EP1299598B1 - Support booms for mobile working machines and mobile concrete pump with said support booms - Google Patents
Support booms for mobile working machines and mobile concrete pump with said support booms Download PDFInfo
- Publication number
- EP1299598B1 EP1299598B1 EP01945197A EP01945197A EP1299598B1 EP 1299598 B1 EP1299598 B1 EP 1299598B1 EP 01945197 A EP01945197 A EP 01945197A EP 01945197 A EP01945197 A EP 01945197A EP 1299598 B1 EP1299598 B1 EP 1299598B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strut
- support
- telescopic
- concrete pump
- vehicle chassis
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
- B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
Definitions
- the invention relates to a support boom for mobile machines, especially for truck-mounted concrete pumps with a vertical swivel axis on a chassis swiveling boom box, with an in the boom box retractable telescopic part and with one on the front Arranged end of the telescopic part, optionally vertically or adjustable foot section.
- the invention further relates to a truck-mounted concrete pump Support arms of this type.
- the front outrigger are fixed to the chassis at the rear end of the boom box Swivel bearings pivotally mounted about a vertical axis, the Swivel bearing at a distance from the slewing gear of the concrete placing boom in the Near the bearings for the rear support legs are arranged. Due to the relatively large distance of the bearings from the slewing gear there is an unfavorable flow of power from the concrete placing boom to the outriggers, which leads to an unstable support behavior.
- the invention is based on the object Support boom for mobile machines, especially for truck-mounted concrete pumps to develop, both in the transport position, as well as in Extending at the construction site requires little space and the nevertheless a stable support is guaranteed.
- the solution according to the invention is based on the idea that a Relocation of the vertical swivel axis from the free end of the boom box better use of space in the boom box Swinging out process and better support stability can be achieved.
- a double-acting hydraulic cylinder thanks to the boom box and the telescopic part extends at its two ends at mounting points in the Area of the opposite ends of the boom box and Telescopic part is attached, and that the vertical pivot axis by a in axial distance from the rear attachment point towards the foot section on the boom box arranged, formed bearing point and positioned is that they cross the axis of displacement of the hydraulic cylinder or cuts at an angle.
- the single-section bearing is separated by two Bracket box formed diametrically opposite bearing eyes, which are designed to hold a two-part bearing pin. With these Measures is achieved that the bearing pin the boom box not penetrating.
- a preferred embodiment of the invention provides that the distance of the vertical swivel axis from the rear end of the boom box at least is a fifth and a maximum of two thirds of the boom box length.
- the distance between the pivot axis and the rear is advantageously End of the boom box between a four part and one Third of the length of the boom box. It is an advantage if that in the telescopic part itself insertable at least two into each other has guided telescopic tubes.
- the hydraulic cylinder is corresponding designed for telescopic adjustment as a multiple telescopic cylinder.
- the invention proposed that the boom box nearby its outlet-side front end has a support roller on which the Telescopic part is supported when retracting and extending.
- Another advantageous embodiment of the invention provides that the double-acting, preferably telescopic hydraulic cylinders in the two End positions from the rear end of the boom box with hydraulic fluid is acted upon.
- one is in the axial direction provided through the cylinder connecting line.
- a preferred embodiment of the invention provides that the preferred telescopic hydraulic cylinder with its free rod end at Boom box and innermost with its free bottom end Telescopic tube of the telescopic part is attached.
- the truck-mounted concrete pump comprises one with at least one Front axle and a rear axle provided chassis, one on the chassis slewing gear arranged close to the front axle for a concrete placing boom, a pump arrangement mounted behind the slewing gear on the chassis and a support structure arranged on the chassis.
- the support structure in turn, has two around a vertical pivot axis between one Transport position and at least one support position pivotable front outrigger and two rear outrigger.
- the front The jibs are with their jib boxes over split bearing bolts stored in the vicinity of the slewing gear at a fixed bearing location, the boom boxes at both ends transverse to the pivot axis survive the bearing.
- a preferred embodiment of the invention provides that the front outrigger with respect to its outrigger boxes the chassis longitudinal axis in the transport position when retracted Telescopic parts are aligned in parallel and in the working position when extended Telescopic parts with their foot parts diagonally forward over the chassis edge survive.
- the front outrigger preferably have Transport position with their foot parts in the direction of travel to the front. In this Case is the space requirement, especially small when exhibiting. in principle However, it is also possible that the front outrigger in the transport position point your feet in the direction of travel. This is at relatively small amount of space especially possible when the telescopic parts are designed as a multiple telescope and accordingly relatively short boom box is provided.
- the vertical swivel bearing the outrigger can be arranged close to the slewing gear, so that there is a favorable flow of power from the concrete placing boom to the slewing gear results in the outrigger.
- the rear outrigger boom as a telescopic boom train the above type and preferably in Near the slewing gear with its boom box via split bearing bolts each to store a chassis-fixed bearing, with the outrigger boxes on protrude both ends transversely to the pivot axis over the bearing.
- the rear outrigger can also use their outrigger boxes with respect to the chassis longitudinal axis in the transport position when retracted Telescopic parts are aligned in parallel and in the working position with extended telescopic parts with their foot parts at an angle to the rear protrude beyond the chassis edge.
- the rear outriggers point in the transport position with their foot parts in the direction of travel backwards. This orientation has when extending into the working position the smallest space requirement. In principle, however, it is also possible the rear outrigger in transport position with their foot parts in Align the direction of travel to the front.
- An improvement in support stability can be achieved if the axis of displacement the hydraulic cylinder with the associated swivel axis of the front and / or rear outrigger one from the bearing Inclines sloping angle towards the foot part.
- the truck-mounted concrete pumps shown in the drawing essentially exist from a multi-axle chassis 10 with two front axles 11 and three rear axles 12, with a cab 13, one on a near the front axle Slewing gear 14 mounted on a vertical axis rotatable concrete placing boom 15, with a distance from the slewing gear 14 on the chassis 10 assembled pump assembly 16 and a support structure 18 for the Chassis 10.
