Railway freight car underframe with large circular holes

• Main Authors: LONG JIANGUO, ZHANG CHAODE, ZHAO SHOUXIN, XUE HAILIAN, YANG FAXIAN, LI JUNSHENG, HUANG RUI, JIANG MINGXING, LIU BING, YANG YANPING, LI GAOLIANG, CHENG HUIXIA, ZHOU JIONG, YANG SHIWEI, ZHONG ZHIYONG, PENG LIAO, SHU MEI, HUANG PAN, ZHANG XIANFENG, YUAN LIANG, LIU CAN, ZHANG RUIGUO, YANG QINGFAN, XU ZHI, LI DONG, XIE LIN
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2020
• 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

The invention discloses a railway freight car underframe with large circular holes. The invention belongs to the technical field of rail wagons. The railway freight car underframe comprises a hollow frame; a horizontal plane is arranged on one side of the hollow frame; the other side is in a shape with two small ends and a large middle part along the longitudinal direction; a plurality of cross beams are arranged in the internal space of the hollow frame; each cross beam is perpendicular to the longitudinal direction of the hollow frame and is provided with a through hole; large circular holesfor personnel to pass through are formed in the cross beams on the two sides of the underframe; and the reinforcing cylinder on the cross beam reinforces the periphery of the large circular hole, sothat the strength of the cross beam is guaranteed, and the purpose that an operator can smoothly enter the position below the middle section of the bottom frame to install, maintain or overhaul the vehicle bottom equipment und