Low friction coefficient synthetic brake shoe backing

Abstract

The utility model discloses a low friction coefficient synthetic brake shoe, including arc shoe back body, the shoe nose that is connected in the middle part of arc shoe back body, and the shoe nose both sides are equipped with the shoe sign hole, it is characterized in that the arc shoe back body of shoe nose both sides is equipped with three above -mentioned rectangular material grabbing hole, and the circumferential both ends of each rectangular material grabbing hole are all fixed with material grabbing board, and the material grabbing board all are located the inboard of arc shoe back body, and the two material grabbing boards of each rectangular material grabbing hole all are inclined, and are set up in the setting of the neck of the bottle, in the arc shoe back body outside of shoe nose both sides is all fixed with two shoe block positioning baffle, and two shoe block positioning baffles all are located the radial of the arc surface that is located, and the material grabbing hole is equipped between two shoe block positioning baffles. The utility model can improve the gripping force of friction body material, not easy to deform, can prevent the falling of friction body material, thereby ensures the brake shoe braking effect and operation safety.

Description

Technical Field

[0001] This utility model relates to a synthetic brake shoe backing, and more particularly to a synthetic brake shoe backing connected to a friction body with a low coefficient of friction. Background Technology

[0002] In locomotives used in Southeast Asian countries such as Indonesia, the composite brake shoes are installed on the brake shoe brackets of the braking system and need to withstand greater loads. Composite brake shoes are made by bonding and pressing a brake shoe back with a low-friction coefficient friction material. However, the friction material of existing composite brake shoes used in railway locomotives has low bonding strength, therefore multiple gripping holes are required on the brake shoe back to prevent them from detaching. The existing composite brake shoe back includes an arc-shaped back body and a nose in the middle of the arc-shaped back body. Slip holes on both sides of the nose connect to the locomotive's brake shoe bracket. Several circular gripping holes are provided on the arc-shaped back body on both sides of the nose. Friction material is applied to the inner side of the arc-shaped back body and into the circular gripping holes to form the composite brake shoe. However, the circular gripping holes have a weak gripping force on the friction material, making them prone to separation and detachment, affecting the braking effect and operational safety. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned shortcomings of the existing technology by providing a low-friction coefficient synthetic brake shoe backing, which can improve the gripping force on the friction material, prevent deformation, and prevent the friction material from falling off, thereby ensuring the braking effect and operational safety of the brake shoe.

[0004] To achieve the above objectives, this utility model provides a low-friction coefficient synthetic brake shoe backing, comprising an arc-shaped backing body and a nose connected to the middle of the arc-shaped backing body, with shoe-stick holes on both sides of the nose; characterized in that the arc-shaped backing body on both sides of the nose is provided with three or more rectangular gripping holes, each rectangular gripping hole having a gripping plate fixedly connected to both ends of its circumference, the gripping plates being located on the inner side of the arc-shaped backing body, and the two gripping plates of each rectangular gripping hole being inclined and constricted; two shoe-support positioning baffles are fixedly connected to the outer side of the arc-shaped backing body on both sides of the nose, the two shoe-support positioning baffles being located radially on their respective arc surfaces, with a gripping hole between the two shoe-support positioning baffles.

[0005] This invention features multiple rectangular gripping holes on both sides of the brake shoe back body, into which the friction material is applied. The two gripping plates on either side are tapered, resulting in greater gripping force. The gripping holes between the two brake shoe support positioning baffles also increase gripping force, preventing the friction material from falling off. The two brake shoe support positioning baffles form a positioning stop and connect with the brake shoe support frame, reducing deformation of the arc-shaped brake shoe back body, thereby ensuring the brake shoe braking effect and operational safety. As a further improvement of this utility model, the rectangular material gripping holes on both sides of the tile nose and the two tile support positioning baffles are symmetrically arranged; this can improve the gripping force on the friction material and the uniformity of the force on the tile back body during braking. As a further improvement of this utility model, the tile nose is riveted to the middle of the arc-shaped tile back body, and the tile skewer hole is a tile skewer positioning square hole; this facilitates the connection between the tile nose and the arc-shaped tile back. In summary, this invention can improve the gripping force on the friction material, prevent deformation, and prevent the friction material from falling off, thereby ensuring the braking effect and operational safety of the brake shoe. Attached Figure Description

[0006] Figure 1 This is a front view of an embodiment of the present utility model.

