从真空辊传动侧螺栓断裂现象对真空辊进行力学分析  

Mechanics Analysis on Suction Roll from the Bolt Fracture Phenomenon on Its Driving Side

作　　者：李志强[1] 孙馥明 Li Zhiqiang;Sun Fuming(Machine Repair Branch of Mudanjiang Hengfeng Paper Co.,Ltd.,Mudanjiang 157013,Heilongjiang,China)

机构地区：[1]牡丹江恒丰纸业股份有限公司机修分厂,黑龙江牡丹江157013

出　　处：《中华纸业》2021年第12期57-59,共3页China Pulp & Paper Industry

摘　　要：针对牡丹江恒丰纸业T2纸机的真空辊传动侧螺栓断裂情况,对真空辊进行力学分析以查找其传动侧螺栓断裂的原因。通过对T2纸机压榨部各辊子之间受力分析及传动侧电机传动的扭矩,计算螺栓所承受的预紧力。分析表明:真空辊运行过程中,因过大的线压力对其产生过大的横向载荷,使螺栓实际所承受的预紧力过大,导致螺栓受力达到屈服极限,从而产生永久变形导致其断裂。Aiming at the breakage of the bolts on the driving side of the suction roll of Mudanjiang Hengfeng Paper’s PM T2 paper machine,mechanical analysis of the suction roll was carried out to find the reason for the bolts on the driving side of the machine.The pre-tightening force of the bolts was calculated by analyzing the force between the rollers in the press section of the T2 paper machine and the torque transmitted by the driving side motor.The analysis shows that during the operation of the suction roll,excessive lateral load is generated on it due to excessive linear pressure,and the actual pre-tightening force on the bolt is too large.This will cause the bolt to reach the yield limit,resulting in permanent deformation and fracture.

关 键 词：真空辊 传动侧 受力分析 螺栓断裂 螺栓预紧力 

分 类 号：TS734.8[轻工技术与工程—制浆造纸工程]