EP1528182B1 - machine for building materials, particularly a mortar spray machine - Google Patents
machine for building materials, particularly a mortar spray machine Download PDFInfo
- Publication number
- EP1528182B1 EP1528182B1 EP04025463A EP04025463A EP1528182B1 EP 1528182 B1 EP1528182 B1 EP 1528182B1 EP 04025463 A EP04025463 A EP 04025463A EP 04025463 A EP04025463 A EP 04025463A EP 1528182 B1 EP1528182 B1 EP 1528182B1
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- EP
- European Patent Office
- Prior art keywords
- opening
- mixing container
- hinged lid
- construction machine
- machine according
- 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.)
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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
- B28C5/08—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
- B28C5/1223—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 discontinuously operating mixing devices, e.g. with consecutive containers
- B28C5/123—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 discontinuously operating mixing devices, e.g. with consecutive containers with pressure or suction means for discharging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/181—Preventing generation of dust or dirt; Sieves; Filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
- B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
- B01F35/75455—Discharge mechanisms characterised by the means for discharging the components from the mixer using a rotary discharge means, e.g. a screw beneath the receptacle
- B01F35/754551—Discharge mechanisms characterised by the means for discharging the components from the mixer using a rotary discharge means, e.g. a screw beneath the receptacle using helical screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
- B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
- B01F35/7548—Discharge mechanisms characterised by the means for discharging the components from the mixer using tilting or pivoting means for emptying the mixing receptacle
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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
- B28C5/14—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 horizontal or substantially horizontal axis
- B28C5/141—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 horizontal or substantially horizontal axis with container tiltable or elevatable for emptying
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/06—Implements for applying plaster, insulating material, or the like
- E04F21/08—Mechanical implements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/06—Implements for applying plaster, insulating material, or the like
- E04F21/08—Mechanical implements
- E04F21/12—Mechanical implements acting by gas pressure, e.g. steam pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
Definitions
- the prior art relates to a construction machine, in particular a mortar molding machine, with a frame-fixed material funnel, with a about a frame-fixed horizontal tilt axis between a lowered loading and mixing position and a raised discharge position pivotable mixing container and with a about a horizontal pivot axis between a closed position and an open position pivotable relative to a container opening of the mixing container, a Einphilllgitter having hinged lid, wherein between the hinged lid and a bulkhead of the container opening in the emptying position with a filling opening of the material funnel communicating and arranged with the pouring edge in this emptying discharge opening, as in the document WO-A-03/037507 is disclosed.
- a special feature of many machines of this type is that the powdered mortar is first mixed in the mixing container with water and thereby processed into a processible wet material.
- the transfer of the wet material from the mixing container into the material hopper takes place in the case of the reciprocating mixer in that the mixing container is lifted and thereby tilted or rotated.
- the mixing container also contains a lid, which must be raised for cleaning and maintenance purposes.
- This cover is arranged in known mortar spraying machines about an axis parallel to the tilting axis of the stroke mixer pivotally mounted on the mixing container.
- a grid cover is provided which is intended to prevent Hineincati in the agitator located there.
- the wet material was previously poured from the mixing container through the grid in the material hopper. This has the disadvantage that the grid is contaminated by curing wet material on the bars.
- the present invention seeks to improve the known construction machine of the type described in that the mixing container can be emptied without risk of contamination and that remain in the lowered feed position of the mixing container, the transfer openings between the mixing container and the material hopper.
- the solution according to the invention is based primarily on the idea that a cover device is arranged between the mixing container and the material funnel, which closes the emptying opening and the filling opening to the outside when the mixing container is lowered and releases the passage between the emptying opening and the filling opening when the mixing container is raised. Further, according to an advantageous embodiment of the invention, it is provided that the cover device closes the emptying opening when the mixing container is lowered and the hinged lid is closed, and releases the emptying opening when the hinged lid is open. To achieve this, it is provided according to a preferred or alternative embodiment of the invention that the tilting axis of the mixing container and the pivot axis of the hinged lid coincide.
- a preferred embodiment of the invention provides that the covering comprises two cover members, of which a first on the hinged lid of the mixing container at a distance from the bulk edge and a second on Material funnel is articulated at a distance from the hopper facing the mixing container, wherein the cover members are hingedly connected to each other on their sides facing each other on a hinge axis parallel to the two other hinge axes and the pivot axis of the mixing tank joint axis.
- the cover members preferably have two coupling pieces mounted in pairs on two joint axes and one cover sheet each extending between the pairs of mutually associated coupling pieces.
- the pouring edge is formed by the rear opening edge of the mixing container and the discharge opening extends between the pouring edge and the rear hinged lid edge arranged at a distance therefrom.
