Zero-dragging disc brake

CN222377062UActive Publication Date: 2025-01-21BEIJING AUTOMOBILE WORKS CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202420637542.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-29
Publication Date
2025-01-21
Estimated Expiration
2034-03-29

AI Technical Summary

Technical Problem

The existing floating caliper disc brakes do not return to position in time after braking, causing the brake disc and the friction plate to continue to contact and friction to produce drag torque, increasing the driving resistance of the whole vehicle, affecting fuel economy, and at the same time, the friction plate is subject to stress. Unevenness leads to bias wear and the U-shaped spring is prone to falling off.

Method used

Four active return springs are added in front of the caliper bracket and the brake friction pad. The caliper bracket provides a support point for the active return spring to realize the synchronous return of the brake friction pads on both sides to ensure that the friction pad can be in contact with the brake pads when not braking. The brake disc separates and returns to the position of the piston end surface.

Benefits of technology

It realizes the uniform return of the brake pads, avoids the friction pad offset wear and spring falling off problems, reduces fuel consumption, and ensures zero drag torque of the floating brake caliper.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222377062U_ABST
    Figure CN222377062U_ABST
Patent Text Reader

Abstract

The utility model discloses a zero-dragging disc brake, and belongs to the technical field of automobile manufacturing. The brake device mainly comprises a caliper support, a brake disc is arranged in the caliper support, brake friction plates are arranged on the two sides of the brake disc respectively, the brake disc is in clearance fit with the caliper support and the brake friction plates, and active return springs are arranged between the two ends of the two brake friction plates and the caliper support respectively. The four active return springs are additionally arranged in front of the caliper support and the two brake friction plates, supporting points are provided for the active return springs through the caliper support, synchronous return of the brake friction plates on the two sides is achieved, and the problems that due to the fact that stress of the friction plates is unbalanced, the friction plates are abraded in an offset mode, and the springs are prone to falling off are solved.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Disc brake and car

    CN205446488U