- the support structure 18 has a chassis fixed Support frame 19 and includes two front outriggers 20 and two rear outrigger 22, 22 ', which is retracted in the transport position and are aligned parallel to the vehicle longitudinal axis 24 and in the support position Extend diagonally forward or backward over the chassis 10 and are supported on the floor 30 with their foot parts 26, 28.
- the front outriggers 20 are about their vertical pivot axes 32 and the rear swing arms 22, 22 'about their vertical swing axes 34 between the transport position and the support position under the Action of one deployment cylinder 36 is pivotable. Basically it is in a modified embodiment also possible that the each other neighboring front and rear outrigger arms via a common one Drive can be pivoted. In addition, in all embodiments the front outrigger 20 and in part of the embodiments also the rear outrigger 22 as a telescopic boom educated.
- FIGS. 1a and b each include one around the vertical pivot axis 32 or 34 relative to the chassis pivotable boom box 38 and one of three telescopic tubes 40 ', 40 ", 40'" existing telescopic part 40.
- the boom box 38 and the telescopic part 40 extends through a multiple telescopic, double-acting hydraulic cylinder 42 on its outermost rod-side End 44 at a mounting point 46 of the boom box and with its outermost bottom-side end 48 at a fastening point 50 of the telescopic tube 40 "'.
- the attachment point 46 is located doing so at the rear end of the boom box 38 while the attachment point 50 is located at the front end of the telescopic tube 40 '' ', so that the hydraulic cylinder 42 both in the extended position according Fig. 1a, as well as in the retracted end position according to Fig. 1b completely is arranged within the jib 20.
- a special feature of the telescopic support boom 20 is that their vertical pivot axis 32 by an axial distance S from the rear attachment point 46 towards the foot part 26 on the boom box 38 arranged, single-section bearing 54 is formed, so is positioned so that the axis of displacement 52 of the hydraulic cylinder 42 is transverse cuts.
- the one-piece bearing 54 is by two on Boom box 38 formed diametrically opposite bearing eyes, which are intended to receive a two-part bearing pin 56. This ensures that the bearing pin 56 not the boom box 38 penetrates.
- the distance is the pivot axis 32 from the attachment point 46 about a third of the Length of the boom box 38.
- telescopic parts 40 are extended and retracted To reduce friction forces are at the front end of the boom box 38 support rollers 62 arranged on which the outer telescopic tube 40 'of the telescopic parts 40 rolls.
- the foot parts 26 are extended also hydraulic. The hydraulic supply required for this takes place via a hydraulic line 58 which can be unwound from a hose drum 60.
- the telescopic outrigger 20 is retracted in reverse Sequence, with foot parts 26 first being lifted off the floor and optionally in a transport position shown in Fig.
- front support arm 20 as a telescopic boom in the sense of the above Executions trained.
- the rear outriggers are as simple Swivel legs trained. While in the case of FIGS. 2a and b the front Outrigger 20 in the transport position with its foot parts 26 forward point, they point in the case of FIGS. 3a and b in the transport position their foot parts 26 to the rear. in the latter case, the pivot axis 32 compared to FIGS. 2a and b are placed in the direction of the driver's cab 13 with advantages for the support width, for which a slightly larger one Space is required when swiveling in and out.
- 4a and b, 5a and b are both the front as well as the rear outriggers 20,22 as a telescopic boom educated.
- the only difference in these embodiments is that the rear outrigger in the transport position in 4a and b to the rear and in the case of FIGS. 5a and b to the front point.
- the advantages and disadvantages of these two designs are again to be seen in the fact that a little in the transport position more favorable arrangement of the rear outrigger by a little larger swivel range must be purchased during the exhibition process.
- the invention relates to a support boom for mobile machines, especially for truck-mounted concrete pumps.
- the support boom 20 has a vertical pivot axis 32 on a chassis 10 pivotable boom box 38, a telescopic part 40 which can be displaced telescopically relative to the delivery box, one through the boom box 38 and the telescopic part 40 extending double-acting hydraulic cylinder 42 and one at the front end of the telescopic part 40 arranged, vertically adjustable base 26.
- the telescopic hydraulic cylinder 42 is at its two ends at attachment points 46.50 in the region of the opposite ends of the Boom box 38 and the telescopic part 40 attached.
Abstract
Description
Die Erfindung betrifft einen Stützausleger für fahrbare Arbeitsmaschinen, insbesondere für Autobetonpumpen, mit einem um eine vertikale Schwenkachse an einem Fahrgestell verschwenkbaren Auslegerkasten, mit einem in den Auslegerkasten einziehbaren Teleskopteil und mit einem am vorderen Ende des Teleskopteils angeordneten, gegebenenfalls vertikal verschieboder verstellbaren Fußteil. Weiter betrifft die Erfindung eine Autobetonpumpe Stützauslegern dieser Art.The invention relates to a support boom for mobile machines, especially for truck-mounted concrete pumps with a vertical swivel axis on a chassis swiveling boom box, with an in the boom box retractable telescopic part and with one on the front Arranged end of the telescopic part, optionally vertically or adjustable foot section. The invention further relates to a truck-mounted concrete pump Support arms of this type.
