ВОЛНИСТОСТЬ ПОВЕРХНОСТИ ПРИ ОБКАТЫВАНИИ

MOTROL. COMMISSION OF MOTORIZATION AND ENERGETICS IN AGRICULTURE – 2013, Vol.15, No. 2, 15-22
,
54020, .
, .
,9
Boris Butakov, Vitaliy Artyukh
Mykolayiv National Agrarian University
54020, Nikolaev, st. Paris Commune, 9
.
: R”z –
r –
s–
-
,
;
,
,
;
.
–
(
. 1).
,
.
(2)
:
,
,
,
,
.
.
1.
-
-
Fig.1. Type of burries at a rolling roller
,
[1 – 8].
,
0,78
-
;
,
.
0,28 - 0,35
,
,
.
-
i
0,
s
i
2 a0
i
s
.
7-
-
,
-
.
.
-
.
(0,18
.
2,5
)
0,16
-
.
-
(1)
,
,
.
,
-
.
.
-
[1]
-
.
(
),
. 2,
-
D /D
-
,
:
:
R"z
r
4r
2
2
s2
,
(2)
S
s
Dp
2
D
,
(3)
16
,
:s–
,
.
-
s
s
s.
(4)
:
s
2
sin
cos
D
D
2
0
2
D
D
0
sin
D . (5)
D
sin
sin D /D ,
,
,
,
0
(
s
. 2, ).
s
,
.
.
,
. 2.
:
-
–
,
s=f( ):
–
,
,
, –
,
, ,–
s'
-
D
D
sin
sin
D
D
0
0
. (6)
:
,
-
D
D
0
Fig. 2. Washboarding surface at a rolling-off:
and is a change of serve at to axial beating of
roller, is an involute of surface of billow, obkatannogo a roller, not having the axial beating, in
– an involute of surface of billow, obkatannogo
a roller with the osevim beating at the multiple
diameters of detail and roller, gramme, is an involute of surface of billow, obkatannogo a roller
at the not multiple diameters of detail and roller
n,
: n = 0; 1; 2; 3; …
:
n
D
D
0
.
(7)
-
(5),
:
max
smin
sin
(5)
-
D
.
D
(8)
,
s
.
.
,
,
,
(
. 2, ).
,
,
.
-
,
,
.
,
-
-
–
. 2, ).
.
-
-
-
.
:
–
(
. 2, )
-
17
,
,
-
,
.
.
,
-
,
.
-
.
,
,
,
-
,
.
,
.
-
,
.
(
. 3)
25’-30’
, 40’-1° 1° 30’ [1, 2, 9].
.1.
,
.
(
-
. 3, ).
.
-
/s
-
,
,
.
-
.
,
-
D
.
GHI
,
EFG
.
20’-30’
D
.
[10 – 15].
,
,
,
-
/s.
.
. 3.
,
-
S: –
,
.
; –
Fig. 3. Chart of successive deformation of
surface of details at a rolling a roobraznym
roller with the longitudinal serve of S: and – at a
normal process; – the process of deformation
was not stabilized
. 3,
.
[1]
:
L
:
–
1,27
P
,
HB
, .
(9)
18
,
1
[1,
16 – 19]
Table 1. Geometrical sizes of inlet cavity at the beginning of rolling area [1, 16 – 19]
,
D,
D,
,
r,
S,
t,
-
-
5
20
5
50
34
54
16
5,5
54
5,5
3
84
114
50
131
115
50
180
300
105
196
235
235
475
105
10
12
10
270
500
105
10
15000
0,61
0,43
0,3
1,04
0,3
0,3
0,04
0,08
0,18
0,02
0,18
0,3
60000
0,5
0,7
0,5
0,45
0,5
0,4
6000
8400
59500
40 (200
)
12
12
11,2
9,3
9,5
12
10,8
10
11,5
20
22
18
22
22
18
100
-
“
”
,
-
.
-
,
. 4 [20].
230 (
80
,
,
40 < Rz <
– .
,
,
.
,
,
,
;
-
. 4.
-
.
-
Fig. 4 Device for rolling of details by a toroobraznim roller with stabilization of effort of
rolling
:
7
19
12, 13
4,
5
11.
-
8
6
7
-
.
6
9
,
10
. 5.
. 6.
:
;
-
–
–
;
z
–
;
–
. 5.
-
Fig. 5 General view of device for the rolling
of details by a toroobraznym roller with stabilizing of working effort of rolling
0,745
(
(f )
-
.
)
:
=j ×f ,
: j
.
–
, j
(10)
= 0,472
-
-
Fig. 6 onstituents of effort of rolling on a
detail:
is tangent effort of woobling of roller;
is nominal effort of screwing of roller to the
detail; z is effort of serve;
is loading from a
back grandmother in axial direction
:
,
=5
,
= 0,15 : 5 : 1,5.
:
,
:
-
z
;
z
(
)
.
,
,
< 0,03
,
.
:
=
60/38 = f
= 0,745 f ,
: 60 38
0,472
= 0,45,
60 / 38 =
(11)
-
f = 0,05 ÷ 0,1,
f = 0,003÷ 0,008,
-
.
.6
-
.7
.
,
-
-
,
;
,
,
.
,
-
.
-
.
,
20
,
.
.7.
Fig. 4 Oscillogram of constituents of effort of
rolling-off of R during setting of roller knot on
supports of sliding
. 8.
Sw
Fig. 8. Chart of computation of step of the Sw
wave at rolling by rollers
Sw
, R = 0,08 – 0,32
Rz = 80 - 160
,
D /D .
(
. 8).
,
,
.
-
Sw,
S
,
.
,
.
,
. 9
.
1 1
:
Sw = D S / (D N – D ),
: N = D /D + 1 (
D /D ).
,
, 20,
140
, D = 117
=
,D =
(12)
-
)
5 , S = 0.2
60
,
,
.
(
.
-
. 9. .)
Sw = 3,9
Sw,
-
,
(12).
Sw.
(
),
.
-
21
9.
20: –
Rz =100
–
– 0,16
;
(R = 0,08
-
); –
Fig. 9. Profilogrammy of surface of billow
from steel 20: and – to the rolling-off of Rz
=100 mk; á – after a rolling-off during setting of
roller knot on bearings of woobling (Ra = 0,08 –
0,16 mkm); 3 – after a rolling-off during setting
of roller knot on supports
,
(
5°)
-
.
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u201112463;
zajavl.
24.10.2011;
opubl.
10.07.2012, Bjul. 13.
WAVINESS OF SURFACE AT ROLLING-OFF OF BODIES OF ROTATION
ROLLERS
Summary. Formulated and reason appearance of waviness is experimentally grounded at
a rolling toroobraznymi rollers is oscillation of
effort of rolling from the presence of large
forces of sliding friction in the mechanism of
loading of roller.
Key words: rolling, waviness, flowage, force
of friction, roller knot, rollers