带式输送机二级直齿圆柱齿轮减速器设计之传动装置的运动和动力参数的选择和计算

i = i总/ i联=18.30 双级圆柱齿轮减速器高速级的传动比为

i齿1 = 1.3i= 4.877 低速级的传动比

i齿2 = i/i齿1 = 8.30/4.877 =3.752 三、运动参数和动力参数计算 1.各轴转速计算

n0= nm =1440 r/min nⅠ= nm / i联 =1440 r/min

nⅡ= nⅠ / i齿1 = 1440/4.877=295.26 r/min nⅢ= nⅡ / i齿2 =295.26/3.752=78.69r/min 2.各轴输入功率 P0= Pd=3.193kw

PⅠ= Pdη4 = 3.193x0.99=3.163kw PⅡ= PⅠη2η3 =3.163x0.98x0.99=3.067kw

PⅢ= PⅡη2η3 =3.067x0.98x0.99=2.976kw 3.各轴输入转矩

T0 = 9550Pd/n0 =9550x3.193/1440=21.176N?m TⅠ = 9550PⅠ/nⅠ=9550x3.161/1440=20.964N?m TⅡ = 9550PⅡ/nⅡ = 9550x3.067/295.26=99.20N?m

TⅢ = 9550PⅢ/nⅢ = 9550x2.9767/78.69=361.174N?m

表1 传动装置各轴运动参数和动力参数表 项目 轴号 0轴 Ⅰ轴 3.193 3.161 Ⅱ轴 Ⅲ轴 3.067 2.9767

1440 1440 295.26 78.69 21.176 20.964 99.200 361.174 4.877 3.752 1 功率?kw? 转速转矩传动比 n?rmin? T?N?m?