Shank Selection for Disc-Ripper  

作　　者：I. J. Jori J. P. Radics 

机构地区：[1]Budapest University of Technology and Economics, H-1111 Budapest, Bertalan u. 1, Hungary

出　　处：《Journal of Agricultural Science and Technology(B)》2011年第4期532-539,共8页农业科学与技术（B）

摘　　要：The new sustainable tillage system needs new machines which are the combination of well accepted disc harrow and cultivator or chisel/ripper. To find the type of ripper shank we have done a research program with 7 different shape and size tools. The geometrical parameters were determined in laboratory, the performance （loosening effect, depth etc） and draft requirements were measured on loamy soil stubble field （the speed range： 2.5-7.5 krrdh）. Developing a combined evaluation system-based on performance and draft data-to select the most favorable shank type for our condition was found one which has the following features： the size of the point： rake angle = 25°, length = 240 mm, width = 80mm; the equation of the shank curve： y = axb, where a = 2-3.5 and b = 0.04-0.05.

关 键 词：Disc-ripper SHANK soil loosing sustainable tillage selection. 

分 类 号：S511[农业科学—作物学] TS914.5[轻工技术与工程]