Shaft joint of composite structure

Abstract

The invention discloses a shaft joint of a composite structure, comprising a shaft joint big end and a shaft joint small end, wherein the shaft joint big end is connected with a steel beam; and the shaft joint small end is used for mounting wheels assembly. An axial line of steel beam mounting holes on the shaft joint big end and the axial line of a neck journal of the shaft joint small end are on two parallel axial lines; the axial line of the neck journal is positioned above the axial line of the steel beam mounting holes; the distance L1 between the two axial lines is 50-150mm; the shaft joint small end comprises the neck journal and a neck journal supporting base; the neck journal supporting base, an adjacent side of the shaft joint big end and hole walls of the steel beam mounting holes are connected with each other to integrally form a common connecting wall; the rear end of the neck journal supporting base is a hollow part; the hollow part is provided with connecting ribs from the rear end of the neck journal supporting base to the external wall of the shaft joint big end; and the connecting ribs are integrally connected with the connecting wall. A hollow part is arranged between the lower side of the neck journal supporting base and the shaft joint big end; the cavity wall of the hollow part is used as reinforcing ribs from the lower side of the neck journal supportingbase to the external side of the shaft joint big end; the inner side of the reinforcing rib is suitable for arc shape in accordance with the steel beam mounting holes; and a damper mounting bracket is arranged at the lower part of the shaft joint big end.

Description

technical field [0001] The invention relates to a shaft joint of combined structure, which belongs to the parts in the non-driving and non-steering support bridge system of automobiles. Specifically, it is a shaft joint of a combined structure that integrates functions such as shock absorber brackets, steel beam mounting holes, and brake mounting holes. Background technique [0002] At present, most non-driven axles adopt a structure in which the centerline of the wheel is coaxial with the centerline of the supporting bridge on non-driving and non-steering supported bridges; at the same time, the axle head is directly butt-welded with the steel beam; parts such as the shock absorber bracket are welded on the on steel beams. The main problem of this structure is that it cannot meet the requirements of using wheels with larger radius and the height of the floor in the compartment or the height of the center of mass of the whole vehicle. At the same time, the welding strength ...

AI Technical Summary

Problems solved by technology

The main problem of this structure is that it cannot meet the requirements of using wheels with larger radius and the height of the floor in the compartment or the height of the center of mass of the whole vehicle. At the same time, the welding strength cannot be guaranteed 100%; additional installation of the rear shock absorber is required. Bracket and other parts, complex structure

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