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EP0024343A1 - Pompe pour la distribution de matières visqueuses, notamment pour béton - Google Patents

Pompe pour la distribution de matières visqueuses, notamment pour béton Download PDF

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Publication number
EP0024343A1
EP0024343A1 EP80104781A EP80104781A EP0024343A1 EP 0024343 A1 EP0024343 A1 EP 0024343A1 EP 80104781 A EP80104781 A EP 80104781A EP 80104781 A EP80104781 A EP 80104781A EP 0024343 A1 EP0024343 A1 EP 0024343A1
Authority
EP
European Patent Office
Prior art keywords
housing
shaft
swivel
distance
swivel body
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.)
Granted
Application number
EP80104781A
Other languages
German (de)
English (en)
Other versions
EP0024343B1 (fr
Inventor
Friedrich Dipl.-Ing. Schwing
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.)
Friedrich Wilhelm Schwing GmbH
Original Assignee
Friedrich Wilhelm Schwing 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 Friedrich Wilhelm Schwing GmbH filed Critical Friedrich Wilhelm Schwing GmbH
Priority to AT80104781T priority Critical patent/ATE1204T1/de
Publication of EP0024343A1 publication Critical patent/EP0024343A1/fr
Application granted granted Critical
Publication of EP0024343B1 publication Critical patent/EP0024343B1/fr
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
    • 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 thick matter pump, in particular for conveying concrete through the housing of a pipe switch, which has a swivel body fastened to a swivel shaft, which alternately connects an outlet opening made in a housing wall with two inlet openings arranged in another housing wall, the center points of the inlet and outlet openings are each arranged at a radial distance from the shaft axis.
  • Thick matter pumps not only serve to convey concrete, but can also mix substances with a mud-like consistency, e.g. B. Promote sewage sludge.
  • the invention is however in following described on the basis of the promotion of concrete, because this is for various reasons, e.g. B. is due to the deterioration of the liquid deterioration of the concrete and the wear effect of the sand contained in the concrete is a particularly difficult to pump medium.
  • a thick matter pump generally has two alternately conveying cylinders, each of which is assigned an inlet opening in the housing of the pipe switch, through which the partial quantity expressed by the relevant piston from the cylinder reaches the swivel body.
  • the outlet opening is preferably assigned to only one delivery line into which the pumped concrete is directed.
  • the pipe switch enables the respective suction feed cylinder to suck in the concrete from a prefilling container, which is usually attached above the housing, which is then conveyed in the following pump cycle.
  • a thick matter pump is known from US-PS 12 78 247, in which the pipe switch is provided with a swivel body adapted to the curvature of the housing base, which has a round inlet opening and two outlet openings, the boundary edges of which partially coincide. The distance of all three openings from the axis of the swivel shaft is the same.
  • a spectacle plate is placed on the relevant inner wall of the housing. A considerable axial force then acts on this component.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of designing such a thick matter pump in such a way that the mechanical loads on the housing wall having the inlet openings are greatly reduced by the swivel body without having to accept increased bending loads on the swivel shaft.
  • the advantages achieved by the invention are essentially to be seen in the fact that the choice of the distances in relation to a point lying on the shaft axis allows freedom from moments or approximately freedom from moments to be achieved. In this way, the remaining axial force can be removed with the shaft without bending, for example via a bearing that is subjected to pressure or tension. This camp can be arranged outside the masses to be conveyed.
  • the sealing is simplified by relieving the pressure on the housing wall, which gives the possibility of arranging axially movable sealing rings at the openings of the swivel body.
  • the outline of the partially coinciding outlet openings can be kidney-shaped in the swivel body.
  • a thrust bearing arranged on the outlet side of the housing is expediently provided for axially supporting the pivot shaft. This thrust bearing is loaded with the pivot shaft in the opposite direction to the conveying direction.
  • the pivot shaft advantageously has an axial thrust bearing on the inlet side of the housing, which is designed as a clamping device for the housing.
  • the swivel body With a shortened design of the swivel body, there are shortened components of the housing, which are so strong without much effort can lead to only minimal expansion of the housing in the axial direction.
  • the axial expansion of the housing is considerably reduced by the axial force which is transmitted from the swivel shaft via the axial bearing to the housing in the opposite direction. If the swivel shaft is also provided with the clamping device described on the inlet side, the axial expansion of the housing can be almost completely suppressed due to the rigidity of the swivel shaft in relation to tensile loads.
  • the swivel body is only axially guided by the swivel shaft and is also supported on the swivel shaft in the axial direction, as a result of which the swivel shaft is not subjected to any bending loads and the control housing is not subjected to twisting thrust loads.
