Wedge Thread Installation Wear and Solution Measure
The contact mode between the bolt tooth tip and wedge thread bevel line of wedge thread connection structure has the defects of line contact and thread wear,which has an adverse effect on the repeated use of wedge thread.By lubricating the surface of the bolt(the thread is coated with grease or the surface is coated with MoS2 as a whole),reducing the installation torque,reducing the strength of the screw sleeve and other ways to change its installation state and carry out the torsional and tensile performance tests under different installation status,the torsional and tensile coefficient,preload and thread wear were studied experimentally.The test result can solve the problem of serious installation wear of wedge thread and improve the reliability and connection quality of wedge thread connection structure.
wedge threadthread weartorsional and tensile performanceinstallation status