| 摘要 |
PROBLEM TO BE SOLVED: To provide an excavator cutter driving device in which the amount of oil supplied to each of jacks can be simply regulated, the angular velocity of rotation of the cutter can be set constant, energy efficiency can be improved, smooth shifting of the jacks can be done, the amount of electricity consumption can be reduced with a simple installation, abnormal rise of oil temperature during operation can be prevented and further excellent responsiveness can be eesured. SOLUTION: For an excavator cutter driving device wherein oil-hydraulic jacks 26A... serving as a plurality of jacks operated by fluid pressure are connected to a crank 21 and excavation is made at the ground with cutters connected to the crank 21 that is rotated by operation of the oil-hydraulic jacks 26A' in the plural number, a pressurized delivery pipe 37 for sending the fluid under pressure to each of the jacks 26A... is extended from an oil-hydraulic pump 35 serving as a pump for sending the fluid under pressure and branched for connection with each of the jacks 26A..., and thereby the fluid pressure is made constant with the jacks 26A... being connected with one another. |
