www2 geometrija cilindricnih evolv zupcanika
DESCRIPTION
masinski elementiTRANSCRIPT
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3.2. 1
3.1.
3.1.1. , . , (), (), , . : 1. (. 31.1,) 2. () (. 31.1,) 3. (. 31.1,) 4. (. 31.1,) 5. (. 31.1,) 6. (. 31.1,) 7. (. 31.2,) 8. (. 31.2,) 9. (. 31.2,) 10. (. 31.3,) 11. (. 31.3,) 12. (. 31.3,) 13. (. 31.3,) :
- (. 31.1),
- (. 31.2),
(. 31.3).
-
2 3.
, , . , , .
. 31.1. : ) , ) , )
, ) , )
.
-
3.2. 3
. 31.2.
) , ) , )
. 31.3. ; )
) , ) , ) .
, , , ( ). , . .
-
4 3.
3.1.2. . , (. 31.4) . - . . . (. 31.4), . . ( ) ( ). , , , . d p z :
= =O p z d (31.1) :
= =pd z m z
(31.2)
(31.2) m . , . 31-1 m SRPS .C1.015. . I . II . - . . . . , . , . , . . . , .
-
3.2. 5
. .
. 31.4. :
b - ; d - ; df - ; d - ; h - ; h - ; hf - ; s - ; e - ; p - ; - . . , . . , . (. 31.5)
1 1 2 2= =w wv r r
-
6 3.
. 31.5.
:
2 21 1
2 2 1 1
= = = =w ww w
d rnin d r
(31.3)
1, 2 - , n1, n2 - , dw1, dw2 (rw1, rw2) - () .
1 1 1w wd z p 2 2 2w wd z p pw1 = pw2 = pw,
21 2
2 1 1
= = =ww
dn zin d z
(31.4)
(31.4) m
2 2 2
1 1 1
= = =z m z diz m z d
(31.5)
:
22 2 1
1 1 1 2
= = = =ww
dz d nuz d d n
(31.6)
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3.2. 7
, i , u u 1. , u = i. u = 1/i i 1. . . . .
3.1.3. () . u=1/2 . . 12 C (. 31.6). , . . 31.6. . b1 1, b2 2. B tB nB. B . nB C w. B nB 1 1 1= TO T r 2 2 2= TO T r rB1 rB2 1 2. :
1 1 1=T Br r cos
2 2 2=T Br r cos B 1 vB1 = rB11, 2 vB2 = rB22, 1 2 1 2. :
1 1 1 1 1 1= =Bn B Bv v cos r cos
2 2 2 2 2 2= =Bn B Bv v cos r cos
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8 3.
. 31.6.
vBn1 vBn2 . vBn1 > vBn2 b1 1 b2 2, . vBn1 < vBn2 b1 b2, , 1 . vBn1 = vBn2 :
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3.2. 9
1 1 1 2 2 2=B Br cos r cos
1 2 2 2
2 1 1 1
= =B TB T
r cos rr cos r
11C 22C
22
1 1
= wTT w
rrr r
:
1 1 2 2= =w w Cr r v (31.7) (31.7) C , rw1 rw2 . (31.7) , . C . :
1 1 1 1 1 1 1 1 1 1
1 1 1 11 1
2 2 2 1 2 2 2 2 2 2
2 2 2 22
Bt B B
w w w w c ww w
Bt B B
w w w w c ww
v v sin r sin T B T C CB
CB CBr sin CB r sin v sinr r
v v sin r sin T B T C CB
CBr sin CB r sin v sinr
2w
CBr
:
1 21 2 1
1= = = 1Ckl Bt Bt Cw w w
v CBCB CBv v v vr r r u
(31.8)
(31.8) CB B vC, rw1 rw2. C 0CB , . . . . 31.6.
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10 3.
2 =wr , rw2 < 0, . :
1 2 2 11 2
1 1 2 2
= = ; = =kl t t kl t tt t t t
v v v v v vv v v v
(31.9)
. .
3.1.4. , . 31.7 (Reuleaux) .
. 31.7.
