| 摘要 |
FIELD: measurement technology.SUBSTANCE: invention relates to devices intended for determination of adhesion properties of road and aerodrome pavements. Device comprises working element in the form of a simulator interacting with coating (9) of automobile tire, vertical loading device, for example, pneumatic cylinder (1), system of measuring vertical and tangential forces with load tie-rods (6) and (30), as well as a liquid supply system on the coating afore working element in the form of a pipeline (43) with valve (42) connected to the reservoir with liquid, supplemented with a dispenser (45). At that the simulator (9), consisting of rigid plate (14), damping element (12) and tread rubber, is secured to the vehicle frame. System for measuring occurring at sliding of the simulator (9) vertical and tangent forces comprises dynamometric traction (6) and (30). At sliding of the simulator into the zone of its contact with coating, fluid is supplied by means of the dispenser (45), consisting of upper air cavity (46) and lower cavity (47) for liquid.EFFECT: technical result is in provision of possibility of time reduction for one measurement of friction coefficient, that increases efficiency and reduces the amount of liquid required for measurements.6 cl, 3 dwg |
