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X97y?‚79iS> →B
:
Cg
K
:
^
IX<7U%
g
K
ƒ?6SMqFKG7PIXPA
[ ]
^^

e
:c`7Pv%
→g
K
CJIJEF?LKGIP59XP%
B
:
Cg
K
:
^
CJIJETIJ^

<
.Z . 5

^
α
 
 ÷
 
= ^ . ^QI^Je . Q. 5
eIDQ^
^
°
 
 ÷
 
CQDTITDT
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7. Tổng hợp các thông số bộ truyền đai:
• *CEI]EF?_G
• 

CDeJF:LRG
• 9C9

C^ITDD
456 „9 #Xy
`7P v
MN?OA7Pn `


<
^QI^JeF"G
>`SVX B
X
QDTITDTF"G
GVHD: Hoàng Văn Bạo SVTH: Nuyễn Đình Dũng Lớp: CTM4


II. Tính toán thiết kế bộ truyền trong
Tính Toán Thiết Kế Bộ Truyền Bánh Răng Trụ Nghiêng
3456789:;<%
• *C*
$
CITe]F?_G
• C

CQQ]IQeF:LRG
• C
$
CQ]]DQID]F"KKG
• 9C9
AX
CQID
• 

CTJJJFNG
2.1. Chọn vật liệu bánh răng:
XPA
[ ]


=
GVHD: Hoàng Văn Bạo SVTH: Nuyễn Đình Dũng Lớp: CTM4
^

2.2. Xác định ứng suất cho phép :
^^|7y‡59ZRus:;96<R@R%
[ ]
[ ]
B

|B

.
1
/
1
B
.
J
BSK
†
B
†


|

:
•
X

3h5\A%
=

|

(
•
/
•
=
=

|B

.
1
/
1 =
3
H
S
d
F
S
%56P<;?O:Rus:;96%XPA
[ ]

D
^e
=X[7%.



J
SK 
IT IT^JJ QeJF G
F
HB MPa
σ
= = =
=XAy7%

J
SK^ ^
^ ]J ^TJ ]J QJF G
H
HB MPa
σ
= + = + =

J
SK^ ^
IT ITTJ Q^F G
F
HB MPa
σ
= = =
3
HL
K
d

ƒH[P7MN<Kn?Š:‡59ZRus<AX
U‹QEJŒK

Ce:;K
B
Ce
• "
‰
:;"
B‰ 
%569?‚P7b‡59Z\5k?Š:Rus:;‡
59Z96
=
( )
DDDJeQTITD
^I
^I
" QJ QJ ^JJ

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= = =
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( )
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^I
^I
" QJ QJ TJ


=%56S8?cRX<:fg9PIC
=%56:fg9PX<Rs
=%b56NS;K:[PAX
Œ
  
eJ   eJQQ]IQeTJJJ QeQJ^TJ
HE FE h
N N c n L= = = =
QQ]IQe
" " eJ  eJ TJJJ DQJETIe^
ˆ^ Bˆ^ ^
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= = = =
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" QeQJ^TJ " DDDJeQTITD
ˆ ‰
= > =
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ˆ
C"
‰
Œ

C
" DQJETIe^ " ]]ETEEIQTQ
ˆ^ ‰^
= > =
 Z"
ˆ^

E

( )
( )
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QJ
QeJ
J
†
SK
† • •    ^]I^]^ *P
:
X
|
 
. I

J
†
SK^
† • •    QDJIDJD *P
:
X
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^ ^
. I
^
J
†


= = =
= = =
= = =
( )
Q^
J
†
BK^
1 1   CTEI^ *P
/ |B
. B^
. I]E
B^
 
 ÷

 ÷

 ÷
 
= =
<:H:cAX9AXXXVŽ%
( )
† †
^]I^]Q QDJIDJD
 ^
† JDIJD *P
^ ^
   

 
 
 
 
 
 
= = =
= = =
= = =
2.3. Xác định sơ bộ khoảng cách trục:
( )
[ ]
Q
AP
•

9
^

†
Y



9
P
?
z
P +=
GVHD: Hoàng Văn Bạo SVTH: Nuyễn Đình Dũng Lớp: CTM4

CQID
=
ba
ψ
I
bd
ψ
3569X:;X
XPA
[ ]

D]
ee
:cAX9?476u‡I‹QEJPh
ba
ψ
CJIQ
Œ
bd
ψ
CJIE
ba
ψ
F9=GCJIEJIQFQID=GCJI]QE
=
Y
I
BY
ƒ56?r75>RWA6?479XhXV9X:;
X?O:‡59ZRus:;96


AP
 
 
= + = + =
hP
z
CDJFKKG
2.4. Xác định các thông số ăn khớp:
^<`9RR%
KCFJIJ JIJ^GP
z
CFJIJ JIJ^GDJCID
…
QITKK
GVHD: Hoàng Văn Bạo SVTH: Nuyễn Đình Dũng Lớp: CTM4
]

XPA
[ ]

DD
Te
hKj<V99{%KCQ
^^|7y56X:
h5\AYC
J
C’<5YCJID]J^De
PU
^P <5Y

QID
9 9
QITT QID

“9 JJt JJt JIEt t
9
−
−
= = = <
nPKo
^Q|7yUV[PX%
( )
( )
KF• • G
QF^E D]G
 ^
<5Y JIDeQ
^P ^DJ
z

<
Y PX<5 <5Y PX<5 JID]E EIeQE Y E QT”e””
+
+
= = =
⇒ = = = ⇒ =
^|7yU?cR%
• ^J
<
• • PX PX ^JI]J

^DJ

` ]]ITeD KK
z
9  QITT 


= = =
+ +
=`
z^
C^P
z
ƒ`
z
C^DJ3]]ITeDCQJ^IQFKKG
=:H6:f[PAX%
–` 
z

–]]ITeDQQ]IQe

: IQ]FKL5G
eJJJJ eJJJJ
= = =
XPA
[ ]

Je
Qe

|
C
h1
/
CŒ1
5
CIJTƒJIJeDESFKGCIJTƒJIJeDESFQGCIJJ
`
P^

≈
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