Research On Excavating Working Components Of Remote Control Panax Notoginseng Harvester In Greenhouse

Panax notoginseng is a rare Chinese herbal medicine,Panax notoginseng has high medical and nutritional value.Along with the market demand unceasingly increases,causes the Panax notoginseng planting area to exPand unceasingly.In order to overcome the continuous cropping obstacles of Panax notoginseng,Yun Panaxnotoginseng group established the modern bionic planting base of Panax notoginseng.The artificial harvesting method of Panax notoginseng in bionic planting base has great labor intensity and high work cost,which seriously restricts the industrialization development.At present,only professor Zhang zhaoguo's team from the school of Kunming University of science and technology has carried out relevant research,and has developed three prototypes,but it is the first intelligent remote control Panax notoginseng harvester.In view of the agronomic requirements of Panax notoginseng cultivation in greenhouse,this Paper developed an intelligent remote controlled Panax notoginseng harvester which is safe,reliable,easy to operate and suitable for the planting mode of Panax notoginseng in greenhouse from the perspective of reducing labor intensity,increasing labor income and improving the quality of Panax notoginseng harvest,and carried out performance tests on the prototype.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)According to the agronomic requirements and characteristics,the whole structure of the remote control notoginseng harvester was determined through the field investigation of the bionic planting plant of Yunnan Shilin notoginseng.The crawler walking chassis was adopted and the remote control handle could be used to adjust the movement posture of the harvester and the movement of the remote control digging working parts.(2)Determine the selection of control system hardware,choose Ac asynchronous motor,with frequency converter,PLC controller and remote control controller can achieve the machine forward,backward,turn and other actions.(3)Remote control system was designed of notoginseng harvester,including upper computer and lower computer control system,sending instructions to the lower computer control system through wireless communication,to achieve the operation attitude adjustment of notoginseng harvester.(4)The frame and shovel are analyzed by ANSYS statics analysis software.EDEM was used to simulate the excavation shovel and the separation screen,and the movement trace of soil particles around the working parts was obtained.The rationality of the design of each part was determined by simulation.A bench test was carried out to simulate the working environment of the greenhouse to observe the effect of excavation and separation of working parts.(5)Optimize the design to determine the overall plan,cooperate with Du zonglin to complete the assembly of the whole machine,and conduct field performance tests on the prototype.Test results show that the remote control remote control system of notoginseng harvester response in a timely manner,sensitive operation,walk straight displacement deviation of the maximum is 14.56 cm,can be turn in place volume decreased significantly,the vibrating screen separation effect is good,is advantageous to the realization of notoginseng root soil mixture of root soil separation,harvest rate is greater than 96%,the injury rate below 5%,meet the design requirements.