The invention discloses a light aluminum alloy chassis of a light rail vehicle body which comprises a transverse beam and a longitudinal beam and further comprises a splicing piece and a fastening piece, the splicing piece is provided with a transverse clamping groove and a longitudinal clamping groove, the longitudinal beam is inserted into the longitudinal clamping groove, the end of the cross beam is inserted into the transverse clamping groove, and the splicing piece is connected with a floor of the vehicle body in a fastened mode through the fastening piece. The cross beam, the longitudinal beam and the splicing piece are made of aluminum alloy materials. The cross beam and the longitudinal beam are restrained through the inner walls of the transverse clamping groove and the inner walls of the longitudinal clamping groove, compared with welding in the prior art, a certain relative movement range can exist between the traverse beam and the longitudinal beam instead of rigid connection, the situation that the connecting positions are cracked due to repeated stretching and compression is avoided, and the structural strength of the bottom frame is improved; and the train is saferin the running process.
本发明公开了一种轻轨车体轻质铝合金底架,包括横梁和纵梁,还包括拼接件和紧固件,拼接件上设有横向卡槽和纵向卡槽,纵梁插接在纵向卡槽内,横梁的端部插接在横向卡槽内,拼接件通过紧固件与车体的地板紧固连接;横梁、纵梁以及拼接件采用铝合金材料制成。依靠横向卡槽和纵向卡槽的内壁对横梁和纵梁进行约束,相对于现有技术中的焊接,横梁和纵梁之间可以存在一定的相对运动范围,而不是刚性连接,避免因受到反复的拉伸和压缩导致连接处出现开裂,提高了底架的结构强度,使列车在运行过程中更加安全。
Light aluminum alloy chassis of light rail vehicle body
一种轻轨车体轻质铝合金底架
2021-02-02
Patent
Electronic Resource
Chinese
IPC: | B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES |
Body chassis structure of rail transit vehicle, vehicle body and rail vehicle
European Patent Office | 2024
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