The wear of crusher parts is the key factor affecting the service life of the crusher. This article mainly introduces what are the main methods to avoid wear on crusher components, and what should be done in daily life to avoid wear on crusher components, And what are some of the factors that affect the parts of the crusher on a daily basis.
What are the ways to avoid wear on crusher components?
In daily use, it is necessary to pay attention to the blockage of the crusher material at any time. Once this problem is found, it needs to be cleaned up in time, so that the crusher can continue to operate normally. In this way, the failure of crusher equipment can be reduced through daily inspection, so as to avoid wear on crusher components and reduce the occurrence of crusher failures.
During the crushing process, the temperature of the crusher bearing will continue to rise due to crushing friction, but the temperature must be kept within a certain range. If you do not do this, not only will the crusher fail or even stop working, it will also wear out the machinery and equipment to a greater extent. In severe cases, an accident may occur due to improper operation. Only when the bearing temperature is too high can be avoided during the working process, to avoid wear on crusher components.
Some parts of the crusher are made of iron, so they are easy to rust due to water. Therefore, when using or cleaning the crusher equipment, it is necessary to prevent the equipment from rusting when exposed to water, so as to avoid wear on crusher components.
What are the factors that affect the wear of crusher parts?
Hammer head, jaw plate, rolling mortar wall these commonly used crusher parts are very easy to wear and should be replaced frequently. To avoid wear on crusher components, not only should we start from these frequently replaced parts, but also analyze their internal factors. Consider the aspects of hardness, strength, speed, angle, temperature, humidity, and particle size.
Among the many characteristics of wear, the hardness of the material is particularly important
Strength refers to the pressure of the material on the abrasive. With the increase of the wear pressure, the amount of wear increases, because with the increase of the pressure, the extrusion depth of the abrasive to the material increases, and the energy of cutting deformation on the surface of the material increases with the increase of the pressure. enhancement. The stability of the force control can also avoid wear on crusher components.
For different types of wear, the effect of the wear speed is different. In the case of sliding, the effect of the speed is not obvious, and the erosion wear speed has an important effect on the wear. avoid wear on crusher components under certain circumstances.
In erosion wear, the impact angle has a very large influence on wear, and the impact angle has different effects on brittle materials and ductile materials. The wear amount of brittle materials increases with the increase of the angle, and the wear amount is the largest when it is close to 90 degrees; for ductile materials, the wear amount first increases with the increase of the impact angle, reaches the maximum value at a certain angle, and then increases with the impact angle. Increase the amount of wear under the general. Therefore, controlling the impact angle can avoid wear on crusher components.
Wear increases with increasing temperature.
In actual production, in the case of metal friction, when the liquid enters the opposite grinding interface, the wear can be greatly reduced, but in the case of abrasive wear, moisture enters the abrasive, and the wear will become more serious. So pay more attention to the humidity of the abrasive to avoid wear on crusher components.
How to effectively avoid wear of crusher parts?
The crusher is worn out
In terms of materials: some of the materials of the crusher parts are mixed with non-metallic materials, which are very easy to cause stress concentration. The edges of these heterogeneous materials are prone to cracks, resulting in a great reduction in the service life of the material. At the same time, if the interior is defective, there may also be wear of the crusher parts.
The surface of the lining plate is too rough: the surface of the lining plate is too rough, which leads to the continuous increase of wear with the material during crushing, and the life of the wearing parts will be shortened. Therefore, reducing the roughness of the lining plate reasonably will increase the production efficiency and effectively prolong the crushing. The life of the machine wearing parts.
Other factors: In addition, the surface stress state of the liner, the level of matching accuracy, and the properties of the lubricating oil all affect the speed of fatigue wear. Usually, the excessive stress on the surface of the liner, the too small or too large fitting clearance, and the corrosive substances produced by the lubricating oil in use will aggravate the fatigue wear.
How to avoid wear on crusher components
After the crusher is installed, before the normal production, the crushing chamber can be cleaned to ensure that the interior is clean, and all foreign objects and parts are removed from the crushing chamber, which can also avoid wear on crusher components.
Appropriately reduce the height of the rib plate of the crusher, preferably 5 cm higher than the grate bar. At the same time, some reinforced plates that are conducive to the strength of the rib plate can be welded on the side of the rib plate, so as to effectively enhance the impact resistance of the grate plate. Wear resistance to avoid wear on crusher components.
To reduce the situation that unbreakable foreign objects such as iron blocks enter the crushing cavity, a magnetic separator can be used to absorb the unbreakable metal foreign objects in the crushing machine room before inputting the raw materials, so as to avoid wear on crusher components.
In the normal production process, the staff should also pay more attention to the operation of the equipment. If there is an abnormal situation, the machine needs to be stopped immediately to check the equipment. If the abnormal foreign matter is taken out of the crusher cavity earlier, the crusher can be avoided earlier. Parts are worn.
What should be done on a daily basis to avoid wear on crusher components?
Choosing the Right Crusher Equipment
When choosing the crusher equipment that suits you, you are not very good at it. Many factors will interfere with your thinking, and you will be biased by the manufacturer. As a result, the equipment you buy is not what you need. Therefore, in the purchase process, you must first make a budget, find out your real needs, and then compare all manufacturers to choose the most suitable crusher for you.
