The stone in the track is not cleared in time. During c […]
The stone in the track is not cleared in time. During construction, 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, causing the track to be stretched. . When the squeezing force in the track exceeds the bearing capacity of the chain, the chain rail will break. If the dirt or gravel rolls into the chain rail, the guide wheel and the 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. 2 2. The construction road and the site of the earthwork project are not uneven.
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 crawler belt A little to bear the weight of the machine; seriously violate the safe operating procedures, often walk more than 30 degrees of slope, when the machine can not climb up, use the bucket to insert the soil, relying on the expansion and contraction force of the arm of the arm to help climb the slope. All of the above are easy to damage and strain the track. 3 Third, the unevenness of the apron caused the excavator to be in the "three legs" state, in violation of the safe operating 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 the track of the excavator to be unevenly loaded; the track of the excavator 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.