EP0695613A1 - Mélangeur à bac annulaire avec agitateurs entraînés - Google Patents

Mélangeur à bac annulaire avec agitateurs entraînés Download PDF

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Publication number
EP0695613A1
EP0695613A1 EP95108935A EP95108935A EP0695613A1 EP 0695613 A1 EP0695613 A1 EP 0695613A1 EP 95108935 A EP95108935 A EP 95108935A EP 95108935 A EP95108935 A EP 95108935A EP 0695613 A1 EP0695613 A1 EP 0695613A1
Authority
EP
European Patent Office
Prior art keywords
shaft
trough
mixer
ring
shaped part
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
EP95108935A
Other languages
German (de)
English (en)
Other versions
EP0695613B1 (fr
Inventor
Alfred Schweizer
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 EP0695613A1 publication Critical patent/EP0695613A1/fr
Application granted granted Critical
Publication of EP0695613B1 publication Critical patent/EP0695613B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
    • B28C5/163—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis in annularly-shaped containers
    • B28C5/165—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis in annularly-shaped containers with stirrers having planetary motion

Definitions

  • the invention relates to a ring trough compulsory mixer, consisting of a trough with a central dome-shaped part in which the mixer shaft driven by an agitator motor is mounted in the center, from a hub-shaped part which is connected in a rotationally fixed manner to the upper end of the mixer shaft and on which a plurality of mixing-blade-bearing arms are arranged pass through the annular channel formed between the outer support wall and the dome-shaped part, and from a radial arm which can be connected to the hub-shaped part and which carries a vortex at its outer end region, the vortex shaft running parallel to the agitator shaft being provided with a rotary drive.
  • the rotary drive of the vortex shaft consists of a hydraulic motor which is driven by a separate hydraulic pump with servo adjustment and, depending on the mixing recipe, can be steplessly controlled between 0 and 200 rpm.
  • This hydraulic drive of the swirling shaft is not only complex because of the required hydraulic motor with the associated hydraulic pump, but it is also made more expensive by the required rotating union.
  • the object of the invention is therefore to provide a ring trough compulsory mixer of the type specified at the outset, which is provided with a less expensive drive for the vortex.
  • this object is achieved in a ring trough compulsory mixer of the generic type in that a flat housing enclosing a radial arm can be connected to the hub-shaped part, in the central part of which a central shaft aligned with the agitator shaft is mounted, onto which a central gearwheel is wedged in a rotationally fixed manner is and whose shaft end led out of the housing is supported by a torque support with respect to the trough, and that in the arm-shaped part of the housing at least one pinion is mounted, which transmits the drive from the central gear to the swirler and with one wedged onto the swirler shaft Gear meshes.
  • the drive according to the invention is characterized by great robustness and economy, since it does not require an additional drive motor, but is derived from the agitator drive via the gear means. Ring trough mixers which are already in operation and without a vortex can also be easily retrofitted with the vortex according to the invention.
  • a ring trough compulsory mixer is known from DE 31 14 477 C1, in which the drive of the vortex is derived from the mixer drive via spur gear stages.
  • this known ring trough compulsory mixer has an elaborate construction in that a gear provided with a gear housing is used in the interior of the ring trough and a gear rim provided with an internal toothing is arranged trough-proof in the space between the gear housing and the inner wall of the trough, with which to derive the vortex drive a gear meshes, which is placed on a pinion of the spur gear shaft that passes through the bottom plate of the rotor housing of the ring trough positive mixer.
  • the flat housing can have two swivel-bearing arms.
  • a gear chain consisting of spur gears is mounted in one of the arms, which has one pinion more than the gear chain of the other arm, so that the whirlers can rotate in opposite directions and thereby achieve an even better mixing effect.
  • a sprocket is provided instead of the central gear, which drives the vortex shaft by means of a chain via a sprocket placed thereon.
