, , . 15 /; , 3035 /.
v=Pω1z1/(2π) (29.4)
P ; ω1 ( z1. , . z1 .
:
P ω1 z1 / (2π) = P ω2 z2 / (2π),
u = ω1/ω2 = z2 / z1 (29.5)
, . u ≤ 4.
. ̳ , . .
. . , 2/z. z . , 100120 120140 .
, .
. , (. . 29.3), , . . , , , .
, ,
,
1 , ; z1 .
̳ . ̳ , 120.
u ≤
min = 0,5 (del + de2) + (30...50) mm;
|
|
u >
amin = (de1 + de2) (9 + u)/20.
de1, de2, . = (30...50).
> 80.
W , z1 z 2:
. (29.6)
(29.6) 㳺 . W .
ϳ W
. (29.7)
, (0,002...0,004) .
W
.
. г F1 F2
Ft = F1- F2 = 2 Tl / d1,(29.8)
1 , d1.
F2 F0, H, , FV, H, 䳿 :
Fq = Kf a q g; FV = qv2 (29.9)
Kf , f ; f = 0,02, Kf = 6 (Kf = 4 40); Kf = 2 40; Kf = 1, ); , ; q 1 , / (. . 29.1); g , /2; v , /.
v ≤ 10 / Ft. F2 ≈ 0, a F1 ≈ Ft.
, ,
R = 1.15Ft.