EP1329414B1 - Material handling machine - Google Patents

Description

The invention relates to a material handling device according to the preamble of the claim 1.

Already from DE-A-199 09 356 is a generic material handling device known. This has an undercarriage and a direct by means of a turntable with this connected superstructure having a power unit and a Counterweight includes, as well as mounted on a gantry work equipment and a cab connected to the gantry. The gantry with driver's cab can by means of an intermediate construction or a spacer construction be attached to the superstructure so that the working equipment in greater distance from the ground is arranged on the material handling device.

In known material handling equipment, the kinematics of the boom is designed to that the highest possible loads were taken in the vicinity of the material handling device can be. When using the previously known material handling equipment For unloading ships arises here but the problem that high Payloads must be recorded at long distances and below ground.

From EP-A-0 713 839 a construction crane is known as loading aid for flatbed vehicles, containing the features of the preamble of claim 1. This construction crane contains for adjusting a luffing jib up to a first Wipplager a first hydraulic cylinder pair, while for adjusting the boom after below a second Wipplager a second pair of hydraulic cylinders is necessary.

The object of the invention is therefore, the generic material handling device in such a way that on the one hand in addition to the usual industrial use optionally also a performance-optimized use during unloading and loading of Ships is possible, the structure of the material handling equipment as possible should be easy to do.

According to the invention this object is based on the generic material handling device by the combination with the characteristic features of claim 1. Accordingly, at the turntable and / or on the boom foot provided at least one additional pivot point for the boom, so that the articulation point of the boom is optionally changeable. Furthermore, in the boom or in a joint plate provided on the boom at least one additional Anchoring point provided so that the pivot point of the at least one Lifting cylinder is optionally changeable. This will make better load capacity with long range and depth on the one hand in the usual industrial application and on the other hand when handling goods during loading and unloading, for example from Ships. Thus, by appropriate choice of the Anlenkpunkts the maximum moment of the cylinder from a comparatively steeper angle of attack of the boom to be moved to a shallow angle of attack of the boom. This leads to a reduction of high loads near the device and to an increase the loads at long distances and below ground.

Preferred embodiments of the invention will become apparent from the to the Main claim subsequent claims.

Accordingly, the articulation points provided in the turntable holes be, with the boom pivoting about suitable in the bores with bolts the turntable is fastened. Due to this structural design of the Invention, the boom by simply bolting to the selected use be adapted to the material handling device.

According to the invention, at least one lifting cylinder for lifting and lowering the Jib on the one hand on the revolving stage and on the other hand on a boom provided hinged joint plate. Particularly advantageous is on the hinge plate at least one additional articulation point is provided in addition to the usual articulation point, so that the articulation point of the lifting cylinder is optionally changeable. This also allows the angle of attack of the boom, in which the maximum Moment is reached, but changing the overall swing angle of the boom can stay constant.

A particularly advantageous embodiment of the invention results from the fact that the first and second articulation point for the boom and the articulation point for the at least one lifting cylinder in a connectable with the turntable bearing block are provided. It can according to the invention now modular-type bearing blocks be provided of different lengths, so that the respective pivot points respectively by choosing a bearing block in their position opposite the revolving stage be varied. This results in any kinematic variation possibilities. The use of these bearing blocks is especially for the handling operation advantageous in the loading and unloading of ships, as a result, for example a higher articulation of the boom and thus a flatter angular position to Schiffswand is achieved. Thus, arms and stems can be shorter and lighter be executed. Corresponding raised bearing blocks can also be used for the Advantageously use scrap shear feed.

Figur 1:

eine schematische Darstellung eines an einer Drehbühne angelenkten Auslegers in unterschiedlichen Stellungen gemäß einer ersten Ausführungsform der vorliegenden Erfindung,

Figur 2:

eine der Figur 1 entsprechende Darstellung, bei welcher der Ausleger eine andere Kinematik aufweist,

Figur 3:

eine der Figur 1 bzw. Figur 2 entsprechende Darstellung des Auslegers, bei dem dieser eine wiederum unterschiedliche Kinematik aufweist,

Figur 4:

eine Seitenansicht eines Unterwagens eines erfindungsgemäßen Materialumschlaggeräts mit auf diesem aufgesetzter Drehbühne, sowie auseinandergezogene Teile der Drehbühne,

Figur 5:

eine schematische Darstellung eines Materialumschlaggeräts im Einsatz mit unterschiedlichen Positionen des Auslegers und

Figur 6:

eine der Figur 5 entsprechende Darstellung eines Materialumschlaggeräts der vorliegenden Erfindung.

Further details and advantages of the invention will be explained in more detail with reference to an embodiment shown in the drawing. Show it:

FIG. 1:

1 is a schematic representation of a jib articulated on a revolving platform in different positions according to a first embodiment of the present invention;

FIG. 2:

1 representation in which the boom has a different kinematics,

FIG. 3:

2 shows a representation of the cantilever corresponding to FIG. 1 or FIG. 2, in which the latter in turn has different kinematics,

FIG. 4:

a side view of a undercarriage of a material handling device according to the invention with on this mounted rotary platform, as well as exploded parts of the revolving stage,

FIG. 5:

a schematic representation of a material handling equipment in use with different positions of the boom and

FIG. 6:

a representation corresponding to Figure 5 of a material handling device of the present invention.

