慢轮成形技术发展的机械学思考

The Mechanical Thinking of the Forming Technology of Slow Wheel

通过对比社会学调查和考古资料,推测古代慢轮成形技术的发展历程为泥条盘筑、初级慢轮到泥条拉坯、高级慢轮。运用机械学知识对慢轮进行机构运动分析,得出慢轮是一种省力费距离的杠杆;转动惯量与其质量和半径成正比,决定转动持久性;通过配重、车筒提高惯性、稳定性;滑动摩擦力大是其缺陷,影响转动持久性。慢轮是中国古代陶瓷成形技术史上最早的机械装置,其发展存在演变规律。

By comparing sociological investigation results with archaeological data, it can be speculated that ancient ceramic forming technology of slow wheel developed from coil building to on primary slow wheel to throwing on advanced slow wheel. The mechanical analysis of the slow wheel motion indicates that the slow wheel is a kind lever that saves labor but moves a long distance. The rotational inertia is in direct proportion to the mass and radius, and decides the persistence of rotation; inertia and stability can be improved by adding weight or wooden barrel; high sliding friction is a defect which affects the persistence of rotation. The slow wheel is the earliest mechanism ever used in Chinese history for ancient ceramic forming and it has evolved by its own law.