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OwnerJochen Beck, Dieter Roth +1inventors
InventorsJochen Beck, Dieter Roth, Ulrich Heinz
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The invention relates to a control and adjustment system for a lifting mechanism (100) of a loading blade (6) in a mobile machine tool. Said lifting mechanism is made up of at least one first and second blade cylinder (1, 2), at least one first and second lifting cylinder (61, 62) and one first and second hydropump (15, 75) which can be adjusted with regard to the pump volume. The adjusting pistons (3, 5) which can be displaced in the first and second blade cylinders (1, 2), respectively, separate both blade cylinders (1, 2) into two adjusting pressure chambers (7 and 8, 9 and 10). The adjusting pistons (63, 65) which can be displaced in the two lifting cylinders (61, 62) respectively separate the two lifting cylinders (61, 62) into the two adjusting pressure chambers (67 and 68, 69 and 70) in an analogous manner. In a first closed hydraulic circuit, a first and the second connection (14, 17) of the first hydropump (15) is, respectively made to the piston side of the piston pressure chamber (7, 9) of one blade cylinder (1, 2) and to the piston rod side of the adjusting pressure chamber (10, 8) of the other blade cylinder (2, 1). The first and second connection (74, 77) of the second hydropump (75) is respectively made in a second closed hydraulic circuit to a piston side adjusting pressure chamber (70, 67) of a lifting cylinder (62, 61) and to the piston rod side of the adjusting pressure chamber (68, 69) of the other lifting cylinder (61, 62).
Lifting mechanism with a hydraulic control and adjustment system and a working tool in a mobile machine with at least a first and second lifting cylinder, in which cylinder pistons are displaceable, the position or direction of movement of which in the lifting cylinders fix the lifting height or the vertical direction of movement of the working tool relative to a vehicle body of the mobile machine, wherein each of the cylinder pistons divides the associated lifting cylinder into two adjusting pressure chambers in each case and with a first hydraulic pump, adjustable in respect of the discharge volume, the first connection of which is connected depending on the vertical direction of movement of the working tool to one of the adjusting pressure chambers of the first lifting cylinder and one of the adjusting pressure chambers of the second lifting cylinder and the second connection of which is connected in a closed circuit to the other adjusting pressure chamber of the first lifting cylinder and the other adjusting pressure chamber of the second lifting cylinder,
Tilting mechanism with a hydraulic control and adjustment system and with a loading shovel serving as a working tool in a mobile machine with at least a first and second shovelling cylinder, in which cylinder pistons are displaceable, the position or direction of movement of which in the shovelling cylinders fix the tilting angle or the tilting direction of the loading shovel relative to a vehicle body, wherein each of the cylinder pistons divides the associated shovelling cylinder into two adjusting pressure chambers in each case, and with a second hydraulic pump, adjustable in respect of the discharge volume, the first connection of which is connected depending on the tilting direction of the loading shovel to one of the adjusting pressure chambers of the first shovelling cylinder and one of the adjusting pressures chambers of the second shovelling cylinder and the second connection of which is connected in a closed circuit to the other adjusting pressure chamber of the first shovelling cylinder and the other adjusting pressure chamber of the second shovelling cylinder,
Dependencies are inferred from the claim text.