FIELD: transport engineering; road building.
SUBSTANCE: invention relates to devices for operative checking of coefficient of wheel-road adhesion at building and operation of roads with improved pavement and air fields and it can be used also at investigation of road accidents. Proposed device contains tire simulator, propulsion unit and loader. Novelty is that propulsion unit in made in from of rotating electromagnetic fluid clutch provided with control winding whose driving part is connected with clutch drive and driven part, with tire simulator. Device is furnished with clutch adhesive power setting unit connected with clutch control winding, and tire simulator speed counter and recording until with transmits control signal from tire simulator speed counter to clutch adhesive power setting unit.
EFFECT: improved accuracy and reliability, speed of measurement and provision of automatic checking of wheel-road adhesion coefficient.
1 dwg
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