Pneumatic drum brake

• Main Authors: LONG XIANGYUAN, CHEN JINLIN, TU YONGMEI, SONG XIN, YUAN DONG
• Format: Patent
• Language: Chinese; English
• Published: 30.06.2023
• Subjects: BLASTING; BRAKES; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model provides an air pressure drum brake. The air pressure drum brake comprises a brake bottom plate, brake shoes arranged on the two sides of the brake bottom plate, and shoe piece shafts used for connecting the brake bottom plate and the brake shoes. One end of the brake bottom plate extends outwards to form a connecting part, grooves used for containing the connecting part are formed in the same ends of the brake shoes on the two sides, positioning holes matched with the brake shoes are formed in the connecting part, and through holes penetrating through the brake shoes and matched with the positioning holes are formed in the brake shoes. And the shoe shaft is arranged in the positioning hole and the through hole, so that the brake bottom plate is rotationally connected with the brake shoe. According to the pneumatic drum brake, the technical problem that in the prior art, a connecting structure of a brake bottom plate and a brake shoe of a brake is heavy, and consequently the brake is heavy i