EN
In daily engineering operations, "excavator bucket teeth" are one of the parts that contact materials most frequently, and they bear the heavy responsibility of directly cutting into soil, rocks or other materials. Whether it is mining operations, earthwork construction or municipal engineering, the performance and wear degree of bucket teeth are directly related to construction efficiency, fuel consumption level and the service life of the excavator. Therefore, it is a compulsory course for every operator and equipment manager to correctly understand the "reasons of excavator bucket tooth wear" and master scientific replacement techniques.
COMMON "ANALYSIS OF CAUSES OF EXCAVATOR BUCKET TEETH WEAR"
1. Complex working environment causes physical wear
"What to do if the bucket teeth wear quickly" is a common question on the construction site. In fact, most wear comes from long-term high-intensity contact with high-hardness materials. For example, in sand and gravel fields, river pebble formations or ore stripping operations, the tip of the bucket teeth repeatedly collides and rubs against hard materials, which easily produces "rapid passivation of the front end of the excavator bucket teeth".
This kind of wear is a typical physical wear, which is manifested as the bucket teeth becoming shorter, blunt, or even partially falling off. If it is not replaced in time, it will not only affect the excavation efficiency, but also increase the engine load and fuel consumption.
2. Unreasonable excavation angle leads to abnormal force
In actual operation, many excavator operators habitually "press down at right angles" to dig, rather than using the correct "layered cutting" method. This violent operation will cause the bucket teeth to bear pressure exceeding the design load in an instant, which will lead to problems such as "bucket tooth root fracture" or "excavator bucket tooth seat falling off".
Abnormal force will also aggravate the gap between the tooth body and the tooth seat, resulting in subsequent hidden dangers such as loosening and deformation, affecting the firmness and stability of the entire bucket tooth system.
3. Poor material or rough workmanship
Although some "low-quality excavator bucket teeth" on the market are cheap, they are made of ordinary cast iron or low-carbon steel, with insufficient hardness and poor wear resistance. Some have not even undergone heat treatment or tempering process, and cracking and deformation will occur soon after use.
Choosing "high wear-resistant alloy steel excavator bucket teeth" is one of the keys to extending service life. High-quality bucket teeth are usually made of high-manganese steel, alloy steel and other materials. Through overall quenching and surface hardening treatment, they retain toughness and improve wear resistance.
4. Failure to replace in time leads to "chain wear"
When "bucket teeth are worn out and not replaced in time", it will not only reduce the excavation efficiency, but also further wear the "bucket tooth seat" and "connecting pin shaft". Over time, the situation that only needs to replace the bucket teeth has become a repair project for the entire installation part, increasing maintenance costs.
HOW TO JUDGE WHETHER "EXCAVATOR BUCKET TEETH NEED TO BE REPLACED"
1. The appearance becomes obviously blunt or shorter
If it is found that "the tip of the excavator bucket teeth is smooth or truncated", it can be basically judged that it has entered the replacement cycle. Continuing to use it at this time will affect the excavation angle and penetration.
2. Excavation resistance increases, and the machine fuel consumption increases
After the cutting performance of the bucket teeth is weakened, the excavation resistance will increase significantly, and the engine needs to output more power to complete the originally easy task, resulting in "abnormal increase in excavator working fuel consumption".
3. Looseness between the tooth seat and the bucket teeth
If you find "bucket teeth shaking" or "abnormal sounds" at the connection, you should immediately check whether the pin is worn or slipped to avoid tooth loss during operation.
PRACTICAL "EXCAVATOR BUCKET TEETH REPLACEMENT TIPS"
1. Select matching bucket teeth by model
When replacing, you must choose the appropriate bucket tooth type according to the equipment model. Common ones include "rock excavator bucket teeth", "earthwork bucket teeth" and "loosening bucket teeth". Different bucket teeth have obvious differences in structural design and materials, and matching products should be selected according to the construction environment.
2. Use professional tools to disassemble
It is recommended to use tools such as "bucket tooth special crowbar" or "hydraulic tooth extractor" to disassemble the old bucket teeth, and avoid using a sledgehammer to violently hit and damage the tooth seat. It is best to spray the pin shaft with rust remover before disassembly for easy operation.
3. Check the bucket tooth seat and pin shaft when replacing
Don't just focus on the bucket teeth themselves, you must also check whether "the bucket tooth seat has cracks" and "whether the pin shaft is worn and thinned". If "tooth seat cracking" or "pin shaft stuck" is found, it should be replaced or repaired together to avoid the new bucket teeth from being unable to be installed correctly.
4. Apply grease to facilitate future replacement
Before installing the new bucket teeth, apply an appropriate amount of grease to the pin shaft to prevent rust and sticking. This will make the next replacement smoother.
MAINTENANCE SUGGESTIONS FOR EXTENDING THE "SERVICE LIFE OF EXCAVATOR BUCKET TEETH"
Regular inspection and cleaning: It is recommended to check the status of the bucket teeth every 100 hours of operation and remove the mud and stones in the gaps.
Avoid high-intensity continuous operation: Long-term continuous excavation in hard rock formations will aggravate the loss of bucket teeth, and the operation rhythm should be arranged reasonably.
Use high-quality bucket tooth products: such as "replaceable bucket tooth system" or "heat-treated high-wear-resistant bucket teeth", although the initial cost is high, the long-term effect is better.
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