EP0118749B1 - Pumpe, insbesondere für Beton - Google Patents

Pumpe, insbesondere für Beton Download PDF

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Publication number
EP0118749B1
EP0118749B1 EP84101212A EP84101212A EP0118749B1 EP 0118749 B1 EP0118749 B1 EP 0118749B1 EP 84101212 A EP84101212 A EP 84101212A EP 84101212 A EP84101212 A EP 84101212A EP 0118749 B1 EP0118749 B1 EP 0118749B1
Authority
EP
European Patent Office
Prior art keywords
housing
pump
pump according
cylinder
cylinder tubes
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
Application number
EP84101212A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0118749A1 (de
Inventor
Rudolf Riker
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0118749A1 publication Critical patent/EP0118749A1/de
Application granted granted Critical
Publication of EP0118749B1 publication Critical patent/EP0118749B1/de
Expired 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • 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
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0019—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers
    • F04B7/0034—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers and having an orbital movement, e.g. elbow-pipe type members
    • 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 pump, in particular for concrete, with two parallel pump cylinders, at the rear ends of a cistern and at the front ends of a housing for a control pipe valve is connected, which is pivotally mounted about an axis above the pump cylinder in the housing which is accessible through at least one housing part that can be moved or released into an open position.
  • Pumps of this type are known (e.g. DE-C-2 814 845). They differ among other things due to different types of control spool valves. What they have in common, however, is the basic structure according to which the pump cylinders, the cistern and the pipe slide housing are separate components, which are either releasably connected to one another by screwing the end flanges of the pump cylinders onto the cistern and the pipe slide housing, or through tie rods for clamping the pump cylinder between the cistern and slide valve housing can be used.
  • the replacement of the pump cylinders subject to wear requires disassembly of the entire pump. Furthermore, the manufacturing costs of the separately manufactured and precisely assembled individual components are high and the sealing at high pump pressures is problematic.
  • the object of the invention is to provide a rigid pump unit in which the pump cylinders can be replaced more easily without having to disassemble the entire pump unit.
  • the cistern and the housing are inseparably connected to one another by a connecting device to form a rigid structural unit in which the two pump cylinders designed as flange-free cylinder tubes are rotatably supported and releasably fixed at one end by means of a fastening device such that the axial projections the cylinder tubes pass through the movable or detachable housing part and that the cylinder tubes can be pulled out axially through the housing after loosening the fastening devices and the housing part located or released in the open position.
  • the rigid structural unit increases the bending stiffness and enables cost-effective production.
  • the connecting device which is preferably designed as a box receiving the cylinder tubes, is self-supporting, so that the necessary additional equipment can be attached to it very easily.
  • the cylinder tubes can easily be turned to another position, pulled out through the open tube slide housing and turned back through 180 °, or completely replaced without having to dismantle the pump.
  • a concrete pump 10 consists of a sheet metal box 14 surrounding two cylinder tubes 12, which is welded to a rigid structural unit at both ends with a flushing water tank 16 and a tube slide housing 18.
  • a piston 20 In each cylinder 12 there is a piston 20, the piston rod 22 of which is flushed through the water tank 16 extends through and into a hydraulic cylinder 24 and carries a hydraulic piston there.
  • a receiving funnel 26 is mounted on the slide valve housing 18.
  • the sheet metal box 14 carries impeller supports 28 and drive and control units 30, 32 for the hydraulic cylinders.
  • a slide valve 34 is mounted so as to be pivotable about a parallel axis 36 above the cylinder tubes 12 and centrally to these in a front wall 38 and a rear wall 40 of the housing.
