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When faced with arduous rock excavation tasks, the "heavy rock bucket" equipped with 12-15 ton excavators has become a key weapon. This type of bucket is designed for high-intensity rock excavation. However, to keep it in good working condition, meticulous maintenance is essential. Next, let's take a closer look at its maintenance details.
1. Maintenance of bucket structure
(I) Bucket body inspection
The bucket body of a heavy rock bucket is subjected to huge impact forces during frequent rock excavation. Regularly checking whether the bucket body is deformed or cracked is a top priority. Pay special attention to the edges and bottom of the bucket body, which are most susceptible to damage under continuous friction and impact with the rock. Once the "tiny cracks in the bucket body of a 12-15 ton excavator heavy rock bucket" are found, they should be repaired immediately. Welding can be used, but the welding process must be exquisite to ensure that the strength of the weld is equivalent to the original material of the bucket body to avoid cracking again in subsequent operations.
(II) Bucket tooth maintenance
The bucket teeth are the part that directly contacts the rock and wear faster. "The timing of replacing the bucket teeth of a 12-15 ton excavator heavy rock bucket" is particularly critical. When the bucket teeth are worn to about one-third of the original length, or when they are severely deformed or broken, they should be replaced in time. The installation of new bucket teeth should not be ignored. Make sure that they are firmly installed, otherwise the bucket teeth will loosen or even fall off during the excavation process, which will not only affect the excavation efficiency, but also may cause damage to the bucket and excavator.
2. Maintenance of connecting parts
(I) Pins and sleeves
The connecting pins and sleeves between the bucket and the excavator are subjected to frequent torsion and shear forces during operation. Regularly check the "wear of the connecting pins of 12-15 ton excavator heavy rock buckets" to observe whether there are scratches, uneven wear and other phenomena on the surface of the pins. At the same time, check whether the inner diameter of the sleeve has increased due to wear. If the wear of the pins or sleeves exceeds the specified range, they need to be replaced in time. When replacing, choose products with the same specifications as the original parts to ensure the tightness and stability of the connection.
(II) Bolts and nuts
The bolts and nuts that fix the various parts of the bucket also need to be tightened regularly. Due to the violent vibration generated when excavating rocks, bolts and nuts are easy to loosen. Use a professional torque wrench to tighten the bolts and nuts according to the specified torque value to ensure the integrity and stability of the bucket structure. For some key parts that are easy to loosen, you can consider using anti-loosening nuts or applying thread tightening glue to enhance the reliability of the connection.
III. Surface protection and maintenance
(I) Anti-corrosion treatment
The rock excavation environment is harsh, and the bucket surface is easily scratched by rocks and eroded by rain, mud, etc. Regular anti-corrosion treatment of the bucket is an important measure to extend its service life. First, the bucket surface should be thoroughly cleaned to remove attached dirt, rock debris, rust and other impurities. Then, spray high-quality anti-corrosion paint to form a protective film to prevent the bucket from rusting. For "parts of 12-15 ton excavator heavy rock buckets that are often worn", such as the edge of the bucket body and the installation of bucket teeth, the spray thickness of the anti-corrosion paint can be increased to improve the protection effect.
(II) Wear-resistant treatment
In order to improve the wear resistance of the bucket, wear-resistant treatment can be performed on its surface. For example, wear-resistant welding rods are used to perform surfacing welding on easily worn parts to form a wear-resistant layer. Or wear-resistant rubber sheets are pasted. The rubber sheets have good elasticity and wear resistance, which can effectively buffer the impact of rocks on the bucket and reduce wear. When performing wear-resistant treatment, attention should be paid to selecting wear-resistant materials with reliable quality and ensuring that the construction process meets the requirements to achieve the best wear-resistant effect.
In summary, the maintenance of "12-15 ton excavator heavy rock bucket" involves multiple aspects such as structural parts, connecting parts and surface protection. Only by paying attention to these maintenance details can we ensure that the bucket always maintains good performance in high-intensity rock excavation operations, extend its service life, and provide reliable support for engineering construction.
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