- a further advantageous embodiment of the invention provides that the material funnel next to the filling opening has a funnel opening, which is overlapped by a pivoting grid.
- the pivoting grid is pivotable about a pivot axis relative to the hopper opening, which coincides with the material hopper side hinge axis of the second cover member.
- a preferred embodiment of the invention provides that in the interior of the hinged lid at a distance from the filling grid and from the discharge opening with a suction opening into the container interior and with an outlet opening through a top wall outwardly guided valve tube is arranged with the lowered mixing container and closed hinged lid Compressed air can be acted upon.
- the suction opening is according to the invention, therefore, above all in operation when at the same time the covering is closed to the material hopper.
- a compressed air pipe arranged inside the lid is connected to the inlet opening of the Venturi tube, which communicates with closed mixing container and hinged lid with a frame-fixed, acted upon with compressed air connection opening and is separated from the connection opening with raised mixing container and / or open hinged lid.
- the pressure outlet of a compressed air generator or blower arranged outside the hinged lid preferably in an engine compartment, can be connected to the connection opening.
- the outlet opening of the venturi can be connected to a dust trap, in particular a filter element or a liquid bath.
- the venturi expediently has a centrifugal separator for separating dust from the compressed air flow.
- the construction machines shown in the drawings are mobile mortar spraying machines designed as trailers for a motor vehicle.
- the mortar spraying machines have a chassis 10 with a wheel axle 12, a drawbar 14 and a telescoping support leg 16.
- the mortar spraying machines comprise a chassis-fixed material hopper 18, one at the material hopper about a tilt axis 20 between a lowered filling and mixing position ( Fig. 1 a) and a raised emptying position ( Fig. 1 b) pivotable mixing container 22 and a projecting in the lower region of the material hopper 18 screw pump 24 for the mix.
- the material hopper 18 is overlapped in the region of its opening by a metal grid 36 which is pivotable about an axis 38. In the bottom area of the material hopper 18 there is also a motor-driven conveyor spiral, which conveys the wet material reaching the material hopper to the screw pump 24.
- the drive motor for the various motor-driven drive units is located in the engine compartment 40 in the rear area of the chassis. There is also a motor-driven compressor for generating the required for spraying the wet mortar compressed air.
- a special feature of the invention is that between the mixing container 22 and the material hopper 18, a cover 44 is arranged, which ensures that formed between the pouring edge 46 of the mixing container and the rear edge 48 of the hinged lid 28 emptying opening 50 and the outside of the cover grid 36 arranged in the opening region of the material hopper 18 filling opening is covered with lowered mixing container to the outside and with raised mixing container a passage between discharge opening 50 and filling opening 52 releases.
- the cover device 44 comprises two cover members 54, 56.
- the first cover member 54 is hinged at the rear end of the hinged lid 28 at a spaced from the bulk edge of the mixing container 22 joint 58.
- the second cover member 56 is hinged to the material hopper 18 at a distance from the mixing container 22 facing funnel edge 60 at a hinge 62.
- the cover members 54, 56 are connected at their sides facing each other on a to the other two hinge axes 58, 62 and the tilt axis 20 parallel hinge axis 64 with each other. As in particular from Fig.
- the cover members 54, 56 each have two outside, in pairs on each of the joint axes 58, 62, 64 mounted coupling pieces 66, 68 and each one between the paired mutually associated coupling pieces 66, 68 extending cover plate 70, 72.
- the kinematics of the cover 44 can be particularly well in the figures 2a to 2e in conjunction with Fig. 3a to 3e detect.
- the two cover members 54, 56 In the lowered position of the mixing container 22 are the two cover members 54, 56 via the associated emptying and filling openings 50, 52. In this position, the two cover members 54, 56 are only slightly angled against each other.
- the first cover member 54 When tilting the mixing container 22 about its tilting axis 20, the first cover member 54 is first raised, while the second Cover member is lowered relative to its initial position.
- the first cover member 54 exceeds a dead center (between Fig. 2b and 2c ) and is then lowered in the further course together with the cover member 56 into the material hopper 18.
- the second cover member 56 remains almost in its position, while the first cover member 54 is further pivoted into the material hopper ( Fig. 2e ).
- the mixing container engages with its pouring edge 46 and with the rear hinged lid edge 48 in the material hopper, so that the mix contained in the mixing container 22 can pass freely through the filling opening 52 into the material hopper 18.
- the mixing container 22 is lowered again in the opposite direction.
- the mixing container is appropriate in accordance with its lowered position Fig. 1a ,
- a dust extraction device 74 is additionally provided, which is intended to suck the dust accumulating during the filling of dry mortar in the mixing container 22 and the mixing process in the mixing container to the outside.
