农业机械学报2018，Vol.49Issue(1)：86-92,7.DOI:10.6041/j.issn.1000-1298.2018.01.010
基于刮削与振动原理的减粘降阻镇压装置研究
Investigation on Press Device in Reducing Adhesion and Resistance Based on Scrape and Vibration Principle
摘要
Abstract
Aiming at the problems such as serious soil adhesion,large traction resistance,a press device in mechanical type reducing adhesion and resistance was designed according to the method of terrain machines reducing adhesion and resistance.The movement process of press device was analyzed.The suppression device,scraping angle to take off the soil,and soil compaction mechanism analysis were done.The mechanism analysis can provide theoretical basis for the design of the press device,and based on that the key components of press device was designed.For the study performance of press device in mechanical type reducing adhesion and resistance,the spring stiffness coefficient,speed and scraping angle were taken as experimental factors,traction resistance,soil adhesive quality were taken as test indexes.The orthogonal test L9 (34) was conducted in the indoor soil bin for getting test factors affecting the performance of press device work.Test results showed that the order of the various factors affecting were as follows:the spring stiffness coefficient,scraping angle and speed;the best combination:the spring stiffness coefficient was 40 N/mm,scraping angle was 30°,and speed was 7 km/h.To the optimal level combination of verification experiment:traction resistance was 39.6 N,and soil adhesive quality was 43.24 g.Compared with the traditional repressive device,the results showed that the press device based on scrape and vibration principle can reduce the traction resistance by 17.8％ and the soil adhesion can be reduced by 34.8％.关键词
播种机/镇压装置/减粘降阻/刮削/振动Key words
planter/press device/reducing adhesion and resistance/scraping/vibration分类
农业科技引用本文复制引用
刘宏俊,赵淑红,谭贺文,杨悦乾,张先民..基于刮削与振动原理的减粘降阻镇压装置研究[J].农业机械学报,2018,49(1):86-92,7.基金项目
“十二五”国家科技支撑计划项目(2014BAD11B01)和黑龙江省重大科技招标项目(GA14B101-01) （2014BAD11B01）
