The cutter head of shield machine is mainly driven by hydraulic pump or frequency conversion motor. At present, compared with hydraulic drive, frequency conversion motor has become the main driving force for shield machine because of its low cost, convenient installation and speed regulation, high efficiency, large torque and environmental protection.
Технические характеристики
CharacteristicsAC/DCthree-phaseTypeasynchronousVoltage 380VProtection classIP55, maintenance-freeConfigurationTEFCNumber of poles4-pole, 8-pole, 12-poleCooling mechanismair-cooledApplicationsfor industrial applications, for tunnel boring machineOther characteristicsconstant speedPower
Min.: 0.75 kW (1.02 hp)
Max.: 315 kW (428.281 hp)
Current
Min.: 1.2 A
Max.: 535 A
59 A
Torque
Min.: 0.6 Nm (0.4425 ft.lb)
Max.: 2.8 Nm (2.0652 ft.lb)
1.2 Nm (0.8851 ft.lb)
Rotational speed
Min.: 585 rpm (3,675.66 rad.min-1)
Max.: 2,980 rpm (18,723.89 rad.min-1)
1,480 rpm (9,299.11 rad.min-1)
Diameter
Min.: 112 mm (4.41 in)
Max.: 710 mm (27.95 in)
Operating temperature
Min.: -20 °C (-4 °F)
Max.: 60 °C (140 °F)
40 °C (104 °F)
