What are the types of automobile body structures?

1. According to the structure of the body shell.

It can be divided into skeleton, semi-skeleton and shell.

Body shell usually refers to a rigid spatial structure composed of main load-bearing components such as longitudinal beams, columns and plates connected with them.

(1) skeleton

The shell structure has a complete skeleton (frame), and the body skin plate is fixed on the assembled skeleton. This type of bus body is mostly used in medium and large buses.

(2) Hemiskeleton

The car body only has some skeletons, such as individual columns, arched beams, reinforcements, etc. These bones are either directly connected or connected by skin plates.

(3) shell

The car body has no skeleton, and all the ribs formed when the skin panels are connected are used to replace the skeleton. Cars and trucks mostly use this type of body.

2. according to the purpose

Body can be divided into two categories: bus body and truck body.

(1) Bus bodies are divided into bus bodies and bus bodies.

(2) Truck body: It usually consists of a cab and a cargo compartment.

3. According to the stress of the shell

It is divided into three types: non-loaded body, semi-loaded body and loaded body.

(1) Non-loaded body

The car body and the frame are connected by elastic elements such as springs or rubber pads. In this case, the frame is the basis for installing various automobile assemblies and bearing various loads, but the body installed on the frame is not enough to reinforce the frame and share its load.

(2) Semi-loaded body

The car body and the frame are rigidly connected by bolting, riveting or welding, and the car body bears part of the load of the frame.

(3) Bearing body

The load-bearing car body has no frame, so the car body serves as a base for installing various automobile assemblies and bearing various loads. The load-bearing body is lighter, more rigid and lower in height. The load-bearing car body is welded together by spot welding the front, bottom, sides and rear of the car body.