  • This is based on u. a. the advantage that sealing rings placed on the swivel body, which optimally fit under the concrete pressure against the boundary surfaces of the control housing running perpendicular to the swivel shaft, can adapt to the latter. As a result, uneven wear and tear as well as structural faults in the housing can be compensated for.
  • the design according to the invention ensures that the friction during the pivoting process and thus also the wear can be kept to a minimum because the axial force can be supported outside the concrete on a normal rotary slide bearing. Since the remaining axial expansions of the housing are very small, any tendency to jam is effectively counteracted by sand particles pressed into the gaps.
  • the pipe switch 2 has an axially short housing 3. This housing 3 is divided in the transverse direction by means of a rib which forms a transverse wall 4. On the transverse wall 4, an eyeglass plate 5 is fastened, in which inlet openings 6 and 7 are formed for the concrete conveyed by two conveying cylinders 8 and 9 (FIG. 2). The ends of the two delivery cylinders 8 and 9 are held in sleeves 10 and 11, respectively, which have seals 12 on their end faces and are held in the rear housing wall 5 'except in the transverse wall 4.
  • the housing which is formed in one piece with the walls 4 and 5 ′ mentioned, is closed by a cover 14.
  • Screws 15 are arranged on a bolt circle of the cover 14, which screws can be screwed into corresponding bores in the housing flange 16.
  • the two delivery cylinders 8 and 9 suck from the prefill container 1 Concrete alternately on the interior 24 of the housing 3.
  • the cylinders alternately press the sucked-in concrete through the inlet openings 6 and 7 in the spectacle plate 5.
  • the inlet openings 6 and 7 are connected to the outlet opening 25 of the housing 3 provided in the wear plate 17.
  • a swivel body, generally designated 26 (FIGS. 1 and 2), is used, the design of which results in particular from FIGS. 3 and 4.
  • the swivel body 26 has an entry opening 28 which is surrounded by the axially movable ring 27 shown in FIG. 2 and which is surrounded by the edge designated 29 in FIG. 2. This edge gives the inlet opening 28 a circular clear cross section.
  • the center of gravity is therefore in the middle of the circular area.
  • the swivel body has at its opposite end an exit surface surrounded by an axially movable ring 30.
  • This area is delimited by the end edge 31 of the swivel body 26 and is designated 32.
  • Its outline is kidney-shaped, as can be seen in particular from FIG. 4. Accordingly, the circular outlet openings partially collapse within the kidney-shaped boundary.
  • the center of gravity lies in the middle of the kidney-shaped outlet opening 32. It has a radial distance R 2 from the geometric axis designated 35 in FIG. 1, while the inlet opening 28 has a radial distance R 1 from the geometric axis 35.
  • the swivel body 26 is formed in one piece with an arm 37 which interacts with a bearing cover 38.
  • the bearing cover 38 can be connected to the arm 37 by means of two pairs of screws 39 and 40, so that a central section of a pivot shaft 44 can be clamped between the two parts described.
  • the swivel shaft 44 is provided with a polygonal section 45 in the region of the swivel body 26. This ends at a collar 46 with an enlarged diameter, so that the swivel body 26 can be axially fixed on the shaft.
  • the collar 46 merges into a reduced-diameter cylindrical section 47, which is supported in a combined radial and axial bearing 48.
  • the polygonal section 45 merges into a reduced-diameter cylindrical section 49, which continues into a further reduced-diameter spindle section 50.
  • a nut 52 with a lock nut 51 can be screwed onto the spindle section.
  • the pivot shaft is supported on a multi-part disk 53, which in turn is supported on the end face of a bearing bush 54.
  • the bearing bush 54 is therefore an axial thrust bearing which is loaded against the direction of conveyance of the concrete by the swivel body 26.
  • the value z denotes a size which depends on the construction and indicates how many times the hydrostatically acted area of the swivel body at the inlet opening is smaller than the hydrostatically acted area of the kidney-shaped exit area.
  • the pivot shaft 44 can accordingly be tensioned at both ends, so that deformations of the parts which absorb the axial bearing loads can be counteracted.
  • the keyways 62 are therefore arranged behind the nuts 63 and 64, which enable the axial bracing and belong to the bearing generally designated 6.6.
  • the arrangement is selected such that the pivot shaft 44, on which the pivot body 26 is suspended, is axially supported on at least one bearing 54 or 66, which is arranged on the front or rear housing wall 17 or 4, 5 ' can be.
  • the swivel body 26 is designed such that it covers one of the two inlet openings 6, 7 in the housing in the two end positions of the swivel shaft 44 and covers the outlet opening in the housing on the opposite side of the housing.
  • the swivel body or the arm 70 connecting it to the swivel shaft in FIG. 5 or 37 in FIG. 3 are designed such that the assignment of the swivel body to the swivel shaft described at the outset results.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP80104781A 1979-08-16 1980-08-13 Pompe pour la distribution de matières visqueuses, notamment pour béton Expired EP0024343B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104781T ATE1204T1 (de) 1979-08-16 1980-08-13 Pumpe zur foerderung von dickstoffen, insbesondere von beton.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2933128A DE2933128C2 (de) 1979-08-16 1979-08-16 Dickstoffpumpe, insbesondere zur Förderung von Beton
DE2933128 1979-08-16

