灌木锯切实验台的设计及试验研究

Design and test on sawing experimental table of shrub

针对现有灌木平茬机收获时存在的生产效率低、磨损大、功率大的问题,设计了灌木根茎锯切试验台,该装置采用横向锯切方式;设计基于虚拟仪器技术,可实现对锯切速度,功率消耗,灌木进给速度的实时测量;论文最后进行了含水率、直径影响试验及几种不同锯片在不同线速度、不同进给速度下的台架试验。研究表明：灌木含水率在20%,直径在15mm,选用的锯片齿距在9.81mm,厚度为2mm,刀盘线速度在40~60m/s时具有较小的锯切力及功率消耗,为灌木切割装置的设计提了供理论支持。

For the problems of low production efficiency and serious abrasion and large power in harvest of Shrub, a rhizome sawing experimental table was designed. The method of transverse sawing used in the device, The device was design based on virtual instrument technology, which can realize real-time measurement of the sawing speed and power consumption and shrub feed speed. Finally, the paper do test with different moisture content and diameter and different saw blade in different speed and different feed speed. The results show that a smaller sawing force and power consumption could be obtained under the conditions of shrub moisture content at 20%, diameter 15 mm, the pitch of saw blade 9.81 mm, thickness 2 mm, line speed 40-60m/s. It could provide the oretical support for the design of shrub sawing device.