IPDB › China Industry › Manufacturing & Processing Machinery › Hydraulic Press
3150 Ton Four Posts Structure Oil Hydraulic Press1
Hydraulic Press, Hydraulic Press, Forging Press
Jinan Linteng Technology & Trade Co., Ltd.
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Product Description Open die forging press800t-15000tOil hydraulicWorking pressure 25MPa, 31.5MPa, 63MPa, 100MPa2-column / 4-columnPrestressing frameWelding beam / casting beamMoveable working tableRotary forging tableRexroth pumpSpecial designed cartridge valvesSiemens PLC 1,Main functions and features1.1 Main functions:This press is mainly used for traditional open die forging process(billet cogging,upsetting,stretching,bending,twisting,cutting,offsetting,etc).1.2 Features:1.2.1 The control system has two working modes: maunal and linkage.In linkage mode you can fast stretching and fast reaming. The size control precision is: ±2mm. The frequency of high speed forging is more than 60 times/min.1.2.2 The hydraulic system adopts two-way cartridge valve integrated system, and electrical control system is PLC programmable controller, operation reliability. 1.2.3 There is positioning mechanism to measure and control the position of the slider and movable working table. 1.2.4 The hydraulic press linkage with forging manipulator,one driver operate the press & manipulator.1.2.5 The press has a pressure rating function,save energy,improve efficiency. 1.2.6 It has reliable measure of fire protection. 2,Overview of structureThe press is four-column structure,mainly consist of main frame,cylinder,moving working table, hydraulic system, electric control system, lubrication system and other components. Through the pipe and electrical installations combined to form a whole, the main parts of the structure are described as below.2.1 Main Frame Main body is consisting of the upper beam, slider, table, column, lock nut, adjusting nut and so on. Host beam, table with the lock nut tightened force fixed to form a closed frame. The master cylinder, return cylinder are installed onto the up beam horizontal center line, the cylinder piston rod connected with the slider, the driver depend on four columns for the slider up and down direction. The master cylinders are plunger-type structure, center cylinder output force is 18000kN,each of the two side cylinder output force is 6000kN.2.1.1 Upper BeamUpper Beam is cast steel ZG270-500,annealing treatment after casting,stress relieving.There are mounting holes for the master, return cylinders and holes for four columns.2.1.2 SlidesSlider is made by ZG270-500 cast steel,annealing treatment after casting,stress relieving.The top of slider is connected with the master cylinder piston rod combined with the flange bolts.The downside of slide has positioning device,there are column holes processing on each four corners with guide sleeves.2.1.3 Working TableWorking Table is made by ZG270-500 cast stee,annealing treatment after casting,stress relieving, working table has located with column holes, the plane is equipped with guide plates,its material is abrasive resistant material.2.1.4 ColumnColumn material use 45 # forged steel, both ends of procedure has 45 o moment profile thread, close to the table there are column protection covers, guide sleeve material is made by ZQSn6-6-3.Columns are thermal refining,guiding parts quenching treatment at medium frequency,hardness:HRC45-52, oriented part rolling treatment.Diameter 470mm.2.1.5 Nuts45 # forged steel nut material, with hole processing at 45 o thread profile moments, with round columns to match the threads to locking main body2.2 Oil Cylinder2.2.1 The master cylinders and return cylinder are plunger type,good quality seals inside fuel tank.Steel cylinder use 35# forged steel piece, plunger rods are 45 # steel forgings,surface quenching treatment, hardness is HRC45~52,circumcircle grinded, guiding sleeve materials is ZQSn6-6-3, one end of the plunger is plug into sliders. Three master cylinder piston diameters are Φ500,Φ880,Φ500. 2.2.2 Moving working table push to pull cylinder is plunger cylinder, the cylinder material is 45 # forged steel, plunger material is 45 # forged steel, surface quenching treatment,hardness is HRC45~52,cylindrical grinded,one end of plunger rod is connected with moving table,guiding sleeve material is ZQSn6-6-3.2.3 Moving Working TableMoving working table is used for easy modes replacement and forging die moved, The material of moving table is ZG270-500 cast steel, table bear the weight of the die sets and working load, and transfer to the body table,under platform are equipped with the guide plate its material is 45 # forged steel, the quenching hardness is HRC42~52, the table moved back and forth is driven by two horizontal cylinders3,Hydraulic control systemThe hydraulic control system consists of cylinder,oil pump motor group,two-way cartridge valve,liquid-filled devices,pipeline,oil tanks and other components.With electric system to control cylinder to drive the slider to move, to complete a variety of process action.3.1 oil pump motor groupmain oil pump motor group: 9. each group consists of 2 sets high-pressure pumps & 1 set motor (200KW)3.2 two-way cartridge valvesThe Hydraulic system control valve block uses two-way cartridge valves, It has the advantages of simple structure,large flow capacity,anti-pollution ability,reliability,fast response,flexible control, etc.Since the machine has a fast forging process requirements,the master cylinder to the hydraulic control system of relief loop adopted proportional control loop (fast forging valve) to meet the master cylinder pressure relief rapidly, reduce relief shock and noise.3.3 fuel tank pipelineThe main fuel tank of The hydraulic control system is placed on