| In recent years,as people pay more attention to the traditional Chinese medicine,the market demand for decursivum quantity is increasing,but the current low level of mechanization production decursivum serious restricts the development of the industry decursivum.The development mode of production mechanization of decursivum mainly depends on the sowing and weeding process.At present,the decursivum sowing pattern is mainly artificial sowing and artificial sowing.Among them,artificial sowing has the advantages of saving seeds and making reasonable use of the environment resources,which is beneficial to the mechanized production.Compared with artificial sowing,artificial sowing has the advantages of labor intensity,high cost,low efficiency and other shortcomings.The weeding model is mainly artificial weeding and chemical weeding.Artificial weeding has the advantages of no pollution of the environment,loose soil,water and soil moisture,which is beneficial to the growth of crop seedling and no pesticide residue,but the artificial weeding has the advantages of high labor intensity,low efficiency,high cost shortcomings.At present,the domestic agricultural machinery mainly for the plain is inappropriate for mountainous areas,hilly areas of small land operations,nor in line with the requirements of the production of agricultural equipment.According to the Anhui city of Ningguo province for the main producing areas of decursivum mountainous and hilly terrain and the lack the status of the decursivum mechanized production equipment,combined with the premise in agricultural production and agricultural machinery developed a multifunctional machine for sowing and weeding.The research content of this paper is as follows:1.Through the research of access to information on current domestic and international micro seeding machinery and mechanical weeding machine structure,principle,characteristics and in accordance with the principle of combining agricultural machinery and agronomy of the agricultural expert and the production of decursivum planting production cooperatives for consultation.On the premise of combining agricultural machinery and agronomy,determine the overall design requirements of production decursivum.2.According to the structure characteristics of decursivum seed,sowing agronomic requirements and the structure characteristics of various types of seed metering device design a meet metering requirements decursivum sowing and the sowing test was carried out at the test bed to test the performance index of the metering device.3.The structure and parameters of the weed components were designed according to the cultivation pattern and the herbicidal requirement of decursivum,and the kinematic analysis and modal analysis were carried out on the weeding parts.4.According to the design parameters of the prototype of the trial production.The seed sowing and weeding test were carried out to examine the sowing uniformity,sowing depth,sowing rate,weeding depth,weeding rate and injury rate.The test results show that the prototype discharge uniformity of feeding,seeding depth and rate comply with the design requirements,verify the veracity and reliability of prototype design parameters and the feasibility of the machine drive.The weeding rate of the prototype,the depth of weeding and the seedling rate meet the design requirements. |