- a Venturi tube 76 is arranged in the interior of the hinged lid 28 at a distance from the filler grid 30, which has a suction opening 78 into the container interior and is guided with an outlet opening 80 through a cover wall 82 to the outside.
- the Venturi tube 76 can be acted upon by a compressed air pipe 84 arranged in the interior of the lid when the mixing container 22 is lowered and the hinged lid 28 is closed.
- the compressed air pipe has for this purpose on a further top wall 86 on the hinged lid 28 outwardly projecting pipe socket 88 which carries a rubber existing connector 90 with which he communicates with lowered mixing container and closed hinged lid with a frame-fixed port opening 92 and raised Mixing container and / or open hinged lid is separated from the connection opening 92.
- On its back is the connection opening 92 connected to the pressure outlet of a blower.
- the outlet opening 80 of the Venturi tube 76 carries a dust trap 94, which contains a filter element for receiving the incoming dust particles in the embodiment shown.
- the venturi can be equipped with a centrifugal separator, not shown, for the separation of dust from the compressed air flow.
- the invention relates to a construction machine, which may be formed for example as a mortar spraying machine.
- the construction machine has a frame-fixed material funnel 18 and a mixing container 22.
- the mixing container 22 is pivotable about a frame-fixed horizontal tilting axis 20 between a lowered loading and mixing position and a raised emptying position relative to the material hopper 18.
- the mixing container 22 has a hinged lid 28 which is pivotable about a coincident with the tilting axis 20 of the mixing container axis between a closed position and an open position relative to a container opening of the mixing container 22.
- a special feature of the invention is that between the mixing container 22 and the material hopper 18, a cover 44 is arranged, the emptying of the mixing container covers a discharge opening of the mixing container and a feed opening of the material hopper to the outside and with raised mixing container the passage between the emptying opening 50 and filling opening 52nd releases.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Road Paving Machines (AREA)
Abstract
Description
Der Stand der Technik betrifft eine Baumaschine, insbesondere eine Mörtelspritzmaschine, mit einem gestellfesten Materialtrichter, mit einem um eine gestellfeste horizontale Kippachse zwischen einer abgesenkten Beschickungs- und Mischposition und einer angehobenen Entleerungsposition verschwenkbaren Mischbehälter und mit einem um eine horizontale Schwenkachse zwischen einer Schließstellung und einer Offenstellung gegenüber einer Behälteröffnung des Mischbehälters verschwenkbaren, ein Einfüllgitter aufweisenden Klappdeckel, wobei zwischen dem Klappdeckel und einer Schüttkante der Behälteröffnung eine in der Entleerungsposition mit einer Einfüllöffnung des Materialtrichters kommunizierende und mit der Schüttkante in diese eintauchende Entleerungsöffnung angeordnet ist, wie im Dokument
Eine Besonderheit vieler Maschinen dieser Art besteht darin, dass der pulverförmige Mörtel zunächst in dem Mischbehälter mit Wasser vermischt und dabei zu einem verarbeitbaren Nassmaterial verarbeitet wird. Die Übergabe des Nassmaterials vom Mischbehälter in den Materialtrichter erfolgt im Falle des Hubmischers dadurch, dass der Mischbehälter angehoben und dabei gekippt oder gedreht wird. Der Mischbehälter enthält außerdem einen Deckel, der zu Reinigungs- und Wartungszwecken angehoben werden muss. Dieser Deckel ist bei bekannten Mörtelspritzmaschinen um eine zur Kippachse des Hubmischers parallele Achse schwenkbar am Mischbehälter angeordnet. Auch auf der Seite des Materialtrichters ist üblicherweise eine Gitterabdeckung vorgesehen, die ein Hineinfassen in das dort befindliche Rührwerk verhindern soll. Beim Entleerungsvorgang wurde das Nassmaterial bisher vom Mischbehälter aus durch das Gitter in den Materialtrichter gegossen. Dies hat den Nachteil, dass das Gitter durch Aushärten von Nassmaterial an den Gitterstäben verschmutzt wird.A special feature of many machines of this type is that the powdered mortar is first mixed in the mixing container with water and thereby processed into a processible wet material. The transfer of the wet material from the mixing container into the material hopper takes place in the case of the reciprocating mixer in that the mixing container is lifted and thereby tilted or rotated. The mixing container also contains a lid, which must be raised for cleaning and maintenance purposes. This cover is arranged in known mortar spraying machines about an axis parallel to the tilting axis of the stroke mixer pivotally mounted on the mixing container. Also on the side of the material funnel usually a grid cover is provided which is intended to prevent Hineinfassen in the agitator located there. During the emptying process, the wet material was previously poured from the mixing container through the grid in the material hopper. This has the disadvantage that the grid is contaminated by curing wet material on the bars.
