EP1714036B1 - Sealing surfaces between a wavy rotor collar and a displaceable slide of a plump - Google Patents

Sealing surfaces between a wavy rotor collar and a displaceable slide of a plump Download PDF

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Publication number
EP1714036B1
EP1714036B1 EP04802976A EP04802976A EP1714036B1 EP 1714036 B1 EP1714036 B1 EP 1714036B1 EP 04802976 A EP04802976 A EP 04802976A EP 04802976 A EP04802976 A EP 04802976A EP 1714036 B1 EP1714036 B1 EP 1714036B1
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EP
European Patent Office
Prior art keywords
slide
rotor
rotor collar
carriage
perforation
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.)
Expired - Fee Related
Application number
EP04802976A
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German (de)
Spanish (es)
French (fr)
Other versions
EP1714036A1 (en
Inventor
Manfred Sommer
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Individual
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Individual
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Filing date
Publication date
Priority claimed from DE200420000189 external-priority patent/DE202004000189U1/en
Priority claimed from DE200420000183 external-priority patent/DE202004000183U1/en
Priority claimed from DE200420000186 external-priority patent/DE202004000186U1/en
Priority claimed from DE200420000185 external-priority patent/DE202004000185U1/en
Priority claimed from DE200420000188 external-priority patent/DE202004000188U1/en
Priority claimed from DE200420000184 external-priority patent/DE202004000184U1/en
Application filed by Individual filed Critical Individual
Publication of EP1714036A1 publication Critical patent/EP1714036A1/en
Application granted granted Critical
Publication of EP1714036B1 publication Critical patent/EP1714036B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/005—Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/007—General arrangements of parts; Frames and supporting elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/02—Arrangements of bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F01C21/0818—Vane tracking; control therefor
    • F01C21/0827—Vane tracking; control therefor by mechanical means
    • F01C21/0836—Vane tracking; control therefor by mechanical means comprising guiding means, e.g. cams, rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
    • 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
    • F04C13/001—Pumps for particular liquids
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0007—Radial sealings for working fluid
    • F04C15/0015—Radial sealings for working fluid of resilient material
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/003—Sealings for working fluid between radially and axially moving parts
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • 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
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/356—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C2/3568—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member with axially movable vanes
    • 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
    • F04C13/001—Pumps for particular liquids
    • F04C13/002—Pumps for particular liquids for homogeneous viscous liquids
    • 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
    • F04C13/007—Venting; Gas and vapour separation during pumping
    • 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
    • F04C15/0076—Fixing rotors on shafts, e.g. by clamping together hub and shaft
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/70—Disassembly methods
    • 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
    • F04C2240/10—Stators
    • 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
    • F04C2240/30—Casings or housings
    • 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
    • F04C2240/51—Bearings for cantilever assemblies
    • 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
    • F04C2240/80—Other components
    • F04C2240/802—Liners

