EP1060052B1 - Vorrichtung zum bearbeiten einer fläche, insbesondere hubarbeitsbühne, und verfahren zum betrieb einer solchen vorrichtung - Google Patents
Vorrichtung zum bearbeiten einer fläche, insbesondere hubarbeitsbühne, und verfahren zum betrieb einer solchen vorrichtung Download PDFInfo
- Publication number
- EP1060052B1 EP1060052B1 EP99913210A EP99913210A EP1060052B1 EP 1060052 B1 EP1060052 B1 EP 1060052B1 EP 99913210 A EP99913210 A EP 99913210A EP 99913210 A EP99913210 A EP 99913210A EP 1060052 B1 EP1060052 B1 EP 1060052B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- working
- boom
- blasting
- superstructure
- movement
- 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
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
- B24C3/06—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
- B24C3/06—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable
- B24C3/065—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable with suction means for the abrasive and the waste material
Definitions
- the invention relates to a device for processing a surface, in particular an aerial work platform, according to the preamble of Claim 1 and a method for operating such a device.
- Such a device is known from US 4,286,417.
- a Device for cleaning surfaces of large objects with a movable jet basket is known from DE 36 29 623 C2.
- Blasting basket are one or more blasting nozzles of a sandblasting device, such as they are known from AT E 151 678 T1 for the dust-free irradiation of Areas housed.
- EP 0 511 636 A1 shows a device for positioning and guiding a tool, for example a cleaning tool for a Aircraft in which the orientation of the work equipment is controlled by sensors Stepper motors are carried out on swiveling and coupled to each other Support arms are attached.
- Stepper motors are carried out on swiveling and coupled to each other Support arms are attached.
- a similar arrangement from one another arranged and coupled with each other and motorized swivel Support arms are shown in WO 83/03071.
- EP 0 665 085 A1 shows a device for surface treatment, in which the working medium by magnetic force on the surface to be machined is created.
- the permanent magnets that apply the magnetic force are arranged on a carrier device for the work equipment.
- the aerial work platform usually includes a motor-driven one Chassis on which a superstructure rotates about a vertical axis is arranged. On the uppercarriage it is around a horizontal axis swiveling boom arranged.
- the boom is telescopic extendable and has at its end facing away from the guard Work equipment, a work platform or a work basket, for example a blasting basket, on.
- the device can also be operated, for example, by scissors or Stamping platform to be formed on their facing the work equipment End forms a platform that the tool side end of the Cantilever corresponds.
- the device is preferably arranged on a mobile base, in particular on one a fully lockable steering with one preferably steering angle on both sides of at least 90 ° mobile Pedestal arranged.
- Working overhead blasting becomes the working tool by extending the platform in contact with the area to be worked brought during the feed and parallel shifting in particular done by moving the stage. This happens when blasting sideways Creating by moving or positioning the stage, whereas the Feed can be done in particular by lifting and lowering the stage.
- the parallel shifted editing of the surface takes place again especially by moving the stage.
- a multi-articulated boom is usually considered due to the number of joints a mechanical spatial Has overdetermination.
- one or two-row brush seals come a vacuum seal or a magnetic force assisted seal, such as from known from DE 29 04 093 A1.
- the application or pressing takes place of the work equipment to the surface to be processed via a swivel torque of the superstructure, which is about the vertical axis opposite the chassis is pivotable, or via sensor-controlled, multi-axis and on the Work equipment directly attacking drive systems.
- This has the Disadvantage that either the application force is not exactly adjustable and is adjustable because the entire mass of the Upper carriage, the boom and the work basket are pivoted must, or the sensor-driven drive systems in the area of Work equipment is prone to failure. This means both the required tightness between work equipment and surface to be worked as well the required lifespan of the aerial work platform is not guaranteed.
- the well-known aerial work platforms Machining operations on sensitive surfaces, such as do not clean or paint aircraft surfaces.
- the invention is therefore based on the object of a device for Working on a surface, especially an aerial work platform, To provide that has a long service life and with the the application force is adjustable with a high degree of constancy.
- the object of a method for operating a to provide such an aerial work platform.
- the procedure is supposed to in particular the traversing of a predefinable path on a surface higher order, in which the work equipment in constant system with the machined area.
- the suspension is preferably formed by a fork-shaped suspension for the bell-shaped or basket-shaped working medium, the shaft of the fork-shaped suspension being freely rotatable about its longitudinal axis, for example by means of a tapered roller bearing.