Publications (2)

Publication Number Publication Date
EP0024343A1 true EP0024343A1 (fr) 1981-03-04
EP0024343B1 EP0024343B1 (fr) 1982-06-16

Family

ID=6078560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104781A Expired EP0024343B1 (fr) 1979-08-16 1980-08-13 Pompe pour la distribution de matières visqueuses, notamment pour béton

Country Status (18)

Country Link
US (1) US4373875A (fr)
EP (1) EP0024343B1 (fr)
JP (1) JPS5823511B2 (fr)
AR (1) AR220645A1 (fr)
AT (1) ATE1204T1 (fr)
AU (1) AU538946B2 (fr)
BR (1) BR8005186A (fr)
CA (1) CA1156089A (fr)
CS (1) CS219288B2 (fr)
DD (1) DD152607A5 (fr)
DE (1) DE2933128C2 (fr)
ES (1) ES494213A0 (fr)
HU (1) HU183198B (fr)
MX (1) MX150696A (fr)
PL (1) PL129910B1 (fr)
SU (1) SU1163803A3 (fr)
YU (1) YU41938B (fr)
ZA (1) ZA805037B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4486156A (en) * 1981-06-09 1984-12-04 Maschinenfabrik Walter Scheele Gmbh & Co. Kg Concrete pump with buttressed distribution pipe
EP0562498A1 (fr) * 1992-03-24 1993-09-29 Schwing GmbH Pompe pour matières épaisses munie de cylindres refoulants, en particulier pompe à béton bi-cylindre

