The harvest of Mongolian Astragalus in saline-alkali land mainly adopts the manual harvesting method,which has low labor intensity,low efficiency and high loss rate.A Mongolian Astragalus harvester suitable for saline-alkali soil is designed,which can complete the digging,root soil crushing,separation,transportation and centralized stacking at one time,and can effectively improve the harvesting quality of Mongolian Astragalus in saline-alkali soil.Meanwhile,the strength check and modal analysis of the frame and digging device are carried out by means of simulation.The results show that:The maximum stress of the frame is 41.62 MPa,and the maximum stress of excavating device is 66.73 MPa,both of which are less than the material yield limit of 220 MPa;The minimum modal natural vibration frequency of the frame is 38.99 Hz,the maximum is 99.30 Hz,and the minimum modal natural vibration frequency of the mining device is 39.97 Hz and the maximum is 236.11 Hz,both of which are greater than the excitation frequency of the unit during operation,and meet the design requirements.
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维普
万方数据
