In order to study the structure reliability of the chain drive pumping unit chain plate

the chain plate of the type of LCJ12-5-14 chain drive pumping unit as an example

the analysis is carried out by ANSYS software.On the basis of the reliability analysis function of ANSYS

the chain plate structure reliability influencing factors such as the chain plate size variables

material attribute variables and load variables are researched.The analysis result shows that the maximum influencing factor is the load of chain plate

follows by the chain plate thickness

the third is the diameter of chain plate hole

and the Poisson ratio and elastic modulus have less effect for the reliability.Reducing the load fluctuation of chain drive pumping unit

increasing the thickness of chain plate and the diameter of chain plate hole

the chain plate structure reliability can be improved.