EP1727981B1 - Dispositif et procede de commande d'une pompe a pates - Google Patents

Dispositif et procede de commande d'une pompe a pates Download PDF

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Publication number
EP1727981B1
EP1727981B1 EP05716192A EP05716192A EP1727981B1 EP 1727981 B1 EP1727981 B1 EP 1727981B1 EP 05716192 A EP05716192 A EP 05716192A EP 05716192 A EP05716192 A EP 05716192A EP 1727981 B1 EP1727981 B1 EP 1727981B1
Authority
EP
European Patent Office
Prior art keywords
reversing
pump
pipe switch
reversible pump
hydraulic
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.)
Active
Application number
EP05716192A
Other languages
German (de)
English (en)
Other versions
EP1727981A1 (fr
Inventor
Wilhelm Hofmann
Werner MÜNZENMAIER
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 EP1727981A1 publication Critical patent/EP1727981A1/fr
Application granted granted Critical
Publication of EP1727981B1 publication Critical patent/EP1727981B1/fr
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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
    • 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
    • F04B7/02—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated
    • 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
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working 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 an apparatus and a method for controlling a sludge pump with two opening on the front side openings in a material feed container, by means of at least one hydraulic reversing pump and controlled by these hydraulic drive cylinders push-pull actuated delivery cylinders, arranged within a material feed container, the inlet side alternately to the openings the delivery cylinder connectable and the other opening releasing and outlet side connected to a delivery line, hydraulically actuated diverter, wherein the drive cylinders are hydraulically connected at one end via a respective hydraulic line with a connection of the reversing and at the other end via a swing oil line to each other, and with a device for reversing the reversing pump and the diverter valve at the end of each piston stroke.
  • Another device and a method for controlling a two-cylinder slurry pump is from the document DE 38 40 892 A1 known.
  • the present invention seeks to develop an apparatus and a method for controlling a two-cylinder high-pressure pump, which allows a reliable and attenuated running Rohr originallyum facedung even with single-circuit pumps and different concrete consistencies and pressures.
  • the invention is based above all on the idea that both the pistons in the working cylinders and the diverter valve should be monitored in their sequence of movements and should be reversed under computer control in consideration of the measured sequences of motion.
  • the pump-side hydraulic connections of the drive cylinder and the reversing cylinder of the pipe switch are arranged in parallel branches of a supplied by the reversing pump hydraulic circuit, that the pipe switch has a responsive to their pivot position encoder that at least two im Distance from one another on the drive cylinders arranged on the passing piston of the drive cylinder responsive cylinder switch sensors and / or provided on the pressure curve at the high pressure output of the Reversierpumpe responsive pressure sensor are provided, and that the computerized Um Kunststoff on output signals of the position sensor on the one hand and on output signals of the cylinder shaft sensors and / or the pressure sensor, on the other hand, has an appealing control routine for a program-controlled activation of a control element for adjusting the flow rate and direction of the reversing pump
  • a further preferred embodiment of the invention provides that the control member is formed by a swash plate of the reversing and that the swash plate is actuated hydraulically or electromechanically.
  • the reversing member of the pipe switch can be configured, for example, as an electromagnetically or hydraulically controllable directional control valve.
  • the pivot position of the pipe switch is measured that monitored during the conveying process, the position of the piston in the drive cylinders and braked in an end portion of each piston stroke, the piston speed by reducing the delivery of the reversing pump delivery rate and the piston is driven to the end stop at a low speed, that the pressure supply to an actuator of the transfer tube is reversed and the delivered by the reversing pump in an increase phase flow rate without reversal is increased until the transfer tube has reached a defined intermediate position on their pivoting, that then the delivered by the reversing pump flow rate is reduced until the pipe switch reaches an end stop, and then reversed the direction of flow of the reversing and Druc kzucht to the pipe switch via a reversing device interrupted or maintained by reversing.
  • a preferred embodiment of the invention provides that in the final flow reversal of Reversierpumpe connected to the transfer tube hydraulic Um Kunststofforgan is reversed or locked.
  • the reversing pump can be briefly controlled in the increase phase during the Um Kunststoffvorgangs to maximum delivery quantity.
  • the delivery cylinders 50,50 ' are driven in a push-pull manner via hydraulic drive cylinders 5,5' and a reversible hydraulic pump 6.
