Anti-collision device for step type multistep air compression energy absorption locomotive
A technology of gas compression and energy-absorbing locomotives, applied in the field of rail vehicles, to overcome destructive collisions and ensure safe operation
Inactive Publication Date: 2014-06-04
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
Although the improvement of active safety protection measures for rolling stock can reduce the incidence of accidents, collision accidents of rolling stock are still inevitable. Therefore, passive safety protection technology has attracted more and more attention from researchers.
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[0010] The present invention will be further described below in conjunction with drawings and embodiments.
[0011] combine figure 1 with figure 2 It can be seen that the present invention includes devices including: cylinder 6, cylinder head 3, piston rod 2, piston 16, 20, 23 are sleeved on the piston rod 2, and then the whole piston (comprising the piston rod) is assembled in the cylinder 6, A sealing piece 5 is added between the cylinder head 3 and the cylinder 6 and connected by fixing bolts 4 . The piston can freely slide left and right in the cylinder. Pistons 16, 20, 23 are provided with through holes, and bursting discs 17, 19, 21 are installed on one side of the through holes, and the peripheries of the bursting discs and the piston are tightly pressed on the piston by the compression ring 24 and the fastening bolt assembly 22. Cylinder end is provided with cushion pad 14, is provided with cushion pad 18 at one-stage cylinder, two-stage cylinder, three-stage cylin...
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The invention discloses an anti-collision device for a step type multistep air compression energy absorption locomotive, comprising a compressed air cylinder-piston pair and an additional gas cylinder which are connected in series, wherein the compressed air cylinder is provided with at least more than two cylinder bodies; a plurality of pistons arranged on a piston rod are arranged along the central axle of air cylinders, each of which is provided with a plurality of cylinder bodies, and each piston and a corresponding air cylinder form a pair of air cylinder-piston mechanisms; each piston is provided with a normally closed through hole on which a bursting disk is covered, the bursting disks covered on the through holes in all the pistons on different positions have incremental compression strengths, and the compression strength of the bursting disk on the through hole of the piston near the bottom end of the piston rod is highest; and the additional gas cylinder is communicated with gas circuits on the side walls of cylinder bodies near the bottoms of all the air cylinders. The collision impact damage process of the locomotive is converted into compressed air energy storage and bursting energy release processes, thus, the locomotive damage caused by locomotive collision is effectively reduced, and the quantitative conversion and the release of the collision impact energy are realized.
Description
technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a protection device for energy absorption and effective energy release of rolling stock collisions. Background technique [0002] Rolling stock collision accident is one of the most serious accidents in rolling stock operation. Although improving the active safety protection measures of rolling stock can reduce the accident rate, the collision accidents of rolling stock are still inevitable. Therefore, the passive safety protection technology has been paid more and more attention by researchers. High-speed rolling stock adopts passive protection technology to protect the safety of passengers and reduce accident losses. From a technical point of view, in order to improve the crashworthiness of the vehicle, it is necessary to make the secondary parts of the vehicle undergo a large plastic deformation according to human will in the event of a collision accident, and only prod...
Claims
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IPC IPC(8): B61F19/04
Inventor 柳忠彬肖守讷张卫华阳光武
Owner SOUTHWEST JIAOTONG UNIV