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Design And Experimental Study Of Broken Shall Walnut Roll-type Machine

Posted on:2016-05-08Degree:MasterType:Thesis
Country:ChinaCandidate:Z HaoFull Text:PDF
GTID:2283330467990081Subject:Agricultural mechanization project
Abstract/Summary:PDF Full Text Request
China began to break the shell machine research and development from the1980s, but due to sometechnical difficulties, such machines has not been large-scale promotion and application. To achievemechanized production process, will help us to race against time to fight speed, support trade machinery totake Jen has taken to improve the quality of hope. At the same time, large-scale centralized processing,easy utilization.This thesis has been studied in four areas:(1) in-depth studies and summarizes current research walnut shell broken machinery, and summarizetheir advantages and disadvantages;(2)in-depth study of the southern walnut, research Southern walnut summary characteristics ofresearch;(3)the water content of experimental research;(4) design or manufacture a roll style walnut shell broken machinery;(5) the design and production of broken shell machine test, and further optimize the machine. Analysisof the factors affecting the course of the experiment on each indicator.Research and achievements include the following aspects:(1)Using Near Infrared Spectroscopy to do the nondestructive analysis on Southern Water temperature185Walnut, the spectral data were pretreated by SNV, adopted partial least squares regression (PLS)regression model, and achieved the smaller SEC value and higher RC values. The average deviation ofSNV predictive value was0.35%, which meets the requirements of conduct water testing can be carriedout on the southern warm water185Walnut forecast.(2)According to the geometry and physical parameters of walnut, the physical properties andmechanical structure of the broken shell walnut Xinjiang was studied, walnut stress state in differentdirections under load and test the mechanical properties of walnut shell analysis.(3)Designed a new roll style walnut broken shell body. Draw-dimensional and three-dimensional CADdrawings PRO-e map, and through scientific calculations and key parts of the ANSYS simulation,prototype machining, the last of machined prototype testing demonstration shows: We designed the walnutshell-breaking machine greatly improved efficiency and save labor. Broken shell and whole kernel rate wasalso significantly improved. This machine can adapt to the needs of the people working for walnut.
Keywords/Search Tags:simulation, device optimization, broken shell ratio, the whole kernel rate
PDF Full Text Request
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