曹卫彬,焦灏博,刘姣娣,杨双平,陈棒棒,孙胃岭.基于TRIZ理论的红花丝盲采装置设计与试验[J].农业机械学报,2018,49(8):76-82.
CAO Weibin,JIAO Haobo,LIU Jiaodi,YANG Shuangping,CHEN Bangbang,SUN Weiling.Design of Safflower Filament Picking Device Based on TRIZ Theory[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(8):76-82.
摘要点击次数: 2107
全文下载次数: 1404
基于TRIZ理论的红花丝盲采装置设计与试验   [下载全文]
Design of Safflower Filament Picking Device Based on TRIZ Theory   [Download Pdf][in English]
投稿时间:2018-03-07  
DOI:10.6041/j.issn.1000-1298.2018.08.009
中文关键词:  红花丝  采摘装置  弧形齿  TRIZ理论
基金项目:新疆生产建设兵团科技攻关项目(2015AB020)
作者单位
曹卫彬 石河子大学 
焦灏博 石河子大学 
刘姣娣 桂林理工大学 
杨双平 石河子大学 
陈棒棒 石河子大学 
孙胃岭 石河子大学 
中文摘要:针对红花花球分布层次不齐造成机械采收效率低等问题,设计一种红花丝盲采装置。通过分析人工手采摘红花丝的过程,利用TRIZ理论,建立红花丝采摘的物质-场模型,得出红花丝最佳采摘方案为利用采摘齿与红花丝碰撞的盲采。采用凸轮机构作为红花丝采摘的驱动机构,利用TRIZ理论的冲突矩阵对应的发明原理,对凸轮机构的结构进行改进,使凸轮机构完成红花丝的夹紧与拉拔两个驱动。设计了一种新的弧形采摘齿,解决了红花丝漏采难题。利用Creo软件建立红花丝盲采装置的三维模型,并研制样机进行试验,试验结果表明,当该装置前进速度为0.5m/s,采摘齿转速大于6r/s时,红花丝的采摘效果最佳,采净率约为90%。
CAO Weibin  JIAO Haobo  LIU Jiaodi  YANG Shuangping  CHEN Bangbang  SUN Weiling
Shihezi University,Shihezi University,Guilin University of Technology,Shihezi University,Shihezi University and Shihezi University
Key Words:safflower filament  picking device  finger of arc shape  TRIZ theory
Abstract:To improve picking efficiency of safflower filament harvesting device, a safflower filament harvesting device was developed based on TRIZ theory, which can pick safflower filament without the machine vision, called as safflower filament blind harvesting device. Through analyzing the whole process that people pick safflower filaments, the substance field models of picking safflower filaments were built to guide how to design safflower filament picking device. The optimized picking method, as a result, was created according to that substance field. This process existed that as they were moved without looking at safflower filament, two personal fingers were continuously opened and closed to pick safflower filament. Therefore, the probability that safflower filaments were picked without machine vision was very big. Through the above study, the safflower filament blind picking method was feasible. Force of personal fingers picking safflower filaments was flexible, so that the cam and spring mechanism were chosen as drive mechanism of the safflower filaments picking device to imitate soft drive system of personal finger picking safflower filaments. A general cam and spring mechanism only had an moving action along the one direction, however, there were necessary two actions to achieve the function of safflower filaments picking, which were clamping action and drawing action. Hence, a general cam and spring mechanism cannot satisfy the safflower filaments picking requirements. To solve that problem, the useful functions and harmful functions of a general cam mechanism were parameterized based on thirty nine engineering parameters of TRIZ theory, and some principles to solve the problem were gained from the conflict matrix. The dynamic principle and reverse principle from the principles gained were applied to solve the above question. Finally, the existed cam structure can be changed, so that a new cam structure that the pushing bar rotates around the outline of the still cam can be created to simplify the structural complexity safflower filaments picking device. Through analyzing kinetic characteristics of safflower filaments picking device, it took some time that the pushing bar passes the return curve, resulting in that safflower filaments cannot be clamped quickly, making the picking ratio very low. To solve the difficulty of low picking efficiency, the arc shape picking finger shape was developed, filling in the gap of the time spending on clamping picking fingers and improving safflower filaments picking efficiency. Through the kinematical simulation of the safflower filament device, it was successive that the curves simulated the picking finger speed and acceleration, indicating that kinematical characteristics of the safflower filament device were suitable. The physical prototype of the safflower filament device was manufactured, and the picking performance of the safflower filament device was tested. The experiment results showed that picking ratio was about 90%, so that the device can meet picking requirements.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

   下载PDF阅读器