农业工程学报Issue(14)：17-25,9.DOI:10.3969/j.issn.1002-6819.2014.14.003
高速插秧机钵体毯状苗纵向送秧装置的设计与试验
Design and experiment of vertically feeding-seedling device for pot-blanket seedling based on high-speed rice transplanter
摘要
Abstract
As one of special rice seedling, the pot-blanket seedling is a method between the rice pot seedling and blanket seedling. Because of its low damage to seedling and root while transplanting, fast reviving, and earlier rooting and tillering after transplanting, the mechanical planting of pot-blanket seedling is enabled to be high yield and more efficient. Compared with the ordinary seedling, its yield can increase 5%-15%. In China, rice is the principal food, so it is very significant to research the planting technology of pot-blanket seedling. However, there is no existing transplanter specially for pot-blanket seedlings. Vertical feeding-seedling device of existing high-speed transplanter being used has following problems:1) With the influence of gravity and vibration, seedlings will slide down on flat belt,when vertical feeding-seedling device does not work and cannot be fixed. 2) One-way bearing can also be rotated unidirectionally with the force of vibration so that seedling cannot be fed accurately. 3) The accumulative transmission error of one-way bearing will increase with time. As a result, the vertical feeding seedling cannot be quantified accurately. In order to solve the problem that vertical feeding seedling is impossible to be quantified accurately with use of high-speed transplanter, in the paper, a new kind of rice pot-blanket feeding-seedling device was designed and improved for rice pot-blanket seedlings. After analyzing and summarizing the planting traits of rice pot-blanket seedling on references at home and abroad, a device with intermittent rod mechanisms, four-bar mechanism, a double-ratchet mechanism which applies to platform of high-speed transplanter was analyzed theoretically and structured to satisfy the requirements of rice pot-blanket seedlings. By used of Solid Works, it will be enabled to test its work conditions in virtual simulation. And a prototype was successfully developed. The experiment showed that the deviation of one-pass vertical feeding quantity was less than 2 mm and there was no accumulative error after repeated feeding. In the condition of high-speed operation, vertical feeding seedling was accurate and stable. The position of seedlings can be fixed when the device under inactive condition. The research can provide a reference for design and application of rice transplanters.关键词
农业机械/设计/试验/高速插秧机/送苗装置/钵体毯状苗Key words
agricultural machinery/design/experiments/high-speed rice transplanter/feeding-seedling device/pot-blanket seedling分类
农业科技引用本文复制引用
杜立恒,俞高红,张国凤,李革,刘大庆..高速插秧机钵体毯状苗纵向送秧装置的设计与试验[J].农业工程学报,2014,(14):17-25,9.基金项目
国家高技术研究发展计划（863计划）项目（2012AA10A501）；现代农业产业技术体系项目（111329A4C12353）；浙江理工大学“521人才培养计划”项目；浙江理工大学科研创新团队专项项目 （）
