煤矿用刮板输送机设计范本.doc

编号：0920399383 本 科 毕 业 设 计 题 目： 煤矿用刮板输送机设计 学 院： 机械工程学院 　 专 业： 机械设计制造及其自动化 年　　级： 09级 姓 名： 指导教师： 完成日期： 2013年5月  煤矿用刮板输送机设计 摘 要The design of the scraper conveyor Scraper conveyor：Scraper conveyor is a continuous mechanical flexible traction mechanism. The main coal mining working face with. In the fully mechanized coal face is the main task of the coal mining machine mining under continuously to reprint machine, ensure the coal mining working face continuously discharged. Scraper conveyor is in underground work, and is the first link of coal mining transport, so the working environment is bad, the task is arduous, the damaged badly and numerous. Scraper conveyor at work, to bear tension and compression, bending, impact, friction and corrosion and other damage. Foreign countries can now produce conveyor in general to can not machine without fault coal 6000000 tons, and some have even reachedtons. Scraper conveyor and the domestic production of not only the total volume is low, and frequent breakdowns, per hour transport rate is far lower in foreign countries. The main problem of the scraper conveyor scraper chain strength is not enough, is due to wear, fatigue, its poor quality, corrosion and other reasons, the use of three months in the chain failure increases. Bolt connection reliability generally poor domestic machinery connecting bolt head and tail, often breaking phenomenon. The central groove scraper wear and connection strength is not enough, seriously affects the life and reliability of scraper machine. With plough and deep web shearer, scraper to more traffic, more rapid transit, more durable development. Its structure should be short nose, big power, improve the high speed of chain in the slot and the chain direction. Secondly, should make the scraper conveyor standardization, standardization, intelligent automation direction development, ensure the sync