Crane operation evaluation device

[0025]The embodiments of the present invention will be described below with reference to the appended drawings.

[0026]First, the configuration of a crane 100 using the operation evaluation device of one embodiment of the present invention will be described below with reference to FIG. 1 and FIG. 2.

[0027]As shown in FIG. 1, the crane 100 is a crawler crane. The crane 100 includes a crawler-type lower propelling body 102, an upper slewing body 104 serving as a crane main body and installed on the lower propelling body 102 so that the upper slewing body can rotate about the vertical axis, a boom 106 serving as a raising / lowering member mounted on the upper slewing body 104 so that the boom can be raised and lowered, and a main hook 108a and an auxiliary hook 108b as suspended loading parts that hang down from a tip of the boom 106. The crane 100 is also provided with an engine 109 (see FIG. 2). The following operations are performed in the crane 100 by using drive power of the engine 109