FIG. 1 shows a part of a handling device which has a turntable 12 has, to which a boom 14 is articulated. The boom 14 is shown here Embodiment composed of two cantilever arms 16 and 18, which in turn are hinged together about a pivot point 20, wherein the two arms via a hydraulic cylinder arrangement, not shown here are mutually pivotable. The boom 16 is over a Bolt in a bore 22 in the turntable 12 pivotally fixed. The lifting and lowering of the boom 16 via a lifting cylinder 24, on the one hand at a pivot point 26 in the turntable 12 and on the other hand in a pivot point 28 on a Anlenkblech 30 which is attached to the boom 16, attacks. Here only one lifting cylinder 24 is shown in FIG. The one shown here However, variant has two parallel lifting cylinder on. In Figure 1, the usual industrial kinematics is shown in which the maximum Moment of the lifting cylinder 24 at a steeper angle of attack of the boom 16 is achieved.

In Figure 2, the boom 16 is about its connecting bolt with a bore 32nd connected in the revolving stage 12, said bore higher and relative to the Fulcrum of the revolving stage is arranged further forward. This bore 32 of the Revolving platform 12 is hereinafter referred to as "ship bore", while the bore 22 is referred to as "industrial bore". At the same time is to achieve the same Kinematics, i. the same initial and final angle of the boom 16 of the Cylinder 24 at an offset in the bearing plate 30 arranged articulation point 34th hinged. With this kinematics, the maximum torque of the lifting cylinder 24 at achieved a relatively shallow angle of attack of the boom. That means that Material handling device with comparatively longer ranges and also under reason can absorb higher loads.

In Figure 3, the boom 16 is also in the ship bore 32 of the revolving stage 12th hinged. Here, however, the lifting cylinder 24 in the same bore 28 on Anlenkblech 30 hinged, as in the embodiment of Figure 1 of the case was. The angle of attack of the boom of the maximum torque is thus between the steep and flat angle of the previous kinematics, but results from this a different total swivel angle.

As a result, the maximum achievable with the lifting cylinder 24 torque at a Angle of the boom 16 of 22.7 degrees achieved.

Thus, by simply re-bolting the boom 16 and the or the Lifting cylinder 24 varies the optimal working areas of the material handling equipment become.

FIG. 4 shows the undercarriage 35 of the material handling device. On this is shown on a turntable 36, the revolving stage. The revolving stage 12 is in here illustrated embodiment variant equipped with a separate bracket 38, to the holes 32 and 22 for the boom 16 (not shown here) are provided and the bore 26 for the or the lifting cylinder 24th

In the exploded view in Figure 4a, the revolving stage 12 is isolated shown with two bearing blocks 38 and 39 of different geometry. The Bearing blocks 38 and 39 are releasably connected to the revolving stage 12th connected. The bearing blocks 38 and 39 have a different height. These bearing blocks shown here are only exemplary embodiments of a Modular box, which allows the articulation points 32, 22 and 26 in a desired Position to position the turntable 12.

FIG. 5 shows a handling device without a bearing block elevation. On the one hand with the Boom not to collide with the ship's wall, and on the other hand, the entire To unload the ship's bottom is a relatively long boom and a long handle required.

FIG. 6 shows a handling device with bearing block elevation. In comparison to FIG. 5 Boom and stick can be shorter and thus made lighter. Here can one Collision of boom and ship are effectively prevented. The entire ship's floor is accessible from the envelope tool, so here is a capture of the unloaded material at any point of the ship's bottom is possible without problems. The bearing block is located within the device tilting edge and thus provides additional for a stamina increase.

Claims (3)

1. A material handling appliance comprising an undercarriage and a rotating deck (12) which is connected to the latter by a slewing ring and to which a boom (14) is pivotably hinged which is pivotable via at least one lifting cylinder,
   characterized in that
   the at least one lifting cylinder (24) is secured to the rotating deck (12) at a pivot point (26) and is connected to the boom (14) via a second pivot point (28);
   in that the boom is connected to the rotating deck (12) via a first pivot point (22);
   in that at least one second, additional pivot point (32) for the lower end of the boom is provided at the rotating deck (12) and/or at the lower end of the boom;
   in that at least one third, additional pivot point (34) for at least one lifting cylinder (24) is provided in the boom (14) or in a pivot metal sheet (30) provided at the boom
   so that the at least one lifting cylinder can be optionally secured to the first pivot point (28) or to the additional second pivot point (34).
2. A material handling appliance in accordance with claim 1, wherein the pivot points are bores provided in the rotating desk (12) or in the lower end of the boom and wherein the boom (14) is pivotably secured via bolts fitting in the bores.
3. A material handling appliance in accordance with either of claims 1 or 2, wherein the at least two pivot points (22, 32) for the boom (14) and the pivot point (26) for the at least one lifting cylinder (22) are provided in a bearing bock (38, 39) connectable to the rotating deck (12).

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