Under the heavy plate feeding machine cantilever roller

Under the heavy plate feeding machine cantilever roller of 2020 - 04 - 09 Li Ximing zhi-xiang song ( Beijing blue lake cement group co. , LTD. ) Some cement company has five limestone crushing production line, including 1, 2, line board feeding machine for WB1800 & times; 9800 heavy plate feeding machine, carries about 13000 t limestone, the return of the roller under the conditions of the trough plate one of cantilever double-row type, the shaft, gland, oil seal, bearing, roller body, pressure of oil cup, size of & Phi; 190mm× The return period of 150 mm, plate feeding machine load trough plate through 18 mm thick edge damper bearing in the roller on the roller body, a total of 10 to 20. The production process, often encounter the roller is not flexible operation, serious deformation, derailment caton cause trough plates, plate feeding machine, such as fault, cause great influence to the production. This paper analyzes the existing problems, and to WB1800 & times; 9800 heavy plate feeding machine cantilever roller under the reformation experience was summarized. A, production problems that exist in the analysis ( 1) Due to contain a certain amount of limestone soil and part of the binder on the trough plate; Load trough plate thickness 12 mm, weight is bigger, the trough plate caused by return of load to a certain extent, the idler roller body wear faster. ( 2) Load groove edge flap only 18 mm, the thickness of the return period of load by powerful interface formed by small pressure, roller roller body under the accelerated wear and tear. ( 3) Groove of the wear and tear on the idler roller body, after the trough plate slight deformation due to load or inconsistent trip chain roller under destructive damage, roller distortion. ( 4) Under the roller for cantilever, after the deformation of supporting roller distortion, roller bearing under cyclical impact load, increased the risk of damage. ( 5) Due to the problem on the design, the roller body is shorter, when in the above situation, easily to return tank derailment, serious when plate feeding machine caton pull over, cause great influence to the production. Roller under the working environment is poor, not easy to check and maintenance, ( See figure 1) ； Damage (under the roller wear is fast, See figure 2) Is not easy to repair. Through the statistics, two WB1800 & times; Need to change per year on average 9800 heavy plate feeding machine roller under 30. Figure 1 roller under the working conditions before modification of figure 2 damage under the roller, the transformation method ( 1) The original 10 gear roller removal under 20, select 6 files ( Uniform) Install new design processing of shaft roller, the design is shown in figure 3, the material object as shown in figure 4. Figure 3 redesign of shaft on rollers in figure 4 using under shaft roller ( 2) New external on both ends of the roller bearing, bearing material and plate feeding machine frame by bolts to close, easy to maintenance. ( 3) Roller body positioning by card key in the shaft, and locking, the length of the roll groove to the load board fixed chain thickening tank plate length and corresponding operation, load bearing return trough plates. ( 4) The roller body material is 42 crmo. Three, the running effect after reconstruction plate feeding machine runs smoothly, because of external bearing, lubricating oil filling, convenient and easy maintenance, the flexible roller is running. Trough plate and roller roller body under load contact area is large, then no caton roller deformation plate feeding machine shutdown, improve equipment intact rate and availability, to ensure normal production. （ Source: China cement spare parts network)