  • the hub-shaped part expediently has an upper, flat, annular edge, with the end face of which the lower wall of the central part of the flat housing can be screwed.
  • the vortex shaft can be mounted in a bearing tube connected to the arm, which enables good encapsulation.
  • the vortexes are attached to a ring which is freely rotatably mounted on the end of the vortex shaft and is held in a rotationally fixed manner with respect to the vortex shaft by shear pins. If the vortex is blocked by stones or other resistances in the mix, damage to the ring trough compulsory mixer is avoided by shearing off the shear pins and stopping the vortex despite the continued rotation of the vortex shaft.
  • the torque support expediently consists of a radial lever which is connected to the shaft of the central gear wheel in a manner fixed against relative rotation, the outer end of which is supported by springs with respect to the trough.
  • This resilient support which is preferably provided in both directions of rotation, makes it possible to absorb and dampen any impacts that occur in an elastic manner.
  • the shaft of the central gearwheel is coupled to the output shaft of a geared or hydraulic motor that is supported with respect to the trough.
  • This motor allows an additional rotation to be transmitted to the central gearwheel, which gives the whirlers a different speed than is otherwise specified by the coupling of the whirler housing with the mixer shaft.
  • the speed of the motor is expediently controllable, so that the desired speeds of the swirlers can be set on the basis of the swirlers coming to a standstill.
  • the motor can expediently also be reversed in the direction of rotation.
  • the ring trough compulsory mixer (1) shown in FIG. 1 consists of a trough (2) with a cylindrical outer wall (3) in the exemplary embodiment shown and a flat circular disk-shaped base (4) which is supported on the base via support feet (5).
  • the trough (2) has a dome-shaped part (3) with a cylindrical peripheral wall (6), the lower edge of which is connected to the circular disk-shaped base (4).
  • the dome-shaped part is closed by an upper cover wall (7) with a central circular opening is provided, through which the mixer shaft (8) is guided, which is sealed by a seal (9) against the top wall (7) and is coupled to the output shaft of a geared motor (10) which is rotatably connected to the cylindrical by brackets (11) Wall (6) of the cathedral is connected.
  • a hub-shaped part (12) is wedged onto the agitator shaft (8), which is sealed against the cylindrical wall part (6) and has angled arms (13) distributed over its circumference, at the ends of which mixing blades (14) brushing over the bottom of the ring trough. are arranged ..
  • the lower wall (16) of a flat housing (17) is screwed to the hub-shaped part (12), in the middle part of which a shaft (18) is mounted in alignment with the mixer shaft (8), which leads out of the housing upwards and is sealed against this.
  • the shaft (18) has at its lower end a central gear (20) which meshes with pinions (21 and 22, 23) mounted on both sides of the same on a common diameter line, which pinions (24, 25) of the vortex shafts (26, 27) drive.
  • the shaft (18) is rotatably connected to a radial torque arm consisting of a radial lever (29), the free end of which is supported by pressure springs (30) on trough-resistant abutments (31).
  • the upper end of the shaft (18) can be coupled instead of the torque arm (29) to the output shaft of a gear motor (33) which is controllable in its speed and reversible in the direction of rotation and which is also held trough-proof by carriers (not shown).
  • FIG. 3 of another embodiment of the ring trough compulsory mixer basically corresponds the embodiment of FIG. 1, so that the same reference numerals are used for the same parts.
  • the vortex shafts (26, 27) are supported in bearing tubes (37) by roller bearings.
  • discs (38, 39) are rotatably mounted, which delimit a circumferential annular groove between them, in which an annular disc (40) is freely rotatably mounted, which is provided with an outer flange (41) which is screwed to a ring (43) carrying the swirl elements (42).
EP95108935A 1994-08-05 1995-06-09 Mélangeur à bac annulaire avec agitateurs entraínés Expired - Lifetime EP0695613B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9412699U 1994-08-05
DE9412699U DE9412699U1 (de) 1994-08-05 1994-08-05 Ringtragzwangsmischer

Publications (2)

Publication Number Publication Date
EP0695613A1 true EP0695613A1 (fr) 1996-02-07
EP0695613B1 EP0695613B1 (fr) 1998-10-07

