EP1002172A1 - Bras d'alimentation en beton presentant des parties articulees - Google Patents

Bras d'alimentation en beton presentant des parties articulees

Info

Publication number
EP1002172A1
EP1002172A1 EP98941399A EP98941399A EP1002172A1 EP 1002172 A1 EP1002172 A1 EP 1002172A1 EP 98941399 A EP98941399 A EP 98941399A EP 98941399 A EP98941399 A EP 98941399A EP 1002172 A1 EP1002172 A1 EP 1002172A1
Authority
EP
European Patent Office
Prior art keywords
arm
sections
actuator
section
hydraulic motor
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
EP98941399A
Other languages
German (de)
English (en)
Other versions
EP1002172B1 (fr
Inventor
Mauro Cortellini
Giorgio Moretti
Walter Scuratti
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.)
CIFA SpA
Original Assignee
CIFA SpA
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 CIFA SpA filed Critical CIFA SpA
Publication of EP1002172A1 publication Critical patent/EP1002172A1/fr
Application granted granted Critical
Publication of EP1002172B1 publication Critical patent/EP1002172B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck

Definitions

  • the present invention relates to concrete supply arms - in particular arms mounted on vehicle-transported concrete pumps - having several sections and articulating joints between said sections.
  • the present invention considers and solves these problems by providing a concrete supply arm - to be mounted in particular on vehicle-transported concrete pumps - having several sections and articulating joints between said sections, characterized in that the relative movement of the sections is performed, in correspondence of at least some of the articulating joints of the arm, by means of actuator mechanisms consisting of a worm gear actuated by a hydraulic motor.
  • said actuators also comprise a locking brake.
  • the relative movement of the sections is performed by means of actuator mechanisms consisting of a worm gear actuated by a hydraulic motor only at the articulating joints close to the delivery end of the arm.
  • the angular velocity at which the relative movement of the sections takes place may be kept constant, without difficulty, over the entire amplitude of the relative angular displacements and the latter may also be much greater than
  • Fig. 1 is a schematic view of the articulation between two end sections of a concrete supply arm according to the prior art
  • Figs. 2 and 3 are two schematic views - a side view and a plan view - of an articulating joint between two sections of a concrete supply arm equipped, according to a first embodiment of the invention, with an internal actuator;
  • Figs. 4 and 5 are two similar schematic views of a different embodiment of the solution according to Figs. 2 and 3;
  • Figs. 6 and 7 are two similar schematic views of a further embodiment of the solution according to Figs. 2 and 3;
  • Figs. 8 and 9 are two schematic views - a side view and a plan view - of an articulating joint between two sections of a concrete supply arm equipped, according to another embodiment of the invention, with an external actuator;
  • Fig. 10 shows in detail a sectional view of a possible construction of one of the actuators applied to the embodiments of Figs. 2 to 9 of the invention.
  • Fig. 1 shows a schematic view of the construction of an articulation or articulating joint between two end sections of a concrete supply arm according to the prior art: the two sections 1 and 2 are connected by a kinematic mechanism comprising two connecting rods 3 and 4 which are pivotably hinged at 5, 6 and 7 to the two sections 1 and 2 and to one another and a double-acting hydraulic cylinder-piston unit 8, the cylinder of which is pivotably hinged at the closed end at 9 to a lug 1 A of the section 1 and the piston of which is pivotably hinged at 10 with its outer end to the connecting rod 3, so as to control the movement of the section 2 with respect to the section 1 .
  • a kinematic mechanism comprising two connecting rods 3 and 4 which are pivotably hinged at 5, 6 and 7 to the two sections 1 and 2 and to one another and a double-acting hydraulic cylinder-piston unit 8, the cylinder of which is pivotably hinged at the closed end at 9 to a lug 1 A of the section 1 and the piston of
  • the maximum angle by which the section 2 is able to be rotated with respect to the section 1 does not exceed 280° (it is equivalent to about 270°), while the angular velocities at which the sections of the arm may be moved are not constant, but continuously variable, since the angles of relative movement of the sections are not proportional to the stroke of the cylinder.