the ground,fuel tank consists of the oil return tank and the absorption tank equipped with a separate hydraulic oil cooling and filtering system.The fuel tank is steel plate welded,with passive anti-rust treatment. The oil pump motor group is arranged at one side of the tank;some valve blocks and cooling,filtering motor pumps group is placed on the upper plane of the tank. oil pump motor group, the main fuel tank, cabinet separated with the host to form a clean, relatively independent space.Hydraulic shock and vibration in the press hydraulic system is large,so the hydraulic system piping all joints should be sealed using a special axial flange connection,and set additional shockproof tube cards as requirement,set reasonable piping according to its technical characteristics, reduce energy loss, to prevent leakage.The oil tank has a level display function if the oil level is too low,must fill the oil tank to the standard level.3.4 The press filling loop normally adopted closed valve,and its main role is to provide the master cylinder suction oil, when the slider down quickly, due to the negative pressure chamber of the master cylinder, the filling valve opening,a lot of oil suction in the fuel tank, when the slider stops moving, filling valve closed,open filling the spool so that liquid-filled tank to drain the oil from the control slider backhaul.3.5 The press hydraulic system should have a cooling filter, make sure the oil temperature below 50 oC.Hydraulic press oil temperature should be >10 oC and <60 oC. When the oil temperature is lower than 10 oC, the press can not work; only after preheated to 10 oC, can the press operate. when the oil temperature reaches up to 50 oC,should open cooling water, cool down the oil. when oil temperature reaches up to 60 oC should stop working to check,ensure the system working under allowed temperature range.The hydraulic oil cooling and filtering are equipped with a separate circulation system which starts to circulate automatically after operation. There is a large-capacity precision filter in the circulation filter system,with the audio alarm warning when the dirt of filter is blocked to indicate maintenance personnel to clean or replace the filter.4,Electrical control system Three-phase five wire system AC power supply voltage is 380V, 50Hz; control circuit is AC 220V; pilot solenoid valve control power is AC 220V.It is equipped With specialized electrical control cabinets, one main control cabinet, the electrical components used for driving (such as the power switch, air switch,AC contactor, control transformer, leakage protection) are housed inside the cabinet.inside the cabinet the light and the Ventilation facilities (air heat exchanger).Main control cabinet is installed with the PLC(Germany SIMENSE),The Control panel is also set various buttons and joysticks.Master manipulator cabinet placed on the floor next to the press, easy manipulation and observation.4.1 The operation of hydraulic can be manual, linkage,exchanged by the switch.4.1.1 Manual operation: press the manual button there is a corresponding action. If you raise your finger, the action will stop.4.1.2 Linkage action: action with manipulator.4.2 Working modes: open die forging process5,Lubrication System5.1 It use lubrication pump with electric focus on program-controlled automatic lubrication system that can control the run time and pause time of the pump. 5.2 Lubricated position are four column guide sleeves of slider, and the friction surfaces between the moving working table and fixed table6,Safety System6.1 Each spare parts of the hydraulic system are equipped with hydraulic valve for system overpressure protection.6.2 There are security platform on the top of the press, fences and up and down escalators, easy to maintain.6.3 Electronic control system is equipped with motor overloaded and short circuit protection.ITEMUNITZDYJ-800ZDYJ-1000ZDYJ-1250ZDYJ-1600ZDYJ-2000ZDYJ-2500ZDYJ-3150ZDYJ-3500ZDYJ-4500ZDYJ-6000CAPACITYKN8000100001250016000200002500031500350004500060000WORKING OIL PRESSUREMPa25252525252525252525DAYLIGHTmm2500250025003000300039004000400045006000STROKEmm1300130013001400160018002000250025002600DISTANCE BETWEEN COLUMNS CENTERmm2200×12602200×12602200×12602900×15502950×15003400×16003500×19004500×20004350×21505200×2300DIAMETER OF COLUMN mm280280320330400470500520580690DIMENSION OF SHIFTING TABLEmm3600×1300×3003600×1300×3003600×1300×3004000×2000×3004200×1600×3005000×2000×3506000×2000×3506000×2200×4007000×2400×4009000×3400×400STROKE OF SHIFTING TABLEmm2200220022002500250030004000440045006000CAPACITY OF RETURNKN1000150015001700150020002000250040006500WORKING POSITIONS OF SHIFTING TABLE 3333333333ECCENTRICITY DIMENSION OF FORGINGmm120×80120×80150×75150×75150×100150×100150×120200×150200×150200×150GRADE NUMBERS OF CAPACITY 1112322323FIRST CAPACITYKN800010000125001000070001500015000150002500020000SECONDLY CAPACITYKN 16000140002500031500200004500040000THIRDLY CAPACITYKN 21000 35000 60000PRESSING SPEED AT APPROACHmm/s300300300300300300300300300250PRESSING SPEED AT FIRST CAPACITYmm/s74666067195114137170126190PRESSING SPEED AT SECONDLY CAPACITYmm/s 4297685512669106PRESSING SPEED AT THIRDLY CAPACITYmm/s 65 72 53RETURN SPEEDmm/s300300300300300300300300300250SPEED OF SHIFTING TABLEmm/s200200200200200200200200180150ACCURACY OF SHIFTING TABLE MOVINGmm±0.5±0.5±0.5±0.5±0.5±0.5±0.5±0.5±0.5±0.5DEGREE OF FORGING times/m60606060454545453025CARRYING CAPACITY OF SHIFTING TABLET202020253540506080100SHIFTING TABLE HEIGHT ABOVE FLOOR LEVELmm0000000000TOTAL POWERKW6608808801320154017602200286033003960WEIGHT OF PRESS(TOTAL)T1601802002302903204404807601100OVERALL HEIGHT ABOVE FLOOR LEVELmm780080008100850090001000011000125001350015700
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