非圆柱配合面液压锁紧轴套的锁紧扭矩分析  

Locking torque analysis of hydraulic locking sleeve with non- cylindrical contact surface

作　　者：王乾勋[1] 闫明[1] 孙淑霞[1] 邵诗严 

机构地区：[1]沈阳工业大学机械工程学院,辽宁沈阳110870

出　　处：《制造技术与机床》2015年第8期74-77,共4页Manufacturing Technology & Machine Tool

基　　金：沈阳市工业科技攻关项目(F12-069-2-00)

摘　　要：为提高液压锁紧轴套的锁紧扭矩,提出了一种非圆柱配合面液压锁紧轴套,即在与轴套相配合的接触面上,将转轴圆柱加工出若干平行于轴线方向内切扁面,形成非圆柱配合表面,转轴的圆柱配合表面仍然可以被轴套锁紧而产生摩擦扭矩,而在转轴的非圆柱配合表面处由于轴套的变形不均匀性,会对转轴产生机械制动效果,从而增加锁紧扭矩,缩短了制动时间。做出7种不同切扁面深度的轴,每种切扁面深度对应有2、3、4、5、6个切扁面数量,通过有限元分析软件ANSYS和实验,分析了切扁面数量以及切扁面深度对锁紧扭矩的影响,发现当切扁面数量为4,切扁面深度为2 mm左右时,锁紧力矩出现最大值。Presents a kind of non - circular contact surfaces hydraulic locking sleeve, several sections generated a- long the shaft axial directionon the contact surface with the locking sleeve, the cylindrical contact sur- face of the shaft can still generate locking torque under the frictional effect between the shat and the sleeve,and due to deformation inhomogeneity bushings on the non - cylindrical contact surface of the shaft, it will produce mechanical braking effect on the shaft, thereby increasing the locking torque and shorten the braking time. Making seven different depth cutting surface, and the number of each cut sur- face is divided into 2,3, g, 5,6 five types; uses finite element analysis software ANSYS and experi- ments, analyzes the impact on the locking torque under different number of locking section and depth, and finds that when the number of cutting surface is 4, the depth of the cutting surface is about 2 mm, there will be a maximum locking torque

关 键 词：液压锁紧轴套 弹性变形 转动自由度 非圆配合面 深度 数量 有限元 实验 

分 类 号：TG502.1[金属学及工艺—金属切削加工及机床]