EP0991864B1 - Pompe a piston pour matieres consistantes - Google Patents

Pompe a piston pour matieres consistantes Download PDF

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Publication number
EP0991864B1
EP0991864B1 EP98937452A EP98937452A EP0991864B1 EP 0991864 B1 EP0991864 B1 EP 0991864B1 EP 98937452 A EP98937452 A EP 98937452A EP 98937452 A EP98937452 A EP 98937452A EP 0991864 B1 EP0991864 B1 EP 0991864B1
Authority
EP
European Patent Office
Prior art keywords
piston
pump according
piston pump
water box
floor plate
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
EP98937452A
Other languages
German (de)
English (en)
Other versions
EP0991864A1 (fr
Inventor
Gerald Fischer
Gotthardt Unger
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
Putzmeister Werk Maschinenfabrik 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 Putzmeister AG, Putzmeister Werk Maschinenfabrik GmbH filed Critical Putzmeister AG
Publication of EP0991864A1 publication Critical patent/EP0991864A1/fr
Application granted granted Critical
Publication of EP0991864B1 publication Critical patent/EP0991864B1/fr
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
    • 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 a piston pump for thick matter with at least one hydraulically operated delivery cylinder, whose delivery piston via a common piston rod with the piston of a hydraulic drive cylinder is connected and with a between the feed cylinder and the water tank arranged in the working cylinder, through which the piston rod extends and the one that is accessible from above and on the cover side Installation opening and a water outlet socket arranged on the bottom having.
  • Piston pumps of this type are used for the transport of Thick materials such as concrete, sewage sludge, tunnel excavation and the like used.
  • the water box comes here Above all, a cleaning function: the water tank penetrating common piston rod is from Contamination from the area of the delivery cylinder exempted or kept free to contaminate the Avoid hydraulic fluid. It gets further Water box an important assembly and maintenance function to: The one depending on the abrasiveness of the medium delivery pistons subject to greater or lesser wear must be exchanged at certain time intervals become. They are therefore detachable with the piston rod connected. The assembly takes place within the Water box over its cover-side assembly opening.
  • the water tank is located in a central area of the mobile or stationary Pump frame, in which there are also other units the pump assembly.
  • the above the Water room is therefore available space mostly very cramped, so that the assembly opening and the The inside of the water tank is difficult to access from the outside are.
  • the assembly of the delivery pistons is still in progress complicated by the fact that within the water tank first in a defined mounting position bringing delivery pistons have a high weight and the fastening elements, such as screws and nuts places that are not visible from the outside are. It happens again and again that one Screw or nut during an assembly process falls down and with great effort blind on the bottom of the water tank must be sought.
  • the invention is based on the object the known piston pumps of the above Kind of improving that lighter Piston assembly and maintenance is possible.
  • the solution according to the invention is based on the idea that the piston assembly with two-sided accessibility of the water tank is made considerably easier.
  • the water tank also has a bottom arranged, liquid-tight with a removable base plate has a closable mounting opening.
  • the bottom mounting opening of one circumferential, downward-facing flange is limited, to which the base plate can be attached in a liquid-tight manner is.
  • the bottom plate is form-fitting in an open-edged recess in the water tank intervenes.
  • the base plate expediently a preferably circumferential, form-fitting in one complementary flange recess immersed edge or Rib up. Between the flange and the base plate is a circumferential for better sealing Sealing ring inserted.