1 2O O C, 1 B1 tB nB. nB 1 B'1. 1 1
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3.2. 11
1B' C , B'1 C. B1 1, 1 1B' B C B. B B1 1 B2 2, C. 1 1B' C , , 2 1 2B' C B' C 2. B2 2 2. 1 1B' B CB B'2 B2 2.
. 31.8. B11
2B2
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12 3.
2, D2, 2 F2, 2. , B, C, D, F, . . . . . . . . . . 31.8 , 2, 1. . 1 B11 (. 31.8). B1 , 1 . 2 2B2. 1 2 2 B1 , B2 1 B2 . , , . (), (B11 2B2). . , .
3.1.5. , .
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3.2. 13
, . - . . .
. 31.9.
, . . , . (. 31.9), ( ).
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14 3.
3.2.
3.2.1.
3.2.1.1. 3.1.5. 1 1 1 - k1, 2 2 2 - k2 (. 32.1). k1 k2 . 1 2 . 1 2 , 1 2TT , 2 1 . 1 1 , . AE . C.
3.2.1.2. db1 db2 rb1 rb2 (. 32.1) k1 k2 k'1 k'2 . .
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3.2. 15
. 32.1. ;
, . hwP = 2m (. 32.2). hw = 2h0 (. 32.3). hP = hfP+haP (. 32.2) .
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16 3.
(. 32.2). :
. 32.2. DIN 867
.
p = m, m = p/.
S - S . sP = P = p/2.
P = 20, 2P = 40.
: hP = m hfP = m + cP hP = hP + hfP = 2m + cP
cP = (0,1....0,3)m ( 0,4m).
hwP = 2m.
( . 32.3.) 0 = cP /(1 - sin 0 ).
ISO DIN h0 0 P ( 32-1 32-2). .
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3.2. 17
.
.32.3. .32.2.
3.2.1.3. . (. 32.4) :
=PT BT
( ) =b i i b ir r tan
=i i itan (32.1) i (32.1) i inv i ( i). 32-3. . i. . 32.4 :
= =b bii i
r dcosr d
0 0 0=a a psin c
0 0= /(1 )a pc sin
. 32.4.
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18 3.
d :
= bdcosd
:
=bd d cos (32.2)
2 2= = = =i i b b i i iBT r r r tan r sin (32.3)
.
3.2.1.4. . , . , pb. pi (. 32.5) pb, p ( )
2 2= = = =b i ie b i ir r cosp p p cosz z
(32.4)
:
= bppcos
(32.5)
. 32.5.
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3.2. 19
3.2.1.5. . . , . . . . w. . 32.6. C r1 r2.
1 2=da r r (32.6) .
. 32.6. ; ) C
) C . 32.6. a. C ( ) rw1 rw2.
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20 3.
, w. , . 11C 22C . 32.6. :
1 2
1 2
=b b
r rr r
1 21 2
=w wb b
r rr r
2 22
1 1 1
= = =b wb w
r rr ir r r
(32.7)
(32.7) 1 2O O . (. 32.6,) :
1 2 1 21 2= = =b bw w
w w w
r r r cos r cosa r rcos cos cos
(32.8)
1 2=2 w
z z cosa mcos
(32.9)
(32.9) . . (32.7) (32.8) :
1 21= ; =
1 1w wir a r a
i i
(32.10)
3.2.1.6. P-P (. 32.7). , . p. S-S (. 32.7) . P-P S-S. . x m, xm.
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3.2. 21
(. 32.7,), (. 32.7,).
. 32.7.
(S-S - ; P-P - ) . , . . . , () z = , .
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22 3.
. , . . . (. 32.8) . .
. 32.8. ,
) , ) , )
3.2.1.7. P-P (. 32.9):
= 2 22 2ps x m tan m x tan
(32.11)
. . . (. 32.10):
= =2 2
ii
i
ssinv invr r
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3.2. 23
. 32.9.
:
. 32.10
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24 3.
=i i iss d inv invd
(32.12)
di = db i = 0 (32.12)
=b bss d invd
(32.13)
di
= =ii i idp s e
z
=i i ie p s (32.14)
di = d i = a (32.12)
=a a ass d inv invd
(32.15)
a . 32.4 : = /a b acos r r .
