Professional equipment X necessary to talk about the body structure
The car, after 130 years of ups and downs, has changed too much. The steering wheel, suspension, transmission system, seats, etc., have lost sight of the original shadow. Perhaps the only thing that will remain unchanged is that A few wheels now. Of course, the automotive industry is also continuously improving, such as mass production, light weight, and platform production. The biggest advancement in the automotive industry is the establishment of a body structure system.
At present, the rapid development of the automobile industry is due in large part to the advancement of body manufacturing technology. In the field of passenger cars, passenger cars are mostly used; in the field of commercial vehicles, non-bearing cars are the world. However, the load-bearing body and the non-loaded body are only one collective name.
Non-bearing body, which is a structure in which the body and the frame are separated, wherein the frame is a total skeleton for the installation of the vehicle load-bearing, driving, transmission, etc., while the body is mounted on the frame for manned or loaded cargo. The general term for various box-shaped components and covers. The load-carrying body is an overall box structure that combines the frame and the body. Because there is no independent frame, so that the entire body (integral rigid frame made of bottom plate, skeleton, inner and outer skin, roof welding, etc.) is all involved in carrying, so called "bearing type body." It is mechanically a "stress shell structure."
Of course, the body structure can also be divided into the following types: (1) frame type frame; (2) trapezoidal frame; (3) X type frame; (4) backbone frame; (5) platform type vehicle (6) Part of the frame; (7) Space truss frame.
Frame type frame, trapezoidal frame, X type frame, backbone frame, etc. are mostly used in commercial vehicles. The utility model has the advantages of good vibration-damping performance, good safety, protection of the underbody, simple process, easy modification, convenient maintenance and good body rigidity, and is suitable for vehicles with relatively large loads or off-road types.
Platform-type frames, some frame (also called semi-loaded body), and space truss frame are mostly used on cars. Their advantages are light weight, good processability, compact structure, and good safety. Among them, the space truss type frame can achieve better body strength than other types of body when the body weight is the same, but correspondingly, the space utilization rate is not very good, so currently it is only used in sports cars that do not require high space. on.
It is the progress of the body manufacturing system that has developed so many body structures that are applicable to various models. They are used in cars with different mission requirements, enriching our automotive market and contributing to human development.
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