Bogie side members, bogies and rail vehicles

Abstract

The embodiment of the present application provides a bogie side beam, a bogie and a rail vehicle, wherein the side beam includes: a main side beam plate made of an elastic composite fiber material; an auxiliary side beam plate made of an elastic composite fiber material, It is stacked above the main side sill; the middle bottom surface of the auxiliary side sill is in contact with the top surface of the main side sill, and there is a buffer gap between the bottom surfaces of both ends of the auxiliary side sill and the top surface of the main side sill; the elastic stop The stopper is arranged at the end of the auxiliary side sill plate and is located in the buffer gap; when the middle part of the side sill bears the first vertical load, there is a gap between the elastic stopper and the top surface of the main side sill plate; When the middle part of the side sill bears the second vertical load, the main side sill and the auxiliary side sill are elastically deformed until the elastic stop contacts the top surface of the main side sill; the second vertical load is greater than the first a vertical load. The bogie side beams, the bogie and the rail vehicle provided in the embodiments of the present application can meet the rigid support requirements of various loads of the vehicle.

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. After studying various forms of bogies, technicians found that there are some technical defects in traditional bogies, such as:...

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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