The invention discloses a crushing pipe anti-bending device for a motor train unit. The device comprises a base, a guide rod, an expansion cone, a contraction ring, an inner sleeve, a middle sleeve and an outer sleeve. The right end of the middle sleeve makes contact with the expansion cone and the contraction ring. The guide rod is in contact with the expansion cone and the inner sleeve. A positioning rod makes contact with a limiting hole. An initial expanding induction structure is arranged at the right end of the middle sleeve in order to reduce the initial triggering peak force of a crushing pipe and can be matched with extrusion of the contraction ring. Plastic deformation of the middle sleeve is reutilized, energy is absorbed through two times of plastic deformation, and the utilization rate of materials is increased. The stability of the expansion cone 4 is enhanced, and instability of the crushing pipe can be effectively prevented.
一种动车组用压溃管抗弯装置,包括包括基座、导杆、膨胀锥、收缩环、内套筒、中套筒和外套筒,中套筒右端分别与膨胀锥和收缩环接触,导杆与膨胀锥、内套筒接触,定位杆与限位孔接触,中套筒右端有初始扩径的诱导结构,目的是降低压溃管初始触发的峰值力,并能够配合收缩环的挤压,本装置对中套筒的塑性变形进行了二次利用,通过产生两次塑性变形吸收能量,提高了材料的利用率。并且增强了膨胀锥4处的稳定性,能够有效防止压溃管失稳。
Crushing pipe anti-bending device for motor train unit
一种动车组用压溃管抗弯装置
2020-04-10
Patent
Electronic Resource
Chinese
IPC: | B61G Kupplungen besonders ausgebildet für Eisenbahnfahrzeuge , COUPLINGS SPECIALLY ADAPTED FOR RAILWAY VEHICLES |
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