What Changes Exist in the Load Applied to Loader Tyres?
During the operation of loaders, the load acting on the tires undergoes periodic changes, causing the tires to produce periodic deformations and friction with the ground.
In this way, the temperature of the tire body will continue to rise. The temperature rise of loder tyres is not only related to the vehicle load, driving speed, road conditions, but also to the operation time and environmental temperature.
In summer, the outside temperature is high, and the range of tire temperature changes is small, so the temperature of the tires is easily increased. As the temperature of the tire body increases, it accelerates the aging of the rubber, and the performance of the tire will decrease. When it approaches or exceeds the critical temperature of the tire, it is easy to cause the tire body ply layer to peel off or even explode.
The critical temperature of the radial tire commonly used in construction machinery nowadays is 105 ℃. Therefore, when driving in summer, the temperature range of the tire is limited to 100-107 ℃. If it exceeds 115 ℃, it will be a dangerous temperature and may cause a tire explosion. Therefore, in hot summer, it is better to work in the morning and evening and take a break at noon to avoid excessive tire temperature.
If the situation does not allow it, during the operation, the tire temperature must be checked. If the tire body is hot, the vehicle should be stopped immediately. When resting, the vehicle should be parked in a shaded place to avoid exposing the tire to direct sunlight. Wait for loder tyres to naturally cool down before proceeding with the operation. Never use cold water or deflate to reduce pressure and cool down.
The walking system of the loder tyres is an important component, which has a great impact on the quality of vehicle use. The traction performance, braking performance, and economic performance of the loader are all related to the performance of the tires.
At the same time, tires are vulnerable and expensive parts, accounting for about 7% to 15% of the total cost of the loader, and 14% to 25% of the mechanical cost and operating expenses.