A battery-powered stairs climbing loading car based on the chain abutment is designed. Through the fixed chain abutment members contact with stairs and at the same time along with the chain cycle movement

the function of climbing stairs is achieved.From the use requirement and economic factors into account

the transmission system adopts incorporation way of gear and chain

which makes the integral structure design more compact and transmission process smoothly to meet the transmission requirements.In order to ensure the reliability during the movement process

the force situation of the chain abutment during climbing process is analyzed.The design and calculation of chain transmission parameters and chain abutment are carried out

the stair-climbing test is also taken for the design of stairs climbing loading car

the results show that the overall structure is reasonable

the operation process is stable and can meet the design requirements.