After you style many conveyor systems employing little conveyor chains, the following basic problems has to be content.
a. Chain tension: The real tensile power in operation need to be significantly lower than the specified power of your chain.
b. Strength of loaded components of chain: The actual loads applied to attachments, this kind of as rollers of base chain, major rollers, side rollers, and so on. in operation need to be significantly smaller sized compared to the strength of those elements.
c. Wear existence of chain: Lubrication problems to make sure the wear lifestyle of chain needs to be fulfilled.
d. Sag adjustment of chain: The sag from the chain should be kept optimum by stress adjusters, take-up units, guides, and so on.
e. Many others: Suitable measures are taken to prevent rail dress in, machine vibration along with other difficulties.
The next complement the above.
Calculation of Chain Stress
On the whole, initially, tentatively decide the chain dimension to be utilised referring to “Tentative determination of chain size”. Then, obtain “Theoretical chain stress (T)” (P213) for the tentatively determined chain, and multiply the value by “Speed coefficient (K)”, to acquire “Substantial chain stress (Ta)”. For safety, the substantial chain stress should be reduce compared to the “maximum allowable tension” stated while in the table of dimensions of respective chains. Consequently, the affliction below should be happy.
Security affliction of chain tension
Considerable chain tension (Ta) ＝Theoretical chain stress (T) ×Speed coefficient (K)
Substantial chain tension (Ta) ＜Maximum allowable stress
If this ailment will not be happy, select a larger chain by one size and re-calculate.
Tentative determination of chain size
qDetermine the mass (fat) per unit length of components this kind of as chain and attachment ωc (kg/m or kgf/m) assuming that it is ten % from the mass (excess weight) of the conveyed object ω1 (kg/m or kgf/m).
wIn reference on the calculation formulas on, obtain “Theoretical chain stress (T)” (kN or kgf) and “Speed coefficient (K)”, and calculate “Substantial chain tension (Ta)” (kN or kgf).
eIn reference to the table of dimensions of chains,determine the minimum chain, whose “maximum allowable tension” is higher than the “Substantial chain stress (Ta)”, and regard it as “tentatively determined chain”.
Value of speed coefficient (K)
The velocity coefficient (K) expresses the severity of operation situation in accordance to your traveling speed of chain because the situation gets severer as the traveling pace of chain gets to be greater.
Multiply “Theoretical chain tension (T)” by “Speed coefficient (K)” to get “Substantial chain tension (Ta)”.