(. . 12.16).
, : Ft = 2940 ; Fr 1 = Fa2 = 1020 Fa 1 = = Fr 2= 322 .
f 1 = 73 1 = 120 .
( , F, 2),
z
:
z
: Ry 2 - Ry 1 + Fr = 505 1525 + 1020 = 0.
(9.9)
7208 = 0,38.
(. . 9.21). S 1 > S 2; Fa> 0; P l = S 1 = 1590 ; 2 = S 1 + Fa = 1590 + 322 = 1912 .
.
-
.
(9.3)
V = = = 1;
X = 0,4 Y= 1,565 (. . 9.18 7 )
2 =(0,4 × 1860+1,565 × 1912) = 3760 = 3,76 .
, . [ (9.1) ]
,
= 974 / .
.
.
. . .,
,
.
(. . 12.17).
Ft = 2940 ; Fr = 322 Fa = 1020 .
F = 3978 . F = F = F sing = 3978 × sin 45 2800 .
f 2 = 71 , 2 = 159 l 3= 100 .
( , Fa), 4 (. . 9.21).
.
xz:
yz ( d 2= mz 2 = 3,43×79 = 271 ):
:
7211, .
.
, . .
,
= 306 / .
. 7211 .
|
|
IX. (. 12.18)
; , , . IX; . VIII.
, . .
39 1,5 . (0,1¸0,15) d ; 0,15×40 = 6 .
. 12.18 ( I IV). , 12 .
, d = (0,08¸0,12) D, D : d = 0,12×80 10 .
= 6 (. I).
.
, , 0,5 1 , .
, , : = 10 , 2 = 20 .
f 2 2, (, - , a; . . 9.21).
Æ68 (. . 12.18, II), ; Æ60 , Æ55 , ; Æ60 Æ55 2 3 .
d = 10 (. . X).
l 1,5 2 = 1,5 × 23 = 35 ( 2 = 23 7211, . 350).