EP0776425B1 - Anordnung zum öffnen und schliessen einer verschlussklappe - Google Patents

Anordnung zum öffnen und schliessen einer verschlussklappe Download PDF

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Publication number
EP0776425B1
EP0776425B1 EP94925434A EP94925434A EP0776425B1 EP 0776425 B1 EP0776425 B1 EP 0776425B1 EP 94925434 A EP94925434 A EP 94925434A EP 94925434 A EP94925434 A EP 94925434A EP 0776425 B1 EP0776425 B1 EP 0776425B1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
container
closure cap
drive unit
cleaning opening
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 - Lifetime
Application number
EP94925434A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0776425A1 (de
Inventor
Hartmut Benckert
Hellmut Hurr
Paul BÄUMEN
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.)
Putzmeister Concrete Pumps GmbH
Original Assignee
Putzmeister AG
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 Putzmeister AG filed Critical Putzmeister AG
Publication of EP0776425A1 publication Critical patent/EP0776425A1/de
Application granted granted Critical
Publication of EP0776425B1 publication Critical patent/EP0776425B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F04B15/023—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/90—Slurry pumps, e.g. concrete

Definitions

  • the invention relates to an arrangement for opening and Closing one at a floor-side cleaning opening a container, in particular a material feed container for thick matter pumps, arranged shutter.
  • the closure flap arranged on a container-fixed swivel and can be used to empty and clean the hopper a concrete pump by swiveling it by hand be opened and closed. Especially when opening occur through adhering to the closure flap Conveyed goods have increased frictional resistance, which is manual Difficulty operating the shutter.
  • the invention is based on the object a simple arrangement of the above Type to create with a flap a container, such as a material feed container a thick matter pump, by an operator with little effort and no risk of injury can be opened and closed.
  • the invention is based on the idea that hydraulic Opening the flap creates a risk of injury is largely excluded and that vice versa when closing the flap when the container empty and cleaned, no manual closing requires special effort.
  • a coupled to the closure flap, between a starting and a final position movable hydraulic drive unit for adjustment the closure flap between the cleaning opening sealing closed position and a cleaning opening at least partially releasing outlet position proposed, the closure flap by actuation one the pressure oil supply to the hydraulic drive unit controlling hydraulic actuator in their Outlet position is adjustable, and by means of a mechanical Actuator while resetting the hydraulic drive unit in its starting position manually retractable to its closed position is.
  • the hydraulic drive unit has one in one single-acting, pressurized oil on the bottom and on the rod side with an oil tank or with the Atmosphere connected hydraulic cylinder slidable Drive piston open.
  • the feed of the drive piston can be fixed to a container arranged hydraulic cylinder via a with the Piston rod connected linkage in a swivel movement the flap can be implemented.
  • the drive piston can do this via a on the piston rod hinged rocker arm with the flap be coupled, the hydraulic cylinder in this Fall about a parallel to the axis of the cleaning opening Axis is pivotally arranged on the container.
  • the hydraulic supply to the hydraulic cylinder is advantageously by a 3/2-way valve Control valve controlled, the bottom side of the hydraulic cylinder in a preferably manually operated switch position of the directional valve with the pressure oil supply and in a spring-centered rest position of the directional valve with connected to the oil tank.
  • This will result in incorrect operation the hydraulic drive unit largely excluded.
  • it ensures that the floor space of the drive cylinder when the mechanical Actuator can be drained of pressure oil without further measures and the hydraulic piston in its starting position is resettable.
  • the opening speed of the shutter through a pressure oil supply to the hydraulic Drive unit influencing, preferably as a controllable Throttle valve trained current valve controlled will.
  • the cleaning opening becomes the cover advantageously by an inclined slope of a stop piece arranged on the container bottom in pressed its closed position against a sealing ring.
