EP1952033B1 - Betonpumpenfahrzeug - Google Patents

Betonpumpenfahrzeug Download PDF

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Publication number
EP1952033B1
EP1952033B1 EP06806573A EP06806573A EP1952033B1 EP 1952033 B1 EP1952033 B1 EP 1952033B1 EP 06806573 A EP06806573 A EP 06806573A EP 06806573 A EP06806573 A EP 06806573A EP 1952033 B1 EP1952033 B1 EP 1952033B1
Authority
EP
European Patent Office
Prior art keywords
concrete pump
vehicle according
bottom region
pump vehicle
hydraulic cylinder
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
EP06806573A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1952033A1 (de
Inventor
Johann Schabelreiter
Herbert Marquardt
Horst Joebstl
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.)
Schwing GmbH
Friedrich Wilhelm Schwing GmbH
Original Assignee
Schwing GmbH
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
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Application filed by Schwing GmbH, Friedrich Wilhelm Schwing GmbH filed Critical Schwing GmbH
Publication of EP1952033A1 publication Critical patent/EP1952033A1/de
Application granted granted Critical
Publication of EP1952033B1 publication Critical patent/EP1952033B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1433—End caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type

Definitions

  • the present invention relates to a concrete pump vehicle with a hydraulic cylinder for multi-part mast construction of at least two articulated mast arms, one of which is pivotable by the hydraulic cylinder relative to the other Mastarm, especially for concrete pumps, cranes, lifts and the like, with a closed in a bottom region cylindrical container for receiving a piston.
  • the present invention relates to a device with mast construction with at least two articulated mast arms, one of which is pivotable by a hydraulic cylinder relative to the other mast arm, in particular for concrete pumps, cranes, lifting platforms and the like.
  • So-called Mast excessiveten of a plurality of each pairwise articulated mast arms are used for example in the construction industry to promote flowable materials, such as concrete, from a central delivery point to quasi arbitrary processing locations within the reach of the mast construction.
  • two mast arms of the mast assembly are each hingedly connected to each other and against each other by a hydraulic cylinder pivoted.
  • the working machine hydraulic cylinder is in terms of statics a pressure vessel of variable geometry for delivery and absorption of forces.
  • the housing of the hydraulic cylinder hereinafter also referred to as a cylinder container, formed from a (cylinder) tube with a welded bottom piece.
  • the bottom piece is usually made of a solid cylinder with a transverse bore for a bearing pin, which is provided for securing the hydraulic cylinder to one of the mast arms.
  • the bottom piece may be formed in the form of a disc with welded cross tube as a bolt bearing.
  • the corresponding pin eye is narrow and equipped with a spherical bearing, or it reaches the width of the container or projects laterally beyond this.
  • the bottom piece As a carefully machined disc most highly welded to the cylinder tube.
  • the bolt bearing is also connected in a complex manner with the bottom disc.
  • the formation of the bottom piece as a steel casting improves the stability properties of the solution described above.
  • Concrete conveyors with generic hydraulic cylinders that are used in concrete pump vehicles for example, from DE 198 37 900 A1 known.
  • the invention is based on the object of avoiding the above-mentioned disadvantages to provide a hydraulic cylinder, which can be produced due to an improved power flow with reduced material costs and thus reduced overall weight at the same time at least equivalent or improved stability.
  • the invention has for its object to provide a device with mast structure, which is characterized over known device of this kind, in particular by a lower total weight and improved movement and stability properties.
  • the object is achieved in that the device has at least one hydraulic cylinder according to the invention for pivoting the mast arms.
  • the basic idea of the approach according to the invention is to replace the conventionally regularly designed in the form of a disk bottom piece of the hydraulic cylinder by a curved shell, in particular a hemispherical shape represents the optimal shape from a static point of view and correspondingly requires the lowest wall thickness with maximum weight reduction.
