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公开(公告)号：US5191943A
公开(公告)日：1993-03-09
申请号：US748524
申请日：1991-08-22
CPC分类号： E02F3/8152 , A01B31/00 , E02F3/7622 , Y10S403/08
摘要： A grader especially adapted for use in association with a tractor having a three-point hitch with the grader being capable of use in cutting, moving, spreading and leveling all types of soil, aggregate and the like. The grader can also be used to carry, spread and level hot and cold asphalt, soil, aggregate and the like. The grader has blades adjustable to a predetermined depth with the specific angle of the grader blades and the speed of movement in relation to the surface being worked determining the operational characteristics of the grader. The grader includes a pair of transversely extending blades oriented at a particular angle and being vertically adjustably attached to a pair of side frame members having ground engaging slide shoes along the lower surface thereof. The ends of the blades are vertically adjustably connected to the side frame members and provided with manually operated cam structures to adjust the blades vertically. The blades are mounted on an angled support bar in vertically adjusted positions to enable the position of the blades to be adjusted to compensate for wear.
摘要翻译： 特别适用于与具有三点牵引的拖拉机结合使用的分级机，该分拣机能够用于切割，移动，铺展和调平所有类型的土壤，骨料等。 分级机也可用于携带，分散和分级冷热沥青，土壤，骨料等。 平地机具有可调节到预定深度的叶片，其中分级机叶片的特定角度和相对于正在加工的表面的移动速度确定了分级机的操作特性。 平地机包括一对横向延伸的叶片，其以特定角度定向，并且沿着其下表面垂直地可调节地附接到具有接地滑动滑块的一对侧框架构件。 叶片的端部垂直地可调节地连接到侧框架构件并且设置有手动操作的凸轮结构以垂直地调节叶片。 刀片安装在垂直调整位置的成角度的支撑杆上，以使叶片的位置能够被调节以补偿磨损。
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