| 摘要 |
PROBLEM TO BE SOLVED: To provide a mobile crane having a high degree of freedom of arrangement for a driving device component and being operable in a little toxic substance and without the toxic substance to the possible minimum level. SOLUTION: In a mobile crane having a lower traveling body to be driven and a revolving super structure rotatably arranged on it, arranging a counterweight, a raisable/lowerable main jib and an operation room on this revolving super structure and performing travel and crane operation by prime movers, the prime movers are electric motors 27, 28, energy for the travel and crane operation is supplied via diesel engine electric drive devices 20, 21, and these drive devices can be connected to the singular/plural electric motors 27, 28 by cables 22, 24, 25, 26. |