3.2.1.8. . . (. 32.11),
sw1 = w2 ; sw2 = w1
pw = sw1 + w1 = w2 + sw2 = sw1 + sw2 (32.16) (32.16) . (32.11) (32.12) i = w :
11 1 11
= 22
ww w
ds x tg z inv invz
22 2 22
= 22
ww w
ds x tg z inv invz
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3.2. 25
. 32.11.
1
1
= wwdp
z
(32.16)
1 2
1 2
= 2wx xinv tan invz z
(32.17)
(32.17) . x1 x2 :
(x1 = x2 = 0), V- (x1 + x2 = 0), V- (x1 + x2 0).
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26 3.
. 32.12. V- p ;
) ; )
. 32.13. V- ; ) ; )
3.2.1.9. V- , .
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3.2. 27
P (. 32.13,). ( ) (. 32.12). ( ) . . P (. 32.13,). . . :
1 2 1 2= =Pk m a a r r m x x a (32.18) k - . .
3.2.1.10. . (31.2) :
1 1 2 2= ; =d m z d m z (32.19) (32.2) :
1 1 2 2= =b bd d cos ; d d cos (32.20) 32.6 :
b w wr r cos r cos :
1 1 2 2= ; =w ww w
cos cosd d d dcos cos
(32.21)
. 32.13, : r1 = r1 + m(1 + x1); r2 = r2 + m(1 + x2)
(. 32.13,) :
1 1 1 2 2 21 1a ar r m x k m; r r m x k m km (32.18) :
1 2 2 2 1 12 2a ad a m m x d ; d a m m x d (32.22) c (. 32.13,):
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28 3.
1 2 2 1f a f aa r c r r c r
:
1 2 2 12 2 2 2a f a fd a d c; d a d c (32.23)
:
1 1 1 2 2 22 2 2 2f fP f fPd d mx h ; d d mx h (32.24)
d0 0 :
1 01 01 2 02 022 2f a f ad a d ; d a d (32.25)
h (. 31.2) h hf ,
h = h + hf hw h1 h2 , .:
1 21 2= = 2
a aw a a
d dh h h a
h (h = m), hf hf = (1,1 ...1,3)m. :
1 2 2 11 1 2 2= = = =2 2
a f a fw w
d d d dc h h a ; c h h a
(32.26)
3.2.1.11. . 2 1 (. 32.1). 1 ( 1), 1. 1 . 1 (. 32.14). , . , 1 2TT .
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3.2. 29
. 32.14.
. . . , , .
. 32.15.
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30 3.
(. 32.15). . . . 32.16 . TDC :
= =DC m x mTCsin sin
OTC TC
= =2
m zTC r sin sin
:
21 =2
m zm x sin (32.27)
22= = 1Gz z x sin
= 20 zG = 17,1(1 - x)
. 32.16.
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3.2. 31
x= 0 zG = 17,1. :
17= =17
G
G
z z zxz (32.28)
:
14=17
zx (32.29)
" ". ( ) " " . s 0,2m, , s 0,4m . - . 32.29.
3.2.1.12. AE . , p . D (. 32.17,). B. B D . B , . p, D . B D , . () (. 32.17,) B , D . () . B , D .
. 32.17.
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32 3.
. 32.14.
. 32.18. l A' E'
3.2.1.13.
, . l pw l > pw. :
= 1w
lp
l E'A' (. 32.18) :
=
' '
b w
E A lr r
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3.2. 33
, E'A' EA = g, (. 32.6,) :
= =wb w
r gl gr cos
(32.30)
(32.4)
e b w wp p p cos m cos :
= = = =w w w e
g g glp p cos p m cos
(32.31)
(32.31) g p. (g) (gf) 1 :
1 21 2= = =
fa
e e e e
gg g gp p p p
(32.32)
. 32.19 g = 1 1T E T C 2 2
1 1 1 1= =a a b b wg g r r r tan (32.33)
:
2
11 1
1
1= = 12
aa b w
b
dg g d tand
(32.34)
2
22 2
2
1= = 12
af b w
b
dg g d tand
(32.35)
(32.34) (32.35) (32.32) :
2 2
1 21
1 2
= 1 1 12
a aw
b b
d dz u u tand d
(32.36)
32.1.
