Design And Research On Deep-position Handling Device Of Tissue Culture Basket In Facility Agriculture

Manual handling is operated by hand or body strength to carry or support heavy objects.The handling device is a type of mechanized equipment which is utilized to replace the manual handling,and has a wide application in the fields of logistics and warehousing.At present,the tissue culture baskets on the facility high-level cultivation shelves are still man-made.Moreover,in order to improve the space utilization,two rows of tissue baskets are placed on each floor.With the increase of labor costs and the shortage of labor resources,manual handling has been unable to meet the production requirements of modern facilities agriculture in high-speed development.Therefore,study on the deep basket transporting device of facility agriculture is necessary to promote the development of facility agriculture.In this thesis,we study the mechanism design,simulation analysis and experimental research on the handling device.Through setting up a crawling experimental device,the two methods of crawling experiments,and successfully achieve the crawl.The main work is listed as follows:1.According to the structural characteristics of the cultivation rack and tissue baskets,an innovative design of the grab mode,the lifting mechanism and the translation mechanism is carried out,the geometrical model of the three kinds of gripping devices is established,and the implementation process of the three devices is expounded further.In the end,contrast analysis determines the grab mode based on the multiplier of the trip.2.Based on the contact dynamics and the nonlinear continuous collision model,the collision model in the process of grabbing is established.The influence of the lifting speed and the horizontal speed on the crawling efficiency is studied in detail.During the Adams software simulation,the parameters of uplift and horizontal motion are determined through the comparison of several groups of experiments.3.Based on the multi-body dynamics model,the mechanical model of the grab device is built,and the dangerous working conditions of the grab device are calculated and simulated.The anti-dumping device is added,and through the simulation analysis,it is confirmed that the anti-dumping device can ensure the safe operation of the grab device.4.Finally,we complete the construction of the capture prototype device,and successfully carry out tissue culture basket capture experiment on facility agriculture.Through the design and research of the deep handling device of the training group of the facility agriculture group,the key problems in the process of tissue basket crawling are explored,which lay the foundation for further research.