Longitudinal swing arm independant air suspension frame and its application on super low floor semitrailer

Abstract

An individual air suspension system is composed of transverse beam of bridge, longitudinal swing arm, vibration damper, air spring, car height controlling system and position limiting block. The both ends of tansverse beam are linked with longitudinal swing arm via bearings. The wheel assemblage is installed to the flange and finger axle of said longitudinal swing arm whose top end pressure on air spring. The longitudinal swing arm can be swung around a bearing at end of transverse beam. The valve of car height controlling system is communicated with the pneumatic channel of air spring for regulating the height of car. Its application in ultra-low-floor semi-trailer is also disclosed.

Description

technical field [0001] The invention relates to a longitudinal swing arm independent air suspension and an ultra-low floor miniature vehicle transport semi-trailer, which belongs to the field of wheeled vehicle semi-trailers and suspensions. Background technique [0002] At present, there are generally over-limit (ultra-wide, ultra-high, and ultra-long) transportation problems in miniature vehicle transportation, which seriously affects traffic safety. Our country's National People's Congress has made legislation, the Ministry of Public Security, and the Ministry of Communications have made explicit orders to strictly ban illegal over-limit transportation. The root cause of overrun transportation is that the mini-car manufacturers or the transportation department that transports mini-cars, in order to increase transportation productivity (overload), or use flatbed trucks to widen the floor of the cargo platform, and load two rows of mini-cars, resulting in ultra-wide transpo...

AI Technical Summary

Problems solved by technology

The root cause of over-limit transportation is that mini-car manufacturers or transportation departments that transport mini-cars, in order to increase transportation productivity (multiple loading), or use flat-bed trucks to widen the floor of the cargo platform, and load two rows of mini-cars, resulting in ultra-wide transportation

Or use an ordinary car transport vehicle with a floor no less than 900mm to transport a miniature vehicle whose total height is much larger than that of a car, resulting in super-high transport

Some even increase the total length of the semi-trailer at will in order to transport two more mini-cars, resulting in super-long transportation.

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