Belt conveyor roller shaft failure case analysis

Belt conveyor roller shaft failure case analysis 2018 - 09 - 26 roller is an important component of belt conveyor, once the damage will cause the entire process of paralysis, will give production caused great losses, the change for a long time, Generally 3 ~ 5 h) , repair and replacement cost is relatively high. This article to share belt conveyor roller shaft the cause and the solution. Drum up axis drum up the cause of shaft is a kind of can control counter roller damage form, the formation of the main reasons are: 1. Drum set of incomplete set lock. Its reason is bearing the quality problem; Tight sleeve parts cylinder shaft porphyrization; Mother set of locks lock in place after the end shim position with tight sleeves openings for not three chief. In front of the drum maintenance, to test the bearing clearance, to determine the lock nut tight quantitative. In the process of maintenance, often appear in a openings bearing clearance is too large, the lock nut to turn to the next opening, bearing clearance is too small. Bearing clearance is big, tight enough quantitative, drum up axis; Bearing clearance is small, in the operation of the roller bearing easily jammed, bearing damage. 2. Drum wheel expansion bolt missing, broken. The phenomenon of two bearing the inside end face and distance large difference on both ends of the cylinder, bearing temperature is high, and accompanied by sound. The reason: hub expansion bolt after partly loose, causing other bolt occurred due to uneven when lost, broken. Solutions for the above two kinds of axle case, the solution is: 1. Strengthen the roller bearing, set and spare parts purchasing management, to ensure the quality of spare parts. Because of the different product supplier of bearing clearance also differ slightly. Maintenance personnel according to the usage of each manufacturer of spare parts, identified a few products can use products, ensure the quality of the roller maintenance spare parts. 2. According to the actual situation adopted a spray or hot charging collar. Solved the drum channeling caused by axial porphyrization axis. 3. In order to avoid the drum set of locks appeared in the process of maintenance after mother locked in place, stop shim position and set set of opening in the situation, on the bushing processing for two openings, open position as shown in figure 1. After processing two openings, lock nut every 20 & deg; There is openings can be fixed lock piece. 4. In order to reduce the risk of drum up axis, on both sides of the drum shaft installed in the shaft sleeve. As shown in figure 2. 5. Strengthen site daily open examination of the drum wheel parts, in other parts of the drum after repair, focus on the wheel hub expansion bolt fastening inspection, to ensure that fix the shaft of roller does not exist. After the above improvement measures at the scene of the belt conveyor roller obviously prolong service life, effectively control counter for roller shaft occurring in the course of economic loss.