Andererseits ist es zweckmäßig, dass beim Einfüllen des Trockenmaterials in den Mischbehälter und beim Mischvorgang die Übergabeöffnungen zwischen Mischbehälter und Materialtrichter verschlossen sind.On the other hand, it is expedient that when transferring the dry material into the mixing container and during the mixing process, the transfer openings between mixing container and material funnel are closed.
Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, die bekannte Baumaschine der eingangs angegebenen Art dahingehend zu verbessern, dass der Mischbehälter ohne Verschmutzungsgefahr entleert werden kann und dass in der abgesenkten Beschickungsposition des Mischbehälters die Übergabeöffnungen zwischen dem Mischbehälter und dem Materialtrichter abgedeckt bleiben.Proceeding from this, the present invention seeks to improve the known construction machine of the type described in that the mixing container can be emptied without risk of contamination and that remain in the lowered feed position of the mixing container, the transfer openings between the mixing container and the material hopper.
Zur Lösung dieser Aufgabe wird die im Patentanspruch 1 angegebene Merkmalskombination vorgeschlagen. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.To solve this problem, the feature combination specified in claim 1 is proposed. Advantageous embodiments and modifications of the invention will become apparent from the dependent claims.
Der erfindungsgemäßen Lösung liegt vor allem der Gedanke zugrunde, dass zwischen Mischbehälter und Materialtrichter eine Abdeckvorrichtung angeordnet ist, die bei abgesenktem Mischbehälter die Entleerungsöffnung und die Einfüllöffnung nach außen verschließt und bei angehobenem Mischbehälter den Durchgang zwischen Entleerungsöffnung und Einfüllöffnung freigibt. Weiter ist gemäß einer vorteilhaften Ausgestaltung der Erfindung vorgesehen, dass die Abdeckvorrichtung bei abgesenktem Mischbehälter und verschlossenem Klappdeckel die Entleerungsöffnung verschließt und bei offenem Klappdeckel die Entleerungsöffnung freigibt. Um dies zu erreichen, ist gemäß einer bevorzugten oder alternativen Ausgestaltung der Erfindung vorgesehen, dass die Kippachse des Mischbehälters und die Schwenkachse des Klappdeckels zusammenfallen.The solution according to the invention is based primarily on the idea that a cover device is arranged between the mixing container and the material funnel, which closes the emptying opening and the filling opening to the outside when the mixing container is lowered and releases the passage between the emptying opening and the filling opening when the mixing container is raised. Further, according to an advantageous embodiment of the invention, it is provided that the cover device closes the emptying opening when the mixing container is lowered and the hinged lid is closed, and releases the emptying opening when the hinged lid is open. To achieve this, it is provided according to a preferred or alternative embodiment of the invention that the tilting axis of the mixing container and the pivot axis of the hinged lid coincide.
Eine bevorzugte Ausgestaltung der Erfindung sieht vor, dass die Abdeckvorrichtung zwei Abdeckglieder umfasst, von denen ein erstes am Klappdeckel des Mischbehälters im Abstand von dessen Schüttkante und ein zweites am Materialtrichter im Abstand von der dem Mischbehälter zugewandten Trichterkante angelenkt ist, wobei die Abdeckglieder an ihren einander zugewandten Seiten an einer zu den beiden anderen Gelenkachsen und zur Schwenkachse des Mischbehälters parallel ausgerichteten Gelenkachse gelenkig miteinander verbunden sind.A preferred embodiment of the invention provides that the covering comprises two cover members, of which a first on the hinged lid of the mixing container at a distance from the bulk edge and a second on Material funnel is articulated at a distance from the hopper facing the mixing container, wherein the cover members are hingedly connected to each other on their sides facing each other on a hinge axis parallel to the two other hinge axes and the pivot axis of the mixing tank joint axis.
Bevorzugt weisen die Abdeckglieder zwei paarweise an jeweils zwei Gelenkachsen gelagerte Koppelstücke sowie je ein sich zwischen den paarweise einander zugeordneten Koppelstücken erstreckendes Abdeckblech auf.The cover members preferably have two coupling pieces mounted in pairs on two joint axes and one cover sheet each extending between the pairs of mutually associated coupling pieces.
Als besonders vorteilhaft hat es sich erwiesen, wenn die Schüttkante durch die rückwärtige Öffnungskante des Mischbehälters gebildet ist und die Entleerungsöffnung sich zwischen der Schüttkante und der im Abstand von dieser angeordneten rückwärtigen Klappdeckelkante erstreckt.It has proved to be particularly advantageous if the pouring edge is formed by the rear opening edge of the mixing container and the discharge opening extends between the pouring edge and the rear hinged lid edge arranged at a distance therefrom.
