一种鼓式机刹车轮制动盘
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU ZONGSHEN VEHICLE IND CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-17
Smart Images

Figure CN224515748U_ABST
Abstract
Claims
1. A drum machine brake wheel brake disc, characterized in that, The system includes a brake disc welding assembly. One end of the brake disc welding assembly is equipped with a fixed support point. The brake disc welding assembly also has an upper connecting support point and a lower connecting support point. An upper brake shoe is movably mounted on the upper connecting support point, and a lower brake shoe is movably mounted on the lower connecting support point. The adjacent ends of the upper and lower brake shoes are movably engaged with the fixed support point. A brake assembly is also installed at the adjacent ends of the upper and lower brake shoes. The brake assembly is placed close to the fixed support point. An adjustment assembly is installed at the other adjacent ends of the upper and lower brake shoes. The braking assembly includes a brake rocker arm, one end of which is located at the lower end of the brake disc welding assembly, and the other end extends out of the brake disc welding assembly. A connecting shaft is installed on one end of the brake rocker arm located at the lower end of the brake disc welding assembly. The connecting shaft is movably located on the brake disc welding assembly, with its upper end located inside the brake disc welding assembly and its lower end located at the lower end of the brake disc welding assembly. A swing-type brake wedge is installed on the connecting shaft located inside the brake disc welding assembly. The adjustment assembly includes a gap adjustment push rod and a tensioning spring. One end of the gap adjustment push rod is movably engaged in slot one and the other end is movably engaged in slot two. One end of the tensioning spring is movably mounted on the upper brake shoe and the other end is movably mounted on the lower brake shoe. The gap adjusting push rod includes a sleeve, which is a hollow structure with open ends. The inner side wall of the sleeve is threaded, and an actuating element is installed on the outer side wall of the sleeve. A first snap-fit element and a second snap-fit element are movably installed inside the sleeve. The first snap-fit element is threadedly connected to the sleeve, and the second snap-fit element is threadedly connected to the sleeve. The first snap-fit element is movably snapped into a first slot, and the second snap-fit element is movably snapped into a second slot.
2. A drum brake wheel brake disc according to claim 1, wherein, The upper brake shoe has a V-shaped groove at one end near the fixed fulcrum and the lower brake shoe has a V-shaped groove at one end near the fixed fulcrum. The swing brake wedge is movably engaged in the V-shaped groove.
3. A drum brake wheel brake disc according to claim 1, wherein, An upper return spring is movably mounted on the upper wall of the upper brake shoe, with the other end of the upper return spring movably mounted on a fixed fulcrum. A lower return spring is movably mounted on the upper wall of the lower brake shoe, with the other end of the lower return spring movably mounted on a fixed fulcrum.
4. A drum brake wheel brake disc according to claim 1 wherein, The upper brake shoe has a slot one at the end away from the fixed support point, and the lower brake shoe has a slot two at the end away from the fixed support point. The slot one and slot two are placed opposite each other.
5. A drum brake wheel brake disc according to claim 1 wherein, The brake drum is movably attached to the brake disc welding assembly, and the upper brake shoe and the lower brake shoe are both located inside the brake drum.
6. A drum brake wheel brake disc according to claim 1 wherein, The upper and lower connecting fulcrums are placed symmetrically about the horizontal central axis of the brake disc welding assembly.
7. A drum brake wheel brake disc according to claim 1 wherein, The upper and lower connecting fulcrums have the same structure. The upper connecting fulcrum includes a connecting rod. The lower end of the connecting rod is located on the bottom wall of the brake disc welding assembly. A connecting seat is installed on the connecting rod. The upper brake shoe is movably installed on the connecting seat. A spring is installed between the connecting seat and the upper wall of the connecting rod.