Definitions

  • the invention relates to a device for producing a slot-like breakthrough in a slider.
  • a device for producing a slot-like breakthrough in a slider There are sealing surfaces between the rotor collar of a rotor and the throat areas of the gate breakthrough, both of which are present in a pump.
  • the rotor collar rotates about a rotation axis.
  • the rotor collar dipping into the slit-like opening of the slide displaces the slide parallel to the axis of rotation of the rotor in a reciprocating motion.
  • a pump with such a rotor collar is designed as a positive displacement pump. Main applications of such thick and viscous pump products are in the chemical, pharmaceutical and food processing industries.
  • a pump of the type mentioned in the preamble of claim 1 is known.
  • the inlet and the outlet of this pump are separated.
  • the inlet communicates with a suction space and the outlet communicates with an outlet space respectively in the interior of the pump housing.
  • Intake and discharge chamber are connected to each other via a pump channel.
  • the reveal walls of the in the. Apply slide existing breakthrough continuously sealed to the rotor collar. Due to the undulating shape of the rotor collar, the reveal walls of the slide opening have correspondingly curved contours.
  • the present invention seeks to provide a device for producing a present in a slide breakthrough, by means of a good sealing surface construction can be achieved and allows an economically favorable production of the breakthrough.
  • the sealing surfaces of the invention include that the polygonal, in particular rectangular cross-section of the rotor collar has rounded corner regions. Furthermore, the reveal walls of the present in the slide breakthrough rounded edges such that the rotor collar sealingly abuts in its rotational movement with its rounded corners on the reveal walls of the breakthrough.
  • the slider as a wearing part is made of a relatively soft material, so that the reveal walls can lose their sealing abutment on the rotor collar relatively quickly.
  • the service life of the slide depends on the conditions with which the corresponding pump is operated.
  • the existing in the transition between the rotor collar and the rotor hub fillet is a circumferentially enlarged circumferential line of the rotor collar, which allows a correspondingly enlarged contact area between the rotor collar and the soffit surfaces in Schieber barnbruch.
  • the soffit surfaces which must have this bulge of the rotor collar corresponding bulges, in their surface contour so complicated that they can be produced only with the greatest effort on computer-aided milling machines. According to the invention, it is therefore provided to produce the slit-like opening in the slide by means of a copy milling machine.
  • a the cross-section of the rotor collar corresponding Rotationsfräswerkmaschine is arranged rotatably about a first axis.
  • a the slider to the breakthrough corresponding workpiece is then attached to a carriage.
  • the carriage and the rotary tool are on the one hand relative to each other adjustable in a direction perpendicular to the axis of rotation of the Rotorfrästechnikmaschinemaschinees transverse direction.
  • the carriage and the rotary milling tool are also adjustable relative to one another in a longitudinal direction parallel to this direction of rotation.
  • An adjustment of the respective workpiece carrying the carriage in its longitudinal direction is effected by a rotationally fixed to the axis of rotation, adapted to the contour of the rotor collar control disc.
  • This control disk is then in both longitudinal directions and thus in both directions of adjustment of the carriage each shear-resistant to the same.
  • This thrust-resistant system of the control disk on the carriage is realized by a slot in the carriage, in which the control disk can dip in the transverse direction or at least slightly immerse continuously.
  • a motor 70 is driven about an axis 22 drivable rotor.
  • a cantilevered rotor collar 120 is integrally formed on the rotor 70. This rotor collar 120 runs approximately wave-shaped around the rotor hub 74.
  • the two side surfaces 186, 187 of the rotor collar 120 have a respective fillet 610, 612 with the rotor hub 74 and a respective further fillet 614, 616 with the end face 618 of the rotor collar 120. Except for the fillet 610, 612, 614, 616, the rotor collar 120 has Cross section the shape of a rectangle. The rotor collar 120 could also have polygonal cross sections deviating from the rectangular shape. Also in Fig. 2 indicated waveform of the rotor collar 120 is to be understood merely by way of example. Instead of the wave form, it would also be possible for there to be any structure which writhes back and forth, possibly also with angularly abutting collar sections. Important are the respective fillets 610, 612, 614, 616, so that no cross-sectional angularly abutting partial surfaces are present.
  • the rotor 70 dives with its rotor collar 120 into the opening 184 of a slide 182.
  • the in Fig. 3 Rotorkragen 120 is in close contact with the revolving walls 620 in the aperture 184, so that no pressure compensation through the opening 184 passes from the interior of the pump housing adjoining the front 622 of the slide 182 to the rotationally rotating movement of the rotor collar 120 can enter the back 624 of the slider 182 adjacent areas of the interior.
  • the reveal walls 620 are partially domed and have rounded abutting edges 634 and 636 in the upper and lower limits of FIG Fig. 3
  • the lower longitudinal edge 640 which adjoins the opening 184, is rounded with the abutment edge 630 arranged at right angles thereto in a connection region 642.
  • the longitudinal edge 640 corresponding rearward longitudinal edge on the back 624 of the slider 182.
  • the breakthrough 184 front and rear each limiting upper joint edge 644 in the two-sided edge region 646 is rounded.
  • the areas corresponding to the rounded areas 634, 636, 642 are also in the area at the opening 184 in relation to the Fig. 3 - Right adjoining portion of the slider 182 in a comparable manner available.
  • FIGS. 4, 5 and 6 a copy milling machine 650 is shown with which the opening 184 of the slide 182 can be produced in a simple manner.
  • the copying milling machine 650 has a base frame 652 which has a rear wall 654 and a respective upper or lower flange 656 and 658 connected in one piece at right angles.
  • a plurality of parallel to each other and parallel to the rear wall 654 arranged guide rods 660 are present, which are screwed end to the two flanges 656, 658.
  • a carriage 662 is guided and held longitudinally displaceable.
  • the carriage 662 is geared to a drive shaft 664 so as to be rotatable about its axis by driving this shaft 664 666 along the guide rods 660 - in the FIGS. 4, 5 and 6 up or down - can be adjusted arbitrarily.
  • the rotary milling tool 680 has a milling contour 684 which is adapted to the rotor collar 120 in such a way that the opening 184 can be produced by inserting the rotary rotary milling tool 680 in the transverse direction 702 into a slider blank 182.2.
  • left and right control cams 694, 696 are cantilevered leaving a gap 698 open downward, toward the control disk 682.
  • This gap 698 is the control disk 682 adapted so that when immersing the control disk 682 in the gap 698, the control disk 682 tightly against the two control cam 694, 696, so that adapted by the waveform of the rotor collar 120 wavy shape of the control disk 682 the two Cam 694, 696 and thus the carriage 685 in the longitudinal direction (double arrow 626) is taken.
  • the immersion of the control disk 682 in the gap 698 is carried out by corresponding lifting of the milling tool 680 and the control disk 682 supporting carriage 662, which can be effected by corresponding rotationally driving the shaft 664. When lifting this carriage 662, the control disk 682 and the rotary milling tool 680 are raised together with their drive shaft 674.
  • a slide blank 182.2 is placed on the carriage 685 within the recess 700 correspondingly present in the carriage.
  • the blank 182.2 is provided by clamp holders 676, 678 on both sides of the carriage 685 in its in the drawing shown position while the carriage 662 with the Rotationsfräswerkmaschine 680 and the control disk 682 moves up.

Landscapes

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

Abstract

The sealing surfaces, which are provided between a somewhat wavy, surrounding rotor collar (120) of a rotor rotating inside a pump, and the inner walls of a slot-like opening, which is provided in a slide (182) that can be displaced inside the pump in an axial direction, are characterized in that the polygonal, in particular, rectangular cross-section of the rotor collar (120) comprises rounded corner areas (610, 612, 614, 616) and that the lateral walls (620) of the opening (184) provided in the slide (182) have curvatures (634, 636, 646, 642) such that the rotor collar (120), when rotating, also rests in a sealing manner with its rounded corner areas (610, 612, 614, 616) against the lateral walls (620) of the opening (184).