Eine weitere vorteilhafte Ausgestaltung der Erfindung sieht vor, dass der Materialtrichter neben der Einfüllöffnung eine Trichteröffnung aufweist, die von einem Schwenkgitter übergriffen ist. Zweckmäßig ist das Schwenkgitter um eine Schwenkachse gegenüber der Trichteröffnung verschwenkbar, die mit der materialtrichterseitigen Gelenkachse des zweiten Abdeckgliedes zusammenfällt.A further advantageous embodiment of the invention provides that the material funnel next to the filling opening has a funnel opening, which is overlapped by a pivoting grid. Suitably, the pivoting grid is pivotable about a pivot axis relative to the hopper opening, which coincides with the material hopper side hinge axis of the second cover member.
Eine bevorzugte Ausgestaltung der Erfindung sieht vor, dass im Inneren des Klappdeckels im Abstand vom Einfüllgitter und von der Entleerungsöffnung ein mit einer Ansaugöffnung ins Behälterinnere weisendes und mit einer Austrittsöffnung durch eine Deckelwand nach außen geführtes Ventilrohr angeordnet ist, das bei abgesenktem Mischbehälter und geschlossenem Klappdeckel mit Druckluft beaufschlagbar ist. Die Ansaugöffnung ist gemäß der Erfindung also vor allem dann in Betrieb, wenn zugleich die Abdeckvorrichtung zum Materialtrichter hin verschlossen ist.A preferred embodiment of the invention provides that in the interior of the hinged lid at a distance from the filling grid and from the discharge opening with a suction opening into the container interior and with an outlet opening through a top wall outwardly guided valve tube is arranged with the lowered mixing container and closed hinged lid Compressed air can be acted upon. The suction opening is according to the invention, therefore, above all in operation when at the same time the covering is closed to the material hopper.
Vorteilhafterweise ist an die Eingangsöffnung des Venturirohrs ein im Deckelinneren angeordnetes Druckluftrohr angeschlossen, das bei geschlossenem Mischbehälter und Klappdeckel mit einer gestellfesten, mit Druckluft beaufschlagten Anschlussöffnung kommuniziert und bei angehobenem Mischbehälter und/oder offenem Klappdeckel von der Anschlussöffnung getrennt ist. An die Anschlussöffnung kann dabei der Druckausgang eines außerhalb des Klappdeckels vorzugsweise in einem Motorraum angeordneten Drucklufterzeugers oder Gebläses angeschlossen sein. Andererseits kann die Austrittsöffnung des Venturirohrs an eine Staubfalle, insbesondere ein Filterelement oder ein Flüssigkeitsbad angeschlossen sein. Um eine besonders wirksame Staubabtrennung herbeiführen zu können, weist das Venturirohr zweckmäßig einen Zentrifugalabscheider zur Abtrennung von Staub aus dem Druckluftstrom auf.Advantageously, a compressed air pipe arranged inside the lid is connected to the inlet opening of the Venturi tube, which communicates with closed mixing container and hinged lid with a frame-fixed, acted upon with compressed air connection opening and is separated from the connection opening with raised mixing container and / or open hinged lid. In this case, the pressure outlet of a compressed air generator or blower arranged outside the hinged lid, preferably in an engine compartment, can be connected to the connection opening. On the other hand, the outlet opening of the venturi can be connected to a dust trap, in particular a filter element or a liquid bath. In order to bring about a particularly effective dust separation, the venturi expediently has a centrifugal separator for separating dust from the compressed air flow.
Im Folgenden wird die Erfindung anhand der in der Zeichnung in schematischer Weise dargestellten Ausführungsbeispiele näher erläutert. Es zeigen
- Fig. 1a
- und 1b zwei schaubildliche Darstellungen einer Mörtelspritzmaschine mit Hubmischer in der abgesenkten Einfüll- und Mischposition und in der angehobenen Entleerungsposition;
- Fig. 2a
- bis 2e eine Seitenansicht des Materialtrichters mit angelenktem Mischbehälter in verschiedenen Hubpositionen zwischen der abgesenkten Einfüll- und Mischposition und der angehobenen Entleerungsposition;
- Fig. 3a
- bis 3e den Materialtrichter mit angelenktem Hubmischer in schaubildlicher Darstellung in den Hubpositionen gemäß
Fig. 2a bis 2e ; - Fig. 4a
- und 4b eine Seitenansicht und eine schaubildliche Darstellung des Materialtrichters mit Hubmischer in der abgesenkten Position bei geöffnetem Schwenkgitter der Materialtrichters;
- Fig. 5a
- und b je eine schaubildliche Darstellung einer zum Teil aufgebrochenen Mörtelspritzmaschine mit Staubabsaugeinrichtung bei abgesenktem Hubmischer mit geschlossenem und geöffnetem Klappdeckel.