Bei fahrbaren Betonpumpen ist es bekannt, seitlich an einem Fahrgestell ausschwenkbare und teleskopierbare Stützausleger zum Abstützen der Betonpumpe in Arbeitsstellung vorzusehen (DE-C-4203820), deren vertikale Schwenkachse am rückwärtigen Ende des Auslegerkastens angeordnet ist. Die vorderen Stützausleger erstrecken sich dort in der Transportstellung vom Schwenklager aus im wesentlichen parallel zur Fahrtrichtung nach vorne, während sie in der Arbeitsstellung schräg nach vorne über das Fahrgestell überstehen. Das in dem schwenkbaren Auslegerkasten verschiebbar angeordnete Teleskopteil ist dort einteilig ausgebildet. Die vorderen Stützausleger sind am rückwärtigen Ende des Auslegerkastens an fahrgestellfesten Schwenklagern um eine vertikale Achse schwenkbar gelagert, wobei die Schwenklager im Abstand vom Drehwerk des Betonverteilermasts in der Nähe der Lagerstellen für die rückwärtigen Stützbeine angeordnet sind. Durch die relativ große Entfernung der Lagerstellen vom Drehwerk ergibt sich ein ungünstiger Kraftfluß vom Betonverteilermast zu den Stützauslegern, der zu einem instabilen Abstützverhalten führt. In mobile concrete pumps, it is known to be on the side of a chassis swing-out and telescopic outrigger to support the concrete pump to be provided in the working position (DE-C-4203820), the vertical Pivot axis is arranged at the rear end of the boom box. The front outrigger extends there in the transport position Pivot bearing from essentially parallel to the direction of travel forward, while in the working position diagonally forward over the chassis survive. That which is slidably arranged in the swiveling boom box The telescopic part is made in one piece there. The front outrigger are fixed to the chassis at the rear end of the boom box Swivel bearings pivotally mounted about a vertical axis, the Swivel bearing at a distance from the slewing gear of the concrete placing boom in the Near the bearings for the rear support legs are arranged. Due to the relatively large distance of the bearings from the slewing gear there is an unfavorable flow of power from the concrete placing boom to the outriggers, which leads to an unstable support behavior.
Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, einen Stützausleger für fahrbare Arbeitsmaschinen, insbesondere für Autobetonpumpen zu entwickeln, der sowohl in der Transportstellung, als auch beim Ausfahren an der Baustelle einen geringen Platzbedarf aufweist und der dennoch eine stabile Abstützung gewährleistet.Proceeding from this, the invention is based on the object Support boom for mobile machines, especially for truck-mounted concrete pumps to develop, both in the transport position, as well as in Extending at the construction site requires little space and the nevertheless a stable support is guaranteed.
Zur Lösung dieser Aufgabe werden die in den Patentansprüchen 1 und 10
angegebenen Merkmalskombinationen vorgeschlagen. Vorteilhafte Ausgestaltungen
und Weiterbildungen der Erfindung ergeben sich aus den abhängigen
Ansprüchen.To solve this problem, that in
Der erfindungsgemäßen Lösung liegt der Gedanke zugrunde, daß durch eine Verlagerung der vertikalen Schwenkachse vom freien Ende des Auslegerkastens in den Auslegerkasten hinein eine bessere Raumnutzung beim Ausschwenkvorgang und eine bessere Abstützstabilität erzielt werden kann. Um dies zu erreichen, wird gemäß der Erfindung vorgeschlagen, daß sich durch den Auslegerkasten und das Teleskopteil ein doppeltwirkender Hydrozylinder erstreckt, der an seinen beiden Enden an Befestigungsstellen im Bereich der einander abgewandten Enden des Auslegerkastens und des Teleskopteils befestigt ist, und daß die vertikale Schwenkachse durch eine in axialem Abstand von der rückwärtigen Befestigungsstelle in Richtung Fußteil am Auslegerkasten angeordnete, geteilte Lagerstelle gebildet und so positioniert ist, daß sie die Verschiebeachse des Hydrozylinders quer oder schräg schneidet. Die einschnittig geteilte Lagerstelle ist durch zwei am Auslegerkasten einander diametral gegenüberliegende Lageraugen gebildet, die zur Aufnahme eines zweigeteilten Lagerbolzens bestimmt sind. Mit diesen Maßnahmen wird erreicht, daß der Lagerbolzen den Auslegerkasten nicht durchdringt.The solution according to the invention is based on the idea that a Relocation of the vertical swivel axis from the free end of the boom box better use of space in the boom box Swinging out process and better support stability can be achieved. To achieve this, it is proposed according to the invention that a double-acting hydraulic cylinder thanks to the boom box and the telescopic part extends at its two ends at mounting points in the Area of the opposite ends of the boom box and Telescopic part is attached, and that the vertical pivot axis by a in axial distance from the rear attachment point towards the foot section on the boom box arranged, formed bearing point and positioned is that they cross the axis of displacement of the hydraulic cylinder or cuts at an angle. The single-section bearing is separated by two Bracket box formed diametrically opposite bearing eyes, which are designed to hold a two-part bearing pin. With these Measures is achieved that the bearing pin the boom box not penetrating.
Eine bevorzugte Ausgestaltung der Erfindung sieht vor, daß der Abstand der vertikalen Schwenkachse vom rückwärtigen Ende des Auslegerkastens mindestens ein Fünftel und höchstens zwei Drittel der Auslegerkastenlänge beträgt. Vorteilhafterweise beträgt der Abstand der Schwenkachse vom rückwärtigen Ende des Auslegerkastens zwischen einem Vierteil und einem Drittel der Länge des Auslegerkastens. Dabei ist es von Vorteil, wenn das in den Auslegerkasten einführbare Teleskopteil selbst mindestens zwei ineinander geführte Teleskoprohre aufweist. Entsprechend ist der Hydrozylinder zur Teleskopverstellung als Mehrfachteleskopzylinder ausgebildet.A preferred embodiment of the invention provides that the distance of the vertical swivel axis from the rear end of the boom box at least is a fifth and a maximum of two thirds of the boom box length. The distance between the pivot axis and the rear is advantageously End of the boom box between a four part and one Third of the length of the boom box. It is an advantage if that in the telescopic part itself insertable at least two into each other has guided telescopic tubes. The hydraulic cylinder is corresponding designed for telescopic adjustment as a multiple telescopic cylinder.
Zur Reduzierung der beim Ausfahren des Teleskopteils aus dem Auslegerkasten auftretenden Reibungskräfte wird gemäß einer vorteilhaften Ausgestaltung der Erfindung vorgeschlagen, daß der Auslegerkasten in der Nähe seines austrittsseitigen vorderen Endes eine Stützrolle aufweist, auf der das Teleskopteil beim Ein- und Ausfahren abstützbar ist.To reduce the time when the telescopic part extends from the boom box occurring friction forces is according to an advantageous embodiment the invention proposed that the boom box nearby its outlet-side front end has a support roller on which the Telescopic part is supported when retracting and extending.
