Development And Experiment Research Of Conical Grape Vine Burying Machine

Grape cultivation has gradually become a symbolic development model in Ningxia,and has become one of the main channels to increase the income of local fruit farmers.Because of the special regional position in Ningxia,the winter temperature is very cold and the wind is very strong,so it is necessary to bury the soil to avoid the freezing and drying of the grape roots.The rattan burying machine used in Ningxia has the problems of low soil breaking rate and poor soil covering effect.Because of the complex structure,the large size of the machine can not be widely used in other areas.By investigating the agronomic standard of grape burying in winter,and investigating the research status of the existing grape vine burying machine,two kinds of models were developed by using advanced scientific methods:transverse cone burying machine and longitudinal cone burying machine.The selection of each component and the design of main components are completed.The kinematics analysis of the conical grape vine burying machine is completed.The relationship between the related parameters and job performance is obtained.The simulation analysis of the buried vine of the throwing blade is completed.The prototype trial production and field performance test were completed.The main research work and conclusions of this paper are as follows:(1)By using SolidWorks three-dimensional software,we have completed the modeling and design of the whole machine.The longitudinal cone vine burying machine is composed of frame,triangle hanging frame,shell,throwing blade,plough body,rotary tiller and lifting knife.The transverse cone grape burying machine is composed of frame,tripod,shell and rotary tiller.(2)The kinematic analysis of the reverse rotation process of the transverse cone grape vine burying machine was carried out to obtain the lateral split velocity when the soil was thrown out.The soil was thrown to the side under the guidance of the hood.The rotary tillage knife had external force on the soil in the direction perpendicular to the tractor,and then tore the soil laterally,which was beneficial to increase the rate of soil breaking;Based on the theoretical analysis of the cutting pitch and the raised height at the bottom of the trench,it is concluded that the design of oblique angle can reduce the pitch of cut soil and reduce the power consumption of broken soil,and the dynamics analysis of the soil throwing during the oblique reversal operation of the transverse cone grape burying machine is carried out,which lays a foundation for further study of the soil throwing situation.Moreover,the rotational speed of the sliver of the longitudinal conical grape vine burying machine was analyzed and calculated.Finally,the rotational speed of the slitter shaft is selected,and it is 1 50 r/min.(3)Based on the discrete element method,the simulation of the operation process of the machine is simulated the distance and amount of soil collected from the burying machine all meet the requirements of agronomy.Besides,the static analysis of the blade and rotary tiller is done by ANSYS analysis software,and the structure meets the strength requirement.(4)The experimental results show that the amount of soil taken by transverse cone grape burying machine is 0.23 m3/m,the distance of throwing soil is 83.2 cm,the rate of breaking soil is 87.24%,the amount of soil taken by longitudinal cone grape burying machine is 0.2239 m3/m,the distance of throwing soil is 90.63 cm,the rate of breaking soil is 87.72%,Both models can meet the agronomic requirements.It solves the problem of the low rate of soil breaking in ploughing machine.