Views: 0 Author: Site Editor Publish Time: 2024-11-28 Origin: Site
Select the appropriate motor specification based on the following selection criteria:
①Starting torque judgment
The starting torque required for conveying
Calculation formula:
F=Wx μx 9.8/0.95n
T=F x D x S/2
The parameters in the above formula are explained as follows:
T = required starting torque | F = required tangential force | m=mass(kg) | g=gravitational acceleration 9.8m/s2 |
μ=friction coefficient | S=safety factor | n=Passive roller e.g. | D Roller diameter (unit: mm) |
Friction coefficient μ
Material bottom Electric roller appearance material | steel | plastic | wood | carton |
steel | 0.02 | 0.04 | 0.05 | 0.1 |
2mm PVC soft glue | 0.03 | 0.04 | 0.05 | 0.15 |
5mm PU | 0.02 | 0.04 | 0.05 | 0.15 |
5mm rubber coating | 0.02 | 0.04 | 0.06 | 0.15 |
②Determining the number of passive rollers
Number of passive rollers
③Speed
Select the code that meets the speed requirements based on the two conditions ① and ②. If there are multiple speed codes that meet the requirements, it is recommended to select the speed code with the largest starting torque.
Example:
Load parameters:
Load weight W=100kg Load material - carton roller parameters:
Roller tube material: Galvanized steel Conveying speed: 30m/min Safety factor: S=1.5 Number of passive rollers: n=10 Diameter: D=50mm
F=Wx u x9.8/0.95n=163.68N
T=FxDxS/2000=6.86N • m
The models of electric rollers running at a speed of 40m/min are as follows:
BL-AB-50-400-A35ADA (diameter 50mm, speed code A35,) Starting torque: 6.86N • m
The starting torque required by the electric roller is less than the nominal value (6.86<15.82), and the selected electric roller can drive 100 kg cartons.
