Power bogies for meter-gauge lines and vehicles for meter-gauge lines

Abstract

The invention provides a power truck for a meter-gage route and a vehicle for the meter-gage route. The power truck comprises two wheel pair assemblies, a framework, a traction motor, a primary suspension device and a secondary suspension device. The secondary suspension device comprises two air springs and a height control valve for controlling the heights of the air springs, the framework comprises two steel pipes which are located between the two wheel pair assemblies, the two steel pipes and the wheel pair assemblies are arranged in parallel, each steel pipe is communicated with an air bag of one air spring, and the two steel pipes are communicated through differential valves. Sealing covers are arranged at the two ends of each steel pipe, the sealing cover at at least one end of each steel pipes is detachably connected to the steel pipe, and sealing pieces are arranged between the sealing covers and the steel pipes respectively. According to the power truck, the high speed travelling requirements of the vehicle are met, safety, stability and comfortable performance of the vehicle are improved, routine maintenance and overhaul can be conveniently carried out, and the problems that when the steel pipes serve as additional air chambers, rusting scrap iron in the steel pipes cannot be cleaned and antiseptic treatment cannot be carried out after the inner walls of the steel pipes are corroded are solved.

Description

technical field [0001] The invention relates to rail vehicle technology, in particular to a power bogie for a meter-gauge line and a vehicle for a meter-gauge line. Background technique [0002] With the rapid development of rail vehicle technology, the development direction of rail passenger cars is gradually shifting from centralized power traction to power decentralized traction, which solves the problem of limited traction power and operating speed of the entire train caused by centralized power traction. EMUs using power dispersion traction have a strong speed-up capability. By adjusting the ratio of EMUs and trailers, EMUs can flexibly adapt to the operation of various speed levels. In addition, the EMU can also meet the demand for large transportation through two trains. [0003] The bogie is one of the most important components in the rational system of the EMU. Whether its structural design is reasonable or not directly affects the running quality, dynamic performa...

AI Technical Summary

Problems solved by technology

[0012] When the secondary suspension of the bogie uses air springs, since the volume of the air chambers of the air springs cannot meet the demand, it is necessary to provide an additional accessory air chamber

In the existing bogie structure, the beam steel pipe is generally used as the accessory air chamber, and the end of the beam steel pipe is sealed with a steel plate, and a small air hole is opened on the sealed steel plate to supply air to the additional air chamber. After the corrosion occurs, it cannot be treated. The rusted iron filings in the steel pipe cannot be cleaned, and there is a risk of clogging the ventilation pipeline.

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