  • the outlet nozzle is arranged on the base plate and beyond its outer, downward facing Broad side protrudes. He is expedient about a 90 ° elbow connected to the center of the base plate and essentially stands with its free end parallel to the broad side surface over one of the side edges the base plate outwards so that it is on a frame-fixed, preferably hook-shaped holding member can be detachably attached. If at the water box in addition, a bracket is arranged, the the base plate in the area of its opposite the holding member Reaches under the side edge, the base plate after emptying the water tank from Flange are separated without being held got to. To remove the base plate and release the maintenance opening on the bottom only needs nor the outlet port from the hook-shaped holding member lifted and the base plate pulled out of the bracket to become. To facilitate this, the Base plate one on its outer broad side surface protruding handle.
  • the thick matter pump shown in the drawing exists consisting essentially of two delivery cylinders 10, 12, the front openings 14,16 in a material feed container 18 mouth and alternately during the Pressure strokes (arrow 19) via a diverter 20 with a Delivery line 22 connectable and during the suction stroke (Arrows 24) under suction of material to the material feed container 18 are open.
  • the conveyor cylinders 10,12 are via hydraulic drive cylinders 26,28 driven in push-pull.
  • the delivery pistons 30 via a common piston rod 34 connected to the pistons 38 of the drive cylinders 26, 28.
  • each associated with the delivery piston 30 Not shown stop body can be used, the prevents the delivery pistons and the suction from them Material get into the water tank during operation can.
  • the stopper can come out of the water box can be removed via the mounting opening 44, so that the delivery piston 30 for repair and maintenance purposes can be moved into the water tank.
  • the delivery pistons are on the piston rod with several Screws attached. These screws must be inside of the water box are loosened or attached. Because the water box 42 in a central area the thick matter pump on a mobile or stationary Pump frame 46 is arranged, in which out structural reasons additional units 48, such as a Pump motor or an oil pan, remains above the mounting opening 44 only little free space 50 for the implementation of the assembly work.
  • the water box points 42 in the exemplary embodiments shown additionally a floor-mounted one with a removable one Base plate 52 can be closed in a liquid-tight manner Mounting opening 54 on that of a circumferential, downward flange 56 is limited, on which the base plate 52 by means of screws 58 under intermediate clamps one not shown rotating Sealing rings can be attached in a liquid-tight manner.
  • the free space 60 between the installation surface can measure 62 of the pump frame 46 and the bottom Assembly opening 54 can be used for assembly purposes.
  • the base plate can be used to increase the dimensional stability 52 with a circumferential, not shown Rib or edge are provided with which they are form-fitting insertable into the bottom mounting opening 54 is.
  • a water outlet 66 On the bottom of the bottom plate is a water outlet 66 through a 90 ° elbow 64 connected, the one with a shut-off valve 68 free end over the outer edge of the water tank 42 protrudes and is arranged there on a frame hook-shaped holding member 70 can be hooked.
  • Hook member 70 opposite side edge of the Flange 56 is at least one of the relevant side edge bracket 72 engaging under the base plate 52 arranged together with the hook-shaped holding organ 70 ensures that the bottom plate 52 at Loosening the screws 58 held in an intermediate position will and cannot fall down. If all screws 58 are loosened, the base plate 52 gripped on the handle 74 and from the bracket 72nd and the holding member 70 can be removed (see FIG. 3a and b).
  • the water tank is both above the cover-side mounting opening 44 as well as the bottom side Mounting opening 54 accessible.
  • an assembly aid which in the case of FIG. 2 as one-sided on one Middle beam 76 attached strap 78 formed , the delivery piston to be assembled or disassembled 30 in the correct mounting position in front of the piston rod 34 can be placed from above while the Operation of the fasteners undisturbed can be done via the bottom opening.
  • the invention refers to a piston pump for thick matter, such as concrete, sewage sludge, tunnel overburden and the like.
  • the piston pump has at least one hydraulically operated Delivery cylinder 10, 12, the delivery piston 30 via a common piston rod 34 with the Piston 38 of a hydraulic drive cylinder 26, 28 connected is.
  • the Water box 42 additionally a bottom-side, with a removable bottom plate 52 liquid-tight lockable mounting opening 54.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)

