In allusion to existent questions of actual adhesive tape conveyance machine's roller, new structure of integral no - mandrel roller is brought up in this paper.
针对目前带式输送机托辊存在的问题，提出了整体旋压式无心轴托辊的新结构。
2
The worm photoelastic model was made in the way of steel mandrel surrounded with epoxy resin tooth, and the gear was made by the method of integral cast.