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我国煤矿的可弯曲刮板运输机、皮带输送机、转载机、刨煤机等机械设备的主传动系统中,广泛使用限矩型(安全型)液力偶合器,它与电动机联合工作,可以达到保护和改善机器性能的目的。目前,国产液力偶合器的工作液体多为可燃性矿物油(一般为20号或30号汽轮机油),由于井下采掘运输机械的工作条件比较恶劣,运转中常发生过载、卡链和冲击负荷,若管理不善,很容易引起工作液体过热着火和爆炸事故,甚至酿成恶性火灾,威胁矿井安全生产。多年来,这类事故在全国煤矿屡有发生。为了从根本上杜绝液力偶合器的过热着火事故,铜川矿务局液力联轴器制造厂对英
China’s coal mines bendable scraper conveyor, belt conveyor, reloader, plow and other machinery and equipment of the main drive system, the use of torque limit (safety) hydraulic coupling, which works in conjunction with the motor can be achieved The purpose of protecting and improving machine performance. At present, domestic hydraulic coupling fluid is mostly flammable mineral oil (usually 20 or 30 turbine oil), due to the underground mining and transportation machinery working conditions are harsh, often occur during operation overload, the card chain and impact load, If mismanaged, it is easy to cause the working fluid overheating and explosion accidents, and even lead to a vicious fire, threatening mine safety. Over the years, such accidents have occurred frequently in the country’s coal mines. In order to fundamentally put an end to overheat hydraulic coupling accidental fire, hydraulic coupling Tongchuan Mining Bureau of the British