The upper roller can make vertical elevation or horizontal shift.The vertical elevation is hydraulic driving,which is achieved by the action of the oil in the hydraulic cylinder on the piston;the horizontal shift is achieved through the torques from the lead screw cabinet,worm and the structure of screw and worm.The lower roller makes rotation,providing torque for bending and rolling.On the lower side of the lower side of the lower roller,there is support roller for adjustment,The upper roller is in drum shape for enhancing the straightness of the product,The machine fits bending various cylinder bodies.
There are such types for the plate rolling machine for special vehicles as follows:
a) Upper roller universal:Upper roller can not only ascend and descend vertically but also can move horizontally.The two lower rollers remain relatively fixed.
b) Three roller symmetrical:Upper roller can ascend and descend vertically.The two lower rollers remain relatively fixed.
c) With upper beam:Press roller is set at the upside of the upper roller and lower side of the upper beam,improve the stiffness strength of the upper roller witch is with smaller diameter,it's good for roll the can with small fillet radius.