| 摘要 |
A vibratory power unit ( 10, 210 ) having small gasoline engine ( 12 ) coupled by a drive shaft ( 15 ) extending through a semi-rigid shaft case ( 16, 18, 20 ) to an eccentric ( 75 ) rotating with the aid of sealed bearings ( 74, 78 ) within a vibrator case ( 14, 514 ) is disclosed. The semi-rigid shaft case includes a first rigid shaft case portion ( 16 ) and a second rigid shaft case portion ( 20 ) coupled together by an isolator ( 18, 518, 618 ). A coupling ( 90, 790 ) is provided for removably coupling the vibratory power unit ( 10, 210 ) to concrete finishing tools ( 11, 211 ). The coupling includes a split ball ( 92 ) configured to be received on the vibrator case ( 14, 514 ) and a slit ring ( 110 ) configured to compress the split ball ( 92 ) onto the vibrator case ( 14, 514 ). A radio controlled throttle controller ( 300, 400, 500 ) is provided for remotely controlling the speed of engine ( 12 ). Radio controlled throttle controller ( 300, 400 ) scavenges electrical power from the magneto circuitry of the engine ( 12 ).
|
