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style="display:none;">[典型故障—皮带传动断轴实例]:Ms.参与朋友聊天,获知他接待了一起典型故障,一个客户使用的电机发生了断轴问题,断轴部位发生在轴伸根部。按照多年的经验积累,初步分析该客户的使用工况比较特殊,而且很可能是使用了皮带轮拖动。后期了解的?..</div><div id="rpt7hb9qi553h" class="brand_news_con"><p style="text-indent:2em;"> Ms.参与朋友聊天,获知他接待了一起典型故障,一个客户使用的电机发生了断轴问题,断轴部位发生在轴伸根部。按照多年的经验积累,初步分析该客户的使用工况比较特殊,而且很可能是使用了皮带轮拖动?</p> <p style="text-indent:2em;">幸运快三代理 后期了解的情况与分析和推断基本吻合;该电机是一台H355?8极电机,功率160kW,客户使用皮带轮拖动了破碎机。从电机受力的情况分析,任何一个电机厂家都不建议客户采用皮带传动,特别是对于拖动破碎设备的情况?</p> <p style="text-indent:2em;">幸运快三代理 1、电机采用皮带传动的问题 </p> <p style="text-indent:2em;">幸运快三代理 对于采用皮带轮联接的电机,当有的客户给电机输出轴配皮带轮时,如果带轮太重或皮带安装太紧,也会导致电机在运转过程中,电机输出轴承受持续交变弯曲应力作用,这种应力对轴产生弯矩最大值在输出轴轴承支点附近,反复冲击引起疲劳,使轴逐渐产生裂纹,最终完全断裂?</p> <p style="text-indent:2em;"> 一般情况下,大电机应尽可能避免采用皮带轮传动。电机的技术条件及规范厂家的说明书中都有规定,对于H280及以上的电机不建议采用皮带轮传动,原因或理论依据就是刚才提到的:皮带传动本身使电机轴在承受正常载荷的同时,会附加弯应力,加上皮带太紧的因素,导致电机本体在运行过程中轴始终承受较大的交变载荷,而轴伸和轴承部位应力集中问题最为严重,容易导致断轴故障?</p> <p style="text-indent:2em;">幸运快三代理 如果电机与所拖动的设备不同心,电机轴就会承受额外的或者说设计预期之外的附加交变载荷,电机运行过程中,会导致电机轴金属疲劳性伤损。当电机轴伸端或轴的相对薄弱环节承受的附加载荷太大时,就会造成电机轴在径向上有弯曲变形,更为可怕的是由此进一步恶化电机轴运行条件,与所承受载荷扭力综合作用,最终导致电机轴折断,断裂位置一般在靠近轴承的地方,大多在端盖的里侧位置?</p> <p style="text-indent:2em;">幸运快三代理 2、破碎机分类和介?</p> <p style="text-indent:2em;"> ?箱式破碎?</p> <p style="text-indent:2em;"> 箱式破碎机(方箱破)俗称方箱破碎机,重锤破碎机。适用于破碎各种脆性材料的矿物。被破碎物料为煤、盐、白亚、石膏、明矾、砖、瓦、石灰石、青石、页岩、煤矸石等。其物料的抗压强度不超过300兆帕,湿度不大于30%?</p> <p style="text-indent:2em;">幸运快三代理 ?颚式破碎?</p> <p style="text-indent:2em;">幸运快三代理 颚式破碎机俗称颚破,又名老虎口。由动颚和静颚两块颚板组成破碎腔,模拟动物的两颚运动而完成物料破碎作业的破碎机。广泛运用于矿山冶炼、建材、公路、铁路、水利和化工等行业中各种矿石与大块物料的破碎,如河卵石、花岗岩、玄武岩、石英石、铁矿石、辉绿岩、砂石生产线石灰石、方解石、白云石、重晶石、滑石、石膏、膨润土等?</p></div><div id="rpt7hb9qi553h" class="meneame"><span class="disabled">< </span><span class="current">1</span> <span class="disabled">> </span></div> <div id="rpt7hb9qi553h" style="text-align: center;padding-top: 10px;"><img src="/images/code.jpg" alt="关注有惊?" /></div> <div id="rpt7hb9qi553h" 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