EP0706869B1 - Mélangeur mobile - Google Patents

Mélangeur mobile Download PDF

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Publication number
EP0706869B1
EP0706869B1 EP95112965A EP95112965A EP0706869B1 EP 0706869 B1 EP0706869 B1 EP 0706869B1 EP 95112965 A EP95112965 A EP 95112965A EP 95112965 A EP95112965 A EP 95112965A EP 0706869 B1 EP0706869 B1 EP 0706869B1
Authority
EP
European Patent Office
Prior art keywords
cover
funnel
edge
mixer
outlet funnel
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 - Lifetime
Application number
EP95112965A
Other languages
German (de)
English (en)
Other versions
EP0706869A1 (fr
Inventor
Alfred Hingele
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.)
Liebherr Mischtecknik GmbH
Original Assignee
Liebherr Mischtecknik 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 Liebherr Mischtecknik GmbH filed Critical Liebherr Mischtecknik GmbH
Publication of EP0706869A1 publication Critical patent/EP0706869A1/fr
Application granted granted Critical
Publication of EP0706869B1 publication Critical patent/EP0706869B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4203—Details; Accessories
    • B28C5/4234—Charge or discharge systems therefor

Definitions

  • the invention relates to a truck mixer with one on one Vehicle frame rotatably mounted and provided with a rotary drive Mixing drum, one with one at its rear end has a circular edge, with a frame-fixed held outlet funnel, the bottom of the opening covered, and with one at its upper edge on a frame-fixed Bracket or holding part pivoted, round, the opening closing lid through which a funnel passes and the one opposite the edge of the opening by a turn the mixing drum seal is sealed and the by an articulated with this and a frame-fixed part Pressure medium-piston-cylinder unit between its closed position and its open position is pivotable.
  • a truck mixer of this type is known for example from EP 0 374 682 B1 known.
  • Truck mixers are increasingly used to transport liquid Mixed material used so that it is necessary to open the rear opening seal the drum with a lid that spills out of the mixed liquid prevented.
  • a known common lid system of the type mentioned is explained in more detail below with reference to FIGS. 5 to 7 of the drawing:
  • the mixing drum 2 has on her rear end of a circular opening 3 with a conical shape circumferential flange-like edge that widens outwards 4.
  • the lower part of the flange-shaped edge 4 is from one outlet funnel 5 held in a frame-fixed manner.
  • This discharge funnel 5 consists of two essentially U-shaped, groove-shaped parts arranged at an obtuse angle to each other 6, 7, whose lower legs in corresponding cutouts overlap the flange-shaped edge 4 of the mixing drum 2.
  • the two channel-shaped parts 6, 7 of the discharge funnel are in Area of the vertical center plane of the mixing drum 2 in the manner welded together that they form an outlet opening 8.
  • the outlet funnel 5 is by lateral holding pieces 9, 10 and intermediate trestles or supports, not shown connected to the vehicle frame.
  • a circular closure by a joint 15 via a support piece 16 17 is articulated.
  • a pressure medium piston-cylinder unit 19 is provided, whose cylinders are centered on a triangular plate 20 is articulated, that with the outer legs of the side parts 6, 7 of the discharge funnel is welded, and its piston rod hinged to the central upper region of the hopper 18 is.
  • the cover 17 is shown in its closed position, in which the cover seal grinds on the flange-shaped edge 4 of the Mixing drum is applied.
  • the lid system and the seal and mixing drum rim is a good and easy access desired to the opening area of the mixing drum, but that in the known Truck mixer is hindered that the opening angle a 1 of the cover severely restricted by hitting the outer wall of the discharge funnel is.
  • the invention is therefore based on the object of an improved truck mixer of the type mentioned to create a safe pouring of the mix allowed and at the same time easy access to the opening of the Mixing drum enabled for maintenance and cleaning purposes.
  • the outlet funnel is therefore with one of the contours of the lower region of the lid edge appropriate round cutout provided that the pivoting of the Lid allowed beyond the outlet funnel.
  • the mixer is not the opening angle of the lid through the outer wall of the discharge funnel because the lid is pivoted beyond this can be. Will the pressure-piston-cylinder unit pivoting the cover loosened or unhooked, it can even be moved down to the mixing drum fold back so that the opening of the mixing drum is fully released.
  • the curvature of the cutout of the discharge funnel is expedient so adapted to the curvature of the lid that the When pivoting, cover the edge of the cutout straight can happen.
  • This configuration therefore provides that between approximately in the area of the outer wall of the discharge funnel pivoted lid and the neckline just a narrow one Gap remains so that the lid is emptied during the emptying process closes the outlet funnel to the outside and an undesirable Mix material escapes over the edge of the discharge funnel prevented.
  • An almost complete conclusion is reached if there is a corresponding partial discharge swung out lid in the plane of the outer wall of the Outlet funnel.
  • the lid is expediently mounted on a bracket, the Leg connected to the outer side parts of the discharge funnel are.
  • Two side pressure medium piston-cylinder units can be used to pivot the cover be provided. These pressure medium piston-cylinder units are appropriately articulated with the side parts of the discharge funnel and the filling funnel connected.
  • the lid system according to the invention differs according to FIGS. 1 to 4 differs from the known ones according to FIGS. 5 to 7, that the upper edge 30 of the outer wall of the discharge funnel 5th is provided with an arcuate curved cutout, the Contour essentially through the respective edge area of the cover 17 is determined, the plane of the outer wall of funnel 5 penetrates.
  • the bottom of the edge of the Cover 17 is on the contour of the upper edge 30 of the outer Wall of the discharge funnel 5 matched such that between the narrowest possible gap remains in the two edges, the on the one hand an unimpeded pivoting out of the cover 17 allows the discharge funnel 5 and on the other hand undesired leakage of mixed material after swiveling the Lid 17 prevented in the emptying position.
  • the cover 17 For pivoting the cover 17 are pressure-piston-cylinder units 31, 32 provided, the cylinders on holding pieces 33 are articulated with the upper side regions of the Discharge funnel 5 are connected.
  • the piston rods of the pressure medium-piston-cylinder units 31, 32 are bow-shaped Holding pieces 34 hinged, the legs of which with the side walls of the inlet funnel 18 are welded.
  • the swiveling of the cover 17 serving pressure medium piston-cylinder units 31, 32 are laterally outside in the manner shown in FIG. 4 the pivoting range of the lid 17 is arranged so that the Cover 17 free of obstacles also via the pressure medium piston-cylinder units 31, 32 can swing out.
  • the lid system according to the invention is in one position can be seen in which the lid 17 the opening of the mixing drum 2 closes.
  • the cover is 17th swung into its emptying position by an angle ⁇ 1, in which is the lower edge area of the cover 17 in the area of Edge 30 of the cutout of the outer wall of the discharge funnel 5 is located.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Claims (5)

