Research On Excavating Working Components Of Factory Panax Notoginseng Harvester

Panax Notoginseng is a unique Chinese herbal medicine that is unique to China,among which the yield is mostly in Yunnan Province.Panax Notoginseng has the pharmacological effects of stopping bleeding,inducing pain,and protecting the liver.It also has significant curative effect on the prevention of cardiovascular and cerebrovascular diseases.With the rapid development of the Panax Notoginseng industry in Yunnan Province,the market demand continues to increase,resulting in the continuous expansion of the planting area of Panax.However,due to the continuous obstacles in Panax Notoginseng,the Panax Notoginseng industry is facing a series of crises.In order to overcome the continuous obstacles to the development of Panax Notoginseng,relevant departments and research institutes established a modern bionic planting base for Panax Notoginseng in the Shilin,and used bionic technology to simulate the three.In the seven-planting environment,a set of bionic techniques to overcome continuous cropping obstacles was established.At present,Panax Notoginseng of the bionic planting base uses artificial harvesting mothod,with low efficiency and high labor intensity,which brings great economic burden and property loss to the enterprises and departments that planted Panax Notoginseng.Although domestic research has been conducted on Panax Notoginseng harvesting machinery,all of them are aimed at outdoor field operations and cannot meet the harvesting requirements within the factory.In this paper,according to the planting and agronomic requirements of Panax Notoginseng in the factory,from the perspective of reducing the weight of the whole machine,reducing the working resistance and improving the harvesting efficiency,the excavating working parts are optimized,and the motion simulation analysis is performed,and cooperate with Yang Haihui to complete the production and installation of the prototype,and conduct field experiments.This paper relies on a major project of science and technology innovation in Yunnan Province: "to overcome Panax Notoginseng continuous cropping system construction" of the sub-projects "to overcome Panax Notoginseng continuous cropping engineering machinery and equipment and research and development facilities",the specific research contents are as follows:(1)Through on-the-spot investigation of the Bionic Planting Plant of Shilin,we understand its planting agronomical requirements and the basic characteristics of planting soil,and provide reference for digging the design of work components and complete machines.(2)Based on the harvest conditions of factory planting Panax Notoginseng,the excavating working parts were designed.By comparing the advantages and disadvantages of different types of excavating devices and root soil separating devices,the design criteria of excavating shovel and separating screen were obtained,and a vibrating excavating shovel was designed.Through the theoretical analysis to determine the main structural parameters,the digging shovel length is 350 mm and the separating screen length is 800 mm,and optimize the optimal rod length by simulation analysis.(3)The power selection of the working parts was determined.DC planetary gear motors were selected.the controllers,potentiometers,and reverse switches were used to achieve forward and reverse rotation and acceleration and deceleration,which satisfied the test requirements.(4)The movements of the excavating shovel and the separating sieve were analyzed,and their respective movement models were established.The analytic expressions of the angular displacement,velocity and acceleration of the excavating shovel and the separating sieve were obtained.Through the motion analysis of the material on the separation screen,the crank rotation speed and the crank radius are found to affect the parameters of the movement of the screen.The design of the crank speed must satisfy 127 r/min≤n≤348 r/min.(5)Through the ANSYS static analysis software,the stress and strain of the single excavating shovel and the whole excavating shovel in the excavating shovel operation process are analyzed.The ADAMS kinematics analysis of the entire excavation working part was performed,and the movement of each working part was clearly and intuitively observed through the animation.The angle parameter variation curve and the centroid acceleration curve of the excavation shovel and the separation screen were obtained,and were successively selected on the separation screen.Before and after the endpoint and center of mass point,analysis of displacement changes,the above analysis of each curve found that the digging shovel and the separation sieve movement in the opposite direction,the centroid acceleration in the opposite direction,offset part of the inertial force,while the displacement of the separation screen points in order of front-end The point,centroid point,and post-end point ensure that the mixture of roots and roots in the Panax Notoginseng can be transported smoothly to the rear,which is in accordance with theoretical analysis.(6)Design,install and debug the designed excavation working parts,and cooperate with Yang Haihui to complete the assembly of the whole machine.The working parts are installed in the middle part of the machine and equipped with lifting screw,which can realize the overall lifting.A idling test was performed on the working part to verify that it worked smoothly both clockwise and counterclockwise,and there was no jamming.The vibration excavation of the digging shovel and the effect of shaking and soil removal by the separation screen were verified on the field.The test results showed that the use of vibratory excavation and separation method significantly reduced the amount of soil,the soil crushing effect was better,and the soil fluidity was enhanced,which was conducive to the realization of three.The root and soil of the seven soil mixture are separated.