Claims (14)

  1. Pompe à piston pour matières consistantes munie au moins d'un vérin d'alimentation (10, 12) pouvant être actionné hydrauliquement, dont le piston d'alimentation (30) est raccordé au piston (38) d'un vérin d'entraínement hydraulique (26,28) à l'aide d'une tige de piston commune (34), et munie d'un réservoir à eau (42) placé entre le vérin d'alimentation (10, 12) et le vérin d'entraínement hydraulique (26, 28), lequel réservoir à eau est traversé par la tige de piston (34) et présente une ouverture de montage (44) accessible par le haut du côté du capot et une tubulure d'évacuation de l'eau (66) placée du côté du fond et pouvant être fermée, caractérisée en ce que le réservoir à eau (42) présente en plus une ouverture de montage (54) placée au fond et pouvant être fermée de manière étanche aux liquides avec une plaque de fond (52) amovible.
  2. Pompe à piston selon la revendication 1, caractérisée en ce que l'ouverture de montage (54) du côté du fond est limitée par une bride (56) périphérique sur laquelle la plaque de fond (52) peut être fixée de manière étanche aux liquides.
  3. Pompe à piston selon la revendication 2, caractérisée en ce qu'une bague d'étanchéité périphérique est placée entre la bride (56) et la plaque de fond (52).
  4. Pompe à piston selon l'une des revendications 1 à 3, caractérisée en ce que la plaque de fond (52) a prise par conjonction de forme dans un creux ouvert sur le bord du réservoir à eau (42).
  5. Pompe à piston selon la revendication 4, caractérisée en ce que la plaque de fond (52) présente une arête ou une nervure, de préférence périphérique, s'insérant dans un approfondissement complémentaire de la bride par conjonction de forme.
  6. Pompe à piston selon l'une des revendications 1 à 5, caractérisée en ce que la tubulure d'évacuation (66) est placée sur la plaque de fond (52) et dépasse de la surface extérieure de son côté large et dirigée vers le bas sur le côté du bord.
  7. Pompe à piston selon la revendication 6, caractérisée en ce que la tubulure d'évacuation (66) dépasse vers l'extérieur avec son extrémité libre essentiellement parallèlement à la surface du côté large au-delà d'un bord latéral de la plaque de fond (52) et qu'elle peut être accrochée de façon amovible à un organe de maintien (70) de préférence en forme de crochet, fixé au cadre ou au réservoir à eau.
  8. Pompe à piston selon l'une des revendications 1 à 7, caractérisée en ce que la tubulure d'évacuation (66) est raccordée au milieu de la plaque de fond (52) à l'aide d'un coude à 90° (64).
  9. Pompe à piston selon l'une des revendications 1 à 8, caractérisée par une équerre de maintien (72) placée sur le réservoir à eau, laquelle équerre a prise en-dessous de la plaque de fond (52) dans la partie de l'un des ses bords latéraux.
  10. Pompe à piston selon la revendication 9, caractérisée en ce que l'équerre de maintien (72) est placée sur le bord de l'ouverture de montage (54) du côté du fond opposé à l'organe de maintien (70) en forme de crochet.
  11. Pompe à piston selon l'une des revendications 1 à 10, caractérisée en ce que la plaque de fond (52) présente une poignée (74) dépassant de la surface extérieure du côté large.
  12. Pompe à piston selon l'une des revendications 1 à 11, caractérisée par un élément de montage (78) insérable dans le réservoir à eau (42) par l'intermédiaire de l'ouverture de montage (44) du côté du capot, et par un piston d'alimentation (30) pouvant être orienté à l'intérieur du réservoir à eau (42) par rapport à la tige de piston (34).
  13. Pompe à piston selon la revendication 12, caractérisée en ce que l'élément de montage peut être bloqué sur le réservoir à eau (42), de préférence dans la partie du bord de l'ouverture de montage (44) du côté du capot.
  14. Pompe à piston selon la revendication 12 ou 13, caractérisée en ce que l'élément de montage (78) est formé comme ceinture fixable sur le réservoir à eau (42) et ayant prise en-dessous du piston d'alimentation (30) et à l'intérieur du réservoir à eau.
EP98937452A 1997-06-26 1998-06-06 Pompe a piston pour matieres consistantes Expired - Lifetime EP0991864B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19727103 1997-06-26
DE19727103A DE19727103A1 (de) 1997-06-26 1997-06-26 Kolbenpumpe für Dickstoffe
PCT/EP1998/003403 WO1999000599A1 (fr) 1997-06-26 1998-06-06 Pompe a piston pour matieres consistantes

Publications (2)

Publication Number Publication Date
EP0991864A1 EP0991864A1 (fr) 2000-04-12
EP0991864B1 true EP0991864B1 (fr) 2002-04-03

