METHOD OF TESTING ELECTROMAGNETIC RELAYS ON VIBRATING BENCH Russian patent published in 2018 - IPC G01M7/02 

FIELD: test equipment.

SUBSTANCE: invention relates to test equipment, in particular to methods for testing electromagnetic relays on a vibrating bench, and can be used to test simultaneously ten electromagnetic self-resetting relays. Method includes a sequence of alternate-grouped independent tests for vibration survival and vibration resistance of electromagnetic self-resetting relays along three mutually perpendicular axes of the relays X, Y, Z. Herewith numbering of the relays in the groups follows the order of the relays numbers: 1 group of 4 relays, relays numbers 1, 2, 3, 4; 2 group of 4 relays, relays numbers 5, 6, 7, 8; 3 group of 2 relays, relays numbers 9, 10, wherein first they test the relays for vibration survival in the sequence of groups 1, 2, 3 and the directions of the X, Y, Z axes in each relay group, then they are likewise test for vibration resistance in the same sequence of groups 1, 2, 3 and the directions of the X, Y, Z axes. Tests for vibration survival and vibration resistance are combined, while the vibration resistance test is carried out immediately after the vibration survival test along the very axis of the relay, along which the relay has been tested for vibration survival, and in the vibration survival test the operability of the relay is checked at each position of the relays X, Y, Z, the measurement of the parameters is carried out several times along each axis of the relay. Herewith before the tests immediately to all the 10 relays test cables are soldered and all the 10 relays are fixed in a relay attachment device, which is mounted on the vibrating bench, wherein the measurements and monitoring of the parameters are combined and run several times along each axis of the relay simultaneously for all the parameters and simultaneously for all the 10 relays for one cycle of increasing and decreasing the voltage of only one DC source on the coils simultaneously for all the 10 relays.

EFFECT: technical result is increasing the accuracy of measurements and the accuracy of estimating the parameters of the relays, reducing the labor, energy and resource costs of the vibrating bench, labour intensity and the time of testing, in the uniqueness of determining the relay failure when tested for vibration survival.

1 cl, 5 dwg