【摘要】 通过对破碎机主轴轴侧拉力计算，分析了原非卸荷式结构中主轴支承轴承易损的原因，介绍了设计中采用的卸荷式结构，这种结构解决了主轴支承轴承易损的问题。文章还进一步介绍了联接螺钉受力分析及直径确定。更多还原

【Abstract】 The -uasen why the original main bearings which are non - unloaded in structure are easy to be worn is analysed by calculating the pulling force at the main shaft side of the crusher. The unloading structure which prevent the main bearing form damage has been introduced. This paper also introduces how the force on the joint screws is analysed and how the diameter of the joint screws is caIculated.更多还原