Thdng tin khoa hpc cong ngh? m d
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DIGHIEN CUdJ THIET KE, C H | TAO COT VA CUM XILANH THUY LUC CUA DAN CHONG TIT HANH SlTDUNGTRONG CONq NGHE KHAI THAC
HA TRAN THU HOI THAN NOC TAI CAC MO HAM LO
For studying, designing and mastering the technology in support manufacture, in the penod of 2011 -2012, Institute of Mining Science and Technology (llvlSAT) has been assigned to cany out the theme "Study on design and manufacture of the hydraulic props and cylinder biocl^s for the self-advancing shield support used with top coal caving technology at under- ground coal mines" by the Ministry of Industry and Trade.
The paper introduces the successful results from the implementation of the above theme under the coordination betv\/een IMSAT and Vinacomin Machinery Company
Trong nhOng nam gan day, Tap dodn C6ng nghipp Than - Khoang san Vipt Nam (Vinacomin) die biet quan tdm d l u tu phdt tnin ITnh vyc c h l tao cdc san pham, thilt bj mo nhim ddp ung nhu clu cua san xult, thay t h i nhap ngoai, giam chi phi, ndng cao hipu qua san xult kinh doanh vd nang cao nang lye cua cde don vj co khi trong ngdnh. Nhieu loai mdy moc, thilt bj mo va cac san phim CO khi da duoc nghien CCPU, thilt k l , c h l tao thanh eong vd duoc dua vdo su dung trong san xult, mang lai hieu qua kinh t l ky thuat Idn, trong do, noi bat nhlt Id edc thilt bj phyc vy khai thac him 16 nhu gid khung thuy Iyc di dpng GK/1600/1.6/2.4HT ddn chong ty hdnh VINAALTA.
KDT-1,KDT-2.
Trudc ddy cdc thilt bj gid khung thuy lye di dpng, dan chong ty hanh... phai nhap khau tu nudc ngodi, gia thanh cao, phy thupc vdo nhd cung cap trong viec bao duong, sua chua, thay t h i linh kipn, phy tung. De dam bdo san xuat lien tyc cac don vj thudng phai mua dy phong so luong chi tilt, phy tung Idn, gay ton kho anh hudng tdi hoat dpng san xult kinh doanh ehung cua don v\. Nham tao dieu Idpn cho cdc don vj san xult chu dong, co them nhO'ng san phim chit luong, an toan, gid ca canh tranh vd giam chi phi san xult cho cdc don vj khai thae than, tu nam 2007, thong qua ede de tai nghidn cuu khoa hpc d p Nhd nude, cap Bp, Vipn Khoa hpc Cong ngh0 Mo - Vinacomin phoi hop vdi eae don vj nghien cuu, san xult c h l tao trong nudc vd d l i tdc nudc ngodi da thilt k l , c h l tao thdnh cong edc loai thilt
ThS. DOAN NGOC CANH Vidn Khoa hoc Cdng nghd Md - Vinacomin
Ddn chdng VINAALTA
Din chdng KDT-2
KHCNMs64/20I3*CODl£N-TLrD6N(;Jl6AMO
Thong tin khoa hoc cong nghe mo
bi ndy. Cho d i n nay, san phim gid khung thuy Iyc di ddng GK/1600/1.6/2.4HT dd dypc dya vao dp dung d h l u hit cdc md ham Id, ddn chong ty hdnh VJNAALTA. KDT - 1 , KDT-2 da dyp-c dya vdo dp dung trong dong bd thilt bi ca gidi hda khai thde than tgi Vdng Danh, Nam Mdu, Hd Rdng...
Tuy nhien, trong giai dogn dau nhyng san phim tren mdi ehi gia d n g c h l tgo ede k i t c l u ca khi. phin he thdng thuy Iyc vdn phai nhgp khlu. Nhytren hinh a, trong 16 chi tilt k i t d u cua ddn ching VINAALTA d 9 ehi tilt Id xi lanh d c logi, tyang irng ty trpng c h l tgo trong nydc mdi ehi dat khoang 50% gid tri ciia ddn chdng. Be tilp tuc nghien ciru, thilt ke, lam chii cdng nghe ehi tao dan chong, tiln tdi che tgo hodn toan trong nydc, nam 2011 - 2012 Vipn Khoa hpc Cdng nghe IVld dyac Bd Cdng Thyang giao thye hien de tai
"Nghien cuv thiet ke, che tgo cgt va cum xi ianh thuy Iwc ciJa dan chong tw hanh s y dgng trong cdng ngh$ khal thac ha tran thu hoi than noc tgi cac mo him Id".
Vdi yeu d u Iyc chdng dd Idn (han 200 tin), dp lye Idm vipc cao (32 * 42 MPa), xi lanh dype thilt k l cd k i t c l u bat ren vd hdn glya bich ddy va Ing, tdng eao dd b i n m l i ghdp. K i t d u giy can yd piston sir dyng m l i ghep ren dam bao chdc chan vd dd linh ddng. Hp thdng gipdng phdt lya chpn logi chju mdi mdn, phii hpp vdi dilu kipn Idm vipc dp suit cao vd mdi trydng d l u nhu hod.
2. Xi lanh di c h u y i n dan (hinh 2)
Hlnh a, Ciu tao din ching tuhinh VINAALTA Trong qud trtnh thye hien cdc ndi dung nghien ciru ciia de tdi, Vien Khoa hpe Cdng nghe Md da phoi hop cung Vipn Cdng nghe - Tdng eye Qudc phdng va Cdng ty CP C h l tgo May - Vinacomin (VMC) c h l tgo thdnh cdng cdc d t vd cum xi lanh thuy lye ehinh eho dan chong t y hdnh ViislAALTA.
