Một số kết quả nghiên cứu cải tiến máy cấy lúa tự hành kiểu trải đầy từ 2 khoảng cách khóm cấy sang

KHOA HOC - CONG NGHE

MOT SO KET OOA NGHIEN Cl)U CAI TIEN MAY CAY LUA TIT HANH KIEU TRAI DAY

Tlirz KHOANG CACH KHOM CAY SANG 4 KHOANG CACH KHOM

Nguyen Due Bdn ', Nguyen Xudn Thiet'

TOM TAT

Bdi bdo frinh bay kit qud nghien ciru dnh hirdng cua cdc thong so hinh hoc cua cdc khdu frong ca cdu

cdy. dnh hirang cita cdc thdng so dgng hoc cda may cdy nhu van loc lien va loc do quay lay cdy tai chdt hrgng

cdy; nghien ciru cdi tien mdy cay fir 2 che do khodng cdch khom sang 4 che do khodng cdch khom phit hgp vai

yeu cdu nong hgc trong canh tdc liia a Viet Nam hien nay.

Tu kitda: mdy cdy, mdy cdy lua. may ndng nghiep. ca gidi hoa nong nghiep.

SOME RESEARCH RESULTS OF INNOVATIVE SELF-PROPELLED RICE

TRANSPLANTER FROM 2 TO 4 DISTANCE MODES

Nguyen Dire Ban ', Nguyen Xuan Thiet'

SUMMARY

This article presents research results about the influence of the geometrical parameters of mechanisms of

planter-hand, the influence of the kinetic parameters of the self propelled nee transplanter as the moving

velocity of machine and rotation speed of planter-hand to qualityof transplants; innovative research

transplanters from 2 to 4 distance mode consistent with agronomic requirements office cultivation in Vietnam

today.

Keywords: transplanter, rice transplanter, self propelled rice transplanter,agricultural machinery,

agricultural mechanization.

I. DAT VAN DE

Trong nhO-ng nam gdn day, co gidi hda ndng

nghiep dupe Dang va Nha nude ta dac biet quan

tam. Viec dira may cdy vao san xuat da va dang

thirc hien tren nhieu tinh thanh phd trong ca nude

vdi nhieu chiing lo^i va mau ma da dang, tat ca cac

loai may cay lua hien nay deu hoat ddng theo

nguyen ly trai day. Cac mlu may chii y6u duoc nhap

khau tir nirdc ngoai nhu Trung Qudc, Nhat Ban.

Do sir thay ddi ve dieu kien khi hau, di^u kien

canh tac khi ap dung may nhap khau cimg voi sir

thay ddi manh me ve gidng liia trong nhieu nam trd

iai day da dat ra yeu cau cai tien cac mdu may hien

cd va cac mau may nhap khau. Trong cac nghien

ciJu tnrdc day da giai quyet diroc nhieu npi dung

quan trpng nhu thu hep khoang each hang, cai tien

bp cdn truot giam qua tai tay cay, tinh toan banh xe

chii dpng, md phdng quy dao cua tay cay \a dieu

chinh so lupng cay ma tren khdm.

Trong qua trinh phat trien cita nen ndng nghiep

nude ta cd nhieu loai gidng lua mdi duac dua vao

san xudt. cac gidng lua co nhieu mat dp cay khac

' KS. Civ TNHH may nong nghiep va khuyen nong HN.

•TS. Trudng Dai hpc nong nghi?p Ha Npi.

nhau tiiy thudc vao khi hau va dieu kien thd nhirang

ctia tirng viing. Nhung may cay c6 khoang each

hang phii hgp nhung it che dp khoang each khdm,

chua dap irng yen cau dd. Chinh vi vay can nghien

ciru, phan tich danh gia che dp lam viec ctia may de

cd nhieu che dp cay.

Kel qua cita nghien ciju la ca sd de thiet ke, che

tao, cai tren loai may cay lua tir hanh kieu trai day

tir 2 che dp khoang each khdm sang 4 che dp

khoang each khdm phii hop vdi yeu cau ndng hpc

trong canh tac liia d Viet Nam.

II. VATUEUVAPHirONGPHAPNGHIENCLL

2.1. Vat lieu, thiet bi nghien ciru

a) Rugng cay: Chieu dai rupng tir 120 - 150 in.

dat thil nhe, lam dat cay cd dp sau biin: ttr 10 - 12 cm,

dp nhuyen dat tir 7-12.

b) Ma cay: Ma gieo nen cirng bang bun. gieo

thil cdng. mat dp gieo 0,33kg thdc khd/m". chieu

day biin 2 cm. chieu cao cay ma tir 13 - 17 cm, dp

am cua dat tham ma 75%.

c) Thiet bi do va thir nghiem:

- May do tdc dp vdng quay TPl 505.

- Thudc va cac dung cu do chieu dai, lire ke, dp

am ke. thiet hi do dp nhuyen cua dat.

TAP CHi CONG NGHtEP NONG THON - SO 12 - 2014