Conversion output mode's shaft coupling and fire engine

The utility model discloses a conversion output mode's shaft coupling and fire engine, including bearing housing, dabber and bearing, the dabber passes through the bearing with the bearing housing and couples into concentricity structure, and bearing housing and bearing inner race cooperation connect firmly on the flange of internal spline output formula power takeoff, as the bearing base, the dabber is processed into the one end external splines, and the other end is the structural style of flange, and dabber and bearing inner race cooperation through dabber external splines and the cooperation of power takeoff internal spline, are got rid of power, convert the internal spline output formula of power takeoff to outward flange output, and the power takeoff can couple with the transmission shaft, and then adjustment oil pump position, solves the narrow and small problem of oil pump installation space, and the space utilizes rationally, and oil pump noninterference fire engine chassis is with low costs, convenient operation, both joinable cartridge formula oil pumps, but also flange formula oil pump, commonality interchangeability is good.