Family

ID=7833676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98937452A Expired - Lifetime EP0991864B1 (fr) 1997-06-26 1998-06-06 Pompe a piston pour matieres consistantes

Country Status (5)

Country Link
US (1) US6116865A (fr)
EP (1) EP0991864B1 (fr)
DE (2) DE19727103A1 (fr)
ES (1) ES2173605T3 (fr)
WO (1) WO1999000599A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100281932B1 (ko) * 1998-10-10 2001-09-22 양재신 드라이브 실린더 유압장치
US6511302B1 (en) 2001-07-05 2003-01-28 Magnum Pumps, Inc. Slurry piston pump with cylinder cleaning apparatus
US6733247B2 (en) 2001-12-28 2004-05-11 Magnum Pumps, Inc. Pumping device for viscous slurry material
DE102005039238B4 (de) * 2005-08-19 2016-05-25 Schwing Gmbh Betonfördervorrichtung mit einem Wasserkasten
CN101776053B (zh) * 2010-03-16 2012-09-05 三一重工股份有限公司 混凝土泵送结构
CN102410198B (zh) * 2011-09-15 2015-01-14 三一汽车制造有限公司 混凝土泵送设备及其泵送机构
CN102927078B (zh) * 2012-10-31 2016-01-20 三一重工股份有限公司 一种液压油缸及具有其的泵送机构、工程机械
FR3105207B1 (fr) 2019-12-23 2022-04-29 Syctom Lagence Metropolitaine Des Dechets Menagers Dispositif d’injection sous haute pression d’un mélange humide
FR3105252B1 (fr) 2019-12-23 2023-01-20 Syctom Lagence Metropolitaine Des Dechets Menagers Dispositif d’injection sous haute pression d’une ressource organique
FR3112089B1 (fr) 2020-07-02 2024-01-19 Commissariat Energie Atomique Dispositif d’injection sous haute pression d’un effluent
DE102023110126B3 (de) 2023-04-20 2024-05-08 Putzmeister Engineering Gmbh Dickstoffpumpe und Verfahren zum Betrieb einer Dickstoffpumpe

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146721A (en) * 1960-08-08 1964-09-01 Schwing Friedrich Wilhelm Hydraulic piston pump for the pumping of viscous pulpy or plastic substances
NL267540A (fr) * 1960-08-08
DE1907508A1 (de) * 1969-02-14 1970-09-03 Scheele Kg Walter Tandem-Anordnung zweier Kolbenmaschinen
US3682575A (en) * 1970-12-10 1972-08-08 Karl Guddal Concrete pump
DE2757035C3 (de) * 1977-12-21 1980-09-11 Wibau Industrie Und Verwaltung Gmbh, 6466 Gruendau Betonkolbenpumpe
DE3024139C2 (de) * 1980-06-27 1986-04-10 Friedrich Wilh. Schwing Gmbh, 4690 Herne Zweizylinderdickstoffpumpe
EP0085521B2 (fr) * 1982-01-22 1991-11-13 Hydroseal Concrete Pumps Limited Pompe pour matières épaisses
DE3304985A1 (de) * 1983-02-12 1984-08-23 Rudolf Ing. Riker (grad.), 8940 Memmingen Pumpeneinheit fuer schwerfliessende stoffe, etwa beton
JPS6131677A (ja) * 1984-07-25 1986-02-14 Kyokuto Kaihatsu Kogyo Co Ltd ピストン式コンクリ−トポンプにおける洗浄方法および装置
DE3861434D1 (de) * 1987-06-27 1991-02-07 Putzmeister Maschf Zweizylinder-dickstoffpumpen.
US5180294A (en) * 1992-03-04 1993-01-19 Confloat Consulting Ltd. Concrete pump having pressurized seal for swing tube
US5332366A (en) * 1993-01-22 1994-07-26 Schwing America, Inc. Concrete pump monitoring system

Also Published As

Publication number Publication date
DE59803633D1 (de) 2002-05-08
EP0991864A1 (fr) 2000-04-12
WO1999000599A1 (fr) 1999-01-07
ES2173605T3 (es) 2002-10-16
DE19727103A1 (de) 1999-01-07
US6116865A (en) 2000-09-12

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