Automatic-inflation wheel side framework-type rotating joint assembly with air pipe for trailer tire

Abstract

The invention discloses an automatic-inflation wheel side framework-type rotating joint assembly with an air pipe for a trailer tire, and relates to a vehicle tire inflation technology. The assembly is characterized in that a rotating joint sub-assembly (100) is connected with a mounting bracket sub-assembly (200), and a tire valve air pipe sub-assembly (300) is connected with the mounting bracket sub-assembly (200); a one-way ventilating air chamber is formed by the rotating joint sub-assembly (100) and an inner cavity of the tire valve air pipe sub-assembly (300); a rotating part is connected with a rotating cavity, a stationary part is connected with a stationary cavity, and an integrated air channel is arranged between the rotating part and the stationary part; and a framework oil seal completes the air channel seal of the rotating part and the stationary part, air leakage is avoided. The automatic-inflation wheel side framework-type rotating joint assembly has the advantages of simple structure and convenient operation, installation and maintenance for a driver. Air inflation can be completed under the condition of air pressure supply, pressure measuring can be completed by manual operation, and the air channel of a tire and the assembly ventilates in a one-way manner.

Description

technical field [0001] The invention relates to vehicle tire inflation technology, in particular to a trailer tire automatic inflation wheel frame rotary joint with air pipe assembly. Background technique [0002] With the rapid development of automobile technology, people's demand for tire pressure control is increasing day by day, and the use of special vehicles makes this demand more obvious. As a special-purpose vehicle, the control of tire pressure is not only related to tire wear and vehicle fuel consumption, but also related to driving safety. Trailer axles are generally not equipped with rotary air seals, making it difficult to refill tires while the trailer is running. [0003] The rotary joint can solve this problem very well. The rotary joint includes three parts, namely the rotating part, the sealing part and the static part. The rotating part is connected with the rotating chamber, and the static part is connected with the static chamber. There is a complete g...

AI Technical Summary

Problems solved by technology

[0005] The shortcomings and deficiencies of the existing technology are: domestic rotary joints still have a large gap compared with foreign products, and their service life is shorter than similar foreign products, generally less than 5 years; the reliability is not high, and air leakage is easy during the rotation process

The application of rotary joints on tires has not been involved in the domestic market. At present, the application and development of domestic rotary joints and automobile tires is still in a blank, and the products are completely dependent on imports.

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