  • the delivery pistons 60, 60 'of the delivery cylinders 50, 50' are connected to the pistons 8, 8 'of the drive cylinders 5, 5' via a common piston rod 9, 9 '.
  • the drive cylinders 5,5 ' are in the embodiment shown on the bottom side via the hydraulic lines 11,11' of the hydraulic circuit with the help of the reversing pump 6 pressurized oil and are at their rod side End hydraulically connected to each other via a swing oil pipe 12.
  • the direction of movement of the drive pistons 8,8 'and thus of the common piston rods 9,9' is thereby reversed, that the flow direction of the reversing pump 6 is reversed via a reversing device 18 containing a computer 14 and an adjusting mechanism 16.
  • the reversing pump 6 has a swash plate 62, which is swiveled through its zero position during the reversal, so that the conveying direction of the pressure oil in the hydraulic lines 11, 11 'is reversed.
  • the delivery rate of the reversing pump 6 can be varied by the swivel angle of the swash plate 62 at a predetermined speed of the drive motor, not shown.
  • the swivel angle of the swash plate 62 can be adjusted via a remote control device 64 with the assistance of the computer 14.
  • the reversal of the reversing pump 6 and the diverter 56 takes place as soon as the pistons 8, 8 'of the drive cylinders 5, 5' reach their end position.
  • the reversing device utilizes output signals of each of the rod-side and bottom ends of the two drive cylinders 5,5 'arranged Zylinderschaltsensoren 20,22 and 20', 22 ', which are the output side connected to the computerized reversing device 18.
  • the cylinder switch sensors respond to the drive piston 8,8 'passing by during the pumping operation and signal this event to the computer inputs 66,68.
  • a reversing signal is triggered with a time delay in the reversing device, which reverses the reversing pump 6 via the adjusting mechanism 16.
  • the reversing device 18 further includes a pressure sensor 24 which is connected to the high-pressure side 78 of the reversing pump 6 and whose output signal is evaluated in the computer 14 by means of a pressure monitoring routine.
  • the pressure monitoring routine calculates a medium high pressure in the course of a lifting operation and comprises an algorithm for determining a pressure increase occurring at the end of each delivery stroke and for converting it into a reversing signal for the reversing pump 6 and / or the diverter 56. This reversal signal is preferred in the event of failure of the Cylinder switch sensors 20,20 ', 22,22' used for reversing.
  • a special feature of the invention is that the diverter 56 has a responsive to their pivot position encoder 80, and that the computerized reversing device 18 to the output signals of the position sensor 80 and the output signals of the cylinder switching sensors 20,20 ', 22,22' and / or the pressure sensor 24 responsive control routine for a programmatic control of the swash plate 62 of the reversing pump 6 and arranged in the hydraulic branch 82 of the pipe switch 56 Um
  • the position sensor 80 is designed as an angle encoder, while the reversing member 79 is formed as an electromagnetically controllable directional control valve.
  • the pipe switch 56 can be acted upon in dependence on their angular position with hydraulic oil, so that a rapid, but still steamed recirculation takes place.
  • a delay line x is first waited depending on the flow rate or stroke time x until the swash plate 62 of the reversing pump 6 is driven.
  • the delay results in a ramp R in the flow rate, which leads to a deceleration of the piston 8,8 '.
  • the piston is at the cylinder bottom.
  • the swash plate 62 pivots again fully in a pushover phase P, so that a pressure is built up in the previous feed direction that sets the diverter 56 in motion from its starting position A.
  • the pipe switch exceeds a predetermined intermediate position Z, which is signaled by the position sensor 80, the swash plate 62 is swung back again.
  • the method described is particularly advantageous for single-circuit two-cylinder thick matter pumps, in which the pump-side hydraulic connections of the drive cylinder and the reversing cylinder of the pipe switch are arranged in parallel branches of a hydraulic circuit fed by the reversing pump.
  • the invention relates to an apparatus and a method for controlling a two-cylinder slurry pump, whose delivery pistons are actuated in push-pull mode by means of a hydraulic reversing pump 6 and via these actuated hydraulic drive cylinders.
  • the delivery cylinder 50,50 ' are connected to a delivery line 58 via a diverter 56 at each pressure stroke. At the end of each delivery stroke a reversing process of the reversing pump 6 and the diverter 56 is triggered.
  • the pipe switch has a responsive to its pivot position encoder.
  • the computer-aided reversing device has an output signals of the position sensor on the one hand and output signals of the cylinder switching sensors and / or the pressure sensor on the other hand responsive control routine for a program-controlled control of a control member for adjusting the flow rate and direction of the reversing pump and a arranged in the hydraulic branch of the pipe switch reversing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Claims (8)

