BENCH FOR FATIGUE TESTS Russian patent published in 2020 - IPC G01M5/00 G01N3/36 

FIELD: test equipment.

SUBSTANCE: invention relates to the field of test equipment and can be used for various types of tests of units, assemblies, joints, etc., of helicopter, automobile and other equipment. Fat testing test bench comprises frame (1) with hydraulic cylinder (2) fixed on it, power cavities (5, 6) of which are connected by means of pipelines or high pressure hoses (8) to electrohydraulic booster (7), and in pressure pipeline (11) electromagnetic valve (12) is installed. In pipeline (11) between electrohydraulic booster (7) and solenoid valve (12) there installed is a slide valve pressure valve (13) and throttle valve (30). At that, outlet opening (21) of pressure valve (13) is connected to control valve (22) of pressure valve (13) by means of pipeline (33), and inlet hole of pressure valve (20) is connected through throttle valve (30) to high-pressure hole (9) of electrohydraulic booster (7).

EFFECT: smooth pressure build-up, elimination of impact overload of samples, high accuracy of load maintenance.

3 cl, 3 dwg