Parameters Optimization And Experiment Of Cultivators In Joint Operation Of Deep Loose Ridges In Brown Soil Area Of Western Liaoning Province

Intertillage is an indispensable field management part in the corn planting process and pl ays an important role in the growth and development of corn plants.The cultivating operation of corn is most suitable when the growth of seedlings is not higher than 30 cm and the highest point of seedlings is about 60 cm.In the brown soil area of western Liaoning,due to successiv e years of drought,in order to ensure the seed germination rate,local farmers used ridge cultiv ation for spring sowing,and sowed the corn seeds in the furrows.This leads to the fact that tra ctors and implements can only be walked on ridges in cultivator operations.Therefore,there a re few cultivators in the middle cultivator,and many farmers use primitive livestock traction e quipment for cultivator operations.This is not only inefficient,but also And it takes several ti mes to enter the ground to cause the cultivation soil to be repeatedly compacted.This subject i s based on the environmental characteristics of the western Liaoning region.The theoretical a nalysis,parameter optimization and performance test of the deep-soiled ridge fertilization cult ivator enable it to be used and promoted in the local area.It has important practical significan ce for the development of the local cultivator work equipment.Based on a large number of references,this article analyzes the current status of multi-fu nctional joint cultivators at home and abroad.At the same time,several tests were conducted on the deep-soiled ridge fertilization cultivator in western Liaoning,and it was found that ther e were problems with ridge-injured seedlings in the cultivator operations in western Liaoning.Based on the combination of theory and practice,this deep-soil ridge fertilization cultivator was improved and the main research results were as follows:(1)Applying the second type of Lagrangian theorem,establish a mathematical model of t he deep loose ridge and ridge fertilization cultivator and joint work machine,theoretically ana lyze the lateral stability of the implement,and obtain the maximum declination θ of the imple ment in operation.Comparing θ with the maximum allowable declination angle θmax of the machine tool theory,it can be seen that deep ridge ridge fertilization combined cultivator oper ations are likely to fall into the ridge and furrow pressure injury seedlings during operation.(2)Compareing various anti-ridging solutions and analyzing the feasibility of each soluti on.In the end,the use of additional connecting rods between the tractor and the implement as a ridge-removal device to increase the lateral stability of the deep loose ridge and fertilization cultivator and combine machine,and the application of the Solidworks software to the worm protection device for the establishment of the model and the static of ANSYS Workbench Mec hanical analysis and modal analysis.(3)The physical survey of the deep loose ridge-raising parts of the cultivator in the deepsoil ridge-rope jointing operation was carried out,and the soil-groove test was carried out to o bserve whether the operation results meet the agricultural technical requirements in the wester n Liaoning.In addition,design tests were carried out to compare the effect of ridges in the cul tivating operation of the curved wedge-type soil cultivator and the planar wedge-type soil cult ivator in the deep-releasing ridge device and the trajectory of the soil particles along the soil wall to determine which type of soil cultivator is more suitable for Cultivated ridge cultivation in western Liaoning.(4)Field trials and determination of optimal parameters for the complete machine.Using the ratio of resistance and injury rate as indicators,the operating speed of the implement,the o pen angle of the soil cutter,and the depth of deep soil as the influencing factors,an orthogonal test of three factors and three levels was conducted,and the results were subjected to range a nalysis and variance analysis.The order of the primary and secondary effects of the three fact ors on the test index is deep depth>cermer open angle>tool forward speed.The best operating parameters of the deep loose ridge fertilization cultivator are: the depth of the deep pine is 25 c m,the open angle of the earth cultivator is 60°,and the forward speed of the implement is 5km/h.