Xây dựng mạch điều khiển truyền động thuỷ lực đa điểm trên các máy nông lâm nghiệp tự hành

Tap chi Khoa hgc va Phat triln 2009: Tap 7, sd 5: 678 - 686 TRU'ONG BAI HOC NONG NGHIEP HA NQI

XAY DUYJG MACH DIEU KHIEN TRUYEN DONG THUY LUC DA DIEM

TREN CAC MAY NONG LAM NGHIEP TlT HANH

Designed Multi-Point Hydraulic Transmission Controlling Circuit on

Self-Propelled Forestry - Agricultural Machines

Dirong Trung Hieu', Biii Hai Trieu^

'Tru&ng Cao ddng nghe Ca khi nong nghiep - Tam Hap. Binh Xuyen, VTnh Phiic

^ Tru&ng Dgi hoc Nong nghiep Hd Noi - Trdu Quy, Gia Ldm, Hd Noi

Dja chi email tac gia lien lac: [email protected]

..... . .'(

" ' ' TOMTAT

Hien nay, cac lien hop may san xult o* Viet Nam con tdn tai mgt s6 nhu'O'c diem v§ khong gian,

kich thu'O'C, trgng lu'O'ng... nen chu'a phat huy du'O'c hieu qua tdi da. Nhim khic phuc cac nhu'O'c diem

tren, nghien cii'u nay tiln hanh phan tich va xay du>ng mach dilu khiin truyin dong thuy lire da diim

d l lam CO so' cho viec nghien ciru, thilt k l cac he thdng mach dilu khiin va truyin dgng thuy lire da

diim tren cac may nong lam nghiep tir hanh ap dung vao thirc te trong lirong lai.

TU" khoa: Mach dilu khien, lien ho'p may, truyin dong thuy lire.

SUMMARY

Multihead machines have been invented and applied in Vietnam. However, those machines often

use mechanical transmission system and only a few of them use one-point hydraulic transmission

system. Mechanical transmission has some drawbacks of space, size, weight, etc., leading to the

inefficiency of those machines. As a result, the practical demands have required us to research,

analyze and make multi-point hydraulic transmission controlling circuit. This research will be the

foundation for the next research and invention of controlling circuits and multi-point hydraulic

transmission of self-operated machines that can be practically applied in agriculture and forest

sectors in the future.

Key words: Controlling circuit, multihead machines, hydraulic transmission.

1. DATVARD E u u v

thu hoach...

Hien nay, viee thiet ke va phat trien eac Tren da sd' cae mlu may da dUde cdng

loai may philc hdp tu hanh dang dien ra het bd': Cae may lam da't, may thu hoach... viec

siie sdi ddng trong linh viic cd khi hoa ndng truyen ddng trich edng suat duge thiie hien

lam nghiep d nUde ta. Xu hUdng thiet ke ehu bang cd hgc nhU truyen ddng xich, truyen

ye'u la bd' tri cac bd phan lam viee, dan ddng ddng dai, truyen ddng eac dang hoac truyen

cho cac bd phan lam viee ehii ddng tren mdt ddng banh rang... NhUde diem eua truyen

may keo van nang ed nhd hoac la thiet ke' eae dgng ed hge la viec thay ddi ty sd truyen vd

may phiic hdp chuyen biet cho eac cdng viee ca'p chi cd the thiic hien trong khoang gidi

ndng lam nghiep nhU gieo trdng, cham sdc va han va yeu clu mdt khong gian lap dat cd'

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