滚珠丝杠用高刚度固定支承牵拉机构的创新设计  

Innovative design of fixed support draw-off mechanism used for high stiffness ball screw

作　　者：孙春霞[1] 

机构地区：[1]常州机电职业技术学院,江苏常州213164

出　　处：《制造技术与机床》2016年第9期130-131,共2页Manufacturing Technology & Machine Tool

摘　　要：在高精度大型、重型数控机床上,用推力轴承+向心轴承+推力轴承组合,固定支承牵拉滚珠丝杠,给滚珠丝杠施加拉应力,补偿丝杠热变形,维持滚珠丝杠导程不变,从而保证机床精度稳定性。On high presion large,heavy numerical control machine tool,thrust bearing and radial bearing and thrust bearing combination is used to fix support and draw-off ball screw,apply tensile stress on ball screw,compensate thermal deformation of ball screw,maintain lead,then the precision stability of machine tool is assured.

关 键 词：固定支承 牵拉机构 轴承 补偿 

分 类 号：TH122[机械工程—机械设计及理论]