Mechanical analysis of garlic bolting process and influence of bolting po-sitioning hook improvement on bolting effect

WANG Chonghua; MA Ruiliang; CHONG Jun; JIA Qingchao; DUAN Xinhua; LIU Yiqun; HE Yongtao; CHEN Shichang

doi:10.16861/j.cnki.zggc.2024.0405

Abstract：In response to the problems of high bolt breakage rate and low efficiency in locating the middle position of plants in the hook type bolting device,the metal nails on the bolting device were improved from pointed to blunt,and mechan-ical analysis was conducted on bolting and bolting.At the same time,comparative experiments were conducted on the effi-ciency,length,rate,yield,and usage evaluation of different bolting devices before and after the improvement.The results showed that from the perspective of the bolting process,the bolting intensity varied in an"S"-shaped curve with time.After the improvement of the bolting device,the fastening force of blunt metal nails was 3.4 N greater than that of pointed metal nails.Although the improvement was more laborious,the design of the action and reaction forces of the hook and lift bolting device did not affect the user experience.After the improvement of the bolting device,it became quicker to locate the middle position of garlic stems,and significantly increasing the bolting efficiency to 101.33 stems·10 min-1,which is an increase of 11.00 stems·10 min-1 compared to before.The bolting rate reached 94.33％,an increase of 5.20％compared to before the improvement,reaching a highly significant level.The yields of garlic sprouts and garlic heads were 141.87 kg·667 m-2 and 1 692.43 kg·667 m-2,respectively,with no significant difference compared to before.Over-all,the improvement of the bolting device has increased the efficiency and rate of bolting,without affecting garlic sprouts and garlic yield.At the same time,the mechanical analysis results of the bolting process can provide a theoretical basis for the mechanization research of garlic sprout extraction.