No matter what kind of car, the tire is a key part. In underground operation or earthwork operation, speeding or overloading has an impact on the tire. Today we will introduce it to you.

每一種鏟運機都規(guī)定了其所用輪胎的規(guī)格、型式、層級、花紋及有無內胎等。選用輪胎時，要根據(jù)工作環(huán)境的具體情況，并考慮路況、氣候、負荷、速度等各種影響因素以及工作條件。

Specifications, types, levels, patterns and inner tubes of tires for each scraper are specified. When selecting tires, it is necessary to consider the road conditions, climate, load, speed and other factors as well as working conditions according to the specific conditions of the working environment.

每一種鏟運機均規(guī)定了行駛速度和平均車速。當機器超速行駛時，輪胎的溫度升高、簾布層分離，會加快輪胎的磨損和破裂，縮短輪胎壽命，試驗表明了車速和輪胎壽命的關系。

Driving speed and average speed are specified for each scraper. When the machine is speeding, the temperature of the tire increases and the ply separation will accelerate the wear and tear of the tire and shorten the life of the tire. The test shows the relationship between the speed and the life of the tire.

鏟運機在行駛時，輪胎所承受的動載荷很大，即使在平坦的路上以中速行駛時，其動載荷也比靜載荷大一倍。動載荷隨路面的不平度、機器的行駛速度和輪胎剛性的增大而增大。

When the LHD is running, the tire bears a large dynamic load. Even when it is running at a medium speed on a flat road, the dynamic load is twice as large as the static load. The dynamic load increases with the increase of road roughness, machine speed and tire rigidity.

在平坦路面上行駛時，動載荷幾乎與車速的平方成正比，故鏟運機的載荷要小于其額定載荷，因輪胎超載時會出現(xiàn)扭曲、發(fā)熱現(xiàn)象。溫度過高可使簾布層分離輪胎變形，可導致輪胎迅速磨損、割裂。

When driving on a flat road, the dynamic load is almost proportional to the square of the vehicle speed, so the load of the scraper is less than its rated load, because the tire will be distorted and heated when it is overloaded. Too high temperature can cause ply separation and tire deformation, which can lead to rapid tire wear and tear.