-
34 3.
3.2.2.
3.2.2.1. , . . 31.9 32.1. .
. , . , , . . b (. 32.20). . , , . , () . . .
3.2.2.2. . 32.21
. 32.20.
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3.2. 35
. 32.21. :
) 1 ; ) 2
. . 1 (. 32.21,) , 2 (. 32.21,) -. 1 2, . . : - - - . (. 32.2). t. n. . . 32.21, :
-
36 3.
= = =n n nt t t
p m m cosp m m
(32.37)
mn mt . mn 31-1. (32.37)
=wn wwt
p cosp
(32.38)
. 32.22 . , , . :
= =n tCB ABtan ; tanBD BD
:
= =nt
tan CB costan AB
= nttantancos
32.39)
(32.39)
= wnwtw
tantancos
(32.40)
(. 32.20).
. 32.22.
-
3.2. 37
di,
, . pz, . . b, w. 32.23 :
= = = =i b wzi b w
d d ddptan tan tan tan
= = ; = =b b b bt wtw w
tan d tan dcos costan d tan d
= ; = =b tb t wwt wt
tan costan tan cos tan tancos cos
(32.41)
. . . . , . . . .
. 32.23.
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38 3.
. , (. 32.24). , , . , .
. 32.24. . . (. 32.24). . . . 32.25 . (. 32.25) =en et bp p cos :
1 2 1 22 2= =
n nn
en en et b et b
g g g gp p p cos p cos
(32.31) :
1 22 2 2= =n
b b bcos cos cos
(32.42)
-
3.2. 39
(32.42) .
. 32.25.
. 32.26.
, . b , . (. 32.25), .
-
40 3.
, . (. 32.26) :
= bg b tan
:
= = =t t n
g b tan b sinp m m
(32.43)
:
= (32.44)
. .
3.2.2.3. (N-N) , d (. 32.27). . , C.
:
= bbnb
ddcos cos
(32.45)
2=nb
ddcos
(32.46)
2 3=nb b
z zzcos cos cos
(32.47)
. 32.27.
-
3.2. 41
32.1. (: n- ; t- ; t n t= t = ; : - , - ; : - +, -, , - ; , z2 )
.
1 - p, hP, hfP, c JUS .C1.016
2 =d cost /coswt=mn(z1+z2)cos t /(2cos coswt)
2 d=(d1+d2)/2=mt (z1+z2)/2=mn (z1+z2)/(2cos )
3 tan t =t n /cos cos t =db /d tan n = t cos
n=P
4 cos wt=db/dw=mt (z1+z2) cos t /(2)=d cos t / inv wt = inv t + 2 (x1+x2) tan n /(z1+z2)
5 x1+x2 = (inv wt - inv t)(z1+z2)/(2tan n)
6 sin b = sin cos n ; tan b = tan cos t cos b = cos cos n /cos t = sin n / sin t
7 mt=mn /cos mn mn - JUS .C1.015 8 z zn=z/cos2bcos) z/cos3
9 d=z mt = z mn /cos dn=d/cos2
dn=
10 db=d cos t dbn=dn cos n
11
dw1 = 2z1 / (z1+z2)=2/(u+1)=d1 cos t /cos wt dw2=udw1
u=z2/z1
12 d1=2 - df2 2c=d1 + 2h1 d1 + 2mn(1+x1) d2=2 - df1 2c=d2 + 2h2 d2 + 2mn(1+x2)
; c=(0.1-0.3)mn , h-
13
df1=d1-2hf1=d1+2x1mn-2hfP df2=d2-2hf2=d2+2x2mn-2hfP
hf- hfP=kPmn
(kP=1.2;1.25;1.3;1.4..)
14 pt = mt = mn /cos pn= mn = pt cos
15 =
pt = pbt = pt cos t pn= pbn= pn cos n =
= pbt cos b
16 st= mt ( /2+2xtg n)+s sn= st cos s -
17
211 1 1
22
2 2 2
12
12
a b wt
a b wt
z d / d tan
zd / d tan
18 =1+2=
2 211 1 1 2 21 1 12 a b a b wtz d / d u d / d tan u
19 = b tan /pt= b sin /(mn )
20 g = +
-
42 3.
