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目前,铁路用来运送大吨位的冷藏箱,使用的是由12辆平板车和发电车组成的专门车组。众所周知,要装满12辆冷藏箱运送车辆的货物,一般要等待很长时间。如果只使用其中部分集装箱,就会造成支出的增加。这是因为发电车的运营支出不会由于集装箱的工作数量减少而下降。降低用铁路运送大吨位冷藏集装箱的费用的途径之一是用有自主供电系统装备的组合式平板车组。这种平板车组的电源来自轮对轴上的发电装置。本文将描述供跨装式平板车使用的、由三构件组成的货车转向架轮对车轴提供动力的自主供电系统。组成自主供电系统的有:与轮对车轴中部连接的两级减速一三角皮带传动装置、名义功率为20 kW的同步三相发电机、ПчT-04型持续输出功率15 kW的变频器、紧固元件、在组合平板车构架下面的发电传动装置的悬挂装置以及电线的分布管和紧固件。当平板车的运行速度为30~120 km/h时,自主供电系统能确保向冷藏平板车供电。作者进行了三角皮带传动装置的减速极限能力的评估计算,并进行了发电机-传动装置试验样机的台架试验。发电机-传动装置的极限牵引能力的计算分析表明,在所选取的动力参数下,平板车组的运行速度为30~120 km/h,且当皮带与皮带轮之间的摩擦因数大于0.3时,轮对轴上就会保证有20 kW的机械能在发电机上变为电能输出。发电机-传动装置试验样机的试验台试验表明,在平板车所有的运行速度范围内,总电功率为16 kW时,它能保证2台标准冷藏装置(2只集装箱)正常工作。此时,对于最为苛刻的工况(在需要最大功率情况下的运行速度为最小)来说,皮带传动的打滑不超过2%,该值符合俄ΓOCT1284标准对皮带传动的要求。
Currently, railroads are used to transport large tonnage of freezers using a dedicated fleet of 12 flatbed and generator cars. As we all know, it is generally necessary to wait for a long time to load 12 refrigerated cargo containers. If you use only some of the containers, it will result in an increase in spending. This is because the operating expenses of generating vehicles will not be reduced due to the reduction in the number of containers. One of the ways to reduce the cost of transporting large tonnage containers by rail is to use a combination flatbed unit equipped with an autonomous power supply system. The flatbed unit’s power comes from the generator on the wheel axle. This article will describe an autonomous power supply system for the axles of a truck bogie wheel that is used by a straddle-type flatbed truck and consists of three components. Composed of autonomous power supply systems are: two-stage deceleration a V-belt drive connected to the middle of the wheelset axle, a synchronous three-phase generator with a nominal power of 20 kW, a ПчT-04 inverter with a continuous output of 15 kW, Components, suspension of a power transmission assembly under a combination pallet truck frame, and distribution pipes and fasteners for wires. When the speed of the flatbed is 30 ~ 120 km / h, the self-powered system can ensure the power supply to the refrigerated flatbed. The author carried out the evaluation and calculation of the decelerating ultimate capacity of the V-belt drive and carried out the bench test of the generator-transmission test prototype. The calculation and analysis of the ultimate traction capacity of the generator-transmission device shows that under the selected dynamic parameters, the speed of the flatbed group is 30 ~ 120 km / h, and when the friction coefficient between the belt and the pulley is greater than 0.3, the wheel On the shaft will ensure that 20 kW of mechanical energy in the generator into a power output. Test rig tests of the generator-gearing prototype showed that 2 standard chillers (2 containers) were guaranteed to work properly at a total electrical power of 16 kW at all operating speeds of the flatbed. At this point, for the most demanding conditions (in the case of maximum power required to run the minimum speed), the slip of the belt drive does not exceed 2%, the value in line with the Russian ΓOCT1284 standards for belt drive requirements.