' ' , . ' ; , .
³ ' (') . .
³ ' : ; ; . ' , .
. . 37.13 , ' . ' 1, 2, 3, 4 , .
ϳ 䳺 Fv n. , Fn > Fv , ( ). ω1 Fv, Fv > Fn ( ). ³ .
T , Ts :
TP = s = (Fv Fn) fzD/2, (16)
f ; z .
³ , 䳺 ( ω),
Fv = mω2r, (17)
; .
, , , ω0:
Fn = mω02r (18)
ϳ (17) (18) (16)
T = 0,5mrfzD (ω2 
) (19)
(19) D .
m = 2Tp/[Drfz (ω2 )]. (20)
(20) , Η; D, , ;
ω, ω0 , /; m , .
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( 㳺 ):
p = (Fv Fn)/A = mr (ω2 )/A ≤ [ρ], (21)
, 2; ρ , .
, , ω ω0, ( ω0 = (0,7...0,8)ω). , (20), (21).
0 < ω1 ≤ ω0 , ω0 < ω1 < ω , ω1 ≥ ω .
. , , . , , , .
' . , .
(. 37.14, ) 1, 2, 3 4, . dz , ' , . . . 37.14, , . ϳ 糭 . .
, 15, 20 ( Η ≈ 60 HRC ).
(. 37.14, ) N Fs. N , .
,
2Fs cos α/2 ≥ 2Ν sin α/2. (22)
, Fs = Nf, (22)
f ≥ tg α/2 α/2 ≤ arctg f. (23)
f . α 57.
(.14, ):
cos α = ( + d/2)/(D/2 d/2) = (2b + d)/(D d). (24)
(23) (24) d , b D.
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( z):
= Fs z D/2 = 0,5N D z f 0,5NDz tg α/2. (25)
(37.25) ,
tg α/2 ≈ α/2:
Ν = 4Tp/(Dzα). (26)
̳ . , (. 4.1):
σH = ZM √4Tp/(Dzdlpα) ≤ [σ]Η. (27)
(27) l . [σ]H = (1200... 1500) .
. .
, . , .
(. 37.15, ) , .
. α (α ≥ 40). (Tp > max) . 848 4400 Η.
(. 37.15, ) 䳿 . 䳺 , , . 1562177 848 4400 Η.
(. 37.15, ) . ֳ . 1562277 948 6,3400 Η.
max, , .
. .
. 37.16, . , . .
, , ' . z = 1, z = 2. .
max, () , τ:
τ3 = 8max /(Dzπd2) = τ;
max = Dzπd2 τ /8. (28)
max,
d = √8 max /(Dzπ τ). (29)
D , . τ σΒ τΒ ≈ 0,8σΒ.
, , ' .
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. . 37.16, . ' ( , ) .
(. 37.16, ) , .
Ͳ '