  • closure arrangements shown in the drawing consist essentially of one on a bottom side Cleaning opening 10 of a container 12 of a thick matter pump 14 arranged closure flap 16 with a hydraulic drive unit 20 is coupled, the closure flap after triggering a hydraulic Actuator 22 hydraulically opened and through Actuation of a mechanical designed as a hand lever 23 Actuator closed again liquid-tight can be.
  • the hydraulic drive unit 20 has one in one single-acting hydraulic cylinder 24 slidable Drive piston 26 on the in the embodiment 1 and 2 via its piston rod 28 and a from two via rotary joints 30, 34 with the piston rod 28 and interconnected coupling links 32,36 existing Linkage 18 coupled to the flap 16 which in turn is about an axis 58 of the cleaning opening 10 parallel axes on the outside of the tank bottom is pivotally arranged.
  • the Cleaning opening 10 through in its closed position located flap 16 closed liquid-tight.
  • the slurry pump 14 has two items to be conveyed Delivery cylinder 38.40, the front openings in the container 12 open and alternately during the pressure stroke via a swivel tube 42 with a delivery line 44 are connected.
  • the closure flap 16 is opened hydraulically (FIG. 1).
  • the hydraulic actuator 22 which is arranged between the bottom connection of the hydraulic cylinder 24 and the pressure side of a pump 46 and consists of a 3/2-way valve 48 and an adjustable throttle valve 50 connected upstream of the directional valve 48, is actuated.
  • the directional control valve 48 which is manually operated by means of a release member 52, connects the bottom side of the hydraulic cylinder 24 to the pressure oil supply in its switching position a , whereby the piston 26 is displaced into its outlet position, which opens the cleaning opening 10, by pivoting the closure flap 16.
  • the rod side of the hydraulic cylinder 24 is either connected to an oil tank 51, as shown, or is directly relieved of the atmosphere.
  • the forward speed can be controlled by regulated throttling of the pressure oil supply via the throttle valve 50.
  • the directional control valve 48 switches back to its spring-centered rest position b , in which it connects the bottom side of the hydraulic cylinder 24 to the oil tank 51 (FIG. 2).
  • the closure flap 16 can be pivoted back into its closed position after the container 12 has been emptied by means of the hand lever 23 arranged rigidly on the piston rod 28.
  • the hand lever 23 is pressed in the direction of arrow 54 while simultaneously returning the piston 26 to its starting position, the pressure oil flowing back from the bottom side onto the rod side of the hydraulic cylinder 24 or into the tank 51.
  • FIG. 3 shows a modified embodiment a closure arrangement in which the same parts with are provided with the same reference numbers.
  • the hydraulic cylinder 24 around a container Axis 56 pivotally arranged on the container bottom and the Piston rod via an axis 58 around the container rotatable rocker arm 64 with the closure cover 16 connected, the pivot axes 56,58 and the axis of the swivel joint 30 parallel to the axis of the cleaning opening 10 are arranged.
  • the cover 16 can by means of the hydraulic drive unit 20 in the already described way hydraulically in its outlet position swung out and using the rigid with the Closure cover 16 connected hand lever 23 against the Stop pieces 60 pivoted back into its closed position will. In doing so, the lid engages 16 a run-up slope formed on the stop pieces 60 61 and is thereby in its closed position against the cleaning opening 10 liquid-tight sealing sealing ring pressed.
  • Closure arrangements according to the invention can in addition to the above-mentioned field of application also on others Feed and storage containers and premix troughs be used.
  • the invention relates to an opening and closing arrangement one at a bottom-side cleaning opening 10 of a Material feed container 12 of a thick matter pump 14 arranged closure flap 16.
  • the with a hydraulic Drive unit 20 coupled closure flap 16 can be operated hydraulically by actuating a control valve 48 into its outlet position which releases the cleaning opening 10 be swung out. Swiveling the flap back 16 in its closed position is manually operated by means of a mechanical actuator 23 under simultaneous resetting of the hydraulic drive unit 20 in their starting position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Mechanically-Actuated Valves (AREA)
EP94925434A 1993-08-13 1994-08-05 Anordnung zum öffnen und schliessen einer verschlussklappe Expired - Lifetime EP0776425B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4327177 1993-08-13
DE4327177A DE4327177A1 (de) 1993-08-13 1993-08-13 Anordnung zum Öffnen und Schließen einer Verschlußkappe
PCT/EP1994/002603 WO1995005538A1 (de) 1993-08-13 1994-08-05 Anordnung zum öffnen und schliessen einer verschlusskappe

