Driving device of passenger conveyer

The invention provides a driving device of a passenger conveyer, wherein the output shaft of a decelerator is not easy to incline with respect to the rotating shaft of a driving sprocket and the abrasion or deterioration of the driving sprocket and the dropping of the driving chain are avoided.The driving device comprises a motor for generating the driving force of the passenger conveyer, a decelerator for increasing and outputting the driving force generated by the motor, a small sprocket connected with the output shaft of the decelerator, a machine bed fixed to the truss of the passenger conveyer for the embarkation of the motor and the decelerator and a vibration-proof member arranged between the machine bed and the truss.The small sprocket arranged on the side (W1) close to the width direction of the passenger conveyer drives the driving sprocket to rotate via the driving chain.The circulation movement of the conveyer is driven by the driving sprocket, so that the machine bed is arranged on the truss by t