| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cooling system of construction equipment which has a cooling means arranged in a limited installation space. <P>SOLUTION: A backhoe 1 or the construction equipment has a revolving stand 11 mounted to a traveling device 5; a boom 25 etc. mounted to the front of the revolving stand 11; and a driving power generating section 12 arranged inside the revolving stand 11. The driving power generating section 12 has a battery 50 for supplying electric power to an electric motor 13 for driving a hydraulic pump 14 that supplies the oil pressure of hydraulic oil for activating the boom 25 etc. ; and an oil cooler having a hydraulic oil cooling fan 72 that is rotatable forward/backward for cooling the hydraulic oil supplied to a work device. Thus by rotating the hydraulic oil cooling fan 72 forward or backward, outside air is sucked into the revolving stand 11 and then blown toward the battery 50 to cool the same. On the other hand air inside the revolving stand 2 is discharged to the outside, and therefore the hydraulic oil in the oil cooler 71 is cooled. <P>COPYRIGHT: (C)2007,JPO&INPIT |