Publications (2)

Publication Number Publication Date
EP0776425A1 EP0776425A1 (de) 1997-06-04
EP0776425B1 true EP0776425B1 (de) 1998-11-04

Family

ID=6495083

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94925434A Expired - Lifetime EP0776425B1 (de) 1993-08-13 1994-08-05 Anordnung zum öffnen und schliessen einer verschlussklappe

Country Status (6)

Country Link
US (1) US5823748A (ja)
EP (1) EP0776425B1 (ja)
JP (1) JPH10508074A (ja)
DE (2) DE4327177A1 (ja)
ES (1) ES2124907T3 (ja)
WO (1) WO1995005538A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101682147B1 (ko) 2010-04-05 2016-12-05 삼성전자주식회사 변환 및 역변환에 기초한 보간 방법 및 장치
DE102011079121A1 (de) * 2011-07-14 2013-01-17 Putzmeister Engineering Gmbh Dickstoffpumpe mit einem eine Reinigungsöffnung aufweisenden Materialaufgabebehälter
US9371743B2 (en) 2013-02-21 2016-06-21 United Technologies Corporation Cap drain plug

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600499A (en) * 1948-09-25 1952-06-17 Everlasting Valve Co Swinging gate valve mechanism
DE809291C (de) * 1948-12-07 1951-07-26 Ver Baubeschlag Gretsch Co Mit Druckmittel arbeitendes Geraet zum Betrieb einer Schiebetuer, Schwingtuer o. dgl.
DE2547639C2 (de) * 1975-10-24 1984-09-27 Karl Dipl.-Ing. 7000 Stuttgart Schlecht Trichter für Betonpumpe
DE2632816C2 (de) * 1976-07-21 1982-07-29 Friedrich Wilh. Schwing Gmbh, 4690 Herne Abdichtvorrichtung für eine Doppelzylinderpumpe, insbesondere für die Förderung von Beton
DE2943967A1 (de) * 1979-10-31 1981-05-14 Friedrich Wilh. Schwing Gmbh, 4690 Herne Rohrleitungsarmatur mit einem in leitungen, die unter druck stehende dickstoffe, vorzugsweise beton foerdern, einbaubarem gehaeuse zum einwechseln eines wischers
AU540469B2 (en) * 1981-06-10 1984-11-22 Niigata Engineering Co., Ltd. Valve unit for use in concrete pumps
CH657181A5 (en) * 1982-08-31 1986-08-15 Baumgartner & Co Hans Door drive, especially for rail and road vehicles
DE3304985A1 (de) * 1983-02-12 1984-08-23 Rudolf Ing. Riker (grad.), 8940 Memmingen Pumpeneinheit fuer schwerfliessende stoffe, etwa beton
DE3524033A1 (de) * 1984-09-25 1986-04-03 Friedrich Wilh. Schwing Gmbh, 4690 Herne Zweizylinder-dickstoffpumpe mit rohrweiche
DE3538404A1 (de) * 1985-10-29 1987-04-30 Kurt Jooss Drehplattenschieber
AT389501B (de) * 1987-08-12 1989-12-27 Hoerbiger Hydraulik Servosteuerung fuer motorboote
DE3813758A1 (de) * 1988-04-23 1989-11-02 Putzmeister Maschf Materialaufgabebehaelter fuer dickstoffpumpen
CA2007977C (en) * 1990-01-17 1996-04-23 Rene Letarte Sludge pump

Also Published As

Publication number Publication date
ES2124907T3 (es) 1999-02-16
DE59407244D1 (de) 1998-12-10
US5823748A (en) 1998-10-20
JPH10508074A (ja) 1998-08-04
EP0776425A1 (de) 1997-06-04
DE4327177A1 (de) 1995-02-16
WO1995005538A1 (de) 1995-02-23

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