- limit switches By suitably attaching limit switches to the two axes of the suspension, when a predetermined swiveling angle of the working medium to the fork or the axis of the tapered roller bearing is reached the work equipment can be pivoted back into a basic position by means of appropriate drive means.
- the basic position can be, for example, the position of the work equipment, in which the supply hoses and lines lead to the work equipment, for example to a blasting or spraying tool.
- position sensors in particular angle sensors, can be arranged on the two axes of the suspension. which provide feedback to the control unit about the position of the two axes and thus about the orientation of the work equipment in relation to the surface to be worked. This can ensure that the application force acting on the suspension always acts essentially in a direction that includes a right angle with the surface to be worked.
- the surface spanned by the fork of the suspension is preferably parallel to the surface to be machined or forms an acute angle with it of 0 ° to 30 °.
- a pneumatic or hydraulic cylinder, a spring with an adapted spring constant which is comparatively low in the working range or the like can be considered as a means for providing the application force.
- a hydraulic cylinder can be operated alone or in cooperation with a hydraulic pressure accumulator. It can preferably be subjected to a constant and comparatively low pressure.
- the energy storage effect can be achieved particularly easily due to the compressibility of the working medium.
- the changes in distance resulting from the movement of the working medium along a predeterminable path on the surface to be machined are compensated for by the stroke of the means for providing the application force, in particular the pneumatic cylinder.
- Several position switches can be arranged along the stroke path, in particular at the end positions and in a central position. Instead of or as an alternative to the position switches, which realize a discrete position detection, a continuous position detection of the stroke position of the energy accumulator can also be provided.
- the work equipment or the suspension carrying it is by means of the first Drive means about two axes enclosing a right angle rotatably rotatable relative to the end of the boom near the work equipment, in particular, a first drive element of the first drive means rotates the Suspension around a first vertical axis and a second drive element the first drive means rotates the suspension around a first horizontal Axis.
- the first drive element can additionally by another horizontal axis by means of a third drive element of the first Drive means can be rotated.
- the first drive means serve a tracking of the means for providing the investor and are from the position information of the means for providing the application force controlled. Due to the pivotability of the work equipment relative to the The boom is both side machining and overhead machining Area possible, with changes in the distance between the Work equipment and the area to be processed by the means for Providing the investor to be balanced.
- the funds for providing the Applying force and thus the work equipment or the suspension by means of second drive means that extend and retract telescopically Drive the boom opposite a superstructure by a second horizontal axis is rotatable, and which compared to a substructure, in particular a chassis, rotatable about a second vertical axis Drive the uppercarriage.
- the second drive means can be controlled at least partially by the position information of the means for providing the application force. For example, in the case of lateral blasting, by controlling the movement of the extension and retraction of the boom and the rotation of the boom about the second horizontal axis relative to the superstructure, a path which can be predetermined by a control device can be traversed on the surface to be processed.
- the distance between the end of the boom on the working medium side and the surface to be processed becomes so large that it can no longer be compensated for by the means for providing the application force, and corresponding position information of these means is sent to the control device is actuated, for example an end position switch the boom is adjusted by rotating the superstructure in relation to the substructure in the direction of the surface to be worked.
- tracking can be carried out by rotating the boom about the second horizontal axis if the predetermined path is followed by controlling the extension and retraction of the boom and by rotating the superstructure relative to the substructure.
- the movements caused by the second drive means are sensed, in particular the tracking movement is used as an input variable for uses the control of the movement of the working means along the predetermined path, for example to be able to carry out control corrections caused by the tracking movement and / or to to keep the web speed constant when working on the surface.
- the first and second drive means can in particular be double acting pneumatic or hydraulic cylinders include.
- such devices are, in particular, for processing ship hulls the processing of weld seams, usable or for removing paint or other layers or contaminants from aircraft.
- the provision of two sequences offset by 90 ° ensures reliable removal of the waste materials resulting from the machining process, both with side blasting and with overhead blasting.
- Lateral blasting in which the surface to be irradiated is at an angle of for example includes 90 ° to 45 ° with the footprint of the device, is essentially by extending and retracting the boom and by Control the usually hydraulic or electric driven The boom is rotated relative to the superstructure.
