Main structural features of TDJ-302 type dowty retarder

TDJ-302 type dowty retarder is composed of sliding cylinder assembly and housing assembly. The main structural characteristics of TDJ-302 type dowty retarder are as follows:

TDJ-302 type dowty retarder is composed of sliding cylinder assembly and housing assembly. The sliding cylinder assembly is composed of a sliding cylinder, a piston rod assembly, a seal assembly, and a thrust seat. The piston rod assembly consists of a piston, a speed valve plate, a speed valve spring, a pressure valve, a pressure valve inner and outer spring, a support ring, O-shaped seal ring, pressure regulating screw, spring seat, etc .; shell assembly consists of shell, studs, nuts, dust ring, anti-shock pin and so on. The dowty retarder is fastened on the inside of the rail with stud bolts, and the head of the sliding oil cylinder is a mushroom-shaped head.

1. The speed valve is adjustable, and the critical speed is classified by changing the opening of the speed valve and the diameter of the spring steel wire of the speed valve, which are divided into I to VI;

2. The dowty retarder pressure valve is a ball valve structure, which has a good speed regulation performance, and effectively controls the overspeed slipping vehicle;

3. The opening pressure of the pressure valve of the dowty retarder is adjustable, which is adjusted by the pressure adjusting screw at the root of the piston rod;

4. Adopting advanced combined sealing technology to improve the service life of the dowty retarder under severe working conditions.