Vacuum tire structure: carcass, cord, outer tread. Principle: Using the principle of inflatable expansion, the internal gas of the tire is closed by the outer tire sealing gas and the outer structure of the wheel hub, and the outer tire plays the role of the inner tube. Vacuum tires and wheel rims are sealed as one, its manufacturing accuracy requirements are high, most of them are die-cast aluminum integrated wheel hubs, the positioning between the tires is high, and the radial runout of the wheels is extremely small.
No matter which kind of car's vacuum tire, its big principle structure is all the same, which is composed of a rigid rim, an external nozzle, and a vacuum pump tire. The three items look relatively simple, but there is its manufacturing process structure, the rigid ring is thicker and harder than the general steel rim, which is to support the vacuum pump tire side sealing, add a real gas nozzle, that is, refueling and pumping conveniently, installed on the rigid ring.
Common problems of vacuum tires in factory transportation and installation
At the time of leaving the factory: vacuum tires with different specifications are very critical in the outer packaging box at the factory, and the plastic parts or the whole piece of the carton are completely unfolded and fixed, and it is not allowed to deform. The steel edge layer of the tire can not have pry wounds and deformation marks, so how to hit the standard air pressure will not be tightly sealed, and there is a leaky condition. The outside also needs to be wrapped in a plastic layer to avoid scratch damage to the tire, so that the sealing layer destroys the vacuum tire can not be applied.
Installation: When installing, the same model specifications should be installed according to the original installed tire model, and the manufactured wheel and vacuum tire model specifications should have standardized model specifications.