- Overhead blasting where the area to be irradiated is at an angle for example 45 ° to 0 ° with the footprint of the device includes, essentially by extending and retracting the boom and by actuating them, which are also usually hydraulic or electrical driven rotary movement of the superstructure in relation to the substructure carried out. With both jet types, the means for Providing the investor with the tracking of the work equipment resulting changes in distance.
- the work equipment is first applied to the surface to be worked, then along the surface of a predefinable path on the surface moves, and in doing so they move by moving along the path resulting changes in the distance between the work equipment and the area is compensated for by the means for providing the application force.
- the movement along the predefinable path is usually carried out by Extending and retracting the boom and rotating the boom by one second horizontal axis opposite the superstructure or by turning of the superstructure around a second vertical axis opposite the substructure.
- the movements are, for example, by a Programmable logic controller controlled, making automated any tracks can be traveled, for example meandering juxtaposed and essentially vertical and themselves overlapping sheets for cleaning a large area, for example a hull.
- the programmable logic controller Control does not take on a direct control function for the system of the Work equipment on the surface to be worked. This is through the suspension of the work equipment, especially in connection with the Force storage of the means for providing the applied force accomplished.
- the application force is preferably controlled by a pneumatic cylinder provided. As soon as this ends its Travel distance reached and a corresponding limit switch is actuated, or continuous position monitoring reaching the Signaled end position, are the means to provide a Tracking force by means of the first and / or second drive means.
- FIG. 1 shows an aerial work platform 100 with a blasting basket for lateral blasting, which has a motor-driven chassis 101 and an uppercarriage 103 which is rotatable thereon about a second vertical axis 102 and on which a boom 104 which is pivotable about a second horizontal axis is arranged.
- a hydraulic drive element 136 of the second drive means acts between the superstructure 103 and the boom 104.
- the boom 104 can be extended telescopically and has a blasting basket 105 at its end facing away from the superstructure 103.
- the fork 107 of the suspension of the blasting basket 105 and a third hydraulic drive element 108 of the first drive means which serves to track the means 318 for providing the application force as well as a pivoting movement of the blasting basket 105 about a further horizontal axis 333.
- the illustrated lateral blasting can be carried out, for example, on surfaces to be machined which form an angle between 45 ° and 90 ° with the standing surface 106 of the aerial work platform 100.
- the boom 104 is opposite the superstructure 103 by means of a first one Drive elements of the second drive means in the form of a hydraulic Cylinder 136 rotatable.
- This rotating or swiveling movement also affects the cylinder 134, which is preferably used as a master cylinder for the third can serve hydraulic drive element 108, which in this Use case primarily as slave cylinder and only secondarily as independent third hydraulic drive element is used.
- FIG. 2 shows an aerial work platform 100 with a blasting basket 205 at Overhead beams.
- a blasting basket 205 at Overhead beams.
- the fork 207 of the suspension in side view and the third Drive element 208 a second hydraulic drive element 209 of the first drive means, which is also like the third drive element 208, both a swiveling movement of the jet basket 205 - this time around a first horizontal axis 326 - as well as a tracking of the means 318 can serve to provide the application force.
- Both drive elements 208, 209 are designed as double-acting hydraulic cylinders. As an alternative to this embodiment there are also double-acting ones pneumatic cylinders into consideration.
- the overhead blasting will provided, for example, when the surface 311 to be machined also has the footprint 106 of the aerial work platform 100 has an angle of 0 ° to 45 ° includes.
- the conical, shown in Figs. 1 and 2, for processing surface 311 open jet basket 105, 205 typically has a diameter of 1 m and a mass of 100 kg. All of that Device arranged on the working side end of the boom 104 a mass of about 500 kg. Sand, for example, serves as blasting material, Corundum or aluminum oxide or steel gravel. A possible one The application of these blasting baskets is the pretreatment of Ship hulls before painting.
- the blasting basket 305 has a feed 313 for the blasting material and two, about 90 ° offsets 314 attached to the blasting basket 305.
- the blasting basket 305 is free on fork 307 about a first horizontal axis 315 pivotally suspended.
- the shaft of the fork 307 is on one Tapered roller bearing 316 around an almost vertical axis 316 'free pivotally suspended.
- the fork 307 and the tapered roller bearing 316 realize the two, preferably a right angle including axes freely movable suspension of the blasting basket 305 at the end of the boom 304 near the blasting basket.