- Fig. 1a
- and Fig. 1b two diagrammatic views of a mortar spraying machine with a lifting mixer in the lowered filling and mixing position and in the raised emptying position;
- Fig. 2a
- 2e shows a side view of the material hopper with hinged mixing container in different stroke positions between the lowered filling and mixing position and the raised emptying position.
- Fig. 3a
- to 3e the material hopper with articulated lifting mixer in perspective view in the lifting positions according to
Fig. 2a to 2e ; - Fig. 4a
- and FIG. 4b shows a side view and a diagrammatic view of the material hopper with a lifting mixer in the lowered position with the material hopper open;
- Fig. 5a
- and b is a perspective view of a partially broken mortar spraying machine with dust extraction device with lowered lift mixer with closed and opened hinged lid.
Die in den Zeichnungen dargestellten Baumaschinen sind mobile Mörtelspritzmaschinen, die als Anhänger für ein Kraftfahrzeug ausgebildet sind. Die Mörtelspritzmaschinen weisen ein Fahrgestell 10 mit einer Radachse 12, einer Deichsel 14 und einem teleskopierbaren Stützbein 16 auf. Als Arbeitsaggregate umfassen die Mörtelspritzmaschinen einen fahrgestellfesten Materialtrichter 18, einen am Materialtrichter um eine Kippachse 20 zwischen einer abgesenkten Einfüll- und Mischstellung (
Der Materialtrichter 18 ist im Bereich seiner Öffnung von einem Metallgitter 36 übergriffen, das um eine Achse 38 verschwenkbar ist. Im Bodenbereich des Materialtrichters 18 befindet sich außerdem eine motorgetriebene Förderwendel, die das in den Materialtrichter gelangende Nassmaterial zur Schneckenpumpe 24 fördert.The
Der Antriebsmotor für die verschiedenen motorbetriebenen Antriebsaggregate befindet sich im Motorraum 40 im rückwärtigen Bereich des Fahrgestells. Dort befindet sich auch ein vom Motor angetriebener Kompressor zur Erzeugung der zum Anspritzen des Nassmörtels benötigen Druckluft.The drive motor for the various motor-driven drive units is located in the
Eine Besonderheit der Erfindung besteht darin, dass zwischen dem Mischbehälter 22 und dem Materialtrichter 18 eine Abdeckvorrichtung 44 angeordnet ist, die dafür sorgt, dass die zwischen der Schüttkante 46 des Mischbehälters und der rückwärtigen Kante 48 des Klappdeckels 28 ausgebildete Entleerungsöffnung 50 und die außerhalb des Abdeckgitters 36 im Öffnungsbereich des Materialtrichters 18 angeordnete Einfüllöffnung bei abgesenktem Mischbehälter nach außen abgedeckt ist und bei angehobenem Mischbehälter einen Durchgang zwischen Entleerungsöffnung 50 und Einfüllöffnung 52 freigibt.A special feature of the invention is that between the mixing
Die Abdeckvorrichtung 44 umfasst zwei Abdeckglieder 54, 56. Das erste Abdeckglied 54 ist dabei am rückwärtigen Ende des Klappdeckels 28 an einem im Abstand von der Schüttkante des Mischbehälters 22 angeordneten Gelenk 58 angelenkt. Das zweite Abdeckglied 56 ist am Materialtrichter 18 im Abstand von der dem Mischbehälter 22 zugewandten Trichterkante 60 an einem Gelenk 62 angelenkt. Außerdem sind die Abdeckglieder 54, 56 an ihren einander zugewandten Seiten an einer zu den beiden anderen Gelenkachsen 58, 62 und zur Kippachse 20 parallele Gelenkachse 64 miteinander verbunden. Wie insbesondere aus
Die Kinematik der Abdeckvorrichtung 44 lässt sich besonders gut in den Figuren 2a bis 2e in Verbindung mit
Bei den in
Zusammenfassend ist folgendes festzuhalten: Die Erfindung bezieht sich auf eine Baumaschine, die beispielsweise als Mörtelspritzmaschine ausgebildet sein kann. Die Baumaschine weist einen gestellfesten Materialtrichter 18 sowie einen Mischbehälter 22 auf. Der Mischbehälter 22 ist um eine gestellfeste horizontale Kippachse 20 zwischen einer abgesenkten Beschickungs- und Mischposition und einer angehobenen Entleerungsposition gegenüber dem Materialtrichter 18 verschwenkbar. Weiter weist der Mischbehälter 22 einen Klappdeckel 28 auf, der zwischen einer Schließstellung und einer Offenstellung gegenüber einer Behälteröffnung des Mischbehälters 22 um eine mit der Kippachse 20 des Mischbehälters zusammenfallende Achse verschwenkbar ist. Eine Besonderheit der Erfindung besteht darin, dass zwischen dem Mischbehälter 22 und dem Materialtrichter 18 eine Abdeckvorrichtung 44 angeordnet ist, die bei abgesenktem Mischbehälter eine Entleerungsöffnung des Mischbehälters und eine Einfüllöffnung des Materialtrichters nach außen abdeckt und bei angehobenem Mischbehälter den Durchgang zwischen Entleerungsöffnung 50 und Einfüllöffnung 52 freigibt.In summary, the following should be noted: The invention relates to a construction machine, which may be formed for example as a mortar spraying machine. The construction machine has a frame-fixed