  1. Dispositif de commande d'une pompe pour substances épaisses comprenant deux cylindres convoyeurs (50, 50') qui débouchent, par des orifices frontaux (52), dans un réceptacle (54) de délivrance de matière et peuvent être actionnés, en opposition symétrique, à l'aide d'au moins une pompe hydraulique réversible (6) et de vérins hydrauliques d'entraînement (5, 5') activés par cette dernière ; un sélecteur tubulaire (56) qui peut être actionné hydrauliquement, se trouve à l'intérieur dudit réceptacle (54) de délivrance de matière, peut être raccordé en alternance aux orifices (52) des cylindres convoyeurs (50, 50'), côté entrée, en dégageant l'autre orifice considéré, et est relié côté sortie à un conduit d'acheminement (58), sachant que les vérins d'entraînement (5, 5') sont reliés par l'une de leurs extrémités, au moyen d'un conduit hydraulique respectif (11, 11'), à un raccord de la pompe réversible (6), et sont reliés hydrauliquement l'un à l'autre par leur autre extrémité, au moyen d'un conduit (12) à huile instable ; et un dispositif (18) d'inversion de commande de la pompe réversible (6) et du sélecteur tubulaire (56) à l'achèvement de chaque course des pistons, caractérisé par le fait que les raccords hydrauliques, situés côté pompe, des vérins d'entraînement et du sélecteur tubulaire actionné hydrauliquement, se trouvent dans des branches parallèles d'un circuit hydraulique alimenté par la pompe réversible ; par le fait que ledit sélecteur tubulaire comporte un indicateur de positions (80) réagissant à sa position prise par pivotement ; par la présence d'au moins deux capteurs de commutation placés à distance l'un de l'autre sur les vérins de travail et répondant au passage des pistons des vérins d'entraînement ; et/ou d'une sonde de pression répondant à l'allure de la pression à la sortie haute pression de la pompe réversible ; et par le fait que le dispositif d'inversion de commande, assisté par ordinateur, présente un programme de commande réagissant, d'une part, à des signaux de sortie de l'indicateur de positions et, d'autre part, à des signaux de sortie des capteurs de commutation associés aux vérins et/ou de la sonde de pression, en vue de l'activation programmée d'un organe de commande conçu pour régler la quantité et la direction du débit de la pompe réversible, ainsi que d'un organe d'inversion de commande logé dans la branche hydraulique du sélecteur tubulaire.
  2. Dispositif selon la revendication 1, caractérisé par le fait que l'indicateur de positions du sélecteur tubulaire est réalisé sous la forme d'un capteur angulaire.
  3. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que l'organe de commande est matérialisé par un disque oblique de la pompe réversible.
  4. Dispositif selon la revendication 3, caractérisé par le fait que le disque oblique peut être réglé hydrauliquement ou électromécaniquement.
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé par le fait que l'organe d'inversion de commande est réalisé sous la forme d'un distributeur activable électromagnétiquement ou mécaniquement.
