How to evaluate the reliability and durability of hydraulic excavators used in coal mines（haoyun）

The editor of Shandong Haoyun Heavy Industry Machinery Co., Ltd. will provide the following information on how to evaluate the reliability and durability of hydraulic excavators used in coal mines.

Haoyun Heavy Industry can evaluate the reliability and durability of hydraulic excavators used in coal mines from the following aspects:

1、 Reliability assessment

1. Data collection of fault interval time
2. Collect data on the fault interval time of hydraulic excavators used in coal mines during actual use, which is the basis for evaluating reliability. For example, recording the time interval between each fault occurrence and analyzing the reliability of the equipment through a large amount of data accumulation.
3. Evaluation based on Bayesian principle and maximum entropy density principle

For the lifting mechanism of large mining excavators with small sample characteristics, a reliability evaluation method based on Bayesian principle and maximum entropy density principle can be used. This method can effectively use a small number of samples obtained to estimate the probability density function, thereby solving the problem of reliability analysis, and is also applicable to the reliability analysis of other mechanical products that are difficult to obtain a large number of samples.

3. Mean time between failures and reliability calculation
4. By using specific calculation methods to obtain indicators such as average time between failures and reliability, these indicators can intuitively reflect the reliability level of hydraulic excavators used in coal mines.

2、 Durability assessment

1. Research on Life Cycle Health Management and Intelligent Maintenance
2. Starting from the feature extraction of coal mine equipment monitoring signals, the classification of health status levels, and the construction of health status assessment models, this paper explores the key methods for health status assessment of hydraulic excavators used in coal mines. Haoyun Heavy Industry, for example, evaluates the health status of equipment and infers its durability by analyzing monitoring signals such as pressure and flow in hydraulic systems.
3. Remaining useful life prediction
4. Utilizing data intelligent analysis and processing technology to predict the remaining service life of hydraulic excavators used in coal mines is also an important aspect of evaluating durability. By predicting the remaining service life, preparations for maintenance or replacement of equipment can be made in advance to ensure the continuity and safety of production.
5. Intelligent maintenance decision-making
6. Develop intelligent maintenance decisions based on the health status assessment and remaining service life prediction results of the equipment. For example, determining a reasonable maintenance cycle, maintenance content, etc. to extend the durability of the equipment.

3、 Comprehensive evaluation

1. Safety and environmental assessment

The safety and environmental assessment of hydraulic excavators used in coal mines should be undertaken by institutions with evaluation and testing capabilities, and the responsible unit shall be responsible for the evaluation and testing results. This includes an evaluation of the fire prevention and extinguishing design, safety measures, and other aspects of the equipment to ensure its safety and environmental friendliness during use.

2. Assessment of Safety Production Standardization Compliance
3. The coal mining enterprise where the hydraulic excavator for coal mines is located should have the conditions for standardized safety production, such as a complete and valid safety production license and business license. At the same time, enterprises also need to establish and improve various equipment and facility inspection and maintenance systems, conduct regular inspections and maintenance, and keep records. These are important criteria for evaluating the reliability and durability of hydraulic excavators used in coal mines.