  • a preferred development of the hydraulic cylinder according to the invention provides that the bottom region is concave with respect to the cylinder container; i.e. arched outwards, is formed, resulting in a particularly favorable flow of power.
  • the bottom area is convex, ie. curved inward, is formed.
  • the bottom portion has a uniform curvature in section, wherein the bottom portion of a particularly preferred embodiment of the hydraulic cylinder according to the invention as a ball portion, in particular as a hemispherical shell is formed ,
  • a further embodiment of the hydraulic cylinder according to the invention provides that the bottom region of the cylinder container is designed as a paraboloid.
  • the bottom portion is formed in section symmetrically with respect to a longitudinal axis of the cylinder container.
  • a bearing eye in the form of an eye part, i. to provide a component with at least one such bearing eye.
  • the bottom portion on its inside as a spherical section, in particular as a hemisphere, and at its Outside is formed as a paraboloid, resulting in the desired increase in the wall thickness, especially in the apex region of the curvature, so that preferably there a bearing eye (eye part) can be arranged.
  • the eye part in the form of a narrow rib with spherical plain bearings, whereby a maximum mobility of the hydraulic cylinder is given with respect to the boom arms.
  • the cylinder tube can be extended to the discharge of reaction or bearing forces on the curved floor area out, in the thus gained space, the bearing eyes for the bearing pin can be used to attach the hydraulic cylinder to one of the mast arms.
  • the eye portion is formed as a cylindrical container beyond its bottom portion extending annular part having in its mantle two oppositely arranged eye openings for receiving at least one fastening bolt. According to the invention, it is accordingly possible to use either a split bolt with a multi-section connection or a continuous bolt with a two-section connection.
  • the total weight of the hydraulic cylinder according to the invention is significantly reduced compared to conventional cylinder designs, a fastening bolt guided outside the pressure range of the hydraulic cylinder requires a relatively large dead length of the cylinder in its bottom area.
  • the bolt eye can also be installed in the pressure range of the hydraulic cylinder and penetrate it.
  • a corresponding preferred development of the hydraulic cylinder according to the invention therefore provides that the eye part is designed as a pin bearing tube passing through the cylinder container.
  • the pin bearing tube is arranged within a volume defined by the bottom region.
  • the bolt bearing tube covers the bottom region of the cylinder container, i. touched a wall of the cylinder container.
  • the cylinder container can be integrally formed in its bottom region as a casting with improved stability properties.
  • the bolt bearing tube is also possible to arrange the bolt bearing tube at a distance from the bottom region of the cylinder container.
  • Such a construction has the advantage that the pin bearing tube even after production of the cylinder container by bilateral Opening the latter can be used as a welded construction subsequently in this.
  • the bottom portion and the pin bearing tube may be formed together in one piece, in particular as a casting.
  • the connection of this casting to a cylinder tube to form a cylinder container is effected by an annular weld.
  • the seam preparation required for this also includes the formation of the required bath fuse of the weld seam.
  • the Fig. 1 shows a device 1 according to the invention with mast assembly 2 in the form of a self-propelled concrete pump.
  • the device 1 has a truck chassis 3 with a cab 4 and a chassis carrier 5, on which a slewing gear 6 for the mast assembly 2 is arranged.
  • the mast assembly 2 itself has a number of articulated mast arms, which will be described below with reference to Fig. 2 is explained.
  • a concrete pump not explicitly shown, is furthermore constructed, whose hopper 7, via which the concrete pump is acted upon by a mixer, not shown, is arranged at the rear of the vehicle.
  • a conveyor not shown, for the concrete conveyed by the concrete pump is further provided, so that the concrete along the mast structure to any location within the range of unfolded mast assembly 2 can be conveyed.
  • the Fig. 2 shows a schematic detail view of the mast assembly 2 Fig. 1 in its unfolded state.
  • the mast assembly 2 has at least two mast arms 9, 10 connected to one another via a joint 8, one of which 10 can be pivoted by a hydraulic cylinder 11 relative to the other mast arm 9.
