Nội dung: - Giới thiệu sản phẩm - Đầu búa H45-H100 - Đầu búa H115-H180 - Kiểm tra và điều chỉnh - Bảo dưỡng - Kiểm tra - Serie sản phẩm
Caterpillar Impact Products Ltd.Caterpillar HammersH115s - H180s HAMMER CONSTRUCTION Caterpillar Impact Products Ltd.Caterpillar Hammers Caterpillar Impact Products Ltd.Fixed Blow Energy OPERATING PRINCIPLE OPERATING PRINCIPLE H115s, H120Cs, H130s, H140s, H160s and H180s Caterpillar Impact Products Ltd.Caterpillar HammersOPERATING PRINCIPLEOPERATING PRINCIPLE H115s, H120Cs, H130s, H140s, H160s and H180s Start-UP CycleSupply oil from the machine auxiliary circuit flows throughthe check valve to the accumulator, pressure controlvalve, main spool, and bottom of the piston. Spring forceholds the pressure control valve closed, which blocks oilfrom the upper flange of the piston to return and preventsthe piston from moving.Pressure in the hammer circuit increases, whichcompresses the nitrogen gas in the accumulator.NOTE: The top of the piston is always vented toatmosphere. Caterpillar Impact Products Ltd.Caterpillar HammersOPERATING PRINCIPLEOPERATING PRINCIPLE H115s, H120Cs, H130s, H140s, H160s and H180s Lifting CycleWhen the hammer operating pressure is reached, theaccumulator is charged and the pressure controlvalve opens. The control valve directs oil from theupper flange area of the piston to the tank.During the LIFTING CYCLE, oil pressure at thebottom of the piston moves the piston up. Caterpillar Impact Products Ltd.Caterpillar HammersOPERATING PRINCIPLEOPERATING PRINCIPLE H115s, H120Cs, H130s, H140s, H160s and H180s Firing CycleWhen the piston is in the highest position, oil at thebottom of the piston is directed through the pilotpassage to the left end of the main spool.During the FIRING CYCLE, the hammer circuit isisolated from the machine auxiliary circuit by thecheck valve in the inlet and the pressure control valveat the outlet. This design prevents hydraulicpulsation from entering the machine auxiliary circuit. Caterpillar Impact Products Ltd.Caterpillar HammersOPERATING PRINCIPLEOPERATING PRINCIPLE H115s, H120Cs, H130s, H140s, H160s and H180s Return CycleWhen the piston strikes the tool, the pilot passage isconnected to the tank and the oil pressure decreases.The main control valve moves to the left to start thenext lifting cycle.NOTE: The oil below the upper piston flangefunctions as a hydraulic brake on the piston. Caterpillar Impact Products Ltd.Caterpillar HammersFunction of Hammer ComponentModels:H115s H120Cs H130s H140s H160s H180s Caterpillar Impact Products Ltd.Caterpillar HammersHousing AssemblyHousingAdaptation point to all carriers.Eliminates wear on critical components.BuffersProtects carrier from reflective shock waves.Wear PlatesProvides guidance for hammer inside housing.SidebuffersHousingTop bufferWearplates Caterpillar Impact Products Ltd.Caterpillar HammersUpperLowerTool BushingsAlign tool with the piston.Provide contact surfaceswith tool.Field replaceable for betterserviceability. Caterpillar Impact Products Ltd.Caterpillar HammersPrevents tool from falling out.Absorbs partial impact forces on idle strokes.Transfers impact force to front head on idle strokes.Tool Retainer Pins [...]... hammer Caterpillar Impact Products Ltd Caterpillar Hammers Accumulator Stores energy for the impact stroke Accelerates oil pushing piston during impact Absorbs pressure pulsation Caterpillar Impact Products Ltd Caterpillar Hammers Accumulator - Nitrogen Pre Charge Positions membrane in accumulator Stores energy for piston impact Absorbs internal pressure spikes Caterpillar Impact Products Ltd Caterpillar. .. Hammers 12 1-6 583 Accumulator Charging Group H140s add the following parts: Max Torque 7Q8501 Adapter 15 ft-lbs 7Q8502 Pin 3K0360 O-ring Pin EX long Adapter Adapter