| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic unit mounted on a bucket, which can reduce the weight of an entire bucket, simplify the structure of the bucket, and achieve cost reduction. ! SOLUTION: A hydraulic unit mounted on a bucket comprises an electric motor 1 that can drive in forward and reverse directions, a gearbox 2 that has an input shaft 2a connected to the rotation shaft of the electric motor 1 and two output shafts 2b and 2c that selectively rotate according to the forward/reverse drive of the electric motor 1, and two hydraulic pumps 3a and 3b that are connected to the output shafts 2b and 2c, respectively, of the gearbox 2 to selectively discharge hydraulic fluid according to the forward/reverse drive of the electric motor 1, in which hydraulic fluid discharged from the hydraulic pumps 3a and 3b is supplied via a hydraulic fluid passage to a hydraulic cylinder 10 that performs bucket opening/closing operation. ! COPYRIGHT: (C)2015,JPO&INPIT |
