MULTI-STAGE ENERGY ABSORPTION DEVICE

• Main Authors: SHUI, Wenfei, PAN, Deng, LIU, Bicheng, HANG, Huifeng, LUO, Bao, LIU, Yongqiang, SU, Ke
• Format: Patent
• Language: Chinese; English; French
• Published: 07.12.2023
• Subjects: PERFORMING OPERATIONS; PREVENTING DERAILING OF RAIL VEHICLES; RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES ORARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; RAILWAYS; TRANSPORTING; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAILVEHICLES

A multi-stage energy absorption device, comprising an energy absorption element (1), a cutting device (2), a mounting plate (3), a guide driving device (4) and a signal control device (6), wherein the energy absorption element (1) comprises an anti-creeper (11) and a propulsion energy-absorption tube (12); the guide driving device (4) has a cavity with one end open, and one end of the propulsion energy-absorption tube (12) is arranged in the cavity of the guide driving device (4); the mounting plate (3) is in sealed connection with the guide driving device (4); a cutting portion of the cutting device (2) abuts against the energy absorption element (1); and the signal control device (6) is configured to transmit an emergency collision signal from a vehicle system to the guide driving device so as to drive the energy absorption element (1) to pop up. By means of cutting-type energy absorption, the multi-stage energy absorption device can absorb a large amount of energy in a collision while avoiding an excessive