[0007] Figure 2 for Figure 1 Top view.

[0008] Figure 3 for Figure 1 AA section diagram. Detailed Implementation

[0009] The present invention will now be described in further detail with reference to the accompanying drawings.

[0010] like Figures 1 to 3 As shown, a low-friction coefficient synthetic brake shoe backing of this embodiment includes an arc-shaped backing body 1 and a nose 2 connected to the middle of the arc-shaped backing body by riveting. The nose 2 has square holes 3 for positioning the shoe on both sides. The arc-shaped backing body 1 on both sides of the nose 2 has four rectangular gripping holes 4. Each rectangular gripping hole 4 has a gripping plate 5 fixedly connected to both ends of its circumference. The gripping plates 5 are all located on the inner side of the arc-shaped backing body 1, and the two gripping plates 5 of each rectangular gripping hole 4 are inclined and constricted. Two shoe support positioning baffles 6 are integrally fixed to the outer side of the arc-shaped backing body 1 on both sides of the nose 2. The two shoe support positioning baffles 6 are located on the radial side of the arc surface. A gripping hole 7 is provided between the two shoe support positioning baffles 6. The rectangular gripping holes 4 and the two shoe support positioning baffles 6 on both sides of the nose 2 are symmetrically arranged. The two shoe support positioning baffles 6 are located on the center line of the width of the arc-shaped backing body 1.

[0011] This invention features multiple rectangular gripping holes 4 and 7 on both sides of the brake shoe back body 1. When connected to a low-friction coefficient friction body, the friction body material is laid in the rectangular gripping holes 4 and 7. Furthermore, the two gripping plates 5 on both sides of the rectangular gripping holes 4 are constricted, providing greater gripping force and preventing the friction body material from falling off. The two brake shoe support positioning baffles 6 form positioning stops and connect with the brake shoe support bracket, reducing the deformation of the arc-shaped brake shoe back body 1, thereby ensuring the brake shoe braking effect and operational safety. The symmetrically arranged rectangular gripping holes 4 and two brake shoe support positioning baffles 6 improve the gripping force on the friction body material and the uniformity of force on the brake shoe back body during braking, further enhancing the braking effect.

Claims

1. A low-friction coefficient synthetic brake shoe backing, comprising an arc-shaped backing body and a nose connected to the middle of the arc-shaped backing body, wherein nose is provided with squeegee holes on both sides; characterized in that Each of the two sides of the arched tile back body has three or more rectangular material-grabbing holes. Each rectangular material-grabbing hole has a material-grabbing plate fixedly connected to both ends of its circumference. The material-grabbing plates are located on the inner side of the arched tile back body, and the two material-grabbing plates of each rectangular material-grabbing hole are inclined and constricted. Two tile support positioning baffles are fixedly connected to the outer side of the arched tile back body on both sides of the tile nose. The two tile support positioning baffles are located on the radial side of the arc surface, and a material-grabbing hole is provided between the two tile support positioning baffles.

2. The low-friction coefficient synthetic brake shoe backing as described in claim 1, characterized in that... The rectangular material-grabbing holes on both sides of the tile nose and the two tile support positioning baffles are symmetrically arranged.

3. A low-friction coefficient synthetic brake shoe backing as described in claim 1 or 2, characterized in that... The tile nose is riveted to the middle of the arc-shaped tile back body, and the tile skewer hole is a square hole for tile skewer positioning.

Images