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纹杆螺栓是联结纹杆与滚筒辐盘的紧固件。其作用是使纹杆与辐盘不产生相对运动,并将辐盘上的力传给纹杆,进行旋转脱粒。可见,纹杆螺栓是力的传递工具。力的大小受喂入量的均匀程度和滚筒转速的制约,而滚筒转速是个变量,不是一个恒量,因此,纹杆螺栓传递的力是冲击力而不是均匀力。一、纹杆螺栓折断时的几种现象及其原因分析 1.螺栓在没有松动又无磨损的情况下折断,大部分是由于采用了不合格的代用螺栓(冷加工)和材质不符合要求的纹杆螺栓。 2.螺栓在超速超负荷情况下折断,是由于纹杆螺
Striped bolt is the link between the stripe and the drum spoke fasteners. Its role is to make the rod and the spoke does not produce relative movement, and the spoke of the force transmitted to the rod, the rotation threshing. Visible, rod bolt is a force transfer tool. The size of the force is controlled by the uniformity of the amount of feed and the speed of the drum, which is a variable, not a constant, so the force transmitted by the rod is an impact rather than a uniform force. First, the pattern rod bolt breakage of several phenomena and their causes 1. Bolt in the absence of loose and wear-free case of fracture, mostly due to the use of substandard substitute bolts (cold) and material does not meet the requirements of the pattern Rod bolt. 2. Bolt breakage in the case of speeding overload, due to pattern rod screw