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113787C2 (de) * 1981-04-04 1985-08-22 Friedrich Wilh. Schwing Gmbh, 4690 Herne Rohrweiche für Beton- oder Dickstoffkolbenpumpen
JPS57201727U (fr) * 1981-06-17 1982-12-22
DE3304985A1 (de) * 1983-02-12 1984-08-23 Rudolf Ing. Riker (grad.), 8940 Memmingen Pumpeneinheit fuer schwerfliessende stoffe, etwa beton
DE3419832A1 (de) * 1984-05-26 1985-11-28 Karl Dipl.-Ing. 7000 Stuttgart Schlecht Rohrweiche einer dickstoff, insbesondere beton foerdernden doppelkolbenpumpe
JPS6153471A (ja) * 1984-08-22 1986-03-17 Daiwa Kiko Kk コンクリ−トポンプ
JPS6145008U (ja) * 1984-08-28 1986-03-25 釜屋化学工業株式会社 コンパクト容器
JPH0355378Y2 (fr) * 1985-07-15 1991-12-10
US5302094A (en) * 1988-07-19 1994-04-12 Putzmeister-Werk Maschinenfabrik Gmbh Tube switch for a double-cylinder sludge pump
DE10155787A1 (de) * 2001-11-14 2003-05-22 Putzmeister Ag Materialaufgabebehälter für Zweizylinder-Dickstoffpumpen
DE10343802B4 (de) * 2003-09-22 2007-12-06 Schwing Gmbh Kolben-Dickstoffpumpe mit kontinuierlichem Förderstrom
DE102004009362B4 (de) * 2004-02-26 2008-01-24 Schwing Gmbh Kolben-Dickstoffpumpe
DE102004009363B4 (de) * 2004-02-26 2008-01-24 Schwing Gmbh Kolben-Dickstoffpumpe
US20060193738A1 (en) * 2005-02-26 2006-08-31 Friedrich Schwing Pump apparatus and method for continuously conveying a viscous material
DE102005008938B4 (de) * 2005-02-26 2007-01-25 Schwing, Friedrich, Dipl.-Ing. Pumpvorrichtung und Verfahren zur kontinuierlichen Förderung breiiger Massen
US7513758B2 (en) 2005-11-08 2009-04-07 Good Earth Tools, Inc. Sealing rings for abrasive slurry pumps
DE102009005318B3 (de) * 2009-01-16 2010-09-30 Schwing, Friedrich, Dipl.-Ing. Verfahren zur Förderung breiiger Massen und Pumpvorrichtung zur Förderung breiiger Massen
DE102013114008A1 (de) * 2013-12-13 2015-06-18 MPS-Matter Pumpsysteme GmbH Dickstoffpumpvorrichtung, insbesondere für eine fahrbare Dickstoffpumpe
US10001114B1 (en) 2017-03-28 2018-06-19 Jessop Initiatives LLC Continuous flow pumping system
CN109098959B (zh) * 2018-07-24 2019-12-03 山东科技大学 一种混凝土湿喷机分配阀结构
US10900302B2 (en) 2018-07-27 2021-01-26 Country Landscapes & Tree Service, LLC Directional drilling systems, apparatuses, and methods
DE102019204244A1 (de) * 2019-03-27 2020-10-01 Putzmeister Engineering Gmbh Druckverfahren und Drucksystem
CN111043027B (zh) * 2020-01-03 2024-10-29 徐州徐工施维英机械有限公司 一种分配阀及泵送机械
DE102020133021A1 (de) * 2020-12-10 2022-06-15 Liebherr-Mischtechnik Gmbh Dickstofffördervorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3298322A (en) * 1966-04-20 1967-01-17 Robert T Sherrod Pump for semi-fluid materials
DE1453705A1 (de) * 1963-12-19 1969-09-18 Wennberg Olav Carl Gustav Kolbenpumpe fuer Beton oder andere Massen aehnlicher Konsistenz
FR2107122A5 (fr) * 1970-09-02 1972-05-05 Costruzio Macchine Edili
DE2362670A1 (de) * 1973-12-17 1975-06-19 Gerd Wolfgang Schellenberg Kolbenpumpe, insbesondere zum foerdern von beton und anderen breiigen massen
DE2542066A1 (de) * 1975-07-31 1977-02-17 Schwing Friedrich Mehrzylinderkolbenpumpe fuer die betonfoerderung
FR2359290A1 (fr) * 1976-07-21 1978-02-17 Schwing Gmbh F Pompe a deux cylindres, en particulier pour le transfert de beton