Eine weitere vorteilhafte Ausgestaltung der Erfindung sieht vor, daß der doppelt wirkende, vorzugsweise teleskopierbare Hydrozylinder in den beiden Endlagen vom rückwärtigen Ende des Auslegerkastens aus mit Hydraulikflüssigkeit beaufschlagbar ist. Zu diesem Zweck ist eine in axialer Richtung durch die Zylinder hindurchgeführte Anschlußleitung vorgesehen.Another advantageous embodiment of the invention provides that the double-acting, preferably telescopic hydraulic cylinders in the two End positions from the rear end of the boom box with hydraulic fluid is acted upon. For this purpose, one is in the axial direction provided through the cylinder connecting line.
Vorteilhafterweise weist das am freien Ende des Teleskopteils angeordnete Fußteil einen hydraulischen Ausstellzylinder auf, der über eine auf eine Schlauchtrommel aufgewickelte Schlauchleitung mit Hydraulikflüssigkeit beaufschlagbar ist.Advantageously, that arranged at the free end of the telescopic part Foot part on a hydraulic raising cylinder, which on a to Hose reel wound hose line with hydraulic fluid is.
Eine bevorzugte Ausgestaltung der Erfindung sieht vor, daß der vorzugsweise teleskopierbare Hydrozylinder mit seinem freien stangenseitigen Ende am Auslegerkasten und mit seinem freien bodenseitigen Ende am innersten Teleskoprohr des Teleskopteils befestigt ist. A preferred embodiment of the invention provides that the preferred telescopic hydraulic cylinder with its free rod end at Boom box and innermost with its free bottom end Telescopic tube of the telescopic part is attached.
Die erfindungsgemäße Autobetonpumpe umfaßt ein mit mindestens einer Vorderachse und einer Hinterachse versehenes Fahrgestell, ein am Fahrgestell vorderachsnah angeordnetes Drehwerk für einen Betonverteilermast, eine hinter dem Drehwerk auf dem Fahrgestell montierte Pumpanordnung und eine am Fahrgestell angeordnete Stützkonstruktion. Die Stützkonstruktion weist ihrerseits zwei um je eine vertikale Schwenkachse zwischen einer Transportstellung und mindestens einer Abstützstellung verschwenkbare vordere Stützausleger und zwei rückwärtige Stützausleger auf. Die vorderen Stützausleger sind dabei mit ihren Auslegerkästen über geteilte Lagerbolzen in der Nähe des Drehwerks an je einer fahrgestellfesten Lagerstelle gelagert, wobei die Auslegerkästen an ihren beiden Enden quer zur Schwenkachse über die Lagerstelle überstehen. Eine bevorzugte Ausgestaltung der Erfindung sieht vor, daß die vorderen Stützausleger mit ihren Auslegerkästen bezüglich der Fahrgestelllängsachse in der Transportstellung bei eingezogenen Teleskopteilen parallel ausgerichtet sind und in Arbeitsstellung bei ausgefahrenen Teleskopteilen mit ihren Fußteilen schräg nach vorne über den Fahrgestellrand überstehen. Bevorzugt weisen die vorderen Stützausleger in Transportstellung mit ihren Fußteilen in Fahrtrichtung nach vorne. In diesem Fall ist der Platzbedarf, beim Ausstellvorgang besonders klein. Grundsätzlich ist es jedoch auch möglich, daß die vorderen Stützausleger in Transportstellung mit ihren Fußteilen in Fahrtrichtung nach hinten weisen. Dies ist bei relativ geringem Platzaufwand besonders dann möglich, wenn die Teleskopteile als Mehrfachteleskop ausgebildet sind und dementsprechend ein relativ kurzer Auslegerkasten vorgesehen ist. Das vertikale Schwenklager der Stützausleger kann dabei nahe beim Drehwerk angeordnet werden, so daß sich ein günstiger Kraftfluß vom Betonverteilermast über das Drehwerk in die Stützausleger hinein ergibt.The truck-mounted concrete pump according to the invention comprises one with at least one Front axle and a rear axle provided chassis, one on the chassis slewing gear arranged close to the front axle for a concrete placing boom, a pump arrangement mounted behind the slewing gear on the chassis and a support structure arranged on the chassis. The support structure in turn, has two around a vertical pivot axis between one Transport position and at least one support position pivotable front outrigger and two rear outrigger. The front The jibs are with their jib boxes over split bearing bolts stored in the vicinity of the slewing gear at a fixed bearing location, the boom boxes at both ends transverse to the pivot axis survive the bearing. A preferred embodiment of the invention provides that the front outrigger with respect to its outrigger boxes the chassis longitudinal axis in the transport position when retracted Telescopic parts are aligned in parallel and in the working position when extended Telescopic parts with their foot parts diagonally forward over the chassis edge survive. The front outrigger preferably have Transport position with their foot parts in the direction of travel to the front. In this Case is the space requirement, especially small when exhibiting. in principle However, it is also possible that the front outrigger in the transport position point your feet in the direction of travel. This is at relatively small amount of space especially possible when the telescopic parts are designed as a multiple telescope and accordingly relatively short boom box is provided. The vertical swivel bearing the outrigger can be arranged close to the slewing gear, so that there is a favorable flow of power from the concrete placing boom to the slewing gear results in the outrigger.
