By considering the contact between the teeth and utilizing the face to face contact model with contact element and coulomb friction model,the author have developed a computing method for plastic load of tooth-locked quick actuating pressure vessel based on finite element stress analysis and stress categorization.

We adopt the 2-grade deceleration straight-tooth gear box instead of the V belt with 2 worm wheel box equipments,which results in the produce cost decreased by 40%,the weight decreased by 1/3,the trouble rate declined,and operation and maintenance easier for the new model one.