Vehicle as well as engine and bent axle thereof

The invention discloses a bent axle which comprises connecting arms and connecting rod pins, wherein the connecting arms are detachably connected with the connecting rod pins, the connecting arms are arranged in pairs, the first end parts of each pair of connecting arms are connected with each other through the connecting rod pin, and the second end parts, which are opposite to the first end parts, of two adjacent pairs of connecting arms, are connected with each other through the connecting rod pin. The invention further provides an engine and a vehicle. By adopting the technical scheme, the connecting arms and the connecting rod pins are respectively machined and are connected together through a detachable manner, thus the coaxiality deformation is smaller when being compared with that of the integrated bent axle, and the length of the bent axle is not limited; the quantity of the connecting arms and the connecting rod pins can be selected according to an actual requirement. Meanwhile, the connecting arms a