Power digger for landscape gardeners

作者: R Kuhl

DOI:

关键词: Drive motorDrive wheelEngineeringHydraulic cylinderPower (physics)Variable displacement pumpAutomotive engineeringAugerChassis

摘要: A highly maneuverable power driven implement for digging holes, such post holes or shrubbery planting lifting loads is arranged with a compact chassis having steerable rear wheel, pair of laterally adjustable front wheels projecting ahead the forward end chassis, and vertical guide at along which hydraulic auger drive motor reciprocally movable. driving variable displacement pump selectively supplies to motor, wheel cylinder that reciprocates drive.

参考文章(3)
Raymond E Von Ruden, Mobile earth boring machine ,(1969)
Augsburger Clyde, Portable drilling machines ,(1952)
Glenn F Shaver, Post driver and puller ,(1953)