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die Erfindung betrifft eine Vorrichtung zum Herstellen eines schlitzartigen Durchbruches in einem Schieber. Zwischen dem Rotorkragen eines Rotors und den Laibungsflächen des Schieberdurchbruches, die beide in einer Pumpe vorhanden sind, sind Dichtungsflächen vorhanden. In dem Gehäuse einer solchen Pumpe läuft der Rotorkragen um eine Drehachse rotierend herum. Dabei verschiebt d.er in dem schlitzartigen Durchbruch des Schiebers eintauchende Rotorkragen den Schieber parallel zur Drehachse des Rotors in einer Hin- und Her-Bewegung mit. Eine Pumpe mit einem solchen Rotorkragen ist als Verdrängerpumpe konzipiert. Hauptanwendungsgebiete solcher dick- und zähflüssige Produkte fördernder Pumpe finden sich in der chemischen, pharmazeutischen und in der lebensmittelverarbeitenden Industrie.The invention relates to a device for producing a slot-like breakthrough in a slider. There are sealing surfaces between the rotor collar of a rotor and the throat areas of the gate breakthrough, both of which are present in a pump. In the housing of such a pump, the rotor collar rotates about a rotation axis. In the process, the rotor collar dipping into the slit-like opening of the slide displaces the slide parallel to the axis of rotation of the rotor in a reciprocating motion. A pump with such a rotor collar is designed as a positive displacement pump. Main applications of such thick and viscous pump products are in the chemical, pharmaceutical and food processing industries.

STAND DER TECHNIKSTATE OF THE ART

Aus der DE 34 18 708 A1 ist eine Pumpe der im Oberbegriff des Anspruchs 1 genannten Art bekannt. Der Einlass und der Auslass dieser Pumpe sind voneinander getrennt. Der Einlass kommuniziert mit einem Ansaugraum und der Auslass mit einem Auslassraum jeweils im Innenraum des Pumpengehäuses. Ansaug- und Auslassraum sind über einen Pumpenkanal miteinander verbunden. Um sicherzustellen, dass das jeweils durch den Pumpenkanal vom Einlass zum Auslass geförderte Medium nicht rückwärts wieder zum Einlass fließen kann, müssen die Laibungswände des in dem. Schieber vorhandenen Durchbruches kontinuierlich dichtend an dem Rotorkragen anlegen. Aufgrund der wellenförmigen Gestalt des Rotorkragens besitzen die Laibungswände des Schieberdurchbruches entsprechend gewölbte Konturen. Trotzdem ist die jeweilige Kontaktfläche zwischen dem Rotorkragen und den Laibungswänden einer umlaufenden Linie stark angenähert. Je kleiner die Dichtungsflächen sind, umso eher treten infolge von unvermeidliche Abnutzungserscheinungen zwischen Rotorkragen und den Laibungswänden unerwünschte Undichtigkeiten zwischen ihnen auf. Ein solcher, ein Verschleißteil darstellender Schieber wird üblicherweise mit rechnergesteuerten Werkzeugmaschinen hergestellt.From the DE 34 18 708 A1 a pump of the type mentioned in the preamble of claim 1 is known. The inlet and the outlet of this pump are separated. The inlet communicates with a suction space and the outlet communicates with an outlet space respectively in the interior of the pump housing. Intake and discharge chamber are connected to each other via a pump channel. To ensure that the pumped through the pump channel from the inlet to the outlet medium can not flow back to the inlet back, the reveal walls of the in the. Apply slide existing breakthrough continuously sealed to the rotor collar. Due to the undulating shape of the rotor collar, the reveal walls of the slide opening have correspondingly curved contours. Nevertheless, the respective contact surface between the rotor collar and the reveal walls of a revolving line is closely approximated. The smaller the sealing surfaces are, the sooner unwanted leaks occur between them due to unavoidable wear between the rotor collar and the soffit walls. Such, a wearing part illustrative slide is usually made with computer-controlled machine tools.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung zum Herstellen eines in einem Schieber vorhandenen Durchbruches anzugeben, mittels der eine gute Dichtflächenkonstruktion erreicht werden kann und die eine wirtschaftlich günstige Herstellung des Durchbruches ermöglicht.Based on this prior art, the present invention seeks to provide a device for producing a present in a slide breakthrough, by means of a good sealing surface construction can be achieved and allows an economically favorable production of the breakthrough.

Eine Vorrichtung zum Herstellen der die Dichtungsflächen des Schiebers darstellenden Laibungsflächen des im Schieber vorhandenen Durchbruches ist durch die Merkmale des Anspruchs 1 angegeben.An apparatus for producing the sealing surfaces of the slide performing soffit surfaces of the present in the slide breakthrough is given by the features of claim 1.

Die erfindungsgemäßen Dichtungsflächen beinhalten, dass der polygonartige, insbesondere rechteckförmige Querschnitt des Rotorkragens ausgerundete Eckbereiche besitzt. Ferner besitzen die Laibungswände des im Schieber vorhandenen Durchbruches ausgerundete Stoßkanten derart, dass der Rotorkragen bei seiner Rotationsbewegung auch mit seinen ausgerundeten Eckbereichen an den Laibungswänden des Durchbruches dichtend anliegt.The sealing surfaces of the invention include that the polygonal, in particular rectangular cross-section of the rotor collar has rounded corner regions. Furthermore, the reveal walls of the present in the slide breakthrough rounded edges such that the rotor collar sealingly abuts in its rotational movement with its rounded corners on the reveal walls of the breakthrough.

