In conductive slip ring design and manufacture of the above, a lot of factors to consider, as we know, conductive slip ring belongs to the electrical contact application, there are usually two kinds of classification, a belongs to the rotating electric contact, namely the conductive slip ring, conductive ring, electric rotary joint, another belongs to linear sliding electrical contact, the most widely used is the guide of electric locomotive slip ring|slip rings|through hole slip ring|slip ring manufacturerelectric bow, now on the train and the high-speed rail has the extremely widespread application. Electric bow is integrated tribology, hydraulic, pneumatic and tension control of complex mechanical and electrical system. Conductive slip ring is a kind of electric contact friction, transmission of carbon brush, then the metal materials and mercury, at present, more and more popular is multiconductor structure of precious metal wire, is the result of American engineers Norries invention patent in the 1980 s.
Compared with the traditional carbon brush and mercury slip ring, electrical slip ring in the complex system has a very important and obvious advantages of application of conductive slip ring, also known as brush, collector ring or collector ring, in practice, a very important problem is the working life of the slip ring, there are several factors affecting the service life of slip ring work: conductive slip ring structure, different structure of dozens or hundreds of times of life, the material of conductive slip ring, the slip ring assembly process, the working speed of the conductive slip ring, conductive slip ring in the design and type selection, must consider the temperature factor: slip ring around the environment. The speed of the slip ring itself and bearing temperature rise; Slip ring electric contact joule heat; Because the temperature will affect the working reliability of the slip ring, therefore, in the design and type selection, must take into account the influence of the temperature.
Cheng division at the time of selection, first of all, to choose to suit oneself according to the characteristics of the mechanical structure of the slip ring.