Chapter 8 1
K THU T NÂNGV N CHUY N
CHƯƠNG 8
CƠ C U QUAY
(slewing mechanisms)
Chapter 8 2
1. KHÁI NI M
The slewing mechanism serve the purpose of
imparting rotary motion to metal structure of
crane integrally with the hook load.
It differs materially from the rest of crane
mechanisms consider above in that involved
in the motion are gyrating masses alone, non
of the rectilinearly displacing ones
Chapter 8 3
2. PHÂN LO I
a. C t quayb. C t c đ nh c. Vòng t a quay
Chapter 8 4
PHÂN LO I (tt)
Chapter 8 5
3. SƠ Đ C Ơ C U QUAY
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TR M D N Đ NG Đ T TRÊN
PH N C Đ NH
Đ ng c ơ.
Phanh
Kh p n i
H p gi m t c
Bánh răng nh .
Bánh răng l n.