Grundsätzlich ist es möglich, auch die rückwärtigen Stützausleger als Teleskopausleger der vorstehenden Art auszubilden und sie vorzugsweise in der Nähe des Drehwerks mit ihrem Auslegerkasten über geteilte Lagerbolzen an je einer fahrgestellfesten Lagerstelle zu lagern, wobei die Auslegerkästen an ihren beiden Enden quer zur Schwenkachse über die Lagerstelle überstehen. Auch die rückwärtigen Stützausleger können mit ihren Auslegerkästen bezüglich der Fahrgestelllängsachse in der Transportstellung bei eingezogenen Teleskopteilen parallel ausgerichtet werden und in der Arbeitsstellung bei ausgefahrenen Teleskopteilen mit ihren Fußteilen schräg nach hinten über den Fahrgestellrand überstehen. Die rückwärtigen Stützausleger weisen dabei in Transportstellung mit ihren Fußteilen zweckmäßig in Fahrtrichtung nach hinten. Diese Ausrichtung hat beim Ausfahren in die Arbeitsstellung den geringsten Platzbedarf. Grundsätzlich ist es jedoch auch möglich, die rückwärtigen Stützausleger in Transportstellung mit ihren Fußteilen in Fahrtrichtung nach vorne auszurichten.Basically, it is also possible to use the rear outrigger boom as a telescopic boom train the above type and preferably in Near the slewing gear with its boom box via split bearing bolts each to store a chassis-fixed bearing, with the outrigger boxes on protrude both ends transversely to the pivot axis over the bearing. The rear outrigger can also use their outrigger boxes with respect to the chassis longitudinal axis in the transport position when retracted Telescopic parts are aligned in parallel and in the working position with extended telescopic parts with their foot parts at an angle to the rear protrude beyond the chassis edge. The rear outriggers point in the transport position with their foot parts in the direction of travel backwards. This orientation has when extending into the working position the smallest space requirement. In principle, however, it is also possible the rear outrigger in transport position with their foot parts in Align the direction of travel to the front.
Eine Verbesserung der Abstützstabilität kann erzielt werden, wenn die Verschiebeachse der Hydrozylinder mit der zugehörigen Schwenkachse der vorderen und/oder rückwärtigen Stützausleger einen von der Lagerstelle zum Fußteil hin abfallenden Schrägwinkel einschließt.An improvement in support stability can be achieved if the axis of displacement the hydraulic cylinder with the associated swivel axis of the front and / or rear outrigger one from the bearing Inclines sloping angle towards the foot part.
Im folgenden wird die Erfindung anhand der in der Zeichnung in schematischer Weise dargestellten Ausführungsbeispiele näher erläutert. Es zeigen
- Fig. 1a und b
- eine teilweise geschnittene Seitenansicht eines Stützauslegers für eine Autobetonpumpe in ausgefahrenem und eingezogenem Zustand;
- Fig. 2a
- eine Seitenansicht einer Autobetonpumpe mit vorderen Stützauslegern nach Fig. 1b in Transportstellung;
- Fig. 2b
- eine Draufsicht auf die Autobetonpumpe mit Stützauslegern in verschiedenen Stellungen;
- Fig. 3a und b
- ein zweites Ausführungsbeispiel einer Autobetonpumpe mit vorderen und rückwärtigen Stützauslegem nach Fig. 1a und b in Darstellungen entsprechend Fig. 2a und b;
- Fig. 4a und b
- ein drittes Ausführungsbeispiel einer Autobetonpumpe in Darstellungen entsprechend Fig. 3a und b;
- Fig. 5a und b
- ein viertes Ausführungsbeispiel einer Autobetonpumpe in Darstellungen entsprechend Fig. 3a und b;
- Fig. 6a bis c
- drei weitere Ausführungsbeispiele einer Autobetonpumpe in Darstellungen entsprechend Fig. 2a, 3a und 4a.
- 1a and b
- a partially sectioned side view of a support boom for a truck-mounted concrete pump in the extended and retracted state;
- Fig. 2a
- a side view of a truck-mounted concrete pump with front stabilizers according to FIG. 1b in the transport position;
- Fig. 2b
- a plan view of the truck-mounted concrete pump with outriggers in different positions;
- 3a and b
- a second embodiment of a truck-mounted concrete pump with front and rear support boom according to FIGS. 1a and b in representations corresponding to FIGS. 2a and b;
- 4a and b
- a third embodiment of a truck-mounted concrete pump in representations corresponding to FIGS. 3a and b;
- 5a and b
- a fourth embodiment of a truck-mounted concrete pump in representations corresponding to FIGS. 3a and b;
- 6a to c
- three further exemplary embodiments of a truck-mounted concrete pump in representations corresponding to FIGS. 2a, 3a and 4a.
