Authors

Abstract

This paper attempts to design a universal, easy-to-use pruning tool suitable for taller branches. For this purpose, the author proposed an omni-directional electric pruning saw. The saw has a 360° rotatable head, which can prune branches in all directions. Under the saw blade, a V-shaped groove was added so that the branches can be introduced, cut and released stably. A telescopic rod was included in the design to prune branches at different heights. To facilitate the retraction and release of wire, a winding reel was provided to make the wire change with the length of the rod. In addition, there is a deadlock device at the handle, which prevents the manmade safety hazards. The proposed pruning saw was tested through an experiment. The results show that the saw could be used for various branches and was 4 times more efficient than the traditional hand saw.

Abstract in Chinese

本文研究一种全方位电动打枝锯，其旋转锯头实现了360度全方位打枝作业；锯片下方设计的V型槽，方便了枝条的导入，保证了锯切打枝的稳定性；伸缩杆满足了高度不同树种打枝的需求；绕线盘使导线在伸缩杆的收缩和拉伸的过程中，随杆长变化而变化，解决了导线收放不便的问题；手柄处设计的锁死装置，有效避免了由于人为操作误失而造成的安全隐患。实验结果证明：该打枝据可应用于多种枝条，相比普通手工锯，效率提高了4倍