| 摘要 |
PROBLEM TO BE SOLVED: To suppress vibration of various items of equipment mounted on a main frame and to enhance the durability of a mounting part of the main frame and the various items of equipment. SOLUTION: Upper sides of the various items of equipment such as a counter weight 19, an engine 21, a heat exchanger 24, an operation oil tank 26 and a fuel tank 27 mounted on a rotation frame 11 are mounted to an upper frame 31, thereby, these various items of equipment are clamped and supported between the rotation frame 11 and the upper frame 31. Thereby, since the upper sides of the respective items of equipment can be restricted by the upper frame 31, the upper side of the various items of equipment can be suppressed from being largely oscillated by oscillation generated during the operation of a hydraulic shovel 1. As a result, load imposed on the mounting part of the respective items of equipment such as the counter weight 19, the engine 21, the heat exchanger 24, the operation oil tank 26 and the fuel tank 27 and the rotation frame 11 can be reduced to enhance the durability. COPYRIGHT: (C)2007,JPO&INPIT
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