Options for realization of the mechanism of compensation for the fixtural accumulation of the drive component discontinuation and its application for cargo cars and vehicles

Abstract

In the paper influence of the wear of the friction plates of the driven disc of the clutch on it’s characteristics, that is speed and precision are accent. It is also noted the importance of take into consideration the measure of the wear of the friction plate of the clutch’s disk in the context of automation of the control process of the driveline parts of the car, an especially clutch. Also, the mechanism of compensation for wear of friction plate is considered, which will allow obtaining a design that, during the all period of operation, will meet the basic requirements for clutch’s drive, regardless of the state of the friction plates of the driven disk. The analysis of known methods of compensating wear of friction plate clutch in the mechanism of clutch control is given. It is noted that existing variants of mechanisms of compensation of wear of friction plate are used mainly in the design of cars and implemented directly in the clutch mechanism. The proposed designs and describes the principle of the mechanisms of compensation of wear of friction plate, which are adapted to work as part of the drive for the coupling of trucks and buses. Wherein, their essential difference from the known designs is that they are part of the clutch’s drive, namely the pneumatic cylinder of the amplifier. Both offered variants of mechanisms of compensation of wear of friction plate of vehicle are realized on the basis of the previously known technical solutions: a free-wheel unit and a hydraulic compensator. In the case of using in a design of the pneumatic cylinder of the free-wheel unit, was noted an imperfection in the form of high contact stress in the zone of contact of the ball, to rod and conical surface of the piston, as well as sufficiently large overall dimensions of the compensation mechanism. The version of the mechanism with a hydraulic compensator, which is installed between the two parts of the rod of the clutch’s amplifier, looks more promising and has no obvious imperfections, except for the increase in the number of parts. Both of these solutions have an undeniable advantage - they can be realized on pneumatic clutch’s amplifiers that manufactured serial.