Stable clamping structure for main shaft of engineering vehicle

The invention discloses a stable clamping structure for a main shaft of an engineering vehicle, which comprises a shaft end assembly for providing a mounting foundation for the main shaft of the vehicle, a clamping assembly for clamping the shaft end assembly and a connecting assembly for limiting and connecting the clamping assembly and the shaft end assembly, and the shaft end assembly is positioned at the end part of the main shaft of the vehicle. The clamping assembly is located on the side portion of the shaft end assembly, and the connecting assembly is located between the shaft end assembly and the clamping assembly. The vehicle main shaft mounting support has the beneficial effects that the structure is simple, the shaft end assembly is arranged, stable mounting support is provided for a vehicle main shaft through a sectional structure of the shaft end assembly, the clamping assembly is arranged, the shaft end assembly is clamped through a symmetrical butterfly-shaped clamping structure of the clampin