Durch die Ausrundungen wird erreicht, dass sich mögliche Abnützungen druckmäßig nicht so stark negativ auswirken, als es bei mehr oder weniger winklig aneinanderstoßenden Kanten beziehungsweise Ecken in den Laibungswänden des Schieberdurchbruches der Fall ist. Der Schieber als ein Verschleißteil ist aus relativ weichem Material hergestellt, so dass die Laibungswände ihre dichtende Anlage am Rotorkragen relativ schnell verlieren können. Die Standzeit des Schiebers hängt ab von den Bedingungen, mit denen die entsprechende Pumpe betrieben wird. Außerdem stellt die im Übergang zwischen dem Rotorkragen und der Rotornabe vorhandene Ausrundung eine umfangsmäßig vergrößerte Umfangslinie des Rotorkragens dar, was eine entsprechend vergrößerte Kontaktfläche zwischen dem Rotorkragen und den Laibungsflächen im Schieberdurchbruch ermöglicht. Allerdings werden die Laibungsflächen, die dieser Ausrundung des Rotorkragens entsprechende Auswölbungen aufweisen müssen, in ihrer Oberflächenkontur derart kompliziert, dass sie sich nur mit größtem Aufwand auf rechnergestützten Fräsmaschinen herstellen lassen. Erfindungsgemäß ist daher vorgesehen, den im Schieber vorhandenen schlitzartigen Durchbruch mittels einer Kopierfräsmaschine herzustellen.Due to the fillets it is achieved that possible wear and tear in terms of pressure do not have such a negative effect as is the case with more or less angularly abutting edges or corners in the reveal walls of the slide opening. The slider as a wearing part is made of a relatively soft material, so that the reveal walls can lose their sealing abutment on the rotor collar relatively quickly. The service life of the slide depends on the conditions with which the corresponding pump is operated. In addition, the existing in the transition between the rotor collar and the rotor hub fillet is a circumferentially enlarged circumferential line of the rotor collar, which allows a correspondingly enlarged contact area between the rotor collar and the soffit surfaces in Schieberdurchbruch. However, the soffit surfaces, which must have this bulge of the rotor collar corresponding bulges, in their surface contour so complicated that they can be produced only with the greatest effort on computer-aided milling machines. According to the invention, it is therefore provided to produce the slit-like opening in the slide by means of a copy milling machine.

Wie ein in der Zeichnung dargestelltes Ausführungsbeispiel für eine solche Kopierfräsmaschine verdeutlicht, ist ein dem Querschnitt des Rotorkragens entsprechendes Rotationsfräswerkzeug um eine erste Achse drehbar angeordnet. Ein dem Schieber bis auf den Durchbruch entsprechendes Werkstück wird dann an einem Schlitten befestigt. Der Schlitten und das Rotationswerkzeug sind einerseits relativ zueinander verstellbar in einer zur Drehachse des Rotorfräswerkzeuges senkrechten Querrichtung. Ferner sind der Schlitten und das Rotationsfräswerkzeug auch in einer zu dieser Drehrichtung parallelen Längsrichtung relativ zueinander verstellbar.As illustrated in the drawing embodiment of such a copy milling machine, a the cross-section of the rotor collar corresponding Rotationsfräswerkzeug is arranged rotatably about a first axis. A the slider to the breakthrough corresponding workpiece is then attached to a carriage. The carriage and the rotary tool are on the one hand relative to each other adjustable in a direction perpendicular to the axis of rotation of the Rotorfräswerkzeuges transverse direction. Furthermore, the carriage and the rotary milling tool are also adjustable relative to one another in a longitudinal direction parallel to this direction of rotation.

Eine Verstellung des das jeweilige Werkstück tragenden Schlittens in seiner Längsrichtung wird durch eine an der Drehachse drehfest befestigte, der Kontur des Rotorkragens angepasste Steuerscheibe bewirkt. Diese Steuerscheibe liegt dann in beiden Längsrichtungen und damit in beiden Verstellrichtungen des Schlittens jeweils schubfest an demselben an.An adjustment of the respective workpiece carrying the carriage in its longitudinal direction is effected by a rotationally fixed to the axis of rotation, adapted to the contour of the rotor collar control disc. This control disk is then in both longitudinal directions and thus in both directions of adjustment of the carriage each shear-resistant to the same.

Diese schubfeste Anlage der Steuerscheibe an dem Schlitten wird durch einen Schlitz in dem Schlitten verwirklicht, in den die Steuerscheibe in Querrichtung eintauchen kann beziehungsweise zumindest geringfügig fortwährend eintaucht.This thrust-resistant system of the control disk on the carriage is realized by a slot in the carriage, in which the control disk can dip in the transverse direction or at least slightly immerse continuously.

Weitere Vorteile und Merkmale der Erfindung sind den in den Ansprüchen ferner angegebenen Merkmalen sowie dem nachstehenden Ausführungsbeispiel zu entnehmen.Further advantages and features of the invention are given in the claims further specified features and the following embodiment.

KURZE BESCHREIBUNG DER ZEICHNUNGBRIEF DESCRIPTION OF THE DRAWING

Die Erfindung wird im Folgenden anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher beschrieben und erläutert. Es zeigen:

