Method for refit trailer into airbag lif bridge

The method for trailer to replace the airbag lifting bridge by itself is that connecting rod assemblies are symmetrically arranged on both sides of the airbag lower bracket, the other end of the adjustable pull rod is connected with the middle hole of the connecting rod assembly through a pull rod pin shaft, and the other end of the connecting rod assembly is provided with a supporting block through a supporting block pin shaft, and the supporting block is fixedly connected with the axle and the leaf spring through a fixing bolt.

The trailer itself changed the use of the airbag.

When most trailers run with no load, all tires touch the ground. During driving, the friction between the tire and the ground increases, which increases the power loss and fuel consumption of the tractor and accelerates the tire wear of the trailer. At present, it is realized by lifting the trailer axle, while the existing lifting mechanism is realized by using air suspension and complex control valve. The structure of air suspension is complicated and expensive.

When most trailers run with no load, all the tires touch the ground, which will inevitably aggravate the tire wear during driving. At present, in order to reduce tire wear and increase the bearing capacity of vehicles, lifting devices are generally used. The existing lifting device has complex structure, poor stability in lifting process and high cost, which is not conducive to the technical development of the whole vehicle.