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1. 发明申请

US20140116041A1 Walk Behind Aerator Hydrostatic Traction Drive System 审中-公开
标题翻译：走在充气机静液压牵引驱动系统后面
公开(公告)号：US20140116041A1
公开(公告)日：2014-05-01
申请号：US13663982
申请日：2012-10-30
申请人： Stanley K. Hall , Bradley P. Aldridge , Loren A. Zabel
发明人： Stanley K. Hall , Bradley P. Aldridge , Loren A. Zabel
IPC分类号： A01B45/02 , F15B13/06
CPC分类号： A01B45/023
摘要： A walk behind aerator hydrostatic traction drive system includes left and right rear wheel hydrostatic motors driving left and right rear wheels positioned forwardly of a coring head, and a front wheel hydrostatic motor driving a single steerable front wheel carried in a pivotal yoke. The pivotal yoke is coupled to a handle assembly attached to a neck extending upwardly and forwardly for pivoting the single steerable front wheel about a vertical pivot axis. A check valve is connected in parallel to the front wheel hydrostatic motor. The check valve opens if the walk behind aerator moves in a forward direction and the handle assembly is turned to pivot the single steerable front wheel and the front wheel rotates more than each rear wheel, or if the walk behind aerator moves in a reverse direction.
摘要翻译：曝气机静液压牵引驱动系统后面的走路包括左右后轮静液压电动机，其驱动位于取心头前方的左右后轮，以及驱动单个转向可转动前轮的前轮静液压马达。枢转轭联接到附接到颈部向上和向前延伸的手柄组件，用于使单个可操纵前轮围绕垂直枢转轴线枢转。止回阀与前轮静液压马达并联连接。如果充气器后面的走路向前移动，手柄组件转动以使单个可转向前轮枢转，并且前轮比每个后轮旋转更多，或者如果靠近曝气器的走路沿相反方向移动，则止回阀打开。

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