Hydraulic precision leveling machine

Abstract

The invention discloses a hydraulic precision leveling machine which comprises an upper roller group, a lower roller group, a load bearing beam, a machine base and four upright posts, wherein the upper roller group and the lower roller group are respectively and fixedly provided with power decelerating devices, the load bearing beam is composed of an upper beam and a lower beam which is fixedly arranged on the machine base, the upper roller group is fixedly connected with the upper beam, the lower roller group is fixedly connected with the lower beam, the four upright posts are respectively and fixedly sheathed on four corners of the lower beam, and the upper beam can be movably sheathed on the four upright posts. Both the upper roller group and the lower roller group comprise a plurality of leveling rollers, wall plates, a plurality of support brackets, a plurality of fixing shafts and a plurality of support jockey pulleys, wherein the leveling rollers are arranged side by side and can be rotatablely supported on the wall plates on both sides, the fixing shafts are supported on the support brackets, and the support jockey pulleys can be rotatablely sheathed on the corresponding fixing shaft. The hydraulic precision leveling machine has the advantages of high leveling precision, simple structure and low manufacturing cost, and leveling requirements for plates with different thicknesses can be satisfied.

Description

technical field [0001] The invention relates to a hydraulic precision leveler, which belongs to the technical field of mechanical equipment. Background technique [0002] At present, most of the precision levelers in the prior art have the upper beam not moving, while the lower beam is lifted and lowered by an oil cylinder. For example, Chinese patent CN201644559U discloses a leveler, the upper beam is fixed on the column, and the lower beam can be lifted. Slidingly set on the column, there is an oil cylinder between the lower beam and the machine base, and the piston rod of the oil cylinder is used to move up and down to achieve the up and down movement of the lower beam. The disadvantage of this type of leveling machine is: when the oil cylinder is used for too long, the oil cylinder There will be fatigue, and it is difficult to bear the lower beam, making it very difficult to move the lower beam up and down. Moreover, when the leveler is working, because the oil cylinder...

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Problems solved by technology

[0002] At present, most of the precision levelers in the prior art have the upper beam not moving, while the lower beam is lifted and lowered by an oil cylinder. For example, Chinese patent CN201644559U discloses a leveler, the upper beam is fixed on the column, and the lower beam can be lifted. Slidingly set on the column, there is an oil cylinder between the lower beam and the machine base, and the piston rod of the oil cylinder is used to move up and down to achieve the up and down movement of the lower beam. The disadvantage of this type of leveling machine is: when the oil cylinder is used for too long, the oil cylinder There will be fatigue phenomenon, it is difficult to bear the lower beam, making it very difficult to move the lower beam up and down, and when the leveler is working, because the oil cylinder has to bear the weight of the lower beam, the force applied to the lower beam will be uneven, affecting The leveling effect of the leveling machine on the plate; this type of leveling machine cannot maintain the gap between the upper beam and the lower beam, and cannot meet the requirements of different thicknesses of the plate; the leveling roller of this type of leveling machine will also occur during work. Bending deformation phenomenon, the leveling effect on the plate is not ideal, and it also increases its maintenance cost

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