- the tapered roller bearing 316 is an angular element with the piston 317 of the pneumatic cylinder 318 connected.
- the storage of the Piston 317 or the piston rod of the pneumatic cylinder 318 takes place on second rollers 319.
- the pneumatic cylinder 318 is with this first leg 323 firmly connected.
- the first arm 324 is over one opposite leg 325 about a first horizontal axis 326 a second arm 328 pivotable.
- the swivel movement is from a first double-acting pneumatic or hydraulic Cylinder 327 of the first drive means causes that with the first leg 323 of the first arm 324 and the second arm 328 is connected.
- the second arm 328 is about a first vertical axis 329 by means of a hydraulic rotary motor or a swivel cylinder 330 swivel.
- the hydraulic swivel cylinder 330 is fixed with a first leg 331 of a two-armed lever 332 connected to another horizontal axis 333 opposite the end of the boom near the jet basket 304 is pivotable.
- the pivoting movement is done by a second double acting pneumatic or hydraulic cylinder 334 the causes first drive means which on the one hand with the boom 304 connected and on the other hand to the second leg 335 of the lever 332 connected is.
- This second double acting cylinder 334 can in hydraulic version additionally or alone as slave cylinder on the one hand with the boom 304 and on the other hand with the Superstructure 103 connected and the drive element 136 mechanically parallel connected master cylinder 134 are moved so that even when Swiveling the boom 304 against the superstructure 103 about his second horizontal axis the first vertical axis 329 substantially maintains its vertical orientation.
- the exemplary embodiment shown in FIG. 3 has an over-determination with regard to the pivoting movements.
- This Over-determination with regard to the swiveling movements allows larger ones Degrees of freedom when tracking the blasting basket on the one to be processed Area.
- the pneumatic cylinder 318 which can be acted upon by an adjustable, constant air pressure via a pressure control valve (not shown).
- the distance change is compensated by the pneumatic cylinder 318 until the cam 320 interacts with one of the limit switches 321.
- a correspondingly generated control signal activates one of the double-acting cylinders 327, 334 or a tracking movement by moving the boom 101 in or out, by rotating the boom 101 relative to the superstructure 103, or by rotating the superstructure 103 relative to the chassis 101.
- the readjustment can take place until either the cam 320 interacts with the limit switch 321 at the opposite end of the stroke of the pneumatic cylinder 318 or until the cam 320 interacts with the center switch 322.
- FIG. 4 shows the blasting basket 405 during overhead blasting.
- 3 is the extension of the first double-acting cylinder 427.
- the waste materials resulting from the processing are discharged from the blasting basket 405 essentially via the outlet 414.
- the further mode of operation in particular the compensation of changes in distance between the jet basket 405 and the surface 411 to be processed, takes place in an analogous manner to the mode of operation as described with reference to FIG. 3.
- an increased proportion of the weight force compared to the lateral blasting must be applied by the means for providing the application force.
- This portion can be determined, for example, with the aid of an acceleration sensor attached to the pneumatic cylinder 318 and determining the acceleration due to gravity, or by an angle sensor which determines the angular position of the first arm 324 with respect to the first horizontal axis 326.
- FIG. 5 shows the top view of the blasting basket 505 during overhead blasting from the surface 411 to be machined.
- the suspension is shown the blasting basket 505 by means of the fork 507 and the tapered roller bearing 516.
- the rollers 510 guarantee low-friction guidance of the Blasting basket 505 on the surface to be processed 411.
- the ring Running, multi-row brush seal 512 ensures reliable Sealing the blasting chamber from the environment.
- the blasting material is fed in 513 and this is done in the processes 514 Machining material removed from the blasting basket 505.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Cleaning In General (AREA)
- Spray Control Apparatus (AREA)
- Multi-Process Working Machines And Systems (AREA)
- Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
- Coating Apparatus (AREA)
- Movable Scaffolding (AREA)
Description
das Arbeitsmittel mittels entsprechender Antriebsmittel wieder in eine Grundstellung geschwenkt werden. Als Grundstellung kann dabei beispielsweise die Stellung des Arbeitsmittels gelten, bei der sich eine günstige Führung der Versorgungsschläuche und -leitungen zum Arbeitsmittel, beispielsweise zu einem Strahl- oder Spritzwerkzeug, ergibt. Außerdem können an den beiden Achsen der Aufhängung Positionsaufnehmer, insbesondere Winkelaufnehmer angeordnet sein,
die eine Rückmeldung über die Position der beiden Achsen und damit über die Ausrichtung des Arbeitsmittels in Bezug auf die zu bearbeitende Fläche an eine Steuereinheit geben. Dadurch kann sichergestellt werden, daß
die an der Aufhängung angreifende Anlegekraft stets im wesentlichen in eine Richtung wirkt, die mit der zu bearbeitenden Fläche einen rechten Winkel einschließt. Die von der Gabel der Aufhängung aufgespannte Fläche ist vorzugsweise parallel zu der zu bearbeitenden Fläche oder schließt mit dieser einen spitzen Winkel von 0° bis 30° ein.