  1. Mélangeur mobile avec un tambour mélangeur (2) logé d'une manière tournante sur un châssis de véhicule et pourvu d'un dispositif d'entraínement en rotation qui présente à son extrémité arrière une ouverture pourvue d'un bord circulaire, avec une trémie d'écoulement (5) retenue d'une manière solidaire au châssis qui recouvre la zone inférieure de l'ouverture et avec un couvercle rond (17), logé d'une manière pivotante à son bord supérieur à un étrier ou partie de retenue solidaire du châssis, fermant l'ouverture, qui traverse la trémie d'introduction (18) et qui est rendu étanche par rapport au bord de l'ouverture par une garniture d'étanchéité permettant une rotation du tambour mélangeur (20) et qui peut être amené à pivoter par une unité d'actionnement (31, 32) reliée d'une manière articulée à celui-ci et à une partie solidaire du châssis, entre sa position de fermeture et sa position d'ouverture, caractérisé en ce que la trémie d'écoulement (5) présente une découpure ronde (30) correspondant au contour de la zone inférieure du bord de couvercle, qui permet un pivotement du couvercle (17) au-delà de la trémie d'écoulement (5), où le contour de la découpure (30) de la trémie d'écoulement (5) est adapté de telle sorte au contour du couvercle que le couvercle, lors de son pivotement, peut juste passer devant le bord de la découpure et, lorsque le couvercle (17) a été amené par pivotement dans la zone de la découpure, celui-ci ferme la trémie d'écoulement (5) vers l'extérieur.
  2. Mélangeur mobile selon la revendication 1, caractérisé en ce que le couvercle (17) est logé à un étrier dont les branches sont reliées aux parties latérales extérieures de la trémie d'écoulement (5).
  3. Mélangeur mobile selon l'une des revendications 1 à 4, caractérisé en ce que deux unités latérales à piston et à cylindre à fluide sous pression (31, 32) sont prévues pour le pivotement du couvercle (17).
  4. Mélangeur mobile selon la revendication 3, caractérisé en ce que les deux unités à piston et à cylindre à fluide sous pression (31, 32) sont reliées respectivement d'une manière articulée aux parties latérales de la trémie d'écoulement (5) et de la trémie d'introduction (18).
  5. Mélangeur mobile selon la revendication 3 ou 4, caractérisé en ce que les deux unités à piston et à cylindre à fluide sous pression (31, 32) sont disposées à l'extérieur de la zone de pivotement du couvercle (17).
EP95112965A 1994-10-13 1995-08-17 Mélangeur mobile Expired - Lifetime EP0706869B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9416517U DE9416517U1 (de) 1994-10-13 1994-10-13 Fahrmischer
DE9416517U 1994-10-13

