Double-rear-axle truck frame

Abstract

The invention discloses a double-rear-axle truck frame and relates to the technical field of automobile manufacture. The truck frame is divided into a front section, a transition section and a left vertical beam and a right vertical beam which are arranged on the rear section. The outside distance between the left vertical beam and the right vertical beam in the front section is 1080 mm, and the outside distance between the left vertical beam and the right vertical beam in the rear section is 850 mm. A front cover plate and an engine front suspension bend beam are sequentially arranged on the front section, and a first middle beam, a second middle beam, a balance suspension beam and a rear beam are sequentially arranged on the rear section. Two ends of the engine front suspension bend beam are connected with a middle support to be further connected with the left vertical beam and the right vertical beam through plate spring seats. Two ends of the first middle beam, the second middle beam, the balance suspension beam and the rear beam are connected with the left vertical beam and the right vertical beam through connection plates. The truck frame solves the problem that the existing frame is high in mass, low in loading mass and poor in whole truck fuel economy.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to a vehicle frame for heavy-duty trucks. Background technique [0002] The car frame is the basic component of the car. The traditional car frame, especially the double rear axle truck frame, generally uses left and right longitudinal beams, left and right longitudinal beam reinforcement plates and several beams riveted or bolted to form a load-bearing chassis. The main assemblies such as the engine and the cab are connected as a whole. This kind of frame is generally made into a rectangle or trapezoid and arranged at the bottom of the body; the frame of a heavy-duty vehicle is the base part and main force-bearing part of the vehicle. The carrier connecting other assemblies and components not only bears the weight load of various devices during use, but also bears various loads from inside and outside the car, as well as complex impact loads caused by road bumps an...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a truck frame with double rear axles, which can solve the problems of poor fuel economy and low loading quality of the vehicle due to the large overall mass of the vehicle frame

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