Carrier for riveting brake pad of high-speed rail brake

Abstract

The utility model discloses a carrier for riveting a brake pad of a high-speed rail brake, which comprises a carrier body provided with a positioning groove and a stress column, the stress column is arranged on the carrier body in a penetrating manner, and the bottom of the stress column extends out of the back surface of the carrier body; the brake pad is placed on the carrier body, a flange on the back face of the brake pad extends into the positioning groove, the edge of the flange makes contact with the inner wall of the positioning groove, a plurality of rivets are arranged on the brake pad, and the position of each rivet corresponds to one stress column. Compared with the prior art, the back plate of the brake pad is effectively positioned, and meanwhile deformation caused by rivet pressing can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of brake manufacturing, in particular to a carrier for riveting brake pads of high-speed railway brakes. Background Art

[0002] High-speed trains usually use disc brakes. Brake discs are installed on the axles or on the sides of the wheel spokes. The brake calipers are used to press the two brake pads against the brake discs. The friction generates braking force to stop the train. Train brake pads generally use rivet fixing technology to connect the brake pad structure. For example, Chinese patent CN111396474B discloses a high-speed train brake pad with optimized friction particle combination and installation method. By flexibly setting friction particles of various shapes and materials in different areas, the advantages of friction particles of various shapes and materials are comprehensively utilized; the fixing method of friction particles is optimized; the anti-rotation method of friction particles is optimized, and the guide shaft and the mounting hole are optimized to be cylindrical with a non-circular cross-sectional shape.

[0003] The brake pad is mainly composed of a back plate and a friction block. Several friction blocks are riveted to the back plate by rivets. Since a 100-ton hydraulic press is required to squeeze and deform the rivets during the riveting process, the carrier needs to effectively position and support the back plate while avoiding deformation due to excessive force during riveting. Utility Model Content

[0004] The purpose of the utility model is to provide a carrier for riveting brake pads of high-speed railway brakes, which can effectively position the back plate of the brake pads and avoid deformation due to pressure riveting.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a carrier for riveting brake pads of high-speed railway brakes, comprising:

[0006] The carrier body is provided with a positioning groove and a force-bearing column, the force-bearing column is passed through the carrier body, and the bottom of the force-bearing column extends out of the back of the carrier body;

[0007] The brake pad is placed on the carrier body, the retaining edge on the back of the brake pad extends into the positioning groove, the edge of the retaining edge contacts the inner wall of the positioning groove, and a plurality of rivets are arranged on the brake pad, and one rivet position corresponds to one load-bearing column.

[0008] As a further description of the above technical solution:

[0009] A movable block is arranged on an opposite side wall of the positioning groove. The movable block is elastically connected to the carrier body, and a guiding inclined surface is arranged at the end of the movable block.

[0010] As a further description of the above technical solution:

[0011] The movable block is provided with at least one waist-shaped hole, and the bolt passes through the waist-shaped hole and is threadedly connected to the carrier body.

[0012] As a further description of the above technical solution:

[0013] A positioning protrusion is arranged on the bottom surface of the positioning groove, and the positioning protrusion contacts the inner wall of the retaining edge.

[0014] As a further description of the above technical solution:

[0015] A first pad is disposed on an opposite side of the back of the carrier body, and the first pad is detachably mounted on the carrier body.

[0016] As a further description of the above technical solution:

[0017] The length of the bottom of the load-bearing column extending from the back of the carrier body is 0.5-1.0mm.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] 1. In the utility model, the carrier body is placed on the workbench of the hydraulic riveting equipment. When the rivet head is driven by the hydraulic press to perform riveting, the rivet head contacts the rivet shank extending into the friction body, and the rivet shank is squeezed and deformed. Since the lower part of the rivet is supported by the load-bearing column, and the bottom of the load-bearing column extends out of the back of the carrier body, the huge pressure of riveting is not borne by the carrier body, but transmitted to the workbench of the hydraulic riveting equipment by the load-bearing column, which effectively avoids deformation of the carrier body and ensures the reliability of the carrier body for long-term use.

