Design And Experiments Of Grape Vine Burying Machine

In recent years,with the increasing demand for the quality of life,grape as a rich trace elements,high nutritional value health and green fruit,it has become an important industry and planting area expanding constantly in Ningxia.Ningxia has now become an important place for grape planting and production.Since the temperature is lower in winter,to prevent grape vines from drying and frozen damage,it is necessary to adopt a safety overwintering protection measure that grape vines are removed off from shelves and cover soil before the coming of winter.So it has certain economic benefits to realize the mechanization of the burying grape vine,at the same time,it is also a prerequisite for the sustainable development of grape industry.According to existing promotion grape vine burying machine has low broken rate,low soil sampling distance and low working efficiency problems,doing research on the grape agronomic requirements and existing vine burying machine,using modem design methods and theories,using computer aided design method,we designed a throwing type of grape vine burying machine,completed the design of various components of the machine;in view of the complexity stress of the plough,simplified and analyzed plough interactivity stress;simulated and analyzed the plough,soil throwing disc operate process;in the end,the field performance test of grape vine burying machine is carried out.The main research work and conclusions of this paper are as follows:(1)Designed the grape vine burying machine by using SolidWorks software.The machine is mainly composed of frame,chain transmission,shell,soil throwing disc,and plough,the power is transmitted by the wheeled tractor and driving knife shaft rotate,complete the process of ditching soil,scarifying soil,cutting soil,sampling soil,broken soil,throwing soil and burying grape vine operation.(2)Using ANASYS analysis the equivalent stress and equivalent elastic strain of soil throwing knife,based on the results optimizing the knife structure,to ensure enough strength during the soil sampling,soil throwing and soil covering process.(3)Analyzed plough and ground interactivity stress,optimized the tractive resistance of plough by using MATLAB,compare with calculation results,the tractive resistance 5183N within its range,illustrated regression equation and optimized results are valid,meanwhile feasible.(4)Based on the EDEM simulate the soil throwing disc and plough working process,analysis the soil broken rate and soil throwing distance of the rotary knife shaft speed is 150rpm,200rpm,250rpm,analys the plough resistance and particles velocity change trend under different working speed and working deep,the results show that the soil throwing distance is 81.09cm when the knife shaft speed is 250rpm,the plough working speed and deep increase,the resistance increases.(5)Prototype trial and field performance test were carried out,the test results show that,soil throwing distance is 86cm and soil broken rate is 99%,the machine can complete broken soil and burying grape vine working requirements,it has higher soil broken rate and better soil sampling performance,which can achieve the agricultural working requirements of grape vine burying.It is demonstrated that the performance of this machine meets the agronomic requirement for burying grape vine in winter.