EP1982811A2 - Mélangeur de matériau de construction - Google Patents

Mélangeur de matériau de construction Download PDF

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Publication number
EP1982811A2
EP1982811A2 EP08006743A EP08006743A EP1982811A2 EP 1982811 A2 EP1982811 A2 EP 1982811A2 EP 08006743 A EP08006743 A EP 08006743A EP 08006743 A EP08006743 A EP 08006743A EP 1982811 A2 EP1982811 A2 EP 1982811A2
Authority
EP
European Patent Office
Prior art keywords
mixer
drive
bearing
drum
building material
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
EP08006743A
Other languages
German (de)
English (en)
Other versions
EP1982811B1 (fr
EP1982811A3 (fr
Inventor
Klaus-Peter Mollhagen
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 Components Biberach GmbH
Original Assignee
Liebherr Werk Biberach 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 Werk Biberach GmbH filed Critical Liebherr Werk Biberach GmbH
Publication of EP1982811A2 publication Critical patent/EP1982811A2/fr
Publication of EP1982811A3 publication Critical patent/EP1982811A3/fr
Application granted granted Critical
Publication of EP1982811B1 publication Critical patent/EP1982811B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B28C5/4265—Mounting means for drums; Support frames
    • 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
    • B28C5/4206—Control apparatus; Drive systems, e.g. coupled to the vehicle drive-system
    • B28C5/421—Drives
    • B28C5/4217—Drives in combination with drum mountings; Drives directly coupled to the axis of rotating drums

