Traction sleeper device

Abstract

The invention provides a traction sleeper device comprising a traction beam and sleeper beams; the sleeper beams are symmetrically arranged at both sides of the traction beam; the sleeper beams comprise web plates and lower cover plates arranged below the web plates; the traction sleeper device is characterized in that the sleeper beams also comprise reinforcing rib plates; the reinforcing rib plates are arranged on the web plates; transverse and longitudinal reinforcing rib plates and side-bearing reinforcing rib plates are added to the positions of the web plates of the sleeper beams of the traction sleeper device so as to form a box-shaped integral bearing structure, and the defect of high stress level of the joint of the web plates and a traction beam of a traction sleeper structure of a tank car of a traditional railway in China under the working condition of longitudinal and vertical loads is overcome; and moreover, a supporting post of a short side pipe is arranged, an original supporting post structure of a side pipe is changed, the center of the circle of the supporting post of the short side pipe is arranged along a radial direction, the wrap angle is increased, the diameter is increased, the stress concentration level of the nearby position of the upper end of the supporting post of the side pipe of an original structure is lowered, car jacking beams are arranged and are in grouped welding to form a box-shaped structure with favorable stress, and the stress concentration level of the nearby position of the upper end of the supporting post of the side pipe of the original structure is lowered.

Description

Technical field [0001] The invention relates to a pillow holding device of a tank car. Background technique [0002] At present, the railroad tank car in my country is widely used in the traction sleeper structure without center beam. The transmission path of the longitudinal load on the single tank car is: one end coupler-sleeper device-lower part of the tank-the other end sleeper device-the other end coupler . While transmitting the longitudinal load between the vehicles, the pillow device also supports the tank and bears the vertical load. Take the 70-ton-class railway tank car as an example. In my country's railway freight car assessment standards, the maximum longitudinal load is 250 tons, and the vertical static load is 70 tons. At the same time, it must bear the effects of saturated vapor pressure and liquid shock pressure. bad. [0003] The harsh working conditions have brought a greater impact on the force of the traction device, and there are mainly the following two pro...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of the low reliability of the welding seam connecting the traction beam and the web of the bolster beam and the stress concentration near the upper end of the side pipe pillar in the existing technology, the present invention provides a tank truck pulling pillow device

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