Calculation of Chain Stress
Generally, in the beginning, tentatively figure out the chain dimension to get applied referring to “Tentative determination of chain size”. Then, receive “Theoretical chain stress (T)” (P213) to the tentatively established chain, and multiply the worth by “Speed coefficient (K)”, to obtain “Substantial chain stress (Ta)”. For security, the considerable chain stress needs to be reduced than the “maximum allowable tension” stated from the table of dimensions of respective chains. Consequently, the situation below need to be pleased.
Safety ailment of chain stress
Considerable chain tension (Ta) ＝Theoretical chain stress (T) ×Speed coefficient (K)
Considerable chain stress (Ta) ＜Maximum allowable stress
If this condition isn’t pleased, select a larger chain by one dimension and re-calculate.
Tentative determination of chain dimension
qDetermine the mass (weight) per unit length of parts this kind of as chain and attachment ωc (kg/m or kgf/m) assuming that it can be 10 % in the mass (weight) in the conveyed object ω1 (kg/m or kgf/m).
wIn reference for the calculation formulas on, acquire “Theoretical chain stress (T)” (kN or kgf) and “Speed coefficient (K)”, and determine “Substantial chain stress (Ta)” (kN or kgf).
eIn reference towards the table of dimensions of chains,determine the minimal chain, whose “maximum allowable tension” is higher compared to the “Substantial chain tension (Ta)”, and regard it as “tentatively made the decision chain”.
Value of speed coefficient (K)
The pace coefficient (K) expresses the severity of operation affliction in accordance towards the traveling speed of chain since the condition becomes severer since the traveling velocity of chain gets greater.
Multiply “Theoretical chain tension (T)” by “Speed coefficient (K)” to acquire “Substantial chain tension (Ta)”.
When you design many conveyor methods using modest conveyor chains, the following fundamental conditions has to be satisfied.
a. Chain tension: The actual tensile power in operation should be significantly decrease compared to the specified strength on the chain.
b. Strength of loaded parts of chain: The actual loads utilized to attachments, such as rollers of base chain, major rollers, side rollers, and so forth. in operation has to be significantly smaller than the strength of these parts.
c. Wear life of chain: Lubrication problems to be sure the dress in daily life of chain needs to be fulfilled.
d. Sag adjustment of chain: The sag from the chain need to be stored optimum by stress adjusters, take-up devices, guides, and so forth.
e. Other folks: Ideal measures are taken to prevent rail put on, machine vibration and various complications.
The next complement the above.