  • the hydraulic cylinder 11 has, in a manner known per se, a substantially tubular cylindrical container 12, in which a piston 13 is slidably received.
  • the cylinder container 12 of the hydraulic cylinder 11 is articulated in a first hinge point 14 on a bearing part 15 of the first mast arm 9, while the piston 13 of the hydraulic cylinder 11 is fastened via a piston rod 16 at a hinge point 17 of the second mast arm 10.
  • the Fig. 3 shows a partial sectional view of a hydraulic cylinder 11 according to the present invention. Shown is the cylinder container 12 of a hydraulic cylinder 11, according to the embodiment shown in its bottom portion 18 is closed on one side, wherein the bottom portion 18 in the manner of a hemisphere with respect to the interior 19 of the cylinder container 12 concave, that is curved outward, is formed.
  • the cylinder container 12 is formed in two pieces from a cylinder tube 20 and a hemispherical bottom piece 21, which are connected via a weld 22.
  • the cylinder container 12 may also be formed in one piece, in particular as a cast part.
  • the cylinder container 12 is in turn formed from a cylinder tube 20 and a welded bottom piece 21, however, the bottom piece 21 is arranged such that it convex with respect to the interior 19 of the cylinder container 12, ie inwardly curved bottom portion 18th forms.
  • the cylinder container 12 of the hydraulic cylinder 11 according to the invention is articulated to a first mast arm 9 of the Mastarman für extract 2.
  • the Fig. 5 shows a corresponding inventive development of the cylinder container 12 according to the Fig. 3 in that the cylinder container 12 is extended beyond the curved bottom portion 18 by means of an annular eye portion 23.
  • the eye portion 23 has in its mantle diametrically opposite two eye openings 24, 24 ', through which a respective short fastening bolt 25 or 25' is guided, which is used for articulated fastening of the hydraulic cylinder 11 to the mast arm 9 provided on the mast arm pairs of Bearing elements 15, 15 'cooperates.
  • the annular eye part 23 is connected to the cylinder container 12 by welding (weld 22).
  • the Fig. 6 shows a corresponding further development of the hydraulic cylinder 11 according to the invention according to the Fig. 4 .
  • the bottom piece 21 of the cylinder container 12 is downwards, ie extended at its open end and thus assumes the function of the annular eye portion 23 according to the Fig. 5 .
  • the bottom piece 21 diametrically opposite eye openings 24, 24 ', in each of which a short fastening bolt 25, 25' is introduced.
  • the fastening bolts 25, 25 ' in turn cooperate with pairs of bearing elements 15, 15', which according to the Fig. 2 are provided on the mast arm 9.
  • the Fig. 7 shows alternative embodiments of the above with reference to the FIGS. 5 and 6
  • an evolution of the subject matter of Fig. 5 shown in which instead of two short fastening bolts only a continuous fastening bolt 25 is present, which is guided in a continuous, between the eye openings 24, 24 'extending pin bearing tube 26 in the manner of a pin housing.
  • the right part of the Fig. 7 shows a corresponding configuration in a hydraulic cylinder 11 according to the FIGS. 4 or 6, ie a hydraulic cylinder with a convexly curved bottom area 18.
  • the Fig. 8 shows a further embodiment of the hydraulic cylinder 11 according to the invention, in which the eye part not as a connecting ring according to the FIGS. 5 to 7 , but as a narrow rib 27 is formed.
  • a narrow, rib-shaped eye portion 27 is arranged in a vertex of the curvature of the curved bottom portion 18 of the cylinder container 12, preferably welded.
  • the eye portion 27 has a perpendicular to a longitudinal axis L of the cylinder container 12 oriented opening 28, in which a hinge bearing 29 is provided.
  • the joint bearing 29 has a continuous fastening bolt 25, which in turn with suitable bearing elements 15, 15 'on the first mast arm 9 of the multi-part mast assembly 2 (FIGS. Fig. 1, 2 ) cooperates.
  • the cylinder container 12 in its bottom portion 18 on its inner side 30, ie the interior 19 of the cylinder container 12 facing a uniform hemispherical curvature and on its outer side 31, ie the interior 19 of the cylinder container 12 facing away, an uneven, especially parabolic curvature.
  • FIGS. 9 to 11 Embodiments of the hydraulic cylinder 11 according to the invention, in which the fastening bolt 25 and the pin bearing tube 26 (see. Fig. 7 ) penetrate the interior 19 of the cylinder container 12.
