'.
Phuong
phap
dnh
ch!;m
cOng Built
d¢ng
CO
truy~n
d¢ng
thang
may
til!n
hanh
theo
cac
bulic
sau
dAy
:
1.
nnh
IIjC
kea
d~t
len
puli
cap
kea
bu6ng
thang

g - gia
t6c
tr(;mg
truong,
[m/s2].
2.
Tlnh
m6men
tuong
ung
vai
lljc kea.
M
F.R
i.I[
,
[Nm]
nl!u F > 0
va
:
F.R .
M
~
-,-12
,
[Nm],
n@'uF<O.
Trang
dci
R -

bu6ng
thang
baa
g6m
:
thai
gian
bu6ng
thang
di chuyl!n
vai
t6c
dQ
6n
dinh,
thbi
gian
rna
may
va
hlim
may
va
t6ng
thai
gian
ron
l~i
(thai
gian

dAng
trj
va
tinh
chon
cOng
sullt
de)ng cd.
5.
XAy
dljng
bi~u
do
ph1,l
ali
chlnh
xae
cua
de)ng cd truyl'!n. de)ng co
tlnh
den
cae
qua
trinh
qua
de)
va
ti@'n
hanh
ki@'m

y~u
cAu
Cd
ban
d6i
vOi
M
truy~n
d¢ng
thang
may
la
ph!ll
dam
baa
cha
bu6ng
thang
chuyEfn
d¢ng
~m.
Bu6ng
thang
chuyEfn dOng
Elm
hay
khOng, ph\! thu¢C
vao
gia
t6c

va
de)
d~t
p[m/s
3
).
T6c
de)
di
chuygn
cua
bu6ng
thang
quy~t
dinh
nling
Built
cua
thang
may,
cd
y
nghta
quan
tI'Qng, nh:H
la
d6i
vai
cac
nha

binh
cua
bu6ng
thang
d{lt gAn bAng
t6c
d()
dtnh
muc.
Nhung
vi~c
tling
t6e
de)
l{li
dAn
d~n
tling
gia
thlinh
eua
thang
may.
Neu
tang
32
'.
t6c d¢
cua
thang

cd
th4!
tAng bAng
clch
giAm thOi
gian
rna
may
va
ham
may,
cd
nghla
IA
tAng gia t6c.
Nhung
khi
gia
t6c IlIn sll
gAy
ra
cAm
giac
khd
chju
cha
hAnh
khach
(nhu
chdng

hanh
khach,
d11QC
d11a
ra
trong
bAng
3-2.
Tham
s6
Tt'lc d¢
thang
may
(m/s)
Gia
t6c
cl,1c
d~
(m/s
2
)
Gia Me
dnh
toan
kung
binh
(m/s
2
)
I

