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Excavator introduction

Release Time: 2021-04-22

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Views: 41

Excavator introduction

The used excavator power system composition and function

Second-hand Komatsu PC56-7 hydraulic system

1. Traveling hydraulic motor type: variable plunger type×2

2. Rotating hydraulic motor type: fixed plunger×1

3. Working hydraulic circuit (Mpa): 26.5

4. Walking hydraulic circuit (Mpa): 26.5

5. Rotary hydraulic circuit (Mpa): 19.6 movement

Used Komatsu PC56-7 excavator

6. Arm cylinder number × cylinder diameter × stroke (mm): 90×689.5×55 bucket

7. Number of rod cylinder × cylinder diameter × stroke (mm): 85×709.5×55

8. Number of bucket cylinder-×bore×stroke (mm): 75 ×580×50

9. Whether the hydraulic crushing pipeline is the standard: No

The used excavator power system composition and function

1. Air intake system-mesh cover → hose → air filter → hose → turbocharger → hose → intercooler → hose → engine.

2. Exhaust system-supercharger → expansion joint → muffler → exhaust pipe.

3. Cooling system-water tank → hose → thermostat → water pump → diesel engine → hose → water tank.

 Used Komatsu Excavator

4. Throttle control system-stepper motor → reducer → worm gear drive → throttle cable → diesel engine throttle-high idle speed low idle speed limit switch.

5. Fuel system-fuel inlet system: fuel tank → hose → hand oil pump → coarse filter → fine filter → diesel engine.

Oil return system: diesel engine → hose → fuel tank (the oil return volume is relatively large, use it for partial cooling).



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