Mechanical Analysis Methods of Cantilever Gearbox Housing

作     者：王珏 李朋 宋诗瑶 WANG Jue;LI Peng;SONG Shiyao

作者机构：Department of Information EngineeringLiaoning Economic Vocational Technological InstituteShenyang 110122China 

出 版 物：《Journal of Shanghai Jiaotong university(Science)》 (上海交通大学学报（英文版）)

年 卷 期：2023年第28卷第2期

页      面：233-242页

核心收录：

学科分类：081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学] 

基　　金：National Key Basic Research Program of China(No.2014CB046303) 

主　　题：cantilever gearbox housing mechanical analysis method static fatigue vibration fatigue dynamic characteristics cutting experiment 

摘      要：The mechanical state of cantilever gearbox housing is different from ordinary ones due to the long arm of force caused by cantilever *** mechanical analysis methods either took cantilever gearbox housing as ordinary ones or cantilever *** published papers have specially focused on mechanical analysis method for cantilever gearbox *** paper takes a longwall shearer cutting unit gearbox(SCUG)as an example and the mechanical analysis method is investigated according to the causes of fatigue for *** analysis model is established for finding out regions of static fatigue caused by low-frequency loads,and local resonance analysis is used for finding out regions of vibration fatigue caused by high-frequency *** only bending moment but also torque caused by gear meshing forces is taken into account in the force analysis *** response is obtained from cutting experiment,and dominant frequencies of local resonance are obtained by frequency domain *** element model of SCUG is established,and natural frequencies and strain modes are analyzed for obtaining the main vibration modes corresponding to dominant ***,large stress regions caused by low and high frequency loads are *** show that the worst working condition is oblique cutting,and the stress of B-B in 600 mm cutting depth can reach 166 ***,950 Hz,1250 Hz,and 1400 Hz are dominant frequencies of SCUG(23rd,25th and 27th natural frequencies).Generally,this paper proposes some principles for mechanical analysis method of cantilever gearbox housing.