Semitrailer suspension assembly with high inclination stability

The utility model relates to the technical field of suspension assemblies, and discloses a semitrailer suspension assembly with high inclination stability, which comprises a suspension assembly, two ends of the suspension assembly are connected with connecting assemblies, the top of each connecting assembly is provided with a damping assembly, the top of each damping assembly is fixedly connected with a cross beam, and each damping assembly comprises a damping cylinder. The top of the inner side of the damping cylinder is movably sleeved with a hydraulic rod, the top of the hydraulic rod is fixedly connected with a top plate, the outer side of the damping cylinder is fixedly sleeved with a fixing ring, and the outer side of the damping cylinder is movably sleeved with a buffer spring. When the shock absorption assembly works, energy generated by impact of the cross beam is absorbed and transmitted to the atmosphere in a heat mode, so that the preliminary buffering and shock absorption effects are achieved, sw