The invention discloses a protective device for the rear lower portion of a light truck, and belongs to the technical field of automobile accessories. A curved surface with the inner side bent is arranged on one side of the cross beam; a cavity is formed in the other side of the cross beam; one side of each cross beam is fixedly welded with a vertical rod support, the other side of each cross beam is fixedly welded with a vertical rod support, the thickness of each cross beam is 1.2 mm, and each cross beam is arranged in a B shape. By optimizing the structure, the material and the process, the strength requirement of laws and regulations can be met, the safety of the whole vehicle can be better guaranteed, and when force is loaded, the B-shaped structure of each cross beam is subjected to finite element repeated contrastive analysis, and when force is loaded, the B-shaped structure has the advantages that the structure is simple and reliable. Compared with common square-shaped and C-shaped large cavities, the rear protection device has the advantages that the mechanical property is better, high-strength materials and the rolling process are adopted, the B-shaped structure is adopted, and spot welding is conducted through a robot, so that the rear protection device is better in strength and lighter in weight, the safety performance of the whole vehicle structure is better, the light weight is better, and the running stability of the whole vehicle is better.
本发明公开了一种轻型载货汽车后下部防护装置,属于汽车配件技术领域,包括横梁;横梁的一侧设置有呈内侧弯曲的曲面;横梁的另一侧设置有腔体;横梁的另一侧均固定焊接有竖杆支架,横梁的厚度为1.2mm,横梁呈“B”字型设置,通过对结构、材料、工艺的优化,可满足法规强度要求,使得整车的安全性得以更加好的保证,横杆B字型结构,经过有限元反复对比分析,当力加载时,该B字型结构在理论分析下,相当于封闭的3个小腔体,相对于一般的口字型、C字型的大腔体,力学性能更优,采用高强度材料与辊压工艺,采用B字型结构,通过机器人点焊,使得后防护装置强度更优,重量更轻,使得整车结构安全性能更优、轻量化更好与整车运行稳定性更佳。
Protective device for rear lower portion of light truck
一种轻型载货汽车后下部防护装置
26.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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