Experimental Investigation of Pull and Energy Characteristics of Generator Drive Unit to Be Used with Container Flats” Three-Piece Bogies

To adapt container flats for transportation of high-capacity reefers (HCR) there was developed stand-alone power supply system (SAPSS) to be mounted on the flatcar three-piece freight bogie. Such a system ensures power supply to HCR all over the travel route by rail. One of the SAPSS key components proves to be generator drive unit comprising generator, V-belt transmission and single-reduction gear unit with dissectible driving gear mounted in the midpart of the wheelset axle. To confirm workability of the generator drive unit and obtain its pull and energy characteristics there were conducted rig tests of its prototype using for this purpose exerciser developed by the VNIIZhT design center. The exerciser was equipped with instrumentation systems capable to determine V-belt tension by the tension screw force value and assess slipping by rotating speeds of the driving and driven V-belt pulleys. Rig tests implied container flat running at various speeds. Three SAPSS loading modes were tested inclusive of open circuit operation. There was purposely developed testing procedure, allowing to assess slipping of the V-belt transmission within the accuracy of 0.01 %. Experimental data were collated with calculation results obtained by the authors beforehand. The SAPSS prototype tests outcomes evidence that generator drive unit is capable to support the system operation at power levels up to 16±1 kW within the container flat running speed range from 30 to 132 kph.

stand-alone power supply system, high-capacity reefer, generator drive unit, tension force, tractive ability, slipping, thermal regime

1. Kargin V. G., Naumenko S. N., Burov V. V., Chuvashov I. N., Samoshkin S. L. Razrabotka generatorno-privodnoy ustanovki dlya trekhelementnykh gruzovykh telezhek fitingovykh platform [Development of generator drive installation for container flats’ threepiece bogies]. Vestnik VNIIZhT [Vestnik of the Railway Research Institute], 2014, no. 5, pp. 44 – 49.

2. Naumenko S. N., Teymurazov S. N., Prosekov A. V. Sistema avtonomnogo elektrosnabzheniya zheleznodorozhnykh gruzovykh fitingovykh platform ot osi kolesnoy pary [The system of autonomous power supply of rail freight flatcars from the axis of wheel pair]. Vagonnyy park, 2013, no. 1 (70), pp. 31 – 32.

3. Kargin V. G., Naumenko S. N., Kuzyara S. V., Sukovatin M. I., Burov V. V. Autonomous power supply system of railway cars and platforms. Utility patent № 151404. Moscow, Rospatent, 2014. (in Russ.).

4. A system of the autonomous power supply of railroad cars or platforms driven by a wheel pair axle. Pub. 09.10.2014, no WO/2014/163529. PCT/RU2013/000891.

5. Makarov R. A., ed. Tenzometriya v mashinostroenii [Tensometry in mechanical engineering]. Moscow, Mashinostroenie Publ., 1975. 288 p.

6. Samoshkin S. L. Issledovanie vozmozhnosti povysheniya tyagovo-energeticheskikh pokazateley seriynykh klinoremennykh privodov generatorov passazhirskikh vagonov [Investigations into the possibility of improving traction-energy parameters of commercial wedge-belt drives for generators of passenger cars]. Tyazheloe mashinostroenie, 1999. no. 3, pp. 32 – 36.

7. Samoshkin O. S. Sovershenstvovanie generatorno-privodnykh ustanovok passazhirskikh vagonov [Improving the generator- drive systems of passenger cars]. Zheleznodorozhnyy transport, 2011, no. 10, pp. 56 – 59.

8. Horovitz В., Gheorghiu N. Messung der Vorspannung bei Riementrieben [Measurement of bias in belt drives]. Maschinen maret, 1979, no. 11, pp. 177 – 182.

9. Lysakows E., Ezopa T. Analyse der Riemenbelastangen im Mehrkeilrimengetriebe [Analysis of the belt rods in the V-belt transmission]. Maschinenbautechnik, 24, no. 2, pp. 78 – 80.