According to the theory of fracture mechanics and bonding contact,aiming at bonding force direction of liner for self-lubricating spherical plain bearings is inner spherical surface normal direction of bearings,the mapping rela-tion between bonding force and peeling force of liner is given,and a peeling way for liner of new type constant peeling angle is put forward,which can avoid the peeling force fluctuation caused by the stick-slip effect of variable peeling angle.The scale compensation for elastic deformation of liner in the peeling is analyzed.The new type constant peeling angle detector for peeling force of liner is built.%根据断裂力学和粘结接触理论，针对自润滑关节轴承衬垫粘结力方向为轴承内球面法向的情况，给出了衬垫粘结力与衬垫剥离力的映射关系，提出了一种新型恒剥离角的衬垫剥离方式，避免了由变剥离角产生的粘滑效应所引起的剥离力波动。分析衬垫剥离过程中衬垫弹性变形的尺度补偿，构建了新型恒剥离角自润滑关节轴承衬垫剥离力检测装置。
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