[0020] 2. In the utility model, a movable block is provided on one of the opposite side walls of the positioning groove, the movable block is elastically connected to the carrier body, and a guiding inclined surface is provided at the end of the movable block. When the brake pad is placed on the carrier body, before the retaining edge on the back of the brake pad is completely placed in the positioning groove, the movable block extends out of the side wall of the positioning groove under the elastic force of the elastic element. Therefore, during the placement process, the retaining edge on the back of the brake pad squeezes the guiding inclined surface at the end of the movable block, causing the movable block to slide horizontally and be compressed back into the side wall of the positioning groove. Therefore, several movable blocks on the side wall of the positioning groove can absorb the impact when the brake pad is placed, avoid hard contact between the brake pad and the carrier body, avoid positional deviation of the brake pad and the rivets thereon, and ensure the quality of subsequent riveting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of a vehicle for riveting brake pads on high-speed railway brakes Figure 1 .

[0023] Figure 2 A schematic diagram of the structure of a vehicle for riveting brake pads on high-speed railway brakes Figure 2 .

[0024] Figure 3 A schematic diagram of the structure of a carrier body in a carrier for riveting brake pads of high-speed railway brakes Figure 1 .

[0025] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0026] Figure 5 A schematic diagram of the structure of a carrier body in a carrier for riveting brake pads of high-speed railway brakes Figure 2 .

[0027] Figure 6 The figure is a cross-sectional view of a vehicle used for riveting brake pads of high-speed railway brakes.

[0028] Figure 7 The figure is a schematic diagram of the structure of a brake pad in a vehicle used for riveting brake pads of a high-speed railway brake.

[0029] Legend:

[0030] 1. Carrier body; 11. Positioning groove; 111. Positioning protrusion; 12. Load-bearing column; 13. First pad; 14. Movable block; 141. Guide slope; 142. Waist-shaped hole; 15. Bolt; 2. Brake pad; 21. Flange; 22. Rivet; 23. Friction body; 24. Back plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Example 1

[0033] See also Figure 1-7 The utility model provides a technical solution: a carrier for riveting brake pads of high-speed railway brakes, comprising:

[0034] The carrier body 1 is provided with a positioning groove 11 and a force-bearing column 12. The force-bearing column 12 is penetrated through the carrier body 1. The bottom of the force-bearing column 12 extends out of the back of the carrier body 1. The force-bearing column 12 can be installed in the installation hole on the carrier body 1 by interference fit;

[0035] The brake pad 2 is placed on the carrier body 1 , and the rib 21 on the back of the brake pad 2 extends into the positioning groove 11 , and the edge of the rib 21 contacts the inner wall of the positioning groove 11 . A plurality of rivets 22 are arranged on the brake pad 2 , and the position of one rivet 22 corresponds to one load-bearing column 12 .

[0036] The brake pad 2 further comprises a friction body 23 and a back plate 24 . The retaining edge 21 is arranged on the back of the back plate 24 . The friction body 23 is placed on the back plate 24 . The rivet shank of the rivet 22 passes through the back plate 24 and then extends into the friction body 23 .

[0037] A movable block 14 is provided on an opposite side wall of the positioning groove 11. The movable block 14 is elastically connected to the carrier body 1, and a guide slope 141 is provided at the end of the movable block 14. When the brake pad 2 is placed on the carrier body 1, before the retaining edge 21 on the back of the brake pad 2 is completely placed in the positioning groove 11, the movable block 14 extends out of the side wall of the positioning groove 11 under the elastic force of an elastic element (specifically, a spring or the like) so that the retaining edge 21 on the back of the brake pad 2 squeezes the guide slope 141 at the end of the movable block 14 during the placement process, so that the movable block 14 slides horizontally and is compressed back into the side wall of the positioning groove 11. Therefore, several movable blocks 14 on the side wall of the positioning groove 11 can absorb the impact when the brake pad 2 is placed, avoid hard contact between the brake pad 2 and the carrier body 1, avoid positional deviation of the brake pad 2 and the rivet 22 thereon, and ensure the quality of subsequent riveting.