  6. Procédé de commande d'une pompe pour substances épaisses comprenant deux cylindres convoyeurs (50, 50') qui débouchent, par des orifices frontaux (52), dans un réceptacle (54) de délivrance de matière et peuvent être actionnés, en opposition symétrique, à l'aide d'au moins une pompe hydraulique réversible (6) et de vérins hydrauliques d'entraînement (5, 5') activés par cette dernière ; et un sélecteur tubulaire (56) qui peut être actionné hydrauliquement, se trouve à l'intérieur dudit réceptacle (54) de délivrance de matière, peut être raccordé en alternance aux orifices (52) des cylindres convoyeurs (50, 50'), côté entrée, en dégageant l'autre orifice considéré, et peut être relié côté sortie à un conduit d'acheminement (58), un processus d'inversion de commande de la pompe réversible (6) et du sélecteur tubulaire (56) étant respectivement déclenché à l'achèvement d'une course de refoulement dans les cylindres convoyeurs (50, 50'), caractérisé par le fait que la position, que le sélecteur tubulaire a prise par pivotement, est mesurée au cours du processus d'inversion de commande ; par le fait que, lors du processus de refoulement, la position des pistons dans les vérins d'entraînement est surveillée, la vitesse des pistons est freinée sur un tronçon extrême de chaque course desdits pistons, par réduction de la quantité refoulée délivrée par la pompe réversible, puis le piston est amené en butée extrême ; par le fait que, les pistons étant en butée, la commande de la délivrance d'une pression à un organe d'actionnement du sélecteur tubulaire est inversée et la quantité refoulée, délivrée par la pompe réversible durant une phase d'accroissement, est augmentée sans inversion directionnelle jusqu'à ce que ledit sélecteur tubulaire ait atteint une position intermédiaire bien définie sur son trajet de pivotement ; par le fait que, dans l'enchaînement, la quantité refoulée délivrée par la pompe réversible est restaurée jusqu'à ce que le sélecteur tubulaire parvienne à une butée extrême ; et par le fait que la direction de circulation de la pompe réversible est inversée, puis la délivrance d'une pression au sélecteur tubulaire est interrompue par l'intermédiaire d'un organe d'inversion de commande, ou bien est maintenue par inversion de commande.
  7. Procédé selon la revendication 6, caractérisé par le fait qu'un organe hydraulique d'inversion de commande, relié au sélecteur tubulaire, est soumis à une inversion de commande ou à un blocage lors de l'inversion définitive de la circulation de la pompe réversible.
  8. Procédé selon la revendication 6 ou 7, caractérisé par le fait que, durant la phase d'accroissement au cours du processus d'inversion de commande, la pompe réversible est brièvement commandée sur une quantité refoulée maximale.
EP05716192A 2004-03-26 2005-03-18 Dispositif et procede de commande d'une pompe a pates Active EP1727981B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004015419A DE102004015419A1 (de) 2004-03-26 2004-03-26 Vorrichtung und Verfahren zur Steuerung einer Dickstoffpumpe
PCT/EP2005/002896 WO2005093253A1 (fr) 2004-03-26 2005-03-18 Dispositif et procede de commande d'une pompe a pates