Definitions

  • the present invention relates to a building material mixer with a mixer drum which is rotatably driven by a mixer drive, wherein the mixer drum is rotatably supported at one of its front ends by the mixer drive to a mixer frame part, in particular chassis frame part, and the mixer drive a drive part, in particular hydraulic motor, and a Having associated with the mixer drum drive gear.
  • FIG. 3 shows a conventional mixer drive, more precisely its transmission, which is designed as a two-stage planetary gear, which is driven on the input side by a drive motor not shown and the output side drives a drum flange, in the FIG. 3 drawn on the right and is rigidly connected to the mixer drum.
  • the gearbox of in FIG. 3 shown Mischergetriebes is rigidly bolted to a bearing rigidly connected to the bearing block.
  • Twisting of the mixer frame bearing the mixer frame relative to the mixer drum or vice versa can be compensated by the torsionally formed drum flange to a certain extent.
  • the said drum flange is formed directly on the output shaft of the mixer gear, but formed quite thin so that it allows twisting due to tilting movements.
  • the bearing of the drum flange bearing output shaft is formed by inclined tapered roller bearings such that also here the torsional stiffness is kept quite limited to allow compensating movements.
  • the object of the present invention is to provide an improved building material mixer of the type mentioned, which avoids the disadvantages of the prior art and further develops the latter in an advantageous manner.
  • the torsions between the mixer frame and the mixer drum no longer or no longer intercept only at the interface between the mixer gear and mixer drum, but to fix the entire mixer drive movably on the mixer frame, so that the entire mixer drive mitigates twisting movements of the mixer drum relative to the chassis frame or Conversely, torsional movements of the chassis frame at the interface between mixer frame and mixer drive can be compensated.
  • the mixer drive is movably mounted on the mixer frame part by means of movable bearing means permitting tilting movements.
  • the mixer drum is attached to the gear housing of the drive gear, whereby a projecting beyond the drive gear drum flange and thereby the axial length of the arrangement can be shortened.
  • the output movement of the mixer gear is no longer transmitted via a gear shaft and a drum flange attached thereto, but via the gear housing of the mixer gear to the mixer drum.
  • the gear housing is no longer rigidly mounted on the mixer frame part, but rotatably mounted.
  • the transmission shaft is no longer exposed to the known high bending forces, also results from a contraction of the frame-side bearing and the mischertrommel thesisen bearing point a small lever arm, the total leads to a lower stress on the mixer drive and in particular of the mixer gear to torsion.
  • the mixer drum is attached to a drum bearing point of the gear housing, which is set back from the mixer drum facing end side of the drive gear to the drive part of the mixer drive back so that the drive gear from said drum bearing point out to the mixer drum or in the mixer drum protrudes into it.
  • the drum bearing point is thus set back to the drive motor, whereby the introduced at the drum bearing point in the transmission housing bearing forces have a short lever length with respect to the frame-side bearing point and a favorable power flow with respect to the bearing forces can be achieved.
  • the gear housing may have a mantle surface side projecting mounting flange to which the mixer drum or a mixer drum connecting piece is rigidly fixed, for example, is screwed firmly by bolts.
  • the said mounting flange can in this case, for example, placed in the manner of a tire on the gear housing and fixed there rigidly, for example, welded or screwed.
  • the mounting flange is preferably integrally formed on the gear housing.
  • the frame-side bearing means by means of which the mixer drive on the mixer frame with respect to the drive axis of rotation rotatably, but stored in a tilting transversely permitting manner, advantageously engage at a bearing point of the mixer drive, which is in the range of the drive part, in particular the hydraulic motor of the mixer drive.
  • said frame-side bearing point of the mixer drive can be approximately centrally to the axial extension of a motor body of the mixer drive.
  • the bearings of the mixer drive namely the frame-side bearing on the one hand and the mixer drum side bearing on the other hand, together, so that overall favorable conditions with respect to the power flow and the derivative of the bearing forces arise.
  • a particularly compact design is achieved, which is characterized by low axial space requirement.
  • the aforementioned storage means for movable, tilting movements permitting storage of the mixer drive to the mixer frame are advantageously elastic and motion damping, in particular rubber-elastic, so that not only compensates twisting and misalignment between the frame part and mixer drum, but also intercepted dynamic bearing forces in a favorable manner and reduces unwanted vibrations can be.