Fig. 1
eine teilweise geschnittene Darstellung eines Rotors mit seinem wellenförmig um seine Rotornabe umlaufenden Rotorkragens nach der Erfindung,
Fig. 2
eine abschnittsweise perspektivische Darstellung des Rotorkragens nach Fig. 1,
Fig. 3
einen schematisiert dargestellten Schieber mit einem schlitzartigen Durchbruch, in den der Rotor mit seinem Rotorkragen nach Fig. 1 dichtend eintauchen kann,
Fig. 4
eine teilweise geschnittene Seitenansicht einer Kopierfräsmaschine zum Herstellen des Durchbruches im Schieber nach Fig. 3,
Fig. 5
eine teilweise geschnittene Ansicht der Kopierfräsmaschine nach Fig. 4, in einer Stellung vor Beginn der Herstellung des Schieberdurchbruches in einem Schieber-Rohling,
Fig. 6
eine Darstellung ähnlich der von Fig. 5, in einer in den Schieberrohling voll eingetauchten Stellung des Rotierfräswerkzeuges.
The invention will be described and explained in more detail below with reference to the embodiment shown in the drawing. Show it:
Fig. 1
a partially sectioned view of a rotor with its wavy about its rotor hub rotating rotor collar according to the invention,
Fig. 2
a section-wise perspective view of the rotor collar after Fig. 1 .
Fig. 3
a schematically illustrated slide with a slot-like opening, in which the rotor with its rotor collar after Fig. 1 can immerse yourself
Fig. 4
a partially sectioned side view of a copy milling machine for producing the breakthrough in the slide after Fig. 3 .
Fig. 5
a partially sectioned view of the copy milling machine after Fig. 4 in a position prior to the beginning of the production of the slide opening in a slider blank,
Fig. 6
a representation similar to that of Fig. 5 in a fully immersed in the slide blank position of the Rotierfräswerkzeuges.

WEGE ZUM AUSFÜHREN DER ERFINDUNGWAYS FOR CARRYING OUT THE INVENTION

In einer nicht näher dargestellten Verdrängerpumpe, wie sie gattungsmäßig in der vorbekannten DE 34 18 708 A1 beschrieben ist, ist ein motorisch um eine Achse 22 antreibbarer Rotor 70 vorhanden. An dem Rotor 70 ist ein auskragend befestigter Rotorkragen 120 einstückig angeformt. Dieser Rotorkragen 120 läuft in etwa wellenförmig um die Rotornabe 74 herum.In a positive displacement pump, not shown in detail, as they are generic in the prior art DE 34 18 708 A1 is described, a motor 70 is driven about an axis 22 drivable rotor. On the rotor 70, a cantilevered rotor collar 120 is integrally formed. This rotor collar 120 runs approximately wave-shaped around the rotor hub 74.

Die beiden Seitenflächen 186,187 des Rotorkragens 120 besitzen eine jeweilige Ausrundung 610, 612 mit der Rotornabe 74 und eine jeweilige weitere Ausrundung 614, 616 mit der Stirnfläche 618 des Rotorkragens 120. Bis auf die Ausrundung 610, 612, 614, 616 besitzt der Rotorkragen 120 im Querschnitt die Form eines Rechteckes. Der Rotorkragen 120 könnte auch von der Rechteckform abweichende polygonartige Querschnitte aufweisen. Auch die in Fig. 2 angedeutete Wellenform des Rotorkragens 120 ist lediglich beispielhaft zu verstehen. Statt der Wellenform könnte auch eine beliebige hin und her sich windende Struktur, gegebenenfalls auch mit winklig aneinanderstoßenden Kragenabschnitten, vorhanden sein. Wichtig sind die jeweiligen Ausrundungen 610, 612, 614, 616, so dass keine querschnittsmäßigen winklig aneinanderstoßenden Teilflächen vorhanden sind.The two side surfaces 186, 187 of the rotor collar 120 have a respective fillet 610, 612 with the rotor hub 74 and a respective further fillet 614, 616 with the end face 618 of the rotor collar 120. Except for the fillet 610, 612, 614, 616, the rotor collar 120 has Cross section the shape of a rectangle. The rotor collar 120 could also have polygonal cross sections deviating from the rectangular shape. Also in Fig. 2 indicated waveform of the rotor collar 120 is to be understood merely by way of example. Instead of the wave form, it would also be possible for there to be any structure which writhes back and forth, possibly also with angularly abutting collar sections. Important are the respective fillets 610, 612, 614, 616, so that no cross-sectional angularly abutting partial surfaces are present.

Der Rotor 70 taucht mit seinem Rotorkragen 120 in den Durchbruch 184 eines Schiebers 182 ein. Der in Fig. 3 nicht dargestellte Rotorkragen 120 liegt dabei an den in dem Durchbruch 184 umlaufenden Laibungswänden 620 dicht an, so dass bei der rotierend umlaufenden Bewegung des Rotorkragens 120 kein Druckausgleich durch den Durchbruch 184 hindurch von dem an die Vorderseite 622 des Schiebers 182 angrenzenden Innenraum des Pumpengehäuses mit den an die Rückseite 624 des Schiebers 182 angrenzenden Bereichen des Innenraumes eintreten kann. Durch die wellenförmige Kontur des Rotorkragens 120 wird dabei der Schieber 182 in einer zur Achse 22 parallelen Verstellrichtung (Doppelpfeil 626) bewegt.The rotor 70 dives with its rotor collar 120 into the opening 184 of a slide 182. The in Fig. 3 Rotorkragen 120, not shown, is in close contact with the revolving walls 620 in the aperture 184, so that no pressure compensation through the opening 184 passes from the interior of the pump housing adjoining the front 622 of the slide 182 to the rotationally rotating movement of the rotor collar 120 can enter the back 624 of the slider 182 adjacent areas of the interior. By the wave-shaped contour of the rotor collar 120 while the slider 182 is moved in a direction parallel to the axis 22 adjustment (double arrow 626).

