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耖是一种常见的农具,农民在小面积水田平田时用手扶耖,然后由小型拖拉机或牲口牵引来进行作业,效率低、成本高。现有的铁耖都是固定连接在动力机械上,不能伸缩调节铁耖角度和控制耖泥量,平田时铁耖难以自动适应地貌变化。此外,作业面完全由铁耖大小决定。因此,有必要对现有铁耖进行改进,设计一种伸缩式铁耖,可以控制铁耖离地高度和角度,自动适应地貌变化,并在不增加铁耖主体大小的情况下扩大作业面。
As a common farming tool, peasants use hand-braided plows on small fields of paddy fields and are then towed by small tractors or livestock for low efficiency and high cost. The existing iron 耖 are fixedly connected to the power machinery, can not telescoping adjustment 铁 angle and control 耖 mud volume, flat iron 耖 difficult to adapt to changes in landscape. In addition, the working area is entirely determined by the size of the iron. Therefore, it is necessary to improve the existing iron slender and to design a retractable iron slender which can control the iron slender height and angle from the ground, automatically adapt to the change of the landform and enlarge the working surface without increasing the size of the iron slender.