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When we are at work we will inevitably encounter rubber track failure

update:12-01-2019
abstract:

When we are at work, we will inevitably encounter rubbe […]

When we are at work, we will inevitably encounter rubber track failure. Let's take a look at how the rubber track fails. The rubber track consists of a chain link, a chain sleeve, a track pin, a track shoe and a track shoe bolt. The service life of the track is mainly related to the operation of the driver, and the correct operation will extend the use of the track. Life expectancy, reduce construction costs, then what are the reasons for the damage caused by the track in use?

During the construction of the excavator, dirt or debris will roll into the track and be squeezed between the guide wheel, the drive wheel and the track as the track rotates, which will lengthen the track. When the squeezing force in the track exceeds the bearing capacity of the chain rail, the chain rail will break. If the dirt or gravel rolls into the chain rail, the guiding wheel and the supporting roller can be controlled by the rail chain, and the soap is put into the track. At this time, if the driver does not release the tensioning cylinder of the crawler but forces the crawler to derail, the crawler belt is easily broken, and the wear of the crawler belt and the four wheels (the guide wheel, the roller, the carrier roller, and the drive wheel) is accelerated.

The construction road and the site of the earth and stone works are rugged. If the driver does not choose a better walking route when moving the excavator, when the track is pressed on the protruding part of the road surface, the track bears the weight of the machine at a certain point; Violation of safe operating procedures, often walking more than 30 degrees of slope, when the machine can not climb up, the method of climbing the slope by inserting the bucket into the soil and relying on the expansion and contraction force of the arm of the arm. All of the above are easy to damage and strain the track.

The excavator was in a "three-legged" state, violating safety procedures. Especially when excavating on the rock after blasting, because the size of the stone particles is different, the apron is not easy to level, causing uneven force on the excavator track; the crawler's track is squeezed between the bracket and the stone, when excavating When the machine is turned, the weight of the entire machine is almost entirely concentrated on the single-sided track, and the track is pulled or broken due to stress concentration.