  • an internal actuator 1 in line with both the sections 1 1 and 1 2 of the arm, is used.
  • the actuator comprises a worm gear consisting of a worm screw housed in a casing 14 and of a wheel in engagement with said screw, housed inside a casing 1 5, the latter being located in a special seat 1 6 formed at the end of the section 1 1 of the arm.
  • the casing 14 also houses a hydraulic motor which - suitably energised - causes rotation of the the worm screw of the actuator and produces the rotations, in either direction, of the associated wheel, moving the section 1 2 with respect to the section 1 1 .
  • the actuator also comprises preferably parking brake means so as to lock as securely as possible the two sections 1 1 and 1 2 in the desired position. It can be clearly seen that it is possible to exceed without difficulty, using this solution, an angle of movement of the section 1 2 with respect to the section 1 1 which is far greater than 280° and it is obvious that, by using the actuator 1 3, it is possible to achieve a constant angular velocity during the movement.
  • parking brake means so as to lock as securely as possible the two sections 1 1 and 1 2 in the desired position.
  • the actuator 1 3 is again internal and in line with both the sections, but the rest position of the latter, which in the preceding case consisted in the elements resting on top of each other (section 1 2 folded underneath the section 1 1 ), in this case consists in the elements being aligned with each other, with the section 1 2 which is at rest being arranged aligned as a continuation of the section 1 1 .
  • the actuator 1 3 is again internal, but is in line with only one of the sections of the arm to be moved relative to one another, for example with the section 1 1 .
  • an actuator 23 which is located outside both the sections 21 and 22 of the arm is used.
  • the actuator comprises a worm screw housed in a casing 24 and a wheel in engagement with said screw, housed in a casing 25.
  • the casing 24 also houses a hydraulic motor which - suitably energised - causes rotation of the worm screw of the actuator and produces rotations, in either direction, of the associated wheel, moving the section 22 with respect to the section 21 .
  • the actuator is arranged alongside the ends of the sections 21 and 22 which are articulated with one another and is conne.cted to the section 21 by an anti-torsional bar 21 A and to the section 22 by the output shaft moved by the wheel housed inside the casing 25.
  • the actuator preferably comprises locking brake means, so as to lock as securely as possible the two sections 21 and 22 in the desired position.
  • locking brake means so as to lock as securely as possible the two sections 21 and 22 in the desired position.
  • Fig. 10 illustrates a possible construction of an actuator 30 to be applied to any one of the embodiments according to Figs. 2 and 9 of the concrete supply arm according to the invention.
  • the actuator illustrated comprises, inside a casing 31 to be associated with the arm by means of the lug 31 A, a transmission consisting of a worm screw

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manipulator (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Reciprocating Pumps (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Braking Arrangements (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Jib Cranes (AREA)

Abstract

L'invention concerne un bras d'alimentation en béton conçu particulièrement pour être monté sur des pompes à béton transportées sur un véhicule et possédant plusieurs parties (11, 12), ainsi que des articulations entre lesdites parties. Le déplacement relatif de ces parties (11, 12) du bras, par rapport à au moins quelques unes de ces articulations, est effectué par l'intermédiaire de mécanismes de commande (23) consistant en une vis sans fin entraînée par un moteur hydraulique. Ces mécanismes de commande comportent également, de préférence, un frein de blocage.
EP98941399A 1997-07-31 1998-07-22 Bras d'alimentation en beton presentant des parties articulees Expired - Lifetime EP1002172B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT97MI001835A IT1293518B1 (it) 1997-07-31 1997-07-31 Braccio a piu' tronchi snodati per la distribuzione del calcestruzzo
ITMI971835 1997-07-31
PCT/EP1998/004588 WO1999006650A1 (fr) 1997-07-31 1998-07-22 Bras d'alimentation en beton presentant des parties articulees