Ein hydraulischer Zylinder ist allein oder in Zusammenwirkung mit einem hydraulischen Druckspeicher betreibbar. Vorzugsweise ist er mit einem konstanten und vergleichsweise geringen Druck beaufschlagbar. Bei der Verwendung eines pneumatischen Zylinders läßt sich die Kraftspeicherwirkung aufgrund der Kompressibilität des Arbeitsmediums besonders einfach erreichen. Die sich beim Verfahren des Arbeitsmittels entlang einer vorgebbaren Bahn auf der zu bearbeitenden Fläche ergebenden Abstandsänderungen werden über den Hub der Mittel zum Bereitstellen der Anlegekraft, insbesondere des pneumatischen Zylinders, ausgeglichen. Entlang des Hubweges können mehrere Positionsschalter angeordnet sein, insbesondere an den Endpositionen sowie in einer mittigen Position. Anstelle oder alternativ zu den Positionsschaltern,
die eine diskrete Positionserfassung realisieren, kann auch eine kontinuierliche Positionserfassung der Hubposition des Kraftspeichers vorgesehen sein.
der Ausleger durch Drehen des Oberwagens gegenüber dem Unterbau in Richtung auf die zu bearbeitende Fläche nachgeführt.
die Steuerung der Bewegung des Arbeitsmittels entlang der vorgegebenen Bahn verwendet, um beispielsweise durch die Nachführbewegung bedingte Steuerkorrekturen vornehmen zu können und/oder um
die Bahngeschwindigkeit beim Bearbeiten der Fläche konstant zu halten.
die Bearbeitung von Schweißnähten, einsetzbar oder zum Entfernen von Lack oder sonstigen Schichten oder Verunreinigungen von Flugzeugen.
Das Vorsehen von zwei um 90° versetzt angeordneten Abläufen gewährleistet eine zuverlässige Abführung der durch den Bearbeitungsvorgang entstandenen Abfallstoffe sowohl beim seitlichen Strahlen als auch beim Überkopfstrahlen.
die Zeichnungen ein Ausführungsbeispiel im einzelnen beschrieben wird. Dabei können die in den Ansprüchen und in der Beschreibung erwähnten Merkmale jeweils einzeln für sich oder in beliebiger Kombination erfindungswesentlich sein.
- Fig. 1
- zeigt eine Hubarbeitsbühne mit Strahlkorb beim seitlichen Strahlen,
- Fig. 2
- zeigt eine Hubarbeitsbühne mit Strahlkorb beim Überkopfstrahlen,
- Fig. 3
- zeigt einen Strahlkorb beim seitlichen Strahlen,
- Fig. 4
- zeigt einen Strahlkorb beim Überkopfstrahlen, und
- Fig. 5
- zeigt eine Aufsicht auf den Strahlkorb beim Überkopfstrahlen von der zu bearbeitenden Fläche aus.
Das dargestellte seitliche Strahlen kann beispielsweise an zu bearbeitenden Flächen vorgenommen werden, die mit der Stellfläche 106 der Hubarbeitsbühne 100 einen Winkel zwischen 45° und 90° einschließen.
Der Ausgleich der Abstandsänderung durch den pneumatischen Zylinder 318 erfolgt solange, bis die Nocke 320 mit einem der Endschalter 321 zusammenwirkt. Ein entsprechend generiertes Steuersignal aktiviert einen der doppeltwirkenden Zylinder 327, 334 oder eine Nachführbewegung durch das Ein-/Ausfahren des Auslegers 101, durch eine Drehbewegung des Auslegers 101 gegenüber dem Oberwagen 103 oder durch eine Drehbewegung des Oberwagens 103 gegenüber dem Fahrgestell 101.