Die in der Zeichnung dargestellten Autobetonpumpen bestehen im wesentlichen
aus einem mehrachsigen Fahrgestell 10 mit zwei Vorderachsen 11 und
drei Hinterachsen 12, mit einem Führerhaus 13, einem an einem vorderachsnahen
Drehwerk 14 um eine vertikale Achse drehbar gelagerten Betonverteilermast
15, mit einer im Abstand vom Drehwerk 14 auf dem Fahrgestell
10 montierten Pumpanordnung 16 sowie einer Stützkonstruktion 18 für das
Fahrgestell 10. Die Stützkonstruktion 18 weist einen fahrgestellfesten
Tragrahmen 19 auf und umfaßt zwei vordere Stützausleger 20 und zwei
rückwärtige Stützausleger 22,22', die in der Transportstellung eingezogen
und parallel zur Fahrzeuglängsachse 24 ausgerichtet sind und in der Abstützstellung
schräg nach vorne bzw. hinten über das Fahrgestell 10 überstehen
und mit ihren Fußteilen 26,28 auf dem Boden 30 abgestützt sind.The truck-mounted concrete pumps shown in the drawing essentially exist
from a
Die vorderen Stützausleger 20 sind um ihre vertikalen Schwenkachsen 32
und die rückwärtigen Schwenkausleger 22,22' um ihre vertikalen Schwenkachsen
34 zwischen der Transportstellung und der Abstützstellung unter der
Einwirkung je eines Ausstellzylinders 36 verschwenkbar. Grundsätzlich ist es
bei einem abgewandelten Ausführungsbeispiel auch möglich, daß die einander
benachbarten vorderen und rückwärtigen Stützausleger über einen gemeinsamen
Antrieb verschwenkt werden. Zusätzlich sind bei allen Ausführungsbeispielen
die vorderen Stützausleger 20 und bei einem Teil der Ausführungsbeispiele
auch die rückwärtigen Stützausleger 22 als Teleskopausleger
ausgebildet.The
Wie insbesondere aus Fig. 1a und b zu ersehen ist, umfassen sie jeweils
einen um die vertikale Schwenkachse 32 bzw. 34 gegenüber dem Fahrgestell
verschwenkbaren Auslegerkasten 38 und ein aus drei Teleskoprohren
40',40",40'" bestehendes Teleskopteil 40 auf. Durch den Auslegerkasten 38
und das Teleskopteil 40 hindurch erstreckt sich ein mehrfach teleskopierbarer,
doppelt wirkender Hydrozylinder 42, der an seinem äußersten stangenseitigen
Ende 44 an einer Befestigungsstelle 46 des Auslegerkastens und
mit seinem äußersten bodenseitigen Ende 48 an einer Befestigungsstelle 50
des Teleskoprohrs 40"' angelenkt ist. Die Befestigungsstelle 46 befindet sich
dabei am rückwärtigen Ende des Auslegerkastens 38, während sich die Befestigungsstelle
50 am vorderen Ende des Teleskoprohrs 40''' befindet, so
daß sich der Hydrozylinder 42 sowohl in der ausgefahrenen Stellung gemäß
Fig. 1a, als auch in der eingezogenen Endstellung gemäß Fig. 1b vollständig
innerhalb des Stützauslegers 20 angeordnet ist.As can be seen in particular from FIGS. 1a and b, they each include
one around the
Eine Besonderheit der teleskopierbaren Stützausleger 20 besteht darin, daß
ihre vertikale Schwenkachse 32 durch eine in axialem Abstand S von der
rückwärtigen Befestigungsstelle 46 in Richtung Fußteil 26 am Auslegerkasten
38 angeordnete, einschnittig geteilte Lagerstelle 54 gebildet ist, die so
positioniert ist, daß sie die Verschiebeachse 52 des Hydrozylinders 42 quer
schneidet. Die einschnittig geteilte Lagerstelle 54 ist dabei durch zwei am
Auslegerkasten 38 einander diametral gegenüberliegende Lageraugen gebildet,
die zur Aufnahme eines zweigeteilten Lagerbolzens 56 bestimmt sind.
Damit wird erreicht, daß der Lagerbolzen 56 den Auslegerkasten 38 nicht
durchdringt. Bei den gezeigten Ausführungsbeispielen beträgt der Abstand
der Schwenkachse 32 von der Befestigungsstelle 46 etwa ein Drittel der
Länge des Auslegerkastens 38. Da die Schwenkachsen 32 der teleskopierbaren
Stützausleger 20 in der Nähe des Seitenrandes des Fahrgestells 10
angeordnet sind, wird mit den beschriebenen Maßnahmen erreicht, daß der
rückwärtige Teil des Auslegerkastens 38 beim Ausschwenken des
Stützauslegers in den Bereich des Fahrgestells 10 hineingeschwenkt wird,
so daß der Platzbedarf beim Ausstellvorgang relativ klein ist. Wie aus den
Fig. 2b, 3b, 4b und 5b zu ersehen ist, kann je nach Ausstellwinkel der
Stützausleger neben der Normalabstützung (unten) auch eine Schmalabstützung
(oben) gewählt werden. Damit ist eine Anpassung an gegebene
Platzverhältnisse im Bereich der Baustelle möglich. Zum Ausfahren werden
die teleskopierbaren Stützausleger 20 zunächst um die vertikale Schwenkachse
32 nach außen geschwenkt und sodann über die Hydrozylinder 42
teleskopiert. Um die beim Aus- und Einfahren der Teleskopteile 40 zu überwindenden
Reibungskräfte zu reduzieren, sind am vorderen Ende der Auslegerkasten
38 Stützrollen 62 angeordnet, auf denen das äußere Teleskoprohr
40' der Teleskopteile 40 abrollt. Das Ausfahren der Fußteile 26 erfolgt
ebenfalls hydraulisch. Die hierfür erforderliche Hydraulikzufuhr erfolgt über
eine Hydräulikleitung 58, die von einer Schlauchtrommel 60 abwickelbar ist.
Das Einfahren der teleskopierbaren Stützausleger 20 erfolgt in umgekehrter
Reihenfolge, wobei zunächst die Fußteile 26 vom Boden abgehoben und
gegebenenfalls in eine in Fig. 6a bis c gezeigte Transportstellung nach oben
überstehend angehoben werden, sodann die Teleskoprohre 40',40",40'"
über den Hydrozylinder 42 in den Auslegerkasten 38 zurückgezogen und
anschließend die Auslegerkästen 38 um die vertikalen Schwenkachsen 32
mit Hilfe des Ausstellzylinders 36 eingeschwenkt werden.A special feature of the
Bei den Ausführungsbeispielen nach Fig. 2a und b und 3a und b sind nur die
vorderen Stützausleger 20 als Teleskopausleger im Sinne der vorstehenden
Ausführungen ausgebildet. Die rückwärtigen Stützausleger sind als einfache
Schwenkbeine ausgebildet. Während im Falle der Fig. 2a und b die vorderen
Stützausleger 20 in der Transportstellung mit ihren Fußteilen 26 nach vorne
weisen, weisen sie im Falle der Fig. 3a und b in der Transportstellung mit
ihren Fußteilen 26 nach hinten. im letzteren Falle kann die Schwenkachse
32 gegenüber Fig. 2a und b weiter in Richtung Führerhaus 13 gelegt werden,
mit Vorteilen für die Abstützweite, wofür allerdings ein etwas größerer
Platzbedarf beim Ein- und Ausschwenken entsteht.In the exemplary embodiments according to FIGS. 2a and b and 3a and b only those are
Bei den Ausführungsbeispielen nach Fig. 4a und b, 5a und b sind sowohl die
vorderen als auch die rückwärtigen Stützausleger 20,22 als Teleskopausleger
ausgebildet. Der einzige Unterschied bei diesen Ausführungsbeispielen
besteht darin, daß die rückwärtigen Stützausleger in der Transportstellung im
Falle der Fig. 4a und b nach hinten und im Falle der Fig. 5a und b nach vorne
weisen. Die Vor- und Nachteile dieser beiden Konstruktionen sind wiederum
darin zu sehen, daß eine in der Transportstellung platzmäßig etwas
günstigere Anordnung der rückwärtigen Stützausleger durch einen etwas
größeren Schwenkbereich beim Ausstellvorgang erkauft werden muß.4a and b, 5a and b are both the
front as well as the
Im Falle der in Fig. 6a bis c gezeigten Ausführungsbeispiele können im
Transportzustand die Fußteile 26,28 vollständig eingezogen werden, mit
dem Vorteil einer größeren Bodenfreiheit der Autobetonpumpe.In the case of the exemplary embodiments shown in FIGS. 6a to c
Transport condition, the
Zusammenfassend ist folgendes festzuhalten: Die Erfindung bezieht sich auf
einen Stützausleger für fahrbare Arbeitsmaschinen, insbesondere für Autobetonpumpen.
