
Agriculture, Год журнала: 2025, Номер 15(10), С. 1102 - 1102
Опубликована: Май 20, 2025
Aiming at the problem that rotary tiller knife rollers are prone to entanglement with straw in wet and sticky soil environment of rice fields middle lower reaches Yangtze River China, an antitangling sticking cutter was designed. The reduces roller order reduce energy consumption improve work efficiency, its effectiveness verified through theoretical analysis, discrete element simulation, field trials. design’s validity tests. blade inclination design completed motion force tool geometry optimized a 36.87° baffle staggered arrangement. A simulation model soil–straw–rotary tillage interaction established we used method analyze variation torque between antisticking China standard (IT245) four different shaft rotational speeds. In average for knives smaller than national knives, reductions 37.1%, 52.1%, 52.8%, 50.0%, respectively, demonstrating remarkable effect. Field tests showed operational efficiency 0.57 hm2/h, operation qualification rate 95.72%. results from (with without knife) were analyzed, yielding correlation coefficients 0.994 0.973 change curves knife. This result confirms accuracy consistency test results. study can provide some references tillers.
Язык: Английский