Calculation of Chain Stress
On the whole, at the outset, tentatively identify the chain size to get employed referring to “Tentative determination of chain size”. Then, receive “Theoretical chain stress (T)” (P213) for the tentatively determined chain, and multiply the worth by “Speed coefficient (K)”, to obtain “Substantial chain tension (Ta)”. For security, the substantial chain tension must be lower compared to the “maximum allowable tension” stated while in the table of dimensions of respective chains. Consequently, the condition beneath really should be satisfied.
Security condition of chain stress
Considerable chain tension (Ta) ＝Theoretical chain tension (T) ×Speed coefficient (K)
Substantial chain stress (Ta) ＜Maximum allowable tension
If this situation is just not satisfied, pick a bigger chain by a single dimension and re-calculate.
Tentative determination of chain dimension
qDetermine the mass (weight) per unit length of elements this kind of as chain and attachment ωc (kg/m or kgf/m) assuming that it can be ten percent in the mass (bodyweight) of the conveyed object ω1 (kg/m or kgf/m).
wIn reference for the calculation formulas on, receive “Theoretical chain stress (T)” (kN or kgf) and “Speed coefficient (K)”, and determine “Substantial chain tension (Ta)” (kN or kgf).
eIn reference towards the table of dimensions of chains,identify the minimum chain, whose “maximum allowable tension” is greater than the “Substantial chain stress (Ta)”, and regard it as “tentatively decided chain”.
Worth of velocity coefficient (K)
The velocity coefficient (K) expresses the severity of operation situation according towards the traveling speed of chain because the ailment gets severer because the traveling speed of chain becomes larger.
Multiply “Theoretical chain tension (T)” by “Speed coefficient (K)” to obtain “Substantial chain stress (Ta)”.
Any time you design different conveyor systems applying tiny conveyor chains, the next primary situations needs to be happy.
a. Chain tension: The actual tensile power in operation must be considerably lower compared to the specified power of your chain.
b. Strength of loaded elements of chain: The real loads utilized to attachments, this kind of as rollers of base chain, major rollers, side rollers, etc. in operation has to be appreciably smaller sized compared to the strength of these parts.
c. Wear daily life of chain: Lubrication situations to be sure the dress in life of chain needs to be fulfilled.
d. Sag adjustment of chain: The sag in the chain have to be stored optimum by stress adjusters, take-up units, guides, etc.
e. Other people: Proper measures are taken to prevent rail wear, machine vibration as well as other troubles.
The next complement the over.