  • FIGS. 9a, b show a cylindrical container 12 of a hydraulic cylinder 11 according to the invention with outwardly curved hemispherical bottom portion 18 (see. Fig. 3 ), in which a bolt bearing tube 26 for a fastening bolt, not shown, penetrates the interior 19 of the cylinder container 12 in a region which is defined (delimited) by the curved bottom region 18 of the cylinder container 12.
  • the cylindrical container 12 and the pin bearing tube 26 may be formed integrally together (eg, as a cast part).
  • a two-piece embodiment of the cylinder container 12 according to the Fig. 3 possible, with only the bottom piece 21 ( Fig. 3 ) and the bolt bearing tube 26 are integrally formed as a casting.
  • the cylinder container 12 or its bottom piece 21 (FIG. Fig. 3 ) is opened on both sides, so that subsequently the pin bearing tube 26 as an independent component by the cylinder container 12 feasible and can be welded thereto.
  • the bolt bearing tube 26 is arranged at a minimum distance D from the inner wall 30 of the cylinder container 12 in the bottom portion 18.
  • the pin bearing tube 26 has a circular cross-section, such as, for example Fig. 9b
  • the invention is not defined therein. Rather, the pin bearing tube 26 may also have a non-circular, approximately rectangular, square, triangular or elliptical cross section.
  • the center of the bolt bearing tube 26 is disposed on the longitudinal axis L of the cylinder container, other configurations are possible.
  • the center of the bolt bearing tube can be laterally offset by a distance to the longitudinal axis L.
  • FIGS. 10a, b an embodiment of the hydraulic cylinder 11 according to the invention, in which the pin bearing tube 26, the inner wall 30 of the cylinder container 12 is tangent in the bottom portion 18.
  • the bottom piece 21 ( Fig. 3 ) of the cylinder container 12 and the pin bearing tube 26 together in one piece (eg, as a cast part).
  • the cylindrical container 12 is composed of a cylinder tube 20 and a bottom piece 21, preferably welded (weld 22), wherein the bottom piece 21 of the cylinder container 12 towards its open end in a region 31 for stability reasons, a thickening and in a wider region 32 on his Inside 27 has a recess.
  • the pin bearing tube 26 is upward trapezoidal, ie extended in the direction of the cylinder interior 19 in section, so that a stop 33 for the inside of the cylinder container 12 movable piston 13 (FIGS. Fig. 2 ), wherein the stopper 33 is preferably located at the level of the recess 32.
  • a casting contour of the bottom piece 21 before machining to form the thickening 31 or the recess 32 is additionally shown.
  • FIGS. 12a-f show a further embodiment of a bottom piece 21 of a hydraulic cylinder 11 according to the invention (see. Fig. 3 ) in detail based on a number of diverse (sectional) views.
  • Fig. 12a is in the right part of the figure again a casting contour of the bottom piece 21 of a hydraulic cylinder according to the invention shown in section.
  • Fig. 11 appropriate Design of the bottom piece 21 with attached cylinder tube 20 after machining the casting contour (see. Fig. 11 ).
  • the bottom piece 21 in the apex region of its curvature on an inclined flattening 34, to which - in the radial direction with respect to the longitudinal axis L of the bottom piece 21 offset - a projection 35 with a bore 36 connects.
  • the projection 35 serves as a specially machined flat surface for receiving a connectable to the bore 36 hydraulic valve
  • the Fig. 12b shows a section along the line AA (see. Fig. 12d ).
  • This illustration shows, in particular in a region 37 of the arched bottom region 18, a radius of curvature R of the arched bottom region 18 decreasing from the outside in the direction of the longitudinal axis L of the bottom piece 21.
  • FIGS. 12a, b show a side view and a plan view of the bottom piece 21 according to the FIGS. 12a, b , where the Fig. 12d in particular, an approximately parallel to the circular in plan view outer contour of the bottom piece 21 extending curvature formed as a two-piece projection stop 33 is shown (see also Fig. 12e ).
  • FIGS. 12e and 12f a sectional view along the line BB in Fig. 12d or a view of the bottom piece 21 viewed from below (arrow X in FIG Fig. 12e ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Reciprocating Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP06806573A 2005-11-17 2006-10-26 Betonpumpenfahrzeug Active EP1952033B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0187405A AT502871B1 (de) 2005-11-17 2005-11-17 Hydraulikzylinder
PCT/EP2006/010350 WO2007057100A1 (de) 2005-11-17 2006-10-26 Hydraulikzylinder