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1278247B (de) * 1966-04-20 1968-09-19 Eugene Lee Sherrod Mehrzylinderkolbenpumpe zum Foerdern von Beton od. dgl.
DE2104191C3 (de) * 1971-01-29 1975-10-23 Torkret Gmbh, 4300 Essen Vorrichtung zur Förderung von breiigen, abbindenden Massen
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
US3982857A (en) * 1973-10-17 1976-09-28 Karl Schlecht Support means for movable connector in concrete pump arrangement
US3963385A (en) * 1975-05-05 1976-06-15 Caban Angel M Valve assembly for concrete pumps
DE2614895C3 (de) * 1976-04-07 1987-01-22 Karl Dipl.-Ing. 7000 Stuttgart Schlecht Betonpumpen-Rohrweiche
DE2716954A1 (de) * 1977-04-16 1978-10-19 Schwing Friedrich Betonpumpe
DE2903749C2 (de) * 1979-02-01 1983-11-10 Karl Dipl.-Ing. 7000 Stuttgart Schlecht Kolbenpumpe mit S-förmig gekrümmtem Schwenkrohr

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1453705A1 (de) * 1963-12-19 1969-09-18 Wennberg Olav Carl Gustav Kolbenpumpe fuer Beton oder andere Massen aehnlicher Konsistenz
US3298322A (en) * 1966-04-20 1967-01-17 Robert T Sherrod Pump for semi-fluid materials
FR2107122A5 (fr) * 1970-09-02 1972-05-05 Costruzio Macchine Edili
DE2362670A1 (de) * 1973-12-17 1975-06-19 Gerd Wolfgang Schellenberg Kolbenpumpe, insbesondere zum foerdern von beton und anderen breiigen massen
DE2542066A1 (de) * 1975-07-31 1977-02-17 Schwing Friedrich Mehrzylinderkolbenpumpe fuer die betonfoerderung
FR2359290A1 (fr) * 1976-07-21 1978-02-17 Schwing Gmbh F Pompe a deux cylindres, en particulier pour le transfert de beton

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4486156A (en) * 1981-06-09 1984-12-04 Maschinenfabrik Walter Scheele Gmbh & Co. Kg Concrete pump with buttressed distribution pipe
EP0562498A1 (fr) * 1992-03-24 1993-09-29 Schwing GmbH Pompe pour matières épaisses munie de cylindres refoulants, en particulier pompe à béton bi-cylindre
US5380174A (en) * 1992-03-24 1995-01-10 Friedrich Wilh. Schwing Gmbh Pump for thick matter having delivery cylinders, in particular a two-cylinder concrete pump

Also Published As

Publication number Publication date
HU183198B (en) 1984-04-28
JPS5823511B2 (ja) 1983-05-16
DE2933128C2 (de) 1985-09-26
PL129910B1 (en) 1984-06-30
AU538946B2 (en) 1984-09-06
AU6147880A (en) 1981-02-19
CA1156089A (fr) 1983-11-01
EP0024343B1 (fr) 1982-06-16
YU199580A (en) 1983-02-28
MX150696A (es) 1984-06-28
ZA805037B (en) 1981-09-30
JPS5629077A (en) 1981-03-23
ES8103809A1 (es) 1981-03-16
US4373875A (en) 1983-02-15
PL226212A1 (fr) 1981-04-10
SU1163803A3 (ru) 1985-06-23
DD152607A5 (de) 1981-12-02
YU41938B (en) 1988-02-29
DE2933128A1 (de) 1981-02-26
CS219288B2 (en) 1983-03-25
ATE1204T1 (de) 1982-07-15
ES494213A0 (es) 1981-03-16
BR8005186A (pt) 1981-03-04
AR220645A1 (es) 1980-11-14

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