[0038] The movable block 14 is provided with at least one waist-shaped hole 142, and the bolt 15 passes through the waist-shaped hole 142 and is threadedly connected to the carrier body 1. Specifically, two waist-shaped holes 142 can be provided. The bolt 15 is only used to limit the smooth sliding of the movable block 14 and prevent the movable block 14 from detaching upward from the surface of the carrier body 1, but does not lock the movable block 14 or limit the sliding of the movable block 14.

[0039] A positioning protrusion 111 is provided on the bottom surface of the positioning groove 11, and the positioning protrusion 111 contacts the inner wall of the retaining edge 21. The positioning protrusion 111 further positions and supports the brake pad 2 to ensure the riveting quality.

[0040] A first pad 13 is provided on an opposite side of the back of the carrier body 1, and the first pad 13 is detachably mounted on the carrier body 1. When the carrier body 1 is placed on a conveying device such as a double-speed chain conveyor line for transportation, the first pad 13 contacts the conveying device, and is easy to replace after being worn, thereby reducing maintenance costs.

[0041] The length of the bottom of the force-bearing column 12 extending from the back of the carrier body 1 is 0.5-1.0 mm, which can avoid the carrier body from being stressed during riveting, and can also avoid the excess, so as to ensure the stable placement and transportation of the carrier body 1.

[0042] Working principle: Place the carrier body 1 on the workbench of the hydraulic riveting equipment. When the rivet head is driven by the hydraulic press to press the rivet 22, the rivet head contacts the rivet shank of the rivet 22 extending into the friction body 23, and the rivet shank is squeezed and deformed. Since the bottom of the rivet 22 is supported by the load-bearing column 12, and the bottom of the load-bearing column 12 extends out of the back of the carrier body 1, the huge pressure of the press riveting is not borne by the carrier body 1, but is transmitted by the load-bearing column 12 to the workbench of the hydraulic riveting equipment (or to the mold on the workbench for fixing the carrier body 1), which effectively avoids deformation of the carrier body 1 and ensures the reliability of the carrier body 1 during long-term use.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A carrier for riveting brake pads of high-speed railway brakes, characterized in that: include: A carrier body, on which a positioning groove and a force-bearing column are arranged, the force-bearing column is passed through the carrier body, and the bottom of the force-bearing column extends out of the back of the carrier body; A brake pad is placed on the carrier body, the retaining edge on the back of the brake pad extends into the positioning groove, the edge of the retaining edge contacts the inner wall of the positioning groove, and a plurality of rivets are arranged on the brake pad, and one rivet position corresponds to one load-bearing column.

2. A carrier for riveting brake pads of high-speed railway brakes according to claim 1, characterized in that: A movable block is arranged on an opposite side wall of the positioning groove, the movable block is elastically connected to the carrier body, and a guiding inclined surface is arranged at the end of the movable block.

3. A carrier for riveting high-speed railway brake pads according to claim 2, characterized in that: The movable block is provided with at least one waist-shaped hole, and the bolt passes through the waist-shaped hole and is threadedly connected to the carrier body.

4. A carrier for riveting high-speed railway brake pads according to claim 1, characterized in that: A positioning protrusion is arranged on the bottom surface of the positioning groove, and the positioning protrusion contacts the inner wall of the retaining edge.

5. The high-speed railway brake pad riveting carrier according to claim 1, characterized in that: A first pad is disposed on an opposite side of the back side of the carrier body, and the first pad is detachably mounted on the carrier body.

6. A carrier for riveting high-speed railway brake pads according to claim 1, characterized in that: The length of the bottom of the force-bearing column extending out from the back of the carrier body is 0.5-1.0 mm.

7. The high-speed railway brake pad riveting carrier according to claim 1, characterized in that: The brake pad also includes a friction body and a back plate, the retaining edge is arranged on the back side of the back plate, the friction body is placed on the back plate, and the rivet shank of the rivet passes through the back plate and then extends into the friction body.

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