Research on Welding Technology of the Belt Conveyor Roller

Abstract:

In view of the fracturing occurred at the welded joint of the belt conveyor roller while being in use in a coal mine of Fujian Province, the paper analyses the roller’s structure and stress in the basis of the transmission principle. It explores the reasons of the fracturing problem, and then proposes method to improve the roller’s welding technology. These are the cause of the roller fracturing，which the tension of the belt is great, and the roller itself is not strong enough, and welding process of steel plate is poor, and welding quality is not high. Use CO2 and Ar mixed gas shielded arc welding to do backing weld, then use the welding method of automatic submerged arc welding. Finally the tempering to the welded joint part with the track-type far-infrared heater eliminate the welding residual stress. By actual use, it’s proved that the Welding Process Improvement is feasible, reasonable, reliable and practical.

• Periodical: Applied Mechanics and Materials (Volumes 201-202)
• Pages: 1135-1138
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.201-202.1135
• Online since: October 2012
• Authors: Hong Wei Chen, Rong Jie Wang
• Keywords: Fracturing, Pressure, Roller, Welded Joint, Welding

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