摘要
针对一种新型含过渡齿套的鼓型齿轮副结构,在三维建模软件中建立鼓型齿轮副模型,将网格划分后的模型导入有限元软件ANSYS中分析,考察鼓型齿轮副的啮合状态和力学特性,探讨压力角对鼓型齿轮副啮合力学性能的影响。结果表明:传统齿轮副结构中最大应力发生在内齿轴套上,最大等效应力为1115.30 MPa,新型齿轮副结构中最大应力发生在过渡齿套的内齿面上,最大等效应力为1097.00 MPa;与传统齿轮副结构相比,新型结构中外齿轴套和内齿轴套上的最大等效应力均有降低,内齿轴套上的最大等效应力降幅为63.59%。新型结构中,随压力角增加外齿轴套上的应力集中位置由齿根中心向两侧转移,外齿轴套与过渡齿套内齿的啮合区域相应增大,过渡齿套内齿上的应力降低;在给定压力角范围内,内齿轴套均能保持较小的等效应力和应变,这对制造成本高的轧辊端内齿轴套具有较好的保护作用。
Aiming at a late-model of crown gear pair with transition gear sleeve,the crown gear pair model was established in the three-dimensional modeling software.The meshed model was imported into the finite element software ANSYS for analysis,and the meshing state and mechanical properties of crown gear pair were investigated,and the influence of pressure angle on the meshing mechanical properties of crown gear pair was discussed.The results show that the maximum stress in the conventional gear pair structure occurs on the internal gear shaft sleeve,and the maximum equivalent stress is 1115.30 MPa.The maximum equivalent stress in the new gear pair structure occurs on the internal tooth surface of the transition gear sleeve,and the maximum equivalent stress is1097.00 MPa.Compared with the conventional gear pair structure,the maximum equivalent stress on the external gear shaft sleeve and the internal gear shaft sleeve of the new structure is reduced,and the maximum stress on the internal gear shaft sleeve is reduced by 63.59%.In the new structure,with the increase of pressure angle,the stress concentration position on the external gear shaft sleeve shifts from the center of tooth root to both sides,the meshing area between the external gear shaft sleeve and the internal teeth of the transition gear sleeve increases correspondingly,and the stress on the internal teeth of the transition gear sleeve decreases.In the given pressure angle range,the internal gear shaft sleeve can maintain small equivalent stress and strain,which has a good protective effect on the internal gear shaft sleeve at the roll end with high manufacturing cost.
作者
张志伟
夏清华
杨晓红
李天超
葛燕飞
王孝义
张国涛
ZHANG Zhiwei;XIA Qinghua;YANG Xiaohong;LI Tianchao;GE Yanfei;WANG Xiaoyi;ZHANG Guotao(School of Mechanical Engineering,Anhui University of Technology,Maanshan 243032,China;Anhui Taier Heavy Industry Co.,Ltd,Maanshan 243000,China)
出处
《安徽工业大学学报（自然科学版）》
CAS
2022年第3期289-297,共9页
Journal of Anhui University of Technology（Natural Science）
基金
安徽省科技重大专项项目(201903a05020054)
国家自然科学基金项目(52005005)。
关键词
齿轮副
压力角
啮合
力学性能
应力集中
gear pair
pressure angle
meshing
mechanical properties
stress concentration
