A special vehicle body for express container transportation

Abstract

The invention relates to a special vehicle body for rapid container transportation. The special vehicle body for the rapid container transportation is characterized by comprising an intermediate beam assembly, a pair of side beam assemblies, a central beam, a pair of double-lock beam assemblies, a pair of pillow-posterior monolock supporting structures, a pair of pillow beam assemblies, a pair of end beam assemblies and a pair of pillow-anterior monolock supporting structures. According to the special vehicle body for the rapid container transportation, nutation rotational inertia of a vehicle body structure can be effectively increased under the condition that the requirements of the vehicle length are met and accordingly the dynamic stability of a vehicle during high speed driving is improved; the problem that vertical stiffness of the vehicle body is reduced due to that a vehicle distance is extended is solved; meanwhile the end portions of intermediate beams are provided with lower tool holder structures and accordingly the height requirements of buffer installation of a vehicle coupler can be met; the number of vehicle body loaded containers is matched reasonably, meanwhile loading of multiple types of containers in the same vehicle can be achieved, and accordingly the number of vehicle length effectively loaded containers and the transportation efficiency are improved and waste of the vehicle length space is reduced. The special vehicle body for the rapid container transportation can be widely applied to vehicle manufacturing of the rapid container transportation.

Description

technical field [0001] The invention relates to a vehicle body, in particular to a special vehicle body suitable for express container transportation. Background technique [0002] Since 2011, my country has proposed a new railway development strategy, which will further deepen system reforms, transform operating mechanisms, implement diversified operations, and coordinate development of "heavy-load, fast" development, that is, to maintain the status quo of mixed passenger and freight railway lines for a long time . Due to the limited structural design, it cannot be overloaded without limit, so it is necessary to properly supplement some express trucks, which is one of the models. Summarizing the development history and experience of special container vehicles in the past, the dynamic indicators for evaluating running quality such as the serpentine critical speed, stability index and vibration acceleration of the vehicle are most sensitive to the fixed distance of the vehicl...

AI Technical Summary

Problems solved by technology

In order to run fast container cars on passenger and freight mixed railways, in order to maximize the use of line passing capacity, the maximum operating speed of fast container cars should reach 160km / h. In the situation of snaking instability, that is, the vehicle will swing violently laterally when the speed does not reach 160km / h, and this swing will not stabilize from convergence, which will eventually lead to safety accidents such as vehicle derailment

Studies have shown that when the vehicle fixed distance is in the range of 13500mm ~ 14500mm, the critical speed of the vehicle is the highest, but the problem caused by the lengthening of the vehicle fixed distance will reduce the vertical stiffness of the vehicle body

Along with the lengthening of the vehicle, there may be a waste of length space when loading two standard 20ft containers, and the length space is not enough when loading three standard 20ft containers. How to design the strength and rigidity of the long fixed-distance vehicle body and how to reasonably Matching the fixed distance and the number of boxes and comprehensively considering the vehicle's own weight have become technical difficulties for the flat car body specially used for fast container transportation.

Images