TRUONG DH SLT PHAM K t THUAT TPHCM
KHOA CO KHi CHE TAO MAY
BO MON CO DIENTU*
DE THI CUOI KY HOC KY 1 NAM HOC 19-20
Mon: Cong nghe thuy lire va khi nen
Ma mon hoc: PNHY330529
B 8 so/M ade:01 Be thi co 6 trang.
Thai gian: 60 phut.
Duac phep sir duns tai lieu eiav fkhons duac su
duns laptop va dien thoai).
SV lam b&i true tiep tren de thi va n§p lai de
Chu ky giam thi 1 Chu ky giam thi 2
Diem vk chu ky
CB cham thi thu nhat CB cham thi thu hai Hq \h ten:..............................................................
Ma so SV:..............................................................
So TT:
....................
Phong thi:
............................
C§u 1; (5 di§m) Cho scr do hanh trinh birdc va ket n6i van - xy lanh nhir hinh b§n diroi.
Xy lanh A S2
SI — (>
-----
<7'
' ■ <
7- i7~— —it
Xy lanh B S4
S3
S t a r t /
h ■■ -
1 0
giay \
\—
-------
<>
Xy lanh C S6
S5
-----
1
*
-------
— *
7 '
4
Y1 IZ .
S1 S2 .
= F BI ^
2 k Y2 eS
S3 S4
^ ' c C
Y3 Y4 eI
S5 S6
5 I 3
Yeu cau: Thiet ke mach dieu khien DIEN - KHINEN, SV co the chon 01 trong 03 phircmg phap
thiet ke theo TANG hoac NHIP hoac KET HOP
• • • «
1
c
i
t
CSu 2 ( 5 diem) Cho so” do mach thuy lire nhtr hinh diroi
Chieu chuyen dpng cua xy lanh
Bang danh m yc th iet bj thu y lye
| Van Ipc (Filter)
••
.....
•
Opng c o th u y ly c (Hydraulic m o tor)
i Van kh oa /va n dong (S hut-off valve) Dpng c o dipn (Electric m otor)
r
.........
j
; Van tran (Pressure re lie f valve) [ Th ie t b j lam m 3t (cooler)
f
........
.
i Van can (C ou nter - balance valv e) Th ie t b( bao m ire dau (filling level indicator)
f
.....
'• Van ap suat di'eu khien tuan t y
i
.........
i (P re s s u re s e q u e n c e v a lv e ) Apke (Pressure gauge)
i*
..... .
j Van dieu ap (Pressure re gulato r)
.
.....
.
Liru lirp n g ke (F lo w m e ter)
i Van m pt chieu (Check valv e)
.
......
Nhipt ke (Th erm o m eter)
1 Van m pt chieu d ieu khien d iry c hiro’ng ch?n
........
(lo c k a b le p ilo te d n o n - re tu rn v alv e )
f
........
.
Cum berm (Hydraulic po wer pack)
i Van tac dpng khoa Ian
......... ( D e lo c k a b le p ilo te d d o u b le no n - re tu rn v a lv e )
.
..........
Berm dau (H ydraulic pump)
f i Van dipn t£r th u y ly c 4 /2 ( 4 /2 w a y e le c t ro -
.........
= h y d r a u lic a ll y o p e ra t e d d ire c t io n a l c o n tr o l v a lv e )
f.......
.
B on /b e chira dau (Tan k/R eservoir)
f ] Van d ip n tir th u y ly c 4 /3 ( 4 / 3 w a y e le c tr o -
.........
; hy d r a u lic ally o p e r a t e d d ir e c tio n a l c o n tro l v a lv e )
BInh trich chira th uy ly c /A c quy thuy lyc
(Hydraulic A ccum ulator)
t r r r r
a. Goi ten cac thiet bi thuy lire tir so 1 den 15 trong mach thuy lyc phia tren (ghi so thu tu cua thiet
bi ngay canh ten thiet bi trong Bang danh muc thiet bi thuy lire)? (l,5d)
b. Trinh bay cong dung cua thiet bi s6 11? (0,5d)
c. Tinh cong suat dong ca dien biet hieu suat bom 84,5%, ap suat bam 250 bar, bom banh rang
thuy luc co the tich bam 7.1 cm3/vong, dong ca dien quay 4000 vong/phut? (Id)
d. Tinh luc can thiet de xy lanh co the keo vat m = 2000 kg co lai theo phuong ngang tu vi tri dung
yen vai gia t6c = 5m/s2; g = 9,81 m/s2; he s6 ma sat tren mat phSng ngang p= 0,15; luc ma sat
trong xy lanh Fmst = 4500 N. (Id)
e. Tinh luu luang cap vao xy lanh khi xy lanh co lai biet van toe xy lanh di chuyen la 70mm/s,
duong kinh xy lanh 250 mm , duang kinh true piston 160 mm, hieu suat hoat dong cua van va
xy lanh la 90%? (Id)