  • the bearing means comprise in particular at least one rubber-elastic bearing element, by which the mixer drive is secured to the mixer frame part.
  • the at least one rubber bearing element is installed and / or formed in such a way that the rubber bearing element experiences no tensile stresses, but is always claimed only on pressure and / or shear.
  • the rubber bearing member may be installed under a sufficiently strong bias, which prevent the occurrence of tensile stresses of the rubber bearing member.
  • the bearing element need not necessarily be a rubber bearing element, it may also be provided with a corresponding properties exhibiting plastic bearing element or a bearing element made of a different material, which has the desired elastic and / or vibration damping properties.
  • a bearing ring may be provided in which a preferably cylindrical and / or annular bearing inner part is seated such that the bearing inner part opposite the bearing ring is rotatably held with respect to the axis of rotation of the drive, but can move relative to the bearing ring, in particular in the form of tilting about a pivot axis of the mixer drive and / or the mixer drum transverse tilt axis, wherein the mobility is advantageously designed such that tilting movements around a plurality of tilting axes, which are in a plane perpendicular to the mixer drum rotation axis, are possible.
  • At least one elastic bearing element preferably a rubber bearing element, is provided between said bearing ring and the bearing inner part seated therein, by which the bearing ring and the bearing inner part are held movably relative to one another.
  • a plurality of elastic bearing elements can be stacked on top of each other between the bearing ring and the bearing inner part seated therein, wherein annular intermediate pieces can be provided between the individual bearing elements.
  • the said bearing ring need not necessarily have the form of a closed ring, it may also be provided a bearing ring in the form of a ring segment in the manner of a half-ring or three-quarter annular bearing bed or a storage fork. Preferably, however, a full bearing ring is provided, in which the bearing inner part is fully enclosed.
  • the bearing inner part here is advantageously approximately cylindrical and in particular also annular, wherein the outer shell side of the bearing inner part may be curved crowned.
  • the bearing ring surrounds a housing part surrounding the drive part of the mixer drive, in particular its hydraulic motor, on which the aforementioned bearing inner part is provided.
  • the bearing inner part can in this case be formed as a separate component and rigidly secured to the housing part.
  • the bearing inner part can also be formed integrally directly on the housing part.
  • the bearing ring surrounding the said housing part can be rigidly fastened to the mixer frame part, for example screwed by screw bolts.
  • the gear housing carrying the mixer drum can basically be constructed differently.
  • the gear housing has a shell surface part connected to the mixer drum, which is rotatably mounted on a housing connecting part, which is supported by the aforementioned bearing means on the mixer frame.
  • the housing connection piece can in this case advantageously surround the drive part of the mixer drive, in particular its motor body, and / or form a housing part for this drive part.
  • the housing connecting piece surrounding the drive part can advantageously form a receiving chamber into which the drive part, in particular the motor of the mixer drive, can be inserted in the manner of a separate module. Accordingly, the engine need only be pushed axially onto the transmission, and vice versa, it can be disassembled in a simple manner.
  • a clutch that can be closed and released by axial movement is preferably provided between the motor shaft and the transmission input shaft.
  • a stop may be provided which limits a tilting of the mixer drive relative to the mixer frame.
  • the stop can basically be designed in various ways.
  • the stop can form a stop part formed by the bearing ring as well as a stop part formed by or connected to the gear housing include, which approach each other when reaching a predetermined amount of tilting movement.
  • the movable mounting of the mixer drive on the mixer frame part has a mobility in the form of an approved angular offset of more than 2 ° and preferably less than 10 °.
  • the permitted angular offset between 4 ° and 8 °, in particular about 6 ° amount, which on the one hand allows a sufficient compensation of frame distortions and on the other hand prevents a vibration problem by excessive mobility.
  • mixer drive 1 sits on a mixer bearing 2 on a bearing block 3, which is mounted with the chassis frame 4 of a driving mixer, not shown, moreover.
