Detachable passenger car bottom cross beam

The utility model relates to the technical field of passenger cars, in particular to a detachable passenger car bottom cross beam which comprises a middle cross beam with flange plates at the two ends, the two ends of the middle cross beam are connected with end cross beams through the flange plates, and the cross sections of the middle cross beam and the end cross beams are round. Cross-shaped reinforcing ribs are arranged in the middle cross beam and the end cross beams, the end cross beams at the two ends of the middle cross beam are symmetrically arranged, a traction groove is formed in the middle cross beam, and the detachable passenger car bottom cross beam is high in structural strength, high in assembly efficiency and convenient to detach. 本实用新型涉及客车技术领域，具体涉及一种可拆卸式客车底部横梁，包括两端带有法兰盘的中部横梁,所述中部横梁两端均通过法兰盘与端部横梁连接，所述中部横梁和端部横梁的横截面均为圆形，所述中部横梁和端部横梁的内部设置有十字形加强筋，所述中部横梁两端的端部横梁对称布置，所述中部横梁上设置有牵引槽，本申请的可拆卸式客车底部横梁，结构强度高，装配效率高，便于拆卸。