DEVICE FOR STRENGTH TEST OF TUBULAR SPECIMENS Russian patent published in 1998 - IPC

FIELD: examination and testing of parts and materials. SUBSTANCE: coaxial holes 2, 17 and 20 are made in base 1, flange 14 of loader 12 and on bottom of sleeve 18, respectively. Bush 8 has blind recesses 9, and loader 12 is provided with vertical 15 and spiral recesses. Device is fitted with turning bush 21 positioned on bush 8. Projections 22 of turning bush contact blind recesses 9 of bush 8. Thrust bush 25 with axles 28 contacting side walls of recess 15 or 16 of loader 12 is installed in space formed by external surface of loader 12 and internal surface of turning bush 21. Vacant ends of axles 28 carry radial bearings 29, external races of which contact side walls of vertical recesses 24 of turning bush 21. Thrust bearing 30 carrying force support 31 is positioned on cylindrical projection 27 of thrust bush 25. Device is also provided with studs 32 and 33 designed to prevent loader 12 and sleeve 18 from turning relative to base 1. EFFECT: higher test results. 1 dwg