DEVICE FOR MEASURING THE BRUSH PRESSURE ON ELECTRIC MACHINE COLLECTOR Russian patent published in 2019 - IPC H01R39/58 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the field of electrical measuring technique, in particular to devices for measuring brush strokes on a collector directly on an electrical machine. Device for measuring the brush pressing on the collector of electrical machines comprises a brush holder with a pressure finger, a brush, two annular magnetic circuits with excitation windings and measuring, located in the body of the force sensor, rigidly connected with a brush and installed in the brush holder of the machine against the stop with the collector, one annular magnetic circuit through the metal ball and the protective spring is connected to the movable part of the device cooperating with the pressure finger, four-linked joint with balls in the nodes, one annular magnetic circuit is disposed together with a hinged connection within another annular magnetic circuit in mutually perpendicular planes, two metal balls are connected to the outer surface of one annular magnetic core along the action line of the pressure finger, and two other metal balls in the perpendicular plane are connected to the inner surface of the other annular magnetic core, the protective spring is made flat.

EFFECT: increase sensitivity and accuracy of measurement.

1 cl, 1 dwg