High-speed EMU power wheel pair axle box device for conversion between standard gauge and wide gauge

Abstract

The invention discloses a high-speed EMU power wheel pair axle box device for the conversion between a standard gauge and a wide gauge. The high-speed EMU power wheel pair axle box device comprises apower axle, wheels, a gear box and an axle box assembly, and is characterized in that a sliding mechanism is mounted on the power axle; the wheels and the axle box assembly are respectively fixed to the sliding mechanism in a sleeving manner; the sliding mechanism is used for driving the wheels to slide on the power axle when the gauge is changed, and transmitting the torque in coordination with the power axle during operation to drive the wheels to rotate; a locking mechanism is arranged between the sliding mechanism and the axle box assembly, and is used for locking and fixing the sliding mechanism before and after the gauge is changed; a bearing seat is mounted at the bottom of the axle box assembly and is used for carrying the vehicle when the sliding mechanism slides; and an axial positioning mechanism is arranged at two ends of the power axle and is used for achieving axial positioning of the axle. According to the high-speed EMU power wheel pair axle box device disclosed by theinvention, the sliding mechanism on the axle allows the wheels to slide laterally on the axle when the gauge is changed, so that the requirement for adapting to the changes in the gauge without stopping the vehicle to replace the bogie is met, the labour and material costs caused by the replacement of bogies during the multinational transportation are reduced and the operational efficiency is improved.

Description

technical field [0001] The invention relates to a high-speed EMU power wheel-to-axle box device, in particular to a high-speed EMU power wheel-to-axle box device capable of realizing quasi-wide gauge conversion. Background technique [0002] Because countries around the world adopt different railway gauge systems (for example, China’s railways are standard gauge with a gauge of 1435mm, and the railways of Russia and most countries in Eastern Europe and Central Asia are wide gauge with a gauge of 1520mm. In the process of cross-border transport Among them, when domestic passenger and freight railway vehicles run from standard-gauge lines to wide-gauge lines, they cannot pass directly, and need to stop and replace bogies that meet the requirements of different gauges. [0003] In the traditional bogie power wheel-to-axle box device, the wheels are installed on the axle through interference fit, and the two are relatively fixed, so the inner distance of the wheel set remains un...

AI Technical Summary

Problems solved by technology

When passing lines with different gauges, it is necessary to stop and go back to the warehouse to replace the bogie that adapts to the new gauge before continuing to operate. There are many problems such as increased manpower and material costs, long time consumption, and low operating efficiency.

Images