  • the truck mixer comprises in a conventional manner a multi-axle chassis with corresponding wheels, which carries the said chassis frame 4, on which in also known per se A driver's cab is arranged, behind which the mixer drive and driven therefrom mixer drum 5 lie.
  • the mixer drive 1 comprises a drive part 6 for generating a rotary drive movement and a drive gear 7, which is driven on the input side of said drive part 6 and the output side rotatably drives the mixer drum 5.
  • the drive gear 7 is formed as a two-stage planetary gear, the sun gear of the first stage is driven via the input shaft 8 of the drive member 6 ago.
  • the drive part 6 comprises a hydraulic motor 9 in the form of a hydraulic axial piston motor, the drive shaft 10 with the input shaft 8 of the drive gear 7 is rotatably coupled.
  • the drive member 6 is seated frontally on the drive gear 7, see. FIG. 1 ,
  • the drive gear 7 comprises a housing 11 which includes a lateral surface portion 12 which circumferentially surrounds the gear stages of the planetary gear.
  • a radially projecting drum flange 13 is provided approximately axially in the middle, on which the mixer drum 5, which in FIG. 1 only indicated, by bolts 14 is rigidly fastened.
  • the said drum flange 13 is set back from the mixer drum 5 facing end face 15 of the drive gear 7 to the drive part 6 out, see. FIG. 1 , so that the drive gear 7 or its gear housing 11 projects toward the mixer drum 5.
  • the lateral surface part 12 of the gear housing 11 is rotatably supported by a roller bearing 16 on a housing connection part 17, on the one hand the drive gear 7 covers the front side and on the other hand limits a receiving chamber 18, in which the hydraulic motor 9 of the drive member 6 is inserted end face, see. FIG. 1 , This allows the hydraulic motor 9 in the manner of a separate module simply to the Drive gear 7 attached or used in the housing connector 17 by being secured by bolts 19.
  • the housing connecting part 17 is rotatably supported by the mixer bearing 2 with respect to the motor axis of rotation, but tiltable about this transverse transverse axes mounted on the bearing block 3 of the chassis frame 4.
  • the tiltability of the mixer drive 1 is given in the manner of a ball joint in all directions, ie the tiltability can by several in a plane to the FIG. 1 vertical plane extending tilt axes take place.
  • FIG. 2 shows a tilted position, wherein the maximum tilt angle is plotted 6 °.
  • the mixer bearing 2 in this case comprises movably formed, the tilting movements transverse to the drive axis permitting bearing means 20 which are elastic and damping, in particular rubber-elastic, are formed.
  • the bearing means 20 advantageously comprise a plurality of elastic, deformable bearing elements 21, which may be formed in particular in the form of rubber bearing elements by which the mixer drive 1 is mounted on the bearing block 3 connected to the chassis frame 4.
  • the bearing means 20 thereby comprise a bearing ring 22 in which a likewise annular bearing inner part 23 is seated, which can be tilted relative to the bearing ring 22.
  • the bearing elements 21 may in this case form annular shell segments, but preferably be designed as bearing ring elements and have a flattened, elongated cross section, see. FIG. 1 , In the illustrated embodiment, a plurality of annular elastic bearing elements 21 sit one above the other or into each other, wherein the bearing elements 21 are separated from each other by likewise annular spacers 24, cf.
  • FIG. 1 In the illustrated embodiment, a plurality of annular elastic bearing elements 21 sit one above the other or into each other, wherein the bearing elements 21 are separated from each other by likewise annular spacers 24, cf.
  • the elastic, in particular rubber-elastic bearing elements 21 are biased between the bearing ring 22 and the bearing inner part 23 in such a way that they also in deformations, as FIG. 2 shows, only on pressure or shear, but not claimed on train.
  • the elastic bearing elements 21 of the bearing ring 22 and the bearing inner part 23 are mutually movable and in particular tiltable, as FIG. 2 shows, so that the bearing means 20 in total or the mixer bearing 2 has a mobility that allows tilting movements of the mixer drive 1 to almost any tilting axes transverse to the drive axis.
  • the tiltability of the mixer drive 1 relative to the bearing block 3 is limited by a stop 25 which is formed on the one hand by an end face of the bearing ring 22 and on the other hand, a cover 26 which covers the bearing gap between the lateral surface portion 12 of the gear housing 11 and the housing connector part 17 and the latter housing connection part 17 is attached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Accessories For Mixers (AREA)
EP08006743.2A 2007-04-20 2008-04-02 Mélangeur pour matériaux de construction Not-in-force EP1982811B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007018776A DE102007018776A1 (de) 2007-04-20 2007-04-20 Baustoffmischer