  • One or two hydraulic cylinders 43 engage on the pivot pin 42 of the pipe slide 34 protruding from the rear wall 40.
  • the front wall 38 which forms a rigid structural unit with the housing side walls 44, 46 and the rear wall 40, comprises only the upper bearing half for the outlet-side mounting of the tube slide valve 34.
  • the lower bearing half is formed by a bearing half shell 48 which can be removed downwards and which is attached by means of screws the front wall 38 is attached.
  • the housing 18 is closed by a bottom flap 50 which can be folded down about a pivot bearing 52. By means of a hydraulic cylinder 54, the bottom flap 50 can be pivoted into the closed position and locked on the lower half-shell 48.
  • the tubular slide valve 34 On the input side, the tubular slide valve 34 carries an easily replaceable wear ring 56, which rests on two-piece wear glasses 58, which are fastened to the rear wall 40 by screws 60 from the rear of the housing.
  • the cylinder tubes 12 directly adjoin the recessed wear glasses 58.
  • the pivot bearing 52 of the Bottom flap 50 is so far displaced in the direction of the flushing water tank 16 that, when the bottom flap is open, the wear ring 56 and half of the wear glasses 58 can be removed downward without having to dismantle the pipe slide 34.
  • a clamping ring 62 After removal of one half of the wear glasses, a clamping ring 62 is exposed, which, according to FIG. 6, clamps the cylinder tube 12 against the front wall 64 of the cistern 16. Both ends of each cylinder tube 12 are identical.
  • the cistern wall 64 has a bore 68 for each cylinder tube 12, with which the cylinder tube is centered when it enters the functional position thanks to a ramp plate 70 attached to the bottom of the plate box 14.
  • the shoulders 66 provided at the ends of the tube 12 form annular shoulders 72.
  • the annular shoulder 72 on the cistern side rests on the cistern wall 64 and the clamping ring 62 is supported on the annular shoulder 72 of the cylinder tube 12 on the slide housing side.
  • the clamping ring 62 is fastened to the rear wall 40 by means of four screws 74.
  • the screws 74 can be loosened through the open tube slide housing and the cylinder tube 12 can be rotated into a different rotational position without the tube slide 34 having to be removed.
  • the cylinder tube 12 can also be pulled out axially through the tube slide housing 18 without having to remove the tube slide, since the axial projection of the cylinder tube 12 lies fully within the contour of the bottom flap 50, so that not even the lower half-shell 48 is removed got to. Thanks to the identical design of the two cylinder tube ends, this can be reinstalled after turning through 180 °.
  • the tubular slide valve 34 can in turn be easily removed without the receiving funnel 26 having to be removed, simply by loosening the fastening of the actuating cylinder 42 and the screw rings 76, removing the lower bearing half-shell 48 downward and the tubular slide valve 34 axially towards the middle in a pivoted position is pulled out.
  • FIGS. 7 and 8 illustrates a pipe slide 35 which differs from the pipe slide 34 in that the pipe axis on the outlet side does not coincide with the pivot axis 36.
  • the pipe slide housing 19 has a circumferentially closed front wall 39, to which an end plate 51 is screwed, which closes the end face of the housing.
  • the end plate 51 forms the removable housing part, after removal of which the cylinder tubes 12 can be pulled out axially through the housing 19 in the manner already described, but after removal of the tube slide 35 whose end on the outlet side is widened kidney-shaped in a manner known per se.
  • the bottom flap 53 can also be opened and facilitates the removal of the clamping ring 62.
  • the cylinder tube 12 can also be removed axially without opening the bottom flap 53.
  • the device connecting the housing 18 or 19 to the flushing water tank 16 is shown as a prismatic sheet metal box. It is understood that the sheet metal box 14 can also be replaced by an open frame, as well as by two outer tubes in which the cylinder tubes 12 are received.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP84101212A 1983-02-12 1984-02-07 Pumpe, insbesondere für Beton Expired EP0118749B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3304985 1983-02-12
DE19833304985 DE3304985A1 (de) 1983-02-12 1983-02-12 Pumpeneinheit fuer schwerfliessende stoffe, etwa beton

