DEVICE WITH PULSE LOAD FOR SURFACE ENDURANCE TESTING Russian patent published in 2014 - IPC G01N3/56 

FIELD: machine building.

SUBSTANCE: device is designed for determination of plastic deformations and wear of reinforced materials at testing flat surfaces of parts for the surface endurance by determination of plastic deformations and wear of reinforced materials. The device comprises a rotating rolling unit with deformable bodies, a separator and a sample being tested, it is also fitted with a hydraulic cylinder with a striker set in it, a waveguide made so that a static load can be applied to it as well as a periodical pulse load can be applied with the help of the striker, a hydraulic pulse generator for the hydraulic cylinder power supply. The waveguide is movably coupled with the rolling unit by a thrust bearing, the said unit is rotated by an independent drive set in the casing and consisting of an electric motor, a V-belt drive and a shaft, the rolling unit is installed on one shaft end by splines, the pulley of the V-belt drive - on the other end, a bearing of a supporting unit - in the middle part of the shaft.

EFFECT: expanded manufacturing capabilities of tests and provision of conditions for their performance similar to the actual operation conditions of vibration machine part samples, increased efficiency, possibility to affect the contact-fatigue wear of rolling and slipping ratio.

7 dwg, 1 tbl, 1 ex