Publications (2)

Publication Number Publication Date
EP1002172A1 true EP1002172A1 (fr) 2000-05-24
EP1002172B1 EP1002172B1 (fr) 2001-10-10

Family

ID=11377687

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98101317A Withdrawn EP0894915A1 (fr) 1997-07-31 1998-01-26 Bras distributeur de béton avec parties articulées
EP98941399A Expired - Lifetime EP1002172B1 (fr) 1997-07-31 1998-07-22 Bras d'alimentation en beton presentant des parties articulees

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP98101317A Withdrawn EP0894915A1 (fr) 1997-07-31 1998-01-26 Bras distributeur de béton avec parties articulées

Country Status (17)

Country Link
EP (2) EP0894915A1 (fr)
CN (1) CN1265719A (fr)
AR (1) AR015139A1 (fr)
AT (1) ATE206793T1 (fr)
AU (1) AU8978498A (fr)
CA (1) CA2298508A1 (fr)
CO (1) CO4840534A1 (fr)
DE (1) DE69801997T2 (fr)
DK (1) DK1002172T3 (fr)
ES (1) ES2165698T3 (fr)
HR (1) HRP20000046A2 (fr)
IT (1) IT1293518B1 (fr)
PL (1) PL338450A1 (fr)
PT (1) PT1002172E (fr)
TR (1) TR200000265T2 (fr)
WO (1) WO1999006650A1 (fr)
ZA (1) ZA986638B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115613817A (zh) * 2022-09-08 2023-01-17 徐州徐工施维英机械有限公司 泵车臂架以及泵车

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT511833B1 (de) * 2011-11-10 2013-03-15 Schwing Gmbh F Mastaufbau insbesondere für eine autobetonpumpe
DE102014203054A1 (de) * 2014-02-20 2015-09-03 Putzmeister Engineering Gmbh Betonverteilermast, insbesondere einer fahrbaren Betonpumpe
DE102019133380A1 (de) * 2019-11-15 2021-05-20 Schwing Gmbh Gelenkantrieb mit Schneckengetriebe, Großmanipulator und Autobetonpumpe
DE102019133396A1 (de) * 2019-11-15 2021-05-20 Schwing Gmbh Gelenkantrieb mit Planetengetriebe, Großmanipulator und Autobetonpumpe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1759404C3 (de) * 1968-04-27 1974-03-28 Friedrich Dipl.-Ing. 4680 Wanne-Eickel Schwing Vorrichtung zum Verteilen von Beton
US3572380A (en) * 1968-10-08 1971-03-23 Challenge Cook Bros Inc Concrete pump boom
US4519768A (en) * 1982-10-29 1985-05-28 Takenaka Komuten Co., Ltd. Apparatus for horizontally casting concrete

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9906650A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115613817A (zh) * 2022-09-08 2023-01-17 徐州徐工施维英机械有限公司 泵车臂架以及泵车

Also Published As

Publication number Publication date
ES2165698T3 (es) 2002-03-16
TR200000265T2 (tr) 2000-05-22
EP1002172B1 (fr) 2001-10-10
CA2298508A1 (fr) 1999-02-11
AR015139A1 (es) 2001-04-18
EP0894915A1 (fr) 1999-02-03
HRP20000046A2 (en) 2001-10-31
IT1293518B1 (it) 1999-03-01
DE69801997T2 (de) 2002-05-16
WO1999006650A1 (fr) 1999-02-11
ITMI971835A1 (it) 1999-01-31
DE69801997D1 (de) 2001-11-15
CO4840534A1 (es) 1999-09-27
CN1265719A (zh) 2000-09-06
PL338450A1 (en) 2000-11-06
DK1002172T3 (da) 2002-02-11
ZA986638B (en) 1999-02-02
ATE206793T1 (de) 2001-10-15
AU8978498A (en) 1999-02-22
PT1002172E (pt) 2002-03-28

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