Publications (3)

Publication Number Publication Date
EP1982811A2 true EP1982811A2 (fr) 2008-10-22
EP1982811A3 EP1982811A3 (fr) 2010-09-22
EP1982811B1 EP1982811B1 (fr) 2013-06-12

Family

ID=39645411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08006743.2A Not-in-force EP1982811B1 (fr) 2007-04-20 2008-04-02 Mélangeur pour matériaux de construction

Country Status (8)

Country Link
US (1) US8641262B2 (fr)
EP (1) EP1982811B1 (fr)
CN (1) CN101288982B (fr)
AU (1) AU2008201718B2 (fr)
CA (1) CA2628902C (fr)
DE (1) DE102007018776A1 (fr)
ES (1) ES2417136T3 (fr)
RU (1) RU2376134C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3222465A1 (fr) * 2016-03-21 2017-09-27 Liebherr-Mischtechnik GmbH Support de pompe hydraulique destiné à entraîner le tambour mélangeur d'une bétonnière portée

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004038506A1 (de) * 2004-08-07 2006-02-23 Zf Friedrichshafen Ag Getriebe, insbesondere zum Antrieb einer Trommel eines Fahrmischers
KR101239049B1 (ko) * 2005-06-10 2013-03-04 젯트에프 프리드리히스하펜 아게 믹싱 드럼의 각편차를 보상하기 위한 보상 장치
DE202009015406U1 (de) * 2009-11-12 2011-04-07 Liebherr-Mischtechnik Gmbh Fahrmischer
DE102010062948A1 (de) * 2010-12-13 2012-06-14 Zf Friedrichshafen Ag Getriebe einer Antriebsvorrichtung einer Mischtrommel
WO2016015864A1 (fr) * 2014-08-01 2016-02-04 Pmp Pro-Mec S.P.A. Mécanisme d'entraînement
CN104690834A (zh) * 2015-03-11 2015-06-10 烟台金阳建筑工程机械有限公司 一种便携式可移动混凝土搅拌装置
DE102020118938B3 (de) * 2020-07-17 2021-07-29 OilQuick Deutschland KG Schnellwechselsystem zum Wechseln von Anbaugeräten an einer Baumaschine
CN112109203A (zh) * 2020-09-25 2020-12-22 孙国花 一种建筑机械领域的可自洁的建筑浆液搅拌设备

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
DE1930753U (de) * 1965-10-14 1966-01-05 Georg Stetter Lagerung fuer trommeln, insbesondere automischertrommeln.
US3749372A (en) * 1972-01-27 1973-07-31 Funk Mfg Co Yieldable support means and drive mechanism for concrete mixer drums
DE2341250A1 (de) * 1973-08-16 1975-02-27 Stetter Gmbh Antriebsvorrichtung fuer die trommel von automischern
US4335963A (en) * 1980-03-27 1982-06-22 Cooper Industries Output coupling for concrete mixer transmission
DE3121797C2 (de) * 1981-06-02 1984-03-22 Carl Hurth Maschinen- und Zahnradfabrik GmbH & Co, 8000 München Mischtrommellagerung für einen Transportbetonmischer
US4575254A (en) * 1984-04-04 1986-03-11 Challenge-Cook Bros., Incorporated Transit mixer support pedestal mounting apparatus
SU1760978A3 (ru) * 1990-03-22 1992-09-07 Сидоров Владимир Иванович (Su) Автобетоносмеситель
US5348387A (en) * 1992-11-18 1994-09-20 Gordon Dale F Auxiliary bearing and drive mechanism for a concrete mixer
US5820258A (en) * 1997-04-08 1998-10-13 Oshkosh Truck Corporation Cement mixer drum support
ATE550164T1 (de) * 2004-08-07 2012-04-15 Zahnradfabrik Friedrichshafen Antrieb für eine mischtrommel
DE102005027038A1 (de) * 2005-06-10 2006-12-14 Zf Friedrichshafen Ag Antrieb für eine Mischtrommel
DE102004038504A1 (de) * 2004-08-07 2006-02-23 Zf Friedrichshafen Ag Getriebe, insbesondere zum Antrieb einer Trommel eines Fahrmischers
DE102005012823A1 (de) * 2005-03-17 2006-09-21 Zf Friedrichshafen Ag Antrieb für eine Mischtrommel
DE202004020370U1 (de) * 2004-12-01 2005-05-12 Zf Friedrichshafen Ag Antrieb für eine Mischtrommel
KR101239049B1 (ko) * 2005-06-10 2013-03-04 젯트에프 프리드리히스하펜 아게 믹싱 드럼의 각편차를 보상하기 위한 보상 장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3222465A1 (fr) * 2016-03-21 2017-09-27 Liebherr-Mischtechnik GmbH Support de pompe hydraulique destiné à entraîner le tambour mélangeur d'une bétonnière portée

Also Published As

Publication number Publication date
AU2008201718A1 (en) 2008-11-06
ES2417136T3 (es) 2013-08-06
EP1982811B1 (fr) 2013-06-12
CN101288982B (zh) 2012-12-26
CA2628902C (fr) 2012-03-20
EP1982811A3 (fr) 2010-09-22
RU2008115414A (ru) 2009-10-27
DE102007018776A1 (de) 2008-10-23
US20080291772A1 (en) 2008-11-27
RU2376134C1 (ru) 2009-12-20
US8641262B2 (en) 2014-02-04
CA2628902A1 (fr) 2008-10-20
AU2008201718B2 (en) 2011-05-12
CN101288982A (zh) 2008-10-22

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