双齿盘驱动打结器设计与成结试验分析

发布时间：2018-03-26 07:25

本文选题：打捆机　切入点：打结器　出处：《农业机械学报》2016年03期

【摘要】：通过对D型打结器空间传动方案改进提出了双齿盘驱动打结器,将驱动夹绳器的空间传动布置在打结器支架的另一侧,将进口打结器支架一组空间交错轴角度关系简化为平面相交轴角度关系,降低了打结器支架的加工难度,克服了进口打结器空间交错轴锥齿轮齿廓设计与制造难的问题,便于批量化生产。通过将蜗杆与斜齿轮的传动比调整为1∶3使原四槽口夹绳盘改进为三槽口夹绳盘,并匹配设计了夹绳盘、打结嘴和刀臂的运动时序,建立了双齿盘驱动打结器的结构模型。与进口打结器的成结动作对比试验表明双齿盘驱动打结器的空间传动方案改进合理,驱动夹绳器、打结嘴和刀臂的运动时序匹配设计正确,夹绳和割绳动作比进口打结器更优,夹绳时捆绳直接入夹绳盘槽口,割绳时捆绳靠近刀片中间位置。室内台架的打结试验表明双齿盘驱动打结器的成结率为100%。
[Abstract]:By improving the space drive scheme of D type knotting device, a double tooth disk drive knotting device is proposed. The space drive of the drive rope clamp is arranged on the other side of the tie holder. This paper simplifies a group of spatial staggered axis angle relations of imported knotter bracket to plane intersecting axis angle relation, reduces the processing difficulty of the knotter bracket, and overcomes the problem of the difficult design and manufacture of the bevel gear profile of the imported knotter space staggered shaft. By adjusting the transmission ratio of worm and helical gear to 1:3, the original four-slot clamping rope disc is improved to three-notch rope clamping disc, and the motion timing of clamping disc, knot mouth and knife arm is matched. The structure model of the double tooth disc driven knotting device is established. The results of the comparison test with the imported knotting device show that the spatial transmission scheme of the double tooth disc driven knotting device is improved reasonably, and the rope clamping device is driven. The timing matching of the movement of knotted mouth and knife arm is correct, the action of clamping rope and cutting rope is better than that of the imported knotting device, and when the rope is clamped, the rope is directly inserted into the slot of the clamping rope disc. The tie rope is close to the middle position of the blade when the rope is cut. The knot test of the laboratory bench shows that the knot forming rate of the double tooth disc driven knotting device is 100.
【作者单位】：江苏大学现代农业装备与技术教育部重点实验室;
【基金】：国家自然科学基金项目(51375215) 镇江市重点研发计划项目(NY2015007) 江苏高校优势学科建设工程资助项目(苏政办发[2014]37号)
【分类号】：S817.115

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