Estirajes
por Desarrollos.
D batidor=
40,854.59 “/min
D regulador=
14,507.91 “/min
D
intermedio= 14,443.49 “/min
D limpiador=
19343.49 “/min
Total
Et= D
cilindro productor/ D cilindro alimentador
Et=
19,343.49”/min / 40,854.59”/min
Et=0.47
Parcial
E1-2=
14,507.91“/min / 40,854.59 “/min
E1-2= 0.35
E2-3=
14,443.49“/min / 14,507.91 “/min
E2-3= 0.99
E3-4=
19,343.49“/min / 14,443.49 “/min
E3-4= 1.33
Et= 0.35 x
0.99 x 1.33= 0.46
E1-3= 14,443.49“/min
/ 40,854.59 “/min
E1-3= 0.35
E3-4=
19,343.49“/min / 14,443.49 “/min
E3-4= 1.33
Et= 0.35 x
1.33= 0.46
E1-2=
14,507.91“/min / 40,854.59 “/min
E1-2= 0.35
E2-4=
19,343.49“/min / 14,507.91 “/min
E2-4= 1.33
Et= 0.35 x
1.33= 0.46
Estirajes
por relación de engranes.
Total
Et= π x ф
productor x n productor / π x ф
alimentador x n alimentador
Et=
(2.25”)(10)(25) / (5.5”)(12)(18)= 0.47
Parcial
1-2= (3.375”)(10)(25) / (5.5”)(12)(30)= 0.42
2-3=
(2.33”)(30) / (3.375”)(25)= 0.82
3-4=
(2.25”)(25) / (2.33”)(18)= 1.34
Et= 0.42 x 0.82 x 1.34= 0.46 PROBLEMA 2
Estiraje por
desarrollos
D n1=
24,798.94”/min
D n2=
175,659.20”/min
D n3=
226,032.06”/min
D n4=
266,394.93”/min
D n5=
284,914.33”/min
D n6=
162,502.64”/min
D n7=
216,059.98”/min
D n8=
186,143.96”/min
D n9= 452,433”/min
D n10=
116,709”/min
Total
Et=
116,709”/min / 24,798.94”/min= 4.7
Parcial
3-5=
284,914.33”/min / 226,032.06”/min= 1.26
5-9=
452,433”/min / 284,914.33”/min= 1.58
9-10=
116,709”/min / 452,433”/min= 0.25
Et= 9.11 x
1.26 x 1.58 x 0.25= 4.5
Estiraje por
relación de engranes.
Total
Et=(3.33”)(50)(25)(30)(14)(20)(12)(25)
/ (1.25”)(12)(32)(179(30)(169(15)(36)= 4.9
Parcial
3-5=
2.5”)(30) / (3.5”)(17)= 1.26
5-9=
(6.125”)(14)(20)(12)(25)= / (2.5”)(30)(16)(15)(18)= 1.58
9-10=
(3.16”)(18) / (6.125”)(36)= 0.25
Et= 9.11 x 1.26 x 1.58 x 0.25= 4.5
PROBLEMA 3.
Estirajes
por desarrollos.
D N1= 18,329.30”/min
D N2=56,990.45”/min
D N3=59,101.35”/min
D N4=109,759.39”/min
D N5=67,544.38”/min
D N6=650,427.31”/min
D N7=225,147.38”/min
D N8=445,592.27”/min
D N9=300,188.6”/min
D N10=1’084,014.39”/min
Total
Et= D
cilindro productor/ D cilindro alimentador
Et= 1’084,014.39”/min/
18,329.30”/min= 59.14
Parcial
1-2= 56,990.45”/min
/ 18,329.30”/min=
3.10
2-4= 109,759.39”/min
/ 56,990.45”/min= 1.92
4-7=
225,147.38”/min / 109,759.39”/min= 2.05
7-8= 445,592.27”/min
/ 225,147.38”/min= 1.97
8-9= 300,188.6”/min
/ 445,592.27”/min= 0.67
9-10=
1’084,014.39”/min / 300,188.6”/min= 3.61
Et= 3.10 x
1.92 x 2.05 x 1.97 x 0.67 x 3.61= 58.1
Estirajes
por relación de engranes.
Total
Et= π x ф
productor x n productor / π x ф
alimentador x n alimentador
Et=
(6.5”)(38)(80)(40)(40)(60) / (5.5”)(15)(20)(30)(18)(36)= 59.13
Parcial
1-2= (6.75”)(38)
/ (5.5”)(15)=
3.10
2-4=
3.25”)(80) / 6.75”)(20)= 1.92
4-7=
(1.125”)(40)(40)(60) / (3.25)(30)(18)(30)= 2.05
7-8= 2.375”9(30)
/ (1.125”)(32) = 1.97
8-9= (1.25”)(32)
/ 2.375”)(25)= 0.67
9-10= (6.5”)(25)
/ (1.25”)(36)= 3.61
Et= 3.10 x
1.92 x 2.05 x 1.97 x 0.67 x 3.61= 58.1
PROBLEMA 4.
Estiraje por Desarrollos.
n1=
((400)(18)(8)(18)) / ((6)(20)(17))= 508 rpm
D n1= π x 508 x
15= 23,983”/min
n2= ((400)(18)(8)(18)) / ((6)(20)(15))= 576 rpm
D n2= π x 576 x 12= 21,714”/min
n3= ((400)(18)(8)) / ((6)(20))= 480rpm
D n3= π x 480 x 10= 15,079”/min
n5= ((400)(18)(8)(18)(12)(15)) / ((6)(20)(17)(19)(17))= 283 rpm
D n5= π x 283 x 3= 2667”/min
n6= 400 rpm
Dn6= π x 400 x 7.5=
9424”/min
Total
Et= D
cilindro productor/ D cilindro alimentador
Et=
9424”/min / 23,983”/min= 0.39
Parcial
1-2= 21,714”/min
/ 23,983”/min= 0.9
2-3=
15,079”/min / 21,714”/min= 0.69
3-5=
2667”/min / 15,079”/min= 0.17
5-6=
9424”/min / 2667”/min= 3.5
Et= 0.9 x
0.69 x 0.17 x 3.5= 0.36
Estiraje
por relación de engranes.
Total
Et= π x ф
productor x n productor / π x ф
alimentador x n alimentador
Et=((7.5”)(17)(20)(6)
/ (15”)(18)(8)(18)= 0.39
Parcial.
1-2=
(12”)(17) / (15”)(15)= 0.90
2-3=
(10”)(15) / (12”)(18)= 0.69
3-5=
(3”)(18)(12)(15) / (10”)(17)(19)(17)= 0.17
5-6=
(7.5”)(17)(19)(17)(20)(6) / (3”)(15)(12)(18)(8)(18)= 3.5
Et= 0.9 x
0.69 x 0.17 x 3.5= 0.36
