Nowadays, many personnel engaged in the operation of wheel loaders lack relevant professional training and have insufficient understanding of machine equipment maintenance and upkeep. There are some good machinery and equipment that have high standards for the quality of spare parts, as well as the quality of natural materials, lubricants, and gear oils. Some purchasing staff lack professional knowledge and a weak sense of responsibility. They purchase some inferior spare parts and fuel, which leads to some failures in the maintenance of small loaders due to the use of inferior spare parts and fuel, reducing the high efficiency of mechanical equipment application.
The working environment of many construction machinery is very complex, with relatively harsh environmental conditions. In addition, there are many operators using construction machinery, and construction sites are generally remote, making it difficult to ensure the normal maintenance and upkeep of equipment in such situations.
With the increasing number of urban construction projects, wheel loaders, as one of the commonly used construction machinery equipment today, should pay attention to what in high temperature weather conditions? In summer, the outdoor temperature is already relatively high, and coupled with the fact that wheel loaders work outdoors for a long time, it is normal for the oil temperature to be too high. What harm does excessive oil temperature cause?
If the heat dissipation of the equipment is not very good during the operation of the wheel loader, it will affect its performance. If the temperature of the equipment is too high, it will reduce the working efficiency. The clutch and brake systems of the wheel loader will also experience friction and high temperature during operation, which may cause damage and burn out. During use, attention should be paid to the temperature of the gearbox oil and certain measures should be taken to reduce the oil temperature. Lowering the gearbox oil temperature can reduce the damage in the middle of mechanical components, which not only improves the working efficiency of the wheel loader, but also increases the working efficiency.
The oil temperature of the gearbox of the wheel loader should be controlled at 30-55 ℃, which is more appropriate. At this temperature, the viscosity, lubricity, and wear resistance of the lubricating oil are all in a relatively good state. The system has high transmission efficiency, but inevitably causes certain losses in energy transmission, leading to an increase in system oil temperature As the oil temperature continues to rise, the viscosity of the oil decreases, leakage increases, the lubricating oil film is damaged, the wear of the parts increases, and the oil temperature rises faster. When the oil temperature is too high, the gap between the moving pairs composed of materials with different expansion coefficients will undergo abnormal changes. If the gap becomes larger, the oil leakage will be severe, and if the gap becomes smaller, components may get stuck; Moreover, hydraulic oil oxidation accelerates and the oil deteriorates; High temperatures can also cause seals such as rubber and nylon to fail due to early aging.
