Abstract：By analyzing the velocity fluctuation of the pallet cars in the sintering machine, the varying tooth pitch design of the sprocket wheel was presented. According to the altenating changing wheelbases of the rolling wheels in the pallet cars, two kinds of tooth pitch were arranged alternately and the even number teeth were determined. By combining the meshing principle with the actual working condition be- tween the sprocket wheel and the pallet cars, the basic tooth profile curve was obtained. Considering the turning demand of the pallet cars, the practical subsection tooth profile curve was established and expressed by universal equation. The duplex gear tooth and the sprocket wheel body were designed, manu- factured and used in factory successfully, and the velocity fluctuation of the pallet cars was totally disap- peared.
2009, Vol. 30 