2,5
2
1
Bang
3-2
l'
n
, I
3,5
2
1,5
Q~I~~~
______
~~~~=+~t_
J.
~Bf)i)l
·i.
, ,
L.,J
P
Hloh
3-4.
Cae dlldng cong
bit!u
dil'n
sl,l
ph1,l
tln.tOe
ella
quAng

t6c
dQ
tAng
cua
gia
Mc
khi
mc'.!
may
va
t6c d9
giam
cua
gia t6c
khi
ha.m
may.
Noi
mtit
eAch kM.c, do
Iii
da
d
2
v
d¢
~t
(~l.lo
ham
b~c

.
Bh~u
d6
lam
vi~c
t6i
uu
cUa
thang
may
USc
d9
trung
binh
va
t6c
dO
cao bi€u di€n
tr€ln
hlnh
3-4.
Bieu
d6
nay
co
th~
chia
ra
lam
5 giai

uu
hlnh
3-4
se
dl;it
dUQc
n~u
dung
M
truy~n
d()ng mtit
chi~u
(F-D).
Neu
dung
M
truyen
d()ng
xoay
chieu
vlii d(lng co kht"lng
d6ng
b(l
hai
cap
t6c
dQ,
bi~u
d6 chi
dl.lt

thang
cUa
thang
may
cAn
phai
dting
chinh
xac
so
voi
m~t
bang
cua
Uing cAn
dung
sau
khi
iln
nut
dung.
Neu
buang
thang
dung
khong
chinh
xac
se
gay

nAng suilt.
- D6i
v{Ji
thang
may
chb
hang,
gAy
kho khAn
trong
vi~
xep
va
Mc
da
hang.
Trang
mtit
s6
trubng
hQP
c6
th~
kht"lng
tht,!c
hi~n
dUQc
vi~
x~
vA

mong mu6n
sau
-
Hong
thi(~"t
bi
di~u
khi~n
- GAy
t6n
th!t
nling
lUQng
-
GAy
h9ng
hOc
clk
thi~t
hi
Cd
khi
- TAng
thbi
gian
tu
luc
ham
d~n
dung.

thea
cung
mQt
huang
di
chuy~n.
Cac
yeu
to
anh
huang
d~n
dung
chinh
xac
bu6ng
thang
bao
gam
:
momen
cua
co cllu
phanh,
mt"lmen
quan
dnh
cua
buang
thang,

chuy€n
d6i
tang
dip
l~nh
Mn h¢
th6ng
dieu
khi~n
d(lng
cd
d~
dung
buang
34
3_T009T_
-"
'.
thang.
Trang
quAng
thbi
,gian
6.t
(thbi
man
tac
dQng
cua
thi~t

IA
qua
trlnh
hAm
bu6ng
thang.
Trong
thbi
gian
nAy,
bu6ng
thang
di
dUQc
m¢t
quang
duong
S".
mv'
S"
=
0,
[m]
2(Fph
±
FJ
(3-8)
Trang
do
: m -

(3-8)
phl:l thuQc
va~
chh~u
tac
dvng
clla
h,tc
Fe:
Khi
bu6ng
thang
di
l@n
(+)
va
khi
bu6ng
thang
di
xu6ng
(-).
S"
cung
cd
the
vi~t
duO'i
df).ng
sau

Wo -
Mc
dQ
quay
cua
d¢ng
co
Iuc bAt dl1u
phanh,
[rad/s]
D -
dubng
klnh
puli
keo
cap,
[m]
-
ti
os6
truy~n.
Quling
dubng
bu6ng
thang
di
dUQc
tit
khi
cOng tAc

tllng
dQ.t
each
sAn
tbg
m(it khoAng
cach
nAo
dd
lAm
sao
cho
bu6ng
thang
nAm
if
gilla
hi~u
hal.
quAng dU'bng truo:t
khi
phanh
d4y
tAi
vA
khOng
taL
Sai
s6
16n

cua
hu6ng
thang
khi
phanh
(hlnh
3-5),
Bang
3 - 3
dUB
ra
cac
tham
86
cua
cac
M
truy~n
d(ing
voi
d¢
khOng
chinh
xac
khi
dung
As.
35
Bang 3 - 3
Ph/ilm

t6c
dtj
1 , 1
0,8
1,5 ± 120 + 150
DOng
00
KDB
rO
to 16ng
soc
hai
cllp tile
dO
1 , 4
0,5
1,5
±
10
+
15
DOng
00
KDB
re,
to 16ng
s6c
hai
cllp tile dl)
1 , 4

trung
gian. 1 , 100
2,5
2
± 5 +
10
'.
-
r-r
Mticdat
cam
bien
dung

~
I-linh
3-5.
Dung chinh xflc
w6ng
thang.
36
'.
§3.6. cAe
H~
TRUYEN
DONG
DI~N
DUNG TRONG
THANG
MAy

chfnh
xac
khi
dung
- Teie
dO
di
chuy~n
bu6ng
thang
-
Gia
t6c
IOn nhl1t
cho
phep
-
Ph~m
vi
di~u
chinh
t6c
de
H~
truy~n
dOng
dil)!n
xoay
chi~u
dung

d6ng
bl)
rotor
16ng
soc
thubng
dung
cho
thang
may
cho
hang
t6c
dO
ch$rn.
H~
truy~n
dOng d/)ng co khOng
d6ng
bl)
rotor
dAy
quan
thuang
dung
cho
cae
may
nAng
cO

chi~u
dung
d/)ng co
kh6ng
d6ng
~
nhi~u
dIp
t6c
d¢
thubng
dung
cho
cae
thang
may
ebb
khach
t6c
dl)
trung
blnh.
H~
truy~n
dl)ng mQt
chi~u
may
phat
-
d(>ng

dung
t6"i
± (5 + 10)
mm.
Nhu:~c
di~m
cua·
hi:!
nay
la
cOng sua:t
d~t
Ion
gap(3
+ 4)ll1n
so
v6i
M xoay.
chi~u,
phuc
tli\P
trong
v~n
hllnh
va.
stia
chua.
Nhung
nAm ga:n day,
do

cac
thang
may
cao
tdc
voi
tdc
d¢
t6i
5 m/s.
1.
H~
tMng
1\1
d(ing
kMng
eh~
thang
mily t6e
dQ
trung
binh
He
truy~n
d¢ng
di~n
dung
cho
thang
may

eAch
chuy@'n
too
d~
cua
dOng
CCI
xu6ng
t.6c
d(>
tha:p (v 0 = 2,5 rn!s)