Claims (13)
- Construction machine, in particular mortar spraying machine, having a material hopper (18) which is fixed to a frame, having a mixing container (22) which is pivotable about a horizontal tilting axle (20), which is fixed to a frame, between a lowered loading and mixing position and a raised evacuation position, and having a hinged lid (28) which is pivotable about a horizontal pivot axle between a closed position and an open position with respect to a container opening of the mixing container (22) and which has a filling grate (30), with an evacuation opening (50) being arranged between the hinged lid and a pouring edge (46) of the container opening, which evacuation opening (50), in the evacuation position, communicates with a filling opening (52) of the material hopper (18) and protrudes with the pouring edge (46) into said filling opening (52), characterized in that a covering device (44) is arranged between the mixing container (22) and the material hopper (18), which covering device (44) covers the evacuation opening (50) and the filling opening (52) to the outside when the mixing container (22) is lowered, and which covering device (44) opens up the passage between the evacuation opening (50) and filling opening (52) when the mixing container (22) is raised.
- Construction machine according to Claim 1, characterized in that the covering device (44) closes off the evacuation opening (50) when the mixing container (22) is lowered and the hinged lid (28) is closed, and opens up the evacuation opening when the hinged lid is open.
- Construction machine according to Claim 1 or 2, characterized in that the tilting axle (20) of the mixing container (22) and the pivot axle of the hinged lid (28) coincide.
- Construction machine according to one of Claims 1 to 3, characterized in that the covering device (44) comprises two covering members (54, 56), a first of which is articulatedly connected to the hinged lid (28) of the mixing container (22) at a distance from the pouring edge (46) thereof, and a second of which is articulatedly connected to the material hopper (18) at a distance from that hopper edge (60) which faces towards the mixing container (22), with the covering members (54, 56) also being articulatedly connected to one another at their sides, which face towards one another, at a joint axle (64) which runs parallel to the two other joint axes (58, 62) and to the tilting axle (20).
- Construction machine according to Claim 4, characterized in that the covering members (54, 56) have in each case two outer coupling pieces (66, 68), which are mounted in pairs on in each case two joint axles (58, 62, 64), and in each case one covering panel (70, 72) which extends between the coupling pieces which are assigned to one another in pairs.
- Construction machine according to one of Claims 1 to 5, characterized in that the pouring edge (46) is formed by the rear opening edge of the mixing container (22), and in that the evacuation opening (50) extends between the pouring edge (46) and the rear edge (48), which is arranged at a distance from said pouring edge (46), of the hinged lid.
- Construction machine according to one of Claims 1 to 6, characterized in that the material hopper (18) has a hopper opening adjacent to the filling opening (52), with a covering grate (36) engaging over the hopper opening.
- Construction machine according to Claim 7, characterized in that the covering grate (36) is pivotable relative to the hopper opening about a pivot axle (38) which coincides with the material-hopper-side joint axle (62) of the second covering member (56).
- Construction machine according to one of Claims 1 to 8, characterized in that a venturi tube (76) which points with an induction opening (78) into the interior of the container and which is guided with an outlet opening (80) to the outside through a lid wall (82) is arranged in the interior of the hinged lid (28) at a distance from the filling grate (30), which venturi tube is acted on with compressed air when the mixing container (22) is lowered and the hinged lid (28) is closed.
- Construction machine according to Claim 9, characterized in that a compressed-air tube (84) which is arranged in the interior of the lid is connected to the inlet opening of the venturi tube (76), which compressed-air tube (84) communicates with a connecting opening (92), which is fixed to a frame and is acted on with compressed air, when the mixing container (22) is lowered and the hinged lid (28) is closed, and which compressed-air tube (84) is separated from the connecting opening (92) when the mixing container (22) is raised and/or the hinged lid (28) is open.
