娉典笌椋庢満锛堣鍚庝範棰樼瓟妗堬級
绗竴绔?/p>
1-1
鏈変竴绂诲績寮忔按娉碉紝鍏跺彾杞昂瀵稿涓嬶細
1
b
=35mm,
2
b
=19mm,
1
D
=178mm,
2
D
=381mm,
1
a
飦?/p>
=18
掳锛?/p>
2
a
飦?/p>
=20
掳銆傝娴佷綋寰勫悜娴佸叆鍙惰疆锛屽
n=1450r/min
锛岃瘯
鐢诲嚭鍑哄彛閫熷害涓夎褰紝
骞惰绠楃悊璁烘祦閲?/p>
,
V
T
q
鍜屽湪璇ユ祦閲忔椂鐨勬棤闄愬鍙剁墖鐨勭悊璁烘壃
绋?/p>
T
H
飩?/p>
銆?/p>
瑙?/p>
锛氱敱棰樼煡锛氭祦浣撳緞鍚戞祦鍏ュ彾杞?/p>
鈭?/p>
1
飦?/p>
=90
掳
鍒欙細
1
u
=
1
n
60
D
飦?/p>
=
3
178
10
1450
60
飦?/p>
飥?/p>
飩?/p>
飩?/p>
飩?/p>
=13.51
锛?/p>
m/s
锛?/p>
1
V
=
1
m
V
=
1
u
tg
1
a
飦?/p>
=13.51
飩?/p>
tg
18
掳
=4.39
锛?/p>
m/s
锛?/p>
鈭?/p>
1
V
q
=
飦?/p>
1
D
1
b
1
m
V
=
飦?/p>
飩?/p>
0.178
飩?/p>
4.39
飩?/p>
0.035=0.086
锛?/p>
3
m
/s
锛?/p>
鈭?/p>
2
m
V
=
1
2
2
V
q
D
b
飦?/p>
=
0.086
0.381
0.019
飦?/p>
飩?/p>
飩?/p>
=3.78
锛?/p>
m/s
锛?/p>
2
u
=
2
D
60
n
飦?/p>
=
3
381
10
1450
60
飦?/p>
飥?/p>
飩?/p>
飩?/p>
飩?/p>
=28.91
锛?/p>
m/s
锛?/p>
2
u
V
飩?/p>
=
2
u
-
2
m
V
ctg
2
a
飦?/p>
=28.91-3.78
飩?/p>
ctg20
掳
=18.52
锛?/p>
m/s
锛?/p>
T
H
飩?/p>
=
2
2
u
u
V
g
飩?/p>
=
28.91
18.52
9.8
飩?/p>
=54.63
锛?/p>
m
锛?/p>
1-2
鏈変竴绂诲績寮忔按娉碉紝鍏跺彾杞寰?/p>
2
D
=220mm,
杞�?/p>
n=2980r/min
锛屽彾鐗囧嚭鍙ｅ畨瑁?/p>
瑙?/p>
2
a
飦?/p>
=45
掳锛屽嚭鍙ｅ鐨勮酱闈㈤�熷害
2
m
v
=3.6m/s
銆傝娴佷綋寰勫悜娴佸叆鍙惰疆锛岃瘯鎸夋瘮渚嬬敾
鍑哄嚭鍙ｉ�熷害涓夎褰紝骞惰绠楁棤闄愬鍙剁墖鍙惰疆鐨勭悊璁烘壃绋?/p>
T
H
飩?/p>
锛屽張鑻ョ幆娴佺郴鏁?/p>
K=0.8
锛屾祦鍔ㄦ晥鐜?/p>
h
飦?/p>
=0.9
鏃讹紝娉电殑瀹為檯鎵▼
H
鏄灏戯紵
瑙?/p>
锛?/p>
2
u
=
2
D
60
n
飦?/p>
=
0.22
2980
60
飦?/p>
飩?/p>
飩?/p>
=34.3
锛?/p>
m/s
锛?/p>
鈭?/p>
2
m
V
=3.6 m/s
2
a
飦?/p>
=45
掳鈭?/p>
2
w
=
2
2
sin
m
a
v
飦?/p>
=5.09
锛?/p>
m/s
锛?/p>
鐢诲嚭鍑哄彛閫熷害涓夎褰?/p>