Der Stützausleger 20 weist eine um eine vertikale Schwenkachse
32 an einem Fahrgestell 10 verschwenkbaren Auslegerkasten 38, ein
teleskopartig relativ zum Auslegerkasten verschiebbares Teleskopteil 40,
einen sich durch den Auslegerkasten 38 und das Teleskopteil 40 hindurch
erstreckenden doppeltwirkenden Hydrozylinder 42 und ein am vorderen Ende
des Teleskopteils 40 angeordnetes, vertikal verstellbares Fußteil 26 auf.
Der teleskopierbare Hydrozylinder 42 ist mit seinen beiden Enden an Befestigungsstellen
46,50 im Bereich der einander abgewandten Enden des
Auslegerkastens 38 und des Teleskopteils 40 befestigt. Um den Platzbedarf
sowohl in der Transportstellung als auch beim Ausstellen der Stützausleger
zu reduzieren und dennoch eine stabile Abstützung zu gewährleisten, wird
gemäß der Erfindung vorgeschlagen, daß die vertikale Schwenkachse 32
durch eine in axialem Abstand S von der rückwärtigen Befestigungsstelle 46
in Richtung Fußteil am Auslegerkasten 38 angeordnete, einschnittig geteilte
Lagerstelle gebildet und so positioniert ist, daß sie die Verschiebeachse 52
des Hydrozylinders 42 quer schneidet.In summary, the following can be stated: The invention relates to
a support boom for mobile machines, especially for truck-mounted concrete pumps.
The
Claims (19)
- Support struts for mobile working machines, in particular for mobile concrete pumps, with a strut body (38) pivotable on a vehicle chassis (10) about a vertical pivot axis (32), with a telescopic part (40) telescopically displaceable relative to the strut body (38) and with a foot part (26) provided at the outboard end of the telescopic part (40) and optionally vertically displaceable, thereby characterized, that a double-acting hydraulic cylinder (42) extends through the strut body and the telescopic part, the cylinder (42) connected at its respective ends to securing points (46, 50) in the area of opposing ends of the strut body (38) and the telescopic part (40), and that the vertical pivot axis (32) is formed by divided bearings (54) located on the strut body (38) spaced axially a distance (S) from the cylinder inboard securing point (46) in the direction of the foot part (28), and so positioned, that it transects the axis of displacement (52) of the hydraulic cylinder (42).
- Support strut according to Claim 1, thereby characterized, that the bearing (54) is formed by two bearing journals or bearing pins (56) diametrically opposing each other on the bearing box.
- Support strut according to Claim 1 or 2, thereby characterized, that the telescopic part (40) includes at least two telescopic tubes (40', 40", 40"') guided within each other.
- Support strut according to one of Claims 1 through 3, thereby characterized, that the distance (S) of the pivot axis (32) from the inboard end of the strut body (38) is at least one-fifth and at the most two-thirds of the length of the strut body length.
- Support strut according to Claim 4, thereby characterized, that the distance (S) of the pivot axis (32) from the inboard end of the strut body is between one quarter and one-third of the length of the strut body.
- Support strut according to one of Claims 1 through 5, thereby characterized, that the strut body (38) includes a roller surface or glide surface (62) in the vicinity of its outboard end, upon which the telescopic part (40) is supported during deployment and retraction.
- Support strut according to one of Claims 1 through 6, thereby characterized, that the hydraulic cylinder (42) receives hydraulic input on the base or rod side from the inboard end of the strut body (38).
- Support strut according to one of Claims 1 through 7, thereby characterized, that the hydraulic cylinder (42) is a telescopic cylinder connected with its outer-most rod end (44) with the strut body (38) and with its outer-most base end (48) with the most internal telescopic tube (40"').
- Support strut according to one of Claims 1 through 8, thereby characterized, that the foot part (28) includes a hydraulic deployment cylinder, adapted to being acted upon via hydraulic fluid from a supply hose (58) adapted to be rolled upon a hose roll (60).
- Mobile concrete pump with a vehicle chassis (10) provided with at least one forward axle (11) and one rearward axle (12), with a rotation mechanism (14) for a distribution mast (15) provided on the vehicle chassis (10) near the forward axle, with a pump unit (16) mounted on the vehicle chassis (10) behind the rotation mechanism (14) and with a support assembly (18) mounted on the vehicle chassis (10), which support assembly includes two forward support struts (20) pivotable about a vertical pivot axis (32) between a transport position and at least one support position and two rearward support struts (22, 22'), thereby characterized, that the support struts (20) according to one of Claims 1 through 9 are mounted via divided or separated bearing bolts (56) with their strut bodies (38) in the vicinity of the rotation mechanism (14) on respectively one vehicle chassis-fixed bearing point (58), wherein the strut bodies (38) project with their two ends perpendicularly to the pivot axis (32) beyond the bearing point (54).
