For mine belt conveyor roller bearing removal method of research

For mine belt conveyor roller bearings 2018 - remove the method research 08 - 22 li ( Ningxia bull-running industrial group co. , LTD. , final assembly factory, heaven and earth in its mouth, 753001) Abstract: in view of the mine belt conveyor roller structure is special, poor working condition of overhaul environment; Using spherical roller bearing, rolling body can flip activities; Bearing outer ring and the installation location for the characteristics of the surplus to cooperate, the remove method is simple and convenient operation, safe and reliable, greatly improving the production efficiency, can meet the demand of all current belt conveyor roller bearing removal. Key words: belt conveyor roller; Remove the method; Fast-acting 0 introduction of belt conveyor used in coal mine fully mechanized working face reproduced machine passes quickly and lap, including the tail drum for belt reversing, the main function of the structure is shown in figure 1, poor working environment, high speed, heavy load, long wheelbase. If the lubrication is not timely or leak can cause bearing, such as color, and then burned to death. How to quickly and easily when overhauling the replacement bearing is particularly important, the traditional methods with copper bar or frequent hammer percussion, unbalanced stress points, must be changed frequently position make its uniform stress, so that the operator of the intensity of labor is very big, need a few people took turns to exchange with a hammer. At the same time due to the bearing by frequent impact, bearing damage easily. This article mainly around belt roller disassembly and improve efficiency and quality of methods and tools for research. 1 the status quo analysis of the current removal methods is to: (1) end cover and the nut set of covers are removed in the first place. (2) the use of hydraulic jack or first copper bar shaft and a plate of the bearing will be removed out ( Stress points on a shaft shoulder) 。 (3) the use of copper bar or a sledgehammer to strip the wood from the other side of the drum percussion bearing opening another plate of bearing outer ring. The disadvantages of such removal methods mainly using spherical roller bearing rollers, between outer ring and roller bearing for surplus to cooperate, rolling element can be reversed ( As shown in figure 2) Make inner ring activity cannot use common disassembly tooling, operators in the bearing outer ring with the strip wood support as a stress point, with copper bar or frequent hammer percussion, unbalanced stress points, must be changed frequently position make its uniform stress, so that the operator of the intensity of labor is very big, need a few people took turns to exchange with a hammer. At the same time due to the bearing by frequent impact, bearing damage easily. 2 good efficient removal methods and equipment design for belt conveyor roller structure and the use of the characteristics of the spherical roller bearing, using the double pressure plate and support plate and hydraulic jack made the disassembly scheme in figure 3 below. 3 actual use effect of the belt tail roller bearing down the tooling and verified by field use ( As shown in figure 4, figure 5, figure 6) , but with a flexible product adjust the position of the support plate and the pressure plate to meet the needs of different types of disassembly, able to gm; Simple and convenient operation, safe and reliable, high efficiency. 4 in the traditional method of removal efficiency is low, remove a plate bearing need to work for 30 minutes, three operators frequently punch and bearing, bearing cage is easy to damage, influenced by artificial factors, it is difficult to ensure the quality. Using this method and tooling to remove only need two operators work for 10 minutes to complete, at least a 78% increase in production efficiency, the labor intensity of operators greatly reduce; Simple and convenient operation, safe and reliable. And to receive strength evenly in the scheme adopts the hydraulic jack bearing, can fully guarantee the quality of removal after the completion of the bearing. References: 1] Zhi-li sun, cold and gather, Wei Yan just such as editor in chief. Mechanical design [ M] 。 Northeastern University press, 2000. ( 2] The China machinery industry federation. JB / T5000 - General technical conditions part 10:2007 heavy machinery assembly [ M] 。 Beijing machinery industry press, 2008. ( 3] Mechanical design manual is written by editorial board. Mechanical design manual [ M] 。 Beijing: mechanical industry publishing house, 2004. Source: the value engineering 2017, 35