Publications (2)

Publication Number Publication Date
EP1727981A1 EP1727981A1 (fr) 2006-12-06
EP1727981B1 true EP1727981B1 (fr) 2007-07-18

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Application Number Title Priority Date Filing Date
EP05716192A Active EP1727981B1 (fr) 2004-03-26 2005-03-18 Dispositif et procede de commande d'une pompe a pates

Country Status (11)

Country Link
US (1) US7611332B2 (fr)
EP (1) EP1727981B1 (fr)
JP (1) JP4839306B2 (fr)
KR (1) KR101148600B1 (fr)
CN (1) CN100416095C (fr)
AT (1) ATE367524T1 (fr)
DE (2) DE102004015419A1 (fr)
EA (1) EA007293B1 (fr)
ES (1) ES2290897T3 (fr)
UA (1) UA81498C2 (fr)
WO (1) WO2005093253A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005024174A1 (de) * 2005-05-23 2006-12-07 Schwing, Friedrich, Dipl.-Ing. Verfahren zum Steuern einer Pumpvorrichtung zur Förderung breiiger Massen sowie Steuerung einer Pumpvorrichtung zur Förderung breiiger Massen
JP4322282B2 (ja) * 2007-01-25 2009-08-26 中外炉工業株式会社 液体供給装置
IT1393038B1 (it) * 2009-02-09 2012-04-11 Imer Int Spa Pompa per clacestruzzo
BR112013015754A2 (pt) * 2011-09-09 2018-11-06 Hunan Zoomlion Special Vehicle método, aparelho e sistema para controlar a comutação de direção de bombeamento para uso em aparelho de bombeamento
DE102011083874A1 (de) * 2011-09-30 2013-04-04 Putzmeister Engineering Gmbh Hydrauliksystem mit Saug-Rücklauffilter
CN102979692B (zh) * 2012-05-22 2014-08-06 北汽福田汽车股份有限公司 串联油缸装置及其控制方法和泵送装置
DE102012209142A1 (de) * 2012-05-31 2013-12-05 Putzmeister Engineering Gmbh Hydrauliksystem
DE102012211367A1 (de) * 2012-06-29 2014-01-02 Putzmeister Engineering Gmbh Fahrbare Betonpumpe sowie Verfahren für deren Einsatz im Transportzustand
DE102012216242A1 (de) * 2012-09-13 2014-03-13 Putzmeister Engineering Gmbh Vorrichtung zur Antriebssteuerung einer Zweizylinder-Dickstoffpumpe
US10648462B2 (en) 2013-10-29 2020-05-12 Thermtech Holdings As System for feeding and pumping of less pumpable material in a conduit line
CN103850907A (zh) * 2014-03-12 2014-06-11 中国石油大学(华东) 双柱塞式高压磨料注入装置
US9926925B2 (en) * 2014-09-04 2018-03-27 Schwing Bioset, Inc. Sludge flow measuring system
DE102015103180A1 (de) * 2015-03-05 2016-09-08 Schwing Gmbh Zweizylinder-Kolbenpumpe
CN104930153A (zh) * 2015-06-26 2015-09-23 黄泽明 液控变速装置、变速方法及包含该变速装置的液压泥浆泵
IT201600079032A1 (it) * 2016-07-27 2018-01-27 Euromacchine Commerciale S R L Sistema di pompaggio con una sola pompa
DE102018208263A1 (de) * 2018-05-25 2019-11-28 Putzmeister Engineering Gmbh Vorrichtung zur Förderung von Dickstoff
DE102019120825A1 (de) * 2019-08-01 2021-02-04 Putzmeister Engineering Gmbh Umschalteinrichtung für eine Betonpumpe
DE102019212631A1 (de) * 2019-08-22 2021-02-25 Putzmeister Engineering Gmbh Verfahren zur Zustandsüberwachung einer Vorrichtung und Vorrichtung
CN110803504B (zh) * 2019-10-21 2021-09-10 苏师大半导体材料与设备研究院(邳州)有限公司 一种双缸建筑材料推送机构
DE102021202325A1 (de) * 2021-03-10 2022-09-15 Putzmeister Engineering Gmbh Verfahren zum Betreiben einer Bau- und/oder Dickstoffpumpe zum Fördern von Bau- und/oder Dickstoff und Bau- und/oder Dickstoffpumpe zum Fördern von Bau- und/oder Dickstoff
CN115492391B (zh) * 2021-06-18 2024-05-24 润弘精密工程事业股份有限公司 混凝土泵送输送装置和其方法
CN113550881B (zh) * 2021-07-23 2022-05-27 绍兴洋海建设有限公司 一种自动调节淤泥含水率的防堵塞泥浆泵及其清淤方法

