As an important part of crusher equipment, jaw crusher has been widely used in mining, building materials, metallurgy and other industries to perform medium and fine crushing operations on various ores, rocks and other materials. In daily work, the lining of the jaw crusher is easy to wear, resulting in cracks, affecting normal production. Therefore, it is necessary to regularly inspect and maintain the lining of the jaw crusher to ensure the normal operation of the crusher and extend its service life. The following is a detailed introduction to the inspection and maintenance of the lining of the jaw crusher by New Gaonai Heavy Industry:
Regularly check the wear of the lining, especially the middle and lower parts. When the tooth height is worn away by 3/5, a new lining should be replaced in time.
When the linings on both sides are worn away by 2/5, they also need to be replaced with new ones. If the lining is cracked or damaged, it should be repaired or replaced in time after discovery. Clean the impurities and accumulations on the surface of the lining to keep its surface clean.
Regularly check the working condition of the lubrication system, including oil level, oil pressure and oil temperature, to ensure the normal supply of lubricating oil. Use suitable lubricating oil and add and replace it according to the prescribed cycle. According to the properties and requirements of the crushed materials, choose the appropriate liner shape and material. For example, for crushing layered materials and conditions requiring higher product particle size, it is not appropriate to use smooth liner; for crushing hard materials with strong corrosiveness, smooth liner can be used to extend the life of the liner. The commonly used liner material is ZGMn13, which has good wear resistance and toughness. Appropriately reducing the surface roughness of the liner can improve the fatigue wear resistance. The specific roughness requirements are determined according to the contact stress and hardness of the liner surface. Practice shows that appropriately reducing the surface roughness of the liner is an effective way to improve the fatigue wear resistance. The level of surface roughness requirements of the liner is related to the contact stress on the liner surface. Usually, when the contact stress or the surface hardness of the liner is high, the surface roughness requirements of the liner are lower.
In the early stage of liner wear, you can consider turning the tooth plate around or turning the upper and lower pieces around to extend its service life. When replacing the liner, ensure that the size, weight and model of the new liner are consistent with the original liner to ensure the normal operation of the crusher.
Carry out planned maintenance, including minor repairs, medium repairs and major repairs. The minor repair cycle is 1-3 months, mainly checking and repairing the adjustment device, worn liner, etc.; the medium repair cycle is 1-2 years, including replacing the thrust plate, liner, etc.; the major repair cycle is about 5 years, including replacing or turning the eccentric shaft and movable jaw spindle, etc.
In short, the replacement cycle of the jaw crusher liner varies according to the actual working conditions and usage habits. In order to ensure production efficiency and stable operation of the equipment, it is recommended that users regularly check the wear of the liner, and determine the best time to replace it in combination with signs such as reduced production. At the same time, by selecting high-quality liners, optimizing operating parameters and strengthening maintenance, the service life of the liner can be extended and production costs can be reduced.
specialized in R&D and manufacturing of crushing, milling, screening, feeding, conveying, automation and other equipment.
