NGHIEN CUU DONG Lire HOC MAY T l / DONG KHOA NONG TLT DO DYNAMICS OF AUTOMATIC FIRING MACHINE WITH FREE BOLT TS Dao \ ^ n Doan, KS Vo Ihi Hong Thang Hgc vien Ky thuat Quan sU TOM TAT Bdi bdo trinh bdy phudngphdp xay dUng md hinh tinh todn dgng hie hoc may tU dgng khoa nong tu tJng dung tinh todn dgng lUc hgc cho sung phdng lUu AGSl Ket qud cua bdi todn Id cdsd cho viic nghien citu, thiet ke, che tao vd khai thdc viX hoat dgng theo nguyen ly khoa nong tU TH khda: May tU dgng; Khoa nong tU do; Ndng sung ABSTRACT This paper presents a method to build models of dynamics calculations automatic bolt free Applications dynamics calculations for AGS 17 automatic grenade launcher Results of the problem is the basis for the research, design, manufacturing and using of automatic weapon bolt principle of freedom Keywords: Automatic firing machine, free bolt; Barrel l.DATVANDE trang bi cho cac luc lugng vii trang Vu tu ddng hoat dgng theo nguyen ly khda ndng tu hien van dugc phat trien tii sung ngan tu ddng cam tay, nhu K59 din Sling tieu lien MP5, hay siing phong luu tu ddng AGS 17, Cac tai lieu ve tinh toan, thiet ke cac loai vu deu la cac tai lieu mat khdng dugc phd bien Vi vay, viec xay dung md hinh tinh toan ddng lire hgc cho vu ty dgng hoat ddng theo nguyen ly khda ndng ty la ca sd de khai thac va thiet ke che tao theo mau cac loai vu hen, nham chii ddng san xuat nudc de XAY DlTNG MO HINH TINH TOAN Mo hinh nguyen ly siing tu dgng hoat ddng theo nguyen ly khda ndng tu (hinh I) [1,2,3] Khi ban, dudi tac dung cua ap luc thuoc, khoa ndng chuyen dgng lui ve sau cung cap nang lugng cho cac ca cau ty ddng lam viec KJii lui het dudi tac dung cua Id xo khoa nong day nd ve phia trudc thuc hien tdng d?n, ddng khda va phat hoa ISSN 0866 - 7056 TAP CHI CO KHf VIET NAM, Sd nam 2015 w>vw.cokhivietnam.vn NGHIEN ClJU - TRAO D I tang nang - Cac he sd C^, C diu la cac gia tri trung binh khdng ddi theo thdi gian 2.7.2 Cdc gid thiit ca hoc khdc [1, 2, 3, 6J Hinh Mo hinh nguyen ly may tu dong hoat dgng theo nguyen ly khoa nong tu do: 1) Lo xo khoa ndng; 2) Khod nong; 3) Vo dan; 4) Nong co dinh - Cac khau may tu dgng la rin tuyet ddi, cd khdi lugng tap trung; - Cac khau diu chuyen ddng song phang; Tir so dd nguyen ly trgn, may tu ddng khda ndng tu cd cac dac dilm sau: - Lien ket giira cac khau khong cd khe hd 1) Cd sy thay ddi the tich khoang khdng gian sau 2.2 He phiro^g trinh dau dan cd sy di chuyen cua khda ndng Tir md hinh va va cac gia thiet tren, ta khoa ndng bat dau chuyen ddng; xay dung dugc he phuang trinh md ta ddng 2) Chuyen ddng cua vd dan va khoa ndng bat thdi qua trinh chay cua thudc phdng, su chuyen dau dat ap suat day dau dan khdi mieng ddng cua dau dan d nong siing va quy luat chuyen ddng ciia khda ndng ty do: vd dan p^; 3) Tdn hao thudc xay chi tinh chay qua mieng ndng; 2