Nghiên cứu thiết kế cải tạo bộ đồng hồ tốc độ trên đầu máy JMD D14ER

NGHIEN Ctru THIET KE CAI TAO BO DONG HO TOC DO

TREN DA U MA Y JIMD bl4ER

PGS. TS. DO VIET DUNG

Bd mdn Ddu mdy - Toa xe

Khoa Cff khi

ThS. NGUYEN VAN NGHIA

Bg mdn Ky thugt dien

Khoa Dien - Dien tti

Trudng Dgl hoc Giao thdng Van tdi

lorn tat: ^^^ ^^^ ^ ^ DI4E lap dgt ddng hd do ghi tdc do logi LRS-I do Trung Qudc

sdn xudt. Logi ddng hd ndy cd nhugc diim la khdng cd the nhd di cd thi dua vi bd phdn

chuyin trach di phdn tich. Vi vdy viic dgc vd kiim tra tdc do sau mdi chuyin tdu la rdt khd

khdn, khd chinh xdc vd rdt tdn nhiiu thdi gian, cdng siee. Bdo cdo trinh bdy cdc kit qud nghien

cim tan dung cdc bg phdn, chi tiit ciia ddng hd LRS-I cua ddu mdy D14E di thiit ki cdi tgo

bg do ghi tdc do di nd cd dii cdc chuc ndng do, ghi, hiin thi, lu-u trie cdc thdng sd.

tmary. yy^^ record and measurement speed meters LRS-I are installed in JMD

D14ER made by China. The disadvantage of this speed meter is without a memory card so

data cannot be analyzed. Therefore the reading and checking train 's velocity is veiy difficult,

inaccurate and time wasting. To record, measure and'display speed accurately, this speed

meter needs to be innovated. Thus, this report presents research results of making use ofLRS￾1 's details in JMD DI4ER to design and produce innovative record and measurement system

that has sufficient functions.

I. DAT VAN DE

Hidn nay trdn cac dau may diesel khai thac tren Dudng sat Viet Nam (DSVN) sir dung he

thdng do ghi, hidn thj tdc do (ddng hd tdc do cd bd ghi) cua nhidu nude khac nhau. Cae thidt bj

nay, neu nhap khau thi cd gia thanh rat cao va khdng chii ddng dugc vd vat tu phy tiing hoac

phin mem thay thd khi bj sir cd. Mdt sd khdng nhd cac dau may lap he thdng do ghi lae hau,

khdng dam bao ehinh xae (D12E - thidt bj ghi trdn giay ndn chuydn dimg). Cae diu may D14E

lip dat ddng hd do ghi tdc do loai LRS-1 do Trung Qude san xuat ed nhidu nhugc didm va

khdng cd phu timg thay the. Xuit phat tii' nhu cau can dam bao do ghi va hidn thj tdc do dugc

chinh xae, giiip cho tai xd chay dung tdc do va ngudi quan ly giam sat kidm tra, danh gia tdc do

diu may dugc chinh xae, can nghidn cii'u thidt kd eai tao bd do ghi tdc do cho cac dau may nay

dd nd ed dii eac chuc nang do, ghi, hidn thj, luu tru' du lieu vao the nhd thdng dyng cac thdng sd

quan frgng cua qua trinh khai thac: tdc do, quang dudng va thdi gian chay tau, ap lye dng ham

cho dau may D14E la nghien ciiu ung dyng rat can thidt cho boat ddng kinh doanh eua nganh

DSVN.

138 Tap chi KHOA HQC GIAO THONG V^N TAI S6 31 - 09/2010