00197089-02_AI_EA-Verl_X-Serie_S_de_en.pdf - 第77页

Appendix Calculating the Belt Tension Extension Input/Output Conveyor and Hand Guard Ein-/Ausga beband verlängerung und Eingreifschutz 77 4 4 A p p e n d ix Appendix 4.1 4 . 1 C a lc u la t in g t h e B e lt T e n s io n…

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Installation
Final Work: 3.6.1 Teaching the PCB Sensors (SW70x)
76 Extension Input/Output Conveyor and Hand Guard Ein-/
Appendix
Calculating the Belt Tension
Extension Input/Output Conveyor and Hand Guard Ein-/Ausgabebandverlängerung und Eingreifschutz 77
4
4 Appendix
Appendix
4.1
4.1 Calculating the Belt Tension
Calculating the Belt Tension
Example
Distance between the rollers: 235 mm
Calculation:
20000/235 = 85 (exactly 85.106…)
10 % of 85.106… = 8.5106…
Result:
Belt tension: 85 +/-9 Hz
NOTICE
For conveyor belt only
This calculation only applies to the conveyor belt.
Define the two deflection pulleys between which you
want to set the belt tension. If possible, avoid using
the idlers for this.
Measure the distance between the two deflection pul-
leys parallel to the conveyor belt. (see diagram)
CAUTION!
Please note that it is not always possible to just measure
the deflection pulleys from center to center.
Calculate the belt tension using the following formula:
20000 / Roller spacing [Hz]
The permissible tolerance is always 10 % of the calculat-
ed value.
Appendix
Calculating the Belt Tension
78 Extension Input/Output Conveyor and Hand Guard Ein-/