Three-Roll Downward Horizontal Bending Machine

1. The structure of the equipment The machine belongs to the hydraulic three-roller plate bending machine, which is used to roll the steel plate into a cylindrical, circular arc androundingfunction; The upper roller can bemovedvertically; The pre-bending is achieved by the horizontal movement of the lower roller, and the lower roller is in an asymmetricalpositionrelative tothe upper roller; When rounding andcalibrating, the workingrolleris driven to provide the coiling torque for the coiled sheet; The elevation of the lower roller remains unchanged, which is convenient for feeding and operation;  2.Main technical parametersNoName Unit Parameters 1Three roll plate bending machine type/Variable center distance lowerrollerleveladjustable2Rolled sheets yield to the limitMPa≤2453Maximum coil thicknessmm1504Maximum pre-bent plate thicknessmm455Minimum roll diameter at full loadmmF20 006Maximum bin widthmm32007Remaining straight edge thicknessmm≤2.5times the thickness of the plate8Roll speedm/min49Upper roll diametermmF46010Lower roll diametermmΦ40011Two lower rollercenter distancesmm480-68012Work rollermaterial/42CrMo (temperedHB260-300).13The way the working rollermoves/Hydraulic cylinderdriven14Hydraulic system pressureMPa2015Hydraulic motor torqueKN.m1216Total installed powerKW5017Hydraulic cooling system/Oil cooler18Roller drive method/Hydraulic motor +planetary gear reducer19Lubrication system/It adopts automatic lubrication at start-up and timed forced lubrication20operating system/Two sets of operation systems: remote control and movable operating platformsystem, but mutually secure interlocking, only one system can be used at a time. Touchscreen movable operator station. 21Control mode/Manual (wireless) + electronically controlledMain structur  NoName1)Front frame2)Rear frame3)chassis4)Roll on5)Coupling6)Planetary reduction gears7)Hydraulic motor8)Lower roller9)The upper roller moves the drag plate10)The lower roller moves the cylinder11)Front opening unit12)Reverse and support systems13)Hydraulics and systems14)Power supply unit15)Control cabinet16)Protection and security equipmentThe main structural components of the bending machine are as follows:1) Mechanical structure2) Upper rollerdevice3) Lower rollerdevice4)Overturningdevice5) Option attachments6) Hydraulic system7) Lubrication system8) Electrical system9) Safety device3-1. Upper roller device1) Upper roller 2) Hydraulic motor 3) Reduction gear 4) Overturn bearing seat 5) Fixed bearing housing 6)Main oil Cylinder 7)Skateboard(Illustration of upper roller device).The upper roller device is mainly composed of upper roller, main oil cylinder, upper roller bearing seat, double row spherical rolling bearing, etc.The material of the upper working roller is 42CrMo, which has high strength and toughness, and is heat treatedHB260~300. The upper roller is preset with a drum shape with 50%uniform load, which improves the rigidity of the upper roller and greatly improves the straightness of the product. Two master cylinders provide the pressing force required to coil the plate, the cylinder block is 45 and the piston is 45steel forgings, the tempering treatment is HB215-255,and the main cylinder isYxseal. Double row spherical bearings are selected for low-speed, heavy-duty bearings.The lifting and lowering synchronization of the upper roller is controlled by PLC, and the synchronization accuracy is ±0Within 20mm. Both ends of the upper roller can be raised and lowered independently in order to realize the coiling of the cone. The main transmission device is composed of hydraulic motor+planetary reducer, whichdirectly drives the upper roller. The main drive can be reversed forward and reverse to power the coiling of the plates.A hydraulic motor that converts pressurized fluid energy into mechanical energy and then to the shaft via planetaryreduction gears.                                          1)Hydraulic motor 2) cycloid reduction gear  3) coupling 4) stop gear 3-2.Lower roller and horizontalmoving device1) Lower roller 2) side hydraulic cylinder 3) bearing housing 4) slide plate 5) guide rail 7) horizontal guide 8)Anti-collision travellimitblock 9)Position sensor(Illustration of lower roller device).The lower roller device is composed of lower roller, lower roller bearing seat, double row spherical rolling bearing, etc. The material of the lower working roller is 42CrMo, which has high strength and toughness, and is heat treatedHB260~290. Double row spherical bearings are selected for low-speed, heavy-duty bearings.The horizontal movement of the lower roller is driven by the cylinder respectively, the structure is external, and it is installed on the inside of the frame bed; The overall horizontal movement synchronization of the lower roller is controlled by thePLC, and the synchronization accuracy is ±0Within 2mm.3-3. Frame,support beam and chassispartThe mechanical structure of the machine is mainly composed of 3) bed, 4) frontframe 1) rearframe 2)The b