Family

ID=6912084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95108935A Expired - Lifetime EP0695613B1 (fr) 1994-08-05 1995-06-09 Mélangeur à bac annulaire avec agitateurs entraínés

Country Status (5)

Country Link
EP (1) EP0695613B1 (fr)
AT (1) ATE171890T1 (fr)
DE (2) DE9412699U1 (fr)
DK (1) DK0695613T3 (fr)
ES (1) ES2124934T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29619681U1 (de) * 1996-11-12 1997-02-20 Liebherr Mischtechnik Gmbh Ringtrogzwangsmischer
EP0925891A1 (fr) * 1997-12-24 1999-06-30 Liebherr-Mischtechnik GmbH Mélangeur à auge annulaire
CN105328791A (zh) * 2015-11-05 2016-02-17 芜湖赛特施工设备有限公司 一种水泥搅拌装置
CN108127792A (zh) * 2018-02-23 2018-06-08 淄博名堂教育科技有限公司 一种联动式砂浆搅拌装置
CN108748680A (zh) * 2018-06-15 2018-11-06 怀宁弘立混凝土有限公司 一种混凝土精加工混料搅拌机

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9212779B2 (en) 2010-11-29 2015-12-15 Lincoln Industrial Corporation Pump having diagnostic system
US9222618B2 (en) 2010-11-29 2015-12-29 Lincoln Industrial Corporation Stepper motor driving a lubrication pump providing uninterrupted lubricant flow
US9388940B2 (en) 2010-11-29 2016-07-12 Lincoln Industrial Corporation Variable speed stepper motor driving a lubrication pump system
US8915331B2 (en) 2011-09-29 2014-12-23 Lincoln Industrial Corporation Battery powered, handheld lubrication gun with display
US9086186B2 (en) 2011-10-14 2015-07-21 Lincoln Industrial Corporation System having removable lubricant reservoir and lubricant refilling station
US9140246B2 (en) 2012-03-19 2015-09-22 Lincoln Industrial Corporation Lance pump having vertically mounted stepper motor
US9239044B2 (en) 2012-03-19 2016-01-19 Lincoln Industrial Corporation Lance pump having horizontally mounted stepper/servo motor
US8978825B2 (en) 2012-04-19 2015-03-17 Lincoln Industrial Corporation Dual-line pump unit, lubrication system, and related apparatus and method
US9127809B2 (en) * 2012-04-19 2015-09-08 Lincoln Industrial Corporation Multi-chamber pump system
DE102018109175A1 (de) * 2018-04-18 2019-10-24 Liebherr-Mischtechnik Gmbh Ringtrogmischer

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB406066A (en) * 1932-09-09 1934-02-22 Winget Ltd Improvements relating to rotary crushing and mixing mills
US2237957A (en) * 1939-06-22 1941-04-08 Herbert S Simpson Agitator muller
DE801619C (de) * 1948-10-02 1951-02-08 Karl Gebl Mischer fuer Baustoffe
FR1394217A (fr) * 1964-02-11 1965-04-02 Brev Calad Soc D Expl Des Perfectionnements aux mélangeurs planétaires, notamment pour l'industrie
DE3114477C1 (de) 1981-04-10 1982-11-04 Walter Stahl Ringtrogzwangsmischer
WO1983000101A1 (fr) * 1981-07-04 1983-01-20 Dieter Kupka Procede de commande de melange
EP0096136A1 (fr) * 1982-06-04 1983-12-21 COUVROT LAINE & Cie Société Anonyme Malaxeur à cuve fixe
GB2153696A (en) * 1984-02-10 1985-08-29 Croker Ltd Improvements in mixing machines
EP0214704A1 (fr) * 1985-09-12 1987-03-18 Stork Friesland B.V. Appareil pour traiter, en particulier un appareil de mélange et de distribution dans une machine pour drainer et mesurer le caillé pendant la préparation du fromage et une machine pour mesurer le caillé équipée d'un tel appareil
US4697929A (en) * 1986-10-28 1987-10-06 Charles Ross & Son Company Planetary mixers
WO1990000930A1 (fr) * 1988-07-19 1990-02-08 Skako A/S Procede et appareil de melange de materiaux
DE9100412U1 (fr) * 1991-01-15 1991-04-04 Kniele, Harald, 7952 Bad Buchau, De
EP0508962A1 (fr) * 1991-04-09 1992-10-14 OFFICINE PICCINI S.p.A. Unité de réduction pour mélangeur du type roue de champ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3518961A1 (de) * 1985-05-25 1986-11-27 Pemat-Baumaschinen GmbH, 6721 Freisbach Ringtrog-zwangsmischer
DE3624832A1 (de) * 1986-07-23 1988-01-28 Teka Maschinenbau Gmbh Vorrichtung zum antreiben eines zwangsmischers
DE4100928A1 (de) * 1991-01-15 1992-07-16 Harald Kniele Ruehrwerk fuer eine mischmaschine

