NGHIEN ClJfU - TRAO Dpi ^ ITNG DUNG CIRCUIT MAKER OE MO PHONG CAC KHAU TRONG BO DIEU KHIEN TRUYEN DONG QUAY MAY KHOAN XOAY CAU CBIU-250T USING CIRCUIT MAKER T O SIMULATE THE CONTROL BOARD OF ROTATION ELECTRIC DRIVES IN ROLLER CONE DRILL MACHINE CBm-250T TS Nguyen Chi Tinh, TS Khong Cao Phong Trfldng Dai hpc Md - Dia Chat TOM TAT Mdy khoan xoay cau la thiet bi hien cdn dUcfc sti dung rdng rdi cdng nghiep khai thdc mo d Viet Nam De hd trd cho viec ddo tao cdng nhdn van hdnh si(a chtia cho cdc thiet bi ndy thi viec sti dung phdn mem md phdng Id cdn thii't vd dat hieu qud cao Ndi dung bdi bdo de cap tdi viec si^ dungphdn mem Circuit Maker de md phdng mach dien tti dieu khien cho mdt he truyen ddng chinh cua mdy khoan xoay cdu TU khda: Circuit maker, md hinh hda, mach dieu khien, mdy khoan xoay cdu, CBIII-250T ABSTRACT Electric roller cone drill machines are till now the equipments used widely in Vietnam surface mining industry In order to train the maintenance and operating workers, the simulation softwares are very useful They give very high efficiency in the training courses This paper refers to use Circuit Maker software to simulate the control circuit of drive system of the Electric roller cone drill machine Key words: Circuit maker, simulation, control board, roller cone drill machine, CEIII-250 TAP CHi CO KHI VIET NAM, Sd 12 nam 2013 NGHIEN ClJfU-TRAO 061 MO DAU May khoan xoay cau la thiet hi dflpc sfl dung de tao cac 16 khoan tren nen dat da phuc vu cho cdng tac khai thac khoang san bang phflong phap nd Cac may khoan xoay cau dflpc dfla vao sfl dung d nUdc ta tfl nhflng nam 60 Lien Xd san xuat Hien nay, cac may khoan xoay cau vin cdn dflpc sii dung va mang lai hieu qua kinh te cho cac md Id thien cua tap doan than khoang san Viet Nam Tai lieu ky thuat cua cac loai may khoan dflpc cung cap rat day du va chi tiet kem theo vdi thiet bi Tuy nhien, de hieu va nam vflng duoc cac tai lieu dd ddi hdi nhflng ngUdi cd chuyen mon sau De dao tao kien thflc cho cac cdng nhan ky thuat hieu va nam vflng ve loai may khoan de cd the van hanh va sfla chfla mdt each hieu qua ddi hdi phai cd phflOng phap day true quan Vi vay, viec sfl dung cac phan mem md phdng di md hinh hda cho he thong dieu khien cua may khoan la rat can thiet phuc vu cho viec dao tao van hanh sfla chfla Hinh 1: Sd mach md phong khau dong hd - - ' ' • ' • ; , i • ' , I •! ,-„. - _ _ - , • * - • * * — • ' • — Hinh 2: Do thi dtidng ddc tinh diin dp dong bd He thdng truyen dpng quay cua ty khoan la mdt he thong truyen ddng chinh cua may khoan Do dac diem cdng nghe nen he thdng ddi hdi kha nang sinh md-men Idn gap phai dat da cflng va kha nang tang toe gap dat da mem de tang nang suat khoan Vi vay, dac tinh truyen ddng cua he truyen ddng cd dac diem gidng dac tinh cua may xuc Dac tinh truyen dpng quay cua may khoan dflpc thflc hien bdi he truyen ddng chinh luu - dpng ca (CL-D) De tao dUpc dac tinh nhfl yeu cau cdng nghe, d may khoan xoay eau sfl dung cac mach dien tfl tflpng tu dieu khien Trong bai bao nay, de cap tdi viec md phdng eae khau mach dieu khien mach chinh lflu cua he truyen ddng quay cho may khoan bang phan mem Circuit Maker NOI DUNG M6 phdng khau dong bp Hinh 3: Dd thi dudng ddc tinh dien dp trin tu C^, Nhan xet: Dien ap hinh sin tren tu C^ (hinh 3.2) la dien ap dong bp, dflpc dfla tdi cfla vao mpt kenh cum VC R^^, R^ va tu dien C , tao bd Ipc tin hieu dong bd nhan dUpe tU may bien ap Trong chu ky thdi gian, thdi diem : , dien ap dong bd cd gia tri dUPng, tranzitor V^^ ddng lai, tu dien C,^ se nap den dien ap 24V theo mach: diot V,^, dien trd R^^ Vao thdi diem tl, ma dien ap ddng bd chuyen qua "0" va trd nen am, tranzitor Vj^ md va tu di?n C^^ phdng di?n theo maeh: diot V , dien trd R,^, tranzitor V^^ ^ TAP CHi CO KHf VIET NAM, Sd 12 nam 2013 lOH NGHIEN CUTU-TRAOOdl Md phong khau dich pha Hinh 4: So mach md phdng khdu djch pha (TrUdnghdp U - lOV) Hinh 5: Dd thj dUdngddc tinh diin dp tren cticphdt Transistor VJTrtidnghap U,= 15V) tren cflc goc bazcf cua V^^ xuat hien xung dong bd phan cflc dflcftig, tranzitor V,g va V^^ ddng lai Tren cflc phat tranzitor Vj^ xuat hien di^n ap phan cflc am, bang dien ap dieu khien U =(0 |24)V Tu dien C^j bat dau nap ddng dien chay qua mach "0", ngudn dien ap dieu khien, diot Vj^, dien trd Rj3, Rjg, R^g Cung vdi thdi gian nap dien ap d tu dien C,, tang len, dan den dien ap tren cflc phat tranzitor V,g tang theo tdi gia tri bang tong dien ap nap tu dien C^^ vdi di$n ap dieu khiln Dien ap tdng se tiep tuc tang cho tdi dat dflpc gia tri dien ap can bang so sanh UCP Vao thdi diem dd diot V^^ md nen cd ddng chay theo mach sau: Ngudn ap so sanh, diot V^^, tiep giap goc phat Vjg, dien trd R33, R^^ nguon 150V cd ddng dien chay qua Tranzitor V^g, V^^ lai md Tu C^^ phdng dien theo mach: diot V^^, tranzitor V^^, V^^ Dien ap tren c\ic phat tranzitor V^^ lan nfla lai trd ve "0" d thdi diem t^ cd xung ddng bd mdi dUa tdi kenh khac Tu C^^ dflpc dung de nang cao kha nang chdng nhilu Nhfl vay, d cflc phat den V^^ dang dien ap cd dang hinh thang vudng xoay di mdt gdc 90", gdc lech pha < xac dinh bang thdi gian nap cua tu C^^ tdi thdi diem ma dien ap b cflc phat den V^^ bang dien ap so sanh U^^ Gia tri cac gdc