| 摘要 |
PROBLEM TO BE SOLVED: To provide a shovel capable of suppressing reduction in the durability of a vibration-proof member and reducing the influences of vibration on an electric driving unit.SOLUTION: A motor is mounted on a shovel body. The motor is driven by the electric driving unit. The electric driving unit is supported on the shovel body by the vibration-proof member. The natural frequency of a spring mass system consisting of the vibration-proof member and the electric driving unit is higher than the vibration frequency of a main component of vibration which is generated in the shovel body during the operation. |
