The utility model can effectively avoid the interference between the power transmission shaft of the gear-box and the cross beam during the process of rising and descending of the machine tool.

本实用新型能够有效避免机具升降时，有 效避免了机具升降时变速箱动力传动轴与横梁的干涉。

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Power is delivered to a spline shaft by a power output shaft of a tractor via a universal transmission shaft, an input shaft of a gear box, and a conical gear pair in mesh;

动力由拖拉机的动力输出轴，通过万向传动轴、传动箱的输入轴、经互相啮合的圆锥齿轮付传递至花键轴；

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