onyx Pharmaceuticals, Inc. Interaction of RAF-1 and 14-3-3 proteins
US6039545A (en) * 1998-03-31 2000-03-21 Mahr Corporation Method and apparatus for precision metering of high viscosity materials
EP1892417A2 (fr) 2006-08-11 2008-02-27 ITT Manufacturing Enterprises, Inc. Pompe à lobes rotative
DE102008063983A1 (de) * 2008-12-19 2010-07-01 Dürr Systems GmbH Pumpe zum Fördern eines Fluids, insbesondere Dosierpumpe
DE102010012653A1 (de) * 2010-03-25 2011-09-29 Oerlikon Textile Gmbh & Co. Kg Zahnradpumpe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5597719A (en) 1994-07-14 1997-01-28 Onyx Pharmaceuticals, Inc. Interaction of RAF-1 and 14-3-3 proteins
US6039545A (en) * 1998-03-31 2000-03-21 Mahr Corporation Method and apparatus for precision metering of high viscosity materials
EP1892417A2 (fr) 2006-08-11 2008-02-27 ITT Manufacturing Enterprises, Inc. Pompe à lobes rotative
DE102008063983A1 (de) * 2008-12-19 2010-07-01 Dürr Systems GmbH Pumpe zum Fördern eines Fluids, insbesondere Dosierpumpe
DE102010012653A1 (de) * 2010-03-25 2011-09-29 Oerlikon Textile Gmbh & Co. Kg Zahnradpumpe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12229770B2 (en) 2013-12-18 2025-02-18 PayRange Inc. Method and system for presenting representations of payment accepting unit events

Also Published As

Publication number Publication date
DE102013215449A1 (de) 2015-02-12

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