- Construction machine according to Claim 10, characterized in that the pressure outlet of a compressed-air generator or fan which is arranged outside the hinged lid is connected to the connecting opening (92).
- Construction machine according to one of Claims 9 to 11, characterized in that the outlet opening of the venturi tube (76) is connected to a dust trap (94), in particular a filter element or a liquid bath.
- Construction machine according to one of Claims 9 to 12, characterized in that the venturi tube (76) comprises a centrifugal separator for separating dust out of the compressed-air flow.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10351280A DE10351280A1 (en) | 2003-10-31 | 2003-10-31 | Construction machine, in particular mortar spraying machine |
DE10351280 | 2003-10-31 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1528182A2 EP1528182A2 (en) | 2005-05-04 |
EP1528182A3 EP1528182A3 (en) | 2006-11-08 |
EP1528182B1 true EP1528182B1 (en) | 2009-09-30 |
Family
ID=34399663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04025463A Not-in-force EP1528182B1 (en) | 2003-10-31 | 2004-10-27 | machine for building materials, particularly a mortar spray machine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1528182B1 (en) |
AT (1) | ATE444419T1 (en) |
DE (2) | DE10351280A1 (en) |
ES (1) | ES2330520T3 (en) |
PT (1) | PT1528182E (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100365235C (en) * | 2005-11-16 | 2008-01-30 | 黄修文 | Hand-held electric multifunctional building overlay decorating apparatus |
FR2901503B1 (en) * | 2006-05-24 | 2008-08-01 | Teksped S R L Tecnologia Speci | DEVICE FOR PREPARING A PRODUCT, SUCH AS CONCRETE OR MORTAR |
US7559687B2 (en) * | 2006-10-30 | 2009-07-14 | Stone Construction Equipment, Inc. | Mortar mixing drum assembly |
ITVI20120273A1 (en) * | 2012-10-17 | 2014-04-18 | Revelin Diego Srl | MULTIFUNCTION PLASTER |
DE102013206591A1 (en) * | 2013-04-12 | 2014-10-16 | Putzmeister Mörtelmaschinen GmbH | Mixing and conveying device with tensioning device for a traction mechanism drive |
DE102013206592A1 (en) * | 2013-04-12 | 2014-10-16 | Putzmeister Mörtelmaschinen GmbH | Mixing and conveying device with hydraulic unit |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3236565A (en) * | 1963-12-31 | 1966-02-22 | Phillips Petroleum Co | Dustless pneumatic conveyor and process |
IT1069628B (en) * | 1976-04-09 | 1985-03-25 | Turbosol A I Spa | MACHINE PERFECTED FOR THE PREPARATION AND DISTRIBUTION OF CEMENT MIXTURES FOR PLASTERING OR SIMILAR |
US4211491A (en) * | 1978-11-13 | 1980-07-08 | Quad C Corporation | Covered mixing machine, or the like, and method of loading the same |
DE3119659C2 (en) * | 1981-05-16 | 1983-10-27 | Leonhard Schmid Kg, 8900 Augsburg | "Mobile mixing and conveying machine for pumpable building material mix" |
DE19718869A1 (en) * | 1996-05-11 | 1997-11-13 | Hermann Maier | Blender or feed pump container for plaster or render |
US6156087A (en) * | 1999-03-05 | 2000-12-05 | Lafarge Corporation | Dust collection system |
FR2831848B1 (en) * | 2001-11-02 | 2004-04-30 | Lucien Vidal | DUST PROTECTION DEVICE, ESPECIALLY FOR A SPRAYING MACHINE |
EP1439939B1 (en) * | 2001-11-02 | 2008-01-02 | Lancy Mixjet | Device for preparing a product such as concrete or mortar |
-
2003
- 2003-10-31 DE DE10351280A patent/DE10351280A1/en not_active Withdrawn
-
2004
- 2004-10-27 DE DE502004010152T patent/DE502004010152D1/en active Active
- 2004-10-27 PT PT04025463T patent/PT1528182E/en unknown
- 2004-10-27 ES ES04025463T patent/ES2330520T3/en active Active
- 2004-10-27 EP EP04025463A patent/EP1528182B1/en not_active Not-in-force
- 2004-10-27 AT AT04025463T patent/ATE444419T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE502004010152D1 (en) | 2009-11-12 |
ATE444419T1 (en) | 2009-10-15 |
EP1528182A2 (en) | 2005-05-04 |
ES2330520T3 (en) | 2009-12-11 |
EP1528182A3 (en) | 2006-11-08 |
DE10351280A1 (en) | 2005-06-02 |
PT1528182E (en) | 2009-11-17 |
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