Die Laibungswände 620 sind teilweise in sich gewölbt und besitzen ausgerundete Stoßkanten 634 und 636 im oberen und unteren Grenzbereich des in Fig. 3 linken Abschnittes der U-förmig umlaufenden Laibungswände 620. Außerdem ist noch die untere Längskante 640, die sich an den Durchbruch 184 anschließt, mit der rechtwinklig dazu angeordneten Stoßkante 630 in einem Anschlussbereich 642 ausgerundet. Entsprechendes gilt für die der Längskante 640 entsprechende rückwärtige Längskante auf der Rückseite 624 des Schiebers 182. Schließlich ist auch noch die den Durchbruch 184 vorne und hinten jeweils begrenzende obere Stoßkante 644 im beidseitigen Randbereich 646 ausgerundet. Den ausgerundeten Bereichen 634, 636, 642 entsprechende Bereiche sind auch in dem sich an den Durchbruch 184 nach - bezogen auf die Fig. 3 - rechts anschließenden Abschnitt des Schiebers 182 in vergleichbarer Weise vorhanden.The reveal walls 620 are partially domed and have rounded abutting edges 634 and 636 in the upper and lower limits of FIG Fig. 3 In addition, the lower longitudinal edge 640, which adjoins the opening 184, is rounded with the abutment edge 630 arranged at right angles thereto in a connection region 642. The same applies to the longitudinal edge 640 corresponding rearward longitudinal edge on the back 624 of the slider 182. Finally, the breakthrough 184 front and rear each limiting upper joint edge 644 in the two-sided edge region 646 is rounded. The areas corresponding to the rounded areas 634, 636, 642 are also in the area at the opening 184 in relation to the Fig. 3 - Right adjoining portion of the slider 182 in a comparable manner available.

In den Figuren 4, 5 und 6 ist eine Kopierfräsmaschine 650 dargestellt, mit der sich auf einfache Weise der Durchbruch 184 des Schiebers 182 herstellen lässt.In the FIGS. 4, 5 and 6 a copy milling machine 650 is shown with which the opening 184 of the slide 182 can be produced in a simple manner.

Die Kopierfräsmaschine 650 besitzt ein Grundgestell 652, das eine Rückwand 654 und einen jeweils rechtwinklig einteilig angeschlossenen oberen beziehungsweise unteren Flansch 656 beziehungsweise 658 besitzt.The copying milling machine 650 has a base frame 652 which has a rear wall 654 and a respective upper or lower flange 656 and 658 connected in one piece at right angles.

Im Abstand vor der Rückwand 654 sind mehrere parallel untereinander und parallel zur Rückwand 654 angeordnete Führungsstangen 660 vorhanden, die endseitig mit den beiden Flanschen 656, 658 verschraubt sind. Längs dieser Führungsstangen 660 ist ein Schlitten 662 längsverschieblich geführt und gehalten. Der Schlitten 662 ist mit einer Antriebswelle 664 getriebemäßig verbunden, so dass er durch Antreiben dieser Welle 664 in einer rotativen Bewegung um ihre Achse 666 längs der Führungsstangen 660 - in den Figuren 4, 5 und 6 nach oben beziehungsweise unten - beliebig verstellt werden kann.At a distance from the rear wall 654 a plurality of parallel to each other and parallel to the rear wall 654 arranged guide rods 660 are present, which are screwed end to the two flanges 656, 658. Along these guide rods 660, a carriage 662 is guided and held longitudinally displaceable. The carriage 662 is geared to a drive shaft 664 so as to be rotatable about its axis by driving this shaft 664 666 along the guide rods 660 - in the FIGS. 4, 5 and 6 up or down - can be adjusted arbitrarily.

Von dem Schlitten 662 kragen mehrere Halter 668 aus. An diesen Haltern 668 sind ein linkes und rechtes Lager 670, 672 für eine weitere Welle 674 befestigt. Zwischen diesen Lagern sitzt auf der Welle 674 ein Rotationsfräswerkzeug 680 und im Abstand zu demselben eine Steuerscheibe 682.From the carriage 662 more holders 668 cantilevered out. On these holders 668, a left and right bearings 670, 672 for another shaft 674 are attached. Between these bearings sits on the shaft 674 a Rotationsfräswerkzeug 680 and at a distance to the same a control disc 682st

Das Rotationsfräswerkzeug 680 besitzt eine Fräskontur 684, die dem Rotorkragen 120 so angepasst ist, dass durch Einschieben des rotierenden Rotationsfräswerkzeuges 680 in Querrichtung 702 in einen Schieber-Rohling 182.2 sich in demselben der Durchbruch 184 erzeugen lässt.The rotary milling tool 680 has a milling contour 684 which is adapted to the rotor collar 120 in such a way that the opening 184 can be produced by inserting the rotary rotary milling tool 680 in the transverse direction 702 into a slider blank 182.2.

Oberhalb der Welle 674 ist an dem oberen Flansch 656 des Grundgestells 652 ein weiterer Schlitten 685 längs zweier Führungsstangen 686, 688 verstellbar gehalten. Die beiden Führungsstangen 686, 688 sind in einer linken und rechten Wange 690, 692 gehalten. Die Wangen sind an dem oberen Flansch 656 auskragend befestigt.Above the shaft 674, another carriage 685 along two guide rods 686, 688 is adjustably held on the upper flange 656 of the base frame 652. The two guide rods 686, 688 are held in left and right cheeks 690, 692. The cheeks are cantilevered to the upper flange 656.

