The failure mode of the hammerhead is mainly in the form of wear overrun and fracture. There are three reasons for the reasons: working conditions, materials, and poor installation of parts. The difference between industrial and mining conditions is the main influencing factor. The hammer hammer is important, the hammer rotary speed, the feed size, the wear resistance, the sharpness, the hardness, etc., and the wear failure mechanism of the hammer crusher has great differences. Therefore, for each type of hammer head of different specifications, specific wear failure analysis should be carried out according to the working conditions.
At the beginning of the work, the side of the hammer crusher hammer is crushed against the material, and the main force is mainly impact. After a certain degree of wear, the material is washed and worn on the working surface of the hammer. At the beginning of wear, the hammer head generates impact craters due to impacting materials, and there is residual crushed abrasive in the pit. This deformation causes work hardening on the surface of the hammer head to form a hardened layer, and the material has fatigue cracks caused by multiple impacts on the hardened layer.
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