Publications (2)

Publication Number Publication Date
EP1952033A1 EP1952033A1 (de) 2008-08-06
EP1952033B1 true EP1952033B1 (de) 2012-08-01

Family

ID=37617997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06806573A Active EP1952033B1 (de) 2005-11-17 2006-10-26 Betonpumpenfahrzeug

Country Status (10)

Country Link
US (1) US20090090687A1 (pt)
EP (1) EP1952033B1 (pt)
KR (1) KR101339853B1 (pt)
CN (2) CN101313156B (pt)
AT (1) AT502871B1 (pt)
AU (1) AU2006314881B2 (pt)
BR (1) BRPI0619397A2 (pt)
CA (1) CA2629973C (pt)
ES (1) ES2310160T3 (pt)
WO (1) WO2007057100A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012215090A1 (de) * 2012-08-24 2014-02-27 Putzmeister Engineering Gmbh Mastarm für einen Betonverteilermast
CN103057927B (zh) * 2013-01-15 2015-09-09 湖南晨光机器制造有限公司 一种运砂自卸舶用的液压折叠式输送臂

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191101284A (en) * 1911-01-18 1911-06-15 Lewis Robert Doran Improvements in and connected with Hydraulic Lifting Jacks.
US2451089A (en) * 1945-08-20 1948-10-12 Casimir A Miketta Hydraulic cylinder construction
US2655872A (en) * 1948-11-09 1953-10-20 Fairmont Railway Motors Inc Vehicle structure
GB1204479A (en) * 1966-11-14 1970-09-09 Winget Ltd Fluid operated ram assemblies
DE1625989A1 (de) * 1967-08-31 1971-01-21 Messerschmitt Boelkow Blohm Doppeltwirkendes,redundantes Hydraulikzylindersystem,vorzugsweise fuer Luft- und Raumfahrzeuge
AT332101B (de) * 1969-06-10 1976-09-10 Schwing Friedrich Vorrichtung zum verteilen von beton
JPS5313072A (en) * 1976-07-20 1978-02-06 Tokico Ltd Method of forming gas chamber of gas enclosure type closed cylinder
AT347750B (de) * 1976-11-11 1979-01-10 Vmw Ranshofen Berndorf Ag Druckluft- oder hydraulikzylinder
US4211150A (en) * 1977-10-26 1980-07-08 Abex Corporation Air cylinder
JPS5569339A (en) * 1978-11-20 1980-05-24 Tokico Ltd Gas sealed cylinder device
JPS6035812Y2 (ja) * 1979-11-09 1985-10-24 トキコ株式会社 ガススプリング
JPS5861310A (ja) * 1981-10-02 1983-04-12 Kyokuto Kaihatsu Kogyo Co Ltd 流体圧シリンダ
JPH0249418B2 (ja) * 1983-02-10 1990-10-30 Nhk Spring Co Ltd Yuatsukanshoki
JPS60169443U (ja) * 1984-04-20 1985-11-09 トキコ株式会社 ガス封入式油圧緩衝器
US4685384A (en) * 1984-08-20 1987-08-11 Pneumo Corporation Fluid actuator including composite cylinder assembly
US4729538A (en) * 1986-11-10 1988-03-08 Bergacker John W Apparatus for hydraulically actuating a vehicle seat
FR2632025A1 (fr) * 1988-05-30 1989-12-01 Hors Piste Plongee Sarl Nouveau verin hydraulique a performances elevees
US4878419A (en) * 1988-06-27 1989-11-07 Allied-Signal Inc. Lightweight hydraulic actuator
JPH0949508A (ja) * 1995-08-08 1997-02-18 Shimadzu Corp 液圧式シリンダ装置
DE29910970U1 (de) * 1999-06-23 1999-09-02 Festo AG & Co, 73734 Esslingen Fluidbetätigter Arbeitszylinder
DE10064365B4 (de) * 2000-12-22 2010-12-16 Schwing Gmbh Hydraulik-Zylinder
DE10106427B4 (de) * 2001-02-12 2006-06-22 Schwing Gmbh Verteilervorrichtung für Dickstoffe, insbesondere für Beton
US6786233B1 (en) * 2001-02-23 2004-09-07 Schwing America, Inc. Boom utilizing composite material construction
DE10112086A1 (de) * 2001-03-12 2002-09-26 Putzmeister Ag Verteilervorrichtung für Dickstoffe

Also Published As

Publication number Publication date
ES2310160T3 (es) 2012-11-22
AT502871B1 (de) 2008-06-15
CN101313156B (zh) 2014-09-03
CN101313156A (zh) 2008-11-26
EP1952033A1 (de) 2008-08-06
AU2006314881B2 (en) 2011-07-14
CA2629973A1 (en) 2007-05-24
ES2310160T1 (es) 2009-01-01
CN104314910B (zh) 2017-09-19
CN104314910A (zh) 2015-01-28
BRPI0619397A2 (pt) 2011-10-04
AU2006314881A1 (en) 2007-05-24
AT502871A1 (de) 2007-06-15
KR20080082648A (ko) 2008-09-11
US20090090687A1 (en) 2009-04-09
KR101339853B1 (ko) 2013-12-10
CA2629973C (en) 2011-04-19
WO2007057100A1 (de) 2007-05-24

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