Xác định năng suất sử dụng và điều kiện làm việc của máy xới đất

Tgp Chi Khoa Hpc Gido Due Ky Thugt (32/2015)

Trudng Dgi Hpc SuPhgm Ky Thugt TR Hd ChiMinh

XAC DINH NANG SUAT SU* DVNG

VA DIEU KIEN LAM VIEC CUA MAY X6l DAT

DETERMINATION OF EXPLOITABLE EFFICIENCY

AND WORKING CONDITIONS OF DIGGING MACHINE

Nguyin Danh Son

Trudng Dgi hoc Cong nghiep TP.HCM

NgSy tda soan nh$n bai 19/3/2015, ng^y phdn bi$n d^nh gi§ 28/3/2015. ngiiy chap nh$n dSng 06/4/2015

TOM TA T

Ndng sudt mdy Id mgt trong nhirng thong so quan trgng xdc lap nin cdc thong sS cua mdy

trong nhiing dieu kien su dung.

Bdi bdo dua ra cong thuc gidi tich di xdc dinh ndng sudt su dung trong dieu ki$n ldm viec

cua mdy x&i ddt. Cong thirc ndy dudi dgng hdm so cua cdc thong sd ky thudt su dung vd diiu

kiin ldm viic ciia mdy x&i. Cong thuc ly thuyet phdn dnh tinh chdt diin tiin ciia qud trinh x&i

ddt. No CO thi dugc si^ di^ng khi thuc hiin tinh todn xdc dinh hiiu qud cdc mdy x&i vd tdi iru

hoa chung.

Tie khoa: Mdy x&i ddt, ndng sudt.

ABSTRACT

Efficiency is one of important parameters of machine, which affirm parameters of machine

in working conditions.

The paper come up with analytic formula to determine exploitable efficiency and working

conditions of digging machine. Theoretical formula describes the character of digging progress.

She can be used in calculation of digging machine effect and in optimization.

Keywords: Digging machine, efficiency.

I. DAT VAN BE II. GIAI QUYET VAN DE

Nang sudt may la mpt h-ong nhiing thdng sd Trirdc hk ta khii quat l^i nhirng cong

quan frpng xac lap nen cac thdng sd cua may trinh nghien ciru ve viec xac dinh nSng suat

trong nhung didu kidn sii dung. Vi?e tdi uu c^ia miy x6i ddt;

hda cac thdng sd va dieu kien sir dung may , , , ., , , ,

- J J- J ' ' " j ' • Da CO nhihiR cone hum nghien cuu ve xac

xoi trong xay dung dan dung va xay dyng giao , f , , -.^ ;

. . . ~ I'-!• „- * "' i i " *!,•-* rv" dinh nang suat eua may xoi dat sau day: thong van tai la mpt van de cap thiet. Dieu & J •'

quan trpng la xac dinh khdi lugng tdi uu eiia Trong cdng trinh cua T.V.Alechxeeva [4]

may xoi vi luc keo eua may xdi duge xac dinh nang sudt sir dyng ciia may xdi dugc xac

bdi khdi lugng va h? sd bam ciia m^y xdi vdi dinh theo cdng thiic:

ddt.Khdi lugng tdi uu cua may xdi dugc xac D,k„N ^^^^^

lap h-dn co sd phan tich cac chi tieu hieu qua ~ ^^A ^^ ^-^ 1

lam viec la thdi gian mdt chu ky lam vi?c va ' L"*'-^.)^' ni^-s^VA

nang sudt cua may, cho nen viec xac dinh nang ^ ^^. g.chidu rdng xdi(m); h- chidu sau

suat may la van de quan trpng nhat. ^^^ j^„ g binh(m); L,^ - chiSu dai hanh hinh