- Mobile concrete pump according to Claim 10, thereby characterized, that the forward support struts (20) when in the transport position with retracted telescopic parts are oriented with their strut bodies (38) parallel to the vehicle chassis longitudinal axis (24) and when in the support position, with extended telescopic parts (40), project with their foot parts (26) diagonally forwards beyond the side edge of the vehicle chassis.
- Mobile concrete pump according to Claim 11, thereby characterized, that the forward support struts (20) in the transport position are oriented with their foot parts (26) facing forwards in the direction of travel.
- Mobile concrete pump according to Claim 11, thereby characterized, that the forward support struts (20) in the transport position are oriented with their foot parts (26) facing rearwards relative to the direction of travel.
- Mobile concrete pump according to one of Claims 10 through 13, thereby characterized, that the rearward support struts (22) are formed according to one of Claims 1 through 9, are mounted respectively in a vehicle chassis fixed bearing point with their strut bodies (38) via divided bearing bolts (56), wherein the two ends of the strut bodies (38) project perpendicular to the pivot axis (34) beyond the bearing point.
- Mobile concrete pump according to Claim 14, thereby characterized, that the rearward support struts (22), when in the transport position with retracted telescopic parts (40), are oriented with their strut bodies (38) parallel to the vehicle chassis longitudinal axis (24) and when in the support position with extended telescopic parts (40) project with their foot parts (28) diagonally downwards beyond the side edge of the vehicle chassis.
- Mobile concrete pump according to Claim 15, thereby characterized, that that the rearward support struts (22) in the transport position are oriented with their foot parts (28) facing forwards in the direction of travel.
- Mobile concrete pump according to Claim 15, thereby characterized, that the rearward support struts (22) in the transport position are oriented with their foot parts (28) facing rearwards relative to the direction of travel.
- Mobile concrete pump according to one of Claims 10 through 17, thereby characterized, that the axis of displacement (52) of the hydraulic cylinder (42) defines with the associated pivot axis (32, 34) of the forward and/or rearward support strut (20, 22) a slant angle decreasing from the bearing point (54) towards the foot part (26, 28).
- Mobile concrete pump according to one of Claims 10 through 18, thereby characterized, that the foot part (26, 28) on the support strut (20, 22) is extended downwardly when in the support position and in the transport position is retracted to project upwards over the telescopic part (40).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10032622A DE10032622A1 (en) | 2000-07-07 | 2000-07-07 | Concrete pumping vehicle as footed boom reciprocates boom by double-acting hydraulic cylinder led through boom box and telescoping parts so box swivel axis intersects cylinder axis at right angles. |
DE10032622 | 2000-07-07 | ||
PCT/EP2001/006032 WO2002008522A2 (en) | 2000-07-07 | 2001-05-26 | Support booms for mobile working machines and mobile concrete pump with said support booms |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1299598A2 EP1299598A2 (en) | 2003-04-09 |
EP1299598B1 true EP1299598B1 (en) | 2004-02-25 |
Family
ID=7647844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01945197A Expired - Lifetime EP1299598B1 (en) | 2000-07-07 | 2001-05-26 | Support booms for mobile working machines and mobile concrete pump with said support booms |
Country Status (10)
Country | Link |
---|---|
US (1) | US6840540B2 (en) |
EP (1) | EP1299598B1 (en) |
JP (1) | JP4035442B2 (en) |
KR (1) | KR100748781B1 (en) |
CN (1) | CN1225398C (en) |
AT (1) | ATE260374T1 (en) |
DE (2) | DE10032622A1 (en) |
ES (1) | ES2213704T3 (en) |
TR (1) | TR200400646T4 (en) |
WO (1) | WO2002008522A2 (en) |
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- 2000-07-07 DE DE10032622A patent/DE10032622A1/en not_active Withdrawn
-
2001
- 2001-05-26 DE DE50101566T patent/DE50101566D1/en not_active Expired - Lifetime
- 2001-05-26 ES ES01945197T patent/ES2213704T3/en not_active Expired - Lifetime
- 2001-05-26 KR KR1020027014148A patent/KR100748781B1/en not_active IP Right Cessation
- 2001-05-26 AT AT01945197T patent/ATE260374T1/en active
- 2001-05-26 TR TR2004/00646T patent/TR200400646T4/en unknown
- 2001-05-26 US US10/239,495 patent/US6840540B2/en not_active Expired - Lifetime
- 2001-05-26 WO PCT/EP2001/006032 patent/WO2002008522A2/en active IP Right Grant
- 2001-05-26 CN CNB018086268A patent/CN1225398C/en not_active Expired - Fee Related
- 2001-05-26 EP EP01945197A patent/EP1299598B1/en not_active Expired - Lifetime
- 2001-05-26 JP JP2002513994A patent/JP4035442B2/en not_active Expired - Fee Related
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DE102014224498A1 (en) | 2014-12-01 | 2016-06-02 | Putzmeister Engineering Gmbh | Mobile concrete pump with outrigger |
Also Published As
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CN1225398C (en) | 2005-11-02 |
JP2004504241A (en) | 2004-02-12 |
DE10032622A1 (en) | 2002-01-17 |
WO2002008522A3 (en) | 2002-04-18 |
ATE260374T1 (en) | 2004-03-15 |
DE50101566D1 (en) | 2004-04-01 |
WO2002008522A2 (en) | 2002-01-31 |
ES2213704T3 (en) | 2004-09-01 |
CN1440364A (en) | 2003-09-03 |
JP4035442B2 (en) | 2008-01-23 |
US6840540B2 (en) | 2005-01-11 |
EP1299598A2 (en) | 2003-04-09 |
TR200400646T4 (en) | 2004-06-21 |
KR100748781B1 (en) | 2007-08-13 |
US20030038466A1 (en) | 2003-02-27 |
KR20030011830A (en) | 2003-02-11 |
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