11 details that can effectively extend the service life of crusher hammer head:

　　1) According to the design model, the feeding size shall be properly controlled, and the material entering machine beyond the maximum design limit size is strictly prohibited.

　　2) Select suitable feeding equipment, such as plate feeder or vibration feeder, to ensure uniform and stable feeding, and avoid impact and invalid operation caused by uneven feeding.

　　3) Due to the quality error of hammer head casting, the hammer head should be turned over and turned on time according to the current condition in order to make the hammer head wear evenly and the rotor running balance.

　　4) When replacing a new hammer, it is better to weigh, according to the average mass, it is divided into several groups, each group of quality requirements are equal, otherwise, the rotor imbalance will cause vibration when starting.

　　5) Check the clearance between the hammer head and the screen strip, between the screen strip and the screen strip when stopping. Adjust if necessary and replace the screen strip regularly. Because the cost of hammerhead is higher than that of the sieve strip, the new one can use 4-5 more shifts than the old one.

　　6) The hammer frame of hammer crusher is made of cast steel, which has less contact with materials. However, when the metal or lining plate enters into the crusher to fall off, it will easily cause damage or bending of the middle hammer plate. At this time, it should be replaced in time, otherwise, the hammer head will be easily lost and vibration will be lost.

　　7) The side hammer plate of the hammer frame and the side plate of the shell are severely damaged by material impact. In order to extend the service life of the side plate, the wear-resistant layer can be overlaid on the peripheral surface of the side plate and the side near the side plate.

　　8) Due to the friction in operation, the shaft diameter at both ends of the main shaft is easy to wear. During installation, two shaft sleeves shall be added to the shaft diameter to protect the shaft diameter.

　　9) After bearing wear, repair and wither shall be carried out in time. After bearing wear, the bearing shell should be scraped according to the new size, and the thickness of the gasket should be adjusted to keep a reasonable clearance so as to form an effective lubricating oil film.

　　10) The power and speed of the rotor are not only directly related to the production capacity of the crusher, but also the impact hardening degree of the hammer head. To extend the service life of the hammer head of the crusher, the material of the hammer head should be distinguished. For the hammer head made of high manganese steel, it should be ensured that it has enough impact force, but for the high chromium small hammer, it happens to be the opposite, It is necessary to control it without excessive impact.

　　11) The accumulated material of crusher should be cleaned regularly. Because of the existence of the accumulated material, the hammer head of crusher will be severely damaged by friction and reduce the service life.

　　Therefore, in use, it is necessary to choose the appropriate crusher hammer head according to different crushing materials, and adopt different measures to reduce the grinding according to different influencing factors to prolong the service life of the hammer head.