农业机械学报2017，Vol.48Issue(12)：33-41,9.DOI:10.6041/j.issn.1000-1298.2017.12.004
稻油轮作区驱动圆盘犁对置组合式耕整机设计与试验
Design and Experiment on Symmetrical Driven Disc Plows Combined Tillage Machine for Rice-Rapeseed Rotation Area
摘要
Abstract
Considering the soil of in mid-lower Yangtze River is sticky and the amount of straw is large,the furrow should be ditched while rapeseed is planting,which leads the power consumption of traditional tillage is large.Compared with the traditional plow,driven disc plows are not easy to be blocked and traction resistance is small.The design of symmetrical type driven disc plows combined tillage machine for rice-rapeseed rotation area was carried out.According to dynamics and kinematic analysis of driven type disc plows,its main structure and technical parameters were analyzed and determined.Based on the principle of plow forming and soil extrusion,the surface of front ditch plow was designed,and it was determined that when the width of ditching area was 350 mm,the quality of furrow and seedbed can be ensured.The tillage depth stability experiments results indicated that actual working depth of the machine was consistent with the control depth,and tillage stability coefficients were more than 90％.The seedbed quality experiments results showed that the depth and width of furrows which was ditched by ditching system were 241.6 ～ 293.5 mm and 328.6 ～ 370.8 mm,respectively.The soil squeezed by combined ship type opener can effectively filled the furrows which was formed by driven disc plows,the actual landfill rate of furrows was more than 87.67％.The seedbed roughness was 22.45 ～ 26.70 mm,soil crushing rate was 60.14％ ～ 68.37％.The orthogonal test indicated that the optimum operation condition was the tillage depth was 180 mm,the speed of machine was 3.5 km/h,and operating speed of driven disc plows was 160 r/min.Under this condition,the power consumption was 24.37 kW,straw coverage rate was 92.78％,soil crushing rate was 66.74％,seedbed roughness was 24.18 mm,and landfill rate was 92.3％.The experiment results showed that the quality of symmetrical type driven disc plows combined tillage machine satisfied the actual production requirements of rapeseed planting.The research conclusion had great theoretical value and practical significance to the design of machine which worked for planting rapeseed.关键词
油菜/畦沟/圆盘犁组/组合式/耕整机/试验Key words
rapeseed/furrow/disc plows/combined type/tillage machine/experiment分类
农业科技引用本文复制引用
刘晓鹏,张青松,肖文立,马磊,刘立超,廖庆喜..稻油轮作区驱动圆盘犁对置组合式耕整机设计与试验[J].农业机械学报,2017,48(12):33-41,9.基金项目
农业部公益性行业科研专项(201503118-06)、农业部科研杰出人才及创新团队项目、湖北省技术创新专项重大项目(2016ABA094)、国家油菜产业技术体系专项(CARS-12)和中央高校基本科研业务费专项(2662017PY006) （201503118-06）