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3365931D1 (en) * 1982-01-22 1986-10-16 Thomsen A F D Sales Service Slurry pump
US5106272A (en) * 1990-10-10 1992-04-21 Schwing America, Inc. Sludge flow measuring system
US5388965A (en) * 1990-10-10 1995-02-14 Friedrich Wilhelm Schwing Gmbh Sludge pump with monitoring system
US4666374A (en) * 1983-01-11 1987-05-19 Cooper Industries, Inc. Methods and apparatus for producing uniform discharge and suction flow rates
JPH0633767B2 (ja) * 1983-07-04 1994-05-02 三菱重工業株式会社 スラリ−ポンプ
FR2589004B1 (fr) * 1985-10-22 1987-11-20 Thomson Csf Dispositif a transfert de charges et procede de realisation d'un tel dispositif
JPH063195Y2 (ja) * 1985-12-18 1994-01-26 三菱重工業株式会社 コンクリ−トポンプ油圧切換装置
DE3814824A1 (de) * 1988-05-02 1989-11-16 Putzmeister Maschf Steuerungsanordnung fuer eine zweizylinder-dickstoffpumpe
JPH0218662A (ja) * 1988-07-06 1990-01-22 Nec Off Syst Ltd 文書作成機
JP2511471Y2 (ja) * 1988-07-15 1996-09-25 石川島建機株式会社 コンクリ―トポンプの切換装置
DE3833845A1 (de) * 1988-10-05 1990-04-12 Putzmeister Maschf Dickstoffpumpe mit nachgeschaltetem absperrorgan
DE3840892A1 (de) * 1988-12-05 1990-06-07 Putzmeister Maschf Verfahren und vorrichtung zur steuerung einer zweizylinder-dickstoffpumpe
DE3910120A1 (de) * 1989-03-29 1990-10-04 Putzmeister Maschf Steuerungsanordnung fuer eine zweizylinder-dickstoffpumpe
JPH0479974A (ja) * 1990-07-23 1992-03-13 Sophia Co Ltd パチンコ機
JPH0736136Y2 (ja) * 1990-11-21 1995-08-16 石川島建機株式会社 高粘性流体ポンプの運転制御装置
DE4127277A1 (de) * 1991-08-17 1993-02-18 Putzmeister Maschf Hydraulische steuerungseinrichtung fuer eine dickstoffpumpe
DE4208754A1 (de) * 1992-03-19 1993-09-23 Schwing Gmbh F Dickstoffpumpe mit foerderzylindern, insbesondere zweizylinderbetonpumpe
US5332366A (en) * 1993-01-22 1994-07-26 Schwing America, Inc. Concrete pump monitoring system
US5330327A (en) 1993-04-27 1994-07-19 Schwing America, Inc. Transfer tube material flow management
DE19542258A1 (de) 1995-11-13 1997-05-15 Putzmeister Maschf Verfahren und Vorrichtung zur Steuerung einer Zweizylinder-Dickstoffpumpe
JP4219464B2 (ja) * 1999-02-09 2009-02-04 古河機械金属株式会社 ピストンポンプの切換衝撃低減装置
DE10036202A1 (de) * 2000-07-24 2002-02-07 Putzmeister Ag Dickstoffpumpe
DE10150467A1 (de) * 2001-10-16 2003-04-17 Putzmeister Ag Dickstoffpumpe mit Fördermengenregelung

Also Published As

Publication number Publication date
EP1727981A1 (fr) 2006-12-06
EA007293B1 (ru) 2006-08-25
CN100416095C (zh) 2008-09-03
ATE367524T1 (de) 2007-08-15
KR101148600B1 (ko) 2012-05-25
JP2007530855A (ja) 2007-11-01
ES2290897T3 (es) 2008-02-16
WO2005093253A1 (fr) 2005-10-06
CN1788159A (zh) 2006-06-14
DE502005001073D1 (de) 2007-08-30
DE102004015419A1 (de) 2005-10-13
EA200501844A1 (ru) 2006-04-28
US20060245943A1 (en) 2006-11-02
KR20060127383A (ko) 2006-12-12
US7611332B2 (en) 2009-11-03
JP4839306B2 (ja) 2011-12-21
UA81498C2 (en) 2008-01-10

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