~2
72
.
и
— ——
—
— — 4
г,
16
9. Val tayanchlariga t a ’sir qiluvchi kuch
Г = 1,1 •
Ft
=1,1-13,75 = 1 4 4 9 //
10. Shkivning o ‘lchamlari
a) yetaklovchi va yetaklanuvchi shkivlarning tashqi diametrlari
A = o,oo8 m m 2/N, r = o.8 b o ‘lganda
,
_
0.2
AF- ,
on o AO
0,2-0,0008-1317.5-16
d _ . = d , - 2 t +
--------— = 80 - 2 ■
0,8 + —--------------------- ------- = 78.34
мм
в
63
,
л
0 .2 /iF r ,
_ n o
0,2-0.0008-1317,5-72
d r, = d , - 21 +
------- - = 360-2-0,8 + —------------------ -------= 358.16лш
в
63
b) shkivning eni
V = v+ m = 63+ 5= 68 mm.
v) shkivning tish o'rtasidan olingan qadam. H sh=5,0 b o ig a n d a :
D
/r(
d a l - h u )
3 .1 4 (7 8 .3 4 -5 )
PUI,
= ----- -------— = ---------------------= 4,э8лш
16
и
n { d , „ - h j
3 14(358,16-5)
r„r =
---------------- = -----------------------= 4.90лш
r ,
72
157
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