Войтюк Д.Г., Яцун С.С., Довжик М.Я. Сільськогосподарські машини: основи теорії та розрахунку
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, t ()
(6.32)
,
,
( )
), ,
),
. (
)
= 3
0,5 / ;
– 0,5 0,8 / ; – 0,2
0,3 / ; – 0,15 0,2 / .
V, S, h
S.
, ( Q –
),
Q / , S
2
,
/ ,
(6.33)
Q
3
/ ,
(6.34)
(6.32), (6.33) (6.34)
, ,
. ,
.
S .
(6.33) (6.34) ,
S = l
, (6.35)
, ,
S =
R
2
, (6.36)
(6.37)
l
– , , ;
R
– , ;
– , .
6.3.2.
.
Q
,
S'
3
/ ) ,
()
(6.38)
Q
= 50 1500
3
/ ;
S' – , S' = 1 = 10
4
2
.
Q
= 300
3
/ ,
= 30 .
,
(6.39)
– , ;
– , / ;
Q – ,
3
/ ;
S – , ,
2
.
()
(6.40)
– ,
= 0,83 0,95.
(
2
), Z
()
(6.41)
, ,
(6.42)
,
, ()
(6.43)
– , , ;
– , / .
, t
() ,
(6.44)
, =
.
, /
(6.45)
Z
, / ,
(6.46)
S = l
, , /
(6.47)
) l () S (
2
)
l = 60T
;
, (6.48)
l
– ,
– / .
, , (
2
/
/ )
(6.49)
, ,
W
( 6.42).
(
2
/ / )
(6.42) (6.49)
(6.50)
,
W
=W
t
= 60
l
t
K
(
2
),
W
=W
t
= 0,006
l
t
K
() (6.51)
t
– , ;
– ,
= 0,7 0,93
.
6.3.3.
, h = const
. (6.32) h = t. ,
.
,
, , ,
, , ,
.
,
, ,
.
(6.32)
, t.
(. 6.13, ).
, r ,
(6.52)
– .
t (6.32),
(6.53)
. 6.13. -
:
– ; – = f(r)
(6.53) h = const ,
.
– ,
(6.53) = r (
–
), (6.53) ,
(. 6.13, ). ,
- ,
.
6.3.4.
,
H d.
(6.54)
– ( = 0,5, = 25 · 10
-5
).
, ,
. , .
– () ; H / d = 900
1500 – , ; H / d = 1500 1700 –
,
; H / d = 1700 2200 – ,
; H / d = 2400 2600 – ,
.
, .
. 6.14.
(6.56) .
. H R
(. 6.14, ), ,
, d.
.
R,
(. 6.14, ), = 2R,
,
.
/
3–4 / , (. 6.14, ).
,
.
1.
?
2. ?
3. ?
4. ,
?
5. ( )
?
6. -
.
7. ?
8. ?
1. . . – .2:
. – .: , 1988. – 296 .
2. , :
/ . , . , .
, . / . . . – 2-., . . –
.: , 1977. – 568 .
3. ., . :
,
. – 2-., . . – .: , 1980. – 671 .
4. ., . . – .: ,
1994. – 446 .
5. . . . .
. 2-. – .: , 1968. – . 3. – 348 .
6. ., ., . . –
2-., . . – .: , 1984. – 320 .
7. ., ., . . –
.: , 1982. – 239 .
8. . . – .1. – . :
. – .: , 2001. – 444 .
9. . . .1. – 2:
. – .: , 2002. – 452 .
10. ., . . . – .:
,1984. – 200 .
11. . . –
.:, 1983. – 142 .
12. ., ., .
. – .: , 1996. – 240 .
13. ., ., .
. – .: , 1979. – 256 .
14. . . . – .:
, 1955. – 764 .
15.., ., . .
. – : , 1986. – 688 .
16. . / ., ., .
. / . . . – .: , 1980. – 351 .
17. : .
. / . , . , . , . . / . .
. – .: , . – 243 .
18. ., . . – .:
, 1983. – 604 .
19.. . – 2-., . . – .:
, 1984. – 320 .
20. . / .,
., . . / . . . – .: , 1981.
– 375.
21. / .,
., . . / . . . . – .: ,
1986. – 688.
22.., . . :
, , : / . .
. – . 1: . – .: , 2001. – 384 .
23.. : /
. . . – .: , 2005. – .
...........................................................................................................................
1...........................13
1.1. ..................................13
1.2. .........................................................................................26
1.3. ...............................................................................38
1.4. ....................................50
1.5. ...............................................60
1.6. ................................................73
1.7. .........................86
1.8. ...........................93
1.9. ........105
1.10. .....114
1.11.
.............................................................................................134
2.,
.......................................................................146
2.1. –
, ,
.......................................................................146
2.2. ...............................................165
2.3. .......................................................178
2.4. ...................................................................................185
2.5.
........................................................................................191
2.6.
.......................................................................................................................198
2.7.
.....................................................................................................................212
3. – .........220
3.1. ..........................................................220
3.2. .....................................228
3.3. ..........................................234
3.4. .......................251
3.5. ..................................................264
3.6. ................................................274
3.7. .......................................................281
3.8. ....................................290
3.9. ...............................302
4., ,
, ............................................312
4.1.
......................................................................................................................312
4.2. ...........................316
4.3. .............................. 333
4.4. .............................344
4.5.
.................................................:......................................................................354
5.
..............................................................363
5.1.
...................................................................................................................363
5.2 . ...................................,„„......... 377
5.3. ............................................382
5.4. ..................................391
5.5. ..................................................................401
5.6. ,
...... 406
5.7. ............... 412
6...........................423
6.1. ,
......................................................................................................................423
6.2. ........................................................................................434
6.3. .................................444
.........................................................................,...................................450