A self-adjusting friction contact brake pad structure

Abstract

The utility model provides a kind of self-regulating friction contact brake shoe structure, specifically belongs to rail transit equipment technical field;Through the outer edge of disc spring and the back plate of friction body are linked, and the inner edge of disc spring is contacted with the groove bottom surface set on steel back, the setting makes that disc spring can produce elastic deformation first time when disc spring is subjected to load, by height and angle fine adjustment, the effective friction area between brake shoe and brake disc can be greatly improved.By the utility model discloses a steel back, disc spring, snap spring and friction block assembly;Friction block assembly is provided on one side of steel back, and friction block assembly includes friction body, friction body back plate and connecting shaft, friction body back plate and connecting shaft are fixedly installed on the side wall of steel back towards friction body, friction body back plate is located between steel back and friction body, one end of connecting shaft is connected with steel back, the side wall of steel back towards friction block assembly is equipped with notch, disc spring is installed in notch, recess is opened in the other side wall of steel back, and snap spring is installed in recess.

Claims

1. A self-adjusting friction contact brake structure, characterized in that, Includes a steel back (1), a disc spring (5), a retaining ring (6), and a friction block assembly; A friction body (2) is provided on one side of the steel back (1). The friction body (2), the friction body back plate (3) and the connecting shaft (4) constitute the friction block assembly. The friction body back plate (3) is fixedly installed on the side wall of the friction body (2) facing the steel back (1). The connecting shaft (4) is fixedly connected to one end of the friction body back plate (3). The friction body back plate (3) is located between the steel back (1) and the friction body (2). A groove is provided on the side wall of the steel back (1) facing the friction block assembly. A disc spring (5) is installed in the groove. A groove is provided on the other side wall of the steel back (1). A retaining spring (6) is installed in the groove. The other end of the connecting shaft (4) passes through the disc spring (5) and the steel back (1) in sequence. The retaining spring (6) is fixedly connected to the other end of the connecting shaft (4).

2. The self-adjusting friction contact brake structure according to claim 1, characterized in that, One end of the connecting shaft (4) is a spherical protrusion structure, and the other end of the connecting shaft (4) is a cylindrical structure of different diameters.

3. The self-adjusting friction contact brake structure according to claim 1, characterized in that, The groove on the steel back (1) is a ring structure, and a through hole is opened in the middle of the groove. A spherical base is provided around the through hole. The spherical base is a spherical protrusion structure corresponding to the connecting shaft (4).

4. The self-adjusting friction contact brake structure according to claim 1, characterized in that, The outer edge of the disc spring (5) is connected to the back plate (3) of the friction body, and the inner edge of the disc spring (5) is in contact with the bottom surface of the groove on the steel back (1).

5. The self-adjusting friction contact brake structure according to claim 1, characterized in that, A positioning block (7) is fixedly installed on the top wall of the steel back (1) facing the friction block assembly.

6. The self-adjusting friction contact brake structure according to claim 1, characterized in that, The cross-section of the friction body (2) has a rectangular shape with rounded corners, and multiple friction block assemblies are provided on the steel back (1).

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