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1问题分析NSE型板链式提升机的下链轮结构为尾节机壳设有下链轮组装配和维修的门孔,由尾节侧门连接,下部链轮组是浮动的,采用杠杆重力张紧或弹簧螺旋复合张紧等方式。这种张紧装置的连接方式为轴穿过壳体上连接的尾节侧门,安装于外置的轴承座上,轴承座和下链轮组随链条的伸缩上下滑动,由于下部轴需要上下移动,因此在尾节侧门开有长圆孔,用带有密封毛毡的密封压板在侧门钢板上来密封该孔,但在运
1 Problem Analysis The lower sprocket structure of the NSE-type plate chain hoist is provided with a door hole for the assembly and maintenance of the lower sprocket assembly in the tail shell. The door is connected by the tailgate side door, the lower sprocket group is floating, Tension or spring spiral composite tensioning and other means. The tensioning device is connected by a shaft passing through the tailgate side door connected to the housing and mounted on an external bearing seat. The bearing seat and the lower sprocket group slide up and down along with the expansion and contraction of the chain. Because the lower shaft needs to be moved up and down , So there is an oblong hole in the side door of the tail section and the hole is sealed with the sealing plate with sealing felt on the side door steel plate,