Research On Key Components Of Winter Wheat No-Tillage Planter For Interplanting

In order to promote the last12years bred by the Northeast Agricultural University, New Winter Wheat Variety "Dongnongdongmai1" promotion in Heilongjiang Province, this paper applies to winter wheat no-tillage planter for interplanting.The content of this paper comes from the improvement of Northeast Agricultural University Scientific Research Fund "the improvement and working mechanism of winter wheat tillage planter". According to the requirements of "Dongnongdongmai1"sowing, the accordance with the agricultural and agronomic, a research of key components has been made:the profiling agencies, anti-blocking agencies, two degrees of freedom of bidirectional profiling institutions, dial the grass disc knife and Yazui opener sets of winter wheat no-tillage planter.This paper design a two degrees of freedom of bidirectional profiling institutions by the theoretical analysis and calculation.This institutions can be achieved with the ground up and down, left and right profiling,which constitute by profiling cross-bar, profiling longitudinal strut and profiling vertical strut composition.Calculating the profiling institutions’geometry obtained the parameters of the profiling institutions, as well as the range of the profiling institutions. Profiling limit board was analysis by finite element with ABAQUS software to meet the planter security requirements in the enhanced and the transport process. Planter unit was analysis by the dynamic simulation and kinematies with CATIA software.The new interplanting winter wheat model no-tillage planter with two degrees of freedom of bidirectional profiling institutions profile modeling hysteresis was significantly lower than the last generation. The planter can improve seeding quality.Research of blockingproof institutions, according to the theory of sliding cutting, designed a kind of the dial the grass disc,study the two blockingproof mechanism:proactive anti-blocking institutions and passive anti-blocking institutions. Experiment showed that the passive anti-blocking institutions is better than the proactive anti-blocking institutions.Designed the opener, clear the Yazui opener of design ideas.This opener is a simple structure, made of the rectangular pipe.Replace the guide seed tube and the guide fertilizer pipe, simplified the institutions of the planter. Strength check the opener, this kind of structure to meet the requirements. The finite element analysis software also used to analysis the stress and strain of the planter unit frame, this institution suffered the maximum stress is23.2Mpa and region connected with the opener deformation at0.0561～0.071mm when planter at word, does not affect the opener buried angle.Adopt three factors and five levels of the quadratic regression orthogonal rotation center combination of test methods, based solely on forward speed、penetrating angle and buried gap angle and make stability of trenching depth、forward resistance and trenching width as objective function, Carry out field trials for opener, get result of the effect factors when it works. Optimize experiment design and analysis and make sure the best structural concept of opener:forward speed of seeder is4Km/h, penetrating angle is27°, buried gap angle is7°.In this paper, two degrees of freedom of bidirectional profiling institutions, dial grass circular knives, it can provide a reference for planting crops of different kinds of no-tillage planter, two degrees of freedom of bidirectional profiling institutions can increase the single body profiling types of institutions.