Cdc san phim cu t h i nhy sau:
1. Xi lanh cpt d i l u k h i l n nang hg dan (hinh1)
Ddy Id 2 xi lanh chinh dilu khien ndng hg toan bp hp thdng xd chong giy da ndc ciia dan chdng.
=A- ^^-j=i
;^"1-
^^^HnH^P^3
^ J 1
1-Di cdt; 2- Cum ecu him piston; 3- Piston;
4- Diu ndi cip dich; 5- dng xl lanh; 6- Cin piston;
7- Diu ndi hdi dich; 8- BIch diu xi lanh.
Hlnh 1 Ciu tao xilanh cdt
1-Gii dBr 2-Dixl lanh; 3- Cum icuhim piston; 4- Piston;
5- Diu nil cip dich: 6- Ong xi lanh; 7- Cin piston;
8- Diu ndi hdi dich; 9- BIch diu xi lanh, 10- Diu ndi Hinh 2. Sa di ciu tgo xi lanh dliu khiin dl chuyin din KIICNM S 6 4;2013« CO D i t N - T I / B O N G HOA MO
Thdng tin khoa hoc cong nghg md Bing 1.
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TT 1 2 3 4
Ten sin pham Xi lanh c6t dieu k h i l n ndng ha ddn Xi lanh di c h u y i n ddn Xl lanh dieu k h i l n hd t h i n g mdi 6&
Xi lanh dieu khien c o c l u ha tran thu hoi than ndc
Biedmg kinh xi lanh 220 x 25mm 160 x 2 0 m m 160 x 2 0 m m 90x15mm
Du^g kinh can
180mm 100mm 90mm 70mm
Hinh trinh max
730mm 750mm 320mm 1050mm
Ap suit lim vi0c 32 MPa 32 MPa 32 MPa 32 MPa
Dung djch lim vi^c Dau nhu hod Dau nhO hod Dau nhO hod Dau nhO hod Ld xi lanh lien kit giua dan chong va mang cao.
No CO nhipm vy day mdng edo vd keo di chuyen ddn chong trong qud trinh tiln guong eua 16 eho
a{
U Diu ndi cfciu. 2- Ong xi lanh. 3- BIch (3au xi lanh, 4- Diu ndi cip dich, 5- Can piston. 6- Ddu ndi hdi dich, 7- Piston: 8- Cum ecu him piston 9- Diu ndi dudi.
Hinh 3. Ciu fgo xi ianh diiu khiin he thdng mii dd
1- Diu ndi diu; 2- BIch diu xi lanh; 3- Ong xi lanh;
4- cin piston; 5- Diu ndi cip hdi djch, 6- Piston;
7- Cvm ecu him piston; 6- Diu ndi dudi.
Hinh 4 Sa dd ciu t^o xi lanh diiu khiin h? trin thu hdi than ndc
dong bp co gidi hod.
3. Xi lanh dilu khiln he thing mdi do*
(hinh 3)
Trong dan chong su dyng 2 xi lanh nay de ndng ha xd chinh d l do noc phia g i n guong, dam bao tilt dipn thong gio cho 16 cho vd khong gian lam vipc an todn cho khu vyc van hdnh thao tdc.
4. Xi lanh dilu khiln cc clu h? trdn thu hdi than noc (hinh 4)
Xi lanh CO nhi0m vy dilu khiln d6ng md cua thu hii tren xa pha hoa de thu hoi than noc trong qud trinh khai thdc.
Cae loai xi lanh tren duoc thiet k l chl tao vdi cac th5ng so eg t h i (bang 1), ddp ung yeu cau ky thudt cua dan chong VINAALTA san co.
Vdi yeu cau cao ve an todn su dyng, sau khi c h l tao, cde XI lanh thuy lye deu duoc kilm dinh day du theo TCVN vd tieu chuan ngdnh ve kiem (Snh cpt chong thuy Iyc. San phim dam bdo cde thong s l ky thuat, tieu chi, chit luong theo yeu elu. Hipn eac san phim dang duoc Ilp dat trong dan chong VINAALTA tai 16 cho co gidi hoa via 6, khu Than Thung, Cong ty than Nam Mdu d l thu nghipm va danh gid chit luong trong thye tiln san xult. Kit qua theo doi ban d l u , cde xi lanh thuy luc nay lam vipe on dinh theo eae thong so ky thuat thilt ke.
Thanh cong cua viec nghien cuu c h l tao xi lanh thuy Iyc dudng kinh Idn su dyng trong ham 16 da ghi nhan mpt budc tiln mdi trong cong tdc thiet k l , c h l tao thilt bj mo cua Vipn Khoa hpc Cong nghp Mo va cdc don vi co khi trong nganh, khdng &mh nang Iyc Idm ehu eong nghp chl tpo cde thilt bj su dyng trong ngdnh khai thae than, tao da cho cac dy an nghien cuu c h l tao cdc san pham tilp theo nhu thilt bj tn^c tai cho gilng dung, cae logi van thuy Iyc, dan ching ty hanh... phyc vu cho qua trinh co gidi hoa, hipn dai hoa khai thdc him k) cua Vipt Nam./.
KHCNM S 6 4/2013* CO DifiN -TL^ D O N G IIO V MO