Publications (2)

Publication Number Publication Date
EP0118749A1 EP0118749A1 (de) 1984-09-19
EP0118749B1 true EP0118749B1 (de) 1987-02-04

Family

ID=6190777

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84101212A Expired EP0118749B1 (de) 1983-02-12 1984-02-07 Pumpe, insbesondere für Beton

Country Status (5)

Country Link
US (1) US4563135A (enrdf_load_stackoverflow)
EP (1) EP0118749B1 (enrdf_load_stackoverflow)
JP (5) JPS59147884A (enrdf_load_stackoverflow)
KR (1) KR860001221B1 (enrdf_load_stackoverflow)
DE (2) DE3304985A1 (enrdf_load_stackoverflow)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3304985A1 (de) * 1983-02-12 1984-08-23 Rudolf Ing. Riker (grad.), 8940 Memmingen Pumpeneinheit fuer schwerfliessende stoffe, etwa beton
DE3813758A1 (de) * 1988-04-23 1989-11-02 Putzmeister Maschf Materialaufgabebehaelter fuer dickstoffpumpen
JPH0270983A (ja) * 1988-09-07 1990-03-09 Kyokuto Kaihatsu Kogyo Co Ltd ピストン式コンクリートポンプのバルブケース
DE4209471A1 (de) * 1992-03-24 1993-09-30 Schwing Gmbh F Dickstoffpumpe für Förderzylindern, insbesondere Zweizylinderbetonpumpe
JP3145488B2 (ja) * 1992-07-10 2001-03-12 三菱重工業株式会社 コンクリートポンプのｓ形ゲートバルブ摺動面密着装置
DE4327177A1 (de) * 1993-08-13 1995-02-16 Putzmeister Maschf Anordnung zum Öffnen und Schließen einer Verschlußkappe
NL1004549C2 (nl) * 1996-11-18 1998-05-19 Hama Nederland B V Mobiele pompinrichting en koppeling.
DE19727103A1 (de) * 1997-06-26 1999-01-07 Putzmeister Ag Kolbenpumpe für Dickstoffe
US6305916B1 (en) * 1999-01-13 2001-10-23 Gerald Reinert Concrete pump with pivotable hopper assembly
DE10343802B4 (de) * 2003-09-22 2007-12-06 Schwing Gmbh Kolben-Dickstoffpumpe mit kontinuierlichem Förderstrom
DE102004009363B4 (de) * 2004-02-26 2008-01-24 Schwing Gmbh Kolben-Dickstoffpumpe
US7462020B2 (en) * 2004-05-28 2008-12-09 Reinert Manufacturing Inc. Concrete pump with pivotable hopper asssembly
CN102297125B (zh) * 2011-08-08 2015-09-16 湘潭大唐焊接材料有限公司 耐磨切割环及其制造方法
CN102305210B (zh) * 2011-08-08 2015-09-16 湘潭大唐焊接材料有限公司 耐磨眼镜板及其制造方法
CN103321871B (zh) * 2013-06-21 2016-04-06 中联重科股份有限公司 泵送机构及包含该泵送机构的泵送设备
US10001114B1 (en) 2017-03-28 2018-06-19 Jessop Initiatives LLC Continuous flow pumping system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2814845C3 (de) * 1978-04-06 1981-06-11 Stetter Gmbh, 8940 Memmingen Betonflußsteuerschieber einer Betonpumpe mit einem s-förmigen Schwenkrohr

