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Study On Characteristics Of Mulberry Shedding Vibration And Vibration Picking Plant Design

Posted on:2017-04-23Degree:MasterType:Thesis
Country:ChinaCandidate:H X DingFull Text:PDF
GTID:2283330485980788Subject:Agricultural engineering
Abstract/Summary:PDF Full Text Request
With the diversified development of sericulture industry, mulberry acreage increased year by year, only rely on manual difficult to achieve mulberry harvest to meet production needs of the moment, so mechanized picking mulberry picking is the development direction of vibration harvesting,and mechanized picking is effective method of vibration harvesting income, study on mulberry vibration characteristics of shedding and design-related vibration harvesting equipment in order to promote the healthy development of the muberry industry.By studying the main factors when picking mulberries vibration inertial force, build off vibration characteristic test platform, and complete mulberries off the vibration characteristic test, determine the vibration parameters of picking mulberries vibration device, whereby the trial design portable vibration mulberry picking devices. The main conclusions are as follows:(1)Through the mulberry harvest vibration inertial force influencing factors concluded that the main factors mulberry collateral inertia force of the vibration amplitude and vibration frequency, the greater the amplitude, the greater the inertial force; the higher the excitation frequency, the inertia force the greater;(2)By the vibration off Mulberry Experimental study concluded that the mulberry secondary truck which including first-order resonance frequency that range of 4.72 Hz to 5.76 Hz and second order resonance frequency range of 9.43 Hz to 11.44Hz; The ripe mulberry fruit instant shedding speed was in the range of 1606 mm / s to 2200 mm / s;(3) The simulation analysis results show that: when the device amplitude of 18 mm, the excitation frequency can be specified to meet the vibration of Mulberry instantaneous speed of demand;(4) By the vibration picking device making and outdoor vibration harvesting test,the result indicates that the vibrating means picking achieve the desired design requirements, he device can be used for vibration ripe mulberry fruit harvest.
Keywords/Search Tags:mulberry, vibration, resonance frequency
PDF Full Text Request
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