Das Nachsteuern kann dabei solange geschehen, bis entweder die Nocke 320 mit dem Endschalter 321 am gegenüberliegenden Ende des Hubes des pneumatischen Zylinders 318 zusammenwirkt oder solange, bis die Nocke 320 mit dem Mittenschalter 322 zusammenwirkt.
Der wesentliche Unterschied gegenüber der Arbeitsweise nach Fig. 3 besteht im Ausfahren des ersten doppeltwirkenden Zylinders 427. Außerdem werden beim Überkopfstrahlen die durch die Bearbeitung entstehenden Abfallstoffe im wesentlichen über den Ablauf 414 vom Strahlkorb 405 abgeführt. Die weitere Funktionsweise, insbesondere das Ausgleichen von Abstandsänderungen zwischen dem Strahlkorb 405 und der zu bearbeitenden Fläche 411, erfolgt in analoger Weise zu der Funktionsweise, wie sie bezüglich der Fig. 3 beschrieben ist. Dabei muß beim Überkopfstrahlen ein gegenüber dem seitlichen Strahlen erhöhter Gewichtskraftanteil von den Mitteln zum Bereitstellen der Anlegekraft aufgebracht werden. Dieser Anteil kann beispielsweise mit Hilfe eines am pneumatischen Zylinder 318 angebrachten und die Erdbeschleunigung bestimmenden Beschleunigungsaufnehmer oder durch einen Winkelgeber bestimmt werden, der die Winkelposition des ersten Arms 324 in Bezug auf die erste horizontale Achse 326 bestimmt.
Claims (10)
- Vorrichtung zum Bearbeiten einer Fläche (311), insbesondere Hubarbeitsbühne (100), mit einem Ausleger (304) oder einer Plattform, einem an der zu bearbeitenden Fläche (311) anlegbaren Arbeitsmittel (305), und mit zwischen dem Ausleger (304) bzw. der Plattform und dem Arbeitsmittel (305) angeordneten Mitteln (318) zum Bereitstellen einer auf das Arbeitsmittel (305) wirkenden Anlegekraft, dadurch gekennzeichnet, daß das Arbeitsmittel (305) an einer Aufhängung (307, 316) um zwei, vorzugsweise einen rechten Winkel einschließende Achsen frei beweglich aufgehängt ist und daß die Mittel (318) zum Bereitstellen der Anlegekraft an der Aufhängung (307, 316) angreifen.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel zum Bereitstellen der Anlegekraft einen Kraftspeicher umfassen, insbesondere einen mit einem konstanten, vorzugsweise mittels eines Druckregelventils einstellbaren Druck beaufschlagbaren pneumatischen oder hydraulischen Zylinder (318), und daß entlang des Hubweges des Kraftspeichers Mittel zum Erfassen der Hubposition des Kraftspeichers angeordnet sind, insbesondere mindestens ein Positionsschalter (321, 322).
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Arbeitsmittel (305) bzw. die Aufhängung (307, 316) gegenüber dem arbeitsmittelnahen Ende des Auslegers (304) mittels erster pneumatischer, hydraulischer oder elektrischer Antriebsmittel (327, 330, 334) um eine erste vertikale Achse (329) und um eine erste horizontale Achse (326, 333) drehbar ist und daß mindestens ein Teil der ersten Antriebsmittel (327, 330, 334) von den Mitteln zum Erfassen der Hubposition steuerbar ist.
- Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß der Ausleger (104) mittels zweiter pneumatischer, hydraulischer oder elektrischer Antriebsmittel teleskopartig aus- und einfahrbar ist, gegenüber einem Oberwagen (103) um eine zweite horizontale Achse und der Oberwagen (103) gegenüber einem Unterbau, insbesondere einem Fahrgestell (101), um eine zweite vertikale Achse (102) drehbar ist, und daß mindestens ein Teil der zweiten Antriebsmittel von den Mitteln zum Erfassen der Hubposition steuerbar ist.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Arbeitsmittel einen Arbeitskorb (305) umfaßt, insbesondere einen ein Strahlwerkzeug zum Reinigen der Fläche umfassenden Strahlkorb.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Arbeitskorb (305) eine Zuführung (313) für ein Arbeitsmedium, insbesondere für ein Strahlmittel, und zwei um etwa 90° versetzt angeordnete Abläufe (314), insbesondere Absaugöffnungen, aufweist.
