DEVICE OF MEASUREMENT OF COEFFICIENT OF ADHESION OF WHEELS WITH AIRFIELD PAVEMENTS Russian patent published in 2017 - IPC G01M17/13 E01C23/07 G01N19/02 

FIELD: measurement technology.

SUBSTANCE: device of measurement of the coefficient of adhesion of the wheels with the airfield pavement includes a support frame resting on two support wheels, linkage suspension with a measuring wheel, the lever with the independent cargo, spring shock absorber and a damper connected to the suspension by means of the first bearing assembly, brake generator, chain drive, a current sensor braking, an angular velocity sensor measuring wheel and one of the load-bearing wheels, controlled three-phase rectifier, load resistance, strain gauge system consisting of a strain gauge and load cell signal conditioning unit, computer control and indication system and sliding automatic control (inhibition) of the measuring wheel. The device is also introduced the thrust ball bearings and the ends of the auxiliary beam, bonded to the base frame by the second bearing support. The base of levered suspension of measuring wheel is attached to the supporting beam by means of the third bearing assembly. Brake generator is mounted on the auxiliary beam and its associated shaft chain drive with a measuring wheel hub. The strain gauge is embedded in a console, fixedly mounted at one end on the support frame, and the free end of the load cell is connected to the console with the supporting beam via a thrust ball bearings at the ends so that the longitudinal axis of the horizontal rod and lies in a vertical longitudinal plane of symmetry of the supporting frame.

EFFECT: invention increases the accuracy and stability of measurement of friction coefficient.

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