What is the reason for the coupling wear of the half pipe of the trash suction truck？
Sewage suction truck
The journal and supporting Journal of the roller bearing installed on the half axle sleeve of the sewage truck are worn, which causes the loose fit in the middle of the hole shaft, and the inner race of the rolling bearing slides on the journal, which promotes the wear of the friction surface. When the inner seat ring of rolling bearing slips seriously on the journal, it will continue to cause high temperature, causing the journal to be quenched and the compressive strength of raw materials to be reduced.
The half axle sleeve of the sewage truck is made of seamless steel tube. After deformation, the half axle and the sleeve rub against each other to produce sound. It endangers all normal engagement of gear transmission, speeds up grinding and lifting, and causes damage The tire shakes when driving. The spline shaft of the half shaft is worn, twisted and cracked. Because the half shaft spline shaft is the spline bearing large torque on the dirt absorption vehicle, it not only has great wear, but also is easy to cause distortion deformation. The half shaft fracture often occurs at the corner of the convex green root of the stress and the corner of the end of the spline shaft.
The semi axle of the co suction truck shall be inspected for hidden injury, and no cracks in any way can be found; The spline shaft of the half shaft should have no obvious distortion; The error of determining axial member vibration of the unfinished cylinder in the middle of the half axis should not exceed 1-3mm according to the central line of the half axis; The error of determining axial member vibration of the outer circle of spline shaft should not exceed 0.25ram; The cylinder error of the inner hole of the half axle green inside side of the suction truck should not exceed 0.15ram. When the axial cylinder exceeds the limit, the cylinder degree of the inner hole shall be calibrated by cold extrusion, and the adjustment of the inner hole can be milled. After the half axle sleeve stop screw hole or the casing precise positioning screw hole on the rear axle of the vehicle sucking car is broken, the sleeve can not be moved due to the limit switch, which will cause the outer thread of the wheel ring axle to wear, move the diameter of the rolling bearing shaft, and the wheels of the suction truck will swing during operation, which improves the friction resistance of the driving, affects the efficiency of the braking system, and causes the tire to become corroded, When it is serious, it will cause "under the effect of excessive axial force; Water pump flywheel &; Safety accidents
The suction truck operates in the standard harsh environment (such as mining, forest land, infrastructure construction site, etc.), and the casing of the half shaft is damaged in many cases. The key damage method is to remove the casing after the stop screw is broken, so that the end and the inner end of the half shaft convex green are abraded and destroyed; The wear of the neck of the half shaft sleeve rolling bearing exceeds the limit, while the inner hole of the rolling bearing rotates after it is installed; The shaft neck of the half axle sleeve of the trash suction truck is worn out at the shaft neck sealed by the skeleton; The thread of the outer edge of the casing is broken; Casing bending deformation, etc.
