Bearing Frame, also known as a whole or single-style frame. Beam-type frame for the quality of heavy, bulky, high center of gravity, carrying the idea of Frame is made of solid metal body, and then the engine, suspension and other mechanical parts installed in the car body directly. The body to bear all the load and act as a frame, it should be accurately referred to as "bearing-type frame structure of the body." Frame bearing steel by stamping, welded together, for the design and manufacture of high technology requirements, which is in China is difficult to break through the body design and development of major difficulties. Forming with the frame is a cockpit, engine compartment and the bottom frame,
We can see the smooth body of the car was embedded in the skeleton on the cover. Bearing-type trailers is the mainstream sedan, which will frame the structure and the two parts of a body, light weight, can make use of a large space, low center of gravity, and press molding methods are very suitable for the manufacture of modern mass production. However, in addition to the development and fabrication of a high degree of difficulty, the stiffness (in particular, torsional rigidity) is less than the body-type carrying a major flaw.
This car is not used in day-to-day obviously, but for the high-powered, large torque, high-performance sports car, the frame requires a high rigidity, general body type bearing stiffness becomes insufficient. Thus in recent years, high-performance car, in addition to continuously upgrade the horsepower, each depot has been committed to improving the stiffness of the body, the current approach taken by the main frame to optimize the geometry and the use of local thickening or repairing the ability to enhance the torsional.
Frame as a result of carrying all the parts will all trucks, including the suspension, body and crew fused with good control response, and transmission of vibration and noise are less beam-type frame which is unparalleled. So not only is the car, and even some road environment for the design of good off-road vehicles also have to switch to disposable beam frame and body-type carrying the trend, and this is the so-called "city of sport utility vehicle."
In addition, beam-type frame to the drawbacks of high. Also emerged in recent years the use of carrying large bus-style body (known as "non-beam body" or "non-array body"), as a result of the abolition of the beam, tourism bus can be released at the end of the car around and run through a huge luggage space, for urban bus platform can be reduced on the sidewalk in order to get off high (to tie in with the purchase of special low-Axle). Low-floor bus is an important direction of development.
Steel tube-type frame in front of said load-type frame design and development and production processes are complex and only suitable for mass production. But for a small number of cars produced by what?
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