A railway freight car bogie and cross support device therein

Abstract

The invention provides a freight wagon steering frame and a middle crossed supporting device thereof. The freight wagon steering frame can effectively improve strength of a pole body and reduce vibration of the pole body, operational reliability is high, positioning control ability on the steering frame is improved, and the freight wagon steering frame has better dynamical performance. The middle crossed supporting device comprises a first pole and a second pole which are arranged in a crossed way and also comprises a connecting piece, wherein the connecting piece is used for fixedly connecting the first pole with the second pole. The middle crossed supporting device is provided with the connecting piece, so that the first pole is fixedly connected with the second pole, and the first pole and the second pole can not move relatively when a vehicle moves, so that the positioning control ability of the middle crossed supporting device to the steering frame is improved, especially capacity resistant to snakelike deformation can be improved; meanwhile, stabilities of the first pole and the second pole are improved, vibration of the first pole and the second pole when the vehicle moves and abrasion of the pole body are reduced; and besides, strength of the pole body is also effectively improved, structure of the pole body is simplified, and weight of the pole body is reduced.

Description

technical field [0001] The invention relates to the technical field of railway transportation, in particular to a center cross support device of a railway freight car bogie. The present invention also relates to a railway freight car bogie using the above-mentioned center cross bracing device. Background technique [0002] The bogie is an important part of the railway vehicle, which is used to bear the weight of the vehicle body and ensure that the vehicle runs along the line, which directly affects the safety and stability of the vehicle operation. [0003] In order to improve the performance of the bogie, in the prior art, a middle cross support device is usually installed on the basis of the traditional three-piece bogie, so as to increase the critical speed of the bogie’s serpentine instability and the stability of the straight-line running of the truck, and improve the stability of the vehicle. performance. [0004] Please refer to Figure 1-3 , figure 1 It is a top...

AI Technical Summary

Problems solved by technology

[0006] With the above-mentioned center cross support device, when the vehicle is running, both the first rod 11' and the second rod 12' will move in the direction of their extension, so the ability to control the positive position of the bogie is limited; in addition, when the vehicle is running , the first rod 11' and the second rod 12' will also vibrate, which will affect the dynamic performance of the vehicle; at the same time, during the relative movement of the two rods, the rod body will contact and cause wear; moreover, due to the The length of the shaft is longer, in order to improve the strength of the shaft, a larger shaft section is required, which in turn increases the weight of the mid-cross brace

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