truoc
kbi
bu6ng
thang
sAp
den
san
tling.
Hi)
nay
thubng
dung
ebo
cac
thang
may
chlJ kM.ch
trong
cAc

ngu6n
cung
clIp
cho
h~
bhng
cl1u
dao
CD
vll
apt6mat
Ap.
CuC)n
d§.y
stator
cua
dC)ng
cO
dUQc
niH vi'io
ngu6n
clip
qua
cae
tiirp
di~m
cua
cOng tAc
to
nAng N

q~
hai·
ctiu
chi
1 CC.
Cac
cua
tAng
dl1~C
trang
b~
khda
li~n
d¢ng
vl:li
cae
Mm
cu6i
lCT
;
SCT.
Then
cai
ngang
cua
li~n
d(>ng
vOi
cAc
hAm

nam
cha.m
NC
1
lu.c
37
1[[
'.
38
I
:=
YI
8A
R
220/HI'
~
!!r
++
fD
HilT

(/IT
J{IlT
HilT
f(IlT
tiC
( C
U[
_
DI

IUT
16T
T
I!Tr
N
, ,
~;v~.
_-,
~~tI~
__
~~==~;===~
______
~T
(
lIlob
3-6.
Sd
do
nguyen
Ii
ditn
'ella
lhang
roAy.
1[[
'.
bu6ng
thang
den
san

dung
ham
cu6i
HC
di,it
trong
buang
thang.
Tac
d~ng
l~n
tiep
diem
HC
hol)c bttng
nam
cha.m
dung
theo
tang
NC
2
ha/)c bttng clin
dong
- rna
cua
bing.
Cong
Mc
chuyen

may
dUQc
th1!C
hi(!n
tu'
hai
vj
trl
:
t~i
'cva
tAng
bang
nut
Mm
gQi
tang
IGT
+
5GT
va
trang
bu6ng
thang
bang
cac
nut
bAm dgn tAng
lOT
+ 5DT.

bu6ng
thang
dong,
CBT
kin
va
3D
kIn.
HAm
cu6i
IHC
va
2HC
lien
d(>ng
vaj
san
bu6ng
thang.
Ngu
trang
bu6ng
thang
co
ngl.1bi,
tiep
diem
cUa
chung
rna ra.

GT.
Trong
so
d6
co 5
den
baa
D}
+ Ds
Ia.p
a
tr~n
mc5i
eua
tang
va 1
den
chieu
sang
buang
thang
D
6
,
Khi co
ngl.1bi
trong
bu6ng, tiep
diem
2HC

sang
cho
bu6ng
thang.
Sd
d6
nguyl!n
Iy
trl!n
Mnh
3 - 6
130
so
d6
cua
thang
Hip
di,it
trang
nha
nam
t.1ng
va
cha
tru'bng
hQp
bu6ng
thang
dang
nam

hanh
khach,
2
tiep
diem
thubng.
dong
IHC
va
2
HC
rna
ra, An
nut
Mm
den
tang
4 DT,
rale
tang
RT4
co di(!n.
Cac
tiep
diem
cua
RT4
dong
ll;li
dip

ngu6n
I
chi~u
ca:p
cha
hai
nam
chAm NC
t
va
NC
z
'
Nam
chAm
NC
l
Be
dong
tigp
diem
I PK, cuOn
dAy
cOngtactd N co
_di(!n.
Cu(>n
da.y
stator
cua
d¢ng

Khi
nha
nut
Mm
4
DT,
cuQn
dAy
cUa cOngtocto N
dUQc
duy
trl
ngu6n
ci!:p
qua
hai
tiep
dit1m T
(thllbng
kIn)
vA.
N
(da
dong
l~i).
D6ng
thbi
cuOn
dAy
cua

dl)ng
vAa
cOng tAc
chuyen
ddi
tang
4 CDT,
lam
cho
rale
tling
RT4
va
cOngtActd t6c
dO
caa
ma:t di(!n. CuOn
dAy
cOngtdcta
t6c
dO
thtlp
T
cd
dililn
qua
tiep
diem
thllbng
ho

t\lC
di
ll!n
vai
t6c
d¢
tMp
hdn.
D6ng
thbi
cAt
ngu6n
ctlp
cha
ctlu
chlnh
luu
CL,
hai
nam
chAm NC
l
vA
NC
2
ma:t
di~n.
NC
2
mtlt

lam
39
'.
hAm
cu6i
HC
h~
ra.
CuQn
dAy
cOngtActo N mAt
di~n,
dQng
cO
truy~n
d¢ng
dung
l~i
vA
phanh
hAm
di~n
tu
NCH
s@J
hAm
dung
hu6ng
thang.
H~

nut
Mm
gQi
Mng
chI th\1c
hi~n
khi
2HC kin.
2.
H~
thOng tll
dOng
khong
eht
thang
m6y eao
tOe
D~
truy(!n dQng
thang
mliy
cd
t6c
dQ
di chuy(!n
bu6ng
thang
v
~
3 rn/s,

bing
co
tay
~t
CO"
khi
d1.1QC
thay
the
bAng cOng
tAc
chuy~n
d6i
tling
phi
ti~p
di~m.
Vi
vt'H
t6c
dQ
di
chuy~n
bu6ng
thang
lan,
cOng
tAc
chuy~n
d6i

ung
va
b¢
cam
bien
vi trf
dung
te
bAo
quang
di~n.
T~n
hlnh
3-7a
giOi
thi~u
cAu
t~o
vil
d~c
tuyen
clla
cOng
tAc
chuy~n
d6i
bing
dung
bet
cam

qua
cuQn
dAy
kha
Ian. Khi
thanh
sAt
d¢ng
1 lilm
kin
m~ch
til:,
tu
thOng
sinh
ra
trong
m~ch
tu
tAng, lilm tAng
di~n
cam
L
cua
cuQn
dAy
vil
dong
di
qua

b¢
cAm
bi~n
mQt
role
ta
se
d1.1Qc
mOt
ph~n
to:
phi
ti~p
d.i~m
d~
dung
trong
M
th6ng
di~u khi~n.
Tuy
.thuQc
van
m\1c
dich
su
d\1ng,
co
th~
dung

,
•
D
Q,S
1
f
oj
40
L
,
~
2
J
u
mDh
3-7. C;\m biln
VI
lri
ki.!u
dm
ung.
/.1-
Cdu
telO

b-
S41
phil
tlauDe
L = f

nguy@n
ly
cua
cam
bi~n
cAm
dng
t~n
hlnb
3-8.
C*~
__
~~~_~_~_~.
___
_
ung
CB.
D~
nAng
caa
dQ
tin
~y,
song
song
vlti
cUQn
dAy
cua
bl)