An dem Schlitten 685 ist ein linker und rechter Steuernocken 694, 696 unter Freilassen eines nach unten, in Richtung auf die Steuerscheibe 682, offenen Spaltes 698 auskragend angebracht. Dieser Spalt 698 ist der Steuerscheibe 682 so angepasst, dass beim Eintauchen der Steuerscheibe 682 in den Spalt 698 die Steuerscheibe 682 dicht an den beiden Steuernocken 694, 696 anliegt, so dass durch die der Wellenform des Rotorkragens 120 angepasste wellenförmigen Gestalt der Steuerscheibe 682 die beiden Nocken 694, 696 und damit der Schlitten 685 in Längs-richtung (Doppelpfeil 626) mitgenommen wird. Das Eintauchen der Steuerscheibe 682 in den Spalt 698 erfolgt durch entsprechendes Anheben des das Fräswerkzeug 680 und die Steuerscheibe 682 tragenden Schlittens 662, was durch entsprechendes rotatives Antreiben der Welle 664 bewirkt werden kann. Beim Anheben dieses Schlittens 662 werden die Steuerscheibe 682 und das Rotationsfräswerkzeug 680 zusammen mit ihrer Antriebswelle 674 angehoben.On the carriage 685, left and right control cams 694, 696 are cantilevered leaving a gap 698 open downward, toward the control disk 682. This gap 698 is the control disk 682 adapted so that when immersing the control disk 682 in the gap 698, the control disk 682 tightly against the two control cam 694, 696, so that adapted by the waveform of the rotor collar 120 wavy shape of the control disk 682 the two Cam 694, 696 and thus the carriage 685 in the longitudinal direction (double arrow 626) is taken. The immersion of the control disk 682 in the gap 698 is carried out by corresponding lifting of the milling tool 680 and the control disk 682 supporting carriage 662, which can be effected by corresponding rotationally driving the shaft 664. When lifting this carriage 662, the control disk 682 and the rotary milling tool 680 are raised together with their drive shaft 674.

Im Bereich oberhalb des Rotationsfräswerkzeugs 680 ist an den Schlitten 685 ein Schieberrohling 182.2 innerhalb der im Schlitten entsprechend vorhandenen Aussparung 700 platziert. Der Rohling 182.2 wird durch beidseitig an dem Schlitten 685 vorhandene Klemmhalter 676, 678 in seiner in der Zeichnung dargestellten Position gehalten, während der Schlitten 662 mit dem Rotationsfräswerkzeug 680 und der Steuerscheibe 682 nach oben fährt.In the region above the rotary milling tool 680, a slide blank 182.2 is placed on the carriage 685 within the recess 700 correspondingly present in the carriage. The blank 182.2 is provided by clamp holders 676, 678 on both sides of the carriage 685 in its in the drawing shown position while the carriage 662 with the Rotationsfräswerkzeug 680 and the control disk 682 moves up.

Bei der in Fig. 5 dargestellten Position des Schlittens 662 mit dem Rotationsfräswerkzeug 680 und der Steuerscheibe 682 befindet sich die Steuerscheibe 682 schon geringfügig in dem Spalt 698 zwischen den beiden Steuernocken 694, 696. Beim Hochfahren des Schlittens 662 arbeitet sich das Rotationsfräswerkzeug 680 an der vorbestimmten Stelle von unten in den Rohling 182.2 hinein. Durch das sich drehende Rotationsfräswerkzeug (Fräser) 680 erhalten die Laibungswände 620 des Rohlings 182.2 die entsprechend ausgerundete, gewölbte Kontur, so dass der fertig hergestellte Schieber-Rohling 182.2 als Schieber 182 in eine entsprechende Pumpe eingesetzt werden kann. Der mit dem Schieber 182 zusammenwirkende Rotorkragen 120 dichtet auch im Bereich seiner Ausrundungen 610, 612, 614, 616 durchgängig den Durchbruch 184 ab.At the in Fig. 5 shown position of the carriage 662 with the Rotationsfräswerkzeug 680 and the control disk 682, the control disk 682 is already slightly in the gap 698 between the two control cam 694, 696. When booting the carriage 662, the Rotationsfräswerkzeug 680 works at the predetermined location from below in the Blank 182.2 into it. By the rotating Rotationsfräswerkzeug (cutter) 680 receive the reveal walls 620 of the blank 182.2 the corresponding rounded, curved contour, so that the finished manufactured slide blank 182.2 can be used as a slide 182 in a corresponding pump. The cooperating with the slider 182 rotor collar 120 seals in the region of its fillets 610, 612, 614, 616 continuously from the opening 184 from.

Claims (1)

