Crusher is also called gravel crusher, stone crusher, stone crusher and other names, is the machine that breaks large stones into small stones. At present, the commonly used domestic crushers are jaw crusher, cone crusher and impact crusher. For the jaw crusher, its wearing parts mainly include moving jaw, tooth plate, eccentric shaft and bearing. The wear of the cone crusher is mainly the wear of the frame and spherical bearing, the wear of the spindle and the cone bushing, the wear of the thrust disc and the gear, the wear of the crushing chamber and the wear of the eccentric bushing. The wearing parts of the impact crusher are mainly the plate hammer and the impact plate. In the actual production process, the abnormal wear of wearing parts is not only related to the structural defects of the equipment, but also related to the hardness of the material, the particle size of the material is too coarse, the lubrication effect of the equipment is not ideal, and environmental factors. Here is a detailed introduction:

1. Defects of equipment structure. A large part of the wear of the equipment is due to the defects in the installation of the equipment, such as the small gap between the structural parts, the skew of the structural parts, the reasonable installation Angle, etc., which leads to the smooth operation of the equipment parts or the uneven contact force, resulting in serious local wear. For example, the wear of the eccentric shaft of the jaw crusher is often due to the unreasonable rotation of the sealing sleeve and the cone sleeve, so that the cone sleeve loses the top tightening force, resulting in the loosening of the eccentric shaft.
   2, the hardness of the material is too large. Material hardness is an important factor affecting the crushing efficiency of the crusher, and it is also the main factor leading to the wear of the tooth plate, crushing chamber and other direct contact parts with the ore block. The greater the hardness of the material, the more difficult the crushing is, so that the crushing efficiency of the crusher is reduced, the wear rate is accelerated, and the service life of the crusher is shortened.
2. Improper feeding granularity. If the feed particle size is improper, it will not only affect the crushing effect, but also lead to serious wear of the tooth plate, thrust plate and liner components, when the feed particle size is too large, the sliding structure of the crusher will be more serious damage.
   4, the lubrication effect of the equipment is not ideal. Insufficient lubrication is the main cause of bearing wear, because the bearing bears a large load in production, so that the bearing in operation friction is larger, so that the bearing to withstand serious wear.
3. Environmental factors. Among the environmental factors, the biggest impact on the crusher is dust. The crushing operation of the crusher will produce a lot of dust, if the equipment sealing effect is not good, the dust on the one hand will damage the power system of the crusher, resulting in serious wear of the power system; On the other hand, it will affect the lubrication system of the crusher, because the dust enters the lubrication part, it is easy to increase the wear of the lubricating surface.

This article mainly introduces what are the wearing parts of the crusher and the reasons for the damage, hoping to help everyone in the use of the crusher. If you want to know more about the crusher, welcome to call or online consultation, message, Leitos machinery will send professionals to answer your questions.