摘要
当锤头对矿石的打击力正好发生在锤头的碰撞中心(或称打击中心)时,就可以完全消除锤头销孔与销轴之间的碰撞反力,降低锤头磨损,提高破碎机效率。利用锤头销孔所受碰撞反力的计算公式,建立锤头的有限元模型,通过对锤面上不同点打击力加载,得出了锤面上各点的所受应力,依据结果优化锤头结构尺寸。
When the hitting force of hammer head on ore is just at the collision center of the hammer head（or hitting center）,the collision counterforce of hammer pin hole and shaft can be completely eliminated,thus reducing hammer wearing and enhancing crusher efficiency.Through the calculation formula of collision counterforce on hammer pin hole,the article establishes the finite model of hammer,and obtains the stress on each point of the hammer surface through loading hitting force on different points of the hammer surface.The hammer structure size is optimized according to the result.
