TEST BENCH SERVO-HYDRAULIC FOR APPLICATION TO TESTED OBJECT OF STATIC TENSILE LOADS IN FIVE DIRECTIONS: IN FOUR DIRECTIONS IN HORIZONTAL PLANE (ALONG TWO MUTUALLY PERPENDICULAR DIRECTIONS IN DIFFERENT DIRECTIONS) AND IN ONE DIRECTION IN VERTICAL PLANE Russian patent published in 2019 - IPC G01N3/08 

FIELD: test equipment.

SUBSTANCE: test bench comprises four identical loading devices for application of loads in a horizontal plane in two mutually perpendicular directions and fixed to a power floor, each of which consists of a post, a power hydraulic cylinder, which rod with a force sensor attached to it is articulated with the test object, and housing is fixed on slider, located in vertical T-shaped groove post, hydraulic unit, fixed on post and consisting of fine filter and servovalve, controlling hydraulic cylinder, hydraulic cylinder displacement sensor, slide movement sensor with hydraulic cylinder, and also includes vertical hydraulic cylinder for application to tested object of load in vertical direction, rod of which with a force sensor attached thereto is articulated with the test object, and the housing is hinged to the portal carriage, a hydraulic unit similar to hydraulic units of loading devices, servo-valve of which controls vertical hydraulic cylinder, and also includes pump unit containing high-pressure pump, safety valve, manometer for pressure recording in pressure main line. To apply tensile loads to test object in four directions in horizontal plane four identical loading devices are used, fixed to power floor, which hydraulic cylinders with the help of worm-screw drive can automatically be set in height in position required for joint with tested object.

EFFECT: reduction of labour intensity, reduction of preparatory time and simplification of test bench design.

1 cl, 4 dwg