- Verfahren zum Betrieb einer Vorrichtung nach einem der Ansprüche 1 bis 6 mit den Schritten:Anlegen des Arbeitsmittels (305) an die zu bearbeitende Fläche (311),Bewegen des Arbeitsmittels (305) entlang einer vorgebbaren Bahn, undAusgleichen der sich durch das Bewegen entlang der Bahn ergebenden Änderungen des Abstandes zwischen dem Arbeitsmittel (305) und der Fläche (311) durch die Mittel (318) zum Bereitstellen der Anlegekraft.
- Verfahren nach Anspruch 7 zum Betrieb einer Vorrichtung nach einem der Ansprüche 4 bis 6 mit dem Schritt:Nachführen der Mittel (318) zum Bereitstellen der Anlegekraft mittels der ersten oder zweiten Antriebsmittel entsprechend der Steuerinformation der Mittel zum Erfassen der Hubposition, insbesondere wenn ein erster Positionsschalter (321) an einem ersten Ende des Hubes des Kraftspeichers (318) betätigt wird, solange bis ein zweiter Positionsschalter, insbesondere am gegenüberliegenden zweiten Ende des Hubes des Kraftspeichers (318), betätigt wird.
- Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß das Bewegen des Arbeitsmittels (305) entlang der vorgebbaren Bahn durch das Aus- und Einfahren des Auslegers (104) und die Bewegung des Oberwagens (103) gegenüber dem Unterbau um die zweite vertikale Achse (102) oder die Bewegung des Auslegers (104) gegenüber dem Oberwagen (103) um die zweite horizontale Achse steuernde, insbesondere speicherprogrammierbare Steuereinrichtung gesteuert wird, und daß das Nachführen der Mittel (318) zum Bereitstellen der Anlegekraft durch eine Bewegung des Auslegers (104) gegenüber dem Oberwagen (103) um die zweite horizontale Achse beziehungsweise durch eine Bewegung des Oberwagens (103) gegenüber dem Unterbau um die zweite vertikale Achse (102) erfolgt.
- Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß die Nachführbewegung eine Eingangsgröße für die Steuerung der Bewegung des Arbeitsmittels (305) entlang der vorgebbaren Bahn bildet.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19808691 | 1998-03-03 | ||
DE19808691A DE19808691A1 (de) | 1998-03-03 | 1998-03-03 | Hubarbeitsbühne und Verfahren zum Betrieb einer Hubarbeitsbühne |
PCT/EP1999/001344 WO1999044788A1 (de) | 1998-03-03 | 1999-03-02 | Vorrichtung zum bearbeiten einer fläche, insbesondere hubarbeitsbühne, und verfahren zum betrieb einer solchen vorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1060052A1 EP1060052A1 (de) | 2000-12-20 |
EP1060052B1 true EP1060052B1 (de) | 2002-02-06 |
Family
ID=7859353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99913210A Expired - Lifetime EP1060052B1 (de) | 1998-03-03 | 1999-03-02 | Vorrichtung zum bearbeiten einer fläche, insbesondere hubarbeitsbühne, und verfahren zum betrieb einer solchen vorrichtung |
Country Status (8)
Country | Link |
---|---|
US (1) | US6464569B1 (de) |
EP (1) | EP1060052B1 (de) |
JP (1) | JP2002505202A (de) |
KR (1) | KR20010041532A (de) |
CN (1) | CN1096916C (de) |
DE (2) | DE19808691A1 (de) |
ES (1) | ES2172984T3 (de) |
WO (1) | WO1999044788A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202005011280U1 (de) * | 2005-07-18 | 2006-11-23 | Kinshofer Greiftechnik Gmbh & Co. Kg | Hub-/Schwenkvorrichtung für Ladebordwände und/oder -rampen |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6656016B1 (en) * | 2002-08-16 | 2003-12-02 | Fosbel Intellectual Ag | Sand blasting apparatus and methods |