Consider crusher performance
For the crusher, the performance of the machine is also very important for the user. Therefore, when choosing a crusher, it is necessary to consider whether the cost-effectiveness of the equipment is high enough, and in the subsequent production work, the wear and tear of the crusher parts can also be avoided to the greatest extent.
Effective control of crusher feeding
When the crusher is working, there may be failures in different situations. For example, because the jaw plate is not in place with the surface of the equipment, the speed is too fast, and the material is too late to be broken at this time, resulting in blockage of the equipment, but the machine is still running. , at this time, the machine is wasting, that is, it cannot be discharged or fed, which will cause greater damage to the machine. Therefore, when using it, you should always pay attention to the feeding amount to avoid blockage and avoid wear on crusher components.
Adjust the crusher angle in time
For the crusher, the crushing all depends on the movable and fixed jaws of the crusher equipment, and it is precisely because of the included angle of the gap between the movable and fixed jaws that the degree of crushing is controlled. The size of the included angle affects the output and energy consumption of the product.
When the included angle is small, the throughput of the material is less, and the energy consumption will be greatly increased at this time. The opposite principle is the same, so it is still necessary to be timely. Pay attention to the degree of the included angle to avoid wear on crusher components.
How to deal with the wear of the hammer head of the crusher parts?
Hammer head material
The hardness and toughness of the hammer head are one of the reasons that affect the wear of the hammer head. Generally, the greater the hardness, the greater the wear resistance of the hammer, but as the hardness increases, the impact toughness of the hammer will decrease, so the key to improving the wear resistance of the hammer is to find a combination of hardness and good toughness. s material.
Treatment method: Choose hammer heads with high wear-resistant materials, such as high manganese steel, high chromium cast iron, and low carbon alloy steel.
Hammer production quality
The manufacturing process of the hammer also determines the key factor of its wear and tear. Obviously, if the surface or interior of the hammer is defective due to the manufacturing process, if there are shrinkage holes, cracks, and perforations, not only the hammer will be easy to wear, but also It can even cause the hammer to break.
Treatment method: A reasonable hammer production process should be adopted, and a reasonable casting and heat treatment process should be formulated. For example, when manufacturing high-chromium cast iron hammers, reasonable treatment methods are adopted, and the temperature is strictly controlled, so that the produced hammers have good solidification sequence and feeding conditions, and the internal structure is dense, which reduces the phenomenon of coarse grains.
The structure of the hammer
The structure and shape of the hammer head also affect the wear. The heat treatment performance and internal structure of the hammer head with different structures and shapes are very different, which in turn affects the wear resistance. The special size and thickness of the hammer head have a greater impact. In addition, the thicker the hammer head, the harder it is to harden and the worse the wear resistance.
Processing method: It is to optimize the structure of the hammer head.
Technical parameters of crusher
The technical parameters affecting the wear resistance of the hammer head of the crusher are the power and speed of the rotor. These two parameters reflect the linear speed and impact force of the hammer head, which are related to the production capacity of the crusher and the degree of impact hardening of the hammer head. The better the degree, the longer the service life. When the rotating speed of the rotor is too low, the production capacity will be low, resulting in poor impact hardening of the hammer head and poor wear resistance.
When the rotating speed of the rotor is too high, although the hammer head will obtain better impact hardening and the production capacity of the equipment will be improved, but at the same time It will cause strong wear of the hammer head and the lining plate, which is not good for the life of the hammer head, and also increases the power consumption.
Treatment method: optimize the technical parameters, control the power and speed of the rotor, neither too high nor too low, so as to avoid wear on crusher components.
Clearance of each part in the crusher structure
The gaps that affect the wear of the hammer head of the crusher include the gap between the rotor body, the lining plate of the crusher, and the hammer head. When the gap is unreasonable, there will be material accumulation in the gap, which will not only cause the hammer head to wear and reduce the output, but also In severe cases, it can also cause blockage.
Treatment method: adjust the clearance of the rotor and hammer head to make it within an appropriate range.
A few simple ways to avoid wear on crusher components?
Due to the long-term overload operation of the bearing, failure to maintain it in time, improper maintenance, and aging of the equipment, choosing the appropriate bearing type and replacing the bearing on time is an important measure to prevent bearing damage, and it can also avoid wear on crusher components.
In the early stage of equipment installation, since many originals are new products, it is inevitable that some problems will be encountered during the installation process. For experienced installers, they can be solved smoothly through experience, but not necessarily for novices. The installation of the bearing is also the same.
When using, if there is no skill but brute force, it will cause the deformation of the bearing, and some of the bearings are not installed properly, resulting in too small bearing clearance, which will also cause damage to the parts of the crusher. Therefore, pay more attention during installation to avoid wear on crusher components.
In the process of use, if lubricating oil is not added for a long time, or although lubricating oil is added regularly, the selected type of lubricating oil is wrong, and the machine will be damaged if the filling is not in place, so be sure to choose the correct lubricating oil. , so as to avoid wear on crusher components.
This is the whole introduction of this article to avoid wear on crusher components. This article is a general introduction. If you want to know how to deal with the wear of some specific parts and how to solve it, you can leave a comment in our article. , we will reply to your comments one by one. At the same time, there are other excellent articles on our website. You are welcome to continue browsing on the website.