Hammer crusher can break material with size of 600-1800mm directly into size of 25mm or 25 below. Hammer crusher is suitable for crushing medium hardness material used in cement, chemical, electricity and metallurgy industries, such as limestone, furnace slag, coke and coal.
Rotor plays an important role in hammer crusher. Its performance directly influences the working efficiency of the crusher. Rotor consists of main shaft, hammer frame and hammer head. This article mainly talks about the structure sand purposes of these components.
① Main shaft The main shaft is the key component that supports the rotor. It receives the impact force and gravity force generates by rotor and the weight of hammer head respectively. Hence, the material used to make main shaft must have comparatively high strength and flexibility. The rotor is made of 35 manganese steel. The fracture surface of the main shaft is sound shape. The hammer frame is connected the shaft by flat key.
② Hammer frame Hammer frame is used for hanging hammer head, it does not break material. But in the crushing process, hammer frame will suffer ore impact and get friction and wear, so it also requires wear resistance. There are 12 pinholes on hammer frame, which are divided into two groups. The new changed hammer can hang up in the inside pinholes, when the hammer wears, move worn hammer to the outside pinholes, it still works. This method can not only prolong the service life of hammer, but also can improve crushing efficiency, reduce maintenance costs.
③ Hammer head Hammer head is the main working component of the hammer crusher. Weight, shape and material quality have great influence on the crusher’s performance. The kinetic energy is in direct proportion of the weight of the hammer head. We need to make sure the weight of the hammer head is suitable. Moreover, the material quality of the hammer head is also of great importance. We usually use high manganese steel to cast the hammer head and processed by heat processing to make sure its high wear-resistance capacity and long service life. Great attention should be paid to the wearing situation of the hammer head. Please make regular inspection and replace with new ones periodically.
④ Flywheel Flywheel is mainly used to store kinetic energy for crusher rotor in the process of running, and improve crushing efficiency and reduce the power consumption.