US6699109B1 (en) * | 2002-08-27 | 2004-03-02 | General Electric Company | Apparatus and method of removing abradable material from a turbomachine fan containment case |
US6976972B2 (en) * | 2003-09-09 | 2005-12-20 | Scott Orthotic Labs, Inc. | Suspension walker |
JP4968866B2 (ja) * | 2007-03-08 | 2012-07-04 | 株式会社メンテックワールド | アスベスト自動除去装置及びその使用方法 |
FR2924703B1 (fr) * | 2007-12-11 | 2010-01-15 | Gimaex Internat | Dispositif elevateur aerien et vehicule equipe d'un tel dispositif |
US8360827B1 (en) * | 2010-03-09 | 2013-01-29 | Coughtry Richard J | Road marking removal system and method |
US8894467B2 (en) * | 2011-06-23 | 2014-11-25 | Robert J. Santure | Surface media blasting system and method |
KR101324575B1 (ko) | 2011-10-10 | 2013-11-01 | 삼성중공업 주식회사 | 그리트 흡입모듈 |
CN103537990A (zh) * | 2013-08-06 | 2014-01-29 | 湖南星邦重工有限公司 | 一种自适应船体表面进行喷丸的高空作业平台 |
CA2945598A1 (en) * | 2014-05-12 | 2015-11-19 | Linepro Equipment Ltd. | Vehicle mounted boom assembly with a washer attachment |
CN106944934B (zh) * | 2017-04-24 | 2023-07-04 | 贵州金石车载式流动打砂机制造有限责任公司 | 动力转换式的可移动小型打砂机 |
CA2986535A1 (en) * | 2017-10-18 | 2019-04-18 | Quanta Associates, L.P. | Systems and methods for drying and cleaning an aerial lift electrically insulated boom |
KR102450168B1 (ko) * | 2021-03-02 | 2022-10-04 | (주)대불조선 | 공정 개선을 위한 추적식 블라스팅 장치 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4286417A (en) * | 1979-08-08 | 1981-09-01 | Robert T. Nelson | Blasting machine with position sensing and adjustment |
EP0102388A1 (de) * | 1982-03-01 | 1984-03-14 | HOCKETT, Wayne B. | Universelles reinigungsgerät |
US4545156A (en) * | 1982-03-01 | 1985-10-08 | Hockett Wayne B | Universal abrasive cleaning apparatus |
US5138800A (en) * | 1991-04-30 | 1992-08-18 | Compustrip Systems Ltd. | Positioning apparatus for supporting and guiding a tool |
DE9310642U1 (de) * | 1993-07-16 | 1993-10-21 | Ernst Peiniger GmbH Unternehmen für Bautenschutz, 45145 Essen | Flächenstrahlvorrichtung |
CA2139558A1 (en) * | 1994-01-14 | 1995-07-15 | Robert B. Watkin | Oscillating blast cleaner |
-
1998
- 1998-03-03 DE DE19808691A patent/DE19808691A1/de not_active Withdrawn
-
1999
- 1999-03-02 DE DE59900829T patent/DE59900829D1/de not_active Expired - Lifetime
- 1999-03-02 WO PCT/EP1999/001344 patent/WO1999044788A1/de not_active Application Discontinuation
- 1999-03-02 EP EP99913210A patent/EP1060052B1/de not_active Expired - Lifetime
- 1999-03-02 CN CN99803555A patent/CN1096916C/zh not_active Expired - Fee Related
- 1999-03-02 JP JP2000534373A patent/JP2002505202A/ja active Pending
- 1999-03-02 ES ES99913210T patent/ES2172984T3/es not_active Expired - Lifetime
- 1999-03-02 US US09/623,362 patent/US6464569B1/en not_active Expired - Lifetime
- 1999-03-02 KR KR1020007009705A patent/KR20010041532A/ko not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202005011280U1 (de) * | 2005-07-18 | 2006-11-23 | Kinshofer Greiftechnik Gmbh & Co. Kg | Hub-/Schwenkvorrichtung für Ladebordwände und/oder -rampen |
Also Published As
Publication number | Publication date |
---|---|
ES2172984T3 (es) | 2002-10-01 |
CN1291930A (zh) | 2001-04-18 |
KR20010041532A (ko) | 2001-05-25 |
DE59900829D1 (de) | 2002-03-21 |
JP2002505202A (ja) | 2002-02-19 |
US6464569B1 (en) | 2002-10-15 |
EP1060052A1 (de) | 2000-12-20 |
DE19808691A1 (de) | 1999-09-09 |
CN1096916C (zh) | 2002-12-25 |
WO1999044788A1 (de) | 1999-09-10 |
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