Электропривод эскалатора ЛТ-4
19

s2=0-2)/0=(62.8 -21.502743)/62.8=0.6576

I2(2)=U1Ф/((RC2+(R’P+R1ДОБ) /s2)2+XK2)=220/((0.0382+(0.151+0.3827)/

0.6508)2+1.32)=143.481 A

t3=t1*3=0.797585*3=2.392753 c

3=t3*MДИН/J=2.392753*257.736/19.12=32.2541 с-1

s3=0-3)/0=(62.8 -32.2541)/62.8=0.4864

I2(3)=U1Ф/((RC2+(R’P+R1ДОБ)  /s3)2+XK2)=220/((0.0382+(0.151+0.3827)/0.4762)2+1.32)=129.2526 A

t4=t1*4=0.797585*4=3.1904 c

4=t4*MДИН/J=3.25432 *257.736/19.12=43.0055 с-1

s4=0-3)/0=(62.8 -43.0055)/62.8=0.31512

I2(4)=U1Ф/((RC2+(R’P+R1ДОБ)  /s4)2+XK2)=220/((0.0382+(0.151+0.3827)/0.302)2+1.32)=103.0033 A

t5=t1*5=0.797584*5=3.9879 c

5=t5*MДИН/J=4.0679 *257.736/19.12=53.7569 с-1

s5=0-3)/0=(62.8 -53.7569)/62.8=0.144

I2(5)=U1Ф/((RC2+(R’P+R1ДОБ)  /s5)2+XK2)=220/((0.0382+(0.151+0.3827)/0.127)2+1.32)=55.9937 A

2 ступень

=0*(1-s)=62.8*(1-0.104)=54.2592 с-1

M=2*MK*(1+ a*sКИ )/(s/sКИ+sКИ/s+2* a*sКИ)=

=2*2431.7*(1+0.09904*0.295028)/(0.104/0.295028+0.295028/0.104+2*0.09904*0.295028)= 1541.22 Нм

MДИН=M-MC=1541.22-1278.123=263.097 Нм

J=JВР+JП+JД= 4.32+7.4+7.4=19.12 кг*м2

=2СТУПЕНИ 1СТУПЕНИ=54.2592-53.7569=0.5023 с-1

t=J*/MДИН =19.12*0.5023/263.097=0.1826 c

t1= t/5=0.1826/5=0.03651 с

1=t1*MДИН/J+1СТУПЕНИ =0.03651*263.097/19.12+53.7569=54.2592 с-1