Fixed mounting structure suitable for lorry-mounted crane

The invention belongs to the technical field of crane design, and particularly relates to a fixed mounting structure suitable for a lorry-mounted crane, which comprises three groups of bolt assemblies and two limiting plates, under the condition that a vehicle is not provided with an auxiliary beam, limiting is conducted through a bolt assembly and a limiting plate, and the limiting plate is of a sheet body structure, is installed below a crane cross beam and is connected with the crane cross beam in a matched mode through two 90-degree limiting faces. The limiting plates are arranged on the left side and the right side respectively, clamp the longitudinal beam of the vehicle in the middle and are connected with the longitudinal beam of the vehicle through bolts and nuts, and the crane can be fixed and limited in the longitudinal direction and the left-right direction of the vehicle at the same time. The lorry-mounted crane solves the problems of mounting, fixing and limiting of the lorry-mounted crane under