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US333132A (en) 1885-12-29 Saeah j
DE1166625B (de) * 1959-03-14 1964-03-26 Johanne Kaestner Geb Koerner Pumpe, insbesondere Betonpumpe, mit grosser Baulaenge und mit einem hydraulisch betaetigten Antriebskolben
US3037460A (en) * 1960-04-26 1962-06-05 Armco Steel Corp Pumps
US3137216A (en) * 1962-07-19 1964-06-16 Armco Steel Corp Cylinder head arrangements
US3266435A (en) * 1963-12-09 1966-08-16 Smith Eugene Pump for semi-fluid material
DE1453705A1 (de) * 1963-12-19 1969-09-18 Wennberg Olav Carl Gustav Kolbenpumpe fuer Beton oder andere Massen aehnlicher Konsistenz
US3639086A (en) * 1968-04-03 1972-02-01 Tubular Structures Corp Concrete pump
US3532442A (en) * 1969-01-27 1970-10-06 Morgen Mfg Co Mobile concrete pump
DE2162406C3 (de) * 1971-12-16 1979-03-01 Karl Dipl.-Ing. 7024 Bernhausen Schlecht Schiebervorrichtung fur eine Pumpe mit zwei im Gegentakt arbeitenden Zylindern zum Fördern von Beton o.dgl
US3771801A (en) * 1972-06-05 1973-11-13 Greene Tweed & Co Inc Sealing device
US3811802A (en) * 1972-12-06 1974-05-21 Eng Concrete Placer Inc Slurry pump cleanout mechanism
DE2415276C2 (de) * 1974-03-29 1976-11-11 Friedrich Schwing Pumpe zum Fördern von Dickstoffen, insbesondere Beton
DE2632816C2 (de) * 1976-07-21 1982-07-29 Friedrich Wilh. Schwing Gmbh, 4690 Herne Abdichtvorrichtung für eine Doppelzylinderpumpe, insbesondere für die Förderung von Beton
DE2757035C3 (de) * 1977-12-21 1980-09-11 Wibau Industrie Und Verwaltung Gmbh, 6466 Gruendau Betonkolbenpumpe
JPS591354B2 (ja) * 1978-12-11 1984-01-11 極東開発工業株式会社 コンクリ−トポンプ
DE7906553U1 (de) * 1979-03-09 1982-01-21 Stetter Gmbh, 8940 Memmingen Steuervorrichtung einer mehrzylinderpumpe fuer breiige massen
JPS5615463U (enrdf_load_stackoverflow) * 1979-07-13 1981-02-10
DE2933128C2 (de) * 1979-08-16 1985-09-26 Friedrich Wilh. Schwing Gmbh, 4690 Herne Dickstoffpumpe, insbesondere zur Förderung von Beton
DE3009746A1 (de) * 1980-03-14 1981-10-01 Stetter Gmbh, 8940 Memmingen Steuerschieber einer betonpumpe
JPS5773458U (enrdf_load_stackoverflow) * 1980-10-22 1982-05-06
DE3148484A1 (de) * 1981-12-08 1983-06-16 Stetter Gmbh, 8940 Memmingen Verschleissschutz einer betonpumpe
DE3304985A1 (de) * 1983-02-12 1984-08-23 Rudolf Ing. Riker (grad.), 8940 Memmingen Pumpeneinheit fuer schwerfliessende stoffe, etwa beton
US4576386A (en) * 1985-01-16 1986-03-18 W. S. Shamban & Company Anti-extrusion back-up ring assembly

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2814845C3 (de) * 1978-04-06 1981-06-11 Stetter Gmbh, 8940 Memmingen Betonflußsteuerschieber einer Betonpumpe mit einem s-förmigen Schwenkrohr

Also Published As

Publication number Publication date
JPS59147884A (ja) 1984-08-24
JPH0444110B2 (enrdf_load_stackoverflow) 1992-07-20
JP2553983B2 (ja) 1996-11-13
DE3462353D1 (en) 1987-03-12
KR840007614A (ko) 1984-12-08
KR860001221B1 (ko) 1986-08-27
DE3304985A1 (de) 1984-08-23
JPH05202843A (ja) 1993-08-10
US4563135A (en) 1986-01-07
JPH0794818B2 (ja) 1995-10-11
JPH0134306B2 (enrdf_load_stackoverflow) 1989-07-18
EP0118749A1 (de) 1984-09-19
JPH05202844A (ja) 1993-08-10
JPH0134307B2 (enrdf_load_stackoverflow) 1989-07-18
JPS62189382A (ja) 1987-08-19
JPS62189381A (ja) 1987-08-19

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