Anti-jamming idle wheel structure

The utility model discloses an idle wheel structure capable of preventing jamming. The problem that an idle wheel is jammed after being compressed is effectively solved. Bearings are in interference fit with the two sides in the idle wheel, shaft sleeves are sleeved with the bearings, steps are arranged at one ends of the shaft sleeves, and when the steps make contact with the bearings, the other ends of the shaft sleeves exceed the ends of the idle wheel. According to the utility model, the structure is simple and ingenious, and the pressure applied by the fastening nut is completely borne on the shaft sleeve, so that the bearing can rotate freely in the use process of the printer, and the jamming phenomenon is avoided. 一种防止卡顿惰轮结构，有效的解决了惰轮在压紧后出现卡顿的问题；其包括惰轮，惰轮内部两侧过盈配合有轴承，轴承内部套接有轴套，轴套一端设有台阶，台阶与轴承接触时轴套另一端超出惰轮端部；本实用新型结构简单巧妙，将紧固螺母施加的压力全部承载到轴套上，使得在打印机使用过程中轴承可以自由转动，不产生卡顿现象。