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB406066A (en) * 1932-09-09 1934-02-22 Winget Ltd Improvements relating to rotary crushing and mixing mills
US2237957A (en) * 1939-06-22 1941-04-08 Herbert S Simpson Agitator muller
DE801619C (de) * 1948-10-02 1951-02-08 Karl Gebl Mischer fuer Baustoffe
FR1394217A (fr) * 1964-02-11 1965-04-02 Brev Calad Soc D Expl Des Perfectionnements aux mélangeurs planétaires, notamment pour l'industrie
DE3114477C1 (de) 1981-04-10 1982-11-04 Walter Stahl Ringtrogzwangsmischer
WO1983000101A1 (fr) * 1981-07-04 1983-01-20 Dieter Kupka Procede de commande de melange
EP0096136A1 (fr) * 1982-06-04 1983-12-21 COUVROT LAINE & Cie Société Anonyme Malaxeur à cuve fixe
GB2153696A (en) * 1984-02-10 1985-08-29 Croker Ltd Improvements in mixing machines
EP0214704A1 (fr) * 1985-09-12 1987-03-18 Stork Friesland B.V. Appareil pour traiter, en particulier un appareil de mélange et de distribution dans une machine pour drainer et mesurer le caillé pendant la préparation du fromage et une machine pour mesurer le caillé équipée d'un tel appareil
US4697929A (en) * 1986-10-28 1987-10-06 Charles Ross & Son Company Planetary mixers
WO1990000930A1 (fr) * 1988-07-19 1990-02-08 Skako A/S Procede et appareil de melange de materiaux
DE9100412U1 (fr) * 1991-01-15 1991-04-04 Kniele, Harald, 7952 Bad Buchau, De
EP0508962A1 (fr) * 1991-04-09 1992-10-14 OFFICINE PICCINI S.p.A. Unité de réduction pour mélangeur du type roue de champ

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29619681U1 (de) * 1996-11-12 1997-02-20 Liebherr Mischtechnik Gmbh Ringtrogzwangsmischer
EP0925891A1 (fr) * 1997-12-24 1999-06-30 Liebherr-Mischtechnik GmbH Mélangeur à auge annulaire
CN105328791A (zh) * 2015-11-05 2016-02-17 芜湖赛特施工设备有限公司 一种水泥搅拌装置
CN105328791B (zh) * 2015-11-05 2017-10-31 泰州市维华混凝土有限公司 一种水泥搅拌装置
CN108127792A (zh) * 2018-02-23 2018-06-08 淄博名堂教育科技有限公司 一种联动式砂浆搅拌装置
CN108748680A (zh) * 2018-06-15 2018-11-06 怀宁弘立混凝土有限公司 一种混凝土精加工混料搅拌机

Also Published As

Publication number Publication date
ES2124934T3 (es) 1999-02-16
EP0695613B1 (fr) 1998-10-07
ATE171890T1 (de) 1998-10-15
DE59503837D1 (de) 1998-11-12
DE9412699U1 (de) 1995-12-07
DK0695613T3 (da) 1999-06-21

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