huang.
Khi
m~ch
tu
ella
cam
bi@'n
het,
dong
di
qua
, cuOn
dAy
cua
role
RTr
du
Um
lAm
cho
no
tac
d/)ng.
Khi
ml;lch til:
kin,
dbng
dili\n
di
qua

Mnh
3 9a gitJi
thi~u
mf(lch
l~c
ciR
M
truy~n
dQng m/)t
chi~u
CBQ
bii!n
ddi
thyristor
- d/)ng
eCl)
cho
thang
mAy
caa
t6c
vCii
v = 2 m/e
va
trvng
tlli Q = 1000
kG.
Phttn
!lng
cua

+-
6T2
(b¢ ngt1Qc):
Hai
hI?
nay
df1u
song
song
ngt1Qc vbi
nhau.
BAa
vi)
quA
ap
cho
m6i
thyristor
dUng
m~ch
R-C.
Bao
vi)
ngAn
m~h
ba.ng
du
chI tAc
dl)ng
nhanh

hai
du
chinh
lUu
IBTh
va
2BTh
bl\ng
hai
khdi
di~u
khi(!'n
KDKN
va
KDKH.
Trong
m6i
kh6i
di~u
khi~n
bao
gdm
cac
khAu :
khau
d6ng
pha,
khau
tl,lO
di(\n

duge
Illy
ra
tU'd4u
ra
cua
khAu
h~n
ch@'
gia
tde
HCGT,
dl) Ibn
vA
e'l,te
dnh
cua
dii)n
ap
dj)t
do
khAu
di~u
hanh
DH
quy@'t
d!nh.
Di(\n
Ap
ra

chlnh
tde
dQ
Rill'
Tin
hii)u
dliu
van
cua
b¢
di~u
ehinh
tde
dl)
Rill
la
t6ng
dl;\i
86
hai
tin
hi~u
:
tin
hi~u
chu
d~o
(dii)n
ap
ra

(ham
d
1(\
P).
Tln
hj~u
ra
cua
Rill
Ia
tIn
hi~u
d4u
vao
RJN
(khi
thang
mAy di
l~n)
vA
RJH
(khi
thang
mAy
di
xu6ng).
CA
hai
khAu RJN
va.

41