The pressure caused by the crawler belt on the ground is very large. The continuous wall is dug 50 meters deep, and the subgrade box must be cushioned under the crawler plate of the crane, otherwise it is easy to cause the continuous wall to collapse. There are not many crawler rubbers for civil excavators. Tank crawlers now generally have ground rubber for track shoes, rubber for track pins and ear hooks, and, for some, rubber for raceway surfaces. After replacing or disassembling the crawler and working for 20 hours, check and adjust the tension of the crawler to keep it normal. Too loose tension will easily cause the crawler belt to take off. Too tight will cause the crawler belt to elong, change the pitch, and cause accelerated wear of the iron teeth and drive wheels.
When the ground ribs are arranged in reverse, the compaction of the soil can be reduced, which can realize the self-cleaning of the crawler and facilitate manual cleaning. When the track slips, the ground bar digs away a lot of soil like impeller blades, and part of the soil adheres to the surface of the track due to the compaction of the track, which affects the adhesion of the subsequent driving process.
The rounded track shoe bolts provide a long-lasting connection. In any harsh field environment, it can always reliably provide a steady stream of driving force. Track shoes are usually made of high manganese alloy steel. Due to the special stress effect of high manganese alloy steel, it shows the characteristics of harder and harder as it is worn, which can greatly enhance the wear resistance of the track shoe. It is mostly suitable for small light industry and small construction machinery industry. Light industry is generally agricultural machinery within one to four tons. The construction machinery industry is mostly used in the small drilling industry.
Commonly used track shoes are classified according to the grounding shape, there are three types of single rib, three ribs and flat bottom, and some of them also use triangular track shoes. Single-reinforced track shoes are mainly used for bulldozers and tractors, because this type of machinery requires the track shoes to have a higher traction capacity when working. However, it is rarely used on excavators. This type of track shoe is only used when the excavator is equipped with a drill frame or requires greater horizontal thrust. A higher traction is required when turning from a child, so the higher crawler bars (ie, crawler spikes) will squeeze away the soil (or land) between the crawler bars, thereby affecting the mobility of the excavator.