| 摘要 |
A motor vehicle front subframe 44 comprises a pair of main longitudinal beams 45 each formed from an extrusion 12 with a flange casting 13 at the rear end and a suspension tower 47 at the other end. A pair of lower longitudinal beams 48, formed as castings, extend parallel to the main longitudinal beams 45, 46 and are connected by a welded cross member 49. Each lower longitudinal beam 45, 46 has a vertical rear flange 51 and a generally horizontal front flange 52 where it is attached to a corresponding flange face at the lower end of each suspension tower 47. Two intermediate longitudinal beams 53 are attached to the suspension towers 47 and a main cross-member 54 and forward of this are two crush cans 55 to which is attached a bumper armature 56. The front subframe 44 is part of a power train and chassis module which includes an engine, a longitudinally extending torque tube 65 attached to the rear of the engine by a bell housing, a rear transmission and final drive assembly attached to a rearward end of the torque tube 65 and a rear subframe mounted on the rear transmission and final drive assembly. The vehicle has a body with a passenger compartment and vertical pillars just forward of the passenger compartment. The body is assembled to the power train and chassis module by lowering the body with the of the vertical pillars just clear of the rear faces of the flanges 13 and 51 until various fixing holes in the flanges 13 and 51 align with those in the pillars. The body 58 is then moved forward to close the gap between the flanges 13 and 51 and the pillars. Suitable bolts or set screws are then inserted to secure the front subframe 44 to the body and the rear subframe 68 is attached to the body. <IMAGE> |