, . 32.1. ( 3.2.1.11), zn. 3.2.4.
3.2.2.4. :
. . ( ).
. b (. 32.24).
, . , . . .
( ) . .
. . .
zG ( 32.39) .
3.2.3. .
-
3.2. 43
z2 = . z2 - . z2, d2 a , . () (. 32.28). . , . :
, , .
, .
.
.
, . .
: .
.
.
.
, . . z2 ( 32.1). , . :
df2 = 20 - d0 (32.48) : 0 - ,
-
44 3.
d0 - .
. 32.28.
( ) . . . , ( 3.2.4).
3.2.4. 3.2.1.11. . , . . .
3.2.4.1. , . 32.29, .
1 5. 1,
-
3.2. 45
(32.49)
5. 0,2mn. (32.15). 1 , 5 .
. 32.29. . : 1 - ; 2 - ; 3,4 - ; 5 - .
3 4. . :
( 3) d db + 2mn ( 4) a bd d
( 3), ( 4).
2. 1 (. 32.14). P.
-
46 3.
. (. 32.14) (32.27) (. 32.16) :
2 2
0 = =2 2t n t
Na
d sin m z sinh x mcos
:
0 002 2
1= 2 = 2 a a n nNa nG
n t n t
h sin x mh x mz cos cosm sin m sin
(32.50)
, ( ) . ( 2) hN0 = mn :
2 2
= 1 = 12 2
t n tz sin z sinxcos
(32.51)
zn (32.47).
3.2.4.2. . . P rNf1(0) rNf2(0) ( "0" ). P . P , . (. 32.17,) , rNf1(2) rNf2(1). :
1 2 1 0Nf ( ) Nf ( )r r 2 1 2 0Nf ( ) Nf ( )r r (32.52)
(32.52) . P . h0 = 1,25m .
-
3.2. 47
. 32.30.
(32.52). . (. 32.30). rNf1(2):
2
2 2 21(2) 1 2 2=Nf b a b wtr r r r a sin (32.53)
P rNf1(0) :
2
2 01(0) 1 1= Na nNf b t
t
h x mr r r sinsin
(32.54)
:
2
2 2 21(0) 1 0 0 0 0=Nf b wt Na br r a sin r r (32.55)
(. 32.31).
-
48 3.
rNf2(1), :
2
2 2 22(1) 2 1 1=Nf b a b wtr r r r a sin (32.56)
P rNf2(0) :
2
2 2 22(0) 2 0 0 0 0=Nf b wt Na br r a sin r r (32.57)
. 32.31.
(32.53) (32.56), ( 3.2.3), rb2 . (32.52). , . . (.32.32). . .
-
3.2. 49
10 .
3.2.5.
, , . , . . , , . . JUS .C1.030...036 ISO 1328-1975. JUS ISO- . DIN 3960...70, ISO . . 12 1 , 12 . , , , , , DIN, 32-5...32-11.
. 32.32.
-
50 3.
3.2.5.1. ( , ), ( , ), ( , , ) . (s < e)
jt=e-s .
. 32.33. (t ) (n)
t n (. 32.33). :
n t nj j cos cos (32.58)
-
3.2. 51
, As Asn (. 32.34). t
1 22= a n sn sntA tan A A
jcos
(32.59)
(32.58). (snd) (ag), (sng) (ad). , . , .
. 32.34.
-
52 3.
:
m mm 0,8...1,75 2...3 3,25...5 6...10 12...25 t m 50...100 80...130 100...230 180...400 250...1000
3.2.5.2.
. (. 32.35) . s . . - . W (. 32.36,) sb (zw-1) :
1w e bW z p s (32.60)
. 32.36. () () .
(32.4) (32.13) (32.11) :
. 32.35.
-
3.2. 53
= 0.5 2wW m cos z z inv x m sin (32.61) :
= 0.5 2n n w t n nW m cos z z inv x m sin (32.62) x ( x ) z (zn) zw 32-4. (. 32.36,):
b > Wsinb (32.63) zw2
-
54 3.