  1. Device for making a perforation (184) in a slide (182),
    - the rotor collar (120) of a pump being capable of being laid sealingly against the rounded-out inner walls (620) of the perforation (184),
    - sealing surfaces being present between an approximately wavy peripheral rotor collar (120) of a rotor (70) rotating in the pump and the inner walls (620) of the slot-like perforation (184) which is present in the slide (182) adjustable in the axial direction (626) in the pump,
    - the two side faces (186, 187) of the polygon-like, in particular rectangular cross section of the rotor collar (120) having in each case, both with its end face (618), a rounding-out (614, 616) and in each case, with the rotor hub (74), a rounding-out (610, 612),
    - in both upper and lower corner regions of the two lateral front and rear butt edges (630) of the two lateral inner walls (620) of the slide (182) in each case a rounding-out (642, 646) being present both with the lower longitudinal edge (640) and with the butt edge (644) delimiting the perforation (184) in the slide (182) at the top, so that
    - all the corner regions (610, 612, 614, 616) are rounded out, and as a result
    - the rotor collar (120), during its rotational movement, can also be laid sealingly with all its rounded-out corner regions (610, 612, 614, 616) against the inner walls (620) of the perforation (184),
    - characterized in that
    - the device is designed as a copy-milling machine (650),
    - a rotary milling tool (680) which corresponds to the cross section of the rotor collar (120) being drivable rotatably about a first shaft (674),
    - a workpiece (182.2) which corresponds to the slide (182), with the exception of the perforation (184), being fastenable to a carriage (685),
    - this carriage (685) and the rotary milling tool (680) being in each case adjustable in relation to one another both in a transverse direction perpendicular to the first shaft (674) and in a longitudinal direction (626) parallel to the first shaft,
    - adjustment of the carriage (685) in the longitudinal direction (626) being capable of being effected by means of a control disc (682) which is fastened fixably in terms of rotation to the first shaft (674) and is adapted to the contour of the rotor collar (120) and which bears in each of the two longitudinal directions (626) against the carriage (685) in a shear-resistant manner,
    - there being present in the carriage (685) a slot (698) into which the control disc (682) penetrates in the transverse direction.
EP04802976A 2004-01-09 2004-12-21 Sealing surfaces between a wavy rotor collar and a displaceable slide of a plump Expired - Fee Related EP1714036B1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE200420000189 DE202004000189U1 (en) 2004-01-09 2004-01-09 Pump for viscous liquids has a wave shaped rotor with profiled edges locating in a profiled slot in a slider
DE200420000183 DE202004000183U1 (en) 2004-01-09 2004-01-09 Pump for viscous fluids has a drive shaft bearing inside a hollow support and positioned inside a hollow hub mounting for the pump rotor
DE200420000186 DE202004000186U1 (en) 2004-01-09 2004-01-09 Pump for viscous liquids has a wave shaped rotor and with seals between the stator and the pump housing
DE200420000185 DE202004000185U1 (en) 2004-01-09 2004-01-09 Pump for viscous fluids has flat sealing surfaces on both sides of a wave shaped rotor for improved seal with the pump slider
DE200420000188 DE202004000188U1 (en) 2004-01-09 2004-01-09 Pump for viscous liquids has a profiled rotor with a slider and with an elastic seal between the slider and the pump housing
DE200420000184 DE202004000184U1 (en) 2004-01-09 2004-01-09 Pump for viscous fluids has the rear wall and outer wall of the pumping chamber lined with a material which prevents contact between the pumped fluid and the pump
PCT/DE2004/002793 WO2005066501A1 (en) 2004-01-09 2004-12-21 Sealing surfaces between a wavy rotor collar and a displaceable slide of a pump

Publications (2)

Publication Number Publication Date
EP1714036A1 EP1714036A1 (en) 2006-10-25
EP1714036B1 true EP1714036B1 (en) 2012-03-28

Family

ID=34753997

Family Applications (5)

Application Number Title Priority Date Filing Date
EP04816275A Withdrawn EP1714038A1 (en) 2004-01-09 2004-12-21 Rotary piston pump having an axially moving vane
EP04802974A Withdrawn EP1714035A1 (en) 2004-01-09 2004-12-21 Rotary pump provided with an axially movable blade
EP04816274A Withdrawn EP1714037A1 (en) 2004-01-09 2004-12-21 Rotary piston pump comprising an axially movable vane
EP04802973A Withdrawn EP1721078A1 (en) 2004-01-09 2004-12-21 Rotary pump provided with an axially movable blade
EP04802976A Expired - Fee Related EP1714036B1 (en) 2004-01-09 2004-12-21 Sealing surfaces between a wavy rotor collar and a displaceable slide of a plump

Family Applications Before (4)

Application Number Title Priority Date Filing Date
EP04816275A Withdrawn EP1714038A1 (en) 2004-01-09 2004-12-21 Rotary piston pump having an axially moving vane
EP04802974A Withdrawn EP1714035A1 (en) 2004-01-09 2004-12-21 Rotary pump provided with an axially movable blade
EP04816274A Withdrawn EP1714037A1 (en) 2004-01-09 2004-12-21 Rotary piston pump comprising an axially movable vane
EP04802973A Withdrawn EP1721078A1 (en) 2004-01-09 2004-12-21 Rotary pump provided with an axially movable blade

Country Status (4)

Country Link
US (1) US7614863B2 (en)
EP (5) EP1714038A1 (en)
DE (6) DE112004002792A5 (en)
WO (6) WO2005066499A1 (en)

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DE102015116770A1 (en) * 2015-10-02 2017-04-06 Watson-Marlow Gmbh Pump and locking device
DE102015116769A1 (en) * 2015-10-02 2017-04-06 Watson-Marlow Gmbh Pump and blocking element
DE102015116768A1 (en) * 2015-10-02 2017-04-20 Watson-Marlow Gmbh pump
DE202017006441U1 (en) * 2017-12-02 2018-01-15 Gottfried Kowalik Rotary displacement pump for conveying flowable materials and impeller for such a positive displacement pump
US20220145880A1 (en) * 2020-11-11 2022-05-12 Server Products, Inc. Flexible impeller pump for flowable food product
BE1028910B1 (en) * 2020-12-16 2022-07-19 Univ Brussel Vrije Element for compressing or expanding a gas and method for controlling such element

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Also Published As

Publication number Publication date
WO2005066498A1 (en) 2005-07-21
EP1714037A1 (en) 2006-10-25
EP1714035A1 (en) 2006-10-25
US7614863B2 (en) 2009-11-10
DE112004002793A5 (en) 2007-05-24
DE112004002792A5 (en) 2007-05-24
US20070148027A1 (en) 2007-06-28
WO2005066499A1 (en) 2005-07-21
DE112004002789A5 (en) 2007-05-24
WO2005066496A1 (en) 2005-07-21
WO2005066497A1 (en) 2005-07-21
EP1721078A1 (en) 2006-11-15
EP1714036A1 (en) 2006-10-25
EP1714038A1 (en) 2006-10-25
WO2005066501A1 (en) 2005-07-21
DE112004002794A5 (en) 2007-05-24
DE112004002788A5 (en) 2007-05-24
DE112004002786A5 (en) 2007-05-24
WO2005066500A1 (en) 2005-07-21

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