Bogie side beam, bogie and rail vehicle

Abstract

The embodiment of the invention provides a bogie side beam, a bogie and a rail vehicle. The side beam comprises: a main side beam plate which is made of an elastic composite fiber material; an auxiliary side beam plate made of an elastic composite fiber material and stacked above the main side beam plate, wherein the middle bottom surface of the auxiliary side beam plate is in contact with the topsurface of the main side beam plate, and buffer gaps are formed between the bottom surfaces of two ends of the auxiliary side beam plate and the top surface of the main side beam plate; and an elastic stopper arranged at the end part of the auxiliary side beam plate and positioned in the buffer gap. When the middle part of the side beam bears a first vertical load, a gap is formed between the elastic stopper and the top surface of the main side beam plate; when the middle part of the side beam bears a second vertical load, the main side beam plate and the auxiliary side beam plate are elastically deformed until the elastic stopper is in contact with the top surface of the main side beam plate; AND the second vertical load is greater than the first vertical load. According to the bogie side beam, the bogie and the rail vehicle, the rigidity supporting requirements of various loads of the vehicle can be met.

Description

technical field [0001] The present application relates to rail vehicle running technology, in particular to a bogie side beam, a bogie and a rail vehicle. Background technique [0002] Rail vehicles are an important transportation link connecting cities, and have gradually become the main means of transportation in cities. Rail vehicles are also the main carrier for cargo transportation. A rail vehicle mainly includes: a car body and a bogie arranged under the car body. The bogie is used to carry the car body and realize the running and steering functions. [0003] The bogie includes structures such as frame, wheelset, traction device, buffer device, etc. The frame includes two side beams extending along the length of the vehicle and a beam connecting the two side beams. The connection between the beam and the side beams is as follows: many kinds of. After studying various forms of bogies, technicians found that there are some technical defects in traditional bogies, such ...

AI Technical Summary

Problems solved by technology

After studying various forms of bogies, technicians found that there are some technical defects in traditional bogies, such as: for example: large self-weight, resulting in large wheel-set force, large wheel-rail wear, and large noise; The frame is rigidly connected, and the vibration damping ability is poor, resulting in greater vibration in the cabin and poor ride comfort; the wheel load reduction rate is large, and the vehicle has a greater risk of derailment when passing through pits, and the safety is low; anti-rolling Poor capacity makes the car prone to rollover, insufficient vertical buffer capacity leads to large car vibration and poor ride comfort, high self-weight leads to low traction efficiency, and unreasonable component installation layout leads to low assembly efficiency, etc.

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