Publications (2)

Publication Number Publication Date
EP0706869A1 EP0706869A1 (fr) 1996-04-17
EP0706869B1 true EP0706869B1 (fr) 2002-01-16

Family

ID=6914861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112965A Expired - Lifetime EP0706869B1 (fr) 1994-10-13 1995-08-17 Mélangeur mobile

Country Status (4)

Country Link
EP (1) EP0706869B1 (fr)
AT (1) ATE211961T1 (fr)
DE (2) DE9416517U1 (fr)
ES (1) ES2171479T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29621448U1 (de) * 1996-12-10 1997-02-06 Liebherr Mischtechnik Gmbh Verschluß
DE19956939A1 (de) * 1999-11-26 2001-05-31 Eirich Maschf Gustav Vorrichtung und Verfahren zum Verschließen einer Entleeröffnung in einem drehenden Behälter
US6957908B1 (en) * 2001-09-15 2005-10-25 Oshkosh Truck Corporation Environmental shield for a truck mounted concrete mixer
CN108407094A (zh) * 2018-06-04 2018-08-17 莱州双象重工机械有限公司 自动上料搅拌机
CN111805745B (zh) * 2020-07-17 2021-07-09 安徽工业大学 一种搅拌车尾盖密封装置移动工装

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1999843A (en) * 1931-10-09 1935-04-30 Blaw Knox Co Mixer
US2267801A (en) * 1939-08-14 1941-12-30 T L Smith Co Transit concrete mixer
GB544299A (en) * 1941-05-09 1942-04-07 Chain Belt Co Method of and apparatus for mixing concrete
US2451555A (en) * 1944-10-23 1948-10-19 Chain Belt Co Means for charging, sealing, and discharging mixers
US4318621A (en) * 1977-05-09 1982-03-09 Jaeger Machine Company Transit concrete mixer with displaceable charging hopper
US4154534A (en) * 1977-07-28 1979-05-15 The Jaeger Machine Company Transit concrete mixer adapted for loading and discharging aggregates of a wide range of slump value
EP0374681A1 (fr) * 1988-12-17 1990-06-27 Stetter Gmbh Mélangeur monté sur véhicule
DE59303269D1 (de) * 1993-05-05 1996-08-22 Stetter Gmbh Fahrzeugmischer für fliessfähige Medien, wie Beton

Also Published As

Publication number Publication date
ATE211961T1 (de) 2002-02-15
ES2171479T3 (es) 2002-09-16
EP0706869A1 (fr) 1996-04-17
DE59509997D1 (de) 2002-02-21
DE9416517U1 (de) 1995-01-12

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