Pin O-ring Adapter Nitrogen ONLY Charging Group Caterpillar Impact Products Ltd Caterpillar Hammers Accumulator - Seal 1.Checking charge for pre-delivery or new membrane installation ALWAYS install a new gas seal 2 Check seal sits properly in... according to specifications in the service manual Caterpillar Impact Products Ltd Caterpillar Hammers Pressure Control Valve Dim A Example: H120s Dimension “A” = 132mm / 5.20” Caterpillar Impact Products Ltd Caterpillar Hammers Tie Rods Rubber Ring 1 - Keep Tie Rod and Nut as matched pair Locking Plate 2 - Do not install Tie Rod Nut upside down 3 - Follow torque sequence in Service Manuals 4 Heat... bond between seal and steel ring 2 4 Damaged - NEVER REUSE 3 Caterpillar Impact Products Ltd Caterpillar Hammers Valve Body - Main Valve / Check Valve “OUT” “x” “IN” “x” Check Valve X CAUTION Align all “X” on components to “X” on valve housing IF not aligned properly: Hammer will not operate!!!!! 4BSPP Fitting Test Port Caterpillar Impact Products Ltd Caterpillar Hammers Pressure Control Valve Out... Housing Power Cell Wear Plates Caterpillar Impact Products Ltd Caterpillar Hammers Accumulator / Power Cell CSTG Group D&A Stand : 18 5-3 208 Pin Drawings : FT2639 Inlet Port Serial Number Accumulator Return Port Check Valve Valve Housing Cylinder Pressure Controller Tie Rod Front Head Adjustable lock on front Head Caterpillar Impact Products Ltd Caterpillar Hammers 12 1-6 583 Accumulator Charging Group... beyond specification while hammer is apart Zerks Tool Retaining Pin Mechanism Caterpillar Impact Products Ltd Caterpillar Hammers Wear Components H115s - H180s Models Wear Items: Buffers Wear plates Upper Bushing Lower Bushings Tools Maintenance Items: Membranes Seals Caterpillar Impact Products Ltd Caterpillar Hammers Wear Limits - Lower Tool Bushing Measure Depth of Worn Area Dimension “A” See Service... New ID “A” Worn Out Caterpillar Impact Products Ltd Caterpillar Hammers Wear Limits - Upper Tool Bushing Measure inside diameter of Upper Tool Bushing Replace if more than specifications allow See service manuals for specifications ID Example: H115s New bushing diameter 106mm Replace if diameter is more than 108mm Caterpillar Impact Products Ltd Caterpillar Hammers Wear Limits -Tool Measure Diameter.. .Caterpillar Hammers Thrust Ring Absorbs shock load from tool Positions piston for start of hammer operating cycle Positions tool for correct contact with piston Caterpillar Impact Products Ltd Caterpillar Hammers Tie Rod Assembly Hold hammer assembly together Absorbs partial impact loads from idle strokes Tie Rod Tie Rod Nut Caterpillar Impact Products Ltd Caterpillar Hammers... Caterpillar Hammers H115s - H180s Disassembly/Assembly RENR 4416 RENR 4406 Caterpillar Impact Products Ltd Caterpillar Hammers Tool and Lower Tool Bushing Lower Tool Bushing Puller Assembly Retainer Slot Tool Retaining Pins Tool If burrs on the retainer pin slots prevent tool from coming out Lower tool bushing and tool can be removed together Caterpillar Impact Products Ltd Caterpillar Hammers Housing... Nut Caterpillar Impact Products Ltd Caterpillar Hammers Power Cell • Be sure seals are installed correctly • Port location (L or R) is determined by lower seal carrier position in front head Valve Piston Upper Seals Lower Seals Seal Carrier Index Plug Front Head CAUTION: Improper Installation of Index plug will change inlet port location from left side to wrong side Caterpillar Impact Products Ltd Caterpillar . Caterpillar Impact Products Ltd .Caterpillar HammersH115s - H180s HAMMER CONSTRUCTION Caterpillar Impact Products Ltd .Caterpillar Hammers Caterpillar. . Caterpillar Impact Products Ltd .Caterpillar HammersH115s - H